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請使用永久網址來引用或連結此文件:
https://irlib.pccu.edu.tw/handle/987654321/35412
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| 題名: | Glutamine Administration Modulates Endothelial Progenitor Cell and Lung Injury in Septic Mice |
| 作者: | Pai, MH (Pai, Man-Hui)
Shih, YM (Shih, Yao-Ming)
Shih, JM (Shih, Juey-Ming)
Yeh, CL (Yeh, Chiu-Li) |
| 貢獻者: | 營養系 |
| 關鍵詞: | Angiopoietin
C-X-C chemokine receptor-12
endothelial progenitor cell
glutamine
sepsis |
| 日期: | 2016-11 |
| 上傳時間: | 2017-02-16 10:02:25 (UTC+8) |
| 摘要: | This study investigated the effects of glutamine (GLN) administration on circulating endothelial progenitor cells (EPCs) and lung angiopoietin (Ang) gene expressions in polymicrobial sepsis. Mice were randomly assigned to a normal control group (NC), septic saline group (SS), and septic GLN group (SG). All mice were fed with a chow diet. Sepsis was induced by cecal ligation and puncture (CLP). The mice in SS group were injected with saline, whereas SG group administered 0.75g GLN/kg body weight once via tail vein 1h after CLP. Mice were killed 24 and 48h after CLP. Their blood and lungs were collected for further analysis. The results showed that, compared with normal mice, sepsis resulted in higher C-X-C motif chemokine-12, vascular endothelial growth factor, nitric oxide levels, and a higher circulating EPC percentage. In addition, inflammatory cytokine concentrations and Ang-2 gene expression were upregulated in lung tissues. GLN administration enhanced the mobilization of EPC, and downregulated inflammatory cytokine production and the Ang-2 gene expressions in lungs. Histopathological findings showed that the extent of inflammatory lesions of the lung alveolar was less severe in the SG group than the SS group after CLP. Our results suggest that a single dose of intravenous GLN administration after initiation of sepsis promotes the mobilization of circulating EPC, and modulates the balance of Ang-Tie2 axis that may improve the vascular function, ameliorate inflammation, and protect lung injury against polymicrobial sepsis. |
| 關聯: | SHOCK 卷: 46 期: 5 頁碼: 587-592 |
| 顯示於類別: | [保健營養學系 ] 期刊論文
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