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Association between a vasopressin receptor AVPR1A promoter region microsatellite and eating behavior measured by a self‐report questionnaire (Eating Attitudes Test) in a family‐based study of a nonclinical population

Rachel Bachner‐Melman

Department of Psychology, Mount Scopus, Hebrew University, Jerusalem, Israel

Scheinfeld Center of Human Genetics for the Social Sciences, Department of Psychology, Hebrew University, Jerusalem, Israel

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Ada H. Zohar

Department of Psychology and Behavioral Sciences, Ruppin Academic Center, Emek Hefer, Israel

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Yoel Elizur

Department of Psychology, Mount Scopus, Hebrew University, Jerusalem, Israel

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Lubov Nemanov

Sarah Herzog Memorial Hospital, Jerusalem, Israel

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Inga Gritsenko

Sarah Herzog Memorial Hospital, Jerusalem, Israel

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Daphnie Konis

Scheinfeld Center of Human Genetics for the Social Sciences, Department of Psychology, Hebrew University, Jerusalem, Israel

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Richard P. Ebstein

Corresponding Author

E-mail address:ebstein@mscc.huji.ac.il

Scheinfeld Center of Human Genetics for the Social Sciences, Department of Psychology, Hebrew University, Jerusalem, Israel

Sarah Herzog Memorial Hospital, Jerusalem, Israel

Scheinfeld Center of Human Genetics for the Social Sciences, Department of Psychology, Hebrew University, P.O. Box 35300, Jerusalem 91351, Israel
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First published: 19 November 2004
Cited by: 21

Abstract

Objectives

Considerable evidence including twin and family studies suggests that biologic determinants interact with cultural cues in the etiology of anorexia and bulimia nervosa. A gene that makes “biologic sense” in contributing susceptibility to these disorders, and to our knowledge not previously investigated for this phenotype, is the vasopressin receptor (AVPR1A), which we have tested for association with eating pathology.

Methods

We genotyped 280 families with same‐sex siblings for two microsatellites in the promoter region of the AVPR1A gene. Siblings completed the 26‐item Eating Attitudes Test (EAT) and the Drive for Thinness (DT) and Body Dissatisfaction (BD) subscales of the Eating Disorders Inventory (EDI). The Quantitative Transmission Disequilibrium Test program (QTDT), which employs flexible and powerful variance‐components procedures, was used to test for an association between EAT scores and the two AVPR1A promoter region microsatellites, RS1 and RS3.

Results

A significant association (p = .036) was detected between the RS3 microsatellite and EAT scores. The strongest association was between RS3 and the Dieting subscale of the EAT (p = .011). A significant association was also observed between the EDI‐DT and the RS3 microsatellit (p = .0450).

Conclusions

We demonstrate for the first time an association between a microsatellite polymorphism in the AVPR1A promoter region and scores on the EAT as well as with the EDI‐DT. The strongest association was observed between the RS3 microsatellite and the Dieting subscale of the EAT. The relevant phenotype appears to tap severe dietary restriction for weight loss purposes. © 2004 by Wiley Periodicals, Inc. Int J Eat Disord 36: 451–460, 2004.

Number of times cited: 21

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