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Naturwissenschaften

, Volume 94, Issue 7, pp 607–611 | Cite as

Suppression of male reproduction in rats after exposure to sodium fluoride during early stages of development

  • P. Sreedhar Reddy
  • T. Pushpalatha
  • P. Sreenivasula ReddyEmail author
Short Communication

Abstract

Sodium fluoride (NaF), a widespread natural pollutant was given to sperm-positive female rats throughout gestation and lactation at a dose of 4.5 and 9.0 ppm via drinking water. The neonates were allowed to grow up to 90 days on tap water, and then sperm parameters, testicular steroidogenic marker enzyme activity levels, and circulatory hormone levels were studied. The sperm count, sperm motility, sperm coiling (hypoosmotic swelling test), and sperm viability were decreased in experimental rats when compared with controls. The activity levels of testicular steroidogenic marker enzymes (3β hydroxysteroid dehydrogenase and 17β hydroxysteroid dehydrogenase) were significantly decreased in experimental animals indicating decreased steroidogenesis. The serum testosterone, follicle stimulating hormone and luteinizing hormone levels were also significantly altered in experimental animals. Our data indicate that exposure to NaF during gestation and lactation affects male reproduction in adult rats by decreasing spermatogenesis and steroidogenesis.

Keywords

Sodium fluoride Sperm analysis Gestation and lactation 3β-HSD and 17β-HSD activity levels Serum testosterone 

Notes

Acknowledgement

The authors are grateful to the Head of the Department of Biotechnology, S.V. University, Tirupati, India for the encouragement. We thank Prof. K.V.S. Sarma for the statistical analysis of data, Mr. S. Umasankar for maintaining the rat colony in the Department.

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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • P. Sreedhar Reddy
    • 1
  • T. Pushpalatha
    • 1
  • P. Sreenivasula Reddy
    • 1
    Email author
  1. 1.Department of BiotechnologyS.V. UniversityTirupatiIndia

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