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Zhang S, Hyatt JR, Akoh CC. Lipase-catalyzed one-step regioselective synthesis of 1,2-dioctanoylgalloylglycerol in a solvent-free system: Optimization of reaction conditions and structural elucidation. Food Chem 2022; 382:132302. [PMID: 35144189 DOI: 10.1016/j.foodchem.2022.132302] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 01/19/2022] [Accepted: 01/29/2022] [Indexed: 12/27/2022]
Abstract
A multi-functional galloylated structured lipid, 1,2-dioctanoylgalloylglycerol (DOGG), was synthesized enzymatically via a regioselective transesterification of propyl gallate and trioctanoate using an immobilized food-grade Candida antarctica lipase B (Lipozyme® 435) as the biocatalyst under solvent-free condition. The variables that affect the reaction, including reaction temperature, substrate ratio, reaction time, and enzyme load, were evaluated and optimized using Taguchi method and response surface methodology. Both methods predicted the same optimal reaction condition, resulting in a 68.8 ± 1.3% DOGG yield with reaction selectivity of 82.9 ± 0.6% at 90 °C, 25/1 trioctanoate/PG (mol/mol), 72 h reaction, and 25% enzyme load relative to the total substrate weight. The structure of the reaction product was elucidated using NMR spectroscopy and ESI-HRMS, confirming the regioselectivity of the reaction. Enzyme retained 50% of its activity after 5 cycles of reuse. It is feasible to synthesize DOGG as a potential antioxidant and nutraceutical using Lipozyme® 435.
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Affiliation(s)
- Siyu Zhang
- Department of Food Science and Technology, University of Georgia, Athens, GA, USA.
| | - Joseph R Hyatt
- Department of Food Science and Technology, University of Georgia, Athens, GA, USA.
| | - Casimir C Akoh
- Department of Food Science and Technology, University of Georgia, Athens, GA, USA.
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2
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Owumi SE, Najophe SE, Idowu TB, Nwozo SO. Protective mechanisms of gallic acid on hepatorenal dysfunction of zearalenone treated rat. Biologia (Bratisl) 2021. [DOI: 10.1007/s11756-021-00828-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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3
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Salazar J, Cano C, Pérez JL, Castro A, Díaz MP, Garrido B, Carrasquero R, Chacín M, Velasco M, D Marco L, Rojas-Quintero J, Bermúdez V. Role of Dietary Polyphenols in Adipose Tissue Browning: A Narrative Review. Curr Pharm Des 2021; 26:4444-4460. [PMID: 32611294 DOI: 10.2174/1381612826666200701211422] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 05/20/2020] [Indexed: 02/07/2023]
Abstract
Lifestyle modifications such as energy restriction and increased physical activity are highly effective in the management of obesity. However, adherence to these therapeutic approaches is poor. On the other hand, synthetic drugs used for obesity control are plagued by adverse effects. Despite these failures, adipose tissue is still an attractive therapeutic target for novel molecules, and thus, the characterisation of new and safer anti-obesity drugs is of significant interest. For this reason, in recent years, phenolic constituents of diverse plants have drawn much attention due to their health-promoting properties, opening new research lines related to brown adipose tissue activation and white adipose tissue (WAT) browning. The goal is to increase energy expenditure levels through thermogenic activity activation by multiple factors, like polyphenols. The suggested mechanisms by which polyphenols can modulate thermogenesis include Nor-epinephrine/Catechol-O-Methyl-Transferase (NE/COMT) inhibition, PPARγ co-activator alpha (PGC-1α)-dependent pathways activation, and mitochondrial biogenesis, among others. Although polyphenols such as quercetin, catechins, chrysin, luteolin, curcumin, resveratrol, gallic acid, and lignans have shown a positive effect on Non-Shivering Thermogenesis and WAT browning, most of them have only been active in murine models or in vitro systems, and their reproducibility in humans has to be proved. Probably in the future, an approach that includes these compounds as part of the nutritional regimen in conjunction with physical exercise, pharmacological and surgical therapy, would allow modulating a pathophysiological mechanism that is still elusive.
