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https://www.readbyqxmd.com/read/29781952/optimizing-temperature-and-oxygen-supports-long-term-culture-of-human-islets
#1
Hirotake Komatsu, Jeffrey Rawson, Leonard Medrano, Colin A Cook, Alyssa Barriga, Nelson Gonzalez, Mayra Salgado, Keiko Omori, Fouad Kandeel, Yu-Chong Tai, Yoko Mullen
BACKGROUND: Islet transplantation is a promising treatment for type-1 diabetes; however, donor shortage is a concern. Even when a pancreas is available, low islet yield limits the success of transplantation. Islet culture enables pooling of multiple low-yield isolations into an effective islet mass, but isolated islets rapidly deteriorate under conventional culture conditions. Oxygen depletion in the islet core, which leads to central necrosis and volume loss, is one of the major reasons for this deterioration...
May 16, 2018: Transplantation
https://www.readbyqxmd.com/read/29781812/pim-2-protein-kinase-negatively-regulates-t-cell-responses-in-transplantation-and-tumor-immunity
#2
Anusara Daenthanasanmak, Yongxia Wu, Supinya Iamsawat, Hung D Nguyen, David Bastian, MengMeng Zhang, M Hanief Sofi, Shilpak Chatterjee, Elizabeth G Hill, Shikhar Mehrotra, Andrew S Kraft, Xue-Zhong Yu
PIM kinase family members play a crucial role in promoting cell survival and proliferation via phosphorylation of their target substrates. In this study, we investigated the role of the PIM kinases with respect to T cell responses in transplantation and tumor immunity. We found that the PIM-2 isoform negatively regulated T cell responses to alloantigen, in contrast to the PIM-1 and PIM-3 isoforms, which acted as positive regulators. T cells deficient in PIM-2 demonstrated increased T cell differentiation toward Th1 subset, proliferation, and migration to target organs after allogeneic bone marrow transplantation, resulting in dramatically accelerated graft-versus-host disease (GVHD) severity...
May 21, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29778892/structure-based-design-of-novel-quinoxaline-2-carboxylic-acids-and-analogues-as-pim-1-inhibitors
#3
Bruno Oyallon, Marie Brachet-Botineau, Cédric Logé, Pascal Bonnet, Mohamed Souab, Thomas Robert, Sandrine Ruchaud, Stéphane Bach, Pascal Berthelot, Fabrice Gouilleux, Marie-Claude Viaud-Massuard, Caroline Denevault-Sabourin
We identified a new series of quinoxaline-2-carboxylic acid derivatives, targeting the human proviral integration site for Moloney murine leukemia virus-1 (HsPim-1) kinase. Seventeen analogues were synthesized providing useful insight into structure-activity relationships studied. Docking studies realized in the ATP pocket of HsPim-1 are consistent with an unclassical binding mode of these inhibitors. The lead compound 1 was able to block HsPim-1 enzymatic activity at nanomolar concentrations (IC50 of 74 nM), with a good selectivity profile against a panel of mammalian protein kinases...
May 11, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29778885/effects-of-hyperpolypharmacy-and-potentially-inappropriate-medications-pims-on-functional-decline-in-older-patients-discharged-from-acute-care-hospitals
#4
Paolo Fabbietti, Carmelinda Ruggiero, Federica Sganga, Sergio Fusco, Federica Mammarella, Norma Barbini, Laura Cassetta, Graziano Onder, Andrea Corsonello, Fabrizia Lattanzio, Mirko Di Rosa
AIM: To comparatively investigate the effects of hyperpolypharmacy and potentially inappropriate medications (PIMs) on functional decline in older patients after hospital discharge. METHODS: Our series consisted of 733 patients aged ≥65 consecutively enrolled in a multicenter observational longitudinal study. PIMs were defined on the basis of updated versions of Beers and STOPP criteria. The occurrence of functional decline was defined as the loss of independency in at least 1 basic activity of daily living (BADL) from discharge through 3-month follow-up visit...
