| AOP:10 | Binding to the picrotoxin site of ionotropic GABA receptors leading to epileptic seizures in adult brain | Nervous system disease | WPHA/WNT Endorsed | Human, Mouse, Rat, Bobwhite quail, Zebrafish | 0.17 | KE:616 | Occurrence, A paroxysmal depolarizing shift |
| AOP:12 | Chronic binding of antagonist to N-methyl-D-aspartate receptors (NMDARs) during brain development leads to neurodegeneration with impairment in learning and memory in aging | Nervous system disease; Developmental disorder of mental health | WPHA/WNT Endorsed | Monkey, Rat, Human, Mouse, Zebrafish | 0.12 | KE:52 | Decreased, Calcium influx |
| AOP:13 | Chronic binding of antagonist to N-methyl-D-aspartate receptors (NMDARs) during brain development induces impairment of learning and memory abilities | Developmental disorder of mental health | WPHA/WNT Endorsed | Human, Mouse, Monkey sp., Rat | 0.1 | KE:52 | Decreased, Calcium influx |
| AOP:15 | Alkylation of DNA in male pre-meiotic germ cells leading to heritable mutations | Genetic disease | WPHA/WNT Endorsed | Mus musculus, Drosophila melanogaster, Oryzias latipes, Syrian golden hamster | 0.5 | KE:155 | Inadequate DNA repair |
| KE:185 | Increase, Mutations |
| AOP:18 | PPARα activation in utero leading to impaired fertility in males | Reproductive system disease | Under Review | Human, Rat, Mouse | 0.12 | KE:1690 | Decrease, circulating testosterone levels |
| AOP:27 | Cholestatic Liver Injury induced by Inhibition of the Bile Salt Export Pump (ABCB11) | Gastrointestinal system disease | Under Development | Humans | 0.25 | KE:149 | Increase, Inflammation |
| KE:1115 | Increase, Reactive oxygen species |
| AOP:28 | Cyclooxygenase inhibition leading reproductive failure | Reproductive system disease | - | | 0.17 | KE:49 | Reduction, Ca and HCO3 transport to shell gland |
| AOP:39 | Covalent Binding, Protein, leading to Increase, Allergic Respiratory Hypersensitivity Response | Respiratory system disease | Under Development | Human, Mouse | 0.2 | KE:272 | Activation/Proliferation, T-cells |
| AOP:40 | Covalent Protein binding leading to Skin Sensitisation | Integumentary system disease | WPHA/WNT Endorsed | Mouse, Human | 0.2 | KE:272 | Activation/Proliferation, T-cells |
| AOP:41 | Sustained AhR Activation leading to Rodent Liver Tumours | Cancer; Gastrointestinal system disease | Under Review | Rattus sp. ABTC 42503, Mus sp. 2000082 | 0.6 | KE:854 | Alterations, Cellular proliferation / hyperplasia |
| KE:853 | Changes/Inhibition, Cellular Homeostasis and Apoptosis |
| KE:139 | N/A, Hepatotoxicity, Hepatopathy, including a constellation of observable effects |
| AOP:48 | Binding of agonists to ionotropic glutamate receptors in adult brain causes excitotoxicity that mediates neuronal cell death, contributing to learning and memory impairment. | Developmental disorder of mental health | WPHA/WNT Endorsed | Human, Mouse, Rat | 0.11 | KE:389 | Increased, Intracellular Calcium overload |
| AOP:58 | NR1I3 (CAR) suppression leading to hepatic steatosis | Gastrointestinal system disease; Inherited metabolic disorder | - | Human, Mouse, Rat | 0.06 | KE:454 | Increased, Triglyceride formation |
| AOP:60 | NR1I2 (Pregnane X Receptor, PXR) activation leading to hepatic steatosis | Gastrointestinal system disease; Inherited metabolic disorder | - | | 0.08 | KE:454 | Increased, Triglyceride formation |
| AOP:64 | Glucocorticoid Receptor (GR) Mediated Adult Leydig Cell Dysfunction Leading to Decreased Male Fertility | Reproductive system disease | - | Rattus norvegicus | 0.29 | KE:496 | Increased apoptosis, decreased fetal/adult Leydig Cells |
| KE:1690 | Decrease, circulating testosterone levels |
| AOP:73 | Xenobiotic Inhibition of Dopamine-beta-Hydroxylase and subsequent reduced fecundity | Unclassified | - | | 0.15 | KE:10059 | Decreased LH surge for 24 hours |
| KE:531 | Decreased, LH Surge |
| AOP:80 | Nicotinic acetylcholine receptor activation contributes to accumulation of damaged mitochondrial DNA and leads to colony loss/failure | Unclassified | - | Honey bee | 0.12 | KE:664 | Overwhelmed, Mitochondrial DNA repair mechanisms |
