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David A Fedele, Christopher C Cushing, Alyssa Fritz, Christina M Amaro, Adrian Ortega
Importance: Mobile health interventions are increasingly popular in pediatrics; however, it is unclear how effective these interventions are in changing health outcomes. Objective: To determine the effectiveness of mobile health interventions for improving health outcomes in youth 18 years or younger. Data Sources: Studies published through November 30, 2016, were collected through PubMed, Cumulative Index to Nursing and Allied Health Literature, Educational Resources Information Center, and PsychINFO...
March 20, 2017: JAMA Pediatrics
Raul Felipe Palma-Álvarez, Elena Ros-Cucurull, Kristopher Amaro-Hosey, Laia Rodriguez-Cintas, Lara Grau-López, Margarida Corominas-Roso, Cristina Sánchez-Mora, Carlos Roncero
Several neurobiological factors are related to opiate-use disorder (OUD), and among them, neurotrophins have a relevant role. Brain-derived neurotrophic factor (BDNF) is a central neurotrophin involved in many neuronal processes, and it has been related to several psychiatric diseases and addictive disorders. BDNF can be measured in plasma and serum; its levels may reflect BDNF concentrations in the central nervous system (CNS) and, indirectly, CNS processes. Hence, peripheral BDNF could be a biomarker in clinical practice...
March 17, 2017: Reviews in the Neurosciences
Christopher T Salatto, Russell A Miller, Kimberly O Cameron, Emily Cokorinos, Allan Reyes, Jessica Ward, Matt Calabrese, Ravi Kurumbail, Francis Rajamohan, Amit S Kalgutkar, David A Tess, Andre Shavnya, Nathan E Genung, David J Edmonds, Aditi Jatkar, Benjamin S Maciejewski, Marina Amaro, Harmeet Gandhok, Mara Monetti, Katherine Cialdea, Eliza Bollinger, John M Kreeger, Timothy M Coskran, Alan C Opsahl, Germaine G Boucher, Morris J Birnbaum, Paul DaSilva-Jardine, Tim Rolph
Diabetic nephropathy remains an area of high unmet medical need, with current therapies slowing, but not preventing the progression of disease. A reduced phosphorylation state of adenosine monophosphate-activated protein kinase (AMPK) has been correlated with diminished kidney function in both human subjects and animal models of kidney disease. Here, we describe the identification of novel, potent, small molecule activators of AMPK that selectively activate AMPK heterotrimers containing the β1 subunit. After confirming that human and rodent kidney predominately express AMPK β1, we explore the effects of pharmacologic activation of AMPK in the ZSF-1 rat model of diabetic nephropathy...
March 13, 2017: Journal of Pharmacology and Experimental Therapeutics
A T D L Alho, C Hamani, E J L Alho, R E da Silva, G A B Santos, R C Neves, L L Carreira, C M M Araújo, G Magalhães, D B Coelho, M C Alegro, M G M Martin, L T Grinberg, C A Pasqualucci, H Heinsen, E T Fonoff, E Amaro
The pedunculopontine nucleus (PPN) has been proposed as target for deep brain stimulation (DBS) in patients with postural instability and gait disorders due to its involvement in muscle tonus adjustments and control of locomotion. However, it is a deep-seated brainstem nucleus without clear imaging or electrophysiological markers. Some studies suggested that diffusion tensor imaging (DTI) may help guiding electrode placement in the PPN by showing the surrounding fiber bundles, but none have provided a direct histological correlation...
March 10, 2017: Brain Structure & Function
Hiurma Sánchez-Pérez, Beatriz Tejera-Segura, Antonia de Vera-González, Alejandra González-Delgado, José Manuel Olmos, José Luis Hernández, Alfonso Corrales, Raquel López-Mejías, Miguel Angel González-Gay, Iván Ferraz-Amaro
OBJECTIVES: Insulin resistance (IR) plays a role in the increased cardiovascular risk of systemic lupus erythematosus (SLE) patients. This study aimed to determine the potential association of IR with disease activity, drug exposure and subclinical atherosclerosis in patients with SLE. METHODS: This cross-sectional study encompassed 87 non-diabetic SLE patients and 82 sex-matched controls. Insulin and C-peptide serum levels, IR indexes by homeostatic model assessment (HOMA2) (both insulin-based: HOMA2-IR, and with C-peptide: HOMA2-IR-C-peptide) and lipid profiles were assessed in patients and controls...
