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Chávez BY, Paz JL, Gonzalez-Paz LA, Alvarado YJ, Contreras JS, Loroño-González MA. Theoretical Study of Cyanidin-Resveratrol Copigmentation by the Functional Density Theory. Molecules 2024; 29:2064. [PMID: 38731555 PMCID: PMC11085293 DOI: 10.3390/molecules29092064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 04/01/2024] [Accepted: 04/03/2024] [Indexed: 05/13/2024] Open
Abstract
Anthocyanins are colored water-soluble plant pigments. Upon consumption, anthocyanins are quickly absorbed and can penetrate the blood-brain barrier (BBB). Research based on population studies suggests that including anthocyanin-rich sources in the diet lowers the risk of neurodegenerative diseases. The copigmentation caused by copigments is considered an effective way to stabilize anthocyanins against adverse environmental conditions. This is attributed to the covalent and noncovalent interactions between colored forms of anthocyanins (flavylium ions and quinoidal bases) and colorless or pale-yellow organic molecules (copigments). The present work carried out a theoretical study of the copigmentation process between cyanidin and resveratrol (CINRES). We used three levels of density functional theory: M06-2x/6-31g+(d,p) (d3bj); ωB97X-D/6-31+(d,p); APFD/6-31+(d,p), implemented in the Gaussian16W package. In a vacuum, the CINRES was found at a copigmentation distance of 3.54 Å between cyanidin and resveratrol. In water, a binding free energy ∆G was calculated, rendering -3.31, -1.68, and -6.91 kcal/mol, at M06-2x/6-31g+(d,p) (d3bj), ωB97X-D/6-31+(d,p), and APFD/6-31+(d,p) levels of theory, respectively. A time-dependent density functional theory (TD-DFT) was used to calculate the UV spectra of the complexes and then compared to its parent molecules, resulting in a lower energy gap at forming complexes. Excited states' properties were analyzed with the ωB97X-D functional. Finally, Shannon aromaticity indices were calculated and isosurfaces of non-covalent interactions were evaluated.
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Affiliation(s)
- Breyson Yaranga Chávez
- Departamento Académico de Fisicoquímica, Facultad de Química e Ingeniería Química, Universidad Nacional Mayor de San Marcos, Lima 15081, Peru
| | - José L. Paz
- Departamento Académico de Química Inorgánica, Facultad de Química e Ingeniería Química, Universidad Nacional Mayor de San Marcos, Lima 15081, Peru
| | - Lenin A. Gonzalez-Paz
- Instituto Venezolano de Investigaciones Científicas (IVIC), Centro de Biomedicina Molecular (CBM), Laboratorio de Biocomputación (LB), Maracaibo 4001, Zulia, República Bolivariana de Venezuela
| | - Ysaias J. Alvarado
- Instituto Venezolano de Investigaciones Científicas (IVIC), Centro de Biomedicina Molecular (CBM), Laboratorio de Biofísica Teórica y Experimental (LQBTE), Maracaibo 4001, Zulia, República Bolivariana de Venezuela
| | - Julio Santiago Contreras
- Departamento Académico de Química Orgánica, Facultad de Química e Ingeniería Química, Universidad Nacional Mayor de San Marcos, Lima 15081, Peru
| | - Marcos A. Loroño-González
- Departamento Académico de Fisicoquímica, Facultad de Química e Ingeniería Química, Universidad Nacional Mayor de San Marcos, Lima 15081, Peru
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Saini RK, Khan MI, Shang X, Kumar V, Kumari V, Kesarwani A, Ko EY. Dietary Sources, Stabilization, Health Benefits, and Industrial Application of Anthocyanins-A Review. Foods 2024; 13:1227. [PMID: 38672900 PMCID: PMC11049351 DOI: 10.3390/foods13081227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/06/2024] [Accepted: 04/15/2024] [Indexed: 04/28/2024] Open
Abstract
Natural phytochemicals are well known to protect against numerous metabolic disorders. Anthocyanins are vacuolar pigments belonging to the parent class of flavonoids. They are well known for their potent antioxidant and gut microbiome-modulating properties, primarily responsible for minimizing the risk of cardiovascular diseases, diabetes, obesity, neurodegenerative diseases, cancer, and several other diseases associated with metabolic syndromes. Berries are the primary source of anthocyanin in the diet. The color and stability of anthocyanins are substantially influenced by external environmental conditions, constraining their applications in foods. Furthermore, the significantly low bioavailability of anthocyanins greatly diminishes the extent of the actual health benefits linked to these bioactive compounds. Multiple strategies have been successfully developed and utilized to enhance the stability and bioavailability of anthocyanins. This review provides a comprehensive view of the recent advancements in chemistry, biosynthesis, dietary sources, stabilization, bioavailability, industrial applications, and health benefits of anthocyanins. Finally, we summarize the prospects and challenges of applications of anthocyanin in foods.
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Affiliation(s)
- Ramesh Kumar Saini
- School of Health Sciences and Technology, UPES, Dehradun 248007, Uttarakhand, India;
| | - Mohammad Imtiyaj Khan
- Biochemistry and Molecular Biology Lab, Department of Biotechnology, Gauhati University, Guwahati 781014, Assam, India;
| | - Xiaomin Shang
- Jilin Provincial Key Laboratory of Nutrition and Functional Food, Jilin University, Changchun 130062, China;
| | - Vikas Kumar
- Department of Food Science and Technology, Punjab Agricultural University, Ludhiana 141004, Punjab, India;
| | - Varsha Kumari
- Department of Plant Breeding and Genetics, Sri Karan Narendra Agriculture University, Jobner, Jaipur 302001, Rajasthan, India;
| | - Amit Kesarwani
- Department of Agronomy, College of Agriculture, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar 263145, Uttarakhand, India;
| | - Eun-Young Ko
- Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul 05029, Republic of Korea
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Mallamaci R, Conforti F, Statti G, Avato P, Barbarossa A, Meleleo D. Phenolic Compounds from Tropea Red Onion as Dietary Agents for Protection against Heavy Metals Toxicity. Life (Basel) 2024; 14:495. [PMID: 38672765 PMCID: PMC11051521 DOI: 10.3390/life14040495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/06/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
The present study aims to highlight the cell protective effect of Tropea red onion (TRO) hydroalcoholic extract and some of its components against "non-essential" heavy metals. For this purpose, the cytoprotective roles of cyanidin, cyanidin-3-O-glucoside and quercetin against Cd, Hg and Pb and of TRO extract against Hg and Pb have been investigated, and data are reported here. To the best of our knowledge, this is the first detailed evaluation of the protective effect against cell damage induced by "non-essential" heavy metals through the simultaneous administration of cyanidin, cyanidin-3-O-glucoside and quercetin with CdCl2, HgCl2 or PbCl2 and the TRO extract against HgCl2 and PbCl2. Present data are also compared with our previous results from the TRO extract against Cd. The antioxidant capacity of the extract was also determined by the ferric reducing antioxidant power (FRAP) and the bovine brain peroxidation assay. Both of the assays indicated a good antioxidant capacity of the extract. Cell viability and the impact on necrotic cell death were examined by the MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) test and lactate dehydrogenase (LDH) release assay. After 24 h of exposure, Caco-2 cell viability decreased by approximately 50% at 0.25 μM for Cd, Hg and Pb and, after 72 h, the ranking order of "non-essential" heavy metal toxicity on cell viability was PbCl2 > CdCl2 > HgCl2. Cell viability was assessed by treating the cells with the biomolecules at doses of 25, 50 and 100 µg/mL for 24 and 72 h. The same analysis was carried out on Caco-2 cells treated with combinations of TRO extract, cyanidin, cyanidin-3-O-glucoside, or quercetin and "non-essential" heavy metals. Treatments with the bioactive metabolites did not significantly improve cell viability. The identical treatment of Caco-2 cells produced instead LDH release, suggesting a decrease in cell viability. Consistently with the finding that TRO extract showed a good antioxidant activity, we suggest that its higher cytotoxicity, compared to that of the individual assayed phytochemicals, may be derived by the combined antioxidant and chelating properties of all the molecules present in the extract. Therefore, from all the acquired experimental evidence, it appears that the TRO extract may be a better promising protective agent against the toxic effect of Cd, Hg and Pb compared to its bioactive metabolites.
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Affiliation(s)
- Rosanna Mallamaci
- Department of Biosciences, Biotechnologies and Environment, University of Bari “Aldo Moro”, 70125 Bari, Italy
| | - Filomena Conforti
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria-DFSSN, 87036 Rende, Italy;
| | - Giancarlo Statti
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria-DFSSN, 87036 Rende, Italy;
| | - Pinarosa Avato
- Department of Pharmacy-Drug Sciences, University of Bari “Aldo Moro”, 70125 Bari, Italy; (P.A.); (A.B.)
| | - Alexia Barbarossa
- Department of Pharmacy-Drug Sciences, University of Bari “Aldo Moro”, 70125 Bari, Italy; (P.A.); (A.B.)
| | - Daniela Meleleo
- Department of Science of Agriculture, Food, Natural Resources and Engineering, University of Foggia, 71122 Foggia, Italy;
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Lu Q, Yan Q, Li X. Regulation of Intestinal Flora and Immune Response by Cyanidin Exhibits Protective Effect against Type-2 Diabetes in Rat Model. DOKL BIOCHEM BIOPHYS 2023; 513:S67-S74. [PMID: 38379077 DOI: 10.1134/s1607672923600422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/10/2023] [Accepted: 12/11/2023] [Indexed: 02/22/2024]
Abstract
In the current study the effects of metformin and cyanidin on the immune system and intestinal flora in rats with type-2 diabetes was investigated. The findings showed that metformin or cyanidin treatment considerably reduced the rise in body weight and glucose levels induced by type-2 diabetes. The type-2 diabetic rats' glucose tolerance was significantly increased by cyanidin administration comparable to that of metformin. Cyanidin administration resulted in a significant reduction in serum cholesterol and low-density lipoprotein (LDL) levels in rats with type-2 diabetes. Treatment with cyanidin significantly increased the ratio of high-density lipoprotein to low-density lipoprotein in type-2 diabetes rats. Cyanidin administration significantly raised the ratio of Firmicutes to Bacteroidetes in the fecal samples of type-2 diabetic rats compared to the model group. In comparison to the model group, it also significantly raised the levels of Lactobacillus intestinalis, Lactobacillus gasseri, and Lactobacillus reuteri in the type-2 diabetes rats. In type-2 diabetes rat fecal samples, the abundance of Christensenellaceae significantly increased while Enterobacteriaceae and Proteobacteria were found to decrease upon cyanidin administration. Furthermore, cyanidin administration to the rats with type-2 diabetes significantly improved the glucose homeostasis. In conclusion, the study demonstrates that cyanidin enhances glucose homeostasis in rats with type-2 diabetes, potentially through controlling intestinal flora. Thus, cyanidin may be looked into more as a possible therapeutic agent for type 2 diabetes.
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Affiliation(s)
- Qingyan Lu
- Department of Clinical Laboratory, Xuzhou Central Hospital, no. 199, 221009, Xuzhou, China
| | - Qiannan Yan
- Department of Clinical Laboratory, Xuzhou Central Hospital, no. 199, 221009, Xuzhou, China
| | - Xiaojie Li
- Department of Clinical Laboratory, Xuzhou Central Hospital, no. 199, 221009, Xuzhou, China.
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Ye L, Bai F, Zhang L, Luo M, Gao L, Wang Z, Peng J, Chen Q, Luo X. Transcriptome and metabolome analyses of anthocyanin biosynthesis in post-harvest fruits of a full red-type kiwifruit ( Actinidia arguta) 'Jinhongguan'. Front Plant Sci 2023; 14:1280970. [PMID: 37877082 PMCID: PMC10591155 DOI: 10.3389/fpls.2023.1280970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 09/22/2023] [Indexed: 10/26/2023]
Abstract
Anthocyanin is the main component of pigment in red-fleshed kiwifruit. 'Jinhongguan' is a new cultivar of Actinidia arguta with red peel and flesh after harvest. However, the specific types of anthocyanin in the 'Jinhongguan' fruit and its biosynthesis pathways remain largely unknown. Here, the total anthocyanin content in the fruit color conversion process was determined. The results showed that total anthocyanin content increased with the deepening color of the peel and flesh. To identify the genes related to anthocyanin biosynthesis and the types of anthocyanins in the 'Jinhongguan' fruit, a combined analysis of transcriptome and anthocyanin-targeted metabolome was carried out. A total of 5751 common differentially expressed genes (DEGs) at different stages of peel and flesh were identified, of which 2767 were common up-DEGs and 2976 were common down-DEGs. KEGG and GO enrichment analyses showed that the common up-DEGs were significantly enriched in anthocyanin synthesis-related pathways, suggesting some up-DEGs are involved in anthocyanin biosynthesis. In total, 29 metabolites were detected in the flesh by anthocyanin-targeted metabolome. Among these, nine were differential accumulation metabolites (DAMs) in comparison to red flesh vs green flesh. Six DAMs were up-regulated, with five of them were cyanidins. The content of cyanidin-3-O-galactoside was much higher than that of other DAMs, making it the main pigment in 'Jinhongguan'. Moreover, a total of 36 anthocyanin synthesis-related structural genes, 27 MYB transcription factors (TFs), 37 bHLH TFs and 9 WDR TFs were screened from the common DEGs. Correlation analysis of transcriptome and metabolome revealed that 9 structural genes, 6 MYB TFs, 6 bHLH TFs and 1 WDR TF were significantly associated with cyanidin-3-O-galactoside. Further, qRT-PCR analysis demonstrated that structural genes (AaPAL3, Aa4CL3, AaCHS2/3/8/9/11, AaDFR1/2, AaANR1, UFGT3a and UFGT6b) and TFs (MYB108, bHLH30, bHLH94-1 and WD43) play important roles in cyanidin biosynthesis. Overall, this study identified cyanidin-3-O-galactoside as the main anthocyanin type and revealed key candidate genes of red coloration of post-harvest fruit in Actinidia arguta. These findings provided new insights into the color formation mechanism of post-harvest fruit and offered a theoretical basis for color regulation in kiwifruit.
