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Liu X, Liang Z, Duan H, Yu J, Qin Z, Li J, Zhu L, Wu Q, Xiao W, Shen C, Wan C, Wu K, Ye H, Zhang B, Zhao W. Dengue virus is involved in insulin resistance via the downregulation of IRS-1 by inducing TNF-α secretion. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166472. [PMID: 35752384 DOI: 10.1016/j.bbadis.2022.166472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 06/15/2022] [Accepted: 06/16/2022] [Indexed: 11/29/2022]
Abstract
During the epidemic, the individuals with underlying diseases usually have a higher rate of mortality. Diabetes is highly prevalent worldwide, making it a frequent comorbidity in dengue fever patients. Therefore, understanding the relationship between dengue virus (DENV) infection and diabetes is important. We first demonstrated that DENV-3 infection down-regulated the expression of IRS-1. In vitro, treatment of HepG2 cells with TNF-α inhibitors and siRNA proved that after DENV-3 infection in HepG2 cells, cellular TNF-α secretion was increased, which negatively regulated IRS-1, thereby leading to an insulin-resistant state. In vivo, DENV-3 induced insulin resistance (IR) in hepatocytes by promoting the secretion of TNF-α and inhibiting the expression of IRS-1 was proved. In vivo approaches also showed that after DENV-3 infection, TNF-α levels in the serum of C57BL/6 mice with insulin resistance increased, and upon TNF-α antagonist III treatment, IRS-1 expression in the liver, reduced by infection, was upregulated. In addition, transcriptomic analysis revealed more negative regulatory events in the insulin receptor signaling pathway after DENV-3 infection. This is the first report of a link between DENV-3 infection and insulin resistance, and it lays a foundation for further research.
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Affiliation(s)
- Xuling Liu
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Zuxin Liang
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Hongwei Duan
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Jianhai Yu
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Zhiran Qin
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Jingshu Li
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Li Zhu
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Qinghua Wu
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Weiwei Xiao
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Chenguang Shen
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Chengsong Wan
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Kefeng Wu
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang 524023, China
| | - Hua Ye
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang 524023, China.
| | - Bao Zhang
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China.
| | - Wei Zhao
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China.
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Méndez-García LA, Bueno-Hernández N, Cid-Soto MA, De León KL, Mendoza-Martínez VM, Espinosa-Flores AJ, Carrero-Aguirre M, Esquivel-Velázquez M, León-Hernández M, Viurcos-Sanabria R, Ruíz-Barranco A, Cota-Arce JM, Álvarez-Lee A, De León-Nava MA, Meléndez G, Escobedo G. Ten-Week Sucralose Consumption Induces Gut Dysbiosis and Altered Glucose and Insulin Levels in Healthy Young Adults. Microorganisms 2022; 10:microorganisms10020434. [PMID: 35208888 PMCID: PMC8880058 DOI: 10.3390/microorganisms10020434] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 02/03/2022] [Accepted: 02/09/2022] [Indexed: 02/04/2023] Open
Abstract
Sucralose consumption alters microbiome and carbohydrate metabolism in mouse models. However, there are no conclusive studies in humans. Our goals were to examine the effect of sucralose consumption on the intestinal abundance of bacterial species belonging to Actinobacteria, Bacteroidetes, and Firmicutes and explore potential associations between microbiome profiles and glucose and insulin blood levels in healthy young adults. In this open-label clinical trial, volunteers randomly drank water, as a control (n = 20), or 48 mg sucralose (n = 20), every day for ten weeks. At the beginning and the end of the study, participants were subjected to an oral glucose tolerance test (OGTT) to measure serum glucose and insulin every 15 min for 3 h and provided fecal samples to assess gut microbiota using a quantitative polymerase chain reaction. Sucralose intake altered the abundance of Firmicutes without affecting Actinobacteria or Bacteroidetes. Two-way ANOVA revealed that volunteers drinking sucralose for ten weeks showed a 3-fold increase in Blautia coccoides and a 0.66-fold decrease in Lactobacillus acidophilus compared to the controls. Sucralose consumption increased serum insulin and the area under the glucose curve compared to water. Long-term sucralose ingestion induces gut dysbiosis associated with altered insulin and glucose levels during an OGTT.
