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KMID : 0191120010160060751
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Journal of Korean Medical Science
2001 Volume.16 No. 6 p.751 ~ p.755
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Is Tumor Necrosis Factor Genotype (TNFA2/TNFA2)a Genetic Prognostic Factor of an Unfavorable Outcome in IgA Nephropathy?
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Sae Yong Hong/Eun Young Lee
Dong Ho Yang/Kyu Yoon Hwang/Sae Yong Hong
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Abstract
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The purpose of this study was to examine whether there are the associations between TNF α and TNF β gene polymorphisms and the development and progression of Ig A nephropathy (IgAN). A cross-sectional study on TNF α and TNF β gene polymorphisms by polymerase chain reaction with restriction fragment length poly-morphisms was performed on 76 patients with primary IgAN confirmed by renal biopsy and 100 healthy controls. The allele with G→A substitution was designated as TNFA2 for the TNF α gene and TNFB2 for the TNF β gene. A patient in whom dialysis treatment was started or whose serum creatinine became double or over during the follow-up duration was designated as a "progressor". The TNFA2/ TNFA2 genotype was more prevalent in the progressor than in the non-pregressor group (20.0 vs 3.3%, p<0.05). Clinical factors such as serum creatinine, systolic and diastolic blood pressure (p<0.001, respectively) were higher and pathologic factor such as Grade IV or V renal lesions was more prevalent (p<0.01) in the progressor than in the non-progressor group. Therefore, TNFA2/TNFA2 genotype may be a risk factor for the progression of IgAN.
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KEYWORD
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Glomerulomephritis, lgA, Tumor Necrosis Factor, Polymorphisam(Genetics),
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