Autonomic control of heart rate and blood pressure in spontaneously hypertensive rats during aversive classical conditioning.

1981 ◽  
Vol 95 (6) ◽  
pp. 978-990 ◽  
Author(s):  
Daniel C. Hatton ◽  
R. Allan Buchholz ◽  
Robert D. Fitzgerald
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Classical Conditioning ◽  
Spontaneously Hypertensive Rats ◽  
Autonomic Control ◽  
Hypertensive Rats ◽  
Spontaneously Hypertensive ◽  
Aversive Classical Conditioning

Heart rate responses of spontaneously hypertensive rats during aversive classical conditioning

1979 ◽  
Vol 27 (1) ◽  
pp. 107-114 ◽  
Author(s):  
Daniel C. Hatton ◽  
Lawrence D. Wilkin ◽  
David L. Francisco ◽  
John W. Hoffman ◽  
R. Allan Buchholz ◽  
...  
Keyword(s):  
Heart Rate ◽  
Classical Conditioning ◽  
Spontaneously Hypertensive Rats ◽  
Hypertensive Rats ◽  
Spontaneously Hypertensive ◽  
Aversive Classical Conditioning

Regression of myocardial hypertrophy and influence of adrenergic system

1983 ◽  
Vol 244 (1) ◽  
pp. H97-H101 ◽  
Author(s):  
S. Sen ◽  
R. C. Tarazi
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Regression Analysis ◽  
Arterial Pressure ◽  
Spontaneously Hypertensive Rats ◽  
Myocardial Hypertrophy ◽  
Cardiac Response ◽  
Adrenergic System ◽  
Hypertensive Rats ◽  
Spontaneously Hypertensive

Studies of regression of myocardial hypertrophy in spontaneously hypertensive rats (SHR) suggest that the adrenergic system may play an important role in the reversal of hypertrophy. The effect of propranolol on reversal of hypertrophy, however, is still controversial. This study describes the effect of propranolol, given alone or in combination with hydralazine in different ratios for 4 wk, on blood pressure (BP), ventricular weight, and myocardial catecholamine (MC) concentrations. The data show that a certain ratio of propranolol to hydralazine (750:30) leads to moderate BP control (196-156 mmHg) without increased MC (634 vs. 552 ng/g) and moderately reduced hypertrophy. Reduction of BP alone with increased MC (hydralazine alone) or reduction of MC without BP control (propranolol alone) failed to reduce hypertrophy. A significant correlation between both ventricular weight and heart rate with MC (r = 0.6) was obtained by multiple regression analysis. This study suggests that adrenergic factors seem to play an important role in modulating structural cardiac response to variations in arterial pressure.

scholarly journals Effects of Concentrated Ambient Particles on Heart Rate, Blood Pressure, and Cardiac Contractility in Spontaneously Hypertensive Rats

2004 ◽  
Vol 16 (6-7) ◽  
pp. 421-429 ◽  
Author(s):  
Chuen-Chau Chang ◽  
Jing-Shiang Hwang ◽  
Chang-Chuan Chan ◽  
Peng-Yau Wang ◽  
Tsuey-Hwa Hu ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Spontaneously Hypertensive Rats ◽  
Cardiac Contractility ◽  
Hypertensive Rats ◽  
Spontaneously Hypertensive ◽  
Ambient Particles
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