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Methods Mol Biol. 2012;843:11-20. doi: 10.1007/978-1-61779-523-7_2.

Quantifying cardiac functions in embryonic and adult zebrafish.

Author information

1
Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, USA.

Abstract

Zebrafish embryos have been extensively used to study heart development and cardiac function, mainly due to the unique embryology and genetics of this model organism. Since most human heart disease occurs during adulthood, adult zebrafish models of heart disease are being created to dissect mechanisms of the disease and discover novel therapies. However, due to its small heart size, the use of cardiac functional assays in the adult zebrafish has been limited. To address this bottleneck, the transparent fish line casper;Tg(cmlc2:nuDsRed) that has a red fluorescent heart can be used to document beating hearts in vivo and to quantify cardiac functions in adult zebrafish. Here, we describe our methods for quantifying shortening fraction and heart rate in embryonic zebrafish, as well as in the juvenile and adult casper;Tg(cmlc2:nuDsRed) fish. In addition, we describe the red blood cell flow rate assay that can be used to reflect cardiac function indirectly in zebrafish at any stage.

PMID:
22222517
PMCID:
PMC3762588
DOI:
10.1007/978-1-61779-523-7_2
[Indexed for MEDLINE]
Free PMC Article

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