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du Preez BVP, de Beer D, Moelich EI, Muller M, Joubert E. Development of chemical-based reference standards for rooibos and honeybush aroma lexicons. Food Res Int 2019; 127:108734. [PMID: 31882089 DOI: 10.1016/j.foodres.2019.108734] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 09/27/2019] [Accepted: 09/29/2019] [Indexed: 10/25/2022]
Abstract
The honeybush sensory wheel was revised, using a large sample set (n = 585) comprising of the major commercial Cyclopia species, i.e. C. intermedia, C. subternata and C. genistoides. Only positive and negative aroma attributes were included in the wheel. Chemicals were identified to serve as reference standards for the honeybush (Cyclopia spp.) lexicon. Similarly, chemical-based reference standards were identified for the rooibos (Aspalathus linearis) lexicon. From a comprehensive literature search and gas chromatography-mass spectrometry analyses, chemicals were screened by an expert panel for their suitability in terms of typicality of the target aroma. Each chemical was evaluated in a 'base tea' and compared to a specific 'reference tea' exhibiting a high intensity of the target aroma. A total of 30 and 44 chemicals for rooibos and honeybush, respectively, were selected for validation by a trained panel. Descriptive sensory analysis was conducted to assign typicality and intensity scores for each chemical representing a target aroma attribute. Several chemicals were identified as suitable reference standards for the following aroma notes: isophorone ('rooibos-woody'), maltyl isobutyrate ('caramel'), cis-3-hexenol ('green grass'), 4-oxoisophorone ('seaweed') and 2,4,6-trichloroanisole ('musty/mouldy') for rooibos; and 2-acetyl-5-methylfuran ('woody'), levulinic acid ('fynbos-sweet'), maltyl isobutyrate ('caramel'), and 2-acetylpyrrole ('nutty') for honeybush.
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Affiliation(s)
- B V P du Preez
- Department of Food Science, Stellenbosch University, Private Bag X1, Matieland (Stellenbosch) 7602, South Africa.
| | - D de Beer
- Department of Food Science, Stellenbosch University, Private Bag X1, Matieland (Stellenbosch) 7602, South Africa; Plant Bioactives Group, Post-Harvest & Agro-Processing Technologies Division, Agricultural Research Council (Infruitec-Nietvoorbij), Private Bag X5026, Stellenbosch 7599, South Africa.
| | - E I Moelich
- Department of Food Science, Stellenbosch University, Private Bag X1, Matieland (Stellenbosch) 7602, South Africa.
| | - M Muller
- Department of Food Science, Stellenbosch University, Private Bag X1, Matieland (Stellenbosch) 7602, South Africa.
| | - E Joubert
- Department of Food Science, Stellenbosch University, Private Bag X1, Matieland (Stellenbosch) 7602, South Africa; Plant Bioactives Group, Post-Harvest & Agro-Processing Technologies Division, Agricultural Research Council (Infruitec-Nietvoorbij), Private Bag X5026, Stellenbosch 7599, South Africa.
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Jack BU, Malherbe CJ, Mamushi M, Muller CJF, Joubert E, Louw J, Pheiffer C. Adipose tissue as a possible therapeutic target for polyphenols: A case for Cyclopia extracts as anti-obesity nutraceuticals. Biomed Pharmacother 2019; 120:109439. [PMID: 31590126 DOI: 10.1016/j.biopha.2019.109439] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 08/29/2019] [Accepted: 09/06/2019] [Indexed: 02/07/2023] Open
Abstract
Obesity is a significant contributor to increased morbidity and premature mortality due to increasing the risk of many chronic metabolic diseases such as type 2 diabetes, cardiovascular disease and certain types of cancer. Lifestyle modifications such as energy restriction and increased physical activity are highly effective first-line treatment strategies used in the management of obesity. However, adherence to these behavioral changes is poor, with an increased reliance on synthetic drugs, which unfortunately are plagued by adverse effects. The identification of new and safer anti-obesity agents is thus of significant interest. In recent years, plants and their phenolic constituents have attracted increased attention due to their health-promoting properties. Amongst these, Cyclopia, an endemic South African plant commonly consumed as a herbal tea (honeybush), has been shown to possess modulating properties against oxidative stress, hyperglycemia, and obesity. Likewise, several studies have reported that some of the major phenolic compounds present in Cyclopia spp. exhibit anti-obesity effects, particularly by targeting adipose tissue. These phenolic compounds belong to the xanthone, flavonoid and benzophenone classes. The aim of this review is to assess the potential of Cyclopia extracts as an anti-obesity nutraceutical as underpinned by in vitro and in vivo studies and the underlying cellular mechanisms and biological pathways regulated by their phenolic compounds.
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Affiliation(s)
- Babalwa U Jack
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, South Africa.
| | - Christiaan J Malherbe
- Plant Bioactives Group, Post-Harvest and Agro-processing Technologies, Agricultural Research Council, Infruitec-Nietvoorbij, Stellenbosch, South Africa
| | - Mokadi Mamushi
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, South Africa; Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - Christo J F Muller
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, South Africa; Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa; Department of Biochemistry and Microbiology, University of Zululand, Kwa-Dlangezwa, South Africa
| | - Elizabeth Joubert
- Plant Bioactives Group, Post-Harvest and Agro-processing Technologies, Agricultural Research Council, Infruitec-Nietvoorbij, Stellenbosch, South Africa; Department of Food Science, Stellenbosch University, Stellenbosch, South Africa
| | - Johan Louw
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, South Africa; Department of Biochemistry and Microbiology, University of Zululand, Kwa-Dlangezwa, South Africa
| | - Carmen Pheiffer
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, South Africa; Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
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Chukwuma CI, Matsabisa MG, Rautenbach F, Rademan S, Oyedemi SO, Chaudhary SK, Javu M. Evaluation of the nutritional composition of Myrothamnus flabellifolius (Welw.) herbal tea and its protective effect against oxidative hepatic cell injury. J Food Biochem 2019; 43:e13026. [PMID: 31463942 DOI: 10.1111/jfbc.13026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 07/22/2019] [Accepted: 08/11/2019] [Indexed: 01/12/2023]
Abstract
The nutrient composition of Myrothamnus flabellifolius leaf tea extract (MLTE) and its protective effect against oxidative hepatic cell injury were evaluated. Gallic acid, caffeic acid, ferulic acid, methyl gallate, and epicatechin were identified in MLTE by high-performance liquid chromatography (HPLC). The tea extract showed an appreciable nutritional content of proximate, sugar, vitamin E, monounsaturated fatty acids, omega 6 and 9 unsaturated fatty acids, as well as considerable amounts of various mineral elements. Nineteen amino acids were found. Moreover, MLTE exhibited potent in vitro antioxidant activities, presumably because of its richness in polyphenols (gallic acid and ferulic acid) and vitamin E. In Chang liver cells, pretreatment with MLTE suppressed oxidative lipid peroxidation (IC50 = 113.11 μg/ml) and GSH depletion (IC50 = 70.49 μg/ml) without causing cytotoxicity. These data support the local consumption of M. flabellifolius herbal tea, which may be used against oxidative stress-induced diseases while providing the body with necessary nutrients. PRACTICAL APPLICATION: Herbal teas are one of the most consumed beverages in the world today, due to their refreshing taste and additional health benefits. Myrothamnus flabellifolius herbal tea is a widely used traditional herbal tea in Southern Africa with potentials for commercialization due to its pleasant flavor. This study, for the first time, reported the nutritional composition of the leaf decoction of M. flabellifolius and its protective effect on hepatic oxidative insults. These results can inform the dietary and nutritional use of the tea for optimum benefits, as well as provide preliminary scientific validation of the use of the herbal tea as an antioxidant beverage with good nutritional value.
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Affiliation(s)
- Chika Ifeanyi Chukwuma
- Department of Pharmacology, School of Medicine, Faculty of Health Science, University of the Free State, Bloemfontein, South Africa.,Department of Health Sciences, Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, South Africa
| | - Motlalepula G Matsabisa
- Department of Pharmacology, School of Medicine, Faculty of Health Science, University of the Free State, Bloemfontein, South Africa
| | - Fanie Rautenbach
- Oxidative Stress Research Centre, Faculty of Health Sciences and Wellness, Cape Peninsula University of Technology, Bellville, South Africa
| | - Sunelle Rademan
- Department of Pharmacology, School of Medicine, Faculty of Health Science, University of the Free State, Bloemfontein, South Africa
| | - Sunday O Oyedemi
- Department of Pharmacology, School of Medicine, Faculty of Health Science, University of the Free State, Bloemfontein, South Africa
| | - Sushil K Chaudhary
- Department of Pharmacology, School of Medicine, Faculty of Health Science, University of the Free State, Bloemfontein, South Africa
| | - Mirranda Javu
- Department of Pharmacology, School of Medicine, Faculty of Health Science, University of the Free State, Bloemfontein, South Africa
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Stander MA, Redelinghuys H, Masike K, Long H, Van Wyk BE. Patterns of Variation and Chemosystematic Significance of Phenolic Compounds in the Genus Cyclopia (Fabaceae, Podalyrieae). Molecules 2019; 24:molecules24132352. [PMID: 31247917 PMCID: PMC6651507 DOI: 10.3390/molecules24132352] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 06/02/2019] [Accepted: 06/06/2019] [Indexed: 11/16/2022] Open
Abstract
As a contribution towards a better understanding of phenolic variation in the genus Cyclopia (honeybush tea), a collection of 82 samples from 15 of the 23 known species was analysed using liquid-chromatography–high resolution mass spectrometry (UPLC-HRMS) in electrospray ionization (ESI) negative mode. Mangiferin and isomangiferin were found to be the main compounds detected in most samples, with the exception of C. bowiena and C. buxifolia where none of these compounds were detected. These xanthones were found to be absent from the seeds and also illustrated consistent differences between species and provenances. Results for contemporary samples agreed closely with those based on analysis of a collection of ca. 30-year-old samples. The use of multivariate tools allowed for graphical visualizations of the patterns of variation as well as the levels of the main phenolic compounds. Exclusion of mangiferin and citric acid from the data was found to give better visual separation between species. The use of UPLC-HRMS generated a large dataset that allowed for comparisons between species, provenances and plant parts (leaves, pods, flowers and seeds). Phenetic analyses resulted in groupings of samples that were partly congruent with species but not with morphological groupings within the genus. Although different provenances of the same species were sometimes found to be very variable, Principle Component Analysis (PCA) indicated that a combination of compounds have some (albeit limited) potential as diagnostic characters at species level. 74 Phenolic compounds are presented, many of which were identified for the first time in Cyclopia species, with nine of these being responsible for the separation between samples in the PCAs.
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Affiliation(s)
- Maria A Stander
- Department of Biochemistry, University of Stellenbosch, Private Bag X1, Matieland 7600, South Africa.
- Mass Spectrometry Unit, Central Analytical Facility, University of Stellenbosch, Private Bag X1, Matieland 7600, South Africa.
| | - Herman Redelinghuys
- CREST (Centre for Research on Evaluation, Science and Technology), University of Stellenbosch, Private Bag X1, Matieland 7600, South Africa.
| | - Keabetswe Masike
- Department of Biochemistry, University of Stellenbosch, Private Bag X1, Matieland 7600, South Africa.
| | - Helen Long
- Department of Botany and Plant Biotechnology, University of Johannesburg, P.O. Box 524, Auckland Park, Johannesburg 2006, South Africa.
| | - Ben-Erik Van Wyk
- Department of Botany and Plant Biotechnology, University of Johannesburg, P.O. Box 524, Auckland Park, Johannesburg 2006, South Africa.
