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Zhu X, Ding G, Ren S, Xi J, Liu K. The bioavailability, absorption, metabolism, and regulation of glucolipid metabolism disorders by quercetin and its important glycosides: A review. Food Chem 2024; 458:140262. [PMID: 38944925 DOI: 10.1016/j.foodchem.2024.140262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 06/21/2024] [Accepted: 06/26/2024] [Indexed: 07/02/2024]
Abstract
Quercetin and its glycosides (QG), vitally natural flavonoid, have been popular for health benefits. However, the absorption and metabolism affect their bioavailability, and the metabolic transformation alters their biological activities. This review systematically summarizes the bioavailability and pathways for the absorption and metabolism of quercetin/QG in vivo and in vitro, the biological activities and mechanism of quercetin/QG and their metabolites in treating glucolipid metabolism are discussed. After oral administration, quercetin/QG are mainly absorbed by the intestine, undergo phase II metabolism in the small intestine and liver to form conjugates and are metabolized into small phenolic acids by intestinal microbiota. Quercetin/QG and their metabolites exert beneficial effects on regulating glucolipid metabolism disorders, including improving insulin resistance, inhibiting lipogenesis, enhancing thermogenesis, modulating intestinal microbiota, relieving oxidative stress, and attenuating inflammation. This review enhances understanding of the mechanism of quercetin/QG regulate glucolipid metabolism and provides scientific support for the development of functional foods.
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Affiliation(s)
- Xiaoai Zhu
- Food Engineering Technology Research Center/Key Laboratory of Henan Province, Henan Key Laboratory of Natural Pigment Preparation, College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, PR China.
| | - Guiyuan Ding
- Food Engineering Technology Research Center/Key Laboratory of Henan Province, Henan Key Laboratory of Natural Pigment Preparation, College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, PR China
| | - Shuncheng Ren
- Food Engineering Technology Research Center/Key Laboratory of Henan Province, Henan Key Laboratory of Natural Pigment Preparation, College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, PR China
| | - Jun Xi
- Food Engineering Technology Research Center/Key Laboratory of Henan Province, Henan Key Laboratory of Natural Pigment Preparation, College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, PR China
| | - Kunlun Liu
- Food Engineering Technology Research Center/Key Laboratory of Henan Province, Henan Key Laboratory of Natural Pigment Preparation, College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, PR China.
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Rafiei H, Yeung M, Kowalski S, Krystal G, Elisia I. Development of a novel human triculture model of non-alcoholic fatty liver disease and identification of berberine as ameliorating steatosis, oxidative stress and fibrosis. Front Pharmacol 2023; 14:1234300. [PMID: 37927606 PMCID: PMC10620695 DOI: 10.3389/fphar.2023.1234300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 10/09/2023] [Indexed: 11/07/2023] Open
Abstract
Objectives: Non-alcoholic fatty liver disease (NAFLD) and its progression to non-alcoholic steatohepatitis (NASH) and hepatocarcinoma is a serious and growing problem. However, the development of new therapies is severely hindered by a lack of high-throughput assays for drug testing. Methods: We have developed a simple transwell assay comprised of HepG2 hepatocytes, hepatic LX-2 stellate cells, and differentiated THP-1 cells. The cells were incubated with an activating mixture containing the NASH-associated risk factors, glucose, insulin, free fatty acids (FFAs), and lipopolysaccharide (LPS) for 72 h. We compared different combinations of culture conditions to obtain a model system that recapitulates the main features of NAFLD/NASH, i.e., increased steatosis, reactive oxygen species (ROS), secretion of pro-inflammatory cytokines/chemokines, and presence of fibrosis. To confirm the usefulness of the optimized model system, we screened for compounds that inhibit steatosis in the hepatocytes and evaluated the most effective compound in the triculture model system. Results: The activating mixture stimulated HepG2 cells in this triculture to accumulate more fat and produce higher levels of reactive oxygen species (ROS) than HepG2 cells in monocultures. As well, higher levels of inflammatory cytokines and chemokines (IL-8, IL-6, MIP-1α, etc.) were produced in this triculture compared to monocultures. In addition, in all LX-2 monocultures and cocultures, exposure to the activating mixture increased markers of fibrosis. A major strength of our triculture system is that it makes possible the simultaneous monitoring of 4 main features of NASH, i.e., steatosis, oxidative stress, inflammation and fibrosis. Screening potential modulators that may reduce steatosis in HepG2 cells revealed the protective effects of the isoalkaloid, berberine. Tested using this novel triculture assay, treatment with 5 µM berberine decreased steatosis and ROS in HepG2 hepatocytes, reduced inflammatory cytokine production and inhibited collagen production from LX-2 cells. Conclusion: This simple triculture model recapitulates the main features of NAFLD/NASH and should be useful for high-throughput preclinical drug discovery. In this model, berberine showed promising results in decreasing steatosis and ROS and protection against fibrosis.
