glossary

VHP4Safety Glossary

Welcome to the VHP4Safety Glossary!

The Virtual Human Platform for Safety Assessment (VHP4Safety) is a project to support chemical and pharmaceutical safety testing without using laboratory animals and animal testing, and funded by the Netherlands Research Council (NWO). For more information on the funding, please see the Funding section at the end this page.

On this page, you can find (a set of) the terminology and their definitions in the context the terms are used in the project. The terms are categorized below based on the context that the term is used, such as risk assessment, chemicals, or computer infrastructure. In addition, the abbreviations, references, and some supplementary information depending on the category that the term belongs to are presented below.

The VHP4Safety Glossary has been created and maintained by (in alphabetical order) Ozan Çınar, Marvin Martens, Javier Millán Acosta, Egon Willighagen. The terms, their descriptions and other additional information have been provided by the members and partners of the VHP4Safety project.

This work is licensed under the CC-BY 4.0 International.

Development Version and Contribution

This glossary has been under development since 2022 and is still continuously developed. This means that new terms can be added in the future depending on their prevalence and frequency of use among the project members. In addition, unfortunately, not all the terms and their definitions currently meet the community standards1, although our goal is to achieve this status.

This glossary is developedt as a GitHub repository. The readers and users of the platform are welcome to contribute. To make new entry queries, please create an issue here using the issue template. For other issues, suggestions, or problems, please create an issue here. Experienced GitHub users are encouraged to submit pull requests. More information can be found in the project README.

Case Studies & Process Flow Steps

Term Abbreviation Definition related_to
Adverse Outcome (Process Flow Step) A process flow step that is named after adverse outcome, although specifically refers to clinical and epidemiological effects. It categorizes services that provide information on the toxicological endpoints and adverse outcomes at a clinical or epidemiological level of chemical exposures. VHP0000025
Case Study A human-health scenario used as a guiding use case within the VHP4Safety Project to integrate data, models, and tools, and to formulate specific regulatory questions that the Virtual Human Platform should be able to answer.
Exposure (Process Flow Step) A process flow step that is named after exposure assessment and categorizes services that evaluate and analyze the route, duration, magnitude and frequency of exposure of an organism or (sub)population to one or multiple chemicals. VHP0000104
Chemical Characteristics and Hazard identification (Process Flow Step) A process flow step that is named after hazard assessment and considered to be cheminformatics-based. It categorizes services that use molecular structures, chemical descriptors, and databases to predict or analyze the properties, behavior, and potential risks of chemical substances. VHP0000102
Process Flow Step One of the generic stages in the VHP4Safety human-based risk-assessment workflow, used to structure tools, data and models along the risk assessment process.
Regulatory Question RQ A concrete, decision-oriented risk-assessment question, formulated for a given case study, that the Virtual Human Platform should help to answer step-by-step.
Toxicodynamics (Process Flow Step) A process flow step that is named after Toxicodynamics and categorizes services that use or extend the (quantitative) AOP framework to analyze and assess the interaction of chemicals with biological targets. VHP0000102
Toxicokinetics (Process Flow Step) A process flow step that is named after toxicokinetics and categorizes services that analyze the kinetics (absorption, distribution, metabolism and excretion) of chemicals and how these processes influence the internal dose. The kinetics step contains four physiological processes substeps: Absorption, Distribution, Metabolism, and Excretion which can be captured in PBK models. VHP0000102

