Results 251 to 260 of about 126,982 (292)
Some of the next articles are maybe not open access.
Regulation of intestinal sugar transport
Physiological Reviews, 1997The 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
openaire +2 more sources
Intestinal sugar transport during ageing
Biochimica et Biophysica Acta (BBA) - Biomembranes, 1985Ageing effects on sugar intestinal transport were studied by using the everted sac and the brush-border membrane vesicle techniques. Four age groups of rats were used: very young, young, adult and old animals. Net transintestinal transport of D-glucose and intracellular sugar accumulation were greater in young than in very young, adult and old rats ...
C. Lindi +3 more
openaire +2 more sources
Sugar transport in beef erythrocytes
Biochimica et Biophysica Acta (BBA) - Biomembranes, 19721. 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
openaire +2 more sources
‘Active’ Sugar Transport In Eukaryotes
Journal of Experimental Biology, 1994ABSTRACT 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 +7 more
openaire +2 more sources
Intestinal sugar transport in experimental diabetes
Diabetes, 1981The 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
openaire +2 more sources
Sugar transporters in plant biology
Current Opinion in Plant Biology, 1999Sugar 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.
openaire +2 more sources
Current Opinion in Structural Biology, 1991
Proteins that catalyse the transport of sugars may be fundamentally similar to proteins that catalyse the transport of many other substrates, both into and out of cells. The number of sugar transport proteins with known amino acid sequences has increased considerably, but there is still insufficient understanding of their three-dimensional structures ...
openaire +1 more source
Proteins that catalyse the transport of sugars may be fundamentally similar to proteins that catalyse the transport of many other substrates, both into and out of cells. The number of sugar transport proteins with known amino acid sequences has increased considerably, but there is still insufficient understanding of their three-dimensional structures ...
openaire +1 more source
Sugar transport: Occurrence of trehalase activity in sugar cane
Planta, 1969Trehalase 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
openaire +2 more sources
Sugar Transport Across Epithelia
2020The transport of d-glucose, d-galactose, and d-fructose across epithelial cells is mediated by SGLTs, GLUT5, and GLUT2 in the apical and/or basolateral membrane. The SGLTs (sodium–glucose cotransporters) are responsible for active glucose transport, while the GLUTs (facilitative glucose transporters) are responsible for passive glucose and fructose ...
Donald D. F. Loo, Ernest M. Wright
openaire +1 more source
Sugar transport across the corneal endothelium
Experimental Eye Research, 1969A system for mounting the rabbit's cornea and perfusing both its surfaces is described. The chambers in contact with the surfaces have to be small and well-mixed in order to follow the rapid exchanges of solutes that may occur. The efflux of radioactive sugars and other substances a cross the endothelium was examined by loading the corneal tissue with ...
P N, Hale, D M, Maurice
openaire +2 more sources