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https://www.readbyqxmd.com/read/27925440/enhancing-bioactive-properties-of-silk-fibroin-with-diatom-particles-for-bone-tissue-engineering-applications
#1
Thi Duy Hanh Le, Volha Liaudanskaya, Walter Bonani, Claudio Migliaresi, Antonella Motta
Many studies have highlighted the role of silicon in human bone formation and maintenance. Silicon, in fact, is considered to nucleate the precipitation of hydroxyapatite and to reduce the bone resorption. For this reason, we have combined silk fibroin with silicon releasing diatom particles, as potential material for bone tissue engineering applications. Sponges of fibroin loaded with different amounts and sizes of diatom particles were prepared by solvent casting-particulate leaching method, and their morphology, porosity and mechanical properties were evaluated...
December 7, 2016: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/27921068/voltage-sensitive-dye-imaging-of-mouse-neocortex-during-a-whisker-detection-task
#2
Alexandros Kyriakatos, Vijay Sadashivaiah, Yifei Zhang, Alessandro Motta, Matthieu Auffret, Carl C H Petersen
Sensorimotor processing occurs in a highly distributed manner in the mammalian neocortex. The spatiotemporal dynamics of electrical activity in the dorsal mouse neocortex can be imaged using voltage-sensitive dyes (VSDs) with near-millisecond temporal resolution and [Formula: see text] spatial resolution. Here, we trained mice to lick a water reward spout after a 1-ms deflection of the C2 whisker, and we imaged cortical dynamics during task execution with VSD RH1691. Responses to whisker deflection were highly dynamic and spatially highly distributed, exhibiting high variability from trial to trial in amplitude and spatiotemporal dynamics...
July 2017: Neurophotonics
https://www.readbyqxmd.com/read/27920933/crystal-structure-of-1-3-bis-3-tert-butyl-2-hy-droxy-5-methyl-benz-yl-1-3-diazinan-5-ol-monohydrate
#3
Augusto Rivera, Ingrid Miranda-Carvajal, Jaime Ríos-Motta, Michael Bolte
In the title hydrate, C28H42N2O3·H2O, the central 1,3-diazinan-5-ol ring adopts a chair conformation with the two benzyl substituents equatorial and the lone pairs of the N atoms axial. The dihedral angle between the aromatic rings is 19.68 (38)°. There are two intra-molecular O-H⋯N hydrogen bonds, each generating an S(6) ring motif. In the crystal, classical O-H⋯O hydrogen bonds connect the 1,3-diazinane and water mol-ecules into columns extending along the b axis. The crystal structure was refined as a two-component twin with a fractional contribution to the minor domain of 0...
September 1, 2016: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/27913076/biofilm-production-and-beta-lactamic-resistance-in-brazilian-staphylococcus-aureus-isolates-from-bovine-mastitis
#4
Viviane Figueira Marques, Cássia Couto da Motta, Bianca da Silva Soares, Dayanne Araújo de Melo, Shana de Mattos de Oliveira Coelho, Irene da Silva Coelho, Helene Santos Barbosa, Miliane Moreira Soares de Souza
Staphylococcus spp. play an important role in the etiology of bovine mastitis. Staphylococcus aureus is considered the most relevant species due to the production of virulence factors such as slime, which is required for biofilm formation. This study aimed to evaluate biofilm production and its possible relation to beta-lactamic resistance in 20 S. aureus isolates from bovine mastitic milk. The isolates were characterized by pheno-genotypic and MALDI TOF-MS assays and tested for genes such as icaA, icaD, bap, agr RNAIII, agr I, agr II, agr III, and agr IV, which are related to slime production and its regulation...
