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https://www.readbyqxmd.com/read/28230376/facet-dependent-thermal-instability-in-licoo2
#1
Soroosh Sharifi-Asl, Fernando A Soto, Anmin Nie, Yifei Yuan, Hasti Asayesh-Ardakani, Tara Foroozan, Vitaliy Yurkiv, Boao Song, Farzad Mashayek, Robert F Klie, Khalil Amine, Jun Lu, Perla B Balbuena, Reza Shahbazian-Yassar
Thermal runaways triggered by the oxygen release from oxide cathode materials pose a major safety concern for widespread application of lithium ion batteries. Utilizing in-situ aberration-corrected scanning transmission electron microscopy (STEM) and electron energy loss spectroscopy (EELS) at high temperatures, we show that oxygen release from LixCoO2 cathode crystals is occurring at the surface of particles. We correlated this local oxygen evolution from the LixCoO2 structure with local phase transitions spanning from layered to spinel and then to rock salt structure upon exposure to elevated temperatures...
February 23, 2017: Nano Letters
https://www.readbyqxmd.com/read/28227888/simulating-the-activation-contraction-and-movement-of-skeletal-muscles-using-the-bidomain-model
#2
A Lopez Rincon, C Cantu, R Soto, S Shimoda, A Lopez Rincon, C Cantu, R Soto, S Shimoda, A Lopez Rincon, R Soto, C Cantu, S Shimoda
A simulation of the muscle activation, contraction and movement is here presented. This system was developed based on the Bidomain mathematical model of the electrical propagation in muscles. This study shows an electrical stimuli input to a muscle and how this behave. The comparison between healthy subject and patient with muscle activation impairment is depicted, depending on whether the signal reaches a threshold. A 3D model of a bicep muscle and a forearm bone connected was constructed using OpenGL. This platform could be used for development of controllers for biomechatronic systems in future works...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227636/a-system-to-monitor-tremors-in-patients-with-parkinson-s-disease
#3
A Bermeo, M Bravo, M Huerta, A Soto, A Bermeo, M Bravo, M Huerta, A Soto, A Bermeo, M Huerta, A Soto, M Bravo
In this work the design and development of a system to monitor tremors in patients with Parkinson's disease based on Arduino open-source prototyping platform is presented. For processing data tremors acquired by the sensor device we have developed an Android application which allows an evaluation of the state of PD patients based on three types of tests that are in the Unified Parkinson's Disease Rating Scale recommended by the Movement Disorder Society (MDS-UPDRS); the tests performed in the application are: postural tremor of the hands, kinetic tremors of the hands and resting tremor amplitude...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226088/epilepsy-and-early-onset-overgrowth-syndrome-revealing-sotos-syndrome
#4
Wladimir Bocca Vieira de Rezende Pinto, Paulo Victor Sgobbi de Souza, Thiago Bortholin, Erika Lopes Honorato, Leonardo Favi Bocca, Acary Souza Bulle Oliveira
No abstract text is available yet for this article.
February 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/28225754/targeting-a-car-to-the-trac-locus-with-crispr-cas9-enhances-tumour-rejection
#5
Justin Eyquem, Jorge Mansilla-Soto, Theodoros Giavridis, Sjoukje J C van der Stegen, Mohamad Hamieh, Kristen M Cunanan, Ashlesha Odak, Mithat Gönen, Michel Sadelain
Chimeric antigen receptors (CARs) are synthetic receptors that redirect and reprogram T cells to mediate tumour rejection. The most successful CARs used to date are those targeting CD19 (ref. 2), which offer the prospect of complete remission in patients with chemorefractory or relapsed B-cell malignancies. CARs are typically transduced into the T cells of a patient using γ-retroviral vectors or other randomly integrating vectors, which may result in clonal expansion, oncogenic transformation, variegated transgene expression and transcriptional silencing...
February 22, 2017: Nature
https://www.readbyqxmd.com/read/28224109/timing-method-and-discontinuation-of-hydrocortisone-administration-for-septic-shock-patients
#6
Miguel A Ibarra-Estrada, Quetzalcóatl Chávez-Peña, Claudia I Reynoso-Estrella, Jorge Rios-Zermeño, Pável E Aguilera-González, Miguel A García-Soto, Guadalupe Aguirre-Avalos
AIM: To characterize the prescribing patterns for hydrocortisone for patients with septic shock and perform an exploratory analysis in order to identify the variables associated with better outcomes. METHODS: This prospective cohort study included 59 patients with septic shock who received stress-dose hydrocortisone. It was performed at 2 critical care units in academic hospitals from June 1(st), 2015, to July 31(st), 2016. Demographic data, comorbidities, medical management details, adverse effects related to corticosteroids, and outcomes were collected after the critical care physician indicated initiation of hydrocortisone...
