title: Letter: Reduced amounts of pyroglutamic acid in scales from psoriatic plaques.
mesh_terms: D000596:Amino Acids / Q000378:metabolism*; D002146:Bony Callus / Q000032:analysis; D002849:Chromatography, Gas; D006801:Humans; D011565:Psoriasis / Q000378:metabolism* / Q000473:pathology; D011760:Pyrrolidinones / Q000032:analysis*; D011761:Pyrrolidonecarboxylic Acid / Q000378:metabolism; D012867:Skin / Q000378:metabolism
chemical_list: D000596:Amino Acids; D011760:Pyrrolidinones; D011761:Pyrrolidonecarboxylic Acid