Int. J. Environ. Res. Public Health 2012, 9(5), 1791-1809; doi:10.3390/ijerph9051791
Review

Is Early Puberty Triggered by Catch-Up Growth Following Undernutrition?

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Received: 23 March 2012; in revised form: 19 April 2012 / Accepted: 30 April 2012 / Published: 9 May 2012
(This article belongs to the Special Issue Malnutrition and Public Health)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Undernutrition during fetal and postnatal life is still a major problem in many low- and middle-income countries. Even in high-income countries malnutrition may exist in cases of intrauterine growth retardation, as well as in chronic conditions such as anorexia nervosa and inflammatory bowel disease. Children adopted from developing countries are often chronically malnourished. Nutritional rehabilitation, resulting in catch-up growth, is often complicated by influences originating in fetal life as well as during postnatal growth. This may result in hormonal and metabolic changes as well as alterations in pubertal development. The present review focuses on fetal, postnatal and fetal-postnatal undernutrition and subsequent catch-up growth as well as catch-up growth in relation to pubertal development. Catch-up growth in children can be associated with early puberty following fetal or combined fetal-postnatal undernutrition. However, early puberty does not seem to occur following catch-up growth after isolated postnatal undernutrition. Gonadotropins have been reported to be elevated in prepubertal adopted girls as well as during catch-up growth in animals. Even if other factors may contribute, linear catch-up growth seems to be associated with the timing of pubertal development. The mechanisms behind this are still unknown. Future research may elucidate how to carry out nutritional rehabilitation without risk for early pubertal development.
Keywords: undernutrition; stunting; nutritional rehabilitation; adopted children; catch-up growth; early puberty
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MDPI and ACS Style

Proos, L.; Gustafsson, J. Is Early Puberty Triggered by Catch-Up Growth Following Undernutrition? Int. J. Environ. Res. Public Health 2012, 9, 1791-1809.

AMA Style

Proos L, Gustafsson J. Is Early Puberty Triggered by Catch-Up Growth Following Undernutrition? International Journal of Environmental Research and Public Health. 2012; 9(5):1791-1809.

Chicago/Turabian Style

Proos, Lemm; Gustafsson, Jan. 2012. "Is Early Puberty Triggered by Catch-Up Growth Following Undernutrition?" Int. J. Environ. Res. Public Health 9, no. 5: 1791-1809.

Int. J. Environ. Res. Public Health EISSN 1660-4601 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert