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Koga Y, Setoguchi Y, Sugamoto K, Goto Y, Hirano T, Kunitake H. Seasonal Variation and Mean Degree of Polymerization of Proanthocyanidin in Leaves and Branches of Rabbiteye Blueberry ( Vaccinium virgatum Aiton). PLANTS (BASEL, SWITZERLAND) 2024; 13:1864. [PMID: 38999703 PMCID: PMC11244326 DOI: 10.3390/plants13131864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 07/02/2024] [Accepted: 07/04/2024] [Indexed: 07/14/2024]
Abstract
The leaves and branches of rabbiteye blueberry are rich in proanthocyanidins, which are thought to have different physiological activities depending on their structure and degree of polymerization. In this study, we analyzed the constituents of the leaves and branches of rabbiteye blueberry to determine the seasonal variations in polyphenol and proanthocyanidin (PAC) contents as well as their mean degrees of polymerization (mDP). Total PAC content was determined using two methods: The p-dimethylaminocinnamaldehyde (DMACA) method, which measures monomeric PAC, showed an increase from spring to summer in both leaves and branches. On the other hand, using the butanol/HCl method, which measures only polymerized PAC, the PAC content of leaves increased from spring to summer but those of branches remained low throughout the year, showing no significant increase or decrease. Furthermore, analysis of the mDP of PAC showed increases from spring to summer in the leaves of 'Kunisato 35 gou'. Although the highest value (8.0) was observed in October, values around 4 remained throughout the year in the branches. Since differences in polymerization degree affect absorption in the body and physiological properties such as antioxidant capacity, selecting the appropriate harvest time and plant organs for each purpose is expected to ensure the quality of processed blueberry foods.
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Affiliation(s)
- Yasuko Koga
- Graduate School of Agriculture, University of Miyazaki, 1-1 Gakuenkibanadainishi, Miyazaki 889-2192, Japan
| | - Yuno Setoguchi
- Interdisciplinary Graduate School of Agriculture and Engineering, University of Miyazaki, 1-1 Gakuenkibanadainishi, Miyazaki 889-2192, Japan
| | - Kazuhiro Sugamoto
- Faculty of Engineering, University of Miyazaki, 1-1 Gakuenkibanadainishi, Miyazaki 889-2192, Japan
| | - Yo Goto
- Biolabo Co., Ltd., Kobe 650-0047, Japan
| | - Tomonari Hirano
- Faculty of Agriculture, University of Miyazaki, 1-1 Gakuenkibanadainishi, Miyazaki 889-2192, Japan
| | - Hisato Kunitake
- Faculty of Agriculture, University of Miyazaki, 1-1 Gakuenkibanadainishi, Miyazaki 889-2192, Japan
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Logan K, Nwokocha C, Asemota H, Gray W. Characterization of ACE inhibitory activity in Dioscorea alata cv and its implication as a natural antihypertensive extract. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117221. [PMID: 37742877 DOI: 10.1016/j.jep.2023.117221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 09/20/2023] [Accepted: 09/22/2023] [Indexed: 09/26/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Yam (Dioscorea sp.) extracts have been shown to possess a vast array of medicinal properties such as antihypocholesterolemic, antiatherogenic and antihypertensive bioactivity. However, the compounds conferring its antihypertensive bioactivity have not been fully explored. AIM OF THE STUDY The objective of this study was to identify extractable bioactive fractions and associated compounds in Jamaican Renta Yam (Dioscorea alata) that contribute to its antihypertensive properties, using an activity driven chemoinformatic profiling method. MATERIALS AND METHODS A diethyl ether extract of Dioscorea alata was obtained by sequential Solid-Liquid extraction coupled to SPE-HPLC fractionation and its chemical composition was analyzed by GC-MS analysis. Its influence on hypertension was evaluated through a combination of in vitro ACE-Inhibitory activity assays and by molecular docking of the identified compounds to the ACE enzyme. RESULTS SLE revealed the presence of potent antihypertensive activity (ACE IC50 41.99 μg/mL) in the diethyl ether extract (DR2). GC-MS analysis of DR2 indicated the presence of small organic compounds (95.1 g/mol to 200 g/mol) with 2-Phenyl-1,3-oxazol-2-ine (2PO) being the most predominant small organic compound present in the bioactive extract. The binding affinity of 2PO was assessed using molecular docking of 2PO to the ACE enzyme and showed strong binding affinities forming two (2) hydrogen bonds with Tyr135 and Trp220 in the active site of the enzyme. The in vitro effect of DR2 using human umbilical vein endothelial cell lines (HUVECs) revealed; a significant dose-dependent ACE-Inhibitory activity, a stimulating of nitric oxide (NO) release and no toxicity towards these cells. CONCLUSION Overall, this study identified Jamaican Renta Yam (Dioscorea alata) as an alternative source of antihypertensive compounds which may address the toxicity seen with known synthetic antihypertensive agents.
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Affiliation(s)
- Keaton Logan
- Department of Basic Medical Sciences Biochemistry Section, Faculty of Medical Sciences, The University of the West Indies, Mona Campus, Kingston, Jamaica
| | - Chukwuemeka Nwokocha
- Department of Basic Medical Sciences Physiology Section, Faculty of Medical Sciences, The University of the West Indies, Mona Campus, Kingston, Jamaica
| | - Helen Asemota
- Department of Basic Medical Sciences Biochemistry Section, Faculty of Medical Sciences, The University of the West Indies, Mona Campus, Kingston, Jamaica; Biotechnology Centre University of the West Indies, Mona Campus, Kingston, Jamaica
| | - Wesley Gray
- Biotechnology Centre University of the West Indies, Mona Campus, Kingston, Jamaica; Department of Environmental Toxicology, Southern University, Baton Rouge, LA, USA.
