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https://www.readbyqxmd.com/read/29679785/implications-in-studies-of-environmental-risk-assessments-does-culture-medium-influence-the-results-of-toxicity-tests-of-marine-bacteria
#1
Alejandra Díaz-García, Ana R Borrero-Santiago, Inmaculada Riba
Two marine bacterial populations (Roseobacter sp. and Pseudomonas litoralis) were exposed to different concentrations of zinc (300, 625, 1250, 2000, 2500 and 5000 mg L-1 ) and cadmium (75, 250, 340, 500 and 1000 mg L-1 ) using two culture media (full nutrient Marine Broth 2216 "MB" and 1:10 (vol/vol) dilution with seawater of Marine Broth 2216 "MBSW "), in order to assess population responses depending on the culture medium and also potential adverse effects associated with these two metals...
April 14, 2018: Chemosphere
https://www.readbyqxmd.com/read/29679764/meat-reintroduction-in-a-patient-with-alpha-gal-allergy
#2
Teresa Pelletier, Santiago Alvarez-Arango, F N U Sameeta, Ellen Manos, Elina Jerschow
No abstract text is available yet for this article.
April 18, 2018: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/29679149/totally-endoscopic-implant-to-effect-a-gastric-bypass-12-month-safety-and-efficacy-outcomes
#3
Bryan J Sandler, Laurent Biertho, Mehran Anvari, Roberto Rumbaut, Luis Alonso Morales-Garza, Gustavo Torres-Barrera, Simon Marceau, Dennis Hong, C Daniel Smith, Santiago Horgan
BACKGROUND: Only a small percentage of candidates for bariatric surgery ever undergo a procedure for weight loss. Devices duplicating key effects of bariatric surgeries with removable, fully trans-oral implants could extend their benefits to patients unwilling to undergo anatomy-altering abdominal surgeries. METHODS: Thirty-two obese subjects (mean BMI: 42.3) were enrolled in a prospective, multicenter, single-arm, feasibility trial of the first fully trans-oral endoscopic gastrointestinal bypass device...
April 20, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29678049/asynchronous-dermatology-teleconsultations-using-a-personal-health-record
#4
Fernando Plazzotta, Janine Arlette Sommer, Santiago Nicolás Marquez Fosser, Daniel Roberto Luna
Health information and communication technologies such as telemedicine provide alternatives for patient and physician communication. An increasing number of patients, providers and institutions are using this technologies to seek or provide health care. Asynchronous consultations requires a service of storing and forwarding health related information by the patient to the specialist physician or other healthcare provider. Dermatology is one of the major medical specialties in which telemedicine as proven benefits...
2018: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/29678004/user-evaluation-of-a-smartphone-application-for-anticoagulation-therapy
#5
Berglind Smaradottir, Santiago Martinez, Elizabeth Borycki, Gareth Loudon, Andre Kushniruk, Jarle Jortveit, Rune Fensli
Anticoagulation therapy with Warfarin is used for specific cardiovascular diseases to control the ability of blood clotting. Traditional ways of self-management therapy are based on paper forms and procedures. This paper presents an evaluation of the smartphone application Warfarin Guide, a computer-assisted decision-support system used to help patients in their management of anticoagulation therapy related to International Normalized Ratio (INR) values. The evaluation consisted of a usability test with 4 participants and a field test with 14 participants who used the application at home during four months...
2018: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/29677200/empirical-mode-decomposition-processing-to-improve-multifocal-visual-evoked-potential-signal-analysis-in-multiple-sclerosis
#6
Luis de Santiago, Eva Sánchez-Morla, Román Blanco, Juan Manuel Miguel, Carlos Amo, Miguel Ortiz Del Castillo, Almudena López, Luciano Boquete
OBJECTIVE: To study the performance of multifocal-visual-evoked-potential (mfVEP) signals filtered using empirical mode decomposition (EMD) in discriminating, based on amplitude, between control and multiple sclerosis (MS) patient groups, and to reduce variability in interocular latency in control subjects. METHODS: MfVEP signals were obtained from controls, clinically definitive MS and MS-risk progression patients (radiologically isolated syndrome (RIS) and clinically isolated syndrome (CIS))...
