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Related Concept Videos

Diabetes Mellitus: Introduction01:26

Diabetes Mellitus: Introduction

Diabetes mellitus consists of chronic metabolic disorders characterized by persistent hyperglycemia. This elevated blood glucose results from defects in insulin secretion, impaired insulin action, or both. Insulin, produced by pancreatic β-cells, is essential for maintaining glucose homeostasis by facilitating cellular glucose uptake for energy or storage. Disruptions in insulin production or function lead to glucose accumulation in the bloodstream, causing the clinical features and long-term...
Pathophysiology of Diabetes01:20

Pathophysiology 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...
Diabetes Mellitus: Overview and Type I Subtype01:22

Diabetes Mellitus: Overview and Type I Subtype

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 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...
Diabetes: Symptoms, Diagnosis, and Complications01:15

Diabetes: Symptoms, Diagnosis, and Complications

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 based on...

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Updated: Jun 6, 2026

Simple Continuous Glucose Monitoring in Freely Moving Mice
03:25

Simple Continuous Glucose Monitoring in Freely Moving Mice

Published on: February 24, 2023

Is diabetes mellitus a continuous spectrum?

Barbara Brooks-Worrell1, Jerry P Palmer

  • 1Department of Medicine, DVA Puget Sound Health Care System, Seattle, WA 98108, USA. bbrooks@u.washington.edu

Clinical Chemistry
|November 12, 2010
PubMed
Summary
This summary is machine-generated.

The classification of diabetes needs reevaluation. New evidence shows immune system involvement in type 2 diabetes, similar to type 1 diabetes.

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Published on: January 4, 2018

Area of Science:

  • Endocrinology
  • Immunology
  • Genetics

Background:

  • Historically, diabetes mellitus was classified as type 1 (autoimmune) or type 2 (metabolic).
  • Emerging evidence highlights immune system involvement in type 2 diabetes pathophysiology.
  • This necessitates a reevaluation of the current diabetes classification system.

Purpose of the Study:

  • To reevaluate the current classification of diabetes mellitus.
  • To explore similarities and differences in pathogenesis, pathophysiology, and genetics between type 1 and type 2 diabetes.
  • To propose a resolution for the existing classification dilemma.

Main Methods:

  • Comparative analysis of existing literature on type 1 and type 2 diabetes.
  • Review of evidence regarding immune system involvement in type 2 diabetes.
  • Genetic and pathophysiological data analysis.

Main Results:

  • Type 1 and type 2 diabetes share similarities and differences in pathogenesis, pathophysiology, and genetics.
  • Immune system involvement is increasingly recognized in type 2 diabetes.

Conclusions:

  • The current diabetes classification requires revision due to overlapping pathophysiological mechanisms.
  • A unified understanding of diabetes, acknowledging immune and metabolic components, is proposed.
  • This research offers a new perspective on diabetes classification.