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Cholesterol and fatty acid synthesis in swine | JoVE Visualize

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Cholesterol and fatty acid synthesis in swine

W Y Huang, F A Kummerow

Lipids|January 1, 1976

View abstract on PubMed

Summary

Swine adipose tissue readily incorporates acetate and glucose into fatty acids and cholesterol, indicating high lipogenic activity. Other tissues show lower synthetic capabilities, with some exceptions in the small intestine and liver.

Area of Science:

Biochemistry
Animal Physiology
Metabolic Research

Background:

Lipogenesis, the synthesis of fatty acids, is a crucial metabolic process.
Understanding tissue-specific lipogenic capacities in swine is important for nutritional and physiological studies.

Purpose of the Study:

To investigate the comparative lipogenic and cholesterol synthesis activities in various swine tissues.
To identify key enzymes and pathways involved in swine lipid metabolism.

Main Methods:

Incubation studies using radiolabeled substrates (acetate-1-14C, glucose-U-14C) with swine tissue slices and homogenates.
Measurement of substrate incorporation into fatty acids, cholesterol, and glyceride-glycerol.
Analysis of key lipogenic enzyme activities (acetyl CoA carboxylase, fatty acid synthetase, etc.).

Main Results:

Adipose tissue demonstrated the highest incorporation of substrates into fatty acids and cholesterol.
Liver and small intestine showed substantial cholesterol synthesis activity, especially with acetate.
Heart and aortic tissues exhibited minimal lipogenic and cholesterol synthesis abilities.
Key lipogenic enzyme activities were significantly higher in adipose tissue compared to other tissues.

Conclusions:

Swine adipose tissue is a primary site for lipogenesis and cholesterol synthesis.
Lipid metabolism varies significantly across different swine tissues.
Enzyme activity profiles correlate with observed lipogenic capacities in swine tissues.

Chemical Engineering

Chemical And Thermal Processes In Energy And Combustion

Cholesterol And Fatty Acid Synthesis In Swine