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Nicosia N, Kwiecień I, Bednarski M, Głuch-Lutwin M, Mordyl B, Mika K, Hambaryan R, Miller A, Alesci A, Lauriano ER, Zammit P, Ragusa S, Trojan E, Fumia A, Sapa J, Miceli N, Kotańska M. Anti-diabetes and neuroprotection potential and primary safety studies of Isatis tinctoria L. hydroalcoholic leaf extract. Fitoterapia 2024; 177:106138. [PMID: 39053741 DOI: 10.1016/j.fitote.2024.106138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 07/21/2024] [Accepted: 07/21/2024] [Indexed: 07/27/2024]
Abstract
PURPOSE Natural plant raw materials, previously underestimated in therapeutics, are becoming the subject of research for new applications in medicine. In our research, the hydroalcoholic extract of Isatis tinctoria leaf, rich in flavonoid compounds such as vicenin-2 and quercetin, was examined as a potential antidiabetic and neuroprotective agent. METHODS The effect of the extract and its main flavonoid compounds on protein glycation, alpha-glucosidase activity, and acetylcholinesterase activity was tested. In vitro, in the mouse hippocampal neuronal cell line and in vivo, using a mouse model, the safety of the extract was screened for. RESULTS Our experiments demonstrated significant inhibition of protein glycation, alpha-glucosidase activity, acetylcholinesterase activity, and β-amyloid aggregation by the extract, in a concentration-dependent manner. The extract had a strong reducing effect and did not exhibit cytotoxicity up to a concentration of 25 mg/mL. Intraperitoneal administration of the extract to mice did not have negative effects on body mass, locomotor activity, coordination, and liver cell integrity. CONCLUSIONS Our research sheds new light on this raw material and deepens knowledge of its activity. This may result in the recognition of its therapeutic effects and even in its introduction in the modern treatment of diseases characterized by pathological changes associated with hyperglycemia, oxidation, and inflammation.
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Affiliation(s)
- Noemi Nicosia
- Department of Pharmacological Screening, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Cracow, Poland; PhD Program in Neuroscience, Department of Medicine and Surgery, University of Milano-Bicocca, Milan, Italy; Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy; Foundation "Prof. Antonio Imbesi", University of Messina, Piazza Pugliatti 1, 98122 Messina, Italy
| | - Inga Kwiecień
- Department of Medicinal Plant and Mushroom Biotechnology, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Cracow, Poland
| | - Marek Bednarski
- Department of Pharmacological Screening, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Cracow, Poland
| | - Monika Głuch-Lutwin
- Department of Pharmacobiology, Faculty of Pharmacy, Jagiellonian University Medical College, 30-688 Kraków, Poland
| | - Barbara Mordyl
- Department of Pharmacobiology, Faculty of Pharmacy, Jagiellonian University Medical College, 30-688 Kraków, Poland
| | - Kamil Mika
- Department of Pharmacological Screening, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Cracow, Poland
| | - Rimma Hambaryan
- Department of Pharmacological Screening, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Cracow, Poland
| | - Anthea Miller
- Department of Pharmacological Screening, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Cracow, Poland; Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy
| | - Alessio Alesci
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Eugenia R Lauriano
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Paula Zammit
- Department of Pharmacological Screening, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Cracow, Poland; University of Malta, Msida MSD 2080, Malta
| | - Salvatore Ragusa
- PLANTA/Autonomous Center for Research, Documentation and Training, Via Serraglio Vecchio 28, 90123 Palermo, Italy
| | - Ewa Trojan
- Department of Pharmacological Screening, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Cracow, Poland; Department of Experimental Neuroendocrinology, Maj Institute of Pharmacology Polish Academy of Sciences, 12 Smętna Str., 31-343 Kraków, Poland
| | - Angelo Fumia
- Department of Clinical and Experimental Medicine, University of Messina, 98124 Messina, Italy
| | - Jacek Sapa
- Department of Pharmacological Screening, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Cracow, Poland
| | - Natalizia Miceli
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Magdalena Kotańska
- Department of Pharmacological Screening, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Cracow, Poland.
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Yadav N, Palkhede JD, Kim SY. Anti-Glucotoxicity Effect of Phytoconstituents via Inhibiting MGO-AGEs Formation and Breaking MGO-AGEs. Int J Mol Sci 2023; 24:ijms24087672. [PMID: 37108833 PMCID: PMC10141761 DOI: 10.3390/ijms24087672] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/16/2023] [Accepted: 04/18/2023] [Indexed: 04/29/2023] Open
Abstract
The therapeutic benefits of phytochemicals in the treatment of various illnesses and disorders are well documented. They show significant promise for the discovery and creation of novel medications for treating a variety of human diseases. Numerous phytoconstituents have shown antibiotic, antioxidant, and wound-healing effects in the conventional system. Traditional medicines based on alkaloids, phenolics, tannins, saponins, terpenes, steroids, flavonoids, glycosides, and phytosterols have been in use for a long time and are crucial as alternative treatments. These phytochemical elements are crucial for scavenging free radicals, capturing reactive carbonyl species, changing protein glycation sites, inactivating carbohydrate hydrolases, fighting pathological conditions, and accelerating the healing of wounds. In this review, 221 research papers have been reviewed. This research sought to provide an update on the types and methods of formation of methylglyoxal-advanced glycation end products (MGO-AGEs) and molecular pathways induced by AGEs during the progression of the chronic complications of diabetes and associated diseases as well as to discuss the role of phytoconstituents in MGO scavenging and AGEs breaking. The development and commercialization of functional foods using these natural compounds can provide potential health benefits.