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Affiliation(s)
- Lucía A. Méndez-García
- Laboratory of Immunometabolism, Research Division, General Hospital of Mexico, Mexico City 06720, Mexico; (L.A.M.-G.); (R.V.-S.)
| | - Nallely Bueno-Hernández
- Laboratory for Proteomics and Metabolomics, General Hospital of Mexico, Mexico City 06720, Mexico; (N.B.-H.); (K.L.D.L.); (V.M.M.-M.); (A.J.E.-F.); (M.C.-A.); (M.E.-V.); (M.L.-H.)
| | - Miguel A. Cid-Soto
- Immunogenomics and Metabolic Diseases Laboratory, Instituto Nacional de Medicina Genómica, Mexico City 14610, Mexico;
| | - Karen L. De León
- Laboratory for Proteomics and Metabolomics, General Hospital of Mexico, Mexico City 06720, Mexico; (N.B.-H.); (K.L.D.L.); (V.M.M.-M.); (A.J.E.-F.); (M.C.-A.); (M.E.-V.); (M.L.-H.)
| | - Viridiana M. Mendoza-Martínez
- Laboratory for Proteomics and Metabolomics, General Hospital of Mexico, Mexico City 06720, Mexico; (N.B.-H.); (K.L.D.L.); (V.M.M.-M.); (A.J.E.-F.); (M.C.-A.); (M.E.-V.); (M.L.-H.)
| | - Aranza J. Espinosa-Flores
- Laboratory for Proteomics and Metabolomics, General Hospital of Mexico, Mexico City 06720, Mexico; (N.B.-H.); (K.L.D.L.); (V.M.M.-M.); (A.J.E.-F.); (M.C.-A.); (M.E.-V.); (M.L.-H.)
| | - Miguel Carrero-Aguirre
- Laboratory for Proteomics and Metabolomics, General Hospital of Mexico, Mexico City 06720, Mexico; (N.B.-H.); (K.L.D.L.); (V.M.M.-M.); (A.J.E.-F.); (M.C.-A.); (M.E.-V.); (M.L.-H.)
| | - Marcela Esquivel-Velázquez
- Laboratory for Proteomics and Metabolomics, General Hospital of Mexico, Mexico City 06720, Mexico; (N.B.-H.); (K.L.D.L.); (V.M.M.-M.); (A.J.E.-F.); (M.C.-A.); (M.E.-V.); (M.L.-H.)
| | - Mireya León-Hernández
- Laboratory for Proteomics and Metabolomics, General Hospital of Mexico, Mexico City 06720, Mexico; (N.B.-H.); (K.L.D.L.); (V.M.M.-M.); (A.J.E.-F.); (M.C.-A.); (M.E.-V.); (M.L.-H.)
| | - Rebeca Viurcos-Sanabria
- Laboratory of Immunometabolism, Research Division, General Hospital of Mexico, Mexico City 06720, Mexico; (L.A.M.-G.); (R.V.-S.)
- PECEM, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
| | | | - Julián M. Cota-Arce
- Department of Biomedical Innovation, Center for Scientific Research and Higher Education of Ensenada (CICESE), Baja California 22860, Mexico; (J.M.C.-A.); (A.Á.-L.); (M.A.D.L.-N.)
| | - Angélica Álvarez-Lee
- Department of Biomedical Innovation, Center for Scientific Research and Higher Education of Ensenada (CICESE), Baja California 22860, Mexico; (J.M.C.-A.); (A.Á.-L.); (M.A.D.L.-N.)
| | - Marco A. De León-Nava
- Department of Biomedical Innovation, Center for Scientific Research and Higher Education of Ensenada (CICESE), Baja California 22860, Mexico; (J.M.C.-A.); (A.Á.-L.); (M.A.D.L.-N.)
| | - Guillermo Meléndez
- Facultad de Salud Pública y Nutrición, Universidad Autónoma de Nuevo León, Monterrey 64460, Mexico
- Correspondence: (G.M.); (G.E.); Tel.: +52-552-789-2000 (ext. 5646) (G.E.)
| | - Galileo Escobedo
- Laboratory of Immunometabolism, Research Division, General Hospital of Mexico, Mexico City 06720, Mexico; (L.A.M.-G.); (R.V.-S.)
- Correspondence: (G.M.); (G.E.); Tel.: +52-552-789-2000 (ext. 5646) (G.E.)