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Affiliation(s)
- Lixia Ye
- Hubei Key Laboratory of Germplasm Innovation and Utilization of Fruit Trees, Institute of Fruit and Tea, Hubei Academy of Agricultural Science, Wuhan, China
| | - Fuxi Bai
- Hubei Key Laboratory of Germplasm Innovation and Utilization of Fruit Trees, Institute of Fruit and Tea, Hubei Academy of Agricultural Science, Wuhan, China
| | - Lei Zhang
- Hubei Key Laboratory of Germplasm Innovation and Utilization of Fruit Trees, Institute of Fruit and Tea, Hubei Academy of Agricultural Science, Wuhan, China
| | - Minmin Luo
- Hubei Key Laboratory of Germplasm Innovation and Utilization of Fruit Trees, Institute of Fruit and Tea, Hubei Academy of Agricultural Science, Wuhan, China
- College of Horticulture and Gardening, Yangtze University, Jingzhou, China
| | - Lei Gao
- Hubei Key Laboratory of Germplasm Innovation and Utilization of Fruit Trees, Institute of Fruit and Tea, Hubei Academy of Agricultural Science, Wuhan, China
| | - Zhi Wang
- Hubei Key Laboratory of Germplasm Innovation and Utilization of Fruit Trees, Institute of Fruit and Tea, Hubei Academy of Agricultural Science, Wuhan, China
| | - Jue Peng
- Hubei Key Laboratory of Germplasm Innovation and Utilization of Fruit Trees, Institute of Fruit and Tea, Hubei Academy of Agricultural Science, Wuhan, China
| | - Qinghong Chen
- Hubei Key Laboratory of Germplasm Innovation and Utilization of Fruit Trees, Institute of Fruit and Tea, Hubei Academy of Agricultural Science, Wuhan, China
| | - Xuan Luo
- Hubei Key Laboratory of Germplasm Innovation and Utilization of Fruit Trees, Institute of Fruit and Tea, Hubei Academy of Agricultural Science, Wuhan, China
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Lavado N, Uriarte D, Moreno D, Mancha LA, Prieto MH, Valdés ME. Crop forcing technique and irrigation strategy modified the content and phenolic profile of cv. Tempranillo grape berries grown in a semi-arid climate. J Sci Food Agric 2023; 103:5028-5038. [PMID: 36995905 DOI: 10.1002/jsfa.12590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/27/2023] [Accepted: 03/30/2023] [Indexed: 06/08/2023]
Abstract
BACKGROUND Climate change modifies the content and phenolic profiles of grapes and wines. It is known that high temperatures, related to climate change, reduce anthocyanins and procyanidin (catechin and tannin) compounds accumulated in the berries. In recent years, with the aim of improving the phenolic composition of the berries, the technique of crop forcing has been proposed to delay grape ripening to a more favourable period of temperatures. RESULTS In this study, crop forcing was applied to cv. Tempranillo vines on two different dates, after flowering (F1) and after fruit set (F2), and compared to a treatment control (NF, without forcing). Additionally, as a secondary factor, two irrigation strategies were established in each treatment: irrigation with no water stress, and a pre-veraison deficit irrigation. The study was carried out in three consecutive years (2017-2019). For most of the parameters analysed, no interaction was found. Therefore, for these parameters, the effect of each of these techniques was investigated independently. Regardless of the irrigation strategy, F2 berries achieved higher contents of catechins and anthocyanins than NF berries. Each year, regardless of the irrigation strategy, crop forcing increased the content of monoglucoside forms, and had a positive effect on the total content of malvidin, petunidin, delphinidin, peonidin and malvidin derivatives, but only affected acetyl and coumaryl forms in 2017. However, the effect of irrigation strategy was less significant and consistent, being more dependent on the vintage. CONCLUSION Regardless of vine water status, crop forcing technique applied after fruit set could be used by vine growers to delay ripening of the grapes and thus achieve an increase in the anthocyanin characteristics of the grapes. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Nieves Lavado
- Center for Scientific and Technological Research of Extremadura (CICYTEX), Agricultural Research Institute "Finca La Orden-Valdesequera", Highway A-5 km. 372, Guadajira, Badajoz, 06187, Spain
| | - David Uriarte
- Center for Scientific and Technological Research of Extremadura (CICYTEX), Agricultural Research Institute "Finca La Orden-Valdesequera", Highway A-5 km. 372, Guadajira, Badajoz, 06187, Spain
| | - Daniel Moreno
- Center for Scientific and Technological Research of Extremadura (CICYTEX), Food and Agriculture Technology Institute of Extremadura (INTAEX), Avenue Adolfo Suárez s/n, Badajoz, 06071, Spain
| | - Luis A Mancha
- Center for Scientific and Technological Research of Extremadura (CICYTEX), Agricultural Research Institute "Finca La Orden-Valdesequera", Highway A-5 km. 372, Guadajira, Badajoz, 06187, Spain
| | - M Henar Prieto
- Center for Scientific and Technological Research of Extremadura (CICYTEX), Agricultural Research Institute "Finca La Orden-Valdesequera", Highway A-5 km. 372, Guadajira, Badajoz, 06187, Spain
| | - M Esperanza Valdés
- Center for Scientific and Technological Research of Extremadura (CICYTEX), Food and Agriculture Technology Institute of Extremadura (INTAEX), Avenue Adolfo Suárez s/n, Badajoz, 06071, Spain
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Meleleo D, Avato P, Conforti F, Argentieri MP, Messina G, Cibelli G, Mallamaci R. Interaction of Quercetin, Cyanidin, and Their O-Glucosides with Planar Lipid Models: Implications for Their Biological Effects. Membranes (Basel) 2023; 13:600. [PMID: 37367804 DOI: 10.3390/membranes13060600] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 06/10/2023] [Accepted: 06/13/2023] [Indexed: 06/28/2023]
Abstract
Flavonoids are specialized metabolites produced by plants, as free aglycones or as glycosylated derivatives, which are particularly endowed with a variety of beneficial health properties. The antioxidant, anti-inflammatory, antimicrobial, anticancer, antifungal, antiviral, anti-Alzheimer's, anti-obesity, antidiabetic, and antihypertensive effects of flavonoids are now known. These bioactive phytochemicals have been shown to act on different molecular targets in cells including the plasma membrane. Due to their polyhydroxylated structure, lipophilicity, and planar conformation, they can either bind at the bilayer interface or interact with the hydrophobic fatty acid tails of the membrane. The interaction of quercetin, cyanidin, and their O-glucosides with planar lipid membranes (PLMs) similar in composition to those of the intestine was monitored using an electrophysiological approach. The obtained results show that the tested flavonoids interact with PLM and form conductive units. The modality of interaction with the lipids of the bilayer and the alteration of the biophysical parameters of PLMs induced by the tested substances provided information on their location in the membrane, helping to elucidate the mechanism of action which underlies some pharmacological properties of flavonoids. To our knowledge, the interaction of quercetin, cyanidin, and their O-glucosides with PLM surrogates of the intestinal membrane has never been previously monitored.
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Affiliation(s)
- Daniela Meleleo
- Department of Science of Agriculture, Food, Natural Resources and Engineering, University of Foggia, 71122 Foggia, Italy
| | - Pinarosa Avato
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", 70125 Bari, Italy
| | - Filomena Conforti
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy
| | - Maria Pia Argentieri
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", 70125 Bari, Italy
| | - Giovanni Messina
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy
| | - Giuseppe Cibelli
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy
| | - Rosanna Mallamaci
- Department of Biosciences, Biotechnologies and Environment, University of Bari "Aldo Moro", 70125 Bari, Italy
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Vicente J, Benedetti M, Martelliti P, Vázquez L, Gentilini MV, Peñaranda Figueredo FA, Nabaes Jodar MS, Viegas M, Barquero AA, Bueno CA. The Flavonoid Cyanidin Shows Immunomodulatory and Broad-Spectrum Antiviral Properties, Including SARS-CoV-2. Viruses 2023; 15:v15040989. [PMID: 37112969 PMCID: PMC10143848 DOI: 10.3390/v15040989] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/05/2023] [Accepted: 04/14/2023] [Indexed: 04/29/2023] Open
Abstract
New antiviral treatments are needed to deal with the unpredictable emergence of viruses. Furthermore, vaccines and antivirals are only available for just a few viral infections, and antiviral drug resistance is an increasing concern. Cyanidin (a natural product also called A18), a key flavonoid that is present in red berries and other fruits, attenuates the development of several diseases, through its anti-inflammatory effects. Regarding its mechanism of action, A18 was identified as an IL-17A inhibitor, resulting in the attenuation of IL-17A signaling and associated diseases in mice. Importantly, A18 also inhibits the NF-κB signaling pathway in different cell types and conditions in vitro and in vivo. In this study, we report that A18 restricts RSV, HSV-1, canine coronavirus, and SARS-CoV-2 multiplication, indicating a broad-spectrum antiviral activity. We also found that A18 can control cytokine and NF-κB induction in RSV-infected cells independently of its antiviral activity. Furthermore, in mice infected with RSV, A18 not only significantly reduces viral titers in the lungs, but also diminishes lung injury. Thus, these results provide evidence that A18 could be used as a broad-spectrum antiviral and may contribute to the development of novel therapeutic targets to control these viral infections and pathogenesis.
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Affiliation(s)
- Josefina Vicente
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires 1428, Argentina
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Universidad de Buenos Aires, Buenos Aires 1428, Argentina
| | - Martina Benedetti
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires 1428, Argentina
| | - Paula Martelliti
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires 1428, Argentina
| | - Luciana Vázquez
- Unidad Operativa Centro de Contención Biológica (UOCCB), Administración Nacional de Laboratorios e Institutos de Salud (ANLIS), Buenos Aires 1282, Argentina
| | - María Virginia Gentilini
- Instituto de Medicina Traslacional, Trasplante y Bioingeniería (IMETTYB)-CONICET, Buenos Aires 1093, Argentina
| | - Freddy Armando Peñaranda Figueredo
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires 1428, Argentina
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Universidad de Buenos Aires, Buenos Aires 1428, Argentina
| | - Mercedes Soledad Nabaes Jodar
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires 1425, Argentina
- Laboratorio de Virología, Hospital de Niños Ricardo Gutiérrez, Buenos Aires 1417, Argentina
| | - Mariana Viegas
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires 1425, Argentina
- Laboratorio de Virología, Hospital de Niños Ricardo Gutiérrez, Buenos Aires 1417, Argentina
| | - Andrea Alejandra Barquero
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires 1428, Argentina
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Universidad de Buenos Aires, Buenos Aires 1428, Argentina
| | - Carlos Alberto Bueno
- Laboratorio de Virología, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires 1428, Argentina
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Universidad de Buenos Aires, Buenos Aires 1428, Argentina
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Safdar MA, Aslam RMN, Shakeel A, Shiza, Waqar M, Jmail A, Mehmood MH, Gul H. Cyanidin as potential anticancer agent targeting various proliferative pathways. Chem Biol Drug Des 2023; 101:438-452. [PMID: 36326796 DOI: 10.1111/cbdd.14173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 10/27/2022] [Accepted: 10/29/2022] [Indexed: 11/05/2022]
Abstract
A natural compound cyanidin, which is a type of anthocyanin present in pigmented leaves, fruits, and flowers; distributed widely in berries, apples, and oranges possess anticancer activities, thus curing various types of cancer such as breast, liver, lung, prostate, and thyroid cancer. The article provides an insight into the potential of using a single phytochemical, cyanidin to treat various cancer types including breast, liver, lung, prostate, and thyroid cancer. Information about cyanidin and its pharmacological impact on cancer was collected from books, scientific journals, and reports through electronic data search (Web of Science, Scifinder, PubMed, Scopus, Google Scholar, Elsevier, Springer, Wiley, ACS, Science Direct, CNKI as well as Kew Plants of the Word Online) and library. Cyanidin produces its effects against cancer probably by inhibiting (RAS, MAPK) and activating (caspases-3 and P-38) innovative molecular pathways. It may cause cell cycle arrest, cell differentiation processes and changes in redox status which trigger the cytotoxic chemotherapeutic effects. However, it also optimizes the chemotherapeutic targets which are cancer cells less responsive to chemotherapy. Cancer is considered the most widely spread disease and cyanidin from natural origin provides an essential role in treatment of cancer by approaching various mechanistic pathways.
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Affiliation(s)
- Muhammad Azhaf Safdar
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Government, College University, Faisalabad, Pakistan
| | - Rana Muhammad Nabeel Aslam
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Government, College University, Faisalabad, Pakistan
| | - Amna Shakeel
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Government, College University, Faisalabad, Pakistan
| | - Shiza
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Government, College University, Faisalabad, Pakistan
| | - Mashael Waqar
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Government, College University, Faisalabad, Pakistan
| | - Abdullah Jmail
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Government, College University, Faisalabad, Pakistan
| | - Malik Hassan Mehmood
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Government, College University, Faisalabad, Pakistan
| | - Humaira Gul
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Government, College University, Faisalabad, Pakistan
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10
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Xue Z, Tian L, Zheng H, Zhang Y, Song J. Cyanidin inhibits glioma stem cells proliferation through the Wnt signaling pathway. Int J Neurosci 2022:1-8. [PMID: 36458565 DOI: 10.1080/00207454.2022.2154669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 06/14/2022] [Accepted: 06/22/2022] [Indexed: 12/05/2022]
Abstract
BACKGROUND Cyanidin has a protective effect on the nervous system and has been reported to treat tumor effectively. However, its impact on glioma stem cells (GSC) is unknown. METHODS Using seven GSC lines, the anti-tumor effect of cyanidin is tested. The effect of cyanidin on the cell viability in each cell line is evaluated. Wnt signaling pathway-related genes are checked after treatment of cyanidin. Cytoplasmic/nuclear β-catenin protein levels post cyanidin treatment is detected. Protein levels of c-Myc after cyanidin treatment are determined. Twist1 and Snail1 protein levels after cyanidin treatment are checked as well. RESULTS Cyanidin significantly reduces the cell viability of all GSCs, and exhibited the most substantial effect in GBM2 but no apparent effect in 293T cells. It can regulate the Wnt signaling pathway of all GSC lines. In the GBM2, GBM7, G166, and G179 cell lines, there is upregulation of WNT1 and MYC genes, while in the G144 and GliNS2 cell line, these two genes are down-regulated after cyanidin treatment. Cytoplasmic and nuclear protein levels of β-catenin in all cell lines are down-regulated. Cyanidin treatment significantly decreases the protein level for c-Myc in the GBM2 cell line compared with untreated cells, not in G144 or GliNS2 cells. Furthermore, cyanidin strongly reduces the expression of Twist1 and Snail1 in GBM2, G179, and G144 cell lines, while the GliNS2 cells show an opposite change in the cytoplasm and no change in nuclear. CONCLUSION Cyanidin exerts an anti-tumor effect in glioma stem cell lines, probably through the Wnt signaling pathway.
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Affiliation(s)
- Zicheng Xue
- Department of Pharmacy, Maternity and Child Health Care of Zaozhuang, Zaozhuang City, Shandong Province, China
| | - Lei Tian
- Department of Pharmacy, People's Hospital of Shizhong District, Zaozhuang City, Shandong Province, China
| | - Hui Zheng
- Zaozhuang Vocational College of Science and Technology, Shandong Province, China
| | - Yucai Zhang
- Department of Pharmacy, Maternity and Child Health Care of Zaozhuang, Zaozhuang City, Shandong Province, China
| | - Junying Song
- Department of Pharmacy, Maternity and Child Health Care of Zaozhuang, Zaozhuang City, Shandong Province, China
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Wang B, Cui S, Mao B, Zhang Q, Tian F, Zhao J, Tang X, Chen W. Cyanidin Alleviated CCl 4-Induced Acute Liver Injury by Regulating the Nrf2 and NF-κB Signaling Pathways. Antioxidants (Basel) 2022; 11:antiox11122383. [PMID: 36552590 PMCID: PMC9774769 DOI: 10.3390/antiox11122383] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/25/2022] [Accepted: 11/25/2022] [Indexed: 12/04/2022] Open
Abstract
Acute liver injury has multiple causes and can result in liver failure. In this study, we evaluated the hepatoprotective ability of cyanidin (Cy) and investigated its associated mechanisms. Cy administration significantly and dose-dependently ameliorated acute liver injury induced by carbon tetrachloride (CCl4). High-dose Cy showed effects comparable to those achieved by the positive control (silymarin). Severe oxidative stress and inflammatory responses in the liver tissue induced by CCl4 were significantly mitigated by Cy supplementation. The total antioxidant capacity and the activity of superoxide dismutase, catalase, and glutathione peroxidase were increased and the content of malondialdehyde, lipid peroxide, tumor necrosis factor α, interleukin-1β, and interleukin-6 were decreased. Additionally, the Nrf2 and NF-κB signaling pathways, which regulate antioxidative and inflammatory responses, were analyzed using quantitative real-time polymerase chain reaction and western blot assay. Cy treatment not only increased Nrf2 transcription and expression but also decreased NF-κB signaling. Moreover, molecular docking simulation indicated that Cy had high affinity for Keap1 and NF-κB/p65, which may promote nuclear translocation of Nrf2 and inhibit that of NF-κB. In summary, Cy treatment exerted antioxidative and anti-inflammatory effects and ameliorated liver injury by increasing Nrf2 and inhibiting the NF-κB pathway, demonstrating the potential of Cy as a therapeutic agent in liver injury.
