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Michael Adams

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https://www.readbyqxmd.com/read/28811973/nk-cell-dysfunction-in-chronic-lymphocytic-leukemia-is-associated-with-loss-of-the-mature-cells-expressing-inhibitory-killer-cell-ig-like-receptors
#1
Alexander W MacFarlane, Mowafaq Jillab, Mitchell R Smith, R Katherine Alpaugh, Marion E Cole, Samuel Litwin, Michael M Millenson, Tahseen Al-Saleem, Adam D Cohen, Kerry S Campbell
A prospective analysis of natural killer (NK) cell phenotype and function was performed on fresh peripheral blood samples from untreated patients with B-cell chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL). Compared to healthy controls, CD56(dim) NK cells in CLL patients displayed reduced expression of the NKG2D activating receptor and increased CD27 expression, which indicates declines in mature cells. In addition, NK cells from CLL patients showed reduced degranulation responses toward transformed B cells alone or with rituximab and were more sensitive to activation-induced cell death...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28811738/predictors-of-retention-among-african-americans-in-a-randomized-controlled-trial-to-test-the-healthy-eating-and-active-living-in-the-spirit-heals-intervention
#2
Oluwole A Babatunde, Swann Arp Adams, Michael D Wirth, Jan M Eberth, Jameson Sofge, Seul Ki Choi, Brook E Harmon, Lisa Davis, Ruby Drayton, Thomas G Hurley, Heather M Brandt, Cheryl A Armstead, James R Hébert
INTRODUCTION: Retention of racial/ethnic minority groups into research trials is necessary to fully understand and address health disparities. This study was conducted to identify participants' characteristics associated with retention of African Americans (AAs) in a randomized controlled trial (RCT) of a behavioral intervention. METHODS: Using data from an RCT conducted from 2009 to 2012 among AAs, participant-level factors were examined for associations with retention between three measurement points (ie, baseline, 3-month, and 12-month)...
2017: Ethnicity & Disease
https://www.readbyqxmd.com/read/28811633/rapid-replacement-by-non-vaccine-pneumococcal-serotypes-may-mitigate-the-impact-of-the-pneumococcal-conjugate-vaccine-on-nasopharyngeal-bacterial-ecology
#3
Brenda Kwambana-Adams, Blake Hanson, Archibald Worwui, Schadrac Agbla, Ebenezer Foster-Nyarko, Fatima Ceesay, Chinelo Ebruke, Uzochukwu Egere, Yanjiao Zhou, Maze Ndukum, Erica Sodergren, Michael Barer, Richard Adegbola, George Weinstock, Martin Antonio
There is growing concern that interventions that alter microbial ecology can adversely affect health. We characterised the impact of the seven-valent pneumococcal conjugate vaccine (PCV7) on pneumococcal carriage and the bacterial component of the nasopharyngeal microbiome during infancy. Newborns were recruited into three groups as follows: Group1 (n = 33) was the control group and comprised infants who received PCV7 after 6 months and came from unvaccinated communities. Group 2 (n = 30) came from unvaccinated communities and Group 3 (n = 39) came from vaccinated communities...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28809681/a-prototype-therapy-system-for-transcutaneous-application-of-boiling-histotripsy
#4
Adam D Maxwell, Petr V Yuldashev, Wayne Kreider, Tatiana D Khokhlova, George R Schade, Timothy L Hall, Oleg A Sapozhnikov, Michael R Bailey, Vera A Khokhlova
Boiling histotripsy is a method of focused ultrasound surgery that noninvasively applies millisecond-length pulses with high-amplitude shock fronts to generate liquefied lesions in tissue. Such a technique requires unique outputs compared to a focused ultrasound thermal therapy apparatus, particularly to achieve high in situ pressure levels through intervening tissue. This article describes the design and characterization of a system capable of producing the necessary pressure to transcutaneously administer boiling histotripsy therapy through clinically relevant overlying tissue paths using pulses with duration up to 10 ms...