| AOP:96 | Axonal sodium channel modulation leading to acute mortality | Unclassified | - | Insects, Fish | 0.17 | KE:599 | prolonged, Depolarization of neuronal membrane |
| AOP:102 | Cyclooxygenase inhibition leading to reproductive dysfunction via interference with meiotic prophase I /metaphase I transition | Reproductive system disease | - | Goldfish, Human, Rat, Mouse | 0.1 | KE:690 | Reduced, Luteinizing hormone (LH), plasma |
| AOP:103 | Cyclooxygenase inhibition leading to reproductive dysfunction via interference with spindle assembly checkpoint | Reproductive system disease | - | Goldfish, Human, Rat, Mouse | 0.2 | KE:690 | Reduced, Luteinizing hormone (LH), plasma |
| KE:696 | Increased, Chromosome misseggregation |
| AOP:105 | Alpha2u-microglobulin cytotoxicity leading to renal tubular adenomas and carcinomas (in male rat) | Cancer; Urinary system disease | - | Rattus norvegicus | 0.17 | KE:710 | Increase, Regenerative cell proliferation (tubular epithelial cells) |
| AOP:109 | Cytotoxicity leading to bronchioloalveolar adenomas and carcinomas (in mouse) | Cancer; Respiratory system disease | - | Mus musculus | 0.2 | KE:734 | Increase, Regenerative cell proliferation (terminal bronchiolar epithelial cells) |
| AOP:110 | Inhibition of iodide pump activity leading to follicular cell adenomas and carcinomas (in rat and mouse) | Cancer; Endocrine system disease | - | Rattus norvegicus, Mus musculus | 0.14 | KE:739 | Increase, Hypertrophy and proliferation (follicular cell) |
| AOP:111 | Decrease in androgen receptor activity leading to Leydig cell tumors (in rat) | Cancer; Reproductive system disease | - | Rattus norvegicus | 0.2 | KE:754 | Increased, Luteinizing hormone (LH) |
| AOP:114 | HPPD inhibition leading to corneal papillomas and carcinomas (in rat) | Cancer | - | Rattus norvegicus | 0.33 | KE:778 | Increase, Regenerative cell proliferation (corneal cells) |
| KE:777 | Increase, Inflammation (corneal cells) |
| AOP:115 | Epithelial cytotoxicity leading to forestomach tumors (in mouse and rat) | Cancer | - | Mus musculus, Rattus norvegicus | 0.4 | KE:149 | Increase, Inflammation |
| KE:781 | Increase, Regenerative cell proliferation (forestomach epithelial cells) |
| AOP:116 | Cytotoxicity leading to renal tubular adenomas and carcinomas (in male rat) | Cancer; Urinary system disease | - | Rattus norvegicus | 0.25 | KE:710 | Increase, Regenerative cell proliferation (tubular epithelial cells) |
| AOP:119 | Inhibition of thyroid peroxidase leading to follicular cell adenomas and carcinomas (in rat and mouse) | Cancer; Endocrine system disease | - | Rattus norvegicus, Mus musculus | 0.14 | KE:739 | Increase, Hypertrophy and proliferation (follicular cell) |
| AOP:120 | Inhibition of 5α-reductase leading to Leydig cell tumors (in rat) | Cancer; Reproductive system disease | - | Rattus norvegicus, Mus musculus | 0.2 | KE:1690 | Decrease, circulating testosterone levels |
| AOP:121 | Urinary bladder calculi leading to urothelial papillomas and carcinomas (in mouse and rat) | Cancer; Urinary system disease | - | Mus musculus, Rattus norvegicus | 0.2 | KE:795 | Increase, Regenerative cell proliferation (urothelial cells) |
| AOP:124 | HMG-CoA reductase inhibition leading to decreased fertility | Reproductive system disease | - | Rattus rattus | 0.33 | KE:807 | Decreased, cholesterol |
| KE:1690 | Decrease, circulating testosterone levels |
| AOP:126 | Alpha-noradrenergic antagonism leads to reduced fecundity via delayed ovulation | Unclassified | - | | 0.15 | KE:10059 | Decreased LH surge for 24 hours |
| KE:531 | Decreased, LH Surge |
| AOP:136 | Intracellular Acidification Induced Olfactory Epithelial Injury Leading to Site of Contact Nasal Tumors | Benign neoplasm; Respiratory system disease | Under Review | | 0.14 | KE:870 | Increase, Cell Proliferation |
| AOP:149 | Peptide Oxidation Leading to Hypertension | Cardiovascular system disease | Under Development | Human, Mouse, Rat, Cow | 0.1 | KE:933 | KE6 : Depletion, Nitric Oxide |
