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https://www.readbyqxmd.com/read/29858666/insights-into-the-structural-dynamics-of-the-bacteriophage-t7-dna-polymerase-and-its-complexes
#1
Damian J Magill, John W McGrath, Vincent O'Flaherty, John P Quinn, Leonid A Kulakov
The T7 DNA polymerase is dependent on the host protein thioredoxin (trx) for its processivity and fidelity. Using all-atom molecular dynamics, we demonstrate the specific interactions between trx and the T7 polymerase, and show that trx docking to its binding domain on the polymerase results in a significant level of stability and exposes a series of basic residues within the domain that interact with the phosphodiester backbone of the DNA template. We also characterize the nature of interactions between the T7 DNA polymerase and its DNA template...
June 1, 2018: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/29845709/aa-attendance-and-abstinence-for-dually-diagnosed-patients-a-meta-analytic-review
#2
REVIEW
J Scott Tonigan, Matthew R Pearson, Molly Magill, Kylee J Hagler
BACKGROUND AND AIMS: There is consensus that best clinical practice for dual diagnosis (DD) is integrated mental health and substance use treatment augmented with Alcoholics Anonymous (AA) attendance. This is the first quantitative review of the direction and magnitude of the association between AA attendance and alcohol abstinence for DD patients. METHOD: A systematic literature search (1993-2017) identified 22 studies yielding 24 effect sizes that met our inclusion criteria (8,075 patients)...
May 29, 2018: Addiction
https://www.readbyqxmd.com/read/29807788/acute-kidney-injury-after-prophylactic-cefuroxime-and-gentamicin-in-patients-undergoing-primary-hip-and-knee-arthroplasty-a-propensity-score-matched-study
#3
Adam Tucker, Paul Hegarty, Paul J Magill, Janine Blaney, Lynne V Armstrong, John E McCaffrey, David E Beverland
BACKGROUND: Perioperative acute kidney injury (AKI) can be associated with lower limb arthroplasty and increases morbidity, length of stay, and mortality. AKI is more prevalent in some antibiotic regimes compared with others. The aim of the present study is to assess the impact of cefuroxime (CEF), with or without gentamicin (±G), on AKI rates. METHODS: A prospective cohort study involving patients undergoing hip or knee arthroplasty was performed, between September 1, 2015 and November 30, 2016...
May 3, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29799898/-origin-of-commonly-used-eponyms-in-the-intensive-care-unit-daily-job
#4
Alejandro Donoso F, Daniela Arriagada S, Megan Neumann B
Eponyms reflect the history of medicine, diseases, and doctors in their time. Their use is controversial, presenting supporters and detractors. However, the use of eponyms persist in the modern medical language in the Intensive Care Units and includes some frequently used ones such as Foley, Seldinger, Down, Macintosh, Magill, Ringer, Yankauer, Doppler, and French. The objective of this review is to promote biographical knowledge and the historical period in which its medical use took place, in order to deepen aspects of medicine history...
April 2018: Revista Chilena de Pediatría
https://www.readbyqxmd.com/read/29771713/we-ve-had-our-fill-of-magill
#5
Timothy P Turkstra, Philip M G Jones
No abstract text is available yet for this article.
May 15, 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29756483/the-glidescope-with-modified-magill-forceps-facilitates-nasogastric-tube-insertion-in-anesthetized-patients-a-randomized-clinical-study
#6
Han Joon Kim, Su In Park, Sang Yun Cho, Min Jae Cho
Objective Insertion of a nasogastric tube (NGT) in patients who have been intubated with an endotracheal tube while under general anesthesia can cause difficulties and lead to complications, including hemorrhage. A visualization-aided modality was recently used to facilitate NGT insertion. Some studies have focused on the role of modified Magill forceps, which have angles similar to those of the GlideScope blade (Verathon, Bothell, WA, USA). Methods Seventy patients were divided into a control group (Group C) and an experimental group (GlideScope and modified Magill forceps, Group M)...
