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https://www.readbyqxmd.com/read/28327085/a-shift-in-the-virulence-potential-of-corynebacterium-pseudotuberculosis-biovar-ovis-after-passage-in-a-murine-host-demonstrated-through-comparative-proteomics
#1
Wanderson M Silva, Fernanda A Dorella, Siomar C Soares, Gustavo H M F Souza, Thiago L P Castro, Núbia Seyffert, Henrique Figueiredo, Anderson Miyoshi, Yves Le Loir, Artur Silva, Vasco Azevedo
BACKGROUND: Corynebacterium pseudotuberculosis biovar ovis, a facultative intracellular pathogen, is the etiologic agent of caseous lymphadenitis in small ruminants. During the infection process, C. pseudotuberculosis changes its gene expression to resist different types of stresses and to evade the immune system of the host. However, factors contributing to the infectious process of this pathogen are still poorly documented. To better understand the C. pseudotuberculosis infection process and to identify potential factors which could be involved in its virulence, experimental infection was carried out in a murine model using the strain 1002_ovis and followed by a comparative proteomic analysis of the strain before and after passage...
March 22, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28323870/contribution-of-sortase-srta2-to-lactobacillus-casei-bl23-inhibition-of-staphylococcus-aureus-internalization-into-bovine-mammary-epithelial-cells
#2
Renata F S Souza, Julien Jardin, Chantal Cauty, Lucie Rault, Damien S Bouchard, Luis G Bermúdez-Humarán, Philippe Langella, Vicente Monedero, Núbia Seyffert, Vasco Azevedo, Yves Le Loir, Sergine Even
Probiotics have been considered as a promising strategy to prevent various diseases in both humans and animals. This approach has gained interest in recent years as a potential means to control bovine mastitis. In a previous study, we found that several L. casei strains, including BL23, were able to inhibit the internalization of S. aureus, a major etiologic agent of mastitis, into bovine mammary epithelial cells (bMEC). This antagonism required a direct contact between L. casei and bMEC or S. aureus, suggesting the inhibition relied on interactions between L...
2017: PloS One
https://www.readbyqxmd.com/read/28316974/exploration-of-nitrate-reductase-metabolic-pathway-in-corynebacterium-pseudotuberculosis
#3
Sintia Almeida, Cassiana Sousa, Vinícius Abreu, Carlos Diniz, Elaine M S Dorneles, Andrey P Lage, Debmalya Barh, Vasco Azevedo
Based on the ability of nitrate reductase synthesis, Corynebacterium pseudotuberculosis is classified into two biovars: Ovis and Equi. Due to the presence of nitrate reductase, the Equi biovar can survive in absence of oxygen. On the other hand, Ovis biovar that does not have nitrate reductase is able to adapt to various ecological niches and can grow on certain carbon sources. Apart from these two biovars, some other strains are also able to carry out the reduction of nitrate. The enzymes that are involved in electron transport chain are also identified by in silico methods...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/28316604/expression-of-the-knotted-homeobox-genes-in-the-cactaceae-cambial-zone-suggests-their-involvement-in-wood-development
#4
Jorge Reyes-Rivera, Gustavo Rodríguez-Alonso, Emilio Petrone, Alejandra Vasco, Francisco Vergara-Silva, Svetlana Shishkova, Teresa Terrazas
The vascular cambium is a lateral meristem that produces secondary xylem (i.e., wood) and phloem. Different Cactaceae species develop different types of secondary xylem; however, little is known about the mechanisms underlying wood formation in the Cactaceae. The KNOTTED HOMEOBOX (KNOX) gene family encodes transcription factors that regulate plant development. The role of class I KNOX genes in the regulation of the shoot apical meristem, inflorescence architecture, and secondary growth is established in a few model species, while the functions of class II KNOX genes are less well understood, although the Arabidopsis thaliana class II KNOX protein KNAT7 is known to regulate secondary cell wall biosynthesis...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28306682/training-future-anesthesiologists-in-obstetric-care
#5
Mauricio Vasco Ramírez
PURPOSE OF REVIEW: In order for the obstetric anesthesiologist to become a true perioperative / peripartum physician, a change in formative programs and certification process in anesthesia are needed. RECENT FINDINGS: Anesthesia training programs are migrating to competency based medical education (CBME) worldwide. The traditional model of attending lectures, grand rounds, reading textbooks and journal papers should be complemented by virtual modalities such as massive open online courses or online teaching tools...
