Clarified genetic mechanisms of sexual maturity in women

Scientists have figured out which genes have a great effect on the date menarche is the first menstrual bleeding, signals the willingness of the woman's body for pregnancy.

The results of the study are presented in the journal Nature, and its content briefly press-release of the Cambridge Institute.

Scientists from 188 institutions studied the DNA 182416 white women, incorporated into other works, and found 123 genetic variants associated with menarche. The main conclusion: at the date 1 menstruation have a great influence imprinted genes - genes, which varies based on whether the father or the mother gave their child.

1st menstruation may come in 8 years, and may 13, and it depends not only on the state of the body and diet girls, but also from genes. Date menarche is inherited indicator, and with genetic position he was associated with a high risk of the completeness, type 2 diabetes, cardiovascular disease and breast cancer.

But much more researchers were amazed that 6 of 123 "genes menarche" are imprinted areas of the genome. Therefore, 1 of the parents has a stronger impact on its maturation. For the first time, scientists have demonstrated that genomic imprinting manages the development of the body after birth. Previously found only the impact of these genes in intrauterine fetal development.

sections: Society