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https://www.readbyqxmd.com/read/28241514/antivenom-evaluation-by-electrophysiological-analysis
#1
Rita Restano-Cassulini, Walter Garcia, Jorge F Paniagua-Solís, Lourival D Possani
Scorpion stings on humans are medically relevant because they may contain toxins that specifically target ion channels. During antivenom production, pharmaceutical companies must use a large number of experimental animals to ensure the antivenom's efficacy according to pharmacopeia methods. Here we present an electrophysiological alternative for the evaluation of horse antivenoms produced against two species of Moroccan scorpions: Buthus mardochei and Androctonus mauretanicus. Human sodium and potassium channels and acetylcholine nicotinic receptors were analyzed by standard patch-clamp techniques...
February 23, 2017: Toxins
https://www.readbyqxmd.com/read/28239616/optimization-of-nanoparticle-based-sers-substrates-through-large-scale-realistic-simulations
#2
Diego M Solís, José M Taboada, Fernando Obelleiro, Luis M Liz-Marzán, F Javier García de Abajo
Surface-enhanced Raman scattering (SERS) has become a widely used spectroscopic technique for chemical identification, providing unbeaten sensitivity down to the single-molecule level. The amplification of the optical near field produced by collective electron excitations -plasmons- in nanostructured metal surfaces gives rise to a dramatic increase by many orders of magnitude in the Raman scattering intensities from neighboring molecules. This effect strongly depends on the detailed geometry and composition of the plasmon-supporting metallic structures...
February 15, 2017: ACS Photonics
https://www.readbyqxmd.com/read/28237122/a-new-era-for-nuclear-medicine-neuroimaging-in-spain-where-do-we-start-from-in-spain
#3
M A Balsa, V Camacho, P Garrastachu, D García-Solís, M Gómez-Río, S Rubí, X Setoain, J Arbizu
OBJECTIVE: To determine the status of neuroimaging studies of Nuclear Medicine in Spain during 2013 and first quarter of 2014, in order to define the activities of the neuroimaging group of the Spanish Society of Nuclear Medicine and Molecular Imaging (SEMNIM). MATERIAL AND METHODS: A questionnaire of 14 questions was designed, divided into 3 parts: characteristics of the departments (equipment and professionals involved); type of scans and clinical indications; and evaluation methods...
February 22, 2017: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/28237027/cholesterol-plays-a-larger-role-during-mycobacterium-tuberculosis-in%C3%A2-vitro-dormancy-and-reactivation-than-previously-suspected
#4
Maria D Soto-Ramirez, Diana A Aguilar-Ayala, Lazaro Garcia-Morales, Sofia M Rodriguez-Peredo, Claudia Badillo-Lopez, Diana E Rios-Muñiz, Mario A Meza-Segura, Gelen Y Rivera-Morales, Lizbel Leon-Solis, Jorge F Cerna-Cortes, Sandra Rivera-Gutierrez, Addy C Helguera-Repetto, Jorge A Gonzalez-Y-Merchand
It is known that cholesterol plays a key role for Mycobacterium tuberculosis (Mtb) adaptation and survival within the host, thus contributing to the establishment of dormancy. It has been extensively demonstrated that fatty acids are the main energy source of Mtb during infection and dormancy, and it has been proposed that these molecules are implicated in reactivation of bacilli from a dormant state. We used in vitro models to analyze Mtb gene expression during dormancy and reactivation when fatty acids and cholesterol are the unique carbon source in the media...
March 2017: Tuberculosis
https://www.readbyqxmd.com/read/28231402/ex-vivo-visualization-of-human-ciliated-epithelium-and-quantitative-analysis-of-induced-flow-dynamics-by-using-optical-coherence-tomography
#5
Yuye Ling, Xinwen Yao, Ute A Gamm, Emilio Arteaga-Solis, Charles W Emala, Michael A Choma, Christine P Hendon
BACKGROUND AND OBJECTIVE: Cilia-driven mucociliary clearance is an important self-defense mechanism of great clinical importance in pulmonary research. Conventional light microscopy possesses the capability to visualize individual cilia and its beating pattern but lacks the throughput to assess the global ciliary activities and flow dynamics. Optical coherence tomography (OCT), which provides depth-resolved cross-sectional images, was recently introduced to this area. MATERIALS AND METHODS: Fourteen de-identified human tracheobronchial tissues are directly imaged by two OCT systems: one system centered at 1,300 nm with 6...
