title: Effect of acute/subchronic samarium exposure on the concentration, motility, and morphology of sperm in male mice.
abstract: Male ICR mice were orally administered samarium nitrate [Sm(NO3)3] to investigate its effects on sperm concentration and sperm quality. After acute exposure to ≥2880.00 mg/kg Sm(NO3)3 via intragastric gavage, sperm motility and acrosome integrity were decreased, and the sperm malformation percentage was increased (P < 0.05). After subchronic exposure to ≥500.00 mg/L Sm(NO3)3 administered via drinking water for 90 days, relative gonad weight, sperm concentration, and sperm quality significantly decreased (P < 0.05). Sperm malformation also increased after subchronic exposure to Sm, which was found to be the most sensitive index. Sperm head malformation accounted for the largest proportion of all types of sperm malformations evaluated. Of the six different subtypes of head malformation, irregular shape accounted for the largest proportion.
authors.affiliation: College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou, China.
authors.forename: D Y
authors.initials: DY
authors.lastname: Zhang
authors.affiliation: College of Biology and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, China.
authors.forename: X Y
authors.initials: XY
authors.lastname: Shen
authors.affiliation: College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou, China.
authors.forename: X L
authors.initials: XL
authors.lastname: Xu
authors.affiliation: College of Biology and Chemistry, Zhejiang Normal University, Jinhua, China.
authors.forename: Q
authors.initials: Q
authors.lastname: Ruan
authors.affiliation: College of Biology and Chemistry, Zhejiang Normal University, Jinhua, China.
authors.forename: S S
authors.initials: SS
authors.lastname: Hu
authors.affiliation: College of Biology and Chemistry, Zhejiang Normal University, Jinhua, China.
authors.forename: Y Y
authors.initials: YY
authors.lastname: Chen
authors.affiliation: College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou, China.
authors.forename: Z M
authors.initials: ZM
authors.lastname: Wang
mesh_terms: D000177:Acrosome / Q000187:drug effects* / Q000473:pathology; D000818:Animals; D008297:Male; D051379:Mice; D008813:Mice, Inbred ICR; D012493:Samarium / Q000008:administration & dosage / Q000633:toxicity*; D013076:Sperm Count; D013081:Sperm Motility / Q000187:drug effects*
chemical_list: D012493:Samarium