Adipocytes
Adipocytes
Adipocytes (pronounced: ad-i-po-sites), also known as fat cells, are cells that primarily compose adipose tissue, specialized in storing energy as fat.
Etymology
The term "adipocyte" is derived from the Latin 'adeps' meaning 'fat' and the Greek '-cyte' meaning 'cell'.
Function
Adipocytes are vital for energy storage and regulation. They store energy in the form of lipids for use during periods of fasting or exertion. Adipocytes also secrete a variety of products, including adipokines, which have roles in appetite regulation, energy balance, insulin sensitivity, inflammation, and vascular hemostasis.
Types of Adipocytes
There are two types of adipocytes: white adipocytes and brown adipocytes.
- White adipocytes are the most common type and are responsible for energy storage and release. They are found in the subcutaneous fat and visceral fat.
- Brown adipocytes are primarily involved in heat production. They are found in specific areas such as the neck and around the kidneys.
Related Terms
- Adipogenesis: The process of cell differentiation by which pre-adipocytes become adipocytes.
- Adipose tissue: A loose connective tissue composed mostly of adipocytes.
- Lipolysis: The metabolic pathway through which lipid triglycerides are hydrolyzed into a glycerol and three fatty acids.
- Lipogenesis: The process of fatty acid and triglyceride synthesis from glucose or other substrates.
- Adipokines: Proteins secreted by adipose tissue, with roles in various physiological processes.
External links
- Medical encyclopedia article on Adipocytes
- Wikipedia's article - Adipocytes
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