title: Effect of irradiation on testicular cells of opossum.
abstract: Five months old male opossums were exposed  to 5000 rd wholebody 60Co gamma-radiation. Testes tissues from animals sacrificed at 16, 40 and 90 hours post-irradiation and from nonirradiated animales were used for enzymatic and histological studies. Electrophoretic pattern of lactate dehydrogenase and glucose-6-phosphate dehydrogenase was slightly disturbed in early hours in irradiated animals, but it did not persist beyond 40 hours postirradiation. Histological study indicates 31% survival of type A spermatogonia suggesting high radioresistance of testes tissue in comparison to other animals.
mesh_terms: D000818:Animals; D003037:Cobalt Radioisotopes; D005720:Gamma Rays; D005954:Glucosephosphate Dehydrogenase / Q000378:metabolism; D007770:L-Lactate Dehydrogenase / Q000378:metabolism; D008297:Male; D009893:Opossums; D011836:Radiation Tolerance; D013093:Spermatogonia / Q000528:radiation effects*; D013094:Spermatozoa / Q000528:radiation effects*; D013737:Testis / Q000201:enzymology
chemical_list: D003037:Cobalt Radioisotopes; D007770:L-Lactate Dehydrogenase; D005954:Glucosephosphate Dehydrogenase