Role of genomic mechanisms on cAMP-dependent positive inotropism in isolated left atrium of rat

Life Sciences ◽  
1999 ◽  
Vol 65 (5) ◽  
pp. 565-572 ◽  
Author(s):  
JoséManuel Rubín ◽  
Agustín Hidalgo ◽  
MaJoséGarcía De Boto ◽  
Manuel Sánchez
Keyword(s):  
Left Atrium ◽  
Positive Inotropism

Role of Putrescine on Androgen-Elicited Positive Inotropism in the Left Atrium of Rats

2008 ◽  
Vol 52 (2) ◽  
pp. 161-166 ◽  
Author(s):  
Lucía Velasco ◽  
Lorena Secades ◽  
Carmen Bordallo ◽  
Javier Bordallo ◽  
María José García de Boto ◽  
...  
Keyword(s):  
Left Atrium ◽  
Positive Inotropism

scholarly journals Epicardial and transverse sinus fat pad near left atrium appendage; role of 3D echocardiography

2020 ◽  
Author(s):  
Reza Mohseni‐badalabadi ◽  
Mohammad Sahebjam ◽  
Mehdi Mohseni‐badalabadi ◽  
Kaveh Hosseini
Keyword(s):  
Left Atrium ◽  
Transverse Sinus ◽  
3D Echocardiography ◽  
Fat Pad

Increases in ornithine decarboxylase activity in the positive inotropism induced by androgens in isolated left atrium of the rat

2001 ◽  
Vol 422 (1-3) ◽  
pp. 101-107 ◽  
Author(s):  
Carmen Bordallo ◽  
José Manuel Rubı́n ◽  
Ana Belén Varona ◽  
Begoña Cantabrana ◽  
Agustı́n Hidalgo ◽  
...  
Keyword(s):  
Left Atrium ◽  
Ornithine Decarboxylase ◽  
Decarboxylase Activity ◽  
Ornithine Decarboxylase Activity ◽  
Positive Inotropism

Intracoronary adenosine enhances myocardial reactive hyperemia after brief coronary occlusion

1985 ◽  
Vol 248 (6) ◽  
pp. H812-H817
Author(s):  
D. Saito ◽  
T. Hyodo ◽  
K. Takeda ◽  
Y. Abe ◽  
H. Tani ◽  
...  
Keyword(s):  
Blood Flow ◽  
Left Atrium ◽  
Coronary Occlusion ◽  
Reactive Hyperemia ◽  
Control Level ◽  
Direct Effects ◽  
Intracoronary Infusion ◽  
Hyperemic Flow ◽  
Hyperemic Response

Adenosine is a prime candidate for the role of mediator between myocardial metabolic state and coronary blood flow. However, there are few reports concerning the direct effects of exogenously added adenosine on coronary autoregulation. The present investigation in the open-chest dog studied the effects of a threshold dose of intracoronary adenosine infusion on reactive hyperemia following brief coronary occlusions. The infused dose did not increase nonocclusive flow by greater than 10%. Adenosine enhanced total hyperemic flow at all occlusions tested (5, 10, 15, 20, and 30 s). Aminophylline pretreatment reduced reactive hyperemia below the control level even in the presence of an intracoronary infusion of adenosine. Adenosine injected into the left atrium and intracoronarily infused papaverine did not affect hyperemic response to 5- and 15-s coronary occlusions. The results suggest that a minimum dose of exogenously added adenosine enhances myocardial reactive hyperemia, possibly by potentiating the effects of endogenous adenosine released during ischemia.

Oxidative stress and inflammatory process in patients with atrial fibrillation: The role of left atrium distension

2009 ◽  
Vol 136 (3) ◽  
pp. 258-262 ◽  
Author(s):  
Dimitris Tousoulis ◽  
Kostas Zisimos ◽  
Charalambos Antoniades ◽  
Elli Stefanadi ◽  
Gerasimos Siasos ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Atrial Fibrillation ◽  
Left Atrium ◽  
Inflammatory Process
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