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Alan Brown

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https://www.readbyqxmd.com/read/28636705/inflammation-in-the-neurocircuitry-of-obsessive-compulsive-disorder
#1
Sophia Attwells, Elaine Setiawan, Alan A Wilson, Pablo M Rusjan, Romina Mizrahi, Laura Miler, Cynthia Xu, Margaret Anne Richter, Alan Kahn, Stephen J Kish, Sylvain Houle, Lakshmi Ravindran, Jeffrey H Meyer
Importance: For a small percentage of obsessive-compulsive disorder (OCD) cases exhibiting additional neuropsychiatric symptoms, it was proposed that neuroinflammation occurs in the basal ganglia as an autoimmune response to infections. However, it is possible that elevated neuroinflammation, inducible by a diverse range of mechanisms, is important throughout the cortico-striato-thalamo-cortical circuit of OCD. Identifying brain inflammation is possible with the recent advance in positron emission tomography (PET) radioligands that bind to the translocator protein (TSPO)...
June 21, 2017: JAMA Psychiatry
https://www.readbyqxmd.com/read/28631889/microrna-containing-extracellular-vesicles-released-from-endothelial-colony-forming-cells-modulate-angiogenesis-during-ischaemic-retinopathy
#2
Margaret Dellett, Eoin D Brown, Jasenka Guduric-Fuchs, Anna O'Connor, Alan W Stitt, Reinhold J Medina, David A Simpson
Endothelial colony-forming cells (ECFCs) are a defined subtype of endothelial progenitors that modulate vascular repair and promote perfusion in ischaemic tissues. Their paracrine activity on resident vasculature is ill-defined, but mediated, at least in part, by the transfer of extracellular vesicles (EVs). To evaluate the potential of isolated EVs to provide an alternative to cell-based therapies, we first performed a physical and molecular characterization of those released by ECFCs. Their effects upon endothelial cells in vitro and angiogenesis in vivo in a model of proliferative retinopathy were assessed...
June 20, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28628793/the-reliability-concurrent-validity-and-association-with-salivary-oxytocin-of-the-self-report-version-of-the-inventory-of-callous-unemotional-traits-in-adolescents-with-conduct-disorder
#3
Tomer Levy, Alan Apter, Amir Djalovski, Miriam Peskin, Silvana Fennig, Galia Gat-Yablonski, Meytal Bar-Maisels, Katy Borodkin, Yuval Bloch
The present study evaluated the self-report version of the Inventory of Callous-Unemotional Traits (ICU-SR) in terms of reliability, concurrent validity, and correlation with salivary oxytocin levels, a potential biomarker of CU traits. 67 socially at-risk male adolescents (mean 16.2 years) completed the ICU-SR, ICU teacher-version (ICU-TR), Strengths and Difficulties Questionnaire, and their medical files were coded for previous antisocial acts using Brown-Goodwin Lifetime Aggression Scale. Salivary samples were assayed for oxytocin...
June 12, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28605603/efficacy-and-safety-of-degludec-versus-glargine-in-type-2-diabetes
#4
Steven P Marso, Darren K McGuire, Bernard Zinman, Neil R Poulter, Scott S Emerson, Thomas R Pieber, Richard E Pratley, Poul-Martin Haahr, Martin Lange, Kirstine Brown-Frandsen, Alan Moses, Simon Skibsted, Kajsa Kvist, John B Buse
Background Degludec is an ultralong-acting, once-daily basal insulin that is approved for use in adults, adolescents, and children with diabetes. Previous open-label studies have shown lower day-to-day variability in the glucose-lowering effect and lower rates of hypoglycemia among patients who received degludec than among those who received basal insulin glargine. However, data are lacking on the cardiovascular safety of degludec. Methods We randomly assigned 7637 patients with type 2 diabetes to receive either insulin degludec (3818 patients) or insulin glargine U100 (3819 patients) once daily between dinner and bedtime in a double-blind, treat-to-target, event-driven cardiovascular outcomes trial...
June 12, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28592157/correlation-between-nasal-epithelial-injury-and-in-vitro-cytotoxicity-using-a-series-of-small-molecule-protein-tyrosine-phosphatase-1b-inhibitors-investigated-for-reversal-of-leptin-resistance-in-obesity
#5
Alan P Brown, Chandrassegar Saravanan, Patrick Devine, Maria Magnifico, Jiaping Gao, Valerie Beaulieu, Fupeng Ma, Kayo Yasoshima, David Barnes-Seeman, Ken Yamada
This research provides a cautionary example when evaluating changes in behavioral end points with respect to postulated pharmacologic activity. Various small molecule substrate mimetic protein tyrosine phosphatase 1B (PTP1B) inhibitors were investigated as pharmacologic agents for decreasing food consumption using intranasal (IN) dosing as a means for direct nose-to-brain delivery along the olfactory/trigeminal nerve pathways. Although food consumption was decreased in diet-induced obese (DIO) mice, nasal discharge was observed...