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Affiliation(s)
- Neera Yadav
- College of Pharmacy, Gachon University, #191, Hambakmoero, Yeonsu-gu, Incheon 21936, Republic of Korea
- School of Medicine, Kyung Hee University, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Jyoti Dnyaneshwar Palkhede
- Department of Chemistry, College of Pharmacy, Gachon University, #191, Hambakmoero, Yeonsu-gu, Incheon 21936, Republic of Korea
| | - Sun-Yeou Kim
- College of Pharmacy, Gachon University, #191, Hambakmoero, Yeonsu-gu, Incheon 21936, Republic of Korea
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GC-MS and LC-DAD-MS Phytochemical Profiling for Characterization of Three Native Salvia Taxa from Eastern Mediterranean with Antiglycation Properties. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010093. [PMID: 36615289 PMCID: PMC9821822 DOI: 10.3390/molecules28010093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/13/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022]
Abstract
Salvia fruticosa and S. pomifera subsp. calycina are native to Eastern Mediterranean and S. pomifera subsp. pomifera is endemic to Greece. The primary aim of this study was to develop an analytical methodology for metabolomic profiling and to study their efficacy in combating glycation, the major biochemical complication of diabetes. After sequential ultrasound-assisted extraction of 2 g of leaves with petroleum ether and 70% methanol, the volatile metabolites in the petroleum ether extracts were studied with GC-MS (Gas Chromatography-Mass Spectrometry), whereas the polar metabolites in the hydroalcoholic extracts were determined and quantified by UHPLC-DAD-ESI-MS (Ultra-High Performance Liquid Chromatography-Diode Array Detector-Mass Spectrometry). This methodology was applied to five populations belonging to the three native taxa. 1,8-Cineole was the predominant volatile (34.8-39.0%) in S. fruticosa, while S. pomifera had a greater content of α-thujone (19.7-41.0%) and β-thujone (6.0-39.1%). Principal Component Analysis (PCA) analysis of the volatiles could discriminate the different taxa. UHPLC-DAD-ESI-MS demonstrated the presence of 50 compounds, twenty of which were quantified. PCA revealed that not only the taxa but also the populations of S. pomifera subsp. pomifera could be differentiated. All Salvia samples inhibited advanced glycation end-product formation in a bovine serum albumin/2-deoxyribose assay; rosmarinic and carnosic acid shared this activity. This study demonstrates the antiglycation activity of S. fruticosa and S. pomifera extracts for the first time and presents a miniaturized methodology for their metabolomic profiling, which could aid chemotaxonomic studies and serve as a tool for their authentication and quality control.
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Han Z, Zhu M, Wan X, Zhai X, Ho CT, Zhang L. Food polyphenols and Maillard reaction: regulation effect and chemical mechanism. Crit Rev Food Sci Nutr 2022; 64:4904-4920. [PMID: 36382683 DOI: 10.1080/10408398.2022.2146653] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Maillard reaction is a non-enzymatic thermal reaction during food processing and storage. It massively contributes to the flavor, color, health benefits and safety of foods and could be briefly segmented into initial, intermediate and final stages with the development of a cascade of chemical reactions. During thermal reaction of food ingredients, sugar, protein and amino acids are usually the main substrates, and polyphenols co-existed in food could also participate in the Maillard reaction as a modulator. Polyphenols including flavan-3-ols, hydroxycinnamic acids, flavonoids, and tannins have shown various effects throughout the process of Maillard reaction, including conjugating amino acids/sugars, trapping α-dicarbonyls, capturing Amadori rearrangement products (ARPs), as well as decreasing acrylamide and 5-hydroxymethylfurfural (5-HMF) levels. These effects significantly influenced the flavor, taste and color of processed foods, and also decreased the hazard products' level. The chemical mechanism of polyphenols-Maillard products involved the scavenging of radicals, as well as nucleophilic addition and substitution reactions. In the present review, we concluded and discussed the interaction of polyphenols and Maillard reaction, and proposed some perspectives for future studies.
