| AOP:41 | Sustained AhR Activation leading to Rodent Liver Tumours | Cancer; Gastrointestinal system disease | Under Review | Rattus sp. ABTC 42503, Mus sp. 2000082 | 0.2 | KE:139 | N/A, Hepatotoxicity, Hepatopathy, including a constellation of observable effects |
| AOP:64 | Glucocorticoid Receptor (GR) Mediated Adult Leydig Cell Dysfunction Leading to Decreased Male Fertility | Reproductive system disease | - | Rattus norvegicus | 0.14 | KE:496 | Increased apoptosis, decreased fetal/adult Leydig Cells |
| AOP:122 | Prolyl hydroxylase inhibition leading to reproductive dysfunction via increased HIF1 heterodimer formation | Unclassified | - | Pimephales promelas | 0.1 | KE:800 | Decreased, Aromatase (Cyp19a1) mRNA |
| AOP:123 | Unknown MIE leading to reproductive dysfunction via increased HIF-1alpha transcription | Unclassified | - | Pimephales promelas | 0.09 | KE:800 | Decreased, Aromatase (Cyp19a1) mRNA |
| AOP:190 | Type II iodothyronine deiodinase (DIO2) inhibition leading to altered amphibian metamorphosis | Unclassified | - | African clawed frog | 0.17 | KE:1829 | Altered, Thyroid hormone-dependent gene expression |
| AOP:191 | Type III iodotyrosine deiodinase (DIO3) inhibition leading to altered amphibian metamorphosis | Unclassified | - | African clawed frog | 0.5 | KE:1154 | Increased, Triiodothyronine (T3) in tissues |
| KE:1829 | Altered, Thyroid hormone-dependent gene expression |
| AOP:207 | NADPH oxidase and P38 MAPK activation leading to reproductive failure in Caenorhabditis elegans | Reproductive system disease | - | Caenorhabditis elegans | 0.12 | KE:1262 | Apoptosis |
| AOP:212 | Histone deacetylase inhibition leading to testicular atrophy | Reproductive system disease | WPHA/WNT Endorsed | Rat, Human, Mouse | 0.17 | KE:1262 | Apoptosis |
| AOP:220 | Cyp2E1 Activation Leading to Liver Cancer | Cancer; Gastrointestinal system disease | WPHA/WNT Endorsed | Rodents, Homo sapiens | 0.2 | KE:1393 | Hepatocytotoxicity |
| AOP:232 | NFE2/Nrf2 repression to steatosis | Gastrointestinal system disease; Inherited metabolic disorder | - | | 0.12 | KE:1419 | Reduced, FXR activity |
| AOP:286 | Mitochondrial complex III antagonism leading to growth inhibition (1) | Unclassified | - | Lemna minor, Daphnia magna, Danio rerio | 0.25 | KE:1821 | Decrease, Cell proliferation |
| AOP:287 | Mitochondrial complex III antagonism leading to growth inhibition (2) | Unclassified | - | Lemna minor, Daphnia magna, Danio rerio | 0.25 | KE:1825 | Increase, Cell death |
| AOP:288 | Inhibition of 17α-hydrolase/C 10,20-lyase (Cyp17A1) activity leads to birth reproductive defects (cryptorchidism) in male (mammals) | Endocrine system disease | - | Human, Rat | 0.12 | KE:1614 | Decrease, androgen receptor activation |
| AOP:290 | Mitochondrial ATP synthase antagonism leading to growth inhibition (1) | Unclassified | - | Daphnia magna | 0.25 | KE:1821 | Decrease, Cell proliferation |
| AOP:291 | Mitochondrial ATP synthase antagonism leading to growth inhibition (2) | Unclassified | - | Daphnia magna | 0.25 | KE:1825 | Increase, Cell death |
| AOP:305 | 5α-reductase inhibition leading to short anogenital distance (AGD) in male (mammalian) offspring | Unclassified | Under Development | Rat, Human, Mouse | 0.4 | KE:286 | Altered, Transcription of genes by the androgen receptor |
| KE:1614 | Decrease, androgen receptor activation |
| AOP:322 | Alkylation of DNA leading to reduced sperm count | Reproductive system disease | - | | 0.2 | KE:1365 | Increase, Apoptosis |
| AOP:330 | Excessive reactive oxygen species production leading to mortality (4) | Unclassified | - | Daphnia magna | 0.2 | KE:1365 | Increase, Apoptosis |