Chemicals

Term Abbreviation Definition SMILES
bisphenol A BPA chemical compound, InChIKey IISBACLAFKSPIT-UHFFFAOYSA-N, CAS registry number 80-05-7 ref1 ref2 CC(C)(C1=CC=C(C=C1)O)C2=CC=C(C=C2)OCC(C)(C1=CC=C(C=C1)O)C2=CC=C(C=C2)O
bisphenol AF BPAF chemical compound, InChIKey ZFVMWEVVKGLCIJ-UHFFFAOYSA-N, CAS registry number 1478-61-1 ref1 ref2 C1=CC(=CC=C1C(C2=CC=C(C=C2)O)(C(F)(F)F)C(F)(F)F)OC1=CC(=CC=C1C(C2=CC=C(C=C2)O)(C(F)(F)F)C(F)(F)F)O
bisphenol F BPF chemical compound, InChIKey PXKLMJQFEQBVLD-UHFFFAOYSA-N, CAS registry number 620-92-8 ref1 ref2 C1=CC(=CC=C1CC2=CC=C(C=C2)O)OC1=CC(=CC=C1CC2=CC=C(C=C2)O)O
bisphenol S BPS chemical compound, InChIKey VPWNQTHUCYMVMZ-UHFFFAOYSA-N, CAS registry number 80-09-1 ref1 ref2 C1=CC(=CC=C1O)S(=O)(=O)C2=CC=C(C=C2)OC1=CC(=CC=C1O)S(=O)(=O)C2=CC=C(C=C2)O
bisphenol Z BPZ chemical compound, InChIKey SDDLEVPIDBLVHC-UHFFFAOYSA-N, CAS registry number 843-55-0 ref1 ref2 C1CCC(CC1)(C2=CC=C(C=C2)O)C3=CC=C(C=C3)OC1CCC(CC1)(C2=CC=C(C=C2)O)C3=CC=C(C=C3)O
caffeine chemical compound used as a stimulant, InChIKey RYYVLZVUVIJVGH-UHFFFAOYSA-N, CAS registry number 58-08-2 ref1 ref2 Cn1c(=O)c2c(ncn2C)n(C)c1=OCn1c(=O)c2c(ncn2C)n(C)c1=O
calcineurin inhibitor compound that inhibits or blocks the phosphatase activity of calcineurin ref1
cisplatin pharmaceutical drug, InChIKey LXZZYRPGZAFOLE-UHFFFAOYSA-L, CAS registry number 15663-27-1 ref1 ref2 Cl[Pt@SP1]([NH3])([NH3])ClCl[Pt@SP1]([NH3])([NH3])Cl
creatinine chemical compound, InChIKey DDRJAANPRJIHGJ-UHFFFAOYSA-N, CAS registry number 60-27-5 ref1 ref2 CN1CC(=O)NC1=NCN1CC(=O)NC1=N
diclofenac chemical compound, InChIKey DCOPUUMXTXDBNB-UHFFFAOYSA-N, CAS registry number 15307-86-5 ref1 ref2 C1=CC=C(C(=C1)CC(=O)O)NC2=C(C=CC=C2Cl)ClC1=CC=C(C(=C1)CC(=O)O)NC2=C(C=CC=C2Cl)Cl
dietary supplement Product intended to supplement the diet with vitamins, minerals, herbs, amino acids, or enzymes ref1
dimethyl sulfoxide DMSO organosulfur chemical compound used as a solvent, InChIKey IAZDPXIOMUYVGZ-UHFFFAOYSA-N, CAS registry number 67-68-5 ref1 ref2 CS(=O)CCS(=O)C
dopamine organic chemical that functions both as a hormone and a neurotransmitter, InChIKey VYFYYTLLBUKUHU-UHFFFAOYSA-N, CAS registry number 51-61-6 ref1 ref2 NCCC1=CC(O)=C(O)C=C1NCCC1=CC(O)=C(O)C=C1
endocrine disrupting chemicals EDCs chemicals that can interfere with endocrine or hormonal systems at certain doses ref1
ethyl-parathion chemical compound, InChIKey LCCNCVORNKJIRZ-UHFFFAOYSA-N, CAS registry number 56-38-2 ref1 ref2 CCOP(=S)(OCC)OC1=CC=C(C=C1)[N+](=O)[O-]CCOP(=S)(OCC)OC1=CC=C(C=C1)[N+](=O)[O-]
fenitrothion chemical compound, InChIKey ZNOLGFHPUIJIMJ-UHFFFAOYSA-N, CAS registry number 122-14-5 ref1 ref2 CC1=C(C=CC(=C1)OP(=S)(OC)OC)[N+](=O)[O-]CC1=C(C=CC(=C1)OP(=S)(OC)OC)[N+](=O)[O-]
flavonolignan class of chemical compounds, any lignan condensed with a 2-aryl-1-benzopyran skeleton and its substituted derivatives ref1
folpet chemical compound, InChIKey HKIOYBQGHSTUDB-UHFFFAOYSA-N, CAS registry number 133-07-3 ref1 ref2 C1=CC=C2C(=C1)C(=O)N(C2=O)SC(Cl)(Cl)ClC1=CC=C2C(=C1)C(=O)N(C2=O)SC(Cl)(Cl)Cl
immunosuppressant agent that suppresses immune function by one of several mechanisms of action (e.g. inhibiting DNA synthesis, inhibiting activation of T-cells, or inhibiting the activation of helper cells) ref1
indocyanine green chemical compound, InChIKey MOFVSTNWEDAEEK-UHFFFAOYSA-M, CAS registry number 3599-32-4 ref1 ref2 CC1(C(=[N+](C2=C1C3=CC=CC=C3C=C2)CCCCS(=O)(=O)[O-])/C=C/C=C/C=C/C=C/4\C(C5=C(N4CCCCS(=O)(=O)[O-])C=CC6=CC=CC=C65)(C)C)C.[Na+]CC1(C(=[N+](C2=C1C3=CC=CC=C3C=C2)CCCCS(=O)(=O)[O-])/C=C/C=C/C=C/C=C/4\C(C5=C(N4CCCCS(=O)(=O)[O-])C=CC6=CC=CC=C65)(C)C)C.[Na+]
methyl-parathion chemical compound, InChIKey RLBIQVVOMOPOHC-UHFFFAOYSA-N, CAS registry number 298-00-0 ref1 ref2 COP(=S)(OC)OC1=CC=C(C=C1)[N+](=O)[O-]COP(=S)(OC)OC1=CC=C(C=C1)[N+](=O)[O-]
milk thistle (Silybum marianum) species of plant of genus Silybum in family Asteraceae ref1
organophosphate pesticides
paraquat chemical compound, InChIKey INFDPOAKFNIJBF-UHFFFAOYSA-N, CAS registry number 4685-14-7 ref1 ref2 C[N+]1=CC=C(C=C1)C2=CC=[N+](C=C2)CC[N+]1=CC=C(C=C1)C2=CC=[N+](C=C2)C
pentachlorophenol chemical compound, InChIKey IZUPBVBPLAPZRR-UHFFFAOYSA-N, CAS registry number 87-86-5 ref1 ref2 C1(=C(C(=C(C(=C1Cl)Cl)Cl)Cl)Cl)OC1(=C(C(=C(C(=C1Cl)Cl)Cl)Cl)Cl)O
perfluorooctanesulfonic acid PFOS chemical compound, InChIKey YFSUTJLHUFNCNZ-UHFFFAOYSA-N, CAS registry number 1763-23-1 ref1 ref2 C(C(C(C(C(F)(F)S(=O)(=O)O)(F)F)(F)F)(F)F)(C(C(C(F)(F)F)(F)F)(F)F)(F)FC(C(C(C(C(F)(F)S(=O)(=O)O)(F)F)(F)F)(F)F)(C(C(C(F)(F)F)(F)F)(F)F)(F)F
perfluorooctanoic acid PFOA chemical compound, InChIKey SNGREZUHAYWORS-UHFFFAOYSA-N, CAS registry number 335-67-1 ref1 ref2 C(=O)(C(C(C(C(C(C(C(F)(F)F)(F)F)(F)F)(F)F)(F)F)(F)F)(F)F)OC(=O)(C(C(C(C(C(C(C(F)(F)F)(F)F)(F)F)(F)F)(F)F)(F)F)(F)F)O
pesticide Strictly, a substance intended to kill pests. In common usage, any substance used for controlling, preventing, or destroying animal, microbiological or plant pests. ref1 ref2
probenecid chemical compound, InChIKey DBABZHXKTCFAPX-UHFFFAOYSA-N, CAS registry number 57-66-9 ref1 ref2 CCCN(CCC)S(=O)(=O)C1=CC=C(C=C1)C(=O)OCCCN(CCC)S(=O)(=O)C1=CC=C(C=C1)C(=O)O
pyraclostrobin chemical compound, InChIKey HZRSNVGNWUDEFX-UHFFFAOYSA-N, CAS registry number 175013-18-0 ref1 ref2 COC(=O)N(C1=CC=CC=C1COC2=NN(C=C2)C3=CC=C(C=C3)Cl)OCCOC(=O)N(C1=CC=CC=C1COC2=NN(C=C2)C3=CC=C(C=C3)Cl)OC
quercetin polyphenol of the family of flavonoids, InChIKey REFJWTPEDVJJIY-UHFFFAOYSA-N, CAS registry number 117-39-5 ref1 ref2 C1=CC(=C(C=C1C2=C(C(=O)C3=C(C=C(C=C3O2)O)O)O)O)OC1=CC(=C(C=C1C2=C(C(=O)C3=C(C=C(C=C3O2)O)O)O)O)O
(R)-dinoseb type of a chemical entity, InChIKey OWZPCEFYPSAJFR-ZCFIWIBFSA-N ref1 CC[C@@H](C)C1=CC(=CC(=C1O)[N+](=O)[O-])[N+](=O)[O-]CC[C@@H](C)C1=CC(=CC(=C1O)[N+](=O)[O-])[N+](=O)[O-]
rifampicin pharmaceutical drug, InChIKey JQXXHWHPUNPDRT-WLSIYKJHSA-N, CAS registry number 13292-46-1 ref1 ref2 C[C@H]1/C=C/C=C(\C(=O)NC2=C(C(=C3C(=C2O)C(=C(C4=C3C(=O)[C@](O4)(O/C=C/[C@@H]([C@H]([C@H]([C@@H]([C@@H]([C@@H]([C@H]1O)C)O)C)OC(=O)C)C)OC)C)C)O)O)/C=N/N5CCN(CC5)C)/CC[C@H]1/C=C/C=C(\C(=O)NC2=C(C(=C3C(=C2O)C(=C(C4=C3C(=O)[C@](O4)(O/C=C/[C@@H]([C@H]([C@H]([C@@H]([C@@H]([C@@H]([C@H]1O)C)O)C)OC(=O)C)C)OC)C)C)O)O)/C=N/N5CCN(CC5)C)/C
(S)-dinoseb type of a chemical entity, InChIKey OWZPCEFYPSAJFR-LURJTMIESA-N ref1 CC[C@H](C)C1=CC(=CC(=C1O)[N+](=O)[O-])[N+](=O)[O-]CC[C@H](C)C1=CC(=CC(=C1O)[N+](=O)[O-])[N+](=O)[O-]