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Affiliation(s)
- Zisheng Han
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, China
- Department of Food Science, Rutgers University, New Brunswick, New Jersey, USA
| | - Mengting Zhu
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, China
| | - Xiaochun Wan
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, China
| | - Xiaoting Zhai
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, China
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, New Brunswick, New Jersey, USA
| | - Liang Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, China
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Zhang J, Zhang L, Lai C, Liang Y, Gao L, Kaliaperumal K, Jiang Y. Nutraceutical potential of navel orange peel in diabetes management: The chemical profile, antioxidant, α-glucosidase inhibitory and antiglycation effects of its flavonoids. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Inhibitory effect of sea buckthorn extracts on advanced glycation endproduct formation. Food Chem 2021; 373:131364. [PMID: 34731796 DOI: 10.1016/j.foodchem.2021.131364] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 10/05/2021] [Accepted: 10/05/2021] [Indexed: 01/08/2023]
Abstract
This study shows the inhibitory effect of sea buckthorn (Hippophae rhamnoides L.) extracts, sea buckthorn leaf (HRL) and berry (HRB), on the formation of advanced glycation endproducts (AGEs), closely linked to diverse disease. In vitro assay revealed the superior inhibitory effect of HRL on the AGEs formation and AGEs-induced collagen crosslinking compared with that of HRB. Ultra-performance liquid chromatography-mass spectrometry results revealed that HRL displays a higher inhibition efficiency on the AGEs formation at 30 AGEs binding sites in bovine serum albumin than HRB. The high concentration of 3-sophoroside-7-rhamnoside in HRL compared with that in HRB may result in the strong inhibitory effect of HRL compared with that of HRB. HRL also exhibited significantly higher ABTS and DPPH radical scavenging activities than HRB. Overall, this study demonstrated that HRL has excellent potential as a dietary agent for controlling various diseases mediated by AGEs and oxidative stress.
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Suttisansanee U, Thiyajai P, Chalermchaiwat P, Wongwathanarat K, Pruesapan K, Charoenkiatkul S, Temviriyanukul P. Phytochemicals and In Vitro Bioactivities of Aqueous Ethanolic Extracts from Common Vegetables in Thai Food. PLANTS 2021; 10:plants10081563. [PMID: 34451608 PMCID: PMC8400534 DOI: 10.3390/plants10081563] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 01/16/2023]
Abstract
Non-communicable diseases (NCDs) are the leading global cause of death. The World Health Organization (WHO) has endorsed the consumption of fruits and vegetables because they are rich in phytochemicals that sustainably ameliorate the occurrence of NCDs. Thai food contains many spices and vegetables with recognized health benefits. Quality control of plant samples encountered a bottleneck in the field and comparative studies of plant control origins including species or cultivar identification, growing area and appropriate harvesting time are limited. To address this issue, all plant samples used in this study were cultivated and controlled by the Department of Agriculture, Ministry of Agriculture and Cooperatives, Thailand. The samples were phytochemically screened and determined their health-promoting bioactivities via antioxidant activities and inhibition of NCD-related enzymes including lipase (obesity), α-amylase and α-glucosidase (diabetes), angiotensin-converting enzyme (hypertension), as well as acetylcholinesterase, butyrylcholinesterase and β-secretase (Alzheimer’s disease). The non-enzymatic reaction toward glycation was also evaluated. The results showed that Senegalia pennata subsp. insuavis (Lace) Maslin, Seigler & Ebinger, Citrus hystrix DC. and Solanum melongena ‘Kermit’ extracts exhibited high antioxidant activities. Moreover, Citrus hystrix DC. extract was a potent inhibitor against lipase, angiotensin-converting enzyme and butyrylcholinesterase, while Coriandrum sativum L. and Psophocarpus tetragonolobus (L.) DC. were potent anti-diabetic agents and Senegalia pennata subsp. insuavis (Lace) Maslin, and Seigler & Ebinger was a potent anti-glycation agent. Our data provide a comparative analysis of ten vegetables to encourage healthy food consumption and development to control NCDs in Thailand in the future.
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Affiliation(s)
- Uthaiwan Suttisansanee
- Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand; (U.S.); (P.T.); (S.C.)
- Food and Nutrition Academic and Research Cluster, Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand
| | - Parunya Thiyajai
- Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand; (U.S.); (P.T.); (S.C.)
- Food and Nutrition Academic and Research Cluster, Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand
| | - Parisut Chalermchaiwat
- Food and Nutrition Program, Department of Home Economics, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand;
| | - Khanitha Wongwathanarat
- Biotechnology Research and Development Office, Department of Agriculture, Ministry of Agriculture and Cooperatives, Bangkok 10900, Thailand;
| | - Kanchana Pruesapan
- Plant Varieties Protection Division, Department of Agriculture, Ministry of Agriculture and Cooperatives, Bangkok 10900, Thailand;
| | - Somsri Charoenkiatkul
- Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand; (U.S.); (P.T.); (S.C.)
| | - Piya Temviriyanukul
- Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand; (U.S.); (P.T.); (S.C.)
