ß-Alanine and ?-aminobutyric acid in chronic fatigue syndrome
2007 (English)In: Clinica Chimica Acta, ISSN 0009-8981, Vol. 376, no 1-2, 23-29 p.Article in journal (Refereed) Published
Background: Due to the occurrence of sleep disturbances and fatigue in chronic fatigue syndrome (CFS), an investigation was performed to examine if there is an abnormal excretion of ?-aminobutyric acid (GABA) and/or its structural analogue ß-alanine in the urine from CFS patients. Both GABA and ß-alanine are inhibitory neurotransmitters in the mammalian central nervous system. Methods: The 24 h urine excretion of GABA and ß-alanine was determined by isotope dilution gas chromatography mass spectrometry in 33 CFS patients and 43 healthy controls. The degree of symptoms in both patients and controls was measured by grading of three typical CFS symptoms using a Visual Analogue Scale. Results: Men had a significantly higher excretion of both ß-alanine and GABA than women. Comparing CFS patients with healthy controls showed no significant difference in excretion of neither ß-alanine nor GABA. No correlation was found between the excretion of ß-alanine or GABA and any of the three characteristic CFS symptoms measured. However, two female and two male CFS patients excreted considerably higher amounts of ß-alanine in their 24 h urine samples than control subjects. Conclusions: Increased excretion of ß-alanine was found in a subgroup of CFS patients, indicating that there may be a link between CFS and ß-alanine in some CFS patients. © 2006 Elsevier B.V. All rights reserved.
Place, publisher, year, edition, pages
2007. Vol. 376, no 1-2, 23-29 p.
ß-Alanine, ?-Aminobutyric acid, Chronic fatigue syndrome, Immunosuppression, Ornithine decarboxylase, Polyamines
Medical and Health Sciences
IdentifiersURN: urn:nbn:se:liu:diva-50013DOI: 10.1016/j.cca.2006.07.004OAI: oai:DiVA.org:liu-50013DiVA: diva2:270909