Imidacloprid


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:7Aromatase (Cyp19a1) reduction leading to impaired fertility in adult femaleReproductive system disease; Endocrine system disease; Reproductive system diseaseUnder ReviewRat, Mouse, Human0.4KE:219Reduction, Plasma 17beta-estradiol concentrations
KE:3Reduction, 17beta-estradiol synthesis by ovarian granulosa cells
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:18PPARα activation in utero leading to impaired fertility in malesReproductive system diseaseUnder ReviewHuman, Rat, Mouse0.25KE:447Reduction, Cholesterol transport in mitochondria
KE:1690Decrease, circulating testosterone levels
AOP:23Androgen receptor agonism leading to reproductive dysfunction (in repeat-spawning fish)UnclassifiedWPHA/WNT EndorsedPimephales promelas0.2KE:219Reduction, Plasma 17beta-estradiol concentrations
KE:3Reduction, 17beta-estradiol synthesis by ovarian granulosa cells
AOP:25Aromatase inhibition leading to reproductive dysfunctionUnclassifiedWPHA/WNT EndorsedFathead minnow, Medaka, Zebrafish0.25KE:219Reduction, Plasma 17beta-estradiol concentrations
KE:3Reduction, 17beta-estradiol synthesis by ovarian granulosa cells
AOP:48Binding 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 healthWPHA/WNT EndorsedHuman, Mouse, Rat0.11KE:352N/A, Neurodegeneration
AOP:60NR1I2 (Pregnane X Receptor, PXR) activation leading to hepatic steatosisGastrointestinal system disease; Inherited metabolic disorder-0.08KE:474Down Regulation, HMGCS2
AOP:64Glucocorticoid Receptor (GR) Mediated Adult Leydig Cell Dysfunction Leading to Decreased Male FertilityReproductive system disease-Rattus norvegicus0.29KE:520Decreased sperm quantity or quality in the adult, Decreased fertility
KE:1690Decrease, circulating testosterone levels
AOP:73Xenobiotic Inhibition of Dopamine-beta-Hydroxylase and subsequent reduced fecundityUnclassified-0.15KE:10059Decreased LH surge for 24 hours
KE:531Decreased, LH Surge
AOP:102Cyclooxygenase inhibition leading to reproductive dysfunction via interference with meiotic prophase I /metaphase I transitionReproductive system disease-Goldfish, Human, Rat, Mouse0.1KE:690Reduced, Luteinizing hormone (LH), plasma
AOP:103Cyclooxygenase inhibition leading to reproductive dysfunction via interference with spindle assembly checkpointReproductive system disease-Goldfish, Human, Rat, Mouse0.1KE:690Reduced, Luteinizing hormone (LH), plasma
AOP:108Inhibition of pyruvate dehydrogenase kinase leading to hepatocellular adenomas and carcinomas (in mouse and rat)Cancer; Gastrointestinal system disease-Mus musculus, Rattus norvegicus0.17KE:726Increased, Induction of pyruvate dehydrogenase (PDH)
AOP:112Increased dopaminergic activity leading to endometrial adenocarcinomas (in Wistar rat)Reproductive system disease; Cancer-Rattus norvegicus0.17KE:749Decreased, Progesterone from corpus luteum
AOP:120Inhibition of 5α-reductase leading to Leydig cell tumors (in rat)Cancer; Reproductive system disease-Rattus norvegicus, Mus musculus0.2KE:1690Decrease, circulating testosterone levels
AOP:122Prolyl hydroxylase inhibition leading to reproductive dysfunction via increased HIF1 heterodimer formationUnclassified-Pimephales promelas0.2KE:219Reduction, Plasma 17beta-estradiol concentrations
KE:3Reduction, 17beta-estradiol synthesis by ovarian granulosa cells
AOP:123Unknown MIE leading to reproductive dysfunction via increased HIF-1alpha transcriptionUnclassified-Pimephales promelas0.18KE:219Reduction, Plasma 17beta-estradiol concentrations
KE:3Reduction, 17beta-estradiol synthesis by ovarian granulosa cells
AOP:124HMG-CoA reductase inhibition leading to decreased fertilityReproductive system disease-Rattus rattus0.33KE:807Decreased, cholesterol
KE:1690Decrease, circulating testosterone levels
AOP:126Alpha-noradrenergic antagonism leads to reduced fecundity via delayed ovulationUnclassified-0.15KE:10059Decreased LH surge for 24 hours
KE:531Decreased, LH Surge
AOP:220Cyp2E1 Activation Leading to Liver CancerCancer; Gastrointestinal system diseaseWPHA/WNT EndorsedRodents, Homo sapiens0.2KE:1392Oxidative Stress
AOP:271Inhibition of thyroid peroxidase leading to impaired fertility in fishUnclassifiedUnder DevelopmentFish0.2KE:219Reduction, Plasma 17beta-estradiol concentrations
AOP:278IKK complex inhibition leading to liver injuryUnclassified-0.12KE:1579Increase, proinflammatory mediators (TNFalpha)
AOP:288Inhibition of 17α-hydrolase/C 10,20-lyase (Cyp17A1) activity leads to birth reproductive defects (cryptorchidism) in male (mammals)Endocrine system disease-Human, Rat0.12KE:1690Decrease, circulating testosterone levels
AOP:289Inhibition of 5α-reductase leading to impaired fecundity in female fishUnclassifiedUnder DevelopmentFish0.17KE:219Reduction, Plasma 17beta-estradiol concentrations
AOP:309Luteinizing hormone receptor antagonism leading to reproductive dysfunctionUnclassified-Fish0.29KE:1693Reduction, Plasma progesterone concentration
KE:1692Reduction, Progesterone synthesis
