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Pesquisa : B01.650.940.800.575.912.250.044.555 [Categoria DeCS]
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[PMID]:28946322
[Au] Autor:Faraji M; Noorbakhsh R; Shafieyan H; Ramezani M
[Ad] Endereço:Faculty of Food Industry and Agriculture, Department of Food science & Technology, Standard Research Institute (SRI), Karaj, P.O. Box 31745-139, Iran. Electronic address: mohammadfaraji2010@gmail.com.
[Ti] Título:Determination of acetamiprid, imidacloprid, and spirotetramat and their relevant metabolites in pistachio using modified QuEChERS combined with liquid chromatography-tandem mass spectrometry.
[So] Source:Food Chem;240:634-641, 2018 Feb 01.
[Is] ISSN:0308-8146
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A QuEChERS based methodology was developed for the simultaneous identification and quantification of acetamiprid, imidacloprid, and spirotetramat and their relevant metabolites in pistachio by liquid chromatography-tandem mass spectrometry for the first time. First, sample extraction was done with MeCN:citrate buffer:NaHCO followed by phase separation with the addition of MgSO :NaCl. The supernatant was then cleaned by a primary-secondary amine (PSA), GCB, and MgSO . The proposed method provides a linearity in the range of 5-200µgL , and the linear regression coefficients were higher than 0.99. LOD and LOQ were obtained to be 2 and 5µgkg for the studied insecticides, respectively, with the exception of imidacloprid-olefin (5 and 10µgkg ). Acceptable recoveries (91-110%) were obtained for all the analytes with good intra- and inter-precisions (0.4≥RSD ≤11.0). The method was then used for the pistachio samples collected from a field trial to estimate the maximum residue limits (MRLs) in next step.
[Mh] Termos MeSH primário: Pistacia
[Mh] Termos MeSH secundário: Compostos Aza
Cromatografia Líquida de Alta Pressão
Neonicotinoides
Nitrocompostos
Compostos de Espiro
Espectrometria de Massas em Tandem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Aza Compounds); 0 (Neonicotinoids); 0 (Nitro Compounds); 0 (Spiro Compounds); 3BN7M937V8 (imidacloprid); 4G7KR034OX (spirotetramat); 5HL5N372P0 (acetamiprid)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171128
[Lr] Data última revisão:
171128
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170927
[St] Status:MEDLINE


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[PMID]:29049303
[Au] Autor:Assaf-Balut C; García de la Torre N; Durán A; Fuentes M; Bordiú E; Del Valle L; Familiar C; Ortolá A; Jiménez I; Herraiz MA; Izquierdo N; Perez N; Torrejon MJ; Ortega MI; Illana FJ; Runkle I; de Miguel MP; Montañez C; Barabash A; Cuesta M; Rubio MA; Calle-Pascual AL
[Ad] Endereço:Endocrinology and Nutrition Department, Hospital Clínico Universitario San Carlos and Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain.
[Ti] Título:A Mediterranean diet with additional extra virgin olive oil and pistachios reduces the incidence of gestational diabetes mellitus (GDM): A randomized controlled trial: The St. Carlos GDM prevention study.
[So] Source:PLoS One;12(10):e0185873, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Gestational diabetes mellitus (GDM) prevalence is increasing and becoming a major public health concern. Whether a Mediterranean diet can help prevent GDM in unselected pregnant women has yet to be studied. METHODS: We conducted a prospective, randomized controlled trial to evaluate the incidence of GDM with two different dietary models. All consecutive normoglycemic (<92 mg/dL) pregnant women at 8-12 gestational weeks (GW) were assigned to Intervention Group (IG, n = 500): MedDiet supplemented with extra virgin olive oil (EVOO) and pistachios; or Control Group (CG, n = 500): standard diet with limited fat intake. Primary outcome was to assess the effect of the intervention on GDM incidence at 24-28 GW. Gestational weight gain (GWG), pregnancy-induced hypertension, caesarean section (CS), preterm delivery, perineal trauma, small and large for gestational age (SGA and LGA) and admissions to neonatal intensive care unit were also assessed. Analysis was by intention-to-treat. RESULTS: A total of 874 women completed the study (440/434, CG/IG). According to nutritional questionnaires and biomarker analysis, women in the IG had a good adherence to the intervention. 177/874 women were diagnosed with GDM, 103/440 (23.4%) in CG and 74/434(17.1%) in IG, p = 0.012. The crude relative risk (RR) for GDM was 0.73 (95% CI: 0.56-0.95; p = 0.020) IG vs CG and persisted after adjusted multivariable analysis, 0.75(95% CI: 0.57-0.98; p = 0.039). IG had also significantly reduced rates of insulin-treated GDM, prematurity, GWG at 24-28 and 36-38 GW, emergency CS, perineal trauma, and SGA and LGA newborns (all p<0.05). CONCLUSIONS: An early nutritional intervention with a supplemented MedDiet reduces the incidence of GDM and improves several maternal and neonatal outcomes.
