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Hu B, Shi Y, Lu C, Chen H, Zeng Y, Deng J, Zhang L, Lin Q, Li W, Chen Y, Zhong F, Xia X. Raspberry polyphenols alleviate neurodegenerative diseases: through gut microbiota and ROS signals. Food Funct 2023; 14:7760-7779. [PMID: 37555470 DOI: 10.1039/d3fo01835k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
Neurodegenerative diseases are neurological disorders that become more prevalent with age, usually caused by damage or loss of neurons or their myelin sheaths, such as Alzheimer's disease and epilepsy. Reactive oxygen species (ROS) are important triggers for neurodegenerative disease development, and mitigation of oxidative stress caused by ROS imbalance in the human body is important for the treatment of these diseases. As a widespread delicious fruit, the raspberry is widely used in the field of food and medicine because of its abundant polyphenols and other bioactive substances. Polyphenols from a wide variety of raspberry sources could alleviate neurodegenerative diseases. This review aims to summarize the current roles of these polyphenols in maintaining neurological stability by regulating the composition and metabolism of the intestinal flora and the gut-brain axis signal transmission. Especially, we discuss the therapeutic effects on neurodegenerative diseases of raspberry polyphenols through intestinal microorganisms and ROS signals, by means of summary and analysis. Finally, methods of improving the digestibility and utilization of raspberry polyphenols are proposed, which will provide a potential way for raspberry polyphenols to guarantee the health of the human nervous system.
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Affiliation(s)
- Boyong Hu
- National Engineering Research Center of Rice and Byproduct Deep Processing, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan, China.
| | - Yi Shi
- National Engineering Research Center of Rice and Byproduct Deep Processing, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan, China.
| | - Chunyue Lu
- National Engineering Research Center of Rice and Byproduct Deep Processing, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan, China.
| | - Haixin Chen
- National Engineering Research Center of Rice and Byproduct Deep Processing, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan, China.
| | - Yuqing Zeng
- National Engineering Research Center of Rice and Byproduct Deep Processing, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan, China.
| | - Jing Deng
- National Engineering Research Center of Rice and Byproduct Deep Processing, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan, China.
| | - Lin Zhang
- National Engineering Research Center of Rice and Byproduct Deep Processing, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan, China.
| | - Qinlu Lin
- National Engineering Research Center of Rice and Byproduct Deep Processing, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan, China.
| | - Wen Li
- National Engineering Research Center of Rice and Byproduct Deep Processing, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan, China.
| | - Yuan Chen
- School of Life Science, Huizhou University, Huizhou 516007, China
| | - Feifei Zhong
- National Engineering Research Center of Rice and Byproduct Deep Processing, Hunan Province Key Laboratory of Edible Forestry Resources Safety and Processing Utilization, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan, China.
- Changsha Institute for Food and Drug Control, Changsha 410016, Hunan, China
| | - Xu Xia
- Huaihua Academy of Agricultural Sciences, Huaihua 418000, Hunan, China
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An Organic Solvent-Free Method for the Extraction of Ellagic Acid Compounds from Raspberry Wine Pomace with Assistance of Sodium Bicarbonate. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27072145. [PMID: 35408544 PMCID: PMC9000899 DOI: 10.3390/molecules27072145] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/16/2022] [Accepted: 03/20/2022] [Indexed: 11/29/2022]
Abstract
Industrial processing of raspberry juice and wine generates considerable byproducts of raspberry pomace. Ellagic acids/ellagitannins, being characterized by their antioxidant and antiproliferation properties, constitute the majority of polyphenolics in the pomace and are valuable for recovery. In the present study, we developed a novel procedure with sodium bicarbonate assisted extraction (SBAE) to recover ellagic acid from raspberry wine pomace. Key parameters in the procedure, i.e., sodium bicarbonate concentration, temperature, time and solid/liquid (S/L) ratio, were investigated by single factor analysis and optimized subsequently by Response Surface Methodology (RSM). Optimal parameters for the SBAE method here were found to be 1.2% (w/v) NaHCO3, 1:93 (w/v) S/L ratio, 22 min and 100 °C. Under these conditions, the ellagic acid yield was 6.30 ± 0.92 mg/g pomace with an antioxidant activity of 79.0 ± 0.96 μmol Trolox eq/g pomace (DPPH assay), which are 2.37 and 1.32 times the values obtained by extraction with methanol–acetone–water solvent, respectively. The considerable improvement in ellagic acid extraction efficiency could be highly attributed to the reactions of lipid saponification and ellagitannin hydrolysis resulted from sodium bicarbonates. The present study has established an organic solvent-free method for the extraction of ellagic acid from raspberry wine pomace, which is feasible and practical in nutraceutical applications.
