1-Methyl-3-isobutylxanthine


Associated AOPs with Level of Relevance - 1 AOPs with at least 1 KE associated with chemical, where the KE(s) are neither MIE nor AO

AOP Identifier AOP Title AO Classification OECD Status Taxonomic applicability Coverage Score The fraction of KEs within the AOP, that are mapped to the chemical-associated toxicological endpoints. KE Identifier KE Name
AOP:10Binding to the picrotoxin site of ionotropic GABA receptors leading to epileptic seizures in adult brainNervous system diseaseWPHA/WNT EndorsedHuman, Mouse, Rat, Bobwhite quail, Zebrafish0.17KE:616Occurrence, A paroxysmal depolarizing shift
AOP:17Binding of electrophilic chemicals to SH(thiol)-group of proteins and /or to seleno-proteins involved in protection against oxidative stress during brain development leads to impairment of learning and memoryDevelopmental disorder of mental healthWPHA/WNT EndorsedRat, Mouse, Human0.1KE:1392Oxidative Stress
AOP:37PPARα activation leading to hepatocellular adenomas and carcinomas in rodentsCancer; Gastrointestinal system diseaseUnder DevelopmentMouse, Rat0.2KE:716Increase, cell proliferation (hepatocytes)
AOP:39Covalent Binding, Protein, leading to Increase, Allergic Respiratory Hypersensitivity ResponseRespiratory system diseaseUnder DevelopmentHuman, Mouse0.2KE:272Activation/Proliferation, T-cells
AOP:40Covalent Protein binding leading to Skin SensitisationIntegumentary system diseaseWPHA/WNT EndorsedMouse, Human0.2KE:272Activation/Proliferation, T-cells
AOP:91Sodium channel inhibition leading to reduced survivalUnclassified-Medaka, Gammarus pulex, Hydra0.17KE:585Decreased, Sodium conductance 1
AOP:93sodium channel inhibition leading to increased predationUnclassified-0.25KE:585Decreased, Sodium conductance 1
AOP:94Sodium channel inhibition leading to congenital malformationsUnclassified-Human, Rat, Mouse0.17KE:585Decreased, Sodium conductance 1
AOP:95Ether-a-go-go (ERG) voltage-gated potassium channel inhibition leading to reduced survivalUnclassified-0.17KE:585Decreased, Sodium conductance 1
AOP:96Axonal sodium channel modulation leading to acute mortalityUnclassified-Insects, Fish0.17KE:599prolonged, Depolarization of neuronal membrane
AOP:104Altered ion channel activity leading impaired heart functionUnclassified-0.25KE:698Altered, Action Potential
AOP:107Constitutive androstane receptor activation leading to hepatocellular adenomas and carcinomas in the mouse and the ratCancer; Gastrointestinal system diseaseUnder ReviewRattus norvegicus, Mus musculus0.2KE:716Increase, cell proliferation (hepatocytes)
AOP:110Inhibition of iodide pump activity leading to follicular cell adenomas and carcinomas (in rat and mouse)Cancer; Endocrine system disease-Rattus norvegicus, Mus musculus0.14KE:739Increase, Hypertrophy and proliferation (follicular cell)
AOP:113Glutamate-gated chloride channel activation leading to acute mortalityUnclassified-Bombus impatiens, Chaetanaphothrips orchidii, Radopholus similis, Daphnia magna, Orius insidiosus, Hymenoptera, Helicoverpa zea, Lepidoptera, Liriomyza trifolii, Orius isidiosus, Acyrthosiphon kondoi0.17KE:763hyperpolarisation, neuron
AOP:114HPPD inhibition leading to corneal papillomas and carcinomas (in rat)Cancer-Rattus norvegicus0.17KE:778Increase, Regenerative cell proliferation (corneal cells)
AOP:115Epithelial cytotoxicity leading to forestomach tumors (in mouse and rat)Cancer-Mus musculus, Rattus norvegicus0.2KE:781Increase, Regenerative cell proliferation (forestomach epithelial cells)
