屏住呼吸作为一个刺激来评估利用近红外光谱成像来评估外周氧化流
Kevin Leiva1, Isabella Gonzalez1, Juan Murillo1
1Optical Imaging Laboratory, Department of Biomedical Engineering, Florida International University, Miami, FL 33174, USA.
Bioengineering (Basel, Switzerland)
|January 8, 2025
概括
屏住呼吸 (BH) 可以改变血液流动和组织中的氧化. 这项研究使用BH评估糖尿病足 (DFU) 中的外周血管反应,发现它是DFU评估的可行方法.
科学领域:
- 生理学 生理学 生理学
- 医疗成像医学成像
- 血管生物学 血管生物学
背景情况:
- 哺乳动物的屏息 (BH) 诱导了外周血管收缩,影响了血液和氧气的流动.
- 糖尿病足 (DFU) 与周围循环受损有关.
- 了解DFU中的血管反应对于有效治疗至关重要.
研究的目的:
- 用BH范式研究外周组织氧化变化.
- 评估BH作为控制和DFU受试者的刺激剂的实用性.
- 评估BH在DFU中评估血管功能的潜力.
主要方法:
- 试验对象 (对照组和DFU) 接受了喘息模式,包括20秒的BH.
- 无接触的时空近红外光谱学 (NIRS) 用于成像.
- 在伤口和正常背景组织中测量了氧化的流量变化.
主要成果:
- 在BH期间的氧化流变化在不同的肤色中是一致的.
- 在DFU伤口和正常组织之间观察到氧化变化的显著差异.
- 周围血管表现出在BH期间对氧化需求的可测量反应.
结论:
- 喘息模式有效地诱导了周围组织氧化变化.
- 在BH期间的NIRS成像可以在DFU受试者中区分血管反应.
- BH是一种有前途的非接触式方法,用于评估DFU中的外周血管功能.
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