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https://www.readbyqxmd.com/read/28345601/towards-reproducible-mrm-based-biomarker-discovery-using-dried-blood-spots
#1
Sureyya Ozcan, Jason D Cooper, Santiago G Lago, Diarmuid Kenny, Nitin Rustogi, Pawel Stocki, Sabine Bahn
There is an increasing interest in the use of dried blood spot (DBS) sampling and multiple reaction monitoring in proteomics. Although several groups have explored the utility of DBS by focusing on protein detection, the reproducibility of the approach and whether it can be used for biomarker discovery in high throughput studies is yet to be determined. We assessed the reproducibility of multiplexed targeted protein measurements in DBS compared to serum. Eighty-two medium to high abundance proteins were monitored in a number of technical and biological replicates...
March 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28345190/new-medicinal-products-for-chronic-heart-failure-advances-in-clinical-trial-design-and-efficacy-assessment
#2
REVIEW
Martin R Cowie, Gerasimos S Filippatos, Maria de Los Angeles Alonso Garcia, Stefan D Anker, Anna Baczynska, Daniel M Bloomfield, Maria Borentain, Karsten Bruins Slot, Maureen Cronin, Pieter A Doevendans, Amany El-Gazayerly, Claudio Gimpelewicz, Narimon Honarpour, Salim Janmohamed, Heidi Janssen, Albert M Kim, Dominik Lautsch, Ian Laws, Martin Lefkowitz, Jose Lopez-Sendon, Alexander R Lyon, Fady I Malik, John J V McMurray, Marco Metra, Santiago Figueroa Perez, Marc A Pfeffer, Stuart J Pocock, Piotr Ponikowski, Krishna Prasad, Isabelle Richard-Lordereau, Lothar Roessig, Giuseppe M C Rosano, Warren Sherman, Wendy Gattis Stough, Karl Swedberg, Benoit Tyl, Faiez Zannad, Caroline Boulton, Pieter De Graeff
Despite the availability of a number of different classes of therapeutic agents with proven efficacy in heart failure, the clinical course of heart failure patients is characterized by a reduction in life expectancy, a progressive decline in health-related quality of life and functional status, as well as a high risk of hospitalization. New approaches are needed to address the unmet medical needs of this patient population. The European Medicines Agency (EMA) is undertaking a revision of its Guideline on Clinical Investigation of Medicinal Products for the Treatment of Chronic Heart Failure...
March 27, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/28343629/biallelic-variants-in-otud6b-cause-an-intellectual-disability-syndrome-associated-with-seizures-and-dysmorphic-features
#3
Teresa Santiago-Sim, Lindsay C Burrage, Frédéric Ebstein, Mari J Tokita, Marcus Miller, Weimin Bi, Alicia A Braxton, Jill A Rosenfeld, Maher Shahrour, Andrea Lehmann, Benjamin Cogné, Sébastien Küry, Thomas Besnard, Bertrand Isidor, Stéphane Bézieau, Isabelle Hazart, Honey Nagakura, LaDonna L Immken, Rebecca O Littlejohn, Elizabeth Roeder, Bulent Kara, Katia Hardies, Sarah Weckhuysen, Patrick May, Johannes R Lemke, Orly Elpeleg, Bassam Abu-Libdeh, Kiely N James, Jennifer L Silhavy, Mahmoud Y Issa, Maha S Zaki, Joseph G Gleeson, John R Seavitt, Mary E Dickinson, M Cecilia Ljungberg, Sara Wells, Sara J Johnson, Lydia Teboul, Christine M Eng, Yaping Yang, Peter-Michael Kloetzel, Jason D Heaney, Magdalena A Walkiewicz
Ubiquitination is a posttranslational modification that regulates many cellular processes including protein degradation, intracellular trafficking, cell signaling, and protein-protein interactions. Deubiquitinating enzymes (DUBs), which reverse the process of ubiquitination, are important regulators of the ubiquitin system. OTUD6B encodes a member of the ovarian tumor domain (OTU)-containing subfamily of deubiquitinating enzymes. Herein, we report biallelic pathogenic variants in OTUD6B in 12 individuals from 6 independent families with an intellectual disability syndrome associated with seizures and dysmorphic features...
