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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...
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 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.
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...
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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Assessing Endothelial Vasodilator Function with the Endo-PAT 2000
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Cardiovascular function/dysfunction in adolescents with type 1 diabetes.

Kristen J Nadeau1, Jane E B Reusch

  • 1Pediatric Endocrinology, University of Colorado/The Children's Hospital, 13123 East 16th Avenue, B265, Aurora, CO 80045, USA. nadeau.kristen@tchden.org

Current Diabetes Reports
|February 22, 2011
PubMed
Summary
This summary is machine-generated.

Type 1 diabetes increases cardiovascular disease risk in youth, causing early heart and blood vessel defects. Insulin resistance, subtle lipid issues, and gender differences may explain these risks.

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Area of Science:

  • Cardiology
  • Endocrinology
  • Metabolic Diseases

Background:

  • Type 1 diabetes (T1D) significantly elevates cardiovascular disease (CVD) risk, even in childhood.
  • Early cardiac and vascular defects, alongside atherosclerosis, are observed in T1D youth despite optimal management.
  • Unexplained higher CVD risk in women with T1D warrants further investigation.

Purpose of the Study:

  • To investigate the role of insulin resistance (IR) and its unique phenotype in T1D.
  • To explore subtle lipid abnormalities and gender differences contributing to cardiovascular dysfunction in T1D.
  • To address knowledge gaps in preventing CVD morbidity and mortality in T1D.

Main Methods:

  • The study focuses on understanding the atypical clinical phenotype of insulin resistance in T1D.
  • Analysis of subtle lipid abnormalities associated with cardiovascular dysfunction.
  • Examination of gender-specific differences in CVD risk within the T1D population.

Main Results:

  • Insulin resistance is identified as a prominent factor in T1D, potentially driving early cardiac and vascular dysfunction.
  • Subtle lipid abnormalities and distinct gender differences are implicated in heightened CVD risk.
  • Early-onset cardiovascular defects in T1D youth predict adverse long-term outcomes.

Conclusions:

  • Understanding the unique IR phenotype, lipid profiles, and gender disparities in T1D is crucial.
  • Targeting these factors may help prevent cardiovascular complications and improve long-term outcomes for individuals with T1D.
  • Further research is needed to mitigate cardiovascular risk in T1D.