Recently scientists have discovered that vitamin D supplements can delay onset of untimely puberty in young girls. The study was presented at The Endocrine Society's 95th Annual Meeting in San Francisco.
Puberty normally begins at the age of 10 years to 14 years in girls while a little later in boys, usually at the age of 12 years to 16 years. In girls, early onset of puberty is diagnosed when sexual growth and development occurs before the age of 8 years whereas in boys it is diagnosed when puberty changes appear before the age of 9 years.
Precocious Puberty - Causes - Symptoms - Diagnosis - Treatment - FAQs
The period of maturation of sexual and physical characteristics is known as puberty and when these bodily changes happen before time it is known as ‘precocious puberty’.
The period of maturation of sexual and physical characteristics is known as puberty and when these bodily changes happen before time it is known as ‘precocious puberty’.
Precocious puberty in girls has been attributed to insufficient levels of vitamin D. The scientists said that the exact association between vitamin D and early onset of puberty is yet unclear.
In order to assess the mechanism, the experts compared the blood levels of vitamin D in girls with normal and early development.
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About 44 percent of girls with precocious development had severe deficiency of vitamin D and 21 percent of girls with normal development reported of vitamin D deficiency.
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The experts used the neuron-stimulating compound called N-methyl-D-aspartate, or NMDA for triggering the neurons that is responsible for liberating gonadotropin-releasing hormone or GnRH.
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Early Puberty In Girls Linked To Psychological Problems, Sexual Abuse
A new study has found that girls hitting puberty early are more likely to have psychological problems and also risk sexual abuse and early pregnancy.
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The lead author Min Sun Kim, MD, PhD, assistant professor at Chonbuk National University Medical School in Jeonju, South Korea mentioned, "If we understand more about the action mechanism of vitamin D on GnRH neuronal activities, we can find a clue to control of precocious puberty using vitamin D or related molecules."
Prof. Min Sun Kim further added, "Our results suggest that vitamin D may inhibit early pubertal onset and/or the rapid progression of puberty, at least in part, through the suppression of NMDA-mediated GnRH neuronal excitation in humans."
Around 110 girls in the age group of 7 to 10 years were enrolled for the study.
Normal age-appropriate development was noted in about seventy five girls while precocious puberty was seen in thirty five girls.
Tanner scale was used for assessing physical development to differentiate precocious development versus normal growth and development.
Kim said that further research was required to find out the actual relationship between vitamin D deficiency and early puberty in girls.
Source-Medindia
