scholarly journals Correlation of rheumatoid factor level with the number of CD4+ circulating T lymphocytes in rheumatoid arthritis patient

1989 ◽  
Vol 32 (4) ◽  
pp. 505-506 ◽  
Author(s):  
T. Rème ◽  
M. Portier ◽  
J. Brochier ◽  
J. Sany
Keyword(s):  
Rheumatoid Arthritis ◽  
Rheumatoid Arthritis Patient ◽  
T Lymphocytes ◽  
Rheumatoid Factor ◽  
Factor Level

scholarly journals Reference preparation to standardize results of serological tests for rheumatoid factor

1978 ◽  
Vol 7 (5) ◽  
pp. 434-441
Author(s):  
K M Fulford ◽  
R N Taylor ◽  
V A Przybyszewski
Keyword(s):  
Rheumatoid Arthritis ◽  
Rheumatoid Factor ◽  
Proficiency Testing ◽  
Factor Level ◽  
Serological Tests ◽  
Laboratory Results ◽  
Reference Preparation ◽  
Reference Serum ◽  
Comparability Of Results ◽  
Latex Test

The variance of between-laboratory results for rheumatoid factor tests was reduced through the use of a reference serum preparation. Two separate proficiency testing surveys have shown reduction of 58 to 81% in variance with samples of differing levels and composition. Reduction of variance was seen in data from laboratories in which the same methods and reagents were used, but greater reduction in variance was seen in results from laboratories using different methods and reagents. This study demonstrates that comparability of results of rheumatoid factor tests can be significantly improved through the use of a standard reference serum preparation and that confidence in such results can therefore be increased. A serum rheumatoid factor level of approximately 50 IU/ml is equivalent to a titer of 160 in the Singer-Plotz latex test, which has traditionally been accepted as evidence of rheumatoid arthritis.

Relationship of HLA-DRB1 Alleles and Rheumatoid Arthritis in West South of Iran

2017 ◽  
Vol 9 (03) ◽  
Author(s):  
Karim Mowla ◽  
Elham Rajaee M. D. ◽  
Mehrdad Dargahi-MalAmir M. D. ◽  
Neda Yousefinezhad ◽  
Maryam Jamali Hondori
Keyword(s):  
Rheumatoid Arthritis ◽  
Environmental Factors ◽  
Rheumatoid Factor ◽  
Dna Extraction ◽  
Wrist Joint ◽  
Blood Sampling ◽  
Healthy Controls ◽  
Relationship Of ◽  
Synovial Pannus

Background: Rheumatoid arthritis is a systemic multifactor disease that presented with symmetrical polyarthritis more preferably in small wrist joint and ankle. Synovial pannus cause destruction and deformities in joints. The main reason of this disease in unknown, but past researchesshowed that genetically factor play important role beside environmental factors in susceptibility to this entity. Method:100 patients with rheumatoid arthritis diagnosed upon ACR 2010 criteria enrolled study. 92 healthy patents also enrolled DNA studying. of both group was extracted through DNA extraction kits by blood sampling. HLA-DRB1 typing was done by PCR-SSP method. Results: There were no significant differences in HLADRB1 *04, HLADRB1*08 and HLADRB1*11 alleles presentation between patients and healthy controls. Only there were statically significant correlation between HLA-DRB1*08 and Rheumatoid factor positive patents. (P = 0.025).

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