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Correctional medicine

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https://www.readbyqxmd.com/read/28099324/interaction-of-isoflurane-tumor-necrosis-factor-%C3%AE-and-%C3%AE-amyloid-on-long-term-potentiation-in-rat-hippocampal-slices
#1
Ran Zhou, Philip Bickler
BACKGROUND: The relationship between inhalational anesthetics such as isoflurane and cognitive impairment in the elderly is controversial. Both β-amyloid peptide (Aβ), associated with Alzheimer disease, and tumor necrosis factor-α (TNF-α), a proinflammatory stress-related peptide, impair the synaptic function. We hypothesized that transient exposure to isoflurane and these peptides would impair synaptic function, manifest as a depression of long-term potentiation (LTP) and paired pulse facilitation (PPF), in the rat hippocampus...
February 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28097674/monte-carlo-simulations-of-ceiling-scatter-in-nuclear-medicine-99m-tc-131-i-and-18-f
#2
Roald S Schnerr, Anouk N de Jong, Guillaume Landry, Cécile R L P N Jeukens, Roel Wierts
PURPOSE: In the design of nuclear medicine treatment and examination rooms, an important consideration is the shielding required for ionizing radiation from the radioactive isotopes used. The shielding in the walls is normally limited to a height lower than the actual ceiling height. The direct radiation, possibly with build-up correction, can be calculated relatively easily. However, little data is available to estimate the dose contribution from ionizing radiation traveling over the wall shielding and scattering off the ceiling...
January 18, 2017: Medical Physics
https://www.readbyqxmd.com/read/28095816/awareness-and-knowledge-among-internal-medicine-house-staff-for-dose-adjustment-of-commonly-used-medications-in-patients-with-ckd
#3
Sikander Surana, Neeru Kumar, Amita Vasudeva, Gulvahid Shaikh, Kenar D Jhaveri, Hitesh Shah, Deepa Malieckal, Joshua Fogel, Gurwinder Sidhu, Sofia Rubinstein
BACKGROUND: Drug dosing errors result in adverse patient outcomes and are more common in patients with chronic kidney disease (CKD). As internists treat the majority of patients with CKD, we study if Internal Medicine house-staff have awareness and knowledge about the correct dosage of commonly used medications for those with CKD. METHODS: A cross-sectional survey was performed and included 341 participants. The outcomes were the awareness of whether a medication needs dose adjustment in patients with CKD and whether there was knowledge for the level of glomerular filtration rate (GFR) a medication needs to be adjusted...
January 17, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28095073/preclinical-and-potential-applications-of-common-western-herbal-supplements-as-complementary-treatment-in-parkinson-s-disease
#4
Luke A Morgan, Oliver Grundmann
Parkinson's disease (PD) is a neurological disorder with a complex pathological etiology, which is not fully understood. Progression of PD may be the result of a buildup of iron in the substantia nigra, microglia-mediated neuroinflammation, dysfunctional mitochondria, or abnormal protein handling. Dopamine is the main neurotransmitter affected, but as the disease progresses, a decrease in all the brain's biogenic amines occurs. Current medication used in the treatment of PD aims to prevent the breakdown of dopamine or increase dopaminergic neurotransmission in the central nervous system...
January 17, 2017: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/28090665/can-patel-s-%C3%AF-accurately-estimate-directionality-of-connections-in-brain-networks-from-fmri
#5
Yunzhi Wang, Olivier David, Xiaoping Hu, Gopikrishna Deshpande
PURPOSE: Investigating directional interactions between brain regions plays a critical role in fully understanding brain function. Consequently, multiple methods have been developed for noninvasively inferring directional connectivity in human brain networks using functional MRI (fMRI). Recent simulations by Smith et al showed that Patel's τ, a method based on higher-order statistics, was the best approach for inferring directional interactions from fMRI. Because simulations make restrictive assumptions about reality, we set out to verify this finding using experimental fMRI data obtained from a three-region network in a rat model with electrophysiological validation...
January 16, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28089593/physician-knowledge-and-attitudes-about-hepatitis-a-and-current-practices-regarding-hepatitis-a-vaccination-delivery
#6
Noele P Nelson, Mandy Allison, Megan C Lindley, Michaela Brtnikova, Lori A Crane, Brenda L Beaty, Laura P Hurley, Allison Kempe
OBJECTIVES: To assess physicians' 1) knowledge and attitudes about hepatitis A disease and HepA vaccine, and 2) child care and school HepA vaccine mandates; 3) practices related to HepA vaccine delivery; 4) factors associated with strongly recommending HepA vaccine to all 1-2 year olds; and 5) feasibility of implementing HepA catch-up vaccination at health maintenance visits. METHODS: A national survey was conducted among representative networks of pediatricians and family medicine physicians (FMs) from March to June, 2014 by e-mail or mail based on provider preference...
