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https://www.readbyqxmd.com/read/28344091/determination-of-structural-and-thermodynamic-parameters-of-bovine-%C3%AE-trypsin-isoform-in-aqueous-organic-media
#1
Dayanne Pinho Rosa, Evaldo Vitor Pereira, Antonio Victor Baioco Vasconcelos, Maria Aparecida Cicilini, André Romero da Silva, Caroline Dutra Lacerda, Jamil Silvano de Oliveira, Marcelo Matos Santoro, Juliana Barbosa Coitinho, Alexandre Martins Costa Santos
The α-trypsin isoform is a globular protein that belongs to serine-protease family and has a polypeptide chain of 223 amino acid residues, six disulfide bridges and two domains with similar structures. The effects of aqueous-organic solvent (ethanol) in different concentration on the α-trypsin structure have been investigated by spectroscopic techniques and thermodynamic data analysis. The results from spectroscopic measurements, including far-UV Circular Dichroism, UV-vis absorption spectroscopy, intrinsic tryptophan fluorescence and dynamic light scattering (DLS) suggest the formation of partially folded states, instead of aggregate states, at high ethanol concentration (>60% v/v ethanol), with little loss of secondary structure, but with significant tertiary structure changes...
March 23, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28343961/protein-depletion-using-the-arabinose-promoter-in-xanthomonas-citri-subsp-citri
#2
Lilian A Lacerda, Lucia B Cavalca, Paula M M Martins, José S Govone, Maurício Bacci, Henrique Ferreira
Xanthomonas citri subsp. citri (X. citri) is a plant pathogen and the etiological agent of citrus canker, a severe disease that affects all the commercially important citrus varieties, and has worldwide distribution. Citrus canker cannot be healed, and the best method known to control the spread of X. citri in the orchards is the eradication of symptomatic and asymptomatic plants in the field. However, in the state of São Paulo, Brazil, the main orange producing area in the world, control is evolving to an integrated management system (IMS) in which growers have to use less susceptible plants, windshields to prevent bacterial spread out and sprays of cupric bactericidal formulations...
March 23, 2017: Plasmid
https://www.readbyqxmd.com/read/28330129/the-recombinant-pea-defensin-drr230a-is-active-against-impacting-soybean-and-cotton-pathogenic-fungi-from-the-genera-fusarium-colletotrichum-and-phakopsora
#3
Ariane Ferreira Lacerda, Rafael Perseghini Del Sarto, Marilia Santos Silva, Erico Augusto Rosas de Vasconcelos, Roberta Ramos Coelho, Vanessa Olinto Dos Santos, Claudia Vieira Godoy, Claudine Dinali Santos Seixas, Maria Cristina Mattar da Silva, Maria Fatima Grossi-de-Sa
Plant defensins are antifungal peptides produced by the innate immune system plants developed to circumvent fungal infection. The defensin Drr230a, originally isolated from pea, has been previously shown to be active against various entomopathogenic and phytopathogenic fungi. In the present study, the activity of a yeast-expressed recombinant Drr230a protein (rDrr230a) was tested against impacting soybean and cotton fungi. First, the gene was subcloned into the yeast expression vector pPICZαA and expressed in Pichia pastoris...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28329027/prevalence-and-predictors-for-compensated-advanced-chronic-liver-disease-c-acld-in-patients-with-chronic-hepatitis-delta-virus-hdv-infection
#4
Ingrid Couto, Marilu Victoria, Valdiléa G Veloso, Lorena Rodrigues, Beatriz Grinsztejn, Marcus Lacerda, Flamir Victoria, Hugo Perazzo
OBJECTIVE: The study aimed to evaluate the prevalence and predictor factors for compensated advanced chronic liver disease (c-ACLD) in patients with hepatitis Delta virus (HDV) infection. METHODS: This cross-sectional study included consecutive HDV-infected patients defined by positive anti-HDV. Patients with hepatitis C coinfection, liver transplantation or presence of conditions that limit liver (LSM) or spleen stiffness measurement (SSM) were excluded. Blood tests, abdominal ultrasound, SSM and LSM by transient elastography (FibroScan®) were performed at the same day...
2017: PloS One
https://www.readbyqxmd.com/read/28328530/imaging-methods-for-bone-mass-evaluation-during-childhood-and-adolescence-an-update
#5
Isabela Leite Pezzuti, Adriana Maria Kakehasi, Maria Tereza Filgueiras, Juliana Albano de Guimarães, Isabela Alves Campos de Lacerda, Ivani Novato Silva
The objective of the work was to prepare an update on imaging methods for bone evaluation during childhood and adolescence. The text was based on original and review articles on imaging methods for clinical evaluation of bone mass in children and adolescents up to 20 years old. They were selected from BIREME and PUBMED by means of the following keywords: bone density; osteoporosis/diagnosis; densitometry; tomography; ultrasonography; magnetic resonance imaging; and radiogrammetry and published in Portuguese or English, in the last 10 years (2006-2016)...