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Wang Y, Ye Y, Wang L, Yin W, Liang J. Antioxidant activity and subcritical water extraction of anthocyanin from raspberry process optimization by response surface methodology. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.101394] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Luan G, Wang Y, Ouyang J, He Y, Zhou W, Dong Q, Wang H, Hu N. Stabilization of Lycium ruthenicum Murr. anthocyanins by natural polyphenol extracts. J Food Sci 2021; 86:4365-4375. [PMID: 34431095 DOI: 10.1111/1750-3841.15888] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 06/02/2021] [Accepted: 07/30/2021] [Indexed: 01/19/2023]
Abstract
Anthocyanins are a group of flavonoids widely used as natural pigments and in functional foods. However, the sensitivity of anthocyanins to environment factors limits their utilization. The present study examined the stabilizing effects of polyphenol extracts from raspberry, sea-buckthorn, Lonicera edulis, and blackcurrant on Lycium ruthenicum Murr (LRM)-derived anthocyanins. After light and heat exposure, contents of total anthocyanins and the monomers were detected with the pH differential method and the HPLC. Remarkably, polyphenol extracts from raspberry, Lonicera edulis and blackcurrant extended the half-lives of anthocyanins, while the effect of the sea-buckthorn extracts was negligible. Noticeably, petunidin-3-O-[6-O-(4-O-trans-p-coumaroyl-alpha-L-rhamnopyranosyl)-beta-D-glucopyranoside]-5-O-[beta-D-glucopyranoside], the major component of LRM-derived anthocyanins, exhibited a dramatic increase in half-life with the presence of polyphenol extracts from raspberry, Lonicera edulis, and blackcurrant. In summary, our findings suggest the polyphenol extracts could be developed into copigments for stabilization of anthocyanins.
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Affiliation(s)
- Guangxiang Luan
- Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Xining, P. R. China.,Department of Medical College and State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, P. R. China
| | - Yuwei Wang
- Department of Medical College and State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, P. R. China
| | - Jian Ouyang
- Huzhou China-Science Innovation Center of Plateau Biology, Huzhou, P. R. China
| | - Yanfeng He
- Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Xining, P. R. China
| | - Wu Zhou
- Department of Medical College and State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, P. R. China
| | - Qi Dong
- Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Xining, P. R. China.,Huzhou China-Science Innovation Center of Plateau Biology, Huzhou, P. R. China
| | - Honglun Wang
- Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Xining, P. R. China.,Huzhou China-Science Innovation Center of Plateau Biology, Huzhou, P. R. China
| | - Na Hu
- Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Xining, P. R. China.,Department of Medical College and State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, P. R. China.,Huzhou China-Science Innovation Center of Plateau Biology, Huzhou, P. R. China
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Durán-Soria S, Pott DM, Will F, Mesa-Marín J, Lewandowski M, Celejewska K, Masny A, Żurawicz E, Jennings N, Sønsteby A, Krüger E, Osorio S. Exploring Genotype-by-Environment Interactions of Chemical Composition of Raspberry by Using a Metabolomics Approach. Metabolites 2021; 11:metabo11080490. [PMID: 34436431 PMCID: PMC8398420 DOI: 10.3390/metabo11080490] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 07/21/2021] [Accepted: 07/26/2021] [Indexed: 12/21/2022] Open
Abstract
Promoting the consumption of fruits is a key objective of nutrition policy campaigns due to their associated health benefits. Raspberries are well appreciated for their remarkable flavor and nutritional value attributable to their antioxidant properties. Consequently, one of the objectives of present-day raspberry breeding programs is to improve the fruit’s sensory and nutritive characteristics. However, developing new genotypes with enhanced quality traits is a complex task due to the intricate impacts genetic and environmental factors have on these attributes, and the difficulty to phenotype them. We used a multi-platform metabolomic approach to compare flavor- and nutritional-related metabolite profiles of four raspberry cultivars (‘Glen Ample’, ‘Schönemann’, ‘Tulameen’ and ‘Veten’) grown in different European climates. Although the cultivars appear to be better adapted to high latitudes, for their content in soluble solids and acidity, multivariate statistical analyses allowed us to underscore important genotypic differences based on the profiles of important metabolites. ‘Schönemann’ and ‘Veten’ were characterized by high levels of anthocyanins and ellagitannins, respectively, ‘Tulameen’ by its acidity, and ‘Glen Ample’ for its content of sucrose and β-ionone, two main flavor contributors. Our results confirmed the value of metabolomic-driven approaches, which may foster the development of cultivars with enhanced health properties and flavor.
