Antiandrogens as environmental endocrine disruptors. 1998

W R Kelce, and L E Gray, and E M Wilson
Reproductive Toxicology Division, National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, Research Triangle Park, NC 27711, USA. wkelce@med.unc.edu

Steroid hormone receptors control fundamental events in embryonic development and sex differentiation through their function as ligand-inducible transcription factors. The consequences of disrupting these processes can be especially profound during development due to the crucial role hormones play in controlling transient and irreversible developmental processes. Several environmental chemicals, including metabolites of the fungicide vinclozolin and the pesticide DDT, disrupt male reproductive development and function by inhibiting androgen receptor mediated events. A variety of in vitro and in vivo approaches have been used to determine the molecular basis of environmental antiandrogen toxicity. These chemicals commonly bind androgen receptor with moderate affinity and act as antagonists by inhibiting transcription of androgen dependent genes.

UI MeSH Term Description Entries
D008297 Male Males
D011944 Receptors, Androgen Proteins, generally found in the CYTOPLASM, that specifically bind ANDROGENS and mediate their cellular actions. The complex of the androgen and receptor migrates to the CELL NUCLEUS where it induces transcription of specific segments of DNA. Androgen Receptors,5 alpha-Dihydrotestosterone Receptor,Androgen Receptor,Dihydrotestosterone Receptors,Receptor, Testosterone,Receptors, Androgens,Receptors, Dihydrotestosterone,Receptors, Stanolone,Stanolone Receptor,Testosterone Receptor,5 alpha Dihydrotestosterone Receptor,Androgens Receptors,Receptor, 5 alpha-Dihydrotestosterone,Receptor, Androgen,Receptor, Stanolone,Stanolone Receptors,alpha-Dihydrotestosterone Receptor, 5
D004785 Environmental Pollutants Substances or energies, for example heat or light, which when introduced into the air, water, or land threaten life or health of individuals or ECOSYSTEMS. Environmental Pollutant,Pollutant,Pollutants,Pollutants, Environmental,Pollutant, Environmental
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000726 Androgen Antagonists Compounds which inhibit or antagonize the biosynthesis or actions of androgens. Androgen Antagonist,Antiandrogen,Antiandrogens,Anti-Androgen Effect,Anti-Androgen Effects,Antiandrogen Effect,Antiandrogen Effects,Antagonist, Androgen,Antagonists, Androgen,Anti Androgen Effect,Anti Androgen Effects,Effect, Anti-Androgen,Effect, Antiandrogen,Effects, Anti-Androgen,Effects, Antiandrogen
D000728 Androgens Compounds that interact with ANDROGEN RECEPTORS in target tissues to bring about the effects similar to those of TESTOSTERONE. Depending on the target tissues, androgenic effects can be on SEX DIFFERENTIATION; male reproductive organs, SPERMATOGENESIS; secondary male SEX CHARACTERISTICS; LIBIDO; development of muscle mass, strength, and power. Androgen,Androgen Receptor Agonist,Androgen Effect,Androgen Effects,Androgen Receptor Agonists,Androgenic Agents,Androgenic Compounds,Agents, Androgenic,Agonist, Androgen Receptor,Agonists, Androgen Receptor,Compounds, Androgenic,Effect, Androgen,Effects, Androgen,Receptor Agonist, Androgen,Receptor Agonists, Androgen
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012733 Sex Differentiation The process in developing sex- or gender-specific tissue, organ, or function after SEX DETERMINATION PROCESSES have set the sex of the GONADS. Major areas of sex differentiation occur in the reproductive tract (GENITALIA) and the brain. Differentiation, Sex,Sexual Differentiation,Differentiation, Sexual
D059002 Androgen Receptor Antagonists Compounds that bind to and inhibit the activation of ANDROGEN RECEPTORS. Androgen Receptor Antagonist,Antagonist, Androgen Receptor,Antagonists, Androgen Receptor,Receptor Antagonist, Androgen,Receptor Antagonists, Androgen

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