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Search Results: 1 - 10 of 560206 matches for " Maria T S S B; "
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Safety Properties and Probiotic Potential of Bacillus subtilis KATMIRA1933 and Bacillus amyloliquefaciens B-1895  [PDF]
Ammar AlGburi, Anna Volski, Carla Cugini, Emily M. Walsh, Vladimir A. Chistyakov, Maria S. Mazanko, Anzhelica B. Bren, Leon M. T. Dicks, Michael L. Chikindas
Advances in Microbiology (AiM) , 2016, DOI: 10.4236/aim.2016.66043
Abstract: This study reports on the safety and putative probiotic properties of Bacillus amyloliquefaciens B-1895 and Bacillus subtilis KATMIRA1933. According to the bacterial reverse mutation (Ames) test, cell-free supernatants of B. amyloliquefaciens B-1895 and B. subtilis KATMIRA1933 were not mutagenic. The two strains co-aggregated with Escherichia coli and Pseudomonas aeruginosa, and cell-free supernatants inhibited the growth of Streptococcus intermedius and Porphyromonas gingivalis. Endospores of B. amyloliquefaciens B-1895 and B. subtilis KATMIRA1933 were tolerant to 0.3% (w/v) bile salts and survived incubation for 4 h in MRS broth at pH 2.0 to 3.0. The ability of the two strains to produce antimicrobial compounds potentiates their application in health care formulations, personal care products, food and animal feed.
Fontes e distribui??o de matéria organica sedimentar no complexo estuarino-lagunar de Mundaú-Manguaba/AL, utilizando esterois e alcoóis como indicadores
Ribeiro, Maria Antonia T. S. B;Knoppers, Bastiaan A;Carreira, Renato S;
Química Nova , 2011, DOI: 10.1590/S0100-40422011000700002
Abstract: the origin of the sedimentary organic matter in the mundaú-manguaba estuarine system was evaluated through the distribution and composition of sterols, alcohols and ancillary data. the muddy sediments of the lagoons are enriched in organic matter, derived from a mixture of autochthonous and allochthonous inputs. mundaú exhibited moderate contamination by sewage, with coprostanol concentration as high as 4.4 μg g-1. the channels are characterized by sand and organic matter-poor sediments. the sediments from some rivers in the drainage basin accumulated organic matter derived only from terrestrial vegetation. stanol/sterol ratios evidenced the preferential diagenesis of the autochthonous fraction of organic matter.
Degrada??o fotoeletroquímica de corantes dispersos em efluente têxtil utilizando fotoanodos de Ti/TiO2
Brunelli, Tamara F. T.;Guaraldo, Thaís T.;Paschoal, Fabiana M. M.;Zanoni, Maria Valnice B.;
Química Nova , 2009, DOI: 10.1590/S0100-40422009000100013
Abstract: the degradation of disperses dyes in aqueous solution and in effluents from textile industry has been investigated by photoelectrocatalytic oxidation using nanoporous thin films electrodes of ti/tio2. samples of dispersil black dye and dispersil blue dye after 300 min of photoelectrolyzed at applied potential of +1.0 v and uv irradiation exhibited 100% of discoloration and 90% and 64% reduction total organic carbon, respectively. the proposed method was applied with success in a textile industry effluent containing residues of these dyes, which after 300 min of treatment leads to reduction of 60% of cod and 64% removal of toc.