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Yu HR, Chen BH. Analysis of Phenolic Acids and Flavonoids in Rabbiteye Blueberry Leaves by UPLC-MS/MS and Preparation of Nanoemulsions and Extracts for Improving Antiaging Effects in Mice. Foods 2023; 12:foods12101942. [PMID: 37238760 DOI: 10.3390/foods12101942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/02/2023] [Accepted: 05/06/2023] [Indexed: 05/28/2023] Open
Abstract
Rabbiteye blueberry leaves, a waste produced after harvest of blueberry, are rich in polyphenols. This study aims to analyze phenolic acids and flavonoids in blueberry leaves by UPLC-MS/MS and prepare nanoemulsions for determining anti-aging activity in mice. Overall, 30% ethanol was the most suitable extraction solvent for total phenolic acids and total flavonoids. A total of four phenolic acids and four flavonoids were separated within seven minutes for further identification and quantitation by UPLC-MS/MS in selective reaction monitoring (SRM) mode, with 3-O-caffeoylquinic acid being present in the highest amount (6474.2 μg/g), followed by quercetin-3-O-galactoside (1943.9 μg/g), quercetin-3-O-rutinoside (1036.6 μg/g), quercetin-3-O-glucoside (867.2 μg/g), 5-O-caffeoylquinic acid (815.8 μg/g), kaempferol-3-O-glucoside (309.7 μg/g), 3,5-dicaffeoylquinic acid (195.3 μg/g), and 4,5-dicaffeoylquinic acid (60.8 μg/g). The blueberry nanoemulsion was prepared by using an appropriate ratio of soybean oil, Tween 80, glycerol, ethanol, and water at 1.2%, 8%, 2%, 2%, and 86.8%, respectively, and mixing with dried blueberry extract, with the mean particle size and zeta potential being 16 nm and -54 mV, respectively. A high stability was observed during storage of nanoemulsion for 90 days at 4 °C and heated at 100 °C for 2 h. An animal study revealed that this nanoemulsion could elevate dopamine content in mice brain as well as superoxide dismutase, glutathione peroxidase, and catalase activities in mice liver while reducing the contents of malondialdehyde and protein carbonyl in mice brains. Collectively, the high-dose nanoemulsion possessed the highest efficiency in improving mice aging with a promising potential for development into a health food.
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Affiliation(s)
- Hsin-Rong Yu
- Department of Food Science, Fu Jen Catholic University, New Taipei City 242062, Taiwan
| | - Bing-Huei Chen
- Department of Food Science, Fu Jen Catholic University, New Taipei City 242062, Taiwan
- Department of Nutrition, China Medical University, Taichung 40402, Taiwan
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Toyama Y, Fujita Y, Toshima S, Hirano T, Yamasaki M, Kunitake H. Comparison of Proanthocyanidin Content in Rabbiteye Blueberry ( Vaccinium virgatum Aiton) Leaves and the Promotion of Apoptosis against HL-60 Promyelocytic Leukemia Cells Using 'Kunisato 35 Gou' Leaf Extract. PLANTS (BASEL, SWITZERLAND) 2023; 12:948. [PMID: 36840296 PMCID: PMC9962561 DOI: 10.3390/plants12040948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/15/2023] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Polyphenol-rich rabbiteye blueberry (Vaccinium virgatum Aiton) leaves have attracted attention as a food material. In this study, we compared the total polyphenols, total proanthocyanidin content, and antioxidant activity of the leaves of 18 blueberry varieties and investigated the seasonal variation in polyphenols. We also evaluated the anti-cancer cell proliferation properties of the rabbiteye blueberry leaf specific cultivar 'Kunisato 35 Gou'. Rabbiteye blueberry leaves had significantly higher total polyphenol and total proanthocyanidin values than northern highbush blueberry and southern highbush blueberry leaves. The antioxidant activity of blueberry leaves was highly positively correlated with both the total polyphenol and total proanthocyanidin content. Variations were observed in the total polyphenol and total proanthocyanidin content of rabbiteye blueberry leaves harvested at different points in the growing season; leaves collected in fall to winter contained more epicatechin in addition to proanthocyanidins. In the evaluation of anti-cancer cell proliferation properties against HL-60 promyelocytic leukemia cells, the September-harvested extracts of rabbiteye blueberry 'Kunisato 35 Gou' showed strong properties, and the use of an FITC Annexin V apoptosis detection kit with propidium iodide confirmed that this HL-60 cell death occurred via apoptosis. Limiting the harvest time would make rabbiteye blueberry leaves a more functional food ingredient.
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Affiliation(s)
- Yuki Toyama
- Graduate School of Agriculture, University of Miyazaki, 1-1 Gakuen-kibanadai nishi, Miyazaki 889-2192, Japan
| | - Yoko Fujita
- Michimoto Foods Products Co., Ltd., 1667 Kou Tano-cho, Miyazaki 889-1701, Japan
| | - Saki Toshima
- Interdisciplinary Graduate School of Agriculture and Engineering, University of Miyazaki, 1-1 Gakuenkibanadainishi, Miyazaki 889-2192, Japan
| | - Tomonari Hirano
- Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen-kibanadai nishi, Miyazaki 889-2192, Japan
| | - Masao Yamasaki
- Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen-kibanadai nishi, Miyazaki 889-2192, Japan
| | - Hisato Kunitake
- Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen-kibanadai nishi, Miyazaki 889-2192, Japan
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Nanoencapsulation of Vaccinium ashei Leaf Extract in Eudragit ® RS100-Based Nanoparticles Increases Its In Vitro Antioxidant and In Vivo Antidepressant-like Actions. Pharmaceuticals (Basel) 2023; 16:ph16010084. [PMID: 36678581 PMCID: PMC9866962 DOI: 10.3390/ph16010084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 12/30/2022] [Accepted: 01/05/2023] [Indexed: 01/11/2023] Open
Abstract
Depression is a major psychiatric disorder in Brazil and worldwide. Vaccinium ashei (V. ashei) leaves are cultivation by-products with high bioactive compound levels. Here, a hydroalcoholic extract of V. ashei leaves (HEV) was associated with Eudragit® RS100-based nanoparticles (NPHEV) to evaluate the in vitro antioxidant and in vivo antidepressant-like effects. Interfacial deposition of the preformed polymer method was used for NPHEV production. The formulations were evaluated regarding physicochemical characteristics, antioxidant activity (DPPH radical scavenging and oxygen radical absorbance capacity), and antidepressant-like action (1-25 mg/kg, single intragastric administration) assessed in forced swimming and tail suspension tests in male Balb-C mice. The NPHEV presented sizes in the nanometric range (144-206 nm), positive zeta potential values (8-15 mV), polydispersity index below 0.2, and pH in the acid range. The phenolic compound content was near the theoretical values, although the rutin presented higher encapsulation efficiency (~95%) than the chlorogenic acid (~60%). The nanoencapsulation improved the HEV antioxidant effect and antidepressant-like action by reducing the immobility time in both behavioral tests. Hence, Eudragit® RS100 nanoparticles containing HEV were successfully obtained and are a promising alternative to manage depression.
