Exercise of heat-exposed rats prevents myocardial pathology
| Autor: | Michal Horowitz, E. Levy, R. Yarom |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
Cardioprotection
Pathology medicine.medical_specialty Physiology Heart morphology business.industry Treatment regimen Physical exercise Biochemistry Sedentary life style Circulatory system Medicine Myocardial necrosis General Agricultural and Biological Sciences business Mitochondrial Volume Developmental Biology |
| Zdroj: | Journal of Thermal Biology. 18:159-163 |
| ISSN: | 0306-4565 |
| DOI: | 10.1016/0306-4565(93)90030-w |
| Popis: | 1. 1.|Light and electron microscope morphometry has been used to study the effect on heart morphology of a sedentary life style in normothermic (24°C) and warm acclimated (34°C) rats in comparison with exercised normothermic and warm acclimated rats. 2. 2.|The sedentary acclimated rats had multiple foci of myocardial necrosis while the exercised rats did not. The capillary to myofibre ratio and the number of mast cells were higher in the acclimated exercised hearts than in hearts from all the other groups. The intercapillary distance and the mitochondrial volume fractions were not affected by any treatment regime. 3. 3.|It is concluded that although some neoangiogenesis occurs during exercise + heat, the neoangiogenesis does not explain the absence of myocardial pathology produced by heat alone. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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