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Tumor necrosis factor alpha attenuates glutamine-enhanced skeletal muscle protein synthesis in rats

文献类型:期刊论文

作者Zhou, Jihong; Li, Yousheng; Liu, Fangnan; Cao, Yacheng; Li, Jieshou
刊名NUTRITION RESEARCH
出版日期2007-12-01
卷号27期号:12页码:772-777
关键词total parenteral nutrition glutamine TNF-alpha stable isotope fractional synthesis rate rat
ISSN号0271-5317
DOI10.1016/j.nutres.2007.09.010
通讯作者Li, Yousheng(liys@medmail.com.cn)
英文摘要Glutamine has been widely used in critical illness, surgery, and injury. Previous studies showed that the use of glutamine in nutritional regimens for patients with sepsis was not as effective as in patients of trauma, especially in the early stage of sepsis. The objective of this study was to determine whether the regulation of glutamine on protein synthesis in skeletal muscle could be inhibited by tumor necrosis factor alpha (TNF-alpha), one of the major mediators in sepsis in a rat model, Thirty mate Sprague-Dawley rats were randomly assigned into 3 groups: total parenteral nutrition (TPN; control), Gln (treated with glutamine), and TNF-alpha (treated with glutamine and TNF-alpha). All rats received isonitrogenous and isoenergetic TPN solutions for 3 days, The control group was supplemented with TPN, the glutamine group was given glutamine-enriched TPN, and the TNF-alpha group was supplemented with glutamine-enriched TPN followed by intravenously infused TNF-alpha in the last 24 hours. In the last 30 minutes, all rats were mainlined with [L-N-15]leucine, The concentrations of TNF-alpha and glutamine in plasma and skeletal muscle were measured, and the fractional synthesis rate was assessed. The level of TNF-alpha in the TNF-alpha group was the highest among the 3 groups. The glutamine concentration was elevated more in the TNF-alpha group than in the other 2 groups (P <.05). The fractional synthesis rate increased significantly in the TNF-alpha and On groups than that in the control group, and it was the highest in the Gln group (P < .05). In conclusion, TNF-alpha could attenuate protein synthesis in the skeletal muscle stimulated by glutamine in the early stage of sepsis in rats. (c) 2007 Elsevier Inc. All rights reserved.
收录类别SCI
WOS关键词CRITICALLY-ILL PATIENTS ; SUPPLEMENTED PARENTERAL-NUTRITION ; AMINO-ACIDS ; TRANSLATION INITIATION ; ENTERAL NUTRITION ; GROWTH-HORMONE ; IN-VIVO ; SEPSIS ; METABOLISM ; KINETICS
WOS研究方向Nutrition & Dietetics
WOS类目Nutrition & Dietetics
语种英语
WOS记录号WOS:000251535500006
出版者PERGAMON-ELSEVIER SCIENCE LTD
URI标识http://www.irgrid.ac.cn/handle/1471x/2558729
专题南京土壤研究所
通讯作者Li, Yousheng
作者单位1.Nanjing Univ, Jinling Hosp, Dept Gen Surg, Sch Med, Nanjing 210002, Peoples R China
2.Chinese Acad Sci, Inst Soil Sci, Nanjing 210002, Peoples R China
推荐引用方式
GB/T 7714
Zhou, Jihong,Li, Yousheng,Liu, Fangnan,et al. Tumor necrosis factor alpha attenuates glutamine-enhanced skeletal muscle protein synthesis in rats[J]. NUTRITION RESEARCH,2007,27(12):772-777.
APA Zhou, Jihong,Li, Yousheng,Liu, Fangnan,Cao, Yacheng,&Li, Jieshou.(2007).Tumor necrosis factor alpha attenuates glutamine-enhanced skeletal muscle protein synthesis in rats.NUTRITION RESEARCH,27(12),772-777.
MLA Zhou, Jihong,et al."Tumor necrosis factor alpha attenuates glutamine-enhanced skeletal muscle protein synthesis in rats".NUTRITION RESEARCH 27.12(2007):772-777.

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来源:南京土壤研究所

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