DEDUCT | Database of Endocrine Disrupting chemicals and their Toxicity profiles

Melamine

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:7	Aromatase (Cyp19a1) reduction leading to impaired fertility in adult female	Reproductive system disease; Endocrine system disease; Reproductive system disease	Under Review	Rat, Mouse, Human	0.4	KE:219	Reduction, Plasma 17beta-estradiol concentrations
AOP:7			Under Review	Rat, Mouse, Human	0.4	KE:3	Reduction, 17beta-estradiol synthesis by ovarian granulosa cells
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:23	Androgen receptor agonism leading to reproductive dysfunction (in repeat-spawning fish)	Unclassified	WPHA/WNT Endorsed	Pimephales promelas	0.2	KE:219	Reduction, Plasma 17beta-estradiol concentrations
AOP:23		Unclassified	WPHA/WNT Endorsed	Pimephales promelas	0.2	KE:3	Reduction, 17beta-estradiol synthesis by ovarian granulosa cells
AOP:25	Aromatase inhibition leading to reproductive dysfunction	Unclassified	WPHA/WNT Endorsed	Fathead minnow, Medaka, Zebrafish	0.25	KE:219	Reduction, Plasma 17beta-estradiol concentrations
AOP:25	Aromatase inhibition leading to reproductive dysfunction	Unclassified	WPHA/WNT Endorsed	Fathead minnow, Medaka, Zebrafish	0.25	KE:3	Reduction, 17beta-estradiol synthesis by ovarian granulosa cells
AOP:41	Sustained AhR Activation leading to Rodent Liver Tumours	Cancer; Gastrointestinal system disease	Under Review	Rattus sp. ABTC 42503, Mus sp. 2000082	0.2	KE:853	Changes/Inhibition, Cellular Homeostasis and Apoptosis
AOP:64	Glucocorticoid Receptor (GR) Mediated Adult Leydig Cell Dysfunction Leading to Decreased Male Fertility	Reproductive system disease	-	Rattus norvegicus	0.43	KE:520	Decreased sperm quantity or quality in the adult, Decreased fertility
						KE:496	Increased apoptosis, decreased fetal/adult Leydig Cells
						KE:1690	Decrease, circulating testosterone levels
AOP:77	Nicotinic acetylcholine receptor activation contributes to abnormal foraging and leads to colony death/failure 1	Unclassified	-	Honey bee	0.14	KE:341	Impairment, Learning and memory
AOP:78	Nicotinic acetylcholine receptor activation contributes to abnormal role change within the worker bee caste leading to colony death failure 1	Unclassified	-	Honey bee	0.12	KE:341	Impairment, Learning and memory
AOP:87	Nicotinic acetylcholine receptor activation contributes to abnormal foraging and leads to colony loss/failure	Unclassified	-	Honey bee	0.12	KE:341	Impairment, Learning and memory
AOP:88	Nicotinic acetylcholine receptor activation contributes to abnormal foraging and leads to colony loss/failure via abnormal role change within caste	Unclassified	-	Honey bee	0.14	KE:341	Impairment, Learning and memory
AOP:89	Nicotinic acetylcholine receptor activation followed by desensitization contributes to abnormal foraging and directly leads to colony loss/failure	Unclassified	-	Honey bee	0.12	KE:341	Impairment, Learning and memory
AOP:90	Nicotinic acetylcholine receptor activation contributes to abnormal roll change within the worker bee caste leading to colony loss/failure 2	Unclassified	-	Honey bee	0.12	KE:341	Impairment, Learning and memory
AOP:99	Histamine (H2) receptor antagonism leading to reduced survival	Unclassified	-	Zebrafish	0.14	KE:341	Impairment, Learning and memory
AOP:112	Increased dopaminergic activity leading to endometrial adenocarcinomas (in Wistar rat)	Reproductive system disease; Cancer	-	Rattus norvegicus	0.17	KE:749	Decreased, Progesterone from corpus luteum
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:122	Prolyl hydroxylase inhibition leading to reproductive dysfunction via increased HIF1 heterodimer formation	Unclassified	-	Pimephales promelas	0.2	KE:219	Reduction, Plasma 17beta-estradiol concentrations
AOP:122		Unclassified	-	Pimephales promelas	0.2	KE:3	Reduction, 17beta-estradiol synthesis by ovarian granulosa cells
