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The relationship between tumor necrosis factor-alpha gene polymorphisms and acute severe pancreatitis.

Abstract：

OBJECTIVE:To investigate the relationship between the presence of the TNF2 allele and plasma concentrations of tumor necrosis factor-alpha (TNF alpha) and soluble TNF receptor (sTNF-R) with the development of acute severe pancreatitis (ASP) and severe sepsis. METHODS:Genomic DNA was prepared from peripheral blood leukocytes. The TNF1 and TNF2 biallelic polymorphisms were identified by analyzing NcoI-digested DNA fragments obtained from PCR products. Plasma levels of TNF alpha and sTNF-R were measured by EASIA. RESULTS:The overall TNF2 allele frequency in ASP patients was comparable to that found in healthy volunteers (29.2% vs. 29.3%, P > 0.05). Severe sepsis occurred in 26 of 72 patients. Patients with severe sepsis showed a significantly higher prevalence of TNF2 than those without (46.2% vs. 19.6%, P < 0.05). Plasma TNF alpha, sTNF-R I, and sTNF-R II levels were (36 +/- 31) pg/ml, (5.4 +/- 3.5) ng/ml, and (11.2 +/- 7.8) ng/ml, respectively, in patients with severe sepsis, and (31 +/- 25) pg/ml, (4.6 +/- 3.8) ng/ml, and (8.8 +/- 6.6) ng/ml in non-severe sepsis subjects. Differences in TNF levels were not statistically significant between patients with ASP and control group (P > 0.05). Moreover, there was no correlation between TNF2 allele frequency and TNFalpha levels [(37 +/- 31) pg/ml vs. (31 +/- 25) pg/ml in TNF2 group and TNF1 group, respectively, P > 0.05]. CONCLUSIONS:Our results suggest that there is no relationship between ASP and the TNF2 allele, but that the TNF2 allele is associated with a susceptibility to severe sepsis as a result of ASP.

journal_name

Chin Med J (Engl)

journal_title

Chinese medical journal

authors

Zhang D,Li J,Jiang Z,Yu B,Tang X,Li W

keywords:

subject

Has Abstract

pub_date

2003-11-01 00:00:00

pages

1779-81

issue

11

eissn

0366-6999

issn

2542-5641

journal_volume

116

pub_type

杂志文章

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