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J Vega

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https://www.readbyqxmd.com/read/28806498/pacinian-corpuscles-in-human-lymph-nodes
#1
J Feito, J L Cobo, A Santos-Briz, J A Vega
The occurrence of Pacinian corpuscles associated to lymph nodes is an anatomical rarity and very scarce information exists in this regard. Here we examined immunohistochemically four Pacinian corpuscles found in the close vicinity of the hiliar blood vessels of lymph nodes (2 cervical, 1 axillary, and 1 inguinal) during routine surgical pathology. Pacinian corpuscles were normally arranged and displayed a pattern of protein distribution as follows: the axon was positive for neurofilament proteins and neuron specific enolase, the inner core cells showed intense S100 protein and vimentin immunostaining while they were negative for glial fibrillary acidic protein, type IV collagen and glucose transporter 1; vimentin, type IV collagen, and glucose transporter 1 were also observed also in the outer-core and the capsule...
August 14, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28801789/multimodal-laser-ablation-desorption-imaging-analysis-of-zn-and-mmp-11-in-breast-tissues
#2
Raquel González de Vega, María Luisa Fernández Sanchez, Noemí Eiro, Francisco J Vizoso, Michael Sperling, Uwe Karst, Alfredo Sanz Medel
Matrix metalloproteinases (MMPs) are a family of zinc-dependent endopeptidases. The main functions of these metalloproteinases are the degradation of the stromal connective tissue and basement membrane components. Recent data from model systems suggest that MMPs are involved in breast cancer (BC) initiation, invasion, and metastasis. Particularly, MMP-11 (stromelysin-3) is expressed in stromal fibroblasts adjacent to epithelial tumor cells, and high levels of this metalloproteinase were associated with tumor progression and poor prognosis of BC...
August 12, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28799362/on-the-time-required-to-freeze-water
#3
J R Espinosa, C Navarro, E Sanz, C Valeriani, C Vega
By using the seeding technique the nucleation rate for the formation of ice at room pressure will be estimated for the TIP4P/ICE model using longer runs and a smaller grid of temperatures than in the previous work. The growth rate of ice will be determined for TIP4P/ICE and for the mW model of water. Although TIP4P/ICE and mW have a similar melting point and melting enthalpy, they differ significantly in the dynamics of freezing. The nucleation rate of mW is lower than that of TIP4P/ICE due to its higher interfacial free energy...
December 7, 2016: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28792546/host-plant-driven-transcriptome-plasticity-in-the-salivary-glands-of-the-cabbage-looper-trichoplusia-ni
#4
Loren J Rivera-Vega, David A Galbraith, Christina M Grozinger, Gary W Felton
Generalist herbivores feed on a wide array of plants and need to adapt to varying host qualities and defenses. One of the first insect derived secretions to come in contact with the plant is the saliva. Insect saliva is potentially involved in both the pre-digestion of the host plant as well as induction/suppression of plant defenses, yet how the salivary glands respond to changes in host plant at the transcriptional level is largely unknown. The objective of this study was to determine how the labial salivary gland transcriptome varies according to the host plant on which the insect is feeding...
2017: PloS One
https://www.readbyqxmd.com/read/28782440/colloidal-synthesis-of-biocompatible-iron-disulphide-nanocrystals
#5
J Santos-Cruz, R E Nuñez-Anita, S A Mayén-Hernández, O Martínez-Alvarez, L S Acosta-Torres, J de la Fuente-Hernández, E Campos-González, M Vega-González, M C Arenas-Arrocena
The aim of this research was to synthesis biocompatible iron disulphide nanocrystals at different reaction temperatures using the colloidal synthesis methodology. Synthesis was conducted at the 220-240 °C range of reaction temperatures at intervals of 5 °C in an inert argon atmosphere. The toxicity of iron disulphide nanocrystals was evaluated in vitro using mouse fibroblast cell line. Two complementary assays were conducted: the first to evaluate cell viability of the fibroblast via an MTT assay and the second to determine the preservation of fibroblast nuclei integrity through DAPI staining, which labels nuclear DNA in fluorescence microscopes...
