CARDIAC MUSCLE CONTRACTILITY 



193 



of digitalis and desoxycorticosterone acetate administra- 200. 



tion upon intracellular potassium ion concentration. J. 

 Lab. & Ciin. Med. 53; 216, 1959. 



183. Langemann, H., T. M. Brody, and J. A. Bain. In vilro 201. 

 effects of ouabain on slices and mitochondrial preparations 



from heart and brain. J. Pharmacol, or' E.xpt'r. Theiap. 108: 202. 



^74. 1953 



184. Lee, J. AND J. \\ . Woodbury. Effect of potassium lack 203. 

 and digitoxin on transmembrane potentials and tension 



of frog ventricle. Fed. Proc. 17: 94, 1958. 204. 



1 85. Lee, K. S. Effect of quinidine on papillary muscle. Proc. 



Soc. Exper. Biol. & Med. 86: 444, 1954. 205. 



186. Leonard, E. Alteration of contractile response of artery 

 strips by a potassium-free solution, cardiac glycosides and 

 changes in stimulation frequency. Am. J. Physiol. i8g: 206. 



185, 1957- 



187. Leonard, E. and S. Hajdu. The effect of potassium on 



the inotropic action of cardiac glycosides. Clin. Research 7 : 207. 



19. 1959- 



188. Leon.ard, E and S. Hajdu. Cardioglobulin. Clin. Research 208. 

 8: 187, i960. 



189. Lewis, M. S. and H. A. Saroff. The binding of ions to 



the muscle proteins. Measurements on the binding of 209. 



potassium and sodium ions to myosin A, myosin B, and 

 actin. J. Am. Chem. Soc. 79; 21 12, 1955. 



190. Lieberman, A. L. Studies on calcium: VL Some inter- 

 relationships of the cardiac activities of calcium gluconate 210. 

 and scillaren-B. J. Pharmacol. & Exper. Therap. 47: 183, 



1933- 



191. LiNDEM.^N, V. F. The physiology of the crustacean heart. 211. 

 IL The effect of lithiuiu, ammonium, strontium, and 

 barium ions upon the heart rhythm of the crayfish 212. 

 (Cambarus Clarkii). Physiol. Zool. 2: 395, 1929. 



192. Ling, G. N. The role of phosphate in the maintenance of 

 the resting potential and selective ionic accumulation in 



frog muscle cells. In: Phosphorus Metabolism, vol. 11, edited 213. 



by W. D. McElroy and B. Glass. Baltimore: Johns 

 Hopkins Press, 1952, p. 748. 



193. LoEVVi, O. Uber den Zusammenhang zwischen Digitalis- 214. 

 und Kalziumwirkung, Nauny- Schrniedebergs Arch, exper. 



Path, u Pharmakol. 82: 131, 191 7. 



194. Love, W. D. and G. E. Burgh. A comparison of potas- 215. 

 slum", rubidium''*, and cesiiun'-^' as tracers of potassium 



in the study of cation metabolism of human erythrocytes 216. 



in vitro. J. Lab. Clin. Med. 41 : 351, 1953- 



195. Love, \V. S. The effect of quinidine and strophanthidin 



upon the refractory period of the tortoise ventricle. Heart 217. 



13:87, 1926. 



196. LowN, B., H. Salzberg, C. D. Enseleerg, and R. E. 

 Weston. Interrelationship between potassium metabolism 2 1 8. 

 and digitalis toxicity in heart failure. Proc. Soc. Exper. 



Biol. & Med. 76: 797, 1951. 



197. LowRY, O. H. Electrolytes in the cytoplasm. Bwl. Sym- 218a 

 posia 10: 233, 1943. 



1 98. LuBiN, M. and p. B. Schneider. The e.\change of potas- 2 1 9. 

 slum for caesium and rubidium in frog muscle. J. Physiol. 



138: 140, 1957. 



199. Lundsgaard-Hansen, p. Vergleich der Wirkungen von 220. 

 Calcium und Digitalis auf die aktiven und passiven 

 Kaliumbewegungen durch die Erythrocytenmembran. 221. 

