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Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
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在获得的血友病A中血小板功能异常.

Raffaella Rossio1, Anna Lecchi1, Silvia La Marca1

  • 1Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, Milan, Italy.

Research and practice in thrombosis and haemostasis
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概括

获得血友病A (AHA) 患者通常具有异常的血小板功能,导致出血. 导致缓解的治疗改善了血小板功能,这表明在AHA中血小板功能和出血严重程度之间存在联系.

关键词:
获得的血友病A发生出血,出血.作为第八因子抑制剂.不确定的意义上的单克隆性胃病变.血小板功能障碍 血小板功能障碍

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科学领域:

  • 血液学 血液学 血液学
  • 内部医学 内部医学
  • 临床研究 临床研究

背景情况:

  • 获得性血友病A (AHA) 呈现出明显的出血模式,包括软组织血瘤和粘膜皮肤出血,与遗传性血友病不同.
  • 血小板功能障碍是可以获得的,通常与药物,医疗条件或自身免疫性疾病有关.

研究的目的:

  • 在被诊断为获得性血友病A (AHA) 的患者中研究血小板功能,这种病因于对 VIII 凝血因子的自身抗体引起.
  • 评估AHA患者血小板功能异常和出血倾向之间的关系.

主要方法:

  • 血小板功能在富含血小板的血中被评估,使用国际血栓与血液静止学会的既定建议.
  • 测量了腺核酸 (ADP,ATP),血清素和β-血栓球蛋白的血小板内水平,以及血小板激活的血标志物 (CD40L,可溶性P-选择素).

主要成果:

  • 所有11名AHA患者都表现出血小板聚合和分泌的减少.
  • 四名患有单克隆性骨病变的患者显示聚合功能受损和血小板颗粒含量异常,这表明同时存在的三角洲储存池疾病.
  • 血小板内ADP和血清素水平在AHA缓解后得到改善.

结论:

  • 获得的血小板功能异常在AHA患者中很常见.
  • 这些血小板缺陷可能有助于在AHA中观察到的显著出血倾向.
  • 改善AHA缓解与增强的血小板功能相关.