- Food and Nutrition Academic and Research Cluster, Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand
- Correspondence: ; Tel.: +66-(0)-2800-2380 (ext. 326)
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Ramlagan P, Rondeau P, Neergheen VS, Bourdon E, Bahorun T. The Prophylactic Activity of Punica granatum L. mesocarp Protects Preadipocytes against Ribosylated BSA-Induced Toxicity. J Am Coll Nutr 2021; 40:502-516. [PMID: 33606612 DOI: 10.1080/07315724.2020.1793701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE It was aimed at comparing the glycating capacities of glucose and ribose in bovine serum albumin (BSA) and anti-glycation activity of pomegranate mesocarp extract (PME). The protective mechanism of PME against ribosylated BSA (BSARIB)-induced toxicity was also investigated. METHODS BSA was incubated with glucose or ribose in the presence or absence of PME for 15 days. In preadipocytes pretreated with PME, cell viability, ROS production, lipid peroxidation and mitochondrial membrane potential were investigated following 1, 6, 12, 18 and 24 h exposure to BSARIB. Nuclear translocation of NFκB was assessed at 1 h and 24 h of BSARIB insult. Accumulation of oxidized proteins, activities of intrinsic antioxidant enzymes and IL-6 secretion were also determined after 24 h exposure to BSARIB. RESULTS Ribose was a harsher glycating agent as compared to glucose and PME showed strong anti-glycation activity by suppressing (P < 0.05) the increase in levels of fluorescent AGEs, Amadori products, protein carbonyl and advanced oxidation protein products (AOPP). In preadipocytes, BSARIB potentiated pro-apoptotic activity by inhibiting the nuclear translocation of NFκB. BSARIB induced a time dependent decrease in cell viability, which was significantly suppressed (P < 0.05) by PME. The extract also significantly reduced (P < 0.05) the time dependent increase in ROS level and associated lipid peroxidation as well as loss in mitochondrial membrane potential caused by BSARIB. PME also counteracted the BSARIB-induced accumulation of oxidized proteins, decrease in intrinsic antioxidant activity and IL-6 over-secretion. CONCLUSIONS PME showed anti-glycation activity and afforded protection against BSARIB-induced toxicity, oxidative stress and inflammation in preadipocytes.
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Affiliation(s)
- P Ramlagan
- Faculty of Science, Department of Health Sciences, University of Mauritius, Réduit, Mauritius.,Biopharmaceutical Unit, Centre for Biomedical and Biomaterials Research, University of Mauritius, Réduit, Mauritius
| | - P Rondeau
- UMR DÉTROIT-INSERM U1188, Diabète Athérothrombose Thérapies Réunion Océan Indien, Université de La Réunion, Saint-Denis de La Réunion, France
| | - V S Neergheen
- Faculty of Science, Department of Health Sciences, University of Mauritius, Réduit, Mauritius.,Biopharmaceutical Unit, Centre for Biomedical and Biomaterials Research, University of Mauritius, Réduit, Mauritius
| | - E Bourdon
- UMR DÉTROIT-INSERM U1188, Diabète Athérothrombose Thérapies Réunion Océan Indien, Université de La Réunion, Saint-Denis de La Réunion, France
| | - T Bahorun
- Biopharmaceutical Unit, Centre for Biomedical and Biomaterials Research, University of Mauritius, Réduit, Mauritius.,Faculty of Science, Department of Biosciences and Ocean Studies, University of Mauritius, Réduit, Mauritius
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Anwar S, Khan S, Almatroudi A, Khan AA, Alsahli MA, Almatroodi SA, Rahmani AH. A review on mechanism of inhibition of advanced glycation end products formation by plant derived polyphenolic compounds. Mol Biol Rep 2021; 48:787-805. [PMID: 33389535 DOI: 10.1007/s11033-020-06084-0] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 12/11/2020] [Indexed: 12/15/2022]
Abstract
Advanced glycation end products (AGEs) are naturally occurring biomolecules formed by interaction of reducing sugars with biomolecules such as protein and lipids etc., Long term high blood sugar level and glycation accelerate the formation of AGEs. Unchecked continuous formation and accumulation of AGEs are potential risks for pathogenesis of various chronic diseases. Current mode of antidiabetic therapy is based on synthetic drugs that are often linked with severe adverse effects. Polyphenolic compounds derived from plants are supposed to inhibit glycation and formation of AGEs at multiple levels. Some polyphenolic compounds regulate the blood glucose metabolism by amplification of cell insulin resistance and activation of insulin like growth factor binding protein signaling pathway. Their antioxidant nature and metal chelating activity, ability to trap intermediate dicarbonyl compounds could be possible mechanisms against glycation and AGEs formation and hence, against AGEs induced health complications. Although, few species of polyphenolic compounds are being used in in vitro trials and their in vivo study is still in progress, increasing the area of research in this field may produce a fruitful approach in management of overall diabetic complications.
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Affiliation(s)
- Shehwaz Anwar
- Department of Medical Laboratories, College of Applied Medical Science, Qassim University, Buraydah, 52571, Saudi Arabia
| | - Shifa Khan
- Department of Biochemistry, Faculty of Medicine, JNMC, Aligarh Muslim University, Aligarh, Uttar Pradesh, 202002, India
| | - Ahmad Almatroudi
- Department of Medical Laboratories, College of Applied Medical Science, Qassim University, Buraydah, 52571, Saudi Arabia
| | - Amjad Ali Khan
- Department of Basic Health Sciences, College of Applied Medical Sciences, Qassim University, P.O. Box 6699, Buraydah, 51452, Saudi Arabia
| | - Mohammed A Alsahli
- Department of Medical Laboratories, College of Applied Medical Science, Qassim University, Buraydah, 52571, Saudi Arabia
| | - Saleh A Almatroodi
- Department of Medical Laboratories, College of Applied Medical Science, Qassim University, Buraydah, 52571, Saudi Arabia
| | - Arshad Husain Rahmani
- Department of Medical Laboratories, College of Applied Medical Science, Qassim University, Buraydah, 52571, Saudi Arabia.
