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https://www.readbyqxmd.com/read/28431428/computational-and-in-vitro-experimental-investigation-of-intrathecal-drug-distribution-parametric-study-of-the-effect-of-injection-volume-cerebrospinal-fluid-pulsatility-and-drug-uptake
#1
Kevin M Tangen, Roxanne Leval, Ankit I Mehta, Andreas A Linninger
BACKGROUND: Intrathecal drug delivery is an attractive option to circumvent the blood-brain barrier for pain management through its increased efficacy of pain relief, reduction in adverse side effects, and cost-effectiveness. Unfortunately, there are limited guidelines for physicians to choose infusion or drug pump settings to administer therapeutic doses to specific regions of the spine or the brain. Although empiric trialing of intrathecal drugs is critical to determine the sustained side effects, currently there is no inexpensive in vitro method to guide the selection of spinal drug delivery parameters...
May 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28431396/skeletal-muscle-measures-and-physical-function-in-older-adults-with-cancer-sarcopenia-or-myopenia
#2
Grant R Williams, Allison M Deal, Hyman B Muss, Marc S Weinberg, Hanna K Sanoff, Kirsten A Nyrop, Mackenzi Pergolotti, Shlomit Strulov Shachar
BACKGROUND: Skeletal muscle loss, commonly known as sarcopenia, is highly prevalent in older adults and linked with adverse outcomes in cancer, yet the definition and role of sarcopenia remains uncertain. The aim of this study was to examine the association of Computerized Tomography (CT) assessed skeletal muscle measures with physical function in older adults with cancer. RESULTS: CTs for 185 patients were available. Median age 73 (IQR 68-76) and 56.5% female. After controlling for sex and BMI, we found no evidence that SMI was associated with physical function impairments...
April 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28431345/insights-into-targeting-young-male-drivers-with-anti-speeding-advertising-an-application-of-the-step-approach-to-message-design-and-testing-satmdt
#3
I Lewis, K M White, B Ho, B Elliott, B Watson
In Australia, young drivers aged 17-25 years comprise 13% of the population yet account for 22% of all road deaths with young males over-represented in such trauma. Speeding represents a major contributing factor and advertising campaigns have long focused on promoting anti-speeding messages in the effort to reduce drivers' speeds. Positioned within a larger program of research aimed at developing, piloting, and evaluating a range of theoretically-informed anti-speeding messages, the current study reports results relating to the final phase of the research, the evaluation...
April 18, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28431323/transcranial-magnetic-stimulation-in-developmental-stuttering-relations-with-previous-neurophysiological-research-and-future-perspectives
#4
REVIEW
P Busan, P P Battaglini, M Sommer
Developmental stuttering (DS) is a disruption of the rhythm of speech, and affected people may be unable to execute fluent voluntary speech. There are still questions about the exact causes of DS. Evidence suggests there are differences in the structure and functioning of motor systems used for preparing, executing, and controlling motor acts, especially when they are speech related. Much research has been obtained using neuroimaging methods, ranging from functional magnetic resonance to diffusion tensor imaging and electroencephalography/magnetoencephalography...
April 3, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28431292/cannabis-and-cue-induced-craving-in-cocaine-dependent-individuals-a-pilot-study
#5
K Giasson-Gariépy, S Potvin, M Ghabrash, J Bruneau, D Jutras-Aswad
BACKGROUND: Cannabis consumption is common among cocaine users; however, little is known about its effect on cocaine craving. The objective of this study was to assess whether cannabis co-use is associated with lower cue-induced cocaine craving in non-treatment-seeking cocaine-dependent individuals. METHODS: Data from twenty-eight cocaine-dependent men were analyzed in this pilot study. Cocaine-dependent subjects (n=12) were compared with cocaine-dependent subjects who also abused or were dependent on cannabis (n=16)...
March 30, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28431235/improving-surgeons-comfort-with-prismatic-glasses-during-cleft-palate-surgery-preliminary-findings
#6
Hai Kuang, Guosheng Chen, Qitao Wen, Shuai Li, Lei Che, Feixin Liang
PURPOSE: We aimed to observe the effect of prismatic glasses on improving surgeons' comfort during cleft palate surgery. MATERIALS AND METHODS: A within-subjects design was used. We included 3 oral-maxillofacial surgeons and 6 patients with complete cleft palate in the study. One group of cleft palate patients (3 complete cleft palates) was allocated to each of the 3 surgeons not wearing prismatic glasses, and another similar group of cleft palate patients was allocated to the same 3 surgeons wearing prismatic glasses...
March 27, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28431197/serum-c-reactive-protein-procalcitonin-and-lactate-dehydrogenase-for-the-diagnosis-of-pancreatic-necrosis
#7
REVIEW
Oluyemi Komolafe, Stephen P Pereira, Brian R Davidson, Kurinchi Selvan Gurusamy
BACKGROUND: The treatment of people with pancreatic necrosis differs from that of people with oedematous pancreatitis. It is important to know the diagnostic accuracy of serum C-reactive protein (CRP), serum procalcitonin, and serum lactate dehydrogenase (LDH) as a triage test for the detection of pancreatic necrosis in people with acute pancreatitis, so that an informed decision can be made as to whether the person with pancreatic necrosis needs further investigations such as computed tomography (CT) scan or magnetic resonance imaging (MRI) scan and treatment for pancreatic necrosis started...
April 21, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28431180/collagenosis-of-the-deep-medullary-veins-an-underrecognized-pathologic-correlate-of-white-matter-hyperintensities-and-periventricular-infarction
#8