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Registros recuperados: 54
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Imprime registro no formato completo
Avaliação e seleção de acessos tropicais de milho em solos de baixa fertilidade com limitações em fósforo. Repositório Alice
SANTOS, M.X.; CARVALHO, H.W.L.; LEITE, C.E.P.; ANDRADE, R.V.; VASCONCELLOS, C.A..
1998
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Milho; Melhoramento; Tropical; Fosforo; Deficiencia mineral; Zea mays; Maize; Screening; Mineral deficiency; Phosphorus; Breeding.
Ano: 1998 URL: http://www.alice.cnptia.embrapa.br/handle/doc/480583
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Potencial para "screening" de doenças foliares em milho através da fluorescência da clorofila. Repositório Alice
DURAES, F. O. M.; CASELA, C. R.; OLIVEIRA, A. C. de.
2001
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Milho; Doenca foliar; Fluorescencia; Clorofila; Screening; Zea mays; Maize; Leaf; Disease; Chlorophyll; Fluorescence.
Ano: 2001 URL: http://www.alice.cnptia.embrapa.br/handle/doc/485181
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Seleção de linhagens produtoras de transglutaminase. Repositório Alice
VALADÃO, R. C.; RIBEIRO, S. DA S.; COELHO, R. R. R.; SANTOS, L. O. dos; SILVA, J. P. L. da; DAMASO, M. C. T..
2011
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Transglutaminase; Actinomicetos; Bacilos; Screening.
Ano: 2011 URL: http://www.alice.cnptia.embrapa.br/handle/doc/915277
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Detecção de condições de estresse em plantas e potencial para "screening" em milho através da fluorescência da clorofila. Repositório Alice
DURAES, F. O. M.; OLIVEIRA, A. C.; MAGALHAES, P. C.; MARTINEZ, C.A..
2000
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Milho; Estresse; Ecofisiologia; Screening; Zea mays; Maize; Stress; Ecophysiology.
Ano: 2000 URL: http://www.alice.cnptia.embrapa.br/handle/doc/484141
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Screening de bactérias tolerantes à seca associadas a cactáceas da Caatinga. Repositório Alice
KAVAMURA, V. N.; SANTOS, S. N.; SÁBER, M. L.; SILVA, J. L. da; PARMA, M. M.; DINI-ANDREOTE, F.; MELO, I. S. de.
2011
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Cactacea; Caatinga; Screening; Stress tolerance.
Ano: 2011 URL: http://www.alice.cnptia.embrapa.br/handle/doc/917677
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An alternative method for screening lactic acid bacteria for the production of exopolysaccharides with rapid confirmation. Repositório Alice
PAULO, E. M.; VASCONCELOS, M. P.; OLIVEIRA, I. S.; AFFE, H. M. J.; NASCIMENTO, R. dos S.; MELO, I. S. de; ROQUE, M. R. de A.; ASSIS, S. A. de.
Abstract: The accumulation of exopolysaccharides (EPS) produced by microorganisms occurs in the presence of excess substrate and limiting conditions of elements that are essential to growth, such as nitrogen, phosphorus, sulfur, and magnesium. The presence of EPS produced by bacterial cells contributes to slime colonies formation in solid medium and increased viscosity in liquid medium. This paper proposes an alternative method for screening EPS-producing lactic acid bacteria using solid medium-containing discs of filter paper that are saturated with active cultures. The screening was carried out under different culture conditions varying the type of sugar, pH, and temperature. EPS production was visualized by the presence of mucoid colonies on the discs,...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Triagem; Exopolissacarídeos; Análise de laboratório; Polissacarídeo; Screening; Exopolysaccharides; Lactic acid bacteria.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/handle/doc/963060
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Avaliação da precocidade de emissão da raiz primária em milho e parâmetros de parte aérea para secreening de Al, e, solução nutritiva. Repositório Alice
DURAES, F. O. M.; OLIVEIRA, A. C. de; NEIS, L.; VERGINASSI, A.; BRITTO, D.D. de S..
2001
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Milho; Aluminio; Tolerancia; Screening; Zea mys; Maize; Aluminium; Tolerance.