August 14, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28808132/defining-electron-bifurcation-in-the-electron-transferring-flavoprotein-family
#5
Amaya M Garcia Costas, Saroj Poudel, Anne-Frances Miller, Gerrit J Schut, Rhesa N Ledbetter, Kathryn R Fixen, Lance C Seefeldt, Michael W W Adams, Caroline S Harwood, Eric S Boyd, John W Peters
Electron bifurcation is the coupling of exergonic and endergonic redox reactions to simultaneously generate (or utilize) low and high potential electrons. It is the third recognized form of energy conservation in biology and has recently been described in select electron transferring flavoproteins (Etfs). Etfs are flavin-containing heterodimers best known for donating electrons derived from fatty acid and amino acid oxidation to an electron transfer respiratory chain via ETF quinone oxidoreductase. Canonical examples contain a flavin adenine dinucleotide (FAD) that is involved in electron transfer as well as a non-redox active adenosine monophosphate (AMP)...
August 14, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28807671/selective-inhibition-of-extra-synaptic-%C3%AE-5-gabaa-receptors-by-s44819-a-new-therapeutic-agent
#6
Lori-An Etherington, Balázs Mihalik, Adrienn Pálvölgyi, István Ling, Katalin Pallagi, Szabolcs Kertész, Péter Varga, Ben G Gunn, Adam R Brown, Matthew R Livesey, Olivia Monteiro, Delia Belelli, József Barkóczy, Michael Spedding, István Gacsályi, Ferenc A Antoni, Jeremy J Lambert
In the mammalian central nervous system (CNS) GABAA receptors (GABAARs) mediate neuronal inhibition and are important therapeutic targets. GABAARs are composed of 5 subunits, drawn from 19 proteins, underpinning expression of 20-30 GABAAR subtypes. In the CNS these isoforms are heterogeneously expressed and exhibit distinct physiological and pharmacological properties. We report the discovery of S44819, a novel tricyclic oxazolo-2,3-benzodiazepine-derivative, that selectively inhibits α5-subunit-containing GABAARs (α5-GABAARs)...
August 11, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28806532/the-impact-of-an-acute-oral-phosphate-load-on-endothelium-dependent-and-independent-brachial-artery-vasodilation-in-healthy-males
#7
Brendan M Levac, Michael A Adams, Kyra E Pyke
Serum phosphate levels are associated with cardiovascular morbidity and mortality in the general population and endothelial dysfunction may be mechanistically involved. The purpose of this study was to investigate the effects of acute phosphate supplementation on endothelial-dependent (Flow mediated dilation (FMD)) and -independent (Glyceryl trinitrate (GTN)) vasodilation in young, healthy males. 17 healthy male participants (23±3 years old) were exposed to an oral load of phosphate (PHOS; (liquid supplement containing 1200 mg of phosphorous) and placebo (PLAC) over two experimental days...
August 14, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28806372/exploring-rural-disparities-in-medical-diagnoses-among-veterans-with-transgender-related-diagnoses-utilizing-veterans-health-administration-care
#8
Leigh A Bukowski, John Blosnich, Jillian C Shipherd, Michael R Kauth, George R Brown, Adam J Gordon
OBJECTIVES: Research shows transgender individuals experience pronounced health disparities compared with their nontransgender peers. Yet, there remains insufficient research about health differences within transgender populations. This study seeks to fill this gap by exploring how current urban/rural status is associated with lifetime diagnosis of mood disorder, alcohol dependence disorder, illicit drug abuse disorder, tobacco use, posttraumatic stress disorder, human immunodeficiency virus, and suicidal ideation or attempt among veterans with transgender-related diagnoses...
September 2017: Medical Care
https://www.readbyqxmd.com/read/28806301/risk-adjustment-in-alpps-is-associated-with-a-dramatic-decrease-in-early-mortality-and-morbidity
#9
Michael Linecker, Bergthor Björnsson, Gregor A Stavrou, Karl J Oldhafer, Georg Lurje, Ulf Neumann, René Adam, Francois-René Pruvot, Stefan A Topp, Jun Li, Ivan Capobianco, Silvio Nadalin, Marcel Autran Machado, Sergey Voskanyan, Deniz Balci, Roberto Hernandez-Alejandro, Fernando A Alvarez, Eduardo De Santibañes, Ricardo Robles-Campos, Massimo Malagó, Michelle L de Oliveira, Mickael Lesurtel, Pierre-Alain Clavien, Henrik Petrowsky
OBJECTIVE: To longitudinally assess whether risk adjustment in Associating Liver Partition and Portal Vein Ligation for Staged Hepatectomy (ALPPS) occurred over time and is associated with postoperative outcome. BACKGROUND: ALPPS is a novel 2-stage hepatectomy enabling resection of extensive hepatic tumors. ALPPS has been criticized for its high mortality, which is reported beyond accepted standards in liver surgery. Therefore, adjustments in patient selection and technique have been performed but have not yet been studied over time in relation to outcome...
