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https://www.readbyqxmd.com/read/28323870/contribution-of-sortase-srta2-to-lactobacillus-casei-bl23-inhibition-of-staphylococcus-aureus-internalization-into-bovine-mammary-epithelial-cells
#1
Renata F S Souza, Julien Jardin, Chantal Cauty, Lucie Rault, Damien S Bouchard, Luis G Bermúdez-Humarán, Philippe Langella, Vicente Monedero, Núbia Seyffert, Vasco Azevedo, Yves Le Loir, Sergine Even
Probiotics have been considered as a promising strategy to prevent various diseases in both humans and animals. This approach has gained interest in recent years as a potential means to control bovine mastitis. In a previous study, we found that several L. casei strains, including BL23, were able to inhibit the internalization of S. aureus, a major etiologic agent of mastitis, into bovine mammary epithelial cells (bMEC). This antagonism required a direct contact between L. casei and bMEC or S. aureus, suggesting the inhibition relied on interactions between L...
2017: PloS One
https://www.readbyqxmd.com/read/28289077/selective-activation-of-ampk-b1-containing-isoforms-improves-kidney-function-in-a-rat-model-of-diabetic-nephropathy
#2
Christopher T Salatto, Russell A Miller, Kimberly O Cameron, Emily Cokorinos, Allan Reyes, Jessica Ward, Matt Calabrese, Ravi Kurumbail, Francis Rajamohan, Amit S Kalgutkar, David A Tess, Andre Shavnya, Nathan E Genung, David J Edmonds, Aditi Jatkar, Benjamin S Maciejewski, Marina Amaro, Harmeet Gandhok, Mara Monetti, Katherine Cialdea, Eliza Bollinger, John M Kreeger, Timothy M Coskran, Alan C Opsahl, Germaine G Boucher, Morris J Birnbaum, Paul DaSilva-Jardine, Tim Rolph
Diabetic nephropathy remains an area of high unmet medical need, with current therapies slowing, but not preventing the progression of disease. A reduced phosphorylation state of adenosine monophosphate-activated protein kinase (AMPK) has been correlated with diminished kidney function in both human subjects and animal models of kidney disease. Here, we describe the identification of novel, potent, small molecule activators of AMPK that selectively activate AMPK heterotrimers containing the β1 subunit. After confirming that human and rodent kidney predominately express AMPK β1, we explore the effects of pharmacologic activation of AMPK in the ZSF-1 rat model of diabetic nephropathy...
March 13, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28273169/reversible-modulation-of-sirt1-activity-in-a-mouse-strain
#3
Katherine V Clark-Knowles, Xiaohong He, Karen Jardine, Josée Coulombe, Danielle Dewar-Darch, Annabelle Z Caron, Douglas A Gray, Michael W McBurney
The SIRT1 protein deacetylase is reported to have a remarkably wide spectrum of biological functions affecting such varied processes as aging, cancer, metabolism, neurodegeneration and immunity. However, the SIRT1 literature is also full of contradictions. To help establish the role(s) of SIRT1 in these and other biological processes, we set out to create a mouse in which the SIRT1 activity could be toggled between on and off states by fusing the estrogen receptor ligand-binding domain (ER) to the C terminus of the SIRT1 protein...
2017: PloS One
https://www.readbyqxmd.com/read/28254555/epidemiology-and-outcomes-of-arterial-ischemic-stroke-in-children-the-canadian-pediatric-ischemic-stroke-registry
#4
Gabrielle A deVeber, Adam Kirton, Frances A Booth, Jerome Y Yager, Elaine C Wirrell, Ellen Wood, Michael Shevell, Ann-Marie Surmava, Patricia McCusker, M Patricia Massicotte, Daune MacGregor, E Athen MacDonald, Brandon Meaney, Simon Levin, Bernard G Lemieux, Lawrence Jardine, Peter Humphreys, Michèle David, Anthony K C Chan, David J Buckley, Bruce H Bjornson
BACKGROUND: Pediatric arterial ischemic stroke remains incompletely understood. Population-based epidemiological data inform clinical trial design but are scant in this condition. We aimed to determine age-specific epidemiological characteristics of arterial ischemic stroke in neonates (birth to 28 days) and older children (29 days to 18 years). METHODS: We conducted a 16-year, prospective, national population-based study, the Canadian Pediatric Ischemic Stroke Registry, across all 16 Canadian acute care children's hospitals...