[Mh] Termos MeSH primário: Diabetes Gestacional/dietoterapia
Dieta Mediterrânea
Azeite de Oliva/administração & dosagem
Pistacia
[Mh] Termos MeSH secundário: Adulto
Diabetes Gestacional/epidemiologia
Feminino
Seres Humanos
Incidência
Recém-Nascido
Estilo de Vida
Gravidez
Resultado da Gravidez
Estudos Prospectivos
[Pt] Tipo de publicação:JOURNAL ARTICLE; RANDOMIZED CONTROLLED TRIAL
[Nm] Nome de substância:
0 (Olive Oil)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171107
[Lr] Data última revisão:
171107
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171020
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0185873


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[PMID]:28851456
[Au] Autor:Moein E; Hajimehdipoor H; Toliyat T; Choopani R; Hamzeloo-Moghadam M
[Ad] Endereço:Department of Traditional Pharmacy, School of Traditional Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
[Ti] Título:Formulation of an aloe-based product according to Iranian traditional medicine and development of its analysis method.
[So] Source:Daru;25(1):19, 2017 Aug 29.
[Is] ISSN:2008-2231
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Currently, people are more interested to traditional medicine. The traditional formulations should be converted to modern drug delivery systems to be more acceptable for the patients. In the present investigation, a poly herbal medicine "Ayarij-e-Faiqra" (AF) based on Iranian traditional medicine (ITM) has been formulated and its quality control parameters have been developed. METHODS: The main ingredients of AF including barks of Cinnamomum zeylanicum Blume and Cinnamomum cassia J. Presl, the rhizomes of Nardostachys jatamansi DC., the fruits of Piper cubeba L.f., the flowers of Rosa damascena Herrm., the oleo gum resin of Pistacia terebinthus L. and Aloe spp. dried juice were powdered and used for preparing seven tablet formulations of the herbal mixture. Flowability of the different formulated powders was examined and the best formulations were selected (F6&F7). The tablets were prepared from the selected formulations compared according to the physical characteristics and finally, F7 was selected and coated. Physicochemical characters of core and coated AF tablets were determined and the HPLC method for quantitation of aloin as a marker of tablets was selected and verified according to selectivity, linearity, precision, recovery, LOD and LOQ. RESULTS: The results showed that core and coated AF tablets were in agreement with USP requirements for herbal drugs. They had acceptable appearance, disintegration time, friability, hardness, dissolution behavior, weight variation and content uniformity. The amount of aloin in tablets was found 123.1 mg/tab. The HPLC method for aloin determination in AF tablets was verified according to selectivity, linearity (5-500 µg/ml, r :0.9999), precision (RSD: 1.62%), recovery (108.0%), LOD & LOQ (0.0053 & 0.0161 µg/ml). CONCLUSIONS: The formulated tablets could be a good substitute for powder and capsules of AF in ITM clinics with a feasible and precise method for its quality control. Ayarij-e-Faiqra formulation.