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Affiliation(s)
- Bulei Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Shumao Cui
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Bingyong Mao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Qiuxiang Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Fengwei Tian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xin Tang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Correspondence:
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
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12
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Agrizzi Verediano T, Agarwal N, Stampini Duarte Martino H, Kolba N, Grancieri M, Dias Paes MC, Tako E. Effect of Black Corn Anthocyanin-Rich Extract ( Zea mays L.) on Cecal Microbial Populations In Vivo ( Gallus gallus). Nutrients 2022; 14:4679. [PMID: 36364942 PMCID: PMC9655515 DOI: 10.3390/nu14214679] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 10/27/2022] [Accepted: 11/01/2022] [Indexed: 08/17/2023] Open
Abstract
Black corn has been attracting attention to investigate its biological properties due to its anthocyanin composition, mainly cyanidin-3-glucoside. Our study evaluated the effects of black corn extract (BCE) on intestinal morphology, gene expression, and the cecal microbiome. The BCE intra-amniotic administration was evaluated by an animal model in Gallus gallus. The eggs (n = 8 per group) were divided into: (1) no injection; (2) 18 MΩ H2O; (3) 5% black corn extract (BCE); and (4) 0.38% cyanidin-3-glucoside (C3G). A total of 1 mL of each component was injected intra-amniotic on day 17 of incubation. On day 21, the animals were euthanized after hatching, and the duodenum and cecum content were collected. The cecal microbiome changes were attributed to BCE administration, increasing the population of Bifidobacterium and Clostridium, and decreasing E. coli. The BCE did not change the gene expression of intestinal inflammation and functionality. The BCE administration maintained the villi height, Paneth cell number, and goblet cell diameter (in the villi and crypt), similar to the H2O injection but smaller than the C3G. Moreover, a positive correlation was observed between Bifidobacterium, Clostridium, E. coli, and villi GC diameter. The BCE promoted positive changes in the cecum microbiome and maintained intestinal morphology and functionality.
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Affiliation(s)
- Thaisa Agrizzi Verediano
- Nutrition and Health Department, Universidade Federal de Viçosa, Vicosa 36571-000, Minas Gerais, Brazil
| | - Nikita Agarwal
- Department of Food Science, Cornell University, Stocking Hall, Ithaca, NY 14853, USA
| | | | - Nikolai Kolba
- Department of Food Science, Cornell University, Stocking Hall, Ithaca, NY 14853, USA
| | - Mariana Grancieri
- Nutrition and Health Department, Universidade Federal de Viçosa, Vicosa 36571-000, Minas Gerais, Brazil
| | - Maria Cristina Dias Paes
- Empresa Brasileira de Pesquisa e Agropecuária (EMBRAPA), Sete Lagoas 35701-970, Minas Gerais, Brazil
| | - Elad Tako
- Department of Food Science, Cornell University, Stocking Hall, Ithaca, NY 14853, USA
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Wang Y, Li S, Zhu Z, Xu Z, Qi S, Xing S, Yu Y, Wu Q. Transcriptome and chemical analyses revealed the mechanism of flower color formation in Rosa rugosa. Front Plant Sci 2022; 13:1021521. [PMID: 36212326 PMCID: PMC9539313 DOI: 10.3389/fpls.2022.1021521] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 09/09/2022] [Indexed: 06/16/2023]
Abstract
Rosa rugosa is a famous Chinese traditional flower with high ornamental value and well environmental adapt ability. The cultivation of new colorful germplasms to improve monotonous flower color could promote its landscape application. However, the mechanism of flower color formation in R. rugosa remains unclear. In this study, combined analyses of the chemical and transcriptome were performed in the R. rugosa germplasms with representative flower colors. Among the identified anthocyanins, cyanidin 3,5-O-diglucoside (Cy3G5G) and peonidin 3,5-O-diglucoside (Pn3G5G) were the two dominant anthocyanins in the petals of R. rugosa. The sum content of Cy3G5G and Pn3G5G was responsible for the petal color intensity, such as pink or purple, light- or dark- red. The ratio of Cy3G5G to Pn3G5G was contributed to the petal color hue, that is, red or pink/purple. Maintaining both high relative and high absolute content of Cy3G5G may be the precondition for forming red-colored petals in R. rugosa. Cyanidin biosynthesis shunt was the dominant pathway for anthocyanin accumulation in R. rugosa, which may be the key reason for the presence of monotonous petal color in R. rugosa, mainly pink/purple. In the upstream pathway of cyanidin biosynthesis, 35 differentially expressed structural genes encoding 12 enzymes co-expressed to regulate the sum contents of Cy3G5G and Pn3G5G, and then determined the color intensity of petals. RrAOMT, involved in the downstream pathway of cyanidin biosynthesis, regulated the ratio of Cy3G5G to Pn3G5G via methylation and then determined the color hue of petals. It was worth mentioning that significantly higher delphinidin-3,5-O-diglucoside content and RrF3'5'H expression were detected from deep purple-red-flowered 8-16 germplasm with somewhat unique and visible blue hue. Three candidate key transcription factors identified by correlation analysis, RrMYB108, RrC1, and RrMYB114, might play critical roles in the control of petal color by regulating the expression of both RrAOMT and other multiple structural genes. These results provided novel insights into anthocyanin accumulation and flower coloration mechanism in R. rugosa, and the candidate key genes involved in anthocyanin biosynthesis could be valuable resources for the breeding of ornamental plants in future.
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Affiliation(s)
- Yiting Wang
- Shandong Provincial Research Center of Demonstration Engineering Technology for Urban and Rural Landscape, College of Forestry, Shandong agricultural University, Tai’an, China
| | - Shaopeng Li
- School of Landscape Architecture, Beijing Forestry University, Beijing, China
| | - Ziqi Zhu
- Shandong Provincial Research Center of Demonstration Engineering Technology for Urban and Rural Landscape, College of Forestry, Shandong agricultural University, Tai’an, China
| | - Zongda Xu
- Shandong Provincial Research Center of Demonstration Engineering Technology for Urban and Rural Landscape, College of Forestry, Shandong agricultural University, Tai’an, China
| | - Shuai Qi
- Shandong Provincial Research Center of Demonstration Engineering Technology for Urban and Rural Landscape, College of Forestry, Shandong agricultural University, Tai’an, China
| | - Shutang Xing
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, China
| | - Yunyan Yu
- Shandong Provincial Research Center of Demonstration Engineering Technology for Urban and Rural Landscape, College of Forestry, Shandong agricultural University, Tai’an, China
| | - Qikui Wu
- Shandong Provincial Research Center of Demonstration Engineering Technology for Urban and Rural Landscape, College of Forestry, Shandong agricultural University, Tai’an, China
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14
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Morris JB, Tonnis BD, Wang ML, Bhattarai U. Genetic Diversity for Quercetin, Myricetin, Cyanidin, and Delphinidin Concentrations in 38 Blackeye Pea (Vigna unguiculata L. Walp.) Genotypes for Potential Use as a Functional Health Vegetable. J Diet Suppl 2022; 20:673-688. [PMID: 35615864 DOI: 10.1080/19390211.2022.2077881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Blackeye peas (Vigna unguiculata L. Walp.) are mainly used as a vegetable throughout the world, however they may contain significant concentrations of quercetin, myricetin, cyanidin, and delphinidin for potential use as a functional vegetable. Thirty-eight blackeye pea genotypes were selected from the core collection in the USDA, ARS, Plant Genetic Resources Conservation Unit's cold storage at 4 °C during 2016. Information regarding concentrations of quercetin, myricetin, cyanidin, delphindin, and correlations among these as well as additional seed traits including seed coat color, seed pattern color, seed pattern, seed texture, and years in storage would add value to the blackeye pea genotypes for use as a functional vegetable. Using high performance liquid chromatography (HPLC), the red seeded accession originating from Mozambique, PI 367927 produced the highest quercetin (469.53 µg/g) and myricetin (212.23 µg/g) concentrations. The black seeded genotype, PI 353236, originating from India, produced the highest cyanidin (1,388.82 µg/g) concentration. However, PI 353236 and the brown seeded genotype, PI 353352 from India produced the highest concentrations of delphinidin (1,343.27 and 1,353.94 µg/g), respectively. Several correlations were observed and interestingly only delphinidin showed a significant negative correlation (r = -0.293*) with years in cold storage indicating that delphinidin declined in the seeds stored the longest (from 4-45 years) at 4 °C. Principal component analysis (PCA) explained how the flavonols, anthocyanidins, and the additional seed traits contributed to the variation of the blackeye pea genotypes. The cluster analysis showed six clusters representing low to high phytochemical concentrations. The genetic parameters including σ2g, σ2p, GCV, PCV, h2h, and GG indicate that improvement in these phytochemical traits is possible through selection. The genotypic and phenotypic correlations showed that improving one phytochemical significantly improved the other except for cyanidin with delphinidin. These results can be used by scientists to develop blackeye pea cultivars with high flavonol and anthocyanidin concentrations.
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Affiliation(s)
- John Bradley Morris
- Plant Genetic Resources Conservation Unit, United States Department of Agriculture, Agricultural Research Service, Griffin, GA, USA
| | - Brandon D Tonnis
- Plant Genetic Resources Conservation Unit, United States Department of Agriculture, Agricultural Research Service, Griffin, GA, USA
| | - Ming Li Wang
- Plant Genetic Resources Conservation Unit, United States Department of Agriculture, Agricultural Research Service, Griffin, GA, USA
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15
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Tomasello B, Malfa GA, Acquaviva R, La Mantia A, Di Giacomo C. Phytocomplex of a Standardized Extract from Red Orange (Citrus sinensis L. Osbeck) against Photoaging. Cells 2022; 11. [PMID: 35563752 DOI: 10.3390/cells11091447] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 04/11/2022] [Accepted: 04/22/2022] [Indexed: 12/17/2022] Open
Abstract
Excessive exposure to solar radiation is associated with several deleterious effects on human skin. These effects vary from the occasional simple sunburn to conditions resulting from chronic exposure such as skin aging and cancers. Secondary metabolites from the plant kingdom, including phenolic compounds, show relevant photoprotective activities. In this study, we evaluated the potential photoprotective activity of a phytocomplex derived from three varieties of red orange (Citrus sinensis (L.) Osbeck). We used an in vitro model of skin photoaging on two human cell lines, evaluating the protective effects of the phytocomplex in the pathways involved in the response to damage induced by UVA-B. The antioxidant capacity of the extract was determined at the same time as evaluating its influence on the cellular redox state (ROS levels and total thiol groups). In addition, the potential protective action against DNA damage induced by UVA-B and the effects on mRNA and protein expression of collagen, elastin, MMP1, and MMP9 were investigated, including some inflammatory markers (TNF-α, IL-6, and total and phospho NFkB) by ELISA. The obtained results highlight the capacity of the extract to protect cells both from oxidative stress—preserving RSH (p < 0.05) content and reducing ROS (p < 0.01) levels—and from UVA-B-induced DNA damage. Furthermore, the phytocomplex is able to counteract harmful effects through the significant downregulation of proinflammatory markers (p < 0.05) and MMPs (p < 0.05) and by promoting the remodeling of the extracellular matrix through collagen and elastin expression. This allows the conclusion that red orange extract, with its strong antioxidant and photoprotective properties, represents a safe and effective option to prevent photoaging caused by UVA-B exposure.
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16
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Rao MJ, Duan M, Yang M, Fan H, Shen S, Hu L, Wang L. Novel Insights into Anthocyanin Metabolism and Molecular Characterization of Associated Genes in Sugarcane Rinds Using the Metabolome and Transcriptome. Int J Mol Sci 2021; 23:338. [PMID: 35008763 PMCID: PMC8745048 DOI: 10.3390/ijms23010338] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 12/21/2021] [Accepted: 12/24/2021] [Indexed: 12/13/2022] Open
Abstract
Saccharum officinarum (sugarcane) is the fifth major cultivated crop around the world. Sugarcane rind is a promising source for anthocyanin pigments; however, limited information is available on the anthocyanin and its biosynthesis in sugarcane rinds. In this study, we have quantified 49 compounds including 6 flavonoids and 43 anthocyanins in the rind of 6 sugarcane cultivars by using LCMS/MS approach. Thirty of them were quantified for the first time in sugarcane. The 43 anthocyanins included 10 cyanidin (Cya), 11 pelargonidin (Pel), 9 peonidin (Peo), 5 malvidin (Mal), 4 delphinidin (Del), and 4 petunidin (Pet) metabolites. High contents of Cya derivatives were observed in the rind of YT71/210 (dark purple rind), such as cya-3-O-(6-O-malonyl)-glu 1283.3 µg/g and cya-3-O-glu 482.67 µg/g followed by ROC22 (red rind) 821.3 µg/g and 409 µg/g, respectively, whereas the YT93/159 (green rind) showed a minimum level of these compounds. Among six cultivars, ROC22 rind has high levels of Peo derivatives such as peo-3-O-glu (197 µg/g), peo-3-O-(6-O-malonyl)-glu (69 µg/g) and peo-3-O-(6-O-p-coumaryl)-glu (55.17 µg/g). The gene expression analysis revealed that some genes, including a MYB(t) gene, were highly associated with the color phenotype. Thus, we cloned and overexpressed the gene in Arabidopsis and found the pinkish brown color in the hypocotyl of all transgenic lines compared with the wild type. Hence, we have quantified a wide range of anthocyanins in major sugarcane cultivars, reported many new anthocyanins for the first time, and concluded that Cya and Peo derivatives are the major contributing factor of dissimilar colors in sugarcane. The finding and the verification of a novel MYB gene involved in anthocyanin biosynthesis have demonstrated that our study was very valuable for gene discovery and genetic improvement of sugarcane cultivars to harvest high anthocyanin contents.
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Affiliation(s)
- Muhammad Junaid Rao
- Guangxi Key Laboratory of Sugarcane Biology, College of Agriculture, Guangxi University, 100 Daxue Rd., Nanning 530004, China; (M.J.R.); (M.D.); (M.Y.); (H.F.); (S.S.)
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, 100 Daxue Rd., Nanning 530004, China
| | - Mingzheng Duan
- Guangxi Key Laboratory of Sugarcane Biology, College of Agriculture, Guangxi University, 100 Daxue Rd., Nanning 530004, China; (M.J.R.); (M.D.); (M.Y.); (H.F.); (S.S.)
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, 100 Daxue Rd., Nanning 530004, China
| | - Mingchong Yang
- Guangxi Key Laboratory of Sugarcane Biology, College of Agriculture, Guangxi University, 100 Daxue Rd., Nanning 530004, China; (M.J.R.); (M.D.); (M.Y.); (H.F.); (S.S.)
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, 100 Daxue Rd., Nanning 530004, China
| | - Hongzeng Fan
- Guangxi Key Laboratory of Sugarcane Biology, College of Agriculture, Guangxi University, 100 Daxue Rd., Nanning 530004, China; (M.J.R.); (M.D.); (M.Y.); (H.F.); (S.S.)
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, 100 Daxue Rd., Nanning 530004, China
| | - Songhao Shen
- Guangxi Key Laboratory of Sugarcane Biology, College of Agriculture, Guangxi University, 100 Daxue Rd., Nanning 530004, China; (M.J.R.); (M.D.); (M.Y.); (H.F.); (S.S.)
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, 100 Daxue Rd., Nanning 530004, China
| | - Lihua Hu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, 100 Daxue Rd., Nanning 530004, China
| | - Lingqiang Wang
- Guangxi Key Laboratory of Sugarcane Biology, College of Agriculture, Guangxi University, 100 Daxue Rd., Nanning 530004, China; (M.J.R.); (M.D.); (M.Y.); (H.F.); (S.S.)
