PMID- 15820412 OWN - NLM STAT- MEDLINE DCOM- 20050608 LR - 20220311 IS - 0924-977X (Print) IS - 0924-977X (Linking) VI - 15 IP - 3 DP - 2005 May TI - Urinary excretion of biopyrrins, oxidative metabolites of bilirubin, increases in patients with psychiatric disorders. PG - 249-52 AB - Several authors have suggested that psychological stress induces the production of reactive oxygen species (ROS). Several studies have supported the idea that bilirubin exerts antioxidative effects in vivo, and it was reported psychological stress provokes bilirubin oxidation in vivo [Yamaguchi T., Shioji I., Sugimoto A., Yamaoka M., 2002. Psychological stress increases bilirubin metabolites in human urine. Biochem. and Biophys. Res. Commun. 293, 517-520]. We investigated whether the concentration of bilirubin oxidative metabolites (biopyrrins) is increased in urine from patients with psychiatric disorders. The concentration of biopyrrins in urine of 25 patients with psychiatric disorders (schizophrenia, 15; depression, 10) was compared with 96 healthy volunteers. The concentrations of biopyrrins, as measured by enzyme-linked immunosorbent assay, were normalized to the urinary concentration of creatinine. The concentration of biopyrrins in patients with psychiatric disorders (schizophrenia and depression) was significantly higher than that of healthy volunteers. In schizophrenia, biopyrrins levels correlated with scores of the Brief Psychiatric Rating Scale (BPRS), and in depression, biopyrrins levels correlated with scores of the Hamilton Depression Rating Scale (HAM-D). These finding suggest that psychotic states are associated with an increase in the oxidative metabolites of bilirubin in human urine. FAU - Miyaoka, Tsuyoshi AU - Miyaoka T AD - Department of Psychiatry, Shimane University School of Medicine, 89-1 Enyacho, Izumo 693-8501, Japan. miyanyan@med.shimane-u.ac.jp FAU - Yasukawa, Rei AU - Yasukawa R FAU - Yasuda, Hideaki AU - Yasuda H FAU - Shimizu, Maiko AU - Shimizu M FAU - Mizuno, Soichi AU - Mizuno S FAU - Sukegawa, Tsuruhei AU - Sukegawa T FAU - Inagaki, Takuji AU - Inagaki T FAU - Horiguchi, Jun AU - Horiguchi J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20050125 PL - Netherlands TA - Eur Neuropsychopharmacol JT - European neuropsychopharmacology : the journal of the European College of Neuropsychopharmacology JID - 9111390 RN - 0 (Biomarkers) RN - 0 (Reactive Oxygen Species) RN - RFM9X3LJ49 (Bilirubin) SB - IM MH - Adult MH - Bilirubin/*urine MH - Biomarkers/urine MH - Enzyme-Linked Immunosorbent Assay MH - Female MH - Humans MH - Male MH - Mental Disorders/*urine MH - Oxidation-Reduction MH - Oxidative Stress/physiology MH - Psychiatric Status Rating Scales MH - Reactive Oxygen Species MH - Schizophrenia/urine MH - Stress, Psychological/psychology/urine EDAT- 2005/04/12 09:00 MHDA- 2005/06/09 09:00 CRDT- 2005/04/12 09:00 PHST- 2004/07/20 00:00 [received] PHST- 2004/11/17 00:00 [revised] PHST- 2004/11/17 00:00 [accepted] PHST- 2005/04/12 09:00 [pubmed] PHST- 2005/06/09 09:00 [medline] PHST- 2005/04/12 09:00 [entrez] AID - S0924-977X(04)00194-4 [pii] AID - 10.1016/j.euroneuro.2004.11.002 [doi] PST - ppublish SO - Eur Neuropsychopharmacol. 2005 May;15(3):249-52. doi: 10.1016/j.euroneuro.2004.11.002. Epub 2005 Jan 25.