血清25(OH) D水平对尾肌肉质量的因果作用:来自NHANES数据和门德尔随机化分析的证据
Qian Ren1, Jinrong Liang2, Yanmei Su3
1Department of Clinical Nutrition, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Journal of cachexia, sarcopenia and muscle
|March 31, 2025
概括
这项研究发现,较高的血清维生素D (25-氧维生素D) 水平在男性和女性中因果上会增加尾肌肉质量 (AMM). 需要进一步的研究,以了解这种维生素D和肌肉质量联系背后的生物机制.
科学领域:
- 内分泌学 在内分泌学.
- 营养科学 营养科学
- 遗传学 是一个遗传学.
背景情况:
- 维生素D水平较低与肌肉质量减少有关,但因果关系尚不清楚.
- 这项研究调查了血清25-基维生素D [25(OH) D]和尾肌肉质量 (AMM) 之间的因果关系.
研究的目的:
- 为了确定血清25(OH) D是否因果影响AMM.
- 使用观测数据和孟德尔随机化来探索这种关系.
主要方法:
- 使用了国家健康和营养检查调查 (NHANES) 数据 (n=11,242) 与多变量线性回归.
- 使用英国生物库数据 (n=417,580) 采用双样本孟德尔随机化 (MR) 方法,其中167个遗传变异作为血清25(OH) D. 的仪器变量.
- 进行了单变量和多变量MR (MVMR) 分析.
主要成果:
- 根据NHANES的数据,25(OH) D和AMM之间存在积极的关联,在男性中更强.
- 无变MR表明在男性和总人口中基因预测的25(OH) D和AMM之间存在正相关性.
- MVMR证实了25(OH) D对AMM在总人口,男性和女性的积极因果作用.
结论:
- 血清25(OH) D度对尾肌肉质量有积极的因果作用.
- 需要进一步的研究来阐明生物机制,并评估维生素D对肌肉质量的干预措施.
- 研究结果表明,维生素D在维持或增加肌肉质量方面起着直接作用.
相关概念视频
01:20Study Designs in Epidemiology
146
Epidemiological study designs are fundamental tools for investigating the distribution, determinants, and control of health conditions in populations. They help researchers understand the relationships between exposures and outcomes, and they broadly fall into two categories: "observational" and "experimental" studies.
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and...
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and...
146
01:10Nature and Nurture
20.3K
Many human characteristics, like height, are shaped by both nature—in other words, by our genes—and by nurture, or our environment. For example, chronic stress during childhood inhibits the production of growth hormones and consequently reduces bone growth and height. Scientists estimate that 70-90% of variation in height is due to genetic differences among individuals, and 10-30% of variation in height is due to differences in the environments that individuals experience,...
20.3K
01:29Bone Disorders
3.4K
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
3.4K
01:33Pleiotropy
38.4K
Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
38.4K
01:52Regression Toward the Mean
6.3K
Regression toward the mean (“RTM”) is a phenomenon in which extremely high or low values—for example, and individual’s blood pressure at a particular moment—appear closer to a group’s average upon remeasuring. Although this statistical peculiarity is the result of random error and chance, it has been problematic across various medical, scientific, financial and psychological applications. In particular, RTM, if not taken into account, can interfere when...
6.3K