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Lack of association between the 5HT2A receptor polymorphism (T102C) and unipolar affective disorder in a multicentric European study.

par Oswald, Pierre ;Souery, Daniel ;Massat, Isabelle ;Del-Favero, Jurgen;Linotte, Sylvie ;Papadimitriou, George;Dikeos, Dimitris;Kaneva, Radka Petrova;Milanova, V;Oruc, L;Ivezic, Sladjana;Serretti, A;Lilli, R;Van Broeckhoven, Christine;Mendlewicz, Julien
Référence European neuropsychopharmacology, 13, 5, page (365-368)
Publication Publié, 2003-10

Article révisé par les pairs

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Résumé :

We report here a case-control association study with T102C polymorphism in the serotonin 2A receptor gene (HTR2A) in patients affected by unipolar affective disorder (UPAD) and in controls. A total of 284 subjects were genotyped (142 UPAD and 142 controls). All subjects were interviewed using standard diagnostic interviews and matched. A homogenous population of unipolar patients with suicidal attempt was identified. Conditional logistic regression was applied. No association of the HTR2A polymorphism was found in the overall sample of 142 UPAD-control pairs regarding allele and genotype frequencies (P=0.36 and P=0.52 respectively) and homo-heterozygote distributions (P=0.91). This study confirms, in a multicentric European sample, the earlier observations that the T102C HTR2A polymorphism is not associated with UPAD. Nevertheless, a type 2 statistical error cannot be excluded. Therefore, to exclude the implication of HTR2A in UPAD, this result must be replicated in larger samples and in other populations using the transmission disequilibrium test and different polymorphisms around HTR2A.