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Related Experiment Videos

Bulimia nervosa and autoimmunity.

M Corcos1, F Atger, P Lévy-Soussan

  • 1Department of Psychiatry (Adolescents and Young Adults), Institute Mutualiste Montsouris, Paris, France. jeammet@ext.jussieu.fr

Psychiatry Research
|October 8, 1999
PubMed
Summary
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This study found lower levels of IgG anti-serotonin and IgG anti-dopamine autoantibodies in individuals with bulimia nervosa compared to controls. These findings suggest a potential role for autoantibodies in the neurobiology of bulimia nervosa.

Area of Science:

  • Neuroimmunology
  • Psychiatry
  • Biochemistry

Background:

  • Autoantibodies targeting neurotransmitters like dopamine and serotonin are implicated in bulimia nervosa.
  • These neurotransmitters are crucial for appetite, mood, and stress regulation, key aspects of bulimia nervosa.
  • The study investigates the potential involvement of these autoantibodies in serotonergic dysfunction and cerebral homeostasis.

Purpose of the Study:

  • To investigate the levels of autoantibodies against dopamine and serotonin in females with bulimia nervosa.
  • To explore the relationship between these autoantibodies and the neurobiological underpinnings of bulimia nervosa.
  • To determine if autoantibodies play a role in the immune regulation of the central nervous system in bulimia nervosa.

Main Methods:

Related Experiment Videos

  • Enzyme-linked immunosorbent assay (ELISA) was used to measure IgG, IgM, and IgA autoantibodies.
  • The study compared 31 females diagnosed with bulimia nervosa against 10 matched control subjects.
  • Autoantibody activity against dopamine, dopamine-beta-hydroxylase, and serotonin was quantified.

    • Main Results:

    • Significantly lower levels of IgG anti-serotonin and IgG anti-dopamine autoantibodies were observed in the bulimic group compared to controls.
    • A trend towards lower IgM anti-dopamine levels was noted in patients with bulimia nervosa.
    • These findings suggest a potential alteration in the immune response targeting specific brain components in bulimia nervosa.

    Conclusions:

    • Reduced levels of specific IgG autoantibodies against dopamine and serotonin may be characteristic of bulimia nervosa.
    • These autoantibodies could represent a response to 'anti-brain' antibodies or act as cerebral targets.
    • Further research into these autoantibodies may illuminate immunological aspects of brain disturbances in eating disorders.