Octamethylcyclotetrasiloxane


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:27Cholestatic Liver Injury induced by Inhibition of the Bile Salt Export Pump (ABCB11)Gastrointestinal system diseaseUnder DevelopmentHumans0.12KE:288Activation of specific nuclear receptors, Transcriptional change
AOP:63Cyclooxygenase inhibition leading to reproductive dysfunctionReproductive system disease-Goldfish, Human, Mouse, Rat0.2KE:488Decrease, Ovulation
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:112Increased dopaminergic activity leading to endometrial adenocarcinomas (in Wistar rat)Reproductive system disease; Cancer-Rattus norvegicus0.33KE:747Decreased, Prolactin
KE:111Agonism, Estrogen receptor
AOP:126Alpha-noradrenergic antagonism leads to reduced fecundity via delayed ovulationUnclassified-0.15KE:10059Decreased LH surge for 24 hours
KE:531Decreased, LH Surge
AOP:167Early-life estrogen receptor activity leading to endometrial carcinoma in the mouse.Reproductive system disease; Cancer-Mouse, Homo sapiens0.14KE:1065Activation, estrogen receptor alpha
AOP:212Histone deacetylase inhibition leading to testicular atrophyReproductive system diseaseWPHA/WNT EndorsedRat, Human, Mouse0.17KE:1505Cell cycle, disrupted
AOP:309Luteinizing hormone receptor antagonism leading to reproductive dysfunctionUnclassified-Fish0.14KE:1695Impaired ovulation
AOP:321Reduced environmental pH leading to thinner shells in Mytilus edulisUnclassified-0.09KE:592Reduced, survival
AOP:331Excessive reactive oxygen species leading to growth inhibition via oxidative DNA damage and reduced cell proliferationUnclassified-Daphnia magna, Daphnia middendorffiana, Daphnia pulex, Daphnia pulicaria, Daphnia parvula0.17KE:1505Cell cycle, disrupted
AOP:332Excessive reactive oxygen species leading to growth inhibition via lipid peroxidation and reduced cell proliferationUnclassified-0.2KE:1505Cell cycle, disrupted
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:112Antagonism, Estrogen receptor
AOP:465Alcohol dehydrogenase leading to reproductive dysfunctionUnclassified-0.12KE:748Increased, Estrogen receptor (ER) activity
AOP:535Binding and activation of GPER leading to learning and memory impairmentsDevelopmental disorder of mental health-Mouse, Human0.11KE:2233Decreased, ERαβ heterodimers
AOP:564DBDPE-induced inhibition of mitochondrial complex Ⅰ leading to population decline via neurotoxicity and metabotoxicity.Unclassified-Zebrafish0.09KE:2301Abnormal, Behavior

