ABSTRACT
Objective To examine the distribution of systemic inflammation and risk factors of cardiovascular disease (CVD) in patients with psoriatic arthritis (PsA) by comparing with healthy controls.Methods Forty PsA patients and 44 controls were recruited into this cross-sectional study.We evaluated the disease activity and severity [erythrocyte sedimentation rate (ESR),C reactive protein(CRP) and Disease Activity Score (DAS)28],functional ability in patients with predominant axial involvement [Bath AS disease activity index (BASDAI) and Bath AS functional index (BASH)],traditional CVD risk factors and inflammation between these two groups of patients.Then,we compared risk factors for CVD between 40 consecutive PsA patients and 44 controls,adjusted for body mass index (BMI).The frequencies were compared using chi-square tests for categorical variables.Student's t-tests or Mann-Whitney U-tests were used forcontinuous variables where appropriate.Association between the traditionaland metabolic risk factors and the hs-CRP level were assessed using Spearman correlations.Finally,we also assessed the role of inflammation on the CVD risk factor by using a BMI and hs-CRP-adjusted model.Results The BMI of PsA patients was significantly higher than that of the controls.After adjusting for the BMI,PsA patients had a higher prevalence of hypertension (OR=5.615,95％CI 1.844-17.099) and diabetes mellitus (OR=10.655,95％CI 1.150-98.683) than the controls.PsA patients had significantly increased systolic and diastolic blood pressures [(SBP) and (DBP)],total cholesterol (TC)/high density lipoprotein cholesterol (HDL),insulin resistance,inflammatory markers (hsCRP,white cell count and platelet) and decreased HDL compared to the controls.As excepted,the hsCRP level [4.0 (2.1-13.9) vs 1.7 (1.3-2.2)],platelet and white cell counts were significantly increased in the PsA group reflecting underlying inflammation.Further adjustment for hsCRP level rendered the differences in the prevalence of hypertension (OR=3.544,95％CI 1.151-10.914);but the DBP,HDL and sugar levels were non-significantly different between the two groups,while the differences in other parameters were significant.Conclusion The data support the hypothesis that PsA may be associated with hypertension,obesity and dyslipidemia because of the shared inflammation pathway.
ABSTRACT
Objective An analysis was carried out for the reports of traditional Chinese medical syndrome patterns of psoriatic arthritis (PsA) patients in related reports issued in the recent 35 years, thus to explore the characteristics of syndrome patterns of PsA patients and to supply evidence for the syndrome classification. Methods Electronic retrieval was performed in the reports of PsA syndrome analysis issued in the Chinese medical journals from the year of 1979 to 2013. Traditional Chinese medical syndrome information of PsA patients was extracted from the reports, and then was standardized and classified. SPSS 17.0 software was applied for the analysis of occurrence frequency of syndromes, syndrome elements, tongue and pulse states. Results A total of 84 reports were obtained, and 26 reports met the inclusion criteria. In the 26 included reports, 10 kinds of tongue texture, 15 kinds of tongue fur and 22 kinds of pulse states were present. After the standardization of the syndromes, a total of 39 syndrome patterns were obtained. After combination of the similar syndromes, 14 syndromes were included into the analysis. In the 14 included syndrome patterns, the leading 5 patterns were wind-damp heat arthralgia, wind-heat with blood dryness, excessive heat toxin, wind-cold damp arthralgia, and liver-kidney deficiency. Fourteen syndrome elements were extracted from the syndromes, and 9 were included into the analysis after combination of the similar syndrome elements. The top syndrome elements were heat, phlegm-dampness, wind, dryness, deficiency, and blood stasis. Conclusion The syndrome patterns of PsA patients are various, and the syndrome elements of cold, heat, phlegm-dampness, wind, dryness, and blood stasis play an important role in the pathogenesis of PsA.
ABSTRACT
AIM:To examine the effects of thromboxane A 2 receptor ( TXA2 R) , the downstream product of cy-clooxygenase-2 (COX-2), on the proliferative ability and COX-2 expression in rheumatoid arthritis (RA) synovial cells. METHODS:The effects of TXA2 R antagonist SQ29548 and agonist U46619 on the proliferation of RA synovial cell line MH7A were detected by MTS cell proliferation assay , and their effects on COX-2 mRNA expression in MH7A cells were al-so examined by real-time PCR.In addition, the possible effect of U46619 on the proliferation of MH7A cells, when COX-2 was knocked down by siRNA , was determined by BrdU cell proliferation assay .RESULTS:SQ29548 inhibited the cell proliferation and the mRNA level of COX-2 while U46619 enhanced them.Moreover, U46619 reconstitute the proliferative ability of MH7A cells to some extent that inhibited by COX-2 siRNA.CONCLUSION: In RA synovial cells, TXA2R is able to control COX-2 expression, while it also mediates the effects of COX-2, suggesting that TXA2R might be an ideal candidate for RA treatment .