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, 100 Daxue Rd., Nanning 530004, China
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Ren Z, Raut NA, Lawal TO, Patel SR, Lee SM, Mahady GB. Peonidin-3-O-glucoside and cyanidin increase osteoblast differentiation and reduce RANKL-induced bone resorption in transgenic medaka. Phytother Res 2021; 35:6255-6269. [PMID: 34704297 DOI: 10.1002/ptr.7271] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 12/23/2020] [Accepted: 01/23/2021] [Indexed: 11/07/2022]
Abstract
Experimental and clinical studies suggest a positive impact of anthocyanins on bone health; however, the mechanisms of anthocyanins altering the differentiation and function of osteoblasts and osteoclasts are not fully understood. This work demonstrates that dietary anthocyanins and resveratrol increased proliferation of cultured human hFOB 1.19 osteoblasts. In addition, treatment of serum starvation of hFOB osteoblasts with anthocyanins and resveratrol at 1.0 μg/ml reduced apoptosis, the Bax/Bcl-2 ratio, p53, and HDAC1 expression, but increased SIRT1/3 and PGC1α mRNA expression, suggesting mitochondrial and epigenetic regulation. In Sp7/osterix:mCherry transgenic medaka, peonidin-3-O-glucoside and resveratrol increased osteoblast differentiation and increased the expression of Sp7/osterix. Cyanidin, peonidin-3-O-glucoside, and resveratrol also reduced RANKL-induced ectopic osteoclast formation and bone resorption in col10α1:nlGFP/rankl:HSE:CFP medaka in doses of 1-4 μg/ml. The results indicate that both cyanidin and peonidin-3-O-glucoside have anabolic effects on bone, increasing osteoblast proliferation and differentiation, mitochondrial biogenesis, and by altering the osteoblast epigenome. Cyanidin and peonidin-3-O-glucoside also reduced RANKL-induced bone resorption in a transgenic medaka model of bone resorption. Thus, peonidin-3-O-glucoside and cyanidin appear to both increase bone formation and reduce bone loss, suggesting that they be further investigated as potential treatments for osteoporosis and osteomalacia.
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Affiliation(s)
- Zhitao Ren
- Department of Pharmacy Practice, College of Pharmacy, WHO Collaborating Centre for Traditional Medicine, University of Illinois at Chicago, Chicago, Illinois, USA.,State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Nishikant A Raut
- Raman Fellow, Department of Pharmacy Practice, College of Pharmacy, WHO Collaborating Centre for Traditional Medicine, University of Illinois at Chicago, Chicago, Illinois, USA.,Department of Pharmaceutical Sciences, Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur, India
| | - Temitope O Lawal
- Schlumberger Fellow, Department of Pharmacy Practice, College of Pharmacy, WHO Collaborating Centre for Traditional Medicine, University of Illinois at Chicago, Chicago, Illinois, USA.,Department of Pharmaceutical Microbiology, University of Ibadan, Ibadan, Nigeria
| | - Shital R Patel
- Department of Pharmacy Practice, College of Pharmacy, WHO Collaborating Centre for Traditional Medicine, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Simon M Lee
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Gail B Mahady
- Department of Pharmacy Practice, College of Pharmacy, WHO Collaborating Centre for Traditional Medicine, University of Illinois at Chicago, Chicago, Illinois, USA
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18
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Pahlke G, Ahlberg K, Oertel A, Janson‐Schaffer T, Grabher S, Mock H, Matros A, Marko D. Antioxidant Effects of Elderberry Anthocyanins in Human Colon Carcinoma Cells: A Study on Structure-Activity Relationships. Mol Nutr Food Res 2021; 65:e2100229. [PMID: 34212508 PMCID: PMC8459241 DOI: 10.1002/mnfr.202100229] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 06/09/2021] [Indexed: 12/14/2022]
Abstract
SCOPE Glycosylation is a way to increase structure-stability of anthocyanins, yet compromises their bioactivity. The study investigates the antioxidant activity of purified cyanidin (Cy)-based anthocyanins and respective degradation products in Caco-2 clone C2BBe1 aiming to identify structure-activity relationships. RESULTS AND METHODS Cyanidin 3-O-glucoside (Cy-3-glc) and cyanidin 3-O-sambubioside (Cy-3-sam) proved to be most potent regarding antioxidant properties and protection against hydrogen peroxide (H2 O2 )-induced reactive oxygen species (ROS)-levels measured with the dichloro-fluorescein (DCF) assay. Cyanidin 3-O-sambubioside-5-O-glucoside (Cy-3-sam-5-glc) and cyanidin 3-O-rutinoside (Cy-3-rut) were less efficient and not protective, reflecting potential differences in uptake and/or degradation. Following ranking in antioxidant efficiency is suggested: (concentrations ≤10 × 10-6 M) Cy-3-glc ≥ Cy-3-sam > Cy-3-sam-5-glc ≈ Cy-3-rut ≈ Cy; (concentrations ≥50 × 10-6 M) Cy-3-glc ≈ Cy-3-sam ≥ Cy > Cy-3-sam-5-glc ≈ Cy-3-rut. Cy and protocatechuic acid (PCA) reduced ROS-levels as potent as the mono- and di-glycoside, whereas phloroglucinol aldehyde (PGA) displayed pro-oxidant properties. None of the degradation products protected from oxidative stress. Gene transcription analysis of catalase (CAT), superoxide-dismutase (SOD), glutathione-peroxidase (GPx), heme-oxygenase-1 (HO-1), and glutamate-cysteine-ligase (γGCL) suggest no activation of nuclear factor erythroid 2-related factor 2 (Nrf2). CONCLUSION More complex residues and numbers of sugar moieties appear to be counterproductive for antioxidant activity. Other mechanisms than Nrf2-activation should be considered for protective effects.
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Affiliation(s)
- Gudrun Pahlke
- Department of Food Chemistry and ToxicologyUniversity of ViennaWaehringerstr. 38ViennaA‐1090Austria
| | - Katarina Ahlberg
- Department of Food Chemistry and ToxicologyUniversity of ViennaWaehringerstr. 38ViennaA‐1090Austria
| | - Anne Oertel
- Department of Physiology and Cell BiologyLeibniz Institute of Plant Genetics and Crop Plant Research (IPK‐Gatersleben)Corrensstr. 3GaterslebenD‐06466Germany
- Present address:
University of Art and DesignNeuwerk 7Halle (Saale)D‐06108Germany
| | - Theresa Janson‐Schaffer
- Department of Food Chemistry and ToxicologyUniversity of ViennaWaehringerstr. 38ViennaA‐1090Austria
| | - Stephanie Grabher
- Department of Food Chemistry and ToxicologyUniversity of ViennaWaehringerstr. 38ViennaA‐1090Austria
| | - Hans‐Peter Mock
- Department of Physiology and Cell BiologyLeibniz Institute of Plant Genetics and Crop Plant Research (IPK‐Gatersleben)Corrensstr. 3GaterslebenD‐06466Germany
| | - Andrea Matros
- Department of Physiology and Cell BiologyLeibniz Institute of Plant Genetics and Crop Plant Research (IPK‐Gatersleben)Corrensstr. 3GaterslebenD‐06466Germany
- Present address:
School of AgricultureFood and WineUniversity of AdelaideWaite CampusUrrbraeSA5064Australia
| | - Doris Marko
- Department of Food Chemistry and ToxicologyUniversity of ViennaWaehringerstr. 38ViennaA‐1090Austria
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19
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Abstract
For various reasons, histologists in several parts of the world have tried to replace hematoxylin and eosin with locally available plant dyes of the anthocyanin family. Blue or violet nuclear stains have been created by combining an anthocyanin with iron or aluminum ions at low pH. Obtaining a pink or red cytoplasmic counterstain, however, has not been achieved previously, even with a red solution of anthocyanin, because the chemistry of the colorant does not allow bonding to cytoplasmic materials and collagen. We used two extracts from the petals of common mallow, Malva sylvestris, to create both a blue nuclear stain and a red counterstain. The two extracts contained two chemically distinct types of anthocyanins. The first extract contains vic-hydroxyls capable of complexing aluminum ions; its flavylium core is cationic. The second type lacks vic-hydroxyls on its core structure, but includes pendant glucosides that contain a malonic acid ester with a free carboxyl substituent. The precise identity of the first anthocyanin currently is unknown, but likely is one or more of the common anthocyanins such as cyanidin, delphinidin or petunidin, which complex readily with aluminum. The second anthocyanin is malonated malvidin, which does not complex with aluminum, but is anionic at the pH used here. The overall visual effect of applying the two anthocyanin extracts is remarkably similar to that of hemalum plus eosin.
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Affiliation(s)
- Hayfaa A Alshamar
- Medical Pathological Analyses Department, College of Science, University of Thi Qar, Nasiriyah, Iraq
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20
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Thuy NM, Minh VQ, Ben TC, Thi Nguyen MT, Ha HTN, Tai NV. Identification of Anthocyanin Compounds in Butterfly Pea Flowers ( Clitoria ternatea L.) by Ultra Performance Liquid Chromatography/Ultraviolet Coupled to Mass Spectrometry. Molecules 2021; 26:molecules26154539. [PMID: 34361692 PMCID: PMC8348707 DOI: 10.3390/molecules26154539] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 07/23/2021] [Accepted: 07/25/2021] [Indexed: 12/04/2022] Open
Abstract
Butterfly pea flower have great sensory attraction, but they have not yet been used widely in Vietnam. Extracts of butterfly pea flowers can be used conveniently as a natural blue colorant for food products. In this study, the identification of anthocyanin compounds in butterfly pea flowers was performed by UPLC coupled with a UV and Mass spectrometer instrument. Positive and negative ion electrospray MS/MS chromatograms and spectra of the anthocyanin compounds were determined. By analyzing the chromatograms and spectra for each ion, five anthocyanins were identified in the butterfly pea flower extract; these were delphinidin-3-(6″-p-coumaroyl)-rutinoside, cyanidin 3-(6″-p-coumaroyl)-rutinoside, delphinidin-3-(p-coumaroyl) glucose in both cis- and trans- isomers, cyanidin-3-(p-coumaroyl-glucoside) and delphinidin-3-pyranoside. Additionally, based on their intensity, it was determined that cyanidin-3-(p-coumaroyl-glucoside) was the most abundant anthocyanin, followed by cyanidin 3-(6″-p-coumaroyl)-rutinoside, delphinidin-3-(p-coumaroyl-glucoside), delphinidin-3-(6″-p-coumaroyl)-rutinoside and delphinidin-3-pyranoside. In this study, cyanidin derivatives were discovered in butterfly pea flower extract, where these compounds had not been detected in previous studies.
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Affiliation(s)
- Nguyen Minh Thuy
- Department of Food Technology, College of Agriculture, Can Tho University, Can Tho City 900000, Vietnam; (T.C.B.); (M.T.T.N.); (N.V.T.)
- Correspondence: ; Tel.: +84-918-391-270
| | - Vo Quang Minh
- Department of Land Resources, College of Environment and Natural Resources, Can Tho University, Can Tho City 900000, Vietnam;
| | - Tran Chi Ben
- Department of Food Technology, College of Agriculture, Can Tho University, Can Tho City 900000, Vietnam; (T.C.B.); (M.T.T.N.); (N.V.T.)
| | - My Tuyen Thi Nguyen
- Department of Food Technology, College of Agriculture, Can Tho University, Can Tho City 900000, Vietnam; (T.C.B.); (M.T.T.N.); (N.V.T.)
- Department of Food and Nutrition, Chungnam National University, Daejeon 34134, Korea
| | - Ho Thi Ngan Ha
- Faculty of Agriculture and Natural Resources, An Giang University, Long Xuyen City 90100, Vietnam;
- Vietnam National University Ho Chi Minh City, Ho Chi Minh City 700000, Vietnam
| | - Ngo Van Tai
- Department of Food Technology, College of Agriculture, Can Tho University, Can Tho City 900000, Vietnam; (T.C.B.); (M.T.T.N.); (N.V.T.)
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21
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Straßmann S, Passon M, Schieber A. Chemical Hemisynthesis of Sulfated Cyanidin-3- O-Glucoside and Cyanidin Metabolites. Molecules 2021; 26:molecules26082146. [PMID: 33917913 PMCID: PMC8068276 DOI: 10.3390/molecules26082146] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 03/31/2021] [Accepted: 04/06/2021] [Indexed: 11/16/2022] Open
Abstract
The metabolism of anthocyanins in humans is still not fully understood, which is partly due to the lack of reference compounds. It is known that sulfation is one way of the complex phase II biotransformation mechanism. Therefore, cyanidin-3-O-glucoside and the cyanidin aglycone were chemically converted to their sulfates by reaction with sulfur trioxide-N-triethylamine complex in dimethylformamide. The reaction products were characterized by UHPLC coupled to linear ion trap and IMS-QTOF mass spectrometry. Based on MS data, retention times, and UV-Vis spectra, the compounds could tentatively be assigned to A-, C-, or B-ring sulfates. Analysis of urine samples from two volunteers after ingestion of commercial blackberry nectar demonstrated the presence of two sulfated derivatives of the cyanidin aglycone and one sulfated derivative of the cyanidin-3-O-glucoside. It was found that both the A ring and the B ring are sulfated by human enzymes. This study marks an important step toward a better understanding of anthocyanin metabolism.
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22
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Paulsmeyer M, Juvik J. Functional Characterization of an Anthocyanin Dimalonyltransferase in Maize. Molecules 2021; 26:2020. [PMID: 33916241 DOI: 10.3390/molecules26072020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/20/2021] [Accepted: 03/25/2021] [Indexed: 11/16/2022] Open
Abstract
Anthocyanins are pigments with appealing hues that are currently being used as sources of natural colorants. The interaction of acylation on the stability of anthocyanin molecules has long been known. Maize is an abundant source of malonylglucoside and dimalonylglucoside anthocyanins. The enzyme Aat1 is an anthocyanin acyltransferase known to synthesize the majority of acylated anthocyanins in maize. In this paper, we characterize the substrate specificity and reaction kinetics of Aat1. It was found that Aat1 has anthocyanin 3-O-glucoside dimalonyltransferase activity and is only the second enzyme of this type characterized to this date. Our results indicate that Aat1 can utilize malonyl-CoA; succinyl-CoA and every anthocyanin 3-O-glucoside tested. Results of this study provide insight into the structure-function relations of dimalonyltransferases and give a unique insight into the activity of monocot anthocyanin acyltransferases.
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23
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Straßmann S, Brehmer T, Passon M, Schieber A. Methylation of Cyanidin-3- O-Glucoside with Dimethyl Carbonate. Molecules 2021; 26:1342. [PMID: 33802304 DOI: 10.3390/molecules26051342] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 02/22/2021] [Accepted: 02/24/2021] [Indexed: 12/05/2022] Open
Abstract
The approach presented in this study is the first for the hemisynthesis of methylated anthocyanins. It was possible to obtain cyanidin-3-O-glucoside derivatives with different degrees of methylation. Cautious identification of 4′-, 5-, and 7-OH monomethylated derivatives was also accomplished. The methylation agent used was the “green chemical” dimethyl carbonate (DMC), which is characterized by low human and ecological toxicity. The influence of the temperature, reaction time, and amount of the required diazabicyclo[5.4.0]undec-7-en (DBU) catalyst on the formation of the products was examined. Compared to conventional synthesis methods for methylated flavonoids using DMC and DBU, the conditions identified in this study result in a reduction of reaction time, and an important side reaction, so-called carboxymethylation, was minimized by using higher amounts of catalyst.
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24
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Hong HT, Phan ADT, O'Hare TJ. Temperature and Maturity Stages Affect Anthocyanin Development and Phenolic and Sugar Content of Purple-Pericarp Supersweet Sweetcorn during Storage. J Agric Food Chem 2021; 69:922-931. [PMID: 33448222 DOI: 10.1021/acs.jafc.0c06153] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Purple-pericarp sweetcorn (PPS) is a novel product, requiring both purple pigment development and maintenance of sweetness. Storage period and temperature had a profound impact on total anthocyanin accumulation (TAC) and sugar content. While TAC remained relatively unchanged during 14-day storage at 4 °C, the first recorded observation of continuing accumulation of anthocyanin and phenolic compounds was concurrent with an increase in purple pigment coverage across the surface of the kernel at 23 °C. TAC in PPS significantly increased, doubling after 14 days at 23 °C. Anthocyanin concentration and kernel coverage were also affected by harvest maturity. The results indicated that biosynthesis of anthocyanins is still occurring during postharvest storage of PPS. A significant decline in sugar concentration was also observed during storage with a greater decline at 23 °C. As anthocyanin accumulation and maintaining sweetness are important factors for sweetcorn, identifying storage temperatures that optimize both quality criteria are required.
