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Peng X, Hu X, Liu K, Gong D, Zhang G. Exploring inhibitory effect and mechanism of hesperetin-Cu (II) complex against protein glycation. Food Chem 2023; 416:135801. [PMID: 36870150 DOI: 10.1016/j.foodchem.2023.135801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 02/24/2023] [Accepted: 02/24/2023] [Indexed: 03/06/2023]
Abstract
Inhibition of advanced glycation end products (AGEs) formed in protein glycosylation is crucial for minimizing diabetic complications. Herein, the anti-glycation potential of hesperetin-Cu (II) complex was investigated. Hesperetin-Cu (II) complex strongly inhibited three stages glycosylation products in bovine serum albumin (BSA)-fructose model, especially for the inhibition of AGEs (88.45%), which was stronger than hesperetin (51.76%) and aminoguanidine (22.89%). Meanwhile, hesperetin-Cu (II) complex decreased the levels of BSA carbonylation and oxidation products. 182.50 µg/mL of hesperetin-Cu (II) complex inhibited 66.71% β-crosslinking structures of BSA, and scavenged 59.80% superoxide anions and 79.76% hydroxyl radicals. Moreover, after incubating with methylglyoxal for 24 h, hesperetin-Cu (II) complex removed 85.70% methylglyoxal. The mechanisms of protein antiglycation by hesperetin-Cu (II) complex may be through protecting structure, trapping methylglyoxal, scavenging free radicals and interacting with BSA. This study may contribute to the development of hesperetin-Cu (II) complex as a functional food additive against protein glycation.
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Affiliation(s)
- Xi Peng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; Jiangxi Biotech Vocational College, Nanchang 330200, China
| | - Xing Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Kai Liu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Deming Gong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
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Lin YY, Lin YK, Lin YH, Chiang CF. Novel compounds of Djulis ( Chenopodium formosanum Koidz) increases collagen, antioxidants, inhibits adipogenesis. Nat Prod Res 2023:1-10. [PMID: 37452702 DOI: 10.1080/14786419.2023.2235064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 06/27/2023] [Accepted: 07/06/2023] [Indexed: 07/18/2023]
Abstract
Djulis (Chenopodium formosanum Koidz), is rich in nutrients and contains various bioactive components such as polyphenols and alkaloids. The new compound has a broad application prospect, including food additives, health products, drugs, etc. The purpose of this study was to find out new compounds from Djulis. It was found that 24 compounds including 7 phenols, 11 flavonoids, 4 plant alkaloids, 2 sterols. Among those, TCI-CF-22-S (Methyl 3,6-dihydroxy-2-oxo-1,2,3,4-tetrahydroquinoline-3-carboxylate), TCI-CF-23-S (Methyl 6-hydroxy-2-oxo-1,2,3,4-tetrahydroquinoline-3-carboxylate), TCI-CF-24-S (Kaempferol-3-O-b-D-apifuranosyl-(1→2)-a-L-arabinopyranoside) were isolated from djulis sources for the first time, and the structures of compounds were assigned by 1D, 2D NMR spectroscopy. TCI-CF-01(Caffeic acid), TCI-CF-02 (20-Hydroxyecdysone), TCI-CF-03 (Japonicone), TCI-CF-04 (3,4-Dihydroxyphenylacetiate), TCI-CF-05 (Quercetin-3-O-rutinoside-7-O-rhamnopyranoside), TCI-CF-06 (Guanosine), TCI-CF-07(Adenine), TCI-CF-08 (Coumaric acid) increased collagen production, and TCI-CF-03 (Japonicone), TCI-CF-04 (3,4-Dihydroxyphenylacetiate), TCI-CF-06 (Guanosine), TCI-CF-17 (Rutin), TCI-CF-20 (Protocatechuic acid) decreased advanced glycation end products (AGEs). In addition, TCI-CF-22-S (Methyl 6-hydroxy-2-oxo-1,2,3,4-tetrahydroquinoline-3-carboxylate), TCI-CF-23-S (Methyl 3,6-dihydroxy-2-oxo-1,2,3,4-tetrahydroquinoline-3-carboxylate) inhibited the formation of fatty oil droplets. Djulis has 24 compounds that may have various applications, including increasing collagen production and reducing advanced glycation end products and fatty oil droplets.
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Affiliation(s)
- Yuan-You Lin
- Research & Design Center, TCI CO., Ltd, Taipei, Taiwan
| | - Yung-Kai Lin
- Institute of Food Safety and Risk Management, National Taiwan Ocean University, Keelung, Taiwan
- Department of Food Science, National Taiwan Ocean University, Keelung, Taiwan
- Graduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung, Taiwan
| | | | - Chi-Fu Chiang
- Research & Design Center, TCI CO., Ltd, Taipei, Taiwan
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Ratnaningtyas NI, Hernayanti H, Ekowati N, Husen F. Ethanol extract of the mushroom Coprinus comatus exhibits antidiabetic and antioxidant activities in streptozotocin-induced diabetic rats. PHARMACEUTICAL BIOLOGY 2022; 60:1126-1136. [PMID: 35675226 PMCID: PMC9186368 DOI: 10.1080/13880209.2022.2074054] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 04/08/2022] [Accepted: 04/30/2022] [Indexed: 06/15/2023]
Abstract
CONTEXT Edible mushrooms have a long history of use in traditional Chinese or Japanese medicine. Coprinus comatus (O.F. Müll.) Pers. (Agaricaceae) contains antioxidant and antidiabetic agents. OBJECTIVE To identify the benefits of ethanol extracts of the C. comatus fruit body in streptozotocin-induced hyperglycaemic rats by evaluating their blood glucose, glycosylated haemoglobin (HbA1c), insulin, glucagon-like peptide-1 (GLP-1), dipeptidyl peptidase-4 (DPP-4), and glutathione (GSH) levels, with and without extract administration. MATERIALS AND METHODS Wistar rats were either left untreated or were administered 45 mg/kg body weight (BW) streptozotocin; 45 mg/kg BW metformin; or 250, 500, or 750 mg/kg BW extract for 14 days. The blood glucose, GLP-1, DPP-4, GSH, insulin, and HbA1c levels were determined. Data were analysed using analysis of variance and Duncan's multiple range tests. RESULTS Preliminary data showed that administration of C. comatus ethanol extract dose of 250, 500, and 750 mg orally has no toxicity effects after 24 h administration. The ethanolic extract of fruiting body of C. comatus considerably reduced the rat's fasting blood glucose levels 26.69%, and DPP-4 6.97% at dose of 750 mg. The extract reduced HbA1c 4-4.30%, increased GLP-1 71.09%, GSH 11.19% at dose of 500 mg, and increased insulin levels 13.83%. Extracts contain bioactive compounds such as flavonoid, alkaloid, terpenoids, vitamins C and E, rutin, and saponin. CONCLUSIONS The C. comatus extract can be used as herbal medicine that reduces diabetic symptoms. Further investigation on C. comatus extracts should be conducted with gas chromatography-mass spectrometry to characterise the bioactive compounds.
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Affiliation(s)
- Nuniek Ina Ratnaningtyas
- Department of Biology, Faculty of Biology, Jenderal Soedirman University, Central Java, Indonesia
| | - Hernayanti Hernayanti
- Department of Biology, Faculty of Biology, Jenderal Soedirman University, Central Java, Indonesia
| | - Nuraeni Ekowati
- Department of Biology, Faculty of Biology, Jenderal Soedirman University, Central Java, Indonesia
| | - Fajar Husen
- Department of Medical Laboratory of Technology, Bina Cipta Husada College of Health Science, Central Java, Indonesia
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Standardized Pomegranate (Pomella ®) and Red Maple (Maplifa ®) Extracts and Their Phenolics Protect Type I Collagen by the Inhibition of Matrix Metalloproteinases, Collagenase, and Collagen Cross-Linking. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27227919. [PMID: 36432019 PMCID: PMC9696304 DOI: 10.3390/molecules27227919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/06/2022] [Accepted: 11/13/2022] [Indexed: 11/18/2022]
Abstract
Phenolics enriched pomegranate fruit (Pomella®) and red maple leaf (Maplifa®) extracts and their major phenolic constituents have demonstrated beneficial skin effects through the protection of human skin keratinocytes from oxidative-stress-induced damage. However, their mechanisms of protection of cutaneous collagen are still unclear. Herein, the collagen protective effects of Pomella® and Maplifa®, and their major bioactive phytochemicals, namely, punicalagin (PA) and ginnalin A (GA), respectively, were evaluated using enzymatic assays including collagenase, anti-glycation and cell-based models as well as computational methods. The importance of the modulatory effects was validated at the protein level for type I collagen and matrix metalloproteinases (MMPs) using human-skin-derived keratinocytes. The synergistic collagenase inhibitory effects upon combinations of Pomella® + Maplifa® and PA + GA at a combination ratio of 1:2 and 1:1, respectively, were evaluated using their combination index (CI; a well-established assessment of synergism). Pomella® (50-400 µg/mL), Maplifa® (100-800 µg/mL), PA (50-400 µM), and GA (50-400 µM) dose-dependently inhibited collagenase activity by 26.3-86.3%, 25.7-94.0%, 26.2-94.0%, and 12.0-98.0%, respectively. The CI of the anti-collagenase activity of Pomella® and Maplifa® ranged from 0.53-0.90, while that of PA and GA (12.5/12.5 and 25/25 µM) ranged from 0.66 and 0.69, respectively, suggesting a synergistic inhibitory effect. Interestingly, in the cell-based assays by Western blotting, Pomella® and Maplifa® reduced the protein expression levels of collagen degradation enzymes (MMPs), while simultaneously increasing that of type I collagen in epidermoid carcinoma A431 cells. This is the first report to show that these extracts exert synergistic collagen protective effects. Taken together, these findings provide molecular insights into the usefulness of Pomella® and Maplifa® or their phenolics as bioactive ingredients for skin care products to slow down aging and enhance skin tone.
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Ávila F, Cruz N, Alarcon-Espósito J, Nina N, Paillan H, Márquez K, Fuentealba D, Burgos-Edwards A, Theoduloz C, Vejar-Vivar C, Schmeda-Hirschmann G. Inhibition of advanced glycation end products and protein oxidation by leaf extracts and phenolics from Chilean bean landraces. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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Evaluation and molecular modelling of bis-Schiff base derivatives as potential leads for management of diabetes mellitus. ACTA PHARMACEUTICA (ZAGREB, CROATIA) 2022; 72:449-458. [PMID: 36651543 DOI: 10.2478/acph-2022-0019] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/02/2021] [Indexed: 01/26/2023]
Abstract
Developing a medication to cure and manage diabetes mellitus complications is of interest in medicinal chemistry. Toward this end, six bis-biphenyl-salicylaldehyde Schiff base derivatives have been evaluated for their α-glucosidase inhibition, antiglycation and anti-inflammation potentials. Four compounds (compounds 2-5) showed an excellent α-glucosidase inhibitory effect superior to that produced by acarbose. Additionally, the docking study revealed that these compounds are anchored within the binding pocket of α-glucosidase via hydrogen bonding, π-stacking and hydrophobic interactions, comparable to a high number of hydrogen bonding involved in anchoring acarbose. Interestingly, all tested compounds showed varying degrees of antiglycation activity with superior activity for two of them (compound 1 and compound 6) compared to the standard rutin. Moreover, the results indicated an outstanding anti-inflammatory activity for two compounds (compounds 1 and 6) compared to ibuprofen.
