Abstract
BackgroundSchizophrenia is a multifactorial disease in which genetic factors play a greater role than other factors. The genes of importance in schizophrenia patients are the genes that encode for neurotransmitters associated with low minor allele frequency (MAF) scores. This study was aimed to determine the association of genetic variations in catechol-O-methyl transferase (COMT), Ras association domain family member 1 (RASSF1) and glycoprotein M6A (GPM6A) with the risk of paranoid schizophrenia (PS) in patients admitted to Prof HB Saanin Psychiatric Hospital, West Sumatra, Indonesia.MethodsGenotyping analysis through polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and PCR-amplification refractory mutation system (ARMS) was performed in 100 PS patients and 100 healthy controls. Chi-square and Fisher’s exact tests were used to compare the frequencies of genotype and allotype between the PS and control groups. Odds ratio (OR) with 95% confidence interval (95% CI) were calculated to determine the relative risk of PS with respect to genetic variations.ResultsPolymorphism rs13142920 in GPM6A was associated with significantly elevated risk of PS (P = 0.020; OR = 1.60 [95% CI: 1.08, 2.39]). However, COMT rs4680 and RASSF1 rs2073499 polymorphisms were not significantly associated with PS.ConclusionThe GPM6A rs13142920 polymorphism holds great potential as a genetic marker in PS patients.
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