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Zhou Q, Cheng KW, Xiao J, Wang M. The multifunctional roles of flavonoids against the formation of advanced glycation end products (AGEs) and AGEs-induced harmful effects. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.06.002] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Dariya B, Nagaraju GP. Advanced glycation end products in diabetes, cancer and phytochemical therapy. Drug Discov Today 2020; 25:1614-1623. [PMID: 32652310 DOI: 10.1016/j.drudis.2020.07.003] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 06/04/2020] [Accepted: 07/03/2020] [Indexed: 02/08/2023]
Abstract
The irreversible glycation and oxidation of proteins and lipids produces advanced glycation end products (AGEs). These modified AGEs are triggered to bind the receptor for AGE (RAGE), thereby activating its downstream signaling pathways, such as nuclear factor (NF)-κB and phosphoinositide 3-kinase (PI3K)/Akt, ultimately leading to diabetes and cancers. In this review, we focus on the interaction of AGE-RAGE and their associated pathways. We also consider the activity of phytochemicals, such as genistein and curcumin, that trap dicarbonyl compounds including methylglyoxal (MG) and glyoxalase that arise from multiple pathways to block AGE formation and prevent its interaction with RAGE.
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Affiliation(s)
- Begum Dariya
- Department of Biosciences and Biotechnology, Banasthali University, Banasthali, Rajasthan 304022, India
| | - Ganji Purnachandra Nagaraju
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA 30322, USA.
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12
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Egawa T, Ohno Y, Yokoyama S, Yokokawa T, Tsuda S, Goto K, Hayashi T. The Protective Effect of Brazilian Propolis against Glycation Stress in Mouse Skeletal Muscle. Foods 2019; 8:E439. [PMID: 31557885 PMCID: PMC6836237 DOI: 10.3390/foods8100439] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 09/23/2019] [Accepted: 09/24/2019] [Indexed: 01/06/2023] Open
Abstract
We investigated the protective effect of Brazilian propolis, a natural resinous substance produced by honeybees, against glycation stress in mouse skeletal muscles. Mice were divided into four groups: (1) Normal diet + drinking water, (2) Brazilian propolis (0.1%)-containing diet + drinking water, (3) normal diet + methylglyoxal (MGO) (0.1%)-containing drinking water, and (4) Brazilian propolis (0.1%)-containing diet + MGO (0.1%)-containing drinking water. MGO treatment for 20 weeks reduced the weight of the extensor digitorum longus (EDL) muscle and tended to be in the soleus muscle. Ingestion of Brazilian propolis showed no effect on this change in EDL muscles but tended to increase the weight of the soleus muscles regardless of MGO treatment. In EDL muscles, Brazilian propolis ingestion suppressed the accumulation of MGO-derived advanced glycation end products (AGEs) in MGO-treated mice. The activity of glyoxalase 1 was not affected by MGO, but was enhanced by Brazilian propolis in EDL muscles. MGO treatment increased mRNA expression of inflammation-related molecules, interleukin (IL)-1β, IL-6, and toll-like receptor 4 (TLR4). Brazilian propolis ingestion suppressed these increases. MGO and/or propolis exerted no effect on the accumulation of AGEs, glyoxalase 1 activity, and inflammatory responses in soleus muscles. These results suggest that Brazilian propolis exerts a protective effect against glycation stress by inhibiting the accumulation of AGEs, promoting MGO detoxification, and reducing proinflammatory responses in the skeletal muscle. However, these anti-glycation effects does not lead to prevent glycation-induced muscle mass reduction.
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Affiliation(s)
- Tatsuro Egawa
- Laboratory of Sports and Exercise Medicine, Graduate School of Human and Environmental Studies, Kyoto University, Kyoto 606-8501, Japan.
- Laboratory of Health and Exercise Sciences, Graduate School of Human and Environmental Studies, Kyoto University, Kyoto 606-8501, Japan.
| | - Yoshitaka Ohno
- Laboratory of Physiology, School of Health Sciences, Toyohashi SOZO University, Toyohashi 440-8511, Japan.
| | - Shingo Yokoyama
- Laboratory of Physiology, School of Health Sciences, Toyohashi SOZO University, Toyohashi 440-8511, Japan.
| | - Takumi Yokokawa
- Laboratory of Sports and Exercise Medicine, Graduate School of Human and Environmental Studies, Kyoto University, Kyoto 606-8501, Japan.
| | - Satoshi Tsuda
- Laboratory of Sports and Exercise Medicine, Graduate School of Human and Environmental Studies, Kyoto University, Kyoto 606-8501, Japan.
| | - Katsumasa Goto
- Laboratory of Physiology, School of Health Sciences, Toyohashi SOZO University, Toyohashi 440-8511, Japan.
- Department of Physiology, Graduate School of Health Sciences, Toyohashi SOZO University, Toyohashi 440-8511, Japan.
| | - Tatsuya Hayashi
- Laboratory of Sports and Exercise Medicine, Graduate School of Human and Environmental Studies, Kyoto University, Kyoto 606-8501, Japan.
