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Karina S Gobin, Mary Hintermeyer, Bertrand Boisson, Maya Chrabieh, Pegah Ghandil, Anne Puel, Capucine Picard, Jean-Laurent Casanova, John Routes, James Verbsky
[This corrects the article on p. 83 in vol. 5, PMID: 28503543.].
2018: Frontiers in Pediatrics
Geromy G Moore, Brian M Mack, Shannon B Beltz, Olivier Puel
BACKGROUND: Aspergillus arachidicola is an aflatoxigenic fungal species, first isolated from the leaves of a wild peanut species native to Argentina. It has since been reported in maize, Brazil nut and human sputum samples. This aflatoxigenic species is capable of secreting both B and G aflatoxins, similar to A. parasiticus and A. nomius. It has other characteristics that may result in its misidentification as one of several other section Flavi species. This study offers a preliminary analysis of the A...
March 9, 2018: BMC Genomics
Christelle El Hajj Assaf, Selma Snini, Souria Tadrist, Sylviane Bailly, Claire Naylies, Isabelle P Oswald, Sophie Lorber, Olivier Puel
Penicillium expansum, the causal agent of the blue mold disease, produces the mycotoxins patulin and citrinin among other secondary metabolites. Secondary metabolism is associated with fungal development, which responds to numerous biotic and abiotic external triggers. The global transcription factor VeA plays a key role in the coordination of secondary metabolism and differentiation processes in many fungal species. The specific role of VeA in P. expansum remains unknown. A null mutant PeΔveA strain and a complemented PeΔveA:veA strain were generated in P...
March 8, 2018: Molecular Plant Pathology
Aline Mendes, Anne Bertrand, Foudil Lamari, Olivier Colliot, Alexandre Routier, Olivier Godefroy, Frédérique Etcharry-Bouyx, Olivier Moreaud, Florence Pasquier, Philippe Couratier, Karim Bennys, Martine Vercelletto, Olivier Martinaud, Bernard Laurent, Jérémie Pariente, Michèle Puel, Stéphane Epelbaum, Serge Belliard, Takoua Kaaouana, Ludovic Fillon, Marie Chupin, Bruno Dubois, Marc Teichmann
OBJECTIVE: To reveal the prevalence and localization of cerebral microbleeds (CMBs) in the 3 main variants of primary progressive aphasia (PPA) (logopenic, semantic, and nonfluent/agrammatic), to identify the relationship with underlying Alzheimer pathology, and to explore whether CMBs contribute to language breakdown. METHODS: We used a cross-sectional design in a multicenter cohort of 82 patients with PPA and 19 similarly aged healthy controls. MRI allowed for rating CMBs (2-dimensional gradient recalled echo T2*, susceptibility weighted imaging sequences) and white matter hyperintensities...
February 14, 2018: Neurology
M G Theumer, Y Henneb, L Khoury, S P Snini, S Tadrist, C Canlet, O Puel, I P Oswald, M Audebert
Aflatoxins are found as food contaminant and some of them demonstrate a carcinogenic effect. The aflatoxins biosynthetic pathway involves 15 successive steps. The aim of this study was to compare the toxicity of aflatoxins and their precursors in three human cell lines. We tested the four aflatoxins and two of their metabolites; three early metabolic precursors and two late biosynthetic precursors. Cyclopiazonic acid, synthesized in parallel with aflatoxins, was also tested. The cytotoxicity and the genotoxicity was evaluated with the γH2AX assay in three human cell lines with different bioactivation capacities...
February 5, 2018: Toxicology Letters
T Hautbergue, E L Jamin, L Debrauwer, O Puel, I P Oswald
Fungal secondary metabolites are defined by bioactive properties that ensure adaptation of the fungus to its environment. Although some of these natural products are promising sources of new lead compounds especially for the pharmaceutical industry, others pose risks to human and animal health. The identification of secondary metabolites is critical to assessing both the utility and risks of these compounds. Since fungi present biological specificities different from other microorganisms, this review covers the different strategies specifically used in fungal studies to perform this critical identification...
January 31, 2018: Natural Product Reports
Alexandre Karkas, Nicolas Menjot de Champfleur, Alain Uziel, Michel Mondain, Jean-Luc Puel, Frédéric Venail
HYPOTHESIS: Evaluate the benefit of preoperative surgical planning using computed tomography (CT) for atraumatic cochlear implantation. BACKGROUND: The surgical technique has a direct impact on hearing and structure preservation. Much interest has been given to depth of electrode insertion. We focused on electrode diameter depending on exposure of round window membrane (RWM) as calculated on preoperative CT. METHODS: Measurements were calculated radiologically and anatomically on 10 temporal bones...