May 16, 2018: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/29777062/brock-malignancy-risk-calculator-for-pulmonary-nodules-validation-outside-a-lung-cancer-screening-population
#5
Kaman Chung, Onno M Mets, Paul K Gerke, Colin Jacobs, Annemarie M den Harder, Ernst T Scholten, Mathias Prokop, Pim A de Jong, Bram van Ginneken, Cornelia M Schaefer-Prokop
OBJECTIVE: To assess the performance of the Brock malignancy risk model for pulmonary nodules detected in routine clinical setting. METHODS: In two academic centres in the Netherlands, we established a list of patients aged ≥40 years who received a chest CT scan between 2004 and 2012, resulting in 16 850 and 23 454 eligible subjects. Subsequent diagnosis of lung cancer until the end of 2014 was established through linking with the National Cancer Registry...
May 18, 2018: Thorax
https://www.readbyqxmd.com/read/29772669/debinding-and-sintering-of-an-injection-moulded-hypereutectic-al%C3%A2-si-alloy
#6
Jiaqi Ni, Muhuo Yu, Keqing Han
Hypereutectic Al⁻Si (20 wt.%) alloy parts were fabricated by employing a powder injection moulding (PIM) technique with a developed multi-component binder system composed of high-density polyethylene (35 wt.%), carnauba wax (62 wt.%) and stearic acid (3 wt.%). The feedstocks contained 83 wt.% metal powders. The debinding process was carried out by a combination of solvent extraction and thermal decomposition. The effects of solvent debinding variables such as kind of solvents, debinding temperatures and time, and the bulk surface area to volume ratios on the debinding process were investigated...
May 16, 2018: Materials
https://www.readbyqxmd.com/read/29770903/left-ventricular-restoration-devices-post-myocardial-infarction
#7
REVIEW
Tom Hendriks, Remco A J Schurer, Lawien Al Ali, Ad F M van den Heuvel, Pim van der Harst
Even in the era of percutaneous reperfusion therapy, left ventricular (LV) remodeling after myocardial infarction (MI) leading to heart failure remains a major health concern. Contractile dysfunction of the infarcted myocardium results in an increased pressure load, leading to maladaptive reshaping of the LV. Several percutaneous transcatheter procedures have been developed to deliver devices that restore LV shape and function. The purposes of this review are to discuss the spectrum of transcatheter devices that are available or in development for attenuation of adverse LV remodeling and to critically examine the available evidence for improvement of functional status and cardiovascular outcomes...
May 17, 2018: Heart Failure Reviews
https://www.readbyqxmd.com/read/29767640/burden-of-exposure-to-potential-interactions-between-antiretroviral-and-non-antiretroviral-medications-in-a-population-of-hiv-positive-patients-aged-50-years-or-older
#8
Alice Ranzani, Letizia Oreni, Massimiliano Agrò, Lorena van den Bogaart, Laura Milazzo, Andrea Giacomelli, Dario Cattaneo, Cristina Gervasoni, Anna Lisa Ridolfo
BACKGROUND: As HIV-infected patients aged 50 years or older are at increased risk of comorbidities and multidrug treatments, we examined their exposure to the potential drug-drug interactions (PDDIs) of antiretroviral (ARV) and other medications. METHODS: This cross-sectional study involved the patients aged 50 years or older receiving ARV and non-ARV medications at our clinic. PDDIs were identified using the University of Liverpool HIV Drug Interaction Checker...
June 1, 2018: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/29767272/the-esska-afas-international-consensus-statement-on-peroneal-tendon-pathologies
#9
REVIEW
Pim A van Dijk, David Miller, James Calder, Christopher W DiGiovanni, John G Kennedy, Gino M Kerkhoffs, Akos Kynsburtg, Daniel Havercamp, Stephane Guillo, Xavier M Oliva, Chris J Pearce, Helder Pereira, Pietro Spennacchio, Joanna M Stephen, C Niek van Dijk
INTRODUCTION: Peroneal tendon injuries are a significant cause of lateral ankle symptoms in the active population. Accurate diagnosis and prompt treatment is important for minimizing the risk of long-term sequelae associated with chronic peroneal tendinopathy. Although several studies have been published on diagnostic strategies and treatment outcomes, there is no consensus on the optimal management of peroneal tendon pathologies. PURPOSE: The purpose of this ESSKA-AFAS consensus statement was to conduct an international and multidisciplinary agreed guideline on management of patients with peroneal tendon pathologies...