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Affiliation(s)
- H T Hong
- Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, University of Queensland, Coopers Plains, Queensland 4108, Australia
| | - A D T Phan
- Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, University of Queensland, Coopers Plains, Queensland 4108, Australia
- ARC Training Centre for Uniquely Australian Foods, Queensland Alliance for Agriculture and Food Innovation, University of Queensland, Coopers Plains, Queensland 4108, Australia
| | - T J O'Hare
- Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, University of Queensland, Coopers Plains, Queensland 4108, Australia
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25
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Abstract
We found that the oxidation of cyanidin with hydrogen peroxide, tert-butyl hydroperoxide, 2,2'-azobis(2-methylpropionamidine), 3-morpholinosydnonimine hydrochloride, sodium hypochlorite, Fe3+, and Fe2+ induced the appearance of a new fluorescence band, centered at 525-540 nm when excited at 470-490 nm. The intensity of this fluorescence was related to the oxidant concentration. The same fluorescence was induced by the oxidation of other anthocyanidins, an anthocyanin (cyanidin-3-O-glucoside) as well as anthocyanin-rich red cabbage extract, and blackcurrant and elderberry juices. Peroxidized blood plasma also induced the appearance of cyanidin fluorescence. We also showed that the formation of the fluorescent product of pelargonidin can be observed in a culture of the MRC-5 human fetal lung fibroblast cell line and the DU-145 human prostate carcinoma cell line. Our results suggest that this new anthocyanidin/anthocyanin fluorescence may be an indicator of oxidation, especially of food products, where these compounds are present or added as colorants, and can also be useful to detect oxidation in biomedical experiments.
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Affiliation(s)
- Grzegorz Bartosz
- Department of Bioenergetics, Food Analysis and Microbiology, Institute of Food Technology and Nutrition, College of Natural Sciences, Rzeszow University, 4 Zelwerowicza Street, 35-601 Rzeszow, Poland
| | - Michalina Grzesik-Pietrasiewicz
- Department of Analytical Biochemistry, Institute of Food Technology and Nutrition, College of Natural Sciences, Rzeszow University, 4 Zelwerowicza Street, 35-601 Rzeszow, Poland
| | - Izabela Sadowska-Bartosz
- Department of Analytical Biochemistry, Institute of Food Technology and Nutrition, College of Natural Sciences, Rzeszow University, 4 Zelwerowicza Street, 35-601 Rzeszow, Poland
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26
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Menezes R, Foito A, Jardim C, Costa I, Garcia G, Rosado-Ramos R, Freitag S, Alexander CJ, Outeiro TF, Stewart D, Santos CN. Bioprospection of Natural Sources of Polyphenols with Therapeutic Potential for Redox-Related Diseases. Antioxidants (Basel) 2020; 9:antiox9090789. [PMID: 32858836 PMCID: PMC7576474 DOI: 10.3390/antiox9090789] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 08/14/2020] [Accepted: 08/18/2020] [Indexed: 12/23/2022] Open
Abstract
Plants are a reservoir of high-value molecules with underexplored biomedical applications. With the aim of identifying novel health-promoting attributes in underexplored natural sources, we scrutinized the diversity of (poly)phenols present within the berries of selected germplasm from cultivated, wild, and underutilized Rubus species. Our strategy combined the application of metabolomics, statistical analysis, and evaluation of (poly)phenols' bioactivity using a yeast-based discovery platform. We identified species as sources of (poly)phenols interfering with pathological processes associated with redox-related diseases, particularly, amyotrophic lateral sclerosis, cancer, and inflammation. In silico prediction of putative bioactives suggested cyanidin-hexoside as an anti-inflammatory molecule which was validated in yeast and mammalian cells. Moreover, cellular assays revealed that the cyanidin moiety was responsible for the anti-inflammatory properties of cyanidin-hexoside. Our findings unveiled novel (poly)phenolic bioactivities and illustrated the power of our integrative approach for the identification of dietary (poly)phenols with potential biomedical applications.
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Affiliation(s)
- Regina Menezes
- CEDOC, Chronic Diseases Research Centre, NOVA Medical School/Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Campo dos Mártires da Pátria, 130, 1169-056 Lisboa, Portugal; (R.M.); (R.R.-R.)
- iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2781-901 Oeiras, Portugal; (C.J.); (I.C.); (G.G.)
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Alexandre Foito
- Environmental and Biochemical Science Group, The James Hutton Institute, Dundee DD2 5DA, UK; (A.F.); (S.F.); (D.S.)
| | - Carolina Jardim
- iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2781-901 Oeiras, Portugal; (C.J.); (I.C.); (G.G.)
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Inês Costa
- iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2781-901 Oeiras, Portugal; (C.J.); (I.C.); (G.G.)
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Gonçalo Garcia
- iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2781-901 Oeiras, Portugal; (C.J.); (I.C.); (G.G.)
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Rita Rosado-Ramos
- CEDOC, Chronic Diseases Research Centre, NOVA Medical School/Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Campo dos Mártires da Pátria, 130, 1169-056 Lisboa, Portugal; (R.M.); (R.R.-R.)
- iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2781-901 Oeiras, Portugal; (C.J.); (I.C.); (G.G.)
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Sabine Freitag
- Environmental and Biochemical Science Group, The James Hutton Institute, Dundee DD2 5DA, UK; (A.F.); (S.F.); (D.S.)
| | | | - Tiago Fleming Outeiro
- Department of Experimental Neurodegeneration, Center for Biostructural Imaging of Neurodegeneration, University Medical Center Goettinge, 37073 Göttingen, Germany;
- Max Planck Institute for Experimental Medicine, 37075 Göttingen, Germany
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Framlington Place, Newcastle Upon Tyne NE2 4HH, UK
| | - Derek Stewart
- Environmental and Biochemical Science Group, The James Hutton Institute, Dundee DD2 5DA, UK; (A.F.); (S.F.); (D.S.)
- School of Engineering and Physical Sciences, Institute of Mechanical, Process and Energy Engineering, Heriot-Watt University, Edinburgh EH14 4AS, UK
| | - Cláudia N. Santos
- CEDOC, Chronic Diseases Research Centre, NOVA Medical School/Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Campo dos Mártires da Pátria, 130, 1169-056 Lisboa, Portugal; (R.M.); (R.R.-R.)
- iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2781-901 Oeiras, Portugal; (C.J.); (I.C.); (G.G.)
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
- Correspondence:
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Suantawee T, Thilavech T, Cheng H, Adisakwattana S. Cyanidin Attenuates Methylglyoxal-Induced Oxidative Stress and Apoptosis in INS-1 Pancreatic β-Cells by Increasing Glyoxalase-1 Activity. Nutrients 2020; 12:nu12051319. [PMID: 32384625 PMCID: PMC7284759 DOI: 10.3390/nu12051319] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/28/2020] [Accepted: 05/02/2020] [Indexed: 02/07/2023] Open
Abstract
Recently, the mechanisms responsible for anti-glycation activity of cyanidin and its derivatives on the inhibition of methylglyoxal (MG)-induced protein glycation and advanced glycation-end products (AGEs) as well as oxidative DNA damage were reported. In this study, we investigated the protective effect of cyanidin against MG-induced oxidative stress and apoptosis in rat INS-1 pancreatic β-cells. Exposure of cells to cytotoxic levels of MG (500 µM) for 12 h caused a significant reduction in cell viability. However, the pretreatment of cells with cyanidin alone (6.25–100 μM) for 12 h, or cotreatment of cells with cyanidin (3.13–100 μM) and MG, protected against cell cytotoxicity. In the cotreatment condition, cyanidin (33.3 and 100 μM) also decreased MG-induced apoptosis as determined by caspase-3 activity. Furthermore, INS-1 cells treated with MG increased the generation of reactive oxygen species (ROS) during a 6 h exposure. The MG-induced increase in ROS production was inhibited by cyanidin (33.3 and 100 μM) after 3 h stimulation. Furthermore, MG diminished the activity of glyoxalase 1 (Glo-1) and its gene expression as well as the level of total glutathione. In contrast, cyanidin reversed the inhibitory effect of MG on Glo-1 activity and glutathione levels. Interestingly, cyanidin alone was capable of increasing Glo-1 activity and glutathione levels without affecting Glo-1 mRNA expression. These findings suggest that cyanidin exerts a protective effect against MG-induced oxidative stress and apoptosis in pancreatic β-cells by increasing the activity of Glo-1.
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Affiliation(s)
- Tanyawan Suantawee
- Program in Biomedical Sciences, Graduate School, Chulalongkorn University, Bangkok 10330, Thailand;
- Phytochemical and Functional Food Research Unit for Clinical Nutrition, Department of Nutrition and Dietetics, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Thavaree Thilavech
- Department of Food Chemistry, Faculty of Pharmacy, Mahidol University, Bangkok 10400, Thailand;
| | - Henrique Cheng
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA;
| | - Sirichai Adisakwattana
- Phytochemical and Functional Food Research Unit for Clinical Nutrition, Department of Nutrition and Dietetics, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand
- Correspondence: ; Tel.: +662-218-1099 (ext. 111)
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Kim I, Lee J. Variations in Anthocyanin Profiles and Antioxidant Activity of 12 Genotypes of Mulberry ( Morus spp.) Fruits and Their Changes during Processing. Antioxidants (Basel) 2020; 9:antiox9030242. [PMID: 32192116 PMCID: PMC7139643 DOI: 10.3390/antiox9030242] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/09/2020] [Accepted: 03/14/2020] [Indexed: 11/16/2022] Open
Abstract
Mulberry fruits are known as rich sources of anthocyanins and are consumed in syrup form after the addition of sugar and acid; however, there is little information on the anthocyanin composition and antioxidant activity of mulberries of different cultivars and their changes during processing. To address this, the antioxidant activity and anthocyanin composition of 12 cultivar mulberry fruit cultivars were investigated by high-performance liquid chromatography and ultra-high-performance liquid chromatography coupled with electrospray ionization/quadrupole time-of-flight. Additionally, different quantities of citric acid were used to evaluate antioxidant activities and anthocyanin composition of mulberry syrup. Sixteen anthocyanins were identified in mulberry fruits using accurate mass spectrometry. Several anthocyanins were tentatively identified for the first time in mulberry fruits and include: malvidin hexoside, cyanidin malonyl hexose hexoside, cyanidin pentoside, cyanidin malonyl hexoside, petunidin deoxyhexose hexoside, and cyanidin deoxyhexoside. The major anthocyanin in mulberries was cyanidin-3-O-glucoside, followed by cyanidin-3-O-rutinoside. Morus Alba L. Iksu showed the highest cyanidin-3-O-glucoside content (8.65 mg/g dry weight) among 12 mulberry fruit cultivars. As citric acid levels increased, mulberry syrup showed significantly higher antioxidant activity (p < 0.05).
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Affiliation(s)
| | - Jihyun Lee
- Correspondence: ; Tel.: +82-31-670-3266; Fax: +82-31-675-3108
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29
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Petropoulos SA, Sampaio SL, Gioia FD, Tzortzakis N, Rouphael Y, Kyriacou MC, Ferreira I. Grown to be Blue-Antioxidant Properties and Health Effects of Colored Vegetables. Part I: Root Vegetables. Antioxidants (Basel) 2019; 8:E617. [PMID: 31817206 DOI: 10.3390/antiox8120617] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 11/30/2019] [Accepted: 12/03/2019] [Indexed: 01/03/2023] Open
Abstract
During the last few decades, the food and beverage industry faced increasing demand for the design of new functional food products free of synthetic compounds and artificial additives. Anthocyanins are widely used as natural colorants in various food products to replenish blue color losses during processing and to add blue color to colorless products, while other compounds such as carotenoids and betalains are considered as good sources of other shades. Root vegetables are well known for their broad palette of colors, and some species, such as black carrot and beet root, are already widely used as sources of natural colorants in the food and drug industry. Ongoing research aims at identifying alternative vegetable sources with diverse functional and structural features imparting beneficial effects onto human health. The current review provides a systematic description of colored root vegetables based on their belowground edible parts, and it highlights species and/or cultivars that present atypical colors, especially those containing pigment compounds responsible for hues of blue color. Finally, the main health effects and antioxidant properties associated with the presence of coloring compounds are presented, as well as the effects that processing treatments may have on chemical composition and coloring compounds in particular.
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Abstract
Anthocyanins are among the most interesting and vigorously studied plant compounds, representing a large class of over 700 polyphenolic pigments within the flavonoid family that exist ubiquitously in the human diet. They are "nature's colors," responsible for providing the beautiful red-orange to blue-violet hues present in many leaves, flowers, vegetables, and fruits, especially berries. The beginning of the 21st century has witnessed a renaissance in research activities on anthocyanins in several areas, mainly related to their potential health-promoting properties and their increased use as alternatives to synthetic food colors. There is increasingly convincing scientific evidence that supports both a preventative and therapeutic role of anthocyanins towards certain chronic disease states. Many anthocyanin-based extracts and juice concentrates from crop and/or food processing waste have become commercially available as colorants and/or value-added food ingredients. There is a large and evolving peer-reviewed literature on how anthocyanin chemistry and concentration may affect their coloring properties in food. Equally as important is the food matrix, which can have large impacts on anthocyanin color expression, stability and degradation, particularly regarding the applications of anthocyanins as food colorants and their health-promoting properties. This Special Edition of Foods, titled "Anthocyanins in Foods," presents original research that extends our understanding of these exciting and complex compounds.
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Affiliation(s)
- Taylor C Wallace
- Department of Nutrition and Food Studies, George Mason University, Fairfax, VA 22030, USA.
- Think Healthy Group, Inc., Washington, DC 20001, USA.
| | - M Monica Giusti
- Department of Food Science & Technology, The Ohio State University, 2015 Fyffe Court, Columbus, OH 43210, USA.
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Abstract
The aim of this work was to obtain phase II metabolites of cyanidin-3- O-glucoside and its aglycone using porcine liver enzymes. For this purpose, anthocyanins extracted from blackberry concentrate and containing mostly cyanidin-3- O-glucoside were incubated with the S9, microsomal, and cytosolic fractions of porcine liver. The reactions were targeted to the direction of the respective phase II transformation by the addition of activated cofactors. LC-MS n and LC-IMS-QTOF-MS analyses showed that one methylated, three glucuronidated and three sulfated metabolites of cyanidin-3- O-glucoside were generated. The aglycone, cyanidin, was sulfated and glucuronidated by the liver enzymes. In addition, both were glucuronidated and methylated simultaneously. The detected compounds and the generated data like exact masses, mass spectra, and CCS values may serve as a basis in the search for metabolites formed in vivo. As their effects are largely unexplored, the described synthesis may contribute to a better understanding of the metabolism of anthocyanins.
