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| Registros recuperados: 183 | |
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| Moraes,G.V.; Azevedo,J.R.; Carneiro,T.C.; Cavalieri,F.L.B.; Mataveli,M.; Rossi,R.M.; Santos,T.C.. |
| The effects of selenium (Se) in Jersey cows' diet on the aspiration of oocytes and production of embryos in vitro were studied. Groups with five Jersey cows received 3.2mg or 9.6mg Se daily, provided in the feed concentrate. Six follicular aspirations were carried out every 15 days, using only the last 5. The oocytes were classified, and standard procedures were carried out for maturation, fertilization and cultivation. The total number of oocytes (35.11±2.65 vs 23.10±2.16) and degree 1 oocytes (11.61±2.65 vs 4.75±0.97) were higher in the group that received 9.6mg Se and the quantity of naked oocytes (3.23±0.87 vs 6.22±1.18) was lower in this group. The aspirated oocytes from the cows treated with 9.6mg Se/day resulted in higher (P<0.05) embryo... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cattle dairy; Antioxidant; Glutathione peroxidase; In vitro fertilization; Oocyte quality. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000400001 |
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| Araujo,Luciana Oliveira de; Nogueira,Carlos Eduardo Wayne; Pazinato,Fernanda Maria; Frey Junior,Friedrich; Paixão,Silvano Costa; Souza,Letícia da Silva; Curcio,Bruna da Rosa. |
| ABSTRACT: The aim of this study was to evaluate the effects of Allopurinol in foals born from mares with placentitis. Twenty foals were assigned into two groups: Healthy foals (n=10), born from healthy mares and Placentitis foals (n=10), born from mares with placentitis. Five foals from each group were randomly assigned to a treatment or control group. Treatment groups received Allopurinol (40mg kg-1 orally six hours after birth). Blood samples were collected for estimation of hematological variables and serum concentration of calcium, chloride, creatinine, phosphorus, glucose, lactate and magnesium. Placentitis foals presented leukopenia and neutropenia when compared with Healthy foals, at birth. The white blood cell (WBC) count was lower in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Neonatology; Antioxidant; Therapeutic; Biochemical; Hematology.. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000601119 |
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| Lima,Denise Simim; Duarte,Nathália Barroso Almeida; Barreto,Débora Luiza Costa; Oliveira,Geane Pereira de; Takahashi,Jacqueline Aparecida; Fabrini,Sabrina Pinheiro; Sande,Denise. |
| ABSTRACT: The waste in the fruit production chain, including the juice and pulp industries, produces large quantities of leftover husks, seeds and bagasse. This volume of waste generates huge environmental and economic impact. The objective of this research was to determine the potential of using residues from passion fruit (Passiflora edulis) and apple (Malus domestica) varieties in the production of functional flours. Passion fruit flour showed greater reduction of DPPH (EC50%: 50.4μg/mL) radicals, showing antioxidant potential, as well as a more efficient inhibition of Staphylococcus aureus (71.3±1.2μg/mL), with a modest; however efficient, inhibition of acetylcholinesterase (10%). All Apple flours were good antioxidants and the fuji apple flour stood... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acetylcholinesterase; Agroindustrial residues; Antioxidant; Natural preservative. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000900754 |
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| GARCIA,CHARLENE S.C.; MENTI,CAROLINE; LAMBERT,ANA PAULA F.; BARCELLOS,THIAGO; MOURA,SIDNEI; CALLONI,CAROLINE; BRANCO,CÁTIA S.; SALVADOR,MIRIAN; ROESCH-ELY,MARIANA; HENRIQUES,JOÃO A.P.. |
| ABSTRACT Salvia officinalis (Lamiaceae) has been used in south of Brazil as a diary homemade, in food condiment and tea-beverage used for the treatment of several disorders. The objective of this study was to characterize chemical compounds in the hydroalcoholic (ExtHS) and aqueous (ExtAS) extract from Salvia officinalis (L.) by gas chromatography-mass spectrometry (GC-MS) and by high-resolution electrospray ionization mass spectrometry (ESI-QTOF MS/MS), evaluate in vitro ability to scavenge the free radical 2,2-diphenyl-1-picrylhydrazyl (DPPH•) and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS•+), catalase (CAT-like) and superoxide dismutase (SOD-like) activity, moreover cytotoxic by MTT assay, alterations on cell morphology by giemsa and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antioxidant; Apoptosis; Cancer; Chemical compounds; Salvia officinalis (L. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000100281 |
