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https://www.readbyqxmd.com/read/28933448/researchers-unite-in-quest-for-standard-model-of-the-brain
#1
Alison Abbott
No abstract text is available yet for this article.
September 19, 2017: Nature
https://www.readbyqxmd.com/read/28930706/giving-voice-to-the-voiceless-the-colorado-response-to-unrepresented-patients
#2
Deb Bennett-Woods, Jean Abbott, Jacqueline J Glover
Medical decision making on behalf of unrepresented patients is one of the most challenging ethical issues faced in clinical practice. The legal environment surrounding these patients is equally complex. This article describes the efforts of a small coalition of interested healthcare professionals to address the issue in Colorado. A brief history of the effort is presented, along with discussion of the legal, ethical, practical, and political dimensions that arose in Colorado's effort to address decision making for unrepresented patients through an extension of the existing Colorado Medical Treatment Decision Act (CRS 15-18)...
2017: Journal of Clinical Ethics
https://www.readbyqxmd.com/read/28926183/abstracts
#3
Ira Kantrowitz-Gordon, Shannon Abbott, Rachel Hoehn
No abstract text is available yet for this article.
September 19, 2017: Journal of Midwifery & Women's Health
https://www.readbyqxmd.com/read/28926129/evaluation-of-the-new-restandardized-abbott-architect-25-oh-vitamin-d-assay-in-vitamin-d-insufficient-and-vitamin-d-supplemented-individuals
#4
Wijtske Annema, Albina Nowak, Arnold von Eckardstein, Lanja Saleh
BACKGROUND: Recently, Abbott Diagnostics has restandardized the Architect 25(OH)D assay against the NIST SRM 2972. We have evaluated the analytical and clinical performance of the restandardized Architect 25(OH)D assay and compared its performance with a NIST-traceable liquid chromatography-tandem mass spectrometry (LC-MS/MS) method and the Roche total 25(OH)D assay in vitamin D-insufficient individuals before and after vitamin D3 supplementation. METHODS: Frozen serum samples were obtained from 88 healthy subjects with self-perceived fatigue and vitamin D-insufficiency <50 nmol L(-1) who were randomized to receive a single 100 000 IU dose of vitamin D3 (n = 48) or placebo (n = 40)...
September 19, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28926059/br%C3%A3-nsted-acidity-in-deep-eutectic-solvents-and-ionic-liquids
#5
Andrew P Abbott, Sahar S M Alabdullah, Azhar Y M Al-Murshedi, Karl S Ryder
Despite the importance of ionic liquids in a variety of fields, little is understood about the behaviour of protons in these media. The main difficulty arises due to the unknown activity of protons in non-aqueous solvents. This study presents acid dissociation constants for nine organic acids in deep eutectic solvents (DESs) using standard pH indicator solutes. The pKIn value for bromophenol blue was found by titrating the DES with triflic acid. The experimental method was developed to understand the acid-base properties of deep eutectic solvents, and through this study it was found that the organic acids studied were slightly less dissociated in the DES than in water with pKa values between 0...
September 19, 2017: Faraday Discussions
https://www.readbyqxmd.com/read/28923290/use-of-adult-sensory-panel-to-study-individual-differences-in-the-palatability-of-a-pediatric-hiv-treatment-drug
#6
Julie A Mennella, Phoebe S Mathew, Elizabeth D Lowenthal
PURPOSE: The recommended first-line treatment for young children infected with HIV includes the liquid formulation of the co-formulated protease inhibitors lopinavir/ritonavir (Kaletra(®) [Abbott Laboratories, Chicago, Illinois]). Clinical reports indicate that some children readily accept the taste of Kaletra, whereas others strongly reject it, which can deter therapeutic adherence and outcomes. METHODS: As a proof-of-concept approach, a sensory panel of genotyped adults was used to document the range of individual differences in the taste and palatability (hedonics) of the liquid formulation of Kaletra and other taste stimuli, including common excipients...