| AOP:331 | Excessive reactive oxygen species leading to growth inhibition via oxidative DNA damage and reduced cell proliferation | Unclassified | - | Daphnia magna, Daphnia middendorffiana, Daphnia pulex, Daphnia pulicaria, Daphnia parvula | 0.17 | KE:1821 | Decrease, Cell proliferation |
| AOP:332 | Excessive reactive oxygen species leading to growth inhibition via lipid peroxidation and reduced cell proliferation | Unclassified | - | | 0.2 | KE:1821 | Decrease, Cell proliferation |
| AOP:333 | Excessive reactive oxygen species leading to growth inhibition via uncoupling of oxidative phosphorylation | Unclassified | - | | 0.4 | KE:1821 | Decrease, Cell proliferation |
| KE:1446 | Decrease, Coupling of oxidative phosphorylation |
| AOP:362 | Immune mediated hepatitis | Gastrointestinal system disease; Immune system disease | - | Homo sapiens, Rat | 0.12 | KE:1817 | Apoptotic cell death |
| AOP:368 | Cytochrome oxidase inhibition leading to increased nasal lesions | Unclassified | - | Rodents, Human | 0.33 | KE:1825 | Increase, Cell death |
| AOP:388 | Deposition of ionising energy leading to population decline via programmed cell death | Reproductive system disease | - | Lemna minor | 0.2 | KE:1864 | Increase, Programmed cell death |
| AOP:398 | Decreased ALDH1A (RALDH) activity leading to decreased fertility via disrupted meiotic initiation of fetal oogonia | Reproductive system disease | Under Development | Mouse, Rat, Human | 0.17 | KE:1881 | Decreased, all-trans retinoic acid (atRA) concentration |
| AOP:399 | Inhibition of Fyna leading to increased mortality via decreased eye size (Microphthalmos) | Unclassified | - | Zebrafish | 0.12 | KE:1821 | Decrease, Cell proliferation |
| AOP:410 | GSK3beta inactivation leading to increased mortality via defects in developing inner ear | Unclassified | - | Zebrafish | 0.1 | KE:1825 | Increase, Cell death |
| AOP:418 | Aryl hydrocarbon receptor activation leading to impaired lung function through AHR-ARNT toxicity pathway | Respiratory system disease | - | | 0.2 | KE:1825 | Increase, Cell death |
| AOP:419 | Aryl hydrocarbon receptor activation leading to impaired lung function through P53 toxicity pathway | Respiratory system disease | - | | 0.5 | KE:1923 | Altered gene expression, P53 dependent apoptosis pathway |
| KE:1262 | Apoptosis |
| AOP:436 | Inhibition of RALDH2 causes reduced all-trans retinoic acid levels, leading to transposition of the great arteries | Cardiovascular system disease | - | Chicken, Mouse, Vertebrates | 0.2 | KE:1881 | Decreased, all-trans retinoic acid (atRA) concentration |
| AOP:439 | Activation of the AhR leading to metastatic breast cancer | Thoracic disease; Cancer | Under Development | Humans, Mice | 0.11 | KE:1262 | Apoptosis |
| AOP:441 | Ionizing radiation-induced DNA damage leads to microcephaly via apoptosis and premature cell differentiation | Congenital nervous system abnormality; Nervous system disease | - | Homo sapiens, Mus musculus musculus, Rattus norvegicus | 0.29 | KE:1974 | Activation of Tumor Protein 53 |
| KE:1262 | Apoptosis |
| AOP:443 | DNA damage and mutations leading to Metastatic Breast Cancer | Thoracic disease; Cancer | Under Development | Human and other cells in culture, Human, Mice, Rat, Canine heartworm nematode, Yeast | 0.1 | KE:112 | Antagonism, Estrogen receptor |
| AOP:444 | Ionizing radiation leads to reduced reproduction in Eisenia fetida via reduced spermatogenesis and cocoon hatchability | Unclassified | - | | 0.11 | KE:1365 | Increase, Apoptosis |
| AOP:446 | PM-related Adverse outcome pathway frameworks on various systems | Respiratory system disease | - | | 0.05 | KE:1262 | Apoptosis |
| AOP:447 | Kidney failure induced by inhibition of mitochondrial electron transfer chain through apoptosis, inflammation and oxidative stress pathways | Urinary system disease | - | | 0.08 | KE:1365 | Increase, Apoptosis |