Ano: 2001 URL: http://www.alice.cnptia.embrapa.br/handle/doc/485132
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Screening preliminar dos contaminantes emergentes encontrados em ETEs da região metropolitana do Recife-PE empregando cromatografia líquida acoplada à espectrometria de massas de alta resolução. Repositório Alice
SILVA, R. F. da; SILVA, P. T. de S. e; SILVA, L. K. A. da; PAIM, A. P.; SILVA, V. L. da.
2011
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Contaminantes emergentes; ETE; Screening; LCMS-IT-TOF; Água contaminada; Água.
Ano: 2011 URL: http://www.alice.cnptia.embrapa.br/handle/doc/915177
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Optimización de un método para la detección de carbamatos y organofosforados en vegetales ABCL
Schosinsky,Karl; Quintana Guzmán,Eugenia María; Ruepert,Clements.
Debido al alto grado de contaminación por plaguicidas de productos agrícolas y al alto costo que implica su detección se consideró importante optimizar el método de escrutinio de inhibición de colinesterasas humanas en presencia de extractos vegetales. Se demostró que las suspensiones de glóbulos rojos y plasma son estables al menos por tres meses si se mantienen entre 4 y 8 °C. El reactivo de color es estable por al menos dos años y medio en refrigeración y los sustratos de ambas colinesterasas son estables congelados al menos por dos años. La mezcla del extracto vegetal y los glóbulos rojos o plasma debe incubarse 90 minutos a 37 °C para determinar los porcentajes de inhibición enzimática. Se determinó que los porcentajes de inhibición superiores a 16%...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Colinesterasa plasmática; Colinesterasa eritrocítica; Plaguicida; Vegetal; Screening; Organofosforados; Carbamatos.
Ano: 2009 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0325-29572009000100003
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Screening de macroprolactina con polietilenglicol: límite de corte ABCL
Fabre,Bibiana Raquel; Boero,Laura Estela; Argibay,Jenny; Benencia,Haydée; Del Río,Alberto.
La prolactina (PRL), de acuerdo a su tamaño molecular, se puede encontrar en circulación como un monómero de 23 kDa (little PRL), un dímero de 45 kDa (big PRL) o como macroprolactina ( big-big PRL o MPRL). La MPRL, en la mayoría de los casos, está formada por una molécula monomérica y una inmunoglobulina G (IgG). La cromatografía por filtración en gel se considera el método patrón para determinar las diferentes formas moleculares. La precipitación con polietilenglicol (PEG) al 25% resulta un método alternativo para realizar el screening de MPRL. El objetivo de este trabajo fue establecer un valor de corte para determinar la presencia de MPRL utilizando PEG y el sistema IRMA DPC para dosar PRL. Se analizaron 172 sueros: 20 muestras con niveles de PRL...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Macroprolactina; Screening; Heterogeneidad molecular.
Ano: 2006 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0325-29572006000100012
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Microscale direct transesterification of microbial biomass with ethanol for screening of microorganisms by its fatty acid content BABT
Sorgatto,Vanessa Ghiggi; Carvalho,Julio Cesar de; Sydney,Eduardo Bittencourt; Medeiros,Adriane Bianchi Pedroni; Vandenberghe,Luciana Porto de Souza; Soccol,Carlos Ricardo.
Abstract We present an improved method of direct transesterification suitable for the quantitative analysis of multiple dry samples for its fatty acid content, using a minimal amount of biomass and reactants. The method features an acid-catalyzed direct alcoholysis of microgram samples of dry biomass; the rationale behind the solvent and reagent proportions chosen is discussed. The method was validated using seven microbial strains with diverse lipid content (Saccharomyces cerevisiae, Saccharomyces boulardii, Candida tropicalis, Haematococcus pluvialis, Chlorella vulgaris, Spirulina platensis and Schizochytrium limacinum), and compared with a macroscale direct transesterification method, and with gravimetric analysis of lipids extracted with solvents. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Microbial oil; Ethanolysis; FAEE; Microscale; Screening.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100401
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Tattoos and transfusion-transmitted disease risk: implications for the screening of blood donors in Brazil BJID
Nishioka,Sérgio de A.; Gyorkos,Theresa W.; MacLean,J. D..
