851
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Gonçalves D, Ferreira P, Baldwin E, Cesar T. Health Benefits of Orange Juice and Citrus Flavonoids. PHYTOCHEMICALS IN CITRUS 2017. [DOI: 10.1201/9781315369068-10] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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852
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Nguyen VT, Bowyer MC, Van Altena IA, Scarlett CJ. Microwave-assisted extraction as an advanced technique for optimization of saponin yield and antioxidant potential from Phyllanthus amarus. SEP SCI TECHNOL 2017. [DOI: 10.1080/01496395.2017.1374972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Van Tang Nguyen
- School of Environmental and Life Sciences, Faculty of Science, University of Newcastle, Ourimbah, NSW, Australia
- Department of Food Technology, Faculty of Food Technology, Nha Trang University, Nha Trang, Khanh Hoa, Vietnam
| | - Michael C. Bowyer
- School of Environmental and Life Sciences, Faculty of Science, University of Newcastle, Ourimbah, NSW, Australia
| | - Ian A. Van Altena
- School of Environmental and Life Sciences, Faculty of Science, University of Newcastle, Ourimbah, NSW, Australia
| | - Christopher J. Scarlett
- School of Environmental and Life Sciences, Faculty of Science, University of Newcastle, Ourimbah, NSW, Australia
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853
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Zhao L, Huang Y, Adeleye AS, Keller AA. Metabolomics Reveals Cu(OH) 2 Nanopesticide-Activated Anti-oxidative Pathways and Decreased Beneficial Antioxidants in Spinach Leaves. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:10184-10194. [PMID: 28738142 DOI: 10.1021/acs.est.7b02163] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
While the use of nanopesticides in modern agriculture continues to increase, their effects on crop plants are still poorly understood. Here, 4 week old spinach plants grown in an artificial medium were exposed via foliar spray to Cu(OH)2 nanopesticide (0.18 and 18 mg/plant) or Cu ions (0.15 and 15 mg/plant) for 7 days. A gas chromatography-time-of-flight-mass spectrometry metabolomics approach was applied to assess metabolic alterations induced by Cu(OH)2 nanopesticide in spinach leaves. Exposure to Cu(OH)2 nanopesticide and copper ions induced alterations in the metabolite profiles of spinach leaves. Compared to the control, exposure to 18 mg of Cu(OH)2 nanopesticide induced significant reduction (29-85%) in antioxidant or defense-associated metabolites including ascorbic acid, α-tocopherol, threonic acid, β-sitosterol, 4-hydroxybutyric acid, ferulic acid, and total phenolics. The metabolic pathway for ascorbate and aldarate was disturbed in all exposed spinach plants (nanopesticide and Cu2+). Cu2+ is responsible for the reduction in antioxidants and perturbation of the ascorbate and aldarate metabolism. However, nitrogen metabolism perturbation was nanopesticide-specific. Spinach biomass and photosynthetic pigments were not altered, indicating that metabolomics can be a rapid and sensitive tool for the detection og earlier nanopesticide effects. Consumption of antioxidants during the antioxidant defense process resulted in reduction of the nutritional value of exposed spinach.
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Affiliation(s)
- Lijuan Zhao
- Bren School of Environmental Science & Management and ‡Center for Environmental Implications of Nanotechnology, University of California , Santa Barbara, California 93106, United States
| | - Yuxiong Huang
- Bren School of Environmental Science & Management and ‡Center for Environmental Implications of Nanotechnology, University of California , Santa Barbara, California 93106, United States
| | - Adeyemi S Adeleye
- Bren School of Environmental Science & Management and ‡Center for Environmental Implications of Nanotechnology, University of California , Santa Barbara, California 93106, United States
| | - Arturo A Keller
- Bren School of Environmental Science & Management and ‡Center for Environmental Implications of Nanotechnology, University of California , Santa Barbara, California 93106, United States
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854
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Deep Eutectic Solvents as Convenient Media for Synthesis of Novel Coumarinyl Schiff Bases and Their QSAR Studies. Molecules 2017; 22:molecules22091482. [PMID: 28872604 PMCID: PMC6151826 DOI: 10.3390/molecules22091482] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 08/29/2017] [Accepted: 09/02/2017] [Indexed: 11/17/2022] Open
Abstract
Deep eutectic solvents, as green and environmentally friendly media, were utilized in the synthesis of novel coumarinyl Schiff bases. Novel derivatives were synthesized from 2-((4-methyl-2-oxo-2H-chromen-7-yl)oxy)acetohydrazide and corresponding aldehyde in choline chloride:malonic acid (1:1) based deep eutectic solvent. In these reactions, deep eutectic solvent acted as a solvent and catalyst as well. Novel Schiff bases were synthesized in high yields (65–75%) with no need for further purification, and their structures were confirmed by mass spectra, 1H and 13C NMR. Furthermore, their antioxidant activity was determined and compared to antioxidant activity of previously synthesized derivatives, thus investigating their structure–activity relationship utilizing quantitative structure-activity relationship QSAR studies. Calculation of molecular descriptors has been performed by DRAGON software. The best QSAR model (Rtr = 0.636; Rext = 0.709) obtained with three descriptors (MATS3m, Mor22u, Hy) implies that the pairs of atoms higher mass at the path length 3, three-dimensional arrangement of atoms at scattering parameter s = 21 Å−1, and higher number of hydrophilic groups (-OH, -NH) enhanced antioxidant activity. Electrostatic potential surface of the most active compounds showed possible regions for donation of electrons to 1,1-diphenyl-2-picryhydrazyl (DPPH) radicals.
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855
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856
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Basha SA, Rao UP. Bioactivities of fractions obtained from green gram ( Vigna radiata ) milled by-products. FOOD BIOSCI 2017. [DOI: 10.1016/j.fbio.2017.07.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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857
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Lycopene rich extract from red guava ( Psidium guajava L.) displays anti-inflammatory and antioxidant profile by reducing suggestive hallmarks of acute inflammatory response in mice. Food Res Int 2017; 99:959-968. [DOI: 10.1016/j.foodres.2017.01.017] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 01/04/2017] [Accepted: 01/20/2017] [Indexed: 12/18/2022]
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858
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Distribution of apparent activation energy counterparts during thermo – And thermo-oxidative degradation of Aronia melanocarpa (black chokeberry). Food Chem 2017; 230:30-39. [DOI: 10.1016/j.foodchem.2017.03.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 02/25/2017] [Accepted: 03/03/2017] [Indexed: 02/02/2023]
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859
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A cost-effective assay for antioxidant using simple cotton thread combining paper based device with mobile phone detection. Talanta 2017; 177:171-175. [PMID: 29108572 DOI: 10.1016/j.talanta.2017.08.073] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 08/20/2017] [Accepted: 08/23/2017] [Indexed: 11/22/2022]
Abstract
A cost-effective assay for antioxidant using simple cotton thread combining paper based device with mobile phone detection has been investigated. Standard and sample solutions flow along a bunch of cotton thread treated with sodium hydroxide via microfluidic behaviors without external pumping. The analyte solution reacts with the reagents that have been immobilized on the paper strip fixed at the end of the cotton bunch. The developed platforms were used for the assays of total phenolic content and antioxidant capacity by employing Folin-Ciocalteu and 2, 2-diphenyl-1-picryhydrazyl (DPPH) respectively. Simple detection can be made by employing a mobile phone camera (iPhone 4S) with Image J or Photoshop for image processing and evaluation. Gallic acid was used as a reference standard in this work, as its polyphenol structures can be found in many plants. The total phenolic content is expressed as gallic acid equivalents (GAE) (mg/g material). Inhibition capacity is calculated by the equation: % I = [(Io - Is)/ Io] × 100, where Is is the relative magenta intensity (CMYK mode) of sample, and Io the relative magenta intensity of DPPH•. IC50 inhibition can be estimated from the graph and can be used for the antioxidant capacity consideration. Applications to the assay green tea samples were demonstrated. The total phenolic contents in the green tea samples were found to be 48-105mg/g, with %RSD of less than 10 for that of higher 50 GAE mg/g and IC50 values of the samples studied were 25-50mg/L. The results obtained by the developed methods agree with that of the standard methods.
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860
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Klarod K, Philippe M, Gatterer H, Burtscher M. Different training responses to eccentric endurance exercise at low and moderate altitudes in pre-diabetic men: a pilot study. SPORT SCIENCES FOR HEALTH 2017; 13:615-623. [PMID: 29276542 PMCID: PMC5729199 DOI: 10.1007/s11332-017-0392-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 08/11/2017] [Indexed: 12/19/2022]
Abstract
This pilot study aimed (a) to evaluate the effects of eccentric exercise training at low and moderate altitudes on physical fitness in pre-diabetic men and (b) to establish whether or not oxidative stress levels and antioxidant status were associated with performance improvements. In this crossover trial, five pre-diabetic men conducted nine downhill walking sessions (3 days/week, 3 consecutive weeks) at low altitude (from 1360 to 850 m) and one year later at moderate altitude (from 2447 to 2000 m). Exercise testing and the determination of parameters of oxidative stress and antioxidant capacity were performed pre- and post-training. The biological antioxidant activity of plasma (BAP) increased after eccentric training at moderate altitude (p < 0.001), whereas diacron reactive oxygen metabolites (dROMs) remained unchanged. Also, the BAP/dROMs ratio increased only after training at moderate-altitude training (p = 0.009). Maximum power output improved after training at low altitude and the changes were significantly related to baseline BAP/dROMs ratio (r = 0.90). No decrease was seen for fasting plasma glucose. Eccentric exercise training in pre-diabetic men improved performance only when performed at low altitude and this improvement was positively related to the baseline BAP/dROMs ratio. In contrast, 3 weeks of eccentric exercise training increased BAP levels and the BAP/dROMs ratio only at moderate altitude without improving the performance. Thus, one might speculate that the BAP/dROMs ratio has to increase before performance improvements occur at moderate altitude.
