Yan F, Chen Y, Zuo Z, Chen Y, Yang Z, Wang C. Effects of tributyltin on epididymal function and sperm maturation in mice.
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2009;
28:19-24. [PMID:
21783977 DOI:
10.1016/j.etap.2009.01.011]
[Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2008] [Revised: 01/22/2009] [Accepted: 01/29/2009] [Indexed: 05/31/2023]
Abstract
The effects of tributyltin (TBT) on sperm parameters and epididymal function were investigated following oral doses of 0.5, 5 and 50μg/kg every 3 days for 45 days to male KM mouse. The TBT-treated groups showed a significant decrease in sperm counts and a significant increase in sperm abnormality both in a dose-dependent manner. The expression of matrilysin (MMP7) transcript in epididymis of mice exposed to TBT was significantly decreased in 5 and 50μg/kg group. There was a dose-dependent decline trend in the acid phosphatase activity, which somewhat relates with the TBT-induced increase in sperm abnormality. Acrosin and lactate dehydrogenase-X isoenzyme (LDH-X) activities from the cauda epididymal spermatozoa showed a dose-dependent decrease in the TBT groups. The result indicates a suppression of essential sperm maturational processes that precede the penetration of the oocyte by the sperm, such as capacitation and acrosome reaction. These results suggest that TBT could cause a spermatotoxic effects, the decline of sperm count and quality caused by TBT suggests that this chemical could impair fertility in animals.
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