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Extract of pre-germinated brown rice protects against cardiovascular dysfunction by reducing levels of inflammation and free radicals in a rat model of type II diabetes. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104218] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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A Novel STAT3-Mediated GATA6 Pathway Contributes to tert-Butylhydroquinone- (tBHQ-) Protected TNF α-Activated Vascular Cell Adhesion Molecule 1 (VCAM-1) in Vascular Endothelium. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:6584059. [PMID: 33274004 PMCID: PMC7683157 DOI: 10.1155/2020/6584059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/16/2020] [Accepted: 10/22/2020] [Indexed: 11/17/2022]
Abstract
The activation of vascular cell adhesion molecule 1 (VCAM-1) in vascular endothelial cells has been well considered implicating in the initiation and processing of atherosclerosis. Oxidative stress is mechanistically involved in proatherosclerotic cytokine-induced VCAM-1 activation. tert-Butylhydroquinone (tBHQ), a synthetic phenolic antioxidant used for preventing lipid peroxidation of food, possesses strongly antioxidant capacity against oxidative stress-induced dysfunction in various pathological process. Here, we investigated the protective role of tBHQ on tumor necrosis factor alpha- (TNFα-) induced VCAM-1 activation in both aortic endothelium of mice and cultured human vascular endothelial cells and uncovered its potential mechanisms. Our data showed that tBHQ treatment significantly reversed TNFα-induced activation of VCAM-1 at both transcriptional and protein levels. The mechanistic study revealed that inhibiting neither nuclear factor (erythroid-derived 2)-like 2 (Nrf2) nor autophagy blocked the beneficial role of tBHQ. Alternatively, tBHQ intervention markedly alleviated TNFα-increased GATA-binding protein 6 (GATA6) mRNA and protein expressions and its translocation into nucleus. Further investigation indicated that tBHQ-inhibited signal transducer and activator of transcription 3 (STAT3) but not mitogen-activated protein kinase (MAPK) pathway contributed to its protective role against VCAM-1 activation via regulating GATA6. Collectively, our data demonstrated that tBHQ prevented TNFα-activated VCAM-1 via a novel STAT3/GATA6-involved pathway. tBHQ could be a potential candidate for the prevention of proatherosclerotic cytokine-caused inflammatory response and further dysfunctions in vascular endothelium.
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Tanataweethum N, Zhong F, Trang A, Lee C, Cohen RN, Bhushan A. Towards an Insulin Resistant Adipose Model on a Chip. Cell Mol Bioeng 2020; 14:89-99. [PMID: 33643468 DOI: 10.1007/s12195-020-00636-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 07/07/2020] [Indexed: 12/25/2022] Open
Abstract
Introduction Adipose tissue and adipocytes are primary regulators of insulin sensitivity and energy homeostasis. Defects in insulin sensitivity of the adipocytes predispose the body to insulin resistance (IR) that could lead to diabetes. However, the mechanisms mediating adipocyte IR remain elusive, which emphasizes the need to develop experimental models that can validate the insulin signaling pathways and discover new mechanisms in the search for novel therapeutics. Currently in vitro adipose organ-chip devices show superior cell function over conventional cell culture. However, none of these models represent disease states. Only when these in vitro models can represent both healthy and disease states, they can be useful for developing therapeutics. Here, we establish an organ-on-chip model of insulin-resistant adipocytes, as well as characterization in terms of insulin signaling pathway and lipid metabolism. Methods We differentiated, maintained, and induced insulin resistance into primary adipocytes in a microfluidic organ-on-chip. We then characterized IR by looking at the insulin signaling pathway and lipid metabolism, and validated by studying a diabetic drug, rosiglitazone. Results We confirmed the presence of insulin resistance through reduction of Akt phosphorylation, Glut4 expression, Glut4 translocation and glucose uptake. We also confirmed defects of disrupted insulin signaling through reduction of lipid accumulation from fatty acid uptake and elevation of glycerol secretion. Testing with rosiglitazone showed a significant improvement in insulin sensitivity and fatty acid metabolism as suggested by previous reports. Conclusions The adipose-chip exhibited key characteristics of IR and can serve as model to study diabetes and facilitate discovery of novel therapeutics.