October 18, 2016: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/27895643/azithromycin-attenuates-pseudomonas-induced-lung-inflammation-by-targeting-bacterial-proteins-secreted-in-the-cultured-medium
#5
Teresinha Leal, Gabriella Bergamini, François Huaux, Nadtha Panin, Sabrina Noel, Barbara Dhooghe, Jeremy B Haaf, Pierluigi Mauri, Sara Motta, Dario Di Silvestre, Paola Melotti, Claudio Sorio
BACKGROUND: Pseudomonas aeruginosa airway infections are a major cause of morbidity and mortality in patients with cystic fibrosis (CF). Azithromycin improves the related clinical outcomes, but its mechanisms of action remain poorly understood. We tested the hypothesis that azithromycin downregulates P. aeruginosa-induced pro-inflammatory responses by modifying release of bacterial proteins. METHODS: We monitored inflammatory markers in lungs of CF mutant mice and their littermate controls in response to conditioned media (CM) collected from the reference P...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27894855/galloylquinic-acid-derivatives-from-copaifera-langsdorffii-leaves-display-gastroprotective-activity
#6
Erick V S Motta, Marivane Lemos, Juliana C Costa, Vilmar C Banderó-Filho, Astrid Sasse, Helen Sheridan, Jairo K Bastos
Nine new methylated galloylquinic acids were isolated from an aqueous fraction of Copaifera langsdorffii (Fabaceae-Caesalpinioideae) leaf hydroalcoholic extract (3-8, 11, 12, and 14), along with three known methylated galloylquinic acids (1, 2, and 15) and four galloylquinic acids (9, 10, 13, and 16). These compounds were characterized by nuclear magnetic resonance spectroscopy and mass spectrometry. They were further tested in a gastroprotection assay (Ethanol-HCl induced ulcer model in mice), in which all of them significantly reduced the total lesion area, and increased the cure ratio in comparison with pantoprazole...
November 25, 2016: Chemico-biological Interactions
https://www.readbyqxmd.com/read/27892514/gwas-study-using-dna-pooling-strategy-identifies-association-of-variant-rs4910623-in-or52b4-gene-with-anti-vegf-treatment-response-in-age-related-macular-degeneration
#7
Moeen Riaz, Laura Lorés-Motta, Andrea J Richardson, Yi Lu, Grant Montgomery, Amer Omar, Robert K Koenekoop, John Chen, Philipp Muether, Lebriz Altay, Tina Schick, Sascha Fauser, Dzenita Smailhodzic, Freekje van Asten, Eiko K de Jong, Carel B Hoyng, Kathryn P Burdon, Stuart MacGregor, Robyn H Guymer, Anneke I den Hollander, Paul N Baird
Pooled DNA based GWAS to determine genetic association of SNPs with visual acuity (VA) outcome in anti-vascular endothelial growth factor (anti-VEGF) treated neovascular age-related macular degeneration (nAMD) patients. We performed pooled DNA based GWAS on 285 anti-VEGF treated nAMD patients using high density Illumina 4.3 M array. Primary outcome was change in VA in Early Treatment Diabetic Retinopathy Study (ETDRS) letters after 6 months of anti-VEGF treatment (patients who lost ≥5 ETDRS letters classified as non-responders and all remaining classified as responders)...
November 28, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27889037/pathology-of-anal-cancer
#8
REVIEW
Paulo M Hoff, Renata Coudry, Camila Motta Venchiarutti Moniz
Anal canal cancer is rather an uncommon disease but its incidence is increasing. Squamous cell carcinoma (SCC) is the most frequent primary anal neoplasm and can encompass a variety of morphologies. HPV infection has a key role in precancerous lesions and cancer development by the production of E6 and E7 oncoproteins. Anal squamous precancerous lesions are now classified according to the same criteria and terminology as their cervical counterparts. The p16 expression by immunohistochemistry is a surrogate marker for human papilloma virus (HPV)...
January 2017: Surgical Oncology Clinics of North America
https://www.readbyqxmd.com/read/27888473/nasal-mucosa-healing-after-endoscopic-sinus-surgery-in-chronic-rhinosinusitis-of-elderly-patients-role-of-topic-alpha-tocopherol-acetate
#9
Domenico Testa, Giuseppina Marcuccio, Giorgio Panin, Andrea Bianco, Domenico Tafuri, Francesco Zappoli Thyrion, Michele Nunziata, Pasquale Piombino, Germano Guerra, Gaetano Motta
BACKGROUND: Chronic rhinosinusitis (CRS) in European country ranges in elderly patients from 4.5 to 12% of population and has a significant effect on quality of life. In these patients, rhinosinusitis is linked to immune functions changes with age and to mucosal paraphysiological alterations such as crusting formations with atrophic epithelium, variations of nasal airflow and modifications of the mucociliary clearance. Failure of medical treatments leads to surgery in patients with persistent symptoms and radiographic signs of CRS...
November 25, 2016: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/27866819/endocrinology-of-human-female-sexuality-mating-and-reproductive-behavior
#10
REVIEW
Natalie V Motta-Mena, David A Puts
Hormones orchestrate and coordinate human female sexual development, sexuality, and reproduction in relation to three types of phenotypic changes: life history transitions such as puberty and childbirth, responses to contextual factors such as caloric intake and stress, and cyclical patterns such as the ovulatory cycle. Here, we review the endocrinology underlying women's reproductive phenotypes, including sexual orientation and gender identity, mate preferences, competition for mates, sex drive, and maternal behavior...
