title: Semen quality of environmentally exposed human population: the toxicological consequence.
abstract: Human data on the relationship of semen quality with pesticide and metals are mostly inconsistent. The purpose of the study is to confirm the toxicity of organochlorine pesticide β- and γ-hexachlorocyclohexane (HCH), DDE and DDD, and metals lead or cadmium on sperm motility in epidemiological study among fertile and infertile men and to determine whether in vivo and in vitro results are in the same direction. Semen analysis and estimation of the toxicants were done in 60 fertile and 150 infertile men. In the in vitro studies, sperm were exposed to the highest levels of these toxicants found in vivo, as well as five and ten times higher, and to the mixture of all compounds. The study assesses sperm viability and motility for a period ranging between 30 min and 96 h. Epidemiological data showed an inverse correlation of toxicant with sperm motility. In vitro study showed that γ-HCH and lead after 12 h, cadmium after 8 h, and coexposure to toxicants after 6 h of exposure caused significant concentration- and duration-dependent decline in sperm motility. Data of in vitro study were concurrent with epidemiological finding that might be useful in establishing the possible association between exposure and effect of these selected pollutants on sperm motility.
authors.affiliation: Department of Reproductive Biology, All India Institute of Medical Sciences, New Delhi, 110029, India, nirajpant1@gmail.com.
authors.forename: Niraj
authors.initials: N
authors.lastname: Pant
authors.forename: A B
authors.initials: AB
authors.lastname: Pant
authors.forename: P K
authors.initials: PK
authors.lastname: Chaturvedi
authors.forename: M
authors.initials: M
authors.lastname: Shukla
authors.forename: N
authors.initials: N
authors.lastname: Mathur
authors.forename: Y K
authors.initials: YK
authors.lastname: Gupta
authors.forename: D K
authors.initials: DK
authors.lastname: Saxena
mesh_terms: D002104:Cadmium / Q000378:metabolism / Q000633:toxicity; D003633:Dichlorodiphenyl Dichloroethylene / Q000378:metabolism / Q000633:toxicity; D004781:Environmental Exposure / Q000032:analysis* / Q000706:statistics & numerical data; D004785:Environmental Pollutants / Q000378:metabolism / Q000633:toxicity*; D005298:Fertility / Q000502:physiology; D001556:Hexachlorocyclohexane / Q000378:metabolism / Q000633:toxicity; D006801:Humans; D006843:Hydrocarbons, Chlorinated / Q000378:metabolism / Q000633:toxicity*; D007248:Infertility, Male / Q000453:epidemiology / Q000378:metabolism; D007854:Lead / Q000378:metabolism / Q000633:toxicity; D008297:Male; D008670:Metals / Q000378:metabolism / Q000633:toxicity*; D010575:Pesticides / Q000378:metabolism / Q000633:toxicity*; D012661:Semen / Q000187:drug effects; D055101:Semen Analysis; D013081:Sperm Motility / Q000187:drug effects; D013094:Spermatozoa / Q000187:drug effects
chemical_list: D004785:Environmental Pollutants; D006843:Hydrocarbons, Chlorinated; D008670:Metals; D010575:Pesticides; D002104:Cadmium; D007854:Lead; D003633:Dichlorodiphenyl Dichloroethylene; D001556:Hexachlorocyclohexane