September 15, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28922407/segmental-arterial-stiffness-in-relation-to-b-type-natriuretic-peptide-with-preserved-systolic-heart-function
#7
Chih-Hsuan Yen, Chung-Lieh Hung, Ping-Ying Lee, Jui-Peng Tsai, Yau-Huei Lai, Cheng-Huang Su, Hung-I Yeh, Charles Jia-Yin Hou, Kuo-Liong Chien
BACKGROUND: Central arterial stiffness has been shown to play a key role in cardiovascular disease. However, evidence regarding such arterial stiffness from various arterial segments in relation to B-type natriuretic peptide (BNP) remains elusive. METHODS: A total of 1255 participants (47.8% men; mean age: 62.6 ± 12.3 [SD] years) with preserved left ventricular function (ejection fraction ≥50%) and ≥1 risk factors were consecutively studied. Arterial pulse wave velocity (PWV) by automatic device (VP-2000; Omron Healthcare) for heart-femoral (hf-PWV), brachial-ankle (ba-PWV), and heart-carotid (hc-PWV) segments were obtained and related to BNP concentrations (Abbott Diagnostics, Abbott Park, IL, USA)...
2017: PloS One
https://www.readbyqxmd.com/read/28920468/annals-express-macrocomplexes-and-discordant-high-sensitivity-cardiac-troponin-concentrations
#8
Pete Kavsak, Chantele Roy, Paul Malinowski, Ching-Tong Mark, Terry Scott, Lorna Clark, Shana Lamers, Craig Ainsworth
BACKGROUND: Analytical comparisons between different high-sensitivity cardiac troponin (hs-cTn) assays are important for reassurance of results performed with different methodologies and to identify potential interferences or confounders to result interpretation. Our objective in the present study was to compare Beckman Coulter's latest hs-cTnI assay to Abbott's hs-cTnI assay and to assess agreement between results. METHODS: Two hundred EDTA plasma samples that had clinically reported hs-cTnI results from the Abbott ARCHITECTi2000 that spanned the analytical range were stored (median=4h), re-centrifuged and retested for hs-cTnI on the Abbott ARCHITECTi1000 and Beckman Coulter Access2 analyzers...
January 1, 2017: Annals of Clinical Biochemistry
https://www.readbyqxmd.com/read/28919864/%C3%AE-subunits-control-the-effects-of-human-kv4-3-potassium-channel-phosphorylation
#9
Geoffrey W Abbott
The transient outward K(+) current, Ito, activates early in the cardiac myocyte action potential, to begin repolarization. Human Ito is generated primarily by two Kv4.3 potassium channel α subunit splice variants (Kv4.3L and Kv4.3S) that diverge only by a C-terminal, membrane-proximal, 19-residue stretch unique to Kv4.3L. Protein kinase C (PKC) phosphorylation of threonine 504 within the Kv4.3L-specific 19-residues mediates α-adrenergic inhibition of Ito in human heart. Kv4.3 is regulated in human heart by various β subunits, including cytosolic KChIP2b and transmembrane KCNEs, yet their impact on the functional effects of human Kv4...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28919226/validation-of-hav-biomarker-2a-for-differential-diagnostic-of-hepatitis-a-infected-and-vaccinated-individuals-using-multiplex-serology
#10
Katrin Bohm, Angela Filomena, Nicole Schneiderhan-Marra, Gérard Krause, Claudia Sievers
BACKGROUND: Worldwide about 1.5 million clinical cases of hepatitis A virus (HAV) infections occur every year and increasingly countries are introducing HAV vaccination into the childhood immunization schedule with a single dose instead of the originally licenced two dose regimen. Diagnosis of acute HAV infection is determined serologically by anti-HAV-IgM detection using ELISA. Additionally anti-HAV-IgG can become positive during the early phase of symptoms, but remains detectable after infection and also after vaccination against HAV...
September 14, 2017: Vaccine
https://www.readbyqxmd.com/read/28918876/evaluation-of-potential-substrates-for-restenosis-and-thrombosis-in-overlapped-versus-edge-to-edge-juxtaposed-bioabsorbable-scaffolds-insights-from-a-computed-fluid-dynamic-study
#11
Gianluca Rigatelli, Marco Zuin, Fabio Dell'Avvocata, Paolo Cardaioli, Dobrin Vassiliev, Miroslaw Ferenc, Nguyen Tuan Nghia, Thach Nguyen, Nicholas Foin
BACKGROUND/PURPOSE: Multiple BRSs and specifically the Absorb scaffold (BVS) (Abbott Vascular, Santa Clara, CA USA) have been often used to treat long diffuse coronary artery lesions. We evaluate by a computational fluid dynamic(CFD) study the impact on the intravascular fluid rheology on multiple bioabsorbable scaffolds (BRS) by standard overlapping versus edge-to-edge technique. METHODS/MATERIALS: We simulated the treatment of a real long significant coronary lesion (>70% luminal narrowing) involving the left anterior descending artery (LAD) treated with a standard or edge-to-edge technique, respectively...