March 8, 2017: Clinical and Experimental Rheumatology
Jelena Vojinovic, Angela Tincani, Alberto Sulli, Stefano Soldano, Laura Andreoli, Francesca Dall'Ara, Ruxandra Ionescu, Katarina Simic Pasalic, Inete Balcune, Ivan Ferraz-Amaro, Małgorzata Tlustochowicz, Irena Butrimiene, Egle Punceviciene, Natalia Toroptsova, Simeon Grazio, Jadranka Morovic-Vergles, Pavol Masaryk, Kati Otsa, Miguel Bernardes, Vladimira Boyadzhieva, Fausto Salaffi, Maurizio Cutolo
OBJECTIVE: To collect data on vitamin D (25(OH)D) serum levels in a large number of rheumatoid arthritis (RA) patients from different European countries, to investigate their relation with disease activity, disability, quality of life, and possibly to construct a new Patient Reported Outcome (PRO) questionnaire in order to self-estimate if they are at risk for vitamin D insufficiency/deficiency-related clinical implications (D-PRO). METHODS: This was a European League Against Rheumatism (EULAR) supported cross-sectional study (project No CLI064) which involved 625 RA patients (mean age 55±11 years, mean disease duration 11±9 years), 276 age and sex matched healthy subjects, and rheumatologists working in academic institutions or hospital centres, as well as PARE organizations (patient representatives) from 13 European countries...
March 6, 2017: Autoimmunity Reviews
Landulfo Silveira, Rita de Cássia Fernandes Borges, Ricardo Scarparo Navarro, Hector Enrique Giana, Renato Amaro Zângaro, Marcos Tadeu Tavares Pacheco, Adriana Barrinha Fernandes
Raman spectroscopy has been employed in the quantitative analysis of biochemical components in human serum. This study aimed to develop a spectral model to estimate the concentration of glucose and lipid fractions in human serum, thus evaluating the feasibility of Raman spectroscopy technique for diagnostic purposes. A total of 44 samples of blood serum were collected from volunteers submitted to routine blood biochemical assay analysis. The biochemical concentrations of glucose, triglycerides, cholesterol, and high-density and low-density lipoproteins (HDL and LDL) were obtained by colorimetric method...
March 7, 2017: Lasers in Medical Science
A Ramı Rez-Solı S, J I Amaro-Estrada, J Hernández-Cobos, L Maron
We report the results of Born-Oppenheimer molecular dynamics (BOMD) simulations on the aqueous solvation of the SmI2 molecule at room temperature using the cluster microsolvation approach including 32 water molecules. The electronic structure calculations were done using the M062X hybrid exchange-correlation functional in conjunction with the 6-31G** basis sets for oxygen and hydrogen. For the iodine and samarium atoms the Stuttgart-Köln relativistic effective-core potentials were utilized with their associated valence basis sets...
March 14, 2017: Journal of Physical Chemistry. A
Camila da Luz Eltchechem, Afonso Shiguemi Inoue Salgado, Renato Amaro Zângaro, Mário César da Silva Pereira, Ivo Ilvan Kerppers, Luis Augusto da Silva, Rodolfo Borges Parreira
Excessive Aβ deposition in the brain is associated with the formation of senile plaques, and their diffuse distribution is related to Alzheimer's disease. Thirty rats (EG) were irradiated with light-emitting diode (photobiomodulation (PBM)) in the frontal region of the skull after being inoculated with the Aβ toxin in the hippocampus; 30 rats were used as the control group (CG). The analysis was conducted at 7, 14, and 21 days after irradiation. We observed a decreased in Aβ deposits in treated animals compared with animals in the CG...