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Affiliation(s)
- Sara Durán-Soria
- Departamento de Biología Molecular y Bioquímica, Campus de Teatinos, Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora”, Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Campus de Teatinos, 29071 Málaga, Spain; (S.D.-S.); (D.M.P.); (J.M.-M.)
| | - Delphine M. Pott
- Departamento de Biología Molecular y Bioquímica, Campus de Teatinos, Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora”, Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Campus de Teatinos, 29071 Málaga, Spain; (S.D.-S.); (D.M.P.); (J.M.-M.)
| | - Frank Will
- Institute of Beverage Research, Hochschule Geisenheim University, 65366 Geisenheim, Germany;
| | - Jennifer Mesa-Marín
- Departamento de Biología Molecular y Bioquímica, Campus de Teatinos, Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora”, Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Campus de Teatinos, 29071 Málaga, Spain; (S.D.-S.); (D.M.P.); (J.M.-M.)
| | - Mariusz Lewandowski
- The National Institute of Horticultural Research (INHORT), Konstytucji 3 Maja 1/3, 96-100 Skierniewice, Poland; (M.L.); (K.C.); (A.M.)
| | - Karolina Celejewska
- The National Institute of Horticultural Research (INHORT), Konstytucji 3 Maja 1/3, 96-100 Skierniewice, Poland; (M.L.); (K.C.); (A.M.)
| | - Agnieszka Masny
- The National Institute of Horticultural Research (INHORT), Konstytucji 3 Maja 1/3, 96-100 Skierniewice, Poland; (M.L.); (K.C.); (A.M.)
| | - Edward Żurawicz
- The National Institute of Horticultural Research (INHORT), Konstytucji 3 Maja 1/3, 96-100 Skierniewice, Poland; (M.L.); (K.C.); (A.M.)
| | - Nikki Jennings
- Department of Genetics, James Hutton Institute, Invergowrie, Dundee DD2 5DA, UK;
| | - Anita Sønsteby
- NIBIO, Norwegian Institute of Bioeconomy Research, 1431 Ås, Norway;
| | - Erika Krüger
- Institute of Pomology, Hochschule Geisenheim University, 65366 Geisenheim, Germany;
| | - Sonia Osorio
- Departamento de Biología Molecular y Bioquímica, Campus de Teatinos, Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora”, Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Campus de Teatinos, 29071 Málaga, Spain; (S.D.-S.); (D.M.P.); (J.M.-M.)
- Correspondence: ; Tel.: +34-952-132-394
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Myeloperoxidase Inhibitory and Antioxidant Activities of ( E)-2-Hydroxy-α-aminocinnamic Acids Obtained through Microwave-Assisted Synthesis. Pharmaceuticals (Basel) 2021; 14:ph14060513. [PMID: 34071735 PMCID: PMC8229396 DOI: 10.3390/ph14060513] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/07/2021] [Accepted: 05/11/2021] [Indexed: 01/15/2023] Open
Abstract
Myeloperoxidase (MPO) is an enzyme present in human neutrophils, whose main role is to provide defenses against invading pathogens. However, highly reactive oxygen species (ROS), such as HOCl, are generated from MPO activity, leading to chronic diseases. Herein, we report the microwave-assisted synthesis of a new series of stable (E)-(2-hydroxy)-α-aminocinnamic acids, in good yields, which are structurally analogous to the natural products (Z)-2-hydroxycinnamic acids. The radical scavenging activity (RSA), MPO inhibitory activity and cytotoxicity of the reported compounds were evaluated. The hydroxy derivatives showed the most potent RSA, reducing the presence of DPPH and ABTS radicals by 77% at 0.32 mM and 100% at 0.04 mM, respectively. Their mechanism of action was modeled with BDEOH, IP and ΔEH-L theoretical calculations at the B3LYP/6 − 31 + G(d,p) level. Compounds showed in vitro inhibitory activity of MPO with IC50 values comparable to indomethacin and 5-ASA, but cytotoxicities below 15% at 100–200 µM. Docking calculations revealed that they reach the amino acid residues present in the distal cavity of the MPO active site, where both the amino and carboxylic acid groups of the α-aminopropenoic acid arm are structural requirements for anchoring. (E)-2-hydroxy-α-aminocinnamic acids have been synthesized for the first time with a reliable method and their antioxidant properties demonstrated.