amiodarone chemical compound, InChIKey IYIKLHRQXLHMJQ-UHFFFAOYSA-N, CAS registry number 1951-25-3 ref1 CCCCC1=C(C2=CC=CC=C2O1)C(=O)C3=CC(=C(C(=C3)I)OCCN(CC)CC)ICCCCC1=C(C2=CC=CC=C2O1)C(=O)C3=CC(=C(C(=C3)I)OCCN(CC)CC)I
amiodarone hydrochloride type of a chemical entity, InChIKey ITPDYQOUSLNIHG-UHFFFAOYSA-N, CAS registry number 19774-82-4 ref1 Cl[H].CCCCc1oc2ccccc2c1C(=O)c1cc(I)c(OCCN(CC)CC)c(I)c1Cl[H].CCCCc1oc2ccccc2c1C(=O)c1cc(I)c(OCCN(CC)CC)c(I)c1
cefuroxime type of a chemical entity, InChIKey JFPVXVDWJQMJEE-IZRZKJBUSA-N, CAS registry number 55268-75-2 ref1 [H][C@]12SCC(COC(N)=O)=C(N1C(=O)[C@H]2NC(=O)\C(=N/OC)c3ccco3)C(O)=O[H][C@]12SCC(COC(N)=O)=C(N1C(=O)[C@H]2NC(=O)\C(=N/OC)c3ccco3)C(O)=O
chlorpyrifos type of a chemical entity, InChIKey SBPBAQFWLVIOKP-UHFFFAOYSA-N, CAS registry number 2921-88-2 ref1 CCOP(=S)(OCC)OC1=NC(=C(C=C1Cl)Cl)ClCCOP(=S)(OCC)OC1=NC(=C(C=C1Cl)Cl)Cl
diazinon type of a chemical entity, InChIKey FHIVAFMUCKRCQO-UHFFFAOYSA-N, CAS registry number 333-41-5 ref1 CCOP(=S)(OCC)OC1=NC(=NC(=C1)C)C(C)CCCOP(=S)(OCC)OC1=NC(=NC(=C1)C)C(C)C
dinoseb mixture ref1
endosulfan mixture, InChIKey RDYMFSUJUZBWLH-AZVNHNRSSA-N ref1 Cl[C@]12C(=C([C@]([C@@H]3COS(OC[C@@H]31)=O)(C2(Cl)Cl)Cl)Cl)ClCl[C@]12C(=C([C@]([C@@H]3COS(OC[C@@H]31)=O)(C2(Cl)Cl)Cl)Cl)Cl
ethylenebis(dithiocarbamate) type of a chemical entity, InChIKey AWYFNIZYMPNGAI-UHFFFAOYSA-L ref1 C(CNC(=S)[S-])NC(=S)[S-]C(CNC(=S)[S-])NC(=S)[S-]
iopanoic acid group of stereoisomers, InChIKey OIRFJRBSRORBCM-UHFFFAOYSA-N, CAS registry number 96-83-3 ref1 CCC(CC1=C(C(=C(C=C1I)I)N)I)C(=O)OCCC(CC1=C(C(=C(C=C1I)I)N)I)C(=O)O
lesinurad chemical compound, InChIKey FGQFOYHRJSUHMR-UHFFFAOYSA-N, CAS registry number 878672-00-5 ref1 C1CC1C2=CC=C(C3=CC=CC=C23)N4C(=NN=C4Br)SCC(=O)OC1CC1C2=CC=C(C3=CC=CC=C23)N4C(=NN=C4Br)SCC(=O)O
mancozeb mixture ref1
Mn²⁺ type of a chemical entity, InChIKey WAEMQWOKJMHJLA-UHFFFAOYSA-N ref1 [Mn+2][Mn+2]
monobutyl phthalate MBP type of a chemical entity, InChIKey YZBOVSFWWNVKRJ-UHFFFAOYSA-N, CAS registry number 131-70-4 ref1 CCCCOC(=O)c1ccccc1C(O)=OCCCCOC(=O)c1ccccc1C(O)=O
NH-3 chemical compound, InChIKey IXMROOKFPWGDGF-UHFFFAOYSA-N, CAS registry number 447415-26-1 ref1 CC1=CC(=CC(=C1CC2=CC(=C(C(=C2)C#CC3=CC=C(C=C3)[N+](=O)[O-])O)C(C)C)C)OCC(=O)OCC1=CC(=CC(=C1CC2=CC(=C(C(=C2)C#CC3=CC=C(C=C3)[N+](=O)[O-])O)C(C)C)C)OCC(=O)O
PBDE-99 type of a chemical entity, InChIKey WHPVYXDFIXRKLN-UHFFFAOYSA-N, CAS registry number 60348-60-9 ref1 C1=CC(=C(C=C1Br)Br)OC2=CC(=C(C=C2Br)Br)BrC1=CC(=C(C=C1Br)Br)OC2=CC(=C(C=C2Br)Br)Br
rotenone chemical compound, InChIKey JUVIOZPCNVVQFO-HBGVWJBISA-N, CAS registry number 83-79-4 ref1 CC(=C)[C@H]1CC2=C(O1)C=CC3=C2O[C@@H]4COC5=CC(=C(C=C5[C@@H]4C3=O)OC)OCCC(=C)[C@H]1CC2=C(O1)C=CC3=C2O[C@@H]4COC5=CC(=C(C=C5[C@@H]4C3=O)OC)OC
Silibinin mixture ref1
silychristin A chemical compound, InChIKey BMLIIPOXVWESJG-LMBCONBSSA-N, CAS registry number 33889-69-9 ref1 COC1=C(C=CC(=C1)[C@H]2[C@@H](C3=C(O2)C(=CC(=C3)[C@@H]4[C@H](C(=O)C5=C(C=C(C=C5O4)O)O)O)O)CO)OCOC1=C(C=CC(=C1)[C@H]2[C@@H](C3=C(O2)C(=CC(=C3)[C@@H]4[C@H](C(=O)C5=C(C=C(C=C5O4)O)O)O)O)CO)O
silymarin extract of the milk thistle (Silybum marianum) that contains a mixture of flavonolignans, including silibinin isomers, silychristin isomers, and others. ref1
staurosporine chemical compound, InChIKey HKSZLNNOFSGOKW-FYTWVXJKSA-O ref1 ref2 C[C@@]12[C@@H]([C@@H](C[C@@H](O1)N3C4=CC=CC=C4C5=C6C(=C7C8=CC=CC=C8N2C7=C53)CNC6=O)[NH2+]C)OCC[C@@]12[C@@H]([C@@H](C[C@@H](O1)N3C4=CC=CC=C4C5=C6C(=C7C8=CC=CC=C8N2C7=C53)CNC6=O)[NH2+]C)OC
sulfobromophthalein type of a chemical entity, InChIKey OHTXTCNTQJFRIG-UHFFFAOYSA-N, CAS registry number 297-83-6 ref1 Oc1ccc(cc1S(O)(=O)=O)C2(OC(=O)c3c(Br)c(Br)c(Br)c(Br)c23)c4ccc(O)c(c4)S(O)(=O)=OOc1ccc(cc1S(O)(=O)=O)C2(OC(=O)c3c(Br)c(Br)c(Br)c(Br)c23)c4ccc(O)c(c4)S(O)(=O)=O
sulfobromophthalein sodium type of a chemical entity, InChIKey CDTNUNQQEUGDSD-UHFFFAOYSA-L, CAS registry number 123359-42-2 ref1 [Na+].[Na+].[H]O[H].Oc1ccc(cc1S([O-])(=O)=O)C2(OC(=O)c3c(Br)c(Br)c(Br)c(Br)c23)c4ccc(O)c(c4)S([O-])(=O)=O[Na+].[Na+].[H]O[H].Oc1ccc(cc1S([O-])(=O)=O)C2(OC(=O)c3c(Br)c(Br)c(Br)c(Br)c23)c4ccc(O)c(c4)S([O-])(=O)=O
tacrolimus immunosuppressive Rx drug, InChIKey QJJXYPPXXYFBGM-LFZNUXCKSA-N, CAS registry number 104987-11-3 ref1 ref2 C[C@@H]1C[C@@H]([C@@H]2[C@H](C[C@H]([C@@](O2)(C(=O)C(=O)N3CCCC[C@H]3C(=O)O[C@@H]([C@@H]([C@H](CC(=O)[C@@H](/C=C(/C1)\C)CC=C)O)C)/C(=C/[C@@H]4CC[C@H]([C@@H](C4)OC)O)/C)O)C)OC)OCC[C@@H]1C[C@@H]([C@@H]2[C@H](C[C@H]([C@@](O2)(C(=O)C(=O)N3CCCC[C@H]3C(=O)O[C@@H]([C@@H]([C@H](CC(=O)[C@@H](/C=C(/C1)\C)CC=C)O)C)/C(=C/[C@@H]4CC[C@H]([C@@H](C4)OC)O)/C)O)C)OC)OC
triclosan antimicrobial agent, InChIKey XEFQLINVKFYRCS-UHFFFAOYSA-N, CAS registry number 3380-34-5 ref1 ref2 C1=CC(=C(C=C1Cl)O)OC2=C(C=C(C=C2)Cl)ClC1=CC(=C(C=C1Cl)O)OC2=C(C=C(C=C2)Cl)Cl
triiodothyronine T3 type of a chemical entity, InChIKey AUYYCJSJGJYCDS-LBPRGKRZSA-N ref1 N[C@@H](Cc1cc(I)c(Oc2ccc(O)c(I)c2)c(I)c1)C(O)=ON[C@@H](Cc1cc(I)c(Oc2ccc(O)c(I)c2)c(I)c1)C(O)=O
thyroxine T4 type of a chemical entity, InChIKey XUIIKFGFIJCVMT-LBPRGKRZSA-N ref1 N[C@@H](Cc1cc(I)c(Oc2cc(I)c(O)c(I)c2)c(I)c1)C(O)=ON[C@@H](Cc1cc(I)c(Oc2cc(I)c(O)c(I)c2)c(I)c1)C(O)=O
tetrabromobisphenol A TBBPA bisphenol, InChIKey VEORPZCZECFIRK-UHFFFAOYSA-N, CAS registry number 79-94-7 ref1 CC(C)(C1=CC(=C(C(=C1)Br)O)Br)C2=CC(=C(C(=C2)Br)O)BrCC(C)(C1=CC(=C(C(=C1)Br)O)Br)C2=CC(=C(C(=C2)Br)O)Br
verapamil hydrochloride chemical compound, InChIKey DOQPXTMNIUCOSY-UHFFFAOYSA-N, CAS registry number 152-11-4 ref1 ref2 CC(C)C(CCCN(C)CCC1=CC(=C(C=C1)OC)OC)(C#N)C2=CC(=C(C=C2)OC)OC.ClCC(C)C(CCCN(C)CCC1=CC(=C(C=C1)OC)OC)(C#N)C2=CC(=C(C=C2)OC)OC.Cl
xanthohumol type of a chemical entity, InChIKey ORXQGKIUCDPEAJ-YRNVUSSQSA-N, CAS registry number 6754-58-1 ref1 COc1cc(O)c(C\C=C(/C)C)c(O)c1C(=O)\C=C\c2ccc(O)cc2COc1cc(O)c(C\C=C(/C)C)c(O)c1C(=O)\C=C\c2ccc(O)cc2
Zn²⁺ type of a chemical entity, InChIKey PTFCDOFLOPIGGS-UHFFFAOYSA-N ref1 [Zn+2][Zn+2]
α-endosulfan type of a chemical entity, InChIKey RDYMFSUJUZBWLH-BEJSPLBDSA-N ref1 Cl[C@@]12C(=C([C@@]([C@@H]3CO[S@@](OC[C@@H]31)=O)(C2(Cl)Cl)Cl)Cl)ClCl[C@@]12C(=C([C@@]([C@@H]3CO[S@@](OC[C@@H]31)=O)(C2(Cl)Cl)Cl)Cl)Cl
β-endosulfan type of a chemical entity, InChIKey RDYMFSUJUZBWLH-LLXUDWAZSA-N ref1 Cl[C@]12C(=C([C@]([C@@H]3CO[S@](OC[C@@H]31)=O)(C2(Cl)Cl)Cl)Cl)ClCl[C@]12C(=C([C@]([C@@H]3CO[S@](OC[C@@H]31)=O)(C2(Cl)Cl)Cl)Cl)Cl