January 1, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29750362/brief-motivational-intervention-for-underage-young-adult-drinkers-results-from-a-randomized-clinical-trial
#7
Suzanne M Colby, Lindsay Orchowski, Molly Magill, James G Murphy, Linda A Brazil, Timothy R Apodaca, Christopher W Kahler, Nancy P Barnett
BACKGROUND: While there is a substantial literature on the efficacy of brief motivational intervention (BMI) for college student drinkers, research has focused less on young adults who do not attend a four-year college, despite their elevated risk for excessive alcohol use and associated harmful consequences. METHODS: This randomized controlled trial (NCT01546025) compared the efficacy of BMI to a time-matched attention control intervention (Relaxation Training; REL) for reducing alcohol consumption and related negative consequences in an underage young adult sample...
May 11, 2018: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/29747575/assessing-treatment-fidelity-and-contamination-in-a-cluster-randomised-controlled-trial-of-motivational-interviewing-and-cognitive-behavioural-therapy-skills-in-type-2-diabetes
#8
Nicholas Magill, Helen Graves, Nicole de Zoysa, Kirsty Winkley, Stephanie Amiel, Emma Shuttlewood, Sabine Landau, Khalida Ismail
BACKGROUND: Competencies in psychological techniques delivered by primary care nurses to support diabetes self-management were compared between the intervention and control arms of a cluster randomised controlled trial as part of a process evaluation. The trial was pragmatic and designed to assess effectiveness. This article addresses the question of whether the care that was delivered in the intervention and control trial arms represented high fidelity treatment and attention control, respectively...
May 10, 2018: BMC Family Practice
https://www.readbyqxmd.com/read/29734182/a-systematic-review-and-meta-analysis-of-the-effectiveness-of-acetylcholinesterase-inhibitors-and-memantine-in-treating-the-cognitive-symptoms-of-dementia
#9
Ruth Knight, Mizanur Khondoker, Nicholas Magill, Robert Stewart, Sabine Landau
BACKGROUND: Acetylcholinesterase inhibitors (AChEIs) and memantine are commonly used in the management of dementia. In routine clinical practice, dementia is often monitored via the Mini-Mental State Examination (MMSE). We conducted a systematic review and meta-analysis of the effects of these drugs on MMSE scores. SUMMARY: Eighty trials were identified. Pooled effect estimates were in favour of both AChEIs and memantine at 6 months. Meta-regression indicated that dementia subtype was a moderator of AChEI treatment effect, with the effect of treatment versus control twice as high for patients with Parkinson disease dementia/ dementia with Lewy bodies (2...
May 7, 2018: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/29726777/surgical-outcomes-after-reoperation-for-recurrent-skull-base-meningiomas
#10
Stephen T Magill, David S Lee, Adam J Yen, Calixto-Hope G Lucas, David R Raleigh, Manish K Aghi, Philip V Theodosopoulos, Michael W McDermott
OBJECTIVE Skull base meningiomas are surgically challenging tumors due to the intricate skull base anatomy and the proximity of cranial nerves and critical cerebral vasculature. Many studies have reported outcomes after primary resection of skull base meningiomas; however, little is known about outcomes after reoperation for recurrent skull base meningiomas. Since reoperation is one treatment option for patients with recurrent meningioma, the authors sought to define the risk profile for reoperation of skull base meningiomas...
May 4, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29702311/initial-experience-with-intraoperative-phosphorous-32-brachytherapy-during-resection-of-malignant-spinal-tumors
#11
Cecilia L Dalle Ore, Christopher P Ames, Stephen T Magill, Vedat Deviren, Manish K Aghi, Darryl Lau
INTRODUCTION: Brachytherapy is a major adjuvant modality for neoplasms, but few have trialed its use for spinal tumors. This study examines perioperative and oncological outcomes of malignant spinal tumor patients who underwent resection with intraoperative phosphorous-32 (P32) brachytherapy. METHODS: Consecutive adult patients who underwent P32 brachytherapy during malignant spinal tumor resection were retrospectively identified from 2014 to 2015. Complications, tumor recurrence, and survival were reviewed...