March 16, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28298728/modified-approach-to-the-characterization-of-adrenal-nodules-using-a-standard-abdominal-magnetic-resonance-imaging-protocol
#6
António P Matos, Richard C Semelka, Vasco Herédia, Mamdoh AlObaidiy, Filipe Veloso Gomes, Miguel Ramalho
OBJECTIVE: To describe a modified approach to the evaluation of adrenal nodules using a standard abdominal magnetic resonance imaging protocol. MATERIALS AND METHODS: Our sample comprised 149 subjects (collectively presenting with 132 adenomas and 40 nonadenomas). The adrenal signal intensity index was calculated. Lesions were grouped by pattern of enhancement (PE), according to the phase during which the wash-in peaked: arterial phase (type 1 PE); portal venous phase (type 2 PE); and interstitial phase (type 3 PE)...
January 2017: Radiologia Brasileira
https://www.readbyqxmd.com/read/28290276/meta-analysis-on-the-effect-of-interventions-used-in-cattle-processing-plants-to-reduce-escherichia-coli-contamination
#7
REVIEW
Samson Zhilyaev, Vasco Cadavez, Ursula Gonzales-Barron, Katherine Phetxumphou, Daniel Gallagher
Cattle coming from feedlots to slaughter often harbor pathogenic E. coli that can contaminate final meat products. As a result, reducing pathogenic contamination during processing is a main priority. Unfortunately, food safety specialists face challenges when trying to determine optimal intervention strategies from published literature. Plant intervention literature results and methods vary significantly, making it difficult to implement interventions with any degree of certainty in their effectiveness. To create a more robust understanding of plant intervention effectiveness, a formal systematic literature review and meta-analysis was conducted on popular intervention methods...
March 2017: Food Research International
https://www.readbyqxmd.com/read/28288204/correction-linear-in-the-parameters-oblique-least-squares-lols-provides-more-accurate-estimates-of-density-dependent-survival
#8
Vasco M N C S Vieira, Aschwin H Engelen, Oscar R Huanel, Marie-Laure Guillemin
[This corrects the article DOI: 10.1371/journal.pone.0167418.].
2017: PloS One
https://www.readbyqxmd.com/read/28274950/management-of-endocrine-disease-diagnostic-and-therapeutic-approach-of-tall-stature
#9
Edoarda Vasco de Albuquerque Albuquerque, Renata C Scalco, Alexander Augusto de Lima Jorge
Tall stature is defined as a height of more than 2 standard deviations (SD) above average for same sex and age. Tall individuals are usually referred to endocrinologists so that hormonal disorders leading to abnormal growth are excluded. However, the majority of these patients have familial tall stature or constitutional advance of growth (generally associated with obesity), both of which are diagnoses of exclusion. It is necessary to have familiarity with a large number of rarer overgrowth syndromes, especially because some of them may have severe complications such as aortic aneurysm, thromboembolism and tumor predisposition and demand specific follow-up approaches...
March 8, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28265271/cd4-t-follicular-helper-cells-and-hiv-infection-friends-or-enemies
#10
REVIEW
Félicien Moukambi, Vasco Rodrigues, Yasmina Fortier, Henintsoa Rabezanahary, Chloé Borde, Bernard Krust, Guadalupe Andreani, Ricardo Silvestre, Constantinos Petrovas, Mireille Laforge, Jérôme Estaquier
Follicular T helper (Tfh) cells, a subset of CD4 T lymphocytes, are essential for memory B cell activation, survival, and differentiation and assist B cells in the production of antigen-specific antibodies. Work performed in recent years pointed out the importance of Tfh cells in the context of HIV and SIV infections. The importance of tissue distribution of Tfh is also an important point since their frequency differs between peripheral blood and lymph nodes compared to the spleen, the primary organ for B cell activation, and differentiation...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28260516/wounds-difficult-to-heal-an-effective-treatment-strategy
#11
Raffaele Capoano, Rita Businaro, Maria Chiara Tesori, Claudia Donello, Federica Lombardo, Vincenza Rita Lo Vasco, Lorena Capriotti, Mariangela Corsi, Tania Di Raimo, Martina Leopizzi, Bruno Salvati, Serafino Ricci
OBJECTIVE: Treatment of wounds difficult to heal concerns 50% of the elderly population in Italy and is therefore an extreme relevance social burden. The present study shows how the treatment with autologous leuco-platelets reduces the healing time of wounds improving the functional recovery. PATIENTS AND METHODS: One hundred patients with ulcers of the legs were divided in two groups: 1) 50 patients treated with conventional therapies; 2) 50 patients treated with autologous leuco-platelet concentrate (LPC) and HYAFF as a scaffold...