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Schneider Cezarotto V, Mota Ferreira L, Pizzi Dal'Pupo R, Dos Santos A, Freitas Santos K, Blanco Linares CE, Stein AC, Marcondes Sari MH, Cruz L. Hydroalcoholic Extract of Rabbiteye Blueberry (Vaccinium ashei) Leaves Mitigates Unpredictable Chronic Mild Stress Model Inducing Depressive-Like Behavior in Rats. Chem Biodivers 2023; 20:e202200514. [PMID: 36512710 DOI: 10.1002/cbdv.202200514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 12/10/2022] [Accepted: 12/13/2022] [Indexed: 12/15/2022]
Abstract
Several studies reported that rabbiteye blueberry (Vaccinium ashei Reade) leaves present promising biological properties. To the best of our knowledge, no study investigated the possible application of their hydroalcoholic extract for treating mood disorders. Herein, we evaluated if the hydroalcoholic extract of rabbiteye blueberry (Vaccinium ashei Reade) leaves (HEV) promotes an antidepressant-like effect in rodents using chronic experimental approaches. The effect of repeated administration of HEV (50 mg/kg, p.o.) on the immobility time was assessed in the forced swimming test (FST) in an unpredictable chronic mild stress (UCMS) model. Repeated treatment with HEV reversed the depressive-like behavior induced by UCMS by reducing the immobility time. Besides, the exposure to HEV caused no changes in relative organ weights in rats submitted to UCMS. The results indicated that HEV administration presented antidepressant-like action devoid of toxic effects. Thus, it is possible to suggest its potential as a safe and accessible therapeutic tool in the management of depression and other related mood disorders.
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Affiliation(s)
- Verciane Schneider Cezarotto
- Departamento de Farmácia Industrial, Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal de Santa Maria, Santa Maria, RS 97105-900, Brazil.,Departamento de Ciências da Saúde, Curso de Farmácia, Universidade Regional Integrada do Alto Uruguai e das Missões, Frederico Westphalen, RS 98400-000, Brazil
| | - Luana Mota Ferreira
- Departamento de Farmácia Industrial, Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal de Santa Maria, Santa Maria, RS 97105-900, Brazil.,Departamento de Farmácia, Universidade Federal do Paraná, Curitiba, PR 80210-170, Brazil
| | - Rafaela Pizzi Dal'Pupo
- Departamento de Ciências da Saúde, Curso de Farmácia, Universidade Regional Integrada do Alto Uruguai e das Missões, Frederico Westphalen, RS 98400-000, Brazil
| | - Adriel Dos Santos
- Departamento de Ciências da Saúde, Curso de Farmácia, Universidade Regional Integrada do Alto Uruguai e das Missões, Frederico Westphalen, RS 98400-000, Brazil
| | - Karen Freitas Santos
- Departamento de Ciências da Saúde, Curso de Farmácia, Universidade Regional Integrada do Alto Uruguai e das Missões, Frederico Westphalen, RS 98400-000, Brazil
| | - Carlos Eduardo Blanco Linares
- Departamento de Ciências da Saúde, Curso de Farmácia, Universidade Regional Integrada do Alto Uruguai e das Missões, Frederico Westphalen, RS 98400-000, Brazil
| | - Ana Cristina Stein
- Departamento de Ciências da Saúde, Curso de Farmácia, Universidade Regional Integrada do Alto Uruguai e das Missões, Frederico Westphalen, RS 98400-000, Brazil
| | - Marcel Henrique Marcondes Sari
- Departamento de Farmácia Industrial, Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal de Santa Maria, Santa Maria, RS 97105-900, Brazil
| | - Letícia Cruz
- Departamento de Farmácia Industrial, Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal de Santa Maria, Santa Maria, RS 97105-900, Brazil
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Zhang J, Li S, An H, Zhang X, Zhou B. Integrated transcriptome and metabolome analysis reveals the anthocyanin biosynthesis mechanisms in blueberry ( Vaccinium corymbosum L.) leaves under different light qualities. FRONTIERS IN PLANT SCIENCE 2022; 13:1073332. [PMID: 36570935 PMCID: PMC9772006 DOI: 10.3389/fpls.2022.1073332] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 11/21/2022] [Indexed: 05/27/2023]
Abstract
INTRODUCTION Blueberry (Vaccinium corymbosum L.) is a popular fruit with an abundance of anthocyanins in its leaves and fruits. Light is one of the pivotal environmental elements that affects plant growth and development, but the regulatory mechanism between light quality and anthocyanin formation is poorly understood. METHODS An integrated transcriptome and metabolome analysis was performed to investigate the effects of white (control), blue (B), red (R), and red/blue (60R/40B) light on blueberry growth and reveal the potential pathway controlling anthocyanin biosynthesis in blueberry leaves. RESULTS The anthocyanin content was significantly improved by the blue and red/blue light when compared with white light, whereas there was a significant reduction in the photosynthesis under the blue light, showing an inverse trend to that of anthocyanin accumulation. Transcriptomic analysis resulted in the assembly of 134,709 unigenes. Of these, 22 were differentially expressed genes (DEGs) that participate in the anthocyanin biosynthesis pathway, with the majority being significantly up-regulated under the blue light. Most of the photosynthesis-related genes that were down-regulated were expressed during anthocyanin accumulation. Targeted metabolome profiling identified 44 metabolites associated with anthocyanin biosynthesis. The contents of most of these metabolites were higher under blue light than the other light conditions, which was consistent with the transcriptome results. The integrated transcriptome and metabolome analysis suggested that, under blue light, leucoanthocyanidin dioxygenase (LDOX), O-methyltransferase (OMT), and UDP-glucose flavonoid glucosyltransferase (UFGT) were the most significantly expressed, and they promoted the synthesis of cyanidin (Cy), malvidin (Mv), and pelargonidin (Pg) anthocyanidins, respectively. The expression levels of dihydroflavonol 4-reductase (DFR) and OMT, as well as the accumulation of delphinidin (Dp), peonidin (Pn), and petunidin (Pt), were significantly increased by the red/blue light. DISCUSSION The blue and red/blue lights promoted anthocyanin biosynthesis via inducing the expression of key structural genes and accumulation of metabolites involved in anthocyanin synthesis pathway. Moreover, there was a possible feedback regulating correlation between anthocyanin biosynthesis and photosynthesis under different light qualities in blueberry leaves. This study would provide a theoretical basis for elucidating the underlying regulatory mechanism of anthocyanin biosynthesis of V. corymbosum.
