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Encyclopedia > Adipocyte

Adipocytes are the cells that primarily compose adipose tissue, specialized in storing energy as fat. Drawing of the structure of cork as it appeared under the microscope to Robert Hooke from Micrographia which is the origin of the word cell. Cells in culture, stained for keratin (red) and DNA (green). ... It has been suggested that Subcutaneous fat be merged into this article or section. ... FAT may mean: DILL :]] Factory acceptance test (see Acceptance test), a software engineering concept Far Eastern Air Transport, an airline of the Republic of China on Taiwan File Allocation Table, a file system format used by Microsoft operating systems; and others Forces Armées Tchadiennes, the Chad armed forces of...


Description

There are two types of adipose tissue: white adipose tissue (WAT) and brown adipose tissue (BAT), that are also known as white fat and brown fat respectively. Consequently, these two tissues are made up of two types of fat cells. Brown fat is a type of adipose tissue present in many newborn or hibernating mammals. ...

  • White fat cells contain a large lipid droplet surrounded by a ring of cytoplasm. The nucleus is flattened and located on the periphery. The fat stored is in a semi-liquid state, and is composed primarily of triglycerides and cholesterol ester. White fat cells secrete resistin, adiponectin and leptin.
  • Brown fat cells are polygonal in shape. Unlike white fat cells, these cells have considerable cytoplasm with lipid droplets scattered throughout. The nucleus is round, and, although eccentrically located, it is not in the periphery of the cell. The brown color comes from the large quantity of mitochondria. Brown fat, also known as “baby fat”, is used to generate heat.

A polyunsaturated triglyceride. ... Organelles. ... The eukaryotic cell nucleus. ... It has been suggested that Medium Chain Triglycerides be merged into this article or section. ... Resistin is a hormone secreted by adipose tissue. ... Adiponectin (also referred to as Acrp30, apM1) is a protein hormone that modulates a number of metabolic processes, including glucose regulation and fatty acid catabolism. ... Leptin (from the Greek word leptos, meaning thin) is a 16 kDa protein hormone that plays a key role in regulating energy intake and energy expenditure, including the regulation of appetite and metabolism. ... It has been suggested that Subcutaneous fat be merged into this article or section. ... Organelles. ... A polyunsaturated triglyceride. ... In cell biology, a mitochondrion is an organelle found in the cells of most eukaryotes. ...

Lineage

Although the lineage of adipocytes is still unclear, Preadipocytes are undifferentiated fibroblasts that can be stimulated to form adipocytes. Pluripotential hemopoietic stem cells or pluripotential hematopoietic stem cells (PHSCs) are stem cells found in the bone marrow. ...


Mesenchymal stem cells can differentiate into adipocytes, connective tissue, muscle or bone. Mesenchymal cells also known as mesenchymal stem cells or marrow stromal cells (MSC) are stem cells that can differentiate into osteoblasts, chondrocytes, myocytes, adipocytes neuronal cells and - as decribed lately, into beta-pancreatic islets cells. ... Connective tissue is one of the four types of tissue in traditional classifications (the others being epithelial, muscle, and nervous tissue. ... Grays Anatomy illustration of a human femur. ...


Areolar connective tissue is composed of adipocytes. Gel-like matrix with all three fiber types Areoloar tissue is the most common connnective tissue type and can be found in the skin as well as in places that connect epithelium to other tissues. ...


External links

  • Histology at BU 08201loa - "Connective Tissue: unilocular (white) adipocytes "
  • Histology at BU 04901lob - "Connective Tissue: multilocular (brown) adipocytes"

 
 

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