Effects of dantrolene sodium on isolated skeletal, smooth and cardiac muscle of the guinea-pig

1977 ◽  
Vol 29 (1) ◽  
pp. 628-630 ◽  
Author(s):  
W. C. Bowman ◽  
H. H. Khan
Keyword(s):  
Guinea Pig ◽  
Cardiac Muscle ◽  
Dantrolene Sodium

scholarly journals Effects of an unprecedented polypeptide polytheonamide B isolated from marine sponge on the guinea-pig cardiac muscle.

1996 ◽  
Vol 71 ◽  
pp. 313
Author(s):  
Matomo Nishio ◽  
Nobuhiro Fusetani ◽  
Shigeki Matsunaga ◽  
Ikunohu Muramatsu
Keyword(s):  
Guinea Pig ◽  
Cardiac Muscle ◽  
Marine Sponge

scholarly journals Propagation of Action Potentials and the Structure of the Nexus in Cardiac Muscle

1965 ◽  
Vol 48 (5) ◽  
pp. 797-823 ◽  
Author(s):  
L. Barr ◽  
M. M. Dewey ◽  
W. Berger
Keyword(s):  
Guinea Pig ◽  
Cardiac Muscle ◽  
Action Potentials ◽  
Structural Changes ◽  
Sucrose Solution ◽  
Electrical Coupling ◽  
Intercalated Discs ◽  
Sucrose Gap ◽  
Specialized Structure ◽  
Frog Atrium

The hypothesis that the nexus is a specialized structure allowing current flow between cell interiors is corroborated by concomitant structural changes of the nexus and changes of electrical coupling between cells due to soaking in solutions of abnormal tonicity. Fusiform frog atrial fibers are interconnected by nexuses. The nexuses, desmosomes, and regions of myofibrillar attachment of this muscle are not associated in a manner similar to intercalated discs of guinea pig cardiac muscle. Indeed, nexuses occur wherever cell membranes are closely apposed. Action potentials of frog atrial bundles detected extracellularly across a sucrose gap change from monophasic to diphasic when the gap is shunted by a resistor. This indicates that action potentials are transmitted across the gap when sufficient excitatory current is allowed to flow across the gap. When the sucrose solution in the gap is made hypertonic, propagation past the gap is blocked and the resistance between the cells in the gap increases. Electron micrographs demonstrate that the nexuses of frog atrium and guinea pig ventricle are ruptured by hypertonic solutions.

Action potential duration and force-frequency relationship in isolated rabbit, guinea pig and rat cardiac muscle

1996 ◽  
Vol 166 (2) ◽  
pp. 150-155 ◽  
Author(s):  
P. Szigligeti ◽  
C. Pankucsi ◽  
T. B�ny�sz ◽  
A. Varr� ◽  
P. P. N�n�si
Keyword(s):  
Guinea Pig ◽  
Action Potential ◽  
Cardiac Muscle ◽  
Action Potential Duration ◽  
Force Frequency ◽  
Frequency Relationship

scholarly journals Hypersensitivity of guinea-pig cardiac muscle to histamine after catecholamine depletion

1992 ◽  
Vol 58 ◽  
pp. 152
Author(s):  
Nobuyuki Okazaki ◽  
Kouichi Tanonaka ◽  
Shoji Yoshida ◽  
Norio Takagi ◽  
Satoshi Takeo
Keyword(s):  
Guinea Pig ◽  
Cardiac Muscle

scholarly journals Effects of saponins on the isolated guinea-pig cardiac muscle and canine cardiac sarcolemmal vesicles

1984 ◽  
Vol 36 ◽  
pp. 273
Author(s):  
Yasundo Yamasaki ◽  
John L. Sutko ◽  
Katsuaki Ito ◽  
Yoshikazu Enomoto
Keyword(s):  
Guinea Pig ◽  
Cardiac Muscle ◽  
Sarcolemmal Vesicles

scholarly journals The mode of inotropic action of ciguatoxin on guinea-pig cardiac muscle

1988 ◽  
Vol 95 (3) ◽  
pp. 876-882 ◽  
Author(s):  
Asami Seino ◽  
Masaki Kobayashi ◽  
Kazutaka Momose ◽  
Takeshi Yasumoto ◽  
Yasushi Ohizumi
Keyword(s):  
Guinea Pig ◽  
Cardiac Muscle ◽  
Inotropic Action

Effects of dantrolene sodium on the contractil properties of isolated guinea-pig pyel-ureter

1982 ◽  
Vol 14 (9) ◽  
pp. 807-814 ◽  
Author(s):  
D. Mitolo-Chieppa ◽  
D. Conte Camerino ◽  
F. Cagnazzo ◽  
G.F. Megna ◽  
M.D. Lograno
Keyword(s):  
Guinea Pig ◽  
Dantrolene Sodium
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