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https://www.readbyqxmd.com/read/28214945/characterization-of-tunneling-nanotubes-in-wharton-s-jelly-mesenchymal-stem-cells-an-intercellular-exchange-of-components-between-neighboring-cells
#1
Viviana Sanchez, Nerina Villalba, Luciano Fiore, Carlos Luzzani, Santiago Miriuka, Alberto Boveris, Ricardo J Gelpi, Alicia Brusco, Juan José Poderoso
Intercellular communication is one of the most important events in cell population behavior. In the last decade, tunneling nanotubes (TNTs) have been recognized as a new form of long distance intercellular connection. TNT function is to allow molecular and subcellular structure exchange between neighboring cells via the transfer of molecules and organelles such as calcium ions, prions, viral and bacterial pathogens, small lysosomes and mitochondria. New findings support the concept that mesenchymal stem cells (MSCs) can affect cell microenvironment by the release of soluble factors or the transfer of cellular components to neighboring cells, in a way which significantly contributes to cell regulation and tissue repair, although the underlying mechanisms remain poorly understood...
February 18, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28214009/trophic-magnification-of-dechlorane-plus-in-the-marine-food-webs-of-fildes-peninsula-in-antarctica
#2
Guangshui Na, Yao Yao, Hui Gao, Ruijing Li, Linke Ge, Ivan A Titaley, Lisandra Santiago-Delgado, Staci L Massey Simonich
The food web composition, assimilation efficiency of Dechlorane Plus (DP) in food web components, and even extrinsic conditions can affect the trophic biomagnification potentials of DP isomers in food webs. Antarctica ecological system is characterized by the presence of few consumers and simple trophic levels (TLs), which are crucial in discussing the behavior of contaminants. To assess the biomagnification potential of DP in the Antarctic food web, nine representative species were sampled and analyzed from the Fildes Peninsula...
February 14, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28212906/utility-of-failure-mode-and-effect-analysis-to-improve-safety-in-suctioning-by-orotracheal-tube
#3
Agustín Vázquez-Valencia, Andrés Santiago-Sáez, Bernardo Perea-Pérez, Elena Labajo-González, Maria Elena Albarrán-Juan
OBJECTIVE: The objective of the study was to use the Failure Mode and Effect Analysis (FMEA) tool to analyze the technique of secretion suctioning on patients with an endotracheal tube who were admitted into an intensive care unit. MATERIALS AND METHODS: Brainstorming was carried out within the service to determine the potential errors most frequent in the process. After this, the FMEA was applied, including its stages, prioritizing risk in accordance with the risk prioritization number (RPN), selecting improvement actions in which they have an RPN of more than 300...
February 2017: Journal of Perianesthesia Nursing: Official Journal of the American Society of PeriAnesthesia Nurses
https://www.readbyqxmd.com/read/28211866/response-to-protocol-review-scenario-new-procedure-requires-iacuc-review
#4
Deyanira Santiago, Ann Marie Dinkel
No abstract text is available yet for this article.
February 17, 2017: Lab Animal
https://www.readbyqxmd.com/read/28211717/isomeric-character-of-the-lowest-observed-4-state-in-44-s
#5
J J Parker, I Wiedenhöver, P D Cottle, J Baker, D McPherson, M A Riley, D Santiago-Gonzalez, A Volya, V M Bader, T Baugher, D Bazin, A Gade, T Ginter, H Iwasaki, C Loelius, C Morse, F Recchia, D Smalley, S R Stroberg, K Whitmore, D Weisshaar, A Lemasson, H L Crawford, A O Macchiavelli, K Wimmer
Previous experiments observed a 4^{+} state in the N=28 nucleus ^{44}S and suggested that this state may exhibit a hindered E2-decay rate, inconsistent with being a member of the collective ground state band. We populate this state via two-proton knockout from a beam of exotic ^{46}Ar projectiles and measure its lifetime using the recoil distance method with the GRETINA γ-ray spectrometer. The result, 76(14)_{stat}(20)_{syst}  ps, implies a hindered transition of B(E2;4^{+}→2_{1}^{+})=0.61(19) single-particle or Weisskopf units strength and supports the interpretation of the 4^{+} state as a K=4 isomer, the first example of a high-K isomer in a nucleus of such low mass...