May 16, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29765150/phase-i-studies-of-azd1208-a-proviral-integration-moloney-virus-kinase-inhibitor-in-solid-and-haematological-cancers
#10
Jorge Cortes, Kenji Tamura, Daniel J DeAngelo, Johann de Bono, David Lorente, Mark Minden, Geoffrey L Uy, Hagop Kantarjian, Lisa S Chen, Varsha Gandhi, Robert Godin, Karen Keating, Kristen McEachern, Karthick Vishwanathan, Janet Elizabeth Pease, Emma Dean
BACKGROUND: Proviral integration Moloney virus (PIM) kinases (PIM1, 2 and 3) are overexpressed in several tumour types and contribute to oncogenesis. AZD1208 is a potent ATP-competitive PIM kinase inhibitor investigated in patients with recurrent or refractory acute myeloid leukaemia (AML) or advanced solid tumours. METHODS: Two dose-escalation studies were performed to evaluate the safety and tolerability, and to define the maximum tolerated dose (MTD), of AZD1208 in AML and solid tumours...
May 16, 2018: British Journal of Cancer
https://www.readbyqxmd.com/read/29764378/grim-filter-fast-seed-location-filtering-in-dna-read-mapping-using-processing-in-memory-technologies
#11
Jeremie S Kim, Damla Senol Cali, Hongyi Xin, Donghyuk Lee, Saugata Ghose, Mohammed Alser, Hasan Hassan, Oguz Ergin, Can Alkan, Onur Mutlu
BACKGROUND: Seed location filtering is critical in DNA read mapping, a process where billions of DNA fragments (reads) sampled from a donor are mapped onto a reference genome to identify genomic variants of the donor. State-of-the-art read mappers 1) quickly generate possible mapping locations for seeds (i.e., smaller segments) within each read, 2) extract reference sequences at each of the mapping locations, and 3) check similarity between each read and its associated reference sequences with a computationally-expensive algorithm (i...
May 9, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29763431/the-efficacy-of-life-review-therapy-combined-with-memory-specificity-training-lrt-mst-targeting-cancer-patients-in-palliative-care-a-randomized-controlled-trial
#12
Gitta Kleijn, Birgit I Lissenberg-Witte, Ernst T Bohlmeijer, Bas Steunenberg, Kitty Knipscheer-Kuijpers, Vincent Willemsen, Annemarie Becker, Egbert F Smit, Corien M Eeltink, Anna M E Bruynzeel, Maurice van der Vorst, Remco de Bree, C René Leemans, Michiel W M van den Brekel, Pim Cuijpers, Irma M Verdonck-de Leeuw
BACKGROUND: The aim of this study was to evaluate the efficacy of an intervention combining Life Review Therapy (LRT) and Memory Specificity Training (MST) (LRT-MST) to improve ego-integrity and despair among cancer patients in palliative care. METHODS: In this multicentre randomized controlled trial, cancer patients in palliative care were randomized to the intervention group (LRT-MST; n = 55) or waiting-list control group (n = 52). LRT-MST is a 4-session home-based psychological intervention that aims to retrieve specific positive memories, to re-evaluate life events and to reconstruct the story of a patient's life, including the diagnosis of incurable cancer...
2018: PloS One
https://www.readbyqxmd.com/read/29762101/stimulus-familiarity-and-expectation-jointly-modulate-neural-activity-in-the-visual-ventral-stream
#13
Mariya E Manahova, Pim Mostert, Peter Kok, Jan-Mathijs Schoffelen, Floris P de Lange
Prior knowledge about the visual world can change how a visual stimulus is processed. Two forms of prior knowledge are often distinguished: stimulus familiarity (i.e., whether a stimulus has been seen before) and stimulus expectation (i.e., whether a stimulus is expected to occur, based on the context). Neurophysiological studies in monkeys have shown suppression of spiking activity both for expected and for familiar items in object-selective inferotemporal cortex. It is an open question, however, if and how these types of knowledge interact in their modulatory effects on the sensory response...
