Predictors of Cardiovascular Affection in Patients with Active Rheumatoid Arthritis: Secondary Analysis of a Randomized Controlled Trial

The Cardiovascular Burden of Rheumatoid Arthritis - Implications for Treatment

Mortality in rheumatoid arthritis is increased, about twice vs controls, and cardiovascular diseases are a major cause. The pathogenesis is primarily accelerated atherosclerosis of the coronary, cervical, and cerebral arteries, which is premature, pervasive, and progressive, but often occult, under-recognized, and under-treated. It is mostly driven by the chronic, systemic autoimmune inflammation, but increased prevalence of traditional risk factors and adverse effects of treatments are also very important. Inflammatory markers, disease severity, and duration are major determinants of the cardiovascular risk in rheumatoid arthritis, which is underestimated by usual methods. Cardiovascular protection is best achieved by suppressing inflammation and disease activity as early as possible ("treat-to-target"), and striving to achieve and maintain remission or lowest disease activity. Secondly, identifying and addressing the whole spectrum of traditional risk factors, currently often neglected, is necessary. Because long-term glucocorticoid exposure ≥5 mg/d may be associated with cardiovascular events and other harm, more intensive treatment, especially useful for bridging with methotrexate at the outset of treatment, needs to be limited in time and dosage. A multipronged approach may improve cardiovascular outcomes of RA patients in future studies.

Dyslipidemia in rheumatoid arthritis: the possible mechanisms

Rheumatoid arthritis (RA) is an autoimmune inflammatory disease, of which the leading cause of death is cardiovascular disease (CVD). The levels of total cholesterol (TC), low-density lipoprotein cholesterol (LDL-c), and high-density lipoprotein cholesterol (HDL-c) in RA decrease especially under hyperinflammatory conditions. It is conflictive with the increased risk of CVD in RA, which is called "lipid paradox". The systemic inflammation may explain this apparent contradiction. The increased systemic proinflammatory cytokines in RA mainly include interleukin-6(IL-6)、interleukin-1(IL-1)and tumor necrosis factor alpha(TNF-α). The inflammation of RA cause changes in the subcomponents and structure of HDL particles, leading to a weakened anti-atherosclerosis function and promoting LDL oxidation and plaque formation. Dysfunctional HDL can further worsen the abnormalities of LDL metabolism, increasing the risk of cardiovascular disease. However, the specific mechanisms underlying lipid changes in RA and increased CVD risk remain unclear. Therefore, this article comprehensively integrates the latest existing literature to describe the unique lipid profile of RA, explore the mechanisms of lipid changes, and investigate the impact of lipid changes on cardiovascular disease.

Selective Inhibitors of Medium-Size S1' Pocket Matrix Metalloproteinases: A Stepping Stone of Future Drug Discovery

Among various matrix metalloproteinases (MMPs), MMPs having medium-size S1' pockets are established as promising biomolecular targets for executing crucial roles in cancer, cardiovascular diseases, and neurodegenerative diseases. However, no such MMP inhibitors (MMPIs) are available to date as drug candidates despite a lot of continuous research work for more than three decades. Due to a high degree of structural resemblance among these MMPs, designing selective MMPIs is quite challenging. However, the variability and uniqueness of the S1' pockets of these MMPs make them promising targets for designing selective MMPIs. In this perspective, the overall structural aspects of medium-size S1' pocket MMPs including the unique binding patterns of enzyme-inhibitor interactions have been discussed in detail to acquire knowledge regarding selective inhibitor designing. This overall knowledge will surely be a curtain raiser for the designing of selective MMPIs as drug candidates in the future.