1
|
Goncharov NV, Kovalskaia VA, Romanishin AO, Shved NA, Belousov AS, Tiasto VS, Gulaia VS, Neergheen VS, Rummun N, Liskovykh M, Larionov V, Kouprina N, Kumeiko VV. Novel assay to measure chromosome instability identifies Punica granatum extract that elevates CIN and has a potential for tumor- suppressing therapies. Front Bioeng Biotechnol 2022; 10:989932. [PMID: 36601386 PMCID: PMC9806258 DOI: 10.3389/fbioe.2022.989932] [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: 07/09/2022] [Accepted: 11/22/2022] [Indexed: 12/23/2022] Open
Abstract
Human artificial chromosomes (HACs) have provided a useful tool to study kinetochore structure and function, gene delivery, and gene expression. The HAC propagates and segregates properly in the cells. Recently, we have developed an experimental high-throughput imaging (HTI) HAC-based assay that allows the identification of genes whose depletion leads to chromosome instability (CIN). The HAC carries a GFP transgene that facilitates quantitative measurement of CIN. The loss of HAC/GFP may be measured by flow cytometry or fluorescence scanning microscope. Therefore, CIN rate can be measured by counting the proportion of fluorescent cells. Here, the HAC/GFP-based assay has been adapted to screen anticancer compounds for possible induction or elevation of CIN. We analyzed 24 cytotoxic plant extracts. Punica granatum leaf extract (PLE) indeed sharply increases CIN rate in HT1080 fibrosarcoma cells. PLE treatment leads to cell cycle arrest, reduction of mitotic index, and the increased numbers of micronuclei (MNi) and nucleoplasmic bridges (NPBs). PLE-mediated increased CIN correlates with the induction of double-stranded breaks (DSBs). We infer that the PLE extract contains a component(s) that elevate CIN, making it a candidate for further study as a potential cancer treatment. The data also provide a proof of principle for the utility of the HAC/GFP-based system in screening for natural products and other compounds that elevate CIN in cancer cells.
Collapse
Affiliation(s)
- Nikolay V. Goncharov
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Russian Academy of Sciences, Vladivostok, Russia
- Institute of Life Sciences and Biomedicine, Far Eastern Federal University, Vladivostok, Russia
| | | | | | - Nikita A. Shved
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Russian Academy of Sciences, Vladivostok, Russia
- Institute of Life Sciences and Biomedicine, Far Eastern Federal University, Vladivostok, Russia
| | - Andrei S. Belousov
- Institute of Life Sciences and Biomedicine, Far Eastern Federal University, Vladivostok, Russia
| | - Vladlena S. Tiasto
- Institute of Life Sciences and Biomedicine, Far Eastern Federal University, Vladivostok, Russia
| | - Valeriia S. Gulaia
- Institute of Life Sciences and Biomedicine, Far Eastern Federal University, Vladivostok, Russia
| | - Vidushi S. Neergheen
- Biopharmaceutical Unit, Centre for Biomedical and Biomaterials Research (CBBR), University of Mauritius, Réduit, Mauritius
| | - Nawraj Rummun
- Biopharmaceutical Unit, Centre for Biomedical and Biomaterials Research (CBBR), University of Mauritius, Réduit, Mauritius
| | - Mikhail Liskovykh
- Developmental Therapeutics Branch, National Cancer Institute, NIH, Bethesda, MD, United States
| | - Vladimir Larionov
- Developmental Therapeutics Branch, National Cancer Institute, NIH, Bethesda, MD, United States
| | - Natalay Kouprina
- Developmental Therapeutics Branch, National Cancer Institute, NIH, Bethesda, MD, United States
| | - Vadim V. Kumeiko
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Russian Academy of Sciences, Vladivostok, Russia
- Institute of Life Sciences and Biomedicine, Far Eastern Federal University, Vladivostok, Russia
| |
Collapse
|
2
|
Rummun N, Payne B, Blom van Staden A, Twilley D, Houghton B, Horrocks P, Li WW, Lall N, Bahorun T, Neergheen VS. Pluripharmacological potential of Mascarene endemic plant leaf extracts. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
|
3
|
Rummun N, Serag A, Rondeau P, Ramsaha S, Bourdon E, Bahorun T, Farag MA, Neergheen VS. Antiproliferative activity of Syzygium coriaceum, an endemic plant of Mauritius, with its UPLC-MS metabolite fingerprint: A mechanistic study. PLoS One 2021; 16:e0252276. [PMID: 34061874 PMCID: PMC8168845 DOI: 10.1371/journal.pone.0252276] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 05/14/2021] [Indexed: 01/16/2023] Open
Abstract
Flowering plants from the Syzygium genus have long been used in different ethnomedicinal systems worldwide and have been under scrutiny for their biological activities. Syzygium coriaceum, an endemic plant of Mauritius has been poorly studied for its potential application against cancer. Herein, Syzygium coriaceum leaf extract has been investigated for its anticancer effect against hepatocellular carcinoma (HepG2) cells. The anticancer activity was assessed using cell proliferation assays, flow cytometry, JC-1 mitochondrial membrane potential assay, and the COMET assay. Un-targeted metabolite profiling via ultra-performance liquid chromatography coupled to high-resolution qTOF-MS (UPLC-MS) and aided by molecular networking was employed to identify the crude extract metabolites. S. coriaceum treatment induced a dose-dependent increase in lactate dehydrogenase leakage into the culture media, peaking up to 47% (p ≤ 0.0001), compared to untreated control. Moreover, at 40 μg/mL, S. coriaceum led to 88.1% (p ≤ 0.0001) drop in mitochondrial membrane potential and 5.7% (p ≤ 0.001) increased in the number of the cell population in G0/G1 phase as well as increased (p < 0.05) the proportion of cells undergoing apoptotic/necrotic cell death. More so, at 10 μg/mL, S. coriaceum induced DNA damage which was 19 folds (p < 0.001) higher than that of untreated control cells. Metabolite profiling indicated the presence of 65 metabolites, out of which 59 were identified. Tannins, flavonoids, nitrogenous compounds, and organic acids were the most predominant classes of compounds detected. Our findings showed that the presence of tannins and flavonoids in S. coriaceum leaf extract could account for the multiple mechanisms of actions underlying the antiproliferative effect against HepG2 cells.
Collapse
Affiliation(s)
- Nawraj Rummun
- Faculty of Medicine and Health Sciences, Department of Health Sciences, University of Mauritius, Réduit, Republic of Mauritius
- Biopharmaceutical Unit, Centre for Biomedical and Biomaterials Research, MSIRI Building, University of Mauritius, Réduit, Republic of Mauritius
| | - Ahmed Serag
- Faculty of Pharmacy, Analytical Chemistry Department, Al-Azhar University, Cairo, Egypt
| | - Philippe Rondeau
- Université de La Réunion, INSERM, UMR 1188 Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI), Saint-Denis de La Réunion, France
| | - Srishti Ramsaha
- Faculty of Medicine and Health Sciences, Department of Health Sciences, University of Mauritius, Réduit, Republic of Mauritius
- Biopharmaceutical Unit, Centre for Biomedical and Biomaterials Research, MSIRI Building, University of Mauritius, Réduit, Republic of Mauritius
| | - Emmanuel Bourdon
- Université de La Réunion, INSERM, UMR 1188 Diabète athérothrombose Thérapies Réunion Océan Indien (DéTROI), Saint-Denis de La Réunion, France
| | - Theeshan Bahorun
- Biopharmaceutical Unit, Centre for Biomedical and Biomaterials Research, MSIRI Building, University of Mauritius, Réduit, Republic of Mauritius
| | - Mohamed A. Farag
- Pharmacognosy Department, College of Pharmacy, Cairo University, Kasr el Aini St., P.B., Cairo, Egypt
- Chemistry Department, School of Sciences & Engineering, The American University in Cairo, New Cairo, Egypt
| | - Vidushi S. Neergheen
- Biopharmaceutical Unit, Centre for Biomedical and Biomaterials Research, MSIRI Building, University of Mauritius, Réduit, Republic of Mauritius
| |
Collapse
|
4
|
Sharmeen Jugreet B, Kouadio Ibrahime S, Zengin G, Abdallah HH, Fawzi Mahomoodally M. GC/MS Profiling, In Vitro and In Silico Pharmacological Screening and Principal Component Analysis of Essential Oils from Three Exotic and Two Endemic Plants from Mauritius. Chem Biodivers 2021; 18:e2000921. [PMID: 33594799 DOI: 10.1002/cbdv.202000921] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Accepted: 02/02/2021] [Indexed: 12/11/2022]
Abstract
The chemical and pharmacological profiles of essential oils (EOs) hydrodistilled in yields of 0.03-0.77 % (w/w) from three exotic (Cinnamomum camphora, Petroselinum crispum, and Syzygium samarangense) and two endemic (Pittosporum senacia subsp. senacia and Syzygium coriaceum) medicinal plants were studied. GC-MS/GC-FID analysis of the EOs identified the most dominant components to be myristicin (40.3 %), myrcene (62.2 %), 1,8-cineole (54.0 %), β-pinene (21.3 %) and (E)-β-ocimene (24.4 %) in P. crispum, P. senacia and C. camphora, S. samarangense and S. coriaceum EOs, respectively. All EOs were found to possess anti-amylase (0.70-1.50 mM ACAE/g EO) and anti-tyrosinase (109.35-158.23 mg KAE/g) properties, whereas no glucosidase inhibition was displayed. Only Syzygium EOs acted as dual inhibitors of both acetyl- and butyryl-cholinesterases, while P. senacia and C. camphora EOs inhibited acetylcholinesterase selectively and P. crispum EO was inactive (AChE: 4.64-4.96 mg GALAE/g; BChE: 5.96 and 7.10 mg GALAE/g). Molecular docking revealed 1,8-cineole to present the best binding affinities with butyrylcholinesterase, amylase and tyrosinase, while both myristicin and β-pinene with acetylcholinesterase and finally β-pinene with glucosidase. In vitro antioxidant potency was also demonstrated in different assays (DPPH: 13.52-53.91 mg TE/g, ABTS: 5.49-75.62 mg TE/g; CUPRAC: 45.38-243.21 mg TE/g, FRAP: 42.49-110.64 mg TE/g; and phosphomolybdenum assay: 82.61-160.93 mM TE/g). Principal component analysis revealed the EOs to differ greatly in their bioactivities due to their chemodiversity. This study has unveiled some interesting preliminary pharmacological profiles of the EOs that could be explored for their potential applications as phytotherapeutics.
