Abstract
An improved method for separation and quantitation of sulfated neutral and acidic steroids in human feces was developed. The procedure consists of separation of sulfated steroids on Sephadex LH-20 and hydrolysis by cholylglycine hydrolase followed by quantitation and identification of the trimethylsilylether derivatives by gas-liquid chromatography and gas-liquid chromatography-mass spectroscopy. Using this procedure, we detected no sulfated bile acids in human feces. However, sulfated cholesterol was detected in the sulfated bile acid fraction obtained from human fecal extracts. Analysis showed that cholesterol sulfate comprised 12.3, 11.2, and 31.0% of the total neutral sterol fraction in the three fecal samples. Using our procedures, cholesterol sulfate and bile acid sulfates in a biological mixture can be quantitated and identified when they are present.
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