Toxicology in General

Term Abbreviation Definition
3 Rs Principle 3Rs Replacement, Reduction, and Refinement. Used in the context of performing more humane animal research.
Absorption, Distribution, Metabolism, and Excretion
synonyms: PK, TK
ADME Absorption, distribution, metabolism, and excretion of a substance (toxic or not) in a living organism, following exposure to this substance
Acute Kidney Injury Abrupt loss of kidney function that develops within 48 hours ref1
Alamar Blue assay Bioassay for ell viability, proliferation, and cytotoxicity ref1
Allan-Herndon-Dudley Syndrome AHDS A syndrome with neuromuscular involvement characterized by infantile hypotonia, muscular hypoplasia, spastic paraparesis with dystonic/athetoic movements, and severe cognitive deficiency. ref1 ref2
Apoptosis A regulated cell death mechanism characterized by distinctive morphologic changes in the nucleus and cytoplasm, including the endonucleolytic cleavage of genomic DNA, at regularly spaced, internucleosomal sites, i.e., DNA FRAGMENTATION. It is genetically programmed and serves as a balance to mitosis in regulating the size of animal tissues and in mediating pathologic processes associated with tumor growth. ref1 ref2
Apparent Permeability Papp A biochemical parameter representing the apparent permeability of a compound specifically between the compartments. ref1
Area Under the Curve AUC A statistical means of summarizing information from a series of measurements on one individual. It is frequently used in clinical pharmacology where the AUC from serum levels can be interpreted as the total uptake of whatever has been administered. As a plot of the concentration of a drug against time, after a single dose of medicine, producing a standard shape curve, it is a means of comparing the bioavailability of the same drug made by different companies. (From Winslade, Dictionary of Clinical Research, 1992) ref1
Bioassay Analytical method to determine concentration or potency of a substance by its effect on living cells or tissues ref1
Blood Brain Barrier BBB A tissue to protect the brain and spinal cord from both toxic and pathogenic agents in the blood. It is formed by extensive tight junctions between vascular epithelial cells, which are polarized into luminal (blood-facing) and abluminal (brain-facing) plasma membrane domains.
Benchmark Dose
see also: Benchmark Dose Modeling
BMD See Benchmark dose modeling
Benchmark Dose Modeling
see also: Benchmark Dose
BMD An approach to determine the toxicological limit values for human health, such as the acceptable daily intake (ADI), of all chemical substances (e.g., food) regardless of type or origin. BMD modeling (possibly in combination with PBK modeling) analyzes in conjunction with multiple test systems and organ systems, to study how exposure variation has on the outcome of an in vitro test system.
Blood-Cerebrospinal Fluid Barrier BCSFB Functional component of the vertebrate central nervous system ref1
Blood-to-Plasma Ratio BPR The ratio of the concentration of molecule in whole blood (i.e. contains both red blood cells and plasma) to the concentration of molecule in plasma, namely CB/CP. ref1
Brain-Derived Neurotrophic Factor BDNF Brain-derived neurotrophic factor (247 aa, ~28 kDa) is encoded by the human BDNF gene. This protein plays a role in both the development of the nervous system and neuronal survival. ref1 ref2
Caco-2 Cell line ref1
CD44 CD44 antigen (742 aa, ~82 kDa) is encoded by the human CD44 gene. This protein is involved in cell-cell adhesion and cell-matrix adhesion. ref1 ref2
Cell line Population of cells that originates from a primary culture, adapted to grow and divide under laboratory conditions ref1
CellTiter-Fluor assay The CellTiter-Fluor Cell Viability Assay measures the relative number of viable cells in a population. The assay is based on measurement of a conserved and constitutive protease activity within live cells and therefore serves as a biomarker of cell viability. The live-cell protease activity is restricted to intact viable cells and is measured using a fluorogenic, cell-permeant, peptide substrate (Gly-Phe-AFC). The substrate enters intact cells, where it is cleaved by the live-cell protease activity to generate a fluorescent signal proportional to the number of living cells. The live-cell protease becomes inactive upon loss of membrane integrity and leakage into the surrounding culture medium. (description adapted from vendor Promega) ref1
CellTiter-Glo assay
CFDA assay
CHO-K1 Chinese hamster ovary cells, subclone from parental CHO cell line that was initiated from an ovary biopsy of an adult Chinese hamster in 1957. ref1 ref2
Cholestasis Impairment of the bile flow caused by obstruction within the liver, or outside the liver in the bile duct system. ref1 ref2
Co-culture Techniques of culturing mixed cell types in vitro to allow their synergistic or antagonistic interactions ref1
Concentration-response relationship
Cytotoxicity It is the toxic or cell-death inducing property of a perturbagen. Known cytotoxic agents mediate cell death commonly by necrosis, apoptosis, or autophagy. Cytotoxicity can be detected by measuring various aspects of the death process: e.g. membrane permeability, ATP concentration, DNA fragmentation, etc. ref1 ref2
Deiodinase DIO Class of enzymes ref1
Developmental and Reproductive Toxicology DART
Developmental Neurotoxicity DNT
Dopaminergic neurons Neurons whose primary neurotransmitter is DOPAMINE. ref1 ref2
Dose-response relationship Relationship between the dose of an administered drug and the response of the organism to the drug ref1
Endocrine disruption
Endoplasmic Reticulum Stress ER stress Physiological or molecular disturbances that impair endoplasmic reticulum function ref1
Endothelial-Like Cells ELC
Endpoint The endpoint is a quantitive or qualitative interpretable standardized representation of a perturbation (a change from a defined reference state of a "closed" model system) that is measured by the bioassay. An endpoint consists of a series of data points, one for each perturbing agent (screened entity) tested the assay. ref1
Enzyme-Linked Immunosorbent Assay ELISA An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed. ref1 ref2
Fibrosis Formation of excess fibrous connective tissue in an organ or tissue in a reparative or reactive process ref1
Fraction Unbound in Plasma fup An unbound fraction parameter specifically for plasma. ref1
Gene Set Enrichment Analysis GSEA An inferential statistical data analysis that determines whether an a priori defined set of genes shows statistically significant, concordant differences between two biological states (e.g. phenotypes). ref1 ref2
H2DCFDA assay
Half Maximal Inhibitory Concentration IC50 The effective concentration of an inhibitor, which produces 50% of the maximum possible response for that inhibitor. ref1 ref2
HepG2 human hepatocellular carcinoma (HCC) cells (p53-wt). ref1 ref2
High Throughput Screening HTS
Human Brain Microvascular Endothelial Cells hBMEC Any microvascular endothelial cell that is part of a brain. ref1
(human) Embryonic Stem Cell (h)ESCs Pluripotent stem cells derived from the inner cell mass of a blastocyst (an early-stage pre-implantation embryo). These cells are characterised by their ability to differentiate into any cell type of the three germ layers: ectoderm, mesoderm, and endoderm. They are also known for their self-renewal capability, meaning they can proliferate indefinitely in culture while maintaining their pluripotency.
Human Neural Progenitor Test hNPT
In silico On a computer or via computer simulation software ref1
In vitro Outside a natural biological environment ref1
In vivo Studies in which the effects of various biological entities are tested on whole, living organisms ref1
induced Pluripotent Stem Cell iPSCs A type of pluripotent stem cell that can be generated directly from adult cells. The process of creating iPSCs involves reprogramming differentiated somatic cells (such as skin or blood cells) by introducing specific genes that reset the cells to a pluripotent state. This reprogramming allows iPSCs to develop into almost any cell type in the body, similarly to hESCs, making them highly valuable for regenerative medicine, disease modelling, and drug discovery.
Integrated Approaches to Testing and Assessment IATA An assessment method puts together information from multiple sources used for toxicity assessment of chemical substances in regulatory context. IATA is coined by the OECD, for which case studies are conducted to establish IATAs. ref1
Intrinsic Clearance CLint Intrinsic metabolic clearance is defined as ratio of maximum metabolism rate, Vmax, and the Michaelis-Menten constant, Km. ref1
Kidney Injury Molecule 1 KIM-1 Hepatitis A virus cellular receptor 1 (359 aa, ~39 kDa) is encoded by the human HAVCR1 gene. This protein is involved in the modulation of asthma and allergic reactions. ref1 ref2
KLF9 Protein-coding gene in the species Homo sapiens ref1
Lactate Dehydrogenase Assay LDH A quantitative measurement of the amount of lactate dehydrogenase present in a sample. ref1
Liquid Chromatography-Mass Spectrometry LC-MS Analytical chemistry technique with on-line coupling of liquid chromatography to mass spectrometry ref1