February 3, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28211283/gallstone-ileus-presenting-as-obstructive-gangrenous-appendicitis
#6
José Cruz-Santiago, Giuseppe Briceño-Sáenz, Javier García-Álvarez, José Luis Beristain-Hernández
We present the very unusual case of a 38-year-old woman with acute appendicitis and intestinal obstruction. During surgery, a 2.5 cm gallstone impacted at the base of the cecal appendix was found as the cause of a gangrenous appendicitis and obstruction; a choledochal-duodenal fistula was found during the same surgery with no gallstones remaining in the gallbladder or elsewhere. The case was managed by appendectomy with retrieval of the gallstones and no other procedure was performed for the gallbladder or the fistula, since no other gallstone was found on examination...
February 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28211202/role-of-modular-polyketide-synthases-in-the-production-of-polyether-ladder-compounds-in-ciguatoxin-producing-gambierdiscus-polynesiensis-and-g-excentricus-dinophyceae
#7
Gurjeet S Kohli, Katrina Campbell, Uwe John, Kirsty F Smith, Santiago Fraga, Lesley L Rhodes, Shauna A Murray
Gambierdiscus, a benthic dinoflagellate, produces ciguatoxins that cause the human illness Ciguatera. Ciguatoxins are polyether ladder compounds that have a polyketide origin, indicating that polyketide synthases (PKS) are involved in their production. We sequenced transcriptomes of G. excentricus and G. polynesiensis and found 264 contigs encoding single domain ketoacyl synthases (KS; G. excentricus: 106, G. polynesiensis: 143) and ketoreductases (KR; G. excentricus: 7, G. polynesiensis: 8) with sequence similarity to type I PKSs, as reported in other dinoflagellates...
February 17, 2017: Journal of Eukaryotic Microbiology
https://www.readbyqxmd.com/read/28211066/how-computational-methods-and-relativistic-effects-influence-the-study-of-chemical-reactions-involving-ru-no-complexes
#8
Renato Pereira Orenha, Régis Tadeu Santiago, Roberto Luiz Andrade Haiduke, Sérgio Emanuel Galembeck
Two treatments of relativistic effects, namely effective core potentials (ECP) and all-electron scalar relativistic effects (DKH2), are used to obtain geometries and chemical reaction energies for a series of ruthenium complexes in B3LYP/def2-TZVP calculations. Specifically, the reaction energies of reduction (A-F), isomerization (G-I), and Cl(-) negative trans influence in relation to NH3 (J-L) are considered. The ECP and DKH2 approaches provided geometric parameters close to experimental data and the same ordering for energy changes of reactions A-L...
February 16, 2017: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/28211009/pneumococcal-predictive-proteins-selected-by-microbial-genomic-approach-are-serotype-cross-reactive-and-bind-to-host-extracellular-matrix-proteins
#9
Ana Paula Corrêa Argondizzo, Cláudio Marcos Rocha-de-Souza, Marta de Almeida Santiago, Ricardo Galler, Joice Neves Reis, Marco Alberto Medeiros
Streptococcus pneumoniae is a colonizer of the human nasopharynx, which accounts for most of the community-acquired pneumonia cases and can cause non-invasive and invasive diseases. Current available vaccines are serotype-specific and the use of recombinant proteins associated with virulence is an alternative to compose vaccines and to overcome these problems. In a previous work, we describe the identification of proteins in S. pneumoniae by reverse vaccinology and the genetic diversity of these proteins in clinical isolates...
February 17, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28210440/analytical-parameters-and-vital-signs-in-patients-subjected-to-dental-extraction
#10
Enric Jané-Pallí, Carlos Arranz-Obispo, Beatriz González-Navarro, Jesús Murat, Raúl Ayuso-Montero, Santiago Rojas, Amparo Santamaría, Enric Jané-Salas, José López-López
BACKGROUND: Dental consultation may provoke stress to the patient, especially when a dental surgery is going to be performed, stressful situations can cause a reaction in the sympathetic nervous system that could lead to cardiovascular alterations. Blood pressure and cardiac frequency are used often as an indirect measurement and this parameters combined can serve as good indicators of stress. Objective: Analyze the changes in vital signs and analytical parameters induced by a dental extraction...