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Rochín-Hernández LS, Rochín-Hernández LJ, Flores-Cotera LB. Endophytes, a Potential Source of Bioactive Compounds to Curtail the Formation–Accumulation of Advanced Glycation End Products: A Review. Molecules 2022; 27:molecules27144469. [PMID: 35889349 PMCID: PMC9322667 DOI: 10.3390/molecules27144469] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/02/2022] [Accepted: 07/03/2022] [Indexed: 02/04/2023] Open
Abstract
Endophytes, microorganisms that live in the internal tissues and organs of the plants, are known to produce numerous bioactive compounds, including, at times, some phytochemicals of their host plant. For such reason, endophytes have been quoted as a potential source for discovering bioactive compounds, particularly, of medical interest. Currently, many non-communicable diseases are threatening global human health, noticeably: diabetes, neurodegenerative diseases, cancer, and other ailment related to chronic inflammation and ageing. Intriguingly, the pathogenesis and development of these diseases have been linked to an excessive formation and accumulation of advanced glycation end products (AGEs). AGEs are a heterogeneous group of compounds that can alter the conformation, function, and lifetime of proteins. Therefore, compounds that prevent the formation and consequent accumulation of AGEs (AntiAGEs compounds) could be useful to delay the progress of some chronic diseases, and/or harmful effects of undue AGEs accumulation. Despite the remarkable ability of endophytes to produce bioactive compounds, most of the natural antiAGEs compounds reported in the literature are derived from plants. Accordingly, this work covers 26 plant antiAGEs compounds and some derivatives that have been reported as endophytic metabolites, and discusses the importance, possible advantages, and challenges of using endophytes as a potential source of antiAGEs compounds.
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Affiliation(s)
- Lory Sthephany Rochín-Hernández
- Department of Biotechnology and Bioengineering, Cinvestav-IPN, Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco, México City 07360, Mexico;
| | - Lory Jhenifer Rochín-Hernández
- Department of Biomedicine and Molecular Biology, Cinvestav-IPN, Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco, México City 07360, Mexico;
| | - Luis Bernardo Flores-Cotera
- Department of Biotechnology and Bioengineering, Cinvestav-IPN, Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco, México City 07360, Mexico;
- Correspondence: ; Tel.: +55-13499526
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Liu Y, Sui X, Zhao X, Wang S, Yang Q. Antioxidative Activity Evaluation of High Purity and Micronized Tartary Buckwheat Flavonoids Prepared by Antisolvent Recrystallization. Foods 2022; 11:foods11091346. [PMID: 35564069 PMCID: PMC9102898 DOI: 10.3390/foods11091346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/27/2022] [Accepted: 05/03/2022] [Indexed: 11/19/2022] Open
Abstract
Tartary buckwheat, a healthy food, is associated with a reduced risk of certain human chronic diseases. However, the bioactive component flavonoids in Tartary buckwheat have poor solubility and low absorption in vivo. To improve these points, 60.00% Tartary buckwheat total flavonoids (TFs) were obtained by ethanol refluxing method, which were purified and micronized by antisolvent recrystallization (ASR) using methanol as a solvent and deionized water as an antisolvent. By using High Performance Liquid Chromatography (HPLC) and electrospray ionized mass spectrometry (ESI-MS), the main flavonoid in pure flavonoids (PF) were rutin (RU), kaempferol-3-O-rutinoside (KA) and quercetin (QU); the content of TF is 99.81% after purification. It is more worthy of our attention that micronized flavonoids contribute more to antioxidant activity because of good solubility. These results provide a theoretical reference for the micronization of other flavonoids.
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Affiliation(s)
- Yanjie Liu
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China; (Y.L.); (S.W.); (Q.Y.)
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, China
- Heilongjiang Provincial Key Laboratory of Ecological Utilization of Forestry-Based Active Substances, Northeast Forestry University, Harbin 150040, China
| | - Xiaoyu Sui
- College of Pharmacy, Qiqihar Medical University, Qiqihar 161006, China
- Correspondence: (X.S.); (X.Z.)
| | - Xiuhua Zhao
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China; (Y.L.); (S.W.); (Q.Y.)
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, China
- Heilongjiang Provincial Key Laboratory of Ecological Utilization of Forestry-Based Active Substances, Northeast Forestry University, Harbin 150040, China
- Correspondence: (X.S.); (X.Z.)
| | - Siying Wang
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China; (Y.L.); (S.W.); (Q.Y.)
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, China
- Heilongjiang Provincial Key Laboratory of Ecological Utilization of Forestry-Based Active Substances, Northeast Forestry University, Harbin 150040, China
| | - Qilei Yang
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China; (Y.L.); (S.W.); (Q.Y.)
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, China
- Heilongjiang Provincial Key Laboratory of Ecological Utilization of Forestry-Based Active Substances, Northeast Forestry University, Harbin 150040, China
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Lyu JL, Liu YJ, Wen KC, Chiu CY, Lin YH, Chiang HM. Protective Effect of Djulis ( Chenopodium formosanum) Extract against UV- and AGEs-Induced Skin Aging via Alleviating Oxidative Stress and Collagen Degradation. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27072332. [PMID: 35408731 PMCID: PMC9000422 DOI: 10.3390/molecules27072332] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 03/30/2022] [Accepted: 03/31/2022] [Indexed: 12/18/2022]
Abstract
Skin aging is a complex process involving photoaging and glycation stress, which share some fundamental pathways and have common mediators. They can cause skin damage and collagen degradation by inducing oxidative stress and the accumulation of reactive oxygen species (ROS). Chenopodium formosanum (CF), also known as Djulis, is a traditional cereal in Taiwan. This study investigated the protection mechanisms of CF extract against ultraviolet (UV) radiation and advanced glycation end products (AGEs)-induced stress. The results indicated that CF extract had strong antioxidant and free radical scavenging effects. It could reduce UV-induced intracellular ROS generation and initiate the antioxidant defense system by activating the nuclear factor erythroid 2-related factor 2 (Nrf2)/heme oxygenase-1 (HO-1) signaling pathway in human skin fibroblasts. CF extract modulated mitogen-activated protein kinase (MAPK) and transformed growth factor-beta (TGF-β) signaling pathways to alleviate oxidative stress-induced skin aging. Moreover, the results revealed that CF extract not only promoted collagen synthesis but also improved aging-induced collagen degradation. CF extract attenuated AGEs-induced ROS production and the upregulation of receptor for AGEs (RAGE). The overall results suggest that CF extract provides an effective anti-aging strategy by preventing skin damage from oxidative stress and collagen loss with potent antioxidant, anti-photoaging, and antiglycation activities.
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Affiliation(s)
- Jia-Ling Lyu
- Ph.D. Program for Biotechnology Industry, College of Life Sciences, China Medical University, Taichung 404, Taiwan; (J.-L.L.); (Y.-J.L.)
- Department of Cosmeceutics, College of Pharmacy, China Medical University, Taichung 404, Taiwan;
- Institute of New Drug Development, College of Medicine, China Medical University, Taichung 404, Taiwan
| | - Yi-Jung Liu
- Ph.D. Program for Biotechnology Industry, College of Life Sciences, China Medical University, Taichung 404, Taiwan; (J.-L.L.); (Y.-J.L.)
- Department of Cosmeceutics, College of Pharmacy, China Medical University, Taichung 404, Taiwan;
- Department of Biological Science and Technology, College of Life Sciences, China Medical University, Taichung 404, Taiwan
| | - Kuo-Ching Wen
- Department of Cosmeceutics, College of Pharmacy, China Medical University, Taichung 404, Taiwan;
| | - Chen-Yuan Chiu
- Center of Consultation, Center for Drug Evaluation, Taipei 115, Taiwan;
| | - Yung-Hsiang Lin
- Research and Design Center, TCI Co., Ltd., Taipei 114, Taiwan;
| | - Hsiu-Mei Chiang
- Ph.D. Program for Biotechnology Industry, College of Life Sciences, China Medical University, Taichung 404, Taiwan; (J.-L.L.); (Y.-J.L.)
- Department of Cosmeceutics, College of Pharmacy, China Medical University, Taichung 404, Taiwan;
- Correspondence: ; Tel.: +886-4-2205-3366-5302
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LLabre JE, Sroga GE, Tice MJL, Vashishth D. Induction and rescue of skeletal fragility in a high-fat diet mouse model of type 2 diabetes: An in vivo and in vitro approach. Bone 2022; 156:116302. [PMID: 34952229 PMCID: PMC8792372 DOI: 10.1016/j.bone.2021.116302] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 12/15/2021] [Accepted: 12/16/2021] [Indexed: 01/12/2023]
Abstract
Poor bone quality is associated with Type 2 Diabetes (T2D), with patients having a higher risk of fracture despite normal to high bone mineral density (BMD). Diabetes contributes to modifications of the mineral and organic matrix of bone. Hyperglycemia has been linked to the formation of advanced glycation end-products (AGEs) which increase the risk for skeletal fragility fractures. To this end, we investigated diabetes-induced skeletal fragility using a high-fat diet (HFD) mouse model and evaluated the efficacy of phenacyl thiazolium chloride (PTC) for in vitro removal of glycation products to rescue bone toughness. Ten-week-old C57BL/6 J male mice (n = 6/group) were fed a HFD or low-fat diet (LFD) for 22 weeks. Mice given a HFD developed T2D and increased body mass compared to LFD-fed mice. MicroCT results showed that diabetic mice had altered microarchitecture and increased mineralization as determined by volumetric BMD and increased mineral crystal size as determined by X-ray Diffraction (XRD). Diabetic mice demonstrated loss of initiation and maximum toughness, which represent estimates of the stress intensity factor at a notch tip using yield force and ultimate force, respectively. Diabetic mice also showed higher accumulation of AGEs measured by biochemical assay (total fAGEs) and confocal Raman spectroscopy (Pentosidine (PEN), Carboxymethyl-lysine (CML)). Regression analyses confirmed the association between increased glycoxidation (CML, PEN) and loss of fracture toughness. Within the diabetic group, CML was the most significant predictor of initiation toughness while PEN predicted maximum toughness as determined by stepwise linear regression (i.e., stepAIC). Contralateral femora from HFD group were harvested and treated with PTC in vitro. PTC-treated samples showed total fAGEs decreased by 41.2%. PTC treatment partially restored bone toughness as, compared to T2D controls, maximum toughness increased by 35%. Collectively, our results demonstrate that matrix modifications in diet-induced T2D, particularly AGEs, induce bone fragility and their removal from bone matrix partially rescues T2D associated bone fragility.
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Affiliation(s)
- Joan E LLabre
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY, USA; Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA
| | - Grażyna E Sroga
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY, USA; Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA
| | - Matthew J L Tice
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY, USA; Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA
| | - Deepak Vashishth
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY, USA; Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA.