March 2018: Otology & Neurotology
Sanem Eren Akarcan, Ezgi Ulusoy Severcan, Neslihan Edeer Karaca, Esra Isik, Guzide Aksu, Mélanie Migaud, Ferda Evin Gurkan, Elif Azarsiz, Anne Puel, Jean-Laurent Casanova, Necil Kutukculer
Chronic Mucocutaneous Candidiasis (CMC) is the chronic, recurrent, noninvasive Candida infections of the skin, mucous membranes, and nails. A 26-month-old girl was admitted with the complaints of recurrent oral Candidiasis, diarrhea, and respiratory infections. Candida albicans grew in oral mucosa swab. CMV and EBV DNA titers were elevated. She had hypergammaglobulinemia; IgE level, percentages of lymphocyte subgroups, and in vitro T-cell proliferation responses were normal. She had parenchymal nodules within the lungs and a calcific nodule in the liver...
2017: Case Reports in Immunology
J Li, J-L Casanova, A Puel
Interleukin (IL)-17A is a pro-inflammatory cytokine in mice and humans. It is recognized as a key factor for the protection of mice against various pathogens, but it also underlies pathogenic inflammatory responses in numerous mouse models. The inborn errors of IL-17A- and IL-17F-mediated immunity identified in humans in the last decade have revealed that IL-17A and IL-17F are key players in mucocutaneous immunity to Candida albicans, and, to a lesser extent, Staphylococcus aureus. By contrast, there is currently no genetic evidence for a causal link between excess of IL-17 and autoimmunity, autoinflammation, or allergy in humans...
November 29, 2017: Mucosal Immunology
Juan Li, Donald C Vinh, Jean-Laurent Casanova, Anne Puel
It has been estimated that there are at least 1.5 million fungal species, mostly present in the environment, but only a few of these fungi cause human disease. Most fungal diseases are self-healing and benign, but some are chronic or life-threatening. Acquired and inherited defects of immunity, including breaches of mucocutaneous barriers and circulating leukocyte deficiencies, account for most severe modern-day mycoses. Other types of infection typically accompany these fungal infections. More rarely, severe fungal diseases can strike otherwise healthy individuals...
November 9, 2017: Current Opinion in Microbiology
Glenn Gauderat, Nicole Picard-Hagen, Pierre-Louis Toutain, Rémi Servien, Catherine Viguié, Sylvie Puel, Marlène Z Lacroix, Tanguy Corbel, Alain Bousquet-Melou, Véronique Gayrard
Bisphenol A (BPA) risk assessment is hampered by the difficulty of determining the extent of internal exposure in the human fetus and uncertainties regarding BPA toxicokinetics (TK) in the maternal-fetal unit. A feto-maternal TK model describing BPA and BPA glucuronide (BPAG) disposition in sheep was humanized, using human TK data obtained after d6-BPA administration on a cookie, to predict BPA and BPAG kinetics in the human mother-fetus unit. Validation of the model predictions included the assessed dose proportionality of BPA and BPAG disposition and the similarity between the simulated and measured time courses of BPA and BPAG in fetal rhesus monkeys after BPA maternal dosing...
November 10, 2017: Scientific Reports
Flore Grandin, Nicole Picard-Hagen, Véronique Gayrard, Sylvie Puel, Catherine Viguié, Pierre-Louis Toutain, Laurent Debrauwer, Marlène Z Lacroix
Regulatory measures and public concerns regarding bisphenol A (BPA) have led to its replacement by structural analogues, such as Bisphenol S (BPS), in consumer products. At present, no toxicokinetic investigations have been conducted to assess the factors determining human internal exposure to BPS for subsequent risk assessment. Toxicokinetic studies require reliable analytical methods to measure the plasma concentrations of BPS and its main conjugated metabolite, BPS-glucuronide (BPS-G). An efficient on-line SPE-UPLC-MS/MS method for the simultaneous quantification of BPS and BPS-G in ovine plasma was therefore developed and validated in accordance with the European Medicines Agency guidelines for bioanalytical method validation...
December 1, 2017: Journal of Chromatography. A
Julia Hiller, Beate Hagl, Renate Effner, Anne Puel, Martin Schaller, Birgit Mascher, Stefanie Eyerich, Kilian Eyerich, Annette F Jansson, Johannes Ring, Jean-Laurent Casanova, Ellen D Renner, Claudia Traidl-Hoffmann
No abstract text is available yet for this article.
