Abstract
Objective
To test whether Shenfu Injection (参附注射液, SFI) might attenuate the impact of cerebral energy dysfunction after resuscitation in a pig model of cardiac arrest (CA).
Methods
Thirty-four Wuzhishan miniature inbred pigs were randomly divided into three groups: the SFI group (n=12), the saline group (SA group, n=12), and the sham-operated group (sham group, n=10). Following successful return of spontaneous circulation (ROSC) from 8-min untreated ventricular fibrillation, animals received a continuous infusion of either SFI (0.2 mL/min) or saline for 6 h. Cerebral performance category score was evaluated at 24 and 48 h after ROSC, followed by positron emission tomography and computed tomography scans of cerebral glucose uptake. Surviving pigs were euthanized 48 h after ROSC, and the brains were removed for detecting mitochondrial function.
Results
Compared with the SA group, SFI treatment produced a better neurologic outcome 48 h after ROSC (P<0.05). However, there was no significant difference of survival rate between the SA and SFI groups (83.3% vs. 81.8%, P>0.05). After ROSC, the SA group showed a decrease in the maximum standardized uptake value of different regions in the brain tissue, where SFI treatment can ameliorate these decreases (P<0.01 or P<0.05). Improved mitochondrial respiratory properties and higher mitochondrial membrane potential were also found following SFI treatment compared with the SA group at 48 h after ROSC (P<0.05 or P<0.01).
Conclusion
SFI treatment after resuscitation has significant neuroprotective effects against disruption of cerebral energy metabolism from CA by improving glucose uptake and by normalizing mitochondrial function.
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Supported by the Beijing Natural Science Foundation (No. 7132092) and Beijing Scientific Research Project for Outstanding Doctoral Thesis Guidance Teacher (No. 20121002501)
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Zhang, Y., Li, Cs., Wu, Cj. et al. Neuroprotective effect of Shenfu Injection (参附注射液) following cardiac arrest in pig correlates with improved mitochondrial function and cerebral glucose uptake. Chin. J. Integr. Med. 20, 835–843 (2014). https://doi.org/10.1007/s11655-014-1890-7
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DOI: https://doi.org/10.1007/s11655-014-1890-7