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https://www.readbyqxmd.com/read/28110184/structural-analysis-of-binding-functionality-of-folic-acid-peg-dendrimers-against-folate-receptor
#1
Diana Sampogna-Mireles, Ingrid D Araya-Durán, Valeria Márquez-Miranda, Jesús A Valencia-Gallegos, Fernando D González-Nilo
Dendrimers functionalized with folic acid (FA) are drug delivery systems that can selectively target cancer cells with folate receptors (FR-α) overexpression. Incorporation of polyethylene glycol (PEG) can enhance dendrimers solubility and pharmacokinetics, but ligand-receptor binding must not be affected. In this work we characterized, at atomic level, the binding functionality of conventional site-specific dendrimers conjugated with FA with PEG 750 or PEG 3350 as a linker. After Molecular Dynamics simulation, we observed that both PEG's did not interfere over ligand-receptor binding functionality...
January 6, 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28110138/contributions-to-ultrasound-monitoring-of-the-process-of-milk-curdling
#2
Antonio Jiménez, Montaña Rufo, Jesús M Paniagua, Abel T Crespo, M Patricia Guerrero, M José Riballo
Ultrasound evaluation permits the state of milk being curdled to be determined quickly and cheaply, thus satisfying the demands faced by today's dairy product producers. This paper describes the non-invasive ultrasonic method of in situ monitoring the changing physical properties of milk during the renneting process. The basic objectives of the study were, on the one hand, to confirm the usefulness of conventional non-destructive ultrasonic testing (time-of-flight and attenuation of the ultrasound waves) in monitoring the process in the case of ewe's milk, and, on the other, to include other ultrasound parameters which have not previously been considered in studies on this topic, in particular, parameters provided by the Fast Fourier Transform technique...
January 10, 2017: Ultrasonics
https://www.readbyqxmd.com/read/28110054/slicing-silicone-neonatal-vascular-catheter-tips-improves-colonization-detection-by-the-roll-plate-technique
#3
María Guembe, Pablo Martín-Rabadán, Raquel Cruces, María Jesús Pérez Granda, Emilio Bouza
OBJECTIVE: Silicone neonatal peripherally inserted central catheters (SN-PICCs) are a common cause of catheter-related bloodstream infection (C-RBSI) in neonates. Our objective was to compare the yield of traditional roll-plate technique (TRP), roll-plate after slicing (RPS), and sonication after slicing (SS) for the detection of colonization and C-RBSI in SN-PICCs. METHODS: We prospectively cultured tips from SN-PICCs withdrawn from pediatric patients admitted to our institution with suspicion of infection...
January 18, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28109949/positional-isomers-of-bispyridine-benzene-derivatives-induce-efficacy-changes-on-mglu5-negative-allosteric-modulation
#4
Xavier Gómez-Santacana, James A R Dalton, Xavier Rovira, Jean Philippe Pin, Cyril Goudet, Pau Gorostiza, Jesús Giraldo, Amadeu Llebaria
Modulation of metabotropic glutamate receptor 5 (mGlu5) with partial allosteric antagonists has received increased interest due to their favourable in vivo activity profiles compared to the unfavourable side-effects of full inverse agonists. Here we report on a series of bispyridine benzene derivatives with a functional molecular switch affecting antagonistic efficacy, shifting from inverse agonism to partial antagonism with only a single change in the substitution pattern of the benzene ring. These efficacy changes are explained through computational docking, revealing two different receptor conformations of different energetic stability and different positional isomer binding preferences...
January 12, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28109699/associations-among-resilience-posttraumatic-growth-anxiety-and-depression-and-their-prediction-from-stress-in-newly-diagnosed-people-living-with-hiv
#5
Helena Garrido-Hernansaiz, Jesús Alonso-Tapia
No abstract text is available yet for this article.