February 23, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28228752/intestinal-microbiota-and-weight-gain-in-preterm-neonates
#6
Silvia Arboleya, Pablo Martinez-Camblor, Gonzalo Solís, Marta Suárez, Nuria Fernández, Clara G de Los Reyes-Gavilán, Miguel Gueimonde
The involvement of the gut microbiota on weight-gain and its relationship with childhood undernutrition and growth has been reported. Thus, the gut microbiota constitutes a potential therapeutic target for preventing growth impairment. However, our knowledge in this area is limited. In this study we aimed at evaluating the relationship among early microbiota, growth, and development in preterm infants. To this end we assessed the levels of specific microorganisms by qPCR, and those of short chain fatty acids by mean of gas-chromatography, in feces from 63 preterm newborns and determined their weight-gain during the first months...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28223423/modulating-therapeutic-activity-and-toxicity-of-pyrrolobenzodiazepine-antibody-drug-conjugates-with-self-immolative-disulfide-linkers
#7
Thomas H Pillow, Melissa Schutten, Shang-Fan Yu, Rachana Ohri, Jack Sadowsky, Kirsten Achilles Poon, Willy Solis, Fiona Zhong, Geoffrey Del Rosario, Mary Ann T Go, Jeffery Lau, Sharon Yee, Jintang He, Luna Liu, Carl Ng, Keyang Xu, Douglas D Leipold, Amrita V Kamath, Donglu Zhang, Luke Masterson, Stephen J Gregson, Philip W Howard, Fan Fang, Jinhua Chen, Janet Gunzner-Toste, Katherine K Kozak, Susan Spencer, Paul Polakis, Andrew G Polson, John A Flygare, Jagath R Junutula
A novel disulfide linker was designed to enable a direct connection between cytotoxic pyrrolobenzodiazepine (PBD) drugs and the cysteine on a targeting antibody for use in antibody-drug conjugates (ADCs). ADCs composed of a cysteine-engineered antibody were armed with a PBD using a self-immolative disulfide linker. Both the chemical linker and the antibody site were optimized for this new bioconjugation strategy to provide a highly stable and efficacious ADC. This novel disulfide ADC was compared to a conjugate containing the same PBD drug, but attached to the antibody via a peptide linker...
February 21, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28217621/refractory-anemia-in-human-immunodeficiency-virus-expect-the-unexpected
#8
Sumeet Prakash Mirgh, Vikas A Mishra, Virti D Shah, Jehangir Soli Sorabjee
Pure red cell aplasia (PRCA) is an uncommon hematological disorder affecting selectively the erythroid cell lines. PRCA is defined as anemia with normal leukocyte and platelet counts, a corrected reticulocyte count <1%, <5% erythroid precursors in the bone marrow and an absence of hemolysis. We describe a case of Zidovudine (AZT) induced PRCA causing severe anemia in a patient taking antiretroviral therapy (ART) after 4 months of starting therapy and in whom all other causes were excluded. The hematological abnormalities resolved after AZT was replaced with tenofovir and the patient remained transfusion independent thereafter...
July 2016: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/28212884/desipramine-decreases-expression-of-human-and-murine-indoleamine-2-3-dioxygenases
#9
Alexandra K Brooks, Tiffany M Janda, Marcus A Lawson, Jennifer L Rytych, Robin A Smith, Cecilia Ocampo-Solis, Robert H McCusker
Abundant evidence connects depression symptomology with immune system activation, stress and subsequently elevated levels of kynurenine. Anti-depressants, such as the tricyclic norepinephrine/serotonin reuptake inhibitor desipramine (Desip), were developed under the premise that increasing extracellular neurotransmitter level was the sole mechanism by which they alleviate depressive symptomologies. However, evidence suggests that anti-depressants have additional actions that contribute to their therapeutic potential...
February 16, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28212839/incidence-and-prognosis-of-nosocomial-infection-after-recovering-of-cardiac-arrest-in-children
#10
Andrés Fernández, Ana Solís, Paloma Cañete, Jimena Del Castillo, Javier Urbano, Angel Carrillo, Jesús López-Herce
OBJECTIVE: to analyze the incidence of infection in children who have suffered an in-hospital cardiac arrest (CA) and the association with mortality. METHODS: A retrospective unicenter observational study on a prospective database with children between one month and 16 years old, who have suffered an in-hospital CA was performed. Clinical, analytical and monitorization data, treatment, mortality and cause of death were recorded. RESULTS: 57 children were studied (57...