January 1, 2017: International Journal of Toxicology
https://www.readbyqxmd.com/read/28589342/streptomyces-asenjonii-sp-nov-isolated-from-hyper-arid-atacama-desert-soils-and-emended-description-of-streptomyces-viridosporus-pridham-et-al-1958
#6
Michael Goodfellow, Kanungnid Busarakam, Hamidah Idris, David P Labeda, Imen Nouioui, Roselyn Brown, Byung-Yong Kim, Maria Del Carmen Montero-Calasanz, Barbara A Andrews, Alan T Bull
A polyphasic study was undertaken to establish the taxonomic status of Streptomyces strains isolated from hyper-arid Atacama Desert soils. Analysis of the 16S rRNA gene sequences of the isolates showed that they formed a well-defined lineage that was loosely associated with the type strains of several Streptomyces species. Multi-locus sequence analysis based on five housekeeping gene alleles showed that the strains form a homogeneous taxon that is closely related to the type strains of Streptomyces ghanaensis and Streptomyces viridosporus...
June 6, 2017: Antonie Van Leeuwenhoek
https://www.readbyqxmd.com/read/28586090/the-association-of-qrs-duration-with-atrial-fibrillation-in-a-heart-failure-with-preserved-ejection-fraction-population-a-pilot-study
#7
Joseph N Gigliotti, Mandeep S Sidhu, Alina M Robert, Jonathan S Zipursky, Jeremiah R Brown, Salvatore P Costa, Robert T Palac, David A Steckman, David J Malenka, Alan T Kono, Mark L Greenberg
BACKGROUND: Heart failure is a significant cause of morbidity and mortality, yet patient risk stratification may be difficult. Prevention or treatment of atrial fibrillation (AF) may be an important strategy in these patients that could positively affect their outcome. It has been demonstrated that in patients with systolic dysfunction, prolonged QRS duration (QRSd), an easily measured electrocardiographic parameter, is associated with AF. HYPOTHESIS: Prolonged QRSd is associated with an increase in prevalence of AF in patients with heart failure with preserved ejection fraction(HFPEF)...
June 6, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28583826/risk-stratification-for-covert-invasive-cancer-among-patients-referred-for-colonic-endoscopic-mucosal-resection-a-large-multi-center-cohort
#8
Nicholas G Burgess, Luke F Hourigan, Simon A Zanati, Gregor J Brown, Rajvinder Singh, Stephen J Williams, Spiro C Raftopoulos, Donald Ormonde, Alan Moss, Karen Byth, Hema Mahajan, Duncan McLeod, Michael J Bourke
BACKGROUND & AIMS: Among patients with large colorectal sessile polyps or laterally spreading lesions, it is important to identify those at risk for submucosal invasive cancer (SMIC). Lesions with overt endoscopic evidence of SMIC are referred for surgery, although those without these features might still contain SMIC that is not visible on endoscopic inspection (covert SMIC). Lesions with a high covert SMIC risk might be better suited for endoscopic submucosal dissection (ESD) than for endoscopic mucosal resection (EMR)...
June 2, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28580213/a-fatal-case-of-herpes-simplex-virus-hepatitis-in-a-pregnant-patient
#9
Maen Masadeh, Huafeng Shen, Yejin Lee, Alan Gunderson, Kyle Brown, Andrew Bellizzi, Tomohiro Tanaka
We present a middle aged pregnant woman who developed signs and symptoms of acute liver failure and was found to have herpes simplex virus hepatitis. Patient had an emergent delivery and was started on antiviral therapy, but unfortunately due to the severity of her liver failure, she passed away. The importance of reporting this case is to emphasize on the importance of considering herpes simplex infection in pregnant women who present with acute liver failure, and the importance of early administration of antiviral therapy...
