American doctors cured infertility by lowering cholesterol levels.

Doctors from the Houston Methodist Hospital cured infertility in sterile mice by lowering their cholesterol levels. The results of the experiment may be useful for women with idiopathic infertility - a problem that arose for no clear reason. The scientists injected mice with a protein called serum opacity factor. It reduced cholesterol levels by 40% in three hours. After that, fertility returned to the mice, though only for a while. Now doctors want to conduct clinical trials to study lipid levels in women who are being treated for idiopathic infertility. In the United States, for example, this is one in five women who seek help because of problems with conception.