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Affiliation(s)
- Jiaying Zhang
- Forestry and Pomology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
- Shanghai Key Lab of Protected Horticultural Technology, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Shuigen Li
- Forestry and Pomology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
- Shanghai Key Lab of Protected Horticultural Technology, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Haishan An
- Forestry and Pomology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
- Shanghai Key Lab of Protected Horticultural Technology, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Xueying Zhang
- Forestry and Pomology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
- Shanghai Key Lab of Protected Horticultural Technology, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Boqiang Zhou
- Forestry and Pomology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
- Shanghai Key Lab of Protected Horticultural Technology, Shanghai Academy of Agricultural Sciences, Shanghai, China
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Sandhiutami NMD, Dewi RS, Rahma F, Yang F. Potential Use of Some Indonesian Plants to Inhibits Angiotensin-converting Enzyme In Vitro. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.10251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND: Some Indonesian plants, such as Vaccinium varingiaefolium Miq., Plectranthus scutellarioides (L.) R.Br., Syzygium myrtifolium Walp., and Eclipta prostrata (L.) L., are rich of flavonoid and anthocyanin. Flavonoid, flavan-3-ol, quercetin, anthocyanin, and tannin compounds can reduce systemic vascular resistance because they cause vasodilation and are thought to be able to influence the function of angiotensin-converting enzyme (ACE) and inhibit ACE activity, which plays an important role in the process of hypertension.
AIM: This study aims to determine the potential of some Indonesian plants to inhibit ACE activity.
METHODS: Testing of ACE inhibitory activity is carried out by the hippuric acid compounds formed as a result of the reaction between the substrate and the enzyme, then measured spectrophotometrically. The inhibitory and IC50 values of each test sample were compared with the positive control of Captopril.
RESULTS: The four plant extracts contained secondary metabolites, such as flavonoids, tannins, saponins, quinones, steroids, triterpenoids, and essential oils. Ethanol extract of V. varingiaefolium Miq., P. scutellarioides (L.) R.Br., S. myrtifolium Walp., and E. prostrata (L.) L. each had an IC50 value of ACE inhibition activity of 131.4 ppm, 206. 7 ppm, 151.2 ppm, and 196.0 ppm. The IC50 value of the Captopril with inhibition of ACE activity is 11.1 ppm.
CONCLUSION: This study shows that some Indonesian plants have the activity to inhibit the ACE and potential antihypertensive drug candidates with ACE inhibitory activity.
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Wong CY, Al-Salami H, Dass CR. C2C12 cell model: its role in understanding of insulin resistance at the molecular level and pharmaceutical development at the preclinical stage. J Pharm Pharmacol 2020; 72:1667-1693. [PMID: 32812252 DOI: 10.1111/jphp.13359] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 07/17/2020] [Accepted: 07/25/2020] [Indexed: 12/11/2022]
Abstract
OBJECTIVES The myoblast cell line, C2C12, has been utilised extensively in vitro as an examination model in understanding metabolic disease progression. Although it is indispensable in both preclinical and pharmaceutical research, a comprehensive review of its use in the investigation of insulin resistance progression and pharmaceutical development is not available. KEY FINDINGS C2C12 is a well-documented model, which can facilitate our understanding in glucose metabolism, insulin signalling mechanism, insulin resistance, oxidative stress, reactive oxygen species and glucose transporters at cellular and molecular levels. With the aid of the C2C12 model, recent studies revealed that insulin resistance has close relationship with various metabolic diseases in terms of disease progression, pathogenesis and therapeutic management. A holistic, safe and effective disease management is highly of interest. Therefore, significant efforts have been paid to explore novel drug compounds and natural herbs that can elicit therapeutic effects in the targeted sites at both cellular (e.g. mitochondria, glucose transporter) and molecular level (e.g. genes, signalling pathway). SUMMARY The use of C2C12 myoblast cell line is meaningful in pharmaceutical and biomedical research due to their expression of GLUT-4 and other features that are representative to human skeletal muscle cells. With the use of the C2C12 cell model, the impact of drug delivery systems (nanoparticles and quantum dots) on skeletal muscle, as well as the relationship between exercise, pancreatic β-cells and endothelial cells, was discovered.
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Affiliation(s)
- Chun Y Wong
- School of Pharmacy and Biomedical Science, Curtin University, Bentley, WA, Australia.,Curtin Health Innovation Research Institute, Bentley, WA, Australia
| | - Hani Al-Salami
- School of Pharmacy and Biomedical Science, Curtin University, Bentley, WA, Australia.,Curtin Health Innovation Research Institute, Bentley, WA, Australia.,Biotechnology and Drug Development Research Laboratory, Curtin University, Bentley, WA, Australia
| | - Crispin R Dass
- School of Pharmacy and Biomedical Science, Curtin University, Bentley, WA, Australia.,Curtin Health Innovation Research Institute, Bentley, WA, Australia
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Popescu RG, Voicu SN, Gradisteanu Pircalabioru G, Ciceu A, Gharbia S, Hermenean A, Georgescu SE, Panaite TD, Dinischiotu A. Effects of Dietary Inclusion of Bilberry and Walnut Leaves Powder on the Digestive Performances and Health of Tetra SL Laying Hens. Animals (Basel) 2020; 10:ani10050823. [PMID: 32397418 PMCID: PMC7278370 DOI: 10.3390/ani10050823] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 05/03/2020] [Accepted: 05/05/2020] [Indexed: 02/07/2023] Open
Abstract
Simple Summary In poultry, diet composition influences growth performance, egg production, as well as digestion. In this study, the effects of dietary additives obtained from bilberry and walnut leaves powder on the digestive performances of Tetra SL hens were evaluated by histologic and morphometric analyses of the intestinal mucosa as well as by the enzymatic activity measurements of alpha-amylase, invertase, maltase, and trypsin correlated with cecum microbiota. Abstract The purpose of this study was to examine the effects of dietary inclusion of two additives at the final concentration of 0.5% bilberry (E1) and 1% walnut (E2) leaves powder in the basal diet on digestive health of hens. A total number of 90 Tetra SL hens were divided into two experimental groups (E1 and E2) and one control group (C) consisting of 30 hens each. After four weeks, 10 hens of each group were sacrificed and tissue samples and intestinal content were taken from the duodenum, jejunum, and cecum in order to perform histological, enzymatic, and microbiota analyses. In groups E1 and E2, the histological analysis showed a significant increase of villus height, resulting probably in increased absorption of nutrients in duodenum and jejunum. A decrease in the specific activity of alpha-amylase and trypsin in E1 and E2 for both duodenum and jejunum compared to the control one was also recorded. In addition, the maltase and invertase specific activity in duodenum increased, a tendency that was kept for maltase but not for invertase in jejunum. The cecal microbiota of E1 and E2 individuals was characterized by an increase of Firmicutes and Lactobacilli and a decrease of Enterobacteriaceae. In conclusion, our results indicate that bilberry and walnut leaves additives in feed may improve the health status of the poultry gastrointestinal tract.