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Lawal AO, Davids LM, Marnewick JL. Rooibos (Aspalathus linearis) and honeybush (Cyclopia species) modulate the oxidative stress associated injury of diesel exhaust particles in human umbilical vein endothelial cells. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 59:152898. [PMID: 30986715 DOI: 10.1016/j.phymed.2019.152898] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 01/22/2019] [Accepted: 03/19/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Previous evidence show foods and beverages rich in polyphenolic compounds to have favourable effects on the cardiovascular system. HYPOTHESIS The current study assessed the modulation of oxidative stress and associated inflammation induced by diesel exhaust particles (DEP - SRM 2975) by pre-treatment of human umbilical vein endothelial cells (HUVECs) with aqueous extracts of rooibos [fermented (FR) as well as green form (GR)] and honeybush [fermented form (FH)]. STUDY DESIGN HUVEC are either exposed to DEP (10 µg/ml) for 4 h or pre-treated with 40 and 60 µg/ml of FR or GH or FR, or 50 µg/ml orientin (OR) for 6 h prior to DEP exposure. METHODS In vitro antioxidant capacity of the extracts was assessed and the polyphenol contents were also assessed by HPLC. ROS, cell viability, lactate dehydrogenase leakage, lipid peroxidation, GSH:GSSG ratios, conjugated diene and protein carbonyl levels were determined as indices of oxidative stress and cytotoxicity. RT-qPCR and western blot were used to assess inflammatory cytokines and antioxidant genes expression. RESULTS DEP caused a dose and time-dependent increase in ROS production, significant (p < 0.001) increase in protein carbonyl (PC) formation, thiobarbituric acid reactive substances and conjugated dienes levels (p < 0.01) and a significant reduction in glutathione (GSH) redox status. Pre-incubation with either the herbal extracts or orientin attenuated these effects. The significant increase in IL-1α, IL-6, IL-8, VCAM-1 and ATF4 gene expression caused by DEP (10 µg/ml) were also attenuated by the presence of the FR, GR and FH extracts, and OR . Pre-treatment with the rooibos extracts or flavone orientin enhanced cell viability, reduced LDH leakage, enhanced mRNA expression of NQO1 and Nrf2, but repressed CYP1B1 mRNA induced by DEP. Western blot showed both the herbal tea extracts and orientin to enhance NQO1 and γGSC protein induction by DEP. CONCLUSION Taken together, the herbal extracts offer protection against DEP-induced oxidative stress and inflammatory response.
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Affiliation(s)
- Akeem O Lawal
- Oxidative Stress Research Centre, Institute of Biomedical and Microbial Biotechnology, Cape Peninsula University of Technology, Bellville Campus, Bellville 7535, South Africa.
| | - Lester M Davids
- Department of Medical Biosciences, Faculty of Natural Sciences, University of Western Cape, Bellville, 7535, South Africa
| | - Jeanine L Marnewick
- Oxidative Stress Research Centre, Institute of Biomedical and Microbial Biotechnology, Cape Peninsula University of Technology, Bellville Campus, Bellville 7535, South Africa
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Lawal AO, Oluyede DM, Adebimpe MO, Olumegbon LT, Awolaja OO, Elekofehinti OO, Crown OO. The cardiovascular protective effects of rooibos ( Aspalathus linearis) extract on diesel exhaust particles induced inflammation and oxidative stress involve NF-κB- and Nrf2-dependent pathways modulation. Heliyon 2019; 5:e01426. [PMID: 30976698 PMCID: PMC6441828 DOI: 10.1016/j.heliyon.2019.e01426] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 02/14/2019] [Accepted: 03/22/2019] [Indexed: 12/12/2022] Open
Abstract
Studies have shown that diesel exhaust particles (DEP) induced oxidative stress and inflammation. This present study examined the molecular effects of aqueous rooibos extract (RE) on the cardiovascular toxic effect of methanol extract of DEP in exposed Wistar rats. The results showed that DEP caused significant (p < 0.001) increase in MDA and CDs levels in the aorta and heart but this increase was significantly (p < 0.001) attenuated by rooibos extract. DEP induced IL-8, TNFα, IL-1β and decreased IL-10 gene expressions, all of which were reversed in the presence of rooibos extract. The expression of NF-κB, and IκKB genes were also significantly (p < 0.001) induced by DEP in both tissues, but pre-treatment with RE attenuated these effects. In contrast, DEP repressed IκB mRNA level, which was significantly (p < 0.001) reversed by rooibos extract pre-treatment. In addition, pre-treatment with rooibos extract attenuated the increased Nrf2 and HO-1 mRNA levels caused by DEP. This indicates the potential of rooibos extract to protect against DEP-induced cardiovascular toxicity.
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Affiliation(s)
- Akeem O Lawal
- Bioinformatics and Molecular Biology Unit, Department of Biochemistry, School of Sciences, Federal University of Technology, Akure, P.M.B. 704, Akure, Ondo-State, Nigeria
| | - Dare M Oluyede
- Bioinformatics and Molecular Biology Unit, Department of Biochemistry, School of Sciences, Federal University of Technology, Akure, P.M.B. 704, Akure, Ondo-State, Nigeria
| | - Monsurat O Adebimpe
- Bioinformatics and Molecular Biology Unit, Department of Biochemistry, School of Sciences, Federal University of Technology, Akure, P.M.B. 704, Akure, Ondo-State, Nigeria
| | - Lateefat T Olumegbon
- Bioinformatics and Molecular Biology Unit, Department of Biochemistry, School of Sciences, Federal University of Technology, Akure, P.M.B. 704, Akure, Ondo-State, Nigeria
| | - Olamide O Awolaja
- Bioinformatics and Molecular Biology Unit, Department of Biochemistry, School of Sciences, Federal University of Technology, Akure, P.M.B. 704, Akure, Ondo-State, Nigeria
| | - Olusola O Elekofehinti
- Bioinformatics and Molecular Biology Unit, Department of Biochemistry, School of Sciences, Federal University of Technology, Akure, P.M.B. 704, Akure, Ondo-State, Nigeria
| | - Olamide O Crown
- Biochemical Pharmacology and Phytomedicine Unit, Department of Biochemistry, School of Sciences, Federal University of Technology, Akure, P.M.B. 704, Akure, Ondo-State, Nigeria
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Visualization of Aspalathin in Rooibos ( Aspalathus linearis) Plant and Herbal Tea Extracts Using Thin-Layer Chromatography. Molecules 2019; 24:molecules24050938. [PMID: 30866512 PMCID: PMC6429207 DOI: 10.3390/molecules24050938] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 01/14/2019] [Accepted: 01/18/2019] [Indexed: 01/01/2023] Open
Abstract
Aspalathin, the main polyphenol of rooibos (Aspalathus linearis), is associated with diverse health promoting properties of the tea. During fermentation, aspalathin is oxidized and concentrations are significantly reduced. Standardized methods for quality control of rooibos products do not investigate aspalathin, since current techniques of aspalathin detection require expensive equipment and expertise. Here, we describe a simple and fast thin-layer chromatography (TLC) method that can reproducibly visualize aspalathin in rooibos herbal tea and plant extracts at a limit of detection (LOD) equal to 178.7 ng and a limit of quantification (LOQ) equal to 541.6 ng. Aspalathin is a rare compound, so far only found in A. linearis and its (rare) sister species A. pendula. Therefore, aspalathin could serve as a marker compound for authentication and quality control of rooibos products, and the described TLC method represents a cost-effective approach for high-throughput screening of plant and herbal tea extracts.
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Stander M, Brendler T, Redelinghuys H, Van Wyk BE. The commercial history of Cape herbal teas and the analysis of phenolic compounds in historic teas from a depository of 1933. J Food Compost Anal 2019. [DOI: 10.1016/j.jfca.2018.11.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Smith C, Swart A. Aspalathus linearis (Rooibos) - a functional food targeting cardiovascular disease. Food Funct 2019; 9:5041-5058. [PMID: 30183052 DOI: 10.1039/c8fo01010b] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Increasing consumer bias toward natural products and the considerable wealth of indigenous knowledge has precipitated an upturn in market-driven research into potentially beneficial medicinal plants. In this context, Aspalathus linearis (Rooibos) has been identified to be a promising candidate which may impact cardiovascular disease (CVD), which is one of the most widely studied chronic diseases of modern times. Despite these efforts, ischemic heart disease remains the number one cause of mortality globally. Apart from genetic predisposition and other aetiological mechanisms specific to particular types of CVD, co-factors from interlinked systems contribute significantly to disease development and the severity of its clinical manifestation. The bioactivity of Rooibos is directed towards multiple therapeutic targets. Experimental data to date include antioxidant, anti-inflammatory and anti-diabetic effects, as well as modulatory effects in terms of the immune system, adrenal steroidogenesis and lipid metabolism. This review integrates relevant literature on the therapeutic potential of Rooibos in the context of CVD, which is currently the most common of non-communicable diseases. The therapeutic value of whole plant extracts versus isolated active ingredients are addressed, together with the potential for overdose or herb-drug interaction. The body of research undertaken to date clearly underlines the benefits of Rooibos as both preventative and complementary therapeutic functional food in the context of CVD.
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Affiliation(s)
- Carine Smith
- Dept Physiological Sciences, Science Faculty, Stellenbosch University, Stellenbosch, South Africa.
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Understanding Camellia sinensis using Omics Technologies along with Endophytic Bacteria and Environmental Roles on Metabolism: A Review. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9020281] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Camellia sinensis is the most consumed beverage worldwide. It contains a wide variety of secondary metabolites, such as alkaloids, saponins, tannins, catechins, and polyphenols, generated through a condensation reaction of cinnamic acid with three malonyl-CoA groups. In addition to the metabolic processes occurring within this plant, there are also some plant-associated bacterial endophytes. These bacteria reside in the living tissues of the host plants without causing any harmful effect to them, thereby stimulating secondary metabolite production with a diverse range of biological effects. Omics technologies reveal understanding of the biological phenomena of transcriptomics, proteomics, and metabolomics. In this sense, the present review aims to provide a comprehensive review of various methods used to identify distinct plant compounds, namely transcriptomic, proteomic, and metabolomic analysis. The role of endophytic bacteria in C. sinensis metabolism, and C. sinensis antioxidant and antimicrobial effects, are also carefully highlighted.
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Gaggìa F, Baffoni L, Galiano M, Nielsen DS, Jakobsen RR, Castro-Mejía JL, Bosi S, Truzzi F, Musumeci F, Dinelli G, Di Gioia D. Kombucha Beverage from Green, Black and Rooibos Teas: A Comparative Study Looking at Microbiology, Chemistry and Antioxidant Activity. Nutrients 2018; 11:E1. [PMID: 30577416 PMCID: PMC6356548 DOI: 10.3390/nu11010001] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 12/14/2018] [Accepted: 12/18/2018] [Indexed: 12/13/2022] Open
Abstract
Kombucha is usually obtained from the fermentation of black or green tea by a consortium of acetic acid bacteria and yeasts. In this study, kombucha was prepared from the same starter consortium using green and black teas as well as, for the first time, an infusion of rooibos leaves (Aspalathus linearis). Microbial diversity was analysed during fermentation both in the biofilm and in the corresponding kombuchas, using culture-dependent and -independent methods. Polyphenols, flavonoids, ethanol, and acids were quantified and anti-oxidant activities were monitored. All of the Kombuchas showed similarity in bacterial composition, with the dominance of Komagataeibacter spp. Beta diversity showed that the yeast community was significantly different among all tea substrates, between 7 and 14 days of fermentation and between biofilm and kombucha, indicating the influence of the substrate on the fermenting microbiota. Kombucha from rooibos has a low ethanol concentration (1.1 mg/mL), and a glucuronic acid amount that was comparable to black tea. Although antioxidant activity was higher in black and green kombucha compared to rooibos, the latter showed an important effect on the recovery of oxidative damage on fibroblast cell lines against oxidative stress. These results make rooibos leaves interesting for the preparation of a fermented beverage with health benefits.
