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find Keyword "遗传变异" 2 results
  • 白细胞介素-1β与外伤后癫痫发生的联系——一个遗传学和生物标记物的队列研究

    外伤后癫痫(Post-traumatic epilepsy, PTE)是创伤性脑损伤(Traumatic brain injury, TBI)后的一个主要的并发症, 但遗传变异在调节PTE发生中的作用尚不清楚。假设TBI诱导的炎症可能是导致癫痫发生的原因, 对白细胞介素-1β(Interleukin-1β, IL-1β)基因的遗传变异情况, 脑脊液和血清中IL-1β水平和IL-1β的脑脊液/血清比值能否预测TBI后PTE的发生进行了评估。共调查了256例中度至重度TBI后患PTE的成年白种人。对IL-1β标记和功能性单核苷酸多态性(SNPs)进行基因分型。对遗传变异性和PTE的发生进行评估。在调查患者中抽取一部分患者(n=59)在其外伤后1周内收集血清和脑脊液的IL-1β, 并评估它们与IL-1β基因变异及PTE的关系。临时配对IL-1β的脑脊液/血清比值以反映血清IL-1β水平对脑脊液IL-1β的影响。多变量分析显示随着时间推移, 高脑脊液/血清IL-1β比值与PTE风险增加有关(P=0.008)。rs1143634的多变量分析揭示了CT基因型与PTE风险增加有关(P=0.005)。CT基因型组其血清IL-1β水平较低(P=0.014), 脑脊液/血清IL-1β比值较高(P=0.093)。这是第一个揭示PTE风险中的IL-1β基因变异, 及TBI后IL-1β基因变异与血清IL-1β水平的关系和IL-1β比值与PTE风险的关系。根据这些发现, 提出基因和IL-1β比值与PTE的相关性可能归因于TBI恢复期的血脑屏障完整性的生物变异性包括。为进一步的研究提供了理论依据, 验证遗传变异性对TBI后IL-1β产生的影响, 评估造成脑脊液/血清IL-1β比值与PTE相关性的基因介导的信号传导机制, 及评估减少PTE的靶向IL-1β治疗。

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  • Therapeutic Targets of Pancreatic Cancer

    ObjectiveTo summarize the therapeutic targets of pancreatic cancer (PC). MethodsThe related literatures about the therapeutic targets of PC were reviewed. ResultsPC was one of the most challenging tumor in worldwide, and was characterized as a highly aggressive disease with poor overall prognosis and a high mortality rate. The hallmark of PC was its poor response to radio-and chemo-therapy. Current chemotherapeutic regimens could not provide substantial survival benefit with a clear increase in overall survival. Recently, several new approaches which could significantly improve the clinical outcome of PC had been described, involving signal-transduction pathways, immune response, stroma reaction, and epigenetic changes. ConclusionsMany therapeutic targets are involved in the treatment of PC. As current therapies failed to significantly improve the progression and the survival of PC, new therapeutic approaches and clinical studies are strongly required.

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