Lowest Observed Adverse Effect Level LOAEL The lowest exposure level of a chemical stressor evaluated in a toxicity test that shows harmful effects on a plant or animal.
LUHMES Cell line ref1
Markov Chain Monte Carlo MCMC Class of algorithms ref1
Maximum Plasma Concentration Cmax This is a measurement that quantifies the maximum concentration of an experimental substance or drug in the plasma or a target organ after dose administration. ref1
MDCK1 Cell line ref1
Microelectrode Array MEA Devices that contain multiple microelectrodes through which neural signals are obtained or delivered, essentially serving as neural interfaces that connect neurons to electronic circuitry ref1
Mitochondrial dysfunction Mitochondrial dysfunction is a subtype of dysfunctioning: A process that performs an abnormal and incomplete mitochondrial function. ref1
MO3.13 Human hybrid cell line that express phenotypic characteristics of primary oligodendrocytes ref1 ref2
Molecular docking Attempt to predict the structure of the intermolecular complex formed between two or more molecules ref1
Monocarboxylate Transporter 8 MCT8 Monocarboxylate transporter 8 (539 aa, ~60 kDa) is encoded by the human SLC16A2 gene. This protein is involved in cellular uptake of thyroxine (T4), triiodothyronine (T3), reverse triiodothyronine (rT3) and diiodothyronine. ref1 ref2
Monte Carlo Risk Assessment
see also: Monte Carlo Risk Assessment Calculation Model
MCRA See Monte Carlo Risk Assessment calculation model.
Monte Carlo Risk Assessment Calculation Model
see also: Monte Carlo Risk Assessment
A modeling technique for realistically possible calculation of the intake of risk substances by humans, for example via food, where the exposure can also be linked to the hazard, with which a risk assessment can be carried out.
Nephrotoxicity Toxicity that causes injury to the kidney or damages its function. This can include nephritis, renal failure, injury to kidney. ref1 ref2
Neural Progenitor Cells NPCs An undifferentiated cell derived from a neural stem cell, with a limited capacity to self-renew (Dibajnia and Morshead, 2013) and the ability to generate multiple types of lineage-restricted progenitors, contributing to the formation of neurons, astrocytes, and oligodendrocytes. ref1 ref2
Neurodegeneration Progressive loss of neural cells and tissue. ref1 ref2
Neurodevelopment The process whose specific outcome is the progression of nervous tissue over time, from its formation to its mature state ref1
Neuronal network activity
Neurotoxicity Toxicity that causes injury to the central or peripheral nervous system or damages its function. This can include stroke, multiple sclerosis, encephalopathy, dementia, Alzheimer's disease, amnesia, dyskinesia, Parkinson's disease, tremor, convulsions and Guillain Barre syndrome. ref1 ref2
New Approach Methodology
see also: Non-Animal Methodology
NAM A collection of various methods (e.g., high-throughput screening and high-content methods) in a wide set of contexts including in chemico and in vitro to improve knowledge over the toxicokinetic or toxicodynamic attributes of chemical substances, and in turn to improve the chemical safety assessment (see also Non-Animal Methodology). ref1 ref2
No Observed Adverse Effect Level NOAEL The highest exposure level of a chemical stressor evaluated in a toxicity test that shows no harmful effects on a plant or animal.
No Observed Effect Level NOEL The highest exposure level of a chemical stressor evaluated in a toxicity test that shows no effects on a plant or animal.
Non-Animal Methodology
see also: New Approach Methodology
A collection of methods to evaluate the potential for a chemical to cause systematic toxicity without using tests on animals (see also New Approach Methodology). ref1
Ordinary Differential Equation ODE Differential equation containing one or more functions of one independent variable and its derivatives ref1
Organ-on-a-chip Devices designed to recapitulate tissue or organ-level physiology and architect by combining MICROFLUIDICS; MICROFABRICATION; and 3D CELL CULTURE. Microphysiological systems mimic interconnections important in physiological or pathophysiological states of organ(s) and are often used for instance in HIGH THROUGHPUT SCREENING of drugs and factors important in disease modeling. ref1 ref2
Organic Anion-Transporting Polypeptide 1C1 OATP1C1 Protein-coding gene in the species Homo sapiens ref1
Organic Cation Transporter 2 OCT2 Organic cation transporter consisting of twelve transmembrane domains and expressed primarily in the kidney. It transports a wide range of metabolites, drugs, and neurotransmitters from the blood to the KIDNEY TUBULES, including DOPAMINE; SEROTONIN; CHOLINE; and CISPLATIN. ref1 ref2
Organoid Miniaturized and simplified version of an organ ref1
Oxidative stress A disturbance in the prooxidant-antioxidant balance in favor of the former, leading to potential damage. Indicators of oxidative stress include damaged DNA bases, protein oxidation products, and lipid peroxidation products (Sies, Oxidative Stress, 1991, pxv-xvi). ref1 ref2
P-glycoprotein P-gp A 170-kDa transmembrane glycoprotein from the superfamily of ATP-BINDING CASSETTE TRANSPORTERS. It serves as an ATP-dependent efflux pump for a variety of chemicals, including many ANTINEOPLASTIC AGENTS. Overexpression of this glycoprotein is associated with multidrug resistance (see DRUG RESISTANCE, MULTIPLE). ref1 ref2
Parkinson's Disease PD A progressive, degenerative neurologic disease characterized by a TREMOR that is maximal at rest, retropulsion (i.e. a tendency to fall backwards), rigidity, stooped posture, slowness of voluntary movements, and a masklike facial expression. Pathologic features include loss of melanin containing neurons in the substantia nigra and other pigmented nuclei of the brainstem. LEWY BODIES are present in the substantia nigra and locus coeruleus but may also be found in a related condition (LEWY BODY DISEASE, DIFFUSE) characterized by dementia in combination with varying degrees of parkinsonism. (Adams et al., Principles of Neurology, 6th ed, p1059, pp1067-75) ref1 ref2
pCHEMBL A value that allows a number of roughly comparable measures of half-maximal response concentration/potency/affinity to be compared on a negative logarithmic scale. ref1
Proximal Tubular-Like Cells PTL
Proximal tubule In mammals, the proximal tubule is a nephron tubule that connects Bowman's capsule to the loop of Henle. It has a brush border epithelial morphology[GO]. ref1 ref2
Quantitative In Vitro to In Vivo Extrapolation QIVIVE
Reactive Oxygen Species ROS Molecules or ions formed by the incomplete one-electron reduction of oxygen. They contribute to the microbicidal activity of phagocytes, regulation of signal transduction and gene expression, and the oxidative damage to biopolymers. ref1 ref2
Read Across A common approach in the risk assessment in order to examine structural similarities between the source and the target substances when there is a lack of information on their physical-chemical, toxicological properties, or environmental fate.
Reverse Transcription Quantitative PCR RT-qPCR A method in which amplification of a specific RNA/cDNA sequence by a reverse transcription polymerase chain reaction is monitored by detection of fluorescent probes or intercalating dyes that indicate the (absolute or relative) amount of product being produced in real time. ref1
RNA Sequencing RNA-seq High-throughput nucleotide sequencing techniques for RNA ref1
RPTEC/TERT1 Cell line ref1
SH-SY5Y Cell line ref1
SK-N-AS Cell line ref1
Substantia nigra A large cell mass extending forward, over the dorsal surface of the crus cerebri, from the rostral border of the pons into the subthalamic region. It is composed of a dorsal stratum of closely spaced pigmented cells, the pars compacta, and a larger ventral region of widely scattered cells, the pars reticulata. The pars compacta includes numerous cells that project forward to the striatum (caudate nucleus and putamen) and contain dopamine, which acts as the primary neurotransmitter at the synaptic endings. Other, apparently non-dopaminergic cells project to portions of the ventral nucleus of thalamus, the superior colliculus and reticular formation. The nigrostriatal projection is reciprocated by a striatonigral fiber system with multiple neurotransmitters, chief among which is gamma-aminobutyric acid (GABA). The substantia nigra is involved in the metabolic disturbances associated with Parkinson's disease and Huntington's disease. ref1 ref2
Synaptogenesis Formation of synapses between neurons in the nervous system ref1
TempO-Seq
Teratology Scientific field that studies the causes, mechanisms, and classes of congenital malformations in animals and plants. ref1
Thyroid Hormone TH Any of several closely related compounds that are produced by the thyroid gland and are active metabolically. ref1 ref2
Thyroid Hormone Receptor TR A nuclear receptor that specifically binds to and is activated by thyroid hormone. ref1
Tissue-blood partition coefficient
Toxicodynamics TD Study of interactions between the toxicant and a biological target ref1
Transcriptomics The analysis of transcriptomes, or a set of all the RNA molecules in a specific cell, tissue etc. ref1 ref2
Tubuloid

