1. Effect of Vitamin D and Skeletal Muscle Mass on Prognosis of Patients with Diffuse Large B-Cell Lymphoma.
- Author
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Nakamura, Nobuhiko, Kanemura, Nobuhiro, Matsumoto, Takuro, Nakamura, Hiroshi, Shibata, Yuhei, Yamaguchi, Kimihiro, Kitagawa, Junichi, Ikoma, Yoshikazu, Suzaki, Tomomi, Kaneda, Yuto, Ninomiya, Soranobu, Takada, Eri, Hara, Takeshi, Tsurumi, Hisashi, and Shimizu, Masahito
- Abstract
This study investigated the prognostic impact of vitamin D deficiency and reduced skeletal muscle mass in diffuse large B-cell lymphoma (DLBCL) patients. A retrospective analysis of 186 newly diagnosed DLBCL patients from 2012 to 2022 was conducted, measuring serum 25-hydroxyvitamin D [25(OH)D] levels and the skeletal muscle index (SMI). Decreased vitamin D levels were linked to more severe DLBCL disease, with a median 25(OH)D concentration of 13 (4.0–27) ng/mL. Males in the group with a low SMI had a considerably lower 25(OH)D concentration. The optimal threshold of 25(OH)D levels for overall survival (OS) was 9.6 ng/mL, with lower values associated with a higher likelihood of recurrence and mortality. Multivariable analysis showed hazard ratios for OS of 1.4 [95% CI 0.77–2.5] for a low SMI and 3.2 [95% CI 1.8–5.8] for low 25(OH)D concentration. The combination of a low SMI and low vitamin D concentration resulted in the worst prognosis. Thus, low levels of vitamin D associated with disease progression significantly impact DLBCL prognosis, which can be further stratified by the SMI, providing valuable insights for patient management and potential therapeutic interventions. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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