Abstract:
Objectives:To investigate the protective effect of ginsenoside Rg1 on relieving sepsis-induced lung inflammation and injury in vivo and in vitro. Methods:Cultured human pulmonary epithelial cell line A549 was challenged with LPS to induce cell injury, and CLP mouse model was generated to mimic clinical condition of systemic sepsis. Rg1 was applied to cells or animals at indicated dosage. Apoptosis of cultured cells was quantified by flow cytometry, along with ELISA for inflammatory cytokines in supernatant. For septic mice, lung tissue pathology was examined, plus ELISA assay for serum cytokines. Western blotting was used to examine the activation of inflammatory pathways and ER stress marker proteins in both cells and mouse lung tissues. Reactive oxygen species (ROS) level was quantified by DCFDA kit. Results:Ginsenoside Rg1 treatment remarkably suppressed apoptosis rate of LPS-induced A549 cells, relieved mouse lung tissue damage, and elevated survival rate. Rg1 treatment also rescued cells from LPS-induced intracellular ROS. In both A549 cells and mouse lung tissues, further study showed that Rg1 perfusion significantly suppressed the secretion of inflammatory cytokines including tumor necrosis factor- (TNF-) alpha and interleukin- (IL-) 6 and relieved cells from ER stress as supported by decreased expression of marker proteins via upregulating sirtuin 1 (SIRT1). Conclusion:Our results showed that ginsenoside Rg1 treatment effectively relieved sepsis-induced lung injury in vitro and in vivo, mainly via upregulating SIRT1 to relieve ER stress and inflammation. These findings provide new insights for unrevealing potential candidate for severe sepsis accompanied with lung injury.
journal_name
Mediators Inflammjournal_title
Mediators of inflammationauthors
Wang QL,Yang L,Peng Y,Gao M,Yang MS,Xing W,Xiao XZdoi
10.1155/2019/6453296subject
Has Abstractpub_date
2019-02-24 00:00:00pages
6453296eissn
0962-9351issn
1466-1861journal_volume
2019pub_type
杂志文章abstract:OBJECTIVE:In this work we studied the correlation between platelet count, platelet activation, and systemic inflammation in overweight, obese, and morbidly obese individuals. METHODS AND SUBJECTS:A total of 6319 individuals participated in the study. Complete blood counts, high sensitivity C-reactive protein (hs-CRP) ...
journal_title:Mediators of inflammation
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journal_title:Mediators of inflammation
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journal_title:Mediators of inflammation
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journal_title:Mediators of inflammation
pub_type: 杂志文章,评审
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journal_title:Mediators of inflammation
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journal_title:Mediators of inflammation
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journal_title:Mediators of inflammation
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journal_title:Mediators of inflammation
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journal_title:Mediators of inflammation
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journal_title:Mediators of inflammation
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journal_title:Mediators of inflammation
pub_type: 杂志文章,收录出版
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abstract::The therapeutic strategies used in the treatment of hepatitis C are essentially based on the combination of direct-acting antiviral agents (DAAs). This therapy has been shown to be very effective in relation to patient adherence to treatment and has shown high rates of sustained virological response (SVR). However, th...
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journal_title:Mediators of inflammation
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abstract::Paricalcitol, a selective vitamin D receptor (VDR) activator used for treatment of secondary hyperparathyroidism in chronic kidney disease (CKD), has been associated with survival advantages, suggesting that this drug, beyond its ability to suppress parathyroid hormone, may have additional beneficial actions. In this ...
journal_title:Mediators of inflammation
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