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Exp Clin Endocrinol Diabetes 2021; 129(10): 729-739
DOI: 10.1055/a-0998-7985
Article

Luteolin Attenuates Diabetic Nephropathy through Suppressing Inflammatory Response and Oxidative Stress by Inhibiting STAT3 Pathway

Miaoyuan Zhang
2   Rehabilitation Department, The Second Xiangya Hospital, Central South University, Changsha, Hunan, PR China
,
Liyu He
1   Nephrology Department, The Second Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification in Hunan, Changsha, Hunan, PR China
,
Jingsong Liu
3   Department of Nephrology, Chinese Medicine and Western Medicine Hospital Affiliated to Hunan University of Chinese Medicine, Changsha, PR China
,
Lin Zhou
1   Nephrology Department, The Second Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification in Hunan, Changsha, Hunan, PR China
› Author Affiliations Acknowledgements: This study was funded by research grants (81870500, 81770714) from the National Natural Science Foundation of China.
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Abstract

Background Diabetic nephropathy (DN) is the leading cause of end-stage renal disease (ESRD). DN has many pathological changes, but tubular injury is considered to be a crucial pathological feature and plays a key role in the progression of DN. Accumulating studies have confirmed that Luteolin (3,4,5,7-tetrahydroxyflavone, Lut) possesses anti-inflammatory and antioxidant activities, which may play a role in kidney protection in DN.

Objectives This paper described the effects of Lut on appropriated tubular injury in the kidneys of db/db mice and searched the possible mechanisms underlying the kidney protection effect in DN.

Methods Twelve-week-old male C57BL/6 J db/db and C57BL/6 J db/m mice were used for the animal experiments. They were organized into the following five groups for the animal experiments: a db/m group (control, n=6); a db/db group(n=8) ; a db/db group receiving Lut (10 mg/kg/day, n=8)treatment by oral gavage; a db/db group receiving stattic (a selective STAT3 inhibitor,50 mg/Kg/day, n=8) treatment by oral gavage and a db/db group receiving both stattic and Lut treatment by oral gavage.

Results In this study, we found that Lut might ameliorate glomerular sclerosis and interstitial fibrosis in DN mouse models through inhibiting the inflammatory response and oxidative stress. And it might play its biological function mainly through repressing the STAT3 activation.

Conclusions Lut attenuates DN mainly via suppression of inflammatory response and oxidative response. STAT3 pathway is the potential target, which ultimately reduces renal fibrosis and delays the progress of DN.

Key words

luteolin - diabetic nephropathy - inflammation - STAT3


Publication History

Received: 07 April 2019
Received: 03 August 2019

Accepted: 16 August 2019

Article published online:
02 January 2020

© 2020. Thieme. All rights reserved.

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany

 

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