title: The concentration of pyroglutamic acid (2-pyrrolidone-5-carboxylic acid) in normal and psoriatic epidermis, determined on a microgram scale by gas chromatography.
mesh_terms: D000596:Amino Acids / Q000378:metabolism*; D002146:Bony Callus / Q000378:metabolism; D002849:Chromatography, Gas; D002852:Chromatography, Ion Exchange; D006801:Humans; D007057:Ichthyosis / Q000378:metabolism; D013058:Mass Spectrometry; D008722:Methods; D008832:Microchemistry; D011565:Psoriasis / Q000378:metabolism*; D011760:Pyrrolidinones / Q000378:metabolism*; D011761:Pyrrolidonecarboxylic Acid / Q000378:metabolism; D012867:Skin / Q000378:metabolism*
chemical_list: D000596:Amino Acids; D011760:Pyrrolidinones; D011761:Pyrrolidonecarboxylic Acid