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Ethanolic Fenugreek Extract: Its Molecular Mechanisms against Skin Aging and the Enhanced Functions by Nanoencapsulation. Pharmaceuticals (Basel) 2022; 15:ph15020254. [PMID: 35215366 PMCID: PMC8879298 DOI: 10.3390/ph15020254] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/11/2022] [Accepted: 02/16/2022] [Indexed: 12/30/2022] Open
Abstract
Fenugreek, or Trigonella foenum-graecum L. (family Leguminosae) seeds, are typically used as food supplements to increase postnatal lactation. Fenugreek extract displays antioxidative and anti-inflammatory properties, but its mechanisms against skin aging have not been exploited. In this research, we are the first to define an in vitro collagenase inhibitory activity of fenugreek extract (IC50 = 0.57 ± 0.02 mg/mL), which is 2.6 times more potent than vitamin C (IC50 = 1.46 mg/mL). Nanoencapsulation has been applied to improve the extract stability, and subsequently enhanced its bioactivities. Liponiosome encapsulating fenugreek extract (LNF) was prepared using a high-speed homogenizer, resulting in homogeneous spherical nanoparticles with sizes in the range of 174.7 ± 49.2 nm, 0.26 ± 0.04 in PdI, and 46.6 ± 7.4% of entrapment efficiency. LNF formulation significantly facilitated a sustained release and significantly enhanced skin penetration over the extracts, suggesting a potential use of LNF for transdermal delivery. The formulated LNF was highly stable, not toxic to human fibroblast, and was able to enhance cell viability, collagen production, and inhibit MMP1, MMP9, IL-6, and IL-8 secretions compared to the extract in the co-cultured skin model. Therefore, ethanolic fenugreek extract and its developed LNF display molecular mechanisms against skin aging and could potentially be used as an innovative ingredient for the prevention of skin aging.
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12
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Panda V, Bhandare N, Mistry K, S S, Dande P. Cardioprotective potential of Spinacia oleracea (Spinach) against isoproterenol-induced myocardial infarction in rats. Arch Physiol Biochem 2022; 128:101-110. [PMID: 31522557 DOI: 10.1080/13813455.2019.1665074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
CONTEXT Spinacia oleracea is rich in antioxidant phyto-constituents, termed as the natural antioxidant mixture (NAO). OBJECTIVE This study investigates the cardioprotective effect of an antioxidant-rich extract of Spinacia oleracea (NAOE) and its phytoconstituent rutin in isoproterenol (ISO)-induced myocardial infarction in rats. METHODS Rats were treated with NAOE (400 and 800 mg/kg), rutin (50 mg/kg) and the reference drug gemfibrozil (50 mg/kg) daily for 30 days and were administered ISO (85 mg/kg, s.c) on the last 2 days. RESULTS NAOE treatment attenuated the ISO-elevated levels of serum marker enzymes (AST, LDH and CPK), troponin I, total cholesterol, triglycerides, uric acid, CRP, TNF-α, IL-6 and malondialdehyde. It also restored the ISO-skewed ECG and systolic blood pressure, and the ISO-depleted marker enzymes and endogenous antioxidants in all treated rats. CONCLUSION It may be concluded that NAOE treatment to ISO-challenged rats exhibited significant cardioprotective effect probably due to the potent antioxidant activity of its NAO.
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Affiliation(s)
- Vandana Panda
- Department of Pharmacology and Toxicology, Prin. K. M. Kundnani College of Pharmacy, Mumbai, India
| | - Nikhil Bhandare
- Department of Pharmacology and Toxicology, Prin. K. M. Kundnani College of Pharmacy, Mumbai, India
| | - Kinjal Mistry
- Department of Pharmacology and Toxicology, Prin. K. M. Kundnani College of Pharmacy, Mumbai, India
| | - Sudhamani S
- Department of Pathology, Dr. D.Y. Patil Medical College, Navi Mumbai, India
| | - Payal Dande
- Department of Pharmacognosy, SVKM's NMIMS, School of Pharmacy and Technology Management, Shirpur, India
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Golchinfar Z, Farshi P, Mahmoudzadeh M, Mohammadi M, Tabibiazar M, Smith JS. Last Five Years Development In Food Safety Perception of n-Carboxymethyl Lysine. FOOD REVIEWS INTERNATIONAL 2021. [DOI: 10.1080/87559129.2021.2011909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Zahra Golchinfar
- Student Research Committee, Tabriz University of Medical Science, Tabriz, Iran and Faculty of Nutrition and Food Science, Tabriz University of Medical Science, Tabriz, Iran
| | - Parastou Farshi
- Institute of Food Science, Kansas State University, Manhattan, Kansas, USA
| | - Maryam Mahmoudzadeh
- Faculty of Nutrition and Food Science, Tabriz University of Medical Science, Tabriz, Iran
| | - Maryam Mohammadi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahnaz Tabibiazar
- Faculty of Nutrition and Food Science, Tabriz University of Medical Science, Tabriz, Iran
| | - J. Scott Smith
- Institute of Food Science, Kansas State University, Manhattan, Kansas, USA
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14
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Influence of In Vitro Human Digestion Simulation on the Phenolics Contents and Biological Activities of the Aqueous Extracts from Turkish Cistus Species. Molecules 2021; 26:molecules26175322. [PMID: 34500753 PMCID: PMC8434344 DOI: 10.3390/molecules26175322] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/26/2021] [Accepted: 08/30/2021] [Indexed: 11/16/2022] Open
Abstract
Oxidative stress is one of the significant precursors of various metabolic diseases such as diabetes, Parkinson's disease, cardiovascular diseases, cancer, etc. Various scientific reports have indicated that secondary plant metabolites play an important role in preventing oxidative stress and its harmful effects. In this respect, this study was planned to investigate the phenolic profile and antioxidant and antidiabetic potentials of the aqueous extracts from Turkish Cistus species by employing in vitro methods. In vitro digestion simulation procedure was applied to all extracts to estimate the bioavailability of their phenolic contents. Total phenolic, flavonoid, phenolic acid and proanthocyanidin contents were determined for all phases of digestion. In addition, changes in the quantity of the assigned marker flavonoids (tiliroside, hyperoside and quercitrin) were monitored by High-Performance Thin Layer Chromatography (HPTLC) analysis. The antioxidant activity potentials of the extracts were studied by various methods to reveal their detailed activity profiles. On the other hand, in vitro α-amylase and α-glucosidase enzymes and advanced-glycation end product (AGE) inhibitory activities of the extracts were determined to evaluate the antidiabetic potentials of extracts. The results showed that aqueous extracts obtained from the aerial parts of Turkish Cistus species have rich phenolic contents and potential antioxidant and antidiabetic activities; however, their bioactivity profiles and marker flavonoid concentrations might significantly be affected by human digestion. The results exhibited that total phenolic contents, antioxidant activities and diabetes-related enzyme inhibitions of the bioavailable samples were lower than non-digested samples in all extracts.
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15
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Li T, Yang Y, Wang X, Dai W, Zhang L, Piao C. Flavonoids derived from buckwheat hull can break advanced glycation end-products and improve diabetic nephropathy. Food Funct 2021; 12:7161-7170. [PMID: 34169956 DOI: 10.1039/d1fo01170g] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Diabetic nephropathy (DN) is the most important complication in patients with diabetes. The accumulation of advanced glycation end-products (AGEs) is the main reason for the development of DN. In this study, we investigated the mechanism of buckwheat hull flavonoids to break AGEs in vitro by measuring fluorescence analysis, three-dimensional fluorescence, protein molecular weight, free amino groups, and the sulfhydryl group content. Proteomics analysis was used to determine the effect of total buckwheat hull flavonoids (TBHF) intervention on protein differential expression in the kidney of db/db mice. The results showed that buckwheat hull flavonoids were potent in breaking AGEs in vitro, and they protected mice kidneys by regulating the renal AGE-RAGE pathway. This study lays a strong experimental and theoretical foundation for the development of new lysing agents to break AGEs. The findings should make an important contribution to the field of flavonoids in improving the application of diabetic nephropathy in the diet.
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Affiliation(s)
- Tianzhu Li
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, 130118, Jilin, China.
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16
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Dietary polyphenols inhibit plasma protein arabinosylation: Biomolecular interaction of genistein and ellagic acid with serum albumins. Biophys Chem 2021; 277:106651. [PMID: 34217110 DOI: 10.1016/j.bpc.2021.106651] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 06/22/2021] [Accepted: 06/22/2021] [Indexed: 01/08/2023]
Abstract
The mode of interaction of polyphenolic compounds like genistein (GTN) and ellagic acid (EGA) with human and bovine serum albumin (HSA and BSA, respectively) was found to differ significantly. Stern-Volmer (SV) analysis of the fluorescence quenching data revealed that the binding strength of EGA (1.9 ± 0.09 × 105 M-1) to HSA is about one order of magnitude higher than GTN (2.24 ± 0.06 × 104 M-1). While the static quenching of HSA fluorescence was found to proceed through simple Stern-Volmer (SV) mechanism, a quenching sphere-of-action model was indispensable for BSA. Temperature dependent fluorescence along with a series of other biophysical experiments and ensemble docking calculation revealed that EGA and GTN bind to the serum proteins primarily through the entropy driven process. The α-helical content and the microenvironment near Trp residue of HSA and BSA did not show any appreciable change due to the binding of either GTN or EGA. Interestingly, both GTN and EGA were found to inhibit the formation of advanced glycated end (AGE) product of serum proteins up to the extent of 70-90% within 12-24 h. Relatively moderate binding propensity along with the anti-glycation ability of the polyphenols confirmed that GTN and EGA can be used either as an alternative or towards development of suitable drugs in the prevention of many diabetic-related complications.
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17
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Al Jaseem MAJ, Abdullah KM, Qais FA, Shamsi A, Naseem I. Mechanistic insight into glycation inhibition of human serum albumin by vitamin B9: Multispectroscopic and molecular docking approach. Int J Biol Macromol 2021; 181:426-434. [PMID: 33775768 DOI: 10.1016/j.ijbiomac.2021.03.153] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 03/09/2021] [Accepted: 03/23/2021] [Indexed: 10/21/2022]
Abstract
Advanced glycation end products (AGEs) formation produces free radicals that play a role in diabetes mellitus; hence inhibition of glycation plays a part in minimizing diabetes-related complications. This study was intended to examine the AGEs formation of HSA upon prolonged incubation of 28 days at 37 °C and further investigate the antiglycation potential of folic acid (FA). FA shows a significant binding affinity to the HSA with a binding constant (K) of 104 M-1. The evaluation of enthalpy change (∆H0) and entropy change (∆So) implied that the HSA-FA complex is stabilized primarily by hydrophobic interaction and hydrogen bonding. Molecular docking analysis depicted that FA binds with HSA in subdomain IIA (Sudlow's site I) with a binding energy of -7.0 kcal mol-1. AGEs were characterized by free lysine and thiol groups, carbonyl content, and AGEs specific fluorescence. The presence of FA significantly decreased glycation from free lysine and carbonyl content estimation and AGEs specific fluorescence. Multispectroscopic observations and molecular docking and examination of various biomarkers demonstrate the antiglycation activity of FA and its capacity to prevent disease progression in diabetes.
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Affiliation(s)
| | - K M Abdullah
- Department of Biochemistry, Jain University, Bengaluru, India
| | - Faizan Abul Qais
- Department of Agricultural Microbiology, Aligarh Muslim University, India
| | - Anas Shamsi
- Centre of Medical and Bio-Allied Health Sciences Research, Ajman University, United Arab Emirates; Center for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Imrana Naseem
- Department of Biochemistry, F/O Life Sciences, Aligarh Muslim University, India.
