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Related Concept Videos

Overview of Lipid Metabolism01:24

Overview of Lipid Metabolism

Lipid metabolism is a crucial process in the human body that involves the synthesis and degradation of lipids. This process is essential for energy production, cell membrane formation, and hormone production, among other functions.
Lipolysis: The Breakdown of Lipids:
Lipolysis is the process of breaking down lipids, particularly triglycerides, into glycerol and fatty acids. This process typically occurs in the adipose tissue and is triggered by various hormones, including glucagon and...
Hypodermis01:02

Hypodermis

The hypodermis (the subcutaneous layer or superficial fascia) is present directly below the dermis. It connects the skin to the underlying fascia (fibrous tissue) of the bones and muscles. It is not strictly a part of the skin, although the border between the hypodermis and dermis can be difficult to distinguish. The hypodermis consists of well-vascularized, loose, areolar connective tissue and adipose tissue, which functions as a mode of fat storage and provides insulation and cushioning for...
Fats as Energy Storage Molecules01:06

Fats as Energy Storage Molecules

Triglycerides are a form of long-term energy storage molecules. They are made of glycerol and three fatty acids. To obtain energy from fat, triglycerides must first be broken down by hydrolysis into their two principal components, fatty acids and glycerol. This process, called lipolysis, takes place in the cytoplasm. The resulting fatty acids are oxidized by β-oxidation into acetyl-CoA, which is used by the Krebs cycle. The glycerol that is released from triglycerides after lipolysis directly...
Fats as Energy Storage Molecules01:06

Fats as Energy Storage Molecules

Triglycerides are a form of long-term energy storage molecules. They are made of glycerol and three fatty acids. To obtain energy from fat, triglycerides must first be broken down by hydrolysis into their two principal components, fatty acids and glycerol. This process, called lipolysis, takes place in the cytoplasm. The resulting fatty acids are oxidized by β-oxidation into acetyl-CoA, which is used by the Krebs cycle. The glycerol that is released from triglycerides after lipolysis directly...
Muscle Recovery and Fatigue01:24

Muscle Recovery and Fatigue

Muscle fatigue refers to the decline in a muscle's ability to maintain the force of contraction after prolonged activity. It primarily stems from changes within muscle fibers. Even before experiencing muscle fatigue, one may feel tired and have the urge to stop the activity. This response, known as central fatigue, occurs due to changes in the central nervous system, namely the brain and spinal cord. While there is no single mechanism that induces fatigue, it may serve as a protective response...
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Cholesterol: Significance and Regulation

Although not a source of energy, cholesterol plays a significant role as a foundational structure for bile salts, steroid hormones, and vitamin D, as well as being a crucial component of plasma membranes. Approximately 15% of blood cholesterol is derived from our diet, with the remainder synthesized from acetyl CoA by the liver and intestines. Cholesterol is eliminated from the body through its conversion into bile salts, which are eventually discarded in the feces.
Considering cholesterol and...

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Related Experiment Video

Updated: Jun 21, 2026

Measurement of Basal and Forskolin-stimulated Lipolysis in Inguinal Adipose Fat Pads
07:59

Measurement of Basal and Forskolin-stimulated Lipolysis in Inguinal Adipose Fat Pads

Published on: July 21, 2017

Changes in physiology with increasing fat mass.

Dara P Schuster1

  • 1Division of Endocrinology, Department of Pediatrics, The Ohio State University Hospitals and Nationwide Children's Hospital, Columbus, Ohio 43210, USA. dara.schuster@osumc.edu

Seminars in Pediatric Surgery
|July 4, 2009
PubMed
Summary
This summary is machine-generated.

Childhood obesity in the USA is rising rapidly, leading to serious health issues like diabetes and hypertension in adolescents. Early intervention is crucial to prevent long-term complications and improve quality of life.

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Area of Science:

  • Pediatric Endocrinology
  • Metabolic Disorders
  • Public Health

Background:

  • Childhood obesity prevalence has quadrupled in the USA, reaching epidemic levels.
  • Adipose tissue dysfunction significantly impacts fuel metabolism and hormone regulation.
  • Obesity involves a pathophysiologic increase in fat mass with deranged metabolic pathways.

Purpose of the Study:

  • To highlight the complex etiologies of obesity.
  • To discuss the metabolic derangements associated with obesity.
  • To emphasize the health risks and need for intervention in pediatric obesity.

Main Methods:

  • Review of current literature on obesity and pediatric health.
  • Analysis of the physiological role of adipose tissue.
  • Examination of obesity-related comorbidities in adolescents.

Main Results:

  • Obese adolescents exhibit increased rates of early maturation and orthopedic issues.
  • Common comorbidities include diabetes mellitus, obstructive sleep apnea, and hypertension.
  • Conditions like steatosis and polycystic ovarian syndrome are prevalent in obese youth.

Conclusions:

  • Pediatric obesity poses significant short- and long-term health risks.
  • Obesity-related comorbidities negatively impact children's quality of life.
  • Prevention and early intervention strategies are essential for this at-risk population.