| AOP:452 | Adverse outcome pathway of PM-induced respiratory toxicity | Respiratory system disease | - | | 0.09 | KE:1262 | Apoptosis |
| AOP:460 | Antagonism of Smoothened receptor leading to orofacial clefting | Unclassified | Under Development | Mouse | 0.33 | KE:1821 | Decrease, Cell proliferation |
| KE:2043 | Decrease, Sonic Hedgehog second messenger production |
| KE:1262 | Apoptosis |
| AOP:463 | The AOP framwork on silica nanopariticles induced hepatoxicity | Gastrointestinal system disease | - | | 0.09 | KE:1262 | Apoptosis |
| AOP:464 | Calcium overload in dopaminergic neurons of the substantia nigra leading to parkinsonian motor deficits | Nervous system disease | - | | 0.05 | KE:1825 | Increase, Cell death |
| AOP:468 | Binding of SARS-CoV-2 to ACE2 leads to hyperinflammation (via cell death) | Unclassified | - | | 0.12 | KE:1825 | Increase, Cell death |
| AOP:472 | DNA adduct formation leading to kidney failure | Urinary system disease | - | | 0.11 | KE:1825 | Increase, Cell death |
| AOP:482 | Deposition of energy leading to occurrence of bone loss | Musculoskeletal system disease | Under Review | Human, Mouse, Rat, Rhesus monkeys | 0.14 | KE:1825 | Increase, Cell death |
| AOP:491 | Decrease, GLI1/2 target gene expression leads to orofacial clefting | Unclassified | Under Development | Mouse | 0.5 | KE:1821 | Decrease, Cell proliferation |
| KE:2043 | Decrease, Sonic Hedgehog second messenger production |
| KE:1262 | Apoptosis |
| AOP:495 | Androgen receptor activation leading to prostate cancer | Reproductive system disease; Cancer | - | | 0.11 | KE:286 | Altered, Transcription of genes by the androgen receptor |
| AOP:496 | Androgen receptor agonism leading to reproduction dysfunction (in zebrafish) | Unclassified | - | Zebrafish | 0.1 | KE:286 | Altered, Transcription of genes by the androgen receptor |
| AOP:500 | Activation of MEK-ERK1/2 leads to deficits in learning and cognition via ROS and apoptosis | Developmental disorder of mental health | - | Rattus norvegicus, Mus musculus, Homo sapiens | 0.14 | KE:1262 | Apoptosis |
| AOP:509 | Nrf2 inhibition leading to vascular disrupting effects through activating apoptosis signal pathway and mitochondrial dysfunction | Cardiovascular system disease | - | | 0.14 | KE:1365 | Increase, Apoptosis |
| AOP:513 | Reactive Oxygen (ROS) formation leads to cancer via Peroxisome proliferation-activated receptor (PPAR) pathway | Cancer | - | Human, Mouse, Rat | 0.2 | KE:233 | Decreased, PPAR-gamma activation |
| AOP:525 | Reduced oligodendrocyte differentiation during neurodevelopment leading to impaired learning and memory | Developmental disorder of mental health | - | | 0.08 | KE:1656 | Antagonism, Thyroid Receptor |
| AOP:534 | Succinate dehydrogenase (SDH) inhibition leads to cancer through oxidative stress | Cancer | - | Vertebrates | 0.17 | KE:1446 | Decrease, Coupling of oxidative phosphorylation |
| AOP:535 | Binding and activation of GPER leading to learning and memory impairments | Developmental disorder of mental health | - | Mouse, Human | 0.11 | KE:1262 | Apoptosis |
| AOP:540 | Oxidative Stress in the Fish Ovary Leads to Reproductive Impairment via Reduced Vitellogenin Production | Unclassified | - | | 0.11 | KE:1262 | Apoptosis |
| AOP:563 | Aryl hydrocarbon Receptor (AHR) activation causes Premature Ovarian Insufficiency via Bax mediated apoptosis | Reproductive system disease; Endocrine system disease | - | Rat, Mouse, Zebra fish, Human | 0.17 | KE:1262 | Apoptosis |
| AOP:573 | Inhibition, cytochrome oxidase leads to Increased, pulmonary edema | Respiratory system disease | - | Rodents, Humans | 0.33 | KE:1825 | Increase, Cell death |
| AOP:574 | Inhibition, cytochrome oxidase leads to Loss of olfactory function | Unclassified | - | Rodents, Humans | 0.33 | KE:1825 | Increase, Cell death |