Search Results - "BARBOSA, A. J"

A Route from Darkness to Light: Emergence and Evolution of Luciferase Activity in AMP-CoA-Ligases Inferred from a Mealworm Luciferase-like Enzyme by Viviani, V. R, Prado, R. A, Neves, D. R, Kato, D, Barbosa, J. A

“…The origin of luciferases and of bioluminescence is enigmatic. In beetles, luciferases seem to have evolved from AMP-CoA-ligases. How the new oxygenase…”
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Density of ghrelin-producing cells is higher in the gastric mucosa of morbidly obese patients by Maksud, Fabiana A N, Alves, Jairo S, Diniz, Marco T C, Barbosa, Alfredo J A

“…BackgroundGhrelin is a peptide mainly secreted by gastric mucosa and has been implicated in the regulation of eating behavior and weight balance. Obesity and…”
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Chronic Gastritis and Bone Mineral Density in Women by Kakehasi, Adriana M, Rodrigues, Carolinne B, Carvalho, Ariane V, Barbosa, Alfredo J. A

“…We conducted a cross-sectional study of bone mineral density in women with Helicobacter pylori gastritis or autoimmune gastritis. Eighty-five patients were…”
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The Kazal-type inhibitors infestins 1 and 4 differ in specificity but are similar in three-dimensional structure by Campos, I. T. N., Souza, T. A. C. B., Torquato, R. J. S., De Marco, R., Tanaka-Azevedo, A. M., Tanaka, A. S., Barbosa, J. A. R. G.

“…Blood coagulation is an important process in haemostasis, and disorders of blood coagulation can lead to an increased risk of haemorrhage and thrombosis…”
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Structural evolution of luciferase activity in Zophobas mealworm AMP/CoA-ligase (protoluciferase) through site-directed mutagenesis of the luciferin binding site by Prado, R A, Barbosa, J A, Ohmiya, Y, Viviani, V R

“…The structural origin and evolution of bioluminescent activity of beetle luciferases from AMP/CoA ligases remains a mystery. Previously we cloned the…”
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Enhanced Eu3+ Emission in Aqueous Phosphotungstate Colloidal Systems: Stabilization of Polyoxometalate Nanostructures by Barbosa, A. J, Maia, L. J. Q, Montanari, B, Gonçalves, R. R, Messaddeq, Y, Ferreira, R. A. S, Carlos, L. D, Ribeiro, S. J. L

“…Luminescent Eu3+-containing polyphosphate−tungstate aqueous colloidal systems were prepared and studied as a function of the relative polyphosphate−tungstate…”
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A Chemically Defined Approach to the Adsorption of Orange G on Chitosan Particles by Lima, R. R. C., Barbosa, J. A. S., Pereira, M. R., Fonseca, J. L. C.

“…Textile industries produce a large quantity of effluents, which have high concentrations and variety of dyes. These substances, besides their poor aesthetic…”
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Cloning, Overexpression, Purification and Preliminary Characterization of Human Septin 8 by Souza, T. A. C. B., Barbosa, J. A. R. G.

“…Mammalian septins comprise a family of 14 genes that encode GTP-binding proteins involved in important cellular processes such as cytokinesis and exocytosis…”
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The multigene families of actinoporins (part I): Isoforms and genetic structure by Valle, A., Alvarado-Mesén, J., Lanio, M.E., Álvarez, C., Barbosa, J.A.R.G., Pazos, I.F.

“…Actinoporins are basic pore-forming proteins produced by sea anemones, with molecular weight around 20 kDa showing high affinity for sphingomyelin-containing…”
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Preslaughter mortality of broilers in relation to lairage and season in a subtropical climate by Vieira, F. M. C, Silva, I. J. O, Barbosa Filho, J. A. D, Vieira, A. M. C, Broom, D. M

“…The preslaughter handling and transport of broilers are stressful operations that might affect welfare and meat quality and could increase numbers of deaths…”
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Correction to: A Bowman–Birk inhibitor induces apoptosis in human breast adenocarcinoma through mitochondrial impairment and oxidative damage following proteasome 20S inhibition by Mehdad, A, Xavier Reis, G, Souza, AA, Barbosa, JARG, Ventura, MM, de Freitas, SM

