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Subchronic Effects of Perfluorooctane Sulphonate on the Testicular Morphology and Spermatogenesis in Mice

Subchronic Effects of Perfluorooctane Sulphonate on the Testicular Morphology and Spermatogenesis in Mice

De-Yong Zhang1, Xiao-Lu Xu1,*, Qin Ruan2, Xiu-Ying Shen3 and Yin Lu1

1College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China
2College of Xingzhi, Zhejiang Normal University, Jinhua 321004, China
3College of Biology and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310012, China

*  Corresponding author: xxlzjsru@163.com 

 

ABSTRACT

To determine the subchronic male reproductive toxicity of PFOS, male mice were administrated with a serial dosage of PFOS for 90 days for testicular observation and spermatogenesis evaluation. PFOS ≥ 11 mg/kg (accumulative dosage) resulted in visible histopathological changing in testis, including disorder and vacuolization of spermatogenic cells. Changed testicular organ coefficient (for dosage ≥ 55 mg/kg), decreased sperm concentration (for 110 mg/kg dosage), decreased motility (for 110 mg/kg dosage) and increased sperm malformation (for all of the treated groups) were also confirmed (p<0.05). Sperm malformation showed high sensitivity to PFOS exposure. A sperm malformation percentage, varying from 11.00% to 51.20%, was confirmed for the treated groups. As to various sperm malformation types, curved body type constituted the most proportion. The treated groups showed a curved body malformation percentage varied from 8.00% to 43.5%, due to different PFOS dosage. The observations indicate that subchronic exposure of PFOS can interfere with spermatogenesis process and affect sperm quality in mammals.
 

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Pakistan Journal of Zoology

December

Vol. 51, Iss. 6, Pages 1999-2399

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