Having a tattoo has been associated with serological evidence of hepatitis B and C viruses, as well as human immunodeficiency virus infections and syphilis; all of these are known to be transmissible by blood transfusion. These associations are of higher magnitude for individuals with nonprofessionally-applied tattoos and with two or more tattoos. Tattoos are common among drug addicts and prisoners, conditions that are also associated with transfusion-transmitted diseases. We examined the implications of these associations for the screening of blood donors in Brazil. Numbers of individuals who would be correctly or unnecessarily deferred from blood donation on the basis of the presence of tattoos, and on their number and type, were calculated for different...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazil; Blood donors; Screening; Tattoos; Transfusion-transmitted diseases.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702002000400004
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Assessment of conventional PCR and real-time PCR compared to the gold standard method for screening Streptococcus agalactiae in pregnant women BJID
Ferreira,Michele Berger; de-Paris,Fernanda; Paiva,Rodrigo Minuto; Nunes,Luciana de Souza.
ABSTRACT Group B Streptococcus is a causative agent of invasive neonatal infections. Maternal colonization by Streptococcus agalactiae is a necessary condition for vertical transmission, with efficient screening of pregnant women playing an essential role in the prevention of neonatal infections. In this study, we aimed to compare the performance of conventional polymerase chain reaction and real-time PCR assays as screening methods for S. agalactiae in pregnant women against the microbiological culture method considered as the gold-standard. A total of 130 samples from pregnant women were analyzed for sensitivity, specificity, positive predictive value, and negative predictive value. Statistical analysis was performed using the SPSS software, version...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Streptococcus agalactiae; Pregnant women; Screening; Conventional PCR; Real-time PCR.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702018000600449
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Transmission of dengue virus from deceased donors to solid organ transplant recipients: case report and literature review BJID
Rosso,Fernando; Pineda,Juan C.; Sanz,Ana M.; Cedano,Jorge A.; Caicedo,Luis A..
ABSTRACT Dengue fever is a vector-transmitted viral infection. Non-vectorial forms of transmission can occur through organ transplantation. We reviewed medical records of donors and recipients with suspected dengue in the first post-transplant week. We used serologic and molecular analysis to confirm the infection. Herein, we describe four cases of dengue virus transmission through solid organ transplantation. The recipients had positive serology and RT-PCR. Infection in donors was detected through serology. All cases presented with fever within the first week after transplantation. There were no fatal cases. After these cases, we implemented dengue screening with NS1 antigen detection in donors during dengue outbreaks, and no new cases were detected. In...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Dengue virus; Transmission; Solid organ transplantation; Screening.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702018000100063
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Unrecognized pediatric and adult family members of children with acute brucellosis BJID
Çiftdoğan,Dilek Yılmaz; Aslan,Selda.
Abstract Background and aim Brucellosis is an infectious, contagious and zoonotic disease that occurs worldwide. The family members of an index case of brucellosis may be especially susceptible, due to sharing the same source of infection and similar risk factors for brucellosis. In this study, we propose to screen pediatric and adult family members of brucellosis index cases for detecting additional unrecognized infected family members. Materials and methods 114 family members of 41 pediatric patients with brucellosis were evaluated. All family members completed a brief questionnaire and were tested by a standard tube agglutination test (STA). Results The majority of family members (n = 96, 84.2%) were children. Among the 114 family members, 42 (36.8%)...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brucellosis; Screening; Unrecognized; Turkey.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702017000500520
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Evaluation of anti-Wnt/β-catenin signaling agents by pGL4-TOP transfected stable cells with a luciferase reporter system BJMBR
Chuang,K.A.; Lieu,C.H.; Tsai,W.J.; Wu,M.H.; Chen,Y.C.; Liao,J.F.; Wang,C.C.; Kuo,Y.C..
Refractory and relapsed leukemia is a major problem during cancer therapy, which is due to the aberrant activation of Wnt/β-catenin signaling pathway. Activation of this pathway is promoted by wingless (Wnt) proteins and induces co-activator β-catenin binding to lymphoid enhancer factor (LEF)/T-cell factor protein (TCF). To provide a convenient system for the screening of anti-Wnt/β-catenin agents, we designed a bi-functional pGL4-TOP reporter plasmid that contained 3X β-catenin/LEF/TCF binding sites and a selectable marker. After transfection and hygromycin B selection, HEK 293-TOP and Jurkat-TOP stable clones were established. The luciferase activity in the stable clone was enhanced by the recombinant Wnt-3A (rWnt-3A; 100-400 ng/mL) and GSK3β inhibitor...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cancer; Plasmids; Reporter assay; Screening; Wnt; Β-catenin.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2010001000003
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Screening of antibacterial extracts from plants native to the Brazilian Amazon Rain Forest and Atlantic Forest BJMBR
Suffredini,I.B.; Sader,H.S.; Gonçalves,A.G.; Reis,A.O.; Gales,A.C.; Varella,A.D.; Younes,R.N..