| AOP:164 | Beta-2 adrenergic agonist activity leading to mesovarian leiomyomas in the rat and mouse | Cancer; Reproductive system disease | - | CD-1 mouse, SD rat | 0.17 | KE:1042 | Proliferation/Clonal Expansion, smooth muscle |
| AOP:167 | Early-life estrogen receptor activity leading to endometrial carcinoma in the mouse. | Reproductive system disease; Cancer | - | Mouse, Homo sapiens | 0.14 | KE:1067 | Proliferation/Clonal Expansion, aberrant basal cells |
| AOP:173 | Substance interaction with the pulmonary resident cell membrane components leading to pulmonary fibrosis | Musculoskeletal system disease; Respiratory system disease | WPHA/WNT Endorsed | Human, Mouse, Rat | 0.12 | KE:1497 | Increased, recruitment of inflammatory cells |
| AOP:206 | Peroxisome proliferator-activated receptors γ inactivation leading to lung fibrosis | Musculoskeletal system disease; Respiratory system disease | Under Development | Homo sapiens | 0.17 | KE:149 | Increase, Inflammation |
| AOP:207 | NADPH oxidase and P38 MAPK activation leading to reproductive failure in Caenorhabditis elegans | Reproductive system disease | - | Caenorhabditis elegans | 0.38 | KE:1115 | Increase, Reactive oxygen species |
| KE:1281 | Increased, DNA Damage-Repair |
| 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:213 | Inhibition of fatty acid beta oxidation leading to nonalcoholic steatohepatitis (NASH) | Gastrointestinal system disease; Inherited metabolic disorder | - | Vertebrates | 0.17 | KE:1115 | Increase, Reactive oxygen species |
| AOP:218 | Inhibition of CYP7B activity leads to decreased reproductive success via decreased locomotor activity | Unclassified | - | Japanese quail, Cynops pyrrhogaster | 0.17 | KE:1141 | Decreased, Reproductive Success |
| AOP:219 | Inhibition of CYP7B activity leads to decreased reproductive success via decreased sexual behavior | Unclassified | - | Japanese quail, Cynops pyrrhogaster | 0.17 | KE:1141 | Decreased, Reproductive Success |
| AOP:245 | Reduction in photophosphorylation leading to growth inhibition in aquatic plants | Unclassified | - | Lemna minor, Lemna gibba | 0.09 | KE:40 | Decrease, Mitochondrial ATP production |
| AOP:258 | Renal protein alkylation leading to kidney toxicity | Urinary system disease | Under Development | Human, Rat, Mouse | 0.2 | KE:40 | Decrease, Mitochondrial ATP production |
| AOP:280 | α-diketone-induced bronchiolitis obliterans | Musculoskeletal system disease; Respiratory system disease | - | | 0.14 | KE:149 | Increase, Inflammation |
| AOP:281 | Acetylcholinesterase Inhibition Leading to Neurodegeneration | Nervous system disease | - | | 0.1 | KE:389 | Increased, Intracellular Calcium overload |
| AOP:286 | Mitochondrial complex III antagonism leading to growth inhibition (1) | Unclassified | - | Lemna minor, Daphnia magna, Danio rerio | 0.5 | KE:1821 | Decrease, Cell proliferation |
| KE:1771 | Decrease, Adenosine triphosphate pool |
| AOP:287 | Mitochondrial complex III antagonism leading to growth inhibition (2) | Unclassified | - | Lemna minor, Daphnia magna, Danio rerio | 0.25 | KE:1771 | Decrease, Adenosine triphosphate pool |
| 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:1690 | Decrease, circulating testosterone levels |
| AOP:290 | Mitochondrial ATP synthase antagonism leading to growth inhibition (1) | Unclassified | - | Daphnia magna | 0.5 | KE:1821 | Decrease, Cell proliferation |
| KE:1771 | Decrease, Adenosine triphosphate pool |
| AOP:291 | Mitochondrial ATP synthase antagonism leading to growth inhibition (2) | Unclassified | - | Daphnia magna | 0.25 | KE:1771 | Decrease, Adenosine triphosphate pool |
| AOP:299 | Deposition of energy leading to population decline via DNA oxidation and follicular atresia | Unclassified | - | | 0.14 | KE:1115 | Increase, Reactive oxygen species |
| AOP:311 | Deposition of energy leading to population decline via DNA oxidation and oocyte apoptosis | Unclassified | - | Daphnia magna, Fish | 0.14 | KE:1115 | Increase, Reactive oxygen species |
| AOP:321 | Reduced environmental pH leading to thinner shells in Mytilus edulis | Unclassified | - | | 0.09 | KE:10042 | Abnormal development |
