Figure 1: General Morphology of the germinal epithelium of wild type adult Sprague-Dawley rats (stained with Hematoxylin and Eosin). (A) Control (B) 100mg/Kg Pb-Acetate (C) Pb-Acetate+Se+Zn and (D) Se+Zn only. Degeneration was most prominent in the lead treatment group; cell proliferation is most prominent in the Sn+Zn treatment group. (‡) represents regions of cell proliferation and (†) represents regions of cellular degeneration, (n) represents normal cells of the epithelium, (BM) basement membrane, arrow head indicates the lumen of the seminiferous tubule (Scale bar is 30μm).