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Affiliation(s)
- Francesca Gaggìa
- Department of Agricultural and Food Sciences (DISTAL), Alma Mater Studiorum-Università di Bologna, viale Fanin 42, 40127 Bologna, Italy.
| | - Loredana Baffoni
- Department of Agricultural and Food Sciences (DISTAL), Alma Mater Studiorum-Università di Bologna, viale Fanin 42, 40127 Bologna, Italy.
| | - Michele Galiano
- Department of Agricultural and Food Sciences (DISTAL), Alma Mater Studiorum-Università di Bologna, viale Fanin 42, 40127 Bologna, Italy.
| | - Dennis Sandris Nielsen
- Department of Food Science, Faculty of Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg C, Denmark.
| | - Rasmus Riemer Jakobsen
- Department of Food Science, Faculty of Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg C, Denmark.
| | - Josue Leonardo Castro-Mejía
- Department of Food Science, Faculty of Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg C, Denmark.
| | - Sara Bosi
- Department of Agricultural and Food Sciences (DISTAL), Alma Mater Studiorum-Università di Bologna, viale Fanin 42, 40127 Bologna, Italy.
| | - Francesca Truzzi
- Department of Agricultural and Food Sciences (DISTAL), Alma Mater Studiorum-Università di Bologna, viale Fanin 42, 40127 Bologna, Italy.
| | - Federica Musumeci
- Department of Agricultural and Food Sciences (DISTAL), Alma Mater Studiorum-Università di Bologna, viale Fanin 42, 40127 Bologna, Italy.
| | - Giovanni Dinelli
- Department of Agricultural and Food Sciences (DISTAL), Alma Mater Studiorum-Università di Bologna, viale Fanin 42, 40127 Bologna, Italy.
| | - Diana Di Gioia
- Department of Agricultural and Food Sciences (DISTAL), Alma Mater Studiorum-Università di Bologna, viale Fanin 42, 40127 Bologna, Italy.
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The Potential of South African Herbal Tisanes, Rooibos and Honeybush in the Management of Type 2 Diabetes Mellitus. Molecules 2018; 23:molecules23123207. [PMID: 30563087 PMCID: PMC6321617 DOI: 10.3390/molecules23123207] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 11/21/2018] [Accepted: 11/30/2018] [Indexed: 12/15/2022] Open
Abstract
Diabetes mellitus is a metabolic disease that can lead to high morbidity, mortality and long-term complications. Available treatment strategies, which are mainly based on treating hyperglycemia, with insulin and other pharmacological agents are not completely efficient and can even lead to development of unwanted side effects. Scientific evidence suggests that bioactive compounds from teas and other plant-based foods, which are known source of natural antioxidants, could be an attractive strategy to preferentially treat and manage type 2 diabetes mellitus (T2DM) and thus, have significant therapeutic implications. In this review, we attempt an in-depth analysis and discussion of the current progress in our understanding of the antidiabetic potential of two commercialized South Africa herbal tisanes—Rooibos and Honeybush and their polyphenols.
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Muller M, Tredoux AGJ, de Villiers A. Application of Kinetically Optimised Online HILIC × RP-LC Methods Hyphenated to High Resolution MS for the Analysis of Natural Phenolics. Chromatographia 2018. [DOI: 10.1007/s10337-018-3662-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Chandrasekara A, Shahidi F. Herbal beverages: Bioactive compounds and their role in disease risk reduction - A review. J Tradit Complement Med 2018; 8:451-458. [PMID: 30302325 PMCID: PMC6174262 DOI: 10.1016/j.jtcme.2017.08.006] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 07/25/2017] [Accepted: 08/07/2017] [Indexed: 11/24/2022] Open
Abstract
There is a renewed interest in non-nutritive bioactive compounds of foods and beverages as 'lifespan nutrients' in the risk reduction of non-communicable diseases. Herbal beverages, consumed as part of a balanced diet, may improve the antioxidant status and enhance the overall health status. Herbal teas/beverages are rich sources of natural bioactive compounds such as carotenoids, phenolic acids, flavonoids, coumarins, alkaloids, polyacetylenes, saponins and terpenoids, among others. A wealth of available scientific evidence demonstrates that natural bioactive compounds render a number of diversified biological effects, such as antioxidant, antibacterial, antiviral, antiinflammatory, antiallergic, antithrombotic and vasodilatory actions, as well as antimutagenicity, anticarcinogenicity and antiaging effects. A number of herbal beverages are consumed globally and some beverages have gained more popularity than others depending on their geographical origin. However, in the era of globalization, ethnic barriers have gradually been removed and such commodities although from different areas, are now universally available as international health-pro products.
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Affiliation(s)
- Anoma Chandrasekara
- Department of Applied Nutrition, Wayamba University of Sri Lanka, Makandura, Gonawila, 60170, Sri Lanka
| | - Fereidoon Shahidi
- Department of Biochemistry, Memorial University of Newfoundland St. John's, NL, A1B 3X9, Canada
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Sasaki M, Nishida N, Shimada M. A Beneficial Role of Rooibos in Diabetes Mellitus: A Systematic Review and Meta-Analysis. Molecules 2018; 23:molecules23040839. [PMID: 29642387 PMCID: PMC6017582 DOI: 10.3390/molecules23040839] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 03/28/2018] [Accepted: 04/05/2018] [Indexed: 12/20/2022] Open
Abstract
In a rapid increase in cases of diabetes mellitus worldwide, there has been interested in the use of plant-derived polyphenols as nutraceuticals to prevent the onset and progression of diabetes mellitus and its associated complications. Aspalathus linearis, commonly known as rooibos, is a rich source of uncommon glycosylated plant polyphenols with various critical health-promoting properties, including the prevention and treatment of diabetes mellitus (DM). This study aimed to examine these effects by meta-analyzing the current evidence in diabetic rodent models. Peer-reviewed studies written in English from two databases, PubMed and Embase, were searched up to 28 February 2018. Studies reporting blood glucose levels in diabetic rodents with and without receiving rooibos extracts or their major phenolic compounds are included. Twelve studies enrolling 88 diabetic rodents treated with rooibos extracts or their polyphenols and 85 diabetic control males reported blood glucose levels. The pooled effect size was -0.89 (95% CI: -1.44 to -0.35) with a substantial heterogeneity (I² = 67.0%). This effect was likely to be modified by type of rooibos extracts and their polyphenols and treatment period. Blood glucose levels were significantly lower in diabetic rodent models treated with the phenolic compound rich in rooibos extracts, PPAG.
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Affiliation(s)
- Moe Sasaki
- Graduate School of Nutritional Science, Sagami Women's University, 2-1-1 Bunkyo, Minami-ku, Sagamihara, Kanagawa 252-0383, Japan.
| | - Nami Nishida
- Faculty of Nutritional Science, Sagami Women's University, 2-1-1 Bunkyo, Minami-ku, Sagamihara, Kanagawa 252-0383, Japan.
| | - Masako Shimada
- Graduate School of Nutritional Science, Sagami Women's University, 2-1-1 Bunkyo, Minami-ku, Sagamihara, Kanagawa 252-0383, Japan.
- Faculty of Nutritional Science, Sagami Women's University, 2-1-1 Bunkyo, Minami-ku, Sagamihara, Kanagawa 252-0383, Japan.
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Choi SY, Hong JY, Ko EJ, Kim BJ, Hong SW, Lim MH, Yeon SH, Son RH. Protective effects of fermented honeybush (Cyclopia intermedia) extract (HU-018) against skin aging: a randomized, double-blinded, placebo-controlled study. J COSMET LASER THER 2018; 20:313-318. [PMID: 29388846 DOI: 10.1080/14764172.2017.1418512] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Oxidative stress and photodamage resulting from ultraviolet radiation exposure play key roles in skin aging. Fermented Cyclopia intermedia, which is used to brew honeybush tea, exerts antioxidant and anti-wrinkle effects by inhibiting reactive oxygen species production and downregulating matrix metalloproteinase activity. OBJECTIVES This randomized, double-blinded, placebo-controlled study aimed to evaluate the efficacy and safety of fermented honeybush (Cyclopia intermedia) extract (HU-018) for skin rejuvenation. METHODS 120 Korean subjects with crow's feet wrinkles were randomized to receive either low-dose extract (400 mg/day), high-dose extract (800 mg/day), or placebo (negative control, only dextran) for 12 weeks. Wrinkles were evaluated using JANUS® and PRIMO pico®. Skin elasticity, hydration and transepidermal water loss were measured. RESULTS Global skin wrinkle grade was significantly improved in both low-dose and high-dose groups compared to placebo group, as well as for skin hydration and elasticity. Both the low- and high-dose groups showed significantly decreased TEWL compared to the placebo group. There were no adverse effects during the entire study period. CONCLUSION Our data indicate that HU-018 is effective for improving skin wrinkles, elasticity, and hydration. Therefore, daily supplementation with fermented honeybush could be helpful for protecting against skin aging.
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Affiliation(s)
- Sun Young Choi
- a Department of Dermatology, Seoul Paik Hospital , Inje University College of Medicine , Seoul , Korea
| | - Ji Yeon Hong
- b Department of Dermatology , Chung-Ang University College of Medicine , Seoul , Korea
| | - Eun Jung Ko
- c Department of Dermatology, Myongji Hospital , Seonam University College of Medicine , Goyang , Korea
| | - Beom Joon Kim
- b Department of Dermatology , Chung-Ang University College of Medicine , Seoul , Korea
| | - Sung-Woon Hong
- d Department of Clinical Research & Medical information , Huons Co., Ltd ., Gyeonggi-do , Korea
| | - Mi Hyoung Lim
- d Department of Clinical Research & Medical information , Huons Co., Ltd ., Gyeonggi-do , Korea
| | - Sung Hum Yeon
- e Botanical Drug Research Team , Huons Co., Ltd ., Gyeonggi-do , Korea
| | - Rak Ho Son
- e Botanical Drug Research Team , Huons Co., Ltd ., Gyeonggi-do , Korea
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Tobin J, Walach J, de Beer D, Williams PJ, Filzmoser P, Walczak B. Untargeted analysis of chromatographic data for green and fermented rooibos: Problem with size effect removal. J Chromatogr A 2017; 1525:109-115. [PMID: 29037593 DOI: 10.1016/j.chroma.2017.10.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 10/02/2017] [Accepted: 10/08/2017] [Indexed: 10/18/2022]
Abstract
While analyzing chromatographic data, it is necessary to preprocess it properly before exploration and/or supervised modeling. To make chromatographic signals comparable, it is crucial to remove the scaling effect, caused by differences in overall sample concentrations. One of the efficient methods of signal scaling is Probabilistic Quotient Normalization (PQN) [1]. However, it can be applied only to data for which the majority of features do not vary systematically among the studied classes of signals. When studying the influence of the traditional "fermentation" (oxidation) process on the concentration of 56 individual peaks detected in rooibos plant material, this assumption is not fulfilled. In this case, the only possible solution is the analysis of pairwise log-ratios, which are not influenced by the scaling constant. To estimate significant features, i.e., peaks differentiating the studied classes of samples (green and fermented rooibos plant material), we propose the application of rPLR (robust pair-wise log-ratios) as proposed by Walach et al. [2]. It allows for fast computation and identification of the significant features in terms of original variables (peaks) which is problematic, while working with the unfolded pair-wise log ratios. As demonstrated, it can be applied to designed data sets and in the case of contaminated data, it allows proper conclusions.
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Affiliation(s)
- Jade Tobin
- Plant Bioactives Group, Post-Harvest and Wine Technology Division, Agricultural Research Council (ARC), Infruitec-Nietvoorbij, Private Bag X5026, Stellenbosch, 7599, South Africa; Department of Food Science, Stellenbosch University, Private Bag X1, Matieland, Stellenbosch, South Africa
| | - Jan Walach
- Institute of Statistics and Mathematical Methods in Economics, Vienna University of Technology, Vienna, Austria
| | - Dalene de Beer
- Plant Bioactives Group, Post-Harvest and Wine Technology Division, Agricultural Research Council (ARC), Infruitec-Nietvoorbij, Private Bag X5026, Stellenbosch, 7599, South Africa; Department of Food Science, Stellenbosch University, Private Bag X1, Matieland, Stellenbosch, South Africa
| | - Paul J Williams
- Department of Food Science, Stellenbosch University, Private Bag X1, Matieland, Stellenbosch, South Africa
| | - Peter Filzmoser
- Institute of Statistics and Mathematical Methods in Economics, Vienna University of Technology, Vienna, Austria
| | - Beata Walczak
- University of Silesia, Institute of Chemistry, Szkolna 9, 400-006, Katowice, Poland.
