ISC2019:代谢综合征增加继发性血栓形成风险

2019-02-10 国际循环编辑部 国际循环

众所周知,代谢综合征与多种心血管疾病密切相关。那么,代谢综合征与继发性血栓形成有怎样的关系?代谢综合征可通过哪些途径或机制增加缺血性卒中后继发性血栓形成风险?2019年2月7日,美国卒中协会2019年年会上Jialing Liu教授对相关研究进行系统回顾,从代谢综合征对大脑血流及髓样分化的影响两大方面向参会者就这一问题进行详细解析。

编者按:众所周知,代谢综合征与多种血管疾病密切相关。那么,代谢综合征与继发性血栓形成有怎样的关系?代谢综合征可通过哪些途径或机制增加缺血性卒中后继发性血栓形成风险?2019年2月7日,美国卒中协会2019年年会上Jialing Liu教授对相关研究进行系统回顾,从代谢综合征对大脑血流及髓样分化的影响两大方面向参会者就这一问题进行详细解析。

代谢综合征可定义为以多种代谢性危险因素聚集为特征的临床症候群,如肥胖、高血糖、高血压和血脂异常。相关证据表明,代谢综合征显著增加糖尿病和心脑血管疾病发病率,并且促进患者心脑血管疾病进展,以及增加相关疾病死亡率等。

急性卒中合并代谢障碍患者的卒中类型以缺血性卒中较为多见,同时,代谢综合征也是缺血性卒中的重要独立危险因素,针对性地对其进行干预是预防和治疗缺血性卒中的重要措施。实际上,代谢综合征与卒中的关系不仅如此其还可增加卒中后继发性血栓形成风险。首先,代谢综合征可减少缺血性卒中后软膜侧支血流,导致软膜侧支血流障碍;可影响卒中后穿支动脉血流的恢复。其次,研究发现,代谢综合征还可促进髓样分化。具体来说,其可增加血液中的单核细胞数量并减少淋巴细胞数量。细胞水平的转录组分析更是发现,db/db小鼠中负责Ly6C+向Ly6C-单核细胞转化的转录因子表达受抑制。

进一步深入研究发现,代谢综合征或卒中可增加大脑的巨噬细胞及小胶质细胞。对血液及脑髓系细胞的轨迹推断分析显示,每种轨迹状态中的细胞类型均具有共性。但非卒中db/db小鼠中则呈现独特的细胞状态和转录组模式。另外,研究发现,代谢综合征还可改变血液的流变性。

综上可见,代谢综合征是卒中及其相关并发症防治中不容忽视的重要因素。临床实践中,医生有必要关注和重视代谢综合征的管理,尤其是对于卒中患者。

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    2019-11-15 feifers
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    2019-08-24 xzw113
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    2019-02-12 yankaienglish

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