[Changes in uncoupling protein-2, 3 mRNA expression in the scalded rats after escharectomy at different post scalding stages]

[Changes in uncoupling protein-2, 3 mRNA expression in the scalded rats after escharectomy at different post scalding stages] Research Abstract Details 

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[Changes in uncoupling protein-2, 3 mRNA expression in the scalded rats after escharectomy at different post scalding stages] Abstract Text:

Feng Li,Zhen-rong Guo,Jia-ke Chai,Zhi-yong Sheng,

OBJECTIVE: To investigate the expression of uncoupling protein (UCP)-2, 3 mRNA in skeletal muscle of the scalded rats after escharectomy at different post scalding stages. METHODS: One hundred and twenty Wistar rats were employed in the study, in which 8 served as normal control (C) and 112 were subjected to 30% TBSA 3rd degree scalding and then again, divided into 4 groups. The rats in A group were sacrificed on 8th, 24th, 96th, 120th and 168th post scalding hours (PSHs) without escharectomy. The rats in B group underment escharectomy at 8 PSH, and those in C group underment escharectomy at 24 PSH. All the rats in both groups were sacrificed on 96, 120 and 168 PSHs after escharectomy, Escharectomy was performed at 96 PSH in rats of D group, and they were sacrificed on 120 and 168 PSHs after escharectomy. The serum levels of leptin and TNFalpha, and the expression level of UCP2 mRNA were determined at all time points in all groups of rats. RESULTS: (1) The serum levels of leptin in A group were obviously lower than that in C group (P < 0.01) during 24 approximately 168 PSHs, while those in B, C and D groups were much higher than those in A group (P < 0.01) during 24 approximately 168 PSH. (2) The serum TNFalpha levels in A group at all time points were higher than that in control group, while that in B group at all time points were lower than that in A group (P < 0.05 or 0.01), and that in C group at 168 PSH was lower than that in A group (P < 0.05). (3) The UCP2 mRNA expression in skeletal muscle in A group was increased evidently since 8 PSH (P < 0.01), peaking at 24 PSH and lowering thereafter, while that in B and C groups at 168PSH was significantly lower than that in A group at the same time points (0.32 and 0.35 vs 0.71, P < 0.05). The trend of the change in UCP3 mRNA expression in skeletal muscle was similar to that of UCP2. CONCLUSION: The postburn up-regulation of UCP mRNA expression might play important roles in the increase of metabolic rate. Escharectomy during shock stage could lower down the expression of UCP2 and UCP3 mRNA expression, and it could be beneficial by lowering metabolic rate.

[Changes in uncoupling protein-2, 3 mRNA expression in the scalded rats after escharectomy at different post scalding stages] Publishing Authors By Initials

F Li,ZR Guo,JK Chai,ZY Sheng,

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[Changes in uncoupling protein-2, 3 mRNA expression in the scalded rats after escharectomy at different post scalding stages] Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Zhonghua shao shang za zhi = Zhonghua shaoshang za

VOLUME: 20

Page Numbers: 268-70

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ISSN: 1009-2587

DAY: 25

MONTH: Oct

YEAR: 2004

[Changes in uncoupling protein-2, 3 mRNA expression in the scalded rats after escharectomy at different post scalding stages] Information

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LANGUAGE: chi

NlmUniqueID: 100959418

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Grant and Affiliation Information for [Changes in uncoupling protein-2, 3 mRNA expression in the scalded rats after escharectomy at different post scalding stages]

AFFILIATION: Burn Institute, The 304th Hospital of PLA, Beijing 100037, P.R. China.

Country: China

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MEDLINETA: Zhonghua Shao Shang Za Zhi

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