کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4420643 1618982 2012 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Alfa-Lipoic acid protects testosterone secretion pathway and sperm quality against 4-tert-octylphenol induced reproductive toxicity
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Alfa-Lipoic acid protects testosterone secretion pathway and sperm quality against 4-tert-octylphenol induced reproductive toxicity
چکیده انگلیسی

The protective effect of α-lipoic acid (LA) (50 mg/kg bw) against 4-tert-octylphenol (OP) (50 mg/kg bw) induced reproductive toxicity in male rats was studied. LA was injected 1 h prior to OP administration three times a week. OP caused significant increase in oxidative stress in hypothalamus and epididymal sperm, disturbed hormonal levels in serum, decreased sperm quality, increased DNA fragmentation and loss of 35 and 95 kDa proteins in sperm, as well as elevated proliferating index in testis. LA protected against oxidative stress through promoting the levels of glutathione and glutathione-S-transferase in hypothalamus and sperm. In addition, LA prevented the decrease in testosterone, dehydroepiandrosterone sulfate, 3β-hydroxysteroid dehydrogenase, and inhibited the elevations in sex-hormone-binding globulin levels and showed normal sperm quality. LA modulated proliferation of germ cell, protected against DNA fragmentation and maintained membrane protein organization in the sperm. In conclusion, LA normalized oxidative stress and protected testosterone synthesis pathway across hypothalamus-testicular axis and sperm quality indicating its defensive influence against OP-induced oxidative reproductive dysfunction in male rats.


► Effect of Lipoic acid on octylphenol induced reproductive toxicity was investigated.
► LA prevented oxidative injury in hypothalamus and epididymal sperm in OP treated rats.
► Lipoic acid controlled testosterone synthesis pathway & sperm production and quality.
► It protected DNA and protein organization in sperm against OP-induced oxidative stress.
► Lipoic acid protected the reproductive function against endocrine disrupting chemical.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecotoxicology and Environmental Safety - Volume 81, 1 July 2012, Pages 76–83
نویسندگان
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