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Natassia Alberici Anselmo, Leticia Colombo Paskakulis, Renata Correia Garcias, Fernanda Fortuci Resende Botelho, Giovana Queda Toledo, Maria Fernanda Ribeiro Cury, Natiele Zanardo Carvalho, Glória Elisa Florido Mendes, Tatiane Iembo, Thaís Santana Gastardelo Bizotto, Patricia Maluf Cury, Agnaldo Bruno Chies, Carla Patrícia Carlos
INTRODUCTION: Ischemia-reperfusion (IR) injury results from inflammation and oxidative stress, among other factors. Because of its anti-inflammatory and antioxidant properties, the Brazil nut (BN) might attenuate IR renal injury. OBJECTIVE: The aim of the present study was to investigate whether the intake of BN prevents or reduces IR kidney injury and inflammation, improving renal function and decreasing oxidative stress. METHODS: Male Wistar rats were distributed into six groups (N=6/group): SHAM (control), SHAM treated with 75 or 150 mg of BN, IR, and IR treated with 75 or 150 mg of BN...
April 19, 2018: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
Yong Zhao, Kenneth Thermann Kongstad, Anna Katharina Jäger, John Nielsen, Dan Staerk
In this paper, quadruple high-resolution α-glucosidase/α-amylase/PTP1B/radical scavenging profiling combined with HPLC-HRMS-SPE-NMR were used for studying the polypharmacological properties of crude root bark extract of Morus alba L. This species is used as an anti-diabetic principle in many traditional treatment systems around the world, and the crude ethyl acetate extract of M. alba root bark was found to inhibit α-glucosidase, α-amylase and protein-tyrosine phosphatase 1B (PTP1B) with IC50 values of 1...
April 21, 2018: Journal of Chromatography. A
Ismail Abiola Adebayo, Hasni Arsad, Mohd Razip Samian
Background: Academic reports have confirmed Moringa oleifera leaves to possess significant antioxidant capacities; however, such studies are unavailable for its ripe seeds even though they are more desirous for consumption due to their sweet taste. Objective: In this study, we investigated antioxidant capacities of four polar extracts (crude water, ethanol, butanol, and aqueous residue) from the plant's ripe seeds. Materials and Methods: Phytochemicals were extracted from the ripe seeds of M...
April 2018: Pharmacognosy Magazine
Hugo Vilhena, Marta Figueiredo, José Cerón, Josep Pastor, Sónia Miranda, Hélder Craveiro, Maria A Pires, Fernando Tecles, Camila P Rubio, Roman Dabrowski, Sofia Duarte, Ana C Silvestre-Ferreira, Asta Tvarijonaviciute
Acute phase proteins (APP) and biomarkers of oxidative status have proved to be clinically useful biomarkers of pyometra in different species. Despite pyometra is considered one of the most important feline reproductive diseases, information about the APP response and the oxidative status in queens with pyometra is lacking. This study aimed to evaluate the APP and the antioxidant responses at diagnosis and in the post-operative period in feline pyometra. Serum concentrations of serum amyloid A (SAA), haptoglobin (Hp), albumin, total serum thiols (Thiol) and total antioxidant capacity determined by different assays, including trolox equivalent antioxidant capacity (TEAC) assessed by two different methodologies (TEAC1 and TEAC2), ferric reducing ability of plasma (FRAP), and cupric reducing antioxidant capacity (CUPRAC), were determined in 23 queens with pyometra at diagnosis and in 13 healthy control queens submitted to elective ovariohysterectomy...
April 22, 2018: Theriogenology
Sandra Pimentel-Moral, Celia Rodríguez-Pérez, Antonio Segura-Carretero, Antonio Martínez-Férez
New functional oils (extra virgin olive oil, EVOO and sunflower oil, SO) containing antioxidants from Hibiscus sabdariffa extract were developed by W/O emulsion. Their physical and chemical stability was measured over time. The lowest coalescence rate was obtained with 8 and 12 wt% surfactant amount for EVOO and SO emulsions, respectively. Before the evaluation of the oxidative stability, an optimization of phenolic compounds extraction from emulsions by multi-response surface methodology was performed. EVOO emulsions were chemically more stable over time than SO emulsions in terms of total phenolic content (TPC), antioxidant activity and chemical composition measured by HPLC-ESI...