April 24, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29689171/sensory-based-approaches-in-intervention-for-children-with-autism-spectrum-disorder-influences-on-occupational-therapists-recommendations-and-perceived-benefits
#12
Sandra Thompson-Hodgetts, Joyce Magill-Evans
OBJECTIVE: We investigated factors that influenced occupational therapists' beliefs about and use of sensory-based approaches for children with autism spectrum disorder (ASD). METHOD: Occupational therapists working with children with ASD (N = 211 from 16 countries) completed an online survey addressing their work experience, training, use of sensory-based approaches, and beliefs and perceptions about the effects of the approaches. Linear regression was used to determine predictors of use of and beliefs about sensory-based approaches...
May 2018: American Journal of Occupational Therapy: Official Publication of the American Occupational Therapy Association
https://www.readbyqxmd.com/read/29673467/transition-intervention-for-adolescents-with-congenital-heart-disease
#13
Andrew S Mackie, Gwen R Rempel, Adrienne H Kovacs, Miriam Kaufman, Kathryn N Rankin, Ahlexxi Jelen, Maryna Yaskina, Renee Sananes, Erwin Oechslin, Dimi Dragieva, Sonila Mustafa, Elina Williams, Michelle Schuh, Cedric Manlhiot, Samantha J Anthony, Joyce Magill-Evans, David Nicholas, Brian W McCrindle
BACKGROUND: There is little evidence regarding the efficacy of interventions to prepare adolescents with congenital heart disease (CHD) to enter adult care. OBJECTIVES: The goal of this study was to evaluate the impact of a nurse-led transition intervention on lapses between pediatric and adult care. METHODS: A cluster randomized clinical trial was conducted of a nurse-led transition intervention for 16- to 17-year-olds with moderate or complex CHD versus usual care...
April 24, 2018: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29626689/petrous-face-meningiomas-classification-clinical-syndromes-and-surgical-outcomes
#14
Stephen T Magill, Jonathan W Rick, William C Chen, David A Haase, David R Raleigh, Manish K Aghi, Philip V Theodosopoulos, Michael W McDermott
BACKGROUND: Petrous face meningiomas (PFMs) are challenging tumors because of their proximity to the cranial nerves, brainstem, and critical vasculature. The objective of this study is to present surgical outcomes and support an anatomic classification for PFM based on clinical presentation. METHODS: A retrospective chart review was performed, and 51 PFMs were identified. Tumors were classified by location along the petrous face into anterior, middle, and posterior...
June 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29624151/histopathological-features-predictive-of-local-control-of-atypical-meningioma-after-surgery-and-adjuvant-radiotherapy
#15
William C Chen, Stephen T Magill, Ashley Wu, Harish N Vasudevan, Olivier Morin, Manish K Aghi, Philip V Theodosopoulos, Arie Perry, Michael W McDermott, Penny K Sneed, Steve E Braunstein, David R Raleigh
OBJECTIVE The goal of this study was to investigate the impact of adjuvant radiotherapy (RT) on local recurrence and overall survival in patients undergoing primary resection of atypical meningioma, and to identify predictive factors to inform patient selection for adjuvant RT. METHODS One hundred eighty-two patients who underwent primary resection of atypical meningioma at a single institution between 1993 and 2014 were retrospectively identified. Patient, meningioma, and treatment data were extracted from the medical record and compared using the Kaplan-Meier method, log-rank tests, multivariate analysis (MVA) Cox proportional hazards models with relative risk (RR), and recursive partitioning analysis...
April 6, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29622327/imaging-gently
#16
REVIEW
Amy L Puchalski, Christyn Magill
Advances in medical imaging are invaluable in the care of pediatric patients in the emergent setting. The diagnostic accuracy offered by studies using ionizing radiation, such as plain radiography, computed tomography, and fluoroscopy, are not without inherent risks. This article reviews the evidence supporting the risk of ionizing radiation from medical imaging as well as discusses clinical scenarios in which clinicians play an important role in supporting the judicious use of imaging studies.
