Results 11 to 20 of about 2,128,557 (346)

Participation of G Proteins in Natriuretic Peptide Hormone Secretion from Heart Atria [PDF]

open access: bronzeEndocrinology, 2004
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
openalex   +2 more sources

Basic fibroblast growth factor in atria and ventricles of the vertebrate heart. [PDF]

open access: bronzeThe Journal of cell biology, 1989
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
openalex   +4 more sources

Functional and Structural Differences in Atria Versus Ventricles in Teleost Hearts

open access: hybrid, 2012
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
openalex   +5 more sources

Electrical Remodeling of the Atria in Congestive Heart Failure: Electrophysiological and Electroanatomic Mapping in Humans [PDF]

open access: yesCirculation, 2003
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

Spironolactone reduces fibrosis of dilated atria during heart failure in rats with myocardial infarction

open access: bronzeEuropean Heart Journal, 2005
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
openalex   +2 more sources

Twin heart with a fused atria and separate ventricles in conjoined twins

open access: yesAnnals of Pediatric Cardiology, 2010
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
doaj   +3 more sources

Asymmetry of the Variability of Heart Rate and Conduction Time Between Atria and Ventricles

open access: goldCirculation Journal, 2013
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
openalex   +5 more sources

Home - About - Disclaimer - Privacy