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Affiliation(s)
- Kultida Klarod
- Department of Sport Science, Medical Section, University of Innsbruck, 6020 Innsbruck, Austria.,Department of Physical Therapy, Faculty of Allied Health Sciences, Burapha University, Chonburi, 20131 Thailand
| | - Marc Philippe
- Department of Sport Science, Medical Section, University of Innsbruck, 6020 Innsbruck, Austria.,Department of Sports Medicine, Institute of Sports Sciences, Justus-Liebig-University, 35394 Giessen, Germany
| | - Hannes Gatterer
- Department of Sport Science, Medical Section, University of Innsbruck, 6020 Innsbruck, Austria
| | - Martin Burtscher
- Department of Sport Science, Medical Section, University of Innsbruck, 6020 Innsbruck, Austria
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861
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Chellian R, Pandy V, Mohamed Z. Pharmacology and toxicology of α- and β-Asarone: A review of preclinical evidence. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2017; 32:41-58. [PMID: 28732807 DOI: 10.1016/j.phymed.2017.04.003] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 03/20/2017] [Accepted: 04/08/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Asarone is one of the most researched phytochemicals and is mainly present in the Acorus species and Guatteria gaumeri Greenman. In preclinical studies, both α- and β-asarone have been reported to have numerous pharmacological activities and at the same time, many studies have also revealed the toxicity of α- and β-asarone. PURPOSE The purpose of this comprehensive review is to compile and analyze the information related to the pharmacokinetic, pharmacological, and toxicological studies reported on α- and β-asarone using preclinical in vitro and in vivo models. Besides, the molecular targets and mechanism(s) involved in the biological activities of α- and β-asarone were discussed. METHODS Databases including PubMed, ScienceDirect and Google scholar were searched and the literature from the year 1960 to January 2017 was retrieved using keywords such as α-asarone, β-asarone, pharmacokinetics, toxicology, pharmacological activities (e.g. depression, anxiety). RESULTS Based on the data obtained from the literature search, the pharmacokinetic studies of α- and β-asarone revealed that their oral bioavailability in rodents is poor with a short plasma half-life. Moreover, the metabolism of α- and β-asarone occurs mainly through cytochrome-P450 pathways. Besides, both α- and/or β-asarone possess a wide range of pharmacological activities such as antidepressant, antianxiety, anti-Alzheimer's, anti-Parkinson's, antiepileptic, anticancer, antihyperlipidemic, antithrombotic, anticholestatic and radioprotective activities through its interaction with multiple molecular targets. Importantly, the toxicological studies revealed that both α- and β-asarone can cause hepatomas and might possess mutagenicity, genotoxicity, and teratogenicity. CONCLUSIONS Taken together, further preclinical studies are required to confirm the pharmacological properties of α-asarone against depression, anxiety, Parkinson's disease, psychosis, drug dependence, pain, inflammation, cholestasis and thrombosis. Besides, the anticancer effect of β-asarone should be further studied in different types of cancers using in vivo models. Moreover, further dose-dependent in vivo studies are required to confirm the toxicity of α- and β-asarone. Overall, this extensive review provides a detailed information on the preclinical pharmacological and toxicological activities of α-and β-asarone and this could be very useful for researchers who wish to conduct further preclinical studies using α- and β-asarone.
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Affiliation(s)
- Ranjithkumar Chellian
- Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Vijayapandi Pandy
- Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia.
| | - Zahurin Mohamed
- Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
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862
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Azouzi S, Santuz H, Morandat S, Pereira C, Côté F, Hermine O, El Kirat K, Colin Y, Le Van Kim C, Etchebest C, Amireault P. Antioxidant and Membrane Binding Properties of Serotonin Protect Lipids from Oxidation. Biophys J 2017; 112:1863-1873. [PMID: 28494957 DOI: 10.1016/j.bpj.2017.03.037] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 03/29/2017] [Accepted: 03/30/2017] [Indexed: 02/07/2023] Open
Abstract
Serotonin (5-hydroxytryptamine, 5-HT) is a well-known neurotransmitter that is involved in a growing number of functions in peripheral tissues. Recent studies have shown nonpharmacological functions of 5-HT linked to its chemical properties. Indeed, it was reported that 5-HT may, on the one hand, bind lipid membranes and, on the other hand, protect red blood cells through a mechanism independent of its specific receptors. To better understand these underevaluated properties of 5-HT, we combined biochemical, biophysical, and molecular dynamics simulations approaches to characterize, at the molecular level, the antioxidant capacity of 5-HT and its interaction with lipid membranes. To do so, 5-HT was added to red blood cells and lipid membranes bearing different degrees of unsaturation. Our results demonstrate that 5-HT acts as a potent antioxidant and binds with a superior affinity to lipids with unsaturation on both alkyl chains. We show that 5-HT locates at the hydrophobic-hydrophilic interface, below the glycerol group. This interfacial location is stabilized by hydrogen bonds between the 5-HT hydroxyl group and lipid headgroups and allows 5-HT to intercept reactive oxygen species, preventing membrane oxidation. Experimental and molecular dynamics simulations using membrane enriched with oxidized lipids converge to further reveal that 5-HT contributes to the termination of lipid peroxidation by direct interaction with active groups of these lipids and could also contribute to limit the production of new radicals. Taken together, our results identify 5-HT as a potent inhibitor of lipid peroxidation and offer a different perspective on the role of this pleiotropic molecule.
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Affiliation(s)
- Slim Azouzi
- Université Sorbonne Paris Cité, Université Paris Diderot, INSERM, Unité Biologie Intégrée du Globule Rouge UMR-S1134, Institut National de la Transfusion Sanguine, Laboratoire d'Excellence GR-Ex, Paris, France
| | - Hubert Santuz
- Université Sorbonne Paris Cité, Université Paris Diderot, INSERM, Unité Biologie Intégrée du Globule Rouge UMR-S1134, Institut National de la Transfusion Sanguine, Laboratoire d'Excellence GR-Ex, Paris, France
| | - Sandrine Morandat
- Sorbonne Universités, Université de Technologie de Compiègne, CNRS, Laboratoire de Génie Enzymatique et Cellulaire FRE 3580, Centre de Recherche Royallieu, Compiègne, France
| | - Catia Pereira
- Université Sorbonne Paris Cité, Université Paris Diderot, INSERM, Unité Biologie Intégrée du Globule Rouge UMR-S1134, Institut National de la Transfusion Sanguine, Laboratoire d'Excellence GR-Ex, Paris, France
| | - Francine Côté
- Université Sorbonne Paris Cité, Université Paris Descartes, INSERM, CNRS, Laboratory of Cellular and Molecular Mechanisms of Hematological Disorders and Therapeutic Implications U1163, Institut Imagine, Laboratoire d'Excellence GR-Ex, Paris, France
| | - Olivier Hermine
- Université Sorbonne Paris Cité, Université Paris Descartes, INSERM, CNRS, Laboratory of Cellular and Molecular Mechanisms of Hematological Disorders and Therapeutic Implications U1163, Institut Imagine, Laboratoire d'Excellence GR-Ex, Paris, France
| | - Karim El Kirat
- Sorbonne Universités, Université de Technologie de Compiègne, CNRS, Laboratoire de BioMécanique et BioIngénierie UMR 7338, Centre de Recherche Royallieu, Compiègne cedex, France
| | - Yves Colin
- Université Sorbonne Paris Cité, Université Paris Diderot, INSERM, Unité Biologie Intégrée du Globule Rouge UMR-S1134, Institut National de la Transfusion Sanguine, Laboratoire d'Excellence GR-Ex, Paris, France
| | - Caroline Le Van Kim
- Université Sorbonne Paris Cité, Université Paris Diderot, INSERM, Unité Biologie Intégrée du Globule Rouge UMR-S1134, Institut National de la Transfusion Sanguine, Laboratoire d'Excellence GR-Ex, Paris, France
| | - Catherine Etchebest
- Université Sorbonne Paris Cité, Université Paris Diderot, INSERM, Unité Biologie Intégrée du Globule Rouge UMR-S1134, Institut National de la Transfusion Sanguine, Laboratoire d'Excellence GR-Ex, Paris, France.
| | - Pascal Amireault
- Université Sorbonne Paris Cité, Université Paris Diderot, INSERM, Unité Biologie Intégrée du Globule Rouge UMR-S1134, Institut National de la Transfusion Sanguine, Laboratoire d'Excellence GR-Ex, Paris, France; Université Sorbonne Paris Cité, Université Paris Descartes, INSERM, CNRS, Laboratory of Cellular and Molecular Mechanisms of Hematological Disorders and Therapeutic Implications U1163, Institut Imagine, Laboratoire d'Excellence GR-Ex, Paris, France.
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863
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Ali A, Asif M, Alam P, Jane Alam M, Asif Sherwani M, Hasan Khan R, Ahmad S, Shamsuzzaman. DFT/B3LYP calculations, in vitro cytotoxicity and antioxidant activities of steroidal pyrimidines and their interaction with HSA using molecular docking and multispectroscopic techniques. Bioorg Chem 2017. [DOI: 10.1016/j.bioorg.2017.06.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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864
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Jana S, Patel D, Patel S, Upadhyay K, Thadani J, Mandal R, Das S, Devkar R. Anthocyanin rich extract of Brassica oleracea L. alleviates experimentally induced myocardial infarction. PLoS One 2017; 12:e0182137. [PMID: 28763488 PMCID: PMC5538674 DOI: 10.1371/journal.pone.0182137] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Accepted: 07/12/2017] [Indexed: 11/18/2022] Open
Abstract
Cardioprotective potential of anthocyanin rich red cabbage extract (ARCE) was assessed in H2O2 treated rat neonatal cardiomyoblasts (H9c2 cells) and isoproterenol (ISO) induced rodent model of myocardial infarction. H2O2 treated H9c2 cells recorded cytotoxicity (48–50%) and apoptosis (57.3%), the same were reduced in presence of ARCE (7–10% & 12.3% respectively). Rats pretreated with ARCE for 30 days followed by ISO treatment recorded favourable heart: body weight ratio as compared to ISO treated group. Also, the mRNA levels of enzymatic antioxidants (sod and catalase) and apoptotic genes (bax and bcl-2) in ARCE+ISO treated group were similar to the control group suggesting that ARCE pretreatment prevents ISO induced depletion of enzymatic antioxidants and apoptosis. Histoarchitecture of ventricular tissue of ISO treated group was marked by infracted areas (10%) and derangement of myocardium whereas, ARCE+ISO treated group (4.5%) recorded results comparable to control (0%). ARCE+ISO treated group accounted for upregulation of caveolin-3 and SERCA2a expression as compared to the ISO treated group implying towards ARCE mediated reduction in membrane damage and calcium imbalance. Molecular docking scores and LigPlot analysis of cyanidin-3-glucoside (-8.7 Kcal/mol) and delphinidin-3-glucoside (-8.5 Kcal/mol) showed stable hydrophobic and electrostatic interactions with β1 adrenergic receptor. Overall this study elucidates the mechanism of ARCE mediated prevention of experimentally induced myocardial damage.