| AOP:322 | Alkylation of DNA leading to reduced sperm count | Reproductive system disease | - | | 0.2 | KE:155 | Inadequate DNA repair |
| AOP:323 | PPARalpha Agonism Leading to Decreased Viable Offspring via Decreased 11-Ketotestosterone | Unclassified | - | Teleost fish | 0.33 | KE:1756 | Decreased, plasma 11-ketotestosterone level |
| KE:807 | Decreased, cholesterol |
| AOP:335 | AOP for urothelial carcinogenesis due to chemical cytotoxicity by mitochondrial impairment | Cancer; Urinary system disease | - | Rat | 0.2 | KE:795 | Increase, Regenerative cell proliferation (urothelial cells) |
| AOP:348 | Inhibition of 11β-Hydroxysteroid Dehydrogenase leading to decreased population trajectory | Unclassified | Under Development | Fish | 0.2 | KE:1756 | Decreased, plasma 11-ketotestosterone level |
| AOP:349 | Inhibition of 11β-hydroxylase leading to decresed population trajectory | Unclassified | Under Development | Fish | 0.12 | KE:1756 | Decreased, plasma 11-ketotestosterone level |
| AOP:382 | Angiotensin II type 1 receptor (AT1R) agonism leading to lung fibrosis | Musculoskeletal system disease; Respiratory system disease | Under Development | | 0.17 | KE:1115 | Increase, Reactive oxygen species |
| AOP:383 | Inhibition of Angiotensin-converting enzyme 2 leading to liver fibrosis | Gastrointestinal system disease | Under Development | | 0.17 | KE:1115 | Increase, Reactive oxygen species |
| AOP:386 | Deposition of ionizing energy leading to population decline via inhibition of photosynthesis | Reproductive system disease | - | Lemna minor, Chlamydomonas reinhardtii | 0.12 | KE:1115 | Increase, Reactive oxygen species |
| AOP:387 | Deposition of ionising energy leading to population decline via mitochondrial dysfunction | Reproductive system disease | - | Lemna minor | 0.25 | KE:1115 | Increase, Reactive oxygen species |
| KE:40 | Decrease, Mitochondrial ATP production |
| AOP:392 | Decreased fibrinolysis and activated bradykinin system leading to hyperinflammation | Unclassified | Under Development | Humans | 0.2 | KE:1497 | Increased, recruitment of inflammatory cells |
| AOP:399 | Inhibition of Fyna leading to increased mortality via decreased eye size (Microphthalmos) | Unclassified | - | Zebrafish | 0.12 | KE:1821 | Decrease, Cell proliferation |
| AOP:409 | Frustrated phagocytosis leads to malignant mesothelioma | Cancer | - | | 0.62 | KE:1115 | Increase, Reactive oxygen species |
| KE:870 | Increase, Cell Proliferation |
| KE:1669 | Increased, DNA damage and mutation |
| KE:1896 | Genomic instability |
| KE:1497 | Increased, recruitment of inflammatory cells |
| AOP:413 | Oxidation and antagonism of reduced glutathione leading to mortality via acute renal failure | Unclassified | - | Fish, Mice | 0.33 | KE:1607 | Increase, Necrosis |
| KE:1115 | Increase, Reactive oxygen species |
| AOP:418 | Aryl hydrocarbon receptor activation leading to impaired lung function through AHR-ARNT toxicity pathway | Respiratory system disease | - | | 0.2 | KE:1115 | Increase, Reactive oxygen species |
| AOP:419 | Aryl hydrocarbon receptor activation leading to impaired lung function through P53 toxicity pathway | Respiratory system disease | - | | 0.25 | KE:1262 | Apoptosis |
| AOP:432 | Deposition of Energy by Ionizing Radiation leading to Acute Myeloid Leukemia | Hematopoietic system disease; Cancer | - | Homo sapiens, Mus musculus | 0.18 | KE:155 | Inadequate DNA repair |
| KE:870 | Increase, Cell Proliferation |
| AOP:439 | Activation of the AhR leading to metastatic breast cancer | Thoracic disease; Cancer | Under Development | Humans, Mice | 0.33 | KE:1971 | Increased, tumor growth |
| KE:149 | Increase, Inflammation |
| 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 | 0.14 | KE:1262 | 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 | 0.22 | KE:1821 | Decrease, Cell proliferation |
| 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:389 | Increased, Intracellular Calcium overload |
| AOP:468 | Binding of SARS-CoV-2 to ACE2 leads to hyperinflammation (via cell death) | Unclassified | - | | 0.12 | KE:1497 | Increased, recruitment of inflammatory cells |