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Cao X, Xia Y, Zeng M, Wang W, He Y, Liu J. Caffeic Acid Inhibits the Formation of Advanced Glycation End Products (AGEs) and Mitigates the AGEs-Induced Oxidative Stress and Inflammation Reaction in Human Umbilical Vein Endothelial Cells (HUVECs). Chem Biodivers 2019; 16:e1900174. [PMID: 31419039 DOI: 10.1002/cbdv.201900174] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 08/15/2019] [Indexed: 12/29/2022]
Abstract
The advanced glycation end products (AGEs) are the compounds produced by non-enzymatic glycation reaction of proteins and sugars, which can induce the generation of free radicals and the expression of inflammatory factors, thereby playing an important role in vascular dysfunction in diabetes. To investigate the effects of caffeic acid (CA) on glycation formed by glucose and protein, various spectroscopic techniques and molecular docking methods were carried out. Furthermore, the protective effects of CA on human umbilical vein endothelial cells (HUVECs) damaged by AGEs were detected. The results indicated that CA inhibited AGEs formation in vitro, decreased the expression of IL-1β, IL-18, ICAM-1, VCAM-1, NLRP3, Caspase-1 and CRP (C-reactive protein) and reduced the ROS in HUVECs exposed to AGEs. Our findings suggested that the supplementation with dietary CA could prevent and delay the AGEs-induced vascular dysfunction in diabetes.
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Affiliation(s)
- Xiangyu Cao
- School of Life Sciences, Liaoning University, 66 Chongshan Middle Road, Shenyang, 110036, P. R. China
| | - Ying Xia
- School of Life Sciences, Liaoning University, 66 Chongshan Middle Road, Shenyang, 110036, P. R. China
| | - Meng Zeng
- Tianjin Academy of Environmental Sciences, 17 Fukang Road Nankai District, Tianjin, 300191, P. R. China
| | - Weiyu Wang
- School of Life Sciences, Liaoning University, 66 Chongshan Middle Road, Shenyang, 110036, P. R. China
| | - Yin He
- School of Life Sciences, Liaoning University, 66 Chongshan Middle Road, Shenyang, 110036, P. R. China
| | - Jianli Liu
- School of Life Sciences, Liaoning University, 66 Chongshan Middle Road, Shenyang, 110036, P. R. China
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14
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Teng J, Li Y, Yu W, Zhao Y, Hu X, Tao NP, Wang M. Naringenin, a common flavanone, inhibits the formation of AGEs in bread and attenuates AGEs-induced oxidative stress and inflammation in RAW264.7 cells. Food Chem 2018; 269:35-42. [DOI: 10.1016/j.foodchem.2018.06.126] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Revised: 06/24/2018] [Accepted: 06/25/2018] [Indexed: 12/13/2022]
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15
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Justino AB, Miranda NC, Franco RR, Martins MM, Silva NMD, Espindola FS. Annona muricata Linn. leaf as a source of antioxidant compounds with in vitro antidiabetic and inhibitory potential against α-amylase, α-glucosidase, lipase, non-enzymatic glycation and lipid peroxidation. Biomed Pharmacother 2018; 100:83-92. [PMID: 29425747 DOI: 10.1016/j.biopha.2018.01.172] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Revised: 01/25/2018] [Accepted: 01/28/2018] [Indexed: 12/21/2022] Open
Abstract
Annona muricata leaves are used in traditional medicine to manage diabetes mellitus and its complications. The aim of this study was to evaluate the potential in vitro antidiabetic properties of Annona muricata leaf by identifying its main phytochemical constituents and characterizing the phenolic-enriched fractions for their in vitro antioxidant capacity and inhibitory activities against glycoside and lipid hydrolases, advanced glycation end-product formation and lipid peroxidation. Ethanol extract of A. muricata leaf was subjected to a liquid-liquid partitioning and its fractions were used in enzymatic assays to evaluate their inhibitory potential against α-amylase, α-glucosidase and lipase, as well as their antioxidant (DPPH, ORAC, FRAP and Fe2+-ascorbate-induced lipid peroxidation assays) and anti-glycation (BSA-fructose, BSA-methylglyoxal and arginine-methylglyoxal models) capacities. In addition, identification of the main bioactive compounds of A. muricata leaf by HPLC-ESI-MS/MS analysis was carried out. Ethyl acetate (EtOAc) and n-butanol (BuOH) fractions showed, respectively, antioxidant properties (ORAC 3964 ± 53 and 2707 ± 519 μmol trolox eq g-1, FRAP 705 ± 35 and 289 ± 18 μmol trolox eq g-1, and DPPH IC50 4.3 ± 0.7 and 9.3 ± 0.8 μg mL-1) and capacity to reduce liver lipid peroxidation (p < .01). Also, EtOAc and BuOH, respectively, inhibited glycation in BSA-fructose (IC50 45.7 ± 13.5 and 61.9 ± 18.2 μg mL-1), BSA-methylglyoxal (IC50 166.1 ± 21.6 and 413.2 ± 49.5 μg mL-1) and arginine-methylglyoxal (IC50 437.9 ± 89.0 and 1191.0 ± 199.0 μg mL-1) assays, α-amylase (IC50 9.2 ± 2.3 and 6.1 ± 1.6 μg mL-1), α-glucosidase (IC50 413.1 ± 121.1 and 817.4 ± 87.9 μg mL-1) and lipase (IC50 74.2 ± 30.1 and 120.3 ± 50.5 μg.mL-1), and presented lower cytotoxicity, when compared to the other fractions and crude extract. Various biomolecules known as potent antioxidants were identified in these fractions, such as chlorogenic and caffeic acids, procyanidins B2 and C1, (epi)catechin, quercetin, quercetin-hexosides and kaempferol. This study presents new biological activities not yet described for A. muricata, which contributes to the understanding of the potential effectiveness in the use of the A. muricata leaf, especially its polyphenols-enriched fractions, for the management of diabetes mellitus and its complications.
