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Christine E Mona, Élie Besserer-Offroy, Jérôme Cabana, Richard Leduc, Pierre Lavigne, Nikolaus Heveker, Éric Marsault, Emanuel Escher
A combination of the CXCR4 inverse agonist T140 with N-terminal CXCL12 oligopeptides has produced the first nanomolar synthetic CXCR4 agonists. In these agonists, the inverse agonistic portion provides affinity whereas the N-terminal CXCL12 sequence induces receptor activation. Several CXCR4 crystal structures exist with either CVX15, an inverse agonist closely related to T140 and IT1t, a small molecule; we therefore attempted to produce another CXCL12 oligopeptide combination with IT1t. For this purpose, a primary amino group was introduced by total synthesis into one of the methyl groups of IT1t, serving as an anchoring point for the oligopeptide graft...
October 18, 2016: Organic & Biomolecular Chemistry
Luigi Bellocchio, Andrea Ruiz-Calvo, Anna Chiarlone, Magali Cabanas, Eva Resel, Jean-René Cazalets, Cristina Blázquez, Yoon H Cho, Ismael Galve-Roperh, Manuel Guzmán
: The dorsal striatum is a major input structure of the basal ganglia and plays a key role in the control of vital processes such as motor behavior, cognition, and motivation. The functionality of striatal neurons is tightly controlled by various metabotropic receptors. Whereas the Gs/Gi-protein-dependent tuning of striatal neurons is fairly well known, the precise impact and underlying mechanism of Gq-protein-dependent signals remain poorly understood. Here, using different experimental approaches, especially designer receptor exclusively activated by designer drug (DREADD) chemogenetic technology, we found that sustained activation of Gq-protein signaling impairs the functionality of striatal neurons and we unveil the precise molecular mechanism underlying this process: a phospholipase C/Ca(2+)/proline-rich tyrosine kinase 2/cJun N-terminal kinase pathway...
October 12, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
Zuliana Paola Benítez-Hernández, María de Lourdes De la Torre-Díaz, Mónica Cervantes-Borunda, Rosa Patricia Hernández-Torres, María Dolores Cabañas, Noemí López-Ejeda, María Dolores Marrodán
OBJECTIVE: The Tarahumara ethnic group is composed of indigenous people from the Sierra Madre Occidental of Mexico. Conditions of isolation and poverty compel them to migrate to the city in search of better opportunities. This work aims to explore the influence of migration on the growth and nutritional status of Tarahumara schoolchildren. METHODS: One hundred Tarahumara students were analyzed (50 rural with a mean age of 9.78 ± 1.25 years; 50 urban aged 10...
September 26, 2016: American Journal of Human Biology: the Official Journal of the Human Biology Council
Ana M Sánchez-Riego, Alejandro Mata-Cabana, Carla V Galmozzi, Francisco J Florencio
NADPH-thioredoxin reductase C (NTRC) is a bimodular enzyme composed of an NADPH-thioredoxin reductase and a thiioredoxin domain extension in the same protein. In plants, NTRC has been described to be involved in the protection of the chloroplast against oxidative stress damage through reduction of the 2-Cys peroxiredoxin (2-Cys Prx) as well as through other functions related to redox enzyme regulation. In cyanobacteria, the Anabaena NTRC has been characterized in vitro, however, nothing was known about its in vivo function...
2016: Frontiers in Microbiology
Jonathan B Clayton, Pajau Vangay, Hu Huang, Tonya Ward, Benjamin M Hillmann, Gabriel A Al-Ghalith, Dominic A Travis, Ha Thang Long, Bui Van Tuan, Vo Van Minh, Francis Cabana, Tilo Nadler, Barbara Toddes, Tami Murphy, Kenneth E Glander, Timothy J Johnson, Dan Knights
The primate gastrointestinal tract is home to trillions of bacteria, whose composition is associated with numerous metabolic, autoimmune, and infectious human diseases. Although there is increasing evidence that modern and Westernized societies are associated with dramatic loss of natural human gut microbiome diversity, the causes and consequences of such loss are challenging to study. Here we use nonhuman primates (NHPs) as a model system for studying the effects of emigration and lifestyle disruption on the human gut microbiome...
September 13, 2016: Proceedings of the National Academy of Sciences of the United States of America
Ismael San Mauro Martín, Elena Garicano Vilar, Joana León Fernández, María José Ciudad Cabañas, Luis Collado Yurrita
Introducción: recientemente ha surgido el interés por el posible papel de la microbiota intestinal como agente potenciador del rápido aumento que se está observando en el aumento de la prevalencia de obesidad en todo el mundo.Objetivos: relacionar las modificaciones que puede ocasionar el consumo de antibióticos en la microflora intestinal con la obesidad.Métodos: se extrajeron, de las Encuestas Nacionales de Salud de España, entre los años 2001 y 2011, las cifras de ingesta de antibióticos y la prevalencia (%) de obesidad en el mismo rango de edad, género y año...
