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https://www.readbyqxmd.com/read/28873292/dose-exposure-simulation-for-piperacillin-tazobactam-dosing-strategies-in-infants-and-young-children
#1
Céline Thibault, Nastya Kassir, Yves Théorêt, France Varin, Catherine Litalien, Julie Autmizguine
BACKGROUND: Extended piperacillin-tazobactam (TZP) infusions have been associated with favourable outcomes. There are currently no pediatric dosing recommendations. OBJECTIVES: To determine appropriate TZP dosing strategies in children 2 months - 6 years according to age and different minimal inhibitory concentrations (MICs). METHODS: Age and weight were simulated for 1000 children. Post-hoc pharmacokinetic parameter estimates were generated using published clearance and volume of distribution data...
August 21, 2017: Journal of Population Therapeutics and Clinical Pharmacology
https://www.readbyqxmd.com/read/28836228/catherine-larr%C3%A3-re-rapha%C3%A3-l-larr%C3%A3-re-penser-et-agir-avec-la-nature-une-enqu%C3%A3%C2%AAte-philosophique-%C3%A3-ditions-la-d%C3%A3-couverte-coll-sciences-humaines-france-2015-374%C3%A2-pp-%C3%A2-14-99
#2
Héloïse Varin
No abstract text is available yet for this article.
September 2017: History and Philosophy of the Life Sciences
https://www.readbyqxmd.com/read/28791387/atelocollagen-mediated-in-vivo-sirna-transfection-in-ovarian-carcinoma-is-influenced-by-tumor-site-sirna-target-and-administration-route
#3
Matthieu Meryet-Figuière, Charlotte Lecerf, Emilie Varin, Jean-Luc Coll, Marie-Hélène Louis, Soizic Dutoit, Florence Giffard, Cécile Blanc-Fournier, Siham Hedir, Nicolas Vigneron, Emilie Brotin, Laurent Pelletier, Véronique Josserand, Christophe Denoyelle, Laurent Poulain
Ovarian cancer is the leading cause of death from gynecological malignancies worldwide, and innate or acquired chemoresistance of ovarian cancer cells is the major cause of therapeutic failure. It has been demonstrated that the concomitant inhibition of Bcl-xL and Mcl-1 anti-apoptotic activities is able to trigger apoptosis in chemoresistant ovarian cancer cells. In this context, siRNA-mediated Bcl‑xL and Mcl-1 inhibition constitutes an appealing strategy by which to eliminate chemoresistant cancer cells...
August 4, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28782710/use-of-nebulized-milrinone-in-cardiac-surgery-comparison-of-vibrating-mesh-and-simple-jet-nebulizers
#4
Paul Gavra, Maxime Laflamme, André Y Denault, Yves Théôret, Louis P Perrault, France Varin
Cardiopulmonary bypass triggers an ischemia-reperfusion injury with endothelial dysfunction in the pulmonary circulation which can result in pulmonary hypertension. Inhaled milrinone reduces this reperfusion phenomenon and two methods commonly available for administering it are simple jet and vibrating mesh nebulization. However, neither their generated milrinone particle size profiles, nor their ability to aid endothelial relaxation have been compared. Simple jet and vibrating mesh particle size distributions of milrinone were verified through cascade impaction and their efficacy was tested on a cardiopulmonary bypass (CPB) swine model...
August 4, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28753152/comment-on-a-novel-method-of-human-adipose-derived-stem-cell-isolation-with-resultant-increased-cell-yield
#5
Jérôme Laloze, Nicolas Bertheuil, Julie Usseglio-Grosso, Audrey Varin, Benoit Chaput
No abstract text is available yet for this article.