August 17, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28918848/a-multi-institutional-analysis-of-intraoperative-radiotherapy-for-early-breast-cancer-does-age-matter
#12
A M Abbott, S A Valente, L Loftus, R D Tendulkar, J M Greif, K P Bethke, E D Donnelly, C Lottich, D L Ross, N B Friedman, C G Bedi, J E Joh, P Kelemen, R A Hoefer, S K Kang, J Ruffer, A Police, A Fyles, G M Graves, S C Willey, E A Tousimis, W Small, J Lyons, S Grobmyer, C Laronga
BACKGROUND: Single-session intraoperative radiation therapy (IORT) minimizes treatment demands associated with traditional whole breast radiation therapy (WBRT) but outcomes on local disease control and morbidity among the elderly is limited. METHODS: A multi-institutional retrospective registry was established from 19 centers utilizing IORT from 2007 to 2013. Patient, tumor, and treatment variables were analyzed for ages <70 and ≥70. RESULTS: We evaluated 686 patients (<70 = 424; ≥70 = 262) who were margin and lymph node negative...
October 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28918132/assessing-precision-bias-and-sigma-metrics-of-53-measurands-of-the-alinity-ci-system
#13
Sten Westgard, Victoria Petrides, Sharon Schneider, Marvin Berman, Jörg Herzogenrath, Anthony Orzechowski
Assay performance is dependent on the accuracy and precision of a given method. These attributes can be combined into an analytical Sigma-metric, providing a simple value for laboratorians to use in evaluating a test method's capability to meet its analytical quality requirements. Sigma-metrics were determined for 37 clinical chemistry assays, 13 immunoassays, and 3 ICT methods on the Alinity ci system. METHODS: Analytical Performance Specifications were defined for the assays, following a rationale of using CLIA goals first, then Ricos Desirable goals when CLIA did not regular the method, and then other sources if the Ricos Desirable goal was unrealistic...
September 13, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28914704/rectoneovaginal-fistula-in-a-transgender-woman-successfully-repaired-using-a-buccal-mucosa-graft
#14
Molly Abbott Elmer-DeWitt, Hadley M Wood, Tracy Hull, Cecile A Unger
BACKGROUND: Rectoneovaginal fistulae (RnVFs) are abnormal connections between the rectum and a surgically created neovagina. Although very uncommon, they confer significant morbidity in patients and may require a multidisciplinary team approach to the repair. Risk factors for RnVF include rectal injury at the time of neovaginoplasty, malignancy in the neovagina, trauma (iatrogenic or otherwise), radiation, and neovaginal revision surgery. CASE DESCRIPTION: The patient is a 64-year-old transgender woman with recurrent RnVF following penile skin inversion neovaginoplasty, which was complicated by an intraoperative rectal injury...
September 13, 2017: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/28914669/infection-staging-and-incidence-surveillance-applications-of-high-dynamic-range-diagnostic-immuno-assay-platforms
#15
Eduard Grebe, Alex Welte, Jake Hall, Sheila M Keating, Shelley N Facente, Kara Marson, Jeffrey N Martin, Susan J Little, Matthew A Price, Esper G Kallas, Michael P Busch, Christopher D Pilcher, Gary Murphy
BACKGROUND: Custom HIV staging assays, including the Sedia™ HIV-1 Limiting Antigen Avidity EIA (LAg) and avidity modifications of the Ortho VITROS® anti-HIV-1+2 and Abbott ARCHITECT HIV Ag/Ab Combo assays, are used to identify 'recent' infections in clinical settings and for cross-sectional HIV incidence estimation. However, the high dynamic range of chemiluminescent platforms allows differentiating recent and longstanding infection on signal intensity, and this raises the prospect of using unmodified diagnostic assays for infection timing and surveillance applications...
