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Pauline Renaudin, Alexandre Janin, Gilles Millat, Philippe Chevalier
BACKGROUND: Hypertrophic cardiomyopathy (HCM), a common and clinically heterogeneous disease characterized by unexplained ventricular myocardial hypertrophy, is mostly caused by mutations in sarcomeric genes. Identifying the genetic cause is important for management, therapy, and genetic counseling. METHODS: A molecular diagnosis was performed on a 51-year-old woman diagnosed with HCM using a next-generation sequencing workflow based on a panel designed for sequencing the most prevalent cardiomyopathy-causing genes...
March 16, 2018: Molecular Diagnosis & Therapy
J Hiquet, E Christin, F Tovagliaro, J Fougas, O Dubourg, C Chevalier, F Abel, M Ebouat, M-E Ploquin, M Malo, S Gromb-Monnoyeur
BACKGROUND: The Forensic medicine reform in 2011 enabled the development of forensic units specialized in multidisciplinary care of victims of criminal offences. Thanks to an annual budgetary allocation, the Ministry of Justice handles the financing of judicial acts, while the health care facilities assume the medical, psychological and social aspects. The objective of this study was to determine the direct costs of medical care provided to rape victims (such as defined in the article 222-23 of the Penal Code) in order to see how its funding could be reconsidered to prevent any additional cost that could be caused by non-sufficient medical, psychological and social care...
March 9, 2018: Revue D'épidémiologie et de Santé Publique
Vincent Boulanger, Jean-Luc Dupouey, Frédéric Archaux, Vincent Badeau, Christophe Baltzinger, Richard Chevalier, Emmanuel Corcket, Yann Dumas, Françoise Forgeard, Anders Mårell, Pierre Montpied, Yoan Paillet, Sonia Saïd, Erwin Ulrich
In Boulanger et al. (2018), we assessed the role of ungulates' presence on short-term understory plant dynamics, using a nationwide network composed of paired exclosure-control plots. We demonstrated that ungulates are key drivers of understory vegetation in managed forests since they alter the richness and abundance of the shrub layer, increase the richness of the herb layer and favour open habitat plant species. Our results show that local scale mechanisms, here involving indirect facilitation, lead to global dynamics in forest-ungulate systems...
March 11, 2018: Global Change Biology
Faysal A Yafi, Robert Andrianne, Laith Alzweri, Jeffrey Brady, Michael Butcher, Daniel Chevalier, Kenneth J DeLay, Antoine Faix, Georgios Hatzichristodoulou, Wayne J G Hellstrom, Lawrence Jenkins, Tobias S Kohler, Daniar Osmanov, Sun Hung Park, M David Schwabb, Robert Valenzuela, Koenraad van Renterghem, Steven K Wilson
BACKGROUND: After radical prostatectomy (RP), erectile dysfunction, often necessitating the need for inflatable penile prosthesis (IPP) insertion, and urinary incontinence and climacturia can ensue. AIM: To assess the efficacy and safety of the mini-jupette, a mesh used to approximate the medial aspects of the 2 corporotomies at the time of IPP insertion, for the management of climacturia and urine leakage in patients with minimal incontinence. METHODS: We conducted a pilot multicenter study of patients with post-RP erectile dysfunction and climacturia and/or mild urinary incontinence (≤2 pads/day [ppd]) undergoing IPP insertion with concomitant placement of a mini-jupette graft...
March 6, 2018: Journal of Sexual Medicine
Sarah Toner, Megan Cassidy, Agnes Chevalier, Aida Farreny, Monica Leverton, Mariana Pinto da Costa, Stefan Priebe
BACKGROUND: Befriending has become a widely used method for tackling social isolation in individuals with severe mental illness (SMI), and evidence exists to support its effectiveness. However, patient preferences for befriending remain unclear. We aimed to determine whether patients with SMI want a volunteer befriender and, if so, the volunteer characteristics and character of the relationship they would prefer. METHODS: A survey of outpatients was conducted across London-based community mental health teams, for individuals diagnosed with affective or psychotic disorders...
March 9, 2018: BMC Psychiatry
Graciela M Dias, Adeline Bidault, Patrick Le Chevalier, Gwenaëlle Choquet, Clio Der Sarkissian, Ludovic Orlando, Claudine Medigue, Valerie Barbe, Sophie Mangenot, Cristiane C Thompson, Fabiano L Thompson, Annick Jacq, Vianney Pichereau, Christine Paillard
The Brown Ring Disease (BRD) caused high mortality rates since 1986 in the Manila clam Venerupis philippinarum introduced and cultured in Western Europe from the 1970s. The causative agent of BRD is a Gram-Negative bacterium, Vibrio tapetis , which is also pathogenic to fish. Here we report the first assembly of the complete genome of V. tapetis CECT4600T , together with the genome sequences of 16 additional strains isolated across a broad host and geographic range. Our extensive genome dataset allowed us to describe the pathogen pan- and core genomes and to identify putative virulence factors...