July 15, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28744197/neuronal-cholesterol-accumulation-induced-by-cyp46a1-down-regulation-in-mouse-hippocampus-disrupts-brain-lipid-homeostasis
#6
Sophie Ayciriex, Fathia Djelti, Sandro Alves, Anne Regazzetti, Mathieu Gaudin, Jennifer Varin, Dominique Langui, Ivan Bièche, Eloise Hudry, Delphine Dargère, Patrick Aubourg, Nicolas Auzeil, Olivier Laprévote, Nathalie Cartier
Impairment in cholesterol metabolism is associated with many neurodegenerative disorders including Alzheimer's disease (AD). However, the lipid alterations underlying neurodegeneration and the connection between altered cholesterol levels and AD remains not fully understood. We recently showed that cholesterol accumulation in hippocampal neurons, induced by silencing Cyp46a1 gene expression, leads to neurodegeneration with a progressive neuronal loss associated with AD-like phenotype in wild-type mice. We used a targeted and non-targeted lipidomics approach by liquid chromatography coupled to high-resolution mass spectrometry to further characterize lipid modifications associated to neurodegeneration and cholesterol accumulation induced by CYP46A1 inhibition...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28719946/cell-assisted-lipotransfer-friend-or-foe-in-fat-grafting-systematic-review-and-meta-analysis
#7
REVIEW
J Laloze, A Varin, J Gilhodes, N Bertheuil, J L Grolleau, J Brie, J Usseglio, L Sensebe, T Filleron, B Chaput
BACKGROUND: Autologous fat grafting is a common procedure for soft-tissue reconstruction but is associated with a graft resorption rate ranging from 20% to 80%. To improve the fat graft survival rate, a new technique, called cell-assisted lipotransfer (CAL), was developed. With CAL, fat is injected along with adipose-derived stromal cells (ASCs) that are assumed to improve fat survival rate. We conducted an evidence-based meta-analysis to evaluate the efficacy and safety of CAL as compared with conventional autologous fat grafting (non-CAL)...
July 18, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28661333/acidogenesis-and-two-phase-codigestion-of-fats-oils-and-greases-and-municipal-biosolids
#8
Ross Varin, John Novak, Charles Bott
  Acidogenic codigestion of fats, oils, and greases (FOG) was studied using suspended growth sludge digesters operated as batch fed reactors that were fed twice daily. The digesters were maintained at a 2-day retention time and at 37 °C to mimic the acid phase of an acid-gas digestion system. As FOG loading rates increased, volatile fatty acid (VFA) production was found to increase, although the percentage of VFA production compared to theoretical values decreased exponentially to just 20% at the highest loading rates...
November 1, 2016: Water Environment Research: a Research Publication of the Water Environment Federation
https://www.readbyqxmd.com/read/28656887/corrupted-adipose-tissue-endogenous-myelopoiesis-initiates-diet-induced-metabolic-disease
#9
Elodie Luche, Virginie Robert, Vincent Cuminetti, Celine Pomié, Quentin Sastourné-Arrey, Aurélie Waget, Emmanuelle Arnaud, Audrey Varin, Elodie Labit, Patrick Laharrague, Remy Burcelin, Louis Casteilla, Beatrice Cousin
Activation and increased numbers of inflammatory macrophages, in adipose tissue (AT) are deleterious in metabolic diseases. Up to now, AT macrophages (ATM) accumulation was considered to be due to blood infiltration or local proliferation, although the presence of resident hematopoietic stem/progenitor cells (Lin-/Sca+/c-Kit+; LSK phenotype) in the AT (AT-LSK) has been reported. By using transplantation of sorted AT-LSK and gain and loss of function studies we show that some of the inflammatory ATM inducing metabolic disease, originate from resident AT-LSK...
June 28, 2017: ELife
https://www.readbyqxmd.com/read/28652100/current-role-for-radioisotope-synovectomy
#10
Vincent André, Vincent Dalibard, Emmanuelle Dernis, Stéphane Varin, Grégoire Cormier
Radioisotope synovectomy has been extensively used to treat patients with chronic inflammatory joint disease but has moved to a less prominent position since the introduction of new and highly effective drugs. Remaining indications are refractory synovitis, pigmented villonodular synovitis as an adjunct to surgery, and hemophilic arthropathy. The three main radioisotopes used are yttrium-90, rhenium-186, and erbium-189. Radioisotope synovectomy should be performed only by highly experienced professionals, to minimize the risk of injection-related complications...