Collapse
Affiliation(s)
- Bibi Sharmeen Jugreet
- Department of Health Sciences, Faculty of Medicine and Health Sciences, University of Mauritius, Moka, 80837 Réduit, Mauritius
| | | | - Gokhan Zengin
- Department of Biology, Science Faculty, Selcuk University, Campus, 42250, Konya, Turkey
| | - Hassan H Abdallah
- Chemistry Department, College of Education, Salahaddin University-Erbil, 44002, Erbil, Iraq
| | - Mohamad Fawzi Mahomoodally
- Department of Health Sciences, Faculty of Medicine and Health Sciences, University of Mauritius, Moka, 80837 Réduit, Mauritius
| |
Collapse
|
5
|
Zhang K, Meng J, Li X, Tang X, Ma S, Lv Y, Yang S. Noni (Morinda citrifolia L.) wine prevents the oxidative stress and obesity in mice induced by high-fat diet. J Food Biochem 2020; 44:e13460. [PMID: 32902870 DOI: 10.1111/jfbc.13460] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 07/09/2020] [Accepted: 08/05/2020] [Indexed: 12/17/2022]
Abstract
Noni (Morinda citrifolia L.) is rich in polyphenols, flavonoids, terpenoids, and iridoids. However, its bad taste and smell make noni fruit unsuitable for consumption. After fermentation, noni wine becomes free from the undesirable smell. Nevertheless, it is still unclear whether processed noni could retain its original nutrients and effects. Therefore, we conducted a series of evaluations on the nutritional composition and efficacy of noni wine. Our results showed that the polyphenol, flavonoid, and vitamin C contents in noni wine were 558.80, 234.42, and 0.30 mg/L, respectively. Our animal experiments showed that 40 ml kg-1 day-1 noni wine could reduce bodyweight, as well as the levels of body fat, serum triglycerides, total cholesterol, and low-density lipoprotein, while it simultaneously increased the amount of energy expenditure and activity, and improved the systemic antioxidant capacity in mice following a high-fat diet. The results of the gene expression and western blot analyses showed that 40 ml kg-1 day-1 noni wine could regulate the Nrf2 pathway and improve the antioxidant enzyme gene expression in mice maintained on a high-fat diet, thereby improving body lipid metabolism, reducing fatty acid synthesis, and promoting fatty acid β-oxidation. Our study indicated that drinking 40 ml kg-1 day-1 noni wine could effectively prevent high-fat diet-induced oxidative stress and obesity in mice. PRACTICAL APPLICATIONS: Noni fruit is rich in nutrients but its bad smell and hardship of processing make its commercialization difficult. Previous studies mainly focused on fresh noni juice and its primary processed products, while few noni products, of poor taste and low quality, are available in the market. Therefore, the fruit wine with both the nutritive values and the special flavor of noni has broad market prospects. Our work provides a valuable reference for the commercialization of noni wine.
Collapse
Affiliation(s)
- Kai Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Jun Meng
- Zhuzhou Qianjin Pharmacy Co., Ltd., Hunan, China
| | - Xiaojuan Li
- Zhuzhou Qianjin Pharmacy Co., Ltd., Hunan, China
| | - Xue Tang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Shuhua Ma
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Yipin Lv
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Shaojun Yang
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| |
Collapse
|
6
|
Sanna C, Maxia A, Fenu G, Loi MC. So Uncommon and so Singular, but Underexplored: An Updated Overview on Ethnobotanical Uses, Biological Properties and Phytoconstituents of Sardinian Endemic Plants. PLANTS (BASEL, SWITZERLAND) 2020; 9:E958. [PMID: 32751394 PMCID: PMC7465485 DOI: 10.3390/plants9080958] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 07/25/2020] [Accepted: 07/27/2020] [Indexed: 12/12/2022]
Abstract
The last decades have recorded an increase of plant-based drug discovery processes. Indeed, natural products possess a superior chemical diversity as compared to synthetic ones, leading to a renewal in searching for new therapeutic agents from the plant kingdom. In particular, since the structural variety of natural compounds reflects the biodiversity of their source organisms, regions of the world with high biodiversity and endemism deserve particular interest. In this context, Sardinia Island (Italy), with 290 endemic taxa (12% of the total flora), is expected to provide unique and structurally diverse phytochemicals for drug development. Several research groups built up a large program dedicated to the analysis of Sardinian endemic species, highlighting their peculiar features, both in respect of phytochemical and biological profiles. On this basis, the aim of this review is to provide an up-to-date and comprehensive overview on ethnobotanical uses, biological properties and phytoconstituents of Sardinian endemic plants in order to support their beneficial potential and to provide input for future investigations. We documented 152 articles published from 1965 to June 2020 in which a broad range of biological activities and the identification of previously undescribed compounds have been reported, supporting their great value as sources of therapeutic agents.
Collapse
Affiliation(s)
- Cinzia Sanna
- Department of Life and Environmental Sciences, University of Cagliari, Via Sant’Ignazio da Laconi 13, 09123 Cagliari, Italy; (A.M.); (G.F.); (M.C.L.)
- Co.S.Me.Se—Consorzio per lo Studio dei Metaboliti Secondari, Via Sant’Ignazio da Laconi 13, 09123 Cagliari, Italy
| | - Andrea Maxia
- Department of Life and Environmental Sciences, University of Cagliari, Via Sant’Ignazio da Laconi 13, 09123 Cagliari, Italy; (A.M.); (G.F.); (M.C.L.)
- Co.S.Me.Se—Consorzio per lo Studio dei Metaboliti Secondari, Via Sant’Ignazio da Laconi 13, 09123 Cagliari, Italy
| | - Giuseppe Fenu
- Department of Life and Environmental Sciences, University of Cagliari, Via Sant’Ignazio da Laconi 13, 09123 Cagliari, Italy; (A.M.); (G.F.); (M.C.L.)
| | - Maria Cecilia Loi
- Department of Life and Environmental Sciences, University of Cagliari, Via Sant’Ignazio da Laconi 13, 09123 Cagliari, Italy; (A.M.); (G.F.); (M.C.L.)
| |
Collapse
|
7
|
Mahato N, Sinha M, Sharma K, Koteswararao R, Cho MH. Modern Extraction and Purification Techniques for Obtaining High Purity Food-Grade Bioactive Compounds and Value-Added Co-Products from Citrus Wastes. Foods 2019; 8:E523. [PMID: 31652773 PMCID: PMC6915388 DOI: 10.3390/foods8110523] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 10/11/2019] [Accepted: 10/16/2019] [Indexed: 12/27/2022] Open
Abstract
Citrus contains a range of highly beneficial bioactive compounds, such as polyphenols, carotenoids, and vitamins that show antimicrobial and antioxidant properties and help in building the body's immune system. On consumption or processing, approximately 50% of the fruit remains as inedible waste, which includes peels, seeds, pulp, and segment residues. This waste still consists of substantial quantities of bioactive compounds that cause environmental pollution and are harmful to the ecosystem because of their high biological oxygen demand. In recent years, citrus cultivation and the production of processed foods have become a major agricultural industry. In addition to being a substantial source of economy, it is an ideal and sustainable and renewable resource for obtaining bioactive compounds and co-products for food and pharmaceutical industries. In the present article, the various methods of extraction, conventional and modern, as well as separation and isolation of individual bioactive compounds from the extraction mixture and their determination have been reviewed. This article presents both aspects of extraction methods, i.e., on a small laboratory scale and on an industrial mass scale. These methods and techniques have been extensively and critically reviewed with anticipated future perspectives towards the maximum utilization of the citrus waste.
Collapse
Affiliation(s)
- Neelima Mahato
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea.
| | - Mukty Sinha
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research, Ahmedabad, Palej, Gandhinagar 382 355, India.
| | - Kavita Sharma
- Department of Chemistry, Idaho State University, Pocatello, ID 83209, USA.
| | - Rakoti Koteswararao
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research, Ahmedabad, Palej, Gandhinagar 382 355, India.
| | - Moo Hwan Cho
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea.
| |
Collapse
|
8
|
Ramos AS, Mar JM, da Silva LS, Acho LD, Silva BJP, Lima ES, Campelo PH, Sanches EA, Bezerra JA, Chaves FCM, Campos FR, Machado MB. Pedra-ume caá fruit: An Amazon cherry rich in phenolic compounds with antiglycant and antioxidant properties. Food Res Int 2019; 123:674-683. [DOI: 10.1016/j.foodres.2019.05.042] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 05/14/2019] [Accepted: 05/30/2019] [Indexed: 12/11/2022]
|
9
|
Barauna SC, Delwing-Dal Magro D, Brueckheimer MB, Maia TP, Sala GABN, Döhler AW, Harger MC, de Melo DFM, de Gasper AL, Alberton MD, Siebert DA, Micke GA, de Albuquerque CAC, Delwing-De Lima D. Antioxidant and antidepressant-like effects of Eugenia catharinensis D. Legrand in an animal model of depression induced by corticosterone. Metab Brain Dis 2018; 33:1985-1994. [PMID: 30136092 DOI: 10.1007/s11011-018-0306-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 08/12/2018] [Indexed: 01/24/2023]
Abstract
This work investigated the antioxidant and antidepressant-like effects of ethyl acetate extract from Eugenia catharinensis in mice treated with corticosterone (20 mg/Kg). The animals received saline or corticosterone (21 days) and, in the last 7 days, they were treated with the extract (50, 125, 200 or 250 mg/Kg) or vehicle. After 24 h, the mice were submitted to the open field and forced swimming tests, after which the hippocampus and cerebral cortex were removed. Our results showed that the extract decreased the immobility time of mice in the forced swimming test and that the extract was able to reverse the effect caused by corticosterone. Corticosterone pre-treatment generated oxidative stress, altering antioxidant enzymes in the nervous tissue. The extract increased the catalase and superoxide dismutase activities and reversed the effects of corticosterone. In the hippocampus, the extract increased superoxide dismutase activity and reversed the increase in catalase activity elicited by corticosterone. We propose that the effects elicited by the Eugenia catharinensis are dependent on the presence of phenolic compounds (gallic acid, protocatechuic acid, syringic acid, 4-hydroxy methylbenzoic acid, chlorogenic acid, salicylic acid, caffeic acid, vanillic acid, p-coumaric acid, isoquercetin, rutin, ferulic acid, aromadendrin, galangin and apigenin) in this extract, as demonstrated by HPLC-ESI-MS/MS.
