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Glucose Homeostasis: Regulation of Blood Glucose01:02

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Carbohydrates consumed through foods are converted into glucose, a crucial energy source for the body. In the prandial state, high blood glucose levels stimulate the secretion of insulin from the pancreas. Insulin inhibits hepatic glucose production and stimulates glucose uptake and metabolism by muscle and adipose tissue. The excess glucose is converted into glycogen and stored in the liver and muscles.
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Hypoglycemia and Glucagon01:15

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Without prolonged fasting, healthy individuals maintain blood glucose levels above 3.5 mM due to a well-adapted neuroendocrine counterregulatory system that effectively prevents acute hypoglycemia, a potentially life-threatening condition. The primary clinical scenarios for hypoglycemia encompass diabetes treatment, inappropriate production of endogenous insulin or insulin-like substances by tumors, and the use of glucose-lowering agents in non-diabetic individuals. Notably, hypoglycemia in the...
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Diabetes: Management and Pharmacotherapy01:15

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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.
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Hormones Regulating Blood Glucose01:16

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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.
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Glucose Homeostasis: Pancreatic Islets and Insulin Secretion01:27

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The pancreatic islets comprising only 1%-2% of the volume are highly vascularized and innervated mini-organs. They contain five endocrine cell types, including β cells that secrete insulin, which is synthesized as a single polypeptide chain, preproinsulin, processed to proinsulin, and finally to insulin and C-peptide. This process is complex and regulated, involving the Golgi complex, the endoplasmic reticulum, and the secretory granules of the β cell.
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Diabetes Mellitus: Type 2 and Gestational01:22

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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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Improving IV Insulin Administration in a Community Hospital
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Approach to glucose control: The SECURE model.

Hitesh Punyani1, Tejal Lathia2, Sanjay Kalra3

  • 1Department of Medicine, Chaitanya Cardio Diabetes Centre, New Delhi, India.

JPMA. the Journal of the Pakistan Medical Association
|January 23, 2021
PubMed
Summary

This study introduces the SECURE model, a new framework for planning glucose-lowering strategies in hospitalized patients. It uses six clinical factors for insulin therapy decisions, offering a more comprehensive approach than standard methods.

Keywords:
Critical care, diabetes, hyperglycaemia, hypoglycaemia, insulin, intravenous insulin

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Area of Science:

  • Clinical Medicine
  • Endocrinology
  • Hospital Management

Background:

  • Hospitalized patients often require glucose management.
  • Current glucose-lowering strategies can be overly simplistic.
  • A need exists for a more nuanced approach to insulin therapy in hospitals.

Purpose of the Study:

  • To introduce a novel framework, the SECURE model, for guiding glucose-lowering strategies in hospitalized patients.
  • To provide a structured approach for determining insulin therapy intensity.
  • To enhance clinical decision-making in inpatient glycemic control.

Main Methods:

  • Development of the SECURE model, incorporating six key clinical characteristics.
  • Evaluation of the SECURE model's comprehensiveness compared to conventional methods.
  • Application of the framework in critical care settings.

Main Results:

  • The SECURE model offers a more comprehensive approach than traditional gluco-centric algorithms.
  • It integrates multiple clinical factors beyond just glucose levels.
  • The model promotes pragmatic and clinically sensible care.

Conclusions:

  • The SECURE model provides a valuable framework for optimizing insulin therapy in hospitalized patients.
  • It encourages a more holistic and individualized approach to glycemic management.
  • Implementation of SECURE can lead to improved clinical outcomes and pragmatic care in critical settings.