2016: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
Maria Josep Cabañas Poy, Carme Cañete Ramírez, Sabina X González di Lauro, Virginia Rodríguez Garrido, Gloria Roig Carbajosa, Aurora Fernández-Polo, Susana Clemente Bautista
The oral administration of drugs to the pediatric population involves the extemporaneous preparation of liquid formulations. These formulations have studies on their physicochemical stability, but they often lack microbiological studies. The objective of this study is to check the microbiological quality of five oral liquid formulations prepared with different excipients, which represent five major combinations, in two conditions: kept unopened until the day of the test, and in a multi-dose vial opened daily...
September 2016: Farmacia Hospitalaria
François Cabana, Catherine Pagé, Amy Svotelis, Samuel Langlois-Michaud, Michel Tousignant
BACKGROUND: Proximal humerus fractures can be treated surgically (eg: pinning, plate and screws) or conservatively by wearing a splint or a cast. Following both of these approaches, rehabilitation has proven effective to prevent functional limitations and to re-establish normal shoulder function. However, access to these rehabilitation services and compliance tends to be limited in elderly patients due to travelling difficulties caused by their precarious health status and, in some cases, social and marital status...
2016: BMC Sports Science, Medicine and Rehabilitation
Elena Ramírez, Nicolás Medrano-Casique, Hoi Y Tong, Teresa Bellón, Rosario Cabañas, Ana Fiandor, Jessica González-Ramos, Pedro Herranz, Elena Trigo, Mario Muñoz, Alberto M Borobia, Antonio J Carcas, Jesús Frías
AIM: We conducted a prospective evaluation of all eosinophilic drug reactions (EDRs) through the Prospective Pharmacovigilance Program from Laboratory Signals at Hospital to find out the incidence and distribution of these entities in our hospital, their causative drugs, and predictors. METHODS: All peripheral eosinophilia >700 × 10(6)  cells l(-1) detected at admission or during hospitalisation, were prospectively monitored over 42 months. The spectrum of the localised or systemic manifestation of EDR, the incidence, the distribution of causative drugs, and the predictors were analysed...
August 20, 2016: British Journal of Clinical Pharmacology
William J Sheehan, David T Mauger, Ian M Paul, James N Moy, Susan J Boehmer, Stanley J Szefler, Anne M Fitzpatrick, Daniel J Jackson, Leonard B Bacharier, Michael D Cabana, Ronina Covar, Fernando Holguin, Robert F Lemanske, Fernando D Martinez, Jacqueline A Pongracic, Avraham Beigelman, Sachin N Baxi, Mindy Benson, Kathryn Blake, James F Chmiel, Cori L Daines, Michael O Daines, Jonathan M Gaffin, Deborah A Gentile, W Adam Gower, Elliot Israel, Harsha V Kumar, Jason E Lang, Stephen C Lazarus, John J Lima, Ngoc Ly, Jyothi Marbin, Wayne J Morgan, Ross E Myers, J Tod Olin, Stephen P Peters, Hengameh H Raissy, Rachel G Robison, Kristie Ross, Christine A Sorkness, Shannon M Thyne, Michael E Wechsler, Wanda Phipatanakul
BACKGROUND: Studies have suggested an association between frequent acetaminophen use and asthma-related complications among children, leading some physicians to recommend that acetaminophen be avoided in children with asthma; however, appropriately designed trials evaluating this association in children are lacking. METHODS: In a multicenter, prospective, randomized, double-blind, parallel-group trial, we enrolled 300 children (age range, 12 to 59 months) with mild persistent asthma and assigned them to receive either acetaminophen or ibuprofen when needed for the alleviation of fever or pain over the course of 48 weeks...
August 18, 2016: New England Journal of Medicine
Hélène Moffet, Michel Tousignant, Sylvie Nadeau, Chantal Mérette, Patrick Boissy, Hélène Corriveau, François Marquis, François Cabana, Étienne L Belzile, Pierre Ranger, Ronald Dimentberg
BACKGROUND AND INTRODUCTION: Telerehabilitation after total knee arthroplasty (TKA) is supported by strong evidence on the effectiveness of such intervention and from a cost-benefit point of view. Satisfaction of patients toward in-home telerehabilitation after TKA has not yet been examined thoroughly in large-scale clinical trials. This study aims to compare satisfaction level of patients following in-home telerehabilitation (TELE) after TKA to one of the patients following a usual face-to-face home visit (STD) rehabilitation...
August 16, 2016: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
Judit Cabana-Domínguez, Carlos Roncero, Lara Grau-López, Laia Rodríguez-Cintas, Carmen Barral, Alfonso C Abad, Galina Erikson, Nathan E Wineinger, Bàrbara Torrico, Concepció Arenas, Miquel Casas, Marta Ribasés, Bru Cormand, Noèlia Fernàndez-Castillo
Cocaine dependence is a complex psychiatric disorder involving both genetic and environmental factors. Several neurotransmitter systems mediate cocaine's effects, dependence and relapse, being the components of the neurotransmitter release machinery good candidates for the disorder. Previously, we identified a risk haplotype for cocaine dependence in the NSF gene, encoding the protein N-Ethylmaleimide-Sensitive Factor essential for synaptic vesicle turnover. Here we examined the possible contribution to cocaine dependence of a large copy number variant (CNV) that encompasses part of the NSF gene...
