身体活动,久坐不动行为和2型糖尿病:门德尔的随机化分析分析
Shuai Yuan1, Xue Li2, Qianwen Liu3
1Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, 17165, Sweden.
Journal of the Endocrine Society
|July 7, 2023
概括
这项研究发现,中度至强度的体力活动 (MVPA) 降低了2型糖尿病的风险,而休屏幕时间 (LST) 增加了风险. 这些影响与肥胖,瘦身量和炎症有关.
科学领域:
- 遗传学 遗传学 是一个
- 流行病学 流行病学
- 代谢疾病 代谢疾病
背景情况:
- 身体活动,不活动和2型糖尿病风险之间的关系尚未完全理解.
- 之前的研究已经产生了关于因果关系和潜在途径的不确定的结果.
研究的目的:
- 调查中度至强度体力活动 (MVPA) 和休屏幕时间 (LST) 与2型糖尿病 (T2DM) 的因果关系.
- 探索潜在的调解途径,包括脂肪,瘦身量,血糖特征和炎症.
主要方法:
- 使用孟德尔的随机化 (MR) 方法与大规模的全基因组关联研究数据.
- 从超过60万个人的遗传变量中选择了MVPA和LST的遗传变异作为工具变量.
- 分析了来自898,130个个体的T2DM数据和来自大型队伍的中间表型.
主要成果:
- 增加的MVPA与T2DM风险降低有关 (OR 0.70;P = .002).
- 增加的LST与较高的T2DM风险相关 (OR 1.45;P = 7.62 × 10^-11).
- 关联部分由脂肪指标,瘦肉量和C-反应蛋白介导,MVPA也受到禁食胰岛素的影响.
结论:
- 在较高的MVPA和较低的T2DM风险之间建立了可能的因果关系.
- 表明增加LST在T2DM风险中的因果作用.
- 强调肥胖,瘦身量和慢性炎症是这些关系中的关键调解因素.
相关概念视频
Randomized Experiments
7.0K
The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally assigned. Randomization is meant to eliminate selection bias and balance known and unknown confounding factors so that the control group is similar to the treatment group as much as possible. A computer program and a random number generator can be used to assign participants to groups in a way that minimizes bias.
Simple randomization
Simple...
Simple randomization
Simple...
7.0K
Diabetes Mellitus: Type 2 and Gestational
2.5K
Type 2 diabetes, characterized by insulin resistance, arises when the insulin receptors on cells lose responsiveness to insulin, diminishing the cell's capacity to take up glucose, resulting in elevated blood glucose levels. To receive a diagnosis of Type 2 diabetes, a series of blood glucose tests are necessary to assess whether the blood glucose falls within normal parameters. If the result is out of the normal range, a patient may be diagnosed as prediabetic or diabetic, depending on the...
2.5K
Genome-wide Association Studies-GWAS
13.6K
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
13.6K
Regression 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
Carbohydrate Metabolism
11.3K
Carbohydrates are polymers composed of molecules containing atoms of carbon, hydrogen and oxygen. One gram of carbohydrate can provide four kilo-calories of energy, which makes it the most efficient instant energy source.
Starch accounts for approximately 60% of the carbohydrates consumed by humans. Since amylase enzymes cannot function in the stomach's acidic environment, starch can only be digested in the mouth and small intestine. Simple sugars are found naturally in milk and fruits in...
Starch accounts for approximately 60% of the carbohydrates consumed by humans. Since amylase enzymes cannot function in the stomach's acidic environment, starch can only be digested in the mouth and small intestine. Simple sugars are found naturally in milk and fruits in...
11.3K
Diabetes Mellitus: Overview and Type I Subtype
2.8K
Diabetes mellitus is a chronic metabolic disorder characterized by high blood glucose levels due to inadequate insulin production, insulin resistance, or both. The condition affects millions worldwide and can significantly impact their health and quality of life.
Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the body is unable to produce sufficient insulin, and individuals with...
Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the body is unable to produce sufficient insulin, and individuals with...
2.8K


