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Ankylosing spondylitis (AS) is a systemic disease, which mainly causes to axial joint chronic inflammation. Spine, thoracic and peripheral joints may have varying degrees of activity limitation, and somatic activity is also likely to decline. Ankylosis of the spine and movement disorder of hip are the mainly causes of AS patients' disability, which not only affect the patients' motor function, and but al-so affect their social interaction, role affordability, mental state and daily living skills. Exercise therapy is the treatment unarmed or with equipment, for injuries, disease, residual patients, to restore or improve dysfunction. There are a number of studies about exercise therapy for joint function of patients with AS, confirmed that exercise therapy plays a crucial role in the treatment of AS patients, on the basis of the medications control.
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ObjectiveTo compare the significance of anti-cmDNA antibody in systemic lupus erythematosus (SLE) patients detected with IIF on human's B lymphoma cell line Raji and promyelocytic line HL60.The diagnostic value of anti-cmDNA antibody in SLE was also explored.MethodsThree hundred and six patients with SLE were included in this study.As control groups,we included 192 patients with other rheumatic diseases and 50 healthy controls.The testing method for anti-cmDNA antibody was set up.The assessment of the significance of anti-cmDNA antibody in SLE detected with IIF on cell line Raji and HL60 was carried out andthe diagnostic value of anti-cmDNA antibody in SLE was investigated.ANA and antidsDNA antibody were measured by IIF at the same time.Anti-Sm was measured by immuno-diffusion andWestern blotting.AnuA was tested by enzyme linked immunosorbent assay.The statistical methods used in this study including McNemar X2 test,Spearman related test and Logistic regression analysis.Results The fluorescence brightness of Raji cell line was stronger than HL60 cell line.There was no statistically significant difference in the sensitivity and specificity of anti-cmDNA antibody in SLE detected with IIF with Raji or HL60 cell lines (P＞0.05).The sensitivity of anti-cmDNA antibody detected with IIF on Raji cell line was higher than anti-dsDNA antibody and anti-Sm antibody(P＜0.01),while the specificity of anti-cmDNA antibody was similar to anti-dsDNA antibody (P＞0.05) and was lower than anti-Sin antibody (P＜0.01).The sensitivity of anti-cmDNA antibody was similar to AnuA(P＞0.05) and the specificity was lower than AnuA (P＜0.01).The sensitivity of ANA was higher than anti-cmDNA antibody (P＜0.01) and the specificity was much lower than anti-cmDNA antibody(P＜0.01).The sensitivities of anti-dsDNA antibody,anti-Sm antibody and AnuA were much higher when combined with anti-dsDNA antibody than any one antibody only (P＜0.05).Anti-cmDNA antibody was correlated with mucosa ulcer in SLE patients(OR=2.343,P=0.029).The ESR of SLE patients was also correlated with anti-cmDNA antibody(OR=l.031,P=0.012).Anti-cmDNA antibody was not correlated with SLEDAI (r=0.070,P=0.600).ConclusionRaji cell line is better than HL60 cell line in detecting anti-cmDNA antibody with IIF.Anti-cmDNA antibody has higher sensitivity and specificity in SLE.Combined detection of anti-cmDNA antibody and other autoantibodies can further improve the diagnostic accuracy of SLE.