February 4, 2017: World Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/28223412/identification-of-a-selective-small-molecule-inhibitor-of-type-1-adenylyl-cyclase-activity-with-analgesic-properties
#7
Tarsis F Brust, Doungkamol Alongkronrusmee, Monica Soto-Velasquez, Tanya A Baldwin, Zhishi Ye, Mingji Dai, Carmen W Dessauer, Richard M van Rijn, Val J Watts
Adenylyl cyclase 1 (AC1) belongs to a group of adenylyl cyclases (ACs) that are stimulated by calcium in a calmodulin-dependent manner. Studies with AC1 knockout mice suggest that inhibitors of AC1 may be useful for treating pain and opioid dependence. However, nonselective inhibition of AC isoforms could result in substantial adverse effects. We used chemical library screening to identify a selective AC1 inhibitor with a chromone core structure that may represent a new analgesic agent. After demonstrating that the compound (ST034307) inhibited Ca(2+)-stimulated adenosine 3',5'-monophosphate (cAMP) accumulation in human embryonic kidney (HEK) cells stably transfected with AC1 (HEK-AC1 cells), we confirmed selectivity for AC1 by testing against all isoforms of membrane-bound ACs...
February 21, 2017: Science Signaling
https://www.readbyqxmd.com/read/28221113/autochthonous-outbreak-and-expansion-of-canine-visceral-leishmaniasis-uruguay
#8
Dinora Satragno, Paula Faral-Tello, Bruno Canneva, Lorenzo Verger, Alejandra Lozano, Edgardo Vitale, Gonzalo Greif, Carlos Soto, Carlos Robello, Yester Basmadjián
We report an outbreak of canine visceral leishmaniasis in Uruguay. Blood specimens from 11/45 dogs tested positive for Leishmania spp. Specimens of Lutzomyia longipalpis sand flies were captured; typing revealed Leishmania infantum. Our findings document an expansion of visceral leishmaniasis to southern South America and risk for vectorborne transmission to humans.
March 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28220163/a-microneedle-biosensor-for-minimally-invasive-transdermal-detection-of-nerve-agents
#9
Rupesh K Mishra, A M Vinu Mohan, Fernando Soto, Robert Chrostowski, Joseph Wang
A microneedle electrochemical biosensor for the minimally invasive detection of organophosphate (OP) chemical agents is described. The new sensor relies on the coupling of the effective biocatalytic action of organophosphorus hydrolase (OPH) with a hollow-microneedle modified carbon-paste array electrode transducer, and involves rapid square-wave voltammetric (SWV) measurements of the p-nitrophenol product of the OPH enzymatic reaction in the presence of the OP substrate. The scanning-potential SWV transduction mode offers an additional dimension of selectivity compared to common fixed-potential OPH-amperometric biosensors...
February 21, 2017: Analyst
https://www.readbyqxmd.com/read/28219917/isosorbide-dinitrate-with-or-without-hydralazine-does-not-reduce-wave-reflections-left-ventricular-hypertrophy-or-myocardial-fibrosis-in-patients-with-heart-failure-with-preserved-ejection-fraction
#10
Payman Zamani, Scott Akers, Haideliza Soto-Calderon, Melissa Beraun, Maheswara R Koppula, Swapna Varakantam, Deepa Rawat, Prithvi Shiva-Kumar, Philip G Haines, Jesse Chittams, Raymond R Townsend, Walter R Witschey, Patrick Segers, Julio A Chirinos
BACKGROUND: Wave reflections, which are increased in patients with heart failure with preserved ejection fraction, impair diastolic function and promote pathologic myocardial remodeling. Organic nitrates reduce wave reflections acutely, but whether this is sustained chronically or affected by hydralazine coadministration is unknown. METHODS AND RESULTS: We randomized 44 patients with heart failure with preserved ejection fraction in a double-blinded fashion to isosorbide dinitrate (ISDN; n=13), ISDN+hydralazine (ISDN+hydral; n=15), or placebo (n=16) for 6 months...
