Aim: To prospectively investigate the association between the XbaI polymorphisms of apolipoprotein B (APOB) gene and gallstone formation following gastrectomy.
Methods: The study was conducted between January 2005 and December 2006. A total of 186 gastric cancer patients who had undergone radical gastrectomy were grouped according to XbaI polymorphisms of APOB gene (X(+)X(-) group, n = 24 and X(-)X(-) group, n = 162) and compared. The XbaI polymorphisms of APOB gene were detected by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP).
Results: The incidence of gallstone was significantly higher in the X(+)X(-) group than in the X(-)X(-) group [54.2% vs 9.3%, RR = 5.85 (2.23-15.32), P < 0.001]. The serum levels of total cholesterol (TC) and low-density lipoprotein (LDL) were higher in the X(+)X(-) than in the X(-)X(-) group (4.02 +/- 1.12 vs 3.48 +/- 0.88, P = 0.004 before surgery and 3.88 +/- 1.09 vs 3.40 +/- 0.86, P = 0.008 after surgery). LDL was 2.21 +/- 0.96 vs 1.89 +/- 0.84 (P = 0.042) before surgery and 2.09 +/- 0.95 vs 1.72 +/- 0.85 (P = 0.029) after surgery in the two groups. No relationship was found between XbaI polymorphisms and gallbladder motility.
Conclusion: In Chinese patients after radical gastrectomy, X(+) allele of APOB gene is another risk factor for the development of gallstone besides the gallbladder motility disorder after surgery.
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| http://dx.doi.org/10.3748/wjg.v16.i20.2549 | DOI Listing |
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