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Data on calcium increases depending on stretch in dystrophic cardiomyocytes.


ABSTRACT: In this data article, intracellular Ca(2+) concentration ([Ca(2+)]i) was measured in isolated ventricular Wild Type (WT) and mdx cardiomyocytes in two different conditions: at rest and during the application of an axial stretch. Using a carbon microfibers technique, axial stretch was applied to mimic effects of physiological conditions of ventricular filling. A study of cation entry with the same experimental model and the manganese quenching method reported (i) a constitutive cation entry in mdx cardiomyocytes and (ii) the involvement of TRPV2 channels in axial-stretch dependant cation entry, "Axial stretch-dependent cation entry in dystrophic cardiomyopathy: involvement of several TRPs channels" (Aguettaz et al., 2016) [1]. Here, the Ca(2+) dye fluo-8 was used for [Ca(2+)]i measurement, in both resting and stretching conditions, using a perfusion protocol starting initially with a calcium free Tyrode solution followed by the perfusion of 1.8 mM Ca(2+) Tyrode solution. The variation of [Ca(2+)]i was found higher in mdx cardiomyocytes.

SUBMITTER: Aguettaz E 

PROVIDER: S-EPMC5007543 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature

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Data on calcium increases depending on stretch in dystrophic cardiomyocytes.

Aguettaz E E   Lopez J J JJ   Krzesiak A A   Constantin B B   Cognard C C   Sebille S S  

Data in brief 20160810


In this data article, intracellular Ca(2+) concentration ([Ca(2+)]i) was measured in isolated ventricular Wild Type (WT) and mdx cardiomyocytes in two different conditions: at rest and during the application of an axial stretch. Using a carbon microfibers technique, axial stretch was applied to mimic effects of physiological conditions of ventricular filling. A study of cation entry with the same experimental model and the manganese quenching method reported (i) a constitutive cation entry in md  ...[more]

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