Collapse
Affiliation(s)
- Sara Cristiane Barauna
- Programa de Pós-Graduação em Saúde e Meio Ambiente, Universidade da Região de Joinville- UNIVILLE, Rua Paulo Malschitzki,10- Zona Industrial Norte, CEP 89201-972, Joinville, SC, Brazil
- Departamento de Ciências Naturais, Centro de Ciências Exatas e Naturais, Universidade Regional de Blumenau, Rua Antônio daVeiga, 140, CEP 89030-203, Blumenau, SC, Brazil
| | - Débora Delwing-Dal Magro
- Departamento de Ciências Naturais, Centro de Ciências Exatas e Naturais, Universidade Regional de Blumenau, Rua Antônio daVeiga, 140, CEP 89030-203, Blumenau, SC, Brazil
| | - Maitê Beatriz Brueckheimer
- Departamento de Medicina, Universidade da Região de Joinville- UNIVILLE, Rua Paulo Malschitzki, 10- Zona Industrial Norte, CEP 89201-972, Joinville, SC, Brazil
| | - Thayná P Maia
- Departamento de Medicina, Universidade da Região de Joinville- UNIVILLE, Rua Paulo Malschitzki, 10- Zona Industrial Norte, CEP 89201-972, Joinville, SC, Brazil
| | - Geraldo Antonio Bunick Neto Sala
- Departamento de Medicina, Universidade da Região de Joinville- UNIVILLE, Rua Paulo Malschitzki, 10- Zona Industrial Norte, CEP 89201-972, Joinville, SC, Brazil
| | - André Wolff Döhler
- Departamento de Ciências Naturais, Centro de Ciências Exatas e Naturais, Universidade Regional de Blumenau, Rua Antônio daVeiga, 140, CEP 89030-203, Blumenau, SC, Brazil
| | - Mateus Campestrini Harger
- Departamento de Ciências Naturais, Centro de Ciências Exatas e Naturais, Universidade Regional de Blumenau, Rua Antônio daVeiga, 140, CEP 89030-203, Blumenau, SC, Brazil
| | - Dayse Fabiane Machado de Melo
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Regional de Blumenau, Rua Antônio da Veiga, 140, CEP 89012-900, Blumenau, SC, Brazil
| | - André Luís de Gasper
- Departamento de Ciências Naturais, Centro de Ciências Exatas e Naturais, Universidade Regional de Blumenau, Rua Antônio daVeiga, 140, CEP 89030-203, Blumenau, SC, Brazil
| | - Michele Debiasi Alberton
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Regional de Blumenau, Rua Antônio da Veiga, 140, CEP 89012-900, Blumenau, SC, Brazil
| | - Diogo Alexandre Siebert
- Departamento de Química, Centro de Ciências Físicas e Matemáticas, Universidade Federal de Santa Catarina, Campus Trindade, CEP 88040-900, Florianópolis, SC, Brazil
| | - Gustavo Amadeu Micke
- Departamento de Química, Centro de Ciências Físicas e Matemáticas, Universidade Federal de Santa Catarina, Campus Trindade, CEP 88040-900, Florianópolis, SC, Brazil
| | - Cláudia Almeida Coelho de Albuquerque
- Departamento de Ciências Naturais, Centro de Ciências Exatas e Naturais, Universidade Regional de Blumenau, Rua Antônio daVeiga, 140, CEP 89030-203, Blumenau, SC, Brazil
| | - Daniela Delwing-De Lima
- Programa de Pós-Graduação em Saúde e Meio Ambiente, Universidade da Região de Joinville- UNIVILLE, Rua Paulo Malschitzki,10- Zona Industrial Norte, CEP 89201-972, Joinville, SC, Brazil.
- Departamento de Medicina, Universidade da Região de Joinville- UNIVILLE, Rua Paulo Malschitzki, 10- Zona Industrial Norte, CEP 89201-972, Joinville, SC, Brazil.
| |
Collapse
|
10
|
Rajabi H, Noroozifar M. Modified Graphite Paste Electrode with Lewatit FO36 Nanoresin/Multi-Walled Carbon Nanotubes for Determination of Quercetin. RUSS J ELECTROCHEM+ 2018. [DOI: 10.1134/s1023193518030084] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
|
11
|
Rummun N, Neergheen-Bhujun VS, Pynee KB, Baider C, Bahorun T. The role of endemic plants in Mauritian traditional medicine - Potential therapeutic benefits or placebo effect? JOURNAL OF ETHNOPHARMACOLOGY 2018; 213:111-117. [PMID: 29030263 DOI: 10.1016/j.jep.2017.10.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 10/07/2017] [Accepted: 10/07/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The Mauritian endemic flora has been recorded to be used as medicines for nearly 300 years. Despite acceptance of these endemic plants among the local population, proper documentation of their therapeutic uses is scarce. This review aims at summarising documented traditional uses of Mauritian endemic species with existing scientific data of their alleged bioactivities, in a view to appeal for more stringent validations for their ethnomedicinal uses. MATERIAL AND METHODS A comprehensive bibliographic investigation was carried out by analysing published books on ethnopharmacology and international peer-reviewed papers via scientific databases namely ScienceDirect and PubMed. The keywords "Mauritius endemic plants" and "Mauritius endemic medicinal plants" were used and articles published from 1980 to 2016 were considered. 675 works of which 12 articles were filtered which documented the ethnomedicinal uses and 22 articles reported the biological activities of Mauritian endemic plants. Only materials published in English or French language were included in the review. Available data on the usage of Mauritian endemic plants in traditional medicine and scientific investigation were related. RESULTS AND DISCUSSION We documented 87 taxa of Mauritian endemic plants for their medicinal value. Endemic plants are either used as part of complex herbal formulations or singly, and are prescribed by herbalists to mitigate a myriad of diseases from metabolic disorders, dermatological pathologies, arthritis to sexually transmissible diseases. However, these species have undergone a limited consistent evaluation to validate their purported ethnomedicinal claims. As the World Health Organization Traditional Medicine Strategy 2014-2023 emphasises on moving traditional medicine into mainstream medicine on an equally trusted footage, the re-evaluation and modernization of Mauritius cultural heritage become necessary. CONCLUSIONS With a consumer-driven 'return to nature', scientific validation and valorization of the herbal remedies, including efficacy and safety are, therefore, important. This review reports the scarcity of research on validating the efficacy and safety of medicinal endemic plants. This calls for the use of optimised methodologies to investigate the claims of therapeutic effects resulting from the use of these traditional medicines.
Collapse
Affiliation(s)
- Nawraj Rummun
- ANDI Centre of Excellence for Biomedical and Biomaterials Research, University of Mauritius, Réduit, Mauritius; Department of Health Sciences, Faculty of Science University of Mauritius, Réduit, Mauritius
| | - Vidushi S Neergheen-Bhujun
- ANDI Centre of Excellence for Biomedical and Biomaterials Research, University of Mauritius, Réduit, Mauritius; Department of Health Sciences, Faculty of Science University of Mauritius, Réduit, Mauritius.
| | - Kersley B Pynee
- The Mauritius Herbarium, Agricultural Services, Ministry of Agro-Industry and Food Security, Réduit, Mauritius
| | - Cláudia Baider
- The Mauritius Herbarium, Agricultural Services, Ministry of Agro-Industry and Food Security, Réduit, Mauritius
| | - Theeshan Bahorun
- ANDI Centre of Excellence for Biomedical and Biomaterials Research, University of Mauritius, Réduit, Mauritius.
| |
Collapse
|
12
|
Sharma K, Mahato N, Lee YR. Extraction, characterization and biological activity of citrus flavonoids. REV CHEM ENG 2018. [DOI: 10.1515/revce-2017-0027] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Abstract
Citrus is one of the largest and most popular fruit crops commercially grown across the globe. It is not only important in terms of economy but is also popular for its nutritional benefits to human and farm animals. Citrus is available in several varieties, all with attractive colors. It is consumed either fresh or in processed form. After processing, approximately 50% of the fruit remains unconsumed and discarded as waste. The latter includes fruit pith residue, peels and seeds. Direct disposal of these wastes to the environment causes serious problems as these contain bioactive compounds. Release of these bioactive compounds to the open landfills cause bad odor and spread of diseases, and disposal to water bodies or seepage to the underground water table deteriorates water quality and harms aquatic life. In this regard, a number of research are being focused on the development of better reuse methods to obtain value-added phytochemicals as well as for safe disposal. The important phytochemicals obtained from citrus include essential oils, flavonoids, citric acid, pectin, etc., which have now become popular topics in industrial research, food and synthetic chemistry. The present article reviews recent advances in exploring the effects of flavonoids obtained from citrus wastes, the extraction procedure and their usage in view of various health benefits.
