传统观点认为,妇女一生中所拥有的卵子数量是一出生就决定了的,并且随着年龄增长而不断衰老减少。但最近,美国哈佛医学院等机构研究人员却颠覆了这个理论。他们表示,过去曾在实验鼠的卵巢中发现卵原干细胞,利用相同技术,近来发现女性卵巢中也存在这种干细胞。研究人员从卵巢组织中分离出卵原干细胞,在试管中成功培育成了卵母细胞。卵母细胞是卵子形成之前一阶段的细胞形态,可以继续发育成能与精子结合的卵子。实验的卵巢来自6名接 The conventional wisdom is that the number of eggs a woman owns in her lifetime is determined at birth and diminishes as she grows older. But recently, institutional researchers such as Harvard Medical School in the United States have subverted this theory. They said that in the past, egg-derived stem cells were found in the ovaries of experimental mice and using the same technique, it was recently discovered that such stem cells are also present in the ovaries of women. Researchers isolated oogenesis stem cells from ovarian tissue and successfully cultured them into oocytes in vitro. Oocyte is the first stage of the egg before the formation of the cell morphology, can continue to develop into sperm can be combined with the egg. The experimental ovaries from 6 pick