Aerosol inhalation of a hydrogen-rich solution restored septic renal function
| Autor: | Chenfang Luo, Ziqing Hei, Weifeng Yao, Shangrong Li, Xue Han, Chaojin Chen, Shan Wu, Anshun Guo, Haobo Li |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Aging
Macrophage polarization Drug Evaluation Preclinical Renal function macrophage Pharmacology urologic and male genital diseases Kidney Sepsis sepsis chemistry.chemical_compound Mice Administration Inhalation medicine Renal fibrosis Animals Creatinine inhalation Nephrosclerosis Inhalation business.industry Macrophages Acute kidney injury Cell Biology Acute Kidney Injury medicine.disease M2 Macrophage Mice Inbred C57BL Oxygen RAW 264.7 Cells chemistry hydrogen-rich solution Cytokines business Research Paper Hydrogen |
| Zdroj: | Aging (Albany NY) |
| ISSN: | 1945-4589 |
| Popis: | Sepsis-related acute kidney injury (AKI) is known to be caused by inflammation. We explored the renal protective effects of aerosol inhalation of a hydrogen-rich solution (HRS; hydrogen gas dissolved to saturation in saline) in a mouse model of septic AKI. Septic AKI was induced through 18 hours of cecal ligation and puncture. AKI occurred during the early stage of sepsis, as evidenced by increased blood urea nitrogen and serum creatinine levels, pathological changes, renal fibrosis and renal tubular epithelial cell apoptosis, accompanied by macrophage infiltration and M1 macrophage-associated pro-inflammatory cytokine (Il-6 and Tnf-α) generation in renal tissues. Aerosol inhalation of the HRS increased anti-inflammatory cytokine (Il-4 and Il-13) mRNA levels in renal tissues and promoted macrophage polarization to the M2 type, which generated additional anti-inflammatory cytokines (Il-10 and Tgf-β). Ultimately, aerosol inhalation of HRS protected the kidneys and increased survival among septic mice. HRS was confirmed to promote M2 macrophage polarization in lipopolysaccharide-stimulated RAW 264.7 cells. The TGF-β1 receptor inhibitor SB-431542 partly reversed the effects of HRS on renal function, fibrosis, tubular epithelial cell apoptosis and senescence in mice. Thus, HRS aerosol inhalation appears highly useful for renal protection and inflammation reduction in septic AKI. |
| Databáze: | OpenAIRE |
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