February 16, 2017: Resuscitation
https://www.readbyqxmd.com/read/28212471/-management-of-ureteric-colic-with-ketorolac-and-nifedipin-vs-ketorolac-and-tamsulosin-in-the-emergency-room
#11
Álvaro J Montiel-Jarquín, Valeria M Rocha-Rocha, Hugo A Solís-Mendoza, María S Romero-Figueroa, Ivet Etchegaray-Morales, Ivan Alvarado-Ortega
BACKGROUND: Ureteric colic is the most common symptom of lithiasis. It is caused by the presence of stones accumulated in the renal papillae. These stones often migrate down the ureter, causing a ureteric colic, characterized by a severe pain in the lumbar region. The aim of this study was to compare the use of ketorolac and nifedipine vs. ketorolac and tamsulosin for the medical treatment of pain caused by stones in the lower ureter. METHODS: Longitudinal study of 150 patients of 21-years or older with stones in the lower third of the ureter...
2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28211311/oleiagrimonas-citrea-sp-nov-a-marine-bacterium-isolated-from-tidal-flat-sediment-and-emended-description-of-the-genus-oleiagrimonas-fang-et-al-2015-and-oleiagrimonas-soli
#12
Sung-Hyun Yang, Hyun-Seok Seo, Chi Nam Seong, Kae Kyoung Kwon
A Gram-negative, aerobic, rod-shaped (1.8-2.3 μm  0.4-0.6 μm), and motile marine bacterium, designated as MEBiC09124T was isolated from tidal flat sediment of the Suncheon Bay, South Korea. The 16S rRNA gene sequence analysis revealed that strain MEBiC09124T showed high similarity with the Oleiagrimonas soli 3.5XT (96.7%). Growth was observed at 18-38 OC (optimum 30 OC), at pH 4.0-8.5 (optimum pH 7.5) and with 0-6 % (optimum 2.5%) NaCl. The predominant cellular fatty acids were iso-C15 : 0 (22.6%), iso-C16 : 0 (16...
February 3, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28196530/r248g-cystic-fibrosis-transmembrane-conductance-regulator-mutation-in-three-siblings-presenting-with-recurrent-acute-pancreatitis-and-reproductive-issues-a-case-series
#13
Seiichi Villalona, Guillermo Glover-López, Juan Antonio Ortega-García, Rosa Moya-Quiles, Pedro Mondejar-López, Maria C Martínez-Romero, Mariano Rigabert-Montiel, María D Pastor-Vivero, Manuel Sánchez-Solís
BACKGROUND: Mutational combinations of the cystic fibrosis transmembrane conductance regulator, CFTR, gene have different phenotypic manifestations at the molecular level with varying clinical consequences for individuals possessing such mutations. Reporting cystic fibrosis transmembrane conductance regulator mutations is important in understanding the genotype-phenotype correlations and associated clinical presentations in patients with cystic fibrosis. Understanding the effects of mutations is critical in developing appropriate treatments for individuals affected with cystic fibrosis, non-classic cystic fibrosis, or cystic fibrosis transmembrane conductance regulator-related disorders...
February 15, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28193268/adipokines-insulin-resistance-and-adiposity-as-a-predictors-of-metabolic-syndrome-in-child-survivors-of-lymphoma-and-acute-lymphoblastic-leukemia-of-a-developing-country
#14
Lourdes Barbosa-Cortés, Mardia López-Alarcón, Juan Manuel Mejía-Aranguré, Miguel Klünder-Klünder, María Del Carmen Rodríguez-Zepeda, Hugo Rivera-Márquez, Alan de la Vega-Martínez, Jorge Martin-Trejo, Juan Shum-Luis, Karina Solis-Labastida, Enrique López-Aguilar, Guadalupe Matute-González, Roberto Bernaldez-Rios
BACKGROUND: There is a growing body of evidence indicating that pediatric survivors of cancer are at a greater risk of developing metabolic syndrome. This study evaluated some probable predictors of metabolic syndrome (MS), such as leptin and adiponectin concentrations, the leptin/adiponectin ratio, insulin resistance, and adiposity, in a sample of child survivors of lymphoma and leukemia in Mexico City. METHODS: Fifty two children (leukemia n = 26, lymphoma n = 26), who were within the first 5 years after cessation of therapy, were considered as eligible to participate in the study...
February 13, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28192532/role-of-arf-gtpases-in-fungal-morphogenesis-and-virulence
#15
Hayet Labbaoui, Stéphanie Bogliolo, Vikram Ghugtyal, Norma V Solis, Scott G Filler, Robert A Arkowitz, Martine Bassilana
Virulence of the human fungal pathogen Candida albicans depends on the switch from budding to filamentous growth, which requires sustained membrane traffic and polarized growth. In many organisms, small GTPases of the Arf (ADP-ribosylation factor) family regulate membrane/protein trafficking, yet little is known about their role in fungal filamentous growth. To investigate these GTPases in C. albicans, we generated loss of function mutants in all 3 Arf proteins, Arf1-Arf3, and 2 Arf-like proteins, Arl1 and Arl3...
