Zhu Y, Zheng G, Hu Z. Association between SERT insertion/deletion polymorphism and the risk of irritable bowel syndrome: A meta-analysis based on 7039 subjects.
Gene 2018;
679:133-137. [PMID:
30121382 DOI:
10.1016/j.gene.2018.08.059]
[Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 08/16/2018] [Indexed: 02/07/2023]
Abstract
PURPOSE
We performed this study to better assess the relationship between serotonin transporter (SERT) insertion/deletion polymorphism and the risk of irritable bowel syndrome (IBS).
METHODS
Eligible studies were searched in PubMed, Medline, Embase and CNKI. A total of 27 studies with 7039 participants were analyzed.
RESULTS
Significant association with the risk of IBS was detected for the SERT insertion/deletion polymorphism in additive comparison (p < 0.0001). Further subgroup analyses according to ethnicity of participants revealed that the SERT insertion/deletion polymorphism was significantly associated with the risk of IBS in Asians (dominant model: p = 0.001; recessive model: p = 0.0003; allele model: p = 0.001) and Caucasians (dominant model: p = 0.04; additive model: p < 0.0001). When we stratified available data according to type of disease, we found that the SERT insertion/deletion polymorphism was significantly correlated with the risk of constipation predominant IBS (IBS-C) in recessive comparison (p = 0.04). However, no positive results were detected in the diarrhea predominant IBS (IBS-D) and mixture of diarrhea and constipation IBS (IBS-M) subgroups.
CONCLUSIONS
Our findings indicated that the SERT insertion/deletion polymorphism may serve as a genetic biomarker of IBS in Asians and Caucasians.
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