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Affiliation(s)
| | | | | | | | - Ingrid Elisia
- Terry Fox Laboratory, BC Cancer Research Institute, Vancouver, BC, Canada
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Bahari H, Rafiei H, Goudarzi K, Omidian K, Asbaghi O, Kolbadi KSH, Naderian M, Hosseini A. The effects of pomegranate consumption on inflammatory and oxidative stress biomarkers in adults: a systematic review and meta-analysis. Inflammopharmacology 2023; 31:2283-2301. [PMID: 37507609 DOI: 10.1007/s10787-023-01294-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023]
Abstract
BACKGROUND Several studies have shown the effects of pomegranate on oxidative stress and inflammation biomarkers, while some studies showed no effects of pomegranate on these biomarkers. Therefore, we aimed to evaluate the effects of pomegranate consumption on C-reactive protein (CRP), interlukin-6 (IL-6), tumor necrosis factor α (TNF-α), total antioxidant capacity (TAC), and malondialdehyde (MDA) in adults. METHODS A systematic literature search was performed using databases, including PubMed, Web of Science, and Scopus, up to May 2023 to identify eligible randomized controlled trials (RCTs). Heterogeneity tests of the included trials were performed using the I2 statistic. Random effects models were assessed based on the heterogeneity tests, and pooled data were determined as the weighted mean difference with a 95% confidence interval. RESULTS Of 3811 records, 33 eligible RCTs were included in the current study. Our meta-analysis of the pooled findings showed that pomegranate consumption significantly reduced CRP (WMD: -0.50 mg/l; 95% CI -0.79 to -0.20; p = 0.001), IL-6 (WMD: -1.24 ng/L 95% CI -1.95 to -0.54; p = 0.001), TNF-α (WMD: -1.96 pg/ml 95%CI -2.75 to -1.18; p < 0.001), and MDA (WMD: -0.34 nmol/ml 95%CI -0.42 to -0.25; p < 0.001). Pooled analysis of 13 trials revealed that pomegranate consumption led to a significant increase in TAC (WMD: 0.26 mmol/L 95%CI 0.03 to 0.49; p = 0.025). CONCLUSION Overall, the results demonstrated that pomegranate consumption has beneficial effects on oxidative stress and inflammatory biomarkers in adults. Therefore, pomegranate can be consumed as an effective dietary approach to attenuate oxidative stress and inflammation in patients with cardiovascular diseases. PROSPERO REGISTRATION CODE CRD42023406684.
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Affiliation(s)
- Hossein Bahari
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Rafiei
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada
| | - Kian Goudarzi
- Faculty of Medicine, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Kosar Omidian
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada
| | - Omid Asbaghi
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Moslem Naderian
- Department of Pharmacognosy, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.
- Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj, Iran.
| | - Ali Hosseini
- Department of Pharmacognosy, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.