March 1, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/28254974/genome-sequences-of-two-brucella-suis-strains-isolated-from-the-same-patient-8-years-apart
#12
Marcus Vinicius Canário Viana, Alice Rebecca Wattam, Dhwani Govil Batra, Sébastien Boisvert, Thomas Scott Brettin, Michael Frace, Fangfang Xia, Vasco Azevedo, Rebekah Tiller, Alex R Hoffmaster
Brucella suis is a Gram-negative, facultative intracellular pathogen that has pigs as its preferred host, but it can also infect humans. Here, we report the draft genome sequences of two B. suis strains that were isolated from the same patient, 8 years apart.
March 2, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28229842/-thyroid-metastasis-as-the-initial-presentation-of-an-asymptomatic-clear-cell-renal-carcinoma
#13
Janine Carmelino, Ana Paula Tavares, Ana Crespo, José Mário Coutinho, António Lázaro, Vasco Ribeiro, Eduardo Barroso
INTRODUCTION: Clear cell renal carcinoma metastases to the thyroid gland are rare and only diagnosable after an immunohistochemistry analysis of the histological sample. The purpose of this article is to report a case of thyroid metastasis as the initial presentation of a clear cell renal carcinoma. CASE REPORT: Male patient with a solid nodule in the left lobe of the thyroid, 5.3 cm in diameter, suspicious of malignancy, for which a total thyroidectomy with central compartment lymphadenectomy was performed...
November 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28229836/-fibrinolytics-in-the-treatment-of-complicated-pleural-effusions
#14
Ana Coelho, Margarida Coelho, Joana Pereira, Vasco Lavrador, Lurdes Morais, Fátima Carvalho
INTRODUCTION: The treatment of complicated pleural parapneumonic effusions with intrapleural instillation of fibrinolytics, has shown similar results as surgical treatment. The present study aimed to evaluate the results of the use of intrapleural instillation of fibrinolytics in the treatment of complicated pleural parapneumonic effusions, in patients followed in our hospital. MATERIAL AND METHODS: A retrospective review of all the patients (aged between one month and 18 years) diagnosed with complicated parapneumonic effusions, which had chest drain insertion with intrapleural instillation of fibrinolytic, between January 2005 and December 2013, was undertaken...
November 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28218062/and-next%C3%A2-adnexa-self-inflicted-alopecias
#15
Nélia Cunha, Vasco Serrão, Joana Cabete, André Lencastre
No abstract text is available yet for this article.
February 1, 2017: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/28216574/an-in-silico-identification-of-common-putative-vaccine-candidates-against-treponema-pallidum-a-reverse-vaccinology-and-subtractive-genomics-based-approach
#16
Arun Kumar Jaiswal, Sandeep Tiwari, Syed Babar Jamal, Debmalya Barh, Vasco Azevedo, Siomar C Soares
Sexually transmitted infections (STIs) are caused by a wide variety of bacteria, viruses, and parasites that are transmitted from one person to another primarily by vaginal, anal, or oral sexual contact. Syphilis is a serious disease caused by a sexually transmitted infection. Syphilis is caused by the bacterium Treponema pallidum subspecies pallidum. Treponema pallidum (T. pallidum) is a motile, gram-negative spirochete, which can be transmitted both sexually and from mother to child, and can invade virtually any organ or structure in the human body...