2018: Frontiers in Microbiology
Daniel K W Chu, Kenrie P Y Hui, Ranawaka A P M Perera, Eve Miguel, Daniela Niemeyer, Jincun Zhao, Rudragouda Channappanavar, Gytis Dudas, Jamiu O Oladipo, Amadou Traoré, Ouafaa Fassi-Fihri, Abraham Ali, Getnet F Demissié, Doreen Muth, Michael C W Chan, John M Nicholls, David K Meyerholz, Sulyman A Kuranga, Gezahegne Mamo, Ziqi Zhou, Ray T Y So, Maged G Hemida, Richard J Webby, Francois Roger, Andrew Rambaut, Leo L M Poon, Stanley Perlman, Christian Drosten, Veronique Chevalier, Malik Peiris
Middle East respiratory syndrome coronavirus (MERS-CoV) causes a zoonotic respiratory disease of global public health concern, and dromedary camels are the only proven source of zoonotic infection. Although MERS-CoV infection is ubiquitous in dromedaries across Africa as well as in the Arabian Peninsula, zoonotic disease appears confined to the Arabian Peninsula. MERS-CoVs from Africa have hitherto been poorly studied. We genetically and phenotypically characterized MERS-CoV from dromedaries sampled in Morocco, Burkina Faso, Nigeria, and Ethiopia...
March 5, 2018: Proceedings of the National Academy of Sciences of the United States of America
Iwona Pranke, Laure Bidou, Natacha Martin, Sandra Blanchet, Aurélie Hatton, Sabrina Karri, David Cornu, Bruno Costes, Benoit Chevalier, Danielle Tondelier, Emmanuelle Girodon, Matthieu Coupet, Aleksander Edelman, Pascale Fanen, Olivier Namy, Isabelle Sermet-Gaudelus, Alexandre Hinzpeter
Premature termination codons (PTCs) are generally associated with severe forms of genetic diseases. Readthrough of in-frame PTCs using small molecules is a promising therapeutic approach. Nonetheless, the outcome of preclinical studies has been low and variable. Treatment efficacy depends on: 1) the level of drug-induced readthrough, 2) the amount of target transcripts, and 3) the activity of the recoded protein. The aim of the present study was to identify, in the cystic fibrosis transmembrane conductance regulator (CFTR) model, recoded channels from readthrough therapy that may be enhanced using CFTR modulators...
January 2018: ERJ Open Research
Raeeka Khamari, Anne Trinh, Pierre Elliott Gabert, Paola Corazao-Rozas, Samuel Riveros-Cruz, Stephane Balayssac, Myriam Malet-Martino, Salim Dekiouk, Marie Joncquel Chevalier Curt, Patrice Maboudou, Guillaume Garçon, Laura Ravasi, Pierre Guerreschi, Laurent Mortier, Bruno Quesnel, Philippe Marchetti, Jerome Kluza
Targeted therapies as BRAF and MEK inhibitor combination have been approved as first-line treatment for BRAF-mutant melanoma. However, disease progression occurs in most of the patients within few months of therapy. Metabolic adaptations have been described in the context of acquired resistance to BRAF inhibitors (BRAFi). BRAFi-resistant melanomas are characterized by an increase of mitochondrial oxidative phosphorylation and are more prone to cell death induced by mitochondrial-targeting drugs. BRAFi-resistant melanomas also exhibit an enhancement of oxidative stress due to mitochondrial oxygen consumption increase...
February 27, 2018: Cell Death & Disease
Paul Lesueur, François Chevalier, Elias A El-Habr, Marie-Pierre Junier, Hervé Chneiweiss, Laurent Castera, Etienne Müller, Dinu Stefan, Yannick Saintigny
Despite continuous improvements in treatment of glioblastoma, tumor recurrence and therapy resistance still occur in a high proportion of patients. One underlying reason for this radioresistance might be the presence of glioblastoma cancer stem cells (GSCs), which feature high DNA repair capability. PARP protein plays an important cellular role by detecting the presence of damaged DNA and then activating signaling pathways that promote appropriate cellular responses. Thus, PARP inhibitors (PARPi) have recently emerged as potential radiosensitizing agents...
February 26, 2018: Scientific Reports
Monique Fontaine, Isabelle Kim, Anne-Frédérique Dessein, Karine Mention-Mulliez, Dries Dobbelaere, Claire Douillard, Guilhem Sole, Manuel Schiff, Roland Jaussaud, Caroline Espil-Taris, Audrey Boutron, Wim Wuyts, Cécile Acquaviva, Christine Vianey-Saban, Dominique Roland, Marie Joncquel-Chevalier Curt, Joseph Vamecq
Carnitine palmitoyltransferase type 2 (CPT2) deficiency, a mitochondrial fatty acid oxidation disorder (MFAOD), is a cause of myopathy in its late clinical presentation. As for other MFAODs, its diagnosis may be evocated when blood acylcarnitine profile is abnormal. However, a lack of abnormalities or specificity in this profile is not exclusive of CPT2 deficiency. Our retrospective study reports clinical and biological data in a cohort of 11 patients with circulating acylcarnitine profile unconclusive enough for a specific diagnosis orientation...