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Affiliation(s)
- Sarmita Jana
- Phytotherapeutics and Metabolic Endocrinology Division, Department of Zoology, Faculty of Science, The M.S. University of Baroda, Vadodara, India
| | - Dipak Patel
- Phytotherapeutics and Metabolic Endocrinology Division, Department of Zoology, Faculty of Science, The M.S. University of Baroda, Vadodara, India
- Ecotoxicology lab, Jai Research Foundation, Vapi, India
| | - Shweta Patel
- Phytotherapeutics and Metabolic Endocrinology Division, Department of Zoology, Faculty of Science, The M.S. University of Baroda, Vadodara, India
| | - Kapil Upadhyay
- Phytotherapeutics and Metabolic Endocrinology Division, Department of Zoology, Faculty of Science, The M.S. University of Baroda, Vadodara, India
| | - Jaymesh Thadani
- Phytotherapeutics and Metabolic Endocrinology Division, Department of Zoology, Faculty of Science, The M.S. University of Baroda, Vadodara, India
| | - Rahul Mandal
- Biomedical Informatics centre, National Institute of Cholera and Enteric Diseases, Kolkata, India
| | - Santasabuj Das
- Biomedical Informatics centre, National Institute of Cholera and Enteric Diseases, Kolkata, India
| | - Ranjitsinh Devkar
- Phytotherapeutics and Metabolic Endocrinology Division, Department of Zoology, Faculty of Science, The M.S. University of Baroda, Vadodara, India
- * E-mail:
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865
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Paul RK, Kumar D, Naqvi S. Antioxidants protect proteins' anchorage to the bilayer by improving plasma membrane integrity of ram spermatozoa during liquid preservation in a soya lecithin-based diluent. Reprod Domest Anim 2017; 52:1052-1060. [PMID: 28741693 DOI: 10.1111/rda.13023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 06/06/2017] [Indexed: 11/26/2022]
Abstract
Antioxidants are known to prevent the reactive oxygen species (ROS)-mediated peroxidative damage to the membrane lipids during hypothermic storage of mammalian spermatozoa. We hypothesized here that ROS also affect the lipid-protein interactions, thereby diminishing the membrane's integrity and proteins' anchorage to the bilayer. Antioxidants prevent these damages by scavenging the ROS. Ejaculates from Patanwadi rams were pooled after subjective evaluation and centrifuged using Percoll® . Sperm pellet was resuspended in soya lecithin-Tris-fructose diluent (400 × 106 cells/ml) containing either antioxidants (100 IU/ml catalase + 10 mM reduced glutathione) or no antioxidant. Aliquots were chilled to 5°C in a cabinet and stored in a refrigerator at 3-5°C for 72 hr. Sperm motility, viability, lipid peroxidation (LPO) and hypo-osmotic swelling test (HOST) were performed at 0, 24, 48 and 72 hr. Sperm proteins extracted with 0.5% Triton X-100 were resolved by SDS-PAGE and quantified using Quantity One software (Bio-Rad, USA). The rapid motility, linearity and straight-line velocity (VSL) were found significantly (p < .05) higher in the antioxidant-treated group compared to the control at 48 hr of storage. Sperm viability was found comparable between the groups. Higher HOST response and lower LPO were found in the antioxidant-treated sample compared to the control both at 48 and at 72 hr. Overall, the proteins P1 (106.09 kDa), P2 (87.00 kDa) and P4 (51.14 kDa) were lower (p < .05) in the sperm extract of antioxidant-treated group compared to the control. The content of P4 (51.14 kDa) in sperm extract was found to increase (p < .05) earlier (48 vs. 72 hr) in the control group compared to the antioxidant-treated group. Altogether, the results suggested that antioxidants reduced LPO in spermatozoa, resulting in higher sperm motility, plasma membrane integrity and protection of proteins' anchorage to the plasma membrane at 48 and 72 hr of storage.
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Affiliation(s)
- R K Paul
- ICAR-Central Sheep and Wool Research Institute, Rajasthan, India
| | - D Kumar
- ICAR-Central Sheep and Wool Research Institute, Rajasthan, India
| | - Smk Naqvi
- ICAR-Central Sheep and Wool Research Institute, Rajasthan, India
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866
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Dewanjee S, Joardar S, Bhattacharjee N, Dua TK, Das S, Kalita J, Manna P. Edible leaf extract of Ipomoea aquatica Forssk. (Convolvulaceae) attenuates doxorubicin-induced liver injury via inhibiting oxidative impairment, MAPK activation and intrinsic pathway of apoptosis. Food Chem Toxicol 2017; 105:322-336. [PMID: 28478100 DOI: 10.1016/j.fct.2017.05.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 04/22/2017] [Accepted: 05/02/2017] [Indexed: 12/17/2022]
Abstract
Ipomoea aquatica Forssk. (Convolvulaceae) is an aquatic vegetable traditionally employed against toxic effects of xenobiotics. The present study has been designed to investigate the molecular mechanism underlying the beneficial role of the edible (aqueous) leaf extract of I. aquatica (AEIA) against doxorubicin (Dox)-induced liver injury. AEIA exhibited a dose-dependent (∼400 μg/ml) increase in cell viability against Dox (1 μM) in isolated rodent hepatocytes. AEIA (400 μg/ml) prevented the Dox-induced increase in ROS, redox imbalance, and activation of mitogen activated protein kinases (MAPK) and intrinsic pathway of apoptosis in hepatocytes. In the in vivo assay, administration of AEIA (100 mg/kg, p.o.) against Dox (3 mg/kg, i.p.) also reduced the oxidative impairment, DNA fragmentation, ATP formation, and up-regulated the mitochondrial co-enzymes Qs in the liver tissues of Wistar rats. Histological assessments were in agreement with the biochemical findings. Substantial quantities of phyto-antioxidants in AEIA may mediate its beneficial function against Dox-induced liver injury.
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Affiliation(s)
- Saikat Dewanjee
- Advanced Pharmacognosy Research Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India.
| | - Swarnalata Joardar
- Advanced Pharmacognosy Research Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
| | - Niloy Bhattacharjee
- Advanced Pharmacognosy Research Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
| | - Tarun K Dua
- Advanced Pharmacognosy Research Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
| | - Subhadip Das
- Advanced Pharmacognosy Research Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
| | - Jatin Kalita
- Biological Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006, India
| | - Prasenjit Manna
- Biological Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006, India.
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867
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Francis S, Joseph S, Koshy EP, Mathew B. Green synthesis and characterization of gold and silver nanoparticles using Mussaenda glabrata leaf extract and their environmental applications to dye degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:17347-17357. [PMID: 28589274 DOI: 10.1007/s11356-017-9329-2] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 05/19/2017] [Indexed: 05/22/2023]
Abstract
Plant-derived nanomaterials opened a green approach in solving the current environment issues. Present study focused on rapid microwave-assisted synthesis and applications of gold and silver nanoparticles mediated by aqueous leaf extract of Mussaenda glabrata. The synthesized nanoparticles were characterized by UV-vis, FT-IR, powder XRD, energy-dispersive X-ray spectroscopy (EDX), transmission electron (TEM), and atomic force microscopic techniques (AFM). FCC crystal structure of both nanoparticles was confirmed by peaks corresponding to (111), (200), (220), and (311) planes in XRD spectra and bright circular spots in SAED pattern. IC50 values shown by gold and silver nanoparticles (44.1 ± 0.82 and 57.92 ± 1.33 μg/mL) reflected their high free radical scavenging potential. The synthesized gold and silver nanoparticles revealed their potency to inhibit pathogenic microorganisms Bacillus pumilus, Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, Aspergillus niger, and Penicillium chrysogenum. Anthropogenic pollutants rhodamine B and methyl orange were effectively degraded from aquatic environment and waste water sewages of dye industries using the prepared nanocatalysts. The catalytic capacities of the synthesized nanoparticles were also exploited in the reduction of 4-nitrophenol. Graphical abstract.
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Affiliation(s)
- Sijo Francis
- Department of Chemistry, St. Joseph's College, Moolamattom, Idukki, Kerala, 685591, India
| | - Siby Joseph
- Department of Chemistry, St. George's College, Aruvithura, Kottayam, Kerala, 686122, India
| | - Ebey P Koshy
- Department of Chemistry, St. Joseph's College, Moolamattom, Idukki, Kerala, 685591, India
| | - Beena Mathew
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala, 686560, India.
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868
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Yao Y, Xiang H, You L, Cui C, Sun-Waterhouse D, Zhao M. Hypolipidaemic and antioxidant capacities of polysaccharides obtained from Laminaria japonica
by different extraction media in diet-induced mouse model. Int J Food Sci Technol 2017. [DOI: 10.1111/ijfs.13508] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yujing Yao
- Food Department; Guangdong Food and Drug Vocational College; Guangzhou Guangdong 510520 China
| | - Huan Xiang
- College of Food Science and Engineering; South China University of Technology; Guangzhou Guangdong 510640 China
| | - Lijun You
- College of Food Science and Engineering; South China University of Technology; Guangzhou Guangdong 510640 China
| | - Chun Cui
- College of Food Science and Engineering; South China University of Technology; Guangzhou Guangdong 510640 China
| | - Dongxiao Sun-Waterhouse
- College of Food Science and Engineering; South China University of Technology; Guangzhou Guangdong 510640 China
| | - Mouming Zhao
- College of Food Science and Engineering; South China University of Technology; Guangzhou Guangdong 510640 China
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869
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Che Sulaiman IS, Basri M, Fard Masoumi HR, Chee WJ, Ashari SE, Ismail M. Effects of temperature, time, and solvent ratio on the extraction of phenolic compounds and the anti-radical activity of Clinacanthus nutans Lindau leaves by response surface methodology. Chem Cent J 2017; 11:54. [PMID: 29086900 PMCID: PMC5471285 DOI: 10.1186/s13065-017-0285-1] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Accepted: 06/07/2017] [Indexed: 12/01/2022] Open
Abstract
Background Clinacanthus nutans Lindau is a well-known plant, native to tropical Asian countries. Reports on this plant that is rich in phenolic compounds have focused on its therapeutic anti-inflammatory, anti-herpes simplex, antioxidant, and anti-cancer characteristics. In this paper, the influence of the extraction parameters—temperatures (60–80 °C), times (80–120 min), and solvent ratios (70:30–90:10) of water:ethanol were investigated using response surface methodology in order to determine the optimum extraction conditions that could produce maximum extraction yields of the phenolic compounds and the highest anti-radical activity of the C. nutans extract. Results The optimum conditions suggested by the predicted model were: an extraction temperature of 60 °C, an extraction time of 120 min and a water:ethanol solvent ratio of 90:10 v/v%. The residual standard error of 0.2% indicated that there was no significant difference between the actual and predicted values and it proved that the models were adequate to predict the relevant responses. All the independent variables had a significant effect (p < 0.05) on all the responses which indicated that all extraction parameters employed in this study were important in the optimization process. The R2 values for three responses, extraction yields, DPPH radical scavenging activity and TPC were 0.9999, 0.9999 and 0.9983 respectively, suggesting that the quadratic polynomial models developed were satisfactorily accurate to be used in analyzing the interactions of the parameters (response and independent variables). Conclusion This study could be useful in the development of cosmeceutical products containing extracts of C. nutans.
