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Infection01:20

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When a pathogen enters the body and reproduces, it can cause an infection, damage body cells, and cause illness symptoms that eventually lead to disease. Therefore, its prevention requires breaking the chain of infection.
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The pathophysiology of urinary tract infections (UTIs) encompasses several progressive stages, beginning with bacterial colonization and culminating in potential systemic complications if untreated. UTIs are primarily initiated by bacteria, such as Escherichia coli, which often originate from the gastrointestinal tract and migrate to the urinary system through the periurethral area. This migration can occur via several routes, including improper hygiene practices, sexual activity, or...
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血小板聚合升高与阿尔茨海默病 (AD) 病理标志物如p-tau181和神经退行标志物NfL在外周动脉疾病 (PAD) 患者中的增加有关. 需要进一步的研究,以在更大的队列中证实这些发现.

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科学领域:

  • 神经学 神经学
  • 心血管医学 心血管医学
  • 生物化学 生物化学

背景情况:

  • 心血管风险因素对痴呆症有显著的贡献,但潜在的生物机制需要澄清.
  • 血小板聚合升高是痴呆症的已知危险因素,在血管负担高的人群中,并发症复杂化.
  • 血小板活动和心血管事件 (PACE) 研究调查了周围动脉疾病 (PAD) 患者的血小板活动和阿尔茨海默病 (AD) 生物标志物之间的联系.

研究的目的:

  • 澄清将心血管风险因素与痴呆症联系起来的生物媒介.
  • 检查PAD患者血小板聚合和AD生物标志物之间的关系.
  • 调查血小板活动和AD病理和神经退行症标志物之间的潜在关联.

主要方法:

  • 使用光传导聚合计 (LTA) 测量了血小板聚合.
  • 使用SIMOA.181量化化 (p-tau181),总,神经丝光 (NfL) 和状纤维酸蛋白 (GFAP) 的血清度.
  • 使用量子回归模型来评估关联,并对单变量,LASSO选择的共变量以及人口/治疗因素进行调整.

主要成果:

  • 在101名PAD患者中,高血小板聚合 (与ADP和上腺素) 与增加的p-tau181和NfL水平相关.
  • 在血小板聚合和总tau或GFAP水平之间没有发现显著的关联.
  • 研究队伍的平均年龄为70岁,大多数是男性,患有多血管疾病,并接受血小板修饰治疗.

结论:

  • 血小板聚合与没有痴呆症的PAD患者的AD病理 (p-tau181) 和神经退行症 (NfL) 标志物有关.
  • 这些发现表明,血小板聚合在介导AD病理和神经炎症方面可能发挥作用.
  • 需要进行更大的队列研究来验证这些关联并探索潜在的机制.