January 3, 2017: Journal of the Association of Nurses in AIDS Care: JANAC
https://www.readbyqxmd.com/read/28109621/-the-latest-in-paediatric-resuscitation-recommendations
#6
Jesús López-Herce, Antonio Rodríguez, Angel Carrillo, Nieves de Lucas, Custodio Calvo, Eva Civantos, Eva Suárez, Sara Pons, Ignacio Manrique
Cardiac arrest has a high mortality in children. To improve the performance of cardiopulmonary resuscitation, it is essential to disseminate the international recommendations and the training of health professionals and the general population in resuscitation. This article summarises the 2015 European Paediatric Cardiopulmonary Resuscitation recommendations, which are based on a review of the advances in cardiopulmonary resuscitation and consensus in the science and treatment by the International Council on Resuscitation...
January 18, 2017: Anales de Pediatría: Publicación Oficial de la Asociación Española de Pediatría (A.E.P.)
https://www.readbyqxmd.com/read/28109200/arcobacter-lekithochrous-sp-nov-a-new-species-isolated-from-a-molluscan-hatchery-in-norway
#7
Ana L Diéguez, Sabela Balboa, Thorolf Magnesen, Jesús L Romalde
Four bacterial strains, LFT 1.7T, LT2C 2.5, LT4C 2.8 and TM 4.6, were isolated from Great scallop (Pecten maximus) larvae and tank seawater in a Norwegian hatchery and characterized by a polyphasic approach including phenotypic, chemotaxonomic and genomic traits. All of them were Gram-negative and motile rods, oxidase and catalase positive and required sea salts for growth. Major fatty acids present were Summed Feature 3 (C16:1ω7c/C16:1 ω6c), Summed Feature 8 (C18:1ω7c or C18:1 ω6c), C16:0, C14:0, Summed Feature 2 (C14:0 3OH/C16:1 iso I), C12:0 3OH and C12:0...
January 19, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28108594/parental-perceptions-of-barriers-to-active-commuting-to-school-in-spanish-children-and-adolescents
#8
Francisco Javier Huertas-Delgado, Manuel Herrador-Colmenero, Emilio Villa-González, María Jesús Aranda-Balboa, María Victoria Cáceres, Sandra Mandic, Palma Chillón
BACKGROUND: Understanding parental barriers is crucial to promote active commuting to school since the parental perceptions influence how young people commute. This study examined parental barriers to active commuting to school among Spanish children and adolescents, and their association with their gender and the usual mode of commuting. METHODS: Parents of children (n = 628) and parents of adolescents (n = 151) from Granada (Spain) completed a paper-based questionnaire about perceived parental barriers to active commuting to school and mode of commuting...
January 19, 2017: European Journal of Public Health
https://www.readbyqxmd.com/read/28108518/a-transposon-based-analysis-reveals-rasa1-is-involved-in-triple-negative-breast-cancer
#9
Cristian Suárez-Cabrera, Rita M Quintana, Ana Bravo, M LLanos Casanova, Angustias Page, Josefa P Alameda, Jesus M Paramio, Alicia Maroto, Javier Salamanca, Adam J Dupuy, Angel Ramírez, Manuel Navarro
RAS genes are mutated in 20% of human tumors, but these mutations are very rare in breast cancer. Here we used a mouse model to generate tumors upon activation of a mutagenic T2Onc2 transposon via expression of a transposase driven by the keratin K5 promoter in a p53+/- background. These animals mainly developed mammary tumors, most of which had transposon insertions in one of two RASGAP genes, neurofibromin1 (NF1) and RAS p21 protein activator (Rasa1). Immunohistochemical analysis of a collection of human breast tumors confirmed that low expression of RASA1 is frequent in basal (triple-negative) and ER-negative tumors...
January 20, 2017: Cancer Research
https://www.readbyqxmd.com/read/28107457/novel-analysis-of-immune-cells-from-nasal-microbiopsy-demonstrates-reliable-reproducible-data-for-immune-populations-and-superior-cytokine-detection-compared-to-nasal-wash
#10
Simon P Jochems, Katherine Piddock, Jamie Rylance, Hugh Adler, Beatriz F Carniel, Andrea Collins, Jenna F Gritzfeld, Carole Hancock, Helen Hill, Jesus Reiné, Alexandra Seddon, Carla Solórzano, Syba Sunny, Ashleigh Trimble, Angela D Wright, Seher Zaidi, Stephen B Gordon, Daniela M Ferreira
The morbidity and mortality related to respiratory tract diseases is enormous, with hundreds of millions of individuals afflicted and four million people dying each year. Understanding the immunological processes in the mucosa that govern outcome following pathogenic encounter could lead to novel therapies. There is a need to study responses at mucosal surfaces in humans for two reasons: (i) Immunological findings in mice, or other animals, often fail to translate to humans. (ii) Compartmentalization of the immune system dictates a need to study sites where pathogens reside...
