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Related Concept Videos

Cell Specific Gene Expression01:58

Cell Specific Gene Expression

Multicellular organisms contain a variety of structurally and functionally distinct cell types, but the DNA in all the cells originated from the same parent cells. The differences in the cells can be attributed to the differential gene expression. Liver cells, whose functions include detoxification of blood, production of bile to metabolize fats, and synthesis of proteins essential for metabolism, must express a specific set of genes to perform their functions. Gene expression also varies with...
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 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...
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...
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.
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: Jun 22, 2026

Single-cell RNA Sequencing and Analysis of Human Pancreatic Islets
11:34

Single-cell RNA Sequencing and Analysis of Human Pancreatic Islets

Published on: July 18, 2019

Gene expression analysis in diabetes research.

Peter White1, Klaus H Kaestner

  • 1The Research Institute at Nationwide Children's Hospital and The Ohio State University, USA.

Methods in Molecular Biology (Clifton, N.J.)
|June 9, 2009
PubMed
Summary
This summary is machine-generated.

This chapter details microarray experiments for diabetes research using pancreatic islets. It emphasizes careful design, replicates, and analysis for high-quality gene expression profiling.

Related Experiment Videos

Last Updated: Jun 22, 2026

Single-cell RNA Sequencing and Analysis of Human Pancreatic Islets
11:34

Single-cell RNA Sequencing and Analysis of Human Pancreatic Islets

Published on: July 18, 2019

Area of Science:

  • Molecular Biology
  • Genomics
  • Diabetes Research

Background:

  • Microarray technology offers powerful insights into gene expression.
  • Understanding gene expression in pancreatic islets is crucial for diabetes research.

Purpose of the Study:

  • To provide a comprehensive guide for performing microarray experiments on pancreatic tissue.
  • To highlight key factors for achieving high-quality gene expression profiling data.

Main Methods:

  • Detailed protocols for microarray experiments using pancreatic islets or total pancreas.
  • Emphasis on experimental design and the use of biological replicates.
  • Guidelines for high-quality starting material preparation and optimized hybridization.

Main Results:

  • Successful implementation of microarray experiments requires meticulous attention to detail.
  • Sophisticated data processing and statistical analysis are essential for reliable results.
  • The described methods facilitate the realization of the full potential of expression profiling.

Conclusions:

  • This chapter serves as a practical resource for researchers in the field of diabetes.
  • Adherence to the outlined principles ensures the generation of robust and meaningful gene expression data.
  • The methodology presented is vital for advancing our understanding of diabetes at a molecular level.