NDLI: Functional polymorphism of cyclooxygenase-2 gene (G–765C) in chronic obstructive pulmonary disease patients

Content Provider	Springer Nature Link
Author	Pietras, Tadeusz Szemraj, Janusz Panek, Michał Witusik, Andrzej Banasiak, Maciej Antczak, Adam Górski, Paweł
Copyright Year	2011
Abstract	Cyclooxygenase two (COX-2) is an important enzyme metabolizing arachidonic acid. In contrast to constitutive cyclooxygenase one (COX-1), COX-2 is induced by proinflammatory factors. Polymorphism −765G/C in COX-2-encoding gene promoter is associated with development of Alzheimer’s disease, depression, carcinoma of the pancreas in smokers, breast cancer and rheumatoid arthritis. It is interesting whether the −765G/C polymorphism in COX-2-encoding gene promoter can be associated with COPD, a disease which is inflammatory in character. It is highly probable as the breast and pancreas cancers, whose associations with the analyzed polymorphism have been studied, are smoking-dependent tumors. Additionally, tobacco smoke has been demonstrated to induce COX-2 in the lungs. The study group consisted of 122 COPD patients (48 females, 74 males). The control group consisted of 149 healthy nonsmoking subjects (83 females, 66 males). Polymerase chain reaction/restriction fragment length polymorphism was used for genotyping. A statistically significant difference in genotype distribution was observed as a result of the comparison between healthy subjects and patients with COPD. The distribution of alleles in both groups conformed with Hardy–Weinberg equilibrium. In the group of COPD patients, GG allele was found in 79 subjects, GC in 36, and CC in 7 subjects (F = 0.094, P = 0.296927); in the control group, 73 subjects had GG allele, 68—GC and 8—CC (F = 0.12728, P = 0.120265). The allele frequency revealed differences between those groups, attaining the level of statistical significance (χ$^{2}$ = 29.043, df = 2, P = 0.0000. The carriers of −765G allele are at 1.53-fold higher risk of developing COPD. The presence of GG genotype does not increase significantly the risk of the disease. It is also noteworthy that the carriers of CC or GC genotypes are at significantly lower risk of developing COPD than the group of subjects with GG genotype.
Starting Page	2163
Ending Page	2167
Page Count	5
File Format	PDF
ISSN	03014851
Journal	Molecular Biology Reports
Volume Number	39
Issue Number	3
e-ISSN	15734978
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-06-08
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Cyclooxygenase-2 Chronic obstructive pulmonary disease Single nucleotide polymorphism Animal Biochemistry Animal Anatomy / Morphology / Histology
Content Type	Text
Resource Type	Article
Subject	Genetics Medicine Molecular Biology

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