February 12, 2018: Molecular Genetics and Metabolism
Marie Joncquel-Chevalier Curt, Marie-Adélaïde Bout, Monique Fontaine, Isabelle Kim, Guillemette Huet, Soumeya Bekri, Gilles Morin, Stéphanie Moortgat, Alexandre Moerman, Jean-Marie Cuisset, David Cheillan, Joseph Vamecq
Creatine transporter is currently the focus of renewed interest with emerging roles in brain neurotransmission and physiology, and the bioenergetics of cancer metastases. We here report on amendments of a standard creatine uptake assay which might help clinical chemistry laboratories to extend their current range of measurements of creatine and metabolites in body fluids to functional enzyme explorations. In this respect, short incubation times and the use of a stable-isotope-labeled substrate (D3 -creatine) preceded by a creatine wash-out step from cultured fibroblast cells by removal of fetal bovine serum (rich in creatine) from the incubation medium are recommended...
February 16, 2018: Molecular Genetics and Metabolism
B Fraysse, V Couloigner, D Chevalier
No abstract text is available yet for this article.
February 2018: European Annals of Otorhinolaryngology, Head and Neck Diseases
Estelle Lebègue, Carole Farre, Catherine Jose, Joelle Saulnier, Florence Lagarde, Yves Chevalier, Carole Chaix, Nicole Jaffrezic-Renault
Polydiacetylene (PDA) inserted in films or in vesicles has received increasing attention due to its property to undergo a blue-to-red colorimetric transition along with a change from non-fluorescent to fluorescent upon application of various stimuli. In this review paper, the principle for the detection of various microorganisms (bacteria, directly detected or detected through the emitted toxins or through their DNA, and viruses) and of antibacterial and antiviral peptides based on these responsive PDA vesicles are detailed...
February 15, 2018: Sensors
Eleazar Rodriguez, Jonathan Chevalier, Hassan El Ghoul, Kristoffer Voldum-Clausen, John Mundy, Morten Petersen
DNA damage observed during plant immune responses is reported to be an intrinsic component of plant immunity. However, other immune responses may suppress DNA damage to maintain host genome integrity. Here, we show that immunity-related DNA damage can be abrogated by preventing cell death triggered by Nucleotide-binding, Leucine-rich-repeat immune Receptors (NLRs). SNI1 (suppressor of npr1-1, inducible 1), a subunit of the structural maintenance of chromosome (SMC) 5/6 complex, was reported to be a negative regulator of systemic acquired resistance (SAR) and to be necessary for controlling DNA damage...
February 20, 2018: PLoS Genetics
Francois Bethoux, Jonathan S Varsanik, Timothy W Chevalier, Elkan F Halpern, Darlene Stough, Zebadiah M Kimmel
BACKGROUND: Walking speed is an important measure of gait impairment in multiple sclerosis (MS). The clinical assessment of walking speed requires dedicated time, space, and personnel, and may not accurately gauge real-world performance. The term "Ambient Measurement System" (AMS) refers to a new class of device that passively measures walking speed at home, without the need for dedicated space or specialized setup. This study compared an AMS, Echo5D, versus in-clinic standard measures of walking speed on a straight path...
February 8, 2018: Gait & Posture
Julie Lamure, Marlène Chevalier, Pascal Rathelot, Françoise Mignolet, Isabelle Precheur
Frail older adults often experience swallowing disorders, prompting nursing staff to crush tablets, open capsules, and mix drugs into their meals or gelled water. However, crushing drugs can lead to pharmacological and gustatory problems. As crushed drugs can stay in prolonged contact with oral microbial biofilm, the current study aimed to investigate their antimicrobial properties. Crushed drugs were diluted in 1 mL of isotonic water and assayed in vitro for: (a) growth inhibition of five bacterial strains and Candida albicans by the diffusion method; (b) inhibition of Streptococcus salivarius and C...
February 13, 2018: Research in Gerontological Nursing
Robert L Chevalier
No abstract text is available yet for this article.
February 15, 2018: Journal of the American Society of Nephrology: JASN
Brian M Chase, J Tyler Faith, Alex Mackay, Manuel Chevalier, Andrew S Carr, Arnoud Boom, Sophak Lim, Paula J Reimer
Africa's southern Cape is a key region for the evolution of our species, with early symbolic systems, marine faunal exploitation, and episodic production of microlithic stone tools taken as evidence for the appearance of distinctively complex human behavior. However, the temporally discontinuous nature of this evidence precludes ready assumptions of intrinsic adaptive benefit, and has encouraged diverse explanations for the occurrence of these behaviors, in terms of regional demographic, social and ecological conditions...
January 2018: Journal of Human Evolution
Dimitri Renard, Constance Chevalier, Anne Wacongne
No abstract text is available yet for this article.
February 6, 2018: Practical Neurology
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