June 23, 2017: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/28651627/induction-of-endoplasmic-reticulum-calcium-pump-expression-during-early-leukemic-b-cell-differentiation
#11
Lamia Aït Ghezali, Atousa Arbabian, Hervé Roudot, Jean-Philippe Brouland, Fanny Baran-Marszak, Evelyn Salvaris, Andrew Boyd, Hans G Drexler, Agnes Enyedi, Remi Letestu, Nadine Varin-Blank, Bela Papp
BACKGROUND: Endoplasmic reticulum (ER) calcium storage and release play important roles in B lymphocyte maturation, survival, antigen-dependent cell activation and immunoglobulin synthesis. Calcium is accumulated in the endoplasmic reticulum (ER) by Sarco/Endoplasmic Reticulum Calcium ATPases (SERCA enzymes). Because lymphocyte function is critically dependent on SERCA activity, it is important to understand qualitative and quantitative changes of SERCA protein expression that occur during B lymphoid differentiation and leukemogenesis...
June 26, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28590968/mechanically-isolated-stromal-vascular-fraction-by-nanofat-emulsification-techniques
#12
Nicolas Bertheuil, Audrey Varin, Raphael Carloni, Paul Girard, Benoit Chaput
No abstract text is available yet for this article.
September 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28587715/diffusion-weighted-whole-body-mri-for-evaluation-of-early-response-in-multiple-myeloma
#13
C Lacognata, F Crimì, A Guolo, C Varin, E De March, S Vio, A Ponzoni, G Barilà, A Lico, A Branca, E De Biasi, F Gherlinzoni, V Scapin, E Bissoli, T Berno, R Zambello
AIM: To evaluate the modifications of the apparent diffusion coefficient (ADC) in myelomatous lesions before and after induction treatment and the correlation with patient response to therapy according to International Myeloma Working Group (IMWG) criteria. MATERIALS AND METHODS: A homogeneous group of 18 patients with a diagnosis of symptomatic multiple myeloma who underwent whole-body MRI with diffusion-weighted imaging (DWI-MRI) before and after bortezomib-based induction chemotherapy were evaluated prospectively...
October 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28580131/recent-insights-into-the-implications-of-metabolism-in-plasmacytoid-dendritic-cell-innate-functions-potential-ways-to-control-these-functions
#14
REVIEW
Philippe Saas, Alexis Varin, Sylvain Perruche, Adam Ceroi
There are more and more data concerning the role of cellular metabolism in innate immune cells, such as macrophages or conventional dendritic cells. However, few data are available currently concerning plasmacytoid dendritic cells (PDC), another type of innate immune cells. These cells are the main type I interferon (IFN) producing cells, but they also secrete other pro-inflammatory cytokines (e.g., tumor necrosis factor or interleukin [IL]-6) or immunomodulatory factors (e.g., IL-10 or transforming growth factor-β)...
2017: F1000Research
https://www.readbyqxmd.com/read/28552651/the-gut-microbiota-as-a-mediator-of-metabolic-benefits-after-bariatric-surgery
#15
REVIEW
Fernando F Anhê, Thibault V Varin, Jonathan D Schertzer, André Marette
Bariatric surgery is based on major anatomic rearrangements in the gastrointestinal tract that coincide with functional and taxonomic changes in gut microbial communities. These alterations in gut anatomy and in the microbiota are associated with early resolution of obesity-related impairment of glycemic control and are marked weight loss in the long term. Moreover, altered bile acid metabolism has been implicated in the control of energy homeostasis, emerging as a pivotal orchestrator in the gut microbiota-mediated effects of bariatric surgery...
