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Bactericidal/permeability increasing protein gene polymorphism and inflammatory bowel diseases: meta-analysis of five
Lijuan Fan1, Guoning Fu1, Yuanyuan Ding1
1Department of Gastroenterology, Jining First People's Hospital, No. 6 health Road, Jining, Shandong Province, 272000, China.
Objective:
Bactericidal/permeability increasing protein (BPI) gene polymorphisms have been extensively investigated in terms of their associations with inflammatory bowel disease (IBD), with contradictory results. The aim of this meta-analysis was to evaluate associations between BPI gene polymorphisms and the risk of IBD, Crohn's disease (CD), and ulcerative colitis (UC).
Methods:
Eligible studies from PubMed, Embase, and Cochrane library databases were identified.
Results:
Ten studies (five CD and five UC) published in five papers were included in this meta-analysis. G645A polymorphism was associated with a decreased risk of UC in allele model, dominant model, and homozygous model.
Conclusions:
Our data suggested that BPI G645A polymorphism was associated with a decreased risk of UC; the BPI G645A polymorphism was not associated with the risk of CD.
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