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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...
Diabetes Mellitus: Introduction01:26

Diabetes Mellitus: Introduction

Diabetes mellitus consists of chronic metabolic disorders characterized by persistent hyperglycemia. This elevated blood glucose results from defects in insulin secretion, impaired insulin action, or both. Insulin, produced by pancreatic β-cells, is essential for maintaining glucose homeostasis by facilitating cellular glucose uptake for energy or storage. Disruptions in insulin production or function lead to glucose accumulation in the bloodstream, causing the clinical features and long-term...
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...
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 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...

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Related Experiment Video

Updated: Jun 2, 2026

Biochemical Measurement of Neonatal Hypoxia
13:13

Biochemical Measurement of Neonatal Hypoxia

Published on: August 24, 2011

[Neonatal diabetes mellitus].

Hanna Huopio1, Timo Otonkoski

  • 1KYS:n lastenklinikka, Kuopio.

Duodecim; Laaketieteellinen Aikakauskirja
|May 3, 2011
PubMed
Summary
This summary is machine-generated.

Monogenic causes, not type 1 diabetes, are likely in infants under six months. Identifying mutations in K-ATP channel genes is crucial for effective treatment, potentially replacing insulin with oral sulfonylureas.

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Area of Science:

  • Genetics and Endocrinology
  • Molecular Biology

Context:

  • Neonatal diabetes mellitus (NDM) presents before six months of age.
  • Permanent NDM is often monogenic, distinct from type 1 diabetes.
  • Mutations in potassium ATP (K-ATP) channel genes account for approximately 50% of permanent NDM cases.

Purpose:

  • To highlight the genetic basis of early-onset diabetes.
  • To emphasize the importance of identifying the specific genetic cause of NDM.
  • To inform treatment strategies based on genetic diagnosis.

Summary:

  • Diabetes diagnosed before six months of age is typically monogenic.
  • Mutations in K-ATP channel genes are a common cause of permanent neonatal diabetes.
  • Genetic identification guides treatment, prognosis, and understanding of inheritance patterns.

Impact:

  • Accurate genetic diagnosis of NDM can alter treatment protocols.
  • Identifying K-ATP channel gene mutations allows for potential transition from insulin to oral sulfonylureas.
  • Understanding the genetic etiology improves patient management and family counseling.