May 2018: Emergency Medicine Clinics of North America
https://www.readbyqxmd.com/read/29606048/relationship-between-tumor-location-size-and-who-grade-in-meningioma
#17
Stephen T Magill, Jacob S Young, Ricky Chae, Manish K Aghi, Philip V Theodosopoulos, Michael W McDermott
OBJECTIVE Prior studies have investigated preoperative risk factors for meningioma; however, no association has been shown between meningioma tumor size and tumor grade. The objective of this study was to investigate the relationship between tumor size and grade in a large single-center study of patients undergoing meningioma resection. METHODS A retrospective chart review of patients undergoing meningioma resection at the University of California, San Francisco, between 1985 and 2015 was performed. Patients with incomplete information, spinal meningiomas, multiple meningiomas, or WHO grade III meningiomas were excluded...
April 2018: Neurosurgical Focus
https://www.readbyqxmd.com/read/29606045/tuberculum-sellae-meningiomas-grading-scale-to-assess-surgical-outcomes-using-the-transcranial-versus-transsphenoidal-approach
#18
Stephen T Magill, Ramin A Morshed, Calixto-Hope G Lucas, Manish K Aghi, Philip V Theodosopoulos, Mitchel S Berger, Oreste de Divitiis, Domenico Solari, Paolo Cappabianca, Luigi M Cavallo, Michael W McDermott
OBJECTIVE Tuberculum sellae meningiomas (TSMs) are surgically challenging tumors that can severely impair vision. Debate exists regarding whether the transcranial (TC) or endoscopic transsphenoidal (TS) approach is best for resecting these tumors, and there are few large series comparing these approaches. METHODS A retrospective chart review was performed at 2 academic centers comparing TC and TS approaches with respect to vision, extent of resection, recurrence, and complications. The authors report surgical outcomes and propose a simple preoperative tumor grading scale that scores tumor size (1-2), optic canal invasion (0-2), and arterial encasement (0-2)...
April 2018: Neurosurgical Focus
https://www.readbyqxmd.com/read/29596017/mechanisms-for-the-increased-fatigability-of-the-lower-limb-in-people-with-type-2-diabetes
#19
Jonathon Senefeld, Steven B Magill, April Harkins, Alison Rosemary Harmer, Sandra K Hunter
Fatiguing exercise is the basis of exercise training and a cornerstone of management of type 2 diabetes mellitus (T2D), however, little is known about the fatigability of limb muscles and the involved mechanisms in people with T2D. The purpose was to compare fatigability of knee extensor muscles between people with T2D and controls without diabetes and determine the neural and muscular mechanisms for a dynamic fatiguing task. Seventeen people with T2D (10 men, 7 women: 59.6{plus minus}9.0 years) and 21 age-, BMI- and physical activity-matched controls (11 men, 10 women: 59...
March 29, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29590631/comprehensive-molecular-profiling-identifies-foxm1-as-a-key-transcription-factor-for-meningioma-proliferation
#20
Harish N Vasudevan, Steve E Braunstein, Joanna J Phillips, Melike Pekmezci, Bryan A Tomlin, Ashley Wu, Gerald F Reis, Stephen T Magill, Jie Zhang, Felix Y Feng, Theodore Nicholaides, Susan M Chang, Penny K Sneed, Michael W McDermott, Mitchel S Berger, Arie Perry, David R Raleigh
Meningioma is the most common primary intracranial tumor, but the molecular drivers of aggressive meningioma are incompletely understood. Using 280 human meningioma samples and RNA sequencing, immunohistochemistry, whole-exome sequencing, DNA methylation arrays, and targeted gene expression profiling, we comprehensively define the molecular profile of aggressive meningioma. Transcriptomic analyses identify FOXM1 as a key transcription factor for meningioma proliferation and a marker of poor clinical outcomes...
March 27, 2018: Cell Reports
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