March 22, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28327877/anxiety-stress-and-depression-in-family-members-of-patients-with-heart-failure
#6
Marianna Sobral Lacerda, Melissa Alves Cirelli, Alba Lúcia Bottura Leite de Barros, Juliana de Lima Lopes
OBJECTIVE: Identifying the level of anxiety, stress and depression symptoms in family members of patients with heart failure; identifying the relationship between these feelings with sociodemographic and clinical variables. METHOD: A cross-sectional study carried out with 100 family members. Depression, anxiety, and stress were evaluated by the Beck Depression and Anxiety Inventories and the Perceived Stress Scale - 10. The relationship between feelings and variables was performed through the t-test, Mann-Whitney or Kruskal-Wallis...
March 20, 2017: Revista da Escola de Enfermagem da U S P
https://www.readbyqxmd.com/read/28323068/vitamin-d-receptor-expression-and-hepcidin-levels-in-the-protection-or-severity-of-leprosy-a-systematic-review
#7
Ana Laura Grossi de Oliveira, Ana Thereza Chaves, Cristiane Alves Silva Menezes, Nathalia Sernizon Guimarães, Lilian Lacerda Bueno, Ricardo Toshio Fujiwara, Manoel Otávio da Costa Rocha
Leprosy is a chronic infectious disease whose disequilibrium in the host's genetic, immunological and clinical mechanisms lead to distinct manifestations defining the type of immunological response. This review focuses its attention on the influence of the Vitamin D Receptor and hepcidin expressions that can suggest the protection or severity of leprosy.
March 16, 2017: Microbes and Infection
https://www.readbyqxmd.com/read/28317860/gene-delivery-to-nile-tilapia-cells-for-transgenesis-and-the-role-of-pi3k-c2%C3%AE-in-angiogenesis
#8
Fernanda Maria Policarpo Tonelli, Samyra Maria Dos Santos Nassif Lacerda, Marcela Santos Procópio, Breno Luiz Sales Lemos, Luiz Renato de França, Rodrigo Ribeiro Resende
Microinjection is commonly performed to achieve fish transgenesis; however, due to difficulties associated with this technique, new strategies are being developed. Here we evaluate the potential of lentiviral particles to genetically modify Nile tilapia cells to achieve transgenesis using three different approaches: spermatogonial stem cell (SSC) genetic modification and transplantation (SC), in vivo transduction of gametes (GT), and fertilised egg transduction (ET). The SC protocol using larvae generates animals with sustained production of modified sperm (80% of animals with 77% maximum sperm fluorescence [MSF]), but is a time-consuming protocol (sexual maturity in Nile tilapia is achieved at 6 months of age)...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28314384/erratum-to-pre-travel-malaria-chemoprophylaxis-counselling-in-a-public-travel-medicine-clinic-in-s%C3%A3-o-paulo-brazil
#9
Tânia do Socorro Souza Chaves, Wuelton Marcelo Monteiro, Jessé Reis Alves, Marcus Lacerda, Marta Heloisa Lopes
No abstract text is available yet for this article.
March 17, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28306552/precise-determination-of-the-heat-delivery-during-in-vivo-magnetic-nanoparticle-hyperthermia-with-infrared-thermography
#10
Harley Rodrigues, Gustavo Capistrano, Francyelli Mello, Nicholas Zufelato, Elisangela Silveira-Lacerda, Andris F Bakuzis
Monitoring noninvasively and in real-time the heat delivery during magnetic nanoparticle hyperthermia is of fundamental importance to predict clinical outcome for cancer treatment. Infrared thermography (IRT) can inform the surface temperature due to three-dimensional heat delivery inside a subcutaneous tumor, an argument that is supported by numerical simulations. However, for precise temperature determination, it is of crucial relevance to use a correct experimental configuration. This work reports a magnetic nanoparticle hyperthermia study (MNH) using a sarcoma 180 murine tumor containing 3...