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18
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Rock CA, Keeney S, Zakharchenko A, Takano H, Spiegel DA, Krieger AM, Ferrari G, Levy RJ. Model studies of advanced glycation end product modification of heterograft biomaterials: The effects of in vitro glucose, glyoxal, and serum albumin on collagen structure and mechanical properties. Acta Biomater 2021; 123:275-285. [PMID: 33444798 DOI: 10.1016/j.actbio.2020.12.053] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 12/17/2020] [Accepted: 12/22/2020] [Indexed: 01/01/2023]
Abstract
Glutaraldehyde cross-linked heterograft tissues, bovine pericardium (BP) or porcine aortic valves, are the leaflet materials in bioprosthetic heart valves (BHV) used in cardiac surgery for heart valve disease. BHV fail due to structural valve degeneration (SVD), often with calcification. Advanced glycation end products (AGE) are post-translational, non-enzymatic reaction products from sugars reducing proteins. AGE are present in SVD-BHV clinical explants and are not detectable in un-implanted BHV. Prior studies modeled BP-AGE formation in vitro with glyoxal, a glucose breakdown product, and serum albumin. However, glucose is the most abundant AGE precursor. Thus, the present studies investigated the hypothesis that BHV susceptibility to glucose related AGE, together with serum proteins, results in deterioration of collagen structure and mechanical properties. In vitro experiments studied AGE formation in BP and porcine collagen sponges (CS) comparing 14C-glucose and 14C-glyoxal with and without bovine serum albumin (BSA). Glucose incorporation occurred at a significantly lower level than glyoxal (p<0.02). BSA co-incubations demonstrated reduced glyoxal and glucose uptake by both BP and CS. BSA incubation caused a significant increase in BP mass, enhanced by glyoxal co-incubation. Two-photon microscopy of BP showed BSA induced disruption of collagen structure that was more severe with glucose or glyoxal co-incubation. Uniaxial testing of CS demonstrated that glucose or glyoxal together with BSA compared to controls, caused accelerated deterioration of viscoelastic relaxation, and increased stiffness over a 28-day time course. In conclusion, glucose, glyoxal and BSA uniquely contribute to AGE-mediated disruption of heterograft collagen structure and deterioration of mechanical properties.
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Affiliation(s)
- Christopher A Rock
- Division of Cardiology, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, 19104, United States
| | - Samuel Keeney
- Division of Cardiology, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, 19104, United States
| | - Andrey Zakharchenko
- Division of Cardiology, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, 19104, United States
| | - Hajime Takano
- Division of Neurology, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, 19104, United States
| | - David A Spiegel
- Department of Chemistry, Yale University, New Haven, CT, 06520, United States
| | - Abba M Krieger
- Department of Statistics, The Wharton School, University of Pennsylvania, Philadelphia, PA, 19104, United States
| | - Giovanni Ferrari
- Departments of Surgery and Biomedical Engineering, Columbia University, New York, NY, 10032, United States
| | - Robert J Levy
- Division of Cardiology, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, 19104, United States.
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19
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Antioxidant and Antiglycation Effects of Polyphenol Compounds Extracted from Hazelnut Skin on Advanced Glycation End-Products (AGEs) Formation. Antioxidants (Basel) 2021; 10:antiox10030424. [PMID: 33802107 PMCID: PMC7999557 DOI: 10.3390/antiox10030424] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/03/2021] [Accepted: 03/04/2021] [Indexed: 11/16/2022] Open
Abstract
The advanced glycation end-products (AGEs) arise from non-enzymatic reactions of sugar with protein side chains, some of which are oxido-reductive in nature. Enhanced production of AGEs plays an important role in the pathogenesis of diabetic complications as well as in natural aging, renal failure, oxidative stress, and chronic inflammation. The aim of this work is to study antiglycation effects of polyphenol compounds extracted by hazelnut skin that represents an example of polyphenols-rich food industry by-product, on AGEs formation. AGEs derived from incubation of bovine serum albumin (BSA) and methylglyoxal (MGO) were characterized by fluorescence. The phenolics identification and total polyphenol content in hazelnut skin extracts were analyzed by HPLC-MS and the Folin–Ciocalteu method, respectively. Antioxidant efficacy was evaluated by monitoring total antioxidant activity to assess the ABTS radical scavenging activity of samples by TEAC assay and oxygen radical absorbance capacity (ORAC) assay, expressed as millimoles of Trolox equivalents per gram of sample. Data here presented suggest that phenolic compounds in hazelnut skin have an inhibitory effect on the BSA-AGEs model in vitro, and this effect is concentration-dependent. The putative role of the hazelnut skin antioxidative properties for hindering AGEs formation is also discussed. Because of AGEs contribution to the pathogenesis of several chronic diseases, foods enriched, or supplements containing natural bioactive molecules able to inhibit their production could be an interesting new strategy for supporting therapeutic approaches with a positive effect on human health.
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20
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Azad MOK, Adnan M, Sung IJ, Lim JD, Baek J, Lim YS, Park CH. Development of value‐added functional food by fusion of colored potato and buckwheat flour through hot‐melt extrusion. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15312] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Md Obyedul Kalam Azad
- Department of Bio‐Health Technology College of Biomedical Science Kangwon National University Chuncheon Korea
| | - Md. Adnan
- Department of Bio‐Health Convergence College of Biomedical Science Kangwon National University Chuncheon Korea
| | - In Je Sung
- Department of Bio‐Health Technology College of Biomedical Science Kangwon National University Chuncheon Korea
| | - Jung Dae Lim
- Department of Herbal Medicine Resource Kangwon National University Samcheok Korea
| | - Jong‐Suep Baek
- Department of Herbal Medicine Resource Kangwon National University Samcheok Korea
| | - Young Seok Lim
- Department of Bio‐Health Convergence College of Biomedical Science Kangwon National University Chuncheon Korea
- Valley Food Tec. Eden ID USA
| | - Cheol Ho Park
- Department of Bio‐Health Technology College of Biomedical Science Kangwon National University Chuncheon Korea
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21
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Błaszczak W, Latocha P, Jeż M, Wiczkowski W. The impact of high-pressure processing on the polyphenol profile and anti-glycaemic, anti-hypertensive and anti-cholinergic activities of extracts obtained from kiwiberry (Actinidia arguta) fruits. Food Chem 2020; 343:128421. [PMID: 33268172 DOI: 10.1016/j.foodchem.2020.128421] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 09/14/2020] [Accepted: 10/14/2020] [Indexed: 11/25/2022]
Abstract
This study analysed the impact of high pressure processing (HHP) on the inhibitory effects (IC50) of kiwiberries (cv. 'Weiki'), on the formation of advanced glycation end-products (AGEs) and the activity of angiotenisn-converting enzyme (ACE) and the enzyme acetylcholinesterase (AChE). The polyphenol profile (HPLC-MS/MS) and antioxidant capacity (PCLACW, ABTS, FRAP) were also studied. HHP-treated 'Weiki' (450 MPa/5 min and 650 MPa/5 min) was the most potent inhibitor of AGEs in the BSA-GLU model (6.52 mg/mL on average) relative to other materials (12.09-7.21 mg/mL). Among all samples assayed in the BSA-MGO model (61.97-14.48 mg/mL), HHP-treated 'Weiki' (450 MPa/5 min) showed the highest anti-AGE activity (12.37 mg/mL). Pressurization (450 MPa/5 min) significantly enhanced the anti-ACE (14.09 mg/mL) and anti-AChE (16.95 mg/mL) potentials of the tested extract relative to the other materials (23.75-14.50 mg/mL and 37.88-19.69 mg/mL, respectively). Pressurization increased polyphenol content and antioxidant capacity of the samples analysed.
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Affiliation(s)
- Wioletta Błaszczak
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland.
| | - Piotr Latocha
- Institute of Horticulture Sciences, Warsaw University of Life Sciences - SGGW, Nowoursynowska 166, 02-787 Warsaw, Poland.
| | - Maja Jeż
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland.
| | - Wiesław Wiczkowski
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland.
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22
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Healthy eating recommendations: good for reducing dietary contribution to the body's advanced glycation/lipoxidation end products pool? Nutr Res Rev 2020; 34:48-63. [PMID: 32450931 DOI: 10.1017/s0954422420000141] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The present review aims to give dietary recommendations to reduce the occurrence of the Maillard reaction in foods and in vivo to reduce the body's advanced glycation/lipoxidation end products (AGE/ALE) pool. A healthy diet, food reformulation and good culinary practices may be feasible for achieving the goal. A varied diet rich in fresh vegetables and fruits, non-added sugar beverages containing inhibitors of the Maillard reaction, and foods prepared by steaming and poaching as culinary techniques is recommended. Intake of supplements and novel foods with low sugars, low fats, enriched in bioactive compounds from food and waste able to modulate carbohydrate metabolism and reduce body's AGE/ALE pool is also recommended. In conclusion, the recommendations made for healthy eating by the Spanish Society of Community Nutrition (SENC) and Harvard University seem to be adequate to reduce dietary AGE/ALE, the body's AGE/ALE pool and to achieve sustainable nutrition and health.
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23
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Inhibitory effect of phenolic compounds and plant extracts on the formation of advance glycation end products: A comprehensive review. Food Res Int 2020; 130:108933. [DOI: 10.1016/j.foodres.2019.108933] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 12/16/2019] [Accepted: 12/17/2019] [Indexed: 12/22/2022]
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24
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Freitas LD, Valli M, Dametto AC, Pennacchi PC, Andricopulo AD, Maria-Engler SS, Bolzani VS. Advanced Glycation End Product Inhibition by Alkaloids from Ocotea paranapiacabensis for the Prevention of Skin Aging. JOURNAL OF NATURAL PRODUCTS 2020; 83:649-656. [PMID: 32134650 DOI: 10.1021/acs.jnatprod.9b01083] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A bioassay-guided study aiming at identifying inhibitors of the glycation process on the leaves of Ocotea paranapiacabensis afforded four benzylisoquinoline alkaloids (1-4), with 1 and 2 identified as new naturals products, while 3 and 4 were previously described in the literature, with 3 being identified as magnocurarine. Purification was performed by column chromatography and high-performance liquid chromatography. The structures of the isolated compounds were elucidated by spectroscopic methods including UV, NMR, and HRMS. The process of skin aging has been recently associated with advanced glycation end products (AGEs), and strategies inhibiting their formation have been addressed by pharmaceutical companies for the development of novel antiaging compounds. Alkaloids 1-4 were evaluated for their potential to inhibit AGE formation and showed inhibition of 62.9%, 83.3%, 26.1%, and 98.2% (150 μM), respectively. The antiaging potential of compounds 1 and 4 were evaluated with a reconstructed human skin model in vitro, and results showed a decrease in dermis contraction (8.7% and 4.2% respectively for 1 and 4) when compared to the glycated control (57.4%). Additionally, absorption, distribution, metabolism, and excretion (ADME) and toxicity properties were predicted using in silico methods, and the results were considered significantly promising for alkaloids 1 and 4 to continue the development of these alkaloids with skincare properties.
