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Related Concept Videos

Diabetes Mellitus: Type 2 and Gestational01:22

Diabetes Mellitus: Type 2 and Gestational

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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...
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Type I Diabetes I: Introduction01:12

Type I Diabetes I: Introduction

89
Type 1 diabetes mellitus is a chronic metabolic disorder characterized by an absolute deficiency of insulin resulting from the autoimmune destruction of pancreatic β-cells. Although it can occur at any age, it is most commonly diagnosed in childhood, adolescence, or early adulthood. The loss of insulin production impairs cellular glucose uptake, resulting in persistent hyperglycemia and necessitating lifelong insulin therapy.Autoimmune Destruction of β-CellsThe hallmark of type 1...
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Type I Diabetes II: Pathophysiology01:26

Type I Diabetes II: Pathophysiology

122
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...
122
Type II Diabetes I: Introduction01:26

Type II Diabetes I: Introduction

57
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...
57
Type II Diabetes II: Pathophysiology01:24

Type II Diabetes II: Pathophysiology

45
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.
45
Type II Diabetes Mellitus III: Clinical Manifestations and Diagnosis01:25

Type II Diabetes Mellitus III: Clinical Manifestations and Diagnosis

32
Type 2 diabetes mellitus develops gradually and is often asymptomatic in early stages.Clinical ManifestationsWhen symptoms appear, they include fatigue, blurred vision, pruritus, delayed wound healing, and recurrent infections, particularly candidal infections. Peripheral neuropathy may present as numbness or tingling in the extremities. Classic hyperglycemia symptoms—polyuria, polydipsia, and polyphagia—are less common. Most patients are overweight and frequently have associated...
32

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Related Experiment Video

Updated: May 7, 2026

Leprdb Mouse Model of Type 2 Diabetes: Pancreatic Islet Isolation and Live-cell 2-Photon Imaging Of Intact Islets
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[Prediabetes - 2009].

J Rybka1

  • 1Diabetologické centrum Interní kliniky IPVZ Praha a Krajské nemocnice T. Bati, a. s., Zlín. rybka@bnzlin.cz

Vnitrni Lekarstvi
|September 30, 2009
PubMed
Summary
This summary is machine-generated.

Prediabetes, a precursor to diabetes, involves impaired glucose metabolism. Early diagnosis and interventions like lifestyle changes or metformin can delay its progression to type 2 diabetes.

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Area of Science:

  • Endocrinology and Metabolism
  • Public Health

Context:

  • The historical understanding and classification of prediabetes have evolved significantly since the 1950s.
  • International guidelines from organizations like the WHO and ADA have refined diagnostic criteria and management strategies for prediabetes.
  • Growing evidence links hyperglycemia and metabolic dysfunction in prediabetes to increased atherosclerosis risk.

Purpose:

  • To review the historical development and current understanding of prediabetes.
  • To highlight the diagnostic criteria and therapeutic approaches for prediabetes.
  • To emphasize the continuum of risk between prediabetes and diabetes for microvascular and macrovascular outcomes.

Summary:

  • Prediabetes, encompassing Impaired Glucose Tolerance (IGT) and Impaired Fasting Glucose (IFG), is increasingly recognized as a distinct stage preceding type 2 diabetes.
  • Recent guidelines define prediabetes within the spectrum of diabetic disease, emphasizing its role in cardiovascular risk.
  • Management strategies include intensive lifestyle interventions and, for high-risk individuals, metformin therapy to prevent progression.

Impact:

  • Improved screening and diagnosis of prediabetes can lead to earlier intervention.
  • Lifestyle modifications and pharmacotherapy can mitigate the progression of prediabetes to type 2 diabetes.
  • Understanding prediabetes as part of a continuum with diabetes aids in managing long-term microvascular and macrovascular complications.