March 17, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28288644/tollip-gene-variant-is-associated-with-plasmodium-vivax-malaria-in-the-brazilian-amazon
#11
Larissa W Brasil, Laila R A Barbosa, Felipe J de Araujo, Allyson G da Costa, Luan D O da Silva, Suzana K Pinheiro, Anne C G de Almeida, Andrea Kuhn, Sheila Vitor-Silva, Gisely C de Melo, Wuelton M Monteiro, Marcus V G de Lacerda, Rajendranath Ramasawmy
BACKGROUND: Toll-interacting protein is a negative regulator in the TLR signaling cascade, particularly by impeding the TLR2 and, TLR4 pathway. Recently, TOLLIP was shown to regulate human TLR signaling pathways. Two common TOLLIP polymorphisms (rs5743899 and rs3750920) were reported to be influencing IL-6, TNF and IL-10 expression. In this study, TOLLIP variants were investigated to their relation to Plasmodium vivax malaria in the Brazilian Amazon. METHODS: This cohort study was performed in the municipalities of Careiro and, Manaus, in Western Brazilian Amazon...
March 13, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28270152/a-systematic-review-on-malaria-sero-epidemiology-studies-in-the-brazilian-amazon-insights-into-immunological-markers-for-exposure-and-protection
#12
Pedro M Folegatti, André M Siqueira, Wuelton M Monteiro, Marcus Vinícius G Lacerda, Chris J Drakeley, Érika M Braga
BACKGROUND: Considerable success in reducing malaria incidence and mortality has been achieved in Brazil, leading to discussions over the possibility of moving towards elimination. However, more than reporting and counting clinical cases, elimination will require the use of efficient tools and strategies for measuring transmission dynamics and detecting the infectious reservoir as the primary indicators of interest for surveillance and evaluation. Because acquisition and maintenance of anti-malarial antibodies depend on parasite exposure, seroprevalence rates could be used as a reliable tool for assessing malaria endemicity and an adjunct measure for monitoring transmission in a rapid and cost-effective manner...
March 7, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28267092/pediatric-blastic-plasmacytoid-dendritic-cell-neoplasm-how-to-treat
#13
Ana Tomé, Helena Pragosa, Gabriela Caldas, Ana Lacerda, Filomena Pereira
No abstract text is available yet for this article.
March 6, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28259608/busulfan-and-melphalan-versus-carboplatin-etoposide-and-melphalan-as-high-dose-chemotherapy-for-high-risk-neuroblastoma-hr-nbl1-siopen-an-international-randomised-multi-arm-open-label-phase-3-trial
#14
Ruth Ladenstein, Ulrike Pötschger, Andrew D J Pearson, Penelope Brock, Roberto Luksch, Victoria Castel, Isaac Yaniv, Vassilios Papadakis, Geneviève Laureys, Josef Malis, Walentyna Balwierz, Ellen Ruud, Per Kogner, Henrik Schroeder, Ana Forjaz de Lacerda, Maja Beck-Popovic, Pavel Bician, Miklós Garami, Toby Trahair, Adela Canete, Peter F Ambros, Keith Holmes, Mark Gaze, Günter Schreier, Alberto Garaventa, Gilles Vassal, Jean Michon, Dominique Valteau-Couanet
BACKGROUND: High-dose chemotherapy with haemopoietic stem-cell rescue improves event-free survival in patients with high-risk neuroblastoma; however, which regimen has the greatest patient benefit has not been established. We aimed to assess event-free survival after high-dose chemotherapy with busulfan and melphalan compared with carboplatin, etoposide, and melphalan. METHODS: We did an international, randomised, multi-arm, open-label, phase 3 cooperative group clinical trial of patients with high-risk neuroblastoma at 128 institutions in 18 countries that included an open-label randomised arm in which high-dose chemotherapy regimens were compared...
March 1, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28258507/neutron-activation-increases-activity-of-ruthenium-based-complexes-and-induces-cell-death-in-glioma-cells-independent-of-p53-tumor-suppressor-gene
#15
Aline Monezi Montel, Raquel Gouvêa Dos Santos, Pryscila Rodrigues da Costa, Elisângela de Paula Silveira-Lacerda, Alzir Azevedo Batista, Wagner Gouvêa Dos Santos
Novel metal complexes have received great attention in the last decades due to their potential anticancer activity. Notably, ruthenium-based complexes have emerged as good alternative to the currently used platinum-based drugs for cancer therapy, providing less toxicity and side effects to patients. Glioblastoma is an aggressive and invasive type of brain tumor and despite of advances is the field of neurooncology there is no effective treatment until now. Therefore, we sought to investigate the potential antiproliferative activity of phosphine-ruthenium-based complexes on human glioblastoma cell lines...