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Alexander L, de Beer D, Muller M, van der Rijst M, Joubert E. Modifying the sensory profile of green honeybush ( Cyclopia maculata ) herbal tea through steam treatment. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2017.04.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ros-Santaella JL, Pintus E. Rooibos (Aspalathus linearis) extract enhances boar sperm velocity up to 96 hours of semen storage. PLoS One 2017; 12:e0183682. [PMID: 28837611 PMCID: PMC5570286 DOI: 10.1371/journal.pone.0183682] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Accepted: 08/09/2017] [Indexed: 02/04/2023] Open
Abstract
Rooibos (Aspalathus linearis) is a native shrub from South African fynbos and has become very popular in the last decades for its antioxidant and medicinal attributes. Several studies have shown its beneficial properties in numerous cell lines, but to date, the in vitro effects of rooibos extract on sperm cells are still unknown. In this study, boar semen was supplemented with four concentrations both of fermented and unfermented rooibos extracts during 96 h of liquid storage at 17°C. The effects of rooibos extracts on sperm velocity, membrane integrity, and acrosomal status were evaluated at 2 h, 48 h, and 96 h of semen storage. Overall our results indicate that rooibos extract enhances sperm velocity, protects the acrosome structure, and tends to preserve the membrane integrity during semen storage. Although the unfermented rooibos showed higher total polyphenol content and total antioxidant capacity than the fermented one, the latter had better effects on sperm velocity leading to, for instance, an increase of 30% in the rectilinear velocity (VSL) at 48 h compared to the control group. Taking into account the different storage times, we established a suitable range of extracts concentrations to be used in boar semen. The rooibos extract ought to be considered as a powerful and natural source of antioxidants for the preservation of boar semen.
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Affiliation(s)
- José Luis Ros-Santaella
- Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic
- * E-mail: (JLRS); (EP)
| | - Eliana Pintus
- Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic
- * E-mail: (JLRS); (EP)
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Shabalala S, Muller C, Louw J, Johnson R. Polyphenols, autophagy and doxorubicin-induced cardiotoxicity. Life Sci 2017; 180:160-170. [DOI: 10.1016/j.lfs.2017.05.003] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 04/27/2017] [Accepted: 05/02/2017] [Indexed: 01/07/2023]
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Muller CJF, Malherbe CJ, Chellan N, Yagasaki K, Miura Y, Joubert E. Potential of rooibos, its major C-glucosyl flavonoids, and Z-2-(β-D-glucopyranosyloxy)-3-phenylpropenoic acid in prevention of metabolic syndrome. Crit Rev Food Sci Nutr 2017; 58:227-246. [PMID: 27305453 DOI: 10.1080/10408398.2016.1157568] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Risk factors of type 2 diabetes mellitus (T2D) and cardiovascular disease (CVD) cluster together and are termed the metabolic syndrome. Key factors driving the metabolic syndrome are inflammation, oxidative stress, insulin resistance (IR), and obesity. IR is defined as the impairment of insulin to achieve its physiological effects, resulting in glucose and lipid metabolic dysfunction in tissues such as muscle, fat, kidney, liver, and pancreatic β-cells. The potential of rooibos extract and its major C-glucosyl flavonoids, in particular aspalathin, a C-glucoside dihydrochalcone, as well as the phenolic precursor, Z-2-(β-D-glucopyranosyloxy)-3-phenylpropenoic acid, to prevent the metabolic syndrome, will be highlighted. The mechanisms whereby these phenolic compounds elicit positive effects on inflammation, cellular oxidative stress and transcription factors that regulate the expression of genes involved in glucose and lipid metabolism will be discussed in terms of their potential in ameliorating features of the metabolic syndrome and the development of serious metabolic disease. An overview of the phenolic composition of rooibos and the changes during processing will provide relevant background on this herbal tea, while a discussion of the bioavailability of the major rooibos C-glucosyl flavonoids will give insight into a key aspect of the bioefficacy of rooibos.
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Affiliation(s)
- Christo J F Muller
- a Biomedical Research and Innovation Platform , South African Medical Research Council , Tygerberg , South Africa
| | - Christiaan J Malherbe
- b Post-Harvest and Wine Technology Division , Agricultural Research Council (ARC), Infruitec-Nietvoorbij , Stellenbosch , South Africa
| | - Nireshni Chellan
- a Biomedical Research and Innovation Platform , South African Medical Research Council , Tygerberg , South Africa
| | - Kazumi Yagasaki
- c Division of Applied Biological Chemistry , Institute of Agriculture, Tokyo University of Agriculture and Technology , Fuchu , Tokyo , Japan.,d Center for Bioscience Research and Education , Utsunomiya University , Utsunomiya , Tochigi , Japan
| | - Yutaka Miura
- c Division of Applied Biological Chemistry , Institute of Agriculture, Tokyo University of Agriculture and Technology , Fuchu , Tokyo , Japan
| | - Elizabeth Joubert
- b Post-Harvest and Wine Technology Division , Agricultural Research Council (ARC), Infruitec-Nietvoorbij , Stellenbosch , South Africa.,e Department of Food Science , Stellenbosch University, Private Bag X1, Matieland Stellenbosch , South Africa
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Bioactivity guided isolation of phytoestrogenic compounds from Cyclopia genistoides by the pER8:GUS reporter system. SOUTH AFRICAN JOURNAL OF BOTANY 2017. [DOI: 10.1016/j.sajb.2016.06.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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73
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Ntlhokwe G, Tredoux AGJ, Górecki T, Edwards M, Vestner J, Muller M, Erasmus L, Joubert E, Christel Cronje J, de Villiers A. Analysis of honeybush tea (Cyclopia spp.) volatiles by comprehensive two-dimensional gas chromatography using a single-stage thermal modulator. Anal Bioanal Chem 2017; 409:4127-4138. [DOI: 10.1007/s00216-017-0360-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 03/17/2017] [Accepted: 04/03/2017] [Indexed: 11/29/2022]
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Rahmasari R, Haruyama T, Charyasriwong S, Nishida T, Kobayashi N. Antiviral Activity of Aspalathus linearis against Human Influenza Virus. Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701200432] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Influenza A viruses are responsible for annual epidemics and occasional pandemics, which cause significant morbidity and mortality. The limited protection offered by influenza vaccination, and the emergence of drug-resistant influenza strains, highlight the urgent need for the development of novel anti-influenza drugs. However, the search for antiviral substances from the library of low molecular weight chemical compounds is limited. Thus, because of their natural diversity and accessibility, plants or plant-derived materials are rapidly becoming valuable sources for the discovery and development of new antiviral drugs. In this study, crude extracts of Aspalathus linearis, a plant reported to have anti-HIV activity, were evaluated in vitro for their activity against the influenza A virus. Of the extracts tested, an alkaline extract of Aspalathus linearis demonstrated the strongest inhibition against influenza A virus and could also inhibit different types of influenza viruses, including Oseltamivir-resistant influenza viruses A and B. Our time course of addition studies indicated that the alkaline extract of Aspalathus linearis exerts its antiviral effect predominantly during the late stages of the influenza virus replication process.
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Affiliation(s)
- Ratika Rahmasari
- Laboratory of Molecular Biology of Infectious Agents, Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Takahiro Haruyama
- Laboratory of Molecular Biology of Infectious Agents, Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
- Central Research Center, AVSS Corporation, 1-22 Wakaba-machi, Nagasaki 852-8137, Japan
| | - Siriwan Charyasriwong
- Laboratory of Molecular Biology of Infectious Agents, Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Tomoki Nishida
- Laboratory of Molecular Biology of Infectious Agents, Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Nobuyuki Kobayashi
- Laboratory of Molecular Biology of Infectious Agents, Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
- Central Research Center, AVSS Corporation, 1-22 Wakaba-machi, Nagasaki 852-8137, Japan
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Mansour A, Celano R, Mencherini T, Picerno P, Piccinelli AL, Foudil-Cherif Y, Csupor D, Rahili G, Yahi N, Nabavi SM, Aquino RP, Rastrelli L. A new cineol derivative, polyphenols and norterpenoids from Saharan myrtle tea (Myrtus nivellei): Isolation, structure determination, quantitative determination and antioxidant activity. Fitoterapia 2017; 119:32-39. [PMID: 28363507 DOI: 10.1016/j.fitote.2017.03.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Revised: 03/22/2017] [Accepted: 03/26/2017] [Indexed: 11/18/2022]
Abstract
The phytochemical profile of decoction and infusion, obtained from the dried leaves of M. nivellei, consumed as tea in Saharan region, was characterized by UHPLC-PDA-HRMS. Fourteen compounds were characterized and, to confirm the proposed structures a preparative procedure followed by NMR spectroscopy was applied. Compound 3 (2-hydroxy-1,8-cineole disaccharide) was a never reported whereas a bicyclic monoterpenoid glucoside (2), two ionol glucosides (1 and 12), a tri-galloylquinic acid (4), two flavonol glycosides (5 and 9), and a tetra-galloylglucose (7), were reported in Myrtus spp. for the first time. Five flavonol O-glycosides (6, 8, 10-11, and 14) togheter a flavonol (13) were also identified. Quantitative determination of phenolic constituents from decoction and infusion has been performed by HPLC-UV-PDA. The phenolic content was found to be 150.5 and 102.6mg/g in decoction and infusion corresponding to 73.8 and 23.6mg/100mL of a single tea cup, respectively. Myricetin 3-O-β-d-(6″-galloyl)glucopyranoside (5), isomyricitrin (6) and myricitrin (8) were the compounds present in the highest concentration. The free-radical scavenging activities of teas and isolated compounds was measured by the DPPH assay and compared with the values of other commonly used herbal teas (green and black teas). Decoction displayed higher potency in scavenging free-radicals than the infusion and green and black teas.
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Affiliation(s)
- Amira Mansour
- USTHB, University of Sciences and Technology Houari Boumediene, Faculty of Chemistry, BP 32 El-Alia, Bab-Ezzouar, 16111, Algiers, Algeria
| | - Rita Celano
- Dipartimento di Farmacia, University of Salerno, Via Giovanni Paolo II, 132 84084 Fisciano, SA, Italy
| | - Teresa Mencherini
- Dipartimento di Farmacia, University of Salerno, Via Giovanni Paolo II, 132 84084 Fisciano, SA, Italy
| | - Patrizia Picerno
- Dipartimento di Farmacia, University of Salerno, Via Giovanni Paolo II, 132 84084 Fisciano, SA, Italy
| | - Anna Lisa Piccinelli
- Dipartimento di Farmacia, University of Salerno, Via Giovanni Paolo II, 132 84084 Fisciano, SA, Italy
| | - Yazid Foudil-Cherif
- USTHB, University of Sciences and Technology Houari Boumediene, Faculty of Chemistry, BP 32 El-Alia, Bab-Ezzouar, 16111, Algiers, Algeria
| | - Dezső Csupor
- University of Szeged, Faculty of Pharmacy, Department of Pharmacognosy, 6720 Szeged, Eötvös u. 6, Magyarország, Hungary
| | - Ghania Rahili
- INRF National Institute of Forest Research, BP 37 Bainem, Algeria; USTHB, University of Sciences and Technology Houari Boumediene, Faculty of Biological Sciences, BP 32 El-Alia, Bab-Ezzouar, 16111, Algiers, Algeria
| | - Nassima Yahi
- USTHB, University of Sciences and Technology Houari Boumediene, Faculty of Biological Sciences, BP 32 El-Alia, Bab-Ezzouar, 16111, Algiers, Algeria
| | - Seyed Mohammad Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, P.O. Box 19395-5487, Tehran, Iran
| | - Rita Patrizia Aquino
- Dipartimento di Farmacia, University of Salerno, Via Giovanni Paolo II, 132 84084 Fisciano, SA, Italy
| | - Luca Rastrelli
- Dipartimento di Farmacia, University of Salerno, Via Giovanni Paolo II, 132 84084 Fisciano, SA, Italy.