Morphological and Physiological Responses of Morning Glory (Ipomoea lacunosa L.) Grown in a Lead- and Chelate-Amended Soil
Murty S. Kambhampati,Gregorio B. Begonia,Maria F. T. Begonia,Yolanda Bufford
International Journal of Environmental Research and Public Health , 2005, DOI: 10.3390/ijerph2005020014
Abstract: Lead (Pb) is one of the most toxic metals in the environment and may cause drastic morphological and physiological deformities in Ipomoea lacunosa. The goal of this research was to evaluate some morphological and physiological responses of morning glory grown on a Pb- and chelate-amended soil. Soil samples were analyzed, at Mississippi State University Soil Laboratory, for physico-chemical parameters, such as soil texture (73% sand, 23% silt, 4.4% clay), organic matter (6.24 ± 0.60%), and pH (7.95 ± 0.03), to establish soil conditions at the beginning of the experiments. Five EDTA (ethylenediaminetetraacetic acid) concentrations (0, 0.1, 0.5, 1, 5mM) and four lead (0, 500, 1000, 2000mg/L) treatments were arranged in factorial in a Randomized Complete Block (RCB) design with five replications. Duncan’s multiple comparison range test showed that the mean difference values of stomatal density were significant between 500 and 1000mg/L Pb and between 1000 and 2000mg/L Pb. Two way ANOVA (at 1% level) indicated that interaction between Pb and EDTA had a significant effect on the stomatal density and photosynthetic rates, and at 5% level Pb had a significant effect on chlorophyll concentrations. Lowest concentrations of chlorophyll were recorded at 2000mg/L Pb and 5mM EDTA and exhibited a decreasing trend specifically in the ranges of 1000 and 2000mg/L Pb and 1.0 and 5.0mM EDTA. Duncan’s multiple comparison range test confirmed that mean differences between the control treatment vs. 2000mg/L Pb, and 500mg/L vs. 2000mg/L Pb were significantly different at p>0.05. There was a decrease in leaf net photosynthetic rate with increasing concentrations of Pb from 0 to 2000mg/L. In conclusion, I. lacunosa L. plants were grown to maturity in all treatments with no significant and/or apparent morphological disorders, which indicated that this species might be highly tolerant even at 2000mg/L Pb concentrations in the soil.
Altera??es da haste hipofisária e suas implica??es clínicas
Drummond, Juliana B.;Martins, José Carlos T.;Soares, Maria Marta S.;Dias, Eduardo Pimentel;
Arquivos Brasileiros de Endocrinologia & Metabologia , 2003, DOI: 10.1590/S0004-27302003000400018
Abstract: magnetic resonance imaging (mri) of the pituitary stalk has revealed certain abnormalities with significant clinical relevance. in order to correctly appreciate them, one must be aware of the embryology and anatomy of the pituitary-hypothalamic axis and the criteria that define a normal mri. pituitary stalk thickening is frequently related to diabetes insipidus and this finding requires further evaluation, especially in children and adolescents. a truncated, thin or absent stalk can be associated with growth hormone deficiency and contribute to the prediction of the severity and the pattern of the hypopituitarism. at last, mutations of different transcription factors controlling pituitary development may be associated with characteristic pituitary-hypothalamic mri abnormalities, underscoring its utility in the assessment of congenital hypopituitarism.
Absence of mutations in PAX8, NKX2.5, and TSH receptor genes in patients with thyroid dysgenesis
Brust, Ester S.;Beltrao, Cristine B.;Chammas, Maria C.;Watanabe, Tomoco;Sapienza, Marcelo T.;Marui, Suemi;
Arquivos Brasileiros de Endocrinologia & Metabologia , 2012, DOI: 10.1590/S0004-27302012000300004
Abstract: objectives: to precisely classify the various forms of td, and then to screen for mutations in transcription factor genes active in thyroid development. subjects and methods: patients underwent ultrasound, thyroid scan, and serum thyroglobulin measurement to accurately diagnose the form of td. dna was extracted from peripheral leukocytes. the pax8, and nkx2.5 genes were evaluated in all patients, and tsh receptor (tshr) gene in those with hypoplasia. results: in 27 nonconsanguineous patients with td, 13 were diagnosed with ectopia, 11 with hypoplasia, and 3 with athyreosis. no mutations were detected in any of the genes studied. conclusion: sporadic cases of td are likely to be caused by epigenetic factors, rather than mutations in thyroid transcription factors or genes involved in thyroid development.
