Résumé
Technology platform is an important component of technical innovation of a hospital,and safety of laboratories is a prerequisite for building research hospitals.Proceeding from building a research hospital,this paper conducts in—depth analysis of the problems in the safety management of laboratories,in terms of awareness of safety,structural layout,staffing,routine management,biosafety,medical ethics,etc.,and discusses the strategies for the safety management of laboratories,in hope of providing theoretical support and valuable reference for the safety management of laboratories and the construction of research hospitals.
Résumé
Feeding adult male rats with gossypol acetic acid at a dose of 15 nig/kg/day for 50 days led to infertility. Spermatogenesis and sperm motility were impaired ( table 1 ) . However, testosterone, K+ and Na+ concentsrations in serum and RTF were found to be unchanged (table 2, 3 ) . It suggests that at low antifertility doses gossypol disrupts spermatogenesis in the seminiferous epithelium without affecting testosterone, K+ and Na+ secretion and translation in testis.