Collapse
Affiliation(s)
- Kavita Sharma
- School of Chemical Engineering , Yeungnam University , Gyeongsan 38541 , Republic of Korea
| | - Neelima Mahato
- School of Chemical Engineering , Yeungnam University , Gyeongsan 38541 , Republic of Korea
| | - Yong Rok Lee
- School of Chemical Engineering , Yeungnam University , Gyeongsan 38541 , Republic of Korea
| |
Collapse
|
13
|
Ola-mudathir F, Abdul-Wahab A, Moshood A, Obuotor E. Comparative evaluation of antioxidant properties of methanol extracts of allium cepa bulb, allium cepa bulb peels and allium fistulosum. KRAGUJEVAC JOURNAL OF SCIENCE 2018. [DOI: 10.5937/kgjsci1840131o] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
|
14
|
Effect of Selected Plant Phenolics on Fe 2+-EDTA-H₂O₂ System Mediated Deoxyribose Oxidation: Molecular Structure-Derived Relationships of Anti- and Pro-Oxidant Actions. Molecules 2016; 22:molecules22010059. [PMID: 28042856 PMCID: PMC6155846 DOI: 10.3390/molecules22010059] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Revised: 12/17/2016] [Accepted: 12/24/2016] [Indexed: 01/31/2023] Open
Abstract
In the presence of transition metal ions and peroxides, polyphenols, well-known dietary antioxidants, can act as pro-oxidants. We investigated the effect of 13 polyphenols and their metabolites on oxidative degradation of deoxyribose by an •OH generating Fenton system (Fe2+-ethylenediaminetetraacetic acid (EDTA)-H2O2). The relationship between phenolics pro-oxidant/anti-oxidant effects and their molecular structure was analyzed using multivariate analysis with multiple linear regression and a backward stepwise technique. Four phenolics revealed a significant inhibitory effect on OH-induced deoxyribose degradation, ranging from 54.4% ± 28.6% (3,4-dihydroxycinnamic acid) to 38.5% ± 10.4% (catechin) (n = 6), correlating with the number of –OH substitutions (r = 0.58). Seven phenolics augmented the oxidative degradation of deoxyribose with the highest enhancement at 95.0% ± 21.3% (quercetin) and 60.6% ± 12.2% (phloridzin). The pro-oxidant effect correlated (p < 0.05) with the number of –OH groups (r = 0.59), and aliphatic substitutes (r = −0.22) and weakly correlated with the occurrence of a catechol structure within the compound molecule (r = 0.17). Selective dietary supplementation with phenolics exhibiting pro-oxidant activity may increase the possibility of systemic oxidative stress in patients treated with medications containing chelating properties or those with high plasma concentrations of H2O2 and non-transferrin bound iron.
Collapse
|
15
|
Rajabian A, Hassanzadeh Khayyat M, Emami SA, Tayarani-Najaran Z, Rahimzadeh Oskooie R, Asili J. Phytochemical Evaluation and Antioxidant Activity of Essential Oil, and Aqueous and Organic Extracts of Artemisia dracunculus. Jundishapur J Nat Pharm Prod 2016. [DOI: 10.17795/jjnpp-32325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
16
|
Phytochemical Evaluation and Antioxidant Activity of Essential Oil, and Aqueous and Organic Extracts of Artemisia dracunculus. Jundishapur J Nat Pharm Prod 2016. [DOI: 10.5812/jjnpp.32325] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
17
|
Ramsaha S, Neergheen-Bhujun VS, Verma S, Kumar A, Bharty RK, Chaudhary AK, Sharma P, Singh RK, Huzar Futty Beejan P, Kyung-Sun K, Bahorun T. Modulation of hepatocarcinogenesis in N-methyl-N-nitrosourea treated Balb/c mice by mushroom extracts. Food Funct 2016; 7:594-609. [PMID: 26574664 DOI: 10.1039/c5fo00870k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The hepatoprotective potential of edible mushrooms from Mauritius, namely Pleurotus sajor-caju and Agaricus bisporus was evaluated using an N-methyl-N-nitrosourea (MNU)-induced hepatocarcinogenesis Balb/c mice model. Mushroom extracts restored normal weight in MNU treated mice over a 3 month supplementation period. Blood parameter analyses indicated a clear modulation of hemoglobin concentration, leukocyte, platelet, lymphocyte, neutrophil, monocyte and eosinophil counts in MNU-induced mice (p < 0.05). Mushroom extract supplementation effectively reduced oxidative damage in MNU-primed mice, which was marked by a significant decrease in the extent of lipid peroxidation (p < 0.05) and a concomitant increase in the enzymatic antioxidant levels, primarily catalase, superoxide dismutase, glutathione reductase and peroxidase, and FRAP values (p < 0.05). DNA protective effects of the extracts were confirmed by Raman spectroscopy, where, the MNU-DNA interaction, as evidenced by an intense peak at 1254 cm(-1), was normalized. The findings demonstrate hepatoprotective, immunomodulatory and anti-carcinogenic effects and suggest the use of mushrooms as potential dietary prophylactics in cancer chemoprevention.
Collapse
Affiliation(s)
- Srishti Ramsaha
- Department of Health Sciences, Faculty of Science, University of Mauritius, Réduit, Republic of Mauritius. and ANDI Centre of Excellence for Biomedical and Biomaterials Research, CBBR, Building, MSIRI, University of Mauritius, Réduit, Republic of Mauritius.
| | - Vidushi S Neergheen-Bhujun
- Department of Health Sciences, Faculty of Science, University of Mauritius, Réduit, Republic of Mauritius. and ANDI Centre of Excellence for Biomedical and Biomaterials Research, CBBR, Building, MSIRI, University of Mauritius, Réduit, Republic of Mauritius.
| | - Shalini Verma
- Institute of Biosciences and Biotechnology, Chhatrapati Shahuji Maharaj University, Kanpur, Uttar Pradesh, India
| | - Ashok Kumar
- Deen Dayal Upadhyay Gorakhpur University, Gorakhpur, Uttar Pradesh, India
| | - Rahul Kumar Bharty
- Institute of Biosciences and Biotechnology, Chhatrapati Shahuji Maharaj University, Kanpur, Uttar Pradesh, India
| | - Amit Kumar Chaudhary
- Institute of Biosciences and Biotechnology, Chhatrapati Shahuji Maharaj University, Kanpur, Uttar Pradesh, India
| | - Poornima Sharma
- Department of Physics, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Ranjan Kumar Singh
- Department of Physics, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Priya Huzar Futty Beejan
- Mushroom Unit, Food and Agricultural Research and Extension Institute, La Brasserie, Republic of Mauritius
| | - Kang Kyung-Sun
- Department of Veterinary Public Health, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - Theeshan Bahorun
- ANDI Centre of Excellence for Biomedical and Biomaterials Research, CBBR, Building, MSIRI, University of Mauritius, Réduit, Republic of Mauritius.
| |
Collapse
|
18
|
García-Varela R, Fajardo Ramírez OR, Serna-Saldivar SO, Altamirano J, Cardineau GA. Cancer cell specific cytotoxic effect of Rhoeo discolor extracts and solvent fractions. JOURNAL OF ETHNOPHARMACOLOGY 2016; 190:46-58. [PMID: 27235722 DOI: 10.1016/j.jep.2016.05.051] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 05/20/2016] [Accepted: 05/21/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Traditional or folk medicine has led to the discovery of important bioactive substances used in several health-related areas. Phytochemicals in Rhoeo discolor (R. discolor) extracts have proven to have important cancer cell specific cytotoxic activity. In the present research, we determined the cytotoxic effect of extracts of R. discolor, a plant commonly used in Mexico for both medicinal and ornamental purposes. AIM OF THE STUDY We evaluated the cytotoxic effects against three representative human cancer cell lines: HT-29 colon cancer, Hep-G2 liver cancer and PC-3 prostate cancer cell lines, as well as a control fibroblast cell line NIH 3T3. MATERIALS AND METHODS Ten different crude extracts were tested along with fractions derived from the five most bioactive crude extracts. Analytical data, HPLC-MS-TOF, revealed a high content of phenolic compounds such as anthocyanins, ferulic, vanillic, chlorogenic and p-coumaric acid in the extracts. Phenolic compounds have previously been reported as health beneficial with antioxidant and potential cancer specific cytotoxic effects. RESULTS Studies revealed that low concentrations of these crude bioactive extracts (10µg/ml) and their fractions (50µg/ml) were effective as cancer specific cytotoxic agents, since they caused a significant proliferation inhibition on cancer cell lines (up to 94.2% in HT-29, 92.9% in Hep-G2 and 61.8% in PC-3 of apoptosis induction) with little harm to the control cell line (no higher than 28.3% apoptosis induction), and, importantly, the most effective extracts were mainly water, methanol and ethanol based. CONCLUSIONS These results suggest that a diet containing these compounds may function as a medical aid or chemoprotective.
Collapse
Affiliation(s)
- Rebeca García-Varela
- Centro de Biotecnología FEMSA, Tecnológico de Monterrey, Campus Monterrey, Av. Eugenio Garza Sada 2501 Sur, C.P. 64849 Monterrey, NL, México; Centro de Agrobiotecnología, Tecnológico de Monterrey, Campus Monterrey, Av. Eugenio Garza Sada 2501 Sur, C.P. 64849 Monterrey, NL, México
| | - Oscar Raúl Fajardo Ramírez
- Centro de Innovación y Transferida en Salud, Tecnológico de Monterrey, Campus Monterrey, Av. Morones Prieto No. 3000 Pte., Col. Los Doctores, C.P. 64710 Monterrey, NL, México
| | - Sergio O Serna-Saldivar
- Centro de Biotecnología FEMSA, Tecnológico de Monterrey, Campus Monterrey, Av. Eugenio Garza Sada 2501 Sur, C.P. 64849 Monterrey, NL, México; Instituto de Cardiología y Medicina Vascular, Escuela de Medicina, Tecnológico de Monterrey, Campus Monterrey, Batallón San Patricio 112 Col. Valle de San Agustín CP 66278, San Pedro Garza García, Nuevo León, México
| | - Julio Altamirano
- Instituto de Cardiología y Medicina Vascular, Escuela de Medicina, Tecnológico de Monterrey, Campus Monterrey, Batallón San Patricio 112 Col. Valle de San Agustín CP 66278, San Pedro Garza García, Nuevo León, México
| | - Guy A Cardineau
- Centro de Biotecnología FEMSA, Tecnológico de Monterrey, Campus Monterrey, Av. Eugenio Garza Sada 2501 Sur, C.P. 64849 Monterrey, NL, México; Centro de Agrobiotecnología, Tecnológico de Monterrey, Campus Monterrey, Av. Eugenio Garza Sada 2501 Sur, C.P. 64849 Monterrey, NL, México.
| |
Collapse
|
19
|
Ruhomally Z, Somanah J, Bahorun T, Neergheen-Bhujun VS. Morinda citrifolia L. fruit extracts modulates H2O2-induced oxidative stress in human liposarcoma SW872 cells. J Tradit Complement Med 2015; 6:299-304. [PMID: 27419097 PMCID: PMC4936763 DOI: 10.1016/j.jtcme.2015.09.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Revised: 08/06/2015] [Accepted: 09/15/2015] [Indexed: 11/26/2022] Open
Abstract
Morinda citrifolia L. commonly known as noni is used by the pharmaceutical and cosmetic industries due to the plethora of pharmacological activities of its metabolites. In Mauritius, the fruits of M. citrifolia are used in folk medicine against a number of indications. The present study aimed at evaluating the antioxidant activity of ripe and unripe noni fruit at both biochemical and cellular levels. Using an array of established assay systems, the fruit antioxidant propensity was assessed in terms of its radical scavenging, iron reducing and metal chelating potentials. Ascorbic acid, total phenolic and total flavonoid contents of the fruits were also determined. The ascorbic acid content of ripe noni was 76.24 ± 1.13 mg/100 g while total phenolics of ripe and unripe fruit extracts were 748.40 ± 8.85 μg and 770.34 ± 2.27 μg GAE g−1 FW respectively. Both the ripe and unripe extracts of M. citrifolia were potent scavengers of nitric oxide, superoxide and hydroxyl radicals. The ferric reducing capacity ranged from 11.26 ± 0.33 to 11.90 ± 0.20 mM Fe2+ g−1 FW while the IC50 values for the iron (II) chelating power were 0.50 ± 0.01 and 1.74 ± 0.01 g FW/mL for the ripe and unripe fruit extracts respectively. Cellular studies additionally demonstrated that noni were able to dose-dependently counteract accumulation of reactive oxygen species (ROS)-induced oxidative stress, a potential obesogenic factor within human liposarcoma SW872 cells as well as significantly restore cell death within the concentration range of 0.106–0.813 g/mL. Results reported herein suggest noni as an interesting source of prophylactic antioxidants modulated by its polyphenol composition.