February 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28185240/a-staging-system-for-correct-phenotype-interpretation-of-mouse-embryos-harvested-on-embryonic-day-14-e14-5
#16
Stefan H Geyer, Lukas Reissig, Julia Rose, Robert Wilson, Fabrice Prin, Dorota Szumska, Ramiro Ramirez-Solis, Catherine Tudor, Jacqui White, Timothy J Mohun, Wolfgang J Weninger
We present a simple and quick system for accurately scoring the developmental progress of mouse embryos harvested on embryonic day 14 (E14.5). Based solely on the external appearance of the maturing forelimb, we provide a convenient way to distinguish six developmental sub-stages. Using a variety of objective morphometric data obtained from the commonly used C57BL/6N mouse strain, we show that these stages correlate precisely with the growth of the entire embryo and its organs. Applying the new staging system to phenotype analyses of E14...
February 9, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28182783/correction-abacavir-lamivudine-plus-rilpivirine-is-an-effective-and-safe-strategy-for-hiv-1-suppressed-patients-48-week-results-of-the-simriki-retrospective-study
#17
Jesús Troya, Pablo Ryan, Esteban Ribera, Daniel Podzamczer, Victor Hontañón, Jose Alberto Terrón, Vicente Boix, Santiago Moreno, Pilar Barrufet, Manuel Castaño, Ana Carrero, María José Galindo, Ignacio Suárez-Lozano, Hernando Knobel, Miguel Raffo, Javier Solís, María Yllescas, Herminia Esteban, Juan González-García, Juan Berenguer, Arkaitz Imaz
[This corrects the article DOI: 10.1371/journal.pone.0164455.].
2017: PloS One
https://www.readbyqxmd.com/read/28180038/an-analysis-of-patients-treated-for-cerebrospinal-fluid-rhinorrhea-in-the-united-states-from-2002-to-2010
#18
Emily Marchiano, Eric T Carniol, Daniel E Guzman, Milap D Raikundalia, Soly Baredes, Jean Anderson Eloy
Background The Nationwide Inpatient Sample (NIS) database was used to analyze the demographic features and concomitant diagnoses in patients admitted with cerebrospinal fluid (CSF) rhinorrhea. Methods We analyzed the NIS database for all hospital admissions of CSF rhinorrhea between 2002 and 2010. Patient demographics, length of stay, hospital charges, concomitant diagnoses, hospital level characteristics, and complications were analyzed for patients undergoing surgical repair (group I) and for those treated without surgical repair (group II)...
February 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28176016/choline-induces-opposite-changes-in-pyramidal-neuron-excitability-and-synaptic-transmission-through-a-nicotinic-receptor-independent-process-in-hippocampal-slices
#19
E Albiñana, J G Luengo, A M Baraibar, M D Muñoz, L Gandía, J M Solís, J M Hernández-Guijo
Choline is present at cholinergic synapses as a product of acetylcholine degradation. In addition, it is considered a selective agonist for α5 and α7 nicotinic acetylcholine receptors (nAChRs). In this study, we determined how choline affects action potentials and excitatory synaptic transmission using extracellular and intracellular recording techniques in CA1 area of hippocampal slices obtained from both mice and rats. Choline caused a reversible depression of evoked field excitatory postsynaptic potentials (fEPSPs) in a concentration-dependent manner that was not affected by α7 nAChR antagonists...
February 8, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28166296/incidence-of-urinary-retention-during-treatment-with-single-tablet-combinations-of-solifenacin-tamsulosin-ocas%C3%A2-for-up-to-1-year-in-adult-men-with-both-storage-and-voiding-luts-a-subanalysis-of-the-neptune-neptune-ii-randomized-controlled-studies
#20
Marcus J Drake, Matthias Oelke, Robert Snijder, Monique Klaver, Klaudia Traudtner, Karin van Charldorp, Dominique Bongaerts, Philip Van Kerrebroeck
INTRODUCTION: The emergence of urinary retention (UR), specifically acute urinary retention (AUR), has been a concern when treating men with lower urinary tract symptoms (LUTS) with antimuscarinic drugs. MATERIALS AND METHODS: In NEPTUNE (12-week, double-blind), men (≥45 years) with LUTS were randomized to receive tamsulosin oral-controlled absorption system (TOCAS) 0.4 mg, fixed-dose combination (FDC) of solifenacin (Soli) 6 mg + TOCAS 0.4 mg, FDC Soli 9 mg + TOCAS 0...
2017: PloS One
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