March 3, 2017: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/28249753/metagenomic-analysis-of-the-microbiome-in-three-different-bioreactor-configurations-applied-to-commercial-laundry-wastewater-treatment
#16
T P Delforno, G V Lacerda, I N Sierra-Garcia, D Y Okada, T Z Macedo, M B A Varesche, V M Oliveira
The taxonomic and functional diversity of three different biological reactors (fluidized bed reactor, FBR; up-flow anaerobic sludge blanket reactor, UASB; and expanded granular sludge bed reactor, EGSB) used for commercial laundry wastewater treatment was investigated using metagenome shotgun sequencing. Metagenomes were sequenced on the Illumina Hiseq platform and were analyzed using MG-RAST, STAMP and PAST software. The EGSB and UASB reactors were more closely related based on taxonomic and functional profiles, likely due to similar granular sludge and procedures adopted to ensure anaerobic conditions...
February 26, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28242421/nondairy-beverage-produced-by-controlled-fermentation-with-potential-probiotic-starter-cultures-of-lactic-acid-bacteria-and-yeast
#17
Ana Luiza Freire, Cintia Lacerda Ramos, Patrícia Nirlane da Costa Souza, Mauro Guilherme Barros Cardoso, Rosane Freitas Schwan
This work aimed to develop a nondairy fermented beverage from a blend of cassava and rice based on Brazilian indigenous beverage cauim using probiotic lactic acid bacteria (LAB) and yeast. The indigenous strains Lactobacillus plantarum CCMA 0743 (from cauim) and Torulaspora delbrueckii CCMA 0235 (from tarubá), and the commercial probiotic, L. acidophilus LAC-04, were used as starter cultures in single and co-cultivations. The bacteria populations were around 8.0 log (CFU/mL) at the end of all fermentations as recommended for probiotic products...
February 21, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28241748/erratum-to-impact-of-oral-hygiene-involving-toothbrushing-versus-chlorhexidine-in-the-prevention-of-ventilator-associated-pneumonia-a-randomized-study
#18
Claudia Fernanda de Lacerda Vidal, Aurora Karla de Lacerda Vidal, José Gildo de Moura Monteiro, Aracele Cavalcanti, Ana Paula da Costa Henriques, Márcia Oliveira, Michele Godoy, Mirella Coutinho, Pollyanna Dutra Sobral, Claudia Ângela Vilela, Bárbara Gomes, Marta Amorim Leandro, Ulisses Montarroyos, Ricardo de Alencar Ximenes, Heloísa Ramos Lacerda
No abstract text is available yet for this article.
February 27, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28241070/stress-self-esteem-and-well-being-among-female-health-professionals-a-randomized-clinical-trial-on-the-impact-of-a-self-care-intervention-mediated-by-the-senses
#19
Eliseth Ribeiro Leão, Daniela Reis Dal Fabbro, Rebeca Barqueiro de Oliveira, Ingrid Ribeiro Dos Santos, Elivane da Silva Victor, Rita Lacerda Aquarone, Cristiane Benvenuto Andrade, Vivian Finotti Ribeiro, Roselaine Coelho de Oliveira, Rosa Friedlander, Daniela Santos Ferreira
BACKGROUND: Stress levels are evident among health professionals. However, there are few studies on sensory-based self-care aimed at stress management, self-esteem and subjective well-being in this group of professionals. OBJECTIVE: To assess the impact of a self-care intervention mediated by the senses on the stress levels, self-esteem and well-being of health professionals in a hospital environment. METHODS: A total of 93 health professionals participated in an unblinded clinical trial, randomized into four groups: 1) control (no intervention); 2) Monosensory-daily body moisturizing (DBM) with odorless cream; 3) Bisensory-DBM with scented cream; 4) Multisensory-DBM with scented cream associated with audiovisual material...
2017: PloS One
https://www.readbyqxmd.com/read/28238825/association-between-obesity-related-biomarkers-and-cognitive-and-motor-development-in-infants
#20
Ana Cristina R Camargos, Vanessa A Mendonça, Katherine S C Oliveira, Camila Alves de Andrade, Hércules Ribeiro Leite, Sueli Ferreira da Fonseca, Erica Leandro Marciano Vieira, Antônio Lúcio Teixeira Júnior, Ana Cristina Rodrigues Lacerda
BACKGROUND: This study aimed to verify the association between obesity-related biomarkers and cognitive and motor development in infants between 6 and 24 months of age. METHODS: A cross-sectional study was conducted with 50 infants and plasma levels of leptin, adiponectin, resistin, soluble tumor necrosis factor receptors 1 and 2 (sTNFR1 and sTNFR2), chemokines, brain-derived neurotrophic factor (BDNF), serum cortisol and redox status were measured. The Bayley-III test was utilized to evaluate cognitive and motor development, and multiple linear stepwise regression models were performed to verify the association between selected biomarkers and cognitive and motor development...
February 24, 2017: Behavioural Brain Research
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