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| Sunlight is part of our everyday life and most people accept it as beneficial to our health. With the advance of our knowledge in cutaneous photochemistry, photobiology and photomedicine over the past four decades, the terrestrial solar radiation has become a concern of dermatologists and is considered to be a major damaging environmental factor for our skin. Most photobiological effects (e.g., sunburn, suntanning, local and systemic immunosuppression, photoaging or dermatoheliosis, skin cancer and precancer, etc.) are attributed to ultraviolet radiation (UVR) and more particularly to UVB radiation (290-320 nm). UVA radiation (320-400 nm) also plays an important role in the induction of erythema by the photosensitized generation of reactive oxygen species... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Sunburn; Antioxidant; DNA photodamage; Reactive oxygen species; UV radiation. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000500002 |
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| ARAÚJO,Karuane Saturnino da Silva; SANTOS JÚNIOR,Joaquim Francisco dos; SATO,Marcello Otake; FINCO,Fernanda Dias Bartolomeu Abadio; SOARES,Ilsamar Mendes; BARBOSA,Robson dos Santos; ALVIM,Tarso da Costa; ASCÊNCIO,Sérgio Donizeti; MARIANO,Sandra Maria Botelho. |
| ABSTRACTThe composition of propolis depends on time, vegetation and the location of the collection area. The objective of this study was to determine the physicochemical characteristics, the concentration of phenol compounds and the antioxidant capacity of propolis of native stingless bees (Meliponinae)and Apis from the State of Tocantins. Extraction with 80% ethanol (v/v) was performed in order to obtain the extracts. Parameters examined were: propolis mass loss by desiccation at 105 ºC, ashes, wax concentration and pH. Furthermore, the propolis antioxidant activity was measured, as well as the total concentration of phenol compounds. The extracts were also analyzed by high performance liquid chromatography. The total concentration of phenol compounds... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Propolis; Antioxidant; Phenol compounds. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672016000100061 |
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| Costa Marques,Thiago H; Santos De Melo,Cassio H; Fonseca De Carvalho,Rusbene B; Costa,Luciana M; De Souza,Alexandre A; David,Jorge M; De Lima David,Juceni P; De Freitas,Rivelilson M. |
| This study describes the isolation and identification of apigenin-7-O-ghicopyranoside, a flavonoid isolated from the flowers of Bellis perennis L., Asteraceae, an species with a broad spectrum of biological activities. The in vitro antioxidant activity and the inhibition of the enzyme acetylcholinesterase were evaluated. The flavonoid showed strong in vitro antioxidant potential, because of the capacity of removal of hydroxyl radicals and nitric oxide, and also prevented the formation of thiobarbituric acid-reactive substances. These parameters were inhibited at the highest concentration of ApG at rates of 77.7%, 72% and 73.4%, respectively, in addition to inhibiting acetylcholinesterase, suggesting potential use in the treatment of neurodegenerative... |
| Tipo: Journal article |
Palavras-chave: Acetylcholinesterase; Antioxidant; Bellis perennis; Flavonoid. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602013000300002 |
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| URQUIAGA,INES; LEIGHTON,FEDERICO. |
| In recent years there has been a remarkable increment in scientific articles dealing with oxidative stress. Several reasons justify this trend: knowledge about reactive oxygen and nitrogen species metabolism; definition of markers for oxidative damage; evidence linking chronic diseases and oxidative stress; identification of flavonoids and other dietary polyphenol antioxidants present in plant foods as bioactive molecules; and data supporting the idea that health benefits associated with fruits, vegetables and red wine in the diet are probably linked to the polyphenol antioxidants they contain.In this review we examine some of the evidence linking chronic diseases and oxidative stress, the distribution and basic structure of plant polyphenol antioxidants,... |
| Tipo: Journal article |
