نتایج جستجو برای: epicardium
تعداد نتایج: 1451 فیلتر نتایج به سال:
It has been proposed that VF waves emanate from stable localized sources, often called "mother rotors." However, evidence for the existence of these rotors is conflicting. Using a new panoramic optical mapping system that can image nearly the entire ventricular epicardium, we recently excluded epicardial mother rotors as the drivers of Wiggers' stage II VF in the isolated swine heart. Furthermo...
600 The Journ one in the perioperative period prevents postoperative AF; however, its challenging side-effect profile limits its routine and widespread use as prophylaxis. It was therefore with great interest that we recently read the report by Feng and colleagues describing their success in applying a topical amiodarone-releasing hydrogel on the atrial surface during coronary artery bypass gra...
We for the first time reported evidence for the existence of a novel network, a PVS, abovethe epicardium of the rat heart. (1) We were consecutively able to visualize the PVs and the PNs above the epicardial spaces of five rats' hearts by using Cr-Hx spraying or injection. (2) Hematoxylin and eosin (H&E) and toluidine blue staining of the PVs and the PNs showed that they consisted of a basophil...
Epicardial signaling and Rxra are required for expansion of the ventricular myocardial compact zone. Here, we examine Raldh2(-/-) and Rxra(-/-) mouse embryos to investigate the role of retinoic acid (RA) signaling in this developmental process. The heart phenotypes of Raldh2 and Rxra mutants are very similar and are characterized by a prominent defect in ventricular compact zone growth. Althoug...
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