Nov 13, 2003

Tumor necrosis factor alpha, its soluble receptor I, and -308 gene promoter polymorphism in patients with rheumatoid arthritis with or without amyloidosis: implications for the pathogenesis of nephropathy and anemia of chronic disease in reactive amyloidosis

Arthritis and Rheumatism
C P J MauryM Hurme


To study tumor necrosis factor alpha (TNFalpha) -308 gene promoter polymorphism and circulating levels of TNFalpha and soluble TNF receptor type I (sTNFRI) in rheumatoid arthritis (RA) patients with and without reactive amyloidosis. In a retrospective study, we examined 55 RA patients with biopsy-proven reactive amyloidosis and 55 control RA patients without amyloidosis (matched for age, sex, rheumatoid factor titer, and RA duration). Inflammatory activity was assessed by measuring the erythrocyte sedimentation rate and C-reactive protein level. TNFalpha gene promoter polymorphism was studied using polymerase chain reaction-restriction fragment length polymorphism assay. Cytokine and receptor levels were measured by enzyme-linked immunoassays. Patients with RA and amyloidosis had significantly higher TNFalpha and sTNFRI levels than did the control RA patients. The increased circulating levels of TNFalpha correlated with interleukin-18 levels, but not with the serum amyloid A protein levels or with TNFalpha -308 gene promoter polymorphism (reported to be associated with high TNFalpha levels and certain disease susceptibilities). In the patients with RA and amyloidosis, those with anemia had significantly higher TNFalpha and sTNF...Continue Reading

  • References48
  • Citations23


Mentioned in this Paper

Pathogenic Aspects
Recombinant Interleukin-18
Tumor Necrosis Factor-alpha
C-reactive Protein Measurement
Leukocyte Differentiation Antigens, Human
Kidney Failure
Restriction Fragment Length Polymorphism

Related Feeds


Anemia develops when your blood lacks enough healthy red blood cells. Anemia of inflammation (AI, also called anemia of chronic disease) is a common, typically normocytic, normochromic anemia that is caused by an underlying inflammatory disease. Here is the latest research on anemia.

Related Papers

Clinical Medicine Insights. Arthritis and Musculoskeletal Disorders
Hannan Al-RayesMohammad Tariq
Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
Per Westermark, Gunilla T Westermark
© 2020 Meta ULC. All rights reserved