AOP:117Androgen receptor activation leading to hepatocellular adenomas and carcinomas (in mouse and rat)Cancer; Gastrointestinal system diseaseUnder DevelopmentMus musculus, Rattus norvegicus0.25KE:716Increase, cell proliferation (hepatocytes)
AOP:118Chronic cytotoxicity leading to hepatocellular adenomas and carcinomas (in mouse and rat)Cancer; Gastrointestinal system disease-Mus musculus, Rattus norvegicus0.25KE:787Increase, Regenerative cell proliferation (hepatocytes)
AOP:119Inhibition of thyroid peroxidase leading to follicular cell adenomas and carcinomas (in rat and mouse)Cancer; Endocrine system disease-Rattus norvegicus, Mus musculus0.14KE:739Increase, Hypertrophy and proliferation (follicular cell)
AOP:121Urinary bladder calculi leading to urothelial papillomas and carcinomas (in mouse and rat)Cancer; Urinary system disease-Mus musculus, Rattus norvegicus0.2KE:795Increase, Regenerative cell proliferation (urothelial cells)
AOP:136Intracellular Acidification Induced Olfactory Epithelial Injury Leading to Site of Contact Nasal TumorsBenign neoplasm; Respiratory system diseaseUnder Review0.14KE:870Increase, Cell Proliferation
AOP:164Beta-2 adrenergic agonist activity leading to mesovarian leiomyomas in the rat and mouseCancer; Reproductive system disease-CD-1 mouse, SD rat0.17KE:1042Proliferation/Clonal Expansion, smooth muscle
AOP:167Early-life estrogen receptor activity leading to endometrial carcinoma in the mouse.Reproductive system disease; Cancer-Mouse, Homo sapiens0.29KE:1067Proliferation/Clonal Expansion, aberrant basal cells
KE:1065Activation, estrogen receptor alpha
AOP:220Cyp2E1 Activation Leading to Liver CancerCancer; Gastrointestinal system diseaseWPHA/WNT EndorsedRodents, Homo sapiens0.2KE:1392Oxidative Stress
AOP:233Mu Opioid Receptor Agonism leading to Analgesia via K Channel OpeningDevelopmental disorder of mental health-0.2KE:763hyperpolarisation, neuron
AOP:235Serotonin 1A Receptor Agonism leading to Anti-depressant Activity via K Channel OpeningUnclassified-0.2KE:763hyperpolarisation, neuron
AOP:260CYP2E1 activation and formation of protein adducts leading to neurodegenerationNervous system disease-Human0.14KE:1392Oxidative Stress
AOP:272Deposition of energy leading to lung cancerCancerWPHA/WNT EndorsedHuman, Rat, Mouse0.14KE:870Increase, Cell Proliferation
AOP:293Increased DNA damage leading to increased risk of breast cancerGenetic disease; Thoracic disease; CancerUnder DevelopmentRattus rattus, Mus musculus0.11KE:1182Increase, Cell Proliferation (Epithelial Cells)
AOP:294Increased reactive oxygen and nitrogen species (RONS) leading to increased risk of breast cancerGenetic disease; Thoracic disease; CancerUnder Development0.11KE:1182Increase, Cell Proliferation (Epithelial Cells)
AOP:303Frustrated phagocytosis-induced lung cancerCancerUnder DevelopmentMammals0.14KE:870Increase, Cell Proliferation
AOP:333Excessive reactive oxygen species leading to growth inhibition via uncoupling of oxidative phosphorylationUnclassified-0.2KE:1446Decrease, Coupling of oxidative phosphorylation
AOP:335AOP for urothelial carcinogenesis due to chemical cytotoxicity by mitochondrial impairmentCancer; Urinary system disease-Rat0.2KE:795Increase, Regenerative cell proliferation (urothelial cells)
AOP:409Frustrated phagocytosis leads to malignant mesotheliomaCancer-0.12KE:870Increase, Cell Proliferation
AOP:420Aryl hydrocarbon receptor activation leading to lung cancer through sustained NRF2 toxicity pathwayCancer-0.25KE:870Increase, Cell Proliferation
