Study: Female fertility testing can be judged

Pressure by the employment effects of modern marriage and childbearing age, is constantly pushed back, but female fertility decreases with age. Faced with this contradiction, American scientists found a preliminary solution. In the future, women or can be offoxygenribonucleic acid (DNA) test to determine fertility, to determine He Shiyu son.

　　The dilemma
Studies have shown that the ovaries of a newborn baby girl about 1 million to 2 million primordial follicles. Sexual maturity, the primordial follicles in the growth and development through periodic, the final release in the ovulation of a fully developed eggs. Female life can produce a total of about 400 mature eggs.

Number of follicles in women with primary age will be gradually reduced. Adolescent girls has about 400,000 primary follicles, and menopausal women only remaining ovarian follicles within a few hundred. Female ovarian follicle reserve in the amount of direct impact on ovulation.

Most women around age 35, dropped the number of follicles, resulting in reduced fertility. But about 10% of women under 30 years of age experienced a sharp drop in number of follicles in the process ofpremature ovarian failureled to reduced fertility earlier.

Therefore, it should be entrepreneurs who do not know the young woman or the first child care, the use of scientific methods to predict the future fertility as a key decision.

　　Fertility testing
"New Scientist" magazine quoted the United States 4 Research Center for Human Reproduction, the researchers Norbert - Grameen Hull as saying: "By testing more than 18 years of age or 18 young women of the Xchromosome, we can accurately predict whether the fertility of her at an early reduction. "

Study, a total of 316 Grameen Hull female X chromosome arrangement of bases and ovarian follicle reserve in the analysis and comparison of the situation. The results show, X chromosome arrangement of bases and the number of mature eggs in the ovary are closely related. Most women X chromosome base number of occurrences within the CGG is 28 to 33 times. The likelihood of early menopause X chromosome CGG with the increase of the number of bases.

Grameen Hull said, by detecting the X chromosome in the order of bases predicted the future fertility of women, this method was first officially opened in 2010 is expected to clinical application.

Chromosome test results are not normal female hormone levels also need testing to determine the eggs within the ovary loss reserves really too fast.

　　Controversial
Although the Grameen confident Hull on research, but some researchers believe that the number of participants is too small, too short, the results need further proof.

Emory University researcher Stephanie - Sherman said: "He needs to track the participation of women, and only time can prove the accuracy of prediction."

Medical Center Utrecht researchers Frank - Brookman emphasized that low egg reserve of female fertility is generally low, but it does not rule out some low egg reserve still has a strong female fertility.