January 26, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28249740/bridging-science-and-traditional-knowledge-to-assess-cumulative-impacts-of-stressors-on-ecosystem-health
#5
Chrystal S Mantyka-Pringle, Timothy D Jardine, Lori Bradford, Lalita Bharadwaj, Andrew P Kythreotis, Jennifer Fresque-Baxter, Erin Kelly, Gila Somers, Lorne E Doig, Paul D Jones, Karl-Erich Lindenschmidt
Cumulative environmental impacts driven by anthropogenic stressors lead to disproportionate effects on indigenous communities that are reliant on land and water resources. Understanding and counteracting these effects requires knowledge from multiple sources. Yet the combined use of Traditional Knowledge (TK) and Scientific Knowledge (SK) has both technical and philosophical hurdles to overcome, and suffers from inherently imbalanced power dynamics that can disfavour the very communities it intends to benefit...
February 26, 2017: Environment International
https://www.readbyqxmd.com/read/28247997/bcl2-mutations-do-not-confer-adverse-prognosis-in-follicular-lymphoma-patients-treated-with-rituximab
#6
Sarah Huet, Edith Szafer-Glusman, Bruno Tesson, Luc Xerri, Wayne J Fairbrother, Kiran Mukhyala, Chris Bolen, Elizabeth Punnoose, Laurie Tonon, Catherine Chassagne-Clément, Pierre Feugier, Alain Viari, Fabrice Jardin, Gilles Salles, Pierre Sujobert
BCL2 mutations have been suggested to confer an adverse prognosis to follicular lymphoma (FL) patients, but their prognostic value has not been assessed in patients treated with a rituximab-containing regimen. Here we evaluated the prognostic value of BCL2 mutations in a large prospective cohort of 252 FL patients treated with immunochemotherapy in the PRIMA randomized trial. Using a DNA-targeted sequencing approach, we detected amino acid altering mutations in 135 patients (54%) and showed that these mutations were probably mediated by the over-activation of AICDA (Activation-induced cytidine deaminase) in the context of the t(14;18) translocation...
March 1, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28222710/predicting-medical-students-who-will-have-difficulty-during-their-clinical-training
#7
D L Jardine, J M McKenzie, T J Wilkinson
BACKGROUND: We aimed to classify the difficulties students had passing their clinical attachments, and explore factors which might predict these problems. METHODS: We analysed data from regular student progress meetings 2008-2012. Problem categories were: medical knowledge, professional behaviour and clinical skills. For each category we then undertook a predictive risk analysis. RESULTS: Out of 561 students, 203 were found to have one or more problem category and so were defined as having difficulties...
February 21, 2017: BMC Medical Education
https://www.readbyqxmd.com/read/28212937/impact-of-alemtuzumab-scheduling-on-graft-versus-host-disease-after-unrelated-donor-fludarabine-and-melphalan-allografts
#8
Kile Green, Kim Pearce, Rob S Sellar, Laura Jardine, Phillip L R Nicolson, Sandeep Nagra, Venetia Bigley, Graham Jackson, Anne M Dickinson, Kirsty Thomson, Stephen Mackinnon, Charles Craddock, Karl S Peggs, Matthew Collin
Alemtuzumab conditioning is highly effective at reducing the incidence of acute and chronic graft-versus-host disease (GVHD) in reduced-intensity fludarabine and melphalan transplantation with cyclosporine monotherapy. Less frequent and lower dose scheduling may be used with sibling donors, but an optimal regimen for matched unrelated donors has not been defined. In this retrospective observational study of 313 patients, the incidence and severity of GVHD was compared in patients receiving 3 different dose schedules: the standard 100-mg regimen (20 mg on days -7 to -3), 60 mg (30 mg on days -4 and -2), or 50 mg (10 mg on days -7 to -3)...
