TY - JOUR T1 - Effects of Cold Stress on Expression of Hsp70 Gene in Blood Lymphocyte of Piglets AU - Yang, Huan Min AU - Li, Shi Ze AU - Wang, Jian Fa AU - Guo, Jing Ru AU - Wu, Yong Kui AU - Ji, Hong AU - Liu, Ju Xiong JO - Journal of Animal and Veterinary Advances VL - 11 IS - 21 SP - 3914 EP - 3920 PY - 2012 DA - 2001/08/19 SN - 1680-5593 DO - javaa.2012.3914.3920 UR - https://makhillpublications.co/view-article.php?doi=javaa.2012.3914.3920 KW - transcription KW -HSP70 mRNA KW -HSP70 KW -cold stress KW -Piglet KW -animal AB - To explore effects of intensity and time of cold stress on expression of Hsp70 gene in blood Lymphocyte of piglets, Western-blotting and real-time PCR were performed to detect expression level of HSP70 gene, respectively. The results showed as followed: at 10 to 4°C, HSP70 expression increased significantly for 0.5 h and subsequently decreased slightly before increasing markedly again at both 6 and 24 h; HSP70 mRNA expression level increased sharply after piglets were exposed for 0.5 h. The condition maintained for 6 h then declined at 12 h it reached a level apparently higher than the level prior to cold exposure at 24 h the transcription level recovered to normal. At 3 to 3°C the expression level increased at 6 h but then returned to pre-exposure levels; mRNA increased significantly at 12 h. At 4-10°C, no marked difference in expression level was detected. In conclusion, HSP70 mRNA expression showed the faster regular pattern therefore, it can be used as an objective parameter to evaluate animal cold stress conditions. ER -