August 11, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28806050/linking-high-throughput-screens-to-identify-moas-and-novel-inhibitors-of-mycobacterium-tuberculosis-dihydrofolate-reductase
#10
John P Santa Maria, Yumi Park, Lihu Yang, Nicholas Murgolo, Michael D Altman, Paul Zuck, Greg Adam, Chad Chamberlin, Peter Saradjian, Peter Dandliker, Helena I M Boshoff, Clifton E Barry, Charles Garlisi, David B Olsen, Katherine Young, Meir Glick, Elliott Nickbarg, Peter S Kutchukian
Though phenotypic and target-based high-throughput screening approaches have been employed to discover new antibiotics, the identification of promising therapeutic candidates remains challenging. Each approach provides different information, and understanding their results can provide hypotheses for mechanism of action (MoA) and reveal actionable chemical matter. Here we describe a framework for identifying efficacy targets of bioactive compounds. High throughput biophysical profiling against a broad range of targets coupled with machine learning is employed to identify chemical features with predicted efficacy targets for a given phenotypic screen...
August 14, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28805829/lineage-specific-dynamic-and-pre-established-enhancer-promoter-contacts-cooperate-in-terminal-differentiation
#11
Adam J Rubin, Brook C Barajas, Mayra Furlan-Magaril, Vanessa Lopez-Pajares, Maxwell R Mumbach, Imani Howard, Daniel S Kim, Lisa D Boxer, Jonathan Cairns, Mikhail Spivakov, Steven W Wingett, Minyi Shi, Zhixin Zhao, William J Greenleaf, Anshul Kundaje, Michael Snyder, Howard Y Chang, Peter Fraser, Paul A Khavari
Chromosome conformation is an important feature of metazoan gene regulation; however, enhancer-promoter contact remodeling during cellular differentiation remains poorly understood. To address this, genome-wide promoter capture Hi-C (CHi-C) was performed during epidermal differentiation. Two classes of enhancer-promoter contacts associated with differentiation-induced genes were identified. The first class ('gained') increased in contact strength during differentiation in concert with enhancer acquisition of the H3K27ac activation mark...
August 14, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28805245/tropical-rainforest-carbon-sink-declines-during-el-ni%C3%A3-o-as-a-result-of-reduced-photosynthesis-and-increased-respiration-rates
#12
Molly A Cavaleri, Adam P Coble, Michael G Ryan, William L Bauerle, Henry W Loescher, Steven F Oberbauer
Changes in tropical forest carbon sink strength during El Niño Southern Oscillation (ENSO) events can indicate future behavior under climate change. Previous studies revealed ˜6 Mg C ha(-1)  yr(-1) lower net ecosystem production (NEP) during ENSO year 1998 compared with non-ENSO year 2000 in a Costa Rican tropical rainforest. We explored environmental drivers of this change and examined the contributions of ecosystem respiration (RE) and gross primary production (GPP) to this weakened carbon sink. For 1998-2000, we estimated RE using chamber-based respiration measurements, and we estimated GPP in two ways: using (1) the canopy process model MAESTRA, and (2) combined eddy covariance and chamber respiration data...
August 14, 2017: New Phytologist
https://www.readbyqxmd.com/read/28803334/surgical-approaches-to-adenocarcinoma-of-the-gastroesophageal-junction-the-siewert-ii-conundrum
#13
REVIEW
Andrew M Brown, Danica N Giugliano, Adam C Berger, Michael J Pucci, Francesco Palazzo
BACKGROUND: The Siewert classification system for gastroesophageal junction adenocarcinoma has provided morphological and topographical information to help guide surgical decision-making. Evidence has shown that Siewert I and III tumors are distinct entities with differing epidemiologic and histologic characteristics and distinct patterns of disease progression, requiring different treatment. Siewert II tumors share some of the characteristics of type I and III lesions, and the surgical approach is not universally agreed upon...