| AOP:475 | Binding of chemicals to ionotropic glutamate receptors leads to impairment of learning and memory via loss of drebrin from dendritic spines of neurons | Developmental disorder of mental health | Under Development | Mouse, Rat, Human, Caenorhabditis elegans | 0.12 | KE:389 | Increased, Intracellular Calcium overload |
| AOP:478 | Deposition of energy leading to occurrence of cataracts | Nervous system disease; Monogenic disease | Under Review | Human, Mouse, Rat, Rhesus monkeys, Rabbit, Guinea pig | 0.4 | KE:155 | Inadequate DNA repair |
| KE:870 | Increase, Cell Proliferation |
| KE:1636 | Increase, Chromosomal aberrations |
| KE:185 | Increase, Mutations |
| AOP:480 | Mitochondrial complexes inhibition leading to heart failure via decreased ATP production | Cardiovascular system disease; Thoracic disease | Under Development | | 0.2 | KE:40 | Decrease, Mitochondrial ATP production |
| AOP:491 | Decrease, GLI1/2 target gene expression leads to orofacial clefting | Unclassified | Under Development | Mouse | 0.33 | KE:1821 | Decrease, Cell proliferation |
| KE:1262 | Apoptosis |
| AOP:492 | Glutathione conjugation leading to reproductive dysfunction via oxidative stress | Reproductive system disease | - | Mammals, Fish | 0.2 | KE:1115 | Increase, Reactive oxygen species |
| AOP:493 | ERa inactivation alters AT expansion and functions and leads to insulin resistance and metabolically unhealthy obesity | Acquired metabolic disease | - | Mus musculus, Homo sapiens | 0.1 | KE:1497 | Increased, recruitment of inflammatory cells |
| AOP:495 | Androgen receptor activation leading to prostate cancer | Reproductive system disease; Cancer | - | | 0.22 | KE:854 | Alterations, Cellular proliferation / hyperplasia |
| KE:1183 | Decreased, Apoptosis (Epithelial Cells) |
| AOP:496 | Androgen receptor agonism leading to reproduction dysfunction (in zebrafish) | Unclassified | - | Zebrafish | 0.1 | KE:1690 | Decrease, circulating testosterone levels |
| AOP:497 | ERa inactivation alters mitochondrial functions and insulin signalling in skeletal muscle and leads to insulin resistance and metabolic syndrome | Inherited metabolic disorder; Disease of metabolism | - | | 0.12 | KE:1115 | Increase, Reactive oxygen species |
| 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 | 0.29 | KE:1115 | Increase, Reactive oxygen species |
| KE:1262 | Apoptosis |
| AOP:503 | Activation of uterine estrogen receptor-alfa leading to endometrial adenocarcinoma, via epigenetic modulation | Reproductive system disease; Cancer | Under Review | Human, Mouse | 0.17 | KE:1896 | Genomic instability |
| AOP:521 | Essential element imbalance leads to reproductive failure via oxidative stress | Unclassified | - | Murinae gen. sp. | 0.14 | KE:1115 | Increase, Reactive oxygen species |
| AOP:535 | Binding and activation of GPER leading to learning and memory impairments | Developmental disorder of mental health | - | Mouse, Human | 0.22 | KE:389 | Increased, Intracellular Calcium overload |
| KE:1262 | Apoptosis |
| AOP:544 | Inhibition of neuropathy target esterase leading to delayed neuropathy via increased inflammation | Nervous system disease | - | Homo sapiens, Mus musculus | 0.17 | KE:149 | Increase, Inflammation |
| AOP:556 | Decreased Na/K ATPase activity leading to heart failure | Cardiovascular system disease | - | | 0.17 | KE:389 | Increased, Intracellular Calcium overload |
| AOP:558 | Phosphodiesterase inhibition leading to heart failure | Cardiovascular system disease | - | Human and other cells in culture, Rodents, Dog, Pig, Zebrafish | 0.17 | KE:389 | Increased, Intracellular Calcium overload |
| 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:564 | DBDPE-induced inhibition of mitochondrial complex Ⅰ leading to population decline via neurotoxicity and metabotoxicity. | Unclassified | - | Zebrafish | 0.09 | KE:40 | Decrease, Mitochondrial ATP production |
| AOP:569 | Decreased DNA methylation of FAM50B/PTCHD3 leading to IQ loss of children via PI3K-Akt pathway | Developmental disorder of mental health | - | | 0.17 | KE:1115 | Increase, Reactive oxygen species |