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HLA-DR molecules from an antigen-processing mutant cell line are associated with invariant chain peptides by Riberdy, Janice M, Newcomb, John R, Surman, Michael J, Barbosat, James A, Cresswell, Peter

“…The invariant chain, which associates with the major histocompatibility complex (MHC) class II molecules in the endoplasmic reticulum, serves two functions…”
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Mercury as a proxy for volcanic activity during extreme environmental turnover: The Cretaceous–Paleogene transition by Sial, A.N., Lacerda, L.D., Ferreira, V.P., Frei, R., Marquillas, R.A., Barbosa, J.A., Gaucher, C., Windmöller, C.C., Pereira, N.S.

“…The usually low geological background concentrations of Hg makes this trace element suitable for identifying accumulation pulses in sediments that can be…”
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Effects of different periods of gastric ischaemia in the viability of the tissue of body, fundus and antrum region of rabbit stomach by Magalhães, Maria Angélica B, Barbosa, Alfredo J A, Figueiredo, Juliano A, Alberti, Luiz R, Petroianu, Andy

“…Despite the rich vascular arcade of the stomach, gastric ischemia represents an important medical challenge and can be the consequence of obstructive or…”
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The multigene families of actinoporins (part II): Strategies for heterologous production in Escherichia coli by Valle, A., Hervis, Y.P., Socas, L.B.P., Canet, L., Faheem, M., Barbosa, J.A.R.G., Lanio, M.E., Pazos, I.F.

“…The sea anemone venom contains pore-forming proteins (PFP) named actinoporins, due to their purification from organisms belonging to Actiniaria order and its…”
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Letter to “Mapping of Ghrelin Gene Expression and Cell Distribution in the Stomach of Morbidly Obese Patients—a Possible Guide for Efficient Sleeve Gastrectomy Construction” Obesity Surgery (2012) 22:617–622. doi:10.1007/s11695-011-0585-9 by Maksud, Fabiana A. N., Barbosa, Alfredo J. A.

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High-resolution Hg chemostratigraphy: A contribution to the distinction of chemical fingerprints of the Deccan volcanism and Cretaceous–Paleogene Boundary impact event by Sial, A.N., Chen, Jiubin, Lacerda, L.D., Peralta, S., Gaucher, C., Frei, R., Cirilli, S., Ferreira, V.P., Marquillas, R.A., Barbosa, J.A., Pereira, N.S., Belmino, I.K.C.

“…There is a renewed interest in volcanism as the major trigger for dramatic climatic changes at the Cretaceous–Paleogene transition (KTB), which were…”
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Sequential Application of Herbicides Alone and in Mixture With and Without Foliar Fertilizer after Pruning of Cassava Plants by COSTA, N.V., SALVALAGGIO, A.C., FERREIRA, S.D., BARBOSA, J.A., GIBBERT, A.M.

“…A new cycle of growth begins after pruning of cassava, and weed control is necessary. Thus, this study aimed to evaluate the selectivity and efficiency of…”
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Ghrelin plasma levels, gastric ghrelin cell density and bone mineral density in women with rheumatoid arthritis by Maksud, F A N, Kakehasi, A M, Guimarães, M F B R, Machado, C J, Barbosa, A J A

“…Generalized bone loss can be considered an extra-articular manifestation of rheumatoid arthritis (RA) that may lead to the occurrence of fractures, resulting…”
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HELICOBACTER PYLORI CHRONIC GASTRITIS ON PATIENTS WITH PREMALIGNANT CONDITIONS: OLGA AND OLGIM EVALUATION AND SERUM BIOMARKERS PERFORMANCE by Coelho, Maria Clara Freitas, Ribeiro, Henrique Gomes, Gomes, Celio Geraldo de Oliveira, Marinho, Frederico Passos, Barbosa, Alfredo J A, Coelho, Luiz Gonzaga Vaz

“…H. pylori chronic atrophic gastritis is a premalignant lesion, and its staging, according to OLGA and OLGIM systems aims to identify patients at increased risk…”
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