January 9, 2017: Academic Pediatrics
https://www.readbyqxmd.com/read/28089381/pet-ct-underlying-physics-instrumentation-and-advances
#7
I Torres Espallardo
Since it was first introduced, the main goal of PET/CT has been to provide both PET and CT images with high clinical quality and to present them to radiologists and specialists in nuclear medicine as a fused, perfectly aligned image. The use of fused PET and CT images quickly became routine in clinical practice, showing the great potential of these hybrid scanners. Thanks to this success, manufacturers have gone beyond considering CT as a mere attenuation corrector for PET, concentrating instead on design high performance PET and CT scanners with more interesting features...
January 12, 2017: Radiología
https://www.readbyqxmd.com/read/28088054/medicinal-versus-recreational-cannabis-use-patterns-of-cannabis-use-alcohol-use-and-cued-arousal-among-veterans-who-screen-positive-for-ptsd
#8
Mallory Loflin, Mitch Earleywine, Marcel Bonn-Miller
INTRODUCTION: The present study is the first to test whether veterans who use cannabis specifically for the purposes of self-medication for their reported PTSD symptoms differ from veterans who use cannabis medicinally for other reasons, or recreationally, in terms of patterns of cannabis use, use of alcohol, and reactivity to written combat trauma reminders. METHODS: Assessment measures were administered online to a sample of veterans with a history of cannabis use (n=1971)...
January 6, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28086761/is-treatment-resistant-schizophrenia-categorically-distinct-from-treatment-responsive-schizophrenia-a-systematic-review
#9
Amy L Gillespie, Ruta Samanaite, Jonathan Mill, Alice Egerton, James H MacCabe
BACKGROUND: Schizophrenia is a highly heterogeneous disorder, and around a third of patients are treatment-resistant. The only evidence-based treatment for these patients is clozapine, an atypical antipsychotic with relatively weak dopamine antagonism. It is plausible that varying degrees of response to antipsychotics reflect categorically distinct illness subtypes, which would have significant implications for research and clinical practice. If these subtypes could be distinguished at illness onset, this could represent a first step towards personalised medicine in psychiatry...
January 13, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28079917/did-you-know-medicare-does-not-usually-include-a-dental-benefit-findings-from-a-multisite-investigation-of-oral-health-literacy
#10
Mark D Macek, Kathryn A Atchison, William Wells, Don Haynes, Ruth M Parker, Haiyan Chen
OBJECTIVES: Medicare does not usually include a dental benefit. Adults who are unaware of this fact risk unanticipated expenses after retirement. This report will explore the sociodemographic and oral health literacy determinants of this knowledge. METHODS: Data came from the Multi-Site Oral Health Literacy Research Study, a survey of patients presenting to two university dental clinics. Sociodemographic descriptors included age, sex, race/ethnicity, education level, and dental insurance status...
January 12, 2017: Journal of Public Health Dentistry
https://www.readbyqxmd.com/read/28078311/common-variant-rs356182-near-snca-defines-a-parkinson-s-disease-endophenotype
#11
Christine A Cooper, Nimansha Jain, Michael D Gallagher, Daniel Weintraub, Sharon X Xie, Yosef Berlyand, Alberto J Espay, Joseph Quinn, Karen L Edwards, Thomas Montine, Vivianna M Van Deerlin, John Trojanowski, Cyrus P Zabetian, Alice S Chen-Plotkin
OBJECTIVE: Parkinson's disease (PD) presents clinically with several motor subtypes that exhibit variable treatment response and prognosis. Here, we investigated genetic variants for their potential association with PD motor phenotype and progression. METHODS: We screened 10 SNPs, previously associated with PD risk, for association with tremor-dominant (TD) versus postural-instability gait disorder (PIGD) motor subtypes. SNPs that correlated with the TD/PIGD ratio in a discovery cohort of 251 PD patients were then evaluated in a multi-site replication cohort of 559 PD patients...
January 2017: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/28077529/poor-agreement-in-significant-findings-between-meta-analyses-and-subsequent-large-randomized-trials-in-perioperative-medicine
#12
REVIEW
H Sivakumar, P J Peyton
BACKGROUND: The reliability of meta-analysis (MA) in predicting the findings of subsequent large randomized controlled trials (RCTs) has not been assessed in perioperative medicine and anaesthesia. METHODS: Using Medline and PubMed, large RCTs (n≥1000) published since 2000 in the anaesthesia and perioperative medicine/critical care literature were identified. All previous MAs of RCTs investigating the same intervention and population were sourced. For all reported major morbid endpoints common to each, results (significant/non-significant P<0...
October 2016: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28076272/correction-to-reported-practice-patterns-among-family-physicians-with-a-geriatrics-certificate-of-added-qualifications
#13
(no author information available yet)
In the above-mentioned article,(1) the electronic version differs from the print version due to data reporting errors. The electronic version on the Journal of the American Board of Family Medicine website has been corrected. We apologize for the error, and we regret any confusion or inconvenience it may have caused.
