Changes in force and calcium sensitivity in the developing avian heart.
In skinned trabeculae, the calcium sensitivity of the contractile apparatus was higher in the embryo than in the young adult, and age-dependent changes in calcium sensitivity are correlated with isoform switching in troponin T.
The relationship between calcium and the metabolism of plasma membrane phospholipids in hemolysis induced by brown spider venom phospholipase‐D toxin
- D. Chaves-Moreira, F. N. Souza, Silvio S. Veiga
- Biology, ChemistryJournal of Cellular Biochemistry
- 1 September 2011
The data provided herein, suggest that the brown spider venom phospholipase‐D‐induced hemolysis of human erythrocytes is dependent on the metabolism of membrane phospholIPids, such as SM and LPC, generating bioactive products that stimulate a calcium influx into red blood cells mediated by the L‐type channel.
Influence of ionic strength on contractile force and energy consumption of skinned fibers from mammalian and crustacean striated muscle.
- R. Godt, R. Fogaça, M. Andrews, T. Nosek
- BiologyAdvances in Experimental Medicine and Biology
The data indicate that, even in the best of salts, destabilization of the actomyosin complex may play a role in the effect of high ionic strength on the contractile process.
The effect of myosin regulatory light chain phosphorylation on the frequency-dependent regulation of cardiac function.
- F. A. Dias, L. Walker, B. Wolska
- BiologyJournal of Molecular and Cellular Cardiology
- 1 August 2006
Profile of Educational Technology Use by Medical Students and Evaluation of a New Mobile Application Designed for the Study of Human Physiology
- Erica Y. Oliveira, Nathalia I. Crosewski, Fernando A. L. Dias
- MedicineJournal of medical systems
- 27 August 2019
A newly developed app for the study of human physiology was useful for assisted learning and considered a tool for self-assessment in medical students and among students enrolled in medical school.
Anti-fatigue activity of an arabinan-rich pectin from acerola (Malpighia emarginata).
- R. Klosterhoff, L. Kanazawa, L. M. Cordeiro
- BiologyInternational Journal of Biological…
- 1 November 2017
Effect of cardiac neural crest ablation on contractile force and calcium uptake and release in chick heart.
- T. Nosek, R. Fogaça, C. Hatcher, M. Brotto, R. Godt
- BiologyAmerican Journal of Physiology
- 1 September 1997
Cardiac neural crest ablation in the chick embryo at stages 8-10 results in reduced contractility of the heart that can be observed as early as stage 14, and effects on Ca2+ metabolism explain, in part, the decrease in the intracellular Ca 2+ transient and myocardial contractility observed with CNCA.
Contraction of developing avian heart muscle.
- R. Godt, R. Fogaça, I. K. Silva, T. Nosek
- BiologyComparative biochemistry and physiology…
- 1 June 1993
Mechanisms involved in the in vitro contractile dysfunction induced by different concentrations of ferrous iron in the rat myocardium.
- Renata Andrade Ávila, M. A. S. C. Silva, J. V. Peixoto, Ilana Kassouf-Silva, R. Fogaça, L. dos Santos
- BiologyToxicology in Vitro
- 1 October 2016
The effect of 2,3-butanedione 2-monoxime (BDM) on ventricular trabeculae from the avian heart
- M. Brotto, R. Fogaça, T. Creazzo, R. Godt, T. Nosek
- BiologyJournal of Muscle Research and Cell Motility
- 1 February 1995
2,3-butanedione 2-monoxime (BDM, 3–30 mm) decreased twitch force of intact ventricular trabeculae isolated from 19-day embryonic chick hearts in a dose-dependent manner and was ascribed predominantly to depression of the contractile apparatus while, at higher concentrations of BDM, there is an additional inhibitory effect of B DM on excitation-contraction coupling.