Cardiovascular disease is the leading cause of death in patients suffering from lupus, an autoimmune disease in which our immune system attacks our own tissues and organs, the heart, blood, lung, joints, brain, and skin. Lupus myocarditis—inflammation of the heart muscle—can be very serious because the inflammation alters the regularity of the rhythm and strength of the heartbeat. However, the mechanisms underlying this complex disease are poorly understood and difficult to study.
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