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Anjos R, Cosme F, Gonçalves A, Nunes FM, Vilela A, Pinto T. Effect of agricultural practices, conventional vs organic, on the phytochemical composition of 'Kweli' and 'Tulameen' raspberries (Rubus idaeus L.). Food Chem 2020; 328:126833. [PMID: 32480265 DOI: 10.1016/j.foodchem.2020.126833] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 04/11/2020] [Accepted: 04/14/2020] [Indexed: 12/11/2022]
Abstract
Raspberries are rich in polyphenols but the impact of organic versus conventional agricultural practices on their phytochemical composition is not well known. This study aimed to analyse and compare the polyphenol accumulation in raspberries grown under both agricultural practices in the same edaphoclimatic conditions. Two raspberry cultivars 'Kweli' and 'Tulameen' were used. Under organic agricultural practices, the polyphenols levels increased for the 'Kweli' cultivar but decreased for the 'Tulameen' cultivar. 'Tulameen' cultivar grown under conventional agricultural practices contained higher anthocyanins levels than grown under organic agricultural practices while for the 'Kweli' cultivar no significant differences were observed between the two agricultural practices. 'Kweli' cultivar presented a significantly higher amount of ellagitannins and ellagic acid derivatives when compared to the 'Tulameen' cultivar under both agricultural practices. The effect of the agricultural practices on the raspberries' chemical profile was dependent on the cultivar and cannot be generalised.
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Affiliation(s)
- Rosário Anjos
- University of Trás-os-Montes and Alto Douro, Biology and Environment Department, Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), 5001 801 Vila Real, Portugal.
| | - Fernanda Cosme
- CQ-VR, Chemistry Research Centre - Vila Real, Food and Wine Chemistry Lab, University of Trás-os-Montes and Alto Douro, Biology and Environment Department, 5001 801 Vila Real, Portugal.
| | - Andreia Gonçalves
- University of Trás-os-Montes and Alto Douro, Biology and Environment Department, Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), 5001 801 Vila Real, Portugal
| | - Fernando M Nunes
- CQ-VR, Chemistry Research Centre - Vila Real, Food and Wine Chemistry Lab, University of Trás-os-Montes and Alto Douro, Chemistry Department, 5001-801 Vila Real, Portugal
| | - Alice Vilela
- CQ-VR, Chemistry Research Centre - Vila Real, Food and Wine Chemistry Lab, University of Trás-os-Montes and Alto Douro, Biology and Environment Department, 5001 801 Vila Real, Portugal
| | - Teresa Pinto
- University of Trás-os-Montes and Alto Douro, Biology and Environment Department, Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), 5001 801 Vila Real, Portugal
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Kim HM, Song Y, Hyun GH, Long NP, Park JH, Hsieh YS, Kwon SW. Characterization and Antioxidant Activity Determination of Neutral and Acidic Polysaccharides from Panax Ginseng C. A. Meyer. Molecules 2020; 25:molecules25040791. [PMID: 32059482 PMCID: PMC7070964 DOI: 10.3390/molecules25040791] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 02/07/2020] [Accepted: 02/10/2020] [Indexed: 12/24/2022] Open
Abstract
Panax ginseng (P. ginseng) is the most widely consumed herbal plant in Asia and is well-known for its various pharmacological properties. Many studies have been devoted to this natural product. However, polysaccharide’s components of ginseng and their biological effects have not been widely studied. In this study, white ginseng neutral polysaccharide (WGNP) and white ginseng acidic polysaccharide (WGAP) fractions were purified from P. ginseng roots. The chemical properties of WGNP and WGAP were investigated using various chromatography and spectroscopy techniques, including high-performance gel permeation chromatography, Fourier-transform infrared spectroscopy, and high-performance liquid chromatography with an ultra-violet detector. The antioxidant, anti-radical, and hydrogen peroxide scavenging activities were evaluated in vitro and in vivo using Caenorhabditis elegans as the model organism. Our in vitro data by ABTS (2,2′-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid), reducing power, ferrous ion chelating, and hydroxyl radical scavenging activity suggested that the WGAP with significantly higher uronic acid content and higher molecular weight exhibits a much stronger antioxidant effect as compared to that of WGNP. Similar antioxidant activity of WGAP was also confirmed in vivo by evaluating internal reactive oxygen species (ROS) concentration and lipid peroxidation. In conclusion, WGAP may be used as a natural antioxidant with potent scavenging and metal chelation properties.
