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Insulin: Dosing Regimen and Adverse Effects

Insulin: Dosing Regimen and Adverse Effects

Insulin-replacement therapy usually includes both long-acting insulin (basal) and short-acting insulin (to cater to postprandial needs). In a diverse group of type 1 diabetes patients, the average daily insulin dose is typically 0.5-0.7 units/kg body weight. However, obese patients and pubertal adolescents may need more due to insulin resistance.
The basal dose constitutes about 40%-50% of the total daily dose, with the rest as premeal insulin. The mealtime insulin dose should mirror...

Insulin: Biosynthesis, Chemistry, and Preparation

Insulin: Biosynthesis, Chemistry, and Preparation

The endoplasmic reticulum (ER) of pancreatic β-cells synthesizes preproinsulin, which consists of a signal peptide, A and B chains, and a C-peptide. Preproinsulin is then cleaved and folded into proinsulin, which translocates to the Golgi apparatus for sorting and packaging into secretory granules. In these granules, enzymatic clipping generates insulin and C-peptide.
Damage or functional impairment of β-cells inhibits insulin production, leading to diabetes. Diabetes treatment primarily uses...

Insulin Formulations: Types and Delivery

Insulin Formulations: Types and Delivery

Insulin preparations are categorized by their duration of action into short-acting and long-acting types. Two strategies are used to modify insulin's absorption and pharmacokinetic profile: slowing the absorption post-subcutaneous injection, or altering human insulin's amino acid sequence or protein structure. These changes retain the insulin's ability to bind to the insulin receptor, but alter its behavior in solution or after injection.
Short-acting insulins are divided into rapid-acting...

Diabetes Mellitus: Overview and Type I Subtype

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 Gestational

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: Management and Pharmacotherapy

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...

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Related Experiment Video

Updated: Jun 29, 2026

Transcutaneous Microcirculatory Imaging in Preterm Neonates

Transcutaneous Microcirculatory Imaging in Preterm Neonates

Published on: December 31, 2015

Insulin therapy in preterm newborns.

Kathryn Beardsall¹, David Dunger

¹Clinical Lecturer Neonatology, University Department of Paediatrics, Addenbrooke's Hospital Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge CB2 0QQ, United Kingdom. dbd25@cam.ac.uk

Early Human Development

|October 14, 2008

Summary

This summary is machine-generated.

Premature infants face risks to pancreatic development, affecting insulin secretion and sensitivity. Managing hyperglycemia with insulin may improve short-term outcomes and potentially long-term health, but clinical trial results are pending.

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Last Updated: Jun 29, 2026

Transcutaneous Microcirculatory Imaging in Preterm Neonates

Transcutaneous Microcirculatory Imaging in Preterm Neonates

Published on: December 31, 2015

Area of Science:

Neonatalogy
Endocrinology
Developmental Biology

Background:

The perinatal period is crucial for pancreatic development.
Prematurity impacts insulin secretion and sensitivity, leading to hyperglycemia in infants.
Hyperglycemia signifies relative insulin deficiency, affecting anabolism and growth factors.

Purpose of the Study:

To define the impact of prematurity on pancreatic development, specifically insulin secretion and sensitivity.
To explore the effects of insulin use and hyperglycemia prevention in preterm infants.

Main Methods:

The study reviews existing literature on perinatal pancreatic development and prematurity.
It analyzes the consequences of hyperglycemia and potential interventions like insulin therapy.

Main Results:

Premature infants are at risk of hyperglycemia, indicating impaired insulin function.
Insulin therapy and hyperglycemia management may influence immune function, lipid metabolism, and growth.

Conclusions:

Understanding the effects of prematurity on insulin regulation is vital for neonatal care.
Further clinical trials are needed to confirm the long-term benefits of managing hyperglycemia in preterm infants.