PMID- 21823139 OWN - NLM STAT- MEDLINE DCOM- 20111212 LR - 20220309 IS - 1098-108X (Electronic) IS - 0276-3478 (Linking) VI - 44 IP - 6 DP - 2011 Sep TI - Changes of orexin A plasma levels in girls with anorexia nervosa during eight weeks of realimentation. PG - 547-52 LID - 10.1002/eat.20857 [doi] AB - OBJECTIVE: Orexin A (OXA) is a hypothalamic neuropeptide involved in regulation of food intake and nutritional status. There are multiple disturbances of neuropeptide signaling described in girls with anorexia nervosa (AN), but OXA levels have not been addressed in this population to date. Therefore, we analyzed OXA levels of AN girls in this study. METHOD: OXA (radioimmunoassay/RIA/method), leptin, insulinlike growth factor-1 (IGF-1), and insulinlike growth factor-1 binding protein-3 (IGFBP-3) levels were measured before and after 8 weeks of realimentation in 36 girls with AN and in 14 healthy controls (control group: CG). RESULTS: Average weight increased significantly in AN during the study (p < .0001), while plasma levels of OXA decreased (before realimentation: 56.2 +/- 2.4 pg/ml; after realimentation: 47.5 +/- 1.4 pg/ml; p = .0025). OXA levels before realimentation differed from levels in the CG (47.15 +/- 2.6 pg/ml, p = .034), but not afterward. We did not find any correlation between OXA and age, height, weight, BMI; or IGF-1, IGFBP-3, and leptin levels. DISCUSSION: OXA levels in untreated AN patients differ significantly from healthy subjects and decrease during realimentation. These findings indicate that OXA may be involved in the nutritional regulation of malnourished children and adolescents. CI - Copyright (c) 2010 Wiley Periodicals, Inc. FAU - Bronsky, Jiri AU - Bronsky J AD - Department of Pediatrics, Second Medical Faculty, Charles University and University Hospital Motol, Prague, Czech Republic. bronsky@email.cz FAU - Nedvidkova, Jara AU - Nedvidkova J FAU - Krasnicanova, Hana AU - Krasnicanova H FAU - Vesela, Marie AU - Vesela M FAU - Schmidtova, Jana AU - Schmidtova J FAU - Koutek, Jiri AU - Koutek J FAU - Kellermayer, Richard AU - Kellermayer R FAU - Chada, Martin AU - Chada M FAU - Kabelka, Zdenek AU - Kabelka Z FAU - Hrdlicka, Michal AU - Hrdlicka M FAU - Nevoral, Jiri AU - Nevoral J FAU - Prusa, Richard AU - Prusa R LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20101026 PL - United States TA - Int J Eat Disord JT - The International journal of eating disorders JID - 8111226 RN - 0 (HCRT protein, human) RN - 0 (Insulin-Like Growth Factor Binding Protein 3) RN - 0 (Intracellular Signaling Peptides and Proteins) RN - 0 (Leptin) RN - 0 (Neuropeptides) RN - 0 (Orexins) RN - 67763-96-6 (Insulin-Like Growth Factor I) SB - IM MH - Adolescent MH - Anorexia Nervosa/*blood/therapy MH - Body Weight/*physiology MH - Eating/physiology MH - Female MH - Humans MH - Insulin-Like Growth Factor Binding Protein 3/blood MH - Insulin-Like Growth Factor I/metabolism MH - Intracellular Signaling Peptides and Proteins/*blood MH - Leptin/blood MH - Neuropeptides/*blood MH - Nutritional Status MH - Orexins EDAT- 2011/08/09 06:00 MHDA- 2011/12/14 06:00 CRDT- 2011/08/09 06:00 PHST- 2010/06/27 00:00 [accepted] PHST- 2011/08/09 06:00 [entrez] PHST- 2011/08/09 06:00 [pubmed] PHST- 2011/12/14 06:00 [medline] AID - 10.1002/eat.20857 [doi] PST - ppublish SO - Int J Eat Disord. 2011 Sep;44(6):547-52. doi: 10.1002/eat.20857. Epub 2010 Oct 26.