August 6, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28777005/predicting-two-year-mortality-from-discharge-after-acute-coronary-syndrome-an-internationally-based-risk-score
#6
Stuart J Pocock, Yong Huo, Frans Van de Werf, Simon Newsome, Chee Tang Chin, Ana Maria Vega, Jesús Medina, Héctor Bueno
BACKGROUND: Long-term risk of post-discharge mortality associated with acute coronary syndrome remains a concern. The development of a model to reliably estimate two-year mortality risk from hospital discharge post-acute coronary syndrome will help guide treatment strategies. METHODS: EPICOR (long-tErm follow uP of antithrombotic management patterns In acute CORonary syndrome patients, NCT01171404) and EPICOR Asia (EPICOR Asia, NCT01361386) are prospective observational studies of 23,489 patients hospitalized for an acute coronary syndrome event, who survived to discharge and were then followed up for two years...
August 1, 2017: European Heart Journal. Acute Cardiovascular Care
https://www.readbyqxmd.com/read/28770909/encapsidated-ultrasmall-nanolipospheres-as-novel-nanocarriers-for-highly-hydrophobic-anticancer-drugs
#7
M Loredo-Tovias, A L Duran-Meza, M V Villagrana-Escareño, R Vega-Acosta, E Reynaga-Hernández, Ll M Flores-Tandy, O E Valdes-Resendiz, R D Cadena-Nava, E R Alvizo-Paez, J Ruiz-Garcia
The design and construction of novel nanocarriers that have controlled shape and size and are made of inherently biocompatible components represents a milestone in the field of nanomedicine. Here, we show the tailoring of nanoliposphere-like particles for use as biocompatible drug nanocarriers. They are made with the building block components present in human lipoproteins by means of microfluidization, which allows for good size and polydispersity control, mimicking the physical properties of natural low-density lipoproteins (LDLs)...
August 3, 2017: Nanoscale
https://www.readbyqxmd.com/read/28763308/revascularization-strategies-and-in-hospital-management-in-acute-coronary-syndromes-complicated-by-hemophilia-a-or-hemophilia-b
#8
Matthew J Reilley, Anne Blair, William H Matthai, Rolando Vega, Meghan Buckley, Phyllis A Gimotty, Patrick F Fogarty
: Among adult patients with hemophilia A and hemophilia B the emergent management of acute coronary syndromes (ACSs) is challenging, and exposure to antithrombotic agents and/or revascularization procedures may confer an enhanced risk of bleeding. We sought to identify clinical characteristics and in-hospital outcomes among ACS patients with hemophilia A/hemophilia B, compared with matched noncoagulopathic ACS controls. Case discharges from the Nationwide Inpatient Sample, Healthcare Cost and Utilization Project, Agency for Healthcare Research and Quality (1998-2011) had International Classification of Diseases, 9th Revision codes for hemophilia A/hemophilia B and ACS...
July 29, 2017: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/28762418/correction-analysis-of-local-molecular-motions-of-aromatic-sidechains-in-proteins-by-2d-and-3d-fast-mas-nmr-spectroscopy-and-quantum-mechanical-calculations
#9
Piotr Paluch, Tomasz Pawlak, Agata Jeziorna, Julien Trébosc, Guangjin Hou, Alexander J Vega, Jean-Paul Amoureux, Martin Dracinsky, Tatyana Polenova, Marek J Potrzebowski
Correction for 'Analysis of local molecular motions of aromatic sidechains in proteins by 2D and 3D fast MAS NMR spectroscopy and quantum mechanical calculations' by Piotr Paluch et al., Phys. Chem. Chem. Phys., 2015, 17, 28789-28801.
August 9, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28759286/influence-of-electrodes-on-the-448-khz-electric-currents-created-by-radiofrequency-a-finite-element-study
#10
J Spottorno, C Gonzalez de Vega, M Buenaventura, A Hernando
Radiofrequency is a technology used in physical rehabilitation by physicians and physiotherapists for more than fifteen years, although there exist doubts on how it works. Indiba is a particular method that applies a voltage difference of 448 KHz between two electrodes, creating an electric current between them. These electrodes are an active one that is placed on different areas of the body and a passive one that is left on the same position during the treatment. There are two different types of active electrodes: the capacitive one and the resistive one...
