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Acetylcholine mediated vasodilatation in the microcirculation of patients with chronic fatigue syndrome.

Authors
  • Spence, V A
  • Khan, F
  • Kennedy, G
  • Abbot, N C
  • Belch, J J F
Type
Published Article
Journal
Prostaglandins Leukotrienes and Essential Fatty Acids
Publisher
Elsevier
Publication Date
Apr 01, 2004
Volume
70
Issue
4
Pages
403–407
Identifiers
PMID: 15041034
Source
Medline
License
Unknown

Abstract

The aetiology of chronic fatigue syndrome (CFS) remains controversial and a number of hypotheses have been put forward to explain it. Research into the condition is hindered by the considerable heterogeneity seen across patients but several reports have highlighted disturbances to cholinergic mechanisms in terms of central nervous system activity, neuromuscular function and autoantibodies to muscarinic cholinergic receptors. This paper examines an altogether separate function for acetylcholine and that is its role as an important and generalized vasodilator. Most diseases are accompanied by a blunted response to acetylcholine but the opposite is true for CFS. Such sensitivity is normally associated with physical training so the finding in CFS is anomalous and may well be relevant to vascular symptoms that characterise many patients. There are several mechanisms that might lead to ACh endothelial sensitivity in CFS patients and various experiments have been designed to unravel the enigma. These are reported here.

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