November 2016: Journal of the American Board of Family Medicine: JABFM
https://www.readbyqxmd.com/read/28076271/correction-to-family-physicians-with-a-certificate-of-added-qualifications-caqs-in-sports-medicine-spend-the-majority-of-their-time-practicing-sports-medicine
#14
(no author information available yet)
In the above-mentioned article,(1) the electronic version differs from the print version due to data errors in the figure. Consequently, the original title no longer accurately reflects the findings after correcting the data errors and has been changed to: "Family Physicians with a Certificate of Added Qualifications in Sports Medicine Spend an Increasing Amount of Time Practicing Sports Medicine." The electronic version on the Journal of the American Board of Family Medicine website has been corrected. We apologize for the error, and we regret any confusion or inconvenience it may have caused...
November 2016: Journal of the American Board of Family Medicine: JABFM
https://www.readbyqxmd.com/read/28076270/correction-to-the-performance-of-fertility-awareness-based-method-apps-marketed-to-avoid-pregnancy
#15
(no author information available yet)
In the above-mentioned article,(1) the electronic version differs from the print version due to typos in Table 2. The only data affected were the apps that did not predict the fertile window. The electronic version on the Journal of the American Board of Family Medicine website has been corrected. We apologize for the error, and we regret any confusion or inconvenience it may have caused.
November 2016: Journal of the American Board of Family Medicine: JABFM
https://www.readbyqxmd.com/read/28075593/formation-of-nickel-clusters-wrapped-in-carbon-cages-toward-new-endohedral-metallofullerene-synthesis
#16
Alexander S Sinitsa, Thomas W Chamberlain, Thilo Zoberbier, Irina V Lebedeva, Andrey M Popov, Andrey A Knizhnik, Robert L McSweeney, Johannes Biskupek, Ute Kaiser, Andrei N Khlobystov
Despite the high potential of endohedral metallofullerenes (EMFs) for application in biology, medicine and molecular electronics, and recent efforts in EMF synthesis, the variety of EMFs accessible by conventional synthetic methods remains limited and does not include, for example, EMFs of late transition metals. We propose a method in which EMF formation is initiated by electron irradiation in aberration-corrected high-resolution transmission electron spectroscopy (AC-HRTEM) of a metal cluster surrounded by amorphous carbon inside a carbon nanotube serving as a nanoreactor and apply this method for synthesis of nickel EMFs...
January 18, 2017: Nano Letters
https://www.readbyqxmd.com/read/28074609/rapid-chemical-shift-encoding-with-single-acquisition-single-slab-3d-grase
#17
Hahnsung Kim, Dong-Hyun Kim, Chul-Ho Sohn, Jaeseok Park
PURPOSE: To investigate the feasibility of chemical shift encoded, single-slab 3D GRASE for rapid fat-water separation within a single acquisition. METHODS: The proposed method incorporates signal-to-noise-ratio-optimal chemical shift encoding into single-slab 3D GRASE with variable flip angles. Chemical shift induced phase information was encoded in succession to different positions in k-space by inserting phase encoding blips between adjacent lobes of the oscillating readout gradients...
January 11, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28074530/slice-profile-and-b1-corrections-in-2d-magnetic-resonance-fingerprinting
#18
Dan Ma, Simone Coppo, Yong Chen, Debra F McGivney, Yun Jiang, Shivani Pahwa, Vikas Gulani, Mark A Griswold
PURPOSE: The goal of this study is to characterize and improve the accuracy of 2D magnetic resonance fingerprinting (MRF) scans in the presence of slice profile (SP) and B1 imperfections, which are two main factors that affect quantitative results in MRF. METHODS: The SP and B1 imperfections are characterized and corrected separately. The SP effect is corrected by simulating the radiofrequency pulse in the dictionary, and the B1 is corrected by acquiring a B1 map using the Bloch-Siegert method before each scan...
January 11, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28070897/stable-spline-deconvolution-for-dynamic-susceptibility-contrast-mri
#19
Denis Peruzzo, Marco Castellaro, Gianluigi Pillonetto, Alessandra Bertoldo
PURPOSE: To present the stable spline (SS) deconvolution method for the quantification of the cerebral blood flow (CBF) from dynamic susceptibility contrast MRI. METHODS: The SS method was compared with both the block-circulant singular value decomposition (oSVD) and nonlinear stochastic regularization (NSR) methods. oSVD is one of the most popular deconvolution methods in dynamic susceptibility contrast MRI (DSC-MRI). NSR is an alternative approach that we proposed previously...
January 9, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28065900/exploring-the-predictive-power-of-polygenic-scores-derived-from-genome-wide-association-studies-a-study-of-10-complex-traits
#20
Hon-Cheong So, Pak C Sham
MOTIVATION: It is hoped that advances in our knowledge in disease genomics will contribute to personalized medicine such as individualized preventive strategies or early diagnoses of diseases. With the growth of genome-wide association studies (GWAS) in the past decade, how far have we reached this goal? In this study we explored the predictive ability of polygenic risk scores (PRSs) derived from GWAS for a range of complex disease and traits. RESULTS: We first proposed a new approach to evaluate predictive performances of PRS at arbitrary P-value thresholds...
January 8, 2017: Bioinformatics
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