High levels of hormones that trigger
sexual maturity associated with a shorter lifespan. Studies have found evidence
that early sexual maturation in women associated with early menopause. In turn,
causes premature menopause age women are shorter.
Scientists at The Jackson Laboratory in the United States had previously found that mice with the hormone levels of IGF1 are lower at the age of 6 months to live longer than other mice. Researchers reported that women who have lower levels of the hormone IGF1 reaches sexual maturity at a slower rate.
"These findings indicate a genetic regulatory process. Mice delayed the process of reproduction can live longer, at least the development of the reproductive hormones are affected by IGF1," said the researcher, Dr. Rong Yuan as reported Science20.com, Wednesday (09/05/2012).
Dr. Yuan explained that in the UK that scientists recently found that high levels of IGF1 hormone and other hormones in young women associated with menstruation earlier age. In his research, Dr. Yuan and his colleagues used a standard biological vaginal patency (PV) as an indicator of sexual maturity in mice.
Investigators sifting through genetic data and the physiological 31 rats of different genes. They found that chromosomes 4 and 16 which controls sexual maturation and age women. The findings indicate that mice derived from wild populations carry a specific gene variant that delay sexual maturation.
Nrip1 researchers identify genes involved in regulating the process of sexual maturation. This gene was also affecting longevity by controlling hormone levels IGF1. The research team concluded that the hormone IGF1 allegedly regulate female sexual maturation and longevity.
Compared with mice that IGF1 levels is high, the mice had higher levels of IGF1 hormone also 9% lower 6% slower progression of her vagina and she was 24% longer. Dr. Yong discovery was published in the journal Proceedings of the National Academy of Sciences.
Researchers still do not know whether the findings in mice can be generalized to humans. However, mice on a lot of things have physiological systems that resemble humans.
Scientists at The Jackson Laboratory in the United States had previously found that mice with the hormone levels of IGF1 are lower at the age of 6 months to live longer than other mice. Researchers reported that women who have lower levels of the hormone IGF1 reaches sexual maturity at a slower rate.
"These findings indicate a genetic regulatory process. Mice delayed the process of reproduction can live longer, at least the development of the reproductive hormones are affected by IGF1," said the researcher, Dr. Rong Yuan as reported Science20.com, Wednesday (09/05/2012).
Dr. Yuan explained that in the UK that scientists recently found that high levels of IGF1 hormone and other hormones in young women associated with menstruation earlier age. In his research, Dr. Yuan and his colleagues used a standard biological vaginal patency (PV) as an indicator of sexual maturity in mice.
Investigators sifting through genetic data and the physiological 31 rats of different genes. They found that chromosomes 4 and 16 which controls sexual maturation and age women. The findings indicate that mice derived from wild populations carry a specific gene variant that delay sexual maturation.
Nrip1 researchers identify genes involved in regulating the process of sexual maturation. This gene was also affecting longevity by controlling hormone levels IGF1. The research team concluded that the hormone IGF1 allegedly regulate female sexual maturation and longevity.
Compared with mice that IGF1 levels is high, the mice had higher levels of IGF1 hormone also 9% lower 6% slower progression of her vagina and she was 24% longer. Dr. Yong discovery was published in the journal Proceedings of the National Academy of Sciences.
Researchers still do not know whether the findings in mice can be generalized to humans. However, mice on a lot of things have physiological systems that resemble humans.
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