August 12, 2017: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/28801538/comparison-of-acute-thrombogenicity-for-metallic-and-polymeric-bioabsorbable-scaffolds-magmaris-versus-absorb-in-a-porcine-arteriovenous-shunt-model
#14
Ron Waksman, Michael J Lipinski, Eduardo Acampado, Qi Cheng, Lila Adams, Sho Torii, Jiaxiang Gai, Rebecca Torguson, David M Hellinga, Peter C Westman, Michael Joner, Philine Zumstein, Frank D Kolodgie, Renu Virmani
BACKGROUND: A comparison in acute thrombogenicity between the Magmaris sirolimus-eluting bioabsorbable magnesium scaffold and the Absorb bioresorbable vascular scaffold has not been performed. This study assessed acute thrombogenicity of Magmaris compared with Absorb and the Orsiro hybrid drug-eluting stent in a porcine arteriovenous shunt model. METHODS AND RESULTS: An ex vivo porcine carotid jugular arteriovenous shunt was established and connected to SYLGARD tubing containing the Magmaris, Absorb, and Orsiro scaffolds/stents and allowed to run in the shunt for a maximum of 1 hour...
August 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28799706/outcome-after-transcatheter-occlusion-of-patent-ductus-arteriosus-in-infants-less-than-6-kg-a-national-study-from-united-kingdom-and-ireland
#15
Sok-Leng Kang, Salim Jivanji, Chetan Mehta, Andrew J Tometzki, Graham Derrick, Robert Yates, Sachin Khambadkone, Joseph de Giovanni, Oliver Stumper, Rami Dhillon, Vinay Bhole, Zdenek Slavik, Michael Rigby, Patrick Noonan, Ben Smith, Brodie Knight, Trevor Richens, Neil Wilson, Kevin Walsh, Adam James, John Thomson, Jamie Bentham, Nicholas Hayes, Sajid Nazir, Satish Adwani, Arjamand Shauq, Ram Ramaraj, Christopher Duke, Demetris Taliotis, Vikram Kudumula, San-Fui Yong, Gareth Morgan, Eric Rosenthal, Thomas Krasemann, Shakeel Qureshi, David Crossland, Tony Hermuzi, Robin P Martin
OBJECTIVES: This study aimed to report our national experience with transcatheter patent ductus arteriosus (PDA) occlusion in infants weighing <6 kg. BACKGROUND: The technique of transcatheter PDA closure has evolved in the past two decades and is increasingly used in smaller patients but data on safety and efficacy are limited. METHODS: Patients weighing < 6 kg in whom transcatheter PDA occlusion was attempted in 13 tertiary paediatric cardiology units in the United Kingdom and Ireland were retrospectively analyzed to review the outcome and complications...
August 11, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28797429/early-procedural-and-health-status-outcomes-after-chronic-total-occlusion%C3%A2-angioplasty-a-report-from-the-open-cto-registry-outcomes-patient-health-status-and-efficiency-in-chronic-total-occlusion-hybrid-procedures
#16
James Sapontis, Adam C Salisbury, Robert W Yeh, David J Cohen, Taishi Hirai, William Lombardi, James M McCabe, Dimitri Karmpaliotis, Jeffrey Moses, William J Nicholson, Ashish Pershad, R Michael Wyman, Anthony Spaedy, Stephen Cook, Parag Doshi, Robert Federici, Craig R Thompson, Steven P Marso, Karen Nugent, Kensey Gosch, John A Spertus, J Aaron Grantham
OBJECTIVES: This study sought to accurately describe the success rate, risks, and patient-reported benefits of contemporary chronic total occlusion (CTO) percutaneous coronary intervention (PCI). BACKGROUND: In light of the evolving techniques to successfully revascularize CTO lesions, there remains a compelling need to more accurately quantify the success rates, risks, and benefits of these complex procedures. METHODS: Using a uniquely comprehensive, core-lab adjudicated, single-arm, multicenter registry of 1,000 consecutive patients undergoing CTO PCI by the hybrid approach, we evaluated the technical success rates, complication rates, and raw and adjusted health status benefits at 1 month among successfully as compared to unsuccessfully treated patients...