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Affiliation(s)
- Larissa de Freitas
- Nuclei of Bioassays, Biosynthesis and Ecophysiology of Natural Products (NuBBE), Department of Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), Avenida Prof. Francisco Degni, 55, Araraquara, SP, Brazil
| | - Marilia Valli
- Nuclei of Bioassays, Biosynthesis and Ecophysiology of Natural Products (NuBBE), Department of Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), Avenida Prof. Francisco Degni, 55, Araraquara, SP, Brazil
- Laboratory of Medicinal and Computational Chemistry (LQMC), Centre for Research and Innovation in Biodiversity and Drug Discovery (CIBFar), Institute of Physics of São Carlos, University of São Paulo (USP), Avenida João Dagnone, no. 1100, São Carlos, SP, Brazil
| | - Alessandra C Dametto
- Nuclei of Bioassays, Biosynthesis and Ecophysiology of Natural Products (NuBBE), Department of Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), Avenida Prof. Francisco Degni, 55, Araraquara, SP, Brazil
- Federal Institute of Education, Science and Technology of São Paulo, Rua Stéfano D'avassi, no. 625, Matão, SP, Brazil
| | - Paula C Pennacchi
- Department of Clinical and Toxicological Analysis, Faculty of Pharmaceutical Sciences, University of São Paulo (USP), São Paulo, Brazil
| | - Adriano D Andricopulo
- Laboratory of Medicinal and Computational Chemistry (LQMC), Centre for Research and Innovation in Biodiversity and Drug Discovery (CIBFar), Institute of Physics of São Carlos, University of São Paulo (USP), Avenida João Dagnone, no. 1100, São Carlos, SP, Brazil
| | - Silvya S Maria-Engler
- Department of Clinical and Toxicological Analysis, Faculty of Pharmaceutical Sciences, University of São Paulo (USP), São Paulo, Brazil
| | - Vanderlan S Bolzani
- Nuclei of Bioassays, Biosynthesis and Ecophysiology of Natural Products (NuBBE), Department of Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), Avenida Prof. Francisco Degni, 55, Araraquara, SP, Brazil
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25
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Zhang D, Wang Y, Liu H. Corn silk extract inhibit the formation of Nε-carboxymethyllysine by scavenging glyoxal/methyl glyoxal in a casein glucose-fatty acid model system. Food Chem 2020; 309:125708. [DOI: 10.1016/j.foodchem.2019.125708] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 10/13/2019] [Accepted: 10/13/2019] [Indexed: 01/20/2023]
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26
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Polyphenols and inhibitory effects of crude and purified extracts from tomato varieties on the formation of advanced glycation end products and the activity of angiotensin-converting and acetylcholinesterase enzymes. Food Chem 2020; 314:126181. [PMID: 31954938 DOI: 10.1016/j.foodchem.2020.126181] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 01/08/2020] [Accepted: 01/08/2020] [Indexed: 02/06/2023]
Abstract
The study analyzed the inhibitory effects (IC50) of crude and purified extracts from Maliniak, Cerise, Black Prince and Lima tomatoes on the formation of advanced glycation end products (AGEs), the activity of angiotensin-converting (ACE) and acetylcholinesterase (AChE) enzymes. Polyphenol composition (LC-MS) and antioxidant capacity (PCL, FRAP) were measured. The purified extracts of Black Prince tomatoes were the most potent inhibitors of AGEs in BSA-GLU (7.20mg/mL) and BSA-MGO (9.53mg/mL) models. The purified extracts of Cerise and Black Prince tomatoes had the highest ACE (0.50-0.44mg/mL) and AChE (7.93-5.83mg/mL) inhibitory activity. Cerise variety showed the highest polyphenol concentrations in crude (488.93μg/g DM) and purified (8394.99μg/g DM) extracts. The highest PCLACW and FRAP values were found for Cerise purified extracts (71.83 and 87.78μmol Trolox/g DM). Caffeic acid, caffeoyl-glucose, linocaffein, glucosyl-coumarate, vanillic acid, rutin and TPI values were significantly correlated with BSA-MGO, anti-ACE, anti-AChE and PCLACW parameters.
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27
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Modulated Protein Binding Ability of Anti-Diabetic Drugs in Presence of Monodispersed Gold Nanoparticles and its Inhibitory Potential towards Advanced Glycated End (AGE) Product Formation. J Fluoresc 2020; 30:193-204. [DOI: 10.1007/s10895-019-02485-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 12/26/2019] [Indexed: 12/31/2022]
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28
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Abidar S, Yildiz O, Degirmenci A, Amakran A, El Maadoudi M, Nhiri M. Glucose-mediated protein glycation: Contribution of methanolic extract of Ceratonia siliqua L. in protection and in vitro potential inhibition of acetylcholinesterase. J Food Biochem 2019; 43:e13009. [PMID: 31393019 DOI: 10.1111/jfbc.13009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 07/02/2019] [Accepted: 07/12/2019] [Indexed: 01/11/2023]
Abstract
Chronic hyperglycemia presents the major etiology of diabetes mellitus and related complications mainly Alzheimer's disease, via the protein glycation and toxic products generated. In the current study, we investigated the eventual protective effect of the methanolic extract of Ceratonia siliqua L. (CsME) against glucose-mediated glycation in serum bovine albumin. The multi-stage glycation markers, namely fructosamines and advanced glycation end products (AGEs) levels were monitored along with measurement of thiol groups; moreover, the in vitro acetylcholinesterase (AChE) inhibition potential was carried out. HPLC was also assessed. Rutin was the main phenolic compound found in CsME. CsME showed a good capacity to inhibit AGEs, fructosamines and protected thiol groups against glycation. CsME exhibited a great AChE inhibition activity. In the present study, CsME prevented glucose-induced protein glycation, it also exhibited a good inhibition of AChE, suggesting its DM complications such as memory troubles related to AD. PRACTICAL APPLICATIONS: Neurodegenerative disorders ranging from memory troubles to Alzheimer's disease present the most diabetes mellitus complications and mainly attributed to protein glycation process. Currently, there is a strong trend to search for efficient natural sources of glycation and acetylcholinesterase inhibitors to replace the synthetic ones, whose secondary effects were shown. The present article tries to justify scientifically the wide use of Ceratonia siliqua L. in Moroccan folk medicine, demonstrating that the methanolic extract of leaves from this species presents a promising source of new natural compounds inhibiting acetylcholinesterase and acting in vitro against glycation generated compounds. Furthermore, for the first time, Rutin was the main phenolic compound found in this extract, these encouraging results should be coupled with further studies to integrate it in pharmaceutical formulations. As such, this paper should be of interest to a broad readership, including those interested in Biochemistry, Phytochemistry, pharmacology, and neurosciences.
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Affiliation(s)
- Sara Abidar
- Laboratoire de Biochimie et Génétique Moléculaire, Faculté des Sciences et Techniques, Université Abdelmalek Essaâdi, Tanger Principal, Morocco
| | - Oktay Yildiz
- Maçka VHS, Department of Food Processing, Karadeniz Technical University, Trabzon, Turkey
| | - Atiye Degirmenci
- Maçka VHS, Department of Food Processing, Karadeniz Technical University, Trabzon, Turkey
| | - Amina Amakran
- Laboratoire de Biochimie et Génétique Moléculaire, Faculté des Sciences et Techniques, Université Abdelmalek Essaâdi, Tanger Principal, Morocco
| | - Mohammed El Maadoudi
- Laboratoire Régional d'Analyses et de Recherches de l'ONSSA (office national de sécurité sanitaire des produits alimentaires), Tanger, Maroc
| | - Mohamed Nhiri
- Laboratoire de Biochimie et Génétique Moléculaire, Faculté des Sciences et Techniques, Université Abdelmalek Essaâdi, Tanger Principal, Morocco
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Khan A, Khan A, Farooq U, Taha M, Shah SAA, Halim SA, Akram A, Khan MZ, Jan AK, Al-Harrasi A. Oxindole-based chalcones: synthesis and their activity against glycation of proteins. Med Chem Res 2019. [DOI: 10.1007/s00044-019-02345-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Baijiu Vinasse Extract Scavenges Glyoxal and Inhibits the Formation of Nε-Carboxymethyllysine in Dairy Food. Molecules 2019; 24:molecules24081526. [PMID: 31003408 PMCID: PMC6514854 DOI: 10.3390/molecules24081526] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 04/16/2019] [Accepted: 04/17/2019] [Indexed: 11/17/2022] Open
Abstract
The inhibitory effects of baijiu vinasse extract and its phenolic acid compounds on the Nε-carboxymethyllysine (CML) formation from dairy food were investigated. The inhibitory effect of the baijiu vinasse extract against CML formation was 43.2% in the casein and D-glucose model, which used 6 mL of the 70% acetone extract at 60 °C for 40 min. The HPLC-MS/MS profiles of the vinasse extract indicated that vanillic, chlorogenic, p-coumaric, sinapic, caffeic, ferulic, and syringic acids were seven major phenolic acid compounds. Furthermore, the inhibitory mechanism of the phenolic acid compounds in the model of dairy food was discussed by the trapping and scavenging of glyoxal. The results of this study exhibit that seven major antioxidant phenolic acid compounds may play important roles in the antioxidant activity and CML inhibition of the vinasse extract in a model of dairy foods.
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Luca SV, Macovei I, Bujor A, Miron A, Skalicka-Woźniak K, Aprotosoaie AC, Trifan A. Bioactivity of dietary polyphenols: The role of metabolites. Crit Rev Food Sci Nutr 2019; 60:626-659. [PMID: 30614249 DOI: 10.1080/10408398.2018.1546669] [Citation(s) in RCA: 323] [Impact Index Per Article: 64.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A polyphenol-rich diet protects against chronic pathologies by modulating numerous physiological processes, such as cellular redox potential, enzymatic activity, cell proliferation and signaling transduction pathways. However, polyphenols have a low oral bioavailability mainly due to an extensive biotransformation mediated by phase I and phase II reactions in enterocytes and liver but also by gut microbiota. Despite low oral bioavailability, most polyphenols proved significant biological effects which brought into attention the low bioavailability/high bioactivity paradox. In recent years, polyphenol metabolites have attracted great interest as many of them showed similar or higher intrinsic biological effects in comparison to the parent compounds. There is a huge body of literature reporting on the biological functions of polyphenol metabolites generated by phase I and phase II metabolic reactions and gut microbiota-mediated biotransformation. In this respect, the review highlights the pharmacokinetic fate of the major dietary polyphenols (resveratrol, curcumin, quercetin, rutin, genistein, daidzein, ellagitannins, proanthocyanidins) in order to further address the efficacy of biometabolites as compared to parent molecules. The present work strongly supports the contribution of metabolites to the health benefits of polyphenols, thus offering a better perspective in understanding the role played by dietary polyphenols in human health.
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Affiliation(s)
- Simon Vlad Luca
- Department of Pharmacognosy Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy Iasi, Iasi, Romania.,Department of Pharmacognosy with Medicinal Plant Unit, Faculty of Pharmacy with Medical Analytics Division, Medical University of Lublin, Lublin, Poland
| | - Irina Macovei
- Department of Pharmacognosy Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy Iasi, Iasi, Romania
| | - Alexandra Bujor
- Department of Pharmacognosy Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy Iasi, Iasi, Romania
| | - Anca Miron
- Department of Pharmacognosy Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy Iasi, Iasi, Romania
| | - Krystyna Skalicka-Woźniak
- Department of Pharmacognosy with Medicinal Plant Unit, Faculty of Pharmacy with Medical Analytics Division, Medical University of Lublin, Lublin, Poland
| | - Ana Clara Aprotosoaie
- Department of Pharmacognosy Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy Iasi, Iasi, Romania
| | - Adriana Trifan
- Department of Pharmacognosy Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy Iasi, Iasi, Romania
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32
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Singh IR, Mitra S. Interaction of chlorpropamide with serum albumin: Effect on advanced glycated end (AGE) product fluorescence. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 206:569-577. [PMID: 30189383 DOI: 10.1016/j.saa.2018.08.055] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Revised: 08/17/2018] [Accepted: 08/27/2018] [Indexed: 06/08/2023]
Abstract
Carrier proteins like bovine or human serum albumin (BSA and HSA, respectively) are prone to glycation as compared to the other available proteins. In this study, reducing sugars such as l-arabinose (ara), d-(-) galactose (gal) and d-(-) fructose (fru) were used to create model glycated serum albumins and binding ability of these with well-known antidiabetic drug chlorpropamide (CPM) was monitored. Fluorescence quenching experiment revealed that interaction of CPM with native as well as glycated albumins undergoes through a ground state complex formation. CPM binds strongly to glycated HSA with arabinose (gHSAara) as compared to other glycated systems and to the native proteins. CPM interacts through Van der Waals and hydrogen bonding interaction to glycated BSA by d-(-) fructose (gBSAfru) and also with native HSA; whereas, it's interaction with BSA and others glycated systems like gBSAara, gBSAgal and gHSAara occurs primarily through hydrophobic interaction. CPM showed an enhancement in the production of the advanced glycated end products (AGE) in all the glycated proteins. The difference in the binding capability of CPM to differently glycated albumins could be a major model to understand the drug carrying capacity of the glycated serum albumins.
