APOE4,年龄和性别调节由急性间歇性超性缺氧引起的呼吸系统可塑性
Jayakrishnan Nair1,2, Joseph F Welch1,3, Alexandria B Marciante1
1Breathing Research and Therapeutics Center, Department of Physical Therapy, University of Florida, Gainesville, 32603, USA.
Function (Oxford, England)
|August 14, 2023
概括
个体因素,如APOE遗传学,性别和年龄,显著影响对急性间歇性脑膜缺氧 (AIHH) 治疗的反应. 了解这些决定因素是优化AIHHHH的关键.
科学领域:
- 神经科学是一个神经科学.
- 呼吸系统生理学 呼吸系统生理学
- 遗传学 遗传学 是一个
背景情况:
- 急性间歇性缺氧 (AIH) 在脊髓损伤和神经退行性疾病中显示出运动恢复的潜力.
- 人类AIH试验显示患者反应的显著变化.
- 优化的AIH协议,如急性间歇性大头膜缺氧 (AIHH),旨在标准化和改善治疗结果.
研究的目的:
- 确定个体因素,包括遗传,年龄和性别,这些因素会影响健康成年人对优化AIHH协议的反应程度.
- 研究特定遗传多态性 (SNP) 在与AIH诱导的可塑性相关的基因中的作用.
- 分析年龄和性别对AIHH诱导的呼吸机运动可塑性的影响.
主要方法:
- 17名健康成年人接受了AIHH协议 (15,1分钟的9.5%O2和5%CO2发作).
- 测量包括隔膜电机唤起潜力 (MEP) 幅度和吸入口腔闭塞压力 (P0.1).
- 基因分析的重点是BDNF,HTR2A,TPH2,MAOA,NTRK2和APOE等基因中的SNP. 用动物模型 (人性化的ApoE大鼠) 来测试因果关系.
主要成果:
- 与其他基因型相比,具有APOE4基因型的个体显示出AIHH诱导的隔膜MEP振幅增强减少.
- 男人表现出更大的膜MEP增强比女性,无论年龄.
- 年龄与P0.1的变化相反相关,这表明老年人反应能力降低.
- 与对照对象相比,AIHH诱导的动力可塑性在人性化的ApoE4大鼠中明显较低.
结论:
- 在健康成年人中,APOE基因型,性别和年龄是AIHH诱导的呼吸机运动可塑性的关键生物学决定因素.
- 这些发现强调了个性化方法在AIHH治疗中的重要性.
- 了解这些个别因素可以帮助预测和优化患者对AIHH的反应,以改善运动恢复.
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