Association of inflammatory biomarkers and disease activity with subclinical myocardial dysfunction in psoriatic arthritis

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We examined the role of adipokines and pro-inflammatory cytokines in psoriatic arthritis-associated subclinical myocardial dysfunction, and the relationship between these variables and psoriatic arthritis (PsA) disease activity. Fifty-five PsA patients without cardiovascular risk factors and 25 controls underwent standard and speckle tracking echocardiography with global longitudinal strain (GLS) calculated. Standard anthropometric data and Disease Activity in Psoriatic arthritis (DAPSA) scores were recorded, with low disease activity defined as DAPSA ≤ 14 and moderate and high disease activity DAPSA > 14. Standard biochemical tests, adiponectin, resistin, leptin, tumor necrosis factor (TNF) alfa, interleukin 17 A (IL-17A), B lymphocyte chemoattractant (BLC), and monokine induced by intereferon gamma (MIG) were analyzed. Median age was 53.0 (46.0-61.0), median PsA duration 6.0 (4.0-13.0) years and median DAPSA score 25.5 (13.0-41.5). Lower GLS, tricuspid annular plane systolic excursion (TAPSE) and left ventricular ejection fraction (LVEF) were found in moderate and high PsA disease activity compared to low PsA disease activity and controls. PsA patients with GLS < 20 had higher body mass index (BMI), DAPSA score and uric acid levels, and lower adiponectin levels. Although patients with GLS < 20 had higher IL-17A levels, it was not statistically significant (P = 0.056). However, when we included healthy controls and analyzed differences based on a GLS cut-off of 20% in the entire population, the difference in IL-17A became statistically significant, 0.17 pg/mL (0.06-0.32) vs. 0.43 pg/mL (0.23-0.65), P = 0.017. The association between DAPSA score and GLS and IL-17 remained significant in multivariate analysis. Moreover, the association between GLS and IL-17 and adiponectin was significant after adjustment for age and BMI. Patients with moderate and high PsA disease activity have reduced myocardial function, lower adiponectin, and higher IL-17A levels.

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