AOP:123	Unknown MIE leading to reproductive dysfunction via increased HIF-1alpha transcription	Unclassified	-	Pimephales promelas	0.18	KE:219	Reduction, Plasma 17beta-estradiol concentrations
AOP:123		Unclassified	-	Pimephales promelas	0.18	KE:3	Reduction, 17beta-estradiol synthesis by ovarian granulosa cells
AOP:124	HMG-CoA reductase inhibition leading to decreased fertility	Reproductive system disease	-	Rattus rattus	0.17	KE:1690	Decrease, circulating testosterone levels
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: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:271	Inhibition of thyroid peroxidase leading to impaired fertility in fish	Unclassified	Under Development	Fish	0.2	KE:219	Reduction, Plasma 17beta-estradiol concentrations
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:289	Inhibition of 5α-reductase leading to impaired fecundity in female fish	Unclassified	Under Development	Fish	0.17	KE:219	Reduction, Plasma 17beta-estradiol concentrations
AOP:309	Luteinizing hormone receptor antagonism leading to reproductive dysfunction	Unclassified	-	Fish	0.29	KE:1693	Reduction, Plasma progesterone concentration
AOP:309		Unclassified	-	Fish	0.29	KE:1692	Reduction, Progesterone synthesis
AOP:310	Embryonic Activation of the AHR leading to Reproductive failure, via epigenetic down-regulation of GnRHR	Unclassified	-	Zebrafish	0.17	KE:219	Reduction, Plasma 17beta-estradiol concentrations
AOP:310		Unclassified	-	Zebrafish	0.17	KE:3	Reduction, 17beta-estradiol synthesis by ovarian granulosa cells
AOP:346	Aromatase inhibition leads to male-biased sex ratio via impacts on gonad differentiation	Unclassified	WPHA/WNT Endorsed	Zebrafish, Oreochromis niloticus, Chinook salmon, Fathead minnow, European sea bass	0.2	KE:1789	Reduction, 17beta-estradiol synthesis by the undifferentiated gonad
AOP:419	Aryl hydrocarbon receptor activation leading to impaired lung function through P53 toxicity pathway	Respiratory system disease	-		0.25	KE:1262	Apoptosis
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	0.14	KE:1262	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:1097	Occurrence, renal proximal tubular necrosis
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	0.11	KE:1262	Apoptosis
AOP:463	The AOP framwork on silica nanopariticles induced hepatoxicity	Gastrointestinal system disease	-		0.09	KE:1262	Apoptosis
AOP:472	DNA adduct formation leading to kidney failure	Urinary system disease	-		0.11	KE:1097	Occurrence, renal proximal tubular necrosis
AOP:491	Decrease, GLI1/2 target gene expression leads to orofacial clefting	Unclassified	Under Development	Mouse	0.17	KE:1262	Apoptosis
AOP:495	Androgen receptor activation leading to prostate cancer	Reproductive system disease; Cancer	-		0.11	KE:1183	Decreased, Apoptosis (Epithelial Cells)
AOP:496	Androgen receptor agonism leading to reproduction dysfunction （in zebrafish）	Unclassified	-	Zebrafish	0.2	KE:219	Reduction, Plasma 17beta-estradiol concentrations
AOP:496		Unclassified	-	Zebrafish	0.2	KE:1690	Decrease, circulating testosterone levels
AOP:521	Essential element imbalance leads to reproductive failure via oxidative stress	Unclassified	-	Murinae gen. sp.	0.14	KE:2206	Increased, histomorphological alteration of testis
AOP:540	Oxidative Stress in the Fish Ovary Leads to Reproductive Impairment via Reduced Vitellogenin Production	Unclassified	-		0.22	KE:3	Reduction, 17beta-estradiol synthesis by ovarian granulosa cells
AOP:540		Unclassified	-		0.22	KE:1262	Apoptosis
AOP:549	Aromatase inhibition leads to reproductive toxicity (including growth and developmental toxicity) in adult female zebrafish	Unclassified	-		0.12	KE:219	Reduction, Plasma 17beta-estradiol concentrations
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

