2型糖尿病的遗传研究,以及糖尿病的微血管并发症
Minako Imamura1,2, Shiro Maeda1,2
1Department of Advanced Genomic and Laboratory Medicine, Graduate School of Medicine, University of the Ryukyus, Nishihara-Cho, Okinawa 903-0215 Japan.
Diabetology international
|October 29, 2024
概括
全基因组关联研究 (GWAS) 确定了800多种2型糖尿病 (T2D) 变体,但大多数研究都集中在欧洲人口上. 研究正在扩大到不同的种族和微血管并发症,以更好地应用多基因风险评分 (PRS).
科学领域:
- 遗传学 遗传学 是一个
- 基因组学就是基因组学.
- 流行病学 流行病学
背景情况:
- 全基因组关联研究 (GWAS) 已经确定了许多与2型糖尿病 (T2D) 等复杂疾病相关的遗传变异.
- 大多数T2D遗传发现来自欧洲人群,这可能限制了概括性.
- 在非欧洲群体中发现了特定于人口的T2D位点,突出显示了基因风险的种族多样性.
研究的目的:
- 审查2型糖尿病 (T2D) 和其微血管并发症的遗传发现的现状.
- 强调在遗传学研究中需要更广泛的民族代表性.
- 突出多基因风险评分 (PRSs) 在不同人群中的潜力和局限性.
主要方法:
- 对2型糖尿病 (T2D) 的全基因组关联研究 (GWAS) 现有文献的综述.
- 分析了在包括日本人和东亚人群在内的各种种族群体中进行的研究结果.
- 对糖尿病微血管并发症的遗传敏感位点研究的审查.
主要成果:
- 截至2023年,GWAS确定了大约800种T2D相关变异,主要在欧洲人中.
- 在非欧洲人群中发现人群特异性的T2D位点.
- 通过GWAS通过糖尿病的微血管并发症的遗传位置的有限识别.
结论:
- 加强GWAS的种族多样性对于公平的PRS发展至关重要.
- 需要进一步的研究来了解糖尿病微血管并发症的遗传结构.
- 在所有族群中扩大PRS的适用性是未来的关键方向.
相关概念视频
Diabetes Mellitus: Type 2 and Gestational
2.2K
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...
2.2K
Pathophysiology of Diabetes
874
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,...
874
Diabetes: Symptoms, Diagnosis, and Complications
511
For most patients, experiencing several weeks of polyuria, polydipsia, fatigue, and significant weight loss may indicate the presence of diabetes. Furthermore, adults displaying the phenotypic appearance of type 2 diabetes (particularly those who are obese and not initially insulin-requiring), may have islet cell autoantibodies, suggesting autoimmune-mediated β cell destruction and a diagnosis of latent autoimmune diabetes of adults (LADA). The categorization of glucose homeostasis is...
511
Diabetes Mellitus: Overview and Type I Subtype
2.5K
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...
2.5K
Carbohydrate Metabolism
10.8K
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...
10.8K
Genome-wide Association Studies-GWAS
12.6K
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...
12.6K