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Affiliation(s)
- Juan Salazar
- Endocrine and Metabolic Diseases Research Center. School of Medicine, University of Zulia, Maracaibo, Venezuela
| | - Clímaco Cano
- Endocrine and Metabolic Diseases Research Center. School of Medicine, University of Zulia, Maracaibo, Venezuela
| | - José L Pérez
- Endocrine and Metabolic Diseases Research Center. School of Medicine, University of Zulia, Maracaibo, Venezuela
| | - Ana Castro
- Endocrine and Metabolic Diseases Research Center. School of Medicine, University of Zulia, Maracaibo, Venezuela
| | - María P Díaz
- Endocrine and Metabolic Diseases Research Center. School of Medicine, University of Zulia, Maracaibo, Venezuela
| | - Bermary Garrido
- Endocrine and Metabolic Diseases Research Center. School of Medicine, University of Zulia, Maracaibo, Venezuela
| | - Rubén Carrasquero
- Endocrine and Metabolic Diseases Research Center. School of Medicine, University of Zulia, Maracaibo, Venezuela
| | - Maricarmen Chacín
- Universidad Simón Bolívar, Facultad de Ciencias de la Salud, Barranquilla, Colombia
| | - Manuel Velasco
- Universidad Central de Venezuela, Escuela de Medicina José María Vargas, Caracas, Venezuela
| | - Luis D Marco
- Hospital Clínico Universitario, INCLIVA, Nephrology department, Valencia, Espana
| | - Joselyn Rojas-Quintero
- Pulmonary and Critical Care Medicine Department, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Valmore Bermúdez
- Universidad Simón Bolívar, Facultad de Ciencias de la Salud, Barranquilla, Colombia
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Hajihasani MM, Soheili V, Zirak MR, Sahebkar A, Shakeri A. Natural products as safeguards against monosodium glutamate-induced toxicity. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2020; 23:416-430. [PMID: 32489556 PMCID: PMC7239414 DOI: 10.22038/ijbms.2020.43060.10123] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 01/04/2020] [Indexed: 12/17/2022]
Abstract
Monosodium glutamate is a sodium salt of a nonessential amino acid, L-glutamic acid, which is widely used in food industry. Glutamate plays an important role in principal brain functions including formation and stabilization of synapses, memory, cognition, learning, as well as cellular metabolism. However, ingestion of foodstuffs rich in monosodium glutamate can result in the outbreak of several health disorders such as neurotoxicity, hepatotoxicity, obesity and diabetes. The usage of medicinal plants and their natural products as a therapy against MSG used in food industry has been suggested to be protective. Calendula officinalis, Curcuma longa, Green Tea, Ginkgo biloba and vitamins are some of the main natural products with protective effect against mentioned monosodium glutamate toxicity through different mechanisms. This review provides a summary on the toxicity of monosodium glutamate and the protective effects of natural products against monosodium glutamate -induced toxicity.
