Understanding muscle pathology reports is important to best treat rheumatology patients. Peter Pytel, MD, shared pearls of wisdom specific to the autoimmune inflammatory myopathies and gave a detailed review of what rheumatologists need to know, during the 2022 ACR Education Exchange.
Obesity is a well-known risk factor for knee osteoarthritis (OA), but data regarding the association of body composition (fat and muscle mass) with the risk of knee OA are lacking. Thus, it is not clear whether the effects of BMI, typically interpreted as effects of obesity, are truly due to excess adiposity rather than to overall loading due to the combined weight of body mass. Misra et al. undertook this study to examine the longitudinal association of body composition categories based on fat and muscle mass with the risk of incident knee OA…
Low muscle density due to the accumulation of intramuscular fat has been observed in RA patients and is associated with higher disease activity. New research sought to understand the relationship between muscle density, physical function and strength independent of body composition, including such factors as total and visceral adiposity. The results: Compared with healthy controls, low muscle density in RA patients was associated with low muscle mass, excess adiposity and greater disability…
CHICAGO—On a Saturday morning in Chicago, Chester V. Oddis, MD, director of the Myositis Center at the University of Pittsburgh, explained to a crowded room of about 500 rheumatologists attending the ACR’s State-of-the-Art Clinical Symposium in April how best to use myositis autoantibodies in clinical care. He began with an overview of the different types of…
WASHINGTON, D.C.—Ongoing investigation into the disease mechanisms of inflammatory myopathies is generating needed information for the development of potential future therapeutic targets, and current data from clinical trials have shed light on myopathy concerns in different cohorts of patients. These issues were all discussed in a session titled Muscle Biology, Myositis, and Myopathies I during…
SAN FRANCISCO—An athletic 19-year-old male has an episode of rhabdomyolysis, a breakdown of muscle tissue that leads to contents of muscle fiber in the blood, after weight-lifting and basketball drills. But his labs come back normal. He cuts down on his exercise, but has a second episode four months later, then finally sees a rheumatologist…