[Mh] Termos MeSH primário: Aloe
Medicina Tradicional
Fitoterapia
[Mh] Termos MeSH secundário: Cinnamomum
Composição de Medicamentos
Emodina/análogos & derivados
Emodina/análise
Emodina/uso terapêutico
Flores
Frutas
Medicina Herbária/métodos
Irã (Geográfico)
Medicina Tradicional/métodos
Nardostachys
Fitoterapia/métodos
Piper
Pistacia
Casca de Planta
Rizoma
Rosa
Comprimidos/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Tablets); KA46RNI6HN (Emodin); W41H6S09F4 (alloin)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171010
[Lr] Data última revisão:
171010
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170831
[St] Status:MEDLINE
[do] DOI:10.1186/s40199-017-0185-x


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[PMID]:28764033
[Au] Autor:Zannella C; Carucci F; Aversano R; Prohaska T; Vingiani S; Carputo D; Adamo P
[Ad] Endereço:Department of Agricultural Sciences, University of Naples Federico II, 80055, Via Università 100, Portici, Italy.
[Ti] Título:Genetic and geochemical signatures to prevent frauds and counterfeit of high-quality asparagus and pistachio.
[So] Source:Food Chem;237:545-552, 2017 Dec 15.
[Is] ISSN:0308-8146
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A fingerprinting strategy based on genetic (simple sequence repeat) and geochemical (multielement and Sr/ Sr ratio) analysis was tested to prove the geographical origin of high-quality Italian products "White Asparagus from Bassano del Grappa" and "Green Pistachio from Bronte". Genetic analysis generated many polymorphic alleles and different specific amplified fragments in both agriproducts. In addition, a core set of markers was defined. According to variability within production soils and products, potential candidate elements linking asparagus (Zn, P, Cr, Mg, B, K) and pistachio (Mn, P, Cr, Mg, Ti, B, K, Sc, S) to the production areas were identified. The Sr isotopic signature was an excellent marker when Italian asparagus was compared with literature data for Hungarian and Peruvian asparagus. This work reinforces the use of Sr isotope composition in the soil bioavailable fraction, as assessed by 1mol/L NH NO , to distinguish white asparagus and pistachio originating from different geographical areas.
[Mh] Termos MeSH primário: Asparagus (Planta)/genética
Pistacia/genética
[Mh] Termos MeSH secundário: Fraude
Solo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Soil)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170803
[St] Status:MEDLINE


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[PMID]:28648297
[Au] Autor:Lambertini E; Barouei J; Schaffner DW; Danyluk MD; Harris LJ
[Ad] Endereço:Department of Food Science and Technology, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA.
[Ti] Título:Modeling the risk of salmonellosis from consumption of pistachios produced and consumed in the United States.
[So] Source:Food Microbiol;67:85-96, 2017 Oct.
[Is] ISSN:1095-9998
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The risk of salmonellosis from consumption of pistachios produced and consumed in the U.S. was assessed through quantitative microbial risk assessment. Data on Salmonella prevalence and concentration on pistachios, nut crop volume, storage times and temperatures during processing and handling, and reductions during storage or from roasting were derived from laboratory experiments, published literature, and industry expert opinion. Uncertainty was analyzed via what-if scenarios for Salmonella prevalence, concentration, storage reduction, treatment variability, portion of crop treated, and increased consumption. The estimated U.S. incidence of salmonellosis when 100% of pistachios were exposed to a 4 ± 0 log reduction treatment averaged 1.4 cases per billion servings, or <1 case/year, without considering Salmonella decline during storage. Including Salmonella decline during storage reduced the salmonellosis estimates approximately 10-fold. The predicted arithmetic mean number of cases associated with individual 500,000-kg storage silos, contaminated at the highest observed levels, ranged from 5 to 530 when the product was consumed untreated, but was reduced to below 1 case per silo when a 4 ± 0 log reduction treatment was applied. Assuming a uniform 4-log reduction treatment is applied to 100% of the crop and there is no decline of Salmonella during storage, the assessment indicates the following: 10-fold increases in either Salmonella prevalence or concentration, 2-fold increases in both prevalence and concentration, or consumption of >0.05% of untreated product volume yield an arithmetic mean risk of >1 case/year.