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Affiliation(s)
- Allisson Benatti Justino
- Institute of Biotechnology - Federal University of Uberlândia, Av. Pará, 1720, 38400-902, Uberlândia, MG Brazil
| | - Natália Carnevalli Miranda
- Institute of Biomedical Sciences - Federal University of Uberlândia, Av. Pará, 1720, 38400-902, Uberlândia, MG Brazil
| | - Rodrigo Rodrigues Franco
- Institute of Biotechnology - Federal University of Uberlândia, Av. Pará, 1720, 38400-902, Uberlândia, MG Brazil
| | - Mário Machado Martins
- Institute of Chemistry - Federal University of Uberlândia, Av. João Naves de Ávila, 2121, 38408-100, Uberlândia, MG Brazil
| | - Neide Maria da Silva
- Institute of Biomedical Sciences - Federal University of Uberlândia, Av. Pará, 1720, 38400-902, Uberlândia, MG Brazil
| | - Foued Salmen Espindola
- Institute of Biotechnology - Federal University of Uberlândia, Av. Pará, 1720, 38400-902, Uberlândia, MG Brazil.
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16
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Ko C, Lai Y, Zeng Y, Lin R, Deng J, Chiou RY, Wu S. Stilbenes: A potential preservative for sausage products. J FOOD PROCESS PRES 2018. [DOI: 10.1111/jfpp.13456] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Chih‐Yuan Ko
- Department of Pulmonary MedicineSecond Affiliated Hospital of Fujian Medical UniversityQuanzhou China
- Fujian Province Center for Respiratory MedicineQuanzhou China
- Department of Endocrinology and MetabolismSecond Affiliated Hospital of Fujian Medical UniversityQuanzhou China
- Department of Clinical ResearchHi‐Q Biomedical LaboratoryQuanzhou China
| | - Ying‐Jang Lai
- Department of Food ScienceNational Quemoy UniversityQuemoy Taiwan
| | - Yi‐Ming Zeng
- Department of Pulmonary MedicineSecond Affiliated Hospital of Fujian Medical UniversityQuanzhou China
- Fujian Province Center for Respiratory MedicineQuanzhou China
| | - Ru‐Hai Lin
- Department of Endocrinology and MetabolismSecond Affiliated Hospital of Fujian Medical UniversityQuanzhou China
| | - Jie‐Ren Deng
- Department of Food SciencesNational Chiayi UniversityChiayi Taiwan
| | | | - She‐Ching Wu
- Department of Food SciencesNational Chiayi UniversityChiayi Taiwan
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17
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Hwang E, Ngo HT, Seo SA, Park B, Zhang M, Gao W, Hoo Yi T. Urtica thunbergiana prevents UVB-induced premature skin aging by regulating the transcription factor NFATc1: An in vitro and in vivo study. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.07.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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18
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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: 84] [Impact Index Per Article: 12.0] [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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Grape powder consumption affects the expression of neurodegeneration-related brain proteins in rats chronically fed a high-fructose–high-fat diet. J Nutr Biochem 2017; 43:132-140. [DOI: 10.1016/j.jnutbio.2017.02.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 01/11/2017] [Accepted: 02/08/2017] [Indexed: 01/19/2023]
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20
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Sadowska-Bartosz I, Bartosz G. Effect of glycation inhibitors on aging and age-related diseases. Mech Ageing Dev 2016; 160:1-18. [PMID: 27671971 DOI: 10.1016/j.mad.2016.09.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 06/30/2016] [Accepted: 09/21/2016] [Indexed: 02/07/2023]
Abstract
Vast evidence supports the view that glycation of proteins is one of the main factors contributing to aging and is an important element of etiopathology of age-related diseases, especially type 2 diabetes mellitus, cataract and neurodegenerative diseases. Counteracting glycation can therefore be a means of increasing both the lifespan and healthspan. In this review, accumulation of glycation products during aging is presented, pathophysiological effects of glycation are discussed and ways of attenuation of the effects of glycation are described, concentrating on prevention of glycation. The effects of glycation and glycation inhibitors on the course of selected age-related diseases, such as Alzheimer's disease, Parkinson's disease and cataract are also reviewed.
