Clinica Chimica Acta:预测老年人卧床休息后肌肉组织质量损失的血清生物标记:一项探索性研究

2020-07-19 MedSci原创 MedSci原创

在卧床休息期间,肌肉组织质量(LM)的损失会导致老年人的长期功能下降。通过识别血液生物标记来预测住院患者失去LM的风险,可以及时进行干预。

在卧床休息期间,肌肉组织质量(LM)的损失会导致老年人的长期功能下降。通过识别血液生物标记来预测住院患者失去LM的风险,可以及时进行干预。

本研究对19名健康受试者(年龄60-76岁,男4名,女15名,卧床休息10天),测量卧床前和卧床后的LM。从所有可评估受试者(n = 18)的床前休息禁食血清样本中获得187个生物标记物,使用多路免疫分析阵列进行分析并合并。用决策树分析识别预测卧床休息期间LM损失的卧床休息前标记物。

由于低于测定的检测限度,研究人员排除63个标记物。研究发现,一对标记物,金属蛋白酶-1组织抑制剂(TIMP1)和肌腱蛋白C (TNC)与卧床休息期间总LM百分比变化相关[R2 = 0.71,所有受试者;R2 = 0.76,女性]。床前休息TIMP1≥141 ng/ml的受试者在床前休息时总LM损失最大,而床前休息TIMP1 < 141和TNC≥461 ng/ml的受试者在床前休息时总LM维持在正常水平。研究发现,另一组标记集与卧床期间腿部LM损失的百分比变化相关:基质金属蛋白酶-3 (MMP3)和载脂蛋白A2 (APOA2) [R2 = 0.59,女性]。床前休息MMP3 < 6.93 ng/ml的女性在床前休息时腿部LM损失最大。而卧床前休息MMP3≥6.93、ApoA2 < 276 ng/ml的女性在卧床休息结束时保持了腿部肌肉组织质量。

不研究结果表明,与肌肉细胞外基质相关的血液生物标记可以预测延长卧床期间LM损失的可能性。

原始出处:

Susan H.GawelGerard J.DavisSerum biomarkers that predict lean mass loss over bed rest in older adults: An exploratory study

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    2021-02-08 windight
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    2020-07-22 一只大大的猪

    0

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