Serological and genetic diversity amongst Salmonella strains isolated in a salami processing line
Ribeiro, Vinicius B.;Andrigheto, Cristiano;Bersot, Luciano S.;Barcellos, Vinicius;Reis, Eliana F.;Destro, Maria T.;
Brazilian Journal of Microbiology , 2007, DOI: 10.1590/S1517-83822007000100036
Abstract: salmonella is one of the most important agents of foodborne disease in brazil and in other countries, with meat and meat products being identified as important vehicles of salmonelosis. a total of 54 salmonella strains isolated from a commercial salami processing line were first serotyped and then their antibiotic resistance and macro restriction profiles were determined. 11.1% of the strains showed resistance to 3 or more antibiotics with profile ampcstxte being the most frequent. pfge generated 9 and 12 profiles with enzymes xbai and spei, respectively. it was observed that different serotypes of salmonella could be found in the different steps of the processing line. the genetic profile of the strains had low relationship indicating the genetic diversity of the tested strains.
A retrospective evaluation of a score system adopted by the Ministry of Health, Brazil in the diagnosis of pulmonary tuberculosis in childhood: a case control study
Sant'Anna, Clemax Couto;Orfaliais, Cláudia T. S.;March, Maria de Fátima B. Pombo;
Revista do Instituto de Medicina Tropical de S?o Paulo , 2003, DOI: 10.1590/S0036-46652003000200010
Abstract: based on a retrospective case-control study we evaluated the score system adopted by the ministry of health of brazil (ministério da saúde - ms), to diagnose pulmonary tuberculosis (ptb) in childhood. this system is independent of bacteriological or histopathological data to define a very likely (> or = 40 points), possible (30-35 points) or unlikely (< or = 25 points) diagnosis of tuberculosis. records of hospitalized non-infected hiv children at the instituto de puericultura e pediatria martag?o gesteira of federal university of rio de janeiro (ippmg-ufrj), were reviewed. patients were adjusted for age and divided in two different groups: 45 subjects in the case group (culture-positive) [mean of age = 10.64 mo; sd 9.66]; and 96 in the control group (culture-negative and clinic criteria that dismissed the disease) [mean of age = 11.79 mo.; sd 11.31]. among the variables analyzed, the radiological status had the greater impact into the diagnosis (or = 25.39), followed by exposure to adult with tuberculosis (or = 10.67), tuberculin skin test >10mm (or = 8.23). the best cut-off point to the diagnosis of ptb was 30 points, where the score system was more accurate, with sensitivity of 88.9% and specificity of 86.5%.
Altera es da haste hipofisária e suas implica es clínicas
Drummond Juliana B.,Martins José Carlos T.,Soares Maria Marta S.,Dias Eduardo Pimentel
Arquivos Brasileiros de Endocrinologia & Metabologia , 2003,
Abstract: O estudo da haste hipofisária através da ressonancia magnética (RM) tem possibilitado a identifica o de certas altera es de imagem que se correlacionam clinicamente com diversos distúrbios endócrinos. O conhecimento da embriologia e da anatomia da regi o hipotálamo-hipofisária, assim como a defini o dos critérios de normalidade à RM s o fundamentais para uma melhor compreens o e caracteriza o das altera es da haste hipofisária. O espessamento (ou alargamento) é comumente associado ao diabetes insipidus (DI) e o seu achado requer, principalmente em crian as e adolescentes, a pesquisa de uma causa etiológica de base. O afilamento, a interrup o abrupta e a ausência da haste hipofisária est o associados à deficiência congênita de GH, denotando tais achados quadros clínicos por vezes distintos. Por fim, muta es em diferentes fatores de transcri o envolvidos na organogênese hipofisária est o associadas a altera es na RM, tornando-a uma importante ferramenta na investiga o do hipopituitarismo de causa genética.
Estudio de Campo de una Vacuna B.C.G. Liofilizada Field Study of a Freeze-Dried B.C.G. Vaccine
Ivana Azzini B,Raquel Carrasco T,Maria de la Fuente H,Ximena Ferrer S G
Revista chilena de pediatría , 1985,
Abstract:
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