Palavras-chave: Oxidative stress; Antioxidant; Plant polyphenol; Flavonoid; Chronic diseases; Diet. |
| Ano: 2000 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602000000200004 |
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| Lima, Clarissa Sampaio de Oliveira; Andrade, Albericio Pereira de; Magalhães, André Luiz Rodrigues; Almeida, Omer Cavalcanti de; Guido, Sebastião Inocêncio; Valença, Roberta de Lima. |
| The objective of this study was to evaluate the plasma lipid profile and plasma fatty acids of dairy cows receiving diets supplemented with annatto. A total of 32 Holstein cows (550 kg), distributed in a completely randomized design, were allocated to individual stalls and submitted to following treatments: C0 = no annatto; C4 = inclusion of annatto at 4 g kg-1 dry matter (DM) of diet (0.07 g bixin kg-1 diet); C5 = inclusion of annatto at 5 g kg-1 DM of diet (0.09 g bixin kg-1 diet); and C7 = inclusion of annatto at 7 g kg-1 DM of diet (0.12 g bixin kg-1 diet). Blood samples were collected via epigastric vein puncture, centrifuged, and frozen for subsequent analysis. The results indicate that the inclusion (p > 0.05) of annatto does not decrease the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antioxidant; Bixin; Cholesterol; Linoleic acid; Polyunsaturated fatty acids. |
| Ano: 2020 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/47651 |
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| Kumar,Rakesh; Arora,Rohit; Mahajan,Jyoti; Mahey,Sonia; Arora,Saroj. |
| ABSTRACT Oxidative stress, being the main cause of most of the human diseases, has always been the highlight of research worldwide. This stress can be overcome by administration of natural polyphenols. The Acacia catechu Willd. has many refrences available in Ayurveda as important disease curative plant. Its leaves are investigated for ameliorating oxidative stress in present work. Leaves of A. catechu were extracted with 80% methanol to get methanol extract (AME). It was assessed for antioxidant activity using DPPH, ABTS, CUPRAC, ferric ion reducing, superoxide scavenging and peroxyl radical scavenging assays. DNA protective activity was also investigated using plasmid nicking assay. Further, antiproliferative activity was determined using MTT assay in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acacia catechu; Antioxidant; Antiproliferative; UHPLC; MTT.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100303 |
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| Kumar,Rakesh; Arora,Rohit; Mahajan,Jyoti; Mahey,Sonia; Arora,Saroj. |
| ABSTRACT Oxidative stress, being the main cause of most of the human diseases, has always been the highlight of research worldwide. This stress can be overcome by administration of natural polyphenols. The Acacia catechu Willd. has many refrences available in Ayurveda as important disease curative plant. Its leaves are investigated for ameliorating oxidative stress in present work. Leaves of A. catechu were extracted with 80% methanol to get methanol extract (AME). It was assessed for antioxidant activity using DPPH, ABTS, CUPRAC, ferric ion reducing, superoxide scavenging and peroxyl radical scavenging assays. DNA protective activity was also investigated using plasmid nicking assay. Further, antiproliferative activity was determined using MTT assay in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acacia catechu; Antioxidant; Antiproliferative; UHPLC; MTT. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100316 |
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| Antunes,Marina C; Cuquel,Francine L; Zawadneak,Maria AC; Mogor,Átila F; Resende,Juliano TV. |
| Maintaining plants in the field for two consecutive crop cycles is one of the latest techniques used by strawberry growers to reduce production costs. The goal of this research was to evaluate the postharvest fruit quality of six strawberry cultivars produced for two consecutive seasons with the same plants. They were planted from May to July 2010 under low-tunnel and fruits were evaluated in two growing seasons (season 1= January, February, and March 2011 and season 2= August, September, and October 2011), totaling three harvests of each cultivar in each year season. Fruits were picked up randomly among 500 plants of each cultivar, organized into five replications of five fruits and kept for three days before analysis under refrigeration (average... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fragariax ananassa; Sensorial analysis; Antioxidant; Minerals; Functional food; C vitamin. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362014000200168 |