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Affiliation(s)
- Hyung Min Kim
- College of Pharmacy, Seoul National University, Seoul 08826, Korea; (H.M.K.); (Y.S.); (G.H.H.); (N.P.L.); (J.H.P.)
| | - Yanxue Song
- College of Pharmacy, Seoul National University, Seoul 08826, Korea; (H.M.K.); (Y.S.); (G.H.H.); (N.P.L.); (J.H.P.)
| | - Gyu Hwan Hyun
- College of Pharmacy, Seoul National University, Seoul 08826, Korea; (H.M.K.); (Y.S.); (G.H.H.); (N.P.L.); (J.H.P.)
| | - Nguyen Phuoc Long
- College of Pharmacy, Seoul National University, Seoul 08826, Korea; (H.M.K.); (Y.S.); (G.H.H.); (N.P.L.); (J.H.P.)
| | - Jeong Hill Park
- College of Pharmacy, Seoul National University, Seoul 08826, Korea; (H.M.K.); (Y.S.); (G.H.H.); (N.P.L.); (J.H.P.)
| | - Yves S.Y. Hsieh
- Division of Glycoscience, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, Royal Institute of Technology (KTH), SE-106 91 Stockholm, Sweden;
| | - Sung Won Kwon
- College of Pharmacy, Seoul National University, Seoul 08826, Korea; (H.M.K.); (Y.S.); (G.H.H.); (N.P.L.); (J.H.P.)
- Plant Genomics and Breeding Institute, Seoul National University, Seoul 08826, Korea
- Correspondence: ; Tel.: +82-2-880-7880
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Liu D, Wang RS, Xuan LL, Wang XH, Li WZ. Two New Apotirucallane-Type Triterpenoids from the Pericarp of Toona sinensis and Their Ability to Reduce Oxidative Stress in Rat Glomerular Mesangial Cells Cultured under High-Glucose Conditions. Molecules 2020; 25:molecules25040801. [PMID: 32059523 PMCID: PMC7070558 DOI: 10.3390/molecules25040801] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 02/11/2020] [Accepted: 02/12/2020] [Indexed: 12/20/2022] Open
Abstract
Hyperglycemia is a strong risk factor for chronic complications of diabetes. Hyperglycemic conditions foster not only the production of reactive oxygen species (ROS), but also the consumption of antioxidants, leading to oxidative stress and promoting the occurrence and progression of complications. During our continuous search for antioxidant constituents from the pericarp of Toona sinensis (A. Juss.) Roem, we isolated two previously unreported apotirucallane-type triterpenoids, toonasinensin A (1) and toonasinensin B (2), together with five known apotirucallane-type triterpenoids (3–7) and two known cycloartane-type triterpenoids (8–9) from the pericarp. Compounds 8–9 were obtained from T. sinensis for the first time. Their structures were characterized based on interpretation of spectroscopic data (1D, 2D NMR, high-resolution electrospray ionization mass spectra, HR-ESI-MS) and comparison to previous reports. Compounds (2, 4, 6, 7, and 9) were able to inhibit proliferation against rat glomerular mesangial cells (GMCs) cultured under high-glucose conditions within a concentration of 80 μM. Compounds (2, 6, and 7) were tested for antioxidant activity attributable to superoxide dismutase (SOD), malondialdehyde (MDA), and ROS in vitro, and the results showed that compounds (2, 6, and 7) could significantly increase the levels of SOD and reduce the levels of MDA and ROS. The current studies showed that apotirucallane-type triterpenoids (2, 6, and 7) might have the antioxidant effects against diabetic nephropathy.
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Affiliation(s)
| | | | | | - Xiao-hong Wang
- Correspondence: (X.-h.W.); (W.-z.L.); Tel.: +86-536-8462493 (X.-h.W.); +86-536-8462490 (W.-z.L.)
| | - Wan-zhong Li
- Correspondence: (X.-h.W.); (W.-z.L.); Tel.: +86-536-8462493 (X.-h.W.); +86-536-8462490 (W.-z.L.)
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