February 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28210335/training-level-does-not-affect-auditory-perception-of-the-magnitude-of-ball-spin-in-table-tennis
#11
Daniel P R Santos, Roberto N Barbosa, Luiz H P Vieira, Paulo R P Santiago, Alessandro M Zagatto, Matheus M Gomes
Identifying the trajectory and spin of the ball with speed and accuracy is critical for good performance in table tennis. The aim of this study was to analyze the ability of table tennis players presenting different levels of training/experience to identify the magnitude of the ball spin from the sound produced when the racket hit the ball. Four types of "forehand" contact sounds were collected in the laboratory, defined as: Fast Spin (spinning ball forward at 140 r/s); Medium Spin (105 r/s); Slow Spin (84 r/s); and Flat Hit (less than 60 r/s)...
January 1, 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28210230/acute-mental-discomfort-associated-with-suicide-behavior-in-a-clinical-sample-of-patients-with-affective-disorders-ascertaining-critical-variables-using-artificial-intelligence-tools
#12
Susana Morales, Jorge Barros, Orietta Echávarri, Fabián García, Alex Osses, Claudia Moya, María Paz Maino, Ronit Fischman, Catalina Núñez, Tita Szmulewicz, Alemka Tomicic
AIM: In efforts to develop reliable methods to detect the likelihood of impending suicidal behaviors, we have proposed the following. OBJECTIVE: To gain a deeper understanding of the state of suicide risk by determining the combination of variables that distinguishes between groups with and without suicide risk. METHOD: A study involving 707 patients consulting for mental health issues in three health centers in Greater Santiago, Chile. Using 345 variables, an analysis was carried out with artificial intelligence tools, Cross Industry Standard Process for Data Mining processes, and decision tree techniques...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28209812/sequencing-and-de-novo-assembly-of-the-complete-chloroplast-genome-of-the-peruvian-carrot-arracacia-xanthorrhiza-bancroft
#13
Javier Santiago Alvarado, Diane Hinojosa López, Isaury Maldonado Torres, María Margarita Meléndez, Rosalinda Aybar Batista, Vivek K Raxwal, Juan A Negrón Berríos, Alok Arun
Arracacia xanthorrhiza is an important secondary food crop in South America and Puerto Rico. The lack of crop protection and improvement strategies leads to infections damaging the storage roots. Here, we report the annotated complete chloroplast genome sequence of A. xanthorrhiza as a step toward developing genomic resources for this crop.
February 16, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28208220/allergic-respiratory-disease-different-allergens-different-symptoms
#14
Antonio Valero, Santiago Quirce, Ignacio Dávila, Julio Delgado, Javier Domínguez-Ortega
BACKGROUND: Spanish population is rather homogeneous in its genetic and socio-cultural characteristics, but allergen sensitization shows wide geographical variations. We aimed at assessing whether sensitization to different allergens in the diverse geographical areas induced different clinical and quality of life characteristics in adult patients with a first-time diagnosis of rhinitis and/or asthma. METHODS: Two sequential, identically designed studies were carried out to evaluate such associations (PERFILAR I and II)...
February 16, 2017: Allergy
https://www.readbyqxmd.com/read/28206795/maternal-anxiety-predicts-attentional-bias-towards-threat-in-infancy
#15
Santiago Morales, Kayla M Brown, Bradley C Taber-Thomas, Vanessa LoBue, Kristin A Buss, Koraly E Pérez-Edgar
Although cognitive theories of psychopathology suggest that attention bias toward threat plays a role in the etiology and maintenance of anxiety, there is relatively little evidence regarding individual differences in the earliest development of attention bias toward threat. The current study examines attention bias toward threat during its potential first emergence by evaluating the relations between attention bias and known risk factors of anxiety (i.e., temperamental negative affect and maternal anxiety)...