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Affiliation(s)
- Mohammad Mahdi Hajihasani
- Department of Pharmaceutical Control, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Vahid Soheili
- Department of Pharmaceutical Control, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Reza Zirak
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Abolfazl Shakeri
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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5
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Dludla PV, Nkambule BB, Jack B, Mkandla Z, Mutize T, Silvestri S, Orlando P, Tiano L, Louw J, Mazibuko-Mbeje SE. Inflammation and Oxidative Stress in an Obese State and the Protective Effects of Gallic Acid. Nutrients 2018; 11:nu11010023. [PMID: 30577684 PMCID: PMC6356415 DOI: 10.3390/nu11010023] [Citation(s) in RCA: 159] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 11/08/2018] [Accepted: 11/17/2018] [Indexed: 12/12/2022] Open
Abstract
Metabolic complications in an obese state can be aggravated by an abnormal inflammatory response and enhanced production of reactive oxygen species. Pro-inflammatory response is known to be associated with the formation of toxic reactive oxygen species and subsequent generation of oxidative stress. Indeed, adipocytes from obese individuals display an altered adipokine profile, with upregulated expression and secretion of pro-inflammatory cytokines such as tumor necrosis factor alpha (TNF-α) and interleukin (IL-6). Interestingly, natural compounds, including phenolic enriched foods are increasingly explored for their ameliorative effects against various metabolic diseases. Of interest is gallic acid, a trihydroxybenzoic acid that has progressively demonstrated robust anti-obesity capabilities in various experimental models. In addition to reducing excessive lipid storage in obese subjects, gallic acid has been shown to specifically target the adipose tissue to suppress lipogenesis, improve insulin signaling, and concomitantly combat raised pro-inflammatory response and oxidative stress. This review will revise mechanisms involved in the pathophysiological effects of inflammation and oxidative stress in an obese state. To better inform on its therapeutic potential and improvement of human health, available evidence reporting on the anti-obesity properties of gallic acid and its derivatives will be discussed, with emphases on its modulatory effect on molecular mechanisms involved in insulin signaling, inflammation and oxidative stress.
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Affiliation(s)
- Phiwayinkosi V Dludla
- Department of Life and Environmental Sciences, Polytechnic University of Marche, 60131 Ancona, Italy.
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa.
| | - Bongani B Nkambule
- School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban 4000, South Africa.
| | - Babalwa Jack
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa.
| | - Zibusiso Mkandla
- School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban 4000, South Africa.
| | - Tinashe Mutize
- School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban 4000, South Africa.
| | - Sonia Silvestri
- Department of Life and Environmental Sciences, Polytechnic University of Marche, 60131 Ancona, Italy.
| | - Patrick Orlando
- Department of Life and Environmental Sciences, Polytechnic University of Marche, 60131 Ancona, Italy.
| | - Luca Tiano
- Department of Life and Environmental Sciences, Polytechnic University of Marche, 60131 Ancona, Italy.
| | - Johan Louw
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa.
- Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa 3886, South Africa.
| | - Sithandiwe E Mazibuko-Mbeje
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa.
- Division of Medical Physiology, Faculty of Health Sciences, Stellenbosch University, Tygerberg 7505, South Africa.
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Pi M, Kapoor K, Ye R, Smith JC, Baudry J, Quarles LD. GPCR6A Is a Molecular Target for the Natural Products Gallate and EGCG in Green Tea. Mol Nutr Food Res 2018; 62:e1700770. [PMID: 29468843 DOI: 10.1002/mnfr.201700770] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 02/07/2018] [Indexed: 12/15/2022]
Abstract
SCOPE The molecular mechanisms whereby gallates in green tea exert metabolic effects are poorly understood. METHODS AND RESULTS We found that GPRC6A, a multi-ligand-sensing G-protein-coupled receptor that regulates energy metabolism, sex hormone production, and prostate cancer progression, is a target for gallates. Sodium gallate (SG), gallic acid (GA) > ethyl gallate (EG) > octyl gallate (OG) dose dependently activated ERK in HEK-293 cells transfected with GPRC6A but not in non-transfected controls. SG also stimulated insulin secretion in β-cells isolated from wild-type mice similar to the endogenous GPRC6A ligands, osteocalcin (Ocn) and testosterone (T). Side-chain additions to create OG resulted in loss of GPRC6A agonist activity. Another component of green tea, epigallocatechin 3-gallate (EGCG), dose-dependently inhibited Ocn activation of GPRC6A in HEK-293 cells transfected with GPRC6A and blocked the effect of Ocn in stimulating glucose production in CH10T1/2 cells. Using structural models of the venus fly trap (VFT) and 7-transmembrane (7-TM) domains of GPRC6A, calculations suggest that l-amino acids and GA bind to the VFT, whereas EGCG is calculated to bind to sites in both the VFT and 7-TM. CONCLUSION GA and EGCG have offsetting agonist and antagonist effects on GPRC6A that may account for the variable metabolic effect of green tea consumption.
