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BPA Exposure From Plastics Can Raise Male Testosterone Levels

by Tanya Thomas on August 27, 2010 at 10:13 AM Men�s Health News

In a large population study, for the first time, scientists have identified changes in sex hormones associated with BPA exposure in men, .

BPA Exposure From Plastics Can Raise Male Testosterone Levels

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An international group of researchers led by the Peninsula Medical School and the University of Exeter analysed data from the InCHIANTI study, an Italian population sample.

The team measured the amount of BPA excreted per day in urine samples. 715 adults aged between 20 and 74 years were studied.

The study aimed to measure the daily BPA loads excreted by adults, and to examine statistical associations between the amount of BPA exposure and serum oestrogen and testosterone concentrations.

The average BPA daily exposure level in this European study population (over 5 micrograms per day) was slightly higher than recent comparable estimates for the USA population.

The study found that higher BPA exposure was statistically associated with endocrine changes in men, specifically small increases in levels of testosterone in the blood.

BPA has a similar molecular structure to oestrogen and does cause some disruption of sex hormone signalling in laboratory animals, but this is the first large human study to suggest that it may have similar effects in adults at 'background' exposure levels.

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BPA Exposure From Plastics Can Raise Male Testosterone Levels

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