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https://www.readbyqxmd.com/read/28212656/using-a-vector-pool-containing-variable-strength-promoters-to-optimize-protein-production-in-yarrowia-lipolytica
#1
Rémi Dulermo, François Brunel, Thierry Dulermo, Rodrigo Ledesma-Amaro, Jérémy Vion, Marion Trassaert, Stéphane Thomas, Jean-Marc Nicaud, Christophe Leplat
BACKGROUND: The yeast Yarrowia lipolytica is an increasingly common biofactory. To enhance protein expression, several promoters have been developed, including the constitutive TEF promoter, the inducible POX2 promotor, and the hybrid hp4d promoter. Recently, new hp4d-inspired promoters have been created that couple various numbers of UAS1 tandem elements with the minimal LEU2 promoter or the TEF promoter. Three different protein-secretion signaling sequences can be used: preLip2, preXpr2, and preSuc2...
February 17, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28202179/effects-of-melatonin-in-rats-in-the-initial-third-stage-of-pregnancy-exposed-to-sub-lethal-doses-of-herbicides
#2
Lécio Leone de Almeida, Álvaro Aguiar Coelho Teixeira, Anísio Francisco Soares, Franklin Magliano da Cunha, Valdemiro Amaro da Silva, Leucio Duarte Vieira Filho, Valéria Wanderley-Teixeira
: Exposure to the herbicides Paraquat (PQ) and Roundup(®) may cause cell lesions due to an increase in oxidative stress levels in different biological systems, even in the reproductive system. OBJECTIVE: Evaluate the possible changes in reproductive parameters and hepatic, as well as its prevention by simultaneous application of melatonin. METHODS: Thirty-five female rats at the age of 3 months were divided into seven groups: three groups exposed to sub-lethal doses of the herbicides PQ (50mg/kg) and Roundup(®) (500mg/kg) (n=5, G2, G3 and G4); three groups exposed to herbicides and simultaneous treatment with 10mg/kg of Melatonin (n=5, G5, G6 and G7) and control group (n=5, G1) from the first to the seventh day of pregnancy...
February 12, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28191969/seekr-simulation-enabled-estimation-of-kinetic-rates-a-computational-tool-to-estimate-molecular-kinetics-and-its-application-to-trypsin-benzamidine-binding
#3
Lane William Votapka, Benjamin R Jagger, Alexandra L Heyneman, Rommie E Amaro
We present the Simulation Enabled Estimation of Kinetic Rates (SEEKR) package, a suite of open-source scripts and tools designed to enable researchers to perform multi-scale computation of the kinetics of molecular binding, unbinding, and transport using a combination of molecular dynamics, Brownian dynamics, and milestoning theory. To demonstrate its utility, we compute the kon, koff, and ∆Gbind for the protein trypsin with its noncovalent binder, benzamidine, and examine the kinetics and other results generated in the context of the new software, and compare our findings to previous studies performed on the same system...
February 13, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28181520/novel-concept-for-neutron-detection-proportional-counter-filled-with-10-b-nanoparticle-aerosol
#4
F D Amaro, C M B Monteiro, J M F Dos Santos, A Antognini
The high neutron detection efficiency, good gamma-ray discrimination and non-toxicity of (3)He made of proportional counters filled with this gas the obvious choice for neutron detection, particularly in radiation portal monitors (RPM), used to control the illicit transport of nuclear material, of which neutron detectors are key components. (3)He is very rare and during the last decade this gas has become increasingly difficult to acquire. With the exception of BF3, which is toxic, no other gas can be used for neutron detection in proportional counters...
February 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28178701/a-nonrandomized-open-label-multicenter-phase-4-pilot-study-on-the-effect-and-safety-of-iluvien%C3%A2-in-chronic-diabetic-macular-edema-patients-considered-insufficiently-responsive-to-available-therapies-respond
#5
João Figueira, José Henriques, Miguel Amaro, Vítor Rosas, Dalila Alves, José Cunha-Vaz
PURPOSE: The aim of this study was to assess the effectiveness and safety of ILUVIEN® in patients with chronic diabetic macular edema (DME) who were insufficiently responsive to prior therapies. METHODS: This is a prospective, nonrandomized, multicenter, open-label, phase 4 pilot study assessing the effectiveness and safety of ILUVIEN® involving 12 patients insufficiently responsive to available therapies. Assessments were performed at screening, baseline, week 1, and months 1, 3, 6, 9, and 12...