March 2, 2017: Lasers in Medical Science
C I León-Pimentel, J I Amaro-Estrada, H Saint-Martin, A Ramírez-Solís
In this work, a theoretical investigation was made to assess the coordination properties of Pb(ii) in [Pb(H2O)n](2+) clusters, with n = 4, 6, 8, 12, and 29, as well as to study proton transfer events, by means of Born-Oppenheimer molecular dynamics simulations at the B3LYP/aug-cc-pVDZ-pp/6-311G level of theory, that were calibrated in comparison with B3LYP/aug-cc-pVDZ-PP/aug-cc-pVDZ calculations. Hemidirected configurations were found in all cases; the radial distribution functions (RDFs) produced well defined first hydration shells (FHSs) for n = 4,6,8, and 12, that resulted in a coordination number CN = 4, whereas a clear-cut FHS was not found for n = 29 because the RDF did not have a vacant region after the first maximum; however, three water molecules remained directly interacting with the Pb ion for the whole simulation, while six others stayed at average distances shorter than 4 Å but dynamically getting closer and farther, thus producing a CN ranging from 6 to 9, depending on the criterion used to define the first hydration shell...
February 28, 2017: Journal of Chemical Physics
V Samouillan, E Revuelta-López, C Soler-Botija, J Dandurand, Aleyda Benitez-Amaro, L Nasarre, D de Gonzalo-Calvo, A Bayes-Genis, C Lacabanne, V Llorente-Cortés
Adverse cardiac remodeling after myocardial infarction (MI) causes impaired ventricular function and heart failure. Histopathological characterization is commonly used to detect the location, size and shape of MI sites. However, the information about chemical composition, physical structure and molecular mobility of peri- and infarct zones post-MI is rather limited. The main objective of this work was to explore the spatiotemporal biochemical and biophysical alterations of key cardiac components post-MI. The FTIR spectra of healthy and remote myocardial tissue shows amides A, I, II and III associated with proteins in freeze-died tissue as major absorptions bands...
February 25, 2017: Biochimica et Biophysica Acta
Yolanda Flores-Peña, América Acuña-Blanco, Velia M Cárdenas-Villarreal, Marily D Amaro-Hinojosa, María E Pérez-Campa, Jesús R Elenes-Rodríguez
Introducción: las madres no reconocen cuando su hijo presenta sobrepeso-obesidad (SP-OB) y existe evidencia de relación entre esta percepción (PMPH) no adecuada y el estilo materno de alimentación infantil (EMAI).Objetivos: a) evaluar la confiabilidad del Cuestionario Estilos de Alimentación del Cuidador (CFSQ); b) verificar la asociación entre la PMPH y el estado nutricio del hijo; c) describir el EMAI; d) verificar diferencias entre el EMAI y el IMC del hijo; e) verificar la asociación entre la PMPH y los EMAI...
February 1, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
Perla Niño-Moreno, Edgar Turrubiartes-Martínez, Brenda Oceguera-Maldonado, Nubia Baltazar-Benítez, Cindy Negrete-González, Brenda Oliva-Ramírez, Lourdes Baranda, Roberto González-Amaro
BACKGROUND: Rheumatoid arthritis is a chronic inflammatory disease whose cause has not been fully elucidated. However, genetic factors seem to have an important role in its pathogenesis. OBJECTIVE: We analyzed the possible association between rheumatoid arthritis and variants of the SLC11A1 gene, which encodes for NRAMP1, a protein involved in the activation of phagocytes and synthesis of proinflammatory cytokines. METHODS: In a case-control study in a Mexican Mestizo population, blood samples from 188 patients with rheumatoid arthritis and 133 healthy individuals were obtained to determine the frequency of SLC11A1 gene variants INT4 (469+14G/C or rs3731865), D543N (1730G/A or rs17235409) and 3'UTR (1729+55del4 or rs17235416) by polymerase chain reaction and restriction fragment length polymorphism...
January 2017: Revista de Investigación Clínica; Organo del Hospital de Enfermedades de la Nutrición
A P Alves de Matos, Líbia Zé-Zé, Fátima Amaro, Maria João Alves
No abstract text is available yet for this article.
