The International journal of eating disorders · 2005
The 5HTTLPR polymorphism, psychopathologic symptoms, and platelet [3H-] paroxetine binding in bulimic syndromes.
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Steiger Howard, Joober Ridha, Israël Mimi, Young Simon N, Ng Ying Kin Ng Mien Kwong, Gauvin Lise, Bruce Kenneth R, Joncas Jasmine, Torkaman-Zehi Adam
Аннотация
BACKGROUND: A short (s) allele in the promoter region of the 5-hydroxytryptamine (5-HT) transporter gene (5HTTLPR) has been associated with low transcription of the 5-HT transporter protein, and with clinical manifestations including impulsivity, affective disorder, and bulimia nervosa.
METHODS: We studied implications of the 5HTTLPR s allele for eating symptoms, psychopathologic traits, and platelet [3H-] paroxetine binding in 59 women with bulimia spectrum syndromes.
RESULTS: Compared with those without it, carriers of the s allele of 5HTTLPR showed significantly more affective instability, behavioral impulsivity, interpersonal insecurity, comorbid borderline personality disorder (BPD), and lower density (Bmax) of paroxetine-binding sites.
CONCLUSIONS: Our results suggest that proneness to impulsivity, affective dysregulation, and reduced central 5-HT reuptake may (in part) be codetermined by the 5HTTLPR polymorphism. However, given inconsistent 5HTTLPR expression in different populations, we speculate that we may be observing a phenotype (i.e., eating disorder)-dependent manifestation.
METHODS: We studied implications of the 5HTTLPR s allele for eating symptoms, psychopathologic traits, and platelet [3H-] paroxetine binding in 59 women with bulimia spectrum syndromes.
RESULTS: Compared with those without it, carriers of the s allele of 5HTTLPR showed significantly more affective instability, behavioral impulsivity, interpersonal insecurity, comorbid borderline personality disorder (BPD), and lower density (Bmax) of paroxetine-binding sites.
CONCLUSIONS: Our results suggest that proneness to impulsivity, affective dysregulation, and reduced central 5-HT reuptake may (in part) be codetermined by the 5HTTLPR polymorphism. However, given inconsistent 5HTTLPR expression in different populations, we speculate that we may be observing a phenotype (i.e., eating disorder)-dependent manifestation.