Collapse
Affiliation(s)
- Z Ruhomally
- Department of Health Sciences, Faculty of Science, University of Mauritius, Réduit 80837, Republic of Mauritius
| | - J Somanah
- ANDI Centre of Excellence for Biomedical and Biomaterials Research (CBBR), MSIRI Building, University of Mauritius, Réduit 80837, Republic of Mauritius
| | - T Bahorun
- ANDI Centre of Excellence for Biomedical and Biomaterials Research (CBBR), MSIRI Building, University of Mauritius, Réduit 80837, Republic of Mauritius
| | - V S Neergheen-Bhujun
- Department of Health Sciences, Faculty of Science, University of Mauritius, Réduit 80837, Republic of Mauritius; ANDI Centre of Excellence for Biomedical and Biomaterials Research (CBBR), MSIRI Building, University of Mauritius, Réduit 80837, Republic of Mauritius
| |
Collapse
|
20
|
Mazuti Silva SM, Gasca Silva CA, Fonseca-Bazzo YM, Magalhães PO, Silveira D. EUGENIA DYSENTERICA MART. EX DC. (CAGAITA): PLANTA BRASILEIRA COM POTENCIAL TERAPÊUTICO. ACTA ACUST UNITED AC 2015. [DOI: 10.14450/2318-9312.v27.e1.a2015.pp49-95] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
O Brasil possui uma das maiores diversidades florísticas do mundo, com vários biomas de características diversas. Esses biomas são uma rica fonte de espécies vegetais utilizadas pelos habitantes locais como alimento e/ou para fins medicinais. Em 2006 foi publicada a Politica Nacional de Plantas Medicinais e Fitoterápicos (PNPMF) que estabeleceu diretrizes de atuação do Governo Federal na área, com o objetivo de fomentar o desenvolvimento industrial e tecnológico e estimular o uso sustentável da biodiversidade nacional. O Programa Nacional de Plantas Medicinais e Fitoterápicos, por sua vez, estabeleceu as ações dos diversos parceiros, para garantir o acesso, o desenvolvimento tecnológio e o uso de plantas medicinais e fitoterápicos de forma segura, eficaz e com qualidade. Eugenia dysenterica Mart ex DC é uma espécie brasileira encontrada no bioma Cerrado e utilizada como alimento e para fins medicinais. Assim, no sentido de contribuir para a PNPMF, foi elaborada uma monografia mostrando os avanços nos estudos sobre essa espécie, potencialmente útil para no desenvolvimento de fitoterápico genuinamente nacional.
Collapse
|
21
|
Karar MGE, Pletzer D, Jaiswal R, Weingart H, Kuhnert N. Identification, characterization, isolation and activity against Escherichia coli of quince (Cydonia oblonga) fruit polyphenols. Food Res Int 2014. [DOI: 10.1016/j.foodres.2013.10.040] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
22
|
Neergheen-Bhujun VS, Munogee N, Coolen V. Antioxidant and anti-inflammatory efficacies of polyherbal formulations and elixirs traditionally used in Mauritius for the treatment of rheumatoid arthritis. J Herb Med 2014. [DOI: 10.1016/j.hermed.2013.11.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
23
|
Brunchault RV, Soulange JG, Sanmukhiya VMR, Sevathian JC. Molecular and bioactive profiling of selected Eugenia species from Mauritius Island. INTERNATIONAL JOURNAL OF PLANT BIOLOGY 2014. [DOI: 10.4081/pb.2014.4728] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The <em>Eugenia</em> genus is comprised of about 1011 species which share similar features resulting in the complexity of its taxonomy and nomenclature. <em>E. crassipetala, E. kanakana, E. tinifolia</em> and two undescribed <em>Eugenia</em> <em>species</em> all medicinal and endemic to Mauritius Islands were characterized using their phytochemical, bioactive and molecular profile. Biological activity was assessed using the broth microdilution assay and the DPPH assay. Significant minimal inhibitory concentration values of <em>E. crassipetala</em> against <em>E. coli</em> (1.56 mg/mL), <em>E. kanakana</em> against <em>P. mirabilis</em> (0.55 mg/mL) and <em>E. spp</em> (small) against <em>S. aureus</em> (0.43 mg/mL) validates the antibacterial ability of these plant extracts and could be attributed to their high content of antioxidants (flavonoids and phenols). Genetic diversity among these five species was assessed by amplification of genomic DNA using 60 RAPD and 25 ISSR markers. Hierarchical cluster analysis validates the uniqueness of each <em>Eugenia</em> species with <em>E. crassipetala</em> and <em>E. tinifolia</em> forming a separate cluster. Comparative analysis of phytochemical composition and bioactivity correlate with the branching pattern of the species in the dendogram.
Collapse
|
24
|
A novel voltammetric sensor based on gold nanoparticles involved in p-aminothiophenol functionalized multi-walled carbon nanotubes: Application to the simultaneous determination of quercetin and rutin. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2013.12.028] [Citation(s) in RCA: 225] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
25
|
Neuroprotective Effect of Aqueous Extract of Selaginella delicatula as Evidenced by Abrogation of Rotenone-Induced Motor Deficits, Oxidative Dysfunctions, and Neurotoxicity in Mice. Cell Mol Neurobiol 2013; 33:929-42. [DOI: 10.1007/s10571-013-9959-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Accepted: 06/27/2013] [Indexed: 12/21/2022]
|
26
|
Bioactivity of Nonedible Parts of Punica granatum L.: A Potential Source of Functional Ingredients. INTERNATIONAL JOURNAL OF FOOD SCIENCE 2013; 2013:602312. [PMID: 26904607 PMCID: PMC4745514 DOI: 10.1155/2013/602312] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2013] [Accepted: 06/10/2013] [Indexed: 11/26/2022]
Abstract
Punica granatum L. has a long standing culinary and medicinal traditional use in Mauritius.
This prompted a comparative study to determine the bioefficacy of the flower, peel, leaf, stem, and seed extracts of the Mauritian P. granatum.
The flower and peel extracts resulting from organic solvent extraction exhibited strong antioxidant activities which correlated with the high levels of total phenolics, flavonoids, and proanthocyanidins. The peel extract had the most potent scavenging capacity reflected by high Trolox equivalent antioxidant capacity value (5206.01 ± 578.48 μmol/g air dry weight), very low IC50 values for hypochlorous acid (0.004 ± 0.001 mg air dry weight/mL), and hydroxyl radicals scavenging (0.111 ± 0.001 mg air dry weight/mL). Peel extracts also significantly inhibited S. mutans (P < 0.001), S. mitis (P < 0.001), and L. acidophilus (P < 0.05) growth compared to ciprofloxacin. The flower extract exhibited high ferric reducing, nitric oxide scavenging, and iron (II) ions chelation and significantly inhibited microsomal lipid peroxidation. Furthermore, it showed a dose-dependent inhibition of xanthine oxidase with an IC50 value of 0.058 ± 0.011 mg air dry weight/mL. This study showed that nonedible parts of cultivated pomegranates, that are generally discarded, are bioactive in multiassay systems thereby suggesting their potential use as natural prophylactics and in food applications.
Collapse
|
27
|
Yola ML, Atar N, Üstündağ Z, Solak AO. A novel voltammetric sensor based on p-aminothiophenol functionalized graphene oxide/gold nanoparticles for determining quercetin in the presence of ascorbic acid. J Electroanal Chem (Lausanne) 2013. [DOI: 10.1016/j.jelechem.2013.03.016] [Citation(s) in RCA: 131] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
28
|
Shen SC, Chang WC, Chang CL. An extract from wax apple (Syzygium samarangense (Blume) Merrill and Perry) effects glycogenesis and glycolysis pathways in tumor necrosis factor-α-treated FL83B mouse hepatocytes. Nutrients 2013; 5:455-67. [PMID: 23389304 PMCID: PMC3635205 DOI: 10.3390/nu5020455] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Revised: 01/21/2013] [Accepted: 02/04/2013] [Indexed: 12/21/2022] Open
Abstract
FL83B mouse hepatocytes were treated with tumor necrosis factor-α (TNF-α) to induce insulin resistance to investigate the effect of a wax apple aqueous extract (WAE) in insulin-resistant mouse hepatocytes. The uptake of 2-[N-(7-nitrobenz-2-oxa-1,3-diazol-4-yl)amino]-2-deoxyglucose (2 NBDG), a fluorescent D-glucose derivative, was performed, and the metabolism of carbohydrates was evaluated by examining the expression of glycogenesis or glycolysis-related proteins in insulin-resistant hepatocytes. The results show that WAE significantly improves the uptake of glucose and enhances glycogen content in insulin-resistant FL83B mouse hepatocytes. The results from Western blot analysis also reveal that WAE increases the expression of glycogen synthase (GS), hexokinase (HXK), glucose-6-phosphate dehydrogenase (G6PD), phosphofructokinase (PFK) and aldolase in TNF-α treated cells, indicating that WAE may ameliorate glucose metabolism by promoting glycogen synthesis and the glycolysis pathways in insulin-resistant FL83B mouse hepatocytes.