January 2017: Ultrastructural Pathology
Andrea Cristina de Lima-Pardini, Raymundo Machado de Azevedo Neto, Daniel Boari Coelho, Catarina Costa Boffino, Sukhwinder S Shergill, Carolina de Oliveira Souza, Rachael Brant, Egberto Reis Barbosa, Ellison Fernando Cardoso, Luis Augusto Teixeira, Rajal G Cohen, Fay Bahling Horak, Edson Amaro
Knowledge of brain correlates of postural control is limited by the technical difficulties in performing controlled experiments with currently available neuroimaging methods. Here we present a system that allows the measurement of anticipatory postural adjustment of human legs to be synchronized with the acquisition of functional magnetic resonance imaging data. The device is composed of Magnetic Resonance Imaging (MRI) compatible force sensors able to measure the level of force applied by both feet. We tested the device in a group of healthy young subjects and a group of elderly subjects with Parkinson's disease using an event-related functional MRI (fMRI) experiment design...
February 23, 2017: Scientific Reports
Adriana Amaro, Rosaria Gangemi, Francesca Piaggio, Giovanna Angelini, Gaia Barisione, Silvano Ferrini, Ulrich Pfeffer
Uveal melanoma (UM), a rare cancer of the eye, is distinct from cutaneous melanoma by its etiology, the mutation frequency and profile, and its clinical behavior including resistance to targeted therapy and immune checkpoint blockers. Primary disease is efficiently controlled by surgery or radiation therapy, but about half of UMs develop distant metastasis mostly to the liver. Survival of patients with metastasis is below 1 year and has not improved in decades. Recent years have brought a deep understanding of UM biology characterized by initiating mutations in the G proteins GNAQ and GNA11...
February 22, 2017: Cancer Metastasis Reviews
Alice Simon, Maria Inês Amaro, Anne Marie Healy, Lucio Mendes Cabral, Valeria Pereira de Sousa
The aim of this study was to develop and validate a discriminating in vitro release test to evaluate rivastigmine transdermal patches. The Exelon® Patch was chosen as a model transdermal product. The studies of in vitro release were designed to determine the impact of the official apparatus chosen (USP apparatus 5 and USP apparatus 6), the rotation speed, and the dissolution medium characteristics on the rivastigmine release profile from transdermal patches. Patches with different drug release profiles were tested in order to evaluate the discriminating power of the in vitro release test developed and validated...
February 21, 2017: AAPS PharmSciTech
Claudinei E Biazoli, Giovanni A Salum, Pedro M Pan, André Zugman, Edson Amaro, Luis A Rohde, Euripedes C Miguel, Andrea P Jackowski, Rodrigo A Bressan, João R Sato
No abstract text is available yet for this article.
2017: Frontiers in Human Neuroscience
Emília P Barros, Robert D Malmstrom, Kimya Nourbakhsh, Jason C Del Rio, Alexandr P Kornev, Susan S Taylor, Rommie E Amaro
Close-range electrostatic interactions that form salt bridges are key components of protein stability. Here we investigate the role of these charged interactions in modulating the allosteric activation of protein kinase A (PKA) via computational and experimental mutational studies of a conserved basic patch located in the regulatory subunit's B/C helix. Molecular dynamics simulations evidenced the presence of an extended network of fluctuating salt bridges spanning the helix and connecting the two cAMP binding domains in its extremities...
March 14, 2017: Biochemistry
Ewelina Celińska, Rodrigo Ledesma-Amaro, Macarena Larroude, Tristan Rossignol, Cyrille Pauthenier, Jean-Marc Nicaud
In this study, we have adopted Golden Gate modular cloning strategy to develop a robust and versatile DNA assembly platform for the nonconventional yeast Yarrowia lipolytica. To this end, a broad set of destination vectors and interchangeable building blocks have been constructed. The DNA modules were assembled on a scaffold of predesigned 4 nt overhangs covering three transcription units (each bearing promoter, gene and terminator), selection marker gene and genomic integration targeting sequences, constituting altogether thirteen elements...
March 2017: Microbial Biotechnology
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