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Cerium oxide nanoparticle treatment ameliorates peritonitis-induced diaphragm dysfunction
Shinichi Asano1, Ravikumar Arvapalli2, Nandini D P K Manne1
1Center for Diagnostic Nanosystems, Marshall University, Huntington, WV, USA ; Department of Pharmacology, Pharmaceutical Sciences and Research, School of Pharmacy, Marshall University, Huntington, WV, USA.
International Journal of Nanomedicine
|October 23, 2015
Summary
Cerium oxide nanoparticles may improve diaphragm function in septic rats by reducing inflammation and cellular damage. This study suggests potential therapeutic benefits for sepsis-induced diaphragm dysfunction.
Area of Science:
- Biomedical Engineering
- Nanomedicine
- Physiology
Background:
- Sepsis-induced inflammation can lead to diaphragm dysfunction, negatively impacting patient outcomes.
- Cerium oxide (CeO2) nanoparticles possess anti-inflammatory and antioxidative properties, suggesting therapeutic potential.
Purpose of the Study:
- To investigate the efficacy of CeO2 nanoparticles in mitigating sepsis-associated diaphragm dysfunction in a rat model.
Main Methods:
- Sprague Dawley rats were subjected to sepsis induction via cecal ligation and puncture.
- Groups included sham control, CeO2 treatment only, sepsis, and sepsis with CeO2 treatment.
- Diaphragmatic contractile function, protein signaling, proteolysis, and inflammation markers were assessed.
Main Results:
- CeO2 nanoparticle treatment significantly improved diaphragmatic contractile function in septic rats.
- Treatment normalized protein translation and reduced proteolysis and inflammatory signaling (Stat3, iNOS).
- Histological analysis revealed diminished sarcolemma damage and inflammatory cell infiltration.
Conclusions:
- CeO2 nanoparticles demonstrate potential in improving diaphragmatic function during sepsis.
- These findings support the therapeutic application of CeO2 nanoparticles for sepsis-related complications.