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Affiliation(s)
- Intan Soraya Che Sulaiman
- Nanodelivery Group, Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
| | - Mahiran Basri
- Nanodelivery Group, Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
| | - Hamid Reza Fard Masoumi
- Nanodelivery Group, Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.,Department of Biomaterials, Iran Polymer and Petrochemical Institute, Tehran, Iran
| | - Wei Jian Chee
- Nanodelivery Group, Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Siti Efliza Ashari
- Nanodelivery Group, Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Maznah Ismail
- Laboratory of Molecular Biomedicine, Institute of Bioscience, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
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870
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Almaguer-Gotay D, Almaguer-Mederos LE, Aguilera-Rodríguez R, Rodríguez-Labrada R, Cuello-Almarales D, Estupiñán-Domínguez A, Velázquez-Pérez LC, González-Zaldívar Y, Vázquez-Mojena Y. Spinocerebellar Ataxia Type 2 Is Associated with the Extracellular Loss of Superoxide Dismutase but Not Catalase Activity. Front Neurol 2017; 8:276. [PMID: 28659860 PMCID: PMC5468381 DOI: 10.3389/fneur.2017.00276] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 05/29/2017] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Spinocerebellar ataxia type 2 (SCA2) is an inherited and still incurable neurodegenerative disorder. Evidence suggests that pro-oxidant agents as well as factors involved in antioxidant cellular defenses are part of SCA2 physiopathology. AIM To assess the influence of superoxide dismutase (SOD3) and catalase (CAT) enzymatic activities on the SCA2 syndrome. METHOD Clinical, molecular, and electrophysiological variables, as well as SOD3 and CAT enzymatic activities were evaluated in 97 SCA2 patients and in 64 age- and sex-matched control individuals. RESULTS Spinocerebellar ataxia type 2 patients had significantly lower SOD3 enzymatic activity than the control group. However, there were no differences between patients and controls for CAT enzymatic activity. The effect size for the loss of patients' SOD3 enzymatic activity was 0.342, corresponding to a moderate effect. SOD3 and CAT enzymatic activities were not associated with the CAG repeat number at the ATXN2 gene. SOD3 and CAT enzymatic activities did not show significant associations with the age at onset, severity score, or the studied electrophysiological markers. CONCLUSION There is a reduced SOD3 enzymatic activity in SCA2 patients with no repercussion on the clinical phenotype.
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Affiliation(s)
- Dennis Almaguer-Gotay
- Center for the Research and Rehabilitation of Hereditary Ataxias (CIRAH), Holguín, Cuba
| | | | | | | | - Dany Cuello-Almarales
- Center for the Research and Rehabilitation of Hereditary Ataxias (CIRAH), Holguín, Cuba
| | | | | | | | - Yaimé Vázquez-Mojena
- Center for the Research and Rehabilitation of Hereditary Ataxias (CIRAH), Holguín, Cuba
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871
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Wang Y, Lin Y, Xiang L, Osada H, Qi J. Sesquiterpene glucosides from Shenzhou honey peach fruit showed the anti-aging activity in the evaluation system using yeasts. Biosci Biotechnol Biochem 2017; 81:1586-1590. [PMID: 28585468 DOI: 10.1080/09168451.2017.1332978] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
One new (1, SZMT01) and one known (2) anti-aging substances were isolated from Shenzhou honey peach fruit. Their structures were elucidated by spectroscopic methods and chemical derivatization, and the result reveals that these two compounds are sesquiterpene glucosides. SZMT01 possesses a new glycosylation with an ester linkage at one terminal in an acyclic sesquiterpenoid which is the end of a double bond at another terminal. Both compounds extend the replicative lifespan of K6001 yeast strain at doses of 7.5 and 25 μM. Then, to understand the action mechanism involved, we performed an anti-oxidative experiment on SZMT01. The result revealed that treatment with SZMT01 increased the survival rate of yeast under oxidative stress. Moreover, the lifespans of sod1 and sod2 mutant yeast strains with a K6001 background were not affected by SZMT01. These results demonstrate that anti-oxidative stress performs important roles in anti-aging effects of SZMT01.
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Affiliation(s)
- Yanhui Wang
- a College of Pharmaceutical Sciences, Zhejiang University , Hangzhou , People's Republic of China
| | - Yanfei Lin
- a College of Pharmaceutical Sciences, Zhejiang University , Hangzhou , People's Republic of China
| | - Lan Xiang
- a College of Pharmaceutical Sciences, Zhejiang University , Hangzhou , People's Republic of China
| | - Hiroyuki Osada
- b Chemical Biology Research Group, RIKEN Center for Sustainable Resource Science , Wako-shi , Japan
| | - Jianhua Qi
- a College of Pharmaceutical Sciences, Zhejiang University , Hangzhou , People's Republic of China
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872
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Queiroga FR, Marques-Santos LF, Hégaret H, Sassi R, Farias ND, Santana LN, da Silva PM. Effects of cyanobacteria Synechocystis spp. in the host-parasite model Crassostrea gasar-Perkinsus marinus. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2017; 187:100-107. [PMID: 28407513 DOI: 10.1016/j.aquatox.2017.03.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 03/18/2017] [Accepted: 03/24/2017] [Indexed: 06/07/2023]
Abstract
Perkinsosis is a disease caused by protozoan parasites from the Perkinsus genus. In Brazil, two species, P. beihaiensis and P. marinus, are frequently found infecting native oysters (Crassostrea gasar and C. rhizophorae) from cultured and wild populations in several states of the Northeast region. The impacts of this disease in bivalves from Brazil, as well as the interactions with environmental factors, are poorly studied. In the present work, we evaluated the in vitro effects of the cyanobacteria Synechocystis spp. on trophozoites of P. marinus and haemocytes of C. gasar. Four cyanobacteria strains isolated from the Northeast Brazilian coast were used as whole cultures (WCs) and extracellular products (ECPs). Trophozoites of P. marinus were exposed for short (4h) and long (48h and 7days, the latter only for ECPs) periods, while haemocytes were exposed for a short period (4h). Cellular and immune parameters, i.e. cell viability, cell count, reactive oxygen species production (ROS) and phagocytosis of inert (latex beads) and biological particles (zymosan and trophozoites of P. marinus) were measured by flow cytometry. The viability of P. marinus trophozoites was improved in response to WCs of Synechocystis spp., which could be a beneficial effect of the cyanobacteria providing nutrients and reducing reactive oxygen species. Long-term exposure of trophozoites to ECPs of cyanobacteria did not modify in vitro cell proliferation nor viability. In contrast, C. gasar haemocytes showed a reduction in cell viability when exposed to WCs, but not to ECPs. However, ROS production was not altered. Haemocyte ability to engulf latex particles was reduced when exposed mainly to ECPs of cyanobacteria; while neither the WCs nor the ECPs modified phagocytosis of the biological particles, zymosan and P. marinus. Our results suggest a negative effect of cyanobacteria from the Synechocystis genus on host immune cells, in contrast to a more beneficial effect on the parasite cell, which could together disrupt the balance of the host-parasite interaction and make oysters more susceptible to P. marinus as well as opportunistic infections.
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Affiliation(s)
- Fernando Ramos Queiroga
- Laboratório de Imunologia e Patologia de Invertebrados (LABIPI), Departamento de Biologia Molecular, Universidade Federal da Paraíba, 58051-900, João Pessoa, Paraíba, Brazil
| | - Luis Fernando Marques-Santos
- Laboratório de Biologia Celular e do Desenvolvimento (LABID), Departamento de Biologia Molecular, Universidade Federal da Paraíba, 58051-900, João Pessoa, Paraíba, Brazil
| | - Hélène Hégaret
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS UBO IRD IFREMER, Institut Universitaire Européen de la Mer, Technopôle Brest-Iroise, 29280, Plouzané, France
| | - Roberto Sassi
- Laboratório de Ambientes Recifais e Biotecnologia de Microalgas (LARBIM), Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, 58051-900, João Pessoa, Paraíba, Brazil
| | - Natanael Dantas Farias
- Laboratório de Imunologia e Patologia de Invertebrados (LABIPI), Departamento de Biologia Molecular, Universidade Federal da Paraíba, 58051-900, João Pessoa, Paraíba, Brazil
| | - Lucas Nunes Santana
- Laboratório de Imunologia e Patologia de Invertebrados (LABIPI), Departamento de Biologia Molecular, Universidade Federal da Paraíba, 58051-900, João Pessoa, Paraíba, Brazil
| | - Patricia Mirella da Silva
- Laboratório de Imunologia e Patologia de Invertebrados (LABIPI), Departamento de Biologia Molecular, Universidade Federal da Paraíba, 58051-900, João Pessoa, Paraíba, Brazil.
