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Marco A Molina-Montenegro, Ian S Acuña-Rodríguez, Tomás S M Flores, Rasme Hereme, Alejandra Lafon, Cristian Atala, Cristian Torres-Díaz
It has been widely suggested that invasion success along broad environmental gradients may be partially due to phenotypic plasticity, but rapid evolution could also be a relevant factor for invasions. Seed and fruit traits can be relevant for plant invasiveness since they are related to dispersal, germination, and fitness. Some seed traits vary along environmental gradients and can be heritable, with the potential to evolve by means of natural selection. Utilizing cross-latitude and reciprocal-transplant experiments, we evaluated the adaptive value of seed thickness as assessed by survival and biomass accumulation in Taraxacum officinale plants...
2018: Frontiers in Plant Science
Samantha Joye, Sara Kleindienst, Tito David Peña-Montenegro
Hydrocarbon-degrading bacteria are phylogenetically and physiologically diverse and employ layered strategies to sense hydrocarbons, respond transcriptionally, and then move toward an oil source. They then produce biopolymers that increase hydrocarbon bioavailability. This SnapShot highlights how these bacteria respond to and then remove hydrocarbon contaminants from the environment. To view this SnapShot, open or download the PDF.
March 8, 2018: Cell
Franco Mascayano, Cristián Montenegro
In this article we describe what is known as the recovery approach to mental health, considering the possibilities and potentialities that this model offers to Latin America. We propose that its adoption would enhance the modernization of systems and policies on mental health in the region. Although improvements in these areas are well recognized and documented, the participation of users and the development of services according to their needs and interests constitutes an important gap. We brie?y describe the historical roots of the recovery model and the evidence that supports it, emphasizing how the model has transformed mental health care in different regions of the globe...
November 2017: Vertex: Revista Argentina de Psiquiatriá
Olivera Bojovic, Milic Medenica, Danko Zivkovic, Bozidarka Rakocevic, Goran Trajkovic, Darija Kisic-Tepavcevic, Anita Grgurevic
BACKGROUND: Fundamental measures of control of tuberculosis are early detection and timely treatment of the affected. The aim of this study was to identify factors associated with patient-related and health system-related delays among patients with tuberculosis in the Republic of Montenegro. METHODS: A cross-sectional study included 130 tuberculosis patients older than 15 years of age. The inclusion criteria were diagnosis of tuberculosis based on clinical, pathohistological and microbiological findings...
2018: PloS One
Aletheia Soares Sampaio, Ana Lucia Ribeiro de Vasconcelos, Clarice Neuenschwander Lins de Morais, George Tadeu Nunes Diniz, Anna Lígia de Castro Figueiredo, Sílvia Maria Lucena Montenegro
INTRODUCTION: The functioning of the immune system during pregnancy is altered in both human immunodeficiency virus (HIV)-infected and uninfected women. Unfavorable socioeconomic conditions have been indicative of higher morbidity and mortality and worsening of the immune system. The aim of this study was to correlate social status with levels of interleukin (IL)-10 (non-inflammatory) and interferon-gamma (IFN-γ; inflammatory) cytokines. METHODS: A cross-sectional study was conducted with three groups of women: 33 pregnant HIV-infected (G1); 40 non-pregnant, HIV-infected (G2); and 35 pregnant, HIV-uninfected...
January 2018: Revista da Sociedade Brasileira de Medicina Tropical
Maria Serena Maglione, Javier Casado-Montenegro, Eva-Corinna Fritz, Núria Crivillers, Bart Jan Ravoo, Concepció Rovira, Marta Mas-Torrent
Here, on ITO//Au patterned substrates SAMs of ferrocene (Fc) on the Au regions and of anthraquinone (AQ) on the ITO areas are prepared, exhibiting three stable redox states. Furthermore, by selectively oxidizing or reducing the Fc or AQ units, respectively, the surface properties are locally modified. As a proof-of-concept, such a confinement of the properties is exploited to locally form host-guest complexes with β-cyclodextrin on specific surface regions depending on the applied voltage.
March 7, 2018: Chemical Communications: Chem Comm
Brian Montenegro, Christina Freiberger, Lauren Veit, Michael Amberson, Sagori Mukhopadhyay, Lawrence Rhein
No abstract text is available yet for this article.
December 27, 2017: Pediatrics and Neonatology
Perko Vukotic, Nevenka Antovic, Andrija Djurovic, Ranko Zekic, Nikola Svrkota, Tomislav Andjelic, Ranko Svrkota, Radivoje Mrdak, Natasa Bjelica, Tamara Djurovic, Aleksandar Dlabac, Marija Bogicevic
The first nationwide indoor radon survey in Montenegro started in 2002 and year-long radon measurements with CR-39 track-etch detectors, within the national grid of 5 km × 5 km and local grids in urban areas of 0.5 km × 0.5 km, were performed in homes in half of the country's territory. The survey continued in 2014 and measurements in the rest of the country were completed at the end of 2015. The 953 valid results, obtained in the national radon survey, give an average radon activity concentration in Montenegrin homes of 110 Bq/m3 ...