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Affiliation(s)
- Imocha Rajkumar Singh
- Centre for Advanced Studies in Chemistry, North-Eastern Hill University, Shillong 793 022, India
| | - Sivaprasad Mitra
- Centre for Advanced Studies in Chemistry, North-Eastern Hill University, Shillong 793 022, India.
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33
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Growth Performance, Antioxidant Capacity, Lipid-Related Transcript Expression and the Economics of Broiler Chickens Fed Different Levels of Rutin. Animals (Basel) 2018; 9:ani9010007. [PMID: 30583506 PMCID: PMC6357029 DOI: 10.3390/ani9010007] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 12/18/2018] [Accepted: 12/20/2018] [Indexed: 02/07/2023] Open
Abstract
Simple Summary Poultry makes a substantial contribution to food security and nutrition. A growing human population and rising incomes have resulted in an increased demand for white meat. Poultry is the fastest growing animal production sector. Rutin, a natural growth and health promoter, was used at three levels for broiler feed (0.25, 0.5 or 1 g rutin/kg). Supplementing broiler diets with rutin, especially at 1 g/kg, has a variety of growth-promoting effects. It enhances antioxidant capacity and suppresses lipogenesis, thereby reducing fat deposition and serum lipid levels. The results demonstrate that the observed benefits can be achieved without compromising economic profits. Abstract The effects of rutin on growth performance, hematological and biochemical profiles, antioxidant capacity, economics and the relative expression of selected antioxidants and lipid-related genes were studied in broiler chickens over 42 days. A total of 200 one-day-old female Ross-308 broiler chickens were distributed into four groups, with five replicates of 10 individuals per replicate. They were fed with 0 (control), 0.25, 0.5 or 1 g rutin/kg supplementation in their basal diet. Dietary rutin supplementation, especially the 1 g/kg diet, increased body weight gain, the protein efficiency ratio (p < 0.001) and both white blood cell and lymphocyte counts (p < 0.001). However, it had no effect on total protein, albumin, globulin, or alanine transaminase. A high concentration of rutin (0.5 and 1 g/kg) also significantly reduced serum total cholesterol, triacylglycerol and low-density lipoprotein cholesterol concentrations (p < 0.001), as well as malondialdehyde concentrations (p = 0.001). A high concentration diet also increased the activity of superoxide dismutase, catalase and glutathione peroxidase. Of the lipid-related genes examined, acetyl CoA carboxylase and fatty acid synthase were significantly down-regulated in the livers of rutin-fed individuals, whereas carnitine palmitoyl transferase 1 and peroxisome proliferator-activated receptor alpha were significantly up-regulated. Therefore, rutin supplementation at 1 g/kg has the potential to improve the productive performance and health status of broiler chickens.
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Morales AM, Mukai R, Murota K, Terao J. Inhibitory effect of catecholic colonic metabolites of rutin on fatty acid hydroperoxide and hemoglobin dependent lipid peroxidation in Caco-2 cells. J Clin Biochem Nutr 2018; 63:175-180. [PMID: 30487666 PMCID: PMC6252304 DOI: 10.3164/jcbn.18-38] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 04/23/2018] [Indexed: 02/05/2023] Open
Abstract
To determine the preventive effect of dietary rutin on oxidative damages occurring in the digestive tract, 13-hydroperoxyoctadecadienoic acid and hemoglobin were exposed to Caco-2 intestinal cells after the pretreatment with colonic rutin metabolites. Among four catechol-type metabolites, quercetin and 3,4-dihydroxytoluene exerted significant protection on 13-hydroperoxyoctadecadienoic and hemoglobin-dependent lipid peroxidation of this epithelial cell. Compared with quercetin, a much lower concentration allowed 3,4-dihydroxytoluene to maximize the protective effect, though it needed a longer pre-incubation period. Neither quercetin nor 3,4-dihydroxytoluene affected the expression of peroxiredoxin-6 protein, which comprises the cellular antioxidant defense system. It is concluded that 3,4-dihydroxytoluene is a plausible rutin colonic metabolite that can suppress oxidative damages of intestinal epithelial cells by directly inhibiting lipid peroxidation. This result may illuminate the preventive role of dietary rutin against colorectal cancer incidence in relation to the consumption of red and processed meat.
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Affiliation(s)
- Agustin Martin Morales
- Department of Food Science, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Rie Mukai
- Department of Food Science, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Kaeko Murota
- Department of Life Sciecne, Faculty of Science and Engeering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Junji Terao
- Department of Food Science, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
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Inhibition of advanced glycation end products by isoferulic acid and its free radical scavenging capacity: An in vitro and molecular docking study. Int J Biol Macromol 2018; 118:1479-1487. [PMID: 29969636 DOI: 10.1016/j.ijbiomac.2018.06.182] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 06/20/2018] [Accepted: 06/28/2018] [Indexed: 02/02/2023]
Abstract
Non-enzymatic glycation and Oxidation of some essential biological macromolecules are paramount in the pathogenesis of various diseases including diabetes and atherosclerosis. Hyperglycemia plays a key role in the pathological process of diabetic complications by progressive accumulation of advanced glycation end products (AGEs) in body tissues. Formation of AGEs as a result of protein glycation is followed by an increased free radical activity that additionally contributes towards the bio-macromolecular damage. The present study aimed to evaluate the free radical scavenging and antiglycation capacity of isoferulic acid (IFA). The free radical scavenging activity of IFA was measured using DPPH, FRAP, and metal chelating assays. IFA showed effective reducing power, free radical scavenging activity and metal chelation activity in concentration dependent manner. The antiglycation activity of IFA was studied using various spectroscopic techniques. The obtained results were validated with free amino, sulfhydryl group, carbonyl content and AGEs formation. Secondary structural alterations were monitored using circular dichroism, morphology of aggregates was analyzed using transmission electron microscopy. Molecular docking reveals the possible binding location of IFA with in the sub-domain IIA of human serum albumin (HSA).
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36
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Cui H, Tao F, Hou Y, Lu Y, Zheng T, Sang S, Lv L. Dual effects of propyl gallate and its methylglyoxal adduct on carbonyl stress and oxidative stress. Food Chem 2018; 265:227-232. [PMID: 29884377 DOI: 10.1016/j.foodchem.2018.04.045] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 04/13/2018] [Accepted: 04/13/2018] [Indexed: 11/26/2022]
Abstract
In the present study, we investigated the trapping of methylglyoxal (MGO) by propyl gallate (PG), a known food grade antioxidant, and the anti-carbonyl and anti-oxidative properties of the mono-MGO adduct of PG (MM-PG). Our result indicated that more than 77.5% MGO was suppressed by PG after a 30 min incubation of PG with MGO, which was much more effective than gallic acid (15.2%). For the first time, MM-PG was purified, and its structure was elucidated based on the analysis of its 1H, 13C, and 2D-NMR data. We also demonstrated that MM-PG had strong anti-oxidative and anti-carbonyl activities. Furthermore, PG could trap the MGO generated during the preparation of roasted pork, and both mono- and di- MGO adducts of PG were detected in the roasted pork system using LC/MS technique. Thus, PG could be widely applied in the food system for inhibiting the formation of both carbonyl species and oxidative species.
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Affiliation(s)
- Hengqing Cui
- Department of Food Science and Technology, Nanjing Normal University, 122# Ninghai Road, Nanjing 210097, PR China
| | - Fei Tao
- College of Standardization, China Jiliang University, 258# Xueyuan Street, Hangzhou 310018, PR China
| | - Yu Hou
- Department of Food Science and Technology, Nanjing Normal University, 122# Ninghai Road, Nanjing 210097, PR China
| | - Yongling Lu
- Department of Food Science and Technology, Nanjing Normal University, 122# Ninghai Road, Nanjing 210097, PR China
| | - Tiesong Zheng
- Department of Food Science and Technology, Nanjing Normal University, 122# Ninghai Road, Nanjing 210097, PR China
| | - Shengmin Sang
- Laboratory for Functional Foods and Human Health, Center for Excellence in Post-Harvest Technologies, North Carolina Agricultural and Technical State University, North Carolina Research Campus, 500 Laureate Way, Kannapolis, NC 28081, United States.
| | - Lishuang Lv
- Department of Food Science and Technology, Nanjing Normal University, 122# Ninghai Road, Nanjing 210097, PR China.
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37
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Yap HYY, Tan NH, Ng ST, Tan CS, Fung SY. Inhibition of Protein Glycation by Tiger Milk Mushroom [ Lignosus rhinocerus (Cooke) Ryvarden] and Search for Potential Anti-diabetic Activity-Related Metabolic Pathways by Genomic and Transcriptomic Data Mining. Front Pharmacol 2018; 9:103. [PMID: 29491836 PMCID: PMC5817425 DOI: 10.3389/fphar.2018.00103] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 01/30/2018] [Indexed: 01/08/2023] Open
Abstract
Naturally occurring anti-glycation compounds have drawn much interest in recent years as they show potential in reducing or preventing the risk of chronic complications for diabetic patients. In this study, annotation of the genome–transcriptome data from tiger milk mushroom (Lignosus rhinocerus, syn. Lignosus rhinocerotis) to PlantCyc enzymes database identified transcripts that are related to anti-diabetic properties, and these include genes that are involved in carotenoid and abscisic acid biosynthesis as well as genes that code for glyoxalase I, catalase-peroxidases, and superoxide dismutases. The existence of these genes suggests that L. rhinocerus may contain bioactive compound(s) with anti-glycation properties that can be exploited for management of diabetic complications. A medium-molecular-weight (MMW) fraction which was obtained from a combination of cold water extraction and Sephadex® G-50 (fine) gel filtration chromatography of L. rhinocerus sclerotia powder was demonstrated to exhibit potent anti-glycation activity. The fraction specifically inhibited the formation of N𝜀-(carboxymethyl)lysine, pentosidine, and other advanced glycation end-product (AGE) structures in a human serum albumin-glucose system, with an IC50 value of 0.001 mg/ml, almost 520 times lower than that of the positive control, aminoguanidine hydrochloride (IC50 = 0.52 mg/ml). Its ability to suppress protein glycation may be partly associated with its strong superoxide anion radical scavenging activity (10.16 ± 0.12 mmol TE/g). Our results suggest that the MMW fraction of L. rhinocerus shows potential to be developed into a potent glycation inhibitor for preventing AGE-mediated diabetic complications.
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Affiliation(s)
- Hui-Yeng Y Yap
- Department of Oral Biology, Faculty of Dentistry, Mahsa University, Kuala Lumpur, Malaysia.,Medicinal Mushroom Research Group, Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Nget-Hong Tan
- Medicinal Mushroom Research Group, Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Szu-Ting Ng
- LiGNO Biotech Sdn Bhd, Balakong Jaya, Malaysia
| | | | - Shin-Yee Fung
- Medicinal Mushroom Research Group, Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.,Center for Natural Products Research and Drug Discovery, University of Malaya, Kuala Lumpur, Malaysia
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Abbasi S, Gharaghani S, Benvidi A, Rezaeinasab M. New insights into the efficiency of thymol synergistic effect with p -cymene in inhibiting advanced glycation end products: A multi-way analysis based on spectroscopic and electrochemical methods in combination with molecular docking study. J Pharm Biomed Anal 2018; 150:436-451. [DOI: 10.1016/j.jpba.2017.12.042] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Revised: 12/06/2017] [Accepted: 12/20/2017] [Indexed: 01/13/2023]
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Coelho LM, Silva PM, Martins JT, Pinheiro AC, Vicente AA. Emerging opportunities in exploring the nutritional/functional value of amaranth. Food Funct 2018; 9:5499-5512. [DOI: 10.1039/c8fo01422a] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Amaranthusspp. is a highly nutritive pseudocereal, rich in macronutrients and micronutrients, including vitamins and minerals.