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Affiliation(s)
- Roua Gabriela Popescu
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania; (R.G.P.); (A.C.); (S.G.); (S.E.G.); (A.D.)
| | - Sorina Nicoleta Voicu
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania; (R.G.P.); (A.C.); (S.G.); (S.E.G.); (A.D.)
- Department of Pharmacy, Faculty of Pharmacy, Titu Maiorescu University, 004051 Bucharest, Romania
- Correspondence: ; Tel.: +40-21-318-1575
| | | | - Alina Ciceu
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania; (R.G.P.); (A.C.); (S.G.); (S.E.G.); (A.D.)
- Department of Experimental and Applied Biology, “Aurel Ardelean” Institute of Life Sciences, Vasile Goldis Western University of Arad, 310414 Arad, Romania;
| | - Sami Gharbia
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania; (R.G.P.); (A.C.); (S.G.); (S.E.G.); (A.D.)
- Department of Experimental and Applied Biology, “Aurel Ardelean” Institute of Life Sciences, Vasile Goldis Western University of Arad, 310414 Arad, Romania;
| | - Anca Hermenean
- Department of Experimental and Applied Biology, “Aurel Ardelean” Institute of Life Sciences, Vasile Goldis Western University of Arad, 310414 Arad, Romania;
| | - Sergiu Emil Georgescu
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania; (R.G.P.); (A.C.); (S.G.); (S.E.G.); (A.D.)
| | - Tatiana Dumitra Panaite
- National Research and Development Institute for Animal Biology (IBNA Balotești), 077015 Ilfov, Romania;
| | - Anca Dinischiotu
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania; (R.G.P.); (A.C.); (S.G.); (S.E.G.); (A.D.)
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Fotirić Akšić M, Dabić Zagorac D, Sredojević M, Milivojević J, Gašić U, Meland M, Natić M. Chemometric Characterization of Strawberries and Blueberries according to Their Phenolic Profile: Combined Effect of Cultivar and Cultivation System. Molecules 2019; 24:molecules24234310. [PMID: 31779117 PMCID: PMC6930459 DOI: 10.3390/molecules24234310] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 11/20/2019] [Accepted: 11/24/2019] [Indexed: 12/12/2022] Open
Abstract
Chemical characterizations of leaves and fruits that were obtained from organically and integrally produced strawberries ('Favette', 'Alba', and 'Clery') and blueberries ('Bluecrop', 'Duke', and 'Nui') from western Serbia were undertaken in this study. Phenolic analysis was done while using ultra-high performance liquid chromatography coupled to a linear ion trap-Orbitrap hybrid mass analyzer, while total phenolic content (TPC), total anthocyanin content (TAC), and radical-scavenging activity (RSA) by spectrophotometry. In general, leaves and fruits from blueberry showed higher levels of TPC and TAC as compared to strawberry. These chemical traits were larger in organic grown fruits and larger in leaves than fruits. The most abundant phenolics in leaves and fruits of blueberry was 5-O-caffeoylquinic acid, followed by quercetin 3-O-galactoside, while catechin, quercetin, and kaempferol 3-O-glucosid were dominant in the leaves and fruits of strawberry. cis, trans-Abscisic acid was detected in all fruit samples, but not in leaves. Blueberries (both fruits and leaves) were separated from strawberries, but only organic blueberry fruits were distinguished from integrated fruits, according to principal component analysis. Quercetin, kaempferol, 5-O-caffeoylquinic acid, ferulic acid, caffeic acid, catechin, p-coumaric acid, and p-hydroxybenzoic acid were the most influential phenolic compounds for the separation. Much higher contents of TPC, RSA, TAC, quercetin 3-O-galactoside, and quercetin were found in fruits and TPC, RSA, catechin, p-hydroxybenzoicacid, p-coumaricacid, and ferulic acid in leaves in all three blueberry cultivars and the strawberry cultivar 'Clery'. These phenolic compounds are good sources of antioxidant compounds with potentially high beneficial effects on human health.
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Affiliation(s)
- Milica Fotirić Akšić
- Faculty of Agriculture, University of Belgrade, 11080 Belgrade, Serbia;
- Correspondence: ; Tel.: +381-64-2612710
| | - Dragana Dabić Zagorac
- Innovation Center, University of Belgrade-Faculty of Chemistry, P.O. Box 51, 11158 Belgrade, Serbia; (D.D.Z.); (M.S.)
| | - Milica Sredojević
- Innovation Center, University of Belgrade-Faculty of Chemistry, P.O. Box 51, 11158 Belgrade, Serbia; (D.D.Z.); (M.S.)
| | | | - Uroš Gašić
- Institute for Biological Research “Siniša Stanković”—National Institute of Republic of Serbia, University of Belgrade, 11060 Belgrade, Serbia;
| | - Mekjell Meland
- Norwegian Institute of Bioeconomy Research-NIBIO Ullensvang, NO-5781 Lofthus, Norway;
| | - Maja Natić
- Faculty of Chemistry, University of Belgrade, P.O. Box 51, 11158 Belgrade, Serbia;
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Di Domenico M, Pinto F, Quagliuolo L, Contaldo M, Settembre G, Romano A, Coppola M, Ferati K, Bexheti-Ferati A, Sciarra A, Nicoletti GF, Ferraro GA, Boccellino M. The Role of Oxidative Stress and Hormones in Controlling Obesity. Front Endocrinol (Lausanne) 2019; 10:540. [PMID: 31456748 PMCID: PMC6701166 DOI: 10.3389/fendo.2019.00540] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 07/19/2019] [Indexed: 12/15/2022] Open
Abstract
The accumulation of adipose tissue in the body occurs because the energy introduced with food and drink exceeds that expense, but to understand why this imbalance is established and why it is maintained over time, it is important to consider the main causes and risk factors of excess weight. In this review, we will refer to the main factors linked to obesity, starting from oxidative stress to hormonal factors including the role of obesity in breast cancer. Among the many hypotheses formulated on the etiopathology of obesity, a key role can be attributed to the relationship between stress oxidative and intestinal microbiota. Multiple evidences tend to show that genetic, epigenetic, and lifestyle factors contribute to determine in the obese an imbalance of the redox balance correlated with the alteration of the intestinal microbial flora. Obesity acts negatively on the wound healing, in fact several studies indicate morbid obesity significantly increased the risk of a post-operative wound complication and infection. Currently, in the treatment of obesity, medical interventions are aimed not only at modifying caloric intake, but also to modulate and improve the composition of diet with the aim of rebalancing the microbiota-redox state axis.