November 17, 2016: Hormones and Behavior
https://www.readbyqxmd.com/read/27865083/-shared-decision-making-a-scoping-review
#11
Milena Giovanna Guarinoni, Lucia Dignani, Paolo Carlo Motta
AIM: This research aimed to explore the literature regarding the model of the Shared Decision Making (SDM) in the field of nursing. METHOD: A scoping review was conducted. The electronic literature research was made on Medline, CINAHL, The Cochrane Library, Google Scholar, using a combination of key words: "Decision Making", "Shared Decision Making", "Nursing", "Nursing Patient relationship". The review was carried out following the Levac model. RESULTS: 29 studies were included, in a time range between 1972 and 2015...
July 2016: Professioni Infermieristiche
https://www.readbyqxmd.com/read/27862296/dna-methylation-changes-in-mexican-children-exposed-to-arsenic-from-two-historic-mining-areas-in-san-luis-potos%C3%A3
#12
Jorge Alejandro Alegría-Torres, Leticia Carrizales-Yánez, Fernando Díaz-Barriga, Fernando Rosso-Camacho, Valeria Motta, Letizia Tarantini, Valentina Bollati
Arsenic is a carcinogen and epimutagen that threatens the health of exposed populations worldwide. In this study, we examined the methylation status of Alu and long interspersed nucleotide elements (LINE-1) and their association with levels of urinary arsenic in 84 Mexican children between 6 and 12 years old from two historic mining areas in the State of San Luis Potosí, Mexico. Urinary arsenic levels were determined by atomic absorption spectrophotometry and DNA methylation analysis was performed in peripheral blood leukocytes by bisulfite-pyrosequencing...
December 2016: Environmental and Molecular Mutagenesis
https://www.readbyqxmd.com/read/27857257/the-moments-that-drive-your-journey
#13
Dominique Motta
Nurses provide patients and their families will equal respect, care, and advocacy. However, there are moments with special patients that sink right into our hearts and keep us going. You know the ones! Those little moments you reflect on when the work feels overwhelming or when you don't think you can possibly make it through another crazy 12-hour hospital shift. Maybe a patient made your day and thanked you for going the extra mile. Or maybe they gave you a coloring book page they colored especially for you...
December 1, 2016: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/27849239/importance-of-the-use-of-protocols-for-the-management-of-analgesia-and-sedation-in-pediatric-intensive-care-unit
#14
Emiliana Motta, Michele Luglio, Artur Figueiredo Delgado, Werther Brunow de Carvalho
Introduction: Analgesia and sedation are essential elements in patient care in the intensive care unit (ICU), in order to promote the control of pain, anxiety and agitation, prevent the loss of devices, accidental extubation, and improve the synchrony of the patient with mechanical ventilation. However, excess of these medications leads to rise in morbidity and mortality. The ideal management will depend on the adoption of clinical and pharmacological measures, guided by scales and protocols...
September 2016: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/27842532/silybin-supplementation-during-hcv-therapy-with-pegylated-interferon-%C3%AE-plus-ribavirin-reduces-depression-and-anxiety-and-increases-work-ability
#15
Giulia Malaguarnera, Gaetano Bertino, Giuseppe Chisari, Massimo Motta, Michele Vecchio, Marco Vacante, Filippo Caraci, Carmela Greco, Filippo Drago, Giuseppe Nunnari, Michele Malaguarnera
BACKGROUND: Hepatitis C virus infection and interferon treatment are often associated with anxiety, depressive symptoms and poor health-related quality of life. To evaluate the Silybin-vitamin E-phospholipids complex effect on work ability and whether health related factors (anxiety and depression) were associated with work ability in subjects with chronic hepatitis C treated with Pegylated-Interferon-α2b (Peg-IFN) and Ribavirin (RBV). METHODS: Thirty-one patients (Group A) with chronic hepatitis and other 31 subjects in Group B were recruited in a randomized, prospective, placebo controlled, double blind clinical trial...
