Brush Border


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brush border

[′brəsh ‚bȯr·dər]
(cell and molecular biology)
A superficial protoplasic modification in the form of filiform processes or microvilli; present on certain absorptive cells in the intestinal epithelium and the proximal convolutions of nephrons.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Brush Border

 

the aggregate of rod-shaped structures on the surface of certain cells in animals and humans. The brush border consists of separate cytoplasmic processes arranged like a brush along the free margin of the cells of the excretory ducts of the salivary glands, the convoluted uriniferous tubules of the kidney, and certain other epithelial cells. By substantially increasing the cell surface, the brush border promotes more intensive absorption and excretion of matter.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
The brush border, which had been continuous in previous stages, was interrupted by the expansion of the cell apices.
Immunocytochemical staining at the light microscopic level reveals that all four V-ATPase antibodies used in our studies bind to sites within the brush border of the MR cells in the ABO.
(1998) prepared brush border membrane vesicles from lactating dairy cows and observed SGLT1 activity throughout the intestine.
Brush border membrane vesicles (BBMV) from rat jejunum were prepared according to the calcium chloride precipitation method (Kessler et al., 1978).
Urinary trehalase comes from the apical membranes of the renal proximal tubular cells: immunohistochemical staining of the renal cortex-mix shows the existence of this enzyme on the brush border of the renal proximal tubules (Fig.
A comparative study of sterol absorption in different small-intestinal brush border membrane models.
Identification of two porcine brush border glycoproteins that bind the K88ac adhesin of Escherichia coli and correlation of these glycoproteins with the adhesive phenotype.
Loss of brush border was absent in the control group A, present in 100% experimental animals in group B, 80% and 26.7% in experimental animals of group C and D respectively.
Wheat sensitive enteropathy in irish setter dogs - possible age related brush border abnormalities.
Meprins are zinc metalloproteases of the astacin family that are abundantly expressed in the brush border membranes (BBM) of kidney proximal tubules and small intestines [1,2].
These sugars, plus other sugars such as sucrose (table sugar) and lactose (milk sugar), require further digestion by another set of enzymes called "brush border" enzymes, Webb says.