More than 20% of the world's biodiversity is located in Brazilian forests and only a few plant extracts have been evaluated for potential antibacterial activity. In the present study, 705 organic and aqueous extracts of plants obtained from different Amazon Rain Forest and Atlantic Forest plants were screened for antibacterial activity at 100 µg/ml, using a microdilution broth assay against Staphylococcus aureus, Enterococcus faecalis, Pseudomonas aeruginosa and Escherichia coli. One extract, VO581, was active against S. aureus (minimum inhibitory concentration (MIC) = 140 µg/ml and minimal bactericidal concentration (MBC) = 160 µg/ml, organic extract obtained from stems) and two extracts were active against E. faecalis, SM053 (MIC = 80 µg/ml and MBC = 90...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Plant extract; Antibacterial activity; Screening; Amazon Rain Forest; Atlantic Forest.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000300015
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Interference of propylene glycol with the hole-board test BJMBR
Lourenço da Silva,A.; Elisabetsky,E..
Experimental drugs and/or plant extracts are often dissolved in solvents, including propylene glycol. Nevertheless, there is evidence for psychoactive properties of this alcohol. In this study we found that in the hole-board test 10% propylene glycol did not modify the head-dipping behavior. However, 30% propylene glycol induced an increase in the number of head-dips (46.92 ± 2.37 compared to 33.83 ± 4.39, P<0.05, ANOVA/Student-Newman-Keuls), an effect comparable to that obtained with 0.5 mg/kg diazepam (from 33.83 ± 4.39 to 54 ± 3.8, P<0.01, ANOVA/Student-Newman-Keuls). These results demonstrate that 30% propylene glycol has significant anxiolytic effects in this model and therefore cannot be used as an innocuous solvent.
Tipo: Info:eu-repo/semantics/other Palavras-chave: Screening; Anxiolytic drugs; Propylene glycol; Diazepam; Solvents; Hole-board.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000400016
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The contribution of Latin American research to HPV epidemiology and natural history knowledge BJMBR
Sichero,L.; Picconi,M.A.; Villa,L.L..
Our aim was to review the major contributions of studies conducted in different Latin American (LA) countries to the field of human papillomavirus (HPV) epidemiology, natural history, risk of disease, and prevention strategies, mainly in the uterine cervix. Although cytological screening is established in several countries in LA, incidence and mortality rates from cervical cancer (CC) are still extremely high. Finally, data from large cohort studies conducted in LA countries provided seminal data to propose primary and secondary prevention modalities: the HPV vaccine has been introduced in the national immunization programs of several LA countries and multiple screening experiences using HPV testing are under evaluation in the region.
Tipo: Info:eu-repo/semantics/article Palavras-chave: HPV; Latin America; Immunization; Cervical cancer; Natural history; Screening.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000200302
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Obesity inversely correlates with prostate-specific antigen levels in a population with normal screening results of prostate cancer in northwestern China BJMBR
Zhang,J.; Ma,M.; Nan,X.; Sheng,B..
Serum prostate-specific antigen (PSA) is a diagnostic biomarker of prostate cancer and is possibly associated with obesity. This study aimed to explore the relationships between obesity indicators [body mass index (BMI) and waist circumference (WC)] with PSA in Chinese men. A cross-sectional study of men aged 30-85 years undergoing prostate cancer screening was conducted from August 2008 to July 2013 in Xi'an, China. Data were obtained from clinical reports, condition was recorded based on self-report including demographics, weight, height, and WC (>90 cm=obese). Fasting blood glucose (FBG) and prostate volume (PV) were assessed clinically. Patients were grouped by BMI (normal=22.9, overweight=23-27.4, obese≥27.5 kg/m2). PSA parameters of density...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Prostate-specific antigen; Body mass index; Obesity; Prostate cancer; Screening.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000800704
Registros recuperados: 54
Primeira ... 123 ... Última
 

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