闻香识“男人”

对许多男性而言，“香水”一词听起来更加具有女人味。男人也许会买“除臭剂（deodorant）”和“须后润肤露（aftershave）”等香水，但是那些过于精心包装的小瓶香水或许会刺激男性敏感的自尊。然而，任何制造商都不敢轻视这个占据消费群半壁江山的潜在市场，而且香水制造商正在试图打破男性的沉默。现在它们终于知道该如何做了。     

Absence of oestradiol concentration in cell nuclei of LHRH-immunoreactive neurones

Oestrogen, acting in both the brain and pituitary, has a critical role in regulating the reproductive cycle in most mammals. In the brain, oestrogen regulates the release of luteinizing hormone-releasing hormone (LHRH) partly through a mechanism that is blocked by inhibitors of DNA-dependent RNA synthesis or protein synthesis. The distributions of oestrogen-concentrating neurones and of LHRH neurones overlap. The present study was undertaken to determine whether genomic effects of oestrogen mediated by nuclear oestradiol concentration include a direct effect on LHRH-containing neurones. During extensive studies in which the immunocytochemical method for localizing LHRH neurones was optimized and made compatible with the autoradiographic method for detecting oestrogen-concentrating neurones, doubly-labelled cells were very rarely seen. This suggests that genomic regulatory effects of oestrogen which depend on nuclear retention are not exerted directly on most LHRH neurones, but rather must be mediated by another class of neurones.