不同年龄段的茶饮和骨矿物质密度之间的因果关系 - - 孟德尔的随机化研究
Ting Shen1, Yining Guan1, Jiaru Cai1
1Clinical Medicine. Shulan International Medical College. Zhejiang Shuren University.
Nutricion hospitalaria
|April 8, 2025
概括
饮茶对身体的骨矿物质密度 (BMD) 有积极的因果作用. 这种益处特别在45-60岁的人群中观察到,这表明茶饮可能有助于降低这一群体的骨质疏松症风险.
科学领域:
- 营养学就是营养学.
- 骨健康研究 骨健康研究
- 流行病学 流行病学
背景情况:
- 骨矿物质密度 (BMD) 是骨质疏松症和骨折风险的关键指标.
- 饮食茶饮食会影响BMD的变化,但潜在的机制尚不清楚.
- 了解茶饮和BMD之间的因果关系对于公众健康至关重要.
研究的目的:
- 通过两样本的门德尔随机化 (MR) 方法,研究茶饮量和骨质量之间的因果关系.
- 为了确定茶饮对BMD的影响是否在不同年龄组之间有所不同.
主要方法:
- 从英国生物银行 (n=447,485) 采集的茶摄入量 (31个SNP) 的遗传数据进行了两种样本的MR分析.
- 骨质量数据 (全身和特定年龄) 来自终身遗传队列研究 (n=66,628).
- 使用MR-Egger,逆方差加权 (IVW),加权中位数和加权模式方法进行了因果推断.
主要成果:
- 饮茶显示对全身 BMD 有积极的因果作用.
- 这种积极的关联仅在45-60岁年龄组中具有意义.
- 没有检测到显著的遗传性或异质性,这支持了研究结果的稳定性.
结论:
- 茶的摄入对整体的BMD有积极的因果影响.
- 茶对骨质疏松症的有益作用是特定于年龄的,主要受益于45-60岁的人群.
- 这些发现表明,茶饮可能在减轻中年成人骨质疏松症和骨折风险方面发挥作用.
更多相关视频
04:24Proper Positioning and Restraint of a Rat Hind Limb for Focused High Resolution Imaging of Bone Micro-architecture Using In Vivo Micro-computed Tomography
Published on: November 22, 2017
9.9K
07:12Semiautomated Longitudinal Microcomputed Tomography-based Quantitative Structural Analysis of a Nude Rat Osteoporosis-related Vertebral Fracture Model
Published on: September 28, 2017
8.1K
相关概念视频
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
01:10Nature 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
01:40Bone Remodeling
38.0K
Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
38.0K
01:25Role of Vitamins in Maintaining Bone Health
3.1K
The growth and maintenance of bone are regulated by a combination of nutritional factors, including vitamins, such as vitamin A, B12, C, D, and K.
Vitamin A
Vitamin A is involved in the process of bone remodeling. Retinoic acid, the active metabolite of Vitamin A, has nuclear receptors in osteoblasts and osteoclasts, which are involved in bone remodeling.
Vitamin B12
Vitamin B12 acts as a cofactor during the formation of osteoblast-related proteins, such as osteocalcin. Vitamin B12 plays a role...
Vitamin A
Vitamin A is involved in the process of bone remodeling. Retinoic acid, the active metabolite of Vitamin A, has nuclear receptors in osteoblasts and osteoclasts, which are involved in bone remodeling.
Vitamin B12
Vitamin B12 acts as a cofactor during the formation of osteoblast-related proteins, such as osteocalcin. Vitamin B12 plays a role...
3.1K
01:31Essential Minerals for Bone Health
3.7K
The minerals contained in all of the food we consume are essential for our organ systems. However, certain essential minerals, such as calcium, phosphorus, magnesium, manganese, and fluoride, largely affect bone health.
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
3.7K
01:55Bone Structure
47.8K
Within the skeletal system, the structure of a bone, or osseous tissue, can be exemplified in a long bone, like the femur, where there are two types of osseous tissue: cortical and cancellous.
47.8K