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Affiliation(s)
- Nida Tanataweethum
- Department of Biomedical Engineering, Illinois Institute of Technology, Chicago, IL 60616 USA
| | - Franklin Zhong
- Department of Biomedical Engineering, Illinois Institute of Technology, Chicago, IL 60616 USA
| | - Allyson Trang
- Department of Biomedical Engineering, Illinois Institute of Technology, Chicago, IL 60616 USA
| | - Chaeeun Lee
- Department of Biomedical Engineering, Illinois Institute of Technology, Chicago, IL 60616 USA
| | - Ronald N Cohen
- Section of Endocrinology, Department of Medicine, The University of Chicago, Chicago, IL 60637 USA
| | - Abhinav Bhushan
- Department of Biomedical Engineering, Illinois Institute of Technology, Chicago, IL 60616 USA
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Lin HL, Lin SH, Shen KP, Chan HC, Tseng YH, Yen HW, Law SH, Ke LY. Efficiency comparison of PGBR extract and γ-oryzanol in antioxidative stress and anti-inflammatory properties against metabolic syndrome. J Food Biochem 2019; 44:e13129. [PMID: 31846084 DOI: 10.1111/jfbc.13129] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 11/27/2019] [Accepted: 11/28/2019] [Indexed: 12/12/2022]
Abstract
This research aims to delineate the anti-inflammatory effect of pregerminated brown rice extract (PE) and γ-oryzanol on improving metabolic features of high-fat diet (HFD)-induced metabolic syndrome (MetS) mouse model. C57BL/6 mice were randomly divided into eight groups: regular diet (RD), HFD, HFD-combined treatment of 0.5, 5, or 10 mg kg-1 day-1 oral gavage γ-oryzanol, and 30, 300, or 600 mg kg-1 day-1 PE for 18 weeks. HFD-fed mice showed overweight, hyperglycemia, hyperlipidemia signs of metabolic disorder, and elevation of inflammatory cytokines such as IL-6, TNF-α, IFN-γ, NO, PGE2 in serum and MAPKs, transcription factor p65, iNOS, and MDA in the liver. In contrast, HFD-fed mice showed lower levels of adiponectin in serum and antiperoxidation enzymes GPx, SOD, and catalase in the liver. While HFD-fed mice cotreated with PE or γ-oryzanol, HFD-induced metabolic disorders, ROS, and inflammation were improved. The anti-MetS, antioxidative stress and anti-inflammation properties of PE were more potent than γ-oryzanol. PRACTICAL APPLICATIONS: Our study showed that PE or γ-oryzanol supplement could help control metabolic disorders, oxidative stress, chronic inflammation, and related complications.
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Affiliation(s)
- Hui-Li Lin
- Lipid Science and Aging Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shih-Hsiung Lin
- Department of Nursing, Meiho University, Pingtung, Taiwan.,Department of Paediatrics, Antai Medical Care Cooperation Antai Tian-Sheng Memorial Hospital, Pingtung, Taiwan
| | - Kuo-Ping Shen
- Department of Nursing, Meiho University, Pingtung, Taiwan
| | - Hua-Chen Chan
- Center for Lipid Biosciences, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Yu-Hsiu Tseng
- Graduate Institute of Food Culture and Innovation, National Kaohsiung University of Hospitality and Tourism, Kaohsiung, Taiwan
| | - Hsueh-Wei Yen
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Shi-Hui Law
- Department of Medical Laboratory Science and Biotechnology, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Liang-Yin Ke
- Lipid Science and Aging Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Center for Lipid Biosciences, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Medical Laboratory Science and Biotechnology, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan.,Graduate Institute of Medicine, College of Medicine, & Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
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Liu H, Zhang Y, Pei X, Xie Z, Shi K, Li A. Effects of standard wheat flour proportion in total dietary carbohydrates on blood glucose, lipid metabolism, and inflammation in mice. FOOD AGR IMMUNOL 2019. [DOI: 10.1080/09540105.2019.1635088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Affiliation(s)
- Haiying Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P.R. People’s Republic of China
- School of Food Science and Technology, Jiangnan University, Wuxi, P.R. People’s Republic of China
| | - Yiran Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P.R. People’s Republic of China
- School of Food Science and Technology, Jiangnan University, Wuxi, P.R. People’s Republic of China
| | - Xinli Pei
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P.R. People’s Republic of China
- School of Food Science and Technology, Jiangnan University, Wuxi, P.R. People’s Republic of China
| | - Zhongguo Xie
- College of Life and Environmental Sciences, Hunan University of Arts and Science, Changde, P.R. People’s Republic of China
| | - Kaiwen Shi
- School of Food Science and Technology, Jiangnan University, Wuxi, P.R. People’s Republic of China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, P.R. People’s Republic of China
| | - Aike Li
- Cereals and Oils Nutrition Research Center, Academy of State Administration of Grain (ASAG), Beijing, People’s Republic of China
