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Updated: Aug 8, 2026

Protocol for Long Duration Whole Body Hyperthermia in Mice
Published on: August 25, 2012
Physiological effects of hyperthermia: response of capillary blood flow and structure to local tumor heating
Abstract:
Specific capillary blood flow and small-vessel pathology in animal tumors (rhabdomyosarcoma BA-1112) of WAG/Rij rats were examined following local tumor heating to 40-44.5 degrees C. Blood flow in tumors heated to 40-41 degrees C for 40 minutes was reduced initially by about 50%, but returned to near preheating values within 72 hours, consistent with the histopathological observations indicating small-vessel dilation and temporary congestion. The application of hyperthermia greater than 43 degrees C (for 40 minutes) resulted in the virtual elimination of capillary blood flow, consistent with pathological findings of widespread vessel rupture and hemorrhage in this temperature range.
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