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Bowles SL, Ntamo Y, Malherbe CJ, Kappo AMP, Louw J, Muller CJF. Intestinal transport and absorption of bioactive phenolic compounds from a chemically characterized aqueous extract of Athrixia phylicoides. JOURNAL OF ETHNOPHARMACOLOGY 2017; 200:45-50. [PMID: 28213108 DOI: 10.1016/j.jep.2017.02.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 02/08/2017] [Accepted: 02/13/2017] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Athrixia phylicoides, popularly known as "bush tea", is an indigenous aromatic shrub found in mountainous and grassland areas of the northern and eastern parts of southern Africa. The plant is traditionally used for the treatment of several ailments, including coughing, treating infected wounds, treating boils and sore throat, hypertension and heart disease. Potential anti-diabetic effects have also been demonstrated in vitro. AIM OF THE STUDY To investigate the intestinal transport of prominent phenolic constituents, across a fully differentiated Caco-2 monolayer, using a characterized aqueous extract of A. phylicoides, previously shown to have bioactivity. MATERIALS AND METHODS HPLC-DAD and LC/MS analyses were used to identify the major phenolic compounds within the extract. Intestinal transport of the phenolic compounds was assessed using a differentiated Caco-2 monolayer model in order to predict bioavailability and identify metabolite formation. Rate of transport, efflux and percentage cross-over were calculated for the respective phenolic compounds. RESULTS Nine prominent compounds, present in the aqueous extract of A. phylicoides, were identified. Of these, three phenolic acids (protocatechuic acid, caffeic acid and para-coumaric acid), crossed the Caco-2 cell monolayer in significant amounts, with Papp values of 4.52, 4.35 (×10-6cm/s) and 2.38 (×10-5cm/s), respectively. para-Coumaric acid was shown to have the highest predicted bioavailability. CONCLUSIONS Para-Coumaric acid, identified for the first time in A. phylicoides, was shown to have the highest predicted bioavailability suggesting that it could play a major role in the bioactivity of A. phylicoides.
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Affiliation(s)
- Sandra L Bowles
- Biomedical Research and Innovation Platform, South African Medical Research Council, P.O. Box 19070, Tygerberg 7505, South Africa.
| | - Yonela Ntamo
- Biomedical Research and Innovation Platform, South African Medical Research Council, P.O. Box 19070, Tygerberg 7505, South Africa; Department of Biochemistry and Microbiology, University of Zululand, Kwa-Dlangezwa 3886, South Africa.
| | - Christiaan J Malherbe
- Plant Bioactives Group, Post-Harvest and Wine Technology Division, Agricultural Research Council, Infruitec-Nietvoorbij, Private Bag X5026, Stellenbosch 7599, South Africa.
| | - Abidemi M P Kappo
- Department of Biochemistry and Microbiology, University of Zululand, Kwa-Dlangezwa 3886, South Africa.
| | - Johan Louw
- Biomedical Research and Innovation Platform, South African Medical Research Council, P.O. Box 19070, Tygerberg 7505, South Africa; Department of Biochemistry and Microbiology, University of Zululand, Kwa-Dlangezwa 3886, South Africa.
| | - Christo J F Muller
- Biomedical Research and Innovation Platform, South African Medical Research Council, P.O. Box 19070, Tygerberg 7505, South Africa; Department of Biochemistry and Microbiology, University of Zululand, Kwa-Dlangezwa 3886, South Africa; Department of Medical Physiology, Stellenbosch University, Tygerberg 7507, South Africa.
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Walters NA, de Villiers A, Joubert E, de Beer D. Improved HPLC method for rooibos phenolics targeting changes due to fermentation. J Food Compost Anal 2017. [DOI: 10.1016/j.jfca.2016.11.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Arries WJ, Tredoux AGJ, de Beer D, Joubert E, de Villiers A. Evaluation of capillary electrophoresis for the analysis of rooibos and honeybush tea phenolics. Electrophoresis 2016; 38:897-905. [PMID: 27921291 DOI: 10.1002/elps.201600349] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 11/22/2016] [Accepted: 11/25/2016] [Indexed: 12/11/2022]
Abstract
Rooibos and honeybush are popular herbal teas produced from the shrubs of Aspalathus linearis and Cyclopia spp., respectively, which are indigenous to South Africa. Both herbal teas are rich in polyphenols and their consumption is associated with several health benefits, partly ascribed to their phenolic constituents. Quantification of phenolics in extracts and teas for quality control and research purposes is generally performed using HPLC, although dedicated and often species-specific methods are required. CE offers an attractive alternative to HPLC for the analysis of phenolics, with potential benefits in terms of efficiency, speed and operating costs. In this contribution, we report quantitative CZE methods for the analysis of the principal honeybush and rooibos phenolics. Optimal separation for honeybush and rooibos phenolics was achieved in 21 and 32 min, respectively, with good linearity and repeatability. Quantitative data for extracts of "unfermented" and "fermented" rooibos and two honeybush species were statistically comparable with those obtained by HPLC for the majority of compounds. The developed methods demonstrated their utility for the comparison of phenolic contents between different species and as a function of manufacturing processes, thus offering cost effective, although less sensitive and robust, alternatives to HPLC analysis.
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Affiliation(s)
- William J Arries
- Department of Chemistry and Polymer Science, Stellenbosch University, Matieland, South Africa
| | - Andreas G J Tredoux
- Department of Chemistry and Polymer Science, Stellenbosch University, Matieland, South Africa
| | - Dalene de Beer
- Post-Harvest and Wine Technology Division, Agricultural Research Council, Stellenbosch, South Africa
| | - Elizabeth Joubert
- Post-Harvest and Wine Technology Division, Agricultural Research Council, Stellenbosch, South Africa.,Department of Food Science, Stellenbosch University, Matieland, South Africa
| | - André de Villiers
- Department of Chemistry and Polymer Science, Stellenbosch University, Matieland, South Africa
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79
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Smith C, Swart AC. Rooibos ( Aspalathus linearis ) facilitates an anti-inflammatory state, modulating IL-6 and IL-10 while not inhibiting the acute glucocorticoid response to a mild novel stressor in vivo. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.08.055] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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80
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Hepatotoxicity due to red bush tea consumption: a case report. J Clin Anesth 2016; 35:96-98. [DOI: 10.1016/j.jclinane.2016.07.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 06/09/2016] [Accepted: 07/14/2016] [Indexed: 11/18/2022]
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81
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82
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van Wilgen BW, Carruthers J, Cowling RM, Esler KJ, Forsyth AT, Gaertner M, Hoffman MT, Kruger FJ, Midgley GF, Palmer G, Pence GQK, Raimondo DC, Richardson DM, van Wilgen NJ, Wilson JR. Ecological research and conservation management in the Cape Floristic Region between 1945 and 2015: History, current understanding and future challenges. ACTA ACUST UNITED AC 2016. [DOI: 10.1080/0035919x.2016.1225607] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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83
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Magcwebeba T, Swart P, Swanevelder S, Joubert E, Gelderblom W. Anti-Inflammatory Effects of Aspalathus linearis and Cyclopia spp. Extracts in a UVB/Keratinocyte (HaCaT) Model Utilising Interleukin-1α Accumulation as Biomarker. Molecules 2016; 21:molecules21101323. [PMID: 27706097 PMCID: PMC6274390 DOI: 10.3390/molecules21101323] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Revised: 09/16/2016] [Accepted: 09/26/2016] [Indexed: 01/06/2023] Open
Abstract
Ultraviolet B (UVB) radiation is one of the major predisposing risk factors of skin cancer. The anticancer and photoprotective effects of unoxidized rooibos (Aspalathus linearis) and honeybush (Cyclopia) herbal teas, containing high levels of dihydrochalones and xanthones, respectively, have been demonstrated in skin cancer models in vivo. In the current study, the anti-inflammatory effects of methanol and aqueous extracts of these herbal teas were investigated in a UVB/HaCaT keratinocyte model with intracellular interleukin-1α (icIL-1α) accumulation as a biomarker. Extracts of green tea (Camellia sinensis) served as benchmark. Both extracts of green tea and rooibos, as well as the aqueous extract of C. intermedia, enhanced UVB-induced inhibition of cell viability, proliferation and induction of apoptosis, facilitating the removal of icIL-1α. The underlying mechanisms may involve mitochondrial dysfunction exhibiting pro-oxidant responses via polyphenol-iron interactions. The methanol extracts of honeybush, however, protected against UVB-induced reduction of cell growth parameters, presumably via antioxidant mechanisms that prevented the removal of highly inflamed icIL-1α-containing keratinocytes via apoptosis. The dual antioxidant and/or pro-oxidant role of the polyphenolic herbal tea constituents should be considered in developing preventive strategies against UVB-induced skin carcinogenesis. The indirect removal of UVB damaged keratinocytes by herbal tea extracts via apoptosis may find application in the prevention of photo-induced inflammation.
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Affiliation(s)
- Tandeka Magcwebeba
- Department of Biochemistry, Stellenbosch University, Private Bag X1, Matieland (Stellenbosch) 7602, South Africa.
| | - Pieter Swart
- Department of Biochemistry, Stellenbosch University, Private Bag X1, Matieland (Stellenbosch) 7602, South Africa.
| | - Sonja Swanevelder
- Biostatistics Unit, South African Medical Research Council, P.O. Box 19070, Tygerberg 7505, South Africa.
| | - Elizabeth Joubert
- Post-Harvest and Wine Technology Division, Agricultural Research Council (Infruitec-Nietvoorbij), Private Bag X5026, Stellenbosch 7599, South Africa.
- Department of Food Science, Stellenbosch University, Private Bag X1, Matieland (Stellenbosch) 7602, South Africa.
| | - Wentzel Gelderblom
- Department of Biochemistry, Stellenbosch University, Private Bag X1, Matieland (Stellenbosch) 7602, South Africa.
- Institute of Biomedical and Microbial Biotechnology, Cape Peninsula University of Technology, P.O. Box 1906, Bellville 7535, South Africa.
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84
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Visser K, Zierau O, Macejová D, Goerl F, Muders M, Baretton GB, Vollmer G, Louw A. The phytoestrogenic Cyclopia extract, SM6Met, increases median tumor free survival and reduces tumor mass and volume in chemically induced rat mammary gland carcinogenesis. J Steroid Biochem Mol Biol 2016; 163:129-35. [PMID: 27142456 DOI: 10.1016/j.jsbmb.2016.04.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 04/28/2016] [Accepted: 04/29/2016] [Indexed: 02/07/2023]
Abstract
SM6Met, a phytoestrogenic extract of Cyclopia subternata indigenous to the Western Cape province of South Africa, displays estrogenic attributes with potential for breast cancer chemoprevention. In this study, we report that SM6Met, in the presence of estradiol, induces a significant cell cycle G0/G1 phase arrest similar to the selective estrogen receptor modulator, tamoxifen. Furthermore, as a proof of concept, in the N-Methyl-N-nitrosourea induced rat mammary gland carcinogenesis model, SM6Met increases tumor latency by 7days and median tumor free survival by 42 days, while decreasing palpable tumor frequency by 32%, tumor mass by 40%, and tumor volume by 53%. Therefore, the current study provides proof of concept that SM6Met has definite potential as a chemopreventative agent against the development and progression of breast cancer.