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Clifford MN, King LJ, Kerimi A, Pereira-Caro MG, Williamson G. Metabolism of phenolics in coffee and plant-based foods by canonical pathways: an assessment of the role of fatty acid β-oxidation to generate biologically-active and -inactive intermediates. Crit Rev Food Sci Nutr 2022; 64:3326-3383. [PMID: 36226718 DOI: 10.1080/10408398.2022.2131730] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
ω-Phenyl-alkenoic acids are abundant in coffee, fruits, and vegetables. Along with ω-phenyl-alkanoic acids, they are produced from numerous dietary (poly)phenols and aromatic amino acids in vivo. This review addresses how phenyl-ring substitution and flux modulates their gut microbiota and endogenous β-oxidation. 3',5'-Dihydroxy-derivatives (from alkyl-resorcinols, flavanols, proanthocyanidins), and 4'-hydroxy-phenolic acids (from tyrosine, p-coumaric acid, naringenin) are β-oxidation substrates yielding benzoic acids. In contrast, 3',4',5'-tri-substituted-derivatives, 3',4'-dihydroxy-derivatives and 3'-methoxy-4'-hydroxy-derivatives (from coffee, tea, cereals, many fruits and vegetables) are poor β-oxidation substrates with metabolism diverted via gut microbiota dehydroxylation, phenylvalerolactone formation and phase-2 conjugation, possibly a strategy to conserve limited pools of coenzyme A. 4'-Methoxy-derivatives (citrus fruits) or 3',4'-dimethoxy-derivatives (coffee) are susceptible to hepatic "reverse" hydrogenation suggesting incompatibility with enoyl-CoA-hydratase. Gut microbiota-produced 3'-hydroxy-4'-methoxy-derivatives (citrus fruits) and 3'-hydroxy-derivatives (numerous (poly)phenols) are excreted as the phenyl-hydracrylic acid β-oxidation intermediate suggesting incompatibility with hydroxy-acyl-CoA dehydrogenase, albeit with considerable inter-individual variation. Further investigation is required to explain inter-individual variation, factors determining the amino acid to which C6-C3 and C6-C1 metabolites are conjugated, the precise role(s) of l-carnitine, whether glycine might be limiting, and whether phenolic acid-modulation of β-oxidation explains how phenolic acids affect key metabolic conditions, such as fatty liver, carbohydrate metabolism and insulin resistance.
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Affiliation(s)
- Michael N Clifford
- School of Bioscience and Medicine, University of Surrey, Guildford, UK
- Department of Nutrition, Dietetics and Food, Monash University, Clayton, Australia
| | - Laurence J King
- School of Bioscience and Medicine, University of Surrey, Guildford, UK
| | - Asimina Kerimi
- Department of Nutrition, Dietetics and Food, Monash University, Clayton, Australia
| | - Maria Gema Pereira-Caro
- Department of Food Science and Health, Instituto Andaluz de Investigacion y Formacion Agraria Pesquera Alimentaria y de la Produccion Ecologica, Sevilla, Spain
| | - Gary Williamson
- Department of Nutrition, Dietetics and Food, Monash University, Clayton, Australia
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Wang X, Li X, Liu Y, Jiang X, Wu L, Liu R, Jin R, Zhou N, Cao C, Hu X, Xu B, Tong X, Bai W, Bai S. Cyanidin-3-Ο-glucoside supplementation in cryopreservation medium improves human sperm quality. Andrologia 2022; 54:e14493. [PMID: 35671952 DOI: 10.1111/and.14493] [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: 02/20/2022] [Revised: 04/16/2022] [Accepted: 05/24/2022] [Indexed: 11/29/2022] Open
Abstract
Currently, the cryopreservation of human spermatozoa must overcome the adverse effects of excessive oxidation. In this study, we aimed to evaluate the effect of supplementation of cryopreservation medium with cyanidin-3-Ο-glucoside (C3G) on sperm quality. Semen samples were obtained from men with normozoospermia according to WHO criteria (n = 39). The sperm parameter values were compared after cryopreservation in medium supplemented with and without C3G.Compared with the control group (without additive), low doses (50 μM and 100 μM) of C3G improved sperm viability and motility and decreased the reactive oxygen species (ROS) of spermatozoa, while high doses (200 μM) of C3G did not obviously enhance sperm quality. The amount of DNA fragmentation index (DFI) and high DNA stainability (HDS) after freezing were higher in the control group than in the C3G supplementation groups. Low-concentration C3G supplementation (50 μM) was negatively correlated with sperm ROS levels (r = -0.2, p = 0.03). Collectively, our findings suggest that C3G could be an efficient semen cryoprotectant that ameliorates oxidative stress in human sperm during cryopreservation.
