Journal
RESEARCH IN VETERINARY SCIENCE
Volume 99, Issue -, Pages 105-111Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.rvsc.2014.12.014
Keywords
Heat shock protein 90 (Hsp90); Heat shock protein 60 (Hsp60); Heat shock factor-1 (HSF-1); Thermotolerance; Thermal manipulation
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Funding
- King Abdulaziz City for Science and Technology (KACST) [11-BIO 1805-06]
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The effect of thermal manipulation (TM) during embryogenesis (ED 12-18) on mRNA expressions of heat shock proteins (Hsp90, Hsp60 and HSF-1) in muscle, heart and brain tissues during thermal challenge (TC) at post-hatching days 10 and 28 was investigated. Fertile chicken eggs were randomly divided into four groups: Control group (37.8 degrees C), TM1 (39 degrees C for 9 h), TM2 (39 degrees C for 12 h) and TM3 (39 degrees C for 18 h). At days 10 and 28 of age, chicks in TC groups were subjected to thermal challenge (TC) at 43.0 degrees C for 6 h while naive chicks were kept under regular conditions. When compared with the control, TM resulted in a significant increase in mRNA levels of Hsp90, Hsp60 and HSF-lin muscle, heart and brain tissues during embryogenesis and during TC at days 10 and 28 post-hatching. These results indicate a long-term enhancement of Hsp90, Hsp60 and HSF-1 gene expressions associated with improved thermotolerance acquisition in thermally manipulated chicks. (C) 2014 Elsevier Ltd. All rights reserved.
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