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Apigenin alleviates diabetic endothelial dysfunction through activating AMPK/PI3K/Akt/eNOS and Nrf2/HO-1 signaling pathways
Miao, Lingchao1; Cheong, Meng Sam1; Zhou, Chunxiu1; Farag, Mohamed3; Cheang, Wai San1; Xiao, Jianbo2
2023-03
Source PublicationFood Frontiers
ISSN2643-8429
Volume4Issue:1Pages:420-431
Abstract

Apigenin (4′,5,7-trihydroxyflavone) is a natural flavone reported to present anti-diabetic and anti-oxidative bioactivities. The effect of apigenin to mitigate endothelial dysfunction in diabetes remains to be investigated. In the present study, the vaso-protective effect of apigenin as well as its underlying action mechanisms was investigated using in vitro- and in vivo-based assays. Aortas were detached from C57BL/6J mice for ex vivo treatment, and primary rat aortic endothelial cells (RAECs) were cultured and further stimulated using high glucose (HG) with or without apigenin. In-vivo diabetic model was established by feeding male C57BL/6J mice with a high-fat diet (60% kcal% fat) for a total of 14 weeks, whereas the treatment group was orally administered apigenin (25 mg/kg/day) during the last 4 weeks. Exposure to HG (30 mM, 48 h) impaired acetylcholine-induced endothelium-dependent relaxation (EDR) in mouse aortas and induced oxidative stress with the downregulation of adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK)/phosphatidyl inositol 3-kinase (PI3K)/protein kinase B (Akt)/endothelial nitric oxide synthase (eNOS) and nuclear factor erythroid 2-related factor 2 (Nrf2)/heme oxygenase 1 (HO-1) signaling pathways in aortas and RAECs. These impairments were reversed by apigenin treatments. However, the vaso-protective effects of apigenin were abolished by Compound C (AMPK inhibitor) and wortmannin (PI3K inhibitor). Chronic oral administration with apigenin ameliorated EDR and reduced oxidative stress in the aortas of high-fat diet (HFD)-induced obese and diabetic mice. In conclusion, this study revealed that apigenin improved endothelial function and suppressed oxidative stress in the vasculature in diabetes through the activation of AMPK/PI3K/Akt/eNOS and Nrf2/HO-1 pathways, suggesting its therapeutic potential as a natural dietary flavonoid against vascular diseases associated with diabetes.

KeywordApigenin Diabetes Mellitus Endothelial Dysfunction Nitric Oxide Asoprotection
DOI10.1002/fft2.192
Indexed ByESCI
WOS Research AreaFood Science & Technology
WOS SubjectFood Science & Technology
WOS IDWOS:000899765100001
PublisherWILEY, 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
Scopus ID2-s2.0-85144310866
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Citation statistics
Document TypeJournal article
CollectionTHE STATE KEY LABORATORY OF QUALITY RESEARCH IN CHINESE MEDICINE (UNIVERSITY OF MACAU)
Institute of Chinese Medical Sciences
Corresponding AuthorCheang, Wai San; Xiao, Jianbo
Affiliation1.State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau SAR, China
2.Department of Analytical and Food Chemistry, Faculty of Sciences, Universidade de Vigo, Nutrition and Bromatology Group, Ourense, Spain
3.Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
First Author AffilicationInstitute of Chinese Medical Sciences
Corresponding Author AffilicationInstitute of Chinese Medical Sciences
Recommended Citation
GB/T 7714
Miao, Lingchao,Cheong, Meng Sam,Zhou, Chunxiu,et al. Apigenin alleviates diabetic endothelial dysfunction through activating AMPK/PI3K/Akt/eNOS and Nrf2/HO-1 signaling pathways[J]. Food Frontiers, 2023, 4(1), 420-431.
APA Miao, Lingchao., Cheong, Meng Sam., Zhou, Chunxiu., Farag, Mohamed., Cheang, Wai San., & Xiao, Jianbo (2023). Apigenin alleviates diabetic endothelial dysfunction through activating AMPK/PI3K/Akt/eNOS and Nrf2/HO-1 signaling pathways. Food Frontiers, 4(1), 420-431.
MLA Miao, Lingchao,et al."Apigenin alleviates diabetic endothelial dysfunction through activating AMPK/PI3K/Akt/eNOS and Nrf2/HO-1 signaling pathways".Food Frontiers 4.1(2023):420-431.
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