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https://www.readbyqxmd.com/read/29777875/switching-cell-penetrating-and-cxcr4-binding-activities-of-nanoscale-organized-arginine-rich-peptides
#1
Marianna Teixeira de Pinho Favaro, Naroa Serna, Laura Sánchez-García, Rafael Cubarsi, Mónica Roldán, Alejandro Sánchez-Chardi, Ugutz Unzueta, Ramón Mangues, Neus Ferrer-Miralles, Adriano Rodrigues Azzoni, Esther Vázquez, Antonio Villaverde
Arginine-rich protein motifs have been described as potent cell-penetrating peptides (CPPs) but also as rather specific ligands of the cell surface chemokine receptor CXCR4, involved in the infection by the human immunodeficiency virus (HIV). Polyarginines are commonly used to functionalize nanoscale vehicles for gene therapy and drug delivery, aimed to enhance cell penetrability of the therapeutic cargo. However, under which conditions these peptides do act as either unspecific or specific ligands is unknown...
May 16, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/29777534/is-it-necessary-to-have-a-dentist-within-an-intensive-care-unit-team-report-of-a-randomised-clinical-trial
#2
Wanessa Teixeira Bellissimo-Rodrigues, Mayra Gonçalves Menegueti, Gilberto Gambero Gaspar, Hayala Cristina Cavenague de Souza, Maria Auxiliadora-Martins, Anibal Basile-Filho, Roberto Martinez, Fernando Bellissimo-Rodrigues
OBJECTIVE: To evaluate the effectiveness of dental treatment in improving oral health in critical patients. METHODS: This randomised clinical trial was conducted in a general intensive care unit (ICU) at a tertiary care public facility from 1 January 2011 to 8 August 2013. Data from 254 adult patients staying in the ICU for 48 hours or more were analysed. The experimental group (n = 127) had access to dental treatment provided by a dentist four to five times a week, in addition to routine oral hygiene, whereas the control group (n = 127) had access only to routine oral hygiene, including topical application of chlorhexidine, provided by the ICU nursing staff...
May 18, 2018: International Dental Journal
https://www.readbyqxmd.com/read/29777288/time-shifting-effects-of-methylphenidate-on-daily-rhythms-in-the-diurnal-rodent-arvicanthis-ansorgei
#3
Jorge Mendoza, Hester C van Diepen, Rob Rodrigues Pereira, Johanna H Meijer
People suffering of attention-deficit/hyperactivity disorder (ADHD) and treated with the psychostimulant methylphenidate (MPH) show sleep-wake cycle and daily rhythm alterations despite the beneficial effects of MPH on behavioral symptoms (i.e., hyperactivity, attention). In nocturnal rodents (i.e., mice), chronic exposure to MPH alters the neural activity of the circadian clock in the suprachiasmatic nucleus (SCN), behavioral rhythms, and the sleep-wake cycle. Here, we studied the effects of MPH on daily rhythms of behavior and body temperature of the diurnal rodent Arvicanthis ansorgei...
May 18, 2018: Psychopharmacology
https://www.readbyqxmd.com/read/29776539/near-infrared-emission-spectroscopy-for-rapid-compositional-analysis-of-portland-cements
#4
Jicarla Portela Rebouças, Jarbas José Rodrigues Rohwedder, Celio Pasquini
Near infrared emission spectroscopy (NIRES) has been investigated to yield a new analytical method for determination of CaO, SiO2 , Al2 O3 , Fe2 O3 , MgO, and SO3 in Portland cement samples. The analyses were accomplished by correlation of the second derivative NIRES spectra with reference elemental analyses made by X-ray Fluorescence (XRF), using Partial Least Square (PLS) regression models. Four different types of cements (type II, III, IV and V) were included in the models. The results show RMSEP from 0...
September 18, 2018: Analytica Chimica Acta
https://www.readbyqxmd.com/read/29775373/axion-plasmon-polaritons-in-strongly-magnetized-plasmas
#5
H Terças, J D Rodrigues, J T Mendonça
Axions are hypothetical particles related to the violation of the charge-parity symmetry within the strong sector of the standard model, being one of the most prone candidates for dark matter. Multiple attempts to prove their existence are currently performed in different physical systems. Here, we predict that axions may couple to the electrostatic (Langmuir) modes of a strongly magnetized plasma, and show that a new quasiparticle can be defined, the axion-plasmon polariton. The excitation of axions can be inferred from the pronounced modification of the dispersion relation of the Langmuir waves, a feature that we estimate to be accessible in state-of-the-art plasma-based experiments...
