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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Yang, Jingchun Xu, Xiaolei |
| Description | Author Affiliation: Yang J ( Division of Cardiovascular Diseases, Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine.) |
| Abstract | Zebrafish embryo becomes a popular in vivo vertebrate model for studying cardiac development and human heart diseases due to its advantageous embryology and genetics. About 100-200 embryos are readily available every week from a single pair of adult fish. The transparent embryos that develop ex utero make them ideal for assessing cardiac defects. The expression of any gene can be manipulated via morpholino technology or RNA injection. Moreover, forward genetic screens have already generated a list of mutants that affect different perspectives of cardiogenesis. Whole mount immunostaining is an important technique in this animal model to reveal the expression pattern of the targeted protein to a particular tissue. However, high resolution images that can reveal cellular or subcellular structures have been difficult, mainly due to the physical location of the heart and the poor penetration of the antibodies. Here, we present a method to address these bottlenecks by dissecting heart first and then conducting the staining process on the surface of a microscope slide. To prevent the loss of small heart samples and to facilitate solution handling, we restricted the heart samples within a circle on the surface of the microscope slides drawn by an immEdge pen. After the staining, the fluorescence signals can be directly observed by a compound microscope. Our new method significantly improves the penetration for antibodies, since a heart from an embryonic fish only consists of few cell layers. High quality images from intact hearts can be obtained within a much reduced procession time for zebrafish embryos aged from day 2 to day 6. Our method can be potentially extended to stain other organs dissected from either zebrafish or other small animals. |
| File Format | HTM / HTML |
| e-ISSN | 1940087X |
| DOI | 10.3791/3510 |
| Journal | Journal of Visualized Experiments |
| Issue Number | 59 |
| Language | English |
| Publisher | MyJove Corp. |
| Publisher Date | 2012-01-10 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Discipline Physical Sciences Discipline Life Sciences Discipline Medicine Heart Anatomy & Histology Embryology Immunohistochemistry Myocardium Ultrastructure Animals Cardiac Surgical Procedures Cytology Zebrafish Research Support, N.i.h., Extramural Video-audio Media |
| Content Type | Text |
| Resource Type | Article |
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