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Affiliation(s)
- Marina Di Domenico
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
- Department of Biology, College of Science and Technology, Temple University, Philadelphia, PA, United States
| | - Federica Pinto
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Lucio Quagliuolo
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Maria Contaldo
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Giuliana Settembre
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Antonio Romano
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Mario Coppola
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Kenan Ferati
- Faculty of Medicine, University of Tetovo, Tetovo, Macedonia
| | | | - Antonella Sciarra
- Department of Translational Medicad Sciences, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Giovanni Francesco Nicoletti
- Plastic Surgery Unit, Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Giuseppe Andrea Ferraro
- Plastic Surgery Unit, Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania Luigi Vanvitelli, Naples, Italy
- *Correspondence: Giuseppe Andrea Ferraro
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Yamasaki M, Hamada K, Fujii K, Nishiyama K, Yamasaki Y, Tari H, Araki K, Arakawa T. Vaccinium ashei leaves extract alleviates insulin resistance via AMPK independent pathway in C2C12 myotube model. Biochem Biophys Rep 2018; 14:182-187. [PMID: 29872751 PMCID: PMC5986718 DOI: 10.1016/j.bbrep.2018.05.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 04/17/2018] [Accepted: 05/07/2018] [Indexed: 01/08/2023] Open
Abstract
Blueberry (Vaccinium ashei) leaf has recently attracted attention as an anti-obesity food component. In this study, we examined the effects of blueberry leaf extract (BLEx) on insulin signaling in C2C12 differentiated myoblasts. The results showed that BLEx promotes the intracellular uptake of 2-[N-(7-Nitrobenz-2-oxa-1,3-diazol-4-yl)amino]−2-deoxy-D-glucose (2-NBDG) and phosphorylation of Akt under insulin stimulation. In addition, pretreatment with BLEx ameliorated TNF-α-nduced insulin resistance with regard to 2-NBDG uptake and Akt phosphorylation. Moreover, BLEx prevented the TNF-α−induced activation of JNK and NF-kB pathways and phosphorylation of IRS-1 at serine residue. BLEx failed to induce phosphorylation of AMPK as well as did not prevent the restoration of 2-NBDG uptake under TNF-α–induced insulin resistance. Overall, skeletal muscle is a putative target for the anti-diabetic effect of BLEx by amelioration of insulin resistance. Blueberry leaf extract (BLEx) promotes the intracellular uptake of 2-NBDG. BLEx prevented the TNF-α−induced insulin resistance. BLEx failed to activate AMPK pathway. Skeletal muscle is putative target of the BLEx for its anti-diabetic effect.
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Affiliation(s)
- Masao Yamasaki
- Faculty of Agriculture, University of Miyazaki, 1-1 Gakuenkibanadai-nishi, Miyazaki 889-2192, Japan
| | - Kensaku Hamada
- Faculty of Agriculture, University of Miyazaki, 1-1 Gakuenkibanadai-nishi, Miyazaki 889-2192, Japan
| | - Kento Fujii
- Faculty of Agriculture, University of Miyazaki, 1-1 Gakuenkibanadai-nishi, Miyazaki 889-2192, Japan
| | - Kazuo Nishiyama
- Faculty of Agriculture, University of Miyazaki, 1-1 Gakuenkibanadai-nishi, Miyazaki 889-2192, Japan
| | - Yumi Yamasaki
- Faculty of Regional Innovation, University of Miyazaki, 1-1 Gakuenkibanadai-nishi, Miyazaki 889-2192, Japan
| | - Hiroyuki Tari
- Bizen Chemical Company Limited, 363 Tokudomi, Akaiwa 709-0716, Japan
| | - Kaori Araki
- Bizen Chemical Company Limited, 363 Tokudomi, Akaiwa 709-0716, Japan
| | - Teruaki Arakawa
- Bizen Chemical Company Limited, 363 Tokudomi, Akaiwa 709-0716, Japan
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Ultrasound-negative pressure cavitation extraction of phenolic compounds from blueberry leaves and evaluation of its DPPH radical scavenging activity. FOOD AND BIOPRODUCTS PROCESSING 2018. [DOI: 10.1016/j.fbp.2018.01.003] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Patten GS, Abeywardena MY, Bennett LE. Inhibition of Angiotensin Converting Enzyme, Angiotensin II Receptor Blocking, and Blood Pressure Lowering Bioactivity across Plant Families. Crit Rev Food Sci Nutr 2016; 56:181-214. [PMID: 24915402 DOI: 10.1080/10408398.2011.651176] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Hypertension is a major risk factor for coronary heart disease, kidney disease, and stroke. Interest in medicinal or nutraceutical plant bioactives to reduce hypertension has increased dramatically. The main biological regulation of mammalian blood pressure is via the renin-angiotensin-aldosterone system. The key enzyme is angiotensin converting enzyme (ACE) that converts angiotensin I into the powerful vasoconstrictor, angiotensin II. Angiotensin II binds to its receptors (AT1) on smooth muscle cells of the arteriole vasculature causing vasoconstriction and elevation of blood pressure. This review focuses on the in vitro and in vivo reports of plant-derived extracts that inhibit ACE activity, block angiotensin II receptor binding and demonstrate hypotensive activity in animal or human studies. We describe 74 families of plants that exhibited significant ACE inhibitory activity and 16 plant families with potential AT1 receptor blocking activity, according to in vitro studies. From 43 plant families including some of those with in vitro bioactivity, the extracts from 73 plant species lowered blood pressure in various normotensive or hypertensive in vivo models by the oral route. Of these, 19 species from 15 families lowered human BP when administered orally. Some of the active plant extracts, isolated bioactives and BP-lowering mechanisms are discussed.