May 4, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29774866/femoral-neck-stress-fracture-in-a-young-female-recruit-case-report
#6
Hélder Fonte, Ricardo Rodrigues-Pinto
INTRODUCTION: Femoral neck stress fractures are uncommon and depending on their location, can be at high risk for non-union and significant morbidity.  Their prevalence is higher among runners and military recruits, and women seem to be at higher risk. METHODS: A 27-year-old female, who was enrolled in military recruit, reported left side groin pain after a strenuous running exercise. Due to persistent pain an X-Ray was ordered, which revealed no signs of acute lesions...
2018: SICOT-J
https://www.readbyqxmd.com/read/29774211/3d-printed-e-tongue
#7
Gabriel Gaál, Tatiana A da Silva, Vladimir Gaál, Rafael C Hensel, Lucas R Amaral, Varlei Rodrigues, Antonio Riul
Nowadays, one of the biggest issues addressed to electronic sensor fabrication is the build-up of efficient electrodes as an alternative way to the expensive, complex and multistage processes required by traditional techniques. Printed electronics arises as an interesting alternative to fulfill this task due to the simplicity and speed to stamp electrodes on various surfaces. Within this context, the Fused Deposition Modeling 3D printing is an emerging, cost-effective and alternative technology to fabricate complex structures that potentiates several fields with more creative ideas and new materials for a rapid prototyping of devices...
2018: Frontiers in Chemistry
https://www.readbyqxmd.com/read/29774070/role-of-extracellular-vesicles-in-viral-and-bacterial-infections-pathogenesis-diagnostics-and-therapeutics
#8
REVIEW
Meryl Rodrigues, Jia Fan, Christopher Lyon, Meihua Wan, Ye Hu
Extracellular vesicles (EVs), or exosomes, are nanovesicles of endocytic origin that carry host and pathogen-derived protein, nucleic acid, and lipid cargos. They are secreted by most cell types and play important roles in normal cell-to-cell communications but can also spread pathogen- and host-derived molecules during infections to alter immune responses and pathophysiological processes. New research is beginning to decipher how EVs influence viral and bacterial pathogenesis. In this review, we will describe how EVs influence viral and bacterial pathogenesis by spreading pathogen-derived factors and how they can promote and inhibit the immune response to these pathogens...
2018: Theranostics
https://www.readbyqxmd.com/read/29774048/the-complications-associated-with-resuscitative-endovascular-balloon-occlusion-of-the-aorta-reboa
#9
REVIEW
Marcelo A F Ribeiro Junior, Celia Y D Feng, Alexander T M Nguyen, Vinicius C Rodrigues, Giovana E K Bechara, Raíssa Reis de-Moura, Megan Brenner
Non-compressible torso hemorrhage (NCTH) remains a significant cause of morbidity and mortality in the field of trauma and emergency medicine. In recent times, there has been a resurgence in the adoption of Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA) for patients who present with NCTH. Like all medical procedures, there are benefits and risks associated with the REBOA technique. However, in the case of REBOA, these complications are not unanimously agreed upon with varying viewpoints and studies...
2018: World Journal of Emergency Surgery: WJES
https://www.readbyqxmd.com/read/29774022/acute-zika-virus-infection-in-an-endemic-area-shows-modest-proinflammatory-systemic-immunoactivation-and-cytokine-symptom-associations
#10
Jéssica Barletto de Sousa Barros, Paulo Alex Neves da Silva, Rosemary de Carvalho Rocha Koga, Patrícia Gonzalez-Dias, José Rodrigues Carmo Filho, Patrícia Resende Alo Nagib, Verônica Coelho, Helder I Nakaya, Simone Gonçalves Fonseca, Irmtraut Araci Hoffmann Pfrimer
An early immune response to Zika virus (ZIKV) infection may determine its clinical manifestation and outcome, including neurological effects. However, low-grade and transient viremia limits the prompt diagnosis of acute ZIKV infection. We have investigated the plasma cytokine, chemokine, and growth factor profiles of 36 individuals from an endemic area displaying different symptoms such as exanthema, headache, myalgia, arthralgia, fever, hyperemia, swelling, itching, and nausea during early-phase infection...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29773818/predicting-transmission-blocking-potential-of-anti-malarial-compounds-in-the-mosquito-feeding-assay-using-plasmodium-falciparum-male-gamete-inhibition-assay
