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Tian A, Zheng Y, Li H, Zhang Z, Du L, Huang X, Sun L, Wu H. Eicosapentaenoic acid activates the P62/KEAP1/NRF2 pathway for the prevention of diabetes-associated cognitive dysfunction. Food Funct 2024; 15:5251-5271. [PMID: 38680120 DOI: 10.1039/d4fo00774c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
Diabetes-associated cognitive dysfunction (DCD) is a severe complication of diabetes mellitus (DM), threatening the life quality of the diabetic population. However, there is still a lack of effective approaches for its intervention. Eicosapentaenoic acid (EPA) is an omega-3 polyunsaturated fatty acid that was not previously investigated for its effect on DCD. In this study, EPA was found to improve DCD in a mouse model of type 2 DM (T2DM) induced by streptozotocin and a high-fat diet, exhibiting profound protective effects on cognitive dysfunction, neuronal loss, and cerebral oxidative stress and inflammation. While EPA did not attenuate advanced glycation end product-induced neuron injury, we hypothesized that EPA might protect neurons by regulating microglia polarization, the effect of which was confirmed by the co-culture of neurons and lipopolysaccharide-stimulated microglia. RNA sequencing identified nuclear factor-erythroid-2-related factor 2 (NRF2) antioxidant signaling as a major target of EPA in microglia. Mechanistically, EPA increased sequestosome-1 (SQSTM1 or P62) levels that might structurally inhibit Kelch-like ECH associated protein 1 (KEAP1), leading to nuclear translocation of NRF2. P62 and NRF2 predominantly mediated EPA's effect since the knockdown of P62 or NRF2 abolished EPA's protective effect on microglial oxidative stress and inflammation and sequential neuron injuries. Moreover, the regulation of P62/KEPA1/NRF2 axes by EPA was confirmed in the hippocampi of diabetic mice. The present work presents EPA as an effective nutritional approach and microglial P62/KEAP1/NRF2 as molecular targets for the intervention of DCD.
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Affiliation(s)
- Ao Tian
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Rd., Jinan, Shandong 250012, China
- Research Center of Translational Medicine, Jinan Central Hospital, Shandong University, 105 Jiefang Rd., Jinan, Shandong 250013, China.
| | - Yan Zheng
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Rd., Jinan, Shandong 250012, China
| | - Hui Li
- NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, Key Laboratory of Chemical Biology (Ministry of Education), Department of Pharmaceutics, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Rd., Jinan, Shandong 250012, China
| | - Zhiyue Zhang
- NMPA Key Laboratory for Technology Research and Evaluation of Drug Products, Key Laboratory of Chemical Biology (Ministry of Education), Department of Pharmaceutics, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Rd., Jinan, Shandong 250012, China
| | - Lei Du
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Rd., Jinan, Shandong 250012, China
- Research Center of Translational Medicine, Jinan Central Hospital, Shandong University, 105 Jiefang Rd., Jinan, Shandong 250013, China.
| | - Xiaoli Huang
- Department of Nutrition, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhua Xi Rd., Jinan, Shandong 250012, China.
| | - Lei Sun
- Department of Endocrinology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhua Xi Rd., Jinan, Shandong 250012, China.
| | - Hao Wu
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Rd., Jinan, Shandong 250012, China
- Research Center of Translational Medicine, Jinan Central Hospital, Shandong University, 105 Jiefang Rd., Jinan, Shandong 250013, China.
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Huang B, Han R, Tan H, Zhu W, Li Y, Jiang F, Xie C, Ren Z, Shi R. Scutellarin ameliorates diabetic nephropathy via TGF-β1 signaling pathway. NATURAL PRODUCTS AND BIOPROSPECTING 2024; 14:25. [PMID: 38656633 PMCID: PMC11043297 DOI: 10.1007/s13659-024-00446-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Accepted: 04/01/2024] [Indexed: 04/26/2024]
Abstract
Breviscapine, a natural flavonoid mixture derived from the traditional Chinese herb Erigeron breviscapus (Vant.) Hand-Mazz, has demonstrated a promising potential in improving diabetic nephropathy (DN). However, the specific active constituent(s) responsible for its therapeutic effects and the underlying pharmacological mechanisms remain unclear. In this study, we aimed to investigate the impact of scutellarin, a constituent of breviscapine, on streptozotocin-induced diabetic nephropathy and elucidate its pharmacological mechanism(s). Our findings demonstrate that scutellarin effectively ameliorates various features of DN in vivo, including proteinuria, glomerular expansion, mesangial matrix accumulation, renal fibrosis, and podocyte injury. Mechanistically, scutellarin appears to exert its beneficial effects through modulation of the transforming growth factor-β1 (TGF-β1) signaling pathway, as well as its interaction with the extracellular signal-regulated kinase (Erk) and Wnt/β-catenin pathways.