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Affiliation(s)
- Izabela Sadowska-Bartosz
- Department of Biochemistry and Cell Biology, Faculty of Biology and Agriculture, University of Rzeszow, Zelwerowicza St. 4, 35-604 Rzeszów, Poland.
| | - Grzegorz Bartosz
- Department of Biochemistry and Cell Biology, Faculty of Biology and Agriculture, University of Rzeszow, Zelwerowicza St. 4, 35-604 Rzeszów, Poland; Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 90-236 Lodz, Poland
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21
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Venkatesan T, Jeong MJ, Choi YW, Park EJ, El-Desouky SK, Kim YK. Deoxyrhapontigenin, a Natural Stilbene Derivative Isolated From Rheum undulatum L. Induces Endoplasmic Reticulum Stress-Mediated Apoptosis in Human Breast Cancer Cells. Integr Cancer Ther 2016; 15:NP44-NP52. [PMID: 27151591 PMCID: PMC5739162 DOI: 10.1177/1534735416636958] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 02/04/2016] [Accepted: 02/07/2016] [Indexed: 02/03/2023] Open
Abstract
Although current chemotherapeutic agents are active at the beginning of therapy, the most common risk is the development of resistance during later stages in almost all cancer types including breast cancer. Hence, investigation of novel drugs is still a priority goal for cancer treatment. The objective of the present study is to investigate the anticancer effect of a derivative of stilbene, deoxyrhapontigenin (DR) isolated from Rheum undulatum L. root extracts against the chemoresistant MCF-7/adr and its parental MCF-7 human breast cancer cells. The morphological images indicate that DR induces an extensive cytoplasmic vacuolation in breast cancer cells. Mechanistic investigations revealed that DR treatment causes endoplasmic reticulum (ER) dilation and upregulated the expression of ER stress markers GRP78, IRE1α, eIF2α, CHOP, JNK, and p38. Subsequently, we also identified that DR increases the levels of apoptotic fragment of PARP (89 kDa) in breast cancer cells. Blocking the expression of one of the components of the ER stress–mediated apoptosis pathway, CHOP using siRNA significantly decreased DR-induced apoptotic cleavage of PARP. In summary, the present study suggests that the induction of ER stress–mediated apoptosis by DR may account for its cytotoxic effects in human breast cancer cells.
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Affiliation(s)
| | | | | | | | - Samy Korany El-Desouky
- Jazan University, Jazan, Kingdom of Saudi Arabia.,National Research Center, Cairo, Dokki, Egypt
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22
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Vinayagam R, Jayachandran M, Xu B. Antidiabetic Effects of Simple Phenolic Acids: A Comprehensive Review. Phytother Res 2015; 30:184-99. [PMID: 26634804 DOI: 10.1002/ptr.5528] [Citation(s) in RCA: 155] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Revised: 09/21/2015] [Accepted: 11/06/2015] [Indexed: 12/13/2022]
Abstract
Diabetes mellitus (DM) has become a major public health threat across the globe. Current antidiabetic therapies are based on synthetic drugs that very often have side effects. It has been widely acknowledged that diet plays an important role in the management of diabetes. Phenolic acids are widely found in daily foods such as fruits, vegetables, cereals, legumes, and wine and they provide biological, medicinal, and health properties. Simple phenolic acids have been shown to increase glucose uptake and glycogen synthesis, improve glucose and lipid profiles of certain diseases (obesity, cardiovascular diseases, DM, and its complication). The current review is an attempt to list out the antidiabetic effects of simple phenolic acids from medicinal plants and botanical foods.
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Affiliation(s)
- Ramachandran Vinayagam
- Food Science and Technology Program, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai, Guangdong, 519085, China
| | - Muthukumaran Jayachandran
- Food Science and Technology Program, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai, Guangdong, 519085, China
| | - Baojun Xu
- Food Science and Technology Program, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai, Guangdong, 519085, China
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23
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Prevention of protein glycation by natural compounds. Molecules 2015; 20:3309-34. [PMID: 25690291 PMCID: PMC6272653 DOI: 10.3390/molecules20023309] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 02/10/2015] [Accepted: 02/11/2015] [Indexed: 12/14/2022] Open
Abstract
Non-enzymatic protein glycosylation (glycation) contributes to many diseases and aging of organisms. It can be expected that inhibition of glycation may prolong the lifespan. The search for inhibitors of glycation, mainly using in vitro models, has identified natural compounds able to prevent glycation, especially polyphenols and other natural antioxidants. Extrapolation of results of in vitro studies on the in vivo situation is not straightforward due to differences in the conditions and mechanism of glycation, and bioavailability problems. Nevertheless, available data allow to postulate that enrichment of diet in natural anti-glycating agents may attenuate glycation and, in consequence, ageing.
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Synthesis and biological evaluation of novel curcuminoid derivatives. Molecules 2014; 19:16349-72. [PMID: 25314599 PMCID: PMC6271059 DOI: 10.3390/molecules191016349] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 09/26/2014] [Accepted: 09/29/2014] [Indexed: 11/16/2022] Open
Abstract
Curcuminoids have been reported to possess multiple bioactivities, such as antioxidant, anticancer and anti-inflammatory properties. Three novel series of curcuminoid derivatives (11a-h, 15a-h and 19a-d) with enhanced bioactivity have been synthesized. Among the synthesized compounds, 11b exhibited the most significant activity with an MIC of 0.5 µM /mL against selected medically important Gram-positive cocci (S. aureus and S. viridans) and Gram-negative bacilli (E. coli and E. cloacae). The derivatives exhibited remarkable results in an antioxidant test with an IC50 2.4- to 9.3-folder smaller than curcuminoids. With respect to antiproliferative activity against Hep-G2, LX-2, SMMC7221 and MDA-MB-231, the derivatives exhibited an effect stronger than curcuminoids with an IC50 ranging from 0.18 to 4.25 µM.
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