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Affiliation(s)
| | - Pedro Miguel Silva
- CEB – Centre of Biological Engineering
- University of Minho
- 4710-057 Braga
- Portugal
| | - Joana T. Martins
- CEB – Centre of Biological Engineering
- University of Minho
- 4710-057 Braga
- Portugal
| | - Ana C. Pinheiro
- CEB – Centre of Biological Engineering
- University of Minho
- 4710-057 Braga
- Portugal
- Instituto de Biologia Experimental e Tecnológica
| | - António A. Vicente
- CEB – Centre of Biological Engineering
- University of Minho
- 4710-057 Braga
- Portugal
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40
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Currò D. The role of gut microbiota in the modulation of drug action: a focus on some clinically significant issues. Expert Rev Clin Pharmacol 2017; 11:171-183. [PMID: 29210311 DOI: 10.1080/17512433.2018.1414598] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
INTRODUCTION A healthy gut microbiota is necessary for the normal operation of several body functions, including gastrointestinal sensitivity and motility, lipid and glucid metabolism, immune surveillance, and host behavior. In addition, intestinal bacteria contribute to determining the pharmacological properties of several drugs by producing different drug metabolizing enzymes. Areas covered: Four enzymatic processes are discussed: prodrug activation; drug inactivation; drug deconjugation; and hydrolysis of natural glycosides with further metabolism of released aglycones. For each of these processes, a literature search has been undertaken on certain paradigmatic examples that have significant clinical implications: aminosalicylates and anthranoid laxatives; digoxin; irinotecan and non-steroidal anti-inflammatory drugs (NSAIDs); rutin, diosmin, and baicalin. Expert commentary: The modulation of certain reactions catalyzed by gut bacterial enzymes may offer new opportunities to improve the clinical efficacy of drugs such as aminosalicylates, and natural glycosides by increasing their metabolic transformation, and of digoxin by reducing its inactivation, or to decrease the lower intestinal toxicity of irinotecan, and NSAIDs by inhibiting the hydrolytic cleavage of their conjugates. Randomized clinical trials are awaited to clarify whether new intervention strategies may modulate these processes and provide clinical benefits such as improved therapeutic outcomes and drug safety profiles.
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Affiliation(s)
- Diego Currò
- a Istituto di Farmacologia , Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario Agostino Gemelli , Roma , Italia
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41
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Yin MC, Wang ZH, Liu WH, Mong MC. Aqueous Extract of Gynura Bicolor Attenuated Hepatic Steatosis, Glycative, Oxidative, and Inflammatory Injury Induced by Chronic Ethanol Consumption in Mice. J Food Sci 2017; 82:2746-2751. [PMID: 29023845 DOI: 10.1111/1750-3841.13930] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 08/22/2017] [Accepted: 08/30/2017] [Indexed: 12/20/2022]
Abstract
Gynura bicolor leaf aqueous extract (GAE) is rich in phytochemicals including phenolic acids, flavonoids, carotenoids, and anthocyanins. Effects of GAE upon hepatic injury in mice with chronic ethanol intake were examined. Lieber-DeCarli liquid diet with ethanol was used to induce hepatic lipid accumulation, oxidative, glycative, and inflammatory injury. GAE at 0.25% or 0.5% was added in feeds, and supplied to mice consumed Lieber-DeCarli liquid diet with ethanol for 6 wk. Blood and liver were collected for analyses. Results showed that ethanol increased plasma and hepatic triglyceride and cholesterol content, and affected plasma levels of insulin, adiponectin, leptin, and ghrelin. GAE at both doses decreased lipid accumulation, and at high dose improved hormones abnormality. Histological data revealed that GAE supplement mitigated hepatic lipid deposit. Ethanol increased plasma Nε -(carboxyethymethyl)-lysine and pentosidine levels. GAE at high doses lowered those glycative factors. Ethanol depleted glutathione content, increased CYP2E1 activity and reactive oxygen species production, and reduced the activity of glutathione peroxide, glutathione reductase and catalase in liver. GAE supplement at both doses reversed these alterations and attenuated hepatic oxidative stress. GAE supplement also at both doses decreased hepatic inflammatory cytokines release in ethanol treated mice. These findings support that leaves of G. bicolor is a functional food with liver protective activities against ethanol.
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Affiliation(s)
- Mei-Chin Yin
- Dept. of Food Nutrition and Health Biotechnology, Asia Univ., Taichung City, Taiwan.,Dept. of Medical Research, China Medical Univ. Hospital, China Medical Univ., Taichung City, Taiwan
| | - Zhi-Hong Wang
- Dept. of Food Nutrition and Health Biotechnology, Asia Univ., Taichung City, Taiwan
| | - Wen-Hu Liu
- Dept. of Nutrition, Chung Shan Medical Univ., Taichung City, Taiwan
| | - Mei-Chin Mong
- Dept. of Food Nutrition and Health Biotechnology, Asia Univ., Taichung City, Taiwan
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42
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Abdullah K, Qais FA, Ahmad I, Naseem I. Inhibitory effect of vitamin B 3 against glycation and reactive oxygen species production in HSA: An in vitro approach. Arch Biochem Biophys 2017. [DOI: 10.1016/j.abb.2017.06.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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43
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Dludla PV, Joubert E, Muller CJF, Louw J, Johnson R. Hyperglycemia-induced oxidative stress and heart disease-cardioprotective effects of rooibos flavonoids and phenylpyruvic acid-2- O-β-D-glucoside. Nutr Metab (Lond) 2017; 14:45. [PMID: 28702068 PMCID: PMC5504778 DOI: 10.1186/s12986-017-0200-8] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 06/23/2017] [Indexed: 12/15/2022] Open
Abstract
Diabetic patients are at an increased risk of developing heart failure when compared to their non-diabetic counter parts. Accumulative evidence suggests chronic hyperglycemia to be central in the development of myocardial infarction in these patients. At present, there are limited therapies aimed at specifically protecting the diabetic heart at risk from hyperglycemia-induced injury. Oxidative stress, through over production of free radical species, has been hypothesized to alter mitochondrial function and abnormally augment the activity of the NADPH oxidase enzyme system resulting in accelerated myocardial injury within a diabetic state. This has led to a dramatic increase in the exploration of plant-derived materials known to possess antioxidative properties. Several edible plants contain various natural constituents, including polyphenols that may counteract oxidative-induced tissue damage through their modulatory effects of intracellular signaling pathways. Rooibos, an indigenous South African plant, well-known for its use as herbal tea, is increasingly studied for its metabolic benefits. Prospective studies linking diet rich in polyphenols from rooibos to reduced diabetes associated cardiovascular complications have not been extensively assessed. Aspalathin, a flavonoid, and phenylpyruvic acid-2-O-β-D-glucoside, a phenolic precursor, are some of the major compounds found in rooibos that can ameliorate hyperglycemia-induced cardiomyocyte damage in vitro. While the latter has demonstrated potential to protect against cell apoptosis, the proposed mechanism of action of aspalathin is linked to its capacity to enhance the expression of nuclear factor (erythroid-derived 2)-like 2 (Nrf2) expression, an intracellular antioxidant response element. Thus, here we review literature on the potential cardioprotective properties of flavonoids and a phenylpropenoic acid found in rooibos against diabetes-induced oxidative injury.
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Affiliation(s)
- Phiwayinkosi V Dludla
- Biomedical Research and Innovation Platform (BRIP), South African Medical Research Council, P.O. Box 19070, Tygerberg, 7505 South Africa.,Division of Medical Physiology, Faculty of Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - Elizabeth Joubert
- Plant Bioactives Group, Post-Harvest and Wine Technology Division, Agricultural Research Council (ARC) Infruitec- Nietvoorbij, Stellenbosch, South Africa.,Department of Food Science, Stellenbosch University, Stellenbosch, South Africa
| | - Christo J F Muller
- Biomedical Research and Innovation Platform (BRIP), South African Medical Research Council, P.O. Box 19070, Tygerberg, 7505 South Africa.,Division of Medical Physiology, Faculty of Health Sciences, Stellenbosch University, Tygerberg, South Africa.,Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa, South Africa
| | - Johan Louw
- Biomedical Research and Innovation Platform (BRIP), South African Medical Research Council, P.O. Box 19070, Tygerberg, 7505 South Africa.,Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa, South Africa
| | - Rabia Johnson
- Biomedical Research and Innovation Platform (BRIP), South African Medical Research Council, P.O. Box 19070, Tygerberg, 7505 South Africa.,Division of Medical Physiology, Faculty of Health Sciences, Stellenbosch University, Tygerberg, South Africa
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Lund MN, Ray CA. Control of Maillard Reactions in Foods: Strategies and Chemical Mechanisms. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:4537-4552. [PMID: 28535048 DOI: 10.1021/acs.jafc.7b00882] [Citation(s) in RCA: 350] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Maillard reactions lead to changes in food color, organoleptic properties, protein functionality, and protein digestibility. Numerous different strategies for controlling Maillard reactions in foods have been attempted during the past decades. In this paper, recent advances in strategies for controlling the Maillard reaction and subsequent downstream reaction products in food systems are critically reviewed. The underlying mechanisms at play are presented, strengths and weaknesses of each strategy are discussed, and reasonable reaction mechanisms are proposed to reinforce the evaluations. The review includes strategies involving addition of functional ingredients, such as plant polyphenols and vitamins, as well as enzymes. The resulting trapping or modification of Maillard targets, reactive intermediates, and advanced glycation endproducts (AGEs) are presented with their potential unwanted side effects. Finally, recent advances in processing for control of Maillard reactions are discussed.
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Affiliation(s)
- Marianne N Lund
- Department of Food Science, Faculty of Science, University of Copenhagen , Frederiksberg 1958, Denmark
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen , Copenhagen 2200, Denmark
| | - Colin A Ray
- Department of Food Science, Faculty of Science, University of Copenhagen , Frederiksberg 1958, Denmark
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Crascì L, Lauro MR, Puglisi G, Panico A. Natural antioxidant polyphenols on inflammation management: Anti-glycation activity vs metalloproteinases inhibition. Crit Rev Food Sci Nutr 2017; 58:893-904. [PMID: 27646710 DOI: 10.1080/10408398.2016.1229657] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The diet polyphenols are a secondary metabolites of plants able to act on inflammation process. Their anti-inflammatory activity is articulated through several mechanisms that are related to their antioxidative and radical scavengers properties. Our work is focused on a novel approach to inflammatory disease management, based on anti-glycative and matrix metalloproteinases (MMPs) inhibition effects, as a connected phenomena. To better understand these correlation, polyphenols Structure-Activity Relationship (SAR) studies were also reported. The antioxidant polyphenols inhibit the AGEs at different levels of the glycation process in the following ways: (1) prevention of Amadori adduct oxidation; (2) trapping reactive dycarbonyl compounds; (3) attenuation of receptor for AGEs (RAGE) expression. Moreover, several flavonoids with radical scavenging property showed also MMPs inhibition interact directly with MMPs or indirectly via radical scavengers and AGEs reduction. The essential polyphenols features involved in these mechanisms are C2-C3 double bond and number and position of hydroxyl, glycosyl and O-methyl groups. These factors induce a change in molecular planarity interfering with the hydrogen bond formation, electron delocalization and metal ion chelation. In particular, C2-C3 double bond improve the antioxidant and MMPs inhibition, while the hydroxylation, glycosylation and methylation induce a positive and negative correlation, respectively.
