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Single-nucleotide polymorphisms of tumor necrosis factor-alpha gene are associated with severe adult community acquired pneumonia in Chinese / 中国病理生理杂志
Chinese Journal of Pathophysiology ; (12)2000.
Article in Chinese | WPRIM | ID: wpr-531519
ABSTRACT

AIM:

Tumor necrosis factor-?(TNF-?) participates in the establishment of inflammatory lesions in pneumonia.High production of TNF-? may relate to the severity of pneumonia.There have already been several studies examining the association between pneumonia and single nucleotide polymorphisms(SNPs) that affect cytokine productivity.SNPs of TNF-?,-1 031,-863,-857,-308 and-238 have been identified.The variant alleles of these SNPs have suggested to be related to high TNF-? production and the severity of pneumonia.Therefore,the aim of this study is to examine the association between the severity of pneumonia in Chinese and the following SNPs five in the TNF-? gene promoter(-1 031,-863,-857,-308,-238).

METHODS:

A total of 117 Chinese individuals were enrolled in this study.They were 67 patients with pneumonia and 50 healthy subjects.TNF-? was genotyped by polymerase chain reaction-restriction fragment length polymorphism for all subjects.The frequency distributions of genotypes in different groups were analyzed by SPSS 11.5 program.

RESULTS:

Frequency of subjects who carried at least one variant allele in TNF-?-1 031,-863,-857,-308,-238 SNPs among pneumonia patients was significantly higher than that in healthy subjects.And frequency of subjects who carried variant allele in TNF-?-863,and-308 SNPs among severe adult community acquired pneumonia patients was significantly higher than that in common pneumonia patients.

CONCLUSION:

TNF-?-863 and-308 SNPs appear to be associated with severe adult community acquired pneumonia in Chinese populations.

Full text: Available Index: WPRIM (Western Pacific) Type of study: Prognostic study Language: Chinese Journal: Chinese Journal of Pathophysiology Year: 2000 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Type of study: Prognostic study Language: Chinese Journal: Chinese Journal of Pathophysiology Year: 2000 Type: Article