February 20, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28219769/epitranscriptomic-regulation-of-viral-replication
#11
REVIEW
Camila Pereira-Montecinos, Fernando Valiente-Echeverría, Ricardo Soto-Rifo
RNA plays central roles in biology and novel functions and regulation mechanisms are constantly emerging. To accomplish some of their functions within the cell, RNA molecules undergo hundreds of chemical modifications from which N6-methyladenosine (m(6)A), inosine (I), pseudouridine (ψ) and 5-methylcytosine (5mC) have been described in eukaryotic mRNA. Interestingly, the m(6)A modification was shown to be reversible, adding novel layers of regulation of gene expression through what is now recognized as epitranscriptomics...
February 17, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28219741/regulation-of-human-gdnf-gene-expression-in-nigral-dopaminergic-neurons-using-a-new-doxycycline-regulated-nts-polyplex-nanoparticle-system
#12
Armando J Espadas-Alvarez, Michael J Bannon, Carlos E Orozco-Barrios, Lourdes Escobedo-Sanchez, Jose Ayala-Davila, David Reyes-Corona, Guadalupe Soto-Rodriguez, Vicente Escamilla-Rivera, Andrea De Vizcaya-Ruiz, M Eugenia Gutierrez-Castillo, America Padilla-Viveros, Daniel Martinez-Fong
The human glial-cell derived neurotrophic factor (hGDNF) gene transfer by neurotensin (NTS)-polyplex nanoparticles functionally restores the dopamine nigrostriatal system in experimental Parkinson's disease models. However, high levels of sustained expression of GDNF eventually can cause harmful effects. Herein, we report an improved NTS-polyplex nanoparticle system that enables regulation of hGDNF expression within dopaminergic neurons. We constructed NTS-polyplex nanoparticles containing a single bifunctional plasmid that codes for the reverse tetracycline-controlled transactivator advanced (rtTA-Adv) under the control of NBRE3x promoter, and for hGDNF under the control of tetracycline-response element (TRE)...
February 17, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28218587/child-s-sensory-profile-and-adult-playfulness-as-predictors-of-parental-self-efficacy
#13
Rosa Román-Oyola, Stacey Reynolds, Ivonnellys Soto-Feliciano, Laura Cabrera-Mercader, Jessica Vega-Santana
Parents of children with autism spectrum disorder (ASD) may have difficulty engaging their children through play, thus affecting the parent-child relationship and parental self-efficacy. This study intended to examine children's sensory profile and adults' playfulness as predictors of parental self-efficacy. A total of 136 parents of children ages 3-7 yr completed the Short Sensory Profile, the Playfulness Scale for Adults, and the Tool to Measure Parenting Self-Efficacy. For the parental couples of children with ASD, the most relevant predictor of general parental self-efficacy was the child's sensory profile...
March 2017: American Journal of Occupational Therapy: Official Publication of the American Occupational Therapy Association
https://www.readbyqxmd.com/read/28216581/biopharmaceutical-characterization-and-bioavailability-study-of-a-tetrazole-analog-of-clofibric-acid-in-rat
#14
Nancy Vara-Gama, Adriana Valladares-Méndez, Gabriel Navarrete-Vazquez, Samuel Estrada-Soto, Luis Manuel Orozco-Castellanos, Julio César Rivera-Leyva
In the current investigation, the physicochemical, biopharmaceutical and pharmacokinetic characterization of a new clofibric acid analog (Compound 1) was evaluated. Compound 1 showed affinity by lipophilic phase in 1 to 5 pH interval, indicating that this compound would be absorbed favorably in duodenum or jejunum. Also, Compound 1 possess two ionic species, first above of pH 4.43 and, the second one is present over pH 6.08. The apparent permeability in everted sac rat intestine model was 8.73 × 10(-6) cm/s in duodenum and 1...
February 14, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28216181/changing-trends-in-serotypes-of-s-pneumoniae-isolates-causing-invasive-and-non-invasive-diseases-in-unvaccinated-population-in-mexico-2000-2014
#15
María Noemí Carnalla-Barajas, Araceli Soto-Noguerón, Miguel Angel Sánchez-Alemán, Fortino Solórzano-Santos, María Elena Velazquez-Meza, Gabriela Echániz-Aviles
OBJECTIVE: Introduction of pneumococcal conjugate vaccines (PCV) targeted against a limited number of serotypes substantially decreased invasive (IPD) and non-invasive pneumococcal diseases (NIPD) but it was accompanied by non-vaccine type replacement disease. After 9 years of introduction of PCV in Mexico, we analyze the evidence of the indirect effects on IPD and NIPD serotype distribution among groups not targeted to receive the vaccine. METHODS: From January 2000 to December 2014, pneumococcal strains isolated from IPD and NIPD cases from patients ≥5 years of age from participant hospitals of the SIREVA II (Sistema Regional de Vacunas) network, were serotyped...