March 21, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/28343167/the-unappreciated-roles-of-the-cholecystokinin-receptor-cck-1-in-brain-functioning
#4
Santiago Ballaz
The CCK(1) receptor is a G-protein-coupled receptor activated by the sulfated forms of cholecystokinin (CCK), a gastrin-like peptide released in the gastrointestinal tract and mammal brain. A substantial body of research supports the hypothesis that CCK(1)r stimulates gallbladder contraction and pancreatic secretion in the gut, as well as satiety in brain. However, this receptor may also fulfill relevant roles in behavior, thanks to its widespread distribution in the brain. The strategic location of CCK(1)r in mesolimbic structures and specific hypothalamic and brainstem nuclei lead to complex interactions with neurotransmitters like dopamine, serotonin, and glutamate, as well as hypothalamic hormones and neuropeptides...
March 25, 2017: Reviews in the Neurosciences
https://www.readbyqxmd.com/read/28343093/influence-of-genetic-variants-of-cyp2d6-cyp2c9-cyp2c19-and-cyp3a4-on-antiepileptic-drug-metabolism-in-pediatric-patients-with-refractory-epilepsy
#5
Miguel A López-García, Iris A Feria-Romero, Héctor Serrano, Darío Rayo-Mares, Pietro Fagiolino, Marta Vázquez, Consuelo Escamilla-Núñez, Israel Grijalva, David Escalante-Santiago, Sandra Orozco-Suarez
BACKGROUND: Identified the polymorphisms of CYP2D6, CYP2C9, CYP2C19 and CYP3A4, within a rigorously selected population of pediatric patients with drug-resistant epilepsy. METHOD: The genomic DNA of 23 drug-resistant epilepsy patients and 7 patients with good responses were analyzed. Ten exons in these four genes were genotyped, and the drug concentrations in saliva and plasma were determined. RESULTS: The relevant SNPs with pharmacogenomics relations were CYP2D6*2 (rs16947) decreased your activity and CYP2D6*4 (rs1065852), CYP2C19*2 (rs4244285) and CYP3A4*1B (rs2740574) by association with poor metabolizer...
January 19, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28342814/tear-cytokine-profile-of-glaucoma-patients-treated-with-preservative-free-or-preserved-latanoprost
#6
Jose M Martinez-de-la-Casa, Francisco Perez-Bartolome, Elena Urcelay, Jose L Santiago, Javier Moreno-Montañes, Pedro Arriola-Villalobos, Jose M Benitez-Del-Castillo, Julian Garcia-Feijoo
PURPOSE: To determine variations in cytokine levels of glaucoma patients treated either with preservative-free latanoprost or preserved latanoprost, relative to healthy individuals. METHODS: Tear samples were collected from 39 healthy subjects, 20 glaucoma patients treated with preserved latanoprost, and 20 patients treated with preservative-free latanoprost. A set of 27 inflammatory cytokines was analyzed in each group, including interleukin (IL)-1β, IL-1ra, IL-2, IL-4, IL-5, IL-6, IL-7, IL-8, IL9, IL-10, IL-12 (p70), IL-13, IL-15, IL-17, eotaxin, fibroblast growth factor (FGF) basic, granulocyte colony stimulating factor (G-CSF), granulocyte monocyte colony stimulating factor (GM-CSF), interferon (IFN)-γ, interferon gamma-induced protein (IP)-10, monocyte chemo attractant protein (MCP)-1MCAF, macrophage inflammatory protein (MIP)-1α, MIP-1β, platelet-derived growth factor (PDGF)-BB, regulated on activation, normal T cell expressed and secreted (RANTES), tumor necrosis factor (TNF)-α and vascular endothelial growth factor (VEGF)...
