GUO Hao,REN Jian-xun,LI Lei,et al.Effect of Qihong Capsule on Heart Hemodynamics and Myocardial Consumption of Oxygen in Heart Failure Model Beagle[J].Chinese Journal of Experimental Traditional Medical Formulae,2020,26(20):67-73.
GUO Hao,REN Jian-xun,LI Lei,et al.Effect of Qihong Capsule on Heart Hemodynamics and Myocardial Consumption of Oxygen in Heart Failure Model Beagle[J].Chinese Journal of Experimental Traditional Medical Formulae,2020,26(20):67-73. DOI: 10.13422/j.cnki.syfjx.20202043.
Effect of Qihong Capsule on Heart Hemodynamics and Myocardial Consumption of Oxygen in Heart Failure Model Beagle
To investigate the therapeutic effect of Qihong capsule on pentobarbital sodium induced heart failure in beagle dogs.
Method
2
Thirty healthy adult beagle dogs were randomly divided into 6 groups
6 in each group. They were normal group
model group
digoxin tablet group (40 μg·kg
-1
)
Qihong capsule high
medium and low dose groups (2.6,1.3,0.65 g·kg
-1
). The heart failure model of beagle dogs was established by intravenous infusion of 2% pentobarbital sodium. The success standard of the model was that the maximum rate of rise of left ventricular pressure was reduced by 70%.The corresponding drugs were given through duodenum. The Ⅱ lead electrocardiogram
coronary blood flow
cardiac output
left ventricular pressure and maximum rate of left ventricular pressure rise were measured by multi-channel physiological recorder. The arterial oxygen content and coronary sinus oxygen content were measured by Roche blood oxygen analyzer at different time points
and the myocardial oxygen utilization rate was calculated.
Result
2
After intravenous infusion of 2% pentobarbital sodium for about 15 minutes
beagle dogs began to show obvious symptoms of heart failure. The main manifestations were the increase of PR interval of Ⅱ lead electrocardiogram
the decrease of coronary blood flow
left ventricular pressure
cardiac output
cardiac output
venous oxygen content
and the increase of myocardial oxygen utilization rate (
P
<
0.01) compared with the model group
Qihong capsule significantly increased coronary blood flow at 60-120 min after treatment (
P
<
0.05). The cardiac output of 2.6 g·kg
-1
Qihong capsule increased significantly at 45-60 min after treatment
with the maximum increase of about 16%
which was significantly different from that of model group (
P
<
0.05). At the same time
it can increase the oxygen content of coronary sinus blood
which indicates that the myocardial oxygen supply is increased and the oxygen utilization rate is decreased. Qihong capsule 1.3 g·kg
-1
group significantly increased the maximum rate of left ventricular pressure rise (
P
<
0.05)
the maximum increase rate was about 42%.
Conclusion
2
Qihong capsule can increase coronary blood flow and venous blood oxygen content at the same time
make myocardial nutrient supply sufficient
reduce oxygen utilization rate
on this basis
Qihong capsule can further increase cardiac output and improve cardiac function
so as to play a protective role in heart failure.
关键词
Keywords
references
ABI-SAMRA F , GUTTERMAN D . Cardiac contractility modulation:a novel approach for the treatment of heart failure [J]. Heart Fail Rev , 2016 , 21 ( 6 ): 645 - 660 .
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Related Author
SHEN Shu-jing
XIAN Shao-xiang
HUANG Yan-shou
HUANG Ping-dong
SHEN Shu-jing1
XIAN Shao-xiang2
HUANG Yan-shou2
HUANG Ping-dong3
Related Institution
Guangzhou University of Traditional Chinese Medicine
广州中医药大学第一附属医院
广州中医药大学第三附属医院芳村分院
State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences
Jiangxi Province Key Laboratory of Traditional Chinese Medicine(TCM) Pharmacology,Institute of TCM Health Industry,China Academy of Chinese Medical Sciences