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Jia R, Hou Y, Zhang L, Li B, Zhu J. Effects of Berberine on Lipid Metabolism, Antioxidant Status, and Immune Response in Liver of Tilapia ( Oreochromis niloticus) under a High-Fat Diet Feeding. Antioxidants (Basel) 2024; 13:548. [PMID: 38790653 PMCID: PMC11117941 DOI: 10.3390/antiox13050548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Revised: 04/28/2024] [Accepted: 04/28/2024] [Indexed: 05/26/2024] Open
Abstract
Berberine, a natural alkaloid found abundantly in various medicinal plants, exhibits antioxidative, anti-inflammatory, and lipid metabolism-regulatory properties. Nonetheless, its protective effects and the molecular mechanisms underlying liver injury in fish have not been fully elucidated. The aims of this study were to investigate the antioxidative, anti-inflammatory, and lipid metabolism-regulating effects of berberine against high-fat diet (HFD)-induced liver damage and to clarify the underlying molecular mechanisms. Tilapia were fed diets containing two doses of berberine (50 and 100 mg/kg diet) alongside high fat for 60 days. The results showed that berberine treatments (50 and/or 100 mg/kg) significantly reduced elevated aminotransferases, triglycerides (TG), total cholesterol (TC), and low-density lipoprotein cholesterol (LDL-c) in the plasma. In the liver, berberine treatments significantly increased the expression of peroxisome proliferator-activated receptor α (pparα) and carnitine palmitoyltransferase 1 (cpt-1) genes, leading to a reduction in lipid accumulation. Meanwhile, berberine treatment suppressed lipid peroxidation formation and enhanced antioxidant capacity. Berberine upregulated the mRNA levels of erythroid 2-related factor 2 (nrf2) and its downstream genes including heme oxygenase 1 (ho-1) and glutathione-S-transferase (gstα). Additionally, berberine attenuated the inflammation by inhibiting the expression of toll-like receptor 2 (tlr2), myeloid differential protein-88 (myd88), relb, and inflammatory cytokines such as interleukin-1β (il-1β), tumor necrosis factor-α (tnf-α), and il-8. In summary, this study suggested that berberine offers protection against HFD-induced liver damage in tilapia via regulating lipid metabolism, antioxidant status, and immune response. This protective effect may be attributed to the modulation of the Nrf2, TLR2/MyD88/NF-κB, and PPARα signaling pathways.
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Affiliation(s)
- Rui Jia
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; (R.J.); (Y.H.); (L.Z.)
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
| | - Yiran Hou
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; (R.J.); (Y.H.); (L.Z.)
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
| | - Liqiang Zhang
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; (R.J.); (Y.H.); (L.Z.)
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
| | - Bing Li
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; (R.J.); (Y.H.); (L.Z.)
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
| | - Jian Zhu
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; (R.J.); (Y.H.); (L.Z.)
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
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Zhong CC, Zhao T, Hogstrand C, Song CC, Zito E, Tan XY, Xu YC, Song YF, Wei XL, Luo Z. Copper induces liver lipotoxicity disease by up-regulating Nrf2 expression via the activation of MTF-1 and inhibition of SP1/Fyn pathway. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166752. [PMID: 37182554 DOI: 10.1016/j.bbadis.2023.166752] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 04/19/2023] [Accepted: 05/09/2023] [Indexed: 05/16/2023]
Abstract
Excessive copper (Cu) intake leads to hepatic lipotoxicity disease, which has adverse effects on health, but the underlying mechanism is unclear. We found that Cu increased lipotoxicity by promoting Nrf2 recruitment to the ARE site in the promoters of five lipogenic genes (g6pd, 6pgd, me, icdh and pparγ). We also found that Cu affected the Nrf2 expression via different pathways: metal regulatory transcription factor 1 (MTF-1) mediated the Cu-induced Nrf2 transcriptional activation; Cu also enhanced the expression of Nrf2 by inhibiting the SP1 expression, which was achieved by inhibiting the negative regulator Fyn of Nrf2. These promoted the enrichment of Nrf2 in the nucleus and ultimately affected lipotoxicity. Thus, for the first time, we elucidated that Cu induced liver lipotoxicity disease by up-regulating Nrf2 expression via the MTF-1 activation and the inhibition of SP1/Fyn pathway. Our study elucidates the Cu-associated obesity and NAFLD for fish and possibly humans.
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Affiliation(s)
- Chong-Chao Zhong
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan 430070, Hubei Province, China
| | - Tao Zhao
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan 430070, Hubei Province, China
| | - Christer Hogstrand
- Diabetes and Nutritional Sciences Division, School of Medicine, King's College London, London, UK
| | - Chang-Chun Song
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan 430070, Hubei Province, China
| | - Ester Zito
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy; Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Xiao-Ying Tan
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan 430070, Hubei Province, China
| | - Yi-Chuang Xu
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan 430070, Hubei Province, China
| | - Yu-Feng Song
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan 430070, Hubei Province, China
| | - Xiao-Lei Wei
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan 430070, Hubei Province, China
| | - Zhi Luo
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan 430070, Hubei Province, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, Shandong Province, China.