March 22, 2017: Ocular Surface
https://www.readbyqxmd.com/read/28342429/non-parasitic-life-cycle-of-the-cattle-tick-rhipicephalus-boophilus-microplus-in-panicum-maximum-pastures-in-northern-argentina
#7
Mariano Mastropaolo, Atilio J Mangold, Alberto A Guglielmone, Santiago Nava
The aim of this work was to study the non-parasitic phase of the Rhipicephalus microplus life cycle in Panicum maximum grasses from northern Argentina, in order to provide ecological information for designing methods of tick control. Four localities were chosen as replicates. The biological parameters measured were proportion of females ovipositing, the pre-oviposition period, the proportion of egg clusters hatching, the incubation period of eggs, larval longevity, and the total non-parasitic period (time from the exposure of the female to the date of death of the last larva) (TNPP))...
March 21, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28342412/bacterial-community-responses-during-a-possible-co2-leaking-from-sub-seabed-storage-in-marine-polluted-sediments
#8
Ana R Borrero-Santiago, T Ángel DelValls, M Inmaculada Riba
Carbon capture and storage (CCS) is a viable option to reduce high concentrations of CO2 and mitigate their negative effects. This option has associated risks such as possible CO2 leakage from the storage sites. So far, negative effects deriving from a CO2 release have been reported for benthic macrofauna in both polluted and nonpolluted sediments. However, bacterial communities has no considered. In this work, risk assessment was carried out in order to evaluate the possible effects in a contaminated area considering bacterial responses (total number of cells, respiring activity, changes in the bacterial community composition and diversity)...
March 22, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28341713/substrate-recognition-by-the-cdh1-destruction-box-receptor-is-a-general-requirement-for-apc-c-cdh1-mediated-proteolysis
#9
Liang Qin, Dimitrius Santiago P S F Guimarães, Michael Melesse, Mark C Hall
No abstract text is available yet for this article.
March 24, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28341686/incidental-findings-on-brain-mri-of-cognitively-normal-first-degree-descendants-of-patients-with-alzheimer-s-disease-a-cross-sectional-analysis-from-the-alfa-alzheimer-and-families-project
#10
Anna Brugulat-Serrat, Santiago Rojas, Nuria Bargalló, Gerardo Conesa, Carolina Minguillón, Karine Fauria, Nina Gramunt, José Luis Molinuevo, Juan Domingo Gispert
OBJECTIVES: To describe the prevalence of brain MRI incidental findings (IF) in a cohort of cognitively normal first-degree descendants of patients with Alzheimer's disease (AD). DESIGN: Cross-sectional observational study. SETTING: All scans were obtained with a 3.0 T scanner. Scans were evaluated by a single neuroradiologist and IF recorded and categorised. The presence of white matter hyperintensities (WMH) was determined with the Fazekas scale and reported as relevant if ≥2...
March 24, 2017: BMJ Open
https://www.readbyqxmd.com/read/28341640/impaired-b-cell-function-during-viral-infections-due-to-pten-mediated-inhibition-of-the-pi3k-pathway
#11
Andrew Getahun, Scott M Wemlinger, Pratyaydipta Rudra, Mario L Santiago, Linda F van Dyk, John C Cambier
Transient suppression of B cell function often accompanies acute viral infection. However, the molecular signaling circuitry that enforces this hyporesponsiveness is undefined. In this study, experiments identify up-regulation of the inositol phosphatase PTEN (phosphatase and tensin homolog) as primarily responsible for defects in B lymphocyte migration and antibody responses that accompany acute viral infection. B cells from mice acutely infected with gammaherpesvirus 68 are defective in BCR- and CXCR4-mediated activation of the PI3K pathway, and this, we show, is associated with increased PTEN expression...
March 24, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28341109/phase-1-2-study-of-the-cd56-targeting-antibody-drug-conjugate-lorvotuzumab-mertansine-imgn901-in-combination-with-carboplatin-etoposide-in-small-cell-lung-cancer-patients-with-extensive-stage-disease
#12
Mark A Socinski, Frederic J Kaye, David R Spigel, Fred J Kudrik, Santiago Ponce, Peter M Ellis, Margarita Majem, Paul Lorigan, Leena Gandhi, Martin E Gutierrez, Dale Nepert, Jesus Corral, Luis Paz Ares
INTRODUCTION: This trial assessed the safety and efficacy of LM in combination with carboplatin/etoposide therapy compared to carboplatin/etoposide treatment alone in patients with previously untreated extensive-disease small-cell lung cancer (ED-SCLC). PATIENTS AND METHODS: A run-in phase 1 stage was used to determine the recommended phase 2 dose and characterize the dose-limiting toxicities of LM in combination with carboplatin/etoposide followed by LM alone in patients with CD56-positive solid tumors...