AOP:432Deposition of Energy by Ionizing Radiation leading to Acute Myeloid LeukemiaHematopoietic system disease; Cancer-Homo sapiens, Mus musculus0.09KE:870Increase, Cell Proliferation
AOP:437Inhibition of mitochondrial electron transport chain (ETC) complexes leading to kidney toxicityUrinary system diseaseUnder Development0.2KE:1392Oxidative Stress
AOP:438reactive oxygen species generation leading to increased cardiovascular morbidity and mortalityCardiovascular system disease-0.08KE:1392Oxidative Stress
AOP:440Hypothalamus estrogen receptors activity suppression leading to ovarian cancer via ovarian epithelial cell hyperplasiaBenign neoplasm; Endocrine system disease; Reproductive system disease; Reproductive system disease; Cancer; Endocrine system diseaseUnder DevelopmentHuman, Rat, Mice0.11KE:1076Increased, circulating estrogen levels
AOP:442Binding to voltage gate sodium channels during development leads to cognitive impairmentCognitive disorderUnder ReviewRattus norvegicus, Mouse, Humans0.14KE:1983Disruption, action potential generation
AOP:444Ionizing radiation leads to reduced reproduction in Eisenia fetida via reduced spermatogenesis and cocoon hatchabilityUnclassified-0.11KE:1392Oxidative Stress
AOP:446PM-related Adverse outcome pathway frameworks on various systemsRespiratory system disease-0.05KE:1392Oxidative Stress
AOP:447Kidney failure induced by inhibition of mitochondrial electron transfer chain through apoptosis, inflammation and oxidative stress pathwaysUrinary system disease-0.08KE:1392Oxidative Stress
AOP:448ROS, inflammation, and activation of nAChR lead to increased incidence of cardiovascular morbidity and mortalityCardiovascular system disease-0.06KE:1392Oxidative Stress
AOP:450Inhibition of AChE and activation of CYP2E1 leading to sensory axonal peripheral neuropathy and mortalityNervous system disease-Rattus norvegicus, Mus musculus, Homo sapiens0.14KE:1392Oxidative Stress
AOP:451Interaction with lung resident cell membrane components leads to lung cancerCancer-Human0.11KE:870Increase, Cell Proliferation
AOP:452Adverse outcome pathway of PM-induced respiratory toxicityRespiratory system disease-0.09KE:1392Oxidative Stress
AOP:453Reactive oxygen species and subsequent oxidative stress lead to increased incidence of digestive morbidity and mortality in the general populationGastrointestinal system disease-0.08KE:1392Oxidative Stress
AOP:457Succinate dehydrogenase inhibition leading to increased insulin resistance through reduction in circulating thyroxineInherited metabolic disorder-Human0.17KE:1392Oxidative Stress
AOP:459AhR activation in the thyroid leading to Subsequent Adverse Neurodevelopmental Outcomes in MammalsCognitive disorder-Human, Mouse, Rat0.11KE:1392Oxidative Stress
AOP:463The AOP framwork on silica nanopariticles induced hepatoxicityGastrointestinal system disease-0.09KE:1392Oxidative Stress
AOP:464Calcium overload in dopaminergic neurons of the substantia nigra leading to parkinsonian motor deficitsNervous system disease-0.05KE:1392Oxidative Stress
AOP:469Reactive oxygen speicies overproduction leading to increased digestive morbidity and mortality in generation populationGastrointestinal system disease-0.08KE:1392Oxidative Stress
AOP:470Deposition of energy leads to abnormal vascular remodelingCardiovascular system diseaseUnder ReviewHuman, Rat, Mouse, Rabbit0.25KE:1392Oxidative Stress
KE:2244Altered Stress Response Signaling
AOP:478Deposition of energy leading to occurrence of cataractsNervous system disease; Monogenic diseaseUnder ReviewHuman, Mouse, Rat, Rhesus monkeys, Rabbit, Guinea pig0.2KE:1392Oxidative Stress
