... + -K + pump rate constant during the menstrual cycle. 23 10 1992 25 11 1992 © 1993 The Biochemical Society and the Medical Research Society 1993 adenosine triphosphatase erythrocytes menstrual cycle potassium pregnancy sodium sodium-potassium pump Clinical Science (1993...

.... Incubation of leucocytes in vitro with 100 μmol/l linoleic acid inhibited the leucocyte ouabain-sensitive 22 Na + efflux rate constant (1.52 ± 0.27 vs 0.84 ± 0.24 h −1 , P < 0.001, n = 8). 5. The leucocyte Na + ,K + -dependent adenosine triphosphatase (Na + ,K + -ATPase) activity was inhibited in vitro...

... blockers timolol and atenolol shows that the demonstrated effect of adrenaline on coupled active transport of ions is mediated by &-adrenoceptors. Key words: adenosine triphosphatase, 0-adreno- ceptors, catecholamines, hypokalaemia, ion channels, leucocytes, potassium, sodium. Introduction There has been...

... activities of key enzymes implicated in HCO − 3 secretion may reflect the biochemical basis for the decreased mucosal resistance. 2 7 1982 27 9 1982 © 1983 The Biochemical Society and the Medical Research Society 1983 adenosine triphosphatase alkaline phosphatase bicarbonate brush...

...-activated adenosine triphosphatase prepared from rat kidney homogenate. 3. A single low-molecular-weight fraction, eluting after the salts and after exogenously added lysine-vasopressin, had significantly greater enzyme inhibitory activity when obtained from serum of volume-expanded animals than from...

...N. S. Dhalla; J. N. Singh; E. Bajusz; G. Jasmin 1. The activities of some membrane-bound enzymes such as adenylate cyclase, Na + +K + -stimulated adenosine triphosphatase (Na + +K + -ATPase), Ca 2+ -stimulated ATPase and Mg 2+ -stimulated ATPase were examined in heart sarcolemmal fractions from...

... in the amount of Na + + K + -dependent adenosine triphosphatase in liver without an additive effect. 4. It is suggested that digoxin resistance in thyrotoxicosis may be related to this similarity in action. 20 12 1975 © 1976 The Biochemical Society and the Medical Research Society 1976...

...C. H. Cole; R. Maletz 1. Intracellular electrolytes, and erythrocyte membrane adenosine triphosphatase (ATPase) activity, was studied in twenty patients after renal transplantation. 2. The mean ouabain-sensitive ATPase activity in the erythrocyte membranes of the transplant patients was 122 nmol...

...R. Lindsay 1. HeLa cells from human cervix and L cells from mouse fibroblasts were cultured in the presence and absence of ethanol. 2. Ethanol produced an increase in the sodium-plus-potassium-ion-stimulated adenosine triphosphatase (Na-ATPase). 3. This effect was inhibited by cycloheximide. 4...

...B. R. Tulloch; K. Gibson; P. Harris 1. Adenosine triphosphatase activity dependent on Mg 2+ and activated by Na + and K + has been found in a microsomal fraction of homogenates of human postmortem kidneys. 2. Various characteristics of the enzyme system are described. 3. Activity is greater...