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Yan JK, Wang C, Chen TT, Li L, Liu X, Li L. Structural characteristics and ameliorative effect of a polysaccharide from Corbicula fluminea industrial distillate against acute liver injury induced by CCl 4 in mice. Int J Biol Macromol 2023; 227:391-404. [PMID: 36543293 DOI: 10.1016/j.ijbiomac.2022.12.138] [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: 08/31/2022] [Revised: 11/20/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
Corbicula fluminea distillate as an important industrial by-product of C. fluminea during steaming process is rich in amino acids, proteins and polysaccharides, showing potential hepatoprotective effect. In this study, a polysaccharide (CFDP) was obtained from C. fluminea distillate by three-phase partitioning combined with (NH4)2SO4 precipitation at a saturation of 60 %. The structural characteristics, antioxidant activity in vitro, and hepatoprotection against mice CCl4-induced acute liver damage of CFDP were studied. Results demonstrated that CFDP was a water-soluble homogenous polysaccharide predominantly comprising glucose (>98 %), with a weight-average molecular weight of 1.4 × 107 Da, and exhibiting potent antioxidant benefits in vitro. CFDP had a backbone of (1 → 4)-α-d-glucopyranosyl (Glcp) and a small amount of (1 → 4, 6)-α-D-Glcp. The branch formed at C-6 comprised by (1→)-α-D-Glcp and (1→)-α-D-N-acetylglucosamine. CFDP possessed excellent hepatoprotective activity against acute liver damage caused by CCl4 in mice, mainly by ameliorating weight reduction and organ injures, alleviating hepatic function and serum lipid metabolism, suppressing oxidative stress and inflammatory responses, as directly verified by histopathological examination. Moreover, CFDP improved gut microbiota by up-regulating the relative abundance of total bacteria and probiotics such as Firmicutes, Bacteroidete, Rumminococcaceae, Lactobacillaceae, accompanied by promoting short chain fatty acid production. Therefore, our findings indicated that CFDP can be developed as a healthy food supplement for the prevention of chemical livery injury.
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Affiliation(s)
- Jing-Kun Yan
- Engineering Research Center of Health Food Design & Nutrition Regulation, Dongguan Key Laboratory of Typical Food Precision Design, China National Light Industry Key Laboratory of Healthy Food Development and Nutrition Regulation, School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China; School of Food & Biological Engineering, Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China.
| | - Chun Wang
- School of Food & Biological Engineering, Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China
| | - Ting-Ting Chen
- School of Food & Biological Engineering, Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China
| | - Longqing Li
- Engineering Research Center of Health Food Design & Nutrition Regulation, Dongguan Key Laboratory of Typical Food Precision Design, China National Light Industry Key Laboratory of Healthy Food Development and Nutrition Regulation, School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China
| | - Xiaozhen Liu
- Engineering Research Center of Health Food Design & Nutrition Regulation, Dongguan Key Laboratory of Typical Food Precision Design, China National Light Industry Key Laboratory of Healthy Food Development and Nutrition Regulation, School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China
| | - Lin Li
- Engineering Research Center of Health Food Design & Nutrition Regulation, Dongguan Key Laboratory of Typical Food Precision Design, China National Light Industry Key Laboratory of Healthy Food Development and Nutrition Regulation, School of Life and Health Technology, Dongguan University of Technology, Dongguan 523808, China.
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Zieritz A, Sousa R, Aldridge DC, Douda K, Esteves E, Ferreira‐Rodríguez N, Mageroy JH, Nizzoli D, Osterling M, Reis J, Riccardi N, Daill D, Gumpinger C, Vaz AS. A global synthesis of ecosystem services provided and disrupted by freshwater bivalve molluscs. Biol Rev Camb Philos Soc 2022; 97:1967-1998. [PMID: 35770724 PMCID: PMC9545824 DOI: 10.1111/brv.12878] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 05/23/2022] [Accepted: 05/25/2022] [Indexed: 11/29/2022]
Abstract
Identification of ecosystem services, i.e. the contributions that ecosystems make to human well-being, has proven instrumental in galvanising public and political support for safeguarding biodiversity and its benefits to people. Here we synthesise the global evidence on ecosystem services provided and disrupted by freshwater bivalves, a heterogenous group of >1200 species, including some of the most threatened (in Unionida) and invasive (e.g. Dreissena polymorpha) taxa globally. Our systematic literature review resulted in a data set of 904 records from 69 countries relating to 24 classes of provisioning (N = 189), cultural (N = 491) and regulating (N = 224) services following the Common International Classification of Ecosystem Services (CICES). Prominent ecosystem services included (i) the provisioning of food, materials and medicinal products, (ii) knowledge acquisition (e.g. on water quality, past environments and historical societies), ornamental and other cultural contributions, and (iii) the filtration, sequestration, storage and/or transformation of biological and physico-chemical water properties. About 9% of records provided evidence for the disruption rather than provision of ecosystem services. Synergies and trade-offs of ecosystem services were observed. For instance, water filtration by freshwater bivalves can be beneficial for the cultural service 'biomonitoring', while negatively or positively affecting food consumption or human recreation. Our evidence base spanned a total of 91 genera and 191 species, dominated by Unionida (55% of records, 76% of species), Veneroida (21 and 9%, respectively; mainly Corbicula spp.) and Myoida (20 and 4%, respectively; mainly Dreissena spp.). About one third of records, predominantly from Europe and the Americas, related to species that were non-native to the country of study. The majority of records originated from Asia (35%), with available evidence for 23 CICES classes, as well as Europe (29%) and North America (23%), where research was largely focused on 'biomonitoring'. Whilst the earliest record (from 1949) originated from North America, since 2000, annual output of records has increased rapidly in Asia and Europe. Future research should focus on filling gaps in knowledge in lesser-studied regions, including Africa and South America, and should look to provide a quantitative valuation of the socio-economic costs and benefits of ecosystem services shaped by freshwater bivalves.
