Angiotensin II type 1 receptor blockers favorably affect renal angiotensin II and MAS receptor expression in patients with diabetic nephropathy.

IF 2.1 4区医学 Q3 PERIPHERAL VASCULAR DISEASE Journal of the Renin-Angiotensin-Aldosterone System Pub Date : 2020-04-01 DOI:10.1177/1470320320919607

Ye-Ping Ma, Yue Yang, Shi-Min Jiang, Lin Liu, Zheng Zhang, Yi-Ning Wang, Gu-Ming Zou, Wen-Ge Li

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引用次数: 3

Abstract

Introduction: The aims of this study were to assess the renal expression of angiotensin II type 1 receptor (AT1R), angiotensin II type 2 receptor (AT2R), and MAS receptor in human type 2 diabetic nephropathy (DN).

Materials and methods: In total, 115 patients diagnosed with DN by renal biopsy were enrolled in this study. The protein expression levels of the AT1R, AT2R, and MAS receptors were assessed by immunohistochemistry.

Results: The protein expression levels of AT1R, AT2R, and MAS receptor in the renal biopsy tissue were correlated with the pathologic classification of DN. Tubulointerstitial AT1R expression in patients of class IIb was significantly stronger than control samples (p < 0.05). Expression of AT2R and MAS receptors were highest with class IIb DN patients. When DN patients were treated with AT1R blocker (ARB), the expression of AT1R was downregulated (p < 0.05), and the MAS receptor was upregulated in tubular interstitial (p < 0.05).

Conclusions: Our results directly observed that renal expression levels of AT1R increase during the early stages of DN, ARB reducing AT1R while increasing MAS receptor. Therefore, ARB should be used as soon as possible in patients with DN.

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血管紧张素II型1受体阻滞剂有利于影响糖尿病肾病患者肾血管紧张素II和MAS受体的表达。

简介:本研究的目的是评估血管紧张素II型1受体(AT1R)、血管紧张素II型2受体(AT2R)和MAS受体在人2型糖尿病肾病(DN)中的肾脏表达。材料与方法:本研究共纳入115例经肾活检诊断为DN的患者。免疫组织化学检测AT1R、AT2R和MAS受体蛋白表达水平。结果:肾活检组织中AT1R、AT2R、MAS受体蛋白表达水平与DN病理分型相关。IIb类患者的管间质AT1R表达明显强于对照组(p < 0.05)。AT2R和MAS受体在IIb型DN患者中表达最高。DN患者在接受AT1R阻滞剂(ARB)治疗时，AT1R表达下调(p < 0.05)，肾小管间质MAS受体表达上调(p < 0.05)。结论:我们的研究结果直接观察到肾脏AT1R表达水平在DN早期升高，ARB降低AT1R而增加MAS受体。因此，DN患者应尽早使用ARB。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of the Renin-Angiotensin-Aldosterone System 医学-外周血管病

CiteScore

6.20

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： JRAAS is a peer-reviewed, open access journal, serving as a resource for biomedical professionals, primarily with an active interest in the renin-angiotensin-aldosterone system in humans and other mammals. It publishes original research and reviews on the normal and abnormal function of this system and its pharmacology and therapeutics, mostly in a cardiovascular context but including research in all areas where this system is present, including the brain, lungs and gastro-intestinal tract.