Aug 13, 2011

Vitamin D deficiency in girls can cause early menstruation

/ On : 8:14 PM
GladChild: The girl who get early menstruation (menarche) tends to have health and psychosocial problems in adolescents. Sometimes menstruation is too early to make girls have difficulty in relationships with peers because it is considered precocious.

Previous research has shown that girls who get early menstruate have a higher risk of cardio metabolic disease and cancer, especially breast cancer when she was an adult.

But a recent study found links between low vitamin D with early menstruation in adolescents. The result, girls who have a risk of low vitamin D levels were twice as likely to experience menstruation compared with girls who have low vitamin D sufficient.

Worldwide, there has been a decline in age of first menstruation or menarche over the years, said Eduardo Villamor, professor of Epidemiology University of Michigan School of Public Health as reported esciencenews on Sunday August 14, 2011.

At first he suspected factors environment was the cause due to genetic factors that trigger puberty has not changed. But we learned a little about the triggers of puberty from an environmental perspective. If we study the causes of decline in age of first menstruation, we may be able to develop interventions to prevent early menarche, said Villamor.

Previous studies have suggested that slower menarche experienced by girls who live near the equator compared to girls living in northern countries. Incidentally, girls in northern countries may have low levels of vitamin D because exposure to limited sunlight in winter.

In that study found, 57 percent of girls in the group of vitamin D deficiency reached menarche during the study. While there are groups of vitamin D-sufficient as much as 23 percent. In terms of age, women of low vitamin D experienced menarche when the average age was 11.8 years, while in other groups around the age of 12.6 years.

The difference is quite substantial 10 months because 10 months is not long, at that age, many things happened quickly in the body of a young girl, said Villamor. Although the results suggest a link between vitamin D and menarche but have not found a causal relationship.

The study, conducted the University of Michigan School Public Health measured levels of vitamin D in the blood of 242 girls aged 5-12 years in Bogota, Colombia. The girls are monitored for 30 months.


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