Risk Assessment

Term Abbreviation Definition
Alternative Safety Profiling Algorithm ASPA a risk assessment workflow to combine information required for Next Generation Risk Assessment (NGRA), coined by Animal-free Safety assessment of chemicals: Project cluster for Implementation of novel Strategies (ASPIS; joint collaboration ONTOX, PrecisionTox, RISK-HUNT3R) ref1
Benchmark Concentration BMC
Benchmark Dose Lower Confidence Limit BMDL
Bioactivity-Exposure Ratio BER
Dietary exposure Exposure to potentially harmful factors or substances in contaminated food or drinking water ref1
Environmental exposure The exposure to potentially harmful chemical, physical, or biological agents in the environment or to environmental factors that may include ionizing radiation, pathogenic organisms, or toxic chemicals. ref1
European Centre for the Validation of Alternative Methods ECVAM The EU Reference Laboratory for alternatives to animal testing, located in Ispra, Italy.
European Chemical Agency ECHA The European Chemicals Agency (ECHA) is responsible for, among other things, implementing European Union legislation on chemicals, such as REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) and CLP (Classification, Labelling and Packaging of substances and mixtures). ref1
European Food Safety Authority EFSA The European Food Safety Authority (EFSA) is responsible for providing scientific advice on risks related to food and animal feed throughout the entire supply chain in the European Union.
Exposome The measure of all the exposures of an individual from all sources, including environmental and occupational sources, in a lifetime and how those exposures relate to health. (from https://www.cdc.gov/niosh/topics/exposome/ on 06/06/2019) ref1 ref2
Exposure Contact between a toxicological agent and an outer boundary of an organism.
Exposure Assessment The process of assessing the magnitude, frequency and duration of exposure of a certain organism to a certain agent; OF the process of assessing the total external (or internal) exposure following one or more exposure/use scenarios that are described in terms of route, extent, frequency and duration of exposure, including exposure via more than one exposure route (aggregated exposure) and exposure to multiple chemicals (cumulative exposure).
Exposure scenario
External exposure
Hazard Assessment The process of assessing the intrinsic hazard a substance poses to human health and/or the environment. This provides information on potential human health effects such that a safe production and use of a chemical can be assured. Two types can be generally distinguished, i.e. with the purpose to classify the chemical to a certain category of toxicity (mostly qualitative assessment) or to derive an exposure limit, such as a health-based guidance value or product limit, that ensures safe use.
Hazard characterization
Hazard identification First step of risk assessment and management in systematically discovering, recognizing and documenting potential risks which may negatively impact the objectives of an organization or individual ref1
Human biomonitoring Measurement of the body burden of toxic chemical compounds, elements, or their metabolites, in biological substances ref1
Internal (Exposure) The amount of a chemical (or its active metabolites) present in human tissues or biological fluids over time, typically expressed as concentration-time profiles or dose metrics, resulting from external exposure after ADME/TK processes, and used as the input for the Toxicodynamics/AOP step.
Lowest Observed Effect Concentration LOEC
Mode of Action MoA A functional or anatomical change, resulting from the exposure of a living organism to a substance.
Monte Carlo simulation Broad class of computational algorithms using random sampling to obtain numerical results ref1
Next Generation Risk Assessment NGRA
Occupational exposure Exposure to a hazard in the workplace ref1
Pharmacovigilance The pharmacological science relating to the collection, detection, assessment, monitoring, and prevention of adverse effects with pharmaceutical product ref1
Point of Departure PoD
Population variability Differences in measurable biological values, characteristics, or traits, among individuals of a population or between population groups. ref1
Raw Primary Commodity RPC
Recommended Daily Intake RDI The amounts of various substances in the diet recommended by governmental guidelines as needed to sustain healthy life. ref1
The legislation of 'Registration, Evaluation, Authorization and Restriction of Chemicals' REACH Regulation (EC) No 1907/2006 of the European Parliament and of the Council concerning the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH). ref1
Risk Assessment The process of assessing human health and environmental risks in a historic, current or emerging exposure scenario for which a concern has risen.
Risk characterization A process to combine information for a substance about the hazard and exposure to determine how much risk there is.
Safety Assessment The overarching term for hazard and risk assessment in toxicology. For pharmaceuticals, this term is generally used for assessments of the safety of a certain application of pharmaceuticals, including the determination of the therapeutic window and risk/benefit analysis.
Therapeutic Drug Monitoring TDM Observing, recording, or detecting the effects of a chemical substance administered to an individual ref1
Weight of evidence
WHO Human Health Risk Assessment Toolkit: Chemical Hazards A publication that provides guidance on how to identify, gather, and use the information needed to assess chemical hazards, exposures, and related health risks. It was developed by the International Programme on Chemical Safety. ref1

Adverse Outcome Pathway

Term Abbreviation Definition
Adverse Outcome AO A specialised type of key event that is generally accepted as being of regulatory significance on the basis of correspondence to an established protection goal or equivalence to an apical endpoint in an accepted regulatory guideline toxicity test. ref1
Adverse Outcome Pathway AOP An AOP describes a sequence of events commencing with initial interaction(s) of a stressor with a biomolecule within an organism that causes a perturbation in its biology (i.e., molecular initiating event, MIE), which can progress through a dependent series of intermediate key events (KEs) and culminate in an adverse outcome (AO) considered relevant to risk assessment or regulatory decision-making. ref1
Apical Endpoint The outcomes that can be proven by observation or experiment after exposure to a chemical substances. ref1
Bioactivity The affinity and/or potency of a compound for a protein target.
Bradford-Hill criteria Principles for establishing a causal relationship ref1
Key Event KE A change in biological or physiological state that is both measurable and essential to the progression of a defined biological perturbation leading to a specific adverse outcome. ref1
Key Event Relationship KER A scientifically-based relationship that connects one key event to another, defines a causal and predictive relationship between the upstream and downstream event, and thereby facilitates inference or extrapolation of the state of the downstream key event from the known, measured, or predicted state of the upstream key event. ref1
Molecular Adverse Outcome Pathways mAOP Metapathway, similar to conventional AOPs, but connected events as e.g. WikiPathways pathways. Their function is to expand KEs with molecular pathways and allow analyses of omics data.
Molecular Initiating Event MIE A specialised type of key event that represents the initial point of chemical/stressor interaction at the molecular level within the organism that results in a perturbation that starts the AOP. ref1
Quantitative Adverse Outcome Pathway qAOP Quantitative AOPs, "Leiden approach" to connect events using differential equations.
Stressor
TXG-MAPr R package TXG-MAPr Statistical quantitative AOP approach using known coexpression changes in tissue toxicity.

Computer Infrastructure

Term Abbreviation Definition
Artificial Intelligence AI Field that develops and studies software enabling machines to exhibit intelligent behavior ref1
BioAssay Ontology BAO Ontology to annotate experiments in the field of the life sciences ref1
Cell Line Ontology CLO Ontology which describes anatomic origin and nature of eukaryotic cell lines ref1
Cell Ontology CL An ontology for cell types ref1
Cloud computing A computer infrastructure that provides access to data resources, analysis software, and computer power to conduct analyses specific to a use case or research community. ref1
Controlled vocabulary Standardized and organized sets of words and phrases for retrieval and disambiguation of information, distinguishing preferred terms from non-preferred terms ref1
CSV Tabular data represented as comma-separated values in a text file. ref1 ref2
Digital Object Identifier DOI ISO standard unique string identifier for a digital object ref1
Docker A service to create a virtual computer environment which can include the required software/tools to conduct a scientific work.
Dockerfile A file that includes the commands to build a Docker image.
Docker container The virtual environment that has been initiated to run based on its Docker image.
Docker image A representative file from which a docker container can be run and executed.
eNanoMapper Ontology ENM Application ontology for the nanomaterial safety assessment domain ref1
Exposure Ontology ExO Ontology for environmental and chemical exposure assessment ref1
Gene Ontology GO Ontology for describing the function of genes and gene products ref1
GitHub Hosting service for software projects using Git ref1
JSON Text-based open standard designed for human-readable data interchange ref1
Jupyter Notebook Web-based interactive computational environment for creating Jupyter notebook documents ref1
Kubernetes K8s A computer tool to orchesterize and manage Docker containers.
Machine learning Scientific study of algorithms and statistical models that computer systems use to perform tasks without explicit instructions ref1
Medical Subject Headings MeSH Controlled vocabulary for the purpose of indexing journal articles and books in the life sciences ref1
Model Context Protocol MCP Protocol for applications to provide context to LLMs ref1
NCBI Taxonomy NCBITaxon Curated classification and nomenclature for all of the organisms in the public sequence databases ref1
Ontology for Biomedical Investigations OBI An ontology that provides terms with precisely defined meanings to describe all aspects of how investigations in the biological and medical domains are conducted. ref1 ref2
Open source Practice of publishing digital resources publicly alongside their source code or source files ref1
OpenAPI Specification language for APIs ref1
ORCID Nonproprietary alphanumeric code to uniquely identify scientific and other academic authors ref1
Platform A computer environment where a set of software and tools are hosted and made available for the use of others over the internet. ref1
R Shiny Web-application on R -language ref1
Research Organization Registry ROR Community-led database of research organizations maintained by the ROR community ref1
Research Resource Identifier RRID Persistent and unique identifier for referencing a research resource ref1
REST API Architectural style for distributed hypermedia systems ref1
RO-Crate Method to aggregate and describing research data with associated metadata ref1
Scalability The property of a (cloud) infrastructure to be able to handle a growing amount of data and work related to it with additions. ref1
Secure Shell ssh A network protocol to access a network service remotely and securely.
SPARQL SPARQL (SPARQL Protocol and RDF Query Language) is a semantic query language for querying and manipulating data stored in Resource Description Framework (RDF) format. ref1 ref2
Strato An internet hosting service provider that supplies the servers where the virtual platform is built. ref1
Uberon Cross-species anatomy ontology for metazoan structures and development ref1
User Interface UI Means by which a user interacts with and controls a machine ref1
VHP server 1 The server hosted in Strato where the Docker containers used in the project are deployed.
VHP server 2 The server hosted in Strato where the Kubernetes structure is formed for orchestration of the Docker containers on VHP server 1.
VHP server 3 The server hosted in Strato that is used for experimentation, learning, and testing the work that is carried out on VHP servers 1 and 2.
Wikibase Collection of software (applications and libraries) for creating, managing and sharing structured data ref1
Wikidata Free multilingual online knowledge graph ref1