January 2017: Clinical Lung Cancer
https://www.readbyqxmd.com/read/28339660/eculizumab-in-secondary-atypical-haemolytic-uraemic-syndrome
#13
Teresa Cavero, Cristina Rabasco, Antía López, Elena Román, Ana Ávila, Ángel Sevillano, Ana Huerta, Jorge Rojas-Rivera, Carolina Fuentes, Miquel Blasco, Ana Jarque, Alba García, Santiago Mendizabal, Eva Gavela, Manuel Macía, Luis F Quintana, Ana María Romera, Josefa Borrego, Emi Arjona, Mario Espinosa, José Portolés, Carolina Gracia-Iguacel, Emilio González-Parra, Pedro Aljama, Enrique Morales, Mercedes Cao, Santiago Rodríguez de Córdoba, Manuel Praga
Background.: Complement dysregulation occurs in thrombotic microangiopathies (TMAs) other than primary atypical haemolytic uraemic syndrome (aHUS). A few of these patients have been reported previously to be successfully treated with eculizumab. Methods.: We identified 29 patients with so-called secondary aHUS who had received eculizumab at 11 Spanish nephrology centres. Primary outcome was TMA resolution, defined by a normalization of platelet count (>150 × 10 9 /L) and haemoglobin, disappearance of all the markers of microangiopathic haemolytic anaemia (MAHA), and improvement of renal function, with a ≥25% reduction of serum creatinine from the onset of eculizumab administration...
February 20, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28339467/a-non-canonical-rna-degradation-pathway-suppresses-rnai-dependent-epimutations-in-the-human-fungal-pathogen-mucor-circinelloides
#14
Silvia Calo, Francisco E Nicolás, Soo Chan Lee, Ana Vila, Maria Cervantes, Santiago Torres-Martinez, Rosa M Ruiz-Vazquez, Maria E Cardenas, Joseph Heitman
Mucorales are a group of basal fungi that includes the casual agents of the human emerging disease mucormycosis. Recent studies revealed that these pathogens activate an RNAi-based pathway to rapidly generate drug-resistant epimutant strains when exposed to stressful compounds such as the antifungal drug FK506. To elucidate the molecular mechanism of this epimutation pathway, we performed a genetic analysis in Mucor circinelloides that revealed an inhibitory role for the non-canonical RdRP-dependent Dicer-independent silencing pathway, which is an RNAi-based mechanism involved in mRNA degradation that was recently identified...
March 24, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28338547/satisfaction-with-methadone-and-opioid-receptor-genes-polymorphisms-in-treatment-refractory-heroin-dependent-patients
#15
José Pérez de Los Cobos, Saul Alcaraz, Núria Siñol, Maria Jesús Arranz, Joan Trujols, Francesca Batlle, Francesc Calafell, Santiago Durán-Sindreu, Juliana Salazar
No abstract text is available yet for this article.
March 23, 2017: Journal of Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28338392/the-effects-of-low-intensity-therapeutic-ultrasound-litus-on-measurable-outcomes-a-critically-appraised-topic
#16
Sarah Daniels, Gabriela Santiago, Jennifer Cuchna, Bonnie Van Lunen
Therapeutic Ultrasound (US) is a popular modality among healthcare professionals and is used to treat a variety of musculoskeletal conditions.(1) Throughout the past 70 years of clinical use,(2) ultrasound has been shown to be an effective way to decrease pain,(2,3) increase tissue temperature,(4) and decrease tissue stiffness of trigger points,(5) amidst other benefits. Treatment parameters with US are typically high-intensity and occur over a short period of time (minutes). The US machine is large and stationary, forcing patients to be non-mobile for the duration of their treatment...
