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Related Concept Videos

Diabetes Mellitus: Overview and Type I Subtype01:22

Diabetes Mellitus: Overview and Type I Subtype

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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...
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Pathophysiology of Diabetes01:20

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

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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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Insulin Secretory Vesicles01:05

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Insulin secretory vesicles release insulin to stimulate blood glucose uptake and regulate carbohydrate metabolism. When the blood glucose levels increase, glucose enters the pancreatic β-islet cells through glucose transporters. Once inside, glucose is metabolized through glycolysis, the citric acid cycle, and the electron transport chain, producing ATP. This increase in ATP concentration closes ATP-sensitive potassium channels, leading to depolarization of the membrane and the opening of...
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Glucose Homeostasis: Pancreatic Islets and Insulin Secretion01:27

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The pancreatic islets comprising only 1%-2% of the volume are highly vascularized and innervated mini-organs. They contain five endocrine cell types, including β cells that secrete insulin, which is synthesized as a single polypeptide chain, preproinsulin, processed to proinsulin, and finally to insulin and C-peptide. This process is complex and regulated, involving the Golgi complex, the endoplasmic reticulum, and the secretory granules of the β cell.
Insulin and C-peptide are...
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Insulin: The Receptor and Signaling Pathways01:28

Insulin: The Receptor and Signaling Pathways

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Insulin action is mediated through a receptor tyrosine kinase, akin to the IGF-1 receptor. The number of receptors per cell varies significantly, from 40 on erythrocytes to 300,000 on adipocytes and hepatocytes. The insulin receptor consists of linked α/β subunit dimers, forming a heterotetramer glycoprotein with two extracellular α subunits and two β subunits spanning the membrane. The α subunits inhibit the inherent tyrosine kinase activity of the β subunits, but...
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Related Experiment Video

Updated: Nov 1, 2025

Detection of Inflammasome Activation and Pyroptotic Cell Death in Murine Bone Marrow-derived Macrophages
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Inflammasomes and Type 1 Diabetes.

James Alexander Pearson1, F Susan Wong1, Li Wen2

  • 1Diabetes Research Group, Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom.

Frontiers in Immunology
|June 28, 2021
PubMed
Summary

The gut microbiota influences Type 1 diabetes risk. Inflammasomes, key immune sensors, are implicated in this process and may offer therapeutic targets for diabetes prevention.

Keywords:
NOD micehumansinflammasomesmicrobiotatype 1 diabetes

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Area of Science:

  • Immunology
  • Microbiology
  • Endocrinology

Background:

  • The gut microbiota plays a crucial role in modulating susceptibility to Type 1 diabetes (T1D).
  • Associations exist between microbiota composition, genetic predisposition, and immune responses in T1D.
  • Signaling pathways mediating these microbial effects, especially in humans, require further investigation.

Purpose of the Study:

  • To review the role of inflammasomes in Type 1 diabetes susceptibility.
  • To explore inflammasome activation in response to microbial stimuli in the context of T1D.
  • To identify potential therapeutic strategies targeting inflammasomes for T1D.

Main Methods:

  • Literature review focusing on inflammasomes and Type 1 diabetes.
  • Analysis of genetic associations with inflammasome components.
  • Summary of current knowledge on inflammasome priming and activation by microbial ligands.
  • Overview of existing inflammasome inhibitors.

Main Results:

  • Inflammasomes are implicated in T1D pathogenesis through genetic associations and immune modulation.
  • Microbial ligands can prime and activate inflammasomes, influencing autoimmune responses.
  • Understanding inflammasome activation is key to developing immunotherapies for T1D.

Conclusions:

  • Inflammasomes are critical mediators linking microbiota and Type 1 diabetes.
  • Targeting inflammasome pathways presents a promising avenue for T1D immunotherapeutics.
  • Further research into inflammasome inhibitors could lead to novel treatments for T1D.