Collapse
Affiliation(s)
- Szu-Chuan Shen
- Department of Human Development and Family Studies, National Taiwan Normal University, No. 162, Sec. 1, Heping East Road, Taipei 10610, Taiwan
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +886-2-7734-1437; Fax: +886-2-2363-09635
| | - Wen-Chang Chang
- Graduate Institute of Food Science and Technology, National Taiwan University, P.O. Box 23-14, Taipei 10672, Taiwan; E-Mails: (W.-C.C.); (C.-L.C.)
| | - Chiao-Li Chang
- Graduate Institute of Food Science and Technology, National Taiwan University, P.O. Box 23-14, Taipei 10672, Taiwan; E-Mails: (W.-C.C.); (C.-L.C.)
| |
Collapse
|
29
|
Sakulnarmrat K, Konczak I. Composition of native Australian herbs polyphenolic-rich fractions and in vitro inhibitory activities against key enzymes relevant to metabolic syndrome. Food Chem 2012; 134:1011-9. [DOI: 10.1016/j.foodchem.2012.02.217] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Revised: 01/10/2012] [Accepted: 02/28/2012] [Indexed: 01/22/2023]
|
30
|
Shen SC, Chang WC, Chang CL. Fraction from wax apple [Syzygium samarangense (Blume) Merrill and Perry] fruit extract ameliorates insulin resistance via modulating insulin signaling and inflammation pathway in tumor necrosis factor α-treated FL83B mouse hepatocytes. Int J Mol Sci 2012; 13:8562-8577. [PMID: 22942720 PMCID: PMC3430251 DOI: 10.3390/ijms13078562] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2012] [Revised: 06/05/2012] [Accepted: 07/03/2012] [Indexed: 11/16/2022] Open
Abstract
Inflammation is associated with the development of insulin resistance in Type 2 diabetes mellitus. In the present study, mouse FL83B cells were treated with tumor necrosis factor-alpha (TNF-α) to induce insulin resistance, and then co-incubated with a fraction from wax apple fruit extract (FWFE). This fraction significantly increased the uptake of the nonradioactive fluorescent indicator 2-[N-(7-nitrobenz-2-oxa-1,3-diazol-4-yl) amino]-2-deoxy-d-glucose (2-NBDG) in insulin resistant cells. Western blot analysis revealed that, compared with the TNF-α-treated control group, FWFE increased the expression of the insulin receptor (IR), insulin receptor substrate-1 (IRS-1), protein kinase B (Akt/PKB), phosphatidylinositol-3 kinase (PI3K), and glucose transporter 2 (GLUT-2), and increased IR tyrosyl phosporylation, in insulin resistant FL83B cells. However, FWFE decreased phosphorylation of c-Jun N-terminal kinases (JNK), but not the expression of the intercellular signal-regulated kinases (ERK), in the same cells. These results suggest that FWFE might alleviate insulin resistance in TNF-α-treated FL83B cells by activating PI3K-Akt/PKB signaling and inhibiting inflammatory response via suppression of JNK, rather than ERK, activation.
Collapse
Affiliation(s)
- Szu-Chuan Shen
- Department of Human Development and Family Studies, National Taiwan Normal University, No. 162, Sec. 1, Heping East Road, Taipei 10610, Taiwan
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +886-2-77341437; Fax: +886-2-23639635
| | - Wen-Chang Chang
- Graduate Institute of Food Science and Technology, National Taiwan University, P.O. Box 23-14, Taipei 10672, Taiwan; E-Mails: (W.-C.C.); (C.-L.C.)
| | - Chiao-Li Chang
- Graduate Institute of Food Science and Technology, National Taiwan University, P.O. Box 23-14, Taipei 10672, Taiwan; E-Mails: (W.-C.C.); (C.-L.C.)
| |
Collapse
|
31
|
Chang WC, Shen SC. Effect of water extracts from edible Myrtaceae plants on uptake of 2-(n-(7-nitrobenz-2-oxa-1,3-diazol-4-yl)amino)-2-deoxyglucose in TNF-α-treated FL83B mouse hepatocytes. Phytother Res 2012; 27:236-43. [PMID: 22532499 DOI: 10.1002/ptr.4681] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2011] [Revised: 02/20/2012] [Accepted: 02/22/2012] [Indexed: 11/07/2022]
Abstract
This study investigated the glucose uptake activity of the water extracts from the leaves and fruit of edible Myrtaceae plants, including guava (Psidium guajava Linn.), wax apples [Syzygium samarangense (Blume) Merr. and L.M. Perry], Pu-Tau [Syzygium jambo (L.) Alston], and Kan-Shi Pu-Tau (Syzygium cumini Linn.) in FL83B mouse hepatocytes. The fluorescent dye 2-(n-(7-nitrobenz-2-oxa-1,3-diazol-4-yl)amino)-2-deoxyglucose was used to estimate the uptake ability of the cells. Glucose uptake test showed that pink wax apple fruit extract (PWFE) exhibits the highest glucose uptake activity, at an increment of 21% in the insulin-resistant FL83B mouse hepatocytes as compared with the TNF-α-treated control group. Vescalagin was isolated using column chromatography of PWFE. This compound, at the concentration of 6.25 µg/mL, exhibits the same glucose uptake improvement in insulin-resistant cells as PWFE at a 100-µg/mL dose. We postulate that vescalagin is an active component in PWFE that may alleviate the insulin resistance in mouse hepatocytes.
Collapse
Affiliation(s)
- Wen-Chang Chang
- Graduate Institute of Food Science and Technology, National Taiwan University, PO box 23-14, Taipei, 10672, Taiwan
| | | |
Collapse
|
32
|
Ramful D, Tarnus E, Aruoma OI, Bourdon E, Bahorun T. Polyphenol composition, vitamin C content and antioxidant capacity of Mauritian citrus fruit pulps. Food Res Int 2011. [DOI: 10.1016/j.foodres.2011.03.056] [Citation(s) in RCA: 197] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
33
|
Polyphenolic content and antioxidant activity of Eugenia pollicina leaf extract in vitro and in model emulsion systems. Food Res Int 2011. [DOI: 10.1016/j.foodres.2010.09.024] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
34
|
Senggunprai L, Kukongviriyapan V, Prawan A, Kukongviriyapan U. Consumption of Syzygium gratum promotes the antioxidant defense system in mice. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2010; 65:403-409. [PMID: 21104319 DOI: 10.1007/s11130-010-0200-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Several vegetables have been shown to possess cytoprotective and antioxidant effects with various mechanisms of action. The aim of this study was to determine the antioxidant effects and mechanism underlying of Syzygium gratum, a dietary and herbal plant commonly found in the Southeast Asia. Additionally, its effects on the induction of endogenous antioxidant defensive system were also investigated. Results showed that the leaf extract possessed an exceptionally strong antioxidant and intracellular oxygen radical scavenging activity in both aqueous and ethanolic extracts. The plant aqueous extract was further studied in C57BL/6J mice to evaluate its effects in vivo. The extract was well tolerated by the animals throughout the 30 days of study. The cytoprotective enzyme, heme oxygenase (HO-1) activity was significantly increased in the high dose-treated animals (1 g/kg/day). Consistent with the enzymatic activity, the expression of HO-1 mRNA tended to increase in those mice. There was no significant increase in hepatic γ-glutamylcysteine ligase (γ-GCL) activity, glutathione levels and GCL mRNA expression. Taken together, this study provides evidence that S. gratum exhibits potent direct antioxidant properties and can induce cytoprotective enzyme in vivo. Consumption of S. gratum may provide a health benefit against oxidative stress and other related disorders.
Collapse
Affiliation(s)
- Laddawan Senggunprai
- Department of Pharmacology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | | | | | | |
Collapse
|
35
|
Ramful D, Tarnus E, Rondeau P, Da Silva CR, Bahorun T, Bourdon E. Citrus fruit extracts reduce advanced glycation end products (AGEs)- and H₂O₂-induced oxidative stress in human adipocytes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:11119-29. [PMID: 20882960 DOI: 10.1021/jf102762s] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Diabetes is a reactive oxygen species (ROS)-mediated pathology, with a worldwide prevalence estimated to double by 2030. A major effort has been launched to find therapeutic means to improve health conditions of diabetic patients. Recent data show that supplemental natural antioxidants represent a potential strategy as adjunct therapy. Despite the major role of adipocytes in the etiology of diabetes, little is known about the effect of natural antioxidants on adipocyte response to oxidative stress. Using a diabetes-like oxidative stress model, the potential protective effect of antioxidative flavedo, albedo, and pulp extracts of (1) tangor Elendale (Citrus reticulata × Citrus sinensis) and (2) tangelo Minneola (C. reticulata × Citrus paradisis) was investigated on human adipocytes. Besides the retardation of free-radical-induced hemolysis of human erythrocytes, non-cytotoxic concentrations of tangelo and tangor flavedo extracts significantly reduced the levels of protein carbonyls in response to advanced glycation end products (AGEs) generated by albumin glycation in SW872 cells. Flavedo extracts lowered carbonyl accumulation in H2O2-treated adipocytes, while tangelo and tangor flavedo, albedo, and pulp extracts suppressed ROS production in SW872 cells with or without the addition of H2O2. Our results clearly show that Mauritian Citrus fruit extracts represent an important source of antioxidants, with a novel antioxidative role at the adipose tissue level.