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Affiliation(s)
- Bangrui Huang
- Department of Endocrinology, The First Affiliated Hospital of Kunming Medical University, Kunming, 650032, People's Republic of China
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education)Yunnan Provincial Center for Research and Development of Natural Products, School of Pharmacy, Yunnan University, Kunming, 650500, People's Republic of China
| | - Rui Han
- Department of Endocrinology, The First Affiliated Hospital of Kunming Medical University, Kunming, 650032, People's Republic of China
| | - Hong Tan
- Department of Endocrinology, The First Affiliated Hospital of Kunming Medical University, Kunming, 650032, People's Republic of China
| | - Wenzhuo Zhu
- Department of Endocrinology, The First Affiliated Hospital of Kunming Medical University, Kunming, 650032, People's Republic of China
| | - Yang Li
- Department of Endocrinology, The First Affiliated Hospital of Kunming Medical University, Kunming, 650032, People's Republic of China
| | - Fakun Jiang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education)Yunnan Provincial Center for Research and Development of Natural Products, School of Pharmacy, Yunnan University, Kunming, 650500, People's Republic of China
| | - Chun Xie
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education)Yunnan Provincial Center for Research and Development of Natural Products, School of Pharmacy, Yunnan University, Kunming, 650500, People's Republic of China
| | - Zundan Ren
- Department of Endocrinology, The First Affiliated Hospital of Kunming Medical University, Kunming, 650032, People's Republic of China
| | - Rou Shi
- Department of Endocrinology, The First Affiliated Hospital of Kunming Medical University, Kunming, 650032, People's Republic of China.
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Wei X, Zou H, Zhang T, Huo Y, Yang J, Wang Z, Li Y, Zhao J. Gestational Diabetes Mellitus: What Can Medical Nutrition Therapy Do? Nutrients 2024; 16:1217. [PMID: 38674907 PMCID: PMC11055016 DOI: 10.3390/nu16081217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 04/12/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
Gestational diabetes mellitus (GDM) is one of the common complications during pregnancy. Numerous studies have shown that GDM is associated with a series of adverse effects on both mothers and offspring. Due to the particularity of pregnancy, medical nutrition treatment is considered to be the first choice for the treatment of GDM. This contribution reviews the research progress of medical nutrition treatment in GDM, summarizes the international recommendations on the intake of various nutrients and the influence of nutrients on the prevalence of GDM, and the improvement effect of nutritional intervention on it, in order to provide references for research in related fields of GDM and the targeted development of enteral nutrition.
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Affiliation(s)
- Xiaoyi Wei
- CAS Engineering Laboratory for Nutrition, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China; (X.W.); (H.Z.); (T.Z.); (Y.H.); (Y.L.)
| | - Hong Zou
- CAS Engineering Laboratory for Nutrition, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China; (X.W.); (H.Z.); (T.Z.); (Y.H.); (Y.L.)
| | - Tingting Zhang
- CAS Engineering Laboratory for Nutrition, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China; (X.W.); (H.Z.); (T.Z.); (Y.H.); (Y.L.)
| | - Yanling Huo
- CAS Engineering Laboratory for Nutrition, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China; (X.W.); (H.Z.); (T.Z.); (Y.H.); (Y.L.)
| | - Jianzhong Yang
- Sunline Research Laboratories, Jiangsu Sunline Deep Sea Fishery Co., Ltd., Lianyungang 222042, China; (J.Y.); (Z.W.)
| | - Zhi Wang
- Sunline Research Laboratories, Jiangsu Sunline Deep Sea Fishery Co., Ltd., Lianyungang 222042, China; (J.Y.); (Z.W.)
| | - Yu Li
- CAS Engineering Laboratory for Nutrition, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China; (X.W.); (H.Z.); (T.Z.); (Y.H.); (Y.L.)
| | - Jiuxiang Zhao
- CAS Engineering Laboratory for Nutrition, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China; (X.W.); (H.Z.); (T.Z.); (Y.H.); (Y.L.)
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Wang Y, Xu S, Tang L, Gong J, Su D, Yang H. Piperine as a Potential Nutraceutical Agent for Managing Diabetes and Its Complications: A Literature Review. J Med Food 2023. [PMID: 37725004 DOI: 10.1089/jmf.2023.k.0098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023] Open
Abstract
The global prevalence of diabetes and its related complications has increased drastically and is currently a worldwide health challenge. There is still an urgent need for safe and effective natural products and supplements as alternative and/or adjunctive therapeutic interventions. Nowadays, people pay more and more attention to the nutritional and medicinal value of food ingredients. As one of the most widely employed spices in cooking, pepper also has novel medicinal values attributed to its main component, piperine (Pip). Pip is an amide alkaloid with pleiotropic properties such as anti-inflammatory, antioxidant, anti-cancer, and other related activities. Recently, Pip has received increasing scientific attention due to its antidiabetic and related complication properties. However, the values of existing studies are limited due to being scattered and unsystematic. The present study reviewed the therapeutic potential and possible mechanisms of Pip in diabetes and related complications, with the aim of providing promising candidates for the development of novel and effective alternative and/or adjunctive nutraceutical agents for the management of diabetes.