August 2017: Canadian Journal of Diabetes
https://www.readbyqxmd.com/read/28541531/the-affordability-of-minimally-invasive-procedures-in-major-lung-resection-a-prospective-study
#16
Henri Gondé, Marc Laurent, André Gillibert, Omar-Matthieu Sarsam, Rémi Varin, Gaël Grimandi, Christophe Peillon, Jean-Marc Baste
OBJECTIVES: Minimally invasive procedures are used for the surgical treatment of lung cancer. Two techniques are proposed: video-assisted thoracic surgery or robotic-assisted thoracic surgery. Our goal was to study the economic impact of our long-standing program for minimally invasive procedures for major lung resection. METHODS: We conducted a single-centre, 1-year prospective cost study. Patients who underwent lobectomy or segmentectomy were included. Patient characteristics and perioperative outcomes were collected...
September 1, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28495521/efficacy-of-local-glucocorticoid-after-local-anesthetic-in-low-back-pain-with-lumbosacral-transitional-vertebra-a-randomized-placebo-controlled-double-blind-trial
#17
Joëlle Glémarec, Stéphane Varin, Céline Cozic, Gilles Tanguy, Christelle Volteau, Philippe Montigny, Benoît Le Goff, Christelle Darrieutort Laffite, Yves Maugars, Grégoire Cormier
OBJECTIVE: The primary objective of this study was to compare the efficacy of local injection of a local anesthetic with a glucocorticoid versus a local anesthetic with saline to treat low back pain due to lumbosacral transitional vertebras (LSTV) with a pseudoarticulation. METHODS: A randomized placebo-controlled double-blind study was conducted in patients with unilateral low back pain ascribed clinically to LSTV. Patients were randomized to lidocaine plus saline (LS group) or lidocaine plus cortivazol (LC group) injected locally under computed tomography guidance...
May 8, 2017: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/28457726/cell-assisted-lipotransfer-current-concepts
#18
J Laloze, A Varin, N Bertheuil, J L Grolleau, C Vaysse, B Chaput
Autologous fat transfer, or lipofilling, is a common technique used for soft tissue reconstruction. It has been used for many years, but the technique is associated with a significant graft resorption rate (20% to 80%). To improve the fat graft survival rate, several methods have been tested, and one has appeared more promising: cell-assisted lipotransfer (CAL). In the CAL method, fat is enriched with adipose-derived stromal cells (ASC), contained in the stromal vascular fraction (SVF) obtained after enzymatic digestion of fat or after cell culture to improve the fat survival rate...
April 27, 2017: Annales de Chirurgie Plastique et Esthétique
https://www.readbyqxmd.com/read/28456381/high-prevalence-and-moderate-diversity-of-pseudomonas-aeruginosa-in-the-u-bends-of-high-risk-units-in-hospital
#19
Amélie Varin, Benoît Valot, Pascal Cholley, Camille Morel, Michelle Thouverez, Didier Hocquet, Xavier Bertrand
The presence of P. aeruginosa in water supply is clearly identified as a risk factor for P. aeruginosa infection in critical care units, even if routes of transmission are often unclear and remain a matter of debate. We determined here the frequency of U-bends contaminated with P. aeruginosa in high-risk units and described the population structure of this opportunistic pathogen in a non-outbreak situation. Eighty-seven U-bends from sinks of rooms in five wards were sampled 3 times and P. aeruginosa was detected in 121 of the 261 (46...
April 22, 2017: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/28438331/-the-intestinal-microbiota-a-new-player-in-depression
#20
M Meyrel, L Varin, B Detaint, F Mouaffak
Depression is the leading cause of disability in the world according to the World Health Organization. The effectiveness of the available antidepressant therapies is limited. Data from the literature suggest that some subtypes of depression may be associated with chronic low grade inflammation. The uncovering of the role of intestinal microbiota in the development of the immune system and its bidirectional communication with the brain have led to growing interest on reciprocal interactions between inflammation, microbiota and depression...
April 21, 2017: L'Encéphale
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