Participation of G Proteins in Natriuretic Peptide Hormone Secretion from Heart Atria [PDF]
The involvement of G proteins in the mechanism underlying the increased atrial natriuretic factor (ANF) secretion observed after atrial muscle stretch (stretch-secretion coupling) was assessed using a combined pharmacological, immunocytochemical, and ...
Michael Bensimon+5 more
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Basic fibroblast growth factor in atria and ventricles of the vertebrate heart. [PDF]
Extracts from atrial and ventricular heart tissue of several species (chicken, rat, sheep, and cow) are strongly mitogenic for chicken skeletal myoblasts, with the highest apparent concentration of biological activity in the atrial extracts. Using several approaches (biological activity assay and biochemical and immunological analyses), we have ...
Elissavet Kardami, Robert R. Fandrich
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Functional and Structural Differences in Atria Versus Ventricles in Teleost Hearts
Across vertebrates, the fish heart is structurally relatively simple. The heart of teleosts is unique in structure, composed of four chambers in series: venous sinus, atrium, ventricle and bulbus arteriosus. The two chambers acting as pumps are the atrium and ventricle, a simplified ver‐ sion of that seen in tetrapods.
Christine E. Genge+2 more
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Electrical Remodeling of the Atria in Congestive Heart Failure: Electrophysiological and Electroanatomic Mapping in Humans [PDF]
Background— Atrial fibrillation (AF) frequently complicates congestive heart failure (CHF). However, the electrophysiological substrate for AF in humans with CHF remains unknown. We evaluated the electrophysiological and electroanatomic characteristics of the atria in patients with CHF.
P. Sanders+6 more
semanticscholar +5 more sources
AIMS Congestive heart failure (CHF) is associated with severe structural changes of atria, contributing to impaired atrial function and the risk of arrhythmia. This study investigated the effects of CHF treatments on atrial remodelling.
Paul Milliez+8 more
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Cholinesterase activity of left and right atria of the rabbit's heart [PDF]
Sheila Briscoe
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Production of Fibrillation in Isolated Atria of Rabbit Heart [PDF]
William C. Holland, J. H. Burn
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Twin heart with a fused atria and separate ventricles in conjoined twins
One of the most interesting congenital malformations is that of conjoined twins. We report echocardiographic features of twin heart in dicephalus, tribrachius, dispinous, thoracoomphalopagus twin. It showed two hearts fused at atrial level.
Ambar Sameer+3 more
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Asymmetry of the Variability of Heart Rate and Conduction Time Between Atria and Ventricles
Heart rate asymmetry is caused by an unequal contribution of heart rate decelerations and accelerations to heart rate variability. This study evaluates the asymmetric properties of the variability of the AA, HH, VV, AH and HV intervals.We recorded 50 1-min intracardiac ECG tracings from 10 patients (18-66 years old; 8 females) during a routine ...
Przemysław Guzik+7 more
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The refractory period of atria isolated from mammalian hearts
G. S. Dawes, J. R. Vane
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