November 15, 2016: BMC Psychiatry
https://www.readbyqxmd.com/read/27829166/the-role-of-the-frontal-aslant-tract-and-premotor-connections-in-visually-guided-hand-movements
#16
Sanja Budisavljevic, Flavio Dell'Acqua, Vera Djordjilovic, Diego Miotto, Raffaella Motta, Umberto Castiello
Functional neuroimaging and brain lesion studies demonstrate that secondary motor areas of the frontal lobe play a crucial role in the cortical control of hand movements. However, no study so far has examined frontal white matter connections of the secondary motor network, namely the frontal aslant tract, connecting the supplementary motor complex and the posterior inferior frontal regions, and the U-shaped dorsal and ventral premotor fibers running through the middle frontal gyrus. The aim of the current study is to explore the involvement of the short frontal lobe connections in reaching and reach-to-grasp movements in 32 right-handed healthy subjects by correlating tractography data based on spherical deconvolution approach with kinematical data...
November 6, 2016: NeuroImage
https://www.readbyqxmd.com/read/27826399/contact-karate-promotes-post-exercise-hypotension-in-young-adult-males
#17
Marcelo Magalhaes Sales, Caio Victor de Sousa, Wellington Barbosa Sampaio, Carlos Ernesto, Rodrigo Alberto Vieira Browne, Jose Fernando Vila Nova de Moraes, Daisy Motta-Santos, Milton Rocha Moraes, John Eugene Lewis, Herbert Gustavo Simões, Francisco Martins da Silva
BACKGROUND: Worldwide, systemic arterial hypertension is a leading cause of death and non-communicable cardiovascular disease. A major factor contributing to this disease is a sedentary lifestyle. However, physical exercise, such as martial arts, may be an option for blood pressure (BP) control. The magnitude of post-exercise hypotension is associated with a prolonged decrease in BP in normotensive and hypertensive individuals. OBJECTIVES: The present study aimed to verify the effects of a Contact Karate (CK) session on BP responses during a post-exercise recovery period in young adults...
September 2016: Asian Journal of Sports Medicine
https://www.readbyqxmd.com/read/27825341/essential-oils-in-vitro-activity-against-leishmania-amazonensis-cytotoxicity-and-chemical-composition
#18
Milene Aparecida Andrade, Clênia Dos Santos Azevedo, Flávia Nader Motta, Maria Lucília Dos Santos, Camila Lasse Silva, Jaime Martins de Santana, Izabela M D Bastos
BACKGROUND: The current chemotherapy for cutaneous leishmaniosis (CL) has a series of drug limitations such as toxic side effects, long duration, high costs and drug resistance, which requires the development of new drugs or effective alternatives to the CL treatment. Essential oils (EOs) are complex mixtures of secondary metabolites from various plants. It has been shown that several EOs, or their constituents, have inhibitory activity against protozoa. Thus, this study aims to evaluate the biological activity of different essential oils (EOs) on Leishmania (L...
November 8, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27824062/transcriptome-analysis-uncovers-key-regulatory-and-metabolic-aspects-of-soybean-embryonic-axes-during-germination
#19
Daniel Bellieny-Rabelo, Eduardo Alves Gamosa De Oliveira, Elaneda Silva Ribeiro, Evenilton Pessoa Costa, Antônia Elenir Amâncio Oliveira, Thiago Motta Venancio
Soybean (Glycine max) is a major legume crop worldwide, providing a critical source of protein and oil. The release of the soybean genome fuelled several transcriptome projects comprising multiple developmental stages and environmental conditions. Nevertheless, the global transcriptional patterns of embryonic axes during germination remain unknown. Here we report the analysis of ~1.58 billion RNA-Seq reads from soybean embryonic axes at five germination stages. Our results support the early activation of processes that are critical for germination, such as glycolysis, Krebs cycle and cell wall remodelling...
November 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27822883/lipoprotein-a-in-patients-with-hepatocellular-carcinoma-and-portal-vein-thrombosis
#20
Giulia Malaguarnera, Vito Emanuele Catania, Antonio Francaviglia, Michele Malaguarnera, Filippo Drago, Massimo Motta, Saverio Latteri
BACKGROUND: The mechanism for hypercoagulability in malignancy is not entirely understood. Although several studies report contrasting finding about the link between elevated plasma levels of the lipoprotein(a) [Lp(a)] and the possible recurrence of venous thromboembolism, we perform a study to evaluate the impact of the Lp(a) in the development of portal vein thromboembolism (PVT) in patients with HCC. METHODS: We compared 44 PVT patients with 50 healthy subjects and 50 HCC patients...
November 7, 2016: Aging Clinical and Experimental Research
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