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873
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De B, Adhikari I, Nandy A, Saha A, Goswami BB. In silico modelling of thiazolidine derivatives with antioxidant potency: Models quantify the degree of contribution of molecular fragments towards the free radical scavenging ability. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.02.093] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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874
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Biologically Active Cu(II), Co(II), Ni(II) and Zn(II) Complexes of Pyrimidine Derivative Schiff Base: DNA Binding, Antioxidant, Antibacterial and In Vitro Anticancer Studies. J Fluoresc 2017; 27:1801-1814. [DOI: 10.1007/s10895-017-2118-y] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 05/14/2017] [Indexed: 10/19/2022]
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875
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Panda P, Dash P, Ghosh G. Chemometric profile, antioxidant and tyrosinase inhibitory activity of Camel's foot creeper leaves (Bauhinia vahlii). Nat Prod Res 2017; 32:596-599. [PMID: 28508671 DOI: 10.1080/14786419.2017.1326487] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The present study is the first effort to a comprehensive evaluation of antityrosinase activity and chemometric analysis of Bauhinia vahlii. The experimental results revealed that the methanol extract of Bauhinia vahlii (BVM) possesses higher polyphenolic compounds and total antioxidant activity than those reported elsewhere for other more conventionally and geographically different varieties. The BVM contain saturated fatty acids such as hexadecanoic acid (10.15%), octadecanoic acid (1.97%), oleic acid (0.61%) and cis-vaccenic acid (2.43%) along with vitamin E (12.71%), α-amyrin (9.84%), methyl salicylate (2.39%) and β-sitosterol (17.35%), which were mainly responsible for antioxidant as well as tyrosinase inhibitory activity. Tyrosinase inhibitory activity of this extract was comparable to that of Kojic acid. These findings suggested that the B. vahlii leaves could be exploited as potential source of natural antioxidant and tyrosinase inhibitory agent, as well.
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Affiliation(s)
- Pritipadma Panda
- a School of Pharmaceutical Sciences , Siksha 'O'Anusandhan University , Bhuabneswar , India
| | - Priyanka Dash
- a School of Pharmaceutical Sciences , Siksha 'O'Anusandhan University , Bhuabneswar , India
| | - Goutam Ghosh
- a School of Pharmaceutical Sciences , Siksha 'O'Anusandhan University , Bhuabneswar , India
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876
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Rosa A, Atzeri A, Nieddu M, Appendino G. New insights into the antioxidant activity and cytotoxicity of arzanol and effect of methylation on its biological properties. Chem Phys Lipids 2017; 205:55-64. [PMID: 28476462 DOI: 10.1016/j.chemphyslip.2017.05.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 04/19/2017] [Accepted: 05/02/2017] [Indexed: 01/08/2023]
Abstract
The heterodimeric phloroglucinyl pyrone arzanol (Arz) has raised considerable interest because of its antiviral, anti-inflammatory, and antioxidant activity. We have investigated the effect of methylation of the pyrone moiety on the antioxidant activity and cytotoxicity of Arz. This manoeuvre, that left the polyphenolic moiety unscathed, was nevertheless detrimental for antioxidant activity in both the cholesterol thermal degradation- and the Cu2+-induced liposome oxidation assays, providing evidence of structure-activity relationships that go beyond the preservation of the polyphenolic pharmacophore. The antioxidant activity of Arz was retained also in the Fe-NTA model of in vivo oxidative stress, with protective effect on the oxidative degradation of plasmatic lipids, unsaturated fatty acids and cholesterol. Both Arz and methylarzanol (Me-Arz) were devoid of toxic effect on colonic differentiated Caco-2 cells up to 100μM, but significantly reduced cancer Caco-2 cell viability at lower dosages. Arz could also selectively reduce viability of other cancer cell lines, [murine melanoma cells (B16F10 cells), human cervical carcinoma cells (HeLa cells)], suggesting that it can act as a selective modulator of cell processes typical of cancer cells. Taken together, our results qualify Arz as a lead structure for further in vivo investigation of its pharmacological potential.
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Affiliation(s)
- Antonella Rosa
- Department of Biomedical Sciences, University of Cagliari, Cittadella Universitaria, SS 554, Km 4.5, 09042 Monserrato, Cagliari, Italy.
| | - Angela Atzeri
- Department of Biomedical Sciences, University of Cagliari, Cittadella Universitaria, SS 554, Km 4.5, 09042 Monserrato, Cagliari, Italy
| | - Mariella Nieddu
- Department of Biomedical Sciences, University of Cagliari, Cittadella Universitaria, SS 554, Km 4.5, 09042 Monserrato, Cagliari, Italy
| | - Giovanni Appendino
- Department of Pharmaceutical Sciences, University of Eastern Piedmont, Largo Donegani 2, 28100 Novara, Italy
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877
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Eftekhari A, Ahmadian E, Panahi-Azar V, Hosseini H, Tabibiazar M, Maleki Dizaj S. Hepatoprotective and free radical scavenging actions of quercetin nanoparticles on aflatoxin B1-induced liver damage: in vitro/in vivo studies. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 46:411-420. [PMID: 28423950 DOI: 10.1080/21691401.2017.1315427] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The objective of present study was in vitro and in vivo evaluation of hepatoprotective and antioxidant activity of Quercetin nanoparticles (Q NPs) against toxicity induced by aflatoxin B1. The Q NPs were prepared using precipitation method. Hepatocytes were prepared by the method of collagenase enzyme perfusion via portal vein. The NPs were characterized in terms of size and morphology using dynamic light scattering (DLS) and transmission electron microscopy (TEM), respectively. The level of parameters, such as cell death, ROS formation, lipid peroxidation, mitochondrial membrane potential and cellular glutathione (GSH) content, in the aflatoxin B1-treated and non-treated hepatocytes were determined and the mentioned markers were assessed in the presence of Q NPs. The prepared NPs showed particle size of 52.70 nm with polydispersity index (PDI) of 0.18. In contrast to free Q, the administration of Q NPs more efficiently decreased the rate of ROS formation, lipid peroxidation and improved cell viability, mitochondrial membrane potential and glutathione level and showed a significant hepatoprotective efiect by reducing levels of aspartate aminotransferase, alanine aminotransferase and alkaline phosphatase. It is suggested that the Q NPs is a promising candidate for drug delivery, which enhances the hepatoprotective effect of Q against the cytotoxic effects of aflatoxin B1.
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Affiliation(s)
- Aziz Eftekhari
- a Drug Applied Research Center, Tabriz University of Medical Sciences , Tabriz , Iran.,b Pharmacology and Toxicology Department , School of Pharmacy, Tabriz University of Medical Sciences , Tabriz , Iran
| | - Elham Ahmadian
- a Drug Applied Research Center, Tabriz University of Medical Sciences , Tabriz , Iran.,b Pharmacology and Toxicology Department , School of Pharmacy, Tabriz University of Medical Sciences , Tabriz , Iran.,c Student Research Committee, Tabriz University of Medical Sciences , Tabriz , Iran
| | - Vahid Panahi-Azar
- a Drug Applied Research Center, Tabriz University of Medical Sciences , Tabriz , Iran
| | - Hedayat Hosseini
- d Department of Food Science and Technology , National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences , Tehran , Iran
| | - Mahnaz Tabibiazar
- e Department of Food Science and Technology, Faculty of Nutrition and food science , Tabriz University of Medical Sciences , Tabriz , Iran
| | - Solmaz Maleki Dizaj
- b Pharmacology and Toxicology Department , School of Pharmacy, Tabriz University of Medical Sciences , Tabriz , Iran.,c Student Research Committee, Tabriz University of Medical Sciences , Tabriz , Iran
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878
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Patra JK, Lee SW, Kwon YS, Park JG, Baek KH. Chemical characterization and antioxidant potential of volatile oil from an edible seaweed Porphyra tenera (Kjellman, 1897). Chem Cent J 2017; 11:34. [PMID: 29086819 PMCID: PMC5392187 DOI: 10.1186/s13065-017-0259-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 03/28/2017] [Indexed: 11/10/2022] Open
Abstract
Background Porphyra tenera (Kjellman, 1897) is the most common eatable red seaweed in Asia. In the present study, P. tenera volatile oil (PTVO) was extracted from dried P. tenera sheets that were used as food by the microwave hydrodistillation procedure, after which the characterization of its chemical constituents was done by gas chromatography and mass spectroscopy and its antioxidant potential was evaluated by a number of in vitro biochemical assays such as 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging, nitric oxide (NO) scavenging, superoxide radical scavenging, 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) radical scavenging, hydroxyl radical scavenging and reducing power assay and inhibition of lipid peroxidation. Results A total of 30 volatile compounds comprising about 99.4% of the total volume were identified, of which trans-beta-ionone (20.9%), hexadecanoic acid (9.2%) and 2,6-nonadienal (8.7%) were present in higher quantities. PTVO exhibited strong free radical scavenging activity by DPPH scavenging (44.62%), NO scavenging (28.45%) and superoxide scavenging (54.27%) at 500 µg/mL. Similarly, it displayed strong ABTS radical scavenging (IC50 value of 177.83 µg/mL), hydroxyl radical scavenging (IC50 value of 109.70 µg/mL), and moderate lipid peroxidation inhibition activity (IC50 value of 231.80 µg/mL) and reducing power (IC0.5 value of 126.58 µg/mL). PTVO exhibited strong antioxidant potential in a concentration dependent manner and the results were comparable with the BHT and α-tocopherol, taken as the reference standard compounds (positive controls). Conclusions Taken together, PTVO with potential bioactive chemical compounds and strong antioxidant activity could be utilized in the cosmetic industries for making antioxidant rich anti-aging and sun-screen lotion and in the food sector industries as food additives and preservatives.
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Affiliation(s)
- Jayanta Kumar Patra
- Research Institute of Biotechnology & Medical Converged Science, Dongguk University-Seoul, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, South Korea
| | - Se-Weon Lee
- International Technology Cooperation Center, RDA, Jeonju, 54875, Republic of Korea
| | - Yong-Suk Kwon
- Department of Biotechnology, Yeungnam University, Gyeongsan, Gyeongbuk, 38541, Republic of Korea
| | - Jae Gyu Park
- Pohang Center for Evaluation of Biomaterials, Pohang Technopark Foundation, Pohang, 37668, Republic of Korea.
| | - Kwang-Hyun Baek
- Department of Biotechnology, Yeungnam University, Gyeongsan, Gyeongbuk, 38541, Republic of Korea.