February 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28203226/microbial-anti-inflammatory-molecule-mam-from-faecalibacterium-prausnitzii-shows-a-protective-effect-on-dnbs-and-dss-induced-colitis-model-in-mice-through-inhibition-of-nf-%C3%AE%C2%BAb-pathway
#17
Natalia M Breyner, Cristophe Michon, Cassiana S de Sousa, Priscilla B Vilas Boas, Florian Chain, Vasco A Azevedo, Philippe Langella, Jean M Chatel
Faecalibacterium prausnitzii and its supernatant showed protective effects in different chemically-induced colitis models in mice. Recently, we described 7 peptides found in the F. prausnitzii supernatant, all belonging to a protein called Microbial Anti-inflammatory Molecule (MAM). These peptides were able to inhibit NF-κB pathway in vitro and showed anti-inflammatory properties in vivo in a DiNitroBenzene Sulfate (DNBS)-induced colitis model. In this current proof we tested MAM effect on NF-κB pathway in vivo, using a transgenic model of mice producing luciferase under the control of NF-κB promoter...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28196936/influences-of-duration-of-inspiratory-effort-respiratory-mechanics-and-ventilator-type-on-asynchrony-with-pressure-support-and-proportional-assist-ventilation
#18
Renata S Vasconcelos, Raquel P Sales, Luíz H de P Melo, Liégina S Marinho, Vasco Pd Bastos, Andréa da Nc Nogueira, Juliana C Ferreira, Marcelo A Holanda
BACKGROUND: Pressure support ventilation (PSV) is often associated with patient-ventilator asynchrony. Proportional assist ventilation (PAV) offers inspiratory assistance proportional to patient effort, minimizing patient-ventilator asynchrony. The objective of this study was to evaluate the influence of respiratory mechanics and patient effort on patient-ventilator asynchrony during PSV and PAV plus (PAV+). METHODS: We used a mechanical lung simulator and studied 3 respiratory mechanics profiles (normal, obstructive, and restrictive), with variations in the duration of inspiratory effort: 0...
February 14, 2017: Respiratory Care
https://www.readbyqxmd.com/read/28194152/hsp65-producing-lactococcus-lactis-prevents-inflammatory-intestinal-disease-in-mice-by-il-10-and-tlr2-dependent-pathways
#19
Ana Cristina Gomes-Santos, Rafael Pires de Oliveira, Thaís Garcias Moreira, Archimedes Barbosa Castro-Junior, Bernardo Coelho Horta, Luísa Lemos, Leonardo Augusto de Almeida, Rafael Machado Rezende, Denise Carmona Cara, Sérgio Costa Oliveira, Vasco Ariston Carvalho Azevedo, Anderson Miyoshi, Ana Maria Caetano Faria
Heat shock proteins (Hsps) are highly expressed at all sites of inflammation. As they are ubiquitous and immunodominant antigens, these molecules represent good candidates for the therapeutic use of oral tolerance in autoimmune and chronic inflammatory diseases. Evidences from human and animal studies indicate that inflammatory bowel disease (IBD) results from uncontrolled inflammatory responses to intestinal microbiota. Hsps are immunodominant proteins expressed by several immune cells and by commensal bacteria...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28193209/secretion-of-biologically-active-pancreatitis-associated-protein-i-pap-by-genetically-modified-dairy-lactococcus-lactis-nz9000-in-the-prevention-of-intestinal-mucositis
#20
Rodrigo D Carvalho, Natalia Breyner, Zelia Menezes-Garcia, Nubia M Rodrigues, Luisa Lemos, Tatiane U Maioli, Danielle da Gloria Souza, Denise Carmona, Ana M C de Faria, Philippe Langella, Jean-Marc Chatel, Luis G Bermúdez-Humarán, Henrique C P Figueiredo, Vasco Azevedo, Marcela S de Azevedo
BACKGROUND: Mucositis is one of the most relevant gastrointestinal inflammatory conditions in humans, generated by the use of chemotherapy drugs, such as 5-fluoracil (5-FU). 5-FU-induced mucositis affects 80% of patients undergoing oncological treatment causing mucosal gut dysfunctions and great discomfort. As current therapy drugs presents limitations in alleviating mucositis symptoms, alternative strategies are being pursued. Recent studies have shown that the antimicrobial pancreatitis-associated protein (PAP) has a protective role in intestinal inflammatory processes...
February 13, 2017: Microbial Cell Factories
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