Rca 60
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Determinação voltamétrica de ricina em mamona usando carbono vítreo e diamante dopado com boro / Voltammetric determination of ricin in castor bean using gassy carbon and boron doped diamond.
Ricin (RCA 60) is an inhibitor of ribosomes protein toxic, of class II, extracted from castor bean endosperm of the seed, consisting of two peptide chains (RCA-A 30 and RCA-B 30) linked by a disulfide bridge covalently formed by the combination of 17 amino acid residues. Its toxicity has been observed in animals, insects and humans, being by inhalation, inge
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/03/2012
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2. Glial cell activity is maintained during prolonged inflammatory challenge in rats
We evaluated the expression of glial fibrillary acidic protein (GFAP), glutamine synthetase (GS), ionized calcium binding adaptor protein-1 (Iba-1), and ferritin in rats after single or repeated lipopolysaccharide (LPS) treatment, which is known to induce endotoxin tolerance and glial activation. Male Wistar rats (200-250 g) received ip injections of LPS (10
Brazilian Journal of Medical and Biological Research. Publicado em: 2012-08
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3. Desenvolvimento de biossensores eletroquímicos baseados em filmes de xiloglucana para detecção de Ricina e Ricinus communis aglutinina. / Development of biosensors based on electrochemical xiloglucana films for detection of Ricin and Ricinus communis agglutinin.
Ricinus communis, conhecida como mamona, apresenta em suas sementes substâncias nocivas a mamíferos, com destaque para as lectinas Ricina (RCA60) e Ricinus communis aglutinina (RCA120). Devido à presença destas substâncias é necessário o uso de tratamentos de destoxificação do farelo de mamona, a fim de viabilizar o seu uso como ração. No entanto,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/12/2011
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4. Síndrome metabólica e fatores de risco relacionados em crianças e adolescentes com excesso de peso na cidade do Natal
Nas últimas décadas, houve grande aumento da prevalência de obesidade, inclusive na faixa etária pediátrica. Com isso, aumentou o número de crianças e adolescentes afetados por síndrome metabólica (SM), diabetes tipo 2 (DM2) e doenças cardiovasculares (DCV), doenças anteriormente consideradas quase exclusivas de adultos. Os objetivos do estudo for
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/06/2011
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5. Utilização de biossensor de eletrodo de ouro modificado para determinação de ricina e ricinus aglutinina em farelo de mamona.
2010
CONGRESSO BRASILEIRO DE MAMONA. Publicado em: 2011
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6. Mosaico do quiabeiro : etiologia, caracterização e diversidade
Okra mosaic disease was frequently observed in the 60s in Brazil, but its importance decreased after the use of the resistant cultivar Santa Cruz 47. It was believed that this disease was caused by a begomovirus, but the etiology was never confirmed. Several okra production fields were visited in central Brazil (Federal District and Goiás state) for evaluat
Publicado em: 2008
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7. Effect of a Brazilian regional basic diet on the prevalence of caries in rats
The aim of the present study was to determine the effect of a regional basic diet (RBD) on the prevalence of caries in the molar teeth of rats of both sexes aged 23 days. The animals were divided into six groups of 10 rats each receiving the following diets for 30 and 60 days after weaning: RBD, a cariogenic diet, and a commercial diet. The prevalence and pe
Brazilian Journal of Medical and Biological Research. Publicado em: 2002-07
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8. Evaluation of Passive Hemagglutination, Solid-Phase Radioimmunoassay, and Immunoelectroosmophoresis for the Detection of Hepatitis B Antigen
Sensitivity and specificity of passive hemagglutination (RCA), solid phase radioimmunoassay (RIA), and immunoelectroosmophoresis (IEOP) were compared under experimental and clinical conditions. In dilution experiments with sera containing hepatitis B antigen (HB Ag) of known subtypes, the sensitivity for an ad subtype serum was RIA (1), RCA (1/2), IEOP (1/25
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9. Rubisco Activase Is Required for Optimal Photosynthesis in the Green Alga Chlamydomonas reinhardtii in a Low-CO2 Atmosphere1
This report describes a Chlamydomonas reinhardtii mutant that lacks Rubisco activase (Rca). Using the BleR (bleomycin resistance) gene as a positive selectable marker for nuclear transformation, an insertional mutagenesis screen was performed to select for cells that required a high-CO2 atmosphere for optimal growth. The DNA flanking the BleR insert of one o
The American Society for Plant Biologists.
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10. Neuroglial response to neuron injury. A study using intraneural injection of ricinus communis agglutinin-60.
The present study has shown the selective destruction of large ventral horn neurons in the lumbosacral cord segments following a single injection of RCA-60 into the sciatic nerve. The neurons appeared to undergo structural alteration beginning 3 days after the RCA application. In the postoperative period extending from 1 to 60 days, degeneration of neurons w
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11. Differential Involvement of the Circadian Clock in the Expression of Genes Required for Ribulose-1,5-Bisphosphate Carboxylase/Oxygenase Synthesis, Assembly, and Activation in Arabidopsis thaliana.
We have investigated the role of the circadian clock in the regulation of expression of genes required for ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) synthesis, assembly, and activation. Circadian oscillations in RCA (the gene encoding Rubisco activase) and RBCS (the gene encoding Rubisco small subunit) mRNA accumulation, with peak abundance o
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12. Visualisation of exercise-induced ischaemia of the right ventricle by thallium-201 single photon emission computed tomography.
OBJECTIVE: Exercise thallium-201 (201T1) single photon emission computed tomography (SPECT) has been used to detect potential ischaemia in the left ventricular myocardium but not in the right ventricle. The purpose of this study was to establish the clinical usefulness of a right ventricular polar map of 201T1 SPECT for visualisation of exercise-induced righ