September 15, 2018: Food Chemistry
Jia Jiang, Shuang Zang, Dan Li, Kun Wang, Sizhu Tian, Aimin Yu, Ziwei Zhang
Electron spin resonance spectroscopy was applied to determining the antioxidant capacity of eight thiol-containing compounds, including reduced glutathione, N-acetyl-L-cycsteine, methimazole, captopril, and tiopronin with one thiol group, 1,4-dithioerythritol and 2,3-dimercapto-1-propanol with two thiol groups, as well as L-cystine with no free thiol group. Cu2+ ion gives an electron spin resonance signal and is reduced to Cu+ ion with no electron spin resonance signal by the free thiol group in the compounds...
July 1, 2018: Talanta
Sanja Kostadinović Veličkovska, Augustin Catalin Moţ, Saša Mitrev, Rubin Gulaboski, Ludger Brühl, Hamed Mirhosseini, Radu Silaghi-Dumitrescu, Bertrand Matthäus
The bioactive compounds and "in vitro" antioxidant activity measured by three antioxidant assays of some traditional and non-traditional cold-pressed edible oils from Macedonia were object of this study. The fatty acid composition showed dominance of monounsaturated oleic acid in "sweet" and "bitter" apricot kernel oils with percentages of 66.7 ± 0.5 and 57.8 ± 0.3%, respectively. The most dominant fatty acid in paprika seed oil was polyunsaturated linoleic acid with abundance of 69...
May 2018: Journal of Food Science and Technology
Irina Ielciu, Daniela Hanganu, Ramona Păltinean, Laurian Vlase, Michel Frédérich, Ana-Maria Gheldiu, Daniela Benedec, Gianina Crişan
Echinocystis lobata (Michx.) Torr. et A.Gray is a spontaneous species in the Romanian flora, lesser studied by scientific literature, but which has proved significant activities in traditional medicine. The present study is aimed to provide data on the polyphenolic compounds in the composition of the flowers of this species and to test their biological potential. Polyphenols were identified and quantified using an HPLC-MS method. Tested biological activities were the cytotoxic, anti-plasmodial and antioxidant ones...
March 2018: Pakistan Journal of Pharmaceutical Sciences
Lorena Luna, Mario J Simirgiotis, Beatriz Lima, Jorge Bórquez, Gabriela E Feresin, Alejandro Tapia
The seriated extracts of petroleum ether (PE-E), dichloromethane (DCM-E) and methanol extracts (MeOH-E) from the aerial parts of the native South American plant Tetraglochin ameghinoi (Rosaceae), were evaluated regarding their antioxidant and antibacterial activities. The antioxidant properties were evaluated by free radical scavenging methods (DPPH and TEAC), ferric-reducing antioxidant power (FRAP) and lipoperoxidation in erythrocytes (LP), while the antibacterial activity was performed against Gram-positive and Gram-negative bacteria according to the Clinical and Laboratory Standards Institute (CLSI) guidelines...
March 29, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Ze-Hong Wu, Dong Liu, Ying Xu, Jian-Liang Chen, Wen-Han Lin
Chemical examination of an EtOAc extract of cultured Aspergillus versicolor fungus from deep-sea sediments resulted in the isolation of four xanthones, eight anthraquinones and five alkaloids, including a new xanthone, oxisterigmatocystin D (1) and a new alkaloid, aspergillusine A (13). High resolution electron impact mass spectrometry (HR-EI-MS), FT-IR spectroscopy, and NMR techniques were used to elucidate the structures of these compounds, and the absolute configuration of compound 1 was established by its NMR features and coupling constant...
