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Related Concept Videos

Metabolic States of the Body: The Postabsorptive State01:18

Metabolic States of the Body: The Postabsorptive State

The postabsorptive state usually starts about four hours after a meal and lasts until the next meal is eaten. During this time, the digestive system stops absorbing nutrients, and the body uses stored energy reserves to maintain stable blood glucose levels.
Initially, glycogen stored in the liver is broken down to release glucose into the bloodstream, while glycogen in the muscles is broken down to supply glucose for energy directly within the muscle cells. As glycogen stores diminish,...
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During the initial hours of fasting, the body uses up its glycogen stores as an energy source. Once these glycogen reserves are depleted, the body begins breaking down stored triglycerides and structural proteins. During this stage, glycerol becomes a key substrate for gluconeogenesis, while free fatty acids undergo beta-oxidation to provide energy for tissues, such as skeletal muscle. In the fasting state, the body spares protein breakdown as much as possible to conserve muscle and structural...
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What is Metabolism?00:52

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Metabolic States of the Body: The Absorptive State01:25

Metabolic States of the Body: The Absorptive State

During the absorptive state, which lasts approximately four hours after a meal, the body absorbs nutrients from the gastrointestinal tract. The carbohydrates, proteins, and lipids we consume are broken down into monosaccharides, amino acids, and free fatty acids for absorption. While carbohydrates and proteins are absorbed as-is, lipids are absorbed in their broken-down forms and then re-esterified into triglycerides within enterocytes before being packaged into chylomicrons. These absorbed...
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Related Experiment Video

Updated: Jun 6, 2026

Duodenal-Jejunal Bypass Surgery in Diet-Induced Obese Diabetic Mice
08:50

Duodenal-Jejunal Bypass Surgery in Diet-Induced Obese Diabetic Mice

Published on: October 18, 2024

[Metabolic surgery].

Martin Fried1

  • 1Centrum pro Iécbu obezity a metabolických poruch OB kliniky a 1. lékarské fakulty UK Praha. docfried@volny.cz

Vnitrni Lekarstvi
|November 26, 2010
PubMed
Summary
This summary is machine-generated.

Bariatric surgery, evolving into metabolic surgery, effectively treats obesity and type 2 diabetes (T2DM) by improving hormonal secretion and glucose tolerance. This approach highlights the crucial, multidisciplinary role of surgeons in managing metabolic disorders.

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Area of Science:

  • Metabolic Surgery
  • Endocrinology
  • Bariatric Procedures

Context:

  • Obesity poses significant health, social, and economic burdens globally.
  • Direct and indirect costs of obesity and comorbidities represent a substantial portion of healthcare spending.
  • Bariatric surgery is the most effective long-term treatment for severe obesity, improving comorbidities.

Purpose:

  • To explore the evolution of bariatric surgery into metabolic surgery for treating obesity-related comorbidities, particularly type 2 diabetes mellitus (T2DM).
  • To highlight the impact of metabolic operations on hormonal secretion and the entero-insular axis.
  • To emphasize the changing perception of T2DM management, incorporating a more active surgical role.

Summary:

  • Metabolic surgery, particularly malabsorptive procedures, profoundly influences gut hormone secretion, enhancing the entero-insular axis.
  • These operations positively impact insulin secretion, sensitivity, and overall glucose tolerance, offering an effective treatment for T2DM.
  • The management of T2DM is shifting, recognizing the surgeon's significant role within a multidisciplinary team.

Impact:

  • Metabolic surgery offers a powerful tool for managing T2DM, often independent of weight loss.
  • This approach redefines T2DM from a purely medical condition to one amenable to surgical intervention.
  • Emphasizes the necessity of a multidisciplinary approach, with surgeons as key team members, for optimal metabolic disorder treatment.