2018: PloS One
https://www.readbyqxmd.com/read/29676968/effects-of-daily-intake-of-calcium-and-vitamin-d-enriched-milk-in-healthy-postmenopausal-women-a-randomized-controlled-double-blind-nutritional-study
#7
Rebeca Reyes-Garcia, Nicolas Mendoza, Santiago Palacios, Nancy Salas, Miguel Quesada-Charneco, Antonia Garcia-Martin, Juristo Fonolla, Federico Lara-Villoslada, Manuel Muñoz-Torres
OBJECTIVE: To determine the effect of the daily intake of calcium and vitamin D-enriched milk (with or without fructooligosaccharides [FOS]) on vitamin D, bone metabolism, and cardiovascular risk factors. MATERIALS AND METHODS: Two-year randomized controlled study, including 500 healthy postmenopausal women, assigned to 500 mL/day of skimmed milk to one of three groups: Low-dose (L): (120 mg/100 mL calcium, vitamin D3 30 UI/100 mL), group A: calcium and vitamin D (180 mg/100 mL and 120 UI/100 mL), and group B: calcium and vitamin D (180 mg/100 mL and 120 UI/100 mL) and FOS (5 g/L)...
April 20, 2018: Journal of Women's Health
https://www.readbyqxmd.com/read/29673971/changes-in-trophoblasts-gene-expression-in-response-to-perchlorate-exposition
#8
De la Peña Sol, Santiago-Roque Isela, Olivo-Vidal Zendy, Navarro-Meza Mónica, Xochihua-Rosas Irene, Arroyo-Helguera Omar
Contaminated water with chlorates is a public health problem associated with iodine deficiency. Epidemiological evidence shows that iodine deficiency is a risk factor for preeclampsia (PE). In this study we use human BeWo trophoblast cells exposed to perchlorate (KClO4 ) and changes in gene expression were analyzed by microarrays, quantitative RT-PCR (qRT-PCR) and immunoblot. The microarray analysis identified 48 transcripts up-regulated and 112 down-regulated in comparison with non-exposed trophoblast. The qRT-PCR analysis confirmed changes in GAS7, PKP2, Emilin, Dynatic 3, protocadherins 11, 15, gamma A12, EGFR, SAFB1, ACE2, ANXA2, Apoliprotein E, SREBF1, and C/EBP-β...
April 16, 2018: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/29673772/widespread-enhancer-activity-from-core-promoters
#9
REVIEW
Alejandra Medina-Rivera, David Santiago-Algarra, Denis Puthier, Salvatore Spicuglia
Gene expression in higher eukaryotes is precisely regulated in time and space through the interplay between promoters and gene-distal regulatory regions, known as enhancers. The original definition of enhancers implies the ability to activate gene expression remotely, while promoters entail the capability to locally induce gene expression. Despite the conventional distinction between them, promoters and enhancers share many genomic and epigenomic features. One intriguing finding in the gene regulation field comes from the observation that many core promoter regions display enhancer activity...
April 16, 2018: Trends in Biochemical Sciences
https://www.readbyqxmd.com/read/29673021/bottom-up-synthesis-and-self-assembly-of-copper-clusters-into-permanent-excimer-supramolecular-nanostructures
#10
Beatriz Santiago-Gonzalez, Angelo Monguzzi, Chiara Capitani, Mirko Prato, Carlo Santambrogio, Francesco Meinardi, Sergio Brovelli
Metal cluster are promising nontoxic candidates in optoelectronics and photonics. Recently, clusters with appropriate molecular ligands have been demonstrated to be uniquely suitable as subnanometer building blocks for supramolecular architectures with controlled secondary interactions, providing access to physical regimes not achievable with conventional intermolecular motifs. A compelling example of this is the excimer photophysics exhibited by individual cluster-based superstructures produced by top-down etching of gold nanoparticles...
April 19, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29671691/committed-action-disability-and-perceived-health-in-individuals-with-fibromyalgia
#11
Santiago Galán, Rubén Roy, Ester Solé, Mélanie Racine, Rocío de la Vega, Mark P Jensen, Jordi Miró
Committed action, one of the components of psychological flexibility, has been shown to be related with measures of pain-relevant function domains in patients with chronic pain. However, the associations between measures of committed action and of physical health and function in individuals with fibromyalgia (FM) have not yet been examined. The aim of the present cross-sectional study was to better understand the role that committed action plays in (1) pain-related disability and (2) mental and physical health in individuals with FM...
