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Related Concept Videos

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...
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 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.
Diabetic Retinopathy01:27

Diabetic Retinopathy

DefinitionDiabetic retinopathy is a microvascular complication of diabetes affecting the retinal blood vessels.Risk FactorsDiabetic retinopathy is present in almost all individuals with type 1 diabetes and more than 60% of those with type 2 diabetes after two decades of disease.The risk increases with poor glycemic control, hypertension, dyslipidemia, smoking, pregnancy, and puberty.Although cataracts and glaucoma are also more frequent in people with diabetes, retinopathy remains the leading...
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...

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Related Experiment Video

Updated: May 13, 2026

Osmotic Minipump Implantation for Increasing Glucose Concentration in Mouse Cerebrospinal Fluid
06:21

Osmotic Minipump Implantation for Increasing Glucose Concentration in Mouse Cerebrospinal Fluid

Published on: April 7, 2023

Metabolic and Microvascular Risk Factors Associated With Brain Health in Type 1 Diabetes.

Jihyun Park1, Emily J Koubek1, Richard Beare2

  • 1Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA.

Annals of Clinical and Translational Neurology
|May 12, 2026
PubMed
Summary

Adults with type 1 diabetes may experience subtle changes in fluid cognition. Metabolic factors and microvascular issues were not consistently linked to brain health in this exploratory study.

Keywords:
brain structurecognitionmetabolic factorsmicrovascular complicationstype 1 diabetes

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Behavioral Assessment of Visual Function via Optomotor Response and Cognitive Function via Y-Maze in Diabetic Rats
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Behavioral Assessment of Visual Function via Optomotor Response and Cognitive Function via Y-Maze in Diabetic Rats

Published on: October 23, 2020

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Last Updated: May 13, 2026

Osmotic Minipump Implantation for Increasing Glucose Concentration in Mouse Cerebrospinal Fluid
06:21

Osmotic Minipump Implantation for Increasing Glucose Concentration in Mouse Cerebrospinal Fluid

Published on: April 7, 2023

Behavioral Assessment of Visual Function via Optomotor Response and Cognitive Function via Y-Maze in Diabetic Rats
07:41

Behavioral Assessment of Visual Function via Optomotor Response and Cognitive Function via Y-Maze in Diabetic Rats

Published on: October 23, 2020

Area of Science:

  • Neuroscience
  • Endocrinology
  • Metabolic Syndrome

Background:

  • Type 1 diabetes (T1D) is a chronic metabolic disorder.
  • Cognitive function and brain health are crucial aspects of T1D management.
  • Understanding the interplay between metabolic factors, complications, and brain health is essential.

Purpose of the Study:

  • To investigate the associations between metabolic risk factors, microvascular complications, and cognitive function in adults with T1D.
  • To explore potential differences in brain health markers in this population.

Main Methods:

  • Fifty-one adults with T1D were evaluated.
  • Assessment included metabolic risk factors, microvascular complications, and cognitive function tests.
  • A subset underwent brain magnetic resonance imaging (MRI).

Main Results:

  • Participants demonstrated reduced fluid cognition (p=0.01) and elevated crystallized cognition (p=0.0001) compared to normative data.
  • No consistent links were found between microvascular complications, metabolic factors (obesity, diabetes duration, HbA1c), and brain health outcomes.

Conclusions:

  • Exploratory findings suggest subtle cognitive alterations in adults with T1D.
  • Larger longitudinal studies are necessary to elucidate the influence of metabolic and microvascular factors on brain health in T1D.