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879
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Losada-Barreiro S, Bravo-Díaz C. Free radicals and polyphenols: The redox chemistry of neurodegenerative diseases. Eur J Med Chem 2017; 133:379-402. [PMID: 28415050 DOI: 10.1016/j.ejmech.2017.03.061] [Citation(s) in RCA: 138] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 03/21/2017] [Accepted: 03/24/2017] [Indexed: 02/06/2023]
Abstract
The oxidation of bioorganic materials by air and, particularly, the oxidative stress involved in the cell loss and other pathologies associated with neurodegenerative diseases (NDs) are of enormous social and economic importance. NDs generally involve free radical reactions, beginning with the formation of an initiating radical by some redox, thermal or photochemical process, causing nucleic acid, protein and lipid oxidations and the production of harmful oxidative products. Physically, persons afflicted by NDs suffer progressive loss of memory and thinking ability, mood swings, personality changes, and loss of independence. Therefore, the development of antioxidant strategies to retard or minimize the oxidative degradation of bioorganic materials has been, and still is, of paramount importance. While we are aware of the importance of investigating the biological and medical aspects of the diseases, elucidation of the associated chemistry is crucial to understanding their progression, heading to intelligent chemical intervention to find more efficient therapies to prevent or delay the onset of the diseases. Accordingly, this review aims to provide the reader with a chemical base to understand the behavior and properties of the reactive oxygen species involved and of typical radical scavengers such as polyphenolic antioxidants. Some discussion on the structures of the various species, their formation, chemical reactivities and lifetimes is included. The ultimate goal is to understand how, when and where they form, how far they travel prior to react, which molecules are their targets, and how we can, eventually, control their activity to minimize their impact by means of chemical methods. Recent strategies explore chemical modifications of the hydrophobicity of potent, natural antioxidants to improve their efficiency by fine-tuning their concentrations at the reaction site.
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Affiliation(s)
- Sonia Losada-Barreiro
- Universidad de Vigo, Fac. Química, Dpto Química Física, 36200, Vigo, Spain; Requimte, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, 4169-007, Portugal
| | - Carlos Bravo-Díaz
- Universidad de Vigo, Fac. Química, Dpto Química Física, 36200, Vigo, Spain.
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880
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Gonçalves D, Lima C, Ferreira P, Costa P, Costa A, Figueiredo W, Cesar T. Orange juice as dietary source of antioxidants for patients with hepatitis C under antiviral therapy. Food Nutr Res 2017; 61:1296675. [PMID: 28469541 PMCID: PMC5404424 DOI: 10.1080/16546628.2017.1296675] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Accepted: 01/30/2017] [Indexed: 02/08/2023] Open
Abstract
Background: HCV causes alterations in liver metabolism, resulting in biochemical and nutritional disorders. Supplementation with antioxidants has been suggested to minimize the diseases effects. Objective: This study assessed whether orange juice, a source of citrus flavonoids and vitamin C, may contribute to the treatment of patients with chronic hepatitis C. Design: Anthropometric, hemodynamic, dietary, and biochemical parameters, CRP and liver enzymes were measured in 43 adult patients of both genders who were diagnosed with chronic hepatitis C and were under antiviral therapy. Twenty-three patients were supplemented with orange juice for eight consecutive weeks, while 20 were enrolled as control group. Results: Following regular use of orange juice, no alterations were found in body mass, fat, and waist circumference. The serum levels of total cholesterol, LDL-cholesterol, CRP and parameters of oxidative stress decreased in the orange juice group. Furthermore, the levels of the liver enzyme AST decreased in those who had high levels before the intervention. Conclusion: The orange juice was a convenient food in the diet of patients due to the increase in antioxidant capacity and decreased inflammation and cholesterol in blood serum, in addition to maintaining body mass, which protect against the harmful effects caused by the chronic hepatitis C virus.
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Affiliation(s)
- Danielle Gonçalves
- Food and Nutrition Department, School of Pharmaceutical Sciences, Universidade Estadual Paulista (UNESP), Araraquara, Brazil
| | - Claudia Lima
- Food and Nutrition Department, School of Pharmaceutical Sciences, Universidade Estadual Paulista (UNESP), Araraquara, Brazil
| | - Paula Ferreira
- Food and Nutrition Department, School of Pharmaceutical Sciences, Universidade Estadual Paulista (UNESP), Araraquara, Brazil
| | - Paulo Costa
- Clinical Analysis Department, School of Pharmaceutical Sciences, Universidade Estadual Paulista (UNESP), Araraquara, Brazil
| | - Angela Costa
- Special Health Service of Araraquara (SESA), Faculty of Public Health, Universidade de Sao Paulo (USP), Araraquara, Brazil
| | - Walter Figueiredo
- Special Health Service of Araraquara (SESA), Faculty of Public Health, Universidade de Sao Paulo (USP), Araraquara, Brazil
| | - Thais Cesar
- Food and Nutrition Department, School of Pharmaceutical Sciences, Universidade Estadual Paulista (UNESP), Araraquara, Brazil
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881
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Synthesis, characterizations, biological activities and docking studies of novel dihydroxy derivatives of natural phenolic monoterpenoids containing azomethine linkage. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-2933-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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882
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Lauw SJL, Yeo JYH, Chiang Z, Webster RD. Comparing the Relative Reactivities of Food and Vitamin Molecules Toward Electrochemically Generated Superoxide in Dimethylformamide. ChemElectroChem 2017. [DOI: 10.1002/celc.201600790] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Sherman J. L. Lauw
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Joyce Y. H. Yeo
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Zhong Chiang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Richard D. Webster
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
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883
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Martins M, Azoia NG, Melle-Franco M, Ribeiro A, Cavaco-Paulo A. Permeation of skin with (C 60) fullerene dispersions. Eng Life Sci 2017; 17:732-738. [PMID: 32624818 DOI: 10.1002/elsc.201600244] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 01/05/2017] [Accepted: 01/20/2017] [Indexed: 12/19/2022] Open
Abstract
Dispersions in transcutol/isopropyl myristate make C60 fullerene molecules suitable for transdermal delivery. We found that C60 can successfully permeate the skin using pig skin in Franz diffusion cells. Molecular dynamics simulations and transmission electron microscopy confirmed these observations. Basic cosmetic formulations with transcutol/isopropyl myristate without harsh organic solvents show a high potential for delivery of C60 for biopharmaceutical and cosmetics applications.
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Affiliation(s)
- Madalena Martins
- Centre of Biological Engineering (CEB) University of Minho Campus of Gualtar Braga Portugal
| | - Nuno G Azoia
- Centre of Biological Engineering (CEB) University of Minho Campus of Gualtar Braga Portugal
| | - Manuel Melle-Franco
- CICECO-Aveiro Institute of Materials University of Aveiro Campus Universitário de Santiago Aveiro Portugal
| | - Artur Ribeiro
- Centre of Biological Engineering (CEB) University of Minho Campus of Gualtar Braga Portugal
| | - Artur Cavaco-Paulo
- Centre of Biological Engineering (CEB) University of Minho Campus of Gualtar Braga Portugal
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884
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Preparation, characterization, and in vitro diffusion study of nonwoven electrospun nanofiber of curcumin-loaded cellulose acetate phthalate polymer. Saudi Pharm J 2017; 25:921-926. [PMID: 28951679 PMCID: PMC5605889 DOI: 10.1016/j.jsps.2017.02.004] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 02/08/2017] [Indexed: 02/02/2023] Open
Abstract
Nonwoven nano fibers of cellulose acetate phthalate were developed successfully. The fibers were loaded with curcumin and its in vitro transdermal release property was studied. The as-prepared fibers demonstrated controlled in vitro transdermal delivery of CUR for up to 24 h.
Novel curcumin (CUR)-loaded cellulose acetate phthalate (CAP) nonwoven electrospun nanofiber (NF) transdermal mat was developed and evaluated for its in vitro CUR diffusion properties. Various CAP solutions from 5 to 20 wt% were tested; 17.5 wt% was found to be a suitable concentration for NF fabrication without defects, such as bubble or ribbon structures. The selected wt% CAP solution was loaded with CUR and electrospun into NFs. The prepared CUR-loaded NFs were characterized using scanning electron microscopy, X-ray diffraction, ultraviolet–visible spectroscopy, thermogravimetric analysis (TGA), and in vitro diffusion studies. The as-prepared fibers demonstrated controlled in vitro transdermal delivery of CUR for up to 24 h.
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885
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Komeri R, Thankam FG, Muthu J. Free radical scavenging injectable hydrogels for regenerative therapy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 71:100-110. [DOI: 10.1016/j.msec.2016.09.087] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 08/31/2016] [Accepted: 09/29/2016] [Indexed: 12/29/2022]
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886
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Kesavan M, Vinoth Kumar G, Dhaveethu Raja J, Anitha K, Karthikeyan S, Rajesh J. DNA interaction, antimicrobial, antioxidant and anticancer studies on Cu(II) complexes of Luotonin A. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 167:20-28. [DOI: 10.1016/j.jphotobiol.2016.11.024] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 11/07/2016] [Indexed: 01/18/2023]
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887
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Spahr S, Cirpka OA, von Gunten U, Hofstetter TB. Formation of N-Nitrosodimethylamine during Chloramination of Secondary and Tertiary Amines: Role of Molecular Oxygen and Radical Intermediates. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:280-290. [PMID: 27958701 DOI: 10.1021/acs.est.6b04780] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
N-Nitrosodimethylamine (NDMA) is a carcinogenic disinfection byproduct from water chloramination. Despite the identification of numerous NDMA precursors, essential parts of the reaction mechanism such as the incorporation of molecular O2 are poorly understood. In laboratory model systems for the chloramination of secondary and tertiary amines, we investigated the kinetics of precursor disappearance and NDMA formation, quantified the stoichiometries of monochloramine (NH2Cl) and aqueous O2 consumption, derived 18O-kinetic isotope effects (18O-KIE) for the reactions of aqueous O2, and studied the impact of radical scavengers on NDMA formation. Although the molar NDMA yields from five N,N-dimethylamine-containing precursors varied between 1.4% and 90%, we observed the stoichiometric removal of one O2 per N,N-dimethylamine group of the precursor indicating that the oxygenation of N atoms did not determine the molar NDMA yield. Small 18O-KIEs between 1.0026 ± 0.0003 and 1.0092 ± 0.0009 found for all precursors as well as completely inhibited NDMA formation in the presence of radical scavengers (ABTS and trolox) imply that O2 reacted with radical species. Our study suggests that aminyl radicals from the oxidation of organic amines by NH2Cl and N-peroxyl radicals from the reaction of aminyl radicals with aqueous O2 are part of the NDMA formation mechanism.
