title: Association between the ionotropic glutamate receptor kainate3 (GRIK3) Ser310Ala polymorphism and schizophrenia in the Indian population.
abstract: Various studies have been done to check the status of glutamate receptor gene in the pathogenesis of schizophrenia. The T928G (Ser310Ala) polymorphism of ionotropic glutamate receptor kainate 3 gene (GRIK3) and its positive association with schizophrenia was reported in Caucasians, whereas no association of this polymorphism with schizophrenia was shown in two other populations, Chinese and Japanese. However, no literature is available regarding the prevalence of this polymorphism and its association with schizophrenia in the Indian population. As genetic susceptibility profiles in India are often different from those of white Caucasians or Orientals, we investigated the status of Ser310Ala polymorphism of GRIK3 in 100 schizophrenic patients and 100 healthy controls in the Indian population by the PCR-RFLP (restriction fragment length polymorphism) method. A statistically significant difference in the genotype and allelic distributions (P<0.000001 and P=0.01, respectively) of Ser310Ala polymorphism was found in schizophrenics than in control, considering Ala-allele as being associated with the disease (OR=1.7, 95% CI=1.137-2.540). Our study suggests a potential role for GRIK3 for susceptibility to schizophrenia in Indian population.
authors.affiliation: Department of Pharmacology, University College of Medical Sciences, GTB-Hospital, India.
authors.forename: Yusra
authors.initials: Y
authors.lastname: Ahmad
authors.forename: Manjeet S
authors.initials: MS
authors.lastname: Bhatia
authors.forename: Pramod K
authors.initials: PK
authors.lastname: Mediratta
authors.forename: Krishna K
authors.initials: KK
authors.lastname: Sharma
authors.forename: Harsh
authors.initials: H
authors.lastname: Negi
authors.forename: Kunzang
authors.initials: K
authors.lastname: Chosdol
authors.forename: Subrata
authors.initials: S
authors.lastname: Sinha
mesh_terms: D000483:Alleles; D003431:Cross-Cultural Comparison; D005787:Gene Frequency / Q000235:genetics; D020022:Genetic Predisposition to Disease / Q000208:ethnology* / Q000235:genetics; D005828:Genetics, Population; D005838:Genotype; D006801:Humans; D007194:India; D016133:Polymerase Chain Reaction; D011110:Polymorphism, Genetic / Q000235:genetics*; D012150:Polymorphism, Restriction Fragment Length / Q000235:genetics; D018092:Kainic Acid Receptors / Q000235:genetics*; D012559:Schizophrenia / Q000208:ethnology* / Q000235:genetics*; D000097808:GluK3 Kainate Receptor
chemical_list: D018092:Kainic Acid Receptors; D000097808:GluK3 Kainate Receptor