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Affiliation(s)
- Lucia Crascì
- a Department of Drug Science , University of Catania , Viale A. Doria , Catania , Italy
| | - Maria Rosaria Lauro
- b Department of Pharmacy , University of Salerno , Via Giovanni Paolo II, Fisciano ( SA ), Italy
| | - Giovanni Puglisi
- a Department of Drug Science , University of Catania , Viale A. Doria , Catania , Italy
| | - Annamaria Panico
- a Department of Drug Science , University of Catania , Viale A. Doria , Catania , Italy
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Prasad C, Davis KE, Imrhan V, Juma S, Vijayagopal P. Advanced Glycation End Products and Risks for Chronic Diseases: Intervening Through Lifestyle Modification. Am J Lifestyle Med 2017; 13:384-404. [PMID: 31285723 DOI: 10.1177/1559827617708991] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 04/18/2017] [Accepted: 04/19/2017] [Indexed: 12/17/2022] Open
Abstract
Advanced glycation end products (AGEs) are a family of compounds of diverse chemical nature that are the products of nonenzymatic reactions between reducing sugars and proteins, lipids, or nucleic acids. AGEs bind to one or more of their multiple receptors (RAGE) found on a variety of cell types and elicit an array of biologic responses. In this review, we have summarized the data on the nature of AGEs and issues associated with their measurements, their receptors, and changes in their expression under different physiologic and disease states. Last, we have used this information to prescribe lifestyle choices to modulate AGE-RAGE cycle for better health.
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Affiliation(s)
- Chandan Prasad
- Department of Nutrition and Food Sciences, Texas Woman's University, Denton, Texas (CP, VI, SJ, PV).,Department of Clinical Nutrition, University of Texas Southwestern Medical Center, Dallas, Texas (KED)
| | - Kathleen E Davis
- Department of Nutrition and Food Sciences, Texas Woman's University, Denton, Texas (CP, VI, SJ, PV).,Department of Clinical Nutrition, University of Texas Southwestern Medical Center, Dallas, Texas (KED)
| | - Victorine Imrhan
- Department of Nutrition and Food Sciences, Texas Woman's University, Denton, Texas (CP, VI, SJ, PV).,Department of Clinical Nutrition, University of Texas Southwestern Medical Center, Dallas, Texas (KED)
| | - Shanil Juma
- Department of Nutrition and Food Sciences, Texas Woman's University, Denton, Texas (CP, VI, SJ, PV).,Department of Clinical Nutrition, University of Texas Southwestern Medical Center, Dallas, Texas (KED)
| | - Parakat Vijayagopal
- Department of Nutrition and Food Sciences, Texas Woman's University, Denton, Texas (CP, VI, SJ, PV).,Department of Clinical Nutrition, University of Texas Southwestern Medical Center, Dallas, Texas (KED)
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Hafizur RM, Momin S, Fatima N. Prevention of advanced glycation end-products formation in diabetic rats through beta-cell modulation by Aegle marmelos. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 17:227. [PMID: 28431540 PMCID: PMC5399853 DOI: 10.1186/s12906-017-1743-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 04/13/2017] [Indexed: 01/09/2023]
Abstract
Background Although the anti-diabetic activity of Aegle marmelos (AM) is known, however, its anti-glycation activity is not reported yet. In this study, we have investigated its anti-glycation activity under in vitro and in vivo conditions and determined possible mechanism(s) in streptozotocin-induced diabetic rats. Methods Effective dose of AM (400 mg/kg) was administrated orally to diabetic rats for 42 days. Thereafter, blood glucose, serum insulin, HbA1c, antioxidant status, and advanced glycation end-products (AGEs) were measured. AGEs and its receptor (RAGE) in kidney were analyzed by immunohistochemistry and immunoblotting. Additionally, pancreatic sections were co-stained for insulin and glucagon and images were acquired using NIKON TE2000E fluorescence microscopy. Results Oral administration of AM extract resulted in a significant increase in serum insulin by better functioning of β-cell and preserving pancreatic β-cell integrity in diabetic rats. Treatment of AM extract significantly (p = 0.000) prevented the formation of HbA1c in the diabetic rats (8.20 ± 0.18% vs. 11.92 ± 0.59%). The circulatory AGEs level found in diabetic rat was significantly (p = 0.002) attenuated by AM treatment (0.66 ± 0.05 mg/ml vs. 1.18 ± 0.19 mg/ml). AM treatment also reduced AGEs accumulation around Bowman’s capsule and in tubular basement membrane around arteries in diabetic rat kidney. The accumulation of RAGE was very similar to that of AGEs in diabetic rats and RAGE accumulation was also prevented by AM treatment. The extract showed potent antioxidant activity both under in vitro and in vivo systems. Eugenol, one of the active constituent of AM fruit extract, showed acute blood glucose-lowering activity in diabetic rats and enhanced glucose-stimulated insulin secretion from mice islets. Conclusion AM extract prevents AGEs formation by modulating β-cell function, and eugenol may play important role in preventing complications of diabetes in this rat model.
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Hormetic efficacy of rutin to promote longevity in Drosophila melanogaster. Biogerontology 2017; 18:397-411. [PMID: 28389882 DOI: 10.1007/s10522-017-9700-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 04/06/2017] [Indexed: 10/19/2022]
Abstract
Hormetins are compounds that mediate hormesis by being beneficial at low doses but detrimental at high doses. Recent studies have highlighted that many compounds that extended lifespan in model organisms did so by mediating hormesis. Rutin is a glycosylate conjugate of quercetin and rutinose and is abundant in citrus fruits and buckwheat seeds. Rutin possess ROS scavenging, anti-cancer, cardio-protective, skin-regenerative and neuro-protective properties. Drosophila melanogaster is an attractive model organism for longevity studies owing to its homology of organ and cellular-pathways with mammals. In this study, we aimed to understand the effect of rutin on extending longevity in Drosophila melanogaster. Male and female flies were administered with a range of rutin doses (100-800 µM) to analyse whether rutin mediated lifespan-extension by hormesis. Effect of rutin on physiological parameters like food intake, fecundity, climbing activity, development and resistance to various stresses was also studied. Lifespan assays showed that rutin at 200 and 400 µM significantly extended median lifespan in both male and female flies beyond which flies exhibited drastically reduced longevity. Increase in survival at 400 µM was associated with reduced food intake and fecundity. Flies exhibited improved climbing capability with both 200 and 400 µM rutin. Flies fed with 100 and 200 µM rutin exhibited enhanced survival upon exposure to oxidative stress with 400 µM rutin exhibiting no improvement in median lifespan following oxidative stress. Analysis of endogenous peroxide upon treatment with rutin (100-400 µM) with or without 5% H2O2 showed elevated levels of endogenous peroxide with 400 µM rutin whereas no increase in hydrogen peroxide level was observed with rutin at 100 and 200 µM. Finally, gene expression studies in male flies revealed that rutin treatment at 200 and/or 400 µM elevated transcript levels of dFoxO, MnSod, Cat, dTsc1, dTsc2, Thor, dAtg1, dAtg5 and dAtg7 and reduced transcript levels of dTor. Collectively, rutin at 200 and 400 µM improved longevity in flies; 200 µM rutin acted as a mild stressor to prolong lifespan in flies by mediating hormesis whereas 400 µM, being a high dose for best positive effects.
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Bhuiyan MNI, Mitsuhashi S, Sigetomi K, Ubukata M. Quercetin inhibits advanced glycation end product formation via chelating metal ions, trapping methylglyoxal, and trapping reactive oxygen species. Biosci Biotechnol Biochem 2017; 81:882-890. [PMID: 28388357 DOI: 10.1080/09168451.2017.1282805] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Physiological concentration of Mg2+, Cu2+, and Zn2+ accelerated AGE formation only in glucose-mediated conditions, which was effectively inhibited by chelating ligands. Only quercetin (10) inhibited MGO-mediated AGE formation as well as glucose- and ribose-mediated AGE formation among 10 polyphenols (1-10) tested. We performed an additional structure-activity relationship (SAR) study on flavanols (10, 11, 12, 13, and 14). Morin (12) and kaempherol (14) showed inhibitory activity against MGO-mediated AGE formation, whereas rutin (11) and fisetin (13) did not. These observations indicate that 3,5,7,4'-tetrahydroxy and 4-keto groups of 10 are important to yield newly revised mono-MGO adducts (16 and 17) and di-MGO adduct (18) having cyclic hemiacetals, while 3'-hydroxy group is not essential. We propose here a comprehensive inhibitory mechanism of 10 against AGE formation including chelation effect, trapping of MGO, and trapping of reactive oxygen species (ROS), which leads to oxidative degradation of 18 to 3,4-dihydroxybenzoic acid (15) and other fragments.
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Affiliation(s)
| | - Shinya Mitsuhashi
- a Division of Applied Bioscience, Graduate School of Agriculture , Hokkaido University , Sapporo , Japan
| | - Kengo Sigetomi
- a Division of Applied Bioscience, Graduate School of Agriculture , Hokkaido University , Sapporo , Japan
| | - Makoto Ubukata
- a Division of Applied Bioscience, Graduate School of Agriculture , Hokkaido University , Sapporo , Japan
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Kaur A, Gupta V, Christopher AF, Malik MA, Bansal P. Nutraceuticals in prevention of cataract - An evidence based approach. Saudi J Ophthalmol 2016; 31:30-37. [PMID: 28337060 PMCID: PMC5352946 DOI: 10.1016/j.sjopt.2016.12.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 11/02/2016] [Accepted: 12/06/2016] [Indexed: 11/01/2022] Open
Abstract
Cataract is a principal cause of blindness in the world and is characterized by clouding of eye's natural lens. Surgery is the major therapeutic step taken to cure cataract; however, it is having its own limitations and complications such as iris prolapse, raised IOP, infection, cystoid macular edema and posterior capsular opacification (PCO). So world is looking toward more robust and natural ways to prevent cataract. One of the important factors that can play a role in prevention of any and many diseases is diet of the people. The inclusion of certain naturally occurring food and nutraceuticals is coming up as a best alternative for curing cataract because of their presumed safety, potential nutritional and therapeutic effects. Some nutraceuticals can act as an anticataract agent through some or the other molecular mechanism if consumed by normal population deliberately or inadvertently.
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Affiliation(s)
- Amandeep Kaur
- University Centre of Excellence in Research, Baba Farid University of Health Sciences, Faridkot, Punjab, India
| | - Vikas Gupta
- University Centre of Excellence in Research, Baba Farid University of Health Sciences, Faridkot, Punjab, India
| | - Ajay Francis Christopher
- University Centre of Excellence in Research, Baba Farid University of Health Sciences, Faridkot, Punjab, India
| | - Manzoor Ahmad Malik
- Cancer Diagnostic and Research Centre, Department of Immunology and Molecular Medicine, Sher-I-Kashmir Institute of Medical Sciences, Soura, Srinagar, Jammu and Kashmir 190011, India
| | - Parveen Bansal
- University Centre of Excellence in Research, Baba Farid University of Health Sciences, Faridkot, Punjab, India
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