5-hydroxytryptamine (serotonin) 2a receptor gene polymorphism is associated with schizophrenia

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ID: 197893
2014
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Abstract
Background & objectives: Schizophrenia, the debilitating neuropsychiatric disorder, is known to be heritable, involving complex genetic mechanisms. Several chromosomal regions associated with schizophrenia have been identified during the past; putative gene (s) in question, to be called the global signature for the pathophysiology of the disease, however, seems to evade us. The results obtained from the several population-wise association-non association studies have been diverse. w0 e therefore, undertook the present study on Tamil speaking population in south India to examine the association between the single nucleotide polymorphisms (SNPs) at the serotonin receptor gene (5HT2A) and the occurrence of the disease. Methods: Blood samples collected from 266 cases and 272 controls were subjected to genotyping (PCR amplification of candidate SNPs, RFLP and sequencing). The data on the SNPs were subjected to statistical analysis for assessing the gene frequencies in both the cases and the controls. Results: The study revealed significant association between the genotypic frequencies of the serotonin receptor polymorphism and schizophrenia. SNP analysis revealed that the frequencies of GG (30%, rs6311) and CC genotypes (32%, rs6313), were higher in patients (P<0.05) than in controls. The study also showed presence of G and C alleles in patients. s0 ignificant levels of linkage disequilibrium (LD) were found to exist between the genotype frequencies of rs6311 and rs6313. Interpretation & conclusions: This study indicated an association between the SNPs (rs6311 and rs6313) of the serotonin receptor 5HT2A and schizophrenia. HapMap analysis revealed that in its genotype distribution, the Tamil speaking population was different from several other populations across the world, signifying the importance of such ethnicity-based studies to improve our understanding of this complex disease.
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sujitha2014indian5-hydroxytryptamine Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Subash Padmajeya Sujitha;Asha Nair;Moinak Banerjee;Srinivasan Lakshmanan;Sampth Harshavaradhan;Soosiah Gunasekaran;Anilkumar Gopinathan
Journal international journal of radiation biology
Year 2014
DOI
DOI not found
URL
http://www.ijmr.org.in/article.asp?issn=0971-5916;year=2014;volume=140;issue=6;spage=736;epage=743;aulast=Sujitha
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