muscle fiber

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Related to Atrial myocytes: Atrial natriuretic peptide, Atrial myxoma

muscle fiber

[′məs·əl ‚fī·bər]
(histology)
The contractile cell or unit of which muscle is composed.
References in periodicals archive ?
Atrial myocytes after myocardial infarction is often associated with subsequent heart failure, which could lead to a fatal outcome.
Trayanova, "Electrotonic coupling between human atrial myocytes and fibroblasts alters myocyte excitability and repolarization," Biophysical Journal, vol.
Interestingly, our prior study showed increased glycogen accumulation in the atrial myocytes of MR patients [5].
The voltage-dependent inward currents could be recorded in both atrial myocytes by [I.sub.KAch] stimulation protocol.
Subtype Approaches Findings References cardiomyocytes Atrial myocytes Noggin and 95% atrial-like [51] retinoic acid cardiomyocytes Retinoic acid Increased atrial- [52] specific gene expression; 85% atrial myocytes in cell product Ventricular Noggin and 83% ventricular-like [51] myocytes retinoic acid cardiomyocytes pathway inhibitor ROCK inhibitor, 93-100% ventricular- [53] BMP4, Actvin A, like cardiomyocytes and IWR-1 Pacemaker Tbx18-mediated Pacemaker-like myocytes direct phenotype [54, 55] programming of ventricular myocytes.
Further, it can suppress acetylcholine-induced AF in the rabbit through increasing effective refractory period (ERP) and prolonging the action potential duration (APD) of atrial myocytes [14].
Atrial myocytes transfected with an adenoviral vector expressing PC1/3 processes proANP to both mature ANP and to a truncated form (60).
The contribution of ionic currents to changes in refractoriness of human atrial myocytes associated with chronic atrial fibrillation.
Termination of asynchronous contractile activity in rat atrial myocytes by n-3 polyunsaturated fatty acids.
Rather, there is good reason to believe that the benefit results from direct effects upon atrial myocytes. Angiotensin-2 has been implicated in myocardial structural alterations that would be predicted to promote AF, including increased fibrosis and a marked reduction in connexins, Dr.
The atrial-selective inhibition of sodium channel parameters is related not only to the differential electrophysiological properties between atrial myocardium and ventricular myocardium but also to Wenxin Granule-mediated inactivation of sodium channels in atrial myocytes. When compared with ventricular myocardium, a relatively low concentration of Wenxin Granule inhibited the fast sodium current in the atrial myocardium, increasing the diastolic stimulation threshold, decreasing atrial excitability, and thus terminating or preventing the acetylcholine-mediated atrial fibrillation.[sup][3]
Tavi, "Impact of sarcoplasmic reticulum calcium release on calcium dynamics and action potential morphology in human atrial myocytes: a computational study," PLoS Computational Biology, vol.

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