#11
Gonzalo Colmenarejo, Sonia Lozano, Carolina González-Cortés, David Calvo, Juliana Sanchez-Garcia, Jesús-Luís Presa Matilla, Didier Leroy, Janneth Rodrigues
Plasmodium falciparum Standard Membrane Feeding Assay (PfSMFA) is the current gold standard mosquito based confirmatory transmission blocking (TrB) assay for human malaria. However, owing to its complexity only selected gametocytocidal molecules are progressed into SMFA. Predictive tools for evaluation of TrB behavior of compounds in SMFA would be extremely beneficial, but lack of substantially large data sets from many mosquito feeds preempts the ability to perform correlations between outcomes from in vitro assays and SMFA...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29773189/effects-of-furosemide-administration-on-the-concentration-of-essential-and-toxic-elements-in-wistar-rats-by-inductively-coupled-plasma-optical-emission-spectrometry
#12
Luiz Raimundo Seneterri Silva Rodrigues Dos Santos, Aníbal de Freitas Santos, Maria das Graças Andrade Korn
Furosemide can interfere with the metabolism of chemical elements, changing their levels in several tissues, thus causing imbalance. In this study, inductively coupled plasma optical emission spectrometry (ICP OES) was used for multi-element analysis (Cd, Cu, Fe, Mg, Pb, Se and Zn) after microwave-assisted digestion, to evaluate the effect of furosemide (loop diuretic) on the composition of these essential and toxic elements in biological samples (liver, kidney, heart, lung and serum) of Wistar rats. Male and female Wistar rats (n = 40, 180-350 g) were randomly divided into 2 groups (n = 20/group)...
July 2018: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29773145/pathological-and-molecular-characterization-of-systemic-isosporosis-atoxoplasmosis-in-captive-green-winged-saltator-saltator-similis
#13
Ayisa Rodrigues de Oliveira, Tayse Domingues de Souza, Juliana P S Mol, Mayra Cunha Flecher, Emy Hiura, Renato Lima Santos
Systemic isosporosis, also called atoxoplasmosis or visceral coccidiosis, is a disease that affects birds in general. Pathogenesis of systemic isosporosis and its etiologic agent have not been well characterized, but taxonomically Atoxoplasma is currently considered a junior objective synonym of Isospora. The present report aimed to describe pathological and molecular findings of systemic isosporosis in captive green-winged saltators (Saltator similis) from the State of Espírito Santo, Brazil. In a commercial breeding facility eleven birds with two to nine months of age died from 2015 to 2016...
May 15, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29772343/brain-stimulation-differentially-modulates-nociception-and-inflammation-in-aversive-and-non-aversive-behavioural-conditions
#14
G S Bassi, A Kanashiro, G J Rodrigues, F Q Cunha, N C Coimbra, L Ulloa
Inflammation and pain are major clinical burdens contributing to multiple disorders and limiting the quality of life of patients. We previously reported that brain electrical stimulation can attenuate joint inflammation in experimental arthritis. Here, we report that non-aversive electrical stimulation of the locus coeruleus (LC), the paraventricular hypothalamic nucleus (PVN) or the ventrolateral column of the periaqueductal grey matter (vlPAG) decreases thermal pain sensitivity, knee inflammation and synovial neutrophilic infiltration in ratswith intra-articular zymosan...
May 14, 2018: Neuroscience
https://www.readbyqxmd.com/read/29772095/effect-of-specific-exercise-strategy-on-strength-and-proprioception-in-volleyball-players-with-infraspinatus-muscle-atrophy
#15
José Inácio Salles, Victor Rodrigues Amaral Cossich, João Matheus Guimarães, Geraldo Motta Filho, Dylan Morrissey
Infraspinatus muscle atrophy is common in professional volleyball players, but it is unclear whether commonly observed strength and proprioception deficits can be reversed with training. Fifty-four participants were recruited into an infraspinatus atrophy group (IAG, n = 18) and a non-atrophy group (NAG, n=18) of elite volleyballers plus a healthy non-athletic control group (CG, n = 18). IAG were trained with a progressive, specific shoulder external rotator strengthening routine for 32 sessions over 8 weeks...