2017: PloS One
https://www.readbyqxmd.com/read/28107034/automated-measurement-of-magnesium-calcium-ratios-in-gastropod-shells-using-laser-induced-breakdown-spectroscopy-for-paleoclimatic-applications
#11
Adolfo Cobo, Asier García-Escárzaga, Igor Gutiérrez-Zugasti, Jesús Setién, Manuel R González-Morales, José Miguel López-Higuera
The chemical composition of mollusk shells offers information about environmental conditions present during the lifespan of the organism. Shells found in geological deposits and in many archeological sites can help to reconstruct past climatic conditions. For example, a correlation has been found between seawater temperature and the amount of some substituent elements (e.g., magnesium, strontium) in the biogenerated calcium carbonate matrix of the shell, although it is very species-specific. Here we propose the use laser-induced breakdown spectroscopy (LIBS) to estimate Mg/Ca ratios in modern specimens of the common limpet Patella vulgata...
January 1, 2017: Applied Spectroscopy
https://www.readbyqxmd.com/read/28106826/colorectal-carcinoma-a-general-overview-and-future-perspectives-in-colorectal-cancer
#12
REVIEW
Inés Mármol, Cristina Sánchez-de-Diego, Alberto Pradilla Dieste, Elena Cerrada, María Jesús Rodriguez Yoldi
Colorectal cancer (CRC) is the third most common cancer and the fourth most common cause of cancer-related death. Most cases of CRC are detected in Western countries, with its incidence increasing year by year. The probability of suffering from colorectal cancer is about 4%-5% and the risk for developing CRC is associated with personal features or habits such as age, chronic disease history and lifestyle. In this context, the gut microbiota has a relevant role, and dysbiosis situations can induce colonic carcinogenesis through a chronic inflammation mechanism...
January 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28106558/validation-of-suspected-somatic-single-nucleotide-variations-in-the-brain-of-alzheimer-s-disease-patients
#13
Alberto Gomez-Ramos, Angel J Picher, Esther García, Patricia Garrido, Felix Hernandez, Eduardo Soriano, Jesús Avila
Next-generation sequencing techniques and genome-wide association study analyses have provided a huge amount of data, thereby enabling the identification of DNA variations and mutations related to disease pathogenesis. New techniques and software tools have been developed to improve the accuracy and reliability of this identification. Most of these tools have been designed to discover and validate single nucleotide variants (SNVs). However, in addition to germ-line mutations, human tissues bear genomic mosaicism, which implies that somatic events are present only in low percentages of cells within a given tissue, thereby hindering the validation of these variations using standard genetic tools...
January 19, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28105782/thirteen-years-of-fight-against-doping-in-figures
#14
Millán Aguilar, Jesús Muñoz-Guerra, María Del Mar Plata, Juan Del Coso
No abstract text is available yet for this article.
January 19, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28104307/-should-screening-programs-for-carbapenemase-producing-strains-be-implemented-in-icu-patients
#15
Jesús Oteo
No abstract text is available yet for this article.
January 16, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/28103832/thromboelastometry-analysis-of-thrombocytopenic-dengue-patients-a-cross-sectional-study
#16
Felipe Maia de Toledo Piza, Thiago Domingos Corrêa, Alexandre Rodrigues Marra, João Carlos Campos Guerra, Roseny Dos Reis Rodrigues, Andrea Aparecida Rocco Villarinho, Valdir Fernandes de Aranda, Sandra Christina Pereira Lima Shiramizo, Maria Roza de Jesus de Lima, Esper Georges Kallas, Alexandre Biasi Cavalcanti
BACKGROUND: Dengue virus infection (DVI) is a prevalent and potentially fatal viral disease associated with coagulopathy. So far, the coagulation profile of DVI patients with thrombocytopenia has not been assessed through a viscoelastic test such as rotational thromboelastometry. We aimed to describe the prevalence and characteristics of coagulation abnormalities in dengue fever outpatients with thrombocytopenia, addressed by both rotational thromboelastometry and conventional coagulation tests...