2016: Scientific Reports
I Marin-Cabanas, J C Pascual
No abstract text is available yet for this article.
July 2016: British Journal of Dermatology
Christine E Mona, Élie Besserer-Offroy, Jérôme Cabana, Marilou Lefrançois, Philip E Boulais, Marie-Reine Lefebvre, Richard Leduc, Pierre Lavigne, Nikolaus Heveker, Éric Marsault, Emanuel Escher
The CXCR4 receptor binds with meaningful affinities only CXCL12 and synthetic antagonists/inverse agonists. We recently described high affinity synthetic agonists for this chemokine receptor, obtained by grafting the CXCL12 N-terminus onto the inverse agonist T140. While those chimeric molecules behave as agonists for CXCR4, their binding and activation mode are unknown. The present SAR of those CXCL12-oligopeptide grafts reveals the key determinants involved in CXCR4 activation. Position 3 (Val) controls affinity, whereas position 7 (Tyr) acts as an efficacy switch...
August 25, 2016: Journal of Medicinal Chemistry
John Bedolla, Jaron Santelli, John Sabra, Jose G Cabanas, Chris Ziebell, Steve Olvey
BACKGROUND: Crashes are a small but regular feature of elite motorcycle racing. These crashes provide a novel opportunity to benchmark and analyze motorcycle crash mechanics, crash types, and associated injuries at high speeds in a cohort of riders who are well protected and in a controlled environment. PURPOSE: The purpose was to benchmark the prevalence of injuries, categorize crash subtypes, and determine associated injury patterns. METHODS: This was an institutional review board-approved, prospective observational cohort study of MotoGP riders for 1 racing season in 3 venues...
September 2016: American Journal of Emergency Medicine
T Bru, R Vila, M Cabana, H J Geerligs
Infectious bronchitis virus (IBV) is a coronavirus which affects chickens of all ages. IBV mainly causes respiratory disease but can also result in reduced weight, reduced egg production, increased frequency of abnormal eggs and increased rates of mortality. Vaccination is the most important way to control the disease. Nevertheless, novel strains of IB continue to emerge in the field. In order to promptly respond, combinations of existing IB vaccines are frequently tested whether can provide cross-protection...
July 11, 2016: Avian Pathology: Journal of the W.V.P.A
Carolina Carballo, Magdalena Cabana, Francisca Ledezma, Carolina Pascual, Claudia Cazes, Alicia Mistchenko, Eduardo López
Saint Louis encephalitis is transmitted by Culex mosquitoes. In Argentina sporadic cases are registered. Symptomatic illness is unusual in children. We present a case of meningoencephalitis caused by an uncommon viral infection. The clinical signs and symptoms are unusual for pediatric patients and the bilateral thalamic compromise showed on magnetic resonance has not been described previously. An 8-year-old girl consulted due to fever, behavior disorders and ataxia. Clonus and neck stiffness were detected at physical exam...
August 1, 2016: Archivos Argentinos de Pediatría
Amanda Fernández-Fontelo, Alejandra Cabaña, Pedro Puig, David Moriña
In this work, we deal with correlated under-reported data through INAR(1)-hidden Markov chain models. These models are very flexible and can be identified through its autocorrelation function, which has a very simple form. A naïve method of parameter estimation is proposed, jointly with the maximum likelihood method based on a revised version of the forward algorithm. The most-probable unobserved time series is reconstructed by means of the Viterbi algorithm. Several examples of application in the field of public health are discussed illustrating the utility of the models...
July 11, 2016: Statistics in Medicine
V M Asensio-Sánchez, L Díaz-Cabanas
INTRODUCTION: Presumed solitary circumscribed retinal astrocytic proliferation (PSCRAP) is a small defined solitary lesion. CASE REPORT: A 58-year-old man had an opaque yellow retinal lesion inferonasal to the optic disc. Fluorescein angiography showed mild early hyperfluorescence and late fluorescence. Ultrasound showed no calcification. Autofluorescence disclosed moderate hyperautofluorescence. Optical coherence tomography showed the mass with a snowball configuration and a smooth surface...
July 1, 2016: Archivos de la Sociedad Española de Oftalmología
Ana Alarcon, Miriam Martinez-Biarge, Fernando Cabañas, Jose Quero, Alfredo García-Alix
BACKGROUND: Congenital cytomegalovirus (cCMV) can cause brain inflammation/destruction and teratogenic effects. The only validated neuroimaging prognostic categorization for symptomatic cCMV available is based on destructive lesions seen on computed tomography (CT). OBJECTIVE: The aim of this study was to establish the predictive ability of a comprehensive neonatal neuroimaging scale in symptomatic cCMV. METHODS: Twenty-six infants were studied by neonatal cranial ultrasound scans (US; n = 25), CT (n = 11) and magnetic resonance imaging (MRI; n = 9)...
June 24, 2016: Neonatology
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