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Updated: Aug 15, 2026
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Analysis of Cardiomyocyte Development using Immunofluorescence in Embryonic Mouse Heart
Published on: March 26, 2015
Identification of genes associated with myocardial development
1Department of Clinical Biochemistry, Toronto Hospital, University of Toronto, Canada.
Journal of Molecular and Cellular Cardiology
|June 1, 1996
Summary
This study sequenced over 10,000 human heart expressed sequence tags (ESTs) to identify genes involved in myocardial development. A small percentage of these ESTs showed differential expression, offering insights into cardiac gene regulation.
Area of Science:
- Cardiovascular Biology
- Molecular Genetics
- Gene Expression Profiling
Background:
- The human heart's gene expression profile is crucial for understanding myocardial development and cardiovascular function.
- Large-scale sequencing projects are essential for cataloging transcripts in specific tissues.
Purpose of the Study:
- To identify novel and known genes expressed in the human heart using cDNA sequencing.
- To investigate differential gene expression patterns during human heart development.
Main Methods:
- Accumulation of over 10,000 expressed sequence tags (ESTs) from human heart cDNA libraries.
- Dot blot hybridization using neonatal and adult heart mRNA probes to screen for differential expression.
- Northern blot analysis for verification of differentially expressed clones.
Main Results:
- Screened 1505 cDNA clones, identifying 924 novel and 581 known transcripts.
- Approximately 1.4% of screened clones exhibited differential expression during heart development.
- Established a foundation for studying the human heart's gene expression profile.
Conclusions:
- cDNA sequencing and hybridization techniques are effective for characterizing human heart transcripts.
- Differential gene expression plays a role in myocardial development.
- Further analysis of known transcripts can elucidate the heart's gene expression profile within the cardiovascular system.