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Affiliation(s)
- Sarah Schmitt
- Department of Nutritional and Food Sciences, Molecular Food Technology , University of Bonn , Endenicher Allee 19b , 53115 Bonn , Germany
| | - Sebastian Tratzka
- Department of Nutritional and Food Sciences, Molecular Food Technology , University of Bonn , Endenicher Allee 19b , 53115 Bonn , Germany
| | - Andreas Schieber
- Department of Nutritional and Food Sciences, Molecular Food Technology , University of Bonn , Endenicher Allee 19b , 53115 Bonn , Germany
| | - Maike Passon
- Department of Nutritional and Food Sciences, Molecular Food Technology , University of Bonn , Endenicher Allee 19b , 53115 Bonn , Germany
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Takashina Y, Manabe A, Tabuchi Y, Ikari A. Cyanidin Increases the Expression of Mg 2+ Transport Carriers Mediated by the Activation of PPARα in Colonic Epithelial MCE301 Cells. Nutrients 2019; 11:E641. [PMID: 30884817 DOI: 10.3390/nu11030641] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 03/13/2019] [Accepted: 03/13/2019] [Indexed: 01/23/2023] Open
Abstract
Mg2+ deficiency may be involved in lifestyle-related diseases, including hypertension, cardiovascular diseases, and diabetes mellitus. Dietary Mg2+ is absorbed in the intestine mediated through transcellular and paracellular pathways. However, there is little research into what factors upregulate Mg2+ absorption. We searched for food constituents that can increase the expression levels of Mg2+ transport carriers using mouse colonic epithelial MCE301 cells. Cyanidin, an anthocyanidin found in black beans and berries, increased the mRNA levels of Mg2+ transport carriers including transient receptor potential melastatin 6 (TRPM6) channel and cyclin M4 (CNNM4). The cyanidin-induced elevation of Mg2+ transport carriers was blocked by GW6471, a peroxisome proliferator-activated receptor α (PPARα) inhibitor, but not by PPARγ, PPARδ, and protein kinase A inhibitors. Cyanidin-3-glucoside showed similar results to cyanidin. Cyanidin increased the protein levels of TRPM6 and CNNM4, which were distributed in the apical and lateral membranes, respectively. The nuclear localization of PPARα and reporter activities of Mg2+ transport carriers were increased by cyanidin, which were inhibited by GW6471. The cyanidin-induced elevation of reporter activity was suppressed by a mutation in a PPAR-response element. Fluorescence measurements using KMG-20, an Mg2+ indicator, showed that Mg2+ influx and efflux from the cells were enhanced by cyanidin, and which were inhibited by GW6471. Furthermore, cyanidin increased paracellular Mg2+ flux without affecting transepithelial electrical resistance. We suggest that cyanidin increases intestinal Mg2+ absorption mediated by the elevation of TRPM6 and CNNM4 expression, and may constitute a phytochemical that can improve Mg2+ deficiency.
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Sytar O, Bośko P, Živčák M, Brestic M, Smetanska I. Bioactive Phytochemicals and Antioxidant Properties of the Grains and Sprouts of Colored Wheat Genotypes. Molecules 2018; 23:E2282. [PMID: 30200643 PMCID: PMC6225107 DOI: 10.3390/molecules23092282] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 09/03/2018] [Accepted: 09/06/2018] [Indexed: 11/17/2022] Open
Abstract
The grains and sprouts of colored wheat genotypes (having blue, purple and yellow colored grains) contain specific anthocyanidins, such as pelargonidin and cyanidin derivatives, that produce beneficial health effects. The objective of the presented study is to compare the antioxidant capacity and contents of bioactive phytochemicals in grains and sprouts of wheat genotypes that differ in grain color. The methods α, α-diphenyl-β-picrylhydrazyl (DPPH) and 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) scavenging activities, together with spectrophotometrical and high-performance thin-layer chromatography (HPTLC) methods, were used to study the presence of total phenolics, flavonoids, anthocyanins and anthocyanidins (pelargonidin, peonidin, cyanidin, delphinidin) content. It was predicted that the sprouts of all colored wheat genotypes would have significantly higher total flavonoids, total phenolics, anthocyanidin levels and antioxidant activity than the grains. The correlation results between antioxidant activity and contents of bioactive phytochemicals in grains and sprouts of colored wheat genotypes have shown a high correlation for cyanidin and pelargonidin, especially in grains, as well as quercetin in sprouts. It was found that total anthocyanin, quercetin and pelargonidin contents were significantly higher in the sprouts of the purple wheat genotypes than in the blue or yellow wheat genotypes. Delphinidin was detected at a higher level in the grains than in the sprouts of the blue wheat genotypes. Peonidin was present at very low quantities in the grains of all colored wheat genotypes. The sprouts of the purple wheat genotypes, among the colored wheat genotypes, had the highest pelargonidin, cyanidin and quercetin contents and, therefore, can be a promising source for functional food use.
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Affiliation(s)
- Oksana Sytar
- Department of Plant Physiology, Slovak University of Agriculture in Nitra, A. Hlinku 2, 949 76 Nitra, Slovakia.
- Department of Plant Biology, Educational and Scientific Center "Institute of Biology and Medicine", Taras Shevchenko National University of Kyiv, Hlushkova Avenue, 2, 03127 Kyiv, Ukraine.
| | - Paulina Bośko
- Department of Pig Breeding, Animal Nutrition and Food, West Pomeranian University of Technology in Szczecin, Klemensa Janickiego 29, 71-270 Szczecin, Poland.
| | - Marek Živčák
- Department of Plant Physiology, Slovak University of Agriculture in Nitra, A. Hlinku 2, 949 76 Nitra, Slovakia.
| | - Marian Brestic
- Department of Plant Physiology, Slovak University of Agriculture in Nitra, A. Hlinku 2, 949 76 Nitra, Slovakia.
| | - Iryna Smetanska
- Plant Production and Processing, University of Applied Sciences Weihenstephan-Triesdorf, Markgrafenstr 16, 91746 Weidenbach, Germany.
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Thummayot S, Tocharus C, Jumnongprakhon P, Suksamrarn A, Tocharus J. Cyanidin attenuates Aβ 25-35-induced neuroinflammation by suppressing NF-κB activity downstream of TLR4/NOX4 in human neuroblastoma cells. Acta Pharmacol Sin 2018; 39:1439-1452. [PMID: 29671417 DOI: 10.1038/aps.2017.203] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 12/08/2017] [Indexed: 12/21/2022] Open
Abstract
Cyanidin is polyphenolic pigment found in plants. We have previously demonstrated that cyanidin protects nerve cells against Aβ25-35-induced toxicity by decreasing oxidative stress and attenuating apoptosis mediated by both the mitochondrial apoptotic pathway and the ER stress pathway. To further elucidate the molecular mechanisms underlying the neuroprotective effects of cyanidin, we investigated the effects of cyanidin on neuroinflammation mediated by the TLR4/NOX4 pathway in Aβ25-35-treated human neuroblastoma cell line (SK-N-SH). SK-N-SH cells were exposed to Aβ25-35 (10 μmol/L) for 24 h. Pretreatment with cyanidin (20 μmol/L) or NAC (20 μmol/L) strongly inhibited the NF-κB signaling pathway in the cells evidenced by suppressing the degradation of IκBα, translocation of the p65 subunit of NF-κB from the cytoplasm to the nucleus, and thereby reducing the expression of iNOS protein and the production of NO. Furthermore, pretreatment with cyanidin greatly promoted the translocation of the Nrf2 protein from the cytoplasm to the nucleus; upregulating cytoprotective enzymes, including HO-1, NQO-1 and GCLC; and increased the activity of SOD enzymes. Pretreatment with cyanidin also decreased the expression of TLR4, directly improved intracellular ROS levels and regulated the activity of inflammation-related downstream pathways including NO production and SOD activity through TLR4/NOX4 signaling. These results demonstrate that TLR4 is a primary receptor in SK-N-SH cells, by which Aβ25-35 triggers neuroinflammation, and cyanidin attenuates Aβ-induced inflammation and ROS production mediated by the TLR4/NOX4 pathway, suggesting that inhibition of TLR4 by cyanidin could be beneficial in preventing neuronal cell death in the process of Alzheimer's disease.
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Mastantuono T, Di Maro M, Chiurazzi M, Battiloro L, Muscariello E, Nasti G, Starita N, Colantuoni A, Lapi D. Rat Pial Microvascular Changes During Cerebral Blood Flow Decrease and Recovery: Effects of Cyanidin Administration. Front Physiol 2018; 9:540. [PMID: 29867577 PMCID: PMC5963394 DOI: 10.3389/fphys.2018.00540] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 04/26/2018] [Indexed: 11/13/2022] Open
Abstract
The reactive oxygen species (ROS) are known to play a major role in many pathophysiological conditions, such as ischemia and reperfusion injury. The present study was aimed to evaluate the in vivo cyanidin (anthocyanin) effects on damages induced by rat pial microvascular hypoperfusion-reperfusion injury by cerebral blood flow decrease (CBFD) and subsequent cerebral blood flow recovery (CBFR). In particular, the main purpose was to detect changes in ROS production after cyanidin administration. Rat pial microvasculature was investigated using fluorescence microscopy through a cranial window (closed); Strahler's method was utilized to define the geometric features of pial vessels. ROS production was investigated in vivo by 2'-7'-dichlorofluorescein-diacetate assay and neuronal damage was measured on isolated brain sections by 2,3,5-triphenyltetrazolium chloride staining. After 30 min of CBFD, induced by bilateral common carotid artery occlusion, and 60 min of CBFR, rats showed decrease of arteriolar diameter and capillary perfusion; furthermore, increase in microvascular leakage and leukocyte adhesion was observed. Conversely, cyanidin administration induced dose-related arteriolar dilation, reduction in microvascular permeability as well as leukocyte adhesion when compared to animals subjected to restriction of cerebral blood flow; moreover, capillary perfusion was protected. ROS generation increase and marked neuronal damage were detected in animals subjected to CBFD and CBFR. On the other hand, cyanidin was able to reduce ROS generation and neuronal damage. In conclusion, cyanidin treatment showed dose-related protective effects on rat pial microcirculation during CBFD and subsequent CBFR, inducing arteriolar dilation by nitric oxide release and inhibiting ROS formation, consequently preserving the blood brain barrier integrity.
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Affiliation(s)
- Teresa Mastantuono
- Department of Clinical Medicine and Surgery, "Federico II" University Medical School, Naples, Italy
| | - Martina Di Maro
- Department of Clinical Medicine and Surgery, "Federico II" University Medical School, Naples, Italy
| | - Martina Chiurazzi
- Department of Clinical Medicine and Surgery, "Federico II" University Medical School, Naples, Italy
| | - Laura Battiloro
- Department of Clinical Medicine and Surgery, "Federico II" University Medical School, Naples, Italy
| | - Espedita Muscariello
- Department of Clinical Medicine and Surgery, "Federico II" University Medical School, Naples, Italy
| | - Gilda Nasti
- Department of Clinical Medicine and Surgery, "Federico II" University Medical School, Naples, Italy
| | - Noemy Starita
- Molecular Biology and Viral Oncology Unit, Istituto Nazionale Tumori IRCCS - "Fond. G. Pascale", Naples, Italy
| | - Antonio Colantuoni
- Department of Clinical Medicine and Surgery, "Federico II" University Medical School, Naples, Italy
| | - Dominga Lapi
- Department of Clinical Medicine and Surgery, "Federico II" University Medical School, Naples, Italy
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Qian P, Yan LJ, Li YQ, Yang HT, Duan HY, Wu JT, Fan XW, Wang SL. Cyanidin ameliorates cisplatin-induced cardiotoxicity via inhibition of ROS-mediated apoptosis. Exp Ther Med 2017; 15:1959-1965. [PMID: 29434790 PMCID: PMC5776514 DOI: 10.3892/etm.2017.5617] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 08/17/2017] [Indexed: 11/06/2022] Open
Abstract
Oxidative stress and apoptosis serve an essential role in cisplatin-induced cardiotoxicity, which limits its clinical use, and increases the risk of cardiovascular disease. As a natural drug, the antioxidant and antitumor effects of cyanidin have been recognized, but its protective effect on cisplatin-induced cardiomyocyte cytotoxicity remains unclear. H9c2 cells were treated with cisplatin (1–40 µM) in the presence or absence of cyanidin (40–80 µM), subsequently; oxidative stress, apoptosis and mitochondrial function were assessed using several techniques. The results demonstrated that cyanidin was able to dose-dependently reverse cisplatin-induced cell damage and apoptosis, attenuate the accumulation of reactive oxygen species (ROS), and mitochondrial membrane potential depolarization, downregulate the expression of Bcl-2 homologous antagonist/killer, upregulate the expression of apoptosis regulator Bcl-2, and reduce the activation of caspase 3, caspase 9, but not caspase 8. Furthermore, the results revealed that the translocation of apoptosis regulator Bax (Bax) from the cytoplasm to the mitochondrial membrane serves an essential role in cisplatin-induced apoptosis. Cyanidin was able to block the translocation of Bax and reduce the release of cytochrome c from cytoplasm. These data indicate that cyanidin attenuates cisplatin-induced cardiotoxicity by inhibiting ROS-mediated apoptosis, while the mitochondrial and extracellular regulated kinase signaling pathways may also serve important roles.
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Affiliation(s)
- Peng Qian
- Department of Cardiology, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China
| | - Li-Jie Yan
- Department of Cardiology, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China
| | - Yong-Qiang Li
- Department of Cardiology, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China
| | - Hai-Tao Yang
- Department of Cardiology, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China
| | - Hong-Yan Duan
- Department of Cardiology, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China
| | - Jin-Tao Wu
- Department of Cardiology, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China
| | - Xian-Wei Fan
- Department of Cardiology, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China
| | - Shan-Ling Wang
- Department of Cardiology, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China
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Suantawee T, Elazab ST, Hsu WH, Yao S, Cheng H, Adisakwattana S. Cyanidin Stimulates Insulin Secretion and Pancreatic β-Cell Gene Expression through Activation of l-type Voltage-Dependent Ca 2+ Channels. Nutrients 2017; 9:E814. [PMID: 28788070 DOI: 10.3390/nu9080814] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 07/25/2017] [Accepted: 07/26/2017] [Indexed: 12/11/2022] Open
Abstract
Cyanidin is a natural anthocyanidin present in fruits and vegetables with anti-diabetic properties including stimulation of insulin secretion. However, its mechanism of action remains unknown. In this study, we elucidated the mechanisms of cyanidin for stimulatory insulin secretion from pancreatic β-cells. Rat pancreatic β-cells INS-1 were used to investigate the effects of cyanidin on insulin secretion, intracellular Ca2+ signaling, and gene expression. We detected the presence of cyanidin in the intracellular space of β-cells. Cyanidin stimulated insulin secretion and increased intracellular Ca2+ signals in a concentration-dependent manner. The Ca2+ signals were abolished by nimodipine, an l-type voltage-dependent Ca2+ channel (VDCC) blocker or under extracellular Ca2+ free conditions. Stimulation of cells with cyanidin activated currents typical for VDCCs and up-regulated the expression of glucose transporter 2 (GLUT2), Kir6.2, and Cav1.2 genes. Our findings indicate that cyanidin diffuses across the plasma membrane, leading to activation of l-type VDCCs. The increase in intracellular Ca2+ stimulated insulin secretion and the expression of genes involved in this process. These findings suggest that cyanidin could be used as a promising agent to stimulate insulin secretion.
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Isaak CK, Petkau JC, Blewett H, O K, Siow YL. Lingonberry anthocyanins protect cardiac cells from oxidative-stress-induced apoptosis. Can J Physiol Pharmacol 2017; 95:904-910. [PMID: 28384410 DOI: 10.1139/cjpp-2016-0667] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Lingonberry grown in northern Manitoba, Canada, contains exceptionally high levels of anthocyanins and other polyphenols. Previous studies from our lab have shown that lingonberry anthocyanins can protect H9c2 cells from ischemia-reperfusion injury and anthocyanin-rich diets have been shown to be associated with decreased cardiovascular disease and mortality. Oxidative stress can impair function and trigger apoptosis in cardiomyocytes. This study investigated the protective effects of physiologically relevant doses of lingonberry extracts and pure anthocyanins against hydrogen-peroxide-induced cell death. Apoptosis and necrosis were detected in H9c2 cells after hydrogen peroxide treatment via flow cytometry using FLICA 660 caspase 3/7 combined with YO-PRO-1 and then confirmed with Hoechst staining and fluorescence microscopy. Each of the 3 major anthocyanins found in lingonberry (cyanidin-3-galactoside, cyanidin-3-glucoside, and cyanidin-3-arabinoside) was protective against hydrogen-peroxide-induced apoptosis in H9c2 cells at 10 ng·mL-1 (20 nmol·L-1) and restored the number of viable cells to match the control group. A combination of the 3 anthocyanins was also protective and a lingonberry extract tested at 3 concentrations produced a dose-dependent protective effect. Lingonberry anthocyanins protected cardiac cells from oxidative-stress-induced apoptosis and may have cardioprotective effects as a dietary modification.
