Year : 2015  |  Volume : 57  |  Issue : 3  |  Page : 267--271

Association of single-nucleotide polymorphism of cholecystokinin receptor A gene with schizophrenia in an Eastern Indian population


Jayanta K Rout1, Anindya Dasgupta2, Omprakash Singh3, Ushasi Banerjee2, Anupam Basu4 
1 Department of Biochemistry, R. G. Kar Medical College, Kolkata, West Bengal, India
2 Department of Biochemistry, Calcutta National Medical College, Kolkata, West Bengal, India
3 Department of Psychiatry, N R S Medical College, Kolkata, West Bengal, India
4 Department of Zoology, University of Burdwan, Burdwan, West Bengal, India

Correspondence Address:
Anindya Dasgupta
Department of Biochemistry, Calcutta National Medical College, Kolkata - 700 014, West Bengal
India

Context: Cholecystokinin A receptor (CCK-AR) gene polymorphism is being increasingly reported in schizophrenia. It varies among different population groups but is associated with several complications of schizophrenia. Aims: The present study was undertaken to assess whether the CCK-AR polymorphism is stabilized and is more consistently associated with schizophrenia in an Eastern Indian sub-population. Settings and Design: It was carried out as a cross-sectional, observational, hospital-based study on 95 schizophrenia patients and 138 control subjects selected by the method of convenience. Materials and Methods: Single-nucleotide polymorphisms located in the regulatory region of the CCK-AR gene were assessed by restriction fragment length polymorphism (RFLP) in the polymerase chain reaction (PCR) amplified product of CCK-AR gene in study subjects. RFLP was done by the digestion of the PCR product by the restriction enzyme Pst-1 followed by gel electrophoresis. Statistical Analysis: Assessment of the stability of C/T polymorphism in the study population was done by applying Hardy–Weinberg equilibrium rule. The significance of difference in the allelic distribution between case and controls was analyzed by Chi-square (χ2) test and odds ratio (OR) analysis. Result: CCK-R polymorphism was in Hardy–Weinberg equilibrium in both groups. Distribution of the C allele of this gene was significantly higher in schizophrenia patients (χ2 = 4.35, OR = 1.51; confidence interval at 95% =1.04–2.20). Conclusion: C/T polymorphism of the CCK-R gene is a stable polymorphism in our study population. Moreover, the C allele is significantly more abundant in schizophrenia patients imparting them a greater risk of development of complications like auditory hallucination.


How to cite this article:
Rout JK, Dasgupta A, Singh O, Banerjee U, Basu A. Association of single-nucleotide polymorphism of cholecystokinin receptor A gene with schizophrenia in an Eastern Indian population.Indian J Psychiatry 2015;57:267-271


How to cite this URL:
Rout JK, Dasgupta A, Singh O, Banerjee U, Basu A. Association of single-nucleotide polymorphism of cholecystokinin receptor A gene with schizophrenia in an Eastern Indian population. Indian J Psychiatry [serial online] 2015 [cited 2021 Sep 19 ];57:267-271
Available from: https://www.indianjpsychiatry.org/article.asp?issn=0019-5545;year=2015;volume=57;issue=3;spage=267;epage=271;aulast=Rout;type=0