JAHA:伴有和不伴有心衰的2型糖尿病患者肌肉交感神经活动对达格列净的反应不同

2021-11-02 MedSci原创 MedSci原创

达格列净能显著降低2型糖尿病患者的MSNA水平,无论其降血糖作用如何。此外,与非HF患者相比,HF患者MSNA的降低更为显著。

钠-葡萄糖协同转运蛋白2抑制剂可改善伴有和不伴有心力衰竭(HF)的糖尿病患者血管结局。然而,它们对交感神经活动(SNA)的影响尚未明确。

近日,心血管疾病领域权威杂志JAHA上发表了一篇研究文章,该研究的目的是评估钠-葡萄糖协同转运蛋白2抑制剂对SNA的影响,并比较SNA对伴有和不伴有HF的2型糖尿病患者服用钠-葡萄糖协同转运蛋白2抑制剂治疗的反应。

该研究纳入了18名2型糖尿病患者,10名HF(65.4±3.68岁)和8名无HF(63.3±3.62岁)。在给予达格列净(5 mg/天)之前和之后12周记录了受试者肌肉的SNA(MSNA)、心率和血压数据。同时计算了交感神经和心脏迷走神经压力反射敏感性。

与非HF患者相比,HF患者的脑钠肽水平在基线时显著增加,而MSNA、血压和血红蛋白A1c在两组之间没有显著差异。在给予达格列净治疗后,两组之间的空腹血糖和稳态模型评估的胰岛素抵抗均未发生明显变化。此外,两组的MSNA均显著下降。然而,HF患者MSNA的降低程度显著高于非HF患者(-20.2±3.46 vs. -9.38±3.65次爆发/100次心跳;P=0.049),这与脑钠肽水平减少是一致。

由此可见,达格列净能显著降低2型糖尿病患者的MSNA水平,无论其降血糖作用如何。此外,与非HF患者相比,HF患者MSNA的降低更为显著。这些结果表明,钠-葡萄糖协同转运蛋白2抑制剂的心脏保护作用可能部分归因于SNA的改善。

原始出处:

Takuto Hamaoka.et al.Different Responses of Muscle Sympathetic Nerve Activity to Dapagliflozin Between Patients With Type 2 Diabetes With and Without Heart Failure.JAHA.2021.https://www.ahajournals.org/doi/full/10.1161/JAHA.121.022637

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    2021-11-04 zhaohui6731
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    2021-11-02 ms1000001127428570

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