IVF is best done in spring

On the success of in vitro fertilization is influenced by many factors. Brazilian scientists have discovered another - the time of year.

Researchers from Brazil, discovered that the success of vitro fertilization (IVF) depending on the season, which was withdrawn egg. Experts from the Center for artificial insemination in São Paulo conducted a thorough analysis of cytological and biochemical parameters of eggs. 1932 Survey underwent patient who had taken the egg for intracytoplasmic sperm injection. This procedure is a form of IVF.

435 women (22, 5 per cent), this procedure was carried out in the winter. 444 women (23 percent) underwent manipulation of the spring. Accordingly, 469 (24, 2 percent) - summer and 584 (30, 3) - fall. It was found that the rate of successful fertilization was significantly higher when taking eggs in the spring - 73, 5 to 67 percent, 9 percent in the winter and 68, 7 percent in the summer and 69 percent in the fall. Researchers concluded that the success of artificial insemination much higher if carry out the procedure in the spring time. This increases the chances half.

According to study leader Daniel Braga (Daniela Braga), such "seasonal dependence" artificial insemination Likely due to the fact that a high level of natural lighting at this time affects the production of gonadotropin-releasing hormone from the hypothalamus. This substance directs production of sex hormones in the body.

Pregnancy and Gynecology

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