Abstract
The pathogenesis of anorexia nervosa (AN) is controversial. A retrospective case series was studied to investigate the post-viral onset of AN. Four consecutive in-patients with severe restrictive AN spontaneously volunteered histories of 'glandular fever'-like illnesses immediately before the onset of their eating disorder. This association has not previously been described. Possible pathogenic pathways include both non-specific and specific viral disruptions in central homeostasis, particularly involving corticotrophin-releasing hormone (CRH) regulation. Such mechanisms are speculative, but biologically and historically plausible.
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