Volume 6, Issue 2 (Spring 2020)                   Caspian.J.Neurol.Sci 2020, 6(2): 84-93 | Back to browse issues page


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Hoveyda S, Khalatbari J, Peymani J, Ahadi H. Symptom Dimensions and Brain-Derived Neurotrophic Factor Val66Met Polymorphism in Obsessive-compulsive Disorder. Caspian.J.Neurol.Sci. 2020; 6 (2) :84-93
URL: http://cjns.gums.ac.ir/article-1-325-en.html
1- Department of Health Psychology, Karaj Branch, Islamic Azad University, Karaj, Iran
2- Department of Psychology, Islamic Azad University, Tonekabon Branch, Tonekabon, Iran
3- Department of Psychology, Karaj Branch, Islamic Azad University, Karaj, Iran
Abstract:   (282 Views)
Background: Obsessive-Compulsive Disorder (OCD) is a serious neuropsychiatric disorder. The
clinical prominence of the OCD symptoms dimensions and Brain-Derived Neurotrophic Factor
(BDNF) Val66Met polymorphism are of significant importance.
Objectives: The present study aimed to investigate the symptom dimensions and BDNF val66Met
polymorphism genotype in Iranian patients with OCD.
Materials and Methods: A total of 83 patients diagnosed with OCD according to the Diagnostic
and Statistical Manual of Mental Disorders, 5th Edition (DSM5) criteria, and 83 matched controls
were included this case-control study. The Yale-Brown Obsessive Compulsive Scale (Y-BOCS)
was used to investigate symptom dimensions. In addition, BDNF val66Met polymorphism was
genotyped using Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCRRFLP)
method.
Results: The obtained data indicated that the most prevalent obsession was contamination (62.6%)
and the most prevalent compulsion was cleanliness (69.8%). Furthermore, there was a significant
relationship between the genotypes of BDNF val66Met polymorphism in OCD (P<0.01). Besides,
carrying the” T” allele confers increased the risk for the presence of OCD [χ2=4.7, P=0.003; OR
(95%) 1.93 (1.24-2.99)].
Conclusion: The symptoms dimensions of OCD in the Iranian sample were similar to other
populations. Moreover, the findings suggested an association between BDNF val66Met
polymorphism genotype and OCD in the explored Iranian sample. The inheritance hypothesis for
the TT genotype was the recessive model.
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Type of Study: Research | Subject: Special
Received: 2020/08/25 | Accepted: 2020/06/12 | Published: 2020/06/12

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