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Affiliation(s)
- Alexandra Zieritz
- School of GeographyUniversity of NottinghamUniversity Park, Sir Clive Granger BuildingNG7 2RDNottinghamUK
| | - Ronaldo Sousa
- CBMA – Centre of Molecular and Environmental Biology, Department of BiologyUniversity of MinhoCampus Gualtar4710‐057BragaPortugal
| | - David C. Aldridge
- Department of ZoologyUniversity of CambridgeDowning StreetCambridgeCB2 3EJUK
| | - Karel Douda
- Department of Zoology and FisheriesCzech University of Life Sciences PragueKamýcká129PragueCzech Republic
| | - Eduardo Esteves
- Departamento de Engenharia Alimentar, Instituto Superior de Engenharia and CCMAR Centre of Marine SciencesUniversidade do AlgarveEstr. da Penha8005‐139FaroPortugal
| | - Noé Ferreira‐Rodríguez
- Departamento de Ecoloxía e Bioloxía Animal, Facultade de BioloxíaUniversidade de VigoCampus As Lagoas – Marcosende36310VigoSpain
| | - Jon H. Mageroy
- Norwegian Institute of Nature Research, OsloSognsveien 680855OsloNorway
| | - Daniele Nizzoli
- Department of Chemistry, Life Sciences and Environmental SustainabilityUniversity of ParmaViale delle Scienze, 11/A43124ParmaItaly
| | - Martin Osterling
- Department of Environmental and Life Sciences – BiologyKarlstad UniversityUniversitetsgatan 2651 88KarlstadSweden
| | - Joaquim Reis
- Faculdade de Ciências da Universidade de LisboaMARE – Marine and Environmental Sciences CentreCampo Grande1749‐016LisbonPortugal
| | - Nicoletta Riccardi
- CNR‐IRSA Water Research InstituteCorso Tonolli, 5028922Verbania Pallanza (VB)Italy
| | - Daniel Daill
- blattfisch e.U. – Consultants in Aquatic Ecology and EngineeringGabelsbergerstraße 74600WelsAustria
| | - Clemens Gumpinger
- blattfisch e.U. – Consultants in Aquatic Ecology and EngineeringGabelsbergerstraße 74600WelsAustria
| | - Ana Sofia Vaz
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de VairãoUniversidade do Porto4485‐661VairãoPortugal
- Departamento de Biologia, Faculdade de CiênciasUniversidade do Porto4099‐002PortoPortugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão4485‐661VairãoPortugal
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Preparation, physicochemical and structural characterizations, and bioactivities of polysaccharides from Corbicula fluminea industrial distillate. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101708] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Huang TH, Ke CH, Chen CC, Chuang CH, Liao KW, Shiao YH, Lin CS. The Effects of Freshwater Clam (Corbicula fluminea) Extract on Serum Tumor Necrosis Factor-Alpha (TNF-α) in Prediabetic Patients in Taiwan. Mar Drugs 2022; 20:md20040261. [PMID: 35447934 PMCID: PMC9027770 DOI: 10.3390/md20040261] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 03/26/2022] [Accepted: 04/06/2022] [Indexed: 02/01/2023] Open
Abstract
Freshwater clam extract (FCE) is a functional food that regulates the immune system and has been demonstrated in numerous studies to display desirable anti–tumor necrosis factor-alpha (TNF-α) responses. In addition, excess TNF-α production is positively associated with type 2 diabetes. However, few longitudinal clinical studies evaluating the efficiency and toxicity of FCE are available. This article reports that patients with prediabetes who received FCE had a desirable outcome of a reduction in serum TNF-α for a long period. This was a double-blind, randomized, parallel clinical trial conducted using FCE intervention and placebo groups, and 36 patients with prediabetes were enrolled. Two grams of FCE or placebo was consumed daily for 180 consecutive days. The serum of the participants was collected at four time points (0M: before the intervention; 3M: after 3 months of intervention; 6M: after 6 months of intervention; 12M: 6 months after cessation of intervention at 6M). A serum TNF-α concentration higher than 4.05 pg/mL was defined as a cut-off value. FCE reduced serum TNF-α in all participants at 6M and 12M. Moreover, FCE significantly suppressed serum TNF-α concentrations at 6M and 12M and inhibited TNF-α release with time series in subjects with elevated TNF-α values. FCE intervention effectively reduced serum TNF-α and persistently sustained the effects for half a year in patients with prediabetes. Gas chromatography–mass spectrometry (GS-MS) analysis revealed that the major components of FCE were phytosterols and fatty acids, which exerted anti-inflammatory and anti-TNF-α abilities. Hence, FCE has the potential to be developed as a natural treatment for prediabetic patients in Taiwan.
