The effect of genetic polymorphisms of cyclooxygenase 2 on acute pancreatitis in Turkey.
OBJECTIVE
The aims of our study were to determine if polymorphisms in the cyclooxygenase 2 (COX-2) gene is associated with acute pancreatitis (AP) and to evaluate if inflammation risk is associated with specific COX-2 gene haplotypes containing these polymorphisms.


METHODS
The COX-2 genotypes for 7 polymorphisms (rs5275, rs2206593, rs4648262, rs4648261, rs2066826, rs5277, rs2745557) were determined using polymerase chain reaction-restriction fragment length polymorphism analysis in 103 patients with AP and 92 healthy controls.


RESULTS
Except for rs5275, the frequencies of COX-2 polymorphisms were both similar in patients with mild or severe pancreatitis, so were in pancreatitis patients and in controls. Only rs5275 was statistically significantly associated with AP risk. The association was seen with rs5275 (P = 0.03); specifically, patients carrying the TT genotype in comparison with patients carrying the CC genotype had a significantly lower risk of disease (odds ratio, 1.88; 95% confidence interval, 1.06-3.34). Haplotypes with nucleotide T at the -18491961 position (rs5275) and A at the 184915627 position (rs4648261) of COX-2 promoter seem to increase susceptibility (odds ratio, 2.46; 95% confidence interval, 1.15-5.29; P = 0.02).


CONCLUSIONS
These findings suggest that the rs5275 polymorphism in the 3'-untranslated region of the COX-2 gene may be used as 1 marker for defining the risk of AP.
Ozhan
Gül
G
Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Istanbul University, 34116 Beyazit, Istanbul, Turkey. gulozhan@istanbul.edu.tr
Yanar
Teoman Hakan
TH
Ertekin
Cemalettin
C
Alpertunga
Buket
B
D000208:Acute Disease; D000368:Aged; D051546:Cyclooxygenase 2 / Q000235:genetics*; D005260:Female; D005819:Genetic Markers; D006239:Haplotypes; D006801:Humans; D008297:Male; D008875:Middle Aged; D010195:Pancreatitis / Q000235:genetics*; D011110:Polymorphism, Genetic; D011401:Promoter Regions, Genetic; D014421:Turkey
D005819:Genetic Markers; D051546:Cyclooxygenase 2; C496540:PTGS2 protein, human