title: Two patterns of neutral steroid conversion in the feces of normal North Americans.
mesh_terms: D000328:Adult; D000368:Aged; D002776:Cholestanes / Q000378:metabolism*; D002782:Cholestenes / Q000032:analysis / Q000378:metabolism; D002784:Cholesterol / Q000032:analysis / Q000378:metabolism; D002849:Chromatography, Gas; D005243:Feces / Q000032:analysis*; D005260:Female; D006801:Humans; D006914:Hydroxysteroids / Q000032:analysis / Q000378:metabolism; D007413:Intestinal Mucosa / Q000378:metabolism*; D007664:Ketosteroids / Q000032:analysis / Q000378:metabolism; D008297:Male; D008875:Middle Aged; D009656:North America; D010840:Phytosterols / Q000032:analysis / Q000378:metabolism; D012855:Sitosterols / Q000032:analysis / Q000378:metabolism; D013261:Sterols / Q000032:analysis / Q000378:metabolism
chemical_list: D002776:Cholestanes; D002782:Cholestenes; D006914:Hydroxysteroids; D007664:Ketosteroids; D010840:Phytosterols; D012855:Sitosterols; D013261:Sterols; D002784:Cholesterol