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Related Concept Videos

Type II Diabetes II: Pathophysiology01:24

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

Type II Diabetes Mellitus III: Clinical Manifestations and Diagnosis

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 hypertension...
Diabetes Mellitus: Type 2 and Gestational01:22

Diabetes 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...
Type I Diabetes II: Pathophysiology01:26

Type 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...
Type I Diabetes III: Clinical Manifestations01:19

Type I Diabetes III: Clinical Manifestations

Type 1 diabetes mellitus typically presents with rapid-onset symptoms due to the body’s inability to utilize glucose in the absence of insulin. Since insulin is required for glucose uptake into cells, its deficiency leads to hyperglycemia and cellular energy deprivation, resulting in characteristic clinical features.Polyuria and PolydipsiaOne of the earliest, most prominent symptoms is polyuria (excessive urination). When blood glucose concentrations rise above the renal threshold, the kidneys...
Type II Diabetes I: Introduction01:26

Type 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...

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Related Experiment Video

Updated: Jun 1, 2026

The Extraction of Liver Glycogen Molecules for Glycogen Structure Determination
04:50

The Extraction of Liver Glycogen Molecules for Glycogen Structure Determination

Published on: February 8, 2022

Molecular structural differences between type-2-diabetic and healthy glycogen.

Mitchell A Sullivan1, Jiong Li, Chuanzhou Li

  • 1Centre for Nutrition & Food Sciences, The University of Queensland , Brisbane, Qld 4072, Australia.

Biomacromolecules
|May 20, 2011
PubMed
Summary
This summary is machine-generated.

Researchers found significant structural differences in liver glycogen between healthy and type 2 diabetic mice. Healthy mice had larger glycogen particles, offering new insights into type 2 diabetes mechanisms and glucose regulation.

More Related Videos

Determination of Glucan Chain Length Distribution of Glycogen Using the Fluorophore-Assisted Carbohydrate Electrophoresis (FACE) Method
06:13

Determination of Glucan Chain Length Distribution of Glycogen Using the Fluorophore-Assisted Carbohydrate Electrophoresis (FACE) Method

Published on: March 31, 2022

Related Experiment Videos

Last Updated: Jun 1, 2026

The Extraction of Liver Glycogen Molecules for Glycogen Structure Determination
04:50

The Extraction of Liver Glycogen Molecules for Glycogen Structure Determination

Published on: February 8, 2022

Determination of Glucan Chain Length Distribution of Glycogen Using the Fluorophore-Assisted Carbohydrate Electrophoresis (FACE) Method
06:13

Determination of Glucan Chain Length Distribution of Glycogen Using the Fluorophore-Assisted Carbohydrate Electrophoresis (FACE) Method

Published on: March 31, 2022

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Metabolic Diseases

Background:

  • Glycogen serves as a crucial glucose buffer in animals.
  • Type 2 diabetes is characterized by impaired glucose metabolism.

Purpose of the Study:

  • To investigate structural differences in native liver glycogen between healthy and type 2 diabetic mice.
  • To correlate glycogen structure with molecular size and branching patterns.

Main Methods:

  • Utilized multiple-detector size exclusion chromatography.
  • Employed fluorophore-assisted carbohydrate electrophoresis.
  • Analyzed both whole and enzymatically debranched liver glycogen.

Main Results:

  • Observed fundamental structural differences in glycogen from healthy versus db/db mice.
  • Healthy mouse glycogen exhibited a greater population of large particles.
  • Healthy glycogen contained more alpha (α) particles compared to db/db mouse glycogen.

Conclusions:

  • Glycogen structural variations are linked to type 2 diabetes.
  • These findings provide a novel perspective on the pathophysiology of type 2 diabetes.
  • Understanding glycogen structure may reveal new therapeutic targets.