[Mh] Termos MeSH primário: Contaminação de Alimentos/análise
Pistacia/microbiologia
Infecções por Salmonella/microbiologia
Sementes/microbiologia
[Mh] Termos MeSH secundário: Manipulação de Alimentos
Microbiologia de Alimentos
Seres Humanos
Temperatura Ambiente
Estados Unidos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170822
[Lr] Data última revisão:
170822
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170627
[St] Status:MEDLINE


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[PMID]:28647516
[Au] Autor:Taghizadeh SF; Davarynejad G; Asili J; Nemati SH; Rezaee R; Goumenou M; Tsatsakis AM; Karimi G
[Ad] Endereço:Department of Horticulture and Landscape Engineering, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran.
[Ti] Título:Health risk assessment of heavy metals via dietary intake of five pistachio (Pistacia vera L.) cultivars collected from different geographical sites of Iran.
[So] Source:Food Chem Toxicol;107(Pt A):99-107, 2017 Sep.
[Is] ISSN:1873-6351
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Pistachio is an important horticultural product and Iran is considered as a main pistachio producing country. Assessment of heavy metals in this export fruit is crucial for protecting public health against toxic heavy metals. The concentration of selected heavy metals in soil, water and five pistachio cultivars from four geographical regions of Iran were measured. Although none of the elements were detected in water irrigation, infield metal content in the soil had good correlation with that of pistachio. The highest amounts of Al, As, Co, Ni and Se were reported in samples collected from Sarakhs, Iran. Considering both cultivar and region effects on selected heavy metals concentration, Kaleghoochi cultivar from Sarakhs site showed the highest amount of Al, As, Ni and Se. The maximum concentration of Hg was found in Akbari cultivar collected from Damghan. In the Akbari and the Ahmad aghaei cultivars collected from Sarakhs and Damghan cultivation zones, respectively, the highest amount of Co were observed. Based on our results, the HI value for the consumers of Iranian pistachio was 0.066. It seems that the levels of heavy metals in these pistachio samples pose no risk to consumers.
[Mh] Termos MeSH primário: Contaminação de Alimentos/análise
Metais Pesados/análise
Pistacia/química
Sementes/química
[Mh] Termos MeSH secundário: Irã (Geográfico)
Pistacia/classificação
Medição de Risco
Sementes/classificação
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Metals, Heavy)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170829
[Lr] Data última revisão:
170829
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170626
[St] Status:MEDLINE


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[PMID]:28531554
[Au] Autor:Siahmoshteh F; Siciliano I; Banani H; Hamidi-Esfahani Z; Razzaghi-Abyaneh M; Gullino ML; Spadaro D
[Ad] Endereço:Department of Food Science and Technology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran.
[Ti] Título:Efficacy of Bacillus subtilis and Bacillus amyloliquefaciens in the control of Aspergillus parasiticus growth and aflatoxins production on pistachio.
[So] Source:Int J Food Microbiol;254:47-53, 2017 Aug 02.
[Is] ISSN:1879-3460
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Pistachio (Pistacia vera) is an important nut for its economic, nutritional and health aspects but it can be contaminated by aflatoxigenic fungi in the field and during storage. Biological control could be considered as an alternative to chemical treatment. In this study, we evaluated the antifungal and anti-mycotoxigenic capability of two Bacillus spp. both in vitro and on pistachio kernels. In in vitro conditions, both strains were able to reduce the mycelial growth and they were able to degrade the four aflatoxins during the first three days after inoculation. AFG and AFG were rapidly degraded within two days of incubation with the bacterial strains. No aflatoxin was found in the bacterial cell walls, permitting exclusion of mycotoxin adsorption and hypothesis of an in vitro biodegradation as a mode of action. The cultivar of pistachio most susceptible to fungal colonization was 'Ahmad-Aghaei', selected among four main Iranian cultivars. A. parasiticus was able to grow and produce aflatoxins on pistachios, but at longer inoculation periods, a natural decrease of aflatoxins was registered. Both strains were able to reduce the fungal incidence and number of spores on pistachio with a stronger effect during the first 5dpi. The effect on aflatoxin content in vivo was less pronounced than in vitro, with a maximum effect at 8dpi. At longer times, there was a contrasting effect due to the lower activity of Bacillus spp. in stationary phase and higher growth of Aspergillus species. This consideration could explain the lack of aflatoxin reduction at 12dpi. Both bacterial strains showed good antifungal activity and aflatoxin reduction in in vitro conditions and on pistachio kernels. Altogether, these results indicate that Bacillus species could be considered as potential biocontrol agents to combat toxigenic fungal growth and subsequent aflatoxin contamination of nuts and agricultural crops in practice.