July 31, 2017: Electromagnetic Biology and Medicine
https://www.readbyqxmd.com/read/28747021/characteristics-and-outcomes-of-medically-managed-patients-with-non-st-segment-elevation-acute-coronary-syndromes-insights-from-the-multinational-epicor-asia-study
#11
Chee Tang Chin, Tiong K Ong, Rungroj Krittayaphong, Stephen W-L Lee, Jitendra P S Sawhney, Hyo-Soo Kim, Angeles Alonso Garcia, Héctor Bueno, Stuart J Pocock, Vo T Nhan, Ana Vega, Nobuya Hayashi, Yong Huo
BACKGROUND: Many patients with non-ST-segment elevation acute coronary syndromes (NSTE-ACS) are medically managed without coronary revascularization. The reasons vary and may impact prognosis. METHODS: EPICOR Asia (NCT01361386) is a prospective study of hospital survivors post-ACS enrolled in 218 hospitals from 8 countries/regions in Asia (06/2011-05/2012). All medically managed NSTE-ACS patients were classified into 3 groups: 1) no coronary angiography (CAG-); 2) non-significant coronary artery disease (CAD) on angiogram (CAG+ CAD-); and 3) significant CAD (CAG+ CAD+)...
September 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28741731/the-evolutionary-history-of-the-dmrt3-gait-keeper-haplotype
#12
E A Staiger, M S Almén, M Promerová, S Brooks, E G Cothran, F Imsland, K Jäderkvist Fegraeus, G Lindgren, H Mehrabani Yeganeh, S Mikko, J L Vega-Pla, T Tozaki, C J Rubin, L Andersson
A previous study revealed a strong association between the DMRT3:Ser301STOP mutation in horses and alternate gaits as well as performance in harness racing. Several follow-up studies have confirmed a high frequency of the mutation in gaited horse breeds and an effect on gait quality. The aim of this study was to determine when and where the mutation arose, to identify additional potential causal mutations and to determine the coalescence time for contemporary haplotypes carrying the stop mutation. We utilized sequences from 89 horses representing 26 breeds to identify 102 SNPs encompassing the DMRT3 gene that are in strong linkage disequilibrium with the stop mutation...
July 25, 2017: Animal Genetics
https://www.readbyqxmd.com/read/28739022/component-resolved-diagnosis-in-hymenoptera-allergy
#13
REVIEW
D Antolín-Amérigo, B Ruiz-León, E Boni, T Alfaya-Arias, M Álvarez-Mon, J Barbarroja-Escudero, D González-de-Olano, C Moreno-Aguilar, M Rodríguez-Rodríguez, M J Sánchez-González, L Sánchez-Morillas, A Vega-Castro
Component-resolved diagnosis based on the use of well-defined, properly characterised and purified natural and recombinant allergens constitutes a new approach in the diagnosis of venom allergy. Prospective readers may benefit from an up-to-date review on the allergens. The best characterised venom is that of Apis mellifera, whose main allergens are phospholipase A2 (Api m1), hyaluronidase (Api m2) and melittin (Api m4). Additionally, in recent years, new allergens of Vespula vulgaris have been identified and include phospholipase A1 (Ves v1), hyaluronidase (Ves v2) and antigen 5 (Ves v5)...
July 21, 2017: Allergologia et Immunopathologia
https://www.readbyqxmd.com/read/28738835/incidence-of-and-risk-factors-for-nephrolithiasis-in-patients-with-gout-and-the-general-population-a-cohort-study
#14
A J Landgren, L T H Jacobsson, U Lindström, T Z S Sandström, P Drivelegka, L Björkman, E Fjellstedt, M Dehlin
BACKGROUND: Nephrolithiasis (NL) is known to be associated with gout, although there are few comparative studies on risk and risk factors for NL in gout compared to population cohorts. In this cohort study we investigated: (1) overall incidence of NL in gout (cases) and general population controls; (2) risk and risk factors (common comorbidities and medications) for first-time NL in cases and controls separately. METHODS: Cases (n = 29,968) and age-matched and sex-matched controls (n = 138,678) were identified from the regional healthcare database in western Sweden (VEGA)...
July 24, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28736853/tai-chi-for-risk-of-falls-a-meta-analysis
#15
Rafael Lomas-Vega, Esteban Obrero-Gaitán, Francisco J Molina-Ortega, Rafael Del-Pino-Casado
OBJECTIVES: To analyze the effectiveness of tai chi for falls prevention. DESIGN: Systematic review and meta-analysis. SETTING: Pubmed, Scopus, CINHAL, and Physiotherapy Evidence Database (PEDro) were searched to May 26, 2016. PARTICIPANTS: Older adult population and at-risk adults. INTERVENTION: Randomized controlled trials analyzing the effect of tai chi versus other treatments on risk of falls...