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Affiliation(s)
- Min Pi
- Department of Medicine, University of Tennessee Health Science Center, 19 S Manassas St., Memphis, TN, 38163, USA
| | - Karan Kapoor
- UT/ORNL Center for Molecular Biophysics, Oak Ridge, TN, 37830, USA
| | - Ruisong Ye
- Department of Medicine, University of Tennessee Health Science Center, 19 S Manassas St., Memphis, TN, 38163, USA
| | - Jeremy C Smith
- UT/ORNL Center for Molecular Biophysics, Oak Ridge, TN, 37830, USA.,Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, TN, 37996, USA
| | - Jerome Baudry
- UT/ORNL Center for Molecular Biophysics, Oak Ridge, TN, 37830, USA.,Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, TN, 37996, USA
| | - Leigh D Quarles
- Department of Medicine, University of Tennessee Health Science Center, 19 S Manassas St., Memphis, TN, 38163, USA
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Sowndhar Rajan B, Manivasagam S, Dhanusu S, Chandrasekar N, Krishna K, Kalaiarasu LP, Babu AA, Vellaichamy E. Diet with high content of advanced glycation end products induces systemic inflammation and weight gain in experimental mice: Protective role of curcumin and gallic acid. Food Chem Toxicol 2018; 114:237-245. [PMID: 29432842 DOI: 10.1016/j.fct.2018.02.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 02/04/2018] [Accepted: 02/07/2018] [Indexed: 12/21/2022]
Abstract
The present study was aimed to investigate the effect of diet derived AGEs (dAGEs) on the circulatory levels of pro-inflammatory cytokines, chemokines and to evaluate the protective efficacy of natural anti-oxidants curcumin (CU) and gallic acid (GA) respectively against the dAGEs-induced systemic inflammation in experimental Swiss albino mice. The experimental mice were fed with dAGEs in the presence and absence of CU and GA for 6 months. The levels of 40 circulatory pro-inflammatory cytokines and chemokines were evaluated using Proteome-Cytokine Array kit. In addition, serum levels of N-ɛCML, CRP and HbA1c were estimated by ELISA method. Among the sixteen pro- and anti-inflammatory cytokines analysed, five (IL-16, IL-1α, ICAM, TIMP-1 and C5a) were found to be highly expressed (3.5-fold) and eleven cytokines were moderately expressed (2-fold) in dAGEs fed mice. In case of chemokines, three (BLC, SDF-1 and MCP-1) were found to be highly expressed (4-fold) and ten showed moderate expression (2-fold) as compared with basal diet fed mice. Interestingly, CU or GA co-treatment normalized the levels of circulatory pro- and anti-inflammatory cytokines, chemokines, N-ɛCML, CRP and HbA1c levels. Together, the present study suggests that dAGEs are positively associated with the development of systemic inflammation in experimental mice.
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Affiliation(s)
- Boopathi Sowndhar Rajan
- Peptide Research and Molecular Cardiology Lab, Department of Biochemistry, University of Madras, Guindy Campus, Chennai 600025, India
| | - Senthamizharasi Manivasagam
- Peptide Research and Molecular Cardiology Lab, Department of Biochemistry, University of Madras, Guindy Campus, Chennai 600025, India
| | - Suresh Dhanusu
- Peptide Research and Molecular Cardiology Lab, Department of Biochemistry, University of Madras, Guindy Campus, Chennai 600025, India
| | - Navvi Chandrasekar
- Peptide Research and Molecular Cardiology Lab, Department of Biochemistry, University of Madras, Guindy Campus, Chennai 600025, India
| | - Kalaiselvi Krishna
- Peptide Research and Molecular Cardiology Lab, Department of Biochemistry, University of Madras, Guindy Campus, Chennai 600025, India
| | - Lakshmi Priya Kalaiarasu
- Peptide Research and Molecular Cardiology Lab, Department of Biochemistry, University of Madras, Guindy Campus, Chennai 600025, India
| | - Aadhil Ashwaq Babu
- Peptide Research and Molecular Cardiology Lab, Department of Biochemistry, University of Madras, Guindy Campus, Chennai 600025, India
| | - Elangovan Vellaichamy
- Peptide Research and Molecular Cardiology Lab, Department of Biochemistry, University of Madras, Guindy Campus, Chennai 600025, India.