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Chen FC, Shen KP, Ke LY, Lin HL, Wu CC, Shaw SY. Flavonoids from Camellia sinensis (L.) O. Kuntze seed ameliorates TNF-α induced insulin resistance in HepG2 cells. Saudi Pharm J 2019; 27:507-516. [PMID: 31061619 PMCID: PMC6488808 DOI: 10.1016/j.jsps.2019.01.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Accepted: 01/15/2019] [Indexed: 12/31/2022] Open
Abstract
The aim of this study is to discuss the non-catechin flavonoids (NCF) from Camellia sinensis (L.) O. Kuntze seed improving TNF-α impaired insulin stimulated glucose uptake and insulin signaling. Flavonoids had anti-metabolic syndrome and anti-inflammatory properties. It had widely been known for biological activity of catechins in tea, but very few research reports discussed the biological activity of non-catechin flavonoids in tea seed. We used HepG2 cell to treat with 5 μM insulin or with 5 μM insulin + 30 ng/ml TNF-α. Detecting the glucose concentration of medium, insulin decreased the glucose levels of medium meant that insulin promoted glucose uptake into cells, but TNF-α inhibited the glucose uptake effect of insulin. Furthermore, insulin increased the protein expressions of IR, IRS-1, IRS-2, PI3K-α, Akt/PKB, GLUT-2, AMPK, GCK, pyruvate kinase, and PPAR-γ. TNF-α activated p65 and MAPKs (p38, JNK1/2 and ERK1/2), iNOS and COX-2 which worsened the insulin signaling expressions of IR, IRS-1, IRS-2, PI3K-α, Akt/PKB, GLUT-2, AMPK, GCK, pyruvate kinase, and PPAR-γ. We added NCF (500, 1000, 2000 ppm) to cell with insulin and TNF-α. Not only glucose levels of medium were lowered, and the protein expressions of insulin signaling were increased, but p38, JNK1/2, iNOS and COX-2 were also reduced. NCF could ameliorate TNF-α induced insulin resistance through inhibiting p38, JNK1/2, iNOS and COX-2, and suggested that it might be used in the future to help control insulin resistance. This finding is the first report to present the discovery.
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Affiliation(s)
- Fu-Chih Chen
- Department of Chemistry, National Cheng Kung University, Tainan, Taiwan
| | - Kuo-Ping Shen
- Department of Nursing, Meiho University, Pingtung, Taiwan
| | - Liang-Yin Ke
- Department of Medical Laboratory Science and Biotechnology and Center for Lipid Biosciences, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hui-Li Lin
- Department of Medical Laboratory Science and Biotechnology and Center for Lipid Biosciences, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chia-Chang Wu
- Veternas Affairs Council, Fushoushan Farm, Taichung Heping, Taiwan
| | - Shyh-Yu Shaw
- Department of Chemistry, National Cheng Kung University, Tainan, Taiwan
- Institute of Biotechnology, National Cheng Kung University, Tainan, Taiwan
- Corresponding author at: Department of Chemistry National Cheng Kung University, No. 1, University Road, Tainan City 701, Taiwan.
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Hao CL, Lin HL, Ke LY, Yen HW, Shen KP. Pre-germinated brown rice extract ameliorates high-fat diet-induced metabolic syndrome. J Food Biochem 2019; 43:e12769. [PMID: 31353547 DOI: 10.1111/jfbc.12769] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 11/26/2018] [Accepted: 12/28/2018] [Indexed: 12/17/2022]
Abstract
This study examined the effect of pre-germinated brown rice extract (PGBRE), containing no dietary fibers, but γ-oryzanol, γ-aminobutyric acid (GABA), flavonoids, and anthocyanidin, on high-fat-diet (HFD)-induced metabolic syndrome. C57BL/6 mice were divided into five groups: regular diet, HFD, HFD with oral PGBRE 30, 300, or 600 mg/kg per day for 18 weeks. In the HFD group, higher body and liver weight gain, hyperglycemia, HbA1c, and insulin; higher TG, TC, LDL-C, non-HDL, atherosclerosis index, lower HDL, adiponectin in blood; higher TG in the liver; higher TG, bile acid in feces; and lower protein levels of AMP-activated protein kinase, insulin receptor, insulin receptor substrate-1, insulin receptor substrate-2, peroxisome proliferator-activated receptor-γ, phosphatidylinositol-3-kinase, Akt/PKB, glucose transporter-1, glucose transporter-4, glucokinase in the skeletal muscle; lower glucagon-like peptide 1 (GLP-1) in the intestine; higher sterol regulatory element-binding protein-1 (SREBP-1), stearoyl-CoA desaturase 1 (SCD-1), fatty acid synthase (FAS), 3-hydroxy-3-methylglutaryl-CoA reductase, proprotein convertase subtilisin/kexin type 9 (PCSK9), and lower PPAR-α, low-density lipoprotein receptor, cholesterol-7α-hydroxylase in the liver; higher SREBP-1, SCD-1, FAS, and lower PPAR-α, adiponectin in the adipose tissue were found. In HFD + PGBRE groups, the above biochemical parameters were improved. PRACTICAL APPLICATIONS: According to the results, we suggested that dietary fibers played a minor role in this study. Extract of PGBR, excluding dietary fiber, showed beneficial activity to ameliorate metabolic syndrome. γ-oryzanol, GABA, flavonoids, and anthocyanidin in PGBRE can inhibit HFD-induced metabolic syndrome and we demonstrated clearly its action mechanisms. This is the first report to examine the relation between PGBRE, GLP-1, and PCSK9. Taken together, PGBRE can potentially be used to develop a good supplement to control metabolic syndrome.
