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Enhanced platelet s...
Enhanced platelet serotonin 5-HT2A receptor binding in anorexia nervosa and bulimia nervosa.
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Spigset, O (författare)
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- Andersen, Tonny (författare)
- Umeå universitet,Psykiatri
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Hägg, S (författare)
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visa fler...
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Mjöndal, T (författare)
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visa färre...
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(creator_code:org_t)
- 1999
- 1999
- Engelska.
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Ingår i: European Neuropsychopharmacology. - 0924-977X .- 1873-7862. ; 9:6, s. 469-73
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- Some evidence exists to suggest that serotonin 5-HT2A receptor function is altered in anorexia nervosa and bulimia nervosa. In order to further investigate the 5-HT2A receptor in eating disorders, platelet [3H]lysergic acid diethylamide ([3H]LSD) binding was studied in ten patients with anorexia nervosa, 23 patients with bulimia nervosa and 33 healthy controls. At admission, Bmax for platelet [3H]LSD binding was significantly higher both in the anorexia nervosa group (30.6+/-4.2 fmol/mg protein; mean+/-S.D.) and in the bulimia nervosa group (30.8+/-7.6 fmol/mg protein) than in the control group (23.5+/-6.3 fmol/mg protein; p=0.01 and p=0.003, respectively). Kd was borderline significantly higher among anorexics (median 1.45 nM) and significantly higher among bulimics (median 1.66 nM) than among controls (median 0.95 nM; p=0.05 and 0.003, respectively). The Global Assessment of Functioning score and the body mass index were both significantly negatively correlated to Kd (r=-0.40; p=0.03 and r=-0.41 p=0.03, respectively), but not to Bmax. The present study indicates that patients with anorexia nervosa as well as patients with bulimia nervosa have an enhanced 5-HT2A receptor binding and provides further evidence for a serotonergic dysfunction in eating disorders.
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