May 15, 2018: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/29759202/a-new-extraction-phase-based-on-a-polymer-inclusion-membrane-for-the-detection-of-chlorpyrifos-diazinon-and-cyprodinil-in-natural-water-samples
#14
Ruben Vera, Sara Insa, Clàudia Fontàs, Enriqueta Anticó
A simple and effective method for the detection of three pesticides (chlorpyrifos, diazinon and cyprodinil) is developed using a polymer inclusion membrane (PIM) prior to gas chromatography and mass spectrometry detection (GC-MS). Analytes are extracted from natural water samples using a 3 cm2 PIM made of the polymer, cellulose triacetate (CTA), and the plasticizer, nitrophenyl octyl ether (NPOE). Addition of the plasticizer to the CTA matrix is found to be necessary for the extraction of pesticides. After extraction, analytes are recovered from the membrane with 1 mL of acetonitrile and injected into the GC-MS system...
August 1, 2018: Talanta
https://www.readbyqxmd.com/read/29757652/a-supramolecular-nucleoside-based-gel-molecular-dynamics-simulation-and-characterization-of-its-nanoarchitecture-and-self-assembly-mechanism
#15
Maria Angelerou, Pim W J M Frederix, Matthew Wallace, Bin Yang, Alison Rodger, Dave J Adams, Maria Marlow, Mischa Zelzer
Amongst the diversity of existing supramolecular hydrogels, nucleic acid-based hydrogels are of particular interest for potential drug delivery and tissue engineering applications because of their inherent biocompatibility. Hydrogel performance is directly related to nanostructure and the self-assembly mechanism of the material, an aspect that is not well understood for nucleic acid-based hydrogels in general and has not yet been explored for cytosine based hydrogels in particular. Herein, we use a broad range of experimental characterization techniques along with molecular dynamics simulations to demonstrate the complementarity and applicability of both approaches for nucleic acid-based gelators in general and propose the self-assembly mechanism for a novel supramolecular gelator, N4-octanoyl-2'-deoxycytidine...
May 14, 2018: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29750809/histological-validation-of-calcifications-in-the-human-hippocampus-as-seen-on-computed-tomography
#16
Melissa E M Peters, Remko Kockelkoren, Esther J M de Brouwer, Huiberdina L Koek, Ronald L A W Bleys, Willem P Th M Mali, Jeroen Hendrikse, Annemieke M Rozemuller, Pim A de Jong
BACKGROUND: Calcifications within the hippocampus were recently described for the first time on computed tomography (CT). These calcifications appeared in patients older than 50 years, the prevalence increases with age and they may be associated with cognitive decline. The aim of this study was to determine the histological basis (the presence, severity and location) of these CT-detected hippocampal calcifications of post-mortem brains. METHODS: CT scans of seven post-mortem brains were scored for the presence and severity (mild, moderate, severe) of hippocampal calcification...
2018: PloS One
https://www.readbyqxmd.com/read/29748388/the-kinetochore-proteins-cenp-e-and-cenp-f-directly-and-specifically-interact-with-distinct-bub-mitotic-checkpoint-ser-thr-kinases
#17
Giuseppe Ciossani, Katharina Overlack, Arsen Petrovic, Pim J Huis In 't Veld, Carolin Koerner, Sabine Wohlgemuth, Stefano Maffini, Andrea Musacchio
The segregation of chromosomes during cell division relies on the function of the kinetochores, protein complexes that physically connect chromosomes with microtubules of the spindle. The metazoan proteins, centromere protein E (CENP-E) and CENP-F, are components of a fibrous layer of mitotic kinetochores named the corona. Several of their features suggest that CENP-E and CENP-F are paralogs: they are very large (comprising approximately 2700 and 3200 residues, respectively), contain abundant predicted coiled-coil structures, are C-terminally prenylated, and are endowed with microtubule-binding sites at their termini...