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Affiliation(s)
- Xiaohan Wang
- Reproductive and Genetic Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
| | - Xusheng Li
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, People's Republic of China
| | - Yixun Liu
- Department of Urology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
| | - Xiaohua Jiang
- Reproductive and Genetic Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
| | - Limin Wu
- Reproductive and Genetic Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
| | - Ran Liu
- Reproductive and Genetic Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
| | - Rentao Jin
- Reproductive and Genetic Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
| | - Naru Zhou
- Reproductive and Genetic Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
| | - Cheng Cao
- Reproductive and Genetic Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
| | - Xuechun Hu
- Department of Urology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
| | - Bo Xu
- Reproductive and Genetic Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
| | - Xianhong Tong
- Reproductive and Genetic Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
| | - Weibin Bai
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, People's Republic of China
| | - Shun Bai
- Reproductive and Genetic Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, People's Republic of China
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Wu G, Fan G, Zhou J, Liu X, Wu C, Wang Y. Structure and main polyphenols in the haze of blackberry wine. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111821] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Pietrzyk N, Zakłos-Szyda M, Koziołkiewicz M, Podsędek A. Viburnum opulus L. fruit phenolic compounds protect against FFA-induced steatosis of HepG2 cells via AMPK pathway. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104437] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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Pamidimukkala K, Rani Inala M. Amalgamation of quercetin with anastrozole and capecitabine: A novel combination to treat breast and colon cancers – An in vitro study. J Cancer Res Ther 2021; 19:S93-S105. [PMID: 37147989 DOI: 10.4103/jcrt.jcrt_599_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Context Globally, cancer stands as the principle cause of mortality and immediate attention on its treatment options is required. Natural compounds stay at first priority in encountering novel therapeutics without adverse effects. Aim The aim of the study is to extract flavonol quercetin from leafy vegetables of Anethum graveolens L. and Raphanus sativus L. and find out its potential in combination with drugs used for chemotherapy to reduce the adverse effects of drugs. Settings and Design Observational study. Materials And Methods Column chromatography is used for quercetin extraction and anticancer activity of quercetin + anastrozole and quercetin + capecitabine were determined by (4, 5-dimethylthiazol-2-yl)-2, 5-diphenyl tetrazolium bromide assay (MTT), apoptosis assay, cell cycle analysis, mitochondrial membrane potential, and caspase 3 expression. Statistical Analysis Used Cytotoxic assay results were assessed by mean, standard deviation and ANOVA; and results were compared for determining its significance. Results The results noted that quercetin at very less concentration (16 and 31 μg/ml on Michigan Cancer Foundation-7 and 43 and 46 μg/ml on COLO 320) in combination with anastrozole and capecitabine was able to control the growth of cells, increase cell death, arrest cell cycle, and induce mitochondrial depolarization and expression of caspase 3. Conclusions The natural compound used in the present study is effective in treating breast and colon cancer at minimal concentrations in combination with the drugs. This combinational treatment appears to be reported for the first time in the present study.
