• Min Jiang, Zhouquan Li, Shien Fu, Yanzhen Xu, Yanjun Tan, Wenxian Jia, Zhiwen Jiang, Nanfang Mo, Xinyan Wei, Ruoheng Zhang, Zaiping Zhang, Guangjian Jiang, and Xiaoli Yang.
• Medical Scientific Research Center, Guangxi Medical University, Nanning, Guangxi, China.
• Am. J. Med. Sci. 2020 Jul 1; 360 (1): 55-63.

BackgroundCystic fibrosis transmembrane conductance regulator IVS8-5T gene variation appears to be associated with a higher risk of chronic pancreatitis (CP); however, there is inconsistency between previous reported studies. Here, we performed a meta-analysis to investigate this relationship.Materials And MethodsPubMed and WANFANG databases were searched for the case-control studies that contained Patients with CP with IVS8-5T variation. Odd ratios (ORs) and 95% confidence intervals (CIs) were calculated to assess the relevance of IVS8-5T gene variation and CP.ResultsAnalysis showed that the frequency of the 5T allele was significantly higher in CP subjects than that in control subjects (OR = 1.43, 95% CI: 1.13-1.81, I2 = 1.2%). Based on the subgroup analysis stratified by etiology, the 5T allele was associated with a higher risk of idiopathic chronic pancreatitis (ICP) (OR = 1.80, 95% CI: 1.18-2.76, I2 = 0.0%) and not alcoholic CP (OR = 2.14, 95% CI: 0.98-4.66, I2 = 0.0%). Further study indicated that the 5T allele was related to higher ICP prevalence in the European population (OR = 1.79, 95% CI: 1.06-3.03, I2 = 0.0%). In contrast, there was no significant difference between ICP subjects and healthy controls within the Asian population (OR = 1.84, 95% CI: 0.91-3.72, I2 = 38.0%).ConclusionsCystic fibrosis transmembrane conductance regulator IVS8-5T is a risk factor in patients with CP. IVS8-5T variation may play a significant role in the occurrence of ICP, especially in the European population.Copyright © 2020 Southern Society for Clinical Investigation. Published by Elsevier Inc. All rights reserved.

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