January 19, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28103324/use-of-proton-pump-inhibitors-predicts-heart-failure-and-death-in-patients-with-coronary-artery-disease
#17
Ana María Pello Lázaro, Carmen Cristóbal, Juan Antonio Franco-Peláez, Nieves Tarín, Álvaro Aceña, Rocío Carda, Ana Huelmos, María Luisa Martín-Mariscal, Jesús Fuentes-Antras, Juan Martínez-Millá, Joaquín Alonso, Óscar Lorenzo, Jesús Egido, Lorenzo López-Bescós, José Tuñón
OBJECTIVES: Proton-pump inhibitors (PPIs) seem to increase the incidence of cardiovascular events in patients with coronary artery disease (CAD), mainly in those using clopidogrel. We analysed the impact of PPIs on the prognosis of patients with stable CAD. METHODS: We followed 706 patients with CAD. Primary outcome was the combination of secondary outcomes. Secondary outcomes were 1) acute ischaemic events (any acute coronary syndrome, stroke, or transient ischaemic attack) and 2) heart failure (HF) or death...
2017: PloS One
https://www.readbyqxmd.com/read/28103257/activation-of-the-jak-stat-signaling-pathway-after-in-vitro-stimulation-with-ifn%C3%A3-in-multiple-sclerosis-patients-according-to-the-therapeutic-response-to-ifn%C3%A3
#18
Isaac Hurtado-Guerrero, Maria Jesús Pinto-Medel, Patricia Urbaneja, Jose Luis Rodriguez-Bada, Antonio León, Miguel Guerrero, Óscar Fernández, Laura Leyva, Begoña Oliver-Martos
Interferon beta (IFNß) is a common treatment used for multiple sclerosis (MS) which acts through the activation of the JAK-STAT pathway. However, this therapy is not always effective and currently there are no reliable biomarkers to predict therapeutic response. We postulate that the heterogeneity in the response to IFNß therapy could be related to differential activation patterns of the JAK-STAT signaling pathway. Our aim was to evaluate the basal levels and the short term activation of this pathway after IFNß stimulation in untreated and IFNß treated patients, as well as according to therapeutic response...
2017: PloS One
https://www.readbyqxmd.com/read/28102457/prevalence-of-vertebral-fracture-and-densitometric-osteoporosis-in-spanish-adult-men-the-camargo-cohort-study
#19
José M Olmos, José L Hernández, Josefina Martínez, Emilio Pariente, Jesús Castillo, Daniel Prieto-Alhambra, Jesús González-Macías
The aim of this study was to assess the prevalence of densitometric osteoporosis and vertebral fractures in Spanish men aged ≥50 years, and to study how the relationship between them may change depending on how osteoporosis is diagnosed. A community-based population of 1003 men aged ≥50 years was studied. Bone mineral density (BMD) was measured by DXA at the lumbar spine, femoral neck and total hip. Vertebral fractures were assessed by lateral thoracic and lumbar spine radiographs. The prevalence of osteoporosis was estimated with both the World Health Organization (WHO) (T-score of <-2...
January 19, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28101850/assessment-of-regional-pulmonary-blood-flow-using-68-ga-dota-pet
#20
Carlos Velasco, Jesus Mateo, Arnoldo Santos, Adriana Mota-Cobian, Fernando Herranz, Juan Pellico, Ruben A Mota, Samuel España, Jesus Ruiz-Cabello
BACKGROUND: In vivo determination of regional pulmonary blood flow (PBF) is a valuable tool for the evaluation of many lung diseases. In this study, the use of (68)Ga-DOTA PET for the in vivo quantitative determination of regional PBF is proposed. This methodology was implemented and tested in healthy pigs and validated using fluorescent microspheres. The study was performed on young large white pigs (n = 4). To assess the reproducibility and consistency of the method, three PET scans were obtained for each animal...
December 2017: EJNMMI Research
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