February 9, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28174330/vessel-wall-enhancement-and-blood-cerebrospinal-fluid-barrier-disruption-after-mechanical-thrombectomy-in-acute-ischemic-stroke
#6
Arturo Renú, Carlos Laredo, Antonio Lopez-Rueda, Laura Llull, Raúl Tudela, Luis San-Roman, Xabier Urra, Jordi Blasco, Juan Macho, Laura Oleaga, Angel Chamorro, Sergio Amaro
BACKGROUND AND PURPOSE: Less than half of acute ischemic stroke patients treated with mechanical thrombectomy obtain permanent clinical benefits. Consequently, there is an urgent need to identify mechanisms implicated in the limited efficacy of early reperfusion. We evaluated the predictors and prognostic significance of vessel wall permeability impairment and its association with blood-cerebrospinal fluid barrier (BCSFB) disruption after acute stroke treated with thrombectomy. METHODS: A prospective cohort of acute stroke patients treated with stent retrievers was analyzed...
February 7, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28167693/primary-gastric-plasmacytoma-a-rare-entity
#7
Rui Caetano Oliveira, Pedro Amaro, Maria José Julião, Maria Augusta Cipriano
Extramedullary plasmacytomas (EP) are tumours composed by a monoclonal population of plasma cells that arise in extraosseus tissues, comprising <5% of all plasma cell neoplasms. Usually, EP arise in the head and neck region, and the stomach is the second most common location-gastric plasmacytoma (GP). Clinical and radiological manifestations are unspecific and may mimic other tumours like gastric adenocarcinomas, gastric stromal tumours and lymphomas, mainly marginal cell lymphoma (MALT lymphoma) and usually definitive diagnosis is provided by pathological evaluation...
February 6, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28156048/targeted-o-glycoproteomics-explored-increased-sialylation-and-identified-muc16-as-a-poor-prognosis-biomarker-in-advanced-stage-bladder-tumours
#8
Sofia Cotton, Rita Azevedo, Cristiana Gaiteiro, Dylan Ferreira, Luís Lima, Andreia Peixoto, Elisabete Fernandes, Manuel Neves, Diogo Neves, Teresina Amaro, Ricardo Cruz, Ana Tavares, Maria Rangel, André M N Silva, Lúcio Lara Santos, José Alexandre Ferreira
Bladder carcinogenesis and tumour progression is accompanied by profound alterations in protein glycosylation on the cell surface, which may be explored for improving disease management. In a search for prognosis biomarkers and novel therapeutic targets we have screened, using immunohistochemistry, a series of bladder tumours with differing clinicopathology for short-chain O-glycans commonly found in glycoproteins of human solid tumours. These included the Tn and T antigens and their sialylated counterparts sialyl-Tn(STn) and sialyl-T(ST), which are generally associated with poor prognosis...
February 3, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28143725/methylation-at-3-lcr-of-hpv16-can-be-affected-by-patient-age-and-disruption-of-e1-or-e2-genes
#9
Sérgio Menezes Amaro Filho, Neilane Bertoni, Ayslan Castro Brant, João Paulo Castello Branco Vidal, Shayany Pinto Felix, Silvia Maria Baeta Cavalcanti, Fernanda N Carestiato, Luís Felipe Leite Martins, Liz Maria de Almeida, Miguel Angelo Martins Moreira
CpG methylation at early promoter of HPV16 DNA, in the 3' end of the Long Control Region (3'LCR), has been associated to the presence of episomal forms of viral genome and, consequently, intact E1 and E2 ORFs. The DNA methylation would block the access of E2 viral protein to the E2 binding sites at early-promoter. However, is still unclear if methylation at 3'LCR of HPV16 DNA can also vary depending of other tumor characteristics in addition to viral DNA physical state. In this study, we evaluate whether the methylation level at the five CpG located at 3'LCR of HPV16 is associated to patient age and E1 and/or E2 ORFs integrity...
January 29, 2017: Virus Research
https://www.readbyqxmd.com/read/28130142/antibiotic-therapy-prior-to-hospital-admission-is-associated-with-reduced-septic-shock-and-need-for-mechanical-ventilation-in-patients-with-community-acquired-pneumonia
#10
Rosanel Amaro, Jacobo Sellarés, Eva Polverino, Catia Cillóniz, Miquel Ferrer, Laia Fernández-Barat, Josep Mensa, Michael S Niederman, Antoni Torres
A subgroup of patients admitted to the hospital with a diagnosis of community-acquired pneumonia (CAP) have received antibiotic therapy prior to admission for the current episode of pneumonia. The objective of this study was to assess the clinical course of patients receiving antibiotics prior to admission, compared to patients not previously treated. An observational cohort of 3364 CAP patients consecutively admitted to our hospital, and prospectively included, were studied. We collected clinical, microbiological and biochemical parameters, focusing on recent antibiotics received prior to admission...