May 17, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29771925/in-vitro-and-in-vivo-biological-performance-of-porous-ti-alloys-prepared-by-powder-metallurgy
#16
Renata Falchete do Prado, Gabriela Campos Esteves, Evelyn Luzia De Souza Santos, Daiane Acácia Griti Bueno, Carlos Alberto Alves Cairo, Luis Gustavo Oliveira De Vasconcellos, Renata Silveira Sagnori, Fernanda Bastos Pereira Tessarin, Felipe Eduardo Oliveira, Luciane Dias De Oliveira, Maria Fernanda Lima Villaça-Carvalho, Vinicius André Rodrigues Henriques, Yasmin Rodarte Carvalho, Luana Marotta Reis De Vasconcellos
Titanium (Ti) and Ti-6 Aluminium-4 Vanadium alloys are the most common materials in implants composition but β type alloys are promising biomaterials because they present better mechanical properties. Besides the composition of biomaterial, many factors influence the performance of the biomaterial. For example, porous surface may modify the functional cellular response and accelerate osseointegration. This paper presents in vitro and in vivo evaluations of powder metallurgy-processed porous samples composed by different titanium alloys and pure Ti, aiming to show their potential for biomedical applications...
2018: PloS One
https://www.readbyqxmd.com/read/29771840/combined-access-for-the-treatment-of-medial-orbital-wall-fracture-subciliary-and-upper-eyelid-sulcus-incisions
#17
Mariana Alcantara Rodrigues de Moraes, João Pedro Rocha Biló, Max Domingues Pereira
The present study presents a new surgical approach to treat medial orbital wall fractures, that is, the combined transcutaneous access through subciliary and upper eyelid sulcus incisions. The study performed the retrospective analysis of medical records belonging to 14 consecutive patients with medial orbital wall fracture, who were treated in the Plastic Surgery Division at Federal University of São Paulo, from 2005 to 2013, through the combination of subciliary and upper eyelid sulcus incisions to access the fracture foci...
May 15, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29771270/effect-of-conversion-from-calcineurin-inhibitors-to-everolimus-on-hepatitis-c-viremia-in-adult-kidney-transplant-recipients
#18
Larissa Sgaria Pacheco, Valter Duro Garcia, Ronivan Luis Dal Prá, Bruna Doleys Cardoso, Mariana Ferras Rodrigues, Helen Kris Zanetti, Gisele Meinerz, Jorge Neumann, Diego Gnatta, Elizete Keitel
INTRODUCTION: Currently, there is no specific immunosuppressive protocol for hepatitis C (HCV)-positive renal transplants recipients. Thus, the aim of this study was to evaluate the conversion effect to everolimus (EVR) on HCV in adult kidney recipients. METHOD: This is an exploratory single-center, prospective, randomized, open label controlled trial with renal allograft recipients with HCV-positive serology. Participants were randomized for conversion to EVR or maintenance of calcineurin inhibitors...
May 14, 2018: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/29770731/antibiotics-mineralization-by-electrochemical-and-uv-based-hybrid-processes-evaluation-of-the-synergistic-effect
#19
Salatiel Wohlmuth da Silva, Alan Nelson Arenhart Heberle, Alexia Pereira Santos, Marco Antônio Siqueira Rodrigues, Valentín Pérez-Herranz, Andréa Moura Bernardes
Antibiotics are not efficiently removed in conventional wastewater treatments. In fact, different Advanced Oxidation Process (AOPs), including ozone, peroxide, UV radiation, among others, are being investigated in the elimination of microcontaminants. Most of AOPs proved to be efficient on the degradation of antibiotics, but the mineralization is on the one hand not evaluated or on the other hand not high. At this work, the UV-based hybrid process, namely Photo-assisted electrochemical Oxidation (PEO), was applied aiming the mineralization of microcontaminants such as the antibiotics Amoxicillin (AMX), Norfloxacin (NOR) and Azithromycin (AZI)...
May 17, 2018: Environmental Technology
https://www.readbyqxmd.com/read/29769820/multivariate-relationships-among-morphology-fitness-and-motor-coordination-in-prepubertal-girls
#20
Leonardo G O Luz, Manuel J Coelho-E-Silva, João P Duarte, João Valente-Dos-Santos, Aristides Machado-Rodrigues, André Seabra, Bruno C M Carmo, Roel Vaeyens, Renaat M Philippaerts, Sean P Cumming, Robert M Malina
Motor coordination and physical fitness are multidimensional concepts which cannot be reduced to a single variable. This study evaluated multivariate relationships among morphology, physical fitness and motor coordination in 74 pre-pubertal girls 8.0-8.9 years of age. Data included body dimensions, eight fitness items and four motor coordination tasks (KTK battery). Maturity status was estimated as percentage of predicted mature stature attained at the time of observation. Canonical correlation analysis was used to examine the relationships between multivariate domains...
June 2018: Journal of Sports Science & Medicine
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