Promoter Polymorphisms of the Interferon-α Receptor Gene and Development of Interferon-Induced Depressive Symptoms in Patients with Chronic Hepatitis C: Preliminary FindingsYoshida K. · Alagbe O. · Wang X. · Woolwine B. · Thornbury M. · Raison C.L. · Miller A.H.
aDepartment of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, Ga., USA; bDepartment of Psychiatry, Akita University School of Medicine, Akita, Japan
Background: Interferon (IFN)-α treatment frequently induces depression, which can impair quality of life and reduce treatment adherence. Defining relevant risk factors for IFN-α-induced depression is essential for designing preventative treatment strategies. Objective: The purpose of the present study was to determine whether promoter polymorphisms of –408C/T, –3C/T and GT repeat dinucleotide microsatellite in the IFN-α/β receptor 1 (IFNAR1) gene are associated with the development of IFN-induced depression. Method: Fifty patients with chronic hepatitis C were treated with pegylated IFN α-2b plus a standard or weight-based dose of ribavirin. Severity of depression was assessed using the Zung Self-Rating Depression Scale (SDS) at baseline and at 4, 8, 12 and 24 weeks of treatment. Result: The baseline to maximum difference in the SDS index score of neurovegetative/somatic symptoms was higher in patients with the 5/14 genotype of the GT repeat dinucleotide microsatellite polymorphism than in those patients with other genotypes (p = 0.0084). Conclusion: This preliminary result suggests that the promoter GT repeat dinucleotide microsatellite polymorphism of the IFNAR1 gene may represent a risk factor for the development of depressive symptoms during IFN-α therapy for hepatitis C and other conditions.
Keizo Yoshida, MD, PhD
Department of Psychiatry
Akita University School of Medicine, 1-1-1 Hondo
Akita 010-8543 (Japan)
Tel. +81 18 884 6122, Fax +81 18 884 6445, E-Mail firstname.lastname@example.org
Published online: June 29, 2005
Number of Print Pages : 7
Number of Figures : 6, Number of Tables : 3, Number of References : 21
Neuropsychobiology (International Journal of Experimental and Clinical Research in Biological Psychiatry, Pharmacopsychiatry, Biological Psychology/Pharmacopsychology and Pharmacoelectroencephalography)
Vol. 52, No. 2, Year 2005 (Cover Date: Released August 2005)
Journal Editor: Strik, W. (Bern)
ISSN: 0302–282X (print), 1423–0224 (Online)
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