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TLR4在原发性脑出血患者外周血中的动态变化及意义 被引量:3

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摘要 目的探讨原发性脑出血患者外周血中TLR4的水平变化对评估病情严重程度及预后的临床价值。方法选择50例原发性脑出血患者(研究组)与健康体检者50例(对照组),于起病2、24、72小时及7天检测外周血中TLR4水平,同时记录各时间点的NIHSS评分及脑出血量,对不同脑出血量及神经功能缺损程度的脑出血患者TLR4水平进行比较。并于发病后90天行改良mRS评分,采用Logistic回归分析TLR4的表达与预后的关系。结果研究组起病2、24、72小时及7天血清TLR4水平显著高于对照组,差异有显著性(t=-3.326,-7.554,-2.219,,-2.304;P<0.05)。其中研究组中各时间段比较,TLR4在起病2小时内迅速增高,24小时达最高峰,然后缓慢回落直至7天仍高于正常水平,24小时时段TLR4的表达高于其他时段,差异有显著性。不同出血量患者入院后2、24、72小时和7天各时间点TLR4水平随着出血量的增多表达量增高,差异有显著性。入院时根据美国国立卫生院卒中量表(NIHSS)评分对患者进行评分、分组,重度组患者外周血TLR4表达在入院后2、24、72小时和7天各时间点均高于中度组、轻度组患者,中度组患者外周血TLR4表达在各时间点均高于轻度组患者,差异有显著性。多因素Logistic回归模型结果表明,TLR4高表达(OR=2.52,95%CI:0.789~1.032)、脑出血量(OR=1.72,95%CI:1.21~3.19)、NIHSS评分(OR=0.78,95%CI:0.57~1.23)是原发性脑出血的独立危险因素。通过绘制脑出血患者24小时外周血中TLR4的ROC曲线,根据结果中各可能切点的灵敏度和特异度计算Youden指数,选择最大的截断点为41.45μg/L,曲线下面积为0.875,灵敏度93.1%,特异度70.6%。结论 TLR4参与了脑出血的病理生理过程,与脑出血量、神经功能损伤密切相关,可作为评估脑出血患者预后的参考指标之一。
出处 《中国临床医生杂志》 2018年第5期553-556,共4页 Chinese Journal For Clinicians
基金 海南省国际科技合作重点项目(GJXM201107)
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