| Membrane segregation in atrioventricular nodal myocytes of the golden hamster (Mesocricetus auratus). A cytochemical study using filipin and tomatine. | |
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MedLine Citation:
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PMID: 2606769 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The membrane systems of hamster general atrial and ventricular myocytes were studied and their reactivity with the sterol probes, filipin and tomatine, compared with that of atrioventricular nodal myocytes. The sarcolemma of atrial and atrioventricular nodal myocytes was considerably more reactive to sterol probes than the sarcolemma of general ventricular myocytes. Atrial myocyte sarcolemma was also more reactive than previously reported in rat atrial myocytes. Particle-free regions of annular nexuses were consistently unreactive with all combinations of sterol probes whereas much smaller particle-free regions of macular nexuses and desmosomes were reactive with the same probes. Intracellular membrane systems of all three types of cardiac myocyte reacted in a similar manner with sterol probes. These results indicate variation in comparable sarcolemma composition of cardiac myocytes between the rat and hamster and between cardiac regions within the same species. |
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Authors:
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J N Skepper |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of anatomy Volume: 163 ISSN: 0021-8782 ISO Abbreviation: J. Anat. Publication Date: 1989 Apr |
Date Detail:
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Created Date: 1990-02-22 Completed Date: 1990-02-22 Revised Date: 2009-11-18 |
Medline Journal Info:
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Nlm Unique ID: 0137162 Medline TA: J Anat Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 143-54 Citation Subset: IM |
Affiliation:
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Department of Anatomy, University of Cambridge. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Atrioventricular Node / cytology, metabolism, ultrastructure Cell Membrane / drug effects, metabolism, ultrastructure Cricetinae / anatomy & histology* Female Filipin / diagnostic use, pharmacology Freeze Fracturing Histocytochemistry / methods Mesocricetus / anatomy & histology* Microscopy, Electron Myocardium / cytology*, metabolism, ultrastructure Sterols / metabolism Tomatine / diagnostic use, pharmacology |
| Chemical | |
Reg. No./Substance:
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0/Sterols; 17406-45-0/Tomatine; 480-49-9/Filipin |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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