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Song J, He Y, Luo C, Feng B, Ran F, Xu H, Ci Z, Xu R, Han L, Zhang D. New progress in the pharmacology of protocatechuic acid: A compound ingested in daily foods and herbs frequently and heavily. Pharmacol Res 2020; 161:105109. [PMID: 32738494 DOI: 10.1016/j.phrs.2020.105109] [Citation(s) in RCA: 105] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 07/21/2020] [Accepted: 07/21/2020] [Indexed: 12/13/2022]
Abstract
Protocatechuic acid is a natural phenolic acid, which widely exists in our daily diet and herbs. It is also one of the main metabolites of complex polyphenols, such as anthocyanins and proanthocyanins. In recent years, a large number of studies on the pharmacological activities of protocatechuic acid have emerged. Protocatechuic acid has a wide range of pharmacological activities including antioxidant, anti-inflammatory, neuroprotective, antibacterial, antiviral, anticancer, antiosteoporotic, analgesia, antiaging activties; protection from metabolic syndrome; and preservation of liver, kidneys, and reproductive functions. Pharmacokinetic studies showed that the absorption and elimination rate of protocatechuic acid are faster, with glucuronidation and sulfation being the major metabolic pathways. However, protocatechuic acid displays a dual-directional regulatory effect on some pharmacological activities. When the concentration is very high, it can inhibit cell proliferation and reduce survival rate. This review aims to comprehensively summarize the pharmacology, pharmacokinetics, and toxicity of protocatechuic acid with emphasis on its pharmacological activities discovered in recent 5 years, so as to provide more up-to-date and thorough information for the preclinical and clinical research of protocatechuic acid in the future. Moreover, it is hoped that the clinical application of protocatechuic acid can be broadened, giving full play to its characteristics of rich sources, low toxicity and wide pharmacological activites.
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Affiliation(s)
- Jiao Song
- Pharmacy College, Chengdu University of Traditional Chinese Medicine, Key Laboratory Breeding Base of Systematic Research and Utilization on Chinese Meterial Medical Resources Co-founded by Sichuan Province and Ministry of Science and Technology, Chengdu 611137, PR China
| | - Yanan He
- Pharmacy College, Chengdu University of Traditional Chinese Medicine, Key Laboratory Breeding Base of Systematic Research and Utilization on Chinese Meterial Medical Resources Co-founded by Sichuan Province and Ministry of Science and Technology, Chengdu 611137, PR China
| | - Chuanhong Luo
- Pharmacy College, Chengdu University of Traditional Chinese Medicine, Key Laboratory Breeding Base of Systematic Research and Utilization on Chinese Meterial Medical Resources Co-founded by Sichuan Province and Ministry of Science and Technology, Chengdu 611137, PR China
| | - Bi Feng
- Pharmacy College, Chengdu University of Traditional Chinese Medicine, Key Laboratory Breeding Base of Systematic Research and Utilization on Chinese Meterial Medical Resources Co-founded by Sichuan Province and Ministry of Science and Technology, Chengdu 611137, PR China
| | - Fei Ran
- Pharmacy College, Chengdu University of Traditional Chinese Medicine, Key Laboratory Breeding Base of Systematic Research and Utilization on Chinese Meterial Medical Resources Co-founded by Sichuan Province and Ministry of Science and Technology, Chengdu 611137, PR China
| | - Hong Xu
- Chengdu Yongkang Pharmaceutical Co., Ltd., Chengdu 610041, PR China
| | - Zhimin Ci
- Pharmacy College, Chengdu University of Traditional Chinese Medicine, Key Laboratory Breeding Base of Systematic Research and Utilization on Chinese Meterial Medical Resources Co-founded by Sichuan Province and Ministry of Science and Technology, Chengdu 611137, PR China
| | - Runchun Xu
- Pharmacy College, Chengdu University of Traditional Chinese Medicine, Key Laboratory Breeding Base of Systematic Research and Utilization on Chinese Meterial Medical Resources Co-founded by Sichuan Province and Ministry of Science and Technology, Chengdu 611137, PR China
| | - Li Han
- Pharmacy College, Chengdu University of Traditional Chinese Medicine, Key Laboratory Breeding Base of Systematic Research and Utilization on Chinese Meterial Medical Resources Co-founded by Sichuan Province and Ministry of Science and Technology, Chengdu 611137, PR China.
| | - Dingkun Zhang
- Pharmacy College, Chengdu University of Traditional Chinese Medicine, Key Laboratory Breeding Base of Systematic Research and Utilization on Chinese Meterial Medical Resources Co-founded by Sichuan Province and Ministry of Science and Technology, Chengdu 611137, PR China.
