RT Journal Article SR Electronic A1 Jirsová, Zuzana A1 Kučera, Tomáš A1 Martínek, Jindřich A1 Liška, František A1 Křenová, Drahomíra A1 Křen, Vladimír T1 ALTERED SPERMATOGENESIS IN THE HYPODACTYLOUS RATS JF Biomedical papers YR 2004 VO 148 IS 2 SP 213 OP 215 DO 10.5507/bp.2004.042 UL https://biomed.papers.upol.cz/artkey/bio-200402-0023.php AB Germinal epithelium of seminiferous tubules in adult, infertile hypodactylous males displays significant reduction in the number of germ-line cells. Detection of apoptosis in the germ-line cells during postnatal differentiation was performed to elucidate the mechanism of the decreased number of germ cells in the testes of adult rats. Evaluation of DNA fragmentation and expression of activated caspase-3 in germ cells did not confirm marked germ cell death during the onset of spermatogenesis as a main cause of significant reduction of germ cells in Hd/Hd testes of adult males. The primary cause of spermatogenesis deffect seems to be rather associated with a disorder in the cell cycle regulation and interrelation of germ-line cells with Sertoli cells.