April 19, 2018: Behavioral Medicine
https://www.readbyqxmd.com/read/29671577/metabolic-clustering-analysis-as-a-strategy-for-compound-selection-in-the-drug-discovery-pipeline-for-leishmaniasis
#12
Emily G Armitage, Joanna Godzien, Imanol Peña, Ángeles López-Gonzálvez, Santiago Angulo, Ana Gradillas, Vanesa Alonso-Herranz, Julio Martín, Jose M Fiandor, Michael P Barrett, Raquel Gabarro, Coral Barbas
A lack of viable hits, increasing resistance and limited knowledge on mode of action is hindering drug discovery for many diseases. To optimise prioritisation and accelerate the discovery process, a strategy to cluster compounds based on more than chemical structure is required. We show the power of metabolomics in comparing effects on metabolism of 28 different candidate treatments for Leishmaniasis (25 from the GSK Leishmania box, two analogues of Leishmania box series and amphotericin B as a gold standard treatment), tested in the axenic amastigote form of Leishmania donovani...
April 19, 2018: ACS Chemical Biology
https://www.readbyqxmd.com/read/29670112/stable-representation-of-sounds-in-the-posterior-striatum-during-flexible-auditory-decisions
#13
Lan Guo, William I Walker, Nicholas D Ponvert, Phoebe L Penix, Santiago Jaramillo
The neuronal pathways that link sounds to rewarded actions remain elusive. For instance, it is unclear whether neurons in the posterior tail of the dorsal striatum (which receive direct input from the auditory system) mediate action selection, as other striatal circuits do. Here, we examine the role of posterior striatal neurons in auditory decisions in mice. We find that, in contrast to the anterior dorsal striatum, activation of the posterior striatum does not elicit systematic movement. However, activation of posterior striatal neurons during sound presentation in an auditory discrimination task biases the animals' choices, and transient inactivation of these neurons largely impairs sound discrimination...
April 18, 2018: Nature Communications
https://www.readbyqxmd.com/read/29668883/deletion-of-delta-like-1-homologue-accelerates-fibroblast-myofibroblast-differentiation-and-induces-myocardial-fibrosis
#14
Patricia Rodriguez, Yassine Sassi, Luca Troncone, Ludovic Benard, Kiyotake Ishikawa, Ronald E Gordon, Santiago Lamas, Jorge Laborda, Roger J Hajjar, Djamel Lebeche
Aims: Myocardial fibrosis is associated with profound changes in ventricular architecture and geometry, resulting in diminished cardiac function. There is currently no information on the role of the delta-like homologue 1 (Dlk1) in the regulation of the fibrotic response. Here, we investigated whether Dlk1 is involved in cardiac fibroblast-to-myofibroblast differentiation and regulates myocardial fibrosis and explored the molecular mechanism underpinning its effects in this process. Methods and results: Using Dlk1-knockout mice and adenoviral gene delivery, we demonstrate that overexpression of Dlk1 in cardio-fibroblasts resulted in inhibition of fibroblast proliferation and differentiation into myofibroblasts...
April 13, 2018: European Heart Journal
https://www.readbyqxmd.com/read/29668881/hyperactive-ryanodine-receptors-in-human-heart-failure-and-ischemic-cardiomyopathy-reside-outside-of-couplons
#15
Eef Dries, Demetrio J Santiago, Guillaume Gilbert, Ilse Lenaerts, Bert Vandenberk, Chandan K Nagaraju, Daniel M Johnson, Patricia Holemans, H Llewelyn Roderick, Niall Macquaide, Piet Claus, Karin R Sipido
Aims: In ventricular myocytes from humans and large mammals, the transverse and axial tubular system (TATS) network is less extensive than in rodents with consequently a greater proportion of ryanodine receptors (RyRs) not coupled to this membrane system. TATS remodeling in heart failure (HF) and after myocardial infarction (MI) increases the fraction of non-coupled RyR. Here we investigate whether this remodeling alters the activity of coupled and non-coupled RyR sub-populations through changes in local signaling...
April 14, 2018: Cardiovascular Research
https://www.readbyqxmd.com/read/29668794/a-review-of-the-quaternary-scelidotheriinae-mammalia-xenarthra-tardigrada-from-the-tarija-padcaya-basin-bolivia
#16
Ángel R Miño-Boilini, Alfredo A Carlini, Alfredo E Zurita, Esteban Soibelzon, Santiago M Rodríguez-Bualó
The Mylodontidae Scelidotheriinae (Mammalia, Xenarthra, Tardigrada) are a diversified clade of South American fossil ground sloths, with a wide geographic distribution, especially in high and middle latitudes. According to the last revision, the Quaternary diversity includes the genera Scelidotherium, Catonyx, and Valgipes. The clade Scelidotheriinae is well represented in the Pleistocene of the Tarija-Padcaya basin, and the first mention of these ground sloths correspond to the middle of the XIX Century. Since then, several species (i...