May 10, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29748316/common-and-rare-coding-genetic-variation-underlying-the-electrocardiographic-pr-interval
#18
Honghuang Lin, Jessica van Setten, Albert V Smith, Nathan A Bihlmeyer, Helen R Warren, Jennifer A Brody, Farid Radmanesh, Leanne Hall, Niels Grarup, Martina Müller-Nurasyid, Thibaud Boutin, Niek Verweij, Henry J Lin, Ruifang Li-Gao, Marten E van den Berg, Jonathan Marten, Stefan Weiss, Bram P Prins, Jeffrey Haessler, Leo-Pekka Lyytikäinen, Hao Mei, Tamara B Harris, Lenore J Launer, Man Li, Alvaro Alonso, Elsayed Z Soliman, John M Connell, Paul L Huang, Lu-Chen Weng, Heather S Jameson, William Hucker, Alan Hanley, Nathan R Tucker, Yii-Der Ida Chen, Joshua C Bis, Kenneth M Rice, Colleen M Sitlani, Jan A Kors, Zhijun Xie, Chengping Wen, Jared W Magnani, Christopher P Nelson, Jørgen K Kanters, Moritz F Sinner, Konstantin Strauch, Annette Peters, Melanie Waldenberger, Thomas Meitinger, Jette Bork-Jensen, Oluf Pedersen, Allan Linneberg, Igor Rudan, Rudolf A de Boer, Peter van der Meer, Jie Yao, Xiuqing Guo, Kent D Taylor, Nona Sotoodehnia, Jerome I Rotter, Dennis O Mook-Kanamori, Stella Trompet, Fernando Rivadeneira, André Uitterlinden, Mark Eijgelsheim, Sandosh Padmanabhan, Blair H Smith, Henry Völzke, Stephan B Felix, Georg Homuth, Uwe Völker, Massimo Mangino, Timothy D Spector, Michiel L Bots, Marco Perez, Mika Kähönen, Olli T Raitakari, Vilmundur Gudnason, Dan E Arking, Patricia B Munroe, Bruce M Psaty, Cornelia M van Duijn, Emelia J Benjamin, Jonathan Rosand, Nilesh J Samani, Torben Hansen, Stefan Kääb, Ozren Polasek, Pim van der Harst, Susan R Heckbert, J Wouter Jukema, Bruno H Stricker, Caroline Hayward, Marcus Dörr, Yalda Jamshidi, Folkert W Asselbergs, Charles Kooperberg, Terho Lehtimäki, James G Wilson, Patrick T Ellinor, Steven A Lubitz, Aaron Isaacs
BACKGROUND: Electrical conduction from the cardiac sinoatrial node to the ventricles is critical for normal heart function. Genome-wide association studies have identified more than a dozen common genetic loci that are associated with PR interval. However, it is unclear whether rare and low-frequency variants also contribute to PR interval heritability. METHODS: We performed large-scale meta-analyses of the PR interval that included 83 367 participants of European ancestry and 9436 of African ancestry...
May 2018: Circulation. Genomic and precision medicine
https://www.readbyqxmd.com/read/29746311/evaluating-mortality-risk-adjustment-among-children-receiving-extracorporeal-support-for-respiratory-failure
#19
Ryan P Barbaro, Philip S Boonstra, Kevin W Kuo, David T Selewski, David K Bailly, Cheryl L Stone, Chin Ying Chow, Gail M Annich, Frank W Moler, Matthew L Paden
This study evaluates whether three commonly used pediatric intensive care unit (PICU) severity of illness scores, pediatric risk of mortality score (PRISM) III, pediatric index of mortality (PIM) 2, and pediatric logistic organ dysfunction (PELOD), are the appropriate tools to discriminate mortality risk in children receiving extracorporeal membrane oxygenation (ECMO) support for respiratory failure. This study also evaluates the ability of the Pediatric Risk Estimate Score for Children Using Extracorporeal Respiratory Support (Ped-RESCUERS) to discriminate mortality risk in the same population, and whether Ped-RESCUERS' discrimination of mortality is improved by additional clinical and laboratory measures of renal, hepatic, neurologic, and hematologic dysfunction...
May 8, 2018: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29745343/indazoles-derivatives-promising-anti-tumor-agents
#20
Yichao Wan, Shengzhuo He, Wei Li, Zilong Tang
Currently, cancer continues being a dramatically increasing and serious threat to public health. Although many anti-tumor agents have been developed in recent years, the survival rate of patients is not satisfactory. The poor prognosis of cancer patients is closely related to the occurrence of drug resistance. Therefore, it is urgent to develop new anti-tumor agents to make up for the deficiency. Indazoles is an important class of heterocyclic compounds possessing a variety of biological activities, such as anti-tumor, anti-bacterial, anti-inflammatory, anti-depressant and anti-hypertensive...
May 9, 2018: Anti-cancer Agents in Medicinal Chemistry
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