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Higher flavonoid intake is associated with a lower progression risk of non-alcoholic fatty liver disease in adults: a prospective study. Br J Nutr 2020; 125:460-470. [PMID: 32713378 DOI: 10.1017/s0007114520002846] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Flavonoid-rich foods have shown a beneficial effect against non-alcoholic fatty liver disease (NAFLD) in short-term randomised trials. It is uncertain whether the usual dietary intake of flavonoids may benefit patients with NAFLD. The present study evaluated the association between the usual intake of flavonoids and the risk of progression in NAFLD. The prospective study included 2694 adults from the Guangzhou Nutrition and Health Study. Face-to-face interviews using a seventy-nine-item FFQ were administered to assess habitual dietary flavonoid intake, while abdominal ultrasonography was conducted to evaluate the presence and degree of NAFLD, with measurements conducted 3 years apart. After adjustment for potential confounders, higher flavonoid intakes were gradely associated with reduced risks of worsen NAFLD status. The relative risks of worsening (v. non-worsening) NAFLD in the highest (v. lowest) quintile were 0·71 (95 % CI 0·54, 0·93) for total flavonoids, 0·74 (95 % CI 0·57, 0·95) for flavanones, 0·74 (95 % CI 0·56, 0·96) for flavan-3-ols, 0·90 (95 % CI 0·68, 1·18) for flavonols, 0·73 (95 % CI 0·56, 0·93) for flavones, 0·79 (95 % CI 0·61, 1·02) for isoflavones and 0·74 (95 % CI 0·57, 0·96) for anthocyanins. An L-shaped relationship was observed between total flavonoid intake and the risk of NAFLD progression. Path analyses showed that the association between flavonoids and NAFLD progression was mediated by decreases in serum cholesterol and homeostasis model assessment of insulin resistance. This prospective study showed that higher flavonoid intake was associated with a lower risk of NAFLD progression in the elderly overweight/obese Chinese population.
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Fang P, Liang J, Jiang X, Fang X, Wu M, Wei X, Yang W, Hou W, Zhang Q. Quercetin Attenuates d-GaLN-Induced L02 Cell Damage by Suppressing Oxidative Stress and Mitochondrial Apoptosis via Inhibition of HMGB1. Front Pharmacol 2020; 11:608. [PMID: 32431618 PMCID: PMC7214928 DOI: 10.3389/fphar.2020.00608] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 04/17/2020] [Indexed: 01/18/2023] Open
Abstract
High mobility group box-1 (HMGB1) plays an important role in various liver injuries. In the case of acute liver injury, it leads to aseptic inflammation and other reactions, and also regulates specific cell death responses in chronic liver injury. HMGB1 has been demonstrated to be a good therapeutic target for treating liver failure. Quercetin (Que), as an antioxidant, is a potential phytochemical with hepatocyte protection and is also considered to be an inhibitor of HMGB1. However, the mechanism of its hepatoprotective effects remains to be characterized. The present study explored whether the hepatoprotective effect of Que antagonizes HMGB1, and subsequent molecular signaling events. Our results indicated that Que protects L02 cells from d-galactosamine (d-GaLN)-induced cellular damage by reducing intracellular reactive oxygen species (ROS) production and apoptotic responses in the mitochondrial pathway. Immunofluorescence and Western blot assays showed that HMGB1 was involved in d-GaLN-induced L02 cell damage. Further research showed that after transfection with HMGB1 short hairpin RNA (shRNA), cell viability was improved, and intracellular ROS production and apoptosis were suppressed. When co-treated with Que, the expression of HMGB1 was decreased significantly, the expression of proteins in the corresponding signal pathway were further reduced, and the production of ROS and apoptosis were further suppressed. Molecular docking also indicated the binding of Que and HMGB1. Taken together, these results indicate that Que significantly improves d-GaLN-induced cellular damage by inhibiting oxidative stress and mitochondrial apoptosis via inhibiting HMGB1.