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Affiliation(s)
- Stephanie Spahr
- Eawag, Swiss Federal Institute of Aquatic Science and Technology , CH-8600 Dübendorf, Switzerland
- School of Architecture, Civil and Environmental Engineering (ENAC), Ecole Polytechnique Federale de Lausanne (EPFL) , CH-1015 Lausanne, Switzerland
| | - Olaf A Cirpka
- Center for Applied Geoscience, University of Tübingen , D-72074 Tübingen, Germany
| | - Urs von Gunten
- Eawag, Swiss Federal Institute of Aquatic Science and Technology , CH-8600 Dübendorf, Switzerland
- School of Architecture, Civil and Environmental Engineering (ENAC), Ecole Polytechnique Federale de Lausanne (EPFL) , CH-1015 Lausanne, Switzerland
- Institute of Biogeochemistry and Pollutant Dynamics, ETH Zürich , CH-8092 Zürich, Switzerland
| | - Thomas B Hofstetter
- Eawag, Swiss Federal Institute of Aquatic Science and Technology , CH-8600 Dübendorf, Switzerland
- Institute of Biogeochemistry and Pollutant Dynamics, ETH Zürich , CH-8092 Zürich, Switzerland
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888
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Mukhopadhyay A, Jacob L, Venkataramani S. Dehydro-oxazole, thiazole and imidazole radicals: insights into the electronic structure, stability and reactivity aspects. Phys Chem Chem Phys 2017; 19:394-407. [DOI: 10.1039/c6cp05677f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Computations on the effect of heteroatoms in the structural, stability and reactivity aspects of the oxazole, thiazole and imidazole radicals.
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Affiliation(s)
- Anamika Mukhopadhyay
- Department of Chemical Sciences
- Indian Institute of Science Education and Research
- IISER Mohali
- Mohali
- India
| | - Lilit Jacob
- Department of Chemical Sciences
- Indian Institute of Science Education and Research
- IISER Mohali
- Mohali
- India
| | - Sugumar Venkataramani
- Department of Chemical Sciences
- Indian Institute of Science Education and Research
- IISER Mohali
- Mohali
- India
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889
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Mitra D, Basu A, Das B, Jena AK, De A, Das M, Bhattacharya S, Samanta A. Gum odina: an emerging gut modulating approach in colorectal cancer prevention. RSC Adv 2017. [DOI: 10.1039/c7ra04077f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This study is focused on Gum Odina (GO), a reported prebiotic in our earlier work, and its impact on colorectal cancer (CRC).
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Affiliation(s)
- Debmalya Mitra
- Division of Microbiology
- Department of Pharmaceutical Technology
- Jadavpur University
- Kolkata
- India
| | - Abhishek Basu
- Department of Cancer Chemoprevention
- Chittaranjan National Cancer Institute
- Kolkata
- India
| | - Bhaskar Das
- Division of Microbiology
- Department of Pharmaceutical Technology
- Jadavpur University
- Kolkata
- India
| | - Aditya Kr. Jena
- Division of Microbiology
- Department of Pharmaceutical Technology
- Jadavpur University
- Kolkata
- India
| | - Arnab De
- Division of Microbiology
- Department of Pharmaceutical Technology
- Jadavpur University
- Kolkata
- India
| | - Mousumi Das
- Division of Microbiology
- Department of Pharmaceutical Technology
- Jadavpur University
- Kolkata
- India
| | - Sudin Bhattacharya
- Department of Cancer Chemoprevention
- Chittaranjan National Cancer Institute
- Kolkata
- India
| | - Amalesh Samanta
- Division of Microbiology
- Department of Pharmaceutical Technology
- Jadavpur University
- Kolkata
- India
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890
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Abstract
We investigated the aqueous and ethanolic extracts of different forms (local names:muraandchora) of turmeric(Curcuma longa)from the Khulna and Chittagong divisions of Bangladesh for their antioxidant properties and polyphenol, flavonoid, tannin, and ascorbic acid contents. The antioxidant activity was determined using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical-scavenging activity and ferric reducing antioxidant power (FRAP) values. The ethanolic extract of Chittagong’s mura contained the highest concentrations of polyphenols (16.07%), flavonoids (9.66%), and ascorbic acid (0.09 mg/100 g) and chora resulted in high yields (17.39%). The ethanolic extract of Khulna’s mura showed a higher DPPH radical-scavenging activity with the lowest 50% inhibitory concentration (IC50) (1.08 μg/mL), while Khulna’s chora had the highest FRAP value (4204.46±74.48 μM Fe[II]per 100 g). Overall, the ethanolic extract had higher antioxidant properties than those in the aqueous extract. However, the tannin concentration was lower in the ethanolic extract. We conclude that the turmeric varieties investigated in this study are useful sources of natural antioxidants, which confer significant protection against free radical damage.
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891
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Liu Y, Wang Z, Li H, Liang M, Yang L. In vitro antioxidant activity of rice protein affected by alkaline degree and gastrointestinal protease digestion. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2016; 96:4940-4950. [PMID: 27376465 DOI: 10.1002/jsfa.7877] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 06/15/2016] [Accepted: 06/23/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND To elucidate whether and how alkali treatment, which is a common process for rice protein (RP) extraction, affects antioxidant activity of RP, the different degree of alkali (from 0.1% to 0.4% of NaOH) was used to extract RP (RP-1, RP-2, RP-3, RP-4). RESULTS The antioxidant capacities of scavenging free radicals [2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonic acid] diammonium salt, ABTS; 1,1-diphenyl-2-picrylhydrazyl, DPPH), chelating metals (iron, copper) and reducing power investigated in the hydrolysates of RPs (RP-1, RP-2, RP-3, RP-4) during in vitro pepsin-pancreatin digestion were effectively affected by alkali treatment. The present study demonstrated that the weakest antioxidant responses to ABTS radical-scavenging activity, DPPH radical-scavenging activity, iron chelating activity, copper chelating activity and reducing power were produced by RP-4 extracted by the highest alkali proportion (0.4% NaOH). CONCULSION The present study indicates that antioxidant capacity of RP could be more readily depressed by strict alkali degree and affected by gastrointestinal proteases. Results suggest that alkali extraction is a vital process to regulate the antioxidant activity of RP through modifying the compositions of amino acids, which are dependent on alkali magnitude. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Ye Liu
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, China
| | - Zhengxuan Wang
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, China
| | - Hui Li
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, China
| | - Mingcai Liang
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, China
| | - Lin Yang
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, China.
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892
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Nawaz H, Shad MA, Rehman T, Ramzan A. Influence of high-dose gamma radiation and particle size on antioxidant properties of Maize ( Zea mays L.) flour. BRAZ J PHARM SCI 2016. [DOI: 10.1590/s1984-82502016000400022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Haq Nawaz
- Bahauddin Zakariya University, Pakistan
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893
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Oil recovery in rosehip seeds from food plant waste products using supercritical CO 2 extraction. J Supercrit Fluids 2016. [DOI: 10.1016/j.supflu.2016.08.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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894
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Yusuf M, Khan M, Khan RA, Maghrabi IA, Ahmed B. Polysorbate-80-coated, polymeric curcumin nanoparticles for in vivo anti-depressant activity across BBB and envisaged biomolecular mechanism of action through a proposed pharmacophore model. J Microencapsul 2016; 33:646-655. [PMID: 27682805 DOI: 10.1080/02652048.2016.1242666] [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] [Indexed: 01/09/2023]
Abstract
Depression is a modern world epidemic. Its main causative factor is oxidative stress, as reported in study subjects. Natural products are yet to show significant therapeutic effects in comparison with synthetic drugs. Current study deals with the preparation of brain-targeted polysorbate-80-coated curcumin PLGA nanoparticles (PS-80-CUR-NP), and their characterisation via Spectral and optical methods. PS-80-CUR-NP were evaluated against the oxidative stress-mediated depressant (OSMD) activity via Force despair, Tail suspension tests and stress biomarker assay (SOD and catalase activity). A significant reduction in immobility (p < 0.01) in force despair and tail suspension test and a significant increase (p < 0.001 and p < 0.01) in SOD and catalase activity was found and compared with stress control, which confirmed the OSMD activity of PS-80-CUR-NP at 5 mg equivalent dose. Further, AUC(0.5-15 h) curve of brain homogenates estimated the curcumin concentration of 1.73 ng/g C max at T max 3 h via HPLC technique.
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Affiliation(s)
- Mohammad Yusuf
- a College of Pharmacy , Taif University , Taif , Al-Haweiah , Kingdom of Saudi Arabia.,b Department of Pharmaceutical Chemistry , Jamia Hamdard , New Delhi , India
| | - Maria Khan
- a College of Pharmacy , Taif University , Taif , Al-Haweiah , Kingdom of Saudi Arabia
| | - Riaz A Khan
- b Department of Pharmaceutical Chemistry , Jamia Hamdard , New Delhi , India
| | | | - Bahar Ahmed
- b Department of Pharmaceutical Chemistry , Jamia Hamdard , New Delhi , India
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895
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González-Ponce HA, Martínez-Saldaña MC, Rincón-Sánchez AR, Sumaya-Martínez MT, Buist-Homan M, Faber KN, Moshage H, Jaramillo-Juárez F. Hepatoprotective Effect of Opuntia robusta and Opuntia streptacantha Fruits against Acetaminophen-Induced Acute Liver Damage. Nutrients 2016; 8:E607. [PMID: 27782042 PMCID: PMC5083995 DOI: 10.3390/nu8100607] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Accepted: 09/20/2016] [Indexed: 12/25/2022] Open
Abstract
Acetaminophen (APAP)-induced acute liver failure (ALF) is a serious health problem in developed countries. N-acetyl-L-cysteine (NAC), the current therapy for APAP-induced ALF, is not always effective, and liver transplantation is often needed. Opuntia spp. fruits are an important source of nutrients and contain high levels of bioactive compounds, including antioxidants. The aim of this study was to evaluate the hepatoprotective effect of Opuntia robusta and Opuntia streptacantha extracts against APAP-induced ALF. In addition, we analyzed the antioxidant activities of these extracts. Fruit extracts (800mg/kg/day, orally) were given prophylactically to male Wistar rats before intoxication with APAP (500 mg/kg, intraperitoneally). Rat hepatocyte cultures were exposed to 20mmol/LAPAP, and necrosis was assessed by LDH leakage. Opuntia robusta had significantly higher levels of antioxidants than Opuntia streptacantha. Both extracts significantly attenuated APAP-induced injury markers AST, ALT and ALP and improved liver histology. The Opuntia extracts reversed APAP-induced depletion of liver GSH and glycogen stores. In cultured hepatocytes, Opuntia extracts significantly reduced leakage of LDH and cell necrosis, both prophylactically and therapeutically. Both extracts appeared to be superior to NAC when used therapeutically. We conclude that Opuntia extracts are hepatoprotective and can be used as a nutraceutical to prevent ALF.
