Journal
BIOMECHANICS AND MODELING IN MECHANOBIOLOGY
Volume 4, Issue 4, Pages 201-210Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s10237-005-0002-1
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Funding
- NHLBI NIH HHS [HL-68118] Funding Source: Medline
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The hyperthermia and thermal denaturation literatures reveal a time-temperature equivalency when heating cells or connective tissues: thermal damage increases with increasing temperature (for the same duration) and increases with increasing duration (for the same temperature). Recent findings conversely suggest that increasing the mechanical loading on a tissue during heating decreases the thermal damage (for a given temperature and duration of heating). Surprisingly, however, there are few histological correlates of such damage. In this paper, we show that progressive light microscopic changes - swelling of collagen bands, thickening of collagen-rich layers, hyalinization, and loss of birefringence - correlate very well with both increased heating, times and decreased mechanical loading. Increased mechanical stress is thus thermally protective and should be considered in the design of clinical procedures that use heating to treat diseases or injuries.
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