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MESH Headings
- Animals
- Antineoplastic Agents, Phytogenic/isolation & purification
- Antineoplastic Agents, Phytogenic/pharmacology
- Cell Line, Tumor
- Cyclopia Plant/chemistry
- Estrogen Antagonists/pharmacology
- Female
- G1 Phase Cell Cycle Checkpoints/drug effects
- G1 Phase Cell Cycle Checkpoints/genetics
- Humans
- Mammary Glands, Animal/drug effects
- Mammary Glands, Animal/metabolism
- Mammary Glands, Animal/pathology
- Mammary Neoplasms, Experimental/chemically induced
- Mammary Neoplasms, Experimental/drug therapy
- Mammary Neoplasms, Experimental/mortality
- Mammary Neoplasms, Experimental/pathology
- Methylnitrosourea
- Phytoestrogens/isolation & purification
- Phytoestrogens/pharmacology
- Rats
- Receptors, Estrogen/antagonists & inhibitors
- Receptors, Estrogen/genetics
- Receptors, Estrogen/metabolism
- Survival Analysis
- Tamoxifen/pharmacology
- Tumor Burden/drug effects
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Affiliation(s)
- Koch Visser
- Biochemistry Department, Stellenbosch University, Stellenbosch, Western Cape, South Africa
| | - Oliver Zierau
- Molecular Cell Physiology and Endocrinology, Institute for Zoology, Technische Universität Dresden, Dresden, Germany
| | - Dana Macejová
- Institute of Experimental Endocrinology, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Florian Goerl
- Institute for Pathology, Radeberg, Germany; Institute for Pathology, University Clinic Carl-Gustav-Carus, Dresden, Germany
| | - Michael Muders
- Institute for Pathology, University Clinic Carl-Gustav-Carus, Dresden, Germany
| | - Gustavo B Baretton
- Institute for Pathology, University Clinic Carl-Gustav-Carus, Dresden, Germany
| | - Günter Vollmer
- Molecular Cell Physiology and Endocrinology, Institute for Zoology, Technische Universität Dresden, Dresden, Germany
| | - Ann Louw
- Biochemistry Department, Stellenbosch University, Stellenbosch, Western Cape, South Africa.
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85
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Magcwebeba TU, Riedel S, Swanevelder S, Swart P, De Beer D, Joubert E, Andreas Gelderblom WC. The potential role of polyphenols in the modulation of skin cell viability by Aspalathus linearis and Cyclopia spp. herbal tea extracts in vitro. ACTA ACUST UNITED AC 2016; 68:1440-1453. [PMID: 27671741 DOI: 10.1111/jphp.12629] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 07/26/2016] [Indexed: 11/30/2022]
Abstract
OBJECTIVES The relationship between polyphenol constituents, antioxidant properties of aqueous and methanol extracts of green tea (Camellia sinensis), the herbal teas, rooibos (Aspalathus linearis) and honeybush (Cyclopia spp.), against skin cell viability was investigated in vitro. METHODS The effect of extracts, characterised in terms of polyphenol content and antioxidant properties, on cell viability of premalignant, normal and malignant skin cells was determined. KEY FINDINGS Phenolic composition, particularly high levels of potent antioxidants, of rooibos and green tea methanol extracts was associated with a strong reduction in cell viability specifically targeting premalignant cells. In contrast, the aqueous extracts of Cyclopia spp. were more effective in reducing cell viability. This correlated with a relatively high flavanol/proanthocyanidin content and ABTS radical cation scavenging capacity. The major green tea flavanol (epigallocatechin gallate) and rooibos dihydrochalcone (aspalathin) exhibited differential effects against cell viability, while the major honeybush xanthone (mangiferin) and flavanone (hesperidin) lacked any effect presumably due to a cytoprotective effect. The underlying mechanisms against skin cell viability are likely to involve mitochondrial dysfunction resulting from polyphenol-iron interactions. CONCLUSIONS The polyphenol constituents and antioxidant parameters of herbal tea extracts are useful tools to predict their activity against skin cell survival in vitro and potential chemopreventive effects in vivo.
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Affiliation(s)
| | - Sylvia Riedel
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, South Africa
| | - Sonja Swanevelder
- Biostatistics Unit, South African Medical Research Council, Tygerberg, South Africa
| | - Pieter Swart
- Department of Biochemistry, Stellenbosch University, Stellenbosch, South Africa
| | - Dalene De Beer
- Agricultural Research Council, Infruitec-Nietvoorbij, Stellenbosch, South Africa
| | - Elizabeth Joubert
- Agricultural Research Council, Infruitec-Nietvoorbij, Stellenbosch, South Africa.,Department of Food Science, Stellenbosch University, Stellenbosch, South Africa
| | - Wentzel Christoffel Andreas Gelderblom
- Department of Biochemistry, Stellenbosch University, Stellenbosch, South Africa. .,Institute of Biomedical and Microbial Biotechnology, Cape Peninsula University of Technology, Bellville, South Africa.
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86
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Fila G, Kasimova K, Arenas Y, Nakonieczna J, Grinholc M, Bielawski KP, Lilge L. Murine Model Imitating Chronic Wound Infections for Evaluation of Antimicrobial Photodynamic Therapy Efficacy. Front Microbiol 2016; 7:1258. [PMID: 27555843 PMCID: PMC4977341 DOI: 10.3389/fmicb.2016.01258] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Accepted: 07/29/2016] [Indexed: 11/22/2022] Open
Abstract
It is generally acknowledged that the age of antibiotics could come to an end, due to their widespread, and inappropriate use. Particularly for chronic wounds alternatives are being thought. Antimicrobial Photodynamic Therapy (APDT) is a potential candidate, and while approved for some indications, such as periodontitis, chronic sinusitis and other niche indications, its use in chronic wounds is not established. To further facilitate the development of APDT in chronic wounds we present an easy to use animal model exhibiting the key hallmarks of chronic wounds, based on full-thickness skin wounds paired with an optically transparent cover. The moisture-retaining wound exhibited rapid expansion of pathogen colonies up to 8 days while not jeopardizing the host survival. Use of two bioluminescent pathogens; methicillin resistant Staphylococcus aureus (MRSA) and Pseudomonas aeruginosa permits real time monitoring of the pathogens. The murine model was employed to evaluate the performance of four different photosensitizers as mediators in Photodynamic Therapy. While all four photosensitizers, Rose Bengal, porphyrin TMPyP, New Methylene Blue, and TLD1411 demonstrated good to excellent antimicrobial efficacy in planktonic solutions at 1 to 50 μM concentrations, whereas in in vivo the growth delay was limited with 24–48 h delay in pathogen expansion for MRSA, and we noticed longer growth suppression of P. aeruginosa with TLD1411 mediated Photodynamic Therapy. The murine model will enable developing new strategies for enhancement of APDT for chronic wound infections.
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Affiliation(s)
- Grzegorz Fila
- Laboratory of Molecular Diagnostics, Department of Biotechnology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk Gdansk, Poland
| | - Kamola Kasimova
- Princess Margaret Cancer Centre, University Health Network Toronto, ON, Canada
| | | | - Joanna Nakonieczna
- Laboratory of Molecular Diagnostics, Department of Biotechnology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk Gdansk, Poland
| | - Mariusz Grinholc
- Laboratory of Molecular Diagnostics, Department of Biotechnology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk Gdansk, Poland
| | - Krzysztof P Bielawski
- Laboratory of Molecular Diagnostics, Department of Biotechnology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk Gdansk, Poland
| | - Lothar Lilge
- Princess Margaret Cancer Centre, University Health NetworkToronto, ON, Canada; Department of Medical Biophysics, University of TorontoToronto, ON, Canada
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87
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Transition rates of selected metals determined in various types of teas (Camellia sinensis L. Kuntze) and herbal/fruit infusions. Food Chem 2016; 215:22-30. [PMID: 27542446 DOI: 10.1016/j.foodchem.2016.07.093] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 06/23/2016] [Accepted: 07/12/2016] [Indexed: 11/23/2022]
Abstract
Teas and raw materials used as ingredients of herbal and fruit infusions (HFI) were analysed by means of ICP-MS for their content of aluminium, arsenic, cadmium, copper, lead and mercury in the dry product and in the infusion. Samples of tea (Camellia sinensis L. Kuntze) were selected to include different origins, types (black, green), leaf grades (whole leaf, broken, fannings, dust) and manufacturing techniques (orthodox, "crush, tear, curl"). The selected HFI raw materials (chamomile, elderberries, fennel, hibiscus, mate, peppermint, rooibos and rose hip) cover the most important matrices (flower, fruit, seed, herb, leaf) and reflect the economic significance of these HFI materials in trade. Infusions were prepared under standardised conditions representing typical household brewing. Transition rates for the investigated metals vary significantly but are mostly well below 100%. We propose default transition rates for metals to avoid overestimation of exposure levels from tea/HFI consumption.
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88
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Rusinek-Prystupa E, Marzec Z, Sembratowicz I, Samolińska W, Kiczorowska B, Kwiecień M. Content of Selected Minerals and Active Ingredients in Teas Containing Yerba Mate and Rooibos. Biol Trace Elem Res 2016; 172:266-275. [PMID: 26686675 DOI: 10.1007/s12011-015-0588-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 12/08/2015] [Indexed: 10/22/2022]
Abstract
The study aimed to determine the content of selected elements: sodium, potassium, copper, zinc, iron, manganese and active ingredients such as phenolic acids and tannins in teas containing Yerba Mate and Rooibos cultivated in various areas. The study material comprised six samples of Yerba Mate teas and of Rooibos teas, both tea bags and leaves, purchased in Puławy and online via Allegro. In total, 24 samples were tested. Yerba Mate was particularly abundant in Mn and Fe. The richest source of these elements was Yerba Mate Yer-Vita (2261.3 mg · kg(-1) d.m.) and (691.6 mg · kg(-1) d.m.). The highest content of zinc was determined in Yerba Mate Amanda with lime (106.0 mg · kg(-1) d.m.), while copper was most abundant in Yerba Mate Big-Active cocoa and vanilla (14.05 mg · kg(-1) d.m.). In Rooibos, the content of sodium was several times higher than in Yerba Mate. A clear difference was observed in the content of minerals in dry weight of the examined products, which could be a result of both the taxonomic distinctness and the origin of the raw material. Leaf teas turned out to be a better source of tannins; on the other hand, tea bags contained substantially more phenolic acids. The richest source of phenolic acids was Yer-Vita in bags (1.8 %), and the highest amount of tannins was recorded in the leaf tea Green Goucho caramel and dark chocolate (9.04 g · 100 g(-1) d.m.). In Rooibos products, the highest content of phenolic acids was recorded in tea bags (Savannah with honey and vanilla 0.96 %), and tannins in (Lord Nelson with strawberry and cream 7.99 g · 100 g (-1) d.m.).
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Affiliation(s)
- Elżbieta Rusinek-Prystupa
- Chair of Biochemistry and Toxicology, University of Life Sciences in Lublin, 13 Akademicka Street, 20-950, Lublin, Poland.
| | - Zbigniew Marzec
- Chair and Institute of Food and Nutrition, Medical University of Lublin, Lublin, Poland
| | - Iwona Sembratowicz
- Chair of Biochemistry and Toxicology, University of Life Sciences in Lublin, 13 Akademicka Street, 20-950, Lublin, Poland
| | - Wioletta Samolińska
- Institute of Animal Nutrition and Bromatology, University of Life Sciences in Lublin, Lublin, Poland
| | - Bożena Kiczorowska
- Institute of Animal Nutrition and Bromatology, University of Life Sciences in Lublin, Lublin, Poland
| | - Małgorzata Kwiecień
- Institute of Animal Nutrition and Bromatology, University of Life Sciences in Lublin, Lublin, Poland
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89
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Surya S, Geethanandan K, Sadasivan C, Haridas M. Gallic acid binding to Spatholobus parviflorus lectin provides insight to its quaternary structure forming. Int J Biol Macromol 2016; 91:696-702. [PMID: 27283232 DOI: 10.1016/j.ijbiomac.2016.06.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Revised: 06/02/2016] [Accepted: 06/05/2016] [Indexed: 11/25/2022]
Abstract
Therapeutic effects of gallic acid (GA) have already been extensively studied. However, its interaction with lectins has not gained much attention. It is of interest to validate the binding profile of GA with Spatholobus parviflorus seed lectin. A combination of Isothermal Titration Calorimetry (ITC), haemagglutination assay and molecular docking was applied on SPL-GA interaction. ITC results showed four binding sites, stoichiometry, n=4, irrespective of the ratio of SPL:GA taken for titration. Difference among the four binding sites of a single molecule of SPL with regard to GA binding kinetic parameters was consistently varying. Similarly, the glide scores obtained for GA in the four different binding clefts of SPL were also conformed to the ITC. The binding of GA on SPL without affecting its sugar binding property could be considered as a boon for glycobiological research. From the presented studies, it could be proposed that the SPL-GA interactions may facilitate drug delivery by specific targeting/attachment by profiling of cell-surface glycans, followed by controlled release of drugs.