March 24, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28337781/rationale-and-design-of-a-multicenter-international-and-collaborative-coronary-artery-aneurysm-registry-caar
#17
Iván J Núñez-Gil, Luis Nombela-Franco, Rodrigo Bagur, Mario Bollati, Enrico Cerrato, Emilio Alfonso, Christoph Liebetrau, José María De la Torre Hernandez, Benjamín Camacho, Rafael Mila, Ignacio J Amat-Santos, Fernando Alfonso, Ramón Rodríguez-Olivares, Santiago J Camacho Freire, Íñigo Lozano, Víctor Alfonso Jiménez Díaz, Davide Piraino, Roberto Adriano Latini, Gisela Feltes, Jose Antonio Linares, Massimo Mancone, Alfonso Ielasi, Alejandro Sánchez-Grande Flecha, Agustín Fernández Cisnal, Fabrizio Ugo, Jesús M Jiménez Mazuecos, Pierluigi Omedè, Marco Pavani, Pedro A Villablanca, Boshra F Louka, Antonio Fernández-Ortiz
Coronary artery aneurysm is defined as a coronary dilation that exceeds the diameter of adjacent segments or the diameter of the patient's largest normal coronary vessel by 1.5×. It is an uncommon disease that has been diagnosed with increasing frequency since the widespread appearance of coronary angiography. The published incidence varies from 1.5% to 5%, suggesting male dominance and a predilection for the right coronary artery. Although several causes have been described, atherosclerosis accounts for ≥50% of coronary aneurysms in adults...
March 24, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28336229/arthroscopic-in-situ-repair-of-partial-bursal-rotator-cuff-tears-without-acromioplasty
#18
Maximiliano Ranalletta, Luciano A Rossi, Nicolas A Atala, Bernardo A B Altieri, Gastón D Maignon, Santiago L Bongiovanni
PURPOSE: To evaluate functional outcomes and complications in a consecutive group of patients with partial bursal rotator cuff tears (PBRCTs) treated with insitu repair without acromioplasty. METHODS: Seventy-four patients who had undergone an arthroscopic single row in situ repair for bursal-sided rotator cuff tears were evaluated. Clinical assessment consisted of glenohumeral range of motion measurement, the American Shoulder and Elbow Surgeons score, and the University of California at Los Angeles score...
March 20, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28335579/application-of-a-mems-based-trng-in-a-chaotic-stream-cipher
#19
Miguel Garcia-Bosque, Adrián Pérez, Carlos Sánchez-Azqueta, Santiago Celma
In this work, we used a sensor-based True Random Number Generator in order to generate keys for a stream cipher based on a recently published hybrid algorithm mixing Skew Tent Map and a Linear Feedback Shift Register. The stream cipher was implemented and tested in a Field Programmable Gate Array (FPGA) and was able to generate 8-bit width data streams at a clock frequency of 134 MHz, which is fast enough for Gigabit Ethernet applications. An exhaustive cryptanalysis was completed, allowing us to conclude that the system is secure...
March 21, 2017: Sensors
https://www.readbyqxmd.com/read/28335547/genomic-loads-and-genotypes-of-respiratory-syncytial-virus-viral-factors-during-lower-respiratory-tract-infection-in-chilean-hospitalized-infants
#20
Yazmín Espinosa, Camila San Martín, Alejandro A Torres, Mauricio J Farfán, Juan P Torres, Vasanthi Avadhanula, Pedro A Piedra, Lorena I Tapia
The clinical impact of viral factors (types and viral loads) during respiratory syncytial virus (RSV) infection is still controversial, especially regarding newly described genotypes. In this study, infants with RSV bronchiolitis were recruited to describe the association of these viral factors with severity of infection. RSV antigenic types, genotypes, and viral loads were determined from hospitalized patients at Hospital Roberto del Río, Santiago, Chile. Cases were characterized by demographic and clinical information, including days of lower respiratory symptoms and severity...
March 21, 2017: International Journal of Molecular Sciences
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