Tool & Service

Term Abbreviation Definition
Accessible One needs to know how data can be accessed, possibly including authentication and authorisation. ref1
Adapter A framework to fine-tune (large language) models by adding a small number of external parameters without the need of the entire (large language) model. ref1 ref2
Agent A software entity that uses a language model to autonomously perform specific tasks by interpreting prompts, interacting with data or systems, and generating results.
AOP-Builder
AOP-Suite
AOP-Wiki API
AOP-Wiki RDF
AOP-Wiki RDF Dashboard
AOP-Wiki Snorql UI
Application Programming Interface API A type of software interface that provides a way for two or more computer programs to communicate with each other. ref1
ArrayAnalysis
ASReview
Atomic Site of Metabolism SOM The atomic site in a molecule which is prone to metabolism by Cytochrome P450s (or other enzymes) as referred in the SOM Prediction tool.
AutoDock Vina Molecular Docking Software ref1
Backlog A prioritized list of all the tasks the team still wants to complete, used in the SCRUM method of working. Each added task is clearly described and preferably linked to an epic and a user story. At the beginning of a sprint, tasks will be selected from the backlog and assigned to team member to be completed before the end of that sprint.
bio.tools Essential scientific and technical information about software tools, databases and services for bioinformatics and the life sciences ref1
BioModels Database of biological reactions ref1
BioStudies Data repository from EMBL-EBI ref1
BioTransformer
BMDExpress-3
BridgeDb Framework to map identifiers between various biological databases ref1
BROWSE model
Catalog A systemic collection of items of the same type. ref1
CDK Depict Web application for generating chemical structure depictions from SMILES ref1
CellDesigner
Cellosaurus Online knowledge resource on cell lines ref1
Central Access Point CAP A website that provides toxicological risk assessors an easily accessible and structured analysis framework including tools developed within VHP4Safety. ref1
Chemical Information Tool Software used to transform and process chemical information items.
Chemistry Development Kit CDK Java library for chem- and bioinformatics ref1
Compound Wiki ID Identifier used by the VHP4Safety Compound Wiki (see compoundcloud.wikibase.cloud/wiki/Item:Q1 where Q1 is the Compound Wiki ID for aflatoxin B1).
CompTox Chemical database ref1
COPASI Biochemical System Simulator ref1
cpLogD
Cytoscape Open source software platform for visualizing molecular interaction networks and biological pathways ref1
Danish (Q)SAR Database
Data steward A data steward is an oversight or data governance role within an organization, and is responsible for ensuring the quality and fitness for purpose of the organization's data assets, including the metadata for those data assets. ref1
Data Management Plan DMP Plans to serve to address the what, how, who, and where of data management by formally outlining the roles, responsibilities, and activities for managing data during and after research in alignment with FAIR principles. ref1
Data modeling DMP The process of discovering, analyzing, and scoping data requirements, and then representing and communicating these data requirements in a precise form called the data model. This process is iterative and may include a conceptual, logical, and physical model. ref1
Data stewardship The work performed by a data steward.
DECIMER Open source chemical OCR tool ref1
Definition of Done DoD A shared understanding among the team of when a task is considered as 'done'. It ensures work is completed to a certain standard before it is accepted. This might include specific documentation, review by another team member or discussion during the Sprint Review.
ELIXIR TeSS
Embase Database ref1
Endocrine Disruptome
Epic A long-term goal or general feature of the final product. Epics are broken down into user stories, whereas user stories are broken down into tasks. By completing tasks in each sprint, the epic will gradually be reached.
Europe PMC Database of biomedical research ref1
Explainability The ability to describe the internal logic and mechanics of a model, such as Large Language Models and machine learning systems, to understand the way the model is trained and how predictions and answers are generated by the model. ref1
FAIRDOMHub
Fairspace
Farmacotherapeutisch Kompas
Findable Metadata and data should be easy to find for both humans and computers. Machine-readable metadata are essential for automatic discovery of datasets and services. ref1
Findable, Accessible, Interoperable, Reusable FAIR The FAIR principles emphasise machine-actionability (i.e., the capacity of computational systems to find, access, interoperate, and reuse data with none or minimal human intervention) because humans increasingly rely on computational support to deal with data as a result of the increase in volume, complexity, and creation speed of data. ref1
Fine-Tuning The process of training a pre-existing language model on a smaller, domain-specific dataset to improve its performance on specific tasks or for specific industries.
Flame
Gaussian plume drift model
General Tools Support software tools that can be used at several stages of a workflow.
Google Scholar Academic search service by Google ref1
Identifier The unique identifier for an administered item within a registration authority. ref1
Incident Postmortem A framework for learning from incidents and turning problems into progress by bringing people together to discuss the details of the incident to explore why it happened, its impact, the actions that can be taken to mitigate and resolve it, and the actions to prevent it happen again. ref1
Interability The ability to explain or to present a model, such as Large Language Models and machine learning systems in understandable terms to a human. ref1
Hackathon An event in which computer programmers collaborate intensively with one another and sometimes with people in other specialties over a relatively short period of time to create code usually for a new software product or service. ref1
Human-Readable Data A data or dataset that is in a format that can be naturally read by humans. It usually contrasts with machine-readable data. ref1
In vitro in vivo extrapolation IVIVE A method to conduct the qualitative or quantitative transposition of experimental results or observations made in vitro to predict phenomena in vivo, biological organisms. ref1
Interoperable To speed up discovery and uncover new insights, research data should be easily combined with other datasets, applications and workflows by humans as well as computer systems. ref1
JRC Data Catalogue
Knowledge Graphs
see also: Resource Description Framework
KGs An organized and graphical representation of real world obejcts and their relationships, represented mostly as nodes and edges, respectively to store data entities and their interrelations. See also Resource Description Framework. ref1 ref2
Large Language Model LLM A large language model is a computational model capable of language generation or other natural language processing tasks. ref1
Llemy
Machine-Readable Data A data or dataset that is in a format that can be read by a computer. It usually contrasts with human-readable data. ref1
Mathematical Markup Language MathML An Extensible Markup Language (XML) application to encode mathematical notations on the Web to capture their structure and content for their use and re-use. ref1
MCT8 Docking for MIE Discovery
MEDLINE Biomedical bibliographical database ref1
Metadata The data that provide information about one or more aspects of the data that is used to summarize basic information about data that can make tracking and working with specific data easier.
MINERVA
Model A simplified (generally mathematical) representation of a real system (e.g. of system: an organism, an organ, a cell, etc.)
Module [Software Component]An individual component (software, dataset or in vitro method description) that is hosted, or linked to in the VHP4Safety platform. ref1
Molecular AOP Analyser
Molecular AOP Builder
Multimodal Model A model capable of processing and generating responses from multiple types of data, such as text, images, and audio.
Natural Language Processing NLP A multidisciplinary scientific field that focuses on the interaction between computers and human (natural) languages, enabling machines to understand, interpret, and generate human language in a meaningful way. ref1 ref2
NFDI Terminology Service
NIH Dietary Supplement Label Database DSLD Database by the USA NIH ref1
OECD QSAR Toolbox
OECD QSAR Toolbox AI Assistant O-QT
Ontology A formal specification of the conceptualization of a set of phenomena naming and defining the elements of the set along with describing relations between the concepts, data, and entities; a way of showing the properties of a subject area and how they are related, by defining a set of concepts and categories that represent the subject. ref1 ref2
ONTOX Physiological Maps
OP PBK Model
Open Data A (collection of) data that can be used, studied, and modified without restriction, and which can be copied and redistributed in modified or unmodified form either without restriction, or with restrictions only to ensure that further recipients can also do these things. ref1
Open Parser for Systematic IUPAC Nomenclature OPSIN IUPAC name to structure convertor ref1
PathVisio Software for pathway editing and visualisation ref1
PeerTube Decentralized video hosting network, based on free software ref1
Pharmacokinetics
synonyms: ADME
PK see ADME (these terms are equivalent)
PhysB
Physiologically based biokinetic model
synonyms: PBPK
PBBK See PBPK model (these terms are equivalent)
Physiologically based kinetic model
synonyms: PBPK
PBK model See PBPK model (these terms are equivalent)
Physiologically based pharmacokinetic model
synonyms: PBBK, PBK model, PBTK
PBPK Mechanistic representation of ADME processes for a chemical in a living organism, based on physiological and chemical properties
Physiologically based toxicokinetic model
synonyms: PBPK
PBTK See PBPK model (these terms are equivalent)
PROAST
Product Owner A key role in SCRUM method for people who have a clear view of the long term goals of the project and the expertise of the team members. People with this role review the epics and user stories and prioritize the tasks in the backlog.
Prompt An input provided to a model to guide its output or action. Prompts can take various forms, such as text, images, audio, or structured data, depending on the capabilities of the model.
Prompt Engineering The process of designing and refining prompts to achieve desired outputs from a model, often used to maximize performance in specific tasks.
Proteochemometric PCM Mathematical models that can be used to predict the biological properties (mainly bioactivity) of compounds on proteins from the knowledge of their (chemical) structure.
PubMed Online database with abstracts of medical articles, hosted by US National Library of Medicine ref1
qAOP-App
QSPRpred
Quantitative Structure Activity Relationships QSAR Mathematical models that can be used to predict the physicochemical, biological and environmental fate properties of compounds from the knowledge of their chemical structure.
R-ODAF
Reactome Database of biological pathways ref1
Research Object Builder for Open Toxicology ROBOT
Research Output Management Plan ROMP Descriprion of the process of organising and documenting the diverse range of outputs generated during the research lifecycle. ref1
Research Software Directory
Resource Description Framework
see also: Knowledge Graphs
RDF A globally-accepted framework for data and knowledge representation that is intended to be read and interpreted by machines. ref1
Retrieval-Augmented Generation RAG A technique that combines retrieval systems (e.g., search engines or databases) with generation models like LLMs. The retrieval system provides relevant context or data, which the generation model then uses to create accurate and context-aware responses.
Reusable Research data should be ready for future research and future processing, making it self-evident that findings can be replicated and that new research effectively builds on already acquired, previous results. ref1
Scopus Online bibliographic database ref1
SCRUM An agile way of working as a development team that uses time-boxed iterations called sprints to focus on fully executing smaller increments of a larger product. It includes clear bite-sized tasks, regular discussions and collaborative review. It tackles issues such as vague long term goals, poor teamwork and inefficient timespending.
SCRUM Board The documentation of the tasks in the backlog, tasks in the current sprint, the user stories, the epics and the completed tasks when working in SCRUM. Usually shared and edited through GitHub Projects, Notion or similar tools.
SCRUM Master A person with the role in the SCRUM method who ensures the team follows the scrum practices and that the backlog, sprint, user stories and epics are clear.
Sprint A fixed time-box, usually 1-4 weeks, used in the SCRUM method of working. Per sprint, each team member works on selected tasks which they can (likely) finish within the sprint. Each sprint has meetings to plan the sprint, review the finished tasks and reflect to improve productivity.
Sprint Planning A meeting at the beginning of each sprint where the team selects tasks from the backlog to work on during that sprint. The team will also assign members to each task and discuss how they plan on completing them.
Sprint Review A meeting at the end of a sprint where the team presents their work and discuss any issues. The goal is to review the completed tasks and adapt the backlog accordingly. This meeting can be combined with the Sprint Retrospective.
Sprint Retrospective A meeting after the Sprint Review where the team reflects on the process of sprint that was reviewed. It focuses on the aspects of the last sprint that went well or bad, and how the team can improve their work in the next sprint.
Sysrev Ortec's literature reviewer support and curation documentationn storage system.
Standardization A process of developing, implementing, and maintaining technical standards to ensure consistency, uniformity, and compatibility across products, processes, or services.
Taxila.nl
TDM monographs
Technology Readiness Levels TRL TRLs are a method for estimating the maturity of technologies during the acquisition phase of a program. ref1
Template A thing that is used as a model for producing other similar examples. ref1
Token The basic unit of text processed by a language model, which can be a word, part of a word, or even a single character, depending on the model’s tokenizer.
Toxicokinetics
synonyms: ADME
TK see ADME (these terms are equivalent, although TK is used exclusively for toxic substances)
ToxTemp Template standard to report toxicity test methods ref1
ToxTempAssistant
User Story A simple, clear description of a desired feature or functionality from the perspective of the end user. Typically follows the format: 'As as [user], I want [feature], so that [benefit].'. Each task in the backlog should be contributing to as user story, each user story should be contributing to an epic.
User experience UX The experience a user would go through when interacting with a company, its services, and its products. ref1
VEGA QSAR
VHP4Safety Compound Wiki
VHP4Safety Glossary
Web Ontology Language OWL RDF standard for making ontologies machine readable.
Widget A small software application that is designed to provide a specific piece of information (such as news, weather, or traffic updates) or a specific function (such as taking notes or controlling another application) on demand. ref1
WikiPathways Database of biological pathways ref1
WikiPathways AOP Portal
Workflow An orchestrated and repeatable multi-step process to coordinate multiple tasks and their data dependencies. ref1
xploreaop
Zenodo Research data repository ref1

