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https://www.readbyqxmd.com/read/28545225/state-of-art-of-cancer-pharmacogenomics-in-latin-american-populations
#1
REVIEW
Andrés López-Cortés, Santiago Guerrero, María Ana Redal, Angel Tito Alvarado, Luis Abel Quiñones
Over the past decades, several studies have shown that tumor-related somatic and germline alterations predicts tumor prognosis, drug response and toxicity. Latin American populations present a vast geno-phenotypic diversity due to the great interethnic and interracial mixing. This genetic flow leads to the appearance of complex characteristics that allow individuals to adapt to endemic environments, such as high altitude or extreme tropical weather. These genetic changes, most of them subtle and unexplored, could establish a mutational profile to develop new pharmacogenomic therapies specific for Latin American populations...
May 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28544787/analysis-of-adults-with-congenital-heart-disease-presenting-to-pediatric-emergency-departments-with-arrhythmias
#2
Shaun Mohan, Brady S Moffett, Wilson Lam, Caridad de la Uz, Christina Miyake, Santiago O Valdes, Jeffrey J Kim
OBJECTIVE: As survivors of congenital heart disease (CHD) continue to age, healthcare utilization by this population has increased. It is unknown how often these patients utilize the emergency department (ED) at children's hospitals and how arrhythmias play a role in their utilization of care. DESIGN: Using a retrospective cohort design, the Pediatric Hospital Information System (PHIS) database was investigated and we studied adults (≥18 years) with CHD (ACHD) who presented to pediatric EDs from 2004 to 2014...
May 22, 2017: Congenital Heart Disease
https://www.readbyqxmd.com/read/28544702/within-person-reproducibility-and-sensitivity-to-dietary-change-of-c15-0-and-c17-0-levels-in-dried-blood-spots-data-from-the-european-food4me-study
#3
Viviana Albani, Carlos Celis-Morales, Clare B O'Donovan, Marianne C Walsh, Clara Woolhead, Hannah Forster, Rosalind Fallaize, Anna L Macready, Cyril F M Marsaux, Santiago Navas-Carretero, Rodrigo San-Cristobal, Silvia Kolossa, Christina Mavrogianni, Christina P Lambrinou, George Moschonis, Magdalena Godlewska, Agnieszka Surwillo, Iwona Traczyk, Thomas E Gundersen, Christian A Drevon, Hannelore Daniel, Yannis Manios, J Alfredo Martinez, Wim H M Saris, Julie A Lovegrove, Michael J Gibney, Eileen R Gibney, John C Mathers, Ashley J Adamson, Lorraine Brennan
SCOPE: Previous work highlighted the potential of odd-chain length saturated fatty acids as potential markers of dairy intake. The aim of this study was to assess the reproducibility of these biomarkers and their sensitivity to changes in dairy intake. METHODS AND RESULTS: Fatty acid profiles and dietary intakes from food frequency questionnaires (FFQs) were measured three times over six months in the Food4Me Study. Reproducibility was explored through intra-class correlation coefficients (ICCs) and within-subject coefficients of variation (WCV)...
May 24, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28544130/adaptation-of-a-scale-to-measure-coping-strategies-in-informal-primary-caregivers-a-case-of-validation-with-small-samples
#4
Francisco Javier Rosas-Santiago, María Luisa Marván Garduño, Roberto Lagunes-Córdoba
BACKGROUND: The recovery process of a psychiatric patient is related to his primary informal caregiver's style of coping with stress. There is insufficient literature on validations of instruments that measure coping styles in this population. OBJECTIVE: To adapt and validate a scale to measure coping strategies in primary informal caregivers. METHOD: The adapted scale was based on the Extreme Coping Scale of López-Vázquez and Marván. Items from that scale were adapted for application to informal caregivers...
