Trends in puberty timing in humans and environmental modifiers

Jorma Toppari, Anders Juul

102 Citationer (Scopus)

Abstract

Secular trends in timing of puberty appear to continue although under-nutrition has not been any longer a limiting factor for pubertal development. Now obesity and other environmental reasons have been suspected to cause this trend, and endocrine disrupting chemicals have become into focus as possible contributors. Epidemiological studies on endocrine disrupters are still scarce and show only weak associations between exposures and timing of puberty. Since genetic background explains 50-80% of variability in the timing of puberty, it is not surprising that the observed environmental effects are rather modest when individual exposures are assessed. Despite that, some exposures have been reported to be associated to early (e.g., polybrominated biphenyls) or delayed (e.g., lead) puberty. Here we shortly review the available data on recent trends in timing of puberty and the possible role of endocrine disrupters.
OriginalsprogEngelsk
TidsskriftMolecular and Cellular Endocrinology
Vol/bind324
Udgave nummer1-2
Sider (fra-til)39-44
Antal sider6
ISSN0303-7207
DOI
StatusUdgivet - 5 aug. 2010

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