[Mh] Termos MeSH primário: Aflatoxinas/análise
Aspergillus/crescimento & desenvolvimento
Bacillus amyloliquefaciens/metabolismo
Bacillus subtilis/metabolismo
Agentes de Controle Biológico/metabolismo
Micotoxinas/análise
Nozes/microbiologia
Pistacia/microbiologia
[Mh] Termos MeSH secundário: Antifúngicos/metabolismo
Aspergillus/metabolismo
Irã (Geográfico)
Micélio/crescimento & desenvolvimento
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Aflatoxins); 0 (Antifungal Agents); 0 (Biological Control Agents); 0 (Mycotoxins)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171031
[Lr] Data última revisão:
171031
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170523
[St] Status:MEDLINE


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[PMID]:28415478
[Au] Autor:Noman M; Sanginario A; Jagadale P; Demarchi D; Tagliaferro A
[Ad] Endereço:Faculty of Materials for Energy Storage and Conversion, US-Pakistan Center for Advanced Studies in Energy, University of Engineering and Technology, Peshawar, Pakistan. Electronic address: muhammad.noman@uetpeshawar.edu.pk.
[Ti] Título:Comparison of unusual carbon-based working electrodes for electrochemiluminescence sensors.
[So] Source:Mater Sci Eng C Mater Biol Appl;75:402-407, 2017 Jun 01.
[Is] ISSN:1873-0191
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:In this work, unconventional carbon-based materials were investigated for use in electrochemiluminescence (ECL) working electrodes. Precursors such as bamboo, pistachio shells, kevlar fibers and camphor were differently treated and used as working electrodes in ECL experiments. After a proper process they were assembled as electrodes and tested in an electrochemical cell. Comparison among them and with a commercial glassy carbon electrode (GCE) shows a very good response for all of them thus demonstrating their potential use as disposable low-cost electrodes for early detection electrochemical analysis.
[Mh] Termos MeSH primário: Carbono/química
Técnicas Eletroquímicas/métodos
Medições Luminescentes/métodos
[Mh] Termos MeSH secundário: Técnicas Eletroquímicas/instrumentação
Eletrodos
Medições Luminescentes/instrumentação
Pistacia/química
Polímeros/química
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Kevlar Aramid fibers); 0 (Polymers); 7440-44-0 (Carbon)
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170731
[Lr] Data última revisão:
170731
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170419
[St] Status:MEDLINE


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[PMID]:28338348
[Au] Autor:Saidi SA; Ncir M; Chaaben R; Jamoussi K; van Pelt J; Elfeki A
[Ad] Endereço:a Department of Life Sciences , Laboratory of Animal Ecophysiology, University of Sfax , Sfax , Tunisia.
[Ti] Título:Liver injury following small intestinal ischemia reperfusion in rats is attenuated by Pistacia lentiscus oil: antioxidant and anti-inflammatory effects.
[So] Source:Arch Physiol Biochem;123(4):199-205, 2017 Oct.
[Is] ISSN:1744-4160
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:CONTEXT: Intestinal ischemia-reperfusion (IIR) not only leads to severe intestine damage but also induced subsequent destruction of remote organs. OBJECTIVE: We investigated the protective effect of Pistascia lentiscus L. (Anacardiaceae) oil on IIR. MATERIALS AND METHODS: Wistar rats were divided into three groups: sham, intestinal IR and P. lentiscus pretreatment (n = 18 each). In the pretreatment group, oil was administered 1 h before induction of warm ischemia. RESULTS: IIR led to severe liver damage manifested as a significant (p < .05) increase of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels. Pistacia lentiscus oil decreased the visible intestinal damage, as well as a significant decrease in serum AST and ALT levels. In addition, Pistacia lentiscus reduce liver injury, as evidenced by the decrease in liver tissue myeloperoxidase activity and lipoperoxidation (MDA) level. CONCLUSION: Pistascia lentiscus attenuates liver injury induced by IIR, attributable to the antioxidant and anti-inflammatory effect.
