相关实验视频
Updated: Jun 28, 2025

07:32
Murine Fecal Isolation and Microbiota Transplantation
Published on: May 26, 2023
4.0K
肠道微生物群与2型糖尿病发病之间的关联:一个双样本的门德尔随机化研究
Hongyan Zhang1,2, Li Ma3, Wenbo Peng1
1Department of Traditional Chinese Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Frontiers in cellular and infection microbiology
|April 10, 2024
概括
这项研究探讨了肠道微生物群.
科学领域:
- 微生物组研究 微生物组研究
- 代谢性疾病流行病学
- 遗传流行病学遗传流行病学
背景情况:
- 肠道微生物群 (GM) 在2型糖尿病 (T2DM) 中起着作用,但之前的孟德尔随机化 (MR) 研究仅限于基因级.
- 在物种层面研究转基因对理解特定微生物对T2DM病原体的贡献至关重要.
- 识别与T2DM相关的特定的转基因种类和途径可以为有针对性的干预提供信息.
研究的目的:
- 使用孟德尔随机化研究肠道微生物群,特别是在物种层面,与2型糖尿病 (T2DM) 之间的因果关系.
- 确定与T2DM风险增加或降低相关的特定肠道微生物物种.
- 为进一步研究特定的转基因种类和T2DM中的途径的作用提供证据.
主要方法:
- 一个采用两样本的孟德尔随机化 (MR) 研究,利用全基因组关联研究 (GWAS) 肠道微生物群 (MiBioGen,DMP) 和T2DM (FinnGen) 的总结统计数据.
- 采用逆变量加权 (IVW),MR-Egger和加权中位数方法来评估因果关系.
- 在异质性测试中使用了科克兰的Q统计,在多重测试调整中使用了邦费罗尼校正.
主要成果:
- 增加家族 *Oxalobacteraceae* 和属 *Oxalobacter* 的相对丰度与T2DM的更高几率有关 (OR = 1.0704,OR = 1.0874).
- 该物种的便与T2DM呈现负相关性 (OR = 0.9460).
- 还观察到 * 贝塔蛋白细菌 * * 乳杆菌家族 * * 乳杆菌家族 * * 和 * finegoldii * * 和 * longum * * 种类与 T2DM 有显著的关联 (P < 0.05).
结论:
- 肠道微生物群,包括诸如*faecis*,*finegoldii*和*longum*等物种,与T2DM有潜在的因果关系.
- 特定的微生物种群,如*Oxalobacteraceae*和*Oxalobacter*,可能会增加T2DM风险.
- 需要进一步的研究来澄清这些发现,特别是那些与以前的研究似乎相矛盾的研究.
相关概念视频
Diabetes Mellitus: Type 2 and Gestational
2.3K
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...
2.3K
Pathophysiology of Diabetes
924
Diabetes mellitus is a chronic metabolic disorder characterized by hyperglycemia. The four categories of diabetes are type 1 diabetes, type 2 diabetes, other specific types of diabetes, and gestational diabetes.
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
924
Genome-wide Association Studies-GWAS
13.4K
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...
13.4K
Diabetes Mellitus: Overview and Type I Subtype
2.6K
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...
2.6K
Anatomy of the Intestines
71.8K
Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
71.8K
Carbohydrate Metabolism
11.1K
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...
11.1K