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Objective In this study,we elucidated the role of high mobility group box chromosomal protein 1 (HMGB1) in collagen-induced arthritis (CIA) rat and the antagonist role of ethyl pyruvate by using a rat model of CIA as the research object by comparing the expression of HMGB1 in normal control group,CIA model group and ethyl pyruvate group.Methods Thirty-six rats were randomly divided into 3 groups (n=12):normal control group,CIA group and ethyl pyruvate group.Then the 6 rats were dissected at the 6th,9th week respectively.Thc expression of HMGB1 was analyzed by immunohistochemistry and Pathology-image analysis software in the cytoplasma.The expression of HMGB1 mRNA with real time-polymerse chain reaction (PCR) was evaluate,and the HMGB1 expression of each group were compared with t-test.Results The immunohistochemical results of HMGB1 showed that the expression intensity in the normal control group,CIA model group and ethyl pyruvate group was 2.1±0.6,7.3±1.2,6.0±1.2 respectively at the 6th week; and 2.2±0.7,12.4±4.5,5.5±1.0 at the 9th week respectively.The HMGB1 mRNA real time-PCR results had shown that the relative quantification of the normal control group and CIA model group were 1,2.865,2.602respectively at the 6th week and 1.005,4.694,1.729 at the 9th week.At those two points, the HMGB1 expressions of HMGB1 antagonist group were significantly higher than those of the normal controls (P＜0.05).In addition,there was statistical significant difference(P＜0.05) in the HMGB1 expression when compared with the placebo group.Furthermore, when the degree of HMGB1 expression among the three groups was compared,the HMGB1 antagonist group was decreased significantly (P＜0.05).Conclusion The results has demonstrated that HMGB1 could induce inflammation in the synovial tissue of CIA rats,and has provided the rationale that HMBG 1 could be the target of treating rheumatoid arthritis (RA).The results of this study have shown that ethyl pyruvate could antagonize the effect of HMGB1.This finding may provide a new therapeutic target for the treatment of RA.
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Objective To compare the significance of DNA-associated autoantibodies to cell membrane(cmDNA)in systemic lupus erythematosus(SLE)detected with indirect immunofluorescence on human B lymphoma cell line Raji and pmmyelocytic line HL60.Methods Indirect immunofluorescence assay both on cell line Raji and HL60 was used to measure anti-cmDNA antibodies in sera of 306 SLE patients.192 patients with other rheumatic diseases and 50 healthy controls.Results Indirect immunofluorescence assay on cell line Raji was used to measure anti-cmDNA antibodies.72.5% SLE and 10.4% other rheumatic diseases were positive for anti-cmDNA,but negative in 50 blood donors(P0.05).The methods of culture,freeze and resuscitation on the two cells were similar.but cell line Raji was easier to resuscitate than cell line HL60.Observing with fluorescence microscope.we find that cmDNA was expressed on the both cells and the staining was stronger on cellline Raji than HL60.Conclusion Anti-cmDNA antibody has high positivity which is one of the most valuable marker in the diagnosis of SLE.We recommend to measure anti-cmDNA antibodies with indirect immunofluorescence assay on cell line Raji rather than HL60.
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Objective To assess the diagnostic value of anti-mutated citrullinated vimentin antibodies (anti-MCV) for rheumatoid arthritis (RA), and compare it with anti-cyclic citrullinated peptide antibodies (anti-CCP), rheumatoid factors (RF). Methods Commercially available enzyme-linked immunosorbent assay (ELISA) kit was used to detect anti-MCV antibodies in a group of 177 RA patients, 46 patients with other rheumatic diseases, and 48 healthy blood donors. At the same time, anti-CCP, RF were detected. T test and χ2 test were selected. Results The average concentration of anti-MCV was (523±376) U/ml in RA, (96± 55) U/ml in patients with other rheumatic diseases, (34±18) U/ml in healthy controls. Different threshold levels (20, 40, 60, 80, 100, 120, 140 U/ml) for positive results were calculated bythe areas under the ROC curve (the areas were 0.521, 0.706, 0.769, 0.791, 0.816, 0.826, 0.822), then the best diagnosis efficacy for RA was determined as more than 120 U/ml. At this level, the sensitivity and the specificity for anti-MCV were 80.1% and 80.9% for RA diagnosis. The positive and negative predictive value were 92% and 67.8%. Comparing with anti-CCP, anti-MCV showed comparable specificity but higher sensitivity. And it's also better than RF apparently. If all 3 antibodies were detected at the same time, or anti-MCV combine with one of them, the sensitivity would increase to 95.7%. In addition, Anti-MCV showed positive in 32 of 67(55.2%) patients with RA whose anti-CCP was negative, meanwhile 31 of 59 (52.5%) patients with RA whose RF was negative. Conclusion RF and anti-CCP are complementary in diagnosing RA. The combination detection of RF and anti-CCP could significantly improve the specificity for the diagnosis of RA.