The permeability of human erythrocytes to sodium
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چکیده
منابع مشابه
Kinetic Analysis of the Permeability of Human Erythrocytes to NH4Cl
A densimeter technique was used to make a kinetic analysis of the rate of swelling of human erythrocytes suspended in 1% NaCl following successive additions of NH(4)Cl. Two series of experiments were performed, one in the absence of and the other in the presence of 6 x 10(-4)M NaHCO(3). An analysis of the data using Widdas's equations gave a family of curves in each instance. When LeFevre's equ...
متن کاملThe Enhancing Effect of Sodium Glycocholate and Sodium Salicylate on Rats Gastro-intestinal Permeability to Insulin
There have been numerous efforts to formulate insulin into an oral dosage form. The major problems involved with the oral administration of insulin are acidic and enzymatic decomposition by the gastric medium, and poor absorption in the small intestine due to its macromolecular structure. This study attempted to test the enhancing ability of two absorption enhancers, sodium glycocholate (Na-G...
متن کاملThe Enhancing Effect of Sodium Glycocholate and Sodium Salicylate on Rats Gastro-intestinal Permeability to Insulin
There have been numerous efforts to formulate insulin into an oral dosage form. The major problems involved with the oral administration of insulin are acidic and enzymatic decomposition by the gastric medium, and poor absorption in the small intestine due to its macromolecular structure. This study attempted to test the enhancing ability of two absorption enhancers, sodium glycocholate (Na-G...
متن کاملPermeability of human erythrocytes to ammonia and weak acids.
KLOCKE, ROBERT A., KAJSA K. ANDERRSON.HAROLD H. ROT. MAN, AND ROBERT E. FORSTER. Permeability of human ery throcy tes to ammonia and weak acids. Am. J. Physiol. 222(3): 1004-1013. 1972.We have developed a continuous-flow rapid-reaction apparatus, using a glass pH electrode, capable of measuring changes in pH of ho.01 unit as early as 0.01 set after mixing. With this apparatus we have measured t...
متن کاملThe Permeability of the Human Erythrocyte to Sodium and Potassium
Measurements have been made on the permeability of the human erythrocyte to Na and K in vitro, using radioactive tracers to observe the system in the steady state. The average inward K flux is 1.67 m.eq./liter cells hour, and the apparent activation energy is 12,300 +/- 1300 calories/mol. The inward K flux is independent of the external K concentration in the range of concentrations studied (4 ...
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ژورنال
عنوان ژورنال: The Journal of Physiology
سال: 1951
ISSN: 0022-3751
DOI: 10.1113/jphysiol.1951.sp004591