Correlation of BDNF Blood Levels with Interoceptive Awareness and Maturity Fears in Anorexia and Bulimia Nervosa Patients

Overview

Journal J Neural Transm (Vienna)

Specialties Neurology
Physiology

Date 2010 Mar 3

PMID 20195875

Citations 7

Authors

J M Mercader

F Fernandez-Aranda

Monica Gratacos

Zaida Aguera

Laura Forcano

Marta Ribases

Cynthia Villarejo

Xavier Estivill

Affiliations

Soon will be listed here.

Abstract

Association studies and rodent models suggest a major role for BDNF (brain-derived neurotrophic factor) in feeding regulation. Altered BDNF blood levels have been associated with eating disorders (ED) and their related psychopathological traits. Since the influence of BDNF on self-reported eating disorder inventory scores (EDI) has not been tested, we investigated the correlation of EDI scales with BDNF plasma levels. BDNF levels were measured by (ELISA), and the EDI questionnaire was administered in a total of 81 ED patients. The relationship between BDNF levels and EDI scores was calculated using a general linear model. After correcting for multiple testing, BDNF plasma levels negatively correlated with the EDI total score (R (2) = 0.26; p = 4.09 x 10(-4)), interoceptive awareness (R (2) = 0.26; p = 1.96 x 10(-4)), and maturity fears (R (2) = 0.13; p = 6.92 x 10(-4)). When subdividing according to the main diagnoses, interoceptive awareness presented significant correlations with BDNF blood levels in both the anorexia nervosa (R (2) = 0.33, p = 0.0026) and bulimia nervosa groups (R (2) = 0.10; p = 0.008). Our data suggest that BDNF levels may influence the severity of the ED by modulating the associated psychopathology, in particular through the impairment of interoceptive awareness.

Citing Articles

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Can Interoception Improve the Pragmatic Search for Biomarkers in Psychiatry?.

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