Stretch-Induced Biased Signaling in Angiotensin II Type 1 and Apelin Receptors for the Mediation of Cardiac Contractility and Hypertrophy

Autor: Kinya Seo, Victoria N. Parikh, Euan A. Ashley

Publikováno v: Frontiers in Physiology, Vol 11 (2020)

The myocardium has an intrinsic ability to sense and respond to mechanical load in order to adapt to physiological demands. Primary examples are the augmentation of myocardial contractility in response to increased ventricular filling caused by eithe

Externí odkaz: https://doaj.org/article/01f5f9f4aaba457692bd151557572e7c

Autocorrelation Patterns in the Left–Ventricular Pressure Course of Isolated Working Hearts at Sinus Rhythm

Autor: Stefan F. J. Langer

Publikováno v: International Cardiovascular Forum Journal, Vol 8, Pp 57-67 (2016)

Background: Observations of short term uniformity or microrhythmical undulation in ventricular pressure courses in sinus rhythm are lacking. Such information is necessary to describe the cardiac steady state meaningfully. The present investigation ai

Externí odkaz: https://doaj.org/article/5d1f41ffc57e43cbbfc6c828bc42de0a

Thick Filament Mechano-Sensing in Skeletal and Cardiac Muscles: A Common Mechanism Able to Adapt the Energetic Cost of the Contraction to the Task

Autor: Gabriella Piazzesi, Marco Caremani, Marco Linari, Massimo Reconditi, Vincenzo Lombardi

Publikováno v: Frontiers in Physiology, Vol 9 (2018)

A dual regulation of contraction operates in both skeletal and cardiac muscles. The first mechanism, based on Ca2+-dependent structural changes of the regulatory proteins in the thin filament, makes the actin sites available for binding of the myosin

Externí odkaz: https://doaj.org/article/1431f346016d4485bf2746c3cd40d450

Distinct contributions of the thin and thick filaments to length-dependent activation in heart muscle

Autor: Xuemeng Zhang, Thomas Kampourakis, Ziqian Yan, Ivanka Sevrieva, Malcolm Irving, Yin-Biao Sun

Publikováno v: eLife, Vol 6 (2017)

The Frank-Starling relation is a fundamental auto-regulatory property of the heart that ensures the volume of blood ejected in each heartbeat is matched to the extent of venous filling. At the cellular level, heart muscle cells generate higher force

Externí odkaz: https://doaj.org/article/20dbbd77c4244cd48fe3a024b1103a02

The Volume-Time Curve by Three-Dimensional Echocardiography in Chagas Cardiomyopathy: Insights into the Mechanism of Hemodynamic Adaptations

Autor: Airandes de Sousa Pinto, Maria Carmo Pereira Nunes, Carlos Alberto Rodrigues, Bráulio Muzzi Ribeiro de Oliveira, João da Rocha Medrado, Timothy C. Tan, Manoel Otavio da Costa Rocha

Publikováno v: Arquivos Brasileiros de Cardiologia, Volume: 118, Issue: 6, Pages: 1099-1105, Published: 02 MAY 2022
Arquivos Brasileiros de Cardiologia, Issue: ahead, Published: 02 MAY 2022
Arquivos Brasileiros de Cardiologia v.118 n.6 2022
Arquivos Brasileiros de Cardiologia
Sociedade Brasileira de Cardiologia (SBC)
instacron:SBC

Resumo Fundamento A ecocardiografia tridimensional (ECO 3D) permite a geração de uma curva volume-tempo representativa das alterações no volume ventricular esquerdo (VE) ao longo de todo o ciclo cardíaco. Objetivo O presente estudo tem como obje

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cec8a9de497d91390fc99ff7b08e5c7a
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0066-782X2022000601099&lng=en&tlng=en