May 2017: Intractable & Rare Diseases Research
https://www.readbyqxmd.com/read/28550069/incidence-and-prevalence-of-nmosd-in-australia-and-new-zealand
#10
Wajih Bukhari, Kerri M Prain, Patrick Waters, Mark Woodhall, Cullen M O'Gorman, Laura Clarke, Roger A Silvestrini, Christine S Bundell, David Abernethy, Sandeep Bhuta, Stefan Blum, Mike Boggild, Karyn Boundy, Bruce J Brew, Matthew Brown, Wallace J Brownlee, Helmut Butzkueven, William M Carroll, Celia Chen, Alan Coulthard, Russell C Dale, Chandi Das, Keith Dear, Marzena J Fabis-Pedrini, David Fulcher, David Gillis, Simon Hawke, Robert Heard, Andrew P D Henderson, Saman Heshmat, Suzanne Hodgkinson, Sofia Jimenez-Sanchez, Trevor Killpatrick, John King, Christopher Kneebone, Andrew J Kornberg, Jeannette Lechner-Scott, Ming-Wei Lin, Christpher Lynch, Richard Macdonell, Deborah F Mason, Pamela A McCombe, Michael P Pender, Jennifer A Pereira, John D Pollard, Stephen W Reddel, Cameron Shaw, Judith Spies, James Stankovich, Ian Sutton, Steve Vucic, Michael Walsh, Richard C Wong, Eppie M Yiu, Michael H Barnett, Allan G Kermode, Mark P Marriott, John D E Parratt, Mark Slee, Bruce V Taylor, Ernest Willoughby, Robert J Wilson, Angela Vincent, Simon A Broadley
OBJECTIVES: We have undertaken a clinic-based survey of neuromyelitis optica spectrum disorders (NMOSDs) in Australia and New Zealand to establish incidence and prevalence across the region and in populations of differing ancestry. BACKGROUND: NMOSD is a recently defined demyelinating disease of the central nervous system (CNS). The incidence and prevalence of NMOSD in Australia and New Zealand has not been established. METHODS: Centres managing patients with demyelinating disease of the CNS across Australia and New Zealand reported patients with clinical and laboratory features that were suspicious for NMOSD...
May 26, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28540055/case-report-of-novel-cacna1a-gene-mutation-causing-episodic-ataxia-type-2
#11
David Alan Isaacs, Michael J Bradshaw, Kelly Brown, Peter Hedera
BACKGROUND: Episodic ataxia type 2 (OMIM 108500) is an autosomal dominant channelopathy characterized by paroxysms of ataxia, vertigo, nausea, and other neurologic symptoms. More than 50 mutations of the CACNA1A gene have been discovered in families with episodic ataxia type 2, although 30%-50% of all patients with typical episodic ataxia type 2 phenotype have no detectable mutation of the CACNA1A gene. CASE: A 46-year-old Caucasian man, with a long history of bouts of imbalance, vertigo, and nausea, presented to our hospital with 2 weeks of ataxia and headache...
2017: SAGE open medical case reports
https://www.readbyqxmd.com/read/28539002/from-in-vivo-to-in-vitro-the-medical-device-testing-paradigm-shift
#12
Dayna Kerecman Myers, Alan M Goldberg, Albrecht Poth, Michael F Wolf, Joseph Carraway, James McKim, Kelly P Coleman, Richard Hutchinson, Ronald Brown, Harald F Krug, Anthony Bahinski, Thomas Hartung
Amid growing efforts to advance the replacement, reduction, and refinement of the use of animals in research, there is a growing recognition that in vitro testing of medical devices can be more effective, both in terms of cost and time, and also more reliable than in vivo testing. Although the technological landscape has evolved rapidly in support of these concepts, regulatory acceptance of alternative testing methods has not kept pace. Despite the acceptance by regulators of some in vitro tests (cytotoxicity, gene toxicity, and some hemocompatibility assays), many toxicity tests still rely on animals (irritation, sensitization, acute toxicity, reproductive/developmental toxicity), even where other industrial sectors have already abandoned them...
May 25, 2017: ALTEX
https://www.readbyqxmd.com/read/28532784/update-on-the-use-of-pcsk9-inhibitors-in-adults-recommendations-from-an-expert-panel-of-the-national-lipid-association
#13
Carl E Orringer, Terry A Jacobson, Joseph J Saseen, Alan S Brown, Antonio M Gotto, Joyce L Ross, James A Underberg
An Expert Panel convened by the National Lipid Association was charged with updating the recommendations on the use of proprotein convertase subtilisin/kexin type 9 (PCSK9) antibody therapy that were provided by the 2015 National Lipid Association Recommendations for the Patient-Centered Management of Dyslipidemia: Part 2. Recent studies have demonstrated the efficacy of these agents in reducing low-density lipoprotein cholesterol and non-high-density lipoprotein cholesterol and have confirmed their excellent safety profile...
May 19, 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/28530503/comparison-of-self-selected-walking-speeds-and-walking-speed-variability-when-data-are-collected-during-repeated-discrete-trials-and-during-continuous-walking
#14
Marcus J Brown, Laura A Hutchinson, Michael J Rainbow, Kevin J Deluzio, Alan R De Asha
A typical gait analysis data collection consists of a series of discrete trials, where a participant initiates gait, walks through a motion capture volume, and then terminates gait. This is not a normal 'everyday' gait pattern, yet measurements are considered representative of normal walking. However, walking speed, a global descriptor of gait quality that can affect joint kinematics and kinetics, may be different during discrete trials, compared to continuous walking. Therefore, the purpose of this study was to investigate the effect of continuous walking versus discrete trials on walking speed and walking speed variability...
May 22, 2017: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/28521661/from-the-editors-brief-synopsis
#15
E Sherwood Brown, Alan I Green
No abstract text is available yet for this article.