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Affiliation(s)
- Tse-Hung Huang
- Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Keelung City 20401, Taiwan;
- School of Traditional Chinese Medicine, Chang Gung University, Taoyuan City 33302, Taiwan
- Graduate Institute of Integration of Western and Chinese Medicine Nursing, National Taipei University of Nursing and Health Sciences, Taipei City 23741, Taiwan
- Department & Graduate Institute of Chemical Engineering & Graduate Institute of Biochemical Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan
- Graduate Institute of Health Industry Technology, Chang Gung University of Science and Technology, Taoyuan City 33303, Taiwan
| | - Chiao-Hsu Ke
- Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, No. 1 Sec. 4 Roosevelt Rd., Taipei City 10617, Taiwan;
| | - Chin-Chang Chen
- Department of Anatomy, School of Medicine, China Medical University, Taichung City 40402, Taiwan;
| | - Cheng-Hsun Chuang
- Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, Hsinchu City 30068, Taiwan; (C.-H.C.); (K.-W.L.)
- Institute of Molecular Medicine and Bioengineering, National Yang Ming Chiao Tung University, Hsinchu City 30068, Taiwan
| | - Kuang-Wen Liao
- Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, Hsinchu City 30068, Taiwan; (C.-H.C.); (K.-W.L.)
- Institute of Molecular Medicine and Bioengineering, National Yang Ming Chiao Tung University, Hsinchu City 30068, Taiwan
- Drug Development and Value Creation Research Center, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Yi-Hsien Shiao
- Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Keelung City 20401, Taiwan;
- Correspondence: (Y.-H.S.); (C.-S.L.); Tel.: +886-224313131-2777 (Y.-H.S.); +886-233-661-286 (C.-S.L.)
| | - Chen-Si Lin
- Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, No. 1 Sec. 4 Roosevelt Rd., Taipei City 10617, Taiwan;
- Correspondence: (Y.-H.S.); (C.-S.L.); Tel.: +886-224313131-2777 (Y.-H.S.); +886-233-661-286 (C.-S.L.)
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Rebollo-Hernanz M, Aguilera Y, Martin-Cabrejas MA, Gonzalez de Mejia E. Phytochemicals from the Cocoa Shell Modulate Mitochondrial Function, Lipid and Glucose Metabolism in Hepatocytes via Activation of FGF21/ERK, AKT, and mTOR Pathways. Antioxidants (Basel) 2022; 11:antiox11010136. [PMID: 35052640 PMCID: PMC8772970 DOI: 10.3390/antiox11010136] [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: 12/13/2021] [Revised: 12/31/2021] [Accepted: 01/05/2022] [Indexed: 02/04/2023] Open
Abstract
The cocoa shell is a by-product that may be revalorized as a source of bioactive compounds to prevent chronic cardiometabolic diseases. This study aimed to investigate the phytochemicals from the cocoa shell as targeted compounds for activating fibroblast growth factor 21 (FGF21) signaling and regulating non-alcoholic fatty liver disease (NAFLD)-related biomarkers linked to oxidative stress, mitochondrial function, and metabolism in hepatocytes. HepG2 cells treated with palmitic acid (PA, 500 µmol L−1) were used in an NAFLD cell model. Phytochemicals from the cocoa shell (50 µmol L−1) and an aqueous extract (CAE, 100 µg mL−1) enhanced ERK1/2 phosphorylation (1.7- to 3.3-fold) and FGF21 release (1.4- to 3.4-fold) via PPARα activation. Oxidative stress markers were reduced though Nrf-2 regulation. Mitochondrial function (mitochondrial respiration and ATP production) was protected by the PGC-1α pathway modulation. Cocoa shell phytochemicals reduced lipid accumulation (53–115%) and fatty acid synthase activity (59–93%) and prompted CPT-1 activity. Glucose uptake and glucokinase activity were enhanced, whereas glucose production and phosphoenolpyruvate carboxykinase activity were diminished. The increase in the phosphorylation of the insulin receptor, AKT, AMPKα, mTOR, and ERK1/2 conduced to the regulation of hepatic mitochondrial function and energy metabolism. For the first time, the cocoa shell phytochemicals are proved to modulate FGF21 signaling. Results demonstrate the in vitro preventive effect of the phytochemicals from the cocoa shell on NAFLD.
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Affiliation(s)
- Miguel Rebollo-Hernanz
- Department of Agricultural Chemistry and Food Science, Universidad Autónoma de Madrid, 28049 Madrid, Spain; (M.R.-H.); (Y.A.); (M.A.M.-C.)