February 16, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28215472/a-giant-mesenteric-cyst-mimicking-untreatable-ascites
#16
M Vallejo-Soto, S Orozco-Simental
No abstract text is available yet for this article.
February 16, 2017: Revista de Gastroenterología de México
https://www.readbyqxmd.com/read/28215324/bacillus-probiotic-enzymes-external-auxiliary-apparatus-to-avoid-digestive-deficiencies-water-pollution-diseases-and-economic-problems-in-marine-cultivated-animals
#17
Jorge Olmos Soto
Exploitation of marine fishes is the main source of several life-supporting feed compounds such as proteins, lipids, and carbohydrates that maintain the production of most trading marine organisms by aquaculture. However, at this rate the marine inventory will go to the end soon, since fishery resources are finite. In this sense, the availability of the principal ingredients obtained from marine fishes is going to decrease considerably, increasing the diet prices and affecting the economy of this activity. Therefore, aquaculture industry needs to find nonexpensive land unconventional resources of protein, carbohydrates, and lipids and use bacterial probiotics to improve digestion-assimilation of these unfamiliar compounds...
2017: Advances in Food and Nutrition Research
https://www.readbyqxmd.com/read/28212950/incorporating-budget-impact-analysis-in-the-implementation-of-complex-interventions-a-case-of-an-integrated-intervention-for-multimorbid-patients-within-the-carewell-study
#18
Myriam Soto-Gordoa, Arantzazu Arrospide, Marisa Merino Hernández, Joana Mora Amengual, Ane Fullaondo Zabala, Igor Larrañaga, Esteban de Manuel, Javier Mar
OBJECTIVES: To develop a framework for the management of complex health care interventions within the Deming continuous improvement cycle and to test the framework in the case of an integrated intervention for multimorbid patients in the Basque Country within the CareWell project. METHODS: Statistical analysis alone, although necessary, may not always represent the practical significance of the intervention. Thus, to ascertain the true economic impact of the intervention, the statistical results can be integrated into the budget impact analysis...
January 2017: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/28212821/cloning-and-molecular-characterization-of-the-betaine-aldehyde-dehydrogenase-involved-in-the-biosynthesis-of-glycine-betaine-in-white-shrimp-litopenaeus-vannamei
#19
María F Delgado-Gaytán, Jesús A Rosas-Rodríguez, Gloria Yepiz-Plascencia, Ciria G Figueroa-Soto, Elisa M Valenzuela-Soto
The enzyme betaine aldehyde dehydrogenase (BADH) catalyzes the irreversible oxidation of betaine aldehyde to glycine betaine (GB), a very efficient osmolyte accumulated during osmotic stress. In this study, we determined the nucleotide sequence of the cDNA for the BADH from the white shrimp Litopenaeus vannamei (LvBADH). The cDNA was 1882 bp long, with a complete open reading frame of 1524 bp, encoding 507 amino acids with a predicted molecular mass of 54.15 kDa and a pI of 5.4. The predicted LvBADH amino acid sequence shares a high degree of identity with marine invertebrate BADHs...
February 14, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28212096/system-level-design-of-a-64-channel-low-power-neural-spike-recording-sensor
#20
Manuel Delgado-Restituto, Alberto Rodriguez-Perez, Angela Darie, Cristina Soto-Sanchez, Eduardo Fernandez-Jover, Angel Rodriguez-Vazquez
This paper reports an integrated 64-channel neural spike recording sensor, together with all the circuitry to process and configure the channels, process the neural data, transmit via a wireless link the information and receive the required instructions. Neural signals are acquired, filtered, digitized and compressed in the channels. Additionally, each channel implements an auto-calibration algorithm which individually configures the transfer characteristics of the recording site. The system has two transmission modes; in one case the information captured by the channels is sent as uncompressed raw data; in the other, feature vectors extracted from the detected neural spikes are released...
February 13, 2017: IEEE Transactions on Biomedical Circuits and Systems
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