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Affiliation(s)
- Sukumaran Surya
- Inter University Centre for Bioscience and Department of Biotechnology and Microbiology, Kannur University, Thalassery Campus, Kannur 670661, India
| | - Krishnan Geethanandan
- Inter University Centre for Bioscience and Department of Biotechnology and Microbiology, Kannur University, Thalassery Campus, Kannur 670661, India
| | - Chittalakkottu Sadasivan
- Inter University Centre for Bioscience and Department of Biotechnology and Microbiology, Kannur University, Thalassery Campus, Kannur 670661, India
| | - Madhathilkovilakathu Haridas
- Inter University Centre for Bioscience and Department of Biotechnology and Microbiology, Kannur University, Thalassery Campus, Kannur 670661, India.
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90
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Postma A, Slabbert E, Postma F, Jacobs K. Soil bacterial communities associated with natural and commercialCyclopiaspp. FEMS Microbiol Ecol 2016; 92:fiw016. [DOI: 10.1093/femsec/fiw016] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/25/2016] [Indexed: 12/16/2022] Open
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91
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Gerber GSFW, Fox LT, Gerber M, du Preez JL, van Zyl S, Boneschans B, du Plessis J. Stability, clinical efficacy, and antioxidant properties of Honeybush extracts in semi-solid formulations. Pharmacogn Mag 2015; 11:S337-51. [PMID: 26664024 PMCID: PMC4653346 DOI: 10.4103/0973-1296.166063] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background: Honeybush extracts (Cyclopia spp.) can be incorporated into skin care products to treat conditions such as skin dryness and can function as an anti-oxidant. Objective: To formulate Honeybush formulations and test it for antioxidant activity, skin penetration, and skin hydrating effects. Materials and Methods: Semi-solid formulations containing either Cyclopia maculata (2%) or Cyclopia genistoides (2%) underwent accelerated stability studies. Membrane release studies, Franz cell skin diffusion and tape stripping studies were performed. Antioxidant potential was determined with the 2-thiobarbituric acid-assay and clinical efficacy studies were performed to determine the formulations' effect on skin hydration, scaliness, and smoothness after 2 weeks of treatment on the volar forearm. Results: The formulations were unstable over 3 months. Membrane release, skin diffusion studies, and tape stripping showed that both formulations had inconclusive results due to extremely low concentrations mangiferin and hesperidin present in the Franz cell receptor compartments, stratum corneum-epidermis, and epidermis-dermis layers of the skin. Honeybush extracts showed antioxidant activity with concentrations above 0.6250 mg/ml when compared to the toxin; whereas mangiferin and hesperidin did not show any antioxidant activity on their own. The semisolid formulations showed the potential to emit their own antioxidant activity. Both formulations improved skin smoothness, although they did not improve skin hydration compared to the placebos. C. maculata reduced the skin scaliness to a larger extent than the placebos and C. genistoides. Conclusion: Honeybush formulations did not penetrate the skin but did, however, show antioxidant activity and the potential to be used to improve skin scaliness and smoothness.
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Affiliation(s)
- Gezina S F W Gerber
- Centre of Excellence for Pharmaceutical Sciences, Faculty of Health Sciences, North-West University, Private Bag X6001, South Africa
| | - Lizelle T Fox
- Centre of Excellence for Pharmaceutical Sciences, Faculty of Health Sciences, North-West University, Private Bag X6001, South Africa
| | - Minja Gerber
- Centre of Excellence for Pharmaceutical Sciences, Faculty of Health Sciences, North-West University, Private Bag X6001, South Africa
| | - Jan L du Preez
- Centre of Excellence for Pharmaceutical Sciences, Faculty of Health Sciences, North-West University, Private Bag X6001, South Africa
| | - Sterna van Zyl
- Centre for Pharmaceutical and Biomedical Services, Faculty of Health Sciences, North-West University, Potchefstroom, 2520, South Africa
| | - Banie Boneschans
- Centre for Pharmaceutical and Biomedical Services, Faculty of Health Sciences, North-West University, Potchefstroom, 2520, South Africa
| | - Jeanetta du Plessis
- Centre of Excellence for Pharmaceutical Sciences, Faculty of Health Sciences, North-West University, Private Bag X6001, South Africa
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92
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Schulze AE, De Beer D, Mazibuko SE, Muller CJF, Roux C, Willenburg EL, Nyunaï N, Louw J, Manley M, Joubert E. Assessing similarity analysis of chromatographic fingerprints of Cyclopia subternata extracts as potential screening tool for in vitro glucose utilisation. Anal Bioanal Chem 2015; 408:639-49. [PMID: 26542834 DOI: 10.1007/s00216-015-9147-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 10/19/2015] [Accepted: 10/22/2015] [Indexed: 12/16/2022]
Abstract
Similarity analysis of the phenolic fingerprints of a large number of aqueous extracts of Cyclopia subternata, obtained by high-performance liquid chromatography (HPLC), was evaluated as a potential tool to screen extracts for relative bioactivity. The assessment was based on the (dis)similarity of their fingerprints to that of a reference active extract of C. subternata, proven to enhance glucose uptake in vitro and in vivo. In vitro testing of extracts, selected as being most similar (n = 5; r ≥ 0.962) and most dissimilar (n = 5; r ≤ 0.688) to the reference active extract, showed that no clear pattern in terms of relative glucose uptake efficacy in C2C12 myocytes emerged, irrespective of the dose. Some of the most dissimilar extracts had higher glucose-lowering activity than the reference active extract. Principal component analysis revealed the major compounds responsible for the most variation within the chromatographic fingerprints, as mangiferin, isomangiferin, iriflophenone-3-C-β-D-glucoside-4-O-β-D-glucoside, iriflophenone-3-C-β-D-glucoside, scolymoside, and phloretin-3',5'-di-C-β-D-glucoside. Quantitative analysis of the selected extracts showed that the most dissimilar extracts contained the highest mangiferin and isomangiferin levels, whilst the most similar extracts had the highest scolymoside content. These compounds demonstrated similar glucose uptake efficacy in C2C12 myocytes. It can be concluded that (dis)similarity of chromatographic fingerprints of extracts of unknown activity to that of a proven bioactive extract does not necessarily translate to lower or higher bioactivity.
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Affiliation(s)
- Alexandra E Schulze
- Department of Food Science, Stellenbosch University, Private Bag X1, Matieland, Stellenbosch, 7602, South Africa.,Department of Viticulture and Oenology, Stellenbosch University, Private Bag X1, Matieland, Stellenbosch, 7602, South Africa
| | - Dalene De Beer
- Post-Harvest and Wine Technology Division, Agricultural Research Council (ARC), Infruitec-Nietvoorbij, Private Bag X5026, Stellenbosch, 7599, South Africa
| | - Sithandiwe E Mazibuko
- Diabetes Discovery Platform, South African Medical Research Council, P.O. Box 19070, Tygerberg, 7505, South Africa
| | - Christo J F Muller
- Diabetes Discovery Platform, South African Medical Research Council, P.O. Box 19070, Tygerberg, 7505, South Africa
| | - Candice Roux
- Diabetes Discovery Platform, South African Medical Research Council, P.O. Box 19070, Tygerberg, 7505, South Africa
| | - Elize L Willenburg
- Post-Harvest and Wine Technology Division, Agricultural Research Council (ARC), Infruitec-Nietvoorbij, Private Bag X5026, Stellenbosch, 7599, South Africa
| | - Nyemb Nyunaï
- Diabetes Discovery Platform, South African Medical Research Council, P.O. Box 19070, Tygerberg, 7505, South Africa.,Medical Research Center, Institute of Medical Research and Medicinal Plants Studies, P.O. Box 3805, Yaoundé, Cameroon
| | - Johan Louw
- Diabetes Discovery Platform, South African Medical Research Council, P.O. Box 19070, Tygerberg, 7505, South Africa
| | - Marena Manley
- Department of Food Science, Stellenbosch University, Private Bag X1, Matieland, Stellenbosch, 7602, South Africa
| | - Elizabeth Joubert
- Department of Food Science, Stellenbosch University, Private Bag X1, Matieland, Stellenbosch, 7602, South Africa. .,Post-Harvest and Wine Technology Division, Agricultural Research Council (ARC), Infruitec-Nietvoorbij, Private Bag X5026, Stellenbosch, 7599, South Africa.
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93
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Lee W, Kim KM, Bae JS. Ameliorative Effect of Aspalathin and Nothofagin from Rooibos (Aspalathus linearis) on HMGB1-Induced Septic ResponsesIn VitroandIn Vivo. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2015. [DOI: 10.1142/s0192415x15500573] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The ubiquitous nuclear protein, high mobility group box 1 (HMGB1), is released by activated macrophages and human umbilical vein endothelial cells (HUVECs) and functions as a late mediator of experimental sepsis. Aspalathin (Asp) and nothofagin (Not), which have been reported to have anti-oxidant activity, are the two major active dihydrochalcones found in green rooibos. In this study, we investigated the antiseptic effects and underlying mechanisms of Asp and Not against HMGB1-mediated septic responses in HUVECs and mice. The anti-inflammatory activities of Asp and Not were determined by measuring permeability, monocyte adhesion and migration, and activation of proinflammatory proteins in HMGB1-activated HUVECs and mice. According to the results, Asp and Not effectively inhibited lipopolysaccharide (LPS)-induced release of HMGB1, and suppressed HMGB1-mediated septic responses, such as hyperpermeability, adhesion and migration of leukocytes, and expression of cell adhesion molecules. In addition, Asp and Not suppressed the production of tumor necrosis factor alpha (TNF-α) and interleukin 6 (IL-6), the activation of nuclear factor-κB (NF-κB) and extracellular signal-regulated kinases 1 and 2 (ERK1/2) by HMGB1. Collectively, these results indicate that Asp and Not could be potential therapeutic agents for the treatment of various severe vascular inflammatory diseases via the inhibition of the HMGB1 signaling pathway.
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Affiliation(s)
- Wonhwa Lee
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, Republic of Korea
- BK21 Plus KNU Biomedical Convergence Program, Department of Biochemistry and Cell Biology, School of Medicine, Republic of Korea
| | - Kyung-Min Kim
- Division of Plant Biosciences, School of Applied BioSciences, College of Agriculture and Life Science, Kyungpook National University, Daegu 702-701, Republic of Korea
| | - Jong-Sup Bae
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, Republic of Korea
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94
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Mortimer M, Visser K, de Beer D, Joubert E, Louw A. Divide and Conquer May Not Be the Optimal Approach to Retain the Desirable Estrogenic Attributes of the Cyclopia Nutraceutical Extract, SM6Met. PLoS One 2015. [PMID: 26208351 PMCID: PMC4514865 DOI: 10.1371/journal.pone.0132950] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The genus Cyclopia, an indigenous South African fynbos plant used to prepare honeybush tea, contains phytoestrogenic compounds. An extract from C. subternata, SM6Met, displays three desirable estrogenic attributes for future development of a phytoestrogenic nutraceutical, namely, ERα antagonism, ERβ agonism, and also antagonism of E2-induced breast cancer cell proliferation. Activity-guided fractionation of SM6Met was used in an attempt to isolate and identify compounds conferring the desirable estrogenic profile to SM6Met. Initial liquid-liquid fractionation of SM6Met yielded a polar fraction (PF) and a non-polar fraction (NPF), with the desirable estrogenic attributes retained in the NPF. Subsequent high performance counter-current chromatography (HPCCC) fractionation of the NPF yielded three fractions (F1-F3). Interestingly, the fractions revealed separation of the previously demonstrated positive estrogenic attributes of the NPF into separate fractions, with F1 and F2 acting as ERα antagonists, only F2 inducing antagonism of E2-induced breast cancer cell proliferation and only F3 retaining robust ERβ agonist activity. In terms of major polyphenols, quantitative HPLC and liquid chromatography tandem mass spectrometry (LC-MS/MS) indicated that HPCCC fractionation resulted in a divergence of polyphenolic classes, with F1 emerging as the dihydrochalcone-rich fraction and F2 as the flavanone- and benzophenone-rich fraction, while the xanthones, flavones and phenolic acids were retained in F3. F3 was re-engineered into F3R by reassembling the major polyphenols identified in the fraction. F3R could, however, not replicate the effect of F3. In conclusion, although activity-guided fractionation results suggest that retention of all the desirable estrogenic attributes of the original SM6Met in one fraction is not an attainable goal, fractionation is a useful tool to enhance specific desirable estrogenic attributes.
