Lipoproteins

Definition

Lipoproteins are molecules in the body that carry cholesterol and triglycerides through the bloodstream.

Scientific / Technical Definition

Lipoproteins are complex particles composed of multiple proteins which transport all fat molecules, such as cholesterol and triglycerides, within the water inside and outside cells. Their structure typically includes a lipid core and a protein outer shell, which allows them to transport insoluble lipids in the aqueous environment of the bloodstream.

Benefits

• Essential for transporting fats effectively throughout the body.
• Help maintain cell membrane integrity.
• Play a role in the synthesis and regulation of hormones.

Examples

• High-density lipoproteins (HDL) found in olive oil and fatty fish.
• Low-density lipoproteins (LDL) associated with red meat and fried foods.

Additional Information

• Importance: Lipoproteins are important for the transport of lipids, which are necessary for energy production, building cell membranes, and hormone synthesis.

Related Terms

• Cholesterol
• Triglycerides
• HDL
• LDL
• VLDL

References

• Understanding Lipoproteins - Harvard Health
• Lipoproteins - National Institutes of Health