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

Hemoglobin-based oxygen carrier attenuates cerebral damage by improving tissue oxygen preload in a dog model of cardiopulmonary bypass
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基于血红蛋白的氧载体通过改善体外循环狗模型中的组织氧预负荷来减轻脑损伤

DOI:
10.3109/21691401.2014.916716
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发表时间:
2015-03
期刊:
Artif Cells Nanomed Biotechnol
影响因子:
--
通讯作者:
C Yang
C Yang
中科院分区:
其他
文献类型:
--
作者:
Q Yang;Tao Li;J Liu;C Yang

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摘要 为了研究血红蛋白氧载体(HBOC)是否可以减轻体外循环(CPB)引起的脑损伤。雄性成年比格犬被随机分为假手术组、对照组和 HBOC 组。 CPB模型建立后,心脏停搏2 h,再灌注2 h。 HBOC 改善脑内 O2 张力,减少脑损伤生物标志物的释放,包括脑脊液和血清中的神经元特异性烯醇化酶和 S100β。此外,HBOC 减弱了 CPB 后肿瘤坏死因子-α 和白介素-1β 的释放。因此,我们的研究结果表明,HBOC 可以减少 CPB 后的脑损伤,这可能与组织 O2 前负荷的改善有关。
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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