February 16, 2017: Emotion
https://www.readbyqxmd.com/read/28205429/-pneumococcal-arthritis-in-paediatric-population
#16
G Barbeito-Castiñeiras, M Guinda-Giménez, O Cores-Calvo, M Hernández-Blanco, F Pardo-Sánchez
OBJECTIVE: Cases of septic arthritis in paediatric population by Streptococcus pneumoniae in the Health Area of Santiago de Compostela (Spain) were reviewed. METHODS: A retrospective study from January 2005 to March 2014 was conducted for all S. pneumoniae isolates obtained from joint fluids in children. RESULTS: From the 7,416 joint fluids received in the Microbiology Department, 77 belonged to paediatric patients, and of these, only 8 had positive culture...
February 16, 2017: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/28205240/the-influence-of-climatic-niche-preferences-on-the-population-genetic-structure-of-a-mistletoe-species-complex
#17
Santiago Ramírez-Barahona, Clementina González, Antonio González-Rodríguez, Juan Francisco Ornelas
The prevalent view on genetic structuring in parasitic plants is that host-race formation is caused by varying degrees of host specificity. However, the relative importance of ecological niche divergence and host specificity to population differentiation remains poorly understood. We evaluated the factors associated with population differentiation in mistletoes of the Psittacanthus schiedeanus complex (Loranthaceae) in Mexico. We used genetic data from chloroplast sequences and nuclear microsatellites to study population genetic structure and tested its association with host preferences and climatic niche variables...
February 16, 2017: New Phytologist
https://www.readbyqxmd.com/read/28205025/the-multistate-tuberculosis-pharmacometric-model-a-semi-mechanistic-pharmacokinetic-pharmacodynamic-model-for-studying-drug-effects-in-an-acute-tuberculosis-mouse-model
#18
Chunli Chen, Fatima Ortega, Joaquin Rullas, Laura Alameda, Iñigo Angulo-Barturen, Santiago Ferrer, Ulrika Sh Simonsson
The Multistate Tuberculosis Pharmacometric (MTP) model, a pharmacokinetic-pharmacodynamic disease model, has been used to describe the effects of rifampicin on Mycobacterium tuberculosis (M. tuberculosis) in vitro. The aim of this work was to investigate if the MTP model could be used to describe the rifampicin treatment response in an acute tuberculosis mouse model. Sixty C57BL/6 mice were intratracheally infected with M. tuberculosis H37Rv strain on Day 0. Fifteen mice received no treatment and were sacrificed on Days 1, 9 and 18 (5 each day)...
February 15, 2017: Journal of Pharmacokinetics and Pharmacodynamics
https://www.readbyqxmd.com/read/28204882/comparison-between-vaginal-and-sublingual-misoprostol-50%C3%A2-%C3%A2%C2%B5g-for-cervical-ripening-prior-to-induction-of-labor-randomized-clinical-trial
#19
Andrés Conde, Sebastián Ben, Josefina Tarigo, Santiago Artucio, Virginia Varela, Pamela Grimaldi, Claudio Sosa, Justo Alonso
OBJECTIVE: To compare the effectiveness and safety of sublingual versus vaginal misoprostol on improving the Bishop score after 6 h of administration. METHODS: Randomized clinical trial which includes pregnant women in gestational ages from 32/0 to 41/6, with indication of induction of labor with misoprostol. Bishop score was assessed at the time of induction and 6 h after administration of 50 µg misoprostol. Analysis was made over difference in mean Bishop score of 2 points, using a standard deviation of 2, with 90% power, reaching a 95% confidence interval...
February 16, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28204769/information-management-system-supporting-a-multiple-property-survey-program-with-legacy-radioactive-contamination
#20
Ron Stager, Douglas Chambers, Gerd Wiatzka, Monica Dupre, Micah Callough, John Benson, Erwin Santiago, Walter van Veen
No abstract text is available yet for this article.
February 13, 2017: Radiation Protection Dosimetry
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