March 2018: Chinese Journal of Natural Medicines
Dennis Seyi Arokoyo, Ibukun Peter Oyeyipo, Stefan Simon Du Plessis, Yapo Guillaume Aboua
Background: Oxidative stress is frequently identified as a key element in the pathophysiology of many complications of diabetes mellitus, including reproductive complications. The antioxidant potential of medicinal plants have been suggested for therapeutic focus of diseases in recent reports. Objective: To investigate the effect of Basella alba (Ba) aqueous leave extract on diabetes-induced oxidative stress. Materials and Methods: Forty male Wistar rats (8-10 weeks) were randomly divided into four groups ( n = 10) and treated as follows; Control (C + Ns) and Diabetic (D + Ns) animals received oral normal saline 0...
January 2018: Pharmacognosy Research
Semkaleng Mpai, Rosemary du Preez, Yasmina Sultanbawa, Dharini Sivakumar
Current study was initiated to identify the phytochemicals and the nutritional profile of eleven Kei-apple fruit accessions. Accession FH29 showed the highest level (492.45 mg 100 g-1 fresh weight) of total phenolic content, higher than the referral fruit, blueberry. Pyrogallol was identified as the predominant phenolic compound in all accessions. Accession FH 29 showed the highest (49.75 µmol TEAC g-1 fresh weight) antioxidant capacity. Catechin content was higher in accessions; FH151, FH15, FH14, FH29, FH243, FH 239 and FH 231...
July 1, 2018: Food Chemistry
XiaoXuan Guo, XiaoHong Sha, Ebeydulla Rahman, Yong Wang, BaoPing Ji, Wei Wu, Feng Zhou
Millet bran, the by-product of millet processing industry, contains an abundance of phytochemicals, especially polyphenols. The main objective of this study was brewing antioxidant wine from millet bran, as well as the nutritional evaluation. The total polyphenol content of wine samples was determined by Folin-Ciocalteu colorimetric method, and the antioxidant capacity was evaluated by DPPH radical-scavenging capacity, Trolox equivalent antioxidant capacity (TEAC), and ferric reducing antioxidant power (FRAP)...
March 2018: Journal of Food Science and Technology
Jie Xu, Tommy Jönsson, Merichel Plaza, Åsa Håkansson, Martin Antonsson, Irini Lazou Ahrén, Charlotta Turner, Peter Spégel, Yvonne Granfeldt
BACKGROUND: Consumption of polyphenol-rich fruits and vegetables may improve postprandial glucose and insulin levels and hence promote well-being. Previously it has been observed that consumption of bilberry decreases the postprandial insulin demand. The intention with the present study was to compare the impact of different supplements with various polyphenol profiles, on the postprandial glucose and insulin responses in healthy young adults. METHODS: In a randomized, controlled, crossover study the postprandial glycemic and insulin responses were observed in eleven healthy adults after intake of five different beverages containing bilberry (European blueberry), blackcurrant, beetroot, mango and rose hip, respectively; all drinks were enriched with the same composition of fermented oatmeal and probiotics...
February 27, 2018: Nutrition Journal
Y Liu, A D Fly, Z Wang, J E Klaunig
OBJECTIVES: This study aimed to examine the effects of green tea extract on working memory in healthy younger (21 - 29 y) and older (50 - 63 y) women. DESIGN: A single-blind, placebo-controlled, crossover design was used. SETTING: A university laboratory. PARTICIPANTS: Twenty non-smoking Caucasian women were recruited in the younger (10) and older (10) age group. INTERVENTION: Subjects received 5...