February 28, 2018: Journal of Environmental Radioactivity
Lucia Montenegro, Rita Turnaturi, Carmela Parenti, Lorella Pasquinucci
The evaluation of UV-filter in vitro percutaneous absorption allows the estimation of the systemic exposure dose (SED) and the margin of safety (MoS) of sunscreen products. As both the vehicle and pattern of application may affect sunscreen safety and efficacy, we evaluated in vitro release and skin permeation of two widely used UV-filters, octylmethoxycinnamate (OMC) and butylmethoxydibenzoylmethane (BMBM) from topical formulations with different features (oil in water (O/W) emulsions with different viscosity, water in oil (W/O) emulsion, oils with different lipophilicity)...
February 27, 2018: Pharmaceutics
Joana C Prata, Beatriz R B O Lavorante, Maria da Conceição B S M Montenegro, Lúcia Guilhermino
Microplastics and pharmaceuticals are considered ubiquitous and emergent pollutants of high concern but the knowledge on their effects on primary producers is still limited, especially those caused by mixtures. Thus, the goal of the present study was to investigate if the presence of microplastics (1-5 μm diameter) influences the toxicity of the pharmaceuticals procainamide and doxycycline to the marine microalga Tetraselmis chuii. Bioassays (96 h) to investigate the toxicity of those substances individually and in mixtures (i...
February 21, 2018: Aquatic Toxicology
Daniel da Costa, Cristián Montenegro, Patricio Palavecino, Germán Lobos, Tomás Cermenati, Jaime Poniachik
Management of gastrointestinal bleeding caused by fundal varices is particularly difficult to manage. The options are: transjugular intrahepatic portosystemic shunt (TIPS), endoscopic injection of cyanoacrylate or balloon-occluded retrograde transvenous obliteration (BRTO). We report a 63 year-old male with a cirrhosis caused by hepatitis C and a 66 year-old female with a cirrhosis caused by a non-alcoholic steatohepatitis. Both patients had a gastrointestinal bleeding caused by fundal varices and were treated with sclerotherapy with cyanoacrylate assisted with BRTO...
October 2017: Revista Médica de Chile
Sanja Vodopić, Slavica Vujisić
Stigma remains a distressing consequence of epilepsy worldwide. We assessed stigma markers among citizens of Montenegro. Randomly selected adults aged 18 to 65 were interviewed using a 10-item questionnaire, which had been used in similar settings. Descriptive statistics, χ2-test and Fisher exact test were used in order to identify factors associated with negative attitudes. After exclusions and refusals, the questionnaire was administered to 1000 people, 91% of whom had heard about epilepsy. Less than half knew someone with epilepsy and 31...
September 2017: Acta Clinica Croatica
Mirian Galliote Morale, Walason da Silva Abjaude, Aline Montenegro Silva, Luisa Lina Villa, Enrique Boccardo
Cervical cancer is one of the leading causes of cancer death in women worldwide. Persistent infection with high-risk human papillomavirus (HPV) types is the main risk factor for the development of cervical cancer precursor lesions. HPV persistence and tumor development is usually characterized by innate immune system evasion. Alterations in Toll-like receptors (TLR) expression and activation may be important for the control of HPV infections and could play a role in the progression of lesions and tumors. In the present study, we analyzed the mRNA expression of 84 genes involved in TLR signaling pathways...
February 22, 2018: Scientific Reports
Wendell L Bernardes, Rafael A Montenegro, Walace D Monteiro, Raul de Almeida Freire, Renato Massaferri, Paulo Farinatti
Bernardes, WL, Montenegro, RA, Monteiro, WD, de Almeida Freire, R, Massaferri, R, and Farinatti, P. Optimizing a treadmill ramp protocol to evaluate aerobic capacity of hemiparetic poststroke patients. J Strength Cond Res 32(3): 876-884, 2018-A correct assessment of cardiopulmonary capacity is important for aerobic training within motor rehabilitation of poststroke hemiparetic patients (PSHPs). However, specific cardiopulmonary exercise testing (CPET) for these patients are scarce. We proposed adaptations in a protocol originally developed for PSHPs by Ovando et al...
