Friday, August 1, 2008

Post-radiation syndrome as a NO/ONOO(-) cycle, chronic fatigue syndrome-like disease.

Med Hypotheses. 2008 Jul 28. [Epub ahead of print]

Post-radiation syndrome as a NO/ONOO(-) cycle, chronic fatigue syndrome-like disease.

http://www.ncbi.nlm.nih.gov/pubmed/18667279?ordinalpos=1&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum

School of Molecular Biosciences, Washington State University, Pullman, WA 99164-4234, USA.

Post-radiation syndrome is proposed to be chronic fatigue syndrome (CFS) or a chronic fatigue syndrome-like illness, initiated by exposure to ionizing radiation. This view is supported by the nitric oxide/peroxynitrite (NO/ONOO(-)) cycle mechanism, the putative etiologic mechanism for CFS and related illnesses. Ionizing radiation may initiate illness by increasing nitric oxide levels via increased activity of the transcription factor NF-kappaB and consequent increased synthesis of the inducible nitric oxide synthase. Two types of components of the nitric oxide/peroxynitrite cycle have been studied in post-radiation syndrome patients and shown to be elevated. The symptoms and signs of post-radiation syndrome and its chronicity are similar or identical to those of chronic fatigue syndrome and can be explained as being a consequence of nitric oxide/peroxynitrite cycle etiology. While the data available to test this view are limited, it provides for the first time a comprehensive explanation for post-radiation syndrome.

PMID: 18667279 [PubMed - as supplied by publisher]

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