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Eur J Surg Oncol. 2008 Jun;34(6):636-41. Epub 2007 Oct 22.

Tissue inhibitor of metalloproteinase-2 G-418C polymorphism is associated with an increased risk of gastric cancer in a Chinese population.

Author information

  • 1Key Laboratory of Reproductive Medicine, Department of Pharmacology, Nanjing Medical University, 140 Hanzhong Road, Nanjing 210029, Jiangsu Province, China.

Abstract

AIMS:

To examine the effect of the TIMP-2 G-418C polymorphism on gastric cancer risk.

METHODS:

We conducted a hospital-based, case-control study using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method in 412 individuals (206 gastric cancer patients and 206 age, sex matched cancer-free controls).

RESULTS:

The genotype and allele frequencies were significantly different (P = 0.007 and 0.005, respectively) between cases and controls. Further analysis showed that the variant TIMP-2 genotypes (CC+GC) had a 51% increased risk of gastric cancer compared with GG [adjusted odds ratio (OR) 1.51, 95% confidence interval (CI) 1.00-2.26, P = 0.049]. The elevated gastric cancer risk was especially evident in younger individuals (age < 58 years old) (adjusted OR 2.21, 95% CI 1.18-4.16) and smokers (adjusted OR 2.61, 95% CI 1.01-6.72). However, no significant association was observed between the variant genotypes and clinicopathological features of gastric cancer.

CONCLUSIONS:

These findings suggest that the TIMP-2 G-418C polymorphism is a genetic predisposing factor for gastric cancer.

PMID:
17954022
[PubMed - indexed for MEDLINE]
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