Electrical Properties of Isolated Cardiomyocytes in a Rat Model of Thiamine Deficiency

In modern society, thiamine deficiency (TD) remains an important medical condition linked to altered cardiac function. There have been contradictory reports about the impact of TD on heart physiology, especially in the context of cardiac excitability. In order to address this particular question, we used a TD rat model and patch-clamp technique to investigate the electrical properties of isolated cardiomyocytes from epicardium and endocardium. Neither cell type showed substantial differences on the action potential waveform and transient outward potassium current. Based on our results we can conclude that TD does not induce major electrical remodeling in isolated cardiac myocytes in either endocardium or epicardium cells.

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Bibliographic Details
Main Authors: Santos-Miranda,Artur, Cruz,Jader Santos, Roman-Campos,Danilo
Format: Digital revista
Language:English
Published: Sociedade Brasileira de Cardiologia - SBC 2015
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0066-782X2015000300010
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