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Abstract Title:

Effects of sodium fluoride on reproductive function in female rats.

Abstract Source:

Food Chem Toxicol. 2013 Feb 28. Epub 2013 Feb 28. PMID: 23459146

Abstract Author(s):

Yongjiang Zhou, Hailing Zhang, Junlin He, Xuemei Chen, Yubing Ding, Yingxiong Wang Xueqing Liu

Article Affiliation:

Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, PR China.

Abstract:

The aim of this study was to investigate the effects of sodium fluoride (NaF) on female reproductive function and examine the morphology of the ovaries and uteri of rats exposed to NaF. Eighty female Sprague-Dawley (SD) rats were divided randomly into four groups of twenty: one control group and three NaF treated groups. The three NaF treated groups received 100, 150, and 200 ppm, respectively, of NaF for 6 months via their drinking water, while the control group (GC) received distilled water. The levels of follicle-stimulating hormone (FSH), luteinizing hormone (LH), testosterone (T), progesterone (P) and estradiol (E2) were measured using an enzyme-linked immunosorbent assay. Pathomorphological evaluation of the uteri and ovaries was conducted after staining with hematoxylin-eosin and immunohistochemistry. The rate of successful pregnancy in the NaF-treated groups declined in a dose-dependent manner. The concentration of reproductive hormones was significantly lower in the three NaF-treated groups, and the endometrium was damaged. The maturation of follicles was inhibited. In addition, the total number of follicles of all types was significantly lower in the NaF-treated groups. These results suggest that female reproductive function is inhibited by NaF and that exposure to NaF causes ovarian and uterine structural damage. NaF may thus significantly reduce the fertility of female rats.

Study Type : Animal Study

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