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Related Concept Videos

Lipid Catabolism01:25

Lipid Catabolism

Triglycerides serve as crucial long-term energy storage molecules in microorganisms, providing a dense source of metabolic energy. Their breakdown is mediated by lipases, which hydrolyze triglycerides into glycerol and free fatty acids. Each of these components follows distinct metabolic pathways, ultimately contributing to ATP synthesis and cellular energy homeostasis.Glycerol MetabolismGlycerol, released from triglyceride hydrolysis, is phosphorylated by glycerol kinase to form...
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...
Pharmacokinetics in Obese Patients: Drug Metabolism and Excretion01:20

Pharmacokinetics in Obese Patients: Drug Metabolism and Excretion

Drug metabolism, a critical process in the liver, involves two primary phases: Phase I reactions and Phase II conjugation. Obesity introduces significant alterations in this metabolic process, primarily due to fatty infiltration of the liver, leading to conditions such as nonalcoholic fatty liver disease (NAFLD). This condition can modify the activities of both Phase I and II enzymes, impacting how drugs are metabolized in obese patients.Phase I metabolism sees variable effects across...
Regulation of Metabolism01:19

Regulation of Metabolism

Cellular needs and conditions vary from cell to cell and change within individual cells over time. For example, the required enzymes and energetic demands of stomach cells are different from those of fat storage cells, skin cells, blood cells, and nerve cells. Furthermore, a digestive cell works much harder to process and break down nutrients during the time that closely follows a meal compared with many hours after a meal. As these cellular demands and conditions vary, so do the amounts and...
Overview of Fatty Acid Metabolism01:28

Overview of Fatty Acid Metabolism

Lipids also are sources of energy that power cellular processes. Like carbohydrates, lipids are composed of carbon, hydrogen, and oxygen, but these atoms are arranged differently. Most lipids are nonpolar and hydrophobic. Major types include fats and oils, waxes, phospholipids, and steroids.
Fatty acids are catabolized in a process called beta-oxidation, which takes place in the matrix of the mitochondria and converts their fatty acid chains into two-carbon units of acetyl groups. The acetyl...

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Arteriovenous Metabolomics to Measure In Vivo Metabolite Exchange in Brown Adipose Tissue
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Retrofitting fat metabolism.

Liming Pei1, Ronald M Evans

  • 1Howard Hughes Medical Institute and Gene Expression Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA.

Cell Metabolism
|June 4, 2009
PubMed
Summary
This summary is machine-generated.

Researchers engineered a plant metabolic pathway in animals to combat obesity. This novel synthetic approach offers new avenues for metabolic research and potential therapeutic strategies.

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Area of Science:

  • Metabolic Engineering
  • Synthetic Biology
  • Animal Models

Background:

  • Obesity presents a significant global health challenge.
  • Current therapeutic strategies for obesity have limitations.
  • Engineering foreign metabolic pathways offers a novel approach.

Discussion:

  • Liao and colleagues engineered the plant glyoxylate shunt in vivo.
  • This synthetic metabolic pathway was applied to combat obesity in animal models.
  • The study demonstrates the feasibility of introducing and utilizing foreign metabolic pathways.

Key Insights:

  • Successful in vivo engineering of a plant metabolic pathway (glyoxylate shunt) in animals.
  • Demonstrated a novel synthetic approach to address obesity.
  • Established a proof-of-concept for inter-kingdom metabolic engineering.

Outlook:

  • Potential for developing new therapeutic strategies for metabolic disorders.
  • Opens avenues for understanding fundamental metabolic processes.
  • Future research could explore other foreign metabolic pathways for therapeutic applications.