January 24, 2017: Journal of Infection
https://www.readbyqxmd.com/read/28130008/probabilistic-risk-analysis-of-mercury-intake-via-food-consumption-in-spain
#11
Alicia Moreno-Ortega, Rafael Moreno-Rojas, Jesús Román Martínez-Álvarez, Montserrat González Estecha, Numa Pompilio Castro González, Manuel Ángel Amaro López
In Spain, recently, the public institutions have given information to the population in relation to fish consumption and the risk that it poses to health from the ingestion of mercury supposedly contained in the fish. At the same time, several scientific societies have published various works in this direction. All this without there being, up to now, any study on the evaluation of a probabilistic risk from mercury due to fish and seafood intake in Spain, which is the objective of this present work. For that purpose, we took individual data from a survey of the total diet of 3000 people, whose consumption of the principal fish and seafood species (49) was estimated...
January 16, 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28129923/can-environmental-pollution-by-metals-change-genetic-diversity-ucides-cordatus-linnaeus-1763-as-a-study-case-in-southeastern-brazilian-mangroves
#12
Karina Rodrigues da Silva Banci, Gustavo Maruyama Mori, Marcos Antonio de Oliveira, Fernanda Laroza Paganelli, Mariana Rangel Pereira, Marcelo Antonio Amaro Pinheiro
Industrial areas on estuarine systems are commonly affected by heavy metals, affecting all local biota. Random Amplified Polymorphic DNA (RAPD) was used to evaluate genetic diversity of Ucides cordatus at mangroves in southeastern Brazil (Juréia, J; São Vicente, SV; and Cubatão, C), with distinct pollution levels by metals. The genetic diversity of this species was compared with concentrations of metals (Cd, Pb, Cu, Cr and Hg) in the environment. A pollution gradient was confirmed (SV>C>J), with low levels detected in water, except for mercury in SV...
January 25, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28118391/phylogeography-and-conservation-genetics-of-the-ibero-balearic-three-spined-stickleback-gasterosteus-aculeatus
#13
Marta Vila, Miguel Hermida, Carlos Fernández, Silvia Perea, Ignacio Doadrio, Rafaela Amaro, Eduardo San Miguel
Genetic isolation and drift may imperil peripheral populations of wide-ranging species more than central ones. Therefore, information about species genetic variability and population structure is invaluable for conservation managers. The Iberian populations of three-spined stickleback lie at the southwestern periphery of the European distribution of Gasterosteus aculeatus. This teleost is a protected species in Portugal and Spain and local extinctions have been reported in both countries during the last decades...
2017: PloS One
https://www.readbyqxmd.com/read/28093269/invasive-disease-versus-urinary-antigen-confirmed-pneumococcal-community-acquired-pneumonia
#14
Adrian Ceccato, Antoni Torres, Catia Cilloniz, Rosanel Amaro, Albert Gabarrus, Eva Polverino, Elena Prina, Carolina Garcia-Vidal, Eva Muñoz-Conejero, Cristina Mendez, Isabel Cifuentes, Jorge Puig de la Bella Casa, Rosario Menendez, Michael S Niederman
OBJECTIVES: The burden of pneumococcal disease is measured only through patients with invasive pneumococcal disease. The urinary antigen test (UAT) for pneumococcus has exhibited a high sensitivity and specificity. We aimed to compare the pneumococcal pneumonias diagnosed as invasive disease with pneumococcal pneumonias defined by UAT. METHODS: Prospective observational study on consecutive non-immunosuppressed patients with community-acquired pneumonia from January 2000 to December 2014...
January 13, 2017: Chest
https://www.readbyqxmd.com/read/28093266/comparative-analysis-of-nk-cell-receptor-repertoire-in-adults-and-very-elderly-subjects-with-cytomegalovirus-infection
#15
Guillermo Juárez-Vega, Velia Rangel-Ramírez, Adriana Monsiváis-Urenda, Perla Niño-Moreno, Christian Garcia-Sepúlveda, Daniel E Noyola, Roberto González-Amaro
Human cytomegalovirus (HCMV) infection in children and young adults has been associated with changes in the innate immune system. We herein analyzed the possible effect of very long term HCMV infection on the expression of several NK cell receptors. Ninety HCMV-seropositive individuals were included and classified as young adults (n=30), elderly (n=30) and very elderly subjects (n=30). A peripheral blood sample was obtained and the expression of NK cell receptors (NKG2A, NKG2C, ILT2, CD161, KIR2DL1, KIR3DL1, and KIR3DL2) by NK and other lymphocyte subsets was assessed by flow cytometry...