[Mh] Termos MeSH primário: Anti-Inflamatórios/farmacologia
Antioxidantes/farmacologia
Intestino Delgado/patologia
Isquemia/complicações
Hepatopatias/tratamento farmacológico
Pistacia/química
Óleos Vegetais/farmacologia
[Mh] Termos MeSH secundário: Alanina Transaminase/metabolismo
Animais
Aspartato Aminotransferases/metabolismo
Hepatopatias/etiologia
Hepatopatias/metabolismo
Masculino
Malondialdeído/metabolismo
Estresse Oxidativo/efeitos dos fármacos
Ratos
Ratos Wistar
Superóxido Dismutase/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Inflammatory Agents); 0 (Antioxidants); 0 (Plant Oils); 4Y8F71G49Q (Malondialdehyde); EC 1.15.1.1 (Superoxide Dismutase); EC 2.6.1.1 (Aspartate Aminotransferases); EC 2.6.1.2 (Alanine Transaminase)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170912
[Lr] Data última revisão:
170912
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170325
[St] Status:MEDLINE
[do] DOI:10.1080/13813455.2017.1302961


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[PMID]:28245729
[Au] Autor:Ben Ahmed Z; Yousfi M; Viaene J; Dejaegher B; Demeyer K; Mangelings D; Vander Heyden Y
[Ad] Endereço:a Laboratory of Fundamental Science , University Amar Telidji , Laghouat , Algeria.
[Ti] Título:Seasonal, gender and regional variations in total phenolic, flavonoid, and condensed tannins contents and in antioxidant properties from Pistacia atlantica ssp. leaves.
[So] Source:Pharm Biol;55(1):1185-1194, 2017 Dec.
[Is] ISSN:1744-5116
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:CONTEXT: The widespread use of Pistacia atlantica Desf. ssp. (Anacardiaceae) in traditional medicine can be partly attributed to the content of its secondary metabolites, in particular, the phenolic compounds. OBJECTIVE: The effects of harvest period, growing region and gender on the phenolic compounds, flavonoids and condensed tannins contents were studied, as well as on the antioxidant activities of P. atlantica leaves in order to provide a scientific basis for optimal collection. MATERIALS AND METHODS: Leaves were collected monthly from April to October 2010 in two Algerian sites. The powdered leaves were used for preparing the ethyl acetate extract. Contents of total phenolics (TPC), flavonoids (FC) and condensed tannins (CTC) were determined spectrophotometrically. Antioxidant activity was evaluated through radical scavenging activity (RSA) of 2,2-diphenyl-1-picrylhydrazyl (250 µM) and the reducing power capacity (RPC) determination by K Fe(CN) (1%). RESULTS: The TPC was found to vary from 79 ± 13 to 259 ± 8 mg gallic acid equivalents/g of dry weight (DW) during the study period. The RSA and RPC varied between 262 ± 18 and 675 ± 21 mg Ascorbic Acid Equivalent (AAE)/g DW, and from 259 ± 16 to 983 ± 20 mg AAE/g DW, respectively. A seasonal pattern was observed consisting of a decrease in TPC content and RPC from spring to autumn. The FC, CTC and RSA did not show a seasonal pattern. DISCUSSION AND CONCLUSION: Our findings showed that secondary metabolite content and antioxidant activities of P. atlantica leaves were more influenced by harvest time and growing region than by gender.
[Mh] Termos MeSH primário: Antioxidantes/análise
Flavonoides/análise
Fenóis/análise
Pistacia
Extratos Vegetais/análise
Estações do Ano
Taninos/análise
[Mh] Termos MeSH secundário: Folhas de Planta
Fatores Sexuais
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antioxidants); 0 (Flavonoids); 0 (Phenols); 0 (Plant Extracts); 0 (Tannins)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:170313
[Lr] Data última revisão:
170313
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170302
[St] Status:MEDLINE
[do] DOI:10.1080/13880209.2017.1291690



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