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Affiliation(s)
- Peng Fang
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Jiajun Liang
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Xuejiao Jiang
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Xian Fang
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Mengli Wu
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Xiaoyi Wei
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Wenlong Yang
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Weixin Hou
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Qiuyun Zhang
- Beijing Key Laboratory of TCM Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
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An J, Liu J, Liang Y, Ma Y, Chen C, Cheng Y, Peng P, Zhou N, Zhang R, Addy M, Chen P, Liu Y, Huang G, Ren D, Ruan R. Characterization, bioavailability and protective effects of phenolic-rich extracts from almond hulls against pro-oxidant induced toxicity in Caco-2 cells. Food Chem 2020; 322:126742. [PMID: 32305872 DOI: 10.1016/j.foodchem.2020.126742] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 03/17/2020] [Accepted: 04/02/2020] [Indexed: 02/08/2023]
Abstract
Almond hulls, the main by-product of almond production, are considered a valuable source of bioactive phenolic compounds. This study aimed to characterize the phenolic composition, bioavailability of the phenolic-rich extracts from almond hulls (PEAH), and their protective effect on oxidative stressed Caco-2 cells induced by tert-butylhydroperoxide (t-BOOH). The ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS) analysis detected 11 phenolic compounds in the PEAH with high total phenolic content and antioxidant activity. Oxidative Caco-2 cell damage was reduced by PEAH, especially at 5 μg/mL, through scavenging reactive oxygen species (ROS), modulating the cellular endogenous antioxidant system and cell redox at a predictable status. Also, in vitro digestion influenced the phenolic compounds' composition and antioxidant power of PEAH. These results suggested that almond hulls, rich in phenolic compounds, can meliorate the oxidative stressed Caco-2 cells and restore its impaired redox balance, and ultimately improve health benefits.
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Affiliation(s)
- Jun An
- Beijing Key Laboratory of Forest Food Processing and Safety, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China; Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul 55108, USA
| | - Juer Liu
- Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul 55108, USA; Department of Food Science and Nutrition, University of Minnesota, St. Paul 55108, MN, USA
| | - Yuying Liang
- Department of Veterinary and Biomedical Sciences, University of Minnesota, Twin Cities, MN 55108, USA
| | - Yiwei Ma
- Department of Food Science and Nutrition, University of Minnesota, St. Paul 55108, MN, USA
| | - Chi Chen
- Department of Food Science and Nutrition, University of Minnesota, St. Paul 55108, MN, USA
| | - Yanling Cheng
- Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul 55108, USA
| | - Peng Peng
- Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul 55108, USA
| | - Nan Zhou
- Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul 55108, USA
| | - Renchuan Zhang
- Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul 55108, USA
| | - Min Addy
- Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul 55108, USA
| | - Paul Chen
- Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul 55108, USA
| | - Yuhuan Liu
- State Key Laboratory of Food Science and Technology, and Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang University, Jiangxi 330047, China
| | - Guangwei Huang
- Almond Board of California, 1150 9th Street, Suite 1500, Modesto, CA 95354, USA
| | - Difeng Ren
- Beijing Key Laboratory of Forest Food Processing and Safety, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China.
| | - Roger Ruan
- Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul 55108, USA; Department of Food Science and Nutrition, University of Minnesota, St. Paul 55108, MN, USA.
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