May 25, 2017: Journal of Psychiatric and Mental Health Nursing
https://www.readbyqxmd.com/read/28542428/age-dependent-electrical-and-morphological-remodeling-of-the-drosophila-heart-caused-by-herg-seizure-mutations
#5
Karen Ocorr, Alexander Zambon, Yoav Nudell, Santiago Pineda, Soda Diop, Min Tang, Takeshi Akasaka, Erika Taylor
Understanding the cellular-molecular substrates of heart disease is key to the development of cardiac specific therapies and to the prevention of off-target effects by non-cardiac targeted drugs. One of the primary targets for therapeutic intervention has been the human ether a go-go (hERG) K+ channel that, together with the KCNQ channel, controls the rate and efficiency of repolarization in human myocardial cells. Neither of these channels plays a major role in adult mouse heart function; however, we show here that the hERG homolog seizure (sei), along with KCNQ, both contribute significantly to adult heart function as they do in humans...
May 19, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28541049/synthesis-and-photophysical-and-photocatalytic-properties-of-a-highly-fluorinated-and-durable-phthalocyanine-peptide-bioconjugate-for-potential-theranostic-applications
#6
Erik N Carrión, Jenyffer Santiago, David Sabatino, Sergiu M Gorun
The functionalized, asymmetric fluoro-fluoroalkyl scaffold F48H7COOHPcZn (3) was used to prepare F48H7COOPcZn-6-amino-hexanoate-CTVALPGGYVRVC (5), a Pep42 peptide bioconjugate envisioned for photodynamic therapy, which can specifically target the GRP78 chaperone protein overexpressed and exclusively localized on some cancer cell surfaces. The analogous F48H7COOHPcCu (4) has also been prepared, and its single-crystal X-ray structure was elucidated. Despite reduced steric hindrance relative to the nonfunctionalized, single-site complexes of the F64Pc scaffold, no aggregation was detected in solution via UV-vis spectroscopy, for either 3, 4, or 5, consistent with the lack of π stacking observed for the crystalline 4...
May 25, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28540833/registries-on-peritoneal-surface-malignancies-through-out-the-world-their-use-and-their-options
#7
Victor J Verwaal, Beate Rau, Faek Jamali, François Noël Gilly, Heikki Takala, Ignace de Hingh, Ingvar Syk, Jorg Pelz, Jurgen Mulsow, Kurt van der Speeten, Shigeki Kusamura, Lene Iversen, Faheez Mohamed, Olivier Glehen, Rami Younan, Roman Yarema, Santiago Gonzalez-Moreno, Sarah O'Dwyer, Yukata Yonemura, Paul Sugarbaker
The treatment of peritoneal surface malignancies ranges from palliative care to full cytoreductive surgery (CRS) and Heated Intraperitoneal Chemotherapy HIPEC. Ongoing monitoring of patient recruitment and volume is usually carried out through dedicated registries. With multiple registries available worldwide, we sought to investigate the nature, extent and value of existing worldwide CRS and HIPEC registries. METHODS: A questionnaire was sent out to all known major treatment centres...
April 9, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28539614/the-ccr5-antagonist-maraviroc-reverses-hiv-1-latency-in-vitro-alone-or-in-combination-with-the-pkc-agonist-bryostatin-1
#8
María Rosa López-Huertas, Laura Jiménez-Tormo, Nadia Madrid-Elena, Carolina Gutiérrez, Sara Rodríguez-Mora, Mayte Coiras, José Alcamí, Santiago Moreno
A potential strategy to cure HIV-1 infection is to use latency reversing agents (LRAs) to eliminate latent reservoirs established in resting CD4+ T (rCD4+) cells. As no drug has been shown to be completely effective, finding new drugs and combinations are of increasing importance. We studied the effect of Maraviroc (MVC), a CCR5 antagonist that activates NF-κB, on HIV-1 replication from latency. HIV-1-latency models based on CCL19 or IL7 treatment, before HIV-1 infection were used. Latently infected primary rCD4+ or central memory T cells were stimulated with MVC alone or in combination with Bryostatin-1, a PKC agonist known to reverse HIV-1 latency...
