Aim: To explore the possible effect of the deleted in azoospermia (DAZ) copy cluster deletion on spermatogenesis in the Chinese population, the deletion of the azoospermia factor c (AZFc) region was analyzed in 3...Aim: To explore the possible effect of the deleted in azoospermia (DAZ) copy cluster deletion on spermatogenesis in the Chinese population, the deletion of the azoospermia factor c (AZFc) region was analyzed in 346 normozoospermic men. Methods: Three DAZ single nucleotide variant loci and seven AZFc-specific sequence-tagged sites were examined with polymerase chain reaction (PCR)-restriction fragment length polymorphism and routine PCR. Results: Five (1.4%) of the normozoospermic men were found to have deletion of grlgr-DAZ1/DAZ2. None of the men were found to have b2/b4--entire DAZ deletion. Conclusion: The presence of grlgr-DAZ1/DAZ2 deletion in five men with normozoospermia suggests that this deletion per se may not be sufficient for spermatogenic impairment in Chinese men. (Asian J Androl 2006 Mar; 8: 183-187)展开更多
基金the National High Technology Research and Development Program (863 Program, China, grant numbers 2002BA711A08 and 2004AA216090) National Natural Science Foundation of China (grant number 30371491)+1 种基金 Foundation of Population and Family Planning Committee, Sichuan Province, China (grant number 200149) the China Medical Board Foundation.
文摘Aim: To explore the possible effect of the deleted in azoospermia (DAZ) copy cluster deletion on spermatogenesis in the Chinese population, the deletion of the azoospermia factor c (AZFc) region was analyzed in 346 normozoospermic men. Methods: Three DAZ single nucleotide variant loci and seven AZFc-specific sequence-tagged sites were examined with polymerase chain reaction (PCR)-restriction fragment length polymorphism and routine PCR. Results: Five (1.4%) of the normozoospermic men were found to have deletion of grlgr-DAZ1/DAZ2. None of the men were found to have b2/b4--entire DAZ deletion. Conclusion: The presence of grlgr-DAZ1/DAZ2 deletion in five men with normozoospermia suggests that this deletion per se may not be sufficient for spermatogenic impairment in Chinese men. (Asian J Androl 2006 Mar; 8: 183-187)