NDLI: Effect of temperature and duration of hyperthermia on HSP72 induction in rat tissues

Content Provider	Springer Nature Link
Author	Ruell, P.A. Hoffman, K.M. Chow, C.M. Thompson, M.W.
Copyright Year	2004
Abstract	The aim of the present study was to determine whether heat shock protein 72 (HSP72) is induced in a heated rat model at rectal temperatures below 42 °C.Rats were divided into a control group and six groups (n=6) heated to different rectal temperatures: 39 °C for 1 h (39), 40.0 °C for either 15 min (40S) or 1 h (40L), 41.0 °C for either 15 min (41S) or 1 h (41L) and 42.0 °C for 15 min (42). Tissues were sampled 4 h after heating.Following 1 h at 40.0 °C, HSP72 was significantly elevated in heart (p < 0.005), but not in gut or liver tissue. In all three tissues, HSP72 was significantly elevated under the conditions 41L and 42 compared to control tissue (p < 0.005). Marked differences were found in the amount of HSP72 induced in different tissues in response to the same heat stress. Duration of heating was important in modulating HSP72 induction, with a significantly greater induction of HSP72 following 1 h compared to 15 min at 41 °C in all three tissues (p < 0.02). A correlation was found between thermal load and HSP72 content in liver, heart (both p < 0.01) and gut (p < 0.001) for the rats heated to 41 and 42 °C. These data show that HSP72 is induced at temperatures below 42 °C, with striking differences between tissues. (Mol Cell Biochem 267: 187–194, 2004)
Starting Page	187
Ending Page	194
Page Count	8
File Format	PDF
ISSN	03008177
Journal	Molecular and Cellular Biochemistry
Volume Number	267
Issue Number	1-2
e-ISSN	15734919
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2004-01-01
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Cardiology Medical Biochemistry Oncology Biochemistry
Content Type	Text
Resource Type	Article
Subject	Cell Biology Medicine Clinical Biochemistry Molecular Biology

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