JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
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Combined Adipose-Derived Mesenchymal Stem Cells and Low-Energy Extracorporeal Shock Wave Therapy Protect the Brain From Brain Death-Induced Injury in Rat.

This study tested the hypothesis that combined adipose-derived mesenchymal stem cell (ADMSC) and low-energy extracorporeal shock wave (ECSW) therapy could protect brain from brain death (BD)-induced injury. Adult male Sprague Dawley rats were categorized into group 1 (sham control), group 2 (BD), group 3 (BD + ECSW [0.15 mJ/mm2/300 impulses] applied to the skull surface 3 hours after BD induction), group 4 (BD + ADMSC [1.2 × 106 cell] by intravenous injection 3 hours after BD induction) and group 5 (BD + ECSW + ADMSC). By 6 hours after BD induction, circulating/spleen levels of immune cells (CD3/CD4+, CD8/CD4+, Treg+) and circulating levels of inflammatory cells (MPO/Ly6G/CD11a/b) and soluble mediators (TNF-α/IL-6) were lowest in group 1 and significantly progressively reduced from groups 2 to 5 (all p < 0.0001). Brain protein expressions of inflammatory (TNF-α/NF-κB/MMP-9/IL-1β), apoptotic (caspase-3/PARP/mitochondrial-BAX), oxidative stress/DNA-damage (NOX-1/NOX-2/oxidized protein/γ-H2AX) biomarkers exhibited an identical pattern, whereas anti-oxidant (SIRT1/SIRT3) and mitochondrial-integrity (mitochondrial-cytochrome-C) biomarkers exhibited an opposite pattern to inflammatory biomarkers among the 5 groups (all p < 0.0001). The cellular expressions of inflammatory/brain-edema (F4/80/CD14+/GFAP/AQP4) biomarkers exhibited an identical pattern to inflammation among the 5 groups (all p < 0.0001). In conclusion, ECSW-ADMSC therapy is superior to either alone for attenuating brain from BD-induced damage.

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