March 2018: Journal of Strength and Conditioning Research
Ramón López-Higes, María T Martín-Aragoneses, Susana Rubio-Valdehita, María L Delgado-Losada, Pedro Montejo, Mercedes Montenegro, José M Prados, Jaisalmer de Frutos-Lucas, David López-Sanz
The present study explores the role of cognitive reserve, executive functions, and working memory (WM) span, as factors that might explain training outcomes in cognitive status. Eighty-one older adults voluntarily participated in the study, classified either as older adults with subjective cognitive decline or cognitively intact. Each participant underwent a neuropsychological assessment that was conducted both at baseline (entailing cognitive reserve, executive functions, WM span and depressive symptomatology measures, as well as the Mini-Mental State Exam regarding initial cognitive status), and then 6 months later, once each participant had completed the training program (Mini-Mental State Exam at the endpoint)...
2018: Frontiers in Aging Neuroscience
Rhaquel de Morais Alves Barbosa Oliveira, Fernanda Montenegro de Carvalho Araújo, Luciano Pamplona de Góes Cavalcanti
OBJECTIVE: to characterize the entomological and epidemiological aspects of dengue epidemics occurred in Fortaleza, Ceará, Brazil, from 2001 to 2012. METHODS: descriptive study with data from the Information System for Notifiable Diseases (Sinan), Information System of Hospitalizations due to Yellow Fever and Dengue (2001-2009), National Program for Dengue Control (2010-2012), and Rapid Survey of Aedes aegypti Infestation Index, referring to the years in which the incidence of dengue was above 75%...
2018: Epidemiologia e Servicos de Saude: Revista do Sistema Unico de Saude do Brasil
Jully Oyama, Fabiana Borges Padilha Ferreira, Carolina Cella Conter, Daniele Stéfanie Sara Lopes Lera-Nonose, Áquila Carolina Fernandes Herculano Ramos-Milaré, Eneide Aparecida Sabaini Venazzi, Thaís Gomes Verzignassi Silveira, Maria Valdrinez Campana Lonardoni
This clinical case presents a patient with a raised and ulcerative lesion with erythematous edges in the mouth, on the lower lip that was unsuccessfully treated as herpes labialis. Clinical data and laboratory tests (Montenegro skin test, indirect immunofluorescence, direct parasite search and polymerase chain reaction) led to the diagnosis of American tegumentary leishmaniasis caused by Leishmania (Viannia) sp. Treatment with pentavalent antimonial (Glucantime®) for 120 days was not effective and administration of amphotericin B for 30 days resulted in wound healing...
2018: Revista do Instituto de Medicina Tropical de São Paulo
Andrea Beatriz Cragnolini, Gonzalo Montenegro, Wilma J Friedman, Daniel Hugo Mascó
Astrocytes are a heterogeneous population of glial cells that react to brain insults through a process referred to as astrogliosis. Reactive astrocytes are characterized by an increase in proliferation, size, migration to the injured zone and release of a plethora of chemical mediators such as NGF and BDNF. The aim of this study was to determine whether there are brain region-associated responses of astrocytes to an injury and to the neurotrophins NGF and BDNF. We used the scratch injury model to study the closure of a wound inflicted on a monolayer of astrocytes obtained from cortex, hippocampus or striatum...
February 11, 2018: Molecular and Cellular Neurosciences
Josefa Fernández-Rosas, Marcia Pessego, Angel Acuña, Carlos Vazquez-Vazquez, Javier Montenegro, Mercedes Parajo, Pedro Rodriguez-Dafonte, Faruk Nome, Luis García-Río
Binding constants, Log K ≈ 6.6 M-1, and NMR characterization of the complexes formed by sulfobetaines and cucurbit[7]uril (CB7) support the electrostatic interaction as major driving force. This very strong binding motif is cross-linked by additional CB7 molecules resulting in the formation of supramolecular nanoparticles (SNPs) with an average diameter of 172 nm and negative surface potential. The time course evolution of the particle size and the surface potential suggests the very fast formation of an amorphous aggregate that absorbs additional amount of sulfobetaine...
February 12, 2018: Langmuir: the ACS Journal of Surfaces and Colloids
E F de Oliveira-Filho, R A S Oliveira, D R A Ferreira, P O Laroque, L J Pena, M M Valença-Montenegro, R A Mota, L H V G Gil
Mosquito-borne diseases such as dengue, yellow fever and, more recently, Chikungunya virus (CHIKV) and Zika virus (ZIKV) have a great impact in the public health. In addition, the presence of such viruses might have an impact on wild animal conservation as well as their possible role as animal reservoir. Here, we performed a serological survey searching for antibodies against a panel of flaviviruses [ZIKV, Dengue virus (DENV), Yellow Fever virus (YFV), West Nile virus (WNV), Saint Louis Encephalitis virus (SLEV), Ilheus virus (ILHV) and Rocio virus (ROCV)] using plaque reduction neutralization test (PRNT90 ) in both free-ranging and captive capuchin monkeys (Sapajus flavius and Sapajus libidinosus)...
February 8, 2018: Transboundary and Emerging Diseases
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