AOP:310Embryonic Activation of the AHR leading to Reproductive failure, via epigenetic down-regulation of GnRHRUnclassified-Zebrafish0.17KE:219Reduction, Plasma 17beta-estradiol concentrations
KE:3Reduction, 17beta-estradiol synthesis by ovarian granulosa cells
AOP:323PPARalpha Agonism Leading to Decreased Viable Offspring via Decreased 11-KetotestosteroneUnclassified-Teleost fish0.33KE:1758Impaired, Spermatogenesis
KE:807Decreased, cholesterol
AOP:346Aromatase inhibition leads to male-biased sex ratio via impacts on gonad differentiationUnclassifiedWPHA/WNT EndorsedZebrafish, Oreochromis niloticus, Chinook salmon, Fathead minnow, European sea bass0.2KE:1789Reduction, 17beta-estradiol synthesis by the undifferentiated gonad
AOP:348Inhibition of 11β-Hydroxysteroid Dehydrogenase leading to decreased population trajectoryUnclassifiedUnder DevelopmentFish0.2KE:1758Impaired, Spermatogenesis
AOP:349Inhibition of 11β-hydroxylase leading to decresed population trajectoryUnclassifiedUnder DevelopmentFish0.12KE:1798Decreased spermatogenesis
AOP:374Binding of Sars-CoV-2 spike protein to ACE 2 receptors expressed on brain cells (neuronal and non-neuronal) leads to neuroinflammation resulting in encephalitisNervous system diseaseUnder DevelopmentHuman0.25KE:352N/A, Neurodegeneration
AOP:382Angiotensin II type 1 receptor (AT1R) agonism leading to lung fibrosisMusculoskeletal system disease; Respiratory system diseaseUnder Development0.17KE:1172Increased activation, Nuclear factor kappa B (NF-kB)
AOP:416Aryl hydrocarbon receptor activation leading to lung cancer through IL-6 toxicity pathwayCancer-0.17KE:1933Increased, Interleukin-6 production
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:439Activation of the AhR leading to metastatic breast cancerThoracic disease; CancerUnder DevelopmentHumans, Mice0.11KE:1971Increased, tumor growth
AOP:443DNA damage and mutations leading to Metastatic Breast CancerThoracic disease; CancerUnder DevelopmentHuman and other cells in culture, Human, Mice, Rat, Canine heartworm nematode, Yeast0.1KE:1172Increased activation, Nuclear factor kappa B (NF-kB)
AOP:444Ionizing radiation leads to reduced reproduction in Eisenia fetida via reduced spermatogenesis and cocoon hatchabilityUnclassified-0.22KE:1392Oxidative Stress
KE:1798Decreased spermatogenesis
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 sapiens0.29KE:1392Oxidative Stress
KE:352N/A, Neurodegeneration
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 pig0.1KE:1392Oxidative Stress
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:496Androgen receptor agonism leading to reproduction dysfunction (in zebrafish)Unclassified-Zebrafish0.2KE:219Reduction, Plasma 17beta-estradiol concentrations
KE:1690Decrease, circulating testosterone levels
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:500Activation of MEK-ERK1/2 leads to deficits in learning and cognition via ROS and apoptosisDevelopmental disorder of mental health-Rattus norvegicus, Mus musculus, Homo sapiens0.14KE:352N/A, Neurodegeneration
AOP:501Excessive iron accumulation leading to neurological disordersNervous system disease-Homo sapiens0.25KE:1392Oxidative Stress
AOP:504SULT1E1 inhibition leading to uterine adenocarcinoma via increased estrogen availability at target organ levelUnclassified-Mammals0.33KE:2251Estradiol availability, increased
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.0.43KE:1392Oxidative Stress
KE:2206Increased, histomorphological alteration of testis
KE:1758Impaired, Spermatogenesis
AOP:525Reduced oligodendrocyte differentiation during neurodevelopment leading to impaired learning and memoryDevelopmental disorder of mental health-0.08KE:2115Altered, cholesterol metabolism
AOP:535Binding and activation of GPER leading to learning and memory impairmentsDevelopmental disorder of mental health-Mouse, Human0.22KE:1392Oxidative Stress
KE:2233Decreased, ERαβ heterodimers
AOP:540Oxidative Stress in the Fish Ovary Leads to Reproductive Impairment via Reduced Vitellogenin ProductionUnclassified-0.22KE:1392Oxidative Stress
KE:3Reduction, 17beta-estradiol synthesis by ovarian granulosa cells
AOP:541Excessive ROS generation leading to increased incidence of vascular calcification by VSMC phenotype switchingCardiovascular system disease-0.08KE:1392Oxidative Stress
AOP:549Aromatase inhibition leads to reproductive toxicity (including growth and developmental toxicity) in adult female zebrafishUnclassified-0.12KE:219Reduction, Plasma 17beta-estradiol concentrations
AOP:550Increased LMNA gene mutation leading to heart failureCardiovascular system disease-Human, Mouse, Rat0.2KE:2066Altered Signaling Pathways
AOP:561Aromatase induction leading to estrogen receptor alpha activation via increased estradiolUnclassified-Vertebrates0.4KE:2294Plasma estradiol, increased
KE:2251Estradiol availability, increased
AOP:569Decreased DNA methylation of FAM50B/PTCHD3 leading to IQ loss of children via PI3K-Akt pathwayDevelopmental disorder of mental health-0.17KE:2195Increase, CNS Neural cell death