May 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28539233/supplementation-action-with-ascorbic-acid-in-the-morphology-of-the-muscular-layer-and-reactive-acetylcholinesterase-neurons-of-ileum-of-mdx-mice
#9
Marcelo José Santiago Lisboa, Marília Fabiana De Oliveira Lima, Sandra Regina Stabille, Jacqueline Nelisis Zanoni, Karina Martinez Gagliardo, Melyna Soares Souto, Renivaldo Souza, Jodonai Barbosa Da Silva, Sônia Regina De Almeida Yokomizo, Edson Aparecido Liberti, Naianne Kelly Clebis
The Duchenne Muscular Dystrophy (DMD) is a genetic disorder characterized by the absence of dystrophin protein, causing severe myopathy from increases of oxidative stress. Injuries of intestinal muscle can compromise the myenteric plexus. This study aimed to evaluate the disorders occurred in the muscular layer and in the acetylcholinesterase myenteric neurons (ACHE-r) of ileum of mdx mice, and the effects of supplementation with ascorbic acid (AA) in both components. 30 male mice C57BL/10, and 30 male mice C57BL/10Mdx were separated according to the age and treatment (n=10/group): 30-days-old control group (C30); 30-days-old dystrophic group (D30); 60-days-old control group (C60); 60-days-old dystrophic group (D60); 60-days-old control group supplemented with AA (CS60); and 60-days-old dystrophic group supplemented with AA (DS60)...
May 17, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28538878/hidradenitis-suppurativa-epidemiological-study-of-cases-diagnosed-at-a-dermatological-reference-center-in-the-city-of-bauru-in-the-brazilian-southeast-state-of-s%C3%A3-o-paulo-between-2005-and-2015
#10
Tatiana Cristina Pedro Cordeiro de Andrade, Bruna Cortinóvis Vieira, Agnes Mayumi Nakano Oliveira, Tábata Yamasaki Martins, Tatiane Meira Santiago, Antônio Carlos Ceribelli Martelli
Background: Hidradenitis is a chronic inflammatory disease of the hair follicles. A treatment is necessary due to chronicity and psychological changes that patient present. Objective: To investigate epidemiological aspects and elaborate a risk group profile, promote early diagnosis and contribute to the knowledge about the disease. Methods: This cross-sectional descriptive study with retrospective analysis of medical records of 194 patients diagnosed with hidrosadenitis in a dermatological reference center in the city of Bauru (SP) between 2005 and 2015...
March 2017: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28538809/self-medication-among-nursing-students-in-the-state-of-amazonas-brazil
#11
Abel Santiago Muri Gama, Silvia Regina Secoli
Objective: To determine the prevalence of self-medication and associated factors among nursing students. Method: This is a cross-sectional study with 116 nursing students from the public university in the state of Amazonas, Brazil, from March to April 2014. Data were collected using a questionnaire with socioeconomic and medicine use variables. The data were subjected to bivariate analysis and logistic regression at a significance level of 5%. Results: The prevalence of self-medication was 76...
May 18, 2017: Revista Gaúcha de Enfermagem
https://www.readbyqxmd.com/read/28538613/acute-retinal-damage-after-using-a-toxic-perfluoro-octane-for-vitreo-retinal-surgery
#12
J Carlos Pastor, Rosa M Coco, Ivan Fernandez-Bueno, Maria L Alonso-Alonso, Jesús Medina, Aurelio Sanz-Arranz, Fernando Rull, Manuel J Gayoso, Antonio Dueñas, Maria T Garcia-Gutierrez, Lucia Gonzalez-Buendia, Santiago Delgado-Tirado, Emilio Abecia, Miguel Ruiz-Miguel, Miguel A Serrano, Jose M Ruiz-Moreno, Girish K Srivastava
PURPOSE: To describe a series of retinal acute toxicity cases with severe visual loss after intraocular use of a toxic perfluoro-octane (PFO). The clinical presentation is described, and the likely causes are analyzed. New biological methods for testing safety of intraocular medical devices are proposed. METHODS: Information regarding a series of eyes suffering acute severe events after intraocular use of a toxic PFO was analyzed. Four types of spectroscopy, nuclear magnetic resonance, and chromatography were used to identify the potential PFO contaminants...