2018: Journal of Nutrition, Health & Aging
Adriano Sofo, Inês Moreira, Concetta Eliana Gattullo, Luisa Louro Martins, Miguel Mourato
Zinc (Zn) is a common heavy metal in polluted soils, as it is a widespread pollutant deriving both from natural sources and anthropogenic activities. The antioxidant tolerance/defence mechanisms against oxidative stress induced by subtoxic concentrations of Zn (50 and 150 μM ZnSO4 ) were studied in a widespread edible plant (lettuce; Lactuca sativa L.) and in an important model plant (Arabidopsis thaliana (L.) Heynh.). After 10 days (Arabidopsis) and 20 days (lettuce) of Zn exposure, Zn uptake/translocation was evaluated in both roots and shoots, while indicators of oxidative stress and stress intensity, total antioxidant capacity, and enzymatic and non-enzymatic antioxidative defence were measured in leaves...
February 15, 2018: Journal of Trace Elements in Medicine and Biology
Apinya Rachkeeree, Kuttiga Kantadoung, Ratchuporn Suksathan, Ratchadawan Puangpradab, Paul Alexander Page, Sarana Rose Sommano
The nutritional compositions and phytochemical properties of eight edible flowers of the ginger family (Zingiberaceae) commonly found in Thailand are reported herein. The plant genera investigated were Zingiber (Ginger, Phlai Dam, Krathue), Hedychium (two morphological filament forms), Curcuma (Ao), Etlingera (Torch ginger), Amomum (Chi Kuk), and Alpinia (Galangal), which are eaten fresh or cooked as ingredients in the preparation of many Thai dishes. The proximate compositions (moisture, ash, fiber, protein, fat, and carbohydrate contents) varied among the different genera...
2018: Frontiers in Nutrition
Samanta Thomas-Valdés, Cristina Theoduloz, Felipe Jiménez-Aspee, Alberto Burgos-Edwards, Guillermo Schmeda-Hirschmann
The Chilean white strawberry (Fragaria chiloensis spp. chiloensis f. chiloensis) is a semi-domesticated strawberry with high polyphenol content and antioxidant activity occurring in southern Chile. The aim of this work was to compare the composition and bioactivity of the polyphenol-enriched fruit extract (PEE) before and after simulated gastrointestinal digestion (GID). Results show a decrease by >50% in the total phenolic (TP) content at the end of the GID, compared to the non-digested PEE. A reduction in the antioxidant capacity of the PEEs was observed after GID by means of DPPH, FRAP, TEAC and anion superoxide assays...
March 2018: Food Research International
Gerardo Maria de Araújo Filho, Denise Poltronieri Martins, Angélica Marta Lopes, Beatriz de Jesus Brait, Ana Eliza Romano Furlan, Camila Ive Ferreira Oliveira, Lucia Helena Neves Marques, Dorotéia Rossi Silva Souza, Eduardo Alves de Almeida
OBJECTIVE: The objective was to evaluate the genetic and biochemical profiles associated with oxidative stress (OS) in patients with temporal lobe epilepsy with mesial temporal sclerosis (TLE-MTS) and a healthy control group, and also to verify the possible existence of association between OS markers and psychiatric disorders (PD) in group with TLE-MTS. METHODS: Forty-six patients with refractory TLE-MTS and 112 healthy controls were included. Psychiatric evaluation occurred through Diagnostical and Statistical Manual of Mental Disorders (DSM-5) criteria...
March 2018: Epilepsy & Behavior: E&B
Lorena Franco-Martínez, Silvia Martínez-Subiela, Damian Escribano, Sarah Schlosser, Katharina Nöbauer, Ebrahim Razzazi-Fazeli, Diego Romero, Jose Joaquin Cerón, Asta Tvarijonaviciute
A proteomic and biochemical approach was performed to assess the effects of an induced muscle injury on the haemolymph of bivalve molluscs. For this purpose, Mytilus galloprovincialis were exposed to puncture of adductor muscle for three consecutive days, and their haemolymph proteome was then compared to healthy animals using 2-dimensional electrophoresis (2-DE) to identify proteins that differed significantly in abundance. Those proteins were then subjected to tandem mass spectrometry and 6 proteins, namely myosin, tropomyosin, CuZn superoxide dismutase (SOD), triosephosphate isomerase, EP protein and small heat shock protein were identified...
April 2018: Fish & Shellfish Immunology
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