- Institute of Food Science Research, CIAL (UAM-CSIC), 28049 Madrid, Spain
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Yolanda Aguilera
- Department of Agricultural Chemistry and Food Science, Universidad Autónoma de Madrid, 28049 Madrid, Spain; (M.R.-H.); (Y.A.); (M.A.M.-C.)
- Institute of Food Science Research, CIAL (UAM-CSIC), 28049 Madrid, Spain
| | - Maria A. Martin-Cabrejas
- Department of Agricultural Chemistry and Food Science, Universidad Autónoma de Madrid, 28049 Madrid, Spain; (M.R.-H.); (Y.A.); (M.A.M.-C.)
- Institute of Food Science Research, CIAL (UAM-CSIC), 28049 Madrid, Spain
| | - Elvira Gonzalez de Mejia
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Correspondence: ; Tel.: +1-217-244-3196
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GAO J, ZHANG C, QIN X, CAO W, CHEN J, LI Y, ZHENG H, LIN H, CHEN Z. Hepatoprotective effect of clam (Corbicula fluminea) protein hydrolysate on alcohol-induced liver injury in mice and partial identification of a hepatoprotective peptide from the hydrolysate. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.61522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Jialong GAO
- Guangdong Ocean University, China; National Research and Development Branch Center for Shellfish Processing, China; Guangdong Provincial Key Laboratory of Aquatic Products Processing and Safety, China; Guangdong Province Engineering Laboratory for Marine Biological Products, China; Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, China; Dalian Polytechnic University, China
| | - Chaohua ZHANG
- Guangdong Ocean University, China; National Research and Development Branch Center for Shellfish Processing, China; Guangdong Provincial Key Laboratory of Aquatic Products Processing and Safety, China; Guangdong Province Engineering Laboratory for Marine Biological Products, China; Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, China; Dalian Polytechnic University, China
| | - Xiaoming QIN
- Guangdong Ocean University, China; National Research and Development Branch Center for Shellfish Processing, China; Guangdong Provincial Key Laboratory of Aquatic Products Processing and Safety, China; Guangdong Province Engineering Laboratory for Marine Biological Products, China; Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, China; Dalian Polytechnic University, China
| | - Wenhong CAO
- Guangdong Ocean University, China; National Research and Development Branch Center for Shellfish Processing, China; Guangdong Provincial Key Laboratory of Aquatic Products Processing and Safety, China; Guangdong Province Engineering Laboratory for Marine Biological Products, China; Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, China; Dalian Polytechnic University, China
| | - Jianping CHEN
- Guangdong Ocean University, China; National Research and Development Branch Center for Shellfish Processing, China; Guangdong Provincial Key Laboratory of Aquatic Products Processing and Safety, China; Guangdong Province Engineering Laboratory for Marine Biological Products, China; Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, China; Dalian Polytechnic University, China
| | - Yujin LI
- Ocean University of China, China
| | - Huina ZHENG
- Guangdong Ocean University, China; National Research and Development Branch Center for Shellfish Processing, China; Guangdong Provincial Key Laboratory of Aquatic Products Processing and Safety, China; Guangdong Province Engineering Laboratory for Marine Biological Products, China; Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, China; Dalian Polytechnic University, China
| | - Haisheng LIN
- Guangdong Ocean University, China; National Research and Development Branch Center for Shellfish Processing, China; Guangdong Provincial Key Laboratory of Aquatic Products Processing and Safety, China; Guangdong Province Engineering Laboratory for Marine Biological Products, China; Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, China; Dalian Polytechnic University, China
| | - Zhongqin CHEN
- Guangdong Ocean University, China; National Research and Development Branch Center for Shellfish Processing, China; Guangdong Provincial Key Laboratory of Aquatic Products Processing and Safety, China; Guangdong Province Engineering Laboratory for Marine Biological Products, China; Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, China; Dalian Polytechnic University, China
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The Effects of Freshwater Clam ( Corbicula fluminea) Extract on Activated Hepatic Stellate Cells. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:6065168. [PMID: 34804181 PMCID: PMC8604581 DOI: 10.1155/2021/6065168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 09/16/2021] [Accepted: 10/20/2021] [Indexed: 11/22/2022]
Abstract
Background The extract of freshwater clams has been used to protect the body against liver diseases in traditional folk medicine. This study aims at investigating the effects of freshwater clam extract on activated hepatic stellate cells (aHSCs), which are critical contributors to liver fibrosis. Methods The aHSCs used in this study were derived from hepatic stellate cells that were isolated and purified from the livers of male Wistar rats and then transformed into the activated phenotype by culturing on uncoated plastic dishes. Freshwater clam extract (CE) was collected after the outflow from the live freshwater clams in a water bath at 100°C for 60 min. The effects of CE on aHSCs were analyzed by MTT assay, flow cytometry, Oil Red O (ORO) staining, western blot, and real-time RT-PCR. Results The results indicated that CE suppressed the proliferation of aHSCs through G0/G1 cell cycle arrest by downregulating cyclin D1 and upregulating p27. The expression levels of a-SMA, collagen I, TGF-β, and TNF-α were inhibited in the CE-treated aHSCs. In addition, the CE treatment increased the lipid contents in aHSCs by promoting PPARγ expression. Furthermore, CE modulated the expression of ECM-related genes, i.e., by upregulating MMP-9 and downregulating TIMP-II. Conclusions These data revealed that CE could induce the deactivation of aHSCs. We therefore suggest that CE has potential as an adjuvant therapeutic agent against hepatic fibrosis.
