A study of blood taken from more than 2,200 Americans has linked the presence of perfluorooctanoic acid, or C8, to elevated liver enzymes, an early indicator of liver disease. "Although the potential biological significance between [C8] and liver enzymes is small and sub-clinical in the general U.S. population, our data suggest that it would be prudent to monitor the liver enzymes of people with low exposure to [C8], particularly in subjects who are obese," researchers said in an article published in the American Journal of Gastroenterology.

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