BACKGROUND: Studies of serotonin reuptake transporter (SERT-P) polymorphism and irritable bowel syndrome (IBS) have shown diverse results among different populations, which might be due to racial and ethnic difference. AIM: This study was to investigate the potential association between the SERT-P polymorphism and clinical subtypes of IBS patients in the Indian population. METHOD: This prospective case-control study included 151 IBS patients. Ninety-two patients were diarrhea-predominant IBS, 44 were constipation-predominant IBS (C-IBS), 15 were alternating diarrhea and constipation IBS, and 100 were healthy controls. SERT gene polymorphism was studied by polymerase chain reaction. RESULT: A genotypic association was observed between SS genotype of SERT-P polymorphism and C-IBS (P<0.05). When the L/S and L/L genotypes were combined into one group, the frequency of the S/S genotype was significantly higher than that of the non-S/S genotype between C-IBS and the control group (P<0.05). There was no significant difference in the SERT-P genotype and allele frequency between c-ibs, alternating diarrhea and constipation IBS, all types of IBS cases, and controls. CONCLUSIONS: A significant association was observed between the SS genotype of SERT-P polymorphism and C-IBS in the Indian population.
BACKGROUND: Studies of serotonin reuptake transporter (SERT-P) polymorphism and irritable bowel syndrome (IBS) have shown diverse results among different populations, which might be due to racial and ethnic difference. AIM: This study was to investigate the potential association between the SERT-P polymorphism and clinical subtypes of IBSpatients in the Indian population. METHOD: This prospective case-control study included 151 IBSpatients. Ninety-two patients were diarrhea-predominant IBS, 44 were constipation-predominant IBS (C-IBS), 15 were alternating diarrhea and constipation IBS, and 100 were healthy controls. SERT gene polymorphism was studied by polymerase chain reaction. RESULT: A genotypic association was observed between SS genotype of SERT-P polymorphism and C-IBS (P<0.05). When the L/S and L/L genotypes were combined into one group, the frequency of the S/S genotype was significantly higher than that of the non-S/S genotype between C-IBS and the control group (P<0.05). There was no significant difference in the SERT-P genotype and allele frequency between c-ibs, alternating diarrhea and constipation IBS, all types of IBS cases, and controls. CONCLUSIONS: A significant association was observed between the SS genotype of SERT-P polymorphism and C-IBS in the Indian population.
Authors: Anastasia Kourikou; George P Karamanolis; George D Dimitriadis; Konstantinos Triantafyllou Journal: World J Gastroenterol Date: 2015-07-07 Impact factor: 5.742
Authors: Theodoros Karantanos; Theofano Markoutsaki; Maria Gazouli; Nicholas P Anagnou; Dimitrios G Karamanolis Journal: Gut Pathog Date: 2010-05-13 Impact factor: 4.181