Project

Term Abbreviation Definition
Research Line RL Formal structure within a project to reach some goal.
Research Line 1 RL1 Building the Virtual Human Platform.
Research Line 2 RL2 Feeding the Virtual Human Platform.
Research Line 3 RL3 Implementing the Virtual Human Platform.
Stakeholder A person or a group of people who hold(s) a stake and/or can influence decision-making on a specific issue.
Task Force TF Cross work package effort to reach some goal.
Work Package WP Formal structure within a project to reach some goal.
Work Package 1.1 WP1.1 Building the ICT infrastructure for the VHP: objectives to develop the technical infrastructure, setting up a predictive platform, developing analysis workflows, making services and data available and interoperable.
Work Package 1.2 WP1.2 In silico toxicokinetics: objectives to define parameters required for PBPK modelling, developing PBK models and providing guidance for in vitro to in vivo extrapolations.
Work Package 1.3 WP1.3 Computational toxicodynamics: objectives to develop QSAR and MIE prediction models, develop qAOPs, testing the platform and generating safety estimates.
Work Package 2.1 WP2.1 In vitro models to provide toxicokinetics & toxicodynamics parameters: objectives to verify in vitro models for ADME and local toxicity, obtaining parameters for PBK modelling, test chemicals on iPSC models.
Work Package 2.2 WP2.2 Disease state - Case study chronic kidney disease: objectives to identify critical physiological pathways, develop AOP networks, test toxicity of selected drugs, and assess the safety of selected drugs.
Work Package 2.3 WP2.3 Life course exposure - Case study neurodegenerative disease and life course exposure to chemicals: objectives to identify critical physiological pathways, model life time exposure, develop AOP networks, test toxicity and assess the safety of selected chemicals.
Work Package 2.4 WP2.4 Age and gender specific safety - Case study Thyroid mediated developmental neurotoxicity: objectives to collect mechanistic physiological data, determine critical pathways, establish quantitative AOP network, identify gender-specific sentitivities and compounds that discriminate, and assess the safety of compound exposure.
Work Package 3.1 WP3.1 Technology Assessment of VHP: objectives to perform technology assessment, study and analyse the initiation, development and implementation of VHP, and specify performance criteria.
Work Package 3.2 WP3.2 Acceptance of VHP for safety assessment: objectives to position the VHP in the transition to animal-free safety assessment, raise awareness, investigate uncertainties and acceptance of safety assessments.
Work Package 3.3 WP3.3 Training and Education: objectives to promote collaboration, facilitate transferability of methods and models, implementing new teaching modules, promote capacity building and awareness of stakeholders, improve skills regarding risk communication.
Work Package 4 WP4 Project Coordination, Impact and Data Management: objectives to ensure that project objectives are achieved, deliverables are completed, manage overall knowledge utilisation, and provide effective and sustainable data management.

Organizations

Term Abbreviation Definition
Amsterdam University Medical Center Amsterdam UMC University hospitals cooperation in Amsterdam, Netherlands ref1
Bayer German multinational pharmaceutical, chemical, and agricultural biotechnology company ref1
Brunel University London University in London, UK ref1
Certara Company in St Louis, United States ref1
Charles River Laboratories Major US biomedical company ref1
Cosmetics Europe Organization in Brussels, Belgium ref1
DTU National Food Institute
Dutch Burns Foundation
Dutch Kidney Foundation Kidney research funding body based in Bussum, Netherlands ref1
Dutch Research Council NWO National research council of the Netherlands ref1
ELIXIR European life-sciences infrastructure ref1
Erasmus MC Hospital in Rotterdam, Netherlands ref1
European Commission EC Executive branch of the European Union ref1
European Medicines Agency EMA An agency of the European Union (EU) in charge of the evaluation and supervision of pharmaceutical products. ref1
College ter Beoordeling van Geneesmiddelen CBG Medicines Evaluation Board. The Dutch authority that evaluates and regulates medicines for human and veterinary use. ref1
nan ZIN
College voor de toelating van gewasbeschermingsmiddelen en biociden CTBG Dutch Board for the Authorisation of Plant Protection Products and Biocides. ref1
European Centre for Ecotoxicology and Toxicology of Chemicals ECTOC The European Centre for Ecotoxicology and Toxicology of Chemicals (ECETOC) is a scientific, non-profit, non-commercial and non-governmental association. Established in 1978, ECETOC's main objective is to identify, evaluate, and through such knowledge help industry to minimise any potentially adverse effects on human health and the environment that may arise from the manufacture and use of chemicals, biomaterials and pharmaceuticals. ref1
Institute for Risk Assessment Sciences IRAS Universiteit Utrecht ref1
Joint Research Centre JRC European Commission's science and knowledge service ref1
KWR Water Research Institute
Lakefront Biotherapeutics
Leiden University Public university in the Netherlands ref1
Maastricht University UM Public university in Maastricht ref1
Ministry of Agriculture, Nature and Food Quality LNV Agriculture ministry of Netherlands ref1
National Institute for Public Health and the Environment RIVM Dutch research institute ref1
National Institutes of Health NIH US government medical research agency ref1
National Research Data Infrastructure NFDI ref1
Organisation for Economic Co-operation and Development OECD Intergovernmental economic organization ref1
ORTEC
Shell British multinational oil and gas company ref1
Statistics Netherlands CBS Netherlands' principal government institution in charge of statistics and census data ref1
Stichting Proefdiervrij Organization ref1
TNO Dutch organisation ref1
Unilever British multinational consumer goods company ref1
University Medical Center Utrecht UMC Utrecht Academic hospital in Utrecht, Netherlands ref1
University of Applied Sciences Utrecht HU University of applied sciences in Utrecht, the Netherlands ref1
University of Konstanz University in Konstanz, Germany ref1
Utrecht University UU University in the Netherlands ref1
Vrije Universiteit Amsterdam VU University in Amsterdam, Netherlands ref1
Wageningen University & Research WUR University in the Netherlands ref1
World Health Organization WHO United Nations agency concerned with international public health ref1

For More Information on VHP4Safety

Please see the links below for various elements of the VHP4Safety Project.

References

  1. Michie, S., West, R. & Hastings, J. Creating ontological definitions for use in science. Qeios (2022). DOI: 10.32388/YGIF9B.2.

Funding

VHP4Safety – the Virtual Human Platform for safety assessment project NWA 1292.19.272 is part of the NWA research program ‘Research along Routes by Consortia (ORC)’, which is funded by the Netherlands Organization for Scientific Research (NWO). The project started on June 1, 2021 with a budget of over 10 million Euros and will last for the duration of 5 years.