 Nauny- Schrniedebergs Arch, exper. Path, u Pharmakol. 231 : 



577, 1957- 222- 



LOttoau, H. C. and R. Niedergerke. The antagonism 



between Ca and Na ions on the frog's heart. J. Physiol. 



143:486, 1958. 



McDovvALL, R. J. S., A. F. Munro, and A. F. Zay.\t. 



Sodium and cardiac muscle. J. Physiol. 130: 615, 1955. 



Maizels, M. Active cation transport in erythrocytes. 



Symposia Soc. Exper. Biol. 8: 202, 1954. 



Maizels, M. Calcium ions and the permeability of 



human red cells. Nature, London 184: 366, 1959. 



Mallov, S. and J. S. RoBB. Behavior of actomyosin 



threads. Fed. Proc. 8: 104, 1949. 



Mandelstamm, M. Uber den Zusammenhang zwischen 



Digitalis- und Calciumwirkung. Ztschr. ges. exper. Med. 51 : 



633, 1926. 



Mandoki, J. J. and J. Alanis. Efecto de la actividad 



rapida sobre la amplitud de la contraccion del musculo 



ventricular. Arch. Inst, cardial. Mexico 19: 79, 1949. 



Manery, J. F. Water and electrolyte metabolism. Physiol. 



^"■- 34: 334. 1954- 



Mangun, G. H., H. S. Reichle, and V. C. Myers. 

 Further studies on human cardiac and \oluntary muscle. 

 A..M.A. Arch. Int. Med. 67: 320, 1941- 

 Matsuda, K., B. F. Hoffman, C. N. Ellnes, M. Katz, 

 .^ND C. McC. Brooks. Veratrine induced prolongation of 

 repolarization in the mammalian heart. XIX Inter- 

 national Physiological Congress, 1953, p. 596. 

 Matthews, S. A. and D. E. Jackson. The action of 

 magnesium sulphate upon the heart and the antagonistic 

 action of some other drugs. Am. J. Physiol. 19:5, 1907. 

 Mines, G. R. On functional analysis by the action of 

 electrolytes. J. Physiol. 46: 188, 191 3. 

 Mitchell, J. H., J. P. Gilmore, R. J. Linden, and S. J. 

 Sarnoff. Effect of increasing aortic pressure on the 

 performance characteristics of the left ventricle. Fed. Proc. 

 19: 119, i960. 



Moulin, M. and W. Wilbrandt. Die Wirkung von 

 Kalium and Calcium auf das Treppenphanomen am 

 Froschherzen. Experientia 11 : 72, 1955. 

 Mudge, G. H. Electrolyte and water metabolism of 

 rabbit kidney slices: effect of metabolic inhibitors. Am. 

 J. Physiol. 167: 206, 1 95 1. 



Mueller, H. The action of relaxing factor on actomyosin. 

 Biochim. el binphys. acta 39: 93, i960. 



Murnaghan, M. F. The antiaccelerator action of quinine 

 on the isolated perfused heart of the cat. Arch, internal, 

 pharmacodyn. 120:312, 1959. 



Nayler, W. G. The effect of strophanthin-G on the rate 

 of deamination of adenyl compounds. Australian J. Exper. 

 Biol. & M. Sc. 37: 109, 1959. 



Nayler, W. G. and M. McCulloch. The action of 

 anions on cardiac muscle. Australian J. Exper. Biol. & 

 .\I. Sc. 38: 117, i960. 



.Niedergerke, R. The 'staircase' phenomenon and the 

 action of calcium on the heart. J. Physiol. 134: 569, 1956. 

 Niedergerke, R. The potassium chloride contracture of 

 the heart and its modification by calcium. J. Physiol. 134: 



584. 1956- 



Niedergerke, R. The rate of action of calcium ions on 

 the contraction of the heart. J. Physiol. 138: 506, 1957. 

 Niedergerke, R. Calcium and the activation of con- 

 traction. Experientia 15: 128, 1 959. 

 NiEDERGERiiE, R. AND E. J. Harris. Accumulation of 