KE:870Increase, Cell Proliferation
AOP:479Mitochondrial complexes inhibition leading to left ventricular function decrease via increased myocardial oxidative stressCardiovascular system disease; Thoracic diseaseUnder Development0.14KE:1392Oxidative Stress
AOP:482Deposition of energy leading to occurrence of bone lossMusculoskeletal system diseaseUnder ReviewHuman, Mouse, Rat, Rhesus monkeys0.14KE:1392Oxidative Stress
AOP:483Deposition of Energy Leading to Learning and Memory ImpairmentDevelopmental disorder of mental healthUnder ReviewMouse, Rat, Rabbit, Dog, Pigs, Cow, Human0.25KE:1392Oxidative Stress
KE:2244Altered Stress Response Signaling
AOP:488Increased reactive oxygen species production leading to decreased cognitive functionCognitive disorder-Human0.14KE:1392Oxidative Stress
AOP:497ERa inactivation alters mitochondrial functions and insulin signalling in skeletal muscle and leads to insulin resistance and metabolic syndromeInherited metabolic disorder; Disease of metabolism-0.12KE:1392Oxidative Stress
AOP:505Reactive Oxygen Species (ROS) formation leads to cancer via inflammation pathwayCancer-Human, Mouse, Rat0.2KE:1392Oxidative Stress
AOP:507Nrf2 inhibition leading to vascular disrupting effects via inflammation pathwayCardiovascular system disease-Mouse, Zebrafish, Human0.17KE:1392Oxidative Stress
AOP:509Nrf2 inhibition leading to vascular disrupting effects through activating apoptosis signal pathway and mitochondrial dysfunctionCardiovascular system disease-0.14KE:1392Oxidative Stress
AOP:510Demethylation of PPAR promotor leading to vascular disrupting effectsCardiovascular system disease-Human, Mouse, Zebrafish0.1KE:1392Oxidative Stress
AOP:511The AOP framework on ROS-mediated oxidative stress induced vascular disrupting effectsCardiovascular system disease-Human, Mouse, Zebrafish0.06KE:1392Oxidative Stress
AOP:521Essential element imbalance leads to reproductive failure via oxidative stressUnclassified-Murinae gen. sp.0.14KE:1392Oxidative Stress
AOP:534Succinate dehydrogenase (SDH) inhibition leads to cancer through oxidative stressCancer-Vertebrates0.33KE:1392Oxidative Stress
KE:1446Decrease, Coupling of oxidative phosphorylation
AOP:535Binding and activation of GPER leading to learning and memory impairmentsDevelopmental disorder of mental health-Mouse, Human0.11KE:1392Oxidative Stress
AOP:540Oxidative Stress in the Fish Ovary Leads to Reproductive Impairment via Reduced Vitellogenin ProductionUnclassified-0.11KE:1392Oxidative Stress
AOP:541Excessive ROS generation leading to increased incidence of vascular calcification by VSMC phenotype switchingCardiovascular system disease-0.08KE:1392Oxidative Stress
AOP:551Increased Muscarinic M2 Receptor leading to ArrhythmiaSymptom-Human, Mouse, Rat0.2KE:1983Disruption, action potential generation
AOP:552Inhibiton of L-Type Calcium Channels leading to heart failure via QT interval prolongation and Torsades de Pointes (TdP)Cardiovascular system disease-Human, Rat, Mouse0.17KE:698Altered, Action Potential
AOP:553Inhibition of Voltage-gated sodium channels (Na⁺ channels) leading to heart failureCardiovascular system disease-Human, Rodents, Dogs, Pigs, Insects, Fish0.25KE:698Altered, Action Potential
AOP:559Inhibition of acetylcholinesterase (AChE) leading to arrhythmiasSymptom-Human and other cells in culture, Rattus norvegicus, Dogs, Sus scrofa, Zebrafish, Insecta sp. BOLD:AAN51990.2KE:698Altered, Action Potential