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Jung DW, Lee OH, Kang IJ. Sanguisorba officinalis L. Extracts Exert Antiobesity Effects in 3T3-L1 Adipocytes and C57BL/6J Mice Fed High-Fat Diets. J Med Food 2016; 19:768-79. [DOI: 10.1089/jmf.2016.3704] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Da-Woon Jung
- Department of Food Science and Nutrition, Hallym University, Gangwon, Korea
| | - Ok-Hwan Lee
- Department of Food Science and Biotechnology, Kangwon National University, Gangwon, Korea
| | - Il-Jun Kang
- Department of Food Science and Nutrition, Hallym University, Gangwon, Korea
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Zeng QH, Zhao JB, Wang JJ, Zhang XW, Jiang JG. Comparative extraction processes, volatile compounds analysis and antioxidant activities of essential oils from Cirsium japonicum Fisch. ex DC and Cirsium setosum (Willd.) M.Bieb. Lebensm Wiss Technol 2016. [DOI: 10.1016/j.lwt.2016.01.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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El-Hussainy EHMA, Hussein AM, Abdel-Aziz A, El-Mehasseb I. Effects of aluminum oxide (Al2O3) nanoparticles on ECG, myocardial inflammatory cytokines, redox state, and connexin 43 and lipid profile in rats: possible cardioprotective effect of gallic acid. Can J Physiol Pharmacol 2016; 94:868-78. [PMID: 27191243 DOI: 10.1139/cjpp-2015-0446] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The objectives of present study were to examine the effects of aluminum oxide (Al2O3) nanoparticles on myocardial functions, electrical activities, morphology, inflammation, redox state, and myocardial expression of connexin 43 (Cx43) and the effect of gallic acid (GA) on these effects in a rat animal model. Forty male albino rats were divided into 4 equal groups: the control (normal) group; the Al2O3 group, rats received Al2O3 (30 mg·kg(-1), i.p.) daily for 14 days; the nano-alumina group, rats received nano-alumina (30 mg·kg(-1), i.p.) daily for 14 days; and the nano-alumina + GA group, rats received GA (100 mg·kg(-1) orally once daily) for 14 days before nano-alumina administration. The results showed disturbed ECG variables and significant increases in serum levels of LDH, creatine phosphokinase (CPK), CK-MB, triglycerides (TGs), cholesterol and LDL, nitric oxide (NO), and TNF-α and myocardial concentrations of NO, TNF-α, and malondialdehyde (MDA), with significant decreases in serum HDL and myocardial GSH, SOD, catalase (CAT), and Cx43 expression in the nano-alumina group. Pretreatment with GA improved significantly all parameters except serum and myocardial NO. We concluded that chronic administration of Al2O3 NPs caused myocardial dysfunctions, and pretreatment with GA ameliorates myocardial injury induced by nano-alumina, probably through its hypolipidaemic, anti-inflammatory, and antioxidant effects and upregulation of Cx43 in heart.
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Affiliation(s)
| | | | - Azza Abdel-Aziz
- c Department of Pathology, Faculty of Medicine, Mansoura University, Egypt
| | - Ibrahim El-Mehasseb
- d Department of Inorganic Chemistry, Faculty of Science, Kafrelsheikh University, Egypt
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