February 14, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28196522/xpo1-in-b-cell-hematological-malignancies-from-recurrent-somatic-mutations-to-targeted-therapy
#9
REVIEW
Vincent Camus, Hadjer Miloudi, Antoine Taly, Brigitte Sola, Fabrice Jardin
Many recent publications highlight the large role of the pivotal eukaryotic nuclear export protein exportin-1 (XPO1) in the oncogenesis of several malignancies, and there is emerging evidence that XPO1 inhibition is a key target against cancer. The clinical validation of the pharmacological inhibition of XPO1 was recently achieved with the development of the selective inhibitor of nuclear export compounds, displaying an interesting anti-tumor activity in patients with massive pre-treated hematological malignancies...
February 14, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28190573/stable-sulfur-isotopes-identify-habitat-specific-foraging-and-mercury-exposure-in-a-highly-mobile-fish-community
#10
Meghan K Carr, Timothy D Jardine, Lorne E Doig, Paul D Jones, Lalita Bharadwaj, Brett Tendler, John Chételat, Pete Cott, Karl-Erich Lindenschmidt
Tracking the uptake and transfer of toxic chemicals, such as mercury (Hg), in aquatic systems is challenging when many top predators are highly mobile and may therefore be exposed to chemicals in areas other than their location of capture, confounding interpretation of bioaccumulation trends. Here we show how the application of a less commonly used ecological tracer, stable sulfur isotope ratios ((34)S/(32)S, or δ(34)S), in a large river-delta-lake complex in northern Canada allows differentiation of resident from migrant fishes, beyond what was possible with more conventional (13)C/(12)C and (15)N/(14)N measurements...
May 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28165579/a-national-appraisal-of-haemodialysis-vascular-access-provision-in-scotland
#11
Scott W Oliver, Jacqueline Campbell, David B Kingsmore, Ram Kasthuri, Wendy Metcalfe, Jamie P Traynor, Denis Fischbacher-Smith, Alan G Jardine, Peter C Thomson
PURPOSE: Published registry data demonstrate longstanding variation in the utilisation of different vascular access (VA) modalities between Scottish renal units; this may reflect different clinical processes between centres. A comprehensive appraisal was undertaken to understand the processes underpinning VA creation and maintenance across Scotland. METHODS: A mixed methods approach was utilised. Fifty-two semi-structured interviews were conducted with patients and clinicians in all ten, adult and paediatric, Scottish renal units...
January 31, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28152114/left-sided-facial-pain-fullness-and-trismus
#12
Andrew G Woodhouse, Dinchen A Jardine, Allen O Mitchell
No abstract text is available yet for this article.
February 2, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28151412/a-trial-of-extending-hemodialysis-hours-and-quality-of-life
#13
Meg J Jardine, Li Zuo, Nicholas A Gray, Janak R de Zoysa, Christopher T Chan, Martin P Gallagher, Helen Monaghan, Stuart M Grieve, Rajesh Puranik, Hongli Lin, Josette M Eris, Ling Zhang, Jinsheng Xu, Kirsten Howard, Serigne Lo, Alan Cass, Vlado Perkovic
The relationship between increased hemodialysis hours and patient outcomes remains unclear. We randomized (1:1) 200 adult recipients of standard maintenance hemodialysis from in-center and home-based hemodialysis programs to extended weekly (≥24 hours) or standard (target 12-15 hours, maximum 18 hours) hemodialysis hours for 12 months. The primary outcome was change in quality of life from baseline assessed by the EuroQol 5 dimension instrument (3 level) (EQ-5D). Secondary outcomes included medication usage, clinical laboratory values, vascular access events, and change in left ventricular mass index...
February 1, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28126705/we-need-to-talk-about-depression-and-dialysis-but-what-questions-should-we-ask-and-does-anyone-know-the-answers
#14
EDITORIAL
Maree L Hackett, Meg J Jardine
No abstract text is available yet for this article.
February 7, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28125449/advancing-transplantation-new-questions-new-possibilities-in-kidney-and-liver-transplantation
#15
Jonas Wadström, Bo-Göran Ericzon, Philip F Halloran, Wolf O Bechstein, Gerhard Opelz, Daniel Serón, Josep Grinyó, Alexandre Loupy, Dirk Kuypers, Christophe Mariat, Marc Clancy, Alan G Jardine, Lluís Guirado, Bengt Fellström, John O'Grady, Jacques Pirenne, Jacqueline G O'Leary, Varuna Aluvihare, Pavel Trunečka, Umberto Baccarani, James Neuberger, Alejandro Soto-Gutierrez, Edward K Geissler, Monty Metzger, Muir Gray
No abstract text is available yet for this article.
