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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 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...

Production of Pharmaceuticals

Production of Pharmaceuticals

Industrial insulin production uses genetically engineered E. coli expressing a proinsulin gene controlled by a tryptophan promoter and containing a methionine linker for later cleavage. The cells also carry ampicillin resistance for selective growth. Seed cultures are stored at −80 °C and production begins by thawing a small amount to inoculate starter cultures, which are progressively scaled to a 50,000-L bioreactor. In the bioreactor, E. coli grow in nutrient-rich media under...

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...

Type I Diabetes I: Introduction

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...

Glucose Homeostasis: Pancreatic Islets and Insulin Secretion

Glucose Homeostasis: Pancreatic Islets and Insulin Secretion

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.
Insulin and C-peptide are...

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Related Experiment Video

Updated: Apr 29, 2026

Improving IV Insulin Administration in a Community Hospital

Improving IV Insulin Administration in a Community Hospital

Published on: June 11, 2012

[External insulin pump treatment].

Nelly Puech-Bret, Eric Guillaume

Soins; La Revue De Reference Infirmiere

|May 21, 2014

Summary

This summary is machine-generated.

External insulin pumps, a key part of intensified insulin therapy, offer a major advance for diabetes management. Technological progress in pumps and glucose sensors has significantly improved their use and effectiveness over the past decade.

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Last Updated: Apr 29, 2026

Improving IV Insulin Administration in a Community Hospital

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Published on: June 11, 2012

Studying the Hypothalamic Insulin Signal to Peripheral Glucose Intolerance with a Continuous Drug Infusion System into the Mouse Brain

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Published on: January 4, 2018

Intra-Omental Islet Transplantation Using h-Omental Matrix Islet filliNG hOMING

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Published on: March 14, 2019

Area of Science:

Endocrinology and Metabolism
Medical Devices and Technology

Context:

External insulin pumps are integral to intensified insulin therapy for diabetes management.
Widespread adoption has increased since French health insurance coverage began in 2000.
Significant technological advancements in infusion equipment and glucose sensors have occurred over the last decade.

Purpose:

To highlight the role and evolution of external insulin pumps in diabetes treatment.
To underscore the impact of technological progress on insulin pump therapy.

Summary:

External insulin pumps represent a significant advancement in intensified insulin therapy.
Their use has grown substantially, supported by technological innovations in both pumps and continuous glucose monitoring systems.
Recent technological progress has been crucial in enhancing the efficacy and adoption of these devices.

Impact:

Improved diabetes management through advanced therapeutic options.
Enhanced patient quality of life via more effective insulin delivery systems.
Demonstrates the critical role of technological innovation in chronic disease treatment.