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2023 Fiscal Year Final Research Report

Exploring the possibility of treating sarcopenia with vitamin D supplementation

Research Project

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Project/Area Number 20K07803
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52010:General internal medicine-related
Research InstitutionOsaka University

Principal Investigator

Akasaka Hiroshi  大阪大学, 医学部附属病院, 助教 (70468081)

Co-Investigator(Kenkyū-buntansha) 樂木 宏実  大阪大学, 大学院医学系研究科, 招へい教授 (20252679)
杉本 研  大阪大学, 大学院医学系研究科, 招へい教授 (20437403)
Project Period (FY) 2020-04-01 – 2024-03-31
Keywords骨格筋量 / 握力 / 歩行速度 / 高齢者
Outline of Final Research Achievements

In recent years, vitamin D has been known to affect skeletal muscle. Vitamin D deficiency is frequent in our country. We examined the association of vitamin D with the appendicular skeletal muscle index (SMI), grip strength, and walking speed in a cohort study of community-dwelling older people. In the 70s, vitamin D was significantly associated with SMI and grip strength. SMI was also associated with vitamin D after adjustment for sex, BMI, and serum albumin. In the 90s, vitamin D was significantly associated with SMI and grip strength. However, SMI was not independently associated with vitamin D in multivariate regression analysis. The results indicate that maintaining vitamin D levels may contribute to maintaining skeletal muscle mass.

Free Research Field

老年内科学

Academic Significance and Societal Importance of the Research Achievements

ビタミンDは一般的に骨代謝を改善することが知られている。本研究により、ビタミンDは骨のみならず筋にも影響していることが明らかになった。加齢に伴う骨格筋減少症であるサルコペニアに対しては、未だ有効な介入方法が明らかになっていない。本研究の結果は、サルコペニアに対して、ビタミンDを維持することが有効である可能性を示すものであり、ビタミンDの補充は、サルコペニアの治療法の候補となりうる。

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Published: 2025-01-30  

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