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:6Antagonist binding to PPARα leading to body-weight lossSymptomWPHA/WNT EndorsedMus musculus, Homo sapiens, Pimephales promelas, Colinus virginianus, Rattus norvegicus0.12KE:864Decreased, Body Weight
AOP:21Aryl hydrocarbon receptor activation leading to early life stage mortality, via increased COX-2UnclassifiedWPHA/WNT EndorsedZebrafish, Medaka, Gallus gallus0.2KE:947Increase, Early Life Stage Mortality
AOP:42Inhibition of Thyroperoxidase and Subsequent Adverse Neurodevelopmental Outcomes in MammalsCognitive disorderWPHA/WNT EndorsedHuman, Rat, Mouse0.12KE:402Cognitive function, decreased
AOP:91Sodium channel inhibition leading to reduced survivalUnclassified-Medaka, Gammarus pulex, Hydra0.17KE:592Reduced, survival
AOP:95Ether-a-go-go (ERG) voltage-gated potassium channel inhibition leading to reduced survivalUnclassified-0.17KE:592Reduced, survival
AOP:99Histamine (H2) receptor antagonism leading to reduced survivalUnclassified-Zebrafish0.14KE:636Decreased, survival
AOP:134Sodium Iodide Symporter (NIS) Inhibition and Subsequent Adverse Neurodevelopmental Outcomes in MammalsCognitive disorder-Rat, Homo sapiens0.11KE:402Cognitive function, decreased
AOP:150Aryl hydrocarbon receptor activation leading to early life stage mortality, via reduced VEGFUnclassifiedWPHA/WNT EndorsedChicken, Zebrafish, Mouse, Rattus norvegicus0.14KE:947Increase, Early Life Stage Mortality
AOP:242Inhibition of lysyl oxidase leading to enhanced chronic fish toxicityUnclassified-Fish0.12KE:636Decreased, survival
AOP:300Thyroid Receptor Antagonism and Subsequent Adverse Neurodevelopmental Outcomes in MammalsCognitive disorderUnder DevelopmentHuman, Mouse0.2KE:402Cognitive function, decreased
AOP:323PPARalpha Agonism Leading to Decreased Viable Offspring via Decreased 11-KetotestosteroneUnclassified-Teleost fish0.17KE:2147Decreased, Viable Offspring
AOP:405Organo-Phosphate Chemicals induced inhibition of AChE leading to impaired cognitive functionCognitive disorder-Rattus norvegicus, Mus musculus, Homo sapiens0.2KE:402Cognitive function, decreased
AOP:442Binding to voltage gate sodium channels during development leads to cognitive impairmentCognitive disorderUnder ReviewRattus norvegicus, Mouse, Humans0.14KE:402Cognitive function, decreased
AOP:455Aryl hydrocarbon receptor activation leading to early life stage mortality via sox9 repression induced impeded craniofacial developmentMusculoskeletal system diseaseUnder ReviewZebrafish, Mouse, Human, Sebastiscus marmoratus, Salmo salar, Chicken0.17KE:947Increase, Early Life Stage Mortality
AOP:456Aryl hydrocarbon receptor activation leading to early life stage mortality via sox9 repression induced cardiovascular toxicityUnclassifiedUnder ReviewZebrafish, Mouse, Human, Chicken0.17KE:947Increase, Early Life Stage Mortality
AOP:458AhR activation in the liver leading to Subsequent Adverse Neurodevelopmental Outcomes in MammalsCognitive disorder-Rat, Mouse, Monkey, Human0.12KE:402Cognitive function, decreased
AOP:459AhR activation in the thyroid leading to Subsequent Adverse Neurodevelopmental Outcomes in MammalsCognitive disorder-Human, Mouse, Rat0.11KE:402Cognitive function, decreased
AOP:485Thyroid hormone antagonism leading to impaired oligodendrocyte maturation during development and subsequent decreased cognitionCognitive disorder-Human0.14KE:402Cognitive function, decreased
AOP:486Binding to the extracellular protein laminin leading to decreased cognitive functionCognitive disorder-Human0.14KE:402Cognitive function, decreased
AOP:488Increased reactive oxygen species production leading to decreased cognitive functionCognitive disorder-Human0.14KE:402Cognitive function, decreased
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
AOP:521Essential element imbalance leads to reproductive failure via oxidative stressUnclassified-Murinae gen. sp.0.14KE:2147Decreased, Viable Offspring
AOP:561Aromatase induction leading to estrogen receptor alpha activation via increased estradiolUnclassified-Vertebrates0.6KE:2294Plasma estradiol, increased
KE: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:8Upregulation of Thyroid Hormone Catabolism via Activation of Hepatic Nuclear Receptors, and Subsequent Adverse Neurodevelopmental Outcomes in MammalsNervous system diseaseUnder DevelopmentRat0.11KE:239Activation, Pregnane-X receptor, NR1l2
AOP:30Estrogen receptor antagonism leading to reproductive dysfunctionUnclassifiedUnder ReviewZebra danio, Fathead minnow, Medaka0.17KE:112Antagonism, Estrogen receptor
AOP:60NR1I2 (Pregnane X Receptor, PXR) activation leading to hepatic steatosisGastrointestinal system disease; Inherited metabolic disorder-0.08KE:245Activation, PXR/SXR
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, Mice0.22KE:1046Suppression, Estrogen receptor (ER) activity
KE:1973Increased, estrogens
AOP:445Estrogen Receptor Alpha Agonism leads to Impaired ReproductionReproductive system disease-0.25KE:1065Activation, estrogen receptor alpha
KE:1989Impaired, Oocyte maturation and ovulation
AOP:493ERa inactivation alters AT expansion and functions and leads to insulin resistance and metabolically unhealthy obesityAcquired metabolic disease-Mus musculus, Homo sapiens0.1KE:2126Estrogen receptor alpha inactivation
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:2126Estrogen receptor alpha inactivation
AOP:503Activation of uterine estrogen receptor-alfa leading to endometrial adenocarcinoma, via epigenetic modulationReproductive system disease; CancerUnder ReviewHuman, Mouse0.17KE:1065Activation, estrogen receptor alpha
AOP:517Pregnane X Receptor (PXR) activation leads to liver steatosisGastrointestinal system disease; Inherited metabolic disorder-Vertebrates0.2KE:239Activation, Pregnane-X receptor, NR1l2
AOP:520Retinoic acid receptor agonism during neurodevelopment leading to impaired learning and memoryDevelopmental disorder of mental health-Mouse, Rat, Human0.4KE:2204Altered brain morphology
KE:2201Agonism, Retinoic acid receptor
AOP:523Retinoic acid receptor agonism during neurodevelopment leading to microcephalyCongenital nervous system abnormality; Nervous system disease-0.2KE:2201Agonism, Retinoic acid receptor
AOP:532Retinoic acid receptor agonism during cerebellar development leading to impaired locomotor functionUnclassified-0.4KE:2230Cerebellar hypoplasia
KE:2201Agonism, Retinoic acid receptor
AOP:536Estrogen receptor agonism leading to reduced survival and population growth due to renal failureUnclassified-0.17KE:111Agonism, Estrogen receptor
AOP:537Estrogen receptor agonism leads to reduced fecundity via increased vitellogenin in the liverUnclassified-0.2KE:111Agonism, Estrogen receptor
AOP:545Activation, Pregnane-X receptor, NR1l2 leads to increased plasma low-density lipoprotein (LDL) cholesterol via increased cholesterol synthesisUnclassified-Mammals0.2KE:239Activation, Pregnane-X receptor, NR1l2
AOP:548Activation, Pregnane-X receptor, NR1l2 leads to increased plasma low-density lipoprotein (LDL) cholesterol via increased PCSK9 protein expressionUnclassified-Mammals0.2KE:239Activation, Pregnane-X receptor, NR1l2

No associated AOPs with Level of Relevance 5

DISCLAIMER

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.