January 13, 2017: Human Immunology
https://www.readbyqxmd.com/read/28068772/a-reflection-on-klaus-schulten
#16
Rommie E Amaro
No abstract text is available yet for this article.
January 10, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28062859/outcomes-after-direct-thrombectomy-or-combined-intravenous-and-endovascular-treatment-are-not-different
#17
Sònia Abilleira, Aida Ribera, Pedro Cardona, Marta Rubiera, Elena López-Cancio, Sergi Amaro, Ana Rodríguez-Campello, Pol Camps-Renom, David Cánovas, Maria Angels de Miquel, Alejandro Tomasello, Sebastian Remollo, Antonio López-Rueda, Elio Vivas, Joan Perendreu, Miquel Gallofré
BACKGROUND AND PURPOSE: Whether intravenous thrombolysis adds a further benefit when given before endovascular thrombectomy (EVT) is unknown. Furthermore, intravenous thrombolysis delays time to groin puncture, mainly among drip and ship patients. METHODS: Using region-wide registry data, we selected cases that received direct EVT or combined intravenous thrombolysis+EVT for anterior circulation strokes between January 2011 and October 2015. Treatment effect was estimated by stratification on a propensity score...
January 6, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28061740/prevalence-and-determinants-of-bullying-among-health-care-workers-in-portugal
#18
Pedro Norton, Viviana Costa, Joel Teixeira, Ana Azevedo, António Roma-Torres, Joana Amaro, Liliana Cunha
Bullying is defined as systematic exposure to humiliation as well as hostile and violent behaviors against one or more individuals. These behaviors are a serious, growing problem, which affects a significant proportion of health care professionals. To support the hospital's risk management policy, a cross-sectional study was undertaken to determine the prevalence of bullying in this institution and identify the determinants of bullying. Bullying was measured using the Negative Acts Questionnaire-Revised, Portuguese version (NAQ-R), a self-administered tool...
January 1, 2017: Workplace Health & Safety
https://www.readbyqxmd.com/read/28059143/influence-of-coronary-artery-disease-and-subclinical-atherosclerosis-related-polymorphisms-on-the-risk-of-atherosclerosis-in-rheumatoid-arthritis
#19
Raquel López-Mejías, Alfonso Corrales, Esther Vicente, Montserrat Robustillo-Villarino, Carlos González-Juanatey, Javier Llorca, Fernanda Genre, Sara Remuzgo-Martínez, Trinidad Dierssen-Sotos, José A Miranda-Filloy, Marco A Ramírez Huaranga, Trinitario Pina, Ricardo Blanco, Juan J Alegre-Sancho, Enrique Raya, Verónica Mijares, Begoña Ubilla, Iván Ferraz-Amaro, Carmen Gómez-Vaquero, Alejandro Balsa, Francisco J López-Longo, Patricia Carreira, Isidoro González-Álvaro, J Gonzalo Ocejo-Vinyals, Luis Rodríguez-Rodríguez, Benjamín Fernández-Gutiérrez, Santos Castañeda, Javier Martín, Miguel A González-Gay
A genetic component influences the development of atherosclerosis in the general population and also in rheumatoid arthritis (RA). However, genetic polymorphisms associated with atherosclerosis in the general population are not always involved in the development of cardiovascular disease (CVD) in RA. Accordingly, a study in North-American RA patients did not show the association reported in the general population of coronary artery disease with a series of relevant polymorphisms (TCF21, LPA, HHIPL1, RASD1-PEMT, MRPS6, CYP17A1-CNNM2-NT5C2, SMG6-SRR, PHACTR1, WDR12 and COL4A1-COL4A2)...
January 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28055580/diagnosing-borreliosis
#20
Sally J Cutler, Nataliia Rudenko, Maryna Golovchenko, Wibke J Cramaro, Josiane Kirpach, Sara Savic, Iva Christova, Ana Amaro
Borrelia species fall into two groups, the Borrelia burgdorferi sensu lato (Bbsl) complex, the cause of Lyme borreliosis (also known as Lyme disease), and the relapsing fever group. Both groups exhibit inter- and intraspecies diversity and thus have variations in both clinical presentation and diagnostic approaches. A further layer of complexity is derived from the fact that ticks may carry multiple infectious agents and are able to transmit them to the host during blood feeding, with potential overlapping clinical manifestations...
January 2017: Vector Borne and Zoonotic Diseases
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