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Zhao M, Chen S, Ji X, Shen X, You J, Liang X, Yin H, Zhao L. Current innovations in nutraceuticals and functional foods for intervention of non-alcoholic fatty liver disease. Pharmacol Res 2021; 166:105517. [PMID: 33636349 DOI: 10.1016/j.phrs.2021.105517] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 01/27/2021] [Accepted: 02/21/2021] [Indexed: 02/07/2023]
Abstract
As innovations in global agricultural production and food trading systems lead to major dietary shifts, high morbidity rates from non-alcoholic fatty liver disease (NAFLD), accompanied by elevated risk of lipid metabolism-related complications, has emerged as a growing problem worldwide. Treatment and prevention of NAFLD and chronic liver disease depends on the availability of safe, effective, and diverse therapeutic agents, the development of which is urgently needed. Supported by a growing body of evidence, considerable attention is now focused on interventional approaches that combines nutraceuticals and functional foods. In this review, we summarize the pathological progression of NAFLD and discuss the beneficial effects of nutraceuticals and the active ingredients in functional foods. We also describe the underlying mechanisms of these compounds in the intervention of NAFLD, including their effects on regulation of lipid homeostasis, activation of signaling pathways, and their role in gut microbial community dynamics and the gut-liver axis. In order to identify novel targets for treatment of lipid metabolism-related diseases, this work broadly explores the molecular mechanism linking nutraceuticals and functional foods, host physiology, and gut microbiota. Additionally, the limitations in existing knowledge and promising research areas for development of active interventions and treatments against NAFLD are discussed.
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Affiliation(s)
- Mengyao Zhao
- School of Biotechnology, State Key Laboratory of Bioreactor Engineering, R&D Center of Separation and Extraction Technology in Fermentation Industry, East China University of Science and Technology, Shanghai 200237, China; Shanghai Collaborative Innovation Center for Biomanufacturing Technology (SCICBT), Shanghai 200237, China
| | - Shumin Chen
- School of Biotechnology, State Key Laboratory of Bioreactor Engineering, R&D Center of Separation and Extraction Technology in Fermentation Industry, East China University of Science and Technology, Shanghai 200237, China
| | - Xiaoguo Ji
- School of Biotechnology, State Key Laboratory of Bioreactor Engineering, R&D Center of Separation and Extraction Technology in Fermentation Industry, East China University of Science and Technology, Shanghai 200237, China
| | - Xin Shen
- School of Biotechnology, State Key Laboratory of Bioreactor Engineering, R&D Center of Separation and Extraction Technology in Fermentation Industry, East China University of Science and Technology, Shanghai 200237, China
| | - Jiangshan You
- School of Biotechnology, State Key Laboratory of Bioreactor Engineering, R&D Center of Separation and Extraction Technology in Fermentation Industry, East China University of Science and Technology, Shanghai 200237, China
| | - Xinyi Liang
- School of Biotechnology, State Key Laboratory of Bioreactor Engineering, R&D Center of Separation and Extraction Technology in Fermentation Industry, East China University of Science and Technology, Shanghai 200237, China
| | - Hao Yin
- Organ Transplant Center, Shanghai Changzheng Hospital, Shanghai 200003, China.
| | - Liming Zhao
- School of Biotechnology, State Key Laboratory of Bioreactor Engineering, R&D Center of Separation and Extraction Technology in Fermentation Industry, East China University of Science and Technology, Shanghai 200237, China; School of Life Science, Shandong University of Technology, Zibo, Shandong 255000, China; Shanghai Collaborative Innovation Center for Biomanufacturing Technology (SCICBT), Shanghai 200237, China.
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11
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Gao G, Wang H, Zhou J, Rao P, Ke L, Lin JJ, Sun Pan B, Zhang Y, Wang Q. Isolation and Characterization of Bioactive Proteoglycan-Lipid Nanoparticles from Freshwater Clam ( Corbicula fluminea Muller) Soup. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:1610-1618. [PMID: 33501827 DOI: 10.1021/acs.jafc.0c02402] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Nanoparticles can be prepared by several sophisticated processes but until now, it cannot be prepared by simple home cooking. Here, we report that two incidental food nanoparticles (iFNPs) consisting of proteoglycans and phytosterols were isolated from soup made from freshwater clam (Corbicula fluminea Muller), a renowned folk remedy for liver problems in China and other parts of East Asia. These two bioactive iFNPs were obtained and characterized by anionic exchange chromatography coupled with multi-angle laser light scattering measurement. Their hydrodynamic diameters and ζ-potentials were 50 ± 0.2 nm and -28.0 mV and 67 ± 0.4 nm and -9.96 mV, respectively. FT-IR revealed that the proteoglycans in the particles contained α-type heteropolysaccharides. Both iFNPs were resistant to pH changes and separation by mechanical force but responsive to temperature changes. They effectively inhibited cholesterol uptake in vitro, which resonates with the traditional belief that freshwater clam soup provides hepatoprotective benefits. This study suggests that these two proteoglycan-lipid iFNPs are the active moieties and offers a supramolecular structure-based approach to study the function of such complex matrices derived from food.
