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Full-Text Articles in Biochemistry, Biophysics, and Structural Biology
The Alpha-Adrenergic Stimulation Of Atrial Natriuretic Factor Expression In Cardiac Myocytes Requires Calcium Influx, Protein Kinase C, And Calmodulin-Regulated Pathways, C A. Sei, C E. Irons, A B. Sprenkle, P M. Mcdonough, J H. Brown, C C. Glembotski
The Alpha-Adrenergic Stimulation Of Atrial Natriuretic Factor Expression In Cardiac Myocytes Requires Calcium Influx, Protein Kinase C, And Calmodulin-Regulated Pathways, C A. Sei, C E. Irons, A B. Sprenkle, P M. Mcdonough, J H. Brown, C C. Glembotski
Amy Sprenkle
Action Of Heptaminol Hydrochloride On Contractile Properties In Frog Isolated Twitch Muscle Fibre, Bruno Allard, Vincent Jacquemont, Fouad Lemtiri-Chlieh, Bernard Pourrias, Oger Rougier
Action Of Heptaminol Hydrochloride On Contractile Properties In Frog Isolated Twitch Muscle Fibre, Bruno Allard, Vincent Jacquemont, Fouad Lemtiri-Chlieh, Bernard Pourrias, Oger Rougier
fouad Lemtiri-Chlieh
1 Heptaminol stopped or delayed the progressive decline in tension which characterizes the phenomenon of fatigue in frog isolated twitch muscle fibre. 2 Heptaminol had no action on the sodium, potassium and calcium voltage-dependent ionic conductances. 3 The hypothesis of an action via an internal alkalinization was tested by comparison with the action of NH4Cl. Both substances increased the tension. 4 The action of hepataminol was suppressed in sodium-free (TRIS) solution or in the presence of amiloride while the action of NH4Cl was always observed. 5 These results could be explained by a stimulation of the Na/H antiport by heptaminol.