Journal of Applied and Natural Science 4(2):247-251(2012)
Histopathological alterations in testicular tissue of male rats exposed to arsenic
Reema Pachnanda and Shiv Pal Singh
PG Department of Zoology, D.B.S. (P.G.) College, Dehradun, 248001 (Uttarakhand), INDIA *Corresponding author. E-mail: email@example.com Received: April 3, 2012; Revised received: July 15, 2012; Accepted: October 3, 2012
Abstract : The present study was designed to investigate the adverse effect of arsenic on testicular tissue of Swiss albino male rats. Sodium arsenite was administered to adult male rats by gavage at the doses 1, 2 and 3 mg/kg body weight for 30 days. After the treatment, the testis were processed for histopathological observations. Sodium arsenite caused remarkable reduction in testicular weight (P<0.05), while the body weight of experimental animals were reduced but not significantly (P<0.05). Histological evaluation revealed dose-dependent, gradual destruction in histoarchitecture of testicular tissue. Sodium arsenite exposure caused complete arrest of spermatogenesis with disfigured seminiferous tubules in the testes .The lumens of the tubules were devoid of spermatids and were in places filled with cellular debris. The germinal epithelium was distorted. At places interstitial odema was also evident. Sertoli and Leydig cells were damaged. Along with structural alterations, fertility rate in experimental animals was significantly decreased at higher doses i.e. 2 and 3 mg/kg, as 100% infertility was observed. After withdrawal of the treatment over a period of 30 days, recovery was observed in low dose groups as few female rats became pregnant. The study concluded that exposure of arsenic causes testicular toxi City in male albino rat.
Keywords : Arsenic, Fertility test, Histopathology, Reversibility test, Swiss albino rats, Testicular tissue