title: Spermatogenetic disorders in adult rats exposed to tributyltin chloride during puberty.
abstract: Adverse effects of tributyltin (TBT) chloride were investigated on the reproductive system in male adult rats as exposed during puberty. Fifty Sprague-Dawley rats at the age of 35 days were assigned to five different groups: negative control receiving vehicle, methyltestosterone (10 mg/kg B.W.), and TBT chloride treatments (5, 10, and 20 mg/kg B.W.). Animals were treated by oral gavage for ten consecutive days and sacrificed at 5 weeks after final treatment. The treatment of TBT chloride at the high dose of 20 mg/kg B.W. significantly decreased homogenization-resistant testicular sperm counts (p<0.05). The TBT chloride treatment at the doses of 10 and 20 mg/kg B.W. also significantly decreased caudal epididymal sperm counts (p<0.01). Some of motion kinematic parameters (motility, mean angular displacement, lateral head displacement, and dance) of sperms retrieved from vasa deference were significantly decreased in rats treated with the TBT chloride at the dose of 20 mg/kg B.W. (p<0.05). These results provide a further evidence that an exposure to TBT chloride during pubertal period in male rats produces spermatogenic disorders characterized by decreasing testicular and epididymal sperm counts and some motion parameters of sperms in the vasa deference.
authors.affiliation: College of Veterinary Medicine and Research Institute of Veterinary Medicine, Chungbuk National University, Cheongju, Japan.
authors.forename: Wook Joon
authors.initials: WJ
authors.lastname: Yu
authors.forename: Beom Jun
authors.initials: BJ
authors.lastname: Lee
authors.forename: Sang Yoon
authors.initials: SY
authors.lastname: Nam
authors.forename: Young Chul
authors.initials: YC
authors.lastname: Kim
authors.forename: Yong Soon
authors.initials: YS
authors.lastname: Lee
authors.forename: Young Won
authors.initials: YW
authors.lastname: Yun
mesh_terms: D000818:Animals; D008297:Male; D008777:Methyltestosterone / Q000494:pharmacology; D051381:Rats; D017207:Rats, Sprague-Dawley; D012741:Sexual Maturation / Q000187:drug effects*; D013076:Sperm Count; D013081:Sperm Motility / Q000187:drug effects / Q000502:physiology; D013091:Spermatogenesis / Q000187:drug effects*; D013094:Spermatozoa / Q000187:drug effects / Q000473:pathology*; D013737:Testis / Q000187:drug effects / Q000473:pathology; D014220:Trialkyltin Compounds / Q000633:toxicity*
chemical_list: D014220:Trialkyltin Compounds; C011559:tributyltin; D008777:Methyltestosterone