
Gas chromatography–mass spectrometry profiling of steroids in urine of patients with acute intermittent porphyria
Keywords: 11β-HSD1, 11β-hydroxysteroid dehydrogenase type 1; 11β-HSD2, 11β-hydroxysteroid dehydrogenase type 2; AIP, acute intermittent porphyria; ALA, aminolevulinic acid; GC/MS, gas chromatography–mass spectrometry; IGF-1, insulin-like growth factor 1; PBG, porph