J Endod:老龄化和颈动脉硬化对牙髓血管流量振荡的影响

2020-02-14 lishiting MedSci原创

牙髓组织的增龄性变化以及作为供血动脉的颈动脉发生粥样硬化会影响牙髓组织循环系统的功能。这篇研究的目的是通过激光多普勒血流测定仪进行多重分形分析评估增龄(生理过程)和颈动脉杈发生粥样硬化(病理过程)对牙髓组织微循环系统的影响。

牙髓组织的增龄性变化以及作为供血动脉的颈动脉发生粥样硬化会影响牙髓组织循环系统的功能。这篇研究的目的是通过激光多普勒血流测定仪进行多重分形分析评估增龄(生理过程)和颈动脉杈发生粥样硬化(病理过程)对牙髓组织微循环系统的影响。研究选取了10名受试者分为3组:年轻组(healthy subjects, 20-25 years), 中年组(healthy subjects, 50-60 years)和临床组(颈动脉杈发生粥样硬化的受试者, 50-60 years)。通过激光多普勒血流测定仪的多重分形分析检测牙髓血流量(PBF)信号以评估信号的Hölder exponents。获取PBF水平、平均值和Hölder exponents范围。结果显示,与中年组和临床组相比,青年组的PBF水平显著增加,并且中年组和临床组之间未见明显差异。中年组和临床组的Hölder exponents范围比青年组更窄,而临床组又窄于中年组。青年组Hölder exponents的平均值明显高于中年组和临床组,而在中年组和临床组之间未见显著性差异。结论:多重分形的PBF结果表明,增龄进程和颈动脉粥样硬化会影响PBF振

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    2020-03-24 jxrzshh
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    2020-02-14 1209e435m98(暂无昵称)

    学习了,谢谢分享

    0

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