本周发布的有关老鼠卵巢的研究可能会给尚无子女的高龄妇女带来希望。已从成年老鼠的卵巢内分离出了能产生新卵的细胞。这一发现支持了早先有关哺乳动物卵巢可以终身产生卵细胞的提法,也有可能粉碎关于女性卵细胞生来数量有限的定论。有关研究人员甚至确定出一种分子,它能促进这些细胞的活动,使老鼠产生比正常数量多1倍的囊状卵泡。如果这点也适用于人类,那么该化学物质可能会给那些卵细胞数量偏少的妇女提供一种突破性疗法,比如那些癌症幸存者,或者年近绝 This week’s study on mouse ovaries may offer hope to older women who have no children. Cells that produce new eggs have been isolated from the ovaries of adult mice. This finding supports the earlier notion that mammalian ovaries produce egg cells for life and that it is also possible to crush conclusions about the limited number of female egg cells that are born. Researchers have even identified a molecule that promotes the activity of these cells, giving mice 1 folds more than normal. If this applies to humans as well, the chemical may provide breakthrough treatments to women with fewer oocytes, such as those survivors of cancer,