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Affiliation(s)
- Herson Antonio González-Ponce
- Department of Physiology and Pharmacology, Basic Science Center, Universidad Autónoma de Aguascalientes, Aguascalientes 20131, Mexico;
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen 9713 GZ, The Netherlands; (M.B.-H.); (K.N.F.); (H.M.)
| | | | - Ana Rosa Rincón-Sánchez
- Department of Physiology, University Center of Health Sciences, Universidad de Guadalajara, Guadalajara 44340, Mexico;
| | - María Teresa Sumaya-Martínez
- Food Technology Unit, Secretary of Research and Graduate Studies, Universidad Autónoma de Nayarit, Tepic 63160, Mexico;
| | - Manon Buist-Homan
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen 9713 GZ, The Netherlands; (M.B.-H.); (K.N.F.); (H.M.)
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen 9713 GZ, The Netherlands
| | - Klaas Nico Faber
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen 9713 GZ, The Netherlands; (M.B.-H.); (K.N.F.); (H.M.)
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen 9713 GZ, The Netherlands
| | - Han Moshage
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen 9713 GZ, The Netherlands; (M.B.-H.); (K.N.F.); (H.M.)
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen 9713 GZ, The Netherlands
| | - Fernando Jaramillo-Juárez
- Department of Physiology and Pharmacology, Basic Science Center, Universidad Autónoma de Aguascalientes, Aguascalientes 20131, Mexico;
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896
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Determination of Antioxidant Activity of Brandy and Other Aged Beverages by Electrochemical and Photochemiluminescence Methods. FOOD ANAL METHOD 2016. [DOI: 10.1007/s12161-016-0667-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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897
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Therapeutic Strategies for Oxidative Stress-Related Cardiovascular Diseases: Removal of Excess Reactive Oxygen Species in Adult Stem Cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:2483163. [PMID: 27668035 PMCID: PMC5030421 DOI: 10.1155/2016/2483163] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 08/17/2016] [Indexed: 02/07/2023]
Abstract
Accumulating evidence indicates that acute and chronic uncontrolled overproduction of oxidative stress-related factors including reactive oxygen species (ROS) causes cardiovascular diseases (CVDs), atherosclerosis, and diabetes. Moreover ROS mediate various signaling pathways underlying vascular inflammation in ischemic tissues. With respect to stem cell-based therapy, several studies clearly indicate that modulating antioxidant production at cellular levels enhances stem/progenitor cell functionalities, including proliferation, long-term survival in ischemic tissues, and complete differentiation of transplanted cells into mature vascular cells. Recently emerging therapeutic strategies involving adult stem cells, including endothelial progenitor cells (EPCs), for treating ischemic CVDs have highlighted the need to control intracellular ROS production, because it critically affects the replicative senescence of ex vivo expanded therapeutic cells. Better understanding of the complexity of cellular ROS in stem cell biology might improve cell survival in ischemic tissues and enhance the regenerative potentials of transplanted stem/progenitor cells. In this review, we will discuss the nature and sources of ROS, drug-based therapeutic strategies for scavenging ROS, and EPC based therapeutic strategies for treating oxidative stress-related CVDs. Furthermore, we will discuss whether primed EPCs pretreated with natural ROS-scavenging compounds are crucial and promising therapeutic strategies for vascular repair.
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898
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Griffiths K, Aggarwal BB, Singh RB, Buttar HS, Wilson D, De Meester F. Food Antioxidants and Their Anti-Inflammatory Properties: A Potential Role in Cardiovascular Diseases and Cancer Prevention. Diseases 2016; 4:E28. [PMID: 28933408 PMCID: PMC5456284 DOI: 10.3390/diseases4030028] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 07/18/2016] [Accepted: 07/18/2016] [Indexed: 12/24/2022] Open
Abstract
Mediterranean-style diets caused a significant decline in cardiovascular diseases (CVDs) in early landmark studies. The effect of a traditional Mediterranean diet on lipoprotein oxidation showed that there was a significant reduction in oxidative stress in the intervention group (Mediterranean diet + Virgin Olive Oil) compared to the low-fat diet group. Conversely, the increase in oxidative stress causing inflammation is a unifying hypothesis for predisposing people to atherosclerosis, carcinogenesis, and osteoporosis. The impact of antioxidants and anti-inflammatory agents on cancer and cardiovascular disease, and the interventive mechanisms for the inhibition of proliferation, inflammation, invasion, metastasis, and activation of apoptosis were explored. Following the Great Oxygen Event some 2.3 billion years ago, organisms have needed antioxidants to survive. Natural products in food preservatives are preferable to synthetic compounds due to their lower volatility and stability and generally higher antioxidant potential. Free radicals, reactive oxygen species, antioxidants, pro-oxidants and inflammation are described with examples of free radical damage based on the hydroxyl, nitric oxide and superoxide radicals. Flavonoid antioxidants with 2- or 3-phenylchroman structures such as quercetin, kaempferol, myricetin, apigenin, and luteolin, constituents of fruits, vegetables, tea, and wine, which may reduce coronary disease and cancer, are described. The protective effect of flavonoids on the DNA damage caused by hydroxyl radicals through chelation is an important mechanism, though the converse may be possible, e.g., quercetin. The antioxidant properties of carotenoids, which are dietary natural pigments, have been studied in relation to breast cancer risk and an inverse association was found with plasma concentrations: higher levels mean lower risk. The manipulation of primary and secondary human metabolomes derived especially from existing or transformed gut microbiota was explored as a possible alternative to single-agent dietary interventions for cancer and cardiovascular disease. Sustained oxidative stress leading to inflammation and thence to possibly to cancer and cardiovascular disease is described for spices and herbs, using curcumin as an example of an intervention, based on activation of transcription factors which suggest that oxidative stress, chronic inflammation, and cancer are closely linked.
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Affiliation(s)
- Keith Griffiths
- Emeritus Professor of Cancer Research, University of Wales College of Medicine, Laurel Cottage, Castleton, Cardiff CF3 2UR, UK.
| | | | - Ram B Singh
- Halberg Hospital and Research Institute, Civil Lines, Moradabad, UP 244001, India.
| | - Harpal S Buttar
- Department of Pathology & Laboratory Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5 , Canada.
| | - Douglas Wilson
- School Medicine Pharmacy and Health, Durham University, Durham TS17 6BH, UK.
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899
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Tuyen PT, Khang DT, Minh LT, Minh TN, Thu Ha PT, Elzaawely AA, Xuan TD. Phenolic Compounds and Antioxidant Activity of <i>Castanopsis</i> <i>phuthoensis</i> and <i>Castanopsis</i> g<i>randicicatricata</i>. INTERNATIONAL LETTERS OF NATURAL SCIENCES 2016. [DOI: 10.56431/p-2411sl] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
In this study, total phenolic, flavonoid contents, antioxidant capacity, and phenolic compositions of Castanopsis phuthoensis and Castanopsis grandicicatricata (Fagaceae family) were investigated. It was found that bark extracts were rich of phenolic contents, whereas leaf extracts were abundant of flavonoids. The total phenolics varied from 11.20 to 35.47 mg gallic acid equivalent g-1 dry weight (DW), and the total flavonoids were from 2.24 to 12.55 mg rutin equivalent g-1 DW. The results of antioxidant activity showed that the DPPH (1,1-diphenyl-2-picryl-hydrazyl) radical scavenging activity of the free phenolic extracts were higher than the bound phenolic extracts. Regarding the reducing power and β-carotene bleaching assays, the free phenolic extracts showed remarkably strong antioxidant capacity that were similar to the levels of the standard BHT (dibutyl hydroxytoluene) did. It could be concluded that free phenolic extracts were more effective in antioxidant activities than bound phenolic extracts. A highly significant correlation between phenolic contents and antioxidant activity in extracts were observed. By HPLC analysis, seven phenolic acids were detected including gallic, p-hydroxybenzoic, vanillic, sinapic, p-coumaric, ellagic, and vanillin. Of which, gallic, ellagic, and sinapic acids were the most abundant compounds in the two species. The results suggest C. phuthoensis and C. grandicicatricata contain rich sources of natural antioxidants and phenolic compounds which are probably considered in pharmaceutical use.
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900
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Tuyen PT, Khang DT, Minh LT, Minh TN, Thu Ha PT, Elzaawely AA, Xuan TD. Phenolic Compounds and Antioxidant Activity of <i>Castanopsis</i> <i>phuthoensis</i> and <i>Castanopsis</i> g<i>randicicatricata</i>. INTERNATIONAL LETTERS OF NATURAL SCIENCES 2016. [DOI: 10.18052/www.scipress.com/ilns.55.77] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
In this study, total phenolic, flavonoid contents, antioxidant capacity, and phenolic compositions of Castanopsis phuthoensis and Castanopsis grandicicatricata (Fagaceae family) were investigated. It was found that bark extracts were rich of phenolic contents, whereas leaf extracts were abundant of flavonoids. The total phenolics varied from 11.20 to 35.47 mg gallic acid equivalent g-1 dry weight (DW), and the total flavonoids were from 2.24 to 12.55 mg rutin equivalent g-1 DW. The results of antioxidant activity showed that the DPPH (1,1-diphenyl-2-picryl-hydrazyl) radical scavenging activity of the free phenolic extracts were higher than the bound phenolic extracts. Regarding the reducing power and β-carotene bleaching assays, the free phenolic extracts showed remarkably strong antioxidant capacity that were similar to the levels of the standard BHT (dibutyl hydroxytoluene) did. It could be concluded that free phenolic extracts were more effective in antioxidant activities than bound phenolic extracts. A highly significant correlation between phenolic contents and antioxidant activity in extracts were observed. By HPLC analysis, seven phenolic acids were detected including gallic, p-hydroxybenzoic, vanillic, sinapic, p-coumaric, ellagic, and vanillin. Of which, gallic, ellagic, and sinapic acids were the most abundant compounds in the two species. The results suggest C. phuthoensis and C. grandicicatricata contain rich sources of natural antioxidants and phenolic compounds which are probably considered in pharmaceutical use.
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