August 14, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28796505/toolbox-of-nonmetallocene-lanthanides-multifunctional-catalysts-in-group-transfer-polymerization
#17
Friederike Adams, Martin R Machat, Peter T Altenbuchner, Johannes Ehrmaier, Alexander Pöthig, Tolga N V Karsili, Bernhard Rieger
Herein, we present a fundamental study of isostructural 2-methoxyethylamino-bis(phenolate)-lanthanide complexes [(ONOO)(R)M(X)(THF)] (M = Lu, Y; R = (t)Bu, CMe2Ph, X = CH2TMS, collidine; THF = tetrahydrofuran; TMS = trimethylsilyl) for rare-earth metal-mediated group-transfer polymerization (GTP). This analysis includes the differentiation of electron-donating and nondonating vinyl monomers and two metal centers with regard to the ionic radius (yttrium and lutetium). In addition, highly nucleophilic alkyl initiators are compared with electron-donating heteroaromatic initiators...
August 10, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28795092/-data-characterizing-microfabricated-human-blood-vessels-created-via-hydrodynamic-focusing
#18
Kyle A DiVito, Michael A Daniele, Steven A Roberts, Frances S Ligler, André A Adams
This data article provides further detailed information related to our research article titled "Microfabricated Blood Vessels Undergo Neovascularization" (DiVito et al., 2017) [1], in which we report fabrication of human blood vessels using hydrodynamic focusing (HDF). Hydrodynamic focusing with advection inducing chevrons were used in concert to encase one fluid stream within another, shaping the inner core fluid into 'bullseye-like" cross-sections that were preserved through click photochemistry producing streams of cellularized hollow 3-dimensional assemblies, such as human blood vessels (Daniele et al...
October 2017: Data in Brief
https://www.readbyqxmd.com/read/28794497/the-trophic-role-of-a-large-marine-predator-the-tiger-shark-galeocerdo-cuvier
#19
Luciana C Ferreira, Michele Thums, Michael R Heithaus, Adam Barnett, Kátya G Abrantes, Bonnie J Holmes, Lara M Zamora, Ashley J Frisch, Julian G Pepperell, Derek Burkholder, Jeremy Vaudo, Robert Nowicki, Jessica Meeuwig, Mark G Meekan
Tiger sharks were sampled off the western (Ningaloo Reef, Shark Bay) and eastern (the Great Barrier Reef; GBR, Queensland and New South Wales; NSW) coastlines of Australia. Multiple tissues were collected from each shark to investigate the effects of location, size and sex of sharks on δ(13)C and δ(15)N stable isotopes among these locations. Isotopic composition of sharks sampled in reef and seagrass habitats (Shark Bay, GBR) reflected seagrass-based food-webs, whereas at Ningaloo Reef analysis revealed a dietary transition between pelagic and seagrass food-webs...
August 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28793997/effect-of-intensive-versus-standard-blood-pressure-treatment-according-to-baseline-prediabetes-status-a-post-hoc-analysis-of-a-randomized-trial
#20
Adam P Bress, Jordan B King, Kathryn E Kreider, Srinivasan Beddhu, Debra L Simmons, Alfred K Cheung, Yingying Zhang, Michael Doumas, John Nord, Mary Ellen Sweeney, Addison A Taylor, Charles Herring, William J Kostis, James Powell, Anjay Rastogi, Christianne L Roumie, Alan Wiggers, Jonathan S Williams, Reem Yunis, Athena Zias, Greg W Evans, Tom Greene, Michael V Rocco, William C Cushman, David M Reboussin, Mark N Feinglos, Vasilios Papademetriou
OBJECTIVE: To determine whether the effects of intensive (<120 mmHg) compared with standard (<140 mmHg) systolic blood pressure (SBP) treatment are different among those with prediabetes versus those with fasting normoglycemia at baseline in the Systolic Blood Pressure Intervention Trial (SPRINT). RESEARCH DESIGN AND METHODS: This was a post hoc analysis of SPRINT. SPRINT participants were categorized by prediabetes status, defined as baseline fasting serum glucose ≥100 mg/dL versus those with normoglycemia (fasting serum glucose <100 mg/dL)...
August 9, 2017: Diabetes Care
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