Collapse
Affiliation(s)
- Deena Ramful
- Department of Agricultural and Food Science, Faculty of Agriculture, University of Mauritius, Réduit, Republic of Mauritius
| | | | | | | | | | | |
Collapse
|
36
|
Akinmoladun AC, Obuotor EM, Farombi EO. Evaluation of antioxidant and free radical scavenging capacities of some Nigerian indigenous medicinal plants. J Med Food 2010; 13:444-51. [PMID: 20192848 DOI: 10.1089/jmf.2008.0292] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Methanolic extracts of 10 selected Nigerian medicinal plants-Psidium guajava, Alstonia boonei, Cassia alata, Newbouldia laevis, Spondias mombin, Globimetula cupulatum, Chromolaena odorata, Securidaca longepedunculata, Ocimum gratissimum, and Morinda lucida-widely used in ethnomedicine, were assessed for phytochemical constituents and antioxidant and free radical scavenging activities using seven different antioxidant assay methods. Phytochemical screening gave positive tests for steroids, terpenoids, and cardiac glycosides, alkaloids, saponins, tannins, and flavonoids contained in the extracts. P. guajava contained the highest amount of total phenolics (380.08 +/- 4.40 mg/L gallic acid equivalents), and the highest amounts of total flavonoids were found in the leaf extracts of C. alata (275.16 +/- 1.62 microg/mL quercetin equivalents [QE]), C. odorata (272.12 +/- 2.32 microg/mL QE), and P. guajava (269.72 +/- 2.78 microg/mL QE). Percentage 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity was highest in S. mombin (88.58 +/- 3.04%) and P. guajava (82.79 +/- 2.84%) and compared with values obtained for ascorbic acid and gallic acid. All the extracts, generally, had low nitric oxide radical scavenging activities, and G. cupulatum had the highest hydroxyl radical scavenging activity (63.84 +/- 0.97%). The extracts in general demonstrated high lipid peroxidation inhibitory activity, with only M. lucida (38.74 +/- 1.99%) and A. boonei (47.16 +/- 0.59%) being exceptions. The reductive potential was highest in P. guajava (0.79 +/- 0.04) and least in S. longepedunculata (0.26 +/- 0.00). DPPH assay correlated well with total phenolic contents (r(2) = 0.76) and reductive potential (r(2) = 0.81) and fairly with lipid peroxidation inhibitory activity (r(2) = 0.51). There was a good correlation between total phenolic contents and reductive potential (r(2) = 0.79) and a fair correlation between total phenolic contents and lipid peroxidation inhibitory activity (r(2) = 0.55). These results suggest that the methanolic extracts of the studied plant parts possess significant antioxidant and radical scavenging activities that may be due to the phytochemical content of the plants and as such make them potential candidates as natural chemoprophylactic agents. In addition, multiple assay methods should be used in comparing antioxidant capacities of samples to have a reliable result.
Collapse
Affiliation(s)
- Afolabi C Akinmoladun
- Drug Metabolism and Toxicology Unit, Department of Biochemistry, University of Ibadan, Ibadan, Oyo State, Nigeria
| | | | | |
Collapse
|
37
|
Dai J, Mumper RJ. Plant phenolics: extraction, analysis and their antioxidant and anticancer properties. Molecules 2010; 15:7313-52. [PMID: 20966876 PMCID: PMC6259146 DOI: 10.3390/molecules15107313] [Citation(s) in RCA: 1747] [Impact Index Per Article: 124.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2010] [Revised: 10/15/2010] [Accepted: 10/19/2010] [Indexed: 02/07/2023] Open
Abstract
Phenolics are broadly distributed in the plant kingdom and are the most abundant secondary metabolites of plants. Plant polyphenols have drawn increasing attention due to their potent antioxidant properties and their marked effects in the prevention of various oxidative stress associated diseases such as cancer. In the last few years, the identification and development of phenolic compounds or extracts from different plants has become a major area of health- and medical-related research. This review provides an updated and comprehensive overview on phenolic extraction, purification, analysis and quantification as well as their antioxidant properties. Furthermore, the anticancer effects of phenolics in-vitro and in-vivo animal models are viewed, including recent human intervention studies. Finally, possible mechanisms of action involving antioxidant and pro-oxidant activity as well as interference with cellular functions are discussed.
Collapse
Affiliation(s)
- Jin Dai
- Four Tigers LLC, 1501 Bull Lea Road, Suite 105, Lexington, Kentucky 40511 USA; (J.D.)
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, Kentucky 40536, USA
| | - Russell J. Mumper
- Division of Molecular Pharmaceutics, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
- Author to whom correspondence should be addressed; ; Tel.: +1-919-966-1271; Fax: +1-919-966-6919
| |
Collapse
|
38
|
Gutiérrez F, Ortega G, Cabrera JL, Rubianes MD, Rivas GA. Quantification of Quercetin Using Glassy Carbon Electrodes Modified with Multiwalled Carbon Nanotubes Dispersed in Polyethylenimine and Polyacrylic Acid. ELECTROANAL 2010. [DOI: 10.1002/elan.201000291] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
39
|
Ramful D, Bahorun T, Bourdon E, Tarnus E, Aruoma OI. Bioactive phenolics and antioxidant propensity of flavedo extracts of Mauritian citrus fruits: potential prophylactic ingredients for functional foods application. Toxicology 2010; 278:75-87. [PMID: 20100535 DOI: 10.1016/j.tox.2010.01.012] [Citation(s) in RCA: 126] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2009] [Revised: 01/11/2010] [Accepted: 01/18/2010] [Indexed: 11/25/2022]
Abstract
The flavedo extracts of twenty-one varieties of citrus fruits (oranges, satsumah, clementine, mandarins, tangor, bergamot, lemon, tangelos, kumquat, calamondin and pamplemousses) grown in Mauritius were examined for their total phenolic, flavonoid and vitamin C contents and antioxidant activities. Total phenolics correlated strongly with the trolox equivalent antioxidant capacity (TEAC), ferric reducing antioxidant capacity (FRAP) and hypochlorous acid (HOCl) scavenging activity assays (r > 0.85). Based on their antioxidant activities in these three assays nine citrus fruits namely, one orange, clementine, tangor and pamplemousse variety, two tangelo varieties and three mandarin varieties, were further characterized for their flavanone, flavonol and flavone levels by HPLC and their antioxidant activities were assessed by the copper-phenanthroline and iron chelation assays. The flavanone, hesperidin, was present at the highest concentrations in all flavedo extracts except for pamplemousses where it was not detected. Contents in hesperidin ranged from 83 ± 0.06 to 234 ± 1.73 mg/g FW. Poncirin, didymin, diosmin, isorhoifolin and narirutin were also present in all extracts whereas naringin was present only in one mandarin variety. The nine flavedo extracts exhibited good DNA protecting ability in the cuphen assay with IC₅₀ values ranging from 6.3 ± 0.46 to 23.0 ± 0.48 mg FW/mL. Essentially the flavedos were able to chelate metal ions however, tangor was most effective with an IC₅₀ value of 9.1 ± 0.08 mg FW/mL. The flavedo extracts of citrus fruits represent a significant source of phenolic antioxidants with potential prophylactic properties for the development of functional foods.
Collapse
Affiliation(s)
- Deena Ramful
- Department of Agricultural and Food Science, Faculty of Agriculture, University of Mauritius, Réduit, Mauritius
| | | | | | | | | |
Collapse
|
40
|
Neergheen VS, Bahorun T, Taylor EW, Jen LS, Aruoma OI. Targeting specific cell signaling transduction pathways by dietary and medicinal phytochemicals in cancer chemoprevention. Toxicology 2009; 278:229-41. [PMID: 19850100 DOI: 10.1016/j.tox.2009.10.010] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2009] [Revised: 10/06/2009] [Accepted: 10/09/2009] [Indexed: 02/08/2023]
Abstract
Natural phytochemicals derived from dietary sources or medicinal plants have gained significant recognition in the potential management of several human clinical conditions. Much research has also been geared towards the evaluation of plant extracts as effective prophylactic agents since they can act on specific and/or multiple molecular and cellular targets. Plants have been an abundant source of highly effective phytochemicals which offer great potential in the fight against cancer by inhibiting the process of carcinogenesis through the upregulation of cytoprotective genes that encode for carcinogen detoxifying enzymes and antioxidant enzymes. The mechanistic insight into chemoprevention further includes induction of cell cycle arrest and apoptosis or inhibition of signal transduction pathways mainly the mitogen-activated protein kinases (MAPK), protein kinases C (PKC), phosphoinositide 3-kinase (PI3K), glycogen synthase kinase (GSK) which lead to abnormal cyclooxygenase-2 (COX-2), activator protein-1 (AP-1), nuclear factor-kappaB (NF-κB) and c-myc expression. Effectiveness of chemopreventive agents reflects their ability to counteract certain upstream signals that leads to genotoxic damage, redox imbalances and other forms of cellular stress. Targeting malfunctioning molecules along the disrupted signal transduction pathway in cancer represent a rational strategy in chemoprevention. NF-κB and AP-1 provide mechanistic links between inflammation and cancer, and moreover regulate tumor angiogenesis and invasiveness, indicating that signaling pathways that mediate their activation provide attractive targets for new chemotherapeutic approaches. Thus cell signaling cascades and their interacting factors have become important targets of chemoprevention and phenolic phytochemicals and plant extracts seem to be promising in this endeavor.
Collapse
Affiliation(s)
- Vidushi S Neergheen
- Department of Health Sciences, Faculty of Science, University of Mauritius, Réduit, Mauritius.
| | | | | | | | | |
Collapse
|
41
|
Almeida IF, Valentão P, Andrade PB, Seabra RM, Pereira TM, Amaral MH, Costa PC, Bahia MF. In vivo skin irritation potential of a Castanea sativa (Chestnut) leaf extract, a putative natural antioxidant for topical application. Basic Clin Pharmacol Toxicol 2008; 103:461-7. [PMID: 18793273 DOI: 10.1111/j.1742-7843.2008.00301.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Topical application of natural antioxidants has proven to be effective in protecting the skin against ultraviolet-mediated oxidative damage and provides a straightforward way to strengthen the endogenous protection system. However, natural products can provoke skin adverse effects, such as allergic and irritant contact dermatitis. Skin irritation potential of Castanea sativa leaf ethanol:water (7:3) extract was investigated by performing an in vivo patch test in 20 volunteers. Before performing the irritation test, the selection of the solvent and extraction method was guided by the 1,1-diphenyl-2-picryl hydrazyl (DPPH) free radical scavenging test and polyphenols extraction (measured by the Folin Ciocalteu assay). Iron-chelating activity and the phenolic composition (high performance liquid chromatography/diode array detection) were evaluated for the extract obtained under optimized conditions. The extraction method adopted consisted in 5 short extractions (10 min.) with ethanol:water (7:3), performed at 40 degrees. The IC(50) found for the iron chelation and DPPH scavenging assays were 132.94 +/- 9.72 and 12.58 +/- 0.54 microg/ml (mean +/- S.E.M.), respectively. The total phenolic content was found to be 283.8 +/- 8.74 mg GAE/g extract (mean +/- S.E.M.). Five phenolic compounds were identified in the extract, namely, chlorogenic acid, ellagic acid, rutin, isoquercitrin and hyperoside. The patch test carried out showed that, with respect to irritant effects, this extract can be regarded as safe for topical application.
