Key clinical point: Vitamin D status was inversely associated with severe sarcopenia, impaired physical performance, and decreased skeletal muscle mass in females with rheumatoid arthritis (RA), highlighting the need to investigate vitamin D supplementation as a therapeutic strategy for sarcopenic patients with RA.
Major finding: Low 25-hydroxyvitamin D (25[OH])D status (16.0 ng/mL or lower) was significantly associated with a high prevalence of severe sarcopenia (adjusted odds ratio [aOR], 6.00; P = .0006) in females with RA. Low physical performance (aOR, 2.65; P = .0043) and skeletal muscle mass (aOR, 2.54; P = .027) were the major components of sarcopenia linked with a low serum 25(OH)D level.
Study details: This was a cross-sectional study involving 156 female outpatients with RA.
Disclosures: This study was funded by AMED and Daiichi Sankyo Co. Ltd. Several authors reported receiving research grants and speaker’s fees from various sources including Daiichi Sankyo. Some of the authors including the lead author declared no conflict of interests.
Source: Minamino H et al. Sci Rep. 2021 Oct 14. doi: 10.1038/s41598-021-99894-6 .