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Affiliation(s)
- Chi-Long Hao
- Division of Cardiology, Department of Internal Medicine, Pingtung Christian Hospital, Pingtung, Taiwan
| | - Hui-Li Lin
- Department of Food Science and Nutrition, Meiho University, Pingtung, Taiwan
| | - Liang-Yin Ke
- Lipid Science and Aging Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Center for Lipid Biosciences, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Medical Laboratory Science and Biotechnology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hsueh-Wei Yen
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Kuo-Ping Shen
- Department of Nursing, Meiho University, Pingtung, Taiwan
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Abdelazim A, Khater S, Ali H, Shalaby S, Afifi M, Saddick S, Alkaladi A, Almaghrabi OA. Panax ginseng improves glucose metabolism in streptozotocin-induced diabetic rats through 5' adenosine monophosphate kinase up-regulation. Saudi J Biol Sci 2018; 26:1436-1441. [PMID: 31762606 PMCID: PMC6864146 DOI: 10.1016/j.sjbs.2018.06.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 05/09/2018] [Accepted: 06/04/2018] [Indexed: 12/12/2022] Open
Abstract
5′ AMP-activated protein kinase (AMPK), insulin receptors and transporters are distorted in diabetes mellitus. In this study, the effect of Panax ginseng was assessed on glucose manipulating enzymes activities and gene expression of AMPK, IRA and GLUT2 in streptozotocin-induced diabetic male rats. Forty male albino rats were randomly divided to four groups 10 rats of each, group I, normal control group (received saline orally); group II, normal rats received 200 mg/kg of Panax ginseng orally; group III, Streptozotocin (STZ) –induced diabetic rats and group IV, STZ-induced diabetic rats received 200 mg/kg of Panax ginseng orally. The duration of experiment was 30 days. Results showed the ability of Panax ginseng to induce a significant decrease in the blood glucose and increase in the serum insulin levels, hepatic glucokinase (GK), and glycogen synthase (GS) activities with a modulation of lipid profile besides high expression levels of AMPK, insulin receptor A (IRA), glucose transporting protein-2 (GLUT-2) in liver of diabetic rats. In conclusion, the obtained results point to the ability of Panax ginseng to improve the glucose metabolism in diabetic models.
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Affiliation(s)
- Aaser Abdelazim
- Department of Biochemistry, Faculty of Vet. Medicine, Zagazig University, Zagazig, Egypt.,Department of Basic Medical Sciences, College of Applied Medical Sciences, University of Bisha, Bisha, Saudi Arabia
| | - Safaa Khater
- Department of Biochemistry, Faculty of Vet. Medicine, Zagazig University, Zagazig, Egypt
| | - Haytham Ali
- Department of Biochemistry, Faculty of Vet. Medicine, Zagazig University, Zagazig, Egypt.,Department of Biological Sciences, Faculty of Science, University of Jeddah, Saudi Arabia
| | - Shimaa Shalaby
- Department of Physiology, Faculty of Vet. Medicine, Zagazig University, Zagazig, Egypt
| | - Mohamed Afifi
- Department of Biochemistry, Faculty of Vet. Medicine, Zagazig University, Zagazig, Egypt.,Department of Biological Sciences, Faculty of Science, University of Jeddah, Saudi Arabia.,University of Jeddah Center for Scientific and Medical Research, University of Jeddah, Saudi Arabia
| | - Salina Saddick
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Ali Alkaladi
- Department of Biological Sciences, Faculty of Science, University of Jeddah, Saudi Arabia
| | - Omar A Almaghrabi
- Department of Biological Sciences, Faculty of Science, University of Jeddah, Saudi Arabia
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