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Affiliation(s)
- Glen S Patten
- a CSIRO Preventative Health National Research Flagship, Animal, Food and Health Sciences , Adelaide , South Australia , Australia
| | - Mahinda Y Abeywardena
- a CSIRO Preventative Health National Research Flagship, Animal, Food and Health Sciences , Adelaide , South Australia , Australia
| | - Louise E Bennett
- b CSIRO Preventative Health National Research Flagship, Animal, Food and Health Sciences, Werribee , Victoria , British Columbia , Australia
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Namjoyan F, Azemi ME, Abdollahi E, Goudarzi N, Nikan K. Angiotensin I Converting Enzyme Inhibitory Activities of Hydroalcoholic Extract of Nardostachys jatamansi, Prangos ferulacea and Marrubium vulgare. Jundishapur J Nat Pharm Prod 2015. [DOI: 10.17795/jjnpp-17255] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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17
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Yamasaki M, Matsuyama Y, Hayasegawa R, Hamada K, Nishiyama K, Kai T, Kamenaga K, Arakawa T, Tari H, Shimizu Y, Matsuura Y, Yukizaki C. Blueberry ( Vaccinium virgatum Aiton) Leaf Infusion Ameliorates Insulin Resistance in Mice Fed a High-fat, High-sucrose Diet. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2015. [DOI: 10.3136/fstr.21.827] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Masao Yamasaki
- Department of Biochemistry and Applied Biosciences, 2Department of Veterinary Science, Faculty of Agriculture, University of Miyazaki
| | - Yusuke Matsuyama
- Department of Biochemistry and Applied Biosciences, 2Department of Veterinary Science, Faculty of Agriculture, University of Miyazaki
| | - Rintaro Hayasegawa
- Department of Biochemistry and Applied Biosciences, 2Department of Veterinary Science, Faculty of Agriculture, University of Miyazaki
| | - Kensaku Hamada
- Department of Biochemistry and Applied Biosciences, 2Department of Veterinary Science, Faculty of Agriculture, University of Miyazaki
| | - Kazuo Nishiyama
- Department of Biochemistry and Applied Biosciences, 2Department of Veterinary Science, Faculty of Agriculture, University of Miyazaki
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18
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Sheng S, Wang Y, Long C, Su W, Rong X. Chinese medicinal formula Fufang Xueshuantong capsule could inhibit the activity of angiotensin converting enzyme. BIOTECHNOL BIOTEC EQ 2014; 28:322-326. [PMID: 26019516 PMCID: PMC4433917 DOI: 10.1080/13102818.2014.911611] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Accepted: 07/08/2013] [Indexed: 12/25/2022] Open
Abstract
Fufang Xueshuantong (FXST) capsule, a Chinese medicinal formula composed of four herbals – Panax notoginseng, Radix Astragali, Radix Salvia Miltiorrhizae and Radix Scrophulariaceae, has been used to treat cardiovascular diseases for many years, but the pharmacological mechanisms underlying its effects has not been clarified. This study investigates if a connection between FXST and angiotensin converting enzyme (ACE) might be an explanation for its pharmacological effects. ACE inhibition assay was performed on FXST capsule, 50% ethanol extracts from the four herbals and three selected saponins most abundant in P. notoginseng (Ginsenoside Rg1, Ginsenoside Rb1 and Notoginsenoside R1) using a biochemical test. Reversed-phase high-performance liquid chromatography of liberated hippuric acid from the ACE assay was conducted to determine the inhibitory effect. As a result, FXST and extracts from P. notoginseng showed a significant and dose-dependent inhibition on ACE activity with the IC50 values of 115 μg/ml and 179 μg/ml, respectively. But extracts from the other three herbals and the three selected saponins had no significant effect on ACE inhibition. Compared to other reported plant extracts, FXST could be considered as an effective ACE inhibitor. The inhibition of ACE activity supports the traditional use of FXST on blood circulation and the inhibitory property of FXST is mainly caused by P. notoginseng.
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Affiliation(s)
- Shujing Sheng
- Guangzhou Quality R&D Center of Traditional Chinese Medicine, Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University , Guangzhou , PR China ; Guangdong Zhongsheng Pharmaceutical Co., Ltd. , Dongguan , PR China
| | - Yonggang Wang
- Guangzhou Quality R&D Center of Traditional Chinese Medicine, Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University , Guangzhou , PR China
| | - Chaofeng Long
- Guangdong Zhongsheng Pharmaceutical Co., Ltd. , Dongguan , PR China
| | - Weiwei Su
- Guangzhou Quality R&D Center of Traditional Chinese Medicine, Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University , Guangzhou , PR China
| | - Xia Rong
- Guangzhou Blood Center , Guangzhou , 510095 , China
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Effect ofVaccinium ashei readeLeaves on Lipid Metabolism in Otsuka Long-Evans Tokushima Fatty Rats. Biosci Biotechnol Biochem 2014; 72:1619-22. [DOI: 10.1271/bbb.80036] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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20
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Zhu L, Liu X, Tan J, Wang B. Influence of harvest season on antioxidant activity and constituents of rabbiteye blueberry ( Vaccinium ashei ) leaves. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:11477-11483. [PMID: 24175648 DOI: 10.1021/jf4035892] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
To select rabbiteye blueberry leaves from an appropriate harvest season to develop functional foods, this paper studied the bioactive secondary metabolites and the antioxidant capacity of rabbiteye blueberry leaves from May, September, and November. The results showed the leaves from May had the highest content of total flavonoids (114.21 mg/g) and the leaves from November had the highest content of total polyphenols and proanthocyanidins (425.24 and 243.29 mg/g, respectively). It was further found that blueberry leaves from different seasons have similar bioactive constituents, but their contents are obviously different by HPLC. The rabbiteye blueberry leaves from November had the highest antioxidant capacity, which was well correlated with their highest proanthocyanidin content. The results clarify that the blueberry leaves from different seasons have different contents of bioactive secondary metabolites and different antioxidant activities, which implied that leaves from November should be selected first for utilization in functional foods.
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Affiliation(s)
- Liancai Zhu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University , Chongqing 400030, China
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21
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Li C, Feng J, Huang WY, An XT. Composition of polyphenols and antioxidant activity of rabbiteye blueberry (Vaccinium ashei) in Nanjing. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:523-31. [PMID: 23268789 DOI: 10.1021/jf3046158] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The total phenolic content (TFC), total flavonoid content (TFC), antioxidant activity, and polyphenol composition of extracts of rabbiteye blueberry fruit polyphenols (BBFPs), rabbiteye blueberry pomace polyphenols (BBPPs), and rabbiteye blueberry leaves polyphenols (BBLPs) were investigated. The highest TPC and TFC were found in the extract of BBLPs, followed by the extracts of BBPPs and BBFPs. The extract of BBLPs exhibited the highest antioxidant activity according to five antioxidant methods. All three samples exhibited significantly higher antioxidant activity than the positive control rutin. HPLC-DAD-MS(n) analysis showed that the extract of BBFPs contained nine different anthocyanins, while the extract of BBPPs contained only four of them. In addition, four caffeoylquinic acids, quercetin, and its three derivatives were detected in the extract of BBLPs. The results indicate that the fruits, pomace, and leaves of rabbiteye blueberry were good sources of polyphenols and natural antioxidants. These could be useful as a functional food ingredient beneficial to human health.