May 19, 2017: Journal of Dual Diagnosis
https://www.readbyqxmd.com/read/28510487/origin-of-the-ttc-values-for-compounds-that-are-genotoxic-and-or-carcinogenic-and-an-approach-for-their-re-evaluation
#16
Alan Boobis, Paul Brown, Mark Timothy David Cronin, James Edwards, Corrado Lodovico Galli, Jay Goodman, Abigail Jacobs, David Kirkland, Mirjam Luijten, Cyril Marsaux, Matthew Martin, Chihae Yang, Heli Miriam Hollnagel
The threshold of toxicological concern (TTC) approach is a resource-effective de minimis method for the safety assessment of chemicals, based on distributional analysis of the results of a large number of toxicological studies. It is being increasingly used to screen and prioritize substances with low exposure for which there is little or no toxicological information. The first step in the approach is the identification of substances that may be DNA-reactive mutagens, to which the lowest TTC value is applied...
May 16, 2017: Critical Reviews in Toxicology
https://www.readbyqxmd.com/read/28503768/the-contribution-of-cardio-metabolic-risk-factors-to-estimated-glomerular-filtration-rate-egfr-decline-in-indigenous-australians-with-and-without-albuminuria-the-egfr-follow-up-study
#17
Elizabeth Barr, Federica Barzi, Jaquelyne T Hughes, George Jerums, Kerin O'Dea, Alex Brown, Elif I Ekinci, Graham Rd Jones, Paul D Lawton, Ashim Sinha, Richard J MacIsaac, Alan Cass, Louise J Maple-Brown
BACKGROUND: Risk factors for estimated glomerular filtration rate (eGFR) decline beyond albuminuria are not fully understood in Indigenous Australians who have a 6-fold risk of end-stage kidney disease. We assessed associations between cardio-metabolic risk factors and eGFR decline according to baseline albuminuria status to identify potential treatment targets. METHODS: The eGFR Follow-up study is a longitudinal cohort of 520 Indigenous Australians. Linear mixed regression was used to estimate associations between baseline cardio-metabolic risk factors and annual Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) eGFR change (ml/min/1...
May 14, 2017: Nephrology
https://www.readbyqxmd.com/read/28502512/metreleptin-therapy-lowers-plasma-angiopoietin-like-protein-3-in-patients-with-generalized-lipodystrophy
#18
Ranganath Muniyappa, Brent S Abel, Asha Asthana, Mary F Walter, Elaine K Cochran, Alan T Remaley, Monica C Skarulis, Phillip Gorden, Rebecca J Brown
BACKGROUND: Reduced triglyceride clearance due to impaired lipoprotein lipase-mediated lipolysis contributes to severe hypertriglyceridemia in lipodystrophy. Angiopoietin-like protein 3 (ANGPTL3) and 4 (ANGPTL4) impair clearance of triglycerides by inhibiting lipoprotein lipase. Whether circulating ANGPTL3/4 levels are altered in lipodystrophy and the effects of leptin replacement on these ANGPTLs are unknown. OBJECTIVE: To examine if ANGPTL3/4 levels are elevated in patients with generalized lipodystrophy and assess the effects of leptin replacement on these ANGPTLs...
March 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/28502236/family-presence-in-the-adult-icu-during-bedside-procedures
#19
Marnie Jakab, Alex Z Day, Alan Kraguljac, Maedean Brown, Sangeeta Mehta
PURPOSE: To understand perspectives of family members of adult patients admitted to the medical-surgical intensive care unit (ICU) regarding their presence during procedures. METHODS: Respondents completed a questionnaire about procedures the patient had undergone, their desire to be present, and their experience. Procedures of interest were endotracheal intubation; chest compressions; vascular catheter insertion; and gastric, chest, and rectal tubes. Impact of Events Scale-Revised (IES-R) was completed at the time of questionnaire completion and again 1 month later to evaluate the psychological impact of witnessing a procedure...
January 1, 2017: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/28498310/selective-expression-of-flt3-within-the-mouse-hematopoietic-stem-cell-compartment
#20
Ciaran James Mooney, Alan Cunningham, Panagiotis Tsapogas, Kai-Michael Toellner, Geoffrey Brown
The fms-like tyrosine kinase 3 (Flt3) is a cell surface receptor that is expressed by various hematopoietic progenitor cells (HPC) and Flt3-activating mutations are commonly present in acute myeloid and lymphoid leukemias. These findings underscore the importance of Flt3 to steady-state and malignant hematopoiesis. In this study, the expression of Flt3 protein and Flt3 mRNA by single cells within the hematopoietic stem cell (HSC) and HPC bone marrow compartments of C57/BL6 mice was investigated using flow cytometry and the quantitative reverse transcription polymerase chain reaction...
May 12, 2017: International Journal of Molecular Sciences
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