February 2017: Transplantation
https://www.readbyqxmd.com/read/28100453/mechanisms-of-vasovagal-syncope-in-the-young-reduced-systemic-vascular-resistance-versus-reduced-cardiac-output
#16
Julian M Stewart, Marvin S Medow, Richard Sutton, Paul Visintainer, David L Jardine, Wouter Wieling
BACKGROUND: Syncope is a sudden transient loss of consciousness and postural tone caused by cerebral hypoperfusion. The most common form is vasovagal syncope (VVS). Presyncopal progressive early hypotension in older VVS patients is caused by reduced cardiac output (CO); younger patients have reduced systemic vascular resistance (SVR). Using a priori criteria for reduced CO (↓CO) and SVR (↓SVR), we studied 48 recurrent young fainters comparing subgroups of VVS with VVS-↓CO, VVS-↓SVR, and both VVS-↓CO&↓SVR...
January 18, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28099848/biophysical-attributes-of-cpg-presentation-control-tlr9-signaling-to-differentially-polarize-systemic-immune-responses
#17
Jardin A Leleux, Pallab Pradhan, Krishnendu Roy
It is currently unknown whether and how mammalian pathogen recognition receptors (PRRs) respond to biophysical patterns of pathogen-associated molecular danger signals. Using synthetic pathogen-like particles (PLPs) that mimic physical properties of bacteria or large viruses, we have discovered that the quality and quantity of Toll-like receptor 9 (TLR9) signaling by CpG in mouse dendritic cells (mDCs) are uniquely dependent on biophysical attributes; specifically, the surface density of CpG and size of the presenting PLP...
January 17, 2017: Cell Reports
https://www.readbyqxmd.com/read/28087881/role-of-stim2-in-cell-function-and-physiopathology
#18
Alejandro Berna-Erro, Isaac Jardin, Gines M Salido, Juan A Rosado
An endoplasmic reticulum (ER)-resident protein that regulates cytosolic and ER free-Ca(2+) concentration by induction of store-operated calcium entry: that is the original definition of STIM2 and its function. While its activity strongly depends on the amount of calcium stored in the ER, its function goes further, to intracellular signalling and gene expression. Initially under-studied owing to the prominent function of STIM1, STIM2 came to be regarded as vital in mice, gradually emerging as an important player in the nervous system, and cooperating with STIM1 in the immune system...
January 14, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28072043/compelled-to-risk-does-sexual-compulsivity-explain-the-connection-between-borderline-personality-disorder-features-and-number-of-sexual-partners
#19
Charles Jardin, Carla Sharp, Lorra Garey, Salome Vanwoerden, Nic Crist, Jon D Elhai, Michael J Zvolensky
Having more sexual partners increases the likelihood of new HIV infections among women. Women with more borderline personality disorder (BPD) features have been known to have greater numbers of sexual partners. However, the mechanisms linking BPD features with more sexual partners remain to be clarified. Sexual compulsivity (lack of control, increased distress over sexual behavior) may be one such explanatory factor, as it overlaps with BPD features (e.g., impulsivity, negative affectivity). The present study examined whether sexual compulsivity explained the relation of BPD features with number of sexual partners among a diverse sample of college females (N = 1,326)...
January 10, 2017: Journal of Personality Disorders
https://www.readbyqxmd.com/read/28062395/biallelic-mutations-in-dnajc21-cause-shwachman-diamond-syndrome
#20
Santhosh Dhanraj, Anna Matveev, Hongbing Li, Supanun Lauhasurayotin, Lawrence Jardine, Michaela Cada, Bozana Zlateska, Chetankumar S Tailor, Joseph Zhou, Roberto Mendoza-Londono, Ajoy Vincent, Peter R Durie, Stephen W Scherer, Johanna M Rommens, Elise Heon, Yigal Dror
No abstract text is available yet for this article.
January 6, 2017: Blood
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