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Affiliation(s)
- Cara K Isaak
- a Agriculture and Agri-Food Canada, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada.,b Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada.,c Department of Physiology & Pathophysiology, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
| | - Jay C Petkau
- a Agriculture and Agri-Food Canada, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada.,b Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada
| | - Heather Blewett
- a Agriculture and Agri-Food Canada, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada.,b Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada.,c Department of Physiology & Pathophysiology, University of Manitoba, Winnipeg, MB R3E 0J9, Canada.,d Department of Human Nutritional Science, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Karmin O
- b Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada.,c Department of Physiology & Pathophysiology, University of Manitoba, Winnipeg, MB R3E 0J9, Canada.,e Department of Animal Science, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Yaw L Siow
- a Agriculture and Agri-Food Canada, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada.,b Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada.,c Department of Physiology & Pathophysiology, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
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De Taeye C, Caullet G, Eyamo Evina VJ, Collin S. Pro cyanidin A2 and Its Degradation Products in Raw, Fermented, and Roasted Cocoa. J Agric Food Chem 2017; 65:1715-1723. [PMID: 28207258 DOI: 10.1021/acs.jafc.6b05262] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Cocoa is known as an important source of flavan-3-ols, but their fate "from the bean to the bar" is not yet clear. Here, procyanidin A2 found in native cocoa beans (9-13 mg/kg) appeared partially epimerized into A2E1 through fermentation, whereas a second epimer (A2E2) emerged after roasting. At m/z 575, dehydrodiepicatechin A was revealed to be the major HPLC peak before fermentation, whereas F1, a marker of well-conducted fermentations, becomes the most intense after roasting. RP-HPLC-ESI(-)-HRMS/MS analysis performed on a procyanidin A2 model medium after 12 h at 90 °C revealed many more degradation products than those identified in fermented cocoa, including the last epimer of A2, A2 open structure intermediates (m/z 577), and oxidized A-type dimers (m/z 573).
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Affiliation(s)
- Cédric De Taeye
- Unité de Brasserie et des Industries Alimentaires, Earth and Life Institute, ELIM, Faculté des Bioingénieurs, Université catholique de Louvain , Croix du Sud, 2 bte L07.05.07, B-1348 Louvain-la-Neuve, Belgium
| | - Gilles Caullet
- Unité de Brasserie et des Industries Alimentaires, Earth and Life Institute, ELIM, Faculté des Bioingénieurs, Université catholique de Louvain , Croix du Sud, 2 bte L07.05.07, B-1348 Louvain-la-Neuve, Belgium
| | - Victor Jos Eyamo Evina
- Unité de Brasserie et des Industries Alimentaires, Earth and Life Institute, ELIM, Faculté des Bioingénieurs, Université catholique de Louvain , Croix du Sud, 2 bte L07.05.07, B-1348 Louvain-la-Neuve, Belgium
| | - Sonia Collin
- Unité de Brasserie et des Industries Alimentaires, Earth and Life Institute, ELIM, Faculté des Bioingénieurs, Université catholique de Louvain , Croix du Sud, 2 bte L07.05.07, B-1348 Louvain-la-Neuve, Belgium
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Olivas-Aguirre FJ, Rodrigo-García J, Martínez-Ruiz NDR, Cárdenas-Robles AI, Mendoza-Díaz SO, Álvarez-Parrilla E, González-Aguilar GA, de la Rosa LA, Ramos-Jiménez A, Wall-Medrano A. Cyanidin-3-O-glucoside: Physical-Chemistry, Foodomics and Health Effects. Molecules 2016; 21:molecules21091264. [PMID: 27657039 PMCID: PMC6273591 DOI: 10.3390/molecules21091264] [Citation(s) in RCA: 159] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 09/09/2016] [Accepted: 09/13/2016] [Indexed: 12/31/2022] Open
Abstract
Anthocyanins (ACNs) are plant secondary metabolites from the flavonoid family. Red to blue fruits are major dietary sources of ACNs (up to 1 g/100 g FW), being cyanidin-3-O-glucoside (Cy3G) one of the most widely distributed. Cy3G confers a red hue to fruits, but its content in raspberries and strawberries is low. It has a good radical scavenging capacity (RSC) against superoxide but not hydroxyl radicals, and its oxidative potential is pH-dependent (58 mV/pH unit). After intake, Cy3G can be metabolized (phases I, II) by oral epithelial cells, absorbed by the gastric epithelium (1%-10%) and it is gut-transformed (phase II & microbial metabolism), reaching the bloodstream (<1%) and urine (about 0.02%) in low amounts. In humans and Caco-2 cells, Cy3G's major metabolites are protocatechuic acid and phloroglucinaldehyde which are also subjected to entero-hepatic recycling, although caffeic acid and peonidin-3-glucoside seem to be strictly produced in the large bowel and renal tissues. Solid evidence supports Cy3G's bioactivity as DNA-RSC, gastro protective, anti-inflammatory, anti-thrombotic chemo-preventive and as an epigenetic factor, exerting protection against Helicobacter pylori infection, age-related diseases, type 2 diabetes, cardiovascular disease, metabolic syndrome and oral cancer. Most relevant mechanisms include RSC, epigenetic action, competitive protein-binding and enzyme inhibition. These and other novel aspects on Cy3G's physical-chemistry, foodomics, and health effects are discussed.
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Affiliation(s)
- Francisco J Olivas-Aguirre
- Instituto de Ciencias Biomédicas, Departamento de Ciencias Químico-Biológicas, Universidad Autónoma de Ciudad Juárez, Anillo Envolvente del PRONAF y Estocolmo s/n, Ciudad Juárez 32310, Chihuahua, Mexico.
| | - Joaquín Rodrigo-García
- Instituto de Ciencias Biomédicas, Departamento de Ciencias Químico-Biológicas, Universidad Autónoma de Ciudad Juárez, Anillo Envolvente del PRONAF y Estocolmo s/n, Ciudad Juárez 32310, Chihuahua, Mexico.
| | - Nina Del R Martínez-Ruiz
- Instituto de Ciencias Biomédicas, Departamento de Ciencias Químico-Biológicas, Universidad Autónoma de Ciudad Juárez, Anillo Envolvente del PRONAF y Estocolmo s/n, Ciudad Juárez 32310, Chihuahua, Mexico.
| | - Arely I Cárdenas-Robles
- Departamento de Investigación y Posgrado en Alimentos, Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas s/n, Querétaro 76010, Querétaro, Mexico.
| | - Sandra O Mendoza-Díaz
- Departamento de Investigación y Posgrado en Alimentos, Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas s/n, Querétaro 76010, Querétaro, Mexico.
| | - Emilio Álvarez-Parrilla
- Instituto de Ciencias Biomédicas, Departamento de Ciencias Químico-Biológicas, Universidad Autónoma de Ciudad Juárez, Anillo Envolvente del PRONAF y Estocolmo s/n, Ciudad Juárez 32310, Chihuahua, Mexico.
| | - Gustavo A González-Aguilar
- Coordinación de Tecnología de Alimentos de Origen Vegetal, Centro de Investigación en Alimentación y Desarrollo, AC. Carretera a la Victoria km. 0.6, AP 1735, Hermosillo 83000, Sonora, Mexico.
| | - Laura A de la Rosa
- Instituto de Ciencias Biomédicas, Departamento de Ciencias Químico-Biológicas, Universidad Autónoma de Ciudad Juárez, Anillo Envolvente del PRONAF y Estocolmo s/n, Ciudad Juárez 32310, Chihuahua, Mexico.
| | - Arnulfo Ramos-Jiménez
- Instituto de Ciencias Biomédicas, Departamento de Ciencias Químico-Biológicas, Universidad Autónoma de Ciudad Juárez, Anillo Envolvente del PRONAF y Estocolmo s/n, Ciudad Juárez 32310, Chihuahua, Mexico.
| | - Abraham Wall-Medrano
- Instituto de Ciencias Biomédicas, Departamento de Ciencias Químico-Biológicas, Universidad Autónoma de Ciudad Juárez, Anillo Envolvente del PRONAF y Estocolmo s/n, Ciudad Juárez 32310, Chihuahua, Mexico.
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Jin X, Huang H, Wang L, Sun Y, Dai S. Transcriptomics and Metabolite Analysis Reveals the Molecular Mechanism of Anthocyanin Biosynthesis Branch Pathway in Different Senecio cruentus Cultivars. Front Plant Sci 2016; 7:1307. [PMID: 27656188 PMCID: PMC5012328 DOI: 10.3389/fpls.2016.01307] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 08/15/2016] [Indexed: 05/23/2023]
Abstract
The cyanidin (Cy), pelargonidin (Pg), and delphinidin (Dp) pathways are the three major branching anthocyanin biosynthesis pathways that regulate flavonoid metabolic flux and are responsible for red, orange, and blue flower colors, respectively. Different species have evolved to develop multiple regulation mechanisms that form the branched pathways. In the current study, five Senecio cruentus cultivars with different colors were investigated. We found that the white and yellow cultivars do not accumulate anthocyanin and that the blue, pink, and carmine cultivars mainly accumulate Dp, Pg, and Cy in differing densities. Subsequent transcriptome analysis determined that there were 43 unigenes encoding anthocyanin biosynthesis genes in the blue cultivar. We also combined chemical and transcriptomic analyses to investigate the major metabolic pathways that are related to the observed differences in flower pigmentation in the series of S. cruentus. The results showed that mutations of the ScbHLH17 and ScCHI1/2 coding regions abolish anthocyanin formation in the white and the yellow cultivars; the competition of the ScF3'H1, ScF3'5'H, and ScDFR1/2 genes for naringenin determines the differences in branching metabolic flux of the Cy, Dp, and Pg pathways. Our findings provide new insights into the regulation of anthocyanin branching and also supplement gene resources (including ScF3'5 'H, ScF3'H, and ScDFRs) for flower color modification of ornamentals.
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Affiliation(s)
- Xuehua Jin
- College of Landscape Architecture, Beijing Forestry UniversityBeijing, China
- Faculty of Architecture and City Planning, Kunming University of Science and TechnologyKunming, China
| | - He Huang
- College of Landscape Architecture, Beijing Forestry UniversityBeijing, China
| | - Lu Wang
- College of Landscape Architecture, Beijing Forestry UniversityBeijing, China
| | - Yi Sun
- College of Landscape Architecture, Beijing Forestry UniversityBeijing, China
| | - Silan Dai
- College of Landscape Architecture, Beijing Forestry UniversityBeijing, China
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42
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Wang Y, Fu XT, Li DW, Wang K, Wang XZ, Li Y, Sun BL, Yang XY, Zheng ZC, Cho NC. Cyanidin suppresses amyloid beta-induced neurotoxicity by inhibiting reactive oxygen species-mediated DNA damage and apoptosis in PC12 cells. Neural Regen Res 2016; 11:795-800. [PMID: 27335564 PMCID: PMC4904471 DOI: 10.4103/1673-5374.182707] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Amyloid beta (Aβ)-induced oxidative stress is a major pathologic hallmark of Alzheimer's disease. Cyanidin, a natural flavonoid compound, is neuroprotective against oxidative damage-mediated degeneration. However, its molecular mechanism remains unclear. Here, we investigated the effects of cyanidin pretreatment against Aβ-induced neurotoxicity in PC12 cells, and explored the underlying mechanisms. Cyanidin pretreatment significantly attenuated Aβ-induced cell mortality and morphological changes in PC12 cells. Mechanistically, cyanidin effectively blocked apoptosis induced by Aβ, by restoring the mitochondrial membrane potential via upregulation of Bcl-2 protein expression. Moreover, cyanidin markedly protected PC12 cells from Aβ-induced DNA damage by blocking reactive oxide species and superoxide accumulation. These results provide evidence that cyanidin suppresses Aβ-induced cytotoxicity, by preventing oxidative damage mediated by reactive oxide species, which in turn inhibits mitochondrial apoptosis. Our study demonstrates the therapeutic potential of cyanidin in the prevention of oxidative stress-mediated Aβ neurotoxicity.
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Affiliation(s)
- Yi Wang
- Department of Ophthalmology, Chonbuk National University Medical College, Jeonju-si, Jeollabuk-do, Republic of Korea; Key Lab of Cerebral Microcirculation in Universities of Shandong, Taishan Medical University, Taian, Shandong Province, China
| | - Xiao-Ting Fu
- Key Lab of Cerebral Microcirculation in Universities of Shandong, Taishan Medical University, Taian, Shandong Province, China
| | - Da-Wei Li
- Key Lab of Cerebral Microcirculation in Universities of Shandong, Taishan Medical University, Taian, Shandong Province, China
| | - Kun Wang
- Key Lab of Cerebral Microcirculation in Universities of Shandong, Taishan Medical University, Taian, Shandong Province, China
| | - Xin-Zhi Wang
- Key Lab of Cerebral Microcirculation in Universities of Shandong, Taishan Medical University, Taian, Shandong Province, China
| | - Yuan Li
- Key Lab of Cerebral Microcirculation in Universities of Shandong, Taishan Medical University, Taian, Shandong Province, China
| | - Bao-Liang Sun
- Key Lab of Cerebral Microcirculation in Universities of Shandong, Taishan Medical University, Taian, Shandong Province, China
| | - Xiao-Yi Yang
- Key Lab of Cerebral Microcirculation in Universities of Shandong, Taishan Medical University, Taian, Shandong Province, China
| | - Zun-Cheng Zheng
- Department of Rehabilitation, Taian Central Hospital, Taian, Shandong Province, China
| | - Nam Chun Cho
- Department of Ophthalmology, Chonbuk National University Medical College, Jeonju-si, Jeollabuk-do, Republic of Korea
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43
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Tian J, Peng Z, Zhang J, Song T, Wan H, Zhang M, Yao Y. McMYB10 regulates coloration via activating McF3'H and later structural genes in ever-red leaf crabapple. Plant Biotechnol J 2015; 13:948-61. [PMID: 25641214 DOI: 10.1111/pbi.12331] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 11/06/2014] [Accepted: 12/12/2014] [Indexed: 05/19/2023]
Abstract
The ever-red leaf trait, which is important for breeding ornamental and higher anthocyanin plants, rarely appears in Malus families, but little is known about the regulation of anthocyanin biosynthesis involved in the red leaves. In our study, HPLC analysis showed that the anthocyanin concentration in ever-red leaves, especially cyanidin, was significantly higher than that in evergreen leaves. The transcript level of McMYB10 was significantly correlated with anthocyanin synthesis between the 'Royalty' and evergreen leaf 'Flame' cultivars during leaf development. We also found the ever-red leaf colour cultivar 'Royalty' contained the known R6 : McMYB10 sequence, but was not in the evergreen leaf colour cultivar 'Flame', which have been reported in apple fruit. The distinction in promoter region maybe is the main reason why higher expression level of McMYB10 in red foliage crabapple cultivar. Furthermore, McMYB10 promoted anthocyanin biosynthesis in crabapple leaves and callus at low temperatures and during long-day treatments. Both heterologous expression in tobacco (Nicotiana tabacum) and Arabidopsis pap1 mutant, and homologous expression in crabapple and apple suggested that McMYB10 could promote anthocyanins synthesis and enhanced anthocyanin accumulation in plants. Interestingly, electrophoretic mobility shift assays, coupled with yeast one-hybrid analysis, revealed that McMYB10 positively regulates McF3'H via directly binding to AACCTAAC and TATCCAACC motifs in the promoter. To sum up, our results demonstrated that McMYB10 plays an important role in ever-red leaf coloration, by positively regulating McF3'H in crabapple. Therefore, our work provides new perspectives for ornamental fruit tree breeding.