September 7, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28913627/everolimus-eluting-bioresorbable-vascular-scaffold-in-daily-clinical-practice-a%C3%A2-single-centre-experience
#16
W S Remkes, R S Hermanides, M W Kennedy, E Fabris, E Kaplan, J P Ottervanger, A W J van 't Hof, E Kedhi
BACKGROUND: Recent evidence has raised concerns regarding the safety of the everolimus-eluting bioresorbable vascular scaffold (E-BVS) (Absorb, Abbott Vascular, Santa Clara, CA, USA). Following these data, the use of this device has diminished in the Netherlands; however, daily practice data are limited. Therefore we studied the incidence of safety and efficacy outcomes with this device in daily clinical practice in a single large tertiary centre in the Netherlands. METHODS: All E‑BVS treated patients were included in this analysis...
September 14, 2017: Netherlands Heart Journal
https://www.readbyqxmd.com/read/28910938/-comparison-of-commercial-hiv-1-viral-load-tests-by-using-proficiency-test-results-in-china-2013-2015
#17
L Zhang, C Jin, Z Jiang, T Tang, Y Jiang, P L Pan
Objective: To compare the bio-equivalence among commercial HIV-1 viral load tests, including EasyQ HIV-1 v2.0 (EasyQ) from bioMerieux NucliSens of France; VERSANT HIV-1 RNA 3.0 assay (bDNA) from Siemens Healthcare Diagnostics of USA; COBAS AmpliPrep/COBAS TaqMan HIV-1 test (Taqman) from Roche Molecular Diagnosis of USA; Abbott Real Time HIV-1 Kit (M2000) from Abbott Molecular of USA and two domestic HIV-1 viral load test kits (domestic kit) from DaAn Gene Company of Sun Yat-Sen University and Liaoning Bio-Pharmaceutical company of Northeast pharmaceutical group, by using proficiency test results in China from 2013 to 2015...
September 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28910112/modular-approach-to-pseudo-neoclerodanes-as-designer-%C3%AE%C2%BA-opioid-ligands
#18
Alexander M Sherwood, Samuel E Williamson, Rachel S Crowley, Logan M Abbott, Victor W Day, Thomas E Prisinzano
Informed by previous semisynthetic work on salvinorin A, a modular total synthesis has been developed capable of producing novel compounds targeting the κ-opioid receptor. The strategy has permitted the deliberate simplification and introduction of functionality about the target molecule to provide access to molecular features on salvinorin A otherwise unattainable by semisynthesis. Using this approach, a potent pseudo-neoclerodane κ-opioid receptor ligand (2) has been realized.
September 14, 2017: Organic Letters
https://www.readbyqxmd.com/read/28903321/alu-based-cell-free-dna-a-novel-biomarker-for-screening-of-gastric-cancer
#19
Chen Qian, Shaoqing Ju, Jing Qi, Jianmei Zhao, Xianjuan Shen, Rongrong Jing, Juan Yu, Li Li, Yingjuan Shi, Lurong Zhang, Zhiwei Wang, Hui Cong
Gastric cancer (GC) is the fourth most common cancer and the second major cause of cancer-related deaths worldwide. In our previous study, a novel and sensitive method for quantifying cell-free DNA (CFD) in human blood was established and tested for its ability to predict patients with tumor. We want to investigate CFD expression in the sera of GC patients in an attempt to explore the clinical significance of CFD in improving the early screening of GC and monitoring GC progression by the branched DNA (bDNA)-based Alu assay...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28901908/performance-of-point-of-care-xpert-hiv-1-plasma-viral-load-assay-at-a-tertiary-hiv-care-centre-in-southern-india
#20
Chinnambedu Ravichandran Swathirajan, Ramachandran Vignesh, Jayaseelan Boobalan, Sunil Suhas Solomon, Shanmugam Saravanan, Pachamuthu Balakrishnan
BACKGROUND: Sustainable suppression of HIV replication forms the basis of anti-retroviral therapy (ART) medication. Thus, reliable quantification of HIV viral load has become an essential factor to monitor the effectiveness of the ART. Longer turnaround-time (TAT), batch testing and technical skills are major drawbacks of standard real-time PCR assays. METHODS: The performance of the point-of-care Xpert HIV-1 viral load assay was evaluated against the Abbott RealTime PCR m2000rt system...
September 13, 2017: Journal of Medical Microbiology
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