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Affiliation(s)
- Guanzhen Gao
- Food Nutrition Sciences Centre, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Huiqin Wang
- Food Nutrition Sciences Centre, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Jianwu Zhou
- Food Nutrition Sciences Centre, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Pingfan Rao
- Food Nutrition Sciences Centre, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Lijing Ke
- Food Nutrition Sciences Centre, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Jing Jen Lin
- Department of Food Science, National Taiwan Ocean University, Keelung City 202, Taiwan
| | - Bonnie Sun Pan
- Department of Food Science, National Taiwan Ocean University, Keelung City 202, Taiwan
| | - Yue Zhang
- Food Nutrition Sciences Centre, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Qiang Wang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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12
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Jia R, Cao LP, Du JL, He Q, Gu ZY, Jeney G, Xu P, Yin GJ. Effects of high-fat diet on antioxidative status, apoptosis and inflammation in liver of tilapia (Oreochromis niloticus) via Nrf2, TLRs and JNK pathways. FISH & SHELLFISH IMMUNOLOGY 2020; 104:391-401. [PMID: 32553566 DOI: 10.1016/j.fsi.2020.06.025] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 06/09/2020] [Accepted: 06/12/2020] [Indexed: 06/11/2023]
Abstract
Fatty liver injury (or disease) is a common disease in farmed fish, but its pathogenic mechanism is not fully understood. Therefore the present study aims to investigate high-fat diet (HFD)-induced liver injury and explore the underlying mechanism in fish. The tilapia were fed on control diet and HFD for 90 days, and then the blood and liver tissues were collected to determine biochemical parameter, gene expression and protein level. The results showed that HFD feeding signally increased the levels of plasma aminotransferases and pro-inflammatory factors after 60 days. In liver and plasma, HFD feeding significantly suppressed antioxidant ability, but enhanced lipid peroxidation formation, protein oxidation and DNA damage after 60 or 90 days. Further, the Nrf2 pathway and antioxidative function-related genes were adversely changed in liver of HFD-fed tilapia after 60 and/or 90 days. Meanwhile, HFD treatment induced apoptosis via initiating mitochondrial pathway in liver after 90 days. Furthermore, after 90 days of feeding, the expression of genes or proteins related to JNK pathway and TLRs-Myd88-NF-κB pathway was clearly upregulated in HFD treatment. Similarly, the mRNA levels of inflammatory factors including tumor necrosis factor (TNF-α), interleukin-1β (IL-1β), IL-6, IL-8 and IL-10 were also upregulated in liver of HFD-fed tilapia after 60 and/or 90 days. In conclusion, the current study suggested that HFD feeding impaired antioxidant defense system, induced apoptosis, enhanced inflammation and led to liver injury. The adverse influences of HFD in the liver might be due to the variation of Nrf2, JNK and TLRs-Myd88-NF-κB signaling pathways.
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Affiliation(s)
- Rui Jia
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China; International Joint Research Laboratory for Fish Immunopharmacology, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China.
| | - Li-Ping Cao
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China; International Joint Research Laboratory for Fish Immunopharmacology, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Jin-Liang Du
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China; International Joint Research Laboratory for Fish Immunopharmacology, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Qin He
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Zheng-Yan Gu
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Galina Jeney
- International Joint Research Laboratory for Fish Immunopharmacology, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China; National Agricultural Research Center, Research Institute for Fisheries and Aquaculture, Anna Light 8, Szarvas, 5440, Hungary
| | - Pao Xu
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China; International Joint Research Laboratory for Fish Immunopharmacology, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China.
| | - Guo-Jun Yin
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China; International Joint Research Laboratory for Fish Immunopharmacology, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China.
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13
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Yu Z, Gao G, Wang H, Ke L, Zhou J, Rao P, Chen T, Peng Z, Zou J, Luo S. Identification of protein-polysaccharide nanoparticles carrying hepatoprotective bioactives in freshwater clam (Corbicula fluminea Muller) soup. Int J Biol Macromol 2020; 151:781-786. [PMID: 32061848 DOI: 10.1016/j.ijbiomac.2020.02.105] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 02/07/2020] [Accepted: 02/10/2020] [Indexed: 02/08/2023]
Abstract
Bioactives can impact food function either by their dosage or by their forms of dispersion, though the latter remains mostly neglected. Here we report the incidental nanoparticles (iNPs) carrying hepatoprotective bioactives identified in freshwater clam (Corbicula fluminea Muller) soup, which is a folk remedy for liver conditions in East Asia. The soup was fractionated into two iNPs containing fractions with high yield (95.8%) in 35 min by gel chromatography. With hydrodynamic diameter (Dh) range from 40 nm to 149 nm, iNPs were mainly constituted by carbohydrates and proteins. Notably, the majority of bioactives, e.g. taurine (63.2%), ornithine (68.1%) and phytosterols (60.0%), was determined to be carried by the iNPs. It suggested a possible mechanism of elevated delivery and absorption of bioactives, explaining why the clam soup can work at the bioactive concentrations way lower than the individual compound. These iNPs have great potential to be developed into a functional food with most potent nutraceutical effects.
