Reproductive toxicology (Elmsford, N.Y.) · 2005
Toxicological effects of acrylamide on rat testicular gene expression profile.
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Yang Hye-Jin, Lee Sang-Hyun, Jin Yong, Choi Jin-Hyang, Han Dong-Un, Chae Chanhee, Lee Mun-Han, Han Chang-Hoon
Аннотация
Toxicological effects of acrylamide on differential gene expression profile of rat testis were evaluated. Acrylamide induced morphological sperm defects, and decreased sperm concentration in cauda epididymis. Serum testosterone level and Leydig cell viability were also decreased dose-dependently, which resulted in decreased spermatogenesis. Acrylamide-induced histopathological lesions, such as formation of multinucleated giant cells and vacuolation, and numerous apoptotic cells were observed in seminiferous tubules. cDNA microarray analysis revealed that genes related to testicular-functions, apoptosis, cellular redox, cell growth, cell cycle, and nucleic acid-binding were up/down-regulated in testes isolated from acrylamide-treated group (60 mg/kg/day). Acrylamide toxicity appears to increase Leydig cell death and perturb gene expression levels, contributing to sperm defects and various abnormal histopathological lesions including apoptosis in rat testis.