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Related Concept Videos

Type I Diabetes I: Introduction01:12

Type I Diabetes I: Introduction

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 diabetes is an...
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...
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 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...
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...

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Related Experiment Video

Updated: Jul 8, 2026

Electrochemiluminescence Assays for Human Islet Autoantibodies
09:15

Electrochemiluminescence Assays for Human Islet Autoantibodies

Published on: March 23, 2018

Autoantibodies in type 1 diabetes.

Craig E Taplin1, Jennifer M Barker

  • 1Barbara Davis Center for Childhood Diabetes, University of Colorado Health Sciences Center, Aurora, CO 80045-6511, USA.

Autoimmunity
|January 8, 2008
PubMed
Summary

Type 1 diabetes (T1DM) results from immune-mediated pancreatic beta-cell destruction. Autoantibodies, particularly multiple types, predict progression to symptomatic hyperglycemia and overt diabetes.

Area of Science:

  • Endocrinology
  • Immunology
  • Genetics

Background:

  • Diabetes mellitus is characterized by hyperglycemia, with Type 1 diabetes (T1DM) being an autoimmune disease.
  • T1DM involves immune-mediated destruction of pancreatic beta-cells, leading to insulin deficiency.
  • Genetic factors, particularly HLA region genotypes like HLA-DR3/4 DQ8, significantly contribute to T1DM risk.

Purpose of the Study:

  • To review the autoimmune basis of Type 1 diabetes.
  • To discuss the role of autoantibodies in T1DM pathogenesis and prediction.
  • To highlight the genetic associations with T1DM.

Main Methods:

  • Review of existing literature on T1DM pathogenesis.
  • Analysis of autoantibody profiles in relation to disease progression.

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A High-Throughput Multiplexed Screening for Type 1 Diabetes, Celiac Diseases, and COVID-19
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Accelerated Type 1 Diabetes Induction in Mice by Adoptive Transfer of Diabetogenic CD4+ T Cells
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Accelerated Type 1 Diabetes Induction in Mice by Adoptive Transfer of Diabetogenic CD4+ T Cells

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  • Examination of genetic risk factors, including HLA associations.

    • Main Results:

    • Autoimmune destruction of beta-cells is central to T1DM development.
    • Multiple autoantibodies (ICA, IAA, GAD, IA2) are associated with T1DM.
    • The number of detected autoantibodies, not individual types, is most predictive of progression.

    Conclusions:

    • T1DM is an autoimmune disorder with significant genetic predisposition.
    • Autoantibody profiling is crucial for understanding T1DM progression.
    • Early identification of autoantibodies may aid in predicting diabetes onset.