Effect of antibodies to red cell superoxide dismutase on its activity in the blood of patients with rheumatoid arthritis

1995 ◽  
Vol 120 (4) ◽  
pp. 1024-1026
Author(s):  
I. P. Gontar' ◽  
L. N. Bobrova ◽  
I. A. Zborovskaya
Reumatismo ◽  
2020 ◽  
Vol 72 (1) ◽  
pp. 16-20 ◽  
Author(s):  
M. Bellan ◽  
D. Soddu ◽  
E. Zecca ◽  
A. Croce ◽  
R. Bonometti ◽  
...  

Red cell distribution width (RDW) is an unconventional biomarker of inflammation. We aimed to explore its role as a predictor of treatment response in rheumatoid arthritis (RA). Eighty-two RA patients (55 females), median age [interquartile range] 63 years [52-69], were selected by scanning the medical records of a rheumatology clinic, to analyze the associations between baseline RDW, disease activity scores and inflammatory markers, as well as the relationship between RDW changes following methotrexate (MTX) and treatment response. The lower the median baseline RDW, the greater were the chances of a positive EULAR response at three months, 13.5% [13.0-14.4] being among those with good response, vs 14.0% [13.2-14.7] and 14.2% [13.5- 16.0] (p=0.009) among those with moderate and poor response, respectively. MTX treatment was followed by a significant RDW increase (p<0.0001). The increase of RDW was greater among patients with good EULAR response, becoming progressively smaller in cases with moderate and poor response (1.0% [0.4-1.4] vs. 0.7 [0.1-2.0] vs. 0.3 [-0.1-0.8]; p=0.03). RDW is a strong predictor of early response to MTX in RA. RDW significantly increases after MTX initiation in parallel to treatment response, suggesting a role as a marker of MTX effectiveness.


Author(s):  
Aleksandra Vranic ◽  
Aleksandra Antovic ◽  
Nevena Draginic ◽  
Marijana Andjic ◽  
Marko Ravic ◽  
...  

Abstract The aim of this study was to assess oxidative status and to set baseline characteristics for female population with established rheumatoid arthritis. Total of 42 patients with rheumatoid arthritis and 48 age- and sex-matched controls were included in the study. Clinical examination was performed and assessed disease activity. Peripheral blood samples were used for all the assays. The markers of oxidative stress were assessed, including plasma levels of index of lipid peroxidation - thiobarbituric acid reactive substances, hydrogen peroxide, superoxide anion radical, nitrites and activity of superoxide dismutase, catalase and reduced glutathione levels as antioxidant parameters. In the patients group, levels of hydrogen peroxide and index of lipid peroxidation were higher than in controls. Patients with rheumatoid arthritis had decreased superoxide dismutase and catalase activity compared to healthy subjects. Interestingly, controls had higher levels of nitrites compared to patients. Patients showed a marked increase in reactive oxygen species formation and lipid peroxidation as well as decrease in the activity of antioxidant defense system leading to oxidative stress which may contribute to tissue and cartilage damage and hence to the chronicity of the disease.


2015 ◽  
Vol 240 (1) ◽  
pp. 131-136 ◽  
Author(s):  
Javier Rodríguez-Carrio ◽  
Mercedes Alperi-López ◽  
Patricia López ◽  
Sara Alonso-Castro ◽  
Santiago Rubén Carro-Esteban ◽  
...  

Author(s):  
Daniele Soddu ◽  
Mattia Bellan ◽  
Erika Zecca ◽  
Alessandro Croce ◽  
Roberta Pedrazzoli ◽  
...  

2020 ◽  
Vol 40 (10) ◽  
pp. 1631-1637
Author(s):  
Patricia Pauline M. Remalante ◽  
Evelyn O. Salido ◽  
Ester G. Penserga ◽  
Deonne Thaddeus V. Gauiran

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