Associated AOPs with Level of Relevance - 2 AOPs with at least 1 AO associated with chemical, and no associated MIE

AOP Identifier AOP Title AO Classification OECD Status Taxonomic applicability Coverage Score The fraction of KEs within the AOP, that are mapped to the chemical-associated toxicological endpoints. KE Identifier KE Name
AOP:498Increased LCN2/iron complex leading to neurological disordersNervous system disease-Homo sapiens0.25KE:2150Neurological disorder
AOP:501Excessive iron accumulation leading to neurological disordersNervous system disease-Homo sapiens0.5KE:1392Oxidative Stress
KE:2150Neurological disorder
AOP:504SULT1E1 inhibition leading to uterine adenocarcinoma via increased estrogen availability at target organ levelUnclassified-Mammals0.67KE:1065Activation, estrogen receptor alpha
KE:2251Estradiol availability, increased

Associated AOPs with Level of Relevance - 3 AOPs with at least 1 MIE associated with chemical, and no associated AO

AOP Identifier AOP Title AO Classification OECD Status Taxonomic applicability Coverage Score The fraction of KEs within the AOP, that are mapped to the chemical-associated toxicological endpoints. KE Identifier KE Name
AOP:263Uncoupling of oxidative phosphorylation leading to growth inhibition via decreased cell proliferationUnclassifiedWPHA/WNT EndorsedZebrafish, Mouse, Rat, Lemna minor, Human, Caenorhabditis elegans0.25KE:1446Decrease, Coupling of oxidative phosphorylation
AOP:264Uncoupling of oxidative phosphorylation leading to growth inhibition via ATP depletion associated cell deathUnclassifiedUnder Development0.25KE:1446Decrease, Coupling of oxidative phosphorylation
AOP:265Uncoupling of oxidative phosphorylation leading to growth inhibition via increased cytosolic calciumUnclassifiedUnder Development0.25KE:1446Decrease, Coupling of oxidative phosphorylation
AOP:266Uncoupling of oxidative phosphorylation leading to growth inhibition via decreased Na-K ATPase activityUnclassifiedUnder Development0.17KE:1446Decrease, Coupling of oxidative phosphorylation
AOP:267Uncoupling of oxidative phosphorylation leading to growth inhibition via glucose depletionUnclassifiedUnder Development0.2KE:1446Decrease, Coupling of oxidative phosphorylation
AOP:268Uncoupling of oxidative phosphorylation leading to growth inhibition via mitochondrial swellingUnclassifiedUnder Development0.25KE:1446Decrease, Coupling of oxidative phosphorylation
AOP:411Oxidative stress Leading to Decreased Lung FunctionRespiratory system disease-Homo sapiens0.25KE:1392Oxidative Stress
AOP:424Oxidative stress Leading to Decreased Lung Function via CFTR dysfunctionRespiratory system disease-Human0.17KE:1392Oxidative Stress
AOP:425Oxidative Stress Leading to Decreased Lung Function via Decreased FOXJ1Respiratory system disease-Human0.17KE:1392Oxidative Stress
AOP:445Estrogen Receptor Alpha Agonism leads to Impaired ReproductionReproductive system disease-0.12KE:1065Activation, estrogen receptor alpha
AOP:472DNA adduct formation leading to kidney failureUrinary system disease-0.11KE:1392Oxidative Stress
AOP:503Activation of uterine estrogen receptor-alfa leading to endometrial adenocarcinoma, via epigenetic modulationReproductive system disease; CancerUnder ReviewHuman, Mouse0.17KE:1065Activation, estrogen receptor alpha

Associated AOPs with Level of Relevance - 5 AOPs with at least 1 MIE and AO associated with chemical, and there exists a directed path between that MIE and AO

AOP Identifier AOP Title AO Classification OECD Status Taxonomic applicability Coverage Score The fraction of KEs within the AOP, that are mapped to the chemical-associated toxicological endpoints. KE Identifier KE Name
AOP:561Aromatase induction leading to estrogen receptor alpha activation via increased estradiolUnclassified-Vertebrates1.0KE:2251Estradiol availability, increased
KE:1065Activation, estrogen receptor alpha
KE:2293Aromatase, induction
KE:1076Increased, circulating estrogen levels
KE:2294Plasma estradiol, increased

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We have built a comprehensive resource which compiles potential endocrine disrupting chemicals (EDCs) based on the observed adverse effects or endocrine-mediated endpoints in published experiments on humans or rodents to support basic research. We are not responsible for any errors or omissions in the published research articles or supporting literature on potential EDCs compiled in this resource. Users are advised to exercise their own judgement on the weight of evidence for potential EDCs compiled in this resource. Importantly, our sole goal to build this resource on potential EDCs is to enable future basic research towards better understanding of the systems-level perturbations upon chemical exposure rather than influencing regulatory advice on chemical use.