Effect of Vitamin D Supplementation on Muscle Function in Patients With I131-Induced Hypothyroidism: A Pilot Randomized Trial.

Autor:	Maneewan S; Division of Endocrinology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand., Manosroi W; Division of Endocrinology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.; Faculty of Medicine, Center for Clinical Epidemiology and Clinical Statistics, Chiang Mai University, Chiang Mai 50200, Thailand., Jesadaporn P; Division of Geriatrics, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand., Phimphilai M; Division of Endocrinology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand., Tipduangta P; Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand.
Jazyk:	angličtina
Zdroj:	Journal of the Endocrine Society [J Endocr Soc] 2024 Apr 15; Vol. 8 (6), pp. bvae072. Date of Electronic Publication: 2024 Apr 15 (Print Publication: 2024).
DOI:	10.1210/jendso/bvae072
Abstrakt:	Background: There is a lack of data regarding the effect of vitamin D supplements in patients with I131-induced hypothyroidism. The primary aim of this study was to investigate the effect of vitamin D supplements on muscle function, and the secondary aim was to observe the effect on body composition, insulin resistance, and quality of life (QOL) in patients with I131-induced hypothyroidism. Methods: In this pilot randomized placebo-controlled trial, patients with I131-induced hypothyroidism on a stable dose of levothyroxine were enrolled and allocated into 2 groups to receive oral vitamin D 20 000 IU weekly or placebo for 24 weeks. Baseline biochemical values, body composition, handgrip strength, the 5 times sit-to-stand test (5TSTS), homeostatic model assessment for insulin resistance (HOMA-IR), and QOL were measured before intervention and after 3 and 6 months in both groups. Mixed model regression analysis was used to compare the outcomes between the 2 groups. Significance was set at P value of < .05. Results: There were 20 participants in each group. The time taken for 5TSTS in the vitamin D group was significantly lower than the placebo group at 3 ( P = .032) and 6 months ( P = .006). Other outcomes, including handgrip strength, body composition, HOMA-IR, and QOL, showed no significant difference between the 2 groups. Conclusion: A supplement of vitamin D2 at 20 000 IU per week for 24 weeks could help improve performance in 5TSTS in patients with I131-induced hypothyroidism. (© The Author(s) 2024. Published by Oxford University Press on behalf of the Endocrine Society.)
Databáze:	MEDLINE
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