SAN FRANCISCO
— Poor sperm. After swimming tirelessly to find an egg to fertilize, they may
find no place to grab hold, if scientists succeed in creating a new form of
hormone-free contraception.
In a new study, researchers infused mouse cells grown
in the lab with small, customized RNA molecules. These RNAs prevented the cells
from making a protein coating that normally envelops egg cells, the scientists
announced June 11 in San Francisco
at the Beyond Genome conference.
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