Results 161 to 170 of about 69,813 (208)

Regulation of intestinal sugar transport

Physiological Reviews, 1997
The recent surge in knowledge of cellular and molecular mechanisms of intestinal sugar transport has fueled an enormous interest in adaptive mechanisms regulating sugar transport. We first review several functional considerations that help us interpret the different patterns of adaptation for different nutrients.
R P, Ferraris, J, Diamond
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Sugar transport in Coprinus cinereus

Biochimica et Biophysica Acta (BBA) - Biomembranes, 1979
Two transport systems for glucose were detected: a high affinity system with a Km of 27 muM, and a low affinity system with a Km of 3.3 mM. The high affinity system transported glucose, 2-deoxy-D-glucose (Km = 26 muM), 3-O-methylglucose (Km = 19 muM), D-glucosamine (Km = 652 muM), D-fructose (Km = 2.3 mM) and L-sorbose (Km = 2.2 mM).
D, Moore, M S, Devadatham
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Sugar transport in beef erythrocytes

Biochimica et Biophysica Acta (BBA) - Biomembranes, 1972
1. 1. The entry of sugar into beef erythrocytes was found to be facilitated by a saturable, passive process with unusually high affinity for d-glucose and d-3-O-methylglucose, the Michaelis constants for these two sugars being 0.09 and 0.17 mM respectively.
R T, Hoos, H L, Tarpley, D M, Regen
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‘Active’ Sugar Transport In Eukaryotes

Journal of Experimental Biology, 1994
ABSTRACT Sugar transporters in prokaryotes and eukaryotes belong to a large family of membrane proteins containing 12 transmembrane alpha-helices. They are divided into two classes: one facilitative (uniporters) and the other concentrative (cotransporters or symporters).
E M, Wright, D D, Loo, M, Panayotova-Heiermann, M P, Lostao, B H, Hirayama, B, Mackenzie, K, Boorer, G, Zampighi   +7 more
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Sugar transport: Occurrence of trehalase activity in sugar cane

Planta, 1969
Trehalase activity was detected in extracts of roots, leaves, and stalk tissue from sugar cane. The enzyme was not bound to cell particulates, and had a pH optimum of 6.2 and a Michaelis constant for trehalose of 1×10(-4) M. The level of enzyme detected in mature stalk tissue was too low to account for glucose transport into tissue slices.
K T, Glasziou, K R, Gayler
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Sugar transporters in plant biology

Current Opinion in Plant Biology, 1999
Sugar transporters are key players in many fundamental processes in plant growth and development. Recent results have identified several new transporters that contribute to a wide array of physiological activities, and detailed molecular analysis has provided exciting insights into the structure and regulation of these essential membrane proteins.
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Intestinal sugar transport in experimental diabetes

Diabetes, 1981
The increased sugar transport was examined in the isolated small intestine of streptozotocin-diabetic rats. In the small intestine of these animals, the rate of glucose absorption in vivo is slightly increased, but not that of galactose of 3-O-MG (3-O-Methylglucose); however, in the isolated small intestine, the mucosal-toserosal but not the serosal-to-
T Z, Csáky, E, Fischer
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Transport of Sugar

1982
The classical experiments of Monod’s group (Cohen and Monod 1957) have made biochemists aware of the importance of transport as the first biochemical reaction in the metabolism of a substance. Though the transport of substances through membranes occurs without a permanent alteration of its chemical structure (there are only a few exceptions), the ...
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Role of Intestinal Disaccharidases in Sugar Transport

Protoplasma, 1967
A number of observations show that intestinal sucrase is closely located, in the brush borders, to the sugar transport system.
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Comparison of different dietary sugars as inducers of intestinal sugar transporters

American Journal of Physiology-Gastrointestinal and Liver Physiology, 1987
Intestinal sugar transport increases with dietary carbohydrate levels, but the specific regulatory signals involved have been little studied. Hence we compared rations containing one of five sugars [D-glucose, D-galactose, 3-O-methyl-D-glucose (3-O-MG), D-fructose, and maltose] in their effects on brush-border uptake of five transported solutes (D ...
D H, Solberg, J M, Diamond
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