July 24, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28726319/ultrastructure-of-lingual-papillae-in-common-chimpanzee-pan-troglodytes-foetus-newborn-and-adult-specimens
#16
J F Pastor, M Barbosa, F J De Paz, I San José, M Levanti, J M Potau, J A Vega, R Cabo
Among primates, the two recognized species of chimpanzees (common chimpanzee, Pan troglodytes; pygmy chimpanzee, Pan paniscus) are considered to be the most similar to humans. Importantly, in mammals, the food intake behaviour largely determines the tongue morphology, including the type, proportion and distribution of gustatory and non-gustatory tongue papillae. The lingual papillae form during its development and mature in post-natal life depending on the different feeding. In this study, we have used scanning electron microscopy to analyse the age-related changes in the lingual papillae of foetal, newborn and adult P...
July 20, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28710509/x-shaped-inferior-extensor-retinaculum-and-its-doubtful-use-in-the-br%C3%A3-strom-gould-procedure
#17
M Dalmau-Pastor, F Malagelada, G M M J Kerkhoffs, M C Manzanares, J Vega
PURPOSE: The inferior extensor retinaculum (IER) is an aponeurotic structure located in the anterior aspect of the ankle. According to the literature, it can be used to reinforce a repair of the anterior talofibular ligament in ankle instability. Despite its usual description as an Y-shaped structure, it is still unclear which part of the retinaculum is used for this purpose, or if it is instead the crural fascia that is being used. The purpose of this study is to define the anatomical characteristics of the IER to better understand its role in the Broström-Gould procedure...
July 14, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28702545/direct-examination-of-the-relevance-for-folding-binding-and-electron-transfer-of-a-conserved-protein-folding-intermediate
#18
Emilio Lamazares, Sonia Vega, Patricia Ferreira, Milagros Medina, Juan J Galano-Frutos, Marta Martínez-Júlvez, Adrián Velázquez-Campoy, Javier Sancho
Near the minimum free energy basin of proteins where the native ensemble resides, partly unfolded conformations of slightly higher energy can be significantly populated under native conditions. It has been speculated that they play roles in molecular recognition and catalysis, but they might represent contemporary features of the evolutionary process without functional relevance. Obtaining conclusive evidence on these alternatives is difficult because it requires comparing the performance of a given protein when populating and when not populating one such intermediate, in otherwise identical conditions...
July 26, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28701170/antimicrobial-susceptibility-among-gram-positive-and-gram-negative-organisms-collected-from-the-latin-american-region-between-2004-and-2015-as-part-of-the-tigecycline-evaluation-and-surveillance-trial
#19
Silvio Vega, Michael J Dowzicky
BACKGROUND: The in vitro activity of tigecycline and comparator agents was evaluated against Gram-positive and Gram-negative isolates collected in Latin American centers between 2004 and 2015 as part of the Tigecycline Evaluation and Surveillance Trial (T.E.S.T.) global surveillance study. METHODS: Minimum inhibitory concentrations (MICs) were determined using the broth microdilution methodology according to the Clinical and Laboratory Standards Institute (CLSI) guidelines...
July 12, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28701040/in-situ-production-of-graphene-fiber-hybrid-structures
#20
Mandana Akia, Lee Cremar, Mircea Chipara, Edgar Munoz, Hilario Cortez, Hector de Santiago, Fernando J Rodriguez-Macias, Yadira I Vega-Cantú, Hamidreza Arandiyan, Hongyu Sun, Timothy P Lodge, Yuanbing Mao, Karen Lozano
We report a scalable method to obtain a new material where large graphene sheets form webs linking carbon fibers. Film-fiber hybrid nonwoven mats are formed during fiber processing and converted to carbon structures after a simple thermal treatment. This contrasts with multistep methods that attempt to mix previously prepared graphene and fibers, or require complicated and costly processes for deposition of graphene over carbon fibers. The developed graphene-fiber hybrid structures have seamless connections between graphene and fibers, and in fact the graphene "veils" extend directly from one fiber into another forming a continuous surface...
July 20, 2017: ACS Applied Materials & Interfaces
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