Article
Sperm selection in natural conception: what can we learn from Mother Nature to improve assisted reproduction outcomes?
19 Sept 2015
Abstract excerpt
BACKGROUND: In natural conception only a few sperm cells reach the ampulla or the site of fertilization. This population is a selected group of cells since only motile cells can pass through cervical mucus and gain initial entry into the female reproductive tract. In animals, some studies indicate that the sperm selected by the reproductive tract and recovered from the uterus and the oviducts have higher...
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