The positive inotropic effect of the aqueous extract of Convallaria keiskei in beating rabbit atria

Life Sciences ◽  
2006 ◽  
Vol 79 (12) ◽  
pp. 1178-1185 ◽  
Author(s):  
Deok Ho Choi ◽  
Dae Gill Kang ◽  
Xun Cui ◽  
Kyung Woo Cho ◽  
Eun Jin Sohn ◽  
...  
Keyword(s):  
Aqueous Extract ◽  
Positive Inotropic Effect ◽  
Inotropic Effect ◽  
Rabbit Atria

scholarly journals An aqueous extract of Zanthoxylum schinifolium has a positive inotropic effect in beating rabbit atria

2008 ◽  
Vol 22 (S1) ◽  
Author(s):  
Hao Zhen Cui ◽  
Dae Gill Kang ◽  
Seung Ju Kim ◽  
Deok Ho Choi ◽  
Kyung Woo Cho ◽  
...  
Keyword(s):  
Aqueous Extract ◽  
Positive Inotropic Effect ◽  
Inotropic Effect ◽  
Zanthoxylum Schinifolium ◽  
Rabbit Atria

Screening of Positive Inotropic Effect from Herbal Extracts in Beating Rabbit Atria

2016 ◽  
Vol 30 (1) ◽  
pp. 40
Author(s):  
Yun Jung Lee ◽  
Oh Jeong Kwon ◽  
Hye Yoom Kim ◽  
Seung Namgung ◽  
Jae Yun Lee ◽  
...  
Keyword(s):  
Positive Inotropic Effect ◽  
Inotropic Effect ◽  
Herbal Extracts ◽  
Rabbit Atria

Effect of uranyl ions on isometric contractions in rabbit atria

1978 ◽  
Vol 235 (3) ◽  
pp. H295-H298
Author(s):  
J. G. Mill ◽  
D. V. Vassallo ◽  
P. Campanha Vde
Keyword(s):  
Calcium Concentration ◽  
Positive Inotropic Effect ◽  
Indirect Evidence ◽  
Negative Inotropic Effect ◽  
Rabbit Heart ◽  
Blocking Effect ◽  
Inotropic Effect ◽  
Isometric Contractions ◽  
Uranyl Ions ◽  
Rabbit Atria

The effects of uranyl ions on isometric contractions of atrial strips of rabbit heart were studied. It was observed that uranyl ions, in a concentration of 1.1 X 10(-5) M, do not alter isometric contraction; 2.2 X 10(-5) M concentration produced a small positive inotropic effect that was magnified at a 4.5 X 10(-5) M concentration; concentrations greater than 1.8 X 10(-5) M produced a negative inotropic effect. There is evidence that the positive inotropic effect is mediated by catecholamine release, in a similar manner to the action of uranyl ions on intestinal smooth muscle preparations. This response was blocked by propranolol and also after tyramine treatment of the preparation. The negative inotropic effect seems to be mediated by a blocking effect on calcium entry through the sarcolemma during activation. Indirect evidence supporting this hypothesis was the observation of a decrease of action of uranyl ions in the presence of isoproterenol and of increased extracellular calcium concentration.

scholarly journals The positive inotropic effect of ethanol extract of Lepidium apetalum in beating rabbit atria

2006 ◽  
Vol 20 (4) ◽  
Author(s):  
Deok Ho Choi ◽  
Seung Ju Kim ◽  
Dae Gill Kang ◽  
Ho Sub Lee
Keyword(s):  
Positive Inotropic Effect ◽  
Ethanol Extract ◽  
Inotropic Effect ◽  
Rabbit Atria

scholarly journals Ethanol Extract ofLycopus lucidusElicits Positive Inotropic Effect Via Activation of Ca2+Entry and Ca2+Release in Beating Rabbit Atria

2013 ◽  
Vol 16 (7) ◽  
pp. 633-640 ◽  
Author(s):  
Hao Zhen Cui ◽  
Hyun Cheol Oh ◽  
Xiang Li ◽  
Yun Jung Lee ◽  
Kyung Woo Cho ◽  
...  
Keyword(s):  
Positive Inotropic Effect ◽  
Ethanol Extract ◽  
Inotropic Effect ◽  
Rabbit Atria

scholarly journals Enhanced G i Signaling Selectively Negates β 2 -Adrenergic Receptor (AR)– but Not β 1 -AR–Mediated Positive Inotropic Effect in Myocytes From Failing Rat Hearts

Circulation ◽  
2003 ◽  
Vol 108 (13) ◽  
pp. 1633-1639 ◽  
Author(s):  
Rui-Ping Xiao ◽  
Sheng-Jun Zhang ◽  
Khalid Chakir ◽  
Pavel Avdonin ◽  
Weizhong Zhu ◽  
...  
Keyword(s):  
Adrenergic Receptor ◽  
Positive Inotropic Effect ◽  
Inotropic Effect ◽  
Rat Hearts
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