The male infertility is to blame one gene

Conducted in three countries, the study found that one in four men have a mutant gene, because of which the stronger sex is more difficult to have children.

Up to a quarter of all men in the world are victims of special   Genetic defect , Because of which their chances of successful fatherhood reduced. Researchers found that in the sperm of these men there is a lack of protective protein that helps the sperm to reach the egg. DEFB126 protein not only helps in the passage of the female reproductive tract, but also protects the sperm from the woman's immune system attacks.

Without this protein, scientists believe men will take much more time and effort in order to make his partner pregnant. The study, which allowed to make such a conclusion, was conducted in the US, UK and China. The results help to explain the significant number of cases male infertility   worldwide.

"In 70% of cases male infertility   you can not call it because of insufficient sperm count and quality, - says study author Professor Gary Cherry of the University of California at Davis. - Test for handicapped DEFB126 can help infertility clinics to decide whether or not to pass through the method of couples ICSI - intracytoplasmic sperm injection. The method involves the injection of sperm directly into the egg. "

Scientists can not yet understand how a genetic defect Directly affects fertility in men could become so prevalent. In general, the quality, the male sperm semen loses much of monkeys and other mammals. But since people tend to create a long-term monogamous relationships, the quality of sperm is not critical.

Pregnancy and Gynecology

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