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Affiliation(s)
- Ji Tian
- Beijing Key Laboratory for Agricultural Application and New Technique, Department of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Zhen Peng
- Beijing Key Laboratory for Agricultural Application and New Technique, Department of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Jie Zhang
- Beijing Key Laboratory for Agricultural Application and New Technique, Department of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Tingting Song
- Beijing Key Laboratory for Agricultural Application and New Technique, Department of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Huihua Wan
- Beijing Key Laboratory for Agricultural Application and New Technique, Department of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Meiling Zhang
- Beijing Key Laboratory for Agricultural Application and New Technique, Department of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Yuncong Yao
- Beijing Key Laboratory for Agricultural Application and New Technique, Department of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
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44
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Iliopoulou I, Thaeron D, Baker A, Jones A, Robertson N. Analysis of the Thermal Degradation of the Individual Anthocyanin Compounds of Black Carrot (Daucus carota L.): A New Approach Using High-Resolution Proton Nuclear Magnetic Resonance Spectroscopy. J Agric Food Chem 2015; 63:7066-7073. [PMID: 26160425 DOI: 10.1021/acs.jafc.5b02543] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The black carrot dye is a mixture of cyanidin molecules, the nuclear magnetic resonance (NMR) spectrum of which shows a highly overlapped aromatic region. In this study, the (1)H NMR (800 MHz) aromatic chemical shifts of the mixture were fully assigned by overlaying them with the characterized (1)H NMR chemical shifts of the separated compounds. The latter were isolated using reverse-phase high-performance liquid chromatography (RP-HPLC), and their chemical shifts were identified using (1)H and two-dimensional (2D) correlation spectroscopy (COSY) NMR spectroscopy. The stability of the black carrot mixture to heat exposure was investigated at pH 3.6, 6.8, and 8.0 by heat-treating aqueous solutions at 100 °C and the powdered material at 180 °C. From integration of high-resolution (1)H NMR spectra, it was possible to follow the relative degradation of each compound, offering advantages over the commonly used ultraviolet/visible (UV/vis) and HPLC approaches. UV/vis spectroscopy and CIE color measurements were used to determine thermally induced color changes, under normal cooking conditions.
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Affiliation(s)
- Ioanna Iliopoulou
- †EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, United Kingdom
| | | | - Ashley Baker
- ‡Macphie of Glenbervie, Stonehaven AB39 3YG, United Kingdom
| | - Anita Jones
- †EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, United Kingdom
| | - Neil Robertson
- †EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, United Kingdom
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45
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Kim RJ, Hah YS, Kang JR, Park HB. Antioxidant's cytoprotective effects on rotator cuff tenofibroblasts exposed to aminoamide local anesthetics. J Orthop Res 2015; 33:1001-7. [PMID: 25639557 DOI: 10.1002/jor.22814] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 12/19/2014] [Indexed: 02/04/2023]
Abstract
Local anesthetics (LA) are among the drugs most frequently used for musculoskeletal problems, in procedures ranging from diagnosis to postoperative pain control. The cytotoxicity of LA is an emerging area of concern. The purpose of this study was to determine whether cyanidin, an antioxidant, exerts cytoprotective effects against tenofibroblast death induced by LA. Primary cultured human rotator cuff tenofibroblasts were used to evaluate the cytotoxicity of these LA: Ropivacaine (0.075%), Bupivacaine (0.05%), and Lidocaine (0.2%). The effects of cyanidin (100 μg/ml) on the cytotoxicity induced by these LA were investigated. Cell viability, ROS production, caspase-3/7 activity, and expressions of phospho-extracellular signal-regulated kinases (ERK), phospho-p38, phospho-c-Jun N-terminal kinase (JNK), and cleaved PARP-1 were evaluated. Exposure to LA significantly induced cell death (p < 0.001), ROS production (p ≤ 0.04), the activation of caspase-3/7 (p < 0.001), and the increased expressions of phospho-ERK, phospho-p38, phospho-JNK, and cleaved PARP-1. These LA-induced cytotoxic effects were reduced by cyanidin. These data indicate that cyanidin, an antioxidant, has cytoprotective effects against LA-induced cytotoxicity to rotator cuff tenofibroblasts.
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Affiliation(s)
- Ra Jeong Kim
- Department of Convergence Medical Science, Gyeongsang National University, Jinju, Korea
| | - Young-Sool Hah
- Biomedical Research Institute, Gyeongsang National University Hospital, Jinju, Korea
| | | | - Hyung Bin Park
- Department of Orthopaedic Surgery and Institute of Health Sciences, School of Medicine and Hospital, Gyeongsang National University, Jinju, Korea
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46
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Jo YH, Park HC, Choi S, Kim S, Bao C, Kim HW, Choi HK, Lee HJ, Auh JH. Metabolomic Analysis Reveals Cyanidins in Black Raspberry as Candidates for Suppression of Lipopolysaccharide-Induced Inflammation in Murine Macrophages. J Agric Food Chem 2015; 63:5449-5458. [PMID: 26023864 DOI: 10.1021/acs.jafc.5b00560] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The extracts produced by multisolvent extraction and subfractionation with preparative liquid chromatography of black raspberry (Rubus coreanus Miquel) cultivated in Gochang, South Korea, were tested for their anti-inflammatory effects. The metabolomic profiling and analysis by orthogonal partial least-squares discriminant analysis (OLPS-DA) suggested that cyanidin, cyanidin-3-glucoside (C3G), and cyanidin-3-rutinoside (C3R) were key components for the anti-inflammatory responses in the most active fraction BF3-1, where they were present at 0.44, 1.26, and 0.56 μg/mg of BF3-1, respectively. Both BF3-1 and mixture of these cyanidins at the same ratio reduced lipopolysaccharide (LPS)-induced protein level of iNOS expression and suppressed mRNA and protein expressions of tumor necrosis factor (TNF)-α, interleukin (IL)-6, and IL-1β through inhibiting the phosphorylation of mitogen-activated protein kinases (MAPKs) and STAT3 in murine macrophage RAW264.7 cells. Overall, the results suggested that co-administration of cyanidin, C3G, and C3R is more effective than that of cyanidin alone and that the coexistence of these anthocyanin components in black raspberry plays a vital role in regulating LPS-induced inflammation even at submicromolar concentrations, making it possible to explain the health beneficial activity of its extracts.
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Affiliation(s)
- Young-Hee Jo
- †Department of Food Science and Technology, Chung-Ang University, Anseong 456-756, South Korea
| | - Hyun-Chang Park
- †Department of Food Science and Technology, Chung-Ang University, Anseong 456-756, South Korea
| | - Seulgi Choi
- †Department of Food Science and Technology, Chung-Ang University, Anseong 456-756, South Korea
| | - Sugyeong Kim
- †Department of Food Science and Technology, Chung-Ang University, Anseong 456-756, South Korea
| | - Cheng Bao
- †Department of Food Science and Technology, Chung-Ang University, Anseong 456-756, South Korea
| | - Hyung Woo Kim
- †Department of Food Science and Technology, Chung-Ang University, Anseong 456-756, South Korea
| | - Hyung-Kyoon Choi
- ‡College of Pharmacy, Chung-Ang University, Seoul 156-756, South Korea
| | - Hong Jin Lee
- †Department of Food Science and Technology, Chung-Ang University, Anseong 456-756, South Korea
| | - Joong-Hyuck Auh
- †Department of Food Science and Technology, Chung-Ang University, Anseong 456-756, South Korea
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47
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Vidović M, Morina F, Milić S, Zechmann B, Albert A, Winkler JB, Veljović Jovanović S. Ultraviolet-B component of sunlight stimulates photosynthesis and flavonoid accumulation in variegated Plectranthus coleoides leaves depending on background light. Plant Cell Environ 2015; 38:968-79. [PMID: 25311561 DOI: 10.1111/pce.12471] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2013] [Revised: 09/26/2014] [Accepted: 10/06/2014] [Indexed: 05/07/2023]
Abstract
We used variegated Plectranthus coleoides as a model plant with the aim of clarifying whether the effects of realistic ultraviolet-B (UV-B) doses on phenolic metabolism in leaves are mediated by photosynthesis. Plants were exposed to UV-B radiation (0.90 W m(-2) ) combined with two photosynthetically active radiation (PAR) intensities [395 and 1350 μmol m(-2) s(-1) , low light (LL) and high light (HL)] for 9 d in sun simulators. Our study indicates that UV-B component of sunlight stimulates CO2 assimilation and stomatal conductance, depending on background light. UV-B-specific induction of apigenin and cyanidin glycosides was observed in both green and white tissues. However, all the other phenolic subclasses were up to four times more abundant in green leaf tissue. Caffeic and rosmarinic acids, catechin and epicatechin, which are endogenous peroxidase substrates, were depleted at HL in green tissue. This was correlated with increased peroxidase and ascorbate peroxidase activities and increased ascorbate content. The UV-B supplement to HL attenuated antioxidative metabolism and partly recovered the phenolic pool indicating stimulation of the phenylpropanoid pathway. In summary, we propose that ortho-dihydroxy phenolics are involved in antioxidative defence in chlorophyllous tissue upon light excess, while apigenin and cyanidin in white tissue have preferentially UV-screening function.
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Affiliation(s)
- Marija Vidović
- Institute for Multidisciplinary Research, University of Belgrade, Belgrade, 11000, Serbia
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48
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Edwards M, Czank C, Woodward GM, Cassidy A, Kay CD. Phenolic metabolites of anthocyanins modulate mechanisms of endothelial function. J Agric Food Chem 2015; 63:2423-2431. [PMID: 25686009 DOI: 10.1021/jf5041993] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Anthocyanins are reported to have vascular bioactivity, however their mechanisms of action are largely unknown. Evidence suggests that anthocyanins modulate endothelial function, potentially by increasing nitric oxide (NO) synthesis, or enhancing NO bioavailability. This study compared the activity of cyanidin-3-glucoside, its degradation product protocatechuic acid, and phase II metabolite, vanillic acid. Production of NO and superoxide and expression of endothelial NO synthase (eNOS), NADPH oxidase (NOX), and heme oxygenase-1 (HO-1) were established in human vascular cell models. Nitric oxide levels were not modulated by the treatments, although eNOS was upregulated by cyanidin-3-glucoside, and superoxide production was decreased by both phenolic acids. Vanillic acid upregulated p22(phox) mRNA but did not alter NOX protein expression, although trends were observed for p47(phox) downregulation and HO-1 upregulation. Anthocyanin metabolites may therefore modulate vascular reactivity by inducing HO-1 and modulating NOX activity, resulting in reduced superoxide production and improved NO bioavailability.
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Affiliation(s)
- Michael Edwards
- Department of Nutrition, Norwich Medical School, University of East Anglia , Norwich NR4 7TJ, United Kingdom
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49
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Abstract
The interaction of the cyanidin, pelargonidin, catechin, myrecetin and kaempferol with casein and gelatin, as proline rich proteins (PRPs), was studied. The binding constants calculated for both flavonoid-casein and flavonoid-gelatin were fairly large (10
5
–10
7
M
−1
) indicating strong interaction. Due to higher proline content in gelatin, the binding constants of flavonoid-gelatin (2.5 × 10
5
–6.2 × 10
7
M
−1
) were found to be higher than flavonoid-casein (1.2 × 10
5
–5.0 × 10
7
M
−1
). All the flavonoids showed significant antibacterial activity against the tested strains. Significant loss in activity was observed due to the complexation with PRPs confirming that binding effectively reduced the concentration of the free flavonoids to be available for antibacterial activity. The decline in activity was corresponding to the values of the binding constants. Though the activities of free catechin and myrecetin were higher compared to pelargonidin, cyanidin and kaempferol yet the decline in activity of catechin and myrecetin due to complexation with casein and gelatin was more pronounced.
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Affiliation(s)
- Jawaad Ahmed Ansari
- Department of Food Science & Technology, University of Karachi, Karachi, Pakistan
| | - Shahina Naz
- Department of Food Science & Technology, University of Karachi, Karachi, Pakistan
| | - Omer Mukhtar Tarar
- Food Technology Section, Food and Marine Resources Research Centre, Laboratories Complex, Karachi, Pakistan
| | - Rahmanullah Siddiqi
- Department of Food Science & Technology, University of Karachi, Karachi, Pakistan
| | - Muhammad Samee Haider
- Food Technology Section, Food and Marine Resources Research Centre, Laboratories Complex, Karachi, Pakistan
| | - Khalid Jamil
- Food Technology Section, Food and Marine Resources Research Centre, Laboratories Complex, Karachi, Pakistan
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50
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Xu ZS, Huang Y, Wang F, Song X, Wang GL, Xiong AS. Transcript profiling of structural genes involved in cyanidin-based anthocyanin biosynthesis between purple and non-purple carrot (Daucus carota L.) cultivars reveals distinct patterns. BMC Plant Biol 2014; 14:262. [PMID: 25269413 PMCID: PMC4190390 DOI: 10.1186/s12870-014-0262-y] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 09/23/2014] [Indexed: 05/23/2023]
Abstract
BACKGROUND Carrots (Daucus carota L.) are among the 10 most economically important vegetable crops grown worldwide. Purple carrot cultivars accumulate rich cyanidin-based anthocyanins in a light-independent manner in their taproots whereas other carrot color types do not. Anthocyanins are important secondary metabolites in plants, protecting them from damage caused by strong light, heavy metals, and pathogens. Furthermore, they are important nutrients for human health. Molecular mechanisms underlying anthocyanin accumulation in purple carrot cultivars and loss of anthocyanin production in non-purple carrot cultivars remain unknown. RESULTS The taproots of the three purple carrot cultivars were rich in anthocyanin, and levels increased during development. Conversely, the six non-purple carrot cultivars failed to accumulate anthocyanins in the underground part of taproots. Six novel structural genes, CA4H1, CA4H2, 4CL1, 4CL2, CHI1, and F3'H1, were isolated from purple carrots. The expression profiles of these genes, together with other structural genes known to be involved in anthocyanin biosynthesis, were analyzed in three purple and six non-purple carrot cultivars at the 60-day-old stage. PAL3/PAL4, CA4H1, and 4CL1 expression levels were higher in purple than in non-purple carrot cultivars. Expression of CHS1, CHI1, F3H1, F3'H1, DFR1, and LDOX1/LDOX2 was highly correlated with the presence of anthocyanin as these genes were highly expressed in purple carrot taproots but not or scarcely expressed in non-purple carrot taproots. CONCLUSIONS This study isolated six novel structural genes involved in anthocyanin biosynthesis in carrots. Among the 13 analyzed structural genes, PAL3/PAL4, CA4H1, 4CL1, CHS1, CHI1, F3H1, F3'H1, DFR1, and LDOX1/LDOX2 may participate in anthocyanin biosynthesis in the taproots of purple carrot cultivars. CHS1, CHI1, F3H1, F3'H1, DFR1, and LDOX1/LDOX2 may lead to loss of light-independent anthocyanin production in orange and yellow carrots. These results suggest that numerous structural genes are involved in anthocyanin production in the taproots of purple carrot cultivars and in the loss of anthocyanin production in non-purple carrots. Unexpressed or scarcely expressed genes in the taproots of non-purple carrot cultivars may be caused by the inactivation of regulator genes. Our results provide new insights into anthocyanin biosynthesis at the molecular level in carrots and for other root vegetables.
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Affiliation(s)
- Zhi-Sheng Xu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Ying Huang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Feng Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Xiong Song
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Guang-Long Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Ai-Sheng Xiong
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
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