Hemoglobin-based oxygen carrier attenuates cerebral damage by improving tissue oxygen preload in a dog model of cardiopulmonary bypass

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Abstract

In order to investigate whether hemoglobin-based oxygen carrier (HBOC) attenuates cardiopulmonary bypass (CPB)-induced cerebral damage. Male adult Beagle dogs were randomly divided into sham, control, and HBOC groups. After establishment of CPB model, hearts were arrested for 2 h and reperfused for 2 h. HBOC improved intracerebral O2 tensions and reduced the releases of biomarkers for cerebral damage, including neuron-specific enolase and S100β in both cerebrospinal fluid and serum. Moreover, HBOC attenuated the releases of tumor necrosis factor-α and interleukin-1β after CPB. Therefore, our findings suggest that HBOC could reduce cerebral damage after CPB, which was probably associated with improvement of tissue O2 preload.

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Li, Q., Li, S., Yang, Q., Li, T., Liu, J., & Yang, C. (2015). Hemoglobin-based oxygen carrier attenuates cerebral damage by improving tissue oxygen preload in a dog model of cardiopulmonary bypass. Artificial Cells, Nanomedicine and Biotechnology, 43(2), 87–92. https://doi.org/10.3109/21691401.2014.916716

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