© 2000 by European Society of Cardiology
Copyright © 2000, European Society of Cardiology
A Whisper on the wind spawns a storm
Division of Cardiovascular Diseases, Department of Medicine, University of Tennessee Health Science Center, Memphis College of Medicine, Memphis, TN USA
* Corresponding author. Tel.: +901-448-5759; fax: +901-448-8084 KTWeber@utmem.edu
Received 11 February 2000; accepted 14 February 2000
| The first 10% of the full text of this article appears below. |
The heart, like many other organs, is composed of parenchyma surrounded by stroma. In this case, highly differentiated and very specialized cardiac myocytes are connected to and tethered within a three dimensional scaffolding of structural protein. Cardiac myocytes number one-third of cells found in the heart. Noncardiomyocytes, such as fibroblasts, endothelial and vascular smooth muscle cells, account for the majority of the remaining two-thirds. Interstitial fibroblasts are responsible for normal synthesis and degradation of this extracellular network, an albeit slow yet nonetheless ongoing process [1]. Fibroblasts are undifferentiated and pluripotent with a diverse portfolio of phenotypic expressions and functions. Myofibroblasts are an example of specialized fibroblast-like cells that appear at sites of tissue repair to carry out fibrogenesis and other functions [2].
Type I collagen is the dominant fibrillar collagen of the hearts
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