Monosaccharide uptake by erythrocytes of the embryonic and adult chicken.
Rates of monosaccharide uptake by adult and 10-18 day old embryonic chicken erythrocytes were quantitated. The rate of carrier-mediated, stereospecific transport decreased 28% from day 10 to day 14 of incubation and was unchanged thereafter. At no time, however, did the rate of carrier-mediated transport by embryonic erythrocytes differ significantly from that of the adult cells. The rate of transfer by simple diffusion was 3-5 fold faster in embryonic than in adult erythrocytes. Uptake by simple diffusion decreased slightly as the embryo developed. Chronic hyperoxic incubation (70% O2) had little influence on total monosaccharide uptake by embryonic erythrocytes.
Ingermann
R L
RL
Stock
M K
MK
Metcalfe
J
J
Bissonnette
J M
JM
D019325:3-O-Methylglucose; D000818:Animals; D001692:Biological Transport; D002352:Carrier Proteins / Q000378:metabolism; D002642:Chick Embryo; D002645:Chickens / Q000097:blood; D004058:Diffusion; D004910:Erythrocyte Membrane / Q000378:metabolism*; D005947:Glucose / Q000378:metabolism*; D007700:Kinetics; D008757:Methylglucosides / Q000378:metabolism*; D008759:Methylglycosides / Q000378:metabolism*; D009004:Monosaccharide Transport Proteins
D002352:Carrier Proteins; D008757:Methylglucosides; D008759:Methylglycosides; D009004:Monosaccharide Transport Proteins; D019325:3-O-Methylglucose; D005947:Glucose