Collapse
Affiliation(s)
- Isabel F Almeida
- Department of Pharmaceutical Technology, São Marcos Hospital, Braga, Portugal
| | | | | | | | | | | | | | | |
Collapse
|
42
|
Soobrattee MA, Bahorun T, Neergheen VS, Googoolye K, Aruoma OI. Assessment of the content of phenolics and antioxidant actions of the Rubiaceae, Ebenaceae, Celastraceae, Erythroxylaceae and Sterculaceae families of Mauritian endemic plants. Toxicol In Vitro 2008; 22:45-56. [PMID: 17911003 DOI: 10.1016/j.tiv.2007.07.012] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2006] [Revised: 06/15/2007] [Accepted: 07/30/2007] [Indexed: 11/22/2022]
Abstract
There is continued interest in the assessment of the bioefficacy of the active principles in extracts from a variety of traditional medicine and food plants in order to determine their impact on the management of a variety of clinical conditions and maintenance of health. The polyphenolic composition and antioxidant potential of Mauritian endemic plants of the Rubiaceae, Ebenaceae, Celastraceae, Erythroxylaceae and Sterculaceae family were determined. The phenolics level of the plant extracts varied from 1 to 75 mg/g FW, the maximum level measured in Diospyros neraudii (Ebenaceae). Coffea macrocarpa showed the highest flavonoids content with 18+/-0.7 mg/g FW. The antioxidant capacity based on the TEAC and FRAP values were strongly related to total phenolics and proanthocyanidins content, while a weaker correlation was observed with (-) gallic acid. Erythroxylum sideroxyloides showed the highest protective effect in the lipid peroxidation systems with IC(50) of 0.0435+/-0.001 mg FW/ml in the Fe(3+)/ascorbate system and 0.05+/-0.002 mg FW/ml in the AAPH system. Cassine orientalis, E. sideroxyloides, Diospyros mellanida and Chassalia coriancea var. johnstonii were weakly prooxidant only at higher concentration greater of 10 g FW/L indicating potential safety. Mauritian endemic plants, particularly the genus Diospyros, are good sources of phenolic antioxidants and potential candidates for the development of prophylactic agents.
Collapse
Affiliation(s)
- Muhammad A Soobrattee
- Department of Biosciences, Faculty of Science, University of Mauritius, Réduit, Mauritius
| | | | | | | | | |
Collapse
|
43
|
Almeida IF, Valentão P, Andrade PB, Seabra RM, Pereira TM, Amaral MH, Costa PC, Bahia MF. Oak leaf extract as topical antioxidant: free radical scavenging and iron chelating activities and in vivo skin irritation potential. Biofactors 2008; 33:267-79. [PMID: 19509462 DOI: 10.1002/biof.5520330403] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The topical application of antioxidants may be beneficial for the protection of the skin against UV damage. An extract of Quercus robur leaves was prepared and evaluated considering its putative application as topical antioxidant. The solvent and extractive method selection was monitored by 1,1-diphenyl-2-picryl hydrazyl (DPPH) free radical scavenging activity and polyphenols extraction (measured by the Folin Ciocalteu assay). Iron chelating activity and the phenolic composition (HPLC/DAD) were assessed on the extract obtained under optimized conditions. Skin irritation potential was investigated by performing an in vivo patch test in 19 volunteers. The extraction solvent which resulted in the highest activity was ethanol:water (4:6) and thus it was selected for further preparation of this extract. The IC50s for the iron chelation and DPPH scavenging assays were 153.8 +/- 26.3 microg x mL-1 and 7.53 +/- 0.71 microg x mL-1 (mean +/- SD), respectively. The total phenolic content was found to be 346.3 +/- 6.7 mg gallic acid equivalents (GAE)/g extract (mean +/- SD). Three phenolic compounds were identified in the extract namely: ellagic acid, rutin and hyperoside. The major identified component was ellagic acid. The patch test carried out showed that the extract can be regarded as safe for topical application.
Collapse
Affiliation(s)
- Isabel F Almeida
- Departamento de Tecnologia Farmacêutica, Faculdade de Farmácia da Universidade do Porto, Porto, Portugal
| | | | | | | | | | | | | | | |
Collapse
|
44
|
dos Santos PE, Egito LCM, de Medeiros SRB, Agnez-Lima LF. Genotoxicity induced by Eugenia caryophyllata infusion. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2008; 71:439-444. [PMID: 18306091 DOI: 10.1080/15287390701839232] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Several therapeutic properties have been described for Eugenia caryophyllata (clove). In the present study the infusion of E. caryophyllata was evaluated in a series of bacterial and cell-free assays in order to determine genotoxic potential. Negative results were obtained in the SOS chromotest and in the Salmonella reversion assay using strains TA97a, TA98, TA100, and TA102. However, in a forward mutagenesis assay an increase in mutagenesis and high cytotoxicity was observed with the CC104 mutMmutY strain, suggesting that oxidative DNA damage occurred. The treatment of plasmid with clove infusion showed that DNA strand breaks and sites recognized by formamidopyrimidine-DNA-glycosylase (FPG/MutM) were generated. Data suggest that the occurrence of oxidative DNA damage, with low mutagenic potential, may also be involved in the cytotoxicity attributed to clove infusion.
Collapse
Affiliation(s)
- Patrícia Estevam dos Santos
- Departamento de Biologia Celular e Genética, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, Brazil
| | | | | | | |
Collapse
|
45
|
Kukongviriyapan U, Luangaram S, Leekhaosoong K, Kukongviriyapan V, Preeprame S. Antioxidant and vascular protective activities of Cratoxylum formosum, Syzygium gratum and Limnophila aromatica. Biol Pharm Bull 2007; 30:661-6. [PMID: 17409498 DOI: 10.1248/bpb.30.661] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Phytochemicals contained in dietary plants provide a variety of health benefits and may reduce the risk of cardiovascular diseases. The aqueous extracts from three popular Thai dietary and herbal plants, Cratoxylum formosum, Syzygium gratum, and Limnophila aromatica, were investigated for the antioxidant and vascular protective activities in the in vitro and in vivo models. The free radical scavenging and antioxidant activities of plant extracts were evaluated in vitro by the 1,1-diphenyl-2-picrylhydrazyl assay, the ferric reducing antioxidant power assay, the intracellular antioxidant activity in rat peritoneal macrophages by dihydrofluorescein assay, and the inhibition of nitric oxide (NO) production in RAW 264.7 macrophages. In an animal model of oxidative stress and vascular dysfunction, male Sprague-Dawley rats were orally administered with aqueous plant extracts (1 g/kg/d) or N-acetylcysteine (NAC; 300 mg/kg/d) as a control for 6 d. On day four, all animals except the normal control group, were administered with phenylhydrazine (PHZ) intraperitoneally. It was demonstrated that the plant extracts possessed high free radical scavenging and antioxidant activities. PHZ induced severe hemolysis and hemodynamic disturbances and treatment with the extracts and NAC significantly improved the hemodynamic status. Vascular responsiveness to bradykinin, acetylcholine, and phenylephrine in PHZ-control rats was markedly impaired, and the plant extracts or NAC largely restored the vascular responses. Moreover, the plant extracts prevented loss of blood reduced glutathione and suppressed formation of plasma malondialdehyde, plasma NO metabolites and blood superoxide anion. It was concluded that the plant extracts possess antioxidants and have potential roles in protection of vascular dysfunction.
Collapse
Affiliation(s)
- Upa Kukongviriyapan
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Thailand.
| | | | | | | | | |
Collapse
|
46
|
Mersch-Sundermann V, Bahorun T, Stahl T, Neergheen VS, Soobrattee MA, Wohlfarth R, Sobel R, Brunn HE, Schmeiser T, Lamy E, Aruoma OI. Assessment of the DNA damaging potency and chemopreventive effects towards BaP-induced genotoxicity in human derived cells by Monimiastrum globosum, an endemic Mauritian plant. Toxicol In Vitro 2006; 20:1427-34. [PMID: 16934955 DOI: 10.1016/j.tiv.2006.06.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2006] [Revised: 06/14/2006] [Accepted: 06/26/2006] [Indexed: 11/28/2022]
Abstract
Naturally occurring compounds have protective effects towards mutagens and carcinogens. The leaf extract of Monimiastrum globosum (Bois de Clous), a Mauritian endemic plant from the Myrtaceae family, was studied for its potency to induce DNA damage in human HepG2 hepatoma cells using DNA migration as a biological endpoint in the alkaline single cell gel electrophoresis (SCGE) assay. This was contrasted with the ability to modulate the benzo[a]pyrene (BaP)-dependent DNA damage in human hepatoma cells. M. globosum caused genotoxicity in HepG2 cells at concentrations exceeding 3mg fresh weight (FW) per ml cell culture in the absence of cytotoxicity. Pre-treatment of the cells with 12.2 microg FW/ml to 1.56 mg FW/ml led to a pronounced antigenotoxic effect towards BaP-induced DNA damage. DNA migration (OTM) was reduced by 66%, 81.5% and 74% for 49, 98 and 195 microg FW/ml, respectively. A U-shaped dose-response curve was derived for M. globosum indicating genotoxic effects in high doses and antigenotoxic effects in low doses. M. globosum extract had total phenolics (15 mg/g FW) with flavonoids (aglycones and conjugates: 8 mg/g FW) and proanthocyanidins (3mg/g FW) as major phenolic subclasses. The hydrolysis of conjugated flavonoids yielded the aglycones quercetin (606 microg/g FW) and kaempferol (117.8 microg/g FW) while HPLC-MS/MS analysis of the total extract revealed free flavonoids such as quercetin (19.2 microg/g FW) and myricetin (2.5 microg/g FW). The antioxidant activity of the extract of M. globosum, assessed by the FRAP and TEAC assays yielded values of 275+/-3.82 micromol/g FW and 346+/-4.2 micromol/g FW, respectively.
Collapse
Affiliation(s)
- Volker Mersch-Sundermann
- Institute of Indoor and Environmental Toxicology, Faculty of Medicine, Justus-Liebig University of Giessen, Giessen, Germany
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|