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Affiliation(s)
- Chunyang Li
- Department of Functional Food and Bio-active compounds, Institute of Farm Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, Jiangsu, China.
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Matsuura Y, Kaneko M, Hirabaru H, Hidaka F, Sakaida H, Kai T, Yukizaki C, Sakono M. Antihypertensive Effect of Blueberry Leaves on Spontaneously Hypertensive Rats. J JPN SOC FOOD SCI 2013. [DOI: 10.3136/nskkk.60.689] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Balasuriya N, Rupasinghe HPV. Antihypertensive properties of flavonoid-rich apple peel extract. Food Chem 2012; 135:2320-5. [PMID: 22980808 DOI: 10.1016/j.foodchem.2012.07.023] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2012] [Revised: 06/01/2012] [Accepted: 07/05/2012] [Indexed: 10/28/2022]
Abstract
Hypertension is a major public health problem rising across the globe. Inhibition of angiotensin converting enzyme (ACE) is identified as a main therapeutic target in controlling high blood pressure. The present study investigated the ACE inhibitory property of a flavonoid-rich apple peel extract (FAE), its constituents, selected flavonoids and some quercetin metabolites using a biochemical assay of ACE inhibition and a human umbilical vein endothelial cell (HUVEC) model. FAE, all the tested flavonoids except genistein, and two quercetin metabolites (quercetin-3-O-glucuronic acid and quercetin-3-O-sulfate) significantly (p<0.05) inhibited ACE. Enzyme kinetic analysis revealed that flavonoids are competitive inhibitors of ACE. In the HUVEC model, FAE, quercetin-3-O-glucoside and quercetin-3-O-glucuronic acid inhibited significantly (p<0.05) ACE activity. Overall, FAE and most of the flavonoids tested showed ACE inhibition in vitro which needs further investigations using animal and human clinical trials.
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Affiliation(s)
- Nileeka Balasuriya
- Department of Environmental Sciences, Nova Scotia Agricultural College, Truro, NS, Canada B2N 5E3
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Effect of Vaccinium ashei reade leaf extracts on lipid metabolism in obese OLETF rats. Biosci Biotechnol Biochem 2011; 75:2304-8. [PMID: 22146710 DOI: 10.1271/bbb.110451] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The effects of a hot water extract and fractional extracts from rabbiteye blueberry (Vaccinium ashei reade) leaves (BBL) on lipid metabolism were studied in obese Otsuka Long-Evans Tokushima Fatty (OLETF) rats. Feeding the hot water extract and fractional extracts from BBL alleviated hepatic triglyceride accumulation in the rats. Additionally, feeding with the flavonol glycoside (FG) and proanthocyanidin (PA) fractions lowered serum cholesterol levels in the obese rats. The results from measurements of the hepatic enzyme activity indicate that the hypolipidemic effects of the hot water extract and the PA fraction might be attributable to enhanced lipolysis in the liver. The reduced serum levels of C-reactive protein, an inflammatory cytokine, by the chlorogenic acid + rutin fraction and FG fraction might be associated with alleviating the metabolic abnormalities in obese rats. These results indicate that the BBL extracts, and especially FG and PA, exerted hypolipidemic effects on obese OLETF rats and suggest that an infusion of BBL can be useful as a dietary hypolipidemic component.
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Khalili A, Khosravi MB, Nekooeian AA. The effects of aqueous extract of vaccinium arctostaphylos leaves on blood pressure in renal hypertensive rats. IRANIAN RED CRESCENT MEDICAL JOURNAL 2011; 13:123-7. [PMID: 22737446 PMCID: PMC3371910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2010] [Revised: 07/01/2010] [Accepted: 08/02/2010] [Indexed: 11/24/2022]
Abstract
BACKGROUND The leaves of Vaccinium arctostaphylos (Qare qat) is advocated for the treatment of hypertension in Iran' folk medicine. The objective of was to examine the possible hypotensive activity of aqueous extract of Vaccinium arctostaphylos leaves in rat model of two-kidney, one-clip hypertension. METHODS Rats were subjected to sham operation of the placement of Plexiglass clip on left renal arteries. Four weeks later, renal artery clipped rats were given intravenous injection of normal saline or the extract at 10, 25, or 75 mg/kg, and mean blood pressure and heart rate were measured before and 20, 40 and 60 minutes after vehicle or drug administration. RESULTS Compared to sham group, renal artery clipped groups had a significantly higher mean blood pressure, heart and right kidney weights, lower left kidney weight and significantly indifferent heart rate. Compared to vehicle treatment, the extract at 75 mg/kg, but not at 10 or 25 mg/kg, did reduce the mean blood pressure at 20, 40 and 60 minutes after administration without changing the heart rate. CONCLUSION The findings showed that at a higher dose the extract did have hypotensive activity without changing the heart rate. The exact hypotensive mechanism remains to be investigated.
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Affiliation(s)
- A Khalili
- Department of Pharmacology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - M B Khosravi
- Cardiovascular Pharmacology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran,Department of Anesthesiology, Medical School, Shiraz University of Medical Sciences, Shiraz, Iran
| | - A A Nekooeian
- Department of Pharmacology, Shiraz University of Medical Sciences, Shiraz, Iran,Cardiovascular Pharmacology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran,Correspondence: Ali Akbar Nekooeian, PhD, Department of Pharmacology, Medical School, Shiraz University of Medical Sciences, Shiraz, Iran. Tel.: +98-711-2307591, Fax: +98-711-2307591, E-mail:
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Matsuo Y, Fujita Y, Ohnishi S, Tanaka T, Hirabaru H, Kai T, Sakaida H, Nishizono S, Kouno I. Chemical constituents of the leaves of rabbiteye blueberry (Vaccinium ashei) and characterisation of polymeric proanthocyanidins containing phenylpropanoid units and A-type linkages. Food Chem 2010. [DOI: 10.1016/j.foodchem.2010.01.052] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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