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Affiliation(s)
- Zhaoshuo Yu
- SIBS-Zhejiang Gongshang University Joint Centre for Food and Nutrition Sciences, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Guanzhen Gao
- SIBS-Zhejiang Gongshang University Joint Centre for Food and Nutrition Sciences, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Huiqin Wang
- SIBS-Zhejiang Gongshang University Joint Centre for Food and Nutrition Sciences, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Lijing Ke
- SIBS-Zhejiang Gongshang University Joint Centre for Food and Nutrition Sciences, Zhejiang Gongshang University, Hangzhou 310012, China.
| | - Jianwu Zhou
- SIBS-Zhejiang Gongshang University Joint Centre for Food and Nutrition Sciences, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Pingfan Rao
- SIBS-Zhejiang Gongshang University Joint Centre for Food and Nutrition Sciences, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Tianbao Chen
- Natural Drug Discovery Group, School of Pharmacy, Queen's University Belfast, Belfast, Northern Ireland BT9 7BL, UK
| | - Zhangwen Peng
- SIBS-Zhejiang Gongshang University Joint Centre for Food and Nutrition Sciences, Zhejiang Gongshang University, Hangzhou 310012, China; Institute of Food Science, Jishou University, Jishou 416000, Hunan, China
| | - Jianqiao Zou
- SIBS-Zhejiang Gongshang University Joint Centre for Food and Nutrition Sciences, Zhejiang Gongshang University, Hangzhou 310012, China; Institute of Food Science, Jishou University, Jishou 416000, Hunan, China
| | - Sihao Luo
- SIBS-Zhejiang Gongshang University Joint Centre for Food and Nutrition Sciences, Zhejiang Gongshang University, Hangzhou 310012, China; Institute of Food Science, Jishou University, Jishou 416000, Hunan, China
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14
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Xu H, Lv S, Jiang S, Lu J, Lin L. Radical scavenging activities of peptide from Asian clam (Corbicula fluminea) and its protective effects on oxidative damage induced by hydrogen peroxide in HepG2 cells. J Food Biochem 2020; 44:e13146. [PMID: 31944325 DOI: 10.1111/jfbc.13146] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 12/25/2019] [Accepted: 12/27/2019] [Indexed: 11/29/2022]
Abstract
The soft part of Asian clam (Corbicula fluminea) was hydrolyzed using trypsin and the hydrolysates were separated by ultrafiltration using the membrane with molecular weight cutoff of 10 and 5 kDa. Three fractions (F10000, F10000-5000, and F5000) were obtained. The F5000 showed the strongest scavenging abilities to DPPH (2,2-diphenyl-1-picrylhydrazyl), superoxide anion, and hydroxyl radicals, and was further fractionated into four fractions (component I, II, III, and IV) by gel chromatography. The protective effects of these components on oxidative damage induced by hydrogen peroxide (H2 O2 ) in HepG2 cells were evaluated. Meanwhile, component I separated from F5000 had more positive effects on increasing the activity of catalase, decreasing lipid peroxidation, inhibiting H2 O2 -induced apoptosis, and higher yield. The component I was further separated using anion exchange chromatography and reversed phase high-performance liquid chromatography, and the peptide sequence of Lys-Gly-Pro-Ala- Pro-Phe-Tyr-Pro-Leu was identified by mass with molecular weight of 988.3 Da. PRACTICAL APPLICATIONS: Asian clam (C. fluminea) is used for liver protection in traditional Chinese medicine. The present study investigated the radical scavenging activity of the hydrolysates from C. fluminea and the protective effects of the hydrolysate fractions on oxidative damage induced by H2 O2 in HepG2 cells. In addition, a peptide was purified from the hydrolysate and the amino acid sequence of it was identified. Although chemical antioxidant has some side effects on health, the peptide with antioxidant activity obtained from C. fluminea would have more extensive application in food and nutraceutical.
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Affiliation(s)
- Hao Xu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Shun Lv
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China.,Key Laboratory for Agricultural Products Processing of Anhui Province, Hefei, China
| | - Shaotong Jiang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China.,Key Laboratory for Agricultural Products Processing of Anhui Province, Hefei, China
| | - Jianfeng Lu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China.,Key Laboratory for Agricultural Products Processing of Anhui Province, Hefei, China.,Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei, China
| | - Lin Lin
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China.,Key Laboratory for Agricultural Products Processing of Anhui Province, Hefei, China
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