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Antifertility Efficacy of Testosterone on Male and Female Albino Mice

Antifertility Efficacy of Testosterone on Male and Female Albino Mice

Maha Mostafa1, Sohail Soliman1, Reham I. Mohamed2 and Wael M. El-Sayed1*

1Department of Zoology, Faculty of Science, Ain Shams University, Abbassia 11566, Cairo, Egypt.
2Pesticide Chemistry Department, Chemical Industries Research Institute, National Research Centre, Dokki, Giza, Egypt
 
* Corresponding author: wael_farag@sci.asu.edu.eg, waelelhalawany@hotmail.com

ABSTRACT

One of the approaches to the control of rodent pests is the use of anti-fertility compounds such as synthetic steroids, estrogens, progestins, androgens, chemical compounds, and natural plant extracts. The aim of this approach is to lower the population size of pests by reducing the natality rather than by increasing mortality. Male (20) and female (40) albino mice were orally administered testosterone at 25 mg/kg for 35 days. The males were allowed to mate with females to estimate the fertility index. After the end of treatment, mice were sacrificed, blood was collected for biochemical analysis, and sex organs were dissected out for histological preparations. Administration of testosterone has significantly increased the body weight and decreased the gonad weight in both sexes. It drastically affected the histology of testes and ovaries, causing a reduction in the sperm count and motility with a parallel reduction in the acid phosphatase activity. It also directly reduced the concentration of free testosterone and estradiol in both sexes without any apparent effect on LH or FSH hormones. It increased the total cholesterol in males only and elevated the triacylglycerols and glucose levels in both sexes. The administration of testosterone to males, females, or both reduced the fertility index to zero. The mating success was also reduced from 80 to zero when both the males and females were administered with testosterone. The synthetic testosterone had antifertility effects on both sexes of albino mice and therefore, it could be used in the pest control of mice.

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Pakistan Journal of Zoology

February

Vol. 55, Iss. 1, Pages 1-500

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