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Related Concept Videos

Diabetes: Management and Pharmacotherapy01:15

Diabetes: Management and Pharmacotherapy

The therapy for diabetes aims to alleviate hyperglycemia-related symptoms, prevent acute metabolic decompensation, and reduce chronic end-organ complications. Glycemic control is evaluated through short-term (self-monitoring, continuous glucose monitoring) and long-term (A1c, fructosamine) metrics, enabling near real-time tracking of blood glucose levels and reflecting glycemic control over specific time frames.
Insulin remains the cornerstone of treatment for most patients with type 1 and many...
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...
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...
Hormones Regulating Blood Glucose01:16

Hormones Regulating Blood Glucose

Insulin is released by beta cells of the pancreas when blood glucose levels are high. It facilitates glucose absorption and utilization in insulin-dependent cells with insulin receptors on their plasma membranes. Insulin promotes glucose uptake by increasing the number of glucose transport proteins in the cell membrane, allowing glucose to enter the cell. As a result, glucose utilization and ATP production are enhanced.
In addition to accelerating glucose uptake and utilization, insulin has...
Hyperglycemia01:29

Hyperglycemia

Hyperglycemia is an abnormally high blood glucose level. It is diagnosed by fasting glucose ≥126 mg/dL, 2-hour oral glucose tolerance test (or OGTT) ≥200 mg/dL, random glucose ≥200 mg/dL with symptoms, or HbA1c ≥6.5%. However, HbA1c results may be unreliable in certain conditions, such as anemia or hemoglobinopathies, and the diagnosis should be confirmed unless classic symptoms are present. Postprandial hyperglycemia is typically considered significant when glucose levels exceed 180 mg/dL two...
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...

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Related Experiment Video

Updated: Jun 25, 2026

Improving IV Insulin Administration in a Community Hospital
12:08

Improving IV Insulin Administration in a Community Hospital

Published on: June 11, 2012

Multi-objective blood glucose control for type 1 diabetes.

Pinky Dua1, Francis J Doyle, Efstratios N Pistikopoulos

  • 1Department of Chemical Engineering, Centre for Process Systems Engineering, Imperial College London, South Kensington Campus, London SW72AZ, UK. Pinky.2.dua@gsk.com

Medical & Biological Engineering & Computing
|February 14, 2009
PubMed
Summary

New control techniques for type 1 diabetes aim to prevent dangerous blood glucose levels. These methods prioritize avoiding hypoglycemia (low blood sugar) over hyperglycemia (high blood sugar) for improved patient safety.

Related Experiment Videos

Last Updated: Jun 25, 2026

Improving IV Insulin Administration in a Community Hospital
12:08

Improving IV Insulin Administration in a Community Hospital

Published on: June 11, 2012

Area of Science:

  • Biomedical Engineering
  • Control Systems
  • Endocrinology

Background:

  • Type 1 diabetes management requires maintaining blood glucose within 60-120 mg/dL.
  • Hypoglycemia (<60 mg/dL) poses a greater health risk than hyperglycemia (>120 mg/dL).
  • Automatic controllers aim to mitigate glucose fluctuations from meals and exercise.

Purpose of the Study:

  • To develop and evaluate novel control strategies for artificial pancreas systems.
  • To address the asymmetric risk associated with hypoglycemia versus hyperglycemia in type 1 diabetes.
  • To enhance the safety and efficacy of automated insulin delivery systems.

Main Methods:

  • Implementation of two distinct control techniques within a multi-parametric model control framework.
  • Technique 1: Introducing asymmetry into the objective function to penalize hypoglycemia more severely.
  • Technique 2: Prioritizing the satisfaction of hypoglycemia constraints over hyperglycemia constraints.

Main Results:

  • Both control techniques demonstrated effectiveness in managing blood glucose levels.
  • Analysis focused on performance comparison under simulated meal and exercise disturbances.
  • The asymmetric penalization and prioritized constraint satisfaction were evaluated for their impact on glucose control.

Conclusions:

  • The presented control strategies offer improved safety profiles for type 1 diabetes management.
  • These methods effectively address the heightened risk of hypoglycemia in automated insulin delivery.
  • Further research can refine these techniques for clinical application in artificial pancreas systems.