from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of a class of monosaccharide sugars containing an aldehyde group.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of a class of monosaccharides having an aldehyde or hemiacetal functional group.
from The Century Dictionary and Cyclopedia
- n. A name given to any monosaccharide which is an aldehyde to distinguish it from a ketose, which contams a ketone-group.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a monosaccharide sugar that contains the aldehyde group or is hemiacetal
It has been proposed that the open chain aldose while on the enzyme undergoes torsional inversion at the C2-C3 bond before ring closing.
They also reported that activity of the enzyme, known as aldose reductase, can be significantly reduced by compounds that have already undergone clinical trials as treatments for complications of diabetes.
NFAT5 regulates the adaptation of mammalian cells to hypertonic stress by inducing the expression of osmoprotective gene products that include chaperones and a number of enzymes and transporters, such as aldose reductase (AR), whose collective function is to increase the intracellular concentration of compatible organic osmolytes that allow cells to adapt and survive in a hypertonic environment
 and Hspa4l / Osp94 , and enzymes and transporters that increase the intracellular concentration of compatible osmolytes, such as aldose reductase (AR), the Na
Thus a-xylose were the substrates for the 2R-aldose enzymes in their production of fructose
I had been looking for evidence of proton transfer in enzymes that catalyzed aldose-ketose interconversions.
If now the aldose groups tend to pass over into the starch form, representing a temporary overflow product of the assimilating energy, it would appear that the ketose or levulose groups are preferentially used up in the elaboration of the permanent tissue.
The reason it is a 4 membered ring is because it is a ketose, as opposed to an aldose.
All four compounds also inhibit aldose reductase, a target enzyme for pharmacological control of diabetic complications.
Dihydroflavonol taxifolin and its glycoside, astilbin, from Engelhardtia chrysolepis inhibited rat lens and recombinant human aldose reductase.