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: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:341	Impairment, Learning and memory
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:341	Impairment, Learning and memory
AOP:17	Binding 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 memory	Developmental disorder of mental health	WPHA/WNT Endorsed	Rat, Mouse, Human	0.1	KE:341	Impairment, Learning and memory
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:341	Impairment, Learning and memory
AOP:54	Inhibition of Na+/I- symporter (NIS) leads to learning and memory impairment	Developmental disorder of mental health	WPHA/WNT Endorsed	Homo sapiens, Rattus sp.	0.1	KE:341	Impairment, Learning and memory
AOP:63	Cyclooxygenase inhibition leading to reproductive dysfunction	Reproductive system disease	-	Goldfish, Human, Mouse, Rat	0.2	KE:675	Reduced, Reproductive Success
AOP:100	Cyclooxygenase inhibition leading to reproductive dysfunction via inhibition of female spawning behavior	Reproductive system disease	-	Goldfish	0.14	KE:675	Reduced, Reproductive Success
AOP:101	Cyclooxygenase inhibition leading to reproductive dysfunction via inhibition of pheromone release	Reproductive system disease	-	Goldfish	0.14	KE:675	Reduced, Reproductive Success
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:675	Reduced, Reproductive Success
AOP:103	Cyclooxygenase inhibition leading to reproductive dysfunction via interference with spindle assembly checkpoint	Reproductive system disease	-	Goldfish, Human, Rat, Mouse	0.1	KE:675	Reduced, Reproductive Success
AOP:203	5-hydroxytryptamine transporter inhibition leading to decreased reproductive success and population decline	Reproductive system disease	-		0.12	KE:1141	Decreased, Reproductive Success
AOP:205	AOP from chemical insult to cell death	Unclassified	-	Vertebrates	0.17	KE:1262	Apoptosis
AOP:212	Histone deacetylase inhibition leading to testicular atrophy	Reproductive system disease	WPHA/WNT Endorsed	Rat, Human, Mouse	0.33	KE:1506	Testicular atrophy
AOP:212		Reproductive system disease	WPHA/WNT Endorsed	Rat, Human, Mouse	0.33	KE:1262	Apoptosis
AOP:322	Alkylation of DNA leading to reduced sperm count	Reproductive system disease	-		0.2	KE:1757	Reduce, Sperm count
AOP:384	Hyperactivation of ACE/Ang-II/AT1R axis leading to chronic kidney disease	Urinary system disease	-		0.17	KE:1603	Chronic kidney disease
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:341	Impairment, Learning and memory
AOP:483	Deposition of Energy Leading to Learning and Memory Impairment	Developmental disorder of mental health	Under Review	Mouse, Rat, Rabbit, Dog, Pigs, Cow, Human	0.12	KE:341	Impairment, Learning and memory
AOP:490	Co-activation of IP3R and RyR leads to reduced IQ through non-cholinergic mechanisms	Developmental disorder of mental health	-		0.09	KE:341	Impairment, Learning and memory
AOP:498	Increased LCN2/iron complex leading to neurological disorders	Nervous system disease	-	Homo sapiens	0.25	KE:2150	Neurological disorder
AOP:499	Activation of MEK-ERK1/2 leads to deficits in learning and cognition via disrupted neurotransmitter release	Developmental disorder of mental health	-	Rattus norvegicus, Mus musculus, Homo sapiens	0.25	KE:341	Impairment, Learning and memory
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:1262	Apoptosis
AOP:500		Developmental disorder of mental health	-	Rattus norvegicus, Mus musculus, Homo sapiens	0.29	KE:341	Impairment, Learning and memory
AOP:501	Excessive iron accumulation leading to neurological disorders	Nervous system disease	-	Homo sapiens	0.25	KE:2150	Neurological disorder
AOP:520	Retinoic acid receptor agonism during neurodevelopment leading to impaired learning and memory	Developmental disorder of mental health	-	Mouse, Rat, Human	0.2	KE:341	Impairment, Learning and memory
AOP:525	Reduced oligodendrocyte differentiation during neurodevelopment leading to impaired learning and memory	Developmental disorder of mental health	-		0.08	KE:341	Impairment, Learning and memory
AOP:533	Retinoic acid receptor antagonism during neurodevelopment leading to impaired learning and memory	Developmental disorder of mental health	-		0.17	KE:341	Impairment, Learning and memory
AOP:535	Binding and activation of GPER leading to learning and memory impairments	Developmental disorder of mental health	-	Mouse, Human	0.22	KE:1262	Apoptosis
AOP:535		Developmental disorder of mental health	-	Mouse, Human	0.22	KE:341	Impairment, Learning and memory

No associated AOPs with Level of Relevance 3

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.