Abstract: Atypical depression as a secondary symptom in chronic fatigue syndrome

Med Hypotheses. 2003 Jul;61(1):52-5.  Van Hoof E, Cluydts R, De Meirleir K.  Department of Human Physiology, Vrije Universiteit Brussel, Brussel, Belgium

Chronic fatigue syndrome (CFS) has gained prominence since 1988 and a substantial amount of research has been done in this domain. However, it is still regarded as a controversial condition. Moreover, most of the symptoms of CFS itself are non-specific, occurring in many illnesses; some of the symptoms are also common in depression.

Indeed, an area of continued controversy and debate involves the diagnostic overlap between CFS and psychiatric disorders. Through anecdotal evidence, atypical depression appears to be common in CFS. Recent developments in psychobiology underscore the role of the acute phase response and its associated sickness behavior in affective disorders. Thus, we hypothesize that atypical depression is sickness behavior rather than an affective disorder as shown by anecdotal evidence in CFS.

PMID: 12781640 [PubMed – in process]

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