Puerarin, a traditional Chinese medicine, exerts a powerful neuroprotective effect in cerebral ischemia/reperfusion injury, but its mechanism is unknown. Here, we established rat models of middle cerebral artery ische...Puerarin, a traditional Chinese medicine, exerts a powerful neuroprotective effect in cerebral ischemia/reperfusion injury, but its mechanism is unknown. Here, we established rat models of middle cerebral artery ischemia/reperfusion injury using the suture method. Puerarin （100 mg/kg） was administered intraperitoneally 30 minutes before middle cerebral artery occlusion and 8 hours after reperfusion. Twenty-four hours after reperfusion, we found that puerarin significantly improved neurological deficit, reduced infarct size and brain water content, and notably diminished the expression of Toll-like receptor-4, myeloid differentiation factor 88, nuclear factor kappa B and tumor necrosis factor-α in the ischemic region. These data indicate that puerarin exerts an anti-inflammatory protective effect on brain tissue with ischemia/reperfusion damage by downregulating the expression of multiple inflammatory factors.展开更多
目的总结93例华氏巨球蛋白血症（WM）患者的临床特征、MYD88L265P及CXCR4WHIM突变情况、治疗选择和生存预后。方法回顾性分析2000年1月至2016年8月在北京协和医院初诊的症状性WM患者的临床特征、国际预后指数评分（WPSS）和总体生存（O...目的总结93例华氏巨球蛋白血症（WM）患者的临床特征、MYD88L265P及CXCR4WHIM突变情况、治疗选择和生存预后。方法回顾性分析2000年1月至2016年8月在北京协和医院初诊的症状性WM患者的临床特征、国际预后指数评分（WPSS）和总体生存（OS）；其中34例患者检测了MYD88L265P和CXCR4WHIM突变。结果93例患者男女比例为2.44∶1，中位年龄64（33~85）岁。WPSS分层：低危组16例（17.2%），中危组44例（47.3%），高危组33例（35.5%）。中位随访44（1~201）个月，中位OS期为84个月。Cox多因素分析显示：WPSS危险分层（HR=2.342，95% CI 1.111~4.950，P=0.025）、继发淀粉样变性（HR=5.538，95% CI 1.958~15.662，P=0.001）以及新药治疗（HR=3.392，95% CI 1.531~7.513，P=0.003）均是影响患者OS的独立预后因素。34例患者中32例（94.1%）存在MYD88L265P突变，8例（23.5%）存在CXCR4WHIM突变。MYD88 L265PCXCR4WHIM突变组（7例）较MYD88 L265PCXCR4WT组（25例）患者的贫血更重、血小板计数更低、M蛋白水平更高、高黏滞症状更多见，差异有统计学意义（P值均〈0.05）。结论WM患者的预后较好，WPSS评分、是否继发淀粉样变性以及是否使用新药治疗是影响其预后的独立因素。WM患者的MYD88L265P突变率高，而CXCR4WHIM突变多与MYD88L265P突变伴发出现，其突变与一些临床特征相关。展开更多
基金supported by the Chinese Traditional Medical Science Foundation of Zhejiang Province in China,No.2010ZA072the Health Bureau Foundation of Zhejiang Province in China,No.2012ZDA023the Qianjiang Project of Zhejiang Science and Technology Bureau in China,No.2010 R10073
文摘Puerarin, a traditional Chinese medicine, exerts a powerful neuroprotective effect in cerebral ischemia/reperfusion injury, but its mechanism is unknown. Here, we established rat models of middle cerebral artery ischemia/reperfusion injury using the suture method. Puerarin （100 mg/kg） was administered intraperitoneally 30 minutes before middle cerebral artery occlusion and 8 hours after reperfusion. Twenty-four hours after reperfusion, we found that puerarin significantly improved neurological deficit, reduced infarct size and brain water content, and notably diminished the expression of Toll-like receptor-4, myeloid differentiation factor 88, nuclear factor kappa B and tumor necrosis factor-α in the ischemic region. These data indicate that puerarin exerts an anti-inflammatory protective effect on brain tissue with ischemia/reperfusion damage by downregulating the expression of multiple inflammatory factors.
文摘目的总结93例华氏巨球蛋白血症（WM）患者的临床特征、MYD88L265P及CXCR4WHIM突变情况、治疗选择和生存预后。方法回顾性分析2000年1月至2016年8月在北京协和医院初诊的症状性WM患者的临床特征、国际预后指数评分（WPSS）和总体生存（OS）；其中34例患者检测了MYD88L265P和CXCR4WHIM突变。结果93例患者男女比例为2.44∶1，中位年龄64（33~85）岁。WPSS分层：低危组16例（17.2%），中危组44例（47.3%），高危组33例（35.5%）。中位随访44（1~201）个月，中位OS期为84个月。Cox多因素分析显示：WPSS危险分层（HR=2.342，95% CI 1.111~4.950，P=0.025）、继发淀粉样变性（HR=5.538，95% CI 1.958~15.662，P=0.001）以及新药治疗（HR=3.392，95% CI 1.531~7.513，P=0.003）均是影响患者OS的独立预后因素。34例患者中32例（94.1%）存在MYD88L265P突变，8例（23.5%）存在CXCR4WHIM突变。MYD88 L265PCXCR4WHIM突变组（7例）较MYD88 L265PCXCR4WT组（25例）患者的贫血更重、血小板计数更低、M蛋白水平更高、高黏滞症状更多见，差异有统计学意义（P值均〈0.05）。结论WM患者的预后较好，WPSS评分、是否继发淀粉样变性以及是否使用新药治疗是影响其预后的独立因素。WM患者的MYD88L265P突变率高，而CXCR4WHIM突变多与MYD88L265P突变伴发出现，其突变与一些临床特征相关。