October 17, 2017: Journal of Investigative Dermatology
Christo Kole, Laurence Klipfel, Ying Yang, Vanessa Ferracane, Frederic Blond, Sacha Reichman, Géraldine Millet-Puel, Emmanuelle Clérin, Najate Aït-Ali, Delphine Pagan, Hawa Camara, Marie-Noëlle Delyfer, Emeline F Nandrot, Jose-Alain Sahel, Olivier Goureau, Thierry Léveillard
Inherited retinal degenerations are blinding diseases characterized by the loss of photoreceptors. Their extreme genetic heterogeneity complicates treatment by gene therapy. This has motivated broader strategies for transplantation of healthy retinal pigmented epithelium to protect photoreceptors independently of the gene causing the disease. The limited clinical benefit for visual function reported up to now is mainly due to dedifferentiation of the transplanted cells that undergo an epithelial-mesenchymal transition...
September 8, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
J Dupouy, F Ory-Magne, C Mekies, V Rousseau, M Puel, K Rerat, J Pariente, C Brefel-Courbon
BACKGROUND: Subjective cognitive complaint (SCC) is a criterion recommended by the Movement Disorder Society (MDS) task force for the diagnosis of mild cognitive impairment (MCI). Until now there were few specific tools for detecting SCC in PD. We sought to develop a new tool to assess SCC specifically dedicated for PD. MATERIALS AND METHODS: We set a group of experts in movements disorders and neurocognition to develop an easy-to-use tool based on a visual analogue scale (VAS) for five cognitive domains: memory, executive functions, spatial orientation, attention, and language...
January 2018: Acta Neurologica Scandinavica
Isaura Caceres, Rhoda El Khoury, Sylviane Bailly, Isabelle P Oswald, Olivier Puel, Jean-Denis Bailly
Aspergillus flavus, a soil-borne pathogen, represents a danger for humans and animals since it produces the carcinogenic mycotoxin Aflatoxin B1 (AFB1). Approaches aiming the reduction of this fungal contaminant mainly involve chemicals that may also be toxic. Therefore, identification and characterization of natural anti-aflatoxigenic products represents a sustainable alternative strategy. Piperine, a major component of black and long peppers, has been previously demonstrated asan AFB1-inhibitor; nevertheless its mechanism of action was yet to be elucidated...
October 2017: Fungal Genetics and Biology: FG & B
Emilie Lacot, Stéphane Vautier, Stefan Kőhler, Jérémie Pariente, Chris B Martin, Michèle Puel, Jean-Albert Lotterie, Emmanuel J Barbeau
Although it is known that medial temporal lobe (MTL) structures support declarative memory, the fact these structures have different architectonics and circuitry suggests they may also play different functional roles. Selective lesions of MTL structures offer an opportunity to understand these roles. We report, in this study, on JMG, a patient who presents highly unusual lesions that completely affected all MTL structures except for the right hippocampus and parts of neighbouring medial parahippocampal cortex...
September 2017: Neuropsychologia
Estelle Grasset, Anthony Puel, Julie Charpentier, Xavier Collet, Jeffrey E Christensen, François Tercé, Rémy Burcelin
No abstract text is available yet for this article.
July 5, 2017: Cell Metabolism
Charline Miot, Kohsuke Imai, Chihaya Imai, Anthony J Mancini, Zeynep Yesim Kucuk, Tokomki Kawai, Ryuta Nishikomori, Etsuro Ito, Isabelle Pellier, Sophie Dupuis Girod, Jeremie Rosain, Shinya Sasaki, Shanmuganathan Chandrakasan, Jana Pachlopnik Schmid, Tsubasa Okano, Estelle Colin, Alberto Olaya-Vargas, Marco Yamazaki-Nakashimada, Waseem Qasim, Sara Espinosa Padilla, Andrea Jones, Alfons Krol, Nyree Cole, Stephen Jolles, Jack Bleesing, Thomas Vraetz, Andrew R Gennery, Mario Abinun, Tayfun Güngör, Beatriz Costa-Carvalho, Antonio Condino-Neto, Paul Veys, Steven M Holland, Gulbu Uzel, Despina Moshous, Benedicte Neven, Stéphane Blanche, Stephan Ehl, Rainer Döffinger, Smita Y Patel, Anne Puel, Jacinta Bustamante, Erwin W Gelfand, Jean-Laurent Casanova, Jordan S Orange, Capucine Picard
X-linked recessive ectodermal dysplasia with immunodeficiency is a rare primary immunodeficiency caused by hypomorphic mutations of the IKBKG gene encoding the nuclear factor κB essential modulator (NEMO) protein. This condition displays enormous allelic, immunological, and clinical heterogeneity, and therapeutic decisions are difficult because NEMO operates in both hematopoietic and nonhematopoietic cells. Hematopoietic stem cell transplantation (HSCT) is potentially life-saving, but the small number of case reports available suggests it has been reserved for only the most severe cases...
September 21, 2017: Blood
J Second, A-S Korganow, S Jannier, A Puel, D Lipsker
No abstract text is available yet for this article.
December 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
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