April 16, 2018: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29668600/chilean-gastric-cancer-task-force-a-study-protocol-to-obtain-a-clinical-and-molecular-classification-of-a-cohort-of-gastric-cancer-patients
#17
Gareth I Owen, Mauricio P Pinto, Ignacio N Retamal, María F Fernádez, Betzabe Cisternas, Sebastian Mondaca, Cesar Sanchez, Hector Galindo, Bruno Nervi, Carolina Ibañez, Francisco Acevedo, Jorge Madrid, José Peña, Maria Loreto Bravo, Maria Jose Maturana, Miguel Cordova-Delgado, Diego Romero, Nathaly de la Jara, Javiera Torres, Maria Rodriguez-Fernandez, Manuel Espinoza, Carlos Balmaceda, Matías Freire, Valentina Gárate-Calderón, Fernando Crovari, Paula Jimenez-Fonseca, Alberto Carmona-Bayonas, Ariel Zwenger, Ricardo Armisen, Alejandro H Corvalan, Marcelo Garrido
Gastric cancer (GC) is the world's second-leading cause of neoplastic mortality. Genetic alterations, response to treatments, and mortality rates are highly heterogeneous across different regions. Within Latin America, GC is the leading cause of cancer death in Chile, affecting 17.6 per 100,000 people and causing >3000 deaths/y. Clinical outcomes and response to "one size fits all" therapies are highly heterogeneous and thus a better stratification of patients may aid cancer treatment and response...
April 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29668132/-shtlv-i-ii-seroprevalence-in-blood-donors-of-hospital-pablo-tob%C3%A3-n-uribe-blood-bank-during-the-period-2014-2015
#18
Manuela Muñoz, Santiago Carvalho, Jorge Hernando Donado, Gloria Eugenia Barco, Sergio Jaramillo
INTRODUCTION: The human-T cell lymphotropic virus is a retrovirus with various types known so far. HTLV-I and HTLV-II are of clinically importance as they cause different diseases such as adult T-cell leukemia/lymphoma, tropical spastic paraparesis, and human T-lymphotropic virus type I-associated myelopathy (HAM). OBJECTIVE: To estimate the prevalence of presumptive and confirmatory reactivity to HTLV-I/II in blood donors of Hospital Pablo Tobón Uribe Blood Bank between 2014 and 2015...
March 15, 2018: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/29667115/biopsy-feasibility-trial-for-breast-cancer-pathologic-complete-response-detection-after-neoadjuvant-chemotherapy-imaging-assessment-and-correlation-endpoints
#19
Gaiane M Rauch, Henry M Kuerer, Beatriz Adrada, Lumarie Santiago, Tanya Moseley, Rosalind P Candelaria, Elsa Arribas, Jia Sun, Jessica W T Leung, Savitri Krishnamurthy, Wei T Yang
PURPOSE: This study was designed to present the secondary imaging endpoints of the trial for evaluating mammogram (MMG), ultrasound (US) and image guided biopsy (IGBx) assessment of pathologic complete response (pCR) in breast cancer (BC) patients undergoing neoadjuvant chemotherapy (NAC). METHODS: Patients with T1-3, N0-3, M0 triple-negative or HER2-positive BC who received NAC were enrolled in an Institutional Review Board-approved prospective, clinical trial...
April 17, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29666790/efficient-mechanochemical-bifunctional-nanocatalysts-for-the-conversion-of-isoeugenol-to-vanillin
#20
Somayeh Ostovar, Ana Franco, Alain R Puente-Santiago, María Pinilla-de Dios, Daily Rodríguez-Padrón, Hamid R Shaterian, Rafael Luque
A bifunctional nanocatalyst composed of iron containing SBA-15 material modified with sulfonic acid groups was synthesized by a mechanochemical approach. A full characterization of the obtained nanocatalyst was performed by N2 physisorption isotherms analysis, transmission electron microscopy (TEM), X-ray powder diffraction (XRD) and Fourier-Infrared Spectroscopy (FT-IR). The mechanochemically synthesized nanocatalyst displays a high isoeugenol conversion to vanillin under mild conditions using H2 O2 as oxidizing agent...
2018: Frontiers in Chemistry
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