Related Experiment Video
Updated: Jul 23, 2026
11:10
Isolation of Human Islets from Partially Pancreatectomized Patients
Published on: July 30, 2011
Type 2 diabetes: principles of pathogenesis and therapy
Michael Stumvoll1, Barry J Goldstein, Timon W van Haeften
1Third Medical Department, University of Leipzig, Leipzig, Germany.
Lancet (London, England)
|April 13, 2005
Summary
Type 2 diabetes is a widespread epidemic. This study explores the complex mechanisms of insulin resistance and beta-cell dysfunction, alongside genetic factors and comprehensive management strategies.
Area of Science:
- Endocrinology and Metabolism
- Genetics
- Pharmacology
Background:
- Type 2 diabetes mellitus (T2DM) is a global epidemic characterized by insulin insensitivity and progressive beta-cell dysfunction.
- Insulin resistance is linked to obesity, while beta-cell function declines over time, preceding hyperglycemia.
- Proposed mechanisms for insulin resistance include elevated non-esterified fatty acids, inflammatory cytokines, adipokines, and mitochondrial dysfunction.
Purpose of the Study:
- To elucidate the multifaceted mechanisms underlying T2DM pathogenesis.
- To review the genetic underpinnings of T2DM.
- To outline current and comprehensive management approaches for T2DM.
Main Methods:
- Literature review of proposed mechanisms for insulin resistance and beta-cell dysfunction.
- Summary of identified genetic factors contributing to T2DM.
- Overview of therapeutic strategies including lifestyle, anti-hyperglycemic agents, and supportive therapies.
Main Results:
- Insulin resistance involves factors like obesity, fatty acids, cytokines, adipokines, and mitochondrial issues.
- Beta-cell dysfunction is associated with glucotoxicity, lipotoxicity, and amyloid formation.
- Genetic factors such as CAPN10, KCNJ11, PPARG, and IRS1 play a role in T2DM susceptibility.
Conclusions:
- T2DM pathogenesis is multifactorial, involving insulin resistance, beta-cell failure, and genetic predisposition.
- Effective management requires a combination of lifestyle modifications and pharmacological interventions.
- Further research into genetic components and therapeutic targets is crucial for combating the T2DM epidemic.
Related Concept Videos
01:22Diabetes Mellitus: Type 2 and Gestational
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...
01:20Pathophysiology of Diabetes
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, suggesting a...
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, suggesting a...
01:15Diabetes: Management and Pharmacotherapy
The therapy for diabetes aims to alleviate hyperglycemia-related symptoms, prevent acute metabolic decompensation, and reduce chronic end-organ complications. Glycemic control is evaluated through short-term (self-monitoring, continuous glucose monitoring) and long-term (A1c, fructosamine) metrics, enabling near real-time tracking of blood glucose levels and reflecting glycemic control over specific time frames.
Insulin remains the cornerstone of treatment for most patients with type 1 and many...
Insulin remains the cornerstone of treatment for most patients with type 1 and many...
01:26Type I Diabetes II: Pathophysiology
Type 1 diabetes mellitus arises from an immune-mediated destruction of pancreatic β-cells, resulting in an absolute deficiency of insulin. This process develops in genetically susceptible individuals when autoimmunity, environmental exposures, and immunologic dysregulation converge to trigger a targeted attack on the insulin-producing cells of the pancreas. The β-cells are located within the islets of Langerhans and are essential for regulating blood glucose by facilitating cellular uptake of...
01:26Type II Diabetes I: Introduction
Type 2 diabetes mellitus (T2DM) is a chronic metabolic disorder characterized by insulin resistance, in which target tissues such as the liver, muscle, and adipose tissue respond poorly to insulin. It is also associated with inadequate compensatory insulin secretion, where pancreatic β-cells fail to produce sufficient insulin. Together, these abnormalities lead to persistent hyperglycemia.EtiologyT2DM develops through a complex interaction of genetic predisposition and environmental or...
01:24Type II Diabetes II: Pathophysiology
PathophysiologyType 2 diabetes mellitus (T2DM ) is a chronic metabolic disorder characterized by insulin resistance and progressive pancreatic β-cell dysfunction, leading to impaired glucose homeostasis. It results from interactions among genetic predisposition, environmental factors, and metabolic stressors, such as overnutrition and a sedentary lifestyle.Insulin Resistance and Glucose DysregulationEarly T2DM involves insulin resistance in skeletal muscle, adipose tissue, and the liver.