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:12Chronic binding of antagonist to N-methyl-D-aspartate receptors (NMDARs) during brain development leads to neurodegeneration with impairment in learning and memory in agingNervous system disease; Developmental disorder of mental healthWPHA/WNT EndorsedMonkey, Rat, Human, Mouse, Zebrafish0.12KE:352N/A, Neurodegeneration
AOP:139Alkylation of DNA leading to cancer 1Cancer-Homo sapiens, Mus musculus0.25KE:885Increase, Cancer
AOP:212Histone deacetylase inhibition leading to testicular atrophyReproductive system diseaseWPHA/WNT EndorsedRat, Human, Mouse0.17KE:1506Testicular atrophy
AOP:260CYP2E1 activation and formation of protein adducts leading to neurodegenerationNervous system disease-Human0.29KE:1392Oxidative Stress
KE:1514Neurodegeneration
AOP:281Acetylcholinesterase Inhibition Leading to NeurodegenerationNervous system disease-0.1KE:352N/A, Neurodegeneration
AOP:322Alkylation of DNA leading to reduced sperm countReproductive system disease-0.2KE:1757Reduce, Sperm count
AOP:474Succinate dehydrogenase inactivation leads to cancer by promoting EMTCancerUnder DevelopmentHuman and other cells in culture0.2KE:885Increase, Cancer
AOP:505Reactive Oxygen Species (ROS) formation leads to cancer via inflammation pathwayCancer-Human, Mouse, Rat0.4KE:1392Oxidative Stress
KE:885Increase, Cancer
AOP:513Reactive Oxygen (ROS) formation leads to cancer via Peroxisome proliferation-activated receptor (PPAR) pathwayCancer-Human, Mouse, Rat0.2KE:885Increase, Cancer
AOP:534Succinate dehydrogenase (SDH) inhibition leads to cancer through oxidative stressCancer-Vertebrates0.33KE:1392Oxidative Stress
KE:885Increase, Cancer
AOP:546Succinate dehydrogenase inactivation leads to cancer through hypoxic-like mechanismsCancer-Human and other cells in culture0.2KE:885Increase, Cancer

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:27Cholestatic Liver Injury induced by Inhibition of the Bile Salt Export Pump (ABCB11)Gastrointestinal system diseaseUnder DevelopmentHumans0.25KE:41Inhibition, Bile Salt Export Pump (ABCB11)
KE:288Activation of specific nuclear receptors, Transcriptional change
AOP:209Perturbation of cholesterol and glutathione homeostasis leading to hepatotoxicity: Integrated multi-OMICS approach for building AOPGastrointestinal system disease-0.25KE:1289Perturbation of cholesterol
KE:1286Down Regulation, GSS and GSTs gene
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:431Increased tumor necrosis factor (TNF) leading to increased risk of gestational diabetes mellitus (GDM)Inherited metabolic disorder-Human0.2KE:1950Increase, TNF
AOP:472DNA adduct formation leading to kidney failureUrinary system disease-0.11KE:1392Oxidative Stress

No associated AOPs with Level of Relevance 5

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