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Affiliation(s)
- Yujie Wang
- Department of Pharmacy, the Third Affiliated Hospital of Soochow University, the First Peoples's Hospital of Changzhou, Changzhou, China
| | - Shan Xu
- Department of Pharmacy, the Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Lidan Tang
- Department of Pharmacy, the Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Jinhong Gong
- Department of Pharmacy, the Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Dan Su
- Department of Pharmacy, the Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Hao Yang
- Department of Pharmacy, the Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
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Zhen Q, Liang Q, Wang H, Zheng Y, Lu Z, Bian C, Zhao X, Guo X. Theabrownin ameliorates liver inflammation, oxidative stress, and fibrosis in MCD diet-fed C57BL/6J mice. Front Endocrinol (Lausanne) 2023; 14:1118925. [PMID: 36742397 PMCID: PMC9889550 DOI: 10.3389/fendo.2023.1118925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 01/03/2023] [Indexed: 01/20/2023] Open
Abstract
Introduction Nonalcoholic steatohepatitis (NASH), also known as metabolic steatohepatitis, is a clinical syndrome with pathological changes like alcoholic hepatitis but without a history of excessive alcohol consumption. NASH is closely related to metabolic disorders such as obesity, insulin resistance, type 2 diabetes mellitus, and hyperlipidemia. Its main characteristics are hepatocyte steatosis with hepatocyte injury and inflammation. In severe cases, it can develop into liver cirrhosis. At present, there is no special treatment for NASH. Theabrownin (TB) is the main pigment substance in fermented tea. Theabrownin has beneficial effects on lipid metabolism and intestinal flora. However, the effect of theabrownin on NASH has not been studied. Methods This study was aimed at exploring the effects of theabrownin from Fuzhuan brick tea on NASH. 8-week-old mice were randomly assigned to three groups and fed with chow diet (CD), methionine and choline sufficient (MCS) diet (MCS Ctrl), which is a Methionine/choline deficient (MCD) control diet, and MCD diet. After 5 weeks of feeding, the MCD group mice were randomly divided into two groups and were gavaged with double distilled water (MCD Ctrl) or theabrownin (MCD TB) (200mg/kg body weight, dissolved in double distilled water) every day for another 4 weeks respectively, while continuing MCD diet feeding. Results We found that theabrownin treatment could not improve liver mass loss and steatosis. However, theabrownin ameliorated liver injury and decreased liver inflammatory response. Theabrownin also alleviated liver oxidative stress and fibrosis. Furthermore, our results showed that theabrownin increased hepatic level of fibroblast growth factor 21 (FGF21) and reduced the phosphorylation of mitogen-activated protein kinase p38 in MCD diet-fed mice.
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Affiliation(s)
- Qingcai Zhen
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Qijian Liang
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Hongchun Wang
- Shandong Engineering Research Center of Biomarker and Artificial Intelligence Application, Jinan, Shandong, China
- Department of Clinical Laboratory, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Yan Zheng
- Research Center of Translational Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Zhongting Lu
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Chunyong Bian
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Xiulan Zhao
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Institute of Toxicology, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Xin Guo
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Research Center of Translational Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, China
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Local Application of Krill Oil Accelerates the Healing of Artificially Created Wounds in Diabetic Mice. Nutrients 2022; 14:nu14194139. [PMID: 36235791 PMCID: PMC9571309 DOI: 10.3390/nu14194139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 09/29/2022] [Accepted: 09/29/2022] [Indexed: 11/07/2022] Open
Abstract
Diabetes mellitus (DM) impairs the wound healing process, seriously threatening the health of the diabetic population. To date, few effective approaches have been developed for the treatment of diabetic wounds. Krill oil (KO) contains bioactive components that have potent anti-inflammatory and anti-oxidative activities. As prolonged inflammation is a crucial contributor to DM-impaired wound healing, we speculated that the local application of KO would accelerate diabetic wound healing. Therefore, KO was applied to artificially created wounds of type 2 diabetic mice induced by streptozotocin and high-fat diet. The diabetic mice had a delayed wound healing process compared with the non-diabetic control mice, with excessive inflammation, impaired collagen deposition, and depressed neovascularization in the wound area. These effects were dramatically reversed by KO. In vitro, KO blocked the TNF-α-induced macrophage inflammation, fibroblast dysfunction, and endothelial angiogenic impairment. The present study in mice suggests that KO local application could be a viable approach in the management of diabetic wounds.
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