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Affiliation(s)
- M. Mortimer
- Department of Biochemistry, Stellenbosch University, Stellenbosch, Western Cape, South Africa
| | - K. Visser
- Department of Biochemistry, Stellenbosch University, Stellenbosch, Western Cape, South Africa
| | - D. de Beer
- Post-Harvest and Wine Technology Division, Agricultural Research Council of South Africa Infruitec-Nietvoorbij, Stellenbosch, Western Cape, South Africa
| | - E. Joubert
- Post-Harvest and Wine Technology Division, Agricultural Research Council of South Africa Infruitec-Nietvoorbij, Stellenbosch, Western Cape, South Africa
- Department of Food Science, Stellenbosch University, Stellenbosch, Western Cape, South Africa
| | - A. Louw
- Department of Biochemistry, Stellenbosch University, Stellenbosch, Western Cape, South Africa
- * E-mail:
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95
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Abstract
Skin aging is caused by several factors. Ultraviolet (UV) exposure as well as oxidative stress elevates inflammatory mediators causing degradation of the extracellular matrix, which is regarded as the major cause of skin wrinkles, one of the signs of aging. Topical applications of active ingredients protect against dermal photodamage and scavenge radicals that can delay skin aging. Matrix metalloproteinase inhibitors against degradation of collagen, elastin, and hyaluronan are the key strategy to combat cutaneous aging. In addition, active ingredients with the efficacy to enhance extracellular matrix production, including those with UV protection efficacy, play an important role in protecting the skin from aging. Naturally derived compounds for combating skin wrinkles are gaining more interest among the consumers as they are perceived to be milder, safer, and healthier. This article, therefore, briefly addresses the causes of skin aging and extensively summarizes on herbs appraisal for skin wrinkles treatment. Therefore, delaying aging of skin using the functional herbs would maintain the individual's appearance with high esthetic and psychosocial impacts.
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Affiliation(s)
| | - Nattaya Lourith
- a School of Cosmetic Science, Mae Fah Luang University , Chiang Rai , Thailand
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96
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Tewoldemedhin YT, Lamprecht SC, Mazzola M. Rhizoctonia Anastomosis Groups Associated with Diseased Rooibos Seedlings and the Potential of Compost as Soil Amendment for Disease Suppression. PLANT DISEASE 2015; 99:1020-1025. [PMID: 30690970 DOI: 10.1094/pdis-11-14-1211-re] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Rhizoctonia spp. associated with rooibos in the Western Cape province of South Africa were recovered during the 2008 season by planting seedlings in rhizosphere soils collected from 14 rooibos nurseries. In all, 75 Rhizoctonia isolates were obtained, of which 67 were multinucleate and 8 were binucleate Rhizoctonia spp. The identity of these isolates to anastomosis group (AG) was determined through sequence analysis of the ribosomal DNA internal transcribed spacer region. The collection of multinucleate isolates included representatives of AG-2-2 (67%), AG-4 HGI (14%), AG-11 (5%), and R. zeae (3%). Binucleate AGs included AG-Bo (4%) and AG-K (4%) and an unidentified binucleate Rhizoctonia (3%). Rhizoctonia solani AG-2-2 was the most widely distributed species of Rhizoctonia detected among the 11 nurseries sampled. All AGs recovered from rooibos have been previously reported on crop plants in South Africa, with the exception of R. zeae. However, this is the first study to classify the Rhizoctonia AGs recovered from rooibos. In glasshouse bioassays, the most virulent Rhizoctonia AGs on rooibos and lupin were AG-2-2, AG-4 HGI, and AG-11. Although plant damage was less than that observed for lupin and rooibos, oat was significantly affected by AG-2-2 and AG-4 HGI. Two composts sourced from independent suppliers were evaluated for disease suppression under glasshouse conditions. Compost amendment suppressed damping-off by most R. solani AGs, except for AG-4 HGI. Furthermore, within AG-2-2, suppression by compost was isolate specific.
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Affiliation(s)
- Y T Tewoldemedhin
- ARC-Plant Protection Research Institute, Private Bag X5017, Stellenbosch, 7599, Western Cape, South Africa
| | - S C Lamprecht
- ARC-Plant Protection Research Institute, Private Bag X5017, Stellenbosch, 7599, Western Cape, South Africa
| | - M Mazzola
- United States Department of Agriculture-Agricultural Research Service, Tree Fruit Research Laboratory, Wenatchee, WA 98801
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97
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Sujarwo W, Keim AP, Savo V, Guarrera PM, Caneva G. Ethnobotanical study of Loloh: Traditional herbal drinks from Bali (Indonesia). JOURNAL OF ETHNOPHARMACOLOGY 2015; 169:34-48. [PMID: 25861955 DOI: 10.1016/j.jep.2015.03.079] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Revised: 03/11/2015] [Accepted: 03/12/2015] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Loloh are herbal drinks produced and consumed exclusively in Bali (Indonesia) to prevent and treat different ailments. This is the first study to document plants species used as Loloh, reporting the phytochemical components and pharmacological properties of the most cited plants. Documenting the plants used in herbal drinks in Bali by local communities to treat various ailments (providing some information on phytochemistry and pharmacology of the most interesting plants). MATERIALS AND METHODS Ethnobotanical data were obtained through semi-structured interviews (individual and group discussions) and questionnaires. Plant specimens were collected, identified and made into herbarium vouchers. RESULTS A total of 51 plants species (belonging to 32 families) have been documented for their use in the various preparation of Loloh. Different plants and plant parts are used to prepare Loloh to treat heartburn, fever, diarrhea, hypertension, aphthous stomatitis (canker sores), and other minor health problems. These plants are mainly prepared as decoctions, are juiced or simply added to the preparation. The most cited plants (>30 informants) are Alstonia scholaris (L.) R. Br., Blumea balsamifera (L.) DC., Cinnamomum burmanni Nees ex Bl., and Piper betle L. These plants are well studied with multiple demonstrated pharmacological activities (e.g., antimicrobial, anticancer, antidiabetic). CONCLUSION The Balinese communities still preserve a rich ethnobotanical knowledge. Several species are well known for their pharmacological properties, but some [such as Pneumatopteris callosa (Blume) Nakai and Dendrocnide stimulans (L. f.) Chew] are understudied and could be promising candidates for further research.
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Affiliation(s)
- Wawan Sujarwo
- Bali Botanical Gardens, Indonesian Institute of Sciences (LIPI), Candikuning Baturiti, Tabanan 82191, Bali, Indonesia; Department of Science, University Roma Tre, Viale G. Marconi 446, 00146 Rome, Italy.
| | - Ary Prihardhyanto Keim
- Research Center for Biology, Indonesian Institute of Sciences (LIPI), Cibinong Science Center, Cibinong 16911, West Java, Indonesia.
| | - Valentina Savo
- Hakai Institute, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada.
| | - Paolo Maria Guarrera
- Istituto Centrale per la Demoetnoantropologia, MiBACT, Piazza Marconi 8-10, I-00144 Rome, Italy.
| | - Giulia Caneva
- Department of Science, University Roma Tre, Viale G. Marconi 446, 00146 Rome, Italy.
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98
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Lee W, Bae JS. Anti-inflammatory Effects of Aspalathin and Nothofagin from Rooibos (Aspalathus linearis) In Vitro and In Vivo. Inflammation 2015; 38:1502-16. [DOI: 10.1007/s10753-015-0125-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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99
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Kwak S, Han MS, Bae JS. Aspalathin and nothofagin from rooibos (Aspalathus linearis) inhibit endothelial protein C receptor shedding in vitro and in vivo. Fitoterapia 2015; 100:179-86. [DOI: 10.1016/j.fitote.2014.12.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 12/04/2014] [Accepted: 12/07/2014] [Indexed: 11/24/2022]
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100
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Katengua-Thamahane E, Marnewick JL, Ajuwon OR, Chegou NN, Szűcs G, Ferdinandy P, Csont T, Csonka C, Van Rooyen J. The combination of red palm oil and rooibos show anti-inflammatory effects in rats. J Inflamm (Lond) 2014; 11:41. [PMID: 25598708 PMCID: PMC4297406 DOI: 10.1186/s12950-014-0041-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Accepted: 11/26/2014] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Red palm oil (RPO) and rooibos have been shown to exhibit cardioprotective properties. RPO is rich in essential fatty acids and fat soluble antioxidants while rooibos contains polyphenolic compounds with a unique composition of flavonoids. They exert their biological effects in different cellular compartments. Therefore the combination of these two natural food compounds has the potential to enhance the spectrum of available dietary antioxidants in different cellular compartments, which could result in an enhanced protection against certain pathological conditions such as inflammation. METHODS Male Wistar rats weighing 150-200 g were supplemented with RPO, rooibos or their combination for 28 days. The Langendorff system and the lipoposaccharide (LPS)-induced inflammatory model were used to establish if RPO and rooibos, when supplemented alone or in combination, will reverse the negative effects of LPS on cardiac function at baseline. The effect of dietary intervention was also investigated on modulation of pro-inflammatory and anti-inflammatory cytokines in plasma and myocardial tissue. RESULTS AND DISCUSSION The LPS resulted in induction of systemic inflammation as evidenced by increased levels of IL-1β in plasma of LPS-treated rats compared to their non-treated control counterparts. Dietary supplementation and LPS treatment did not have an effect on baseline cardiac functional parameters. However, the elevation of IL-1β levels in plasma of LPS-induced rats consuming either RPO or rooibos alone were paralleled with increased levels of the anti-inflammatory cytokine, IL-10. The combination of rooibos and RPO was associated with enhanced endogenous production of myocardial IL-10 in LPS-induced rats. CONCLUSION The results of this study indicate that RPO and rooibos when supplemented individually showed anti-inflammatory effect at systemic level while their combination exhibited an enhanced anti-inflammatory effect in the myocardial tissue. Therefore, the findings in the current study argue that the combination of these two natural food substances could be beneficial in clinically relevant conditions where inflammation plays a role.
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Affiliation(s)
- Emma Katengua-Thamahane
- />Experimental Antioxidant Research Division, Department of Biomedical Sciences, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, Symphony Road, Bellville, Western Cape 7535 South Africa
| | - Jeanine L Marnewick
- />Oxidative Stress Research Centre, Institute of Biomedical and Microbial Biotechnology, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, Symphony Road, Bellville, Western Cape 7535 South Africa
| | - Olawale R Ajuwon
- />DST/NRF Centre of Excellence for Biomedical Tuberculosis Research and MRC Centre for Molecular and Cellular Biology, Division of Molecular Biology and Human Genetics, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Stellenbosch, Tygerberg, 7505 South Africa
| | - Novel N Chegou
- />DST/NRF Centre of Excellence for Biomedical Tuberculosis Research and MRC Centre for Molecular and Cellular Biology, Division of Molecular Biology and Human Genetics, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Stellenbosch, Tygerberg, 7505 South Africa
| | - Gergő Szűcs
- />Department of Biochemistry, University of Szeged, Szeged, Dom ter 9, Szeged, H-6720 Hungary
| | - Péter Ferdinandy
- />Department of Biochemistry, University of Szeged, Szeged, Dom ter 9, Szeged, H-6720 Hungary
- />Pharmahungary Group, Hajnoczy u 6, Szeged, 6722 Hungary
| | - Tamás Csont
- />Department of Biochemistry, University of Szeged, Szeged, Dom ter 9, Szeged, H-6720 Hungary
| | - Csaba Csonka
- />Department of Biochemistry, University of Szeged, Szeged, Dom ter 9, Szeged, H-6720 Hungary
| | - Jacques Van Rooyen
- />Experimental Antioxidant Research Division, Department of Biomedical Sciences, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, Symphony Road, Bellville, Western Cape 7535 South Africa
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