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Association between the COMT Gene and Obsessive Compulsive Disorder: A Case-Control Study

Association between the COMT Gene and Obsessive Compulsive Disorder: A Case-Control Study

Javeria1, Masroor Ellahi Babar1,2,*, Akhtar Ali2, Asif Nadeem1, Abdul Wajid1, Sajjad Ali Shah3, Sadaf Rashid4, Muhammad Wasim

1University of Veterinary and Animal Sciences, Lahore, Pakistan
2Virtual University of Pakistan, Lahore, Pakistan
3Bacha Khan University, Charsadha, KPK, Pakistan
4Sir Ganga Ram Hospital, Lahore, Pakistan

*         Corresponding author: masroor.ellahi@vu.edu.pk

ABSTRACT
This studyaimedto find out the genetic variations in Catechol O Methyl transferase (COMT) gene and association of these genes with obsessive compulsive disorder (OCD) in the Pakistani Patients. We selected OCD patients (n=100) following the Diagnostic Statistical Manual-IV (DSM-IV) criteria and controls (n=120) from Sir Ganga Ram Hospital and Panjab Institute of Mental Health, Lahore from August 2011 to January 2014. During the sample collection the factors like age/period, employment status and marital status were considered after informed consent. We found one single base change G>C at c.745 resulting in a nonsynonymous change p.E249Q in theCOMT gene. In-silico analysis predicted it to be damaging and disease causing. Screening of case and control group data showed no deviation from Hardy-Weinberg equilibrium with p-value 0.879 and 0.32, respectively. There was no significant difference in age (p-value 0.081), employment status (p-value 0.34) and matrimonial status (p-value 0.28) but there was a significant difference in their education (p-value 0.0002). The prevalence of C allele was 13.5% in disease, 5.83% in controls and found significant with p-value 0.007. These findings suggest that c.G745C in COMT gene has a significant association and a possible role in the OCD development in Pakistani patients.

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Pakistan Journal of Zoology (Associated Journals)

October

Vol. 49, Iss. 5, Pages 1547-1936

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