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| Nejad,Khojasteh Hoseiny; Sarkaki,Alireza; Dianat,Mahin; Farbood,Yaghoob; Badavi,Mohammad; Gharib-Naseri,Mohammad Kazem. |
| ABSTRACT Cerebral ischemia commonly occurs when the blood flow to the entire brain or some part of the brain is disrupted. Global cerebral ischemia attenuates the nucleus tractus solitaries (NTS) EEG rhythm, increases the free radicals production and brain inflammation. Ellagic acid (EA) has antioxidative and anti-inflammatory effects against neural damages. The aim of this study was to evaluate the role of ellagic acid on EEG power in the global cerebral ischemia.Rats were divided into four groups: SO (sham) received normal saline, EA+SO, I/R (normal saline + ischemia/reperfusion), and EA + I/R. EA (100 mg/kg, dissolved in normal saline) or normal saline was administered orally (gavage) for 10 days. Animal underwent to 20 minutes of ischemia followed by... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ellagic acid; EEG; Antioxidant; Cerebral ischemia/reperfusion; Rat. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100446 |
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| Magnani,Marciane; Castro-Gomez,Raul Jorge Hernan; Mori,Mateus Prates; Kuasne,Hellen; Gregório,Emerson Pereira; Libos Jr,Farid; Cólus,Ilce Mara de Syllos. |
| Carboxymethyl-glucan (CM-G) is a soluble derivative from Saccharomyces cerevisiae (1 → 3)(1 → 6)-β-D-glucan. The protective efficiency of CM-G against DNA damage in cells from patients with advanced prostate cancer (PCa), and undergoing Androgen Deprivation Therapy (ADT), was evaluated. DNA damage scores were obtained by the comet assay, both before and after treatment with CM-G. The reduction in DNA damage, ranging from 18% to 87%, with an average of 59%, was not related to the increased number of leukocytes in peripheral blood. The results demonstrate for the first time the protective effect of CM-G against DNA damage in patients with advanced PCa. Among smokers, three presented the highest reduction in DNA damage after treatment with CM-G. There was no... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antioxidant; Β-D-glucan; Carboxymethyl-glucan; Prostate cancer. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000100023 |
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| Cetik,Songul; Ayhanci,Adnan; Sahinturk,Varol. |
| Possible protective effects of carvacrol (Car) against cyclophosphamide (CP)-induced cardiotoxicity was examined in this study. Experimental groups of the rats were randomly divided into 13 groups,each including seven animals: Group 1 (control) treated with saline; groups 2, 3, and 4 treated with 50, 100, or 150 mg/kg of CP, respectively; group 5 treated with 0.5 mL olive oil; groups 6 and 7 treated with 5.0 and 10 mg/kg of Car, respectively; groups 8, 9, or 10 treated with respective CP plus 5.0 mg/kg of Car; and groups 11, 12, or 13 treated with respective CP plus 10 mg/kg of Car. Serum alanine transaminase (ALT),aspartat transaminase (AST), lactate dehydrogenase (LDH), malondialdehyde (MDA),creatine kinase-MB (CK-MB), total oxidant state (TOS),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cyclophosphamide; Oxidative stress; Cardiotoxicity; Carvacrol; Antioxidant; Rat. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000400569 |
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| Can,Senanur; Canbek,Mediha. |
| Abstract Possible protective effects of geraniol, known as antioxidant properties, were analyzed biochemically and histologically on experimental long-term renal ischemia/reperfusion I/R injury in rats. This study used 3-4 months old male Wistar albino rats and were divided into 4 groups (n = 7) by random selection: Group I (Sham Group), Group II (I/R+SF), Group III (I/R+50 mg/kg geraniol), and Group IV (I/R+100 mg/kg geraniol). A right nephrectomy was performed in all groups under anesthesia. Groups I and II were inoculated with SF (1 ml/kg) and Groups III and IV were inoculated with 50 mg/kg and 100 mg/kg of geraniol, injected intraperitoneally. For Groups II, III, and IV, I/R durations were determined to be 60 mins ischemia and 24 hours reperfusion. At... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ischemia; Reperfusion; Geraniol; Antioxidant; Protective effects; Rat. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100314 |
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| Registros recuperados: 183 | |
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