Abstract:
OBJECTIVE:RAGE pathway plays crucial effects in causing acute lung injury (ALI). Dexmedetomidine (DEX) is showed to mitigate sepsis-stimulated ALI. However, its mechanisms have not been verified. The study was to evaluate whether the RAGE pathway participated in the actions of DEX on sepsis-stimulated ALI in rats. METHODS:Male rats were administrated with intravenously DEX 30 min after sepsis. At 24 h of sepsis, lung myeloperoxidase (MPO) and macrophages in the bronchoalveolarlavage fluid (BALF) were observed. The actions of DEX on pro-inflammatory molecules and related mechanisms were determined by immunological methods. RESULTS:It was indicated that DEX markedly attenuated CLP-stimulated augment of lung inflammatory cells infiltration, along with significantly mitigated MPO activity. Besides, DEX obviously reduced lung wet/dry weight ratio and the levels of HMGB1 and RAGE in BALF and lung tissue. Moreover, DEX post-treatment apparently attenuated the histopathological lung injury compared with CLP model group. Furthermore, western blot analysis revealed that DEX efficiently restrained the activation of IκB-α, NF-κB p65, and MAPK. CONCLUSION:Our studies demonstrated that DEX attenuates the aggravation of sepsis-stimulated ALI via down regulation of RAGE pathway, which has a potential value in the clinical therapy.
journal_name
Am J Transl Resjournal_title
American journal of translational researchauthors
Hu H,Shi D,Hu C,Yuan X,Zhang J,Sun Hsubject
Has Abstractpub_date
2017-12-15 00:00:00pages
5245-5258issue
12issn
1943-8141journal_volume
9pub_type
杂志文章abstract::The exact roles of copy number alteration (CNA) in initiation, progression and immunotherapy of breast cancer and the genomic alterations behind progression from ductal carcinoma in situ (DCIS) to invasive carcinoma remain unknown. Quantitative multi-gene fluorescence in situ hybridization (QM-FISH) opens a possibilit...
journal_title:American journal of translational research
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journal_title:American journal of translational research
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journal_title:American journal of translational research
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journal_title:American journal of translational research
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journal_title:American journal of translational research
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journal_title:American journal of translational research
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更新日期:2017-09-15 00:00:00
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journal_title:American journal of translational research
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更新日期:2019-08-15 00:00:00
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journal_title:American journal of translational research
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journal_title:American journal of translational research
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journal_title:American journal of translational research
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