June 2017: Retina
https://www.readbyqxmd.com/read/28538033/ultrasound-evaluation-as-a-complementary-test-in-hidradenitis-suppurativa-proposal-of-a-standarized-report
#13
Antonio Martorell, Ximena Wortsman, Fernando Alfageme, Gaston Roustan, Salvador Arias-Santiago, Orlando Catalano, Maria Scotto di Santolo, Kian Zarchi, Marcio Bouer, Diana Gaitini, Claudia Gonzalez, Robert Bard, F Javier García-Martínez, Anitha Mandava
BACKGROUND: Staging and monitoring of patients with hidradenitis suppurativa (HS) have been traditionally based on clinical findings. However, the physical examination may show important limitations because of its poor sensitivity for differentiating between different lesion subtypes, and its low sensitivity to define the disease's activity. OBJECTIVE: To develop a consensus ultrasound (US) report that could summarize the relevant anatomical characteristics and staging of patients considering the experience of radiologists and dermatologists working on imaging of HS...
May 22, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28537265/a-tetraoxane-based-antimalarial-drug-candidate-that-overcomes-pfk13-c580y-dependent-artemisinin-resistance
#14
Paul M O'Neill, Richard K Amewu, Susan A Charman, Sunil Sabbani, Nina F Gnädig, Judith Straimer, David A Fidock, Emma R Shore, Natalie L Roberts, Michael H-L Wong, W David Hong, Chandrakala Pidathala, Chris Riley, Ben Murphy, Ghaith Aljayyoussi, Francisco Javier Gamo, Laura Sanz, Janneth Rodrigues, Carolina Gonzalez Cortes, Esperanza Herreros, Iñigo Angulo-Barturén, María Belén Jiménez-Díaz, Santiago Ferrer Bazaga, María Santos Martínez-Martínez, Brice Campo, Raman Sharma, Eileen Ryan, David M Shackleford, Simon Campbell, Dennis A Smith, Grennady Wirjanata, Rintis Noviyanti, Ric N Price, Jutta Marfurt, Michael J Palmer, Ian M Copple, Amy E Mercer, Andrea Ruecker, Michael J Delves, Robert E Sinden, Peter Siegl, Jill Davies, Rosemary Rochford, Clemens H M Kocken, Anne-Marie Zeeman, Gemma L Nixon, Giancarlo A Biagini, Stephen A Ward
K13 gene mutations are a primary marker of artemisinin resistance in Plasmodium falciparum malaria that threatens the long-term clinical utility of artemisinin-based combination therapies, the cornerstone of modern day malaria treatment. Here we describe a multinational drug discovery programme that has delivered a synthetic tetraoxane-based molecule, E209, which meets key requirements of the Medicines for Malaria Venture drug candidate profiles. E209 has potent nanomolar inhibitory activity against multiple strains of P...
May 24, 2017: Nature Communications
https://www.readbyqxmd.com/read/28536304/abnormal-glycogen-chain-length-pattern-not-hyperphosphorylation-is-critical-in-lafora-disease
#15
Felix Nitschke, Mitchell A Sullivan, Peixiang Wang, Xiaochu Zhao, Erin E Chown, Ami M Perri, Lori Israelian, Lucia Juana-López, Paola Bovolenta, Santiago Rodríguez de Córdoba, Martin Steup, Berge A Minassian
Lafora disease (LD) is a fatal progressive epilepsy essentially caused by loss-of-function mutations in the glycogen phosphatase laforin or the ubiquitin E3 ligase malin. Glycogen in LD is hyperphosphorylated and poorly hydrosoluble. It precipitates and accumulates into neurotoxic Lafora bodies (LBs). The leading LD hypothesis that hyperphosphorylation causes the insolubility was recently challenged by the observation that phosphatase-inactive laforin rescues the laforin-deficient LD mouse model, apparently through correction of a general autophagy impairment...
May 23, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/28536302/a-cryo-em-based-model-of-phosphorylation-and-fkbp12-6-mediated-allosterism-of-the-cardiac-ryanodine-receptor
#16
Sonali Dhindwal, Joshua Lobo, Vanessa Cabra, Demetrio J Santiago, Ashok R Nayak, Kelly Dryden, Montserrat Samsó
Type 2 ryanodine receptors (RyR2s) are calcium channels that play a vital role in triggering cardiac muscle contraction by releasing calcium from the sarcoplasmic reticulum into the cytoplasm. Several cardiomyopathies are associated with the abnormal functioning of RyR2. We determined the three-dimensional structure of rabbit RyR2 in complex with the regulatory protein FKBP12.6 in the closed state at 11.8 Å resolution using cryo-electron microscopy and built an atomic model of RyR2. The heterogeneity in the data set revealed two RyR2 conformations that we proposed to be related to the extent of phosphorylation of the P2 domain...
May 23, 2017: Science Signaling
https://www.readbyqxmd.com/read/28534924/very-large-scale-characterization-of-graphene-mechanical-devices-using-a-colorimetry-technique
#17
Santiago Jose Cartamil-Bueno, Alba Centeno, Amaia Zurutuza, Peter Gerard Steeneken, Herre Sjoerd Jan van der Zant, Samer Houri
We use a scalable optical technique to characterize more than 21 000 circular nanomechanical devices made of suspended single- and double-layer graphene on cavities with different diameters (D) and depths (g). To maximize the contrast between suspended and broken membranes we used a model for selecting the optimal color filter. The method enables parallel and automatized image processing for yield statistics. We find the survival probability to be correlated with a structural mechanics scaling parameter given by D(4)/g(3)...
May 23, 2017: Nanoscale
https://www.readbyqxmd.com/read/28534222/identification-of-innate-lymphoid-cells-in-single-cell-rna-seq-data
#18
Madeleine Suffiotti, Santiago J Carmona, Camilla Jandus, David Gfeller
Innate lymphoid cells (ILCs) consist of natural killer (NK) cells and non-cytotoxic ILCs that are broadly classified into ILC1, ILC2, and ILC3 subtypes. These cells recently emerged as important early effectors of innate immunity for their roles in tissue homeostasis and inflammation. Over the last few years, ILCs have been extensively studied in mouse and human at the functional and molecular level, including gene expression profiling. However, sorting ILCs with flow cytometry for gene expression analysis is a delicate and time-consuming process...
May 22, 2017: Immunogenetics
https://www.readbyqxmd.com/read/28533943/etiology-and-treatment-of-amyotrophic-lateral-sclerosis
#19
Hernando Rafael, Juan Oscar David, Antonio Santiago Vilca
BACKGROUND: To date all researchers conclude that the etiology of Amyotrophic lateral sclerosis (ALS) is not known. On the contrary, since August 2009, we believe that disease is of ischemic origin in the anterior surface of the medulla oblongata. MATERIAL AND METHOD: We present our surgical experience into 45 patients with ALS (bulbar form in 36 cases and spinal form in 9). Preoperative MRI scans revealed microinfarcts in the medulla oblongata and/or cervical cord...
2017: American Journal of Neurodegenerative Disease
https://www.readbyqxmd.com/read/28533901/allergic-respiratory-disease-ard-setting-forth-the-basics-proposals-of-an-expert-consensus-report
#20
Ana M Navarro, Julio Delgado, Rosa M Muñoz-Cano, M Teresa Dordal, Antonio Valero, Santiago Quirce
BACKGROUND: The variability of symptoms observed in patients with respiratory allergy often hampers classification based on the criteria proposed in guidelines on rhinitis and asthma. OBJECTIVES: We assessed specific aspects of allergic respiratory disease (ARD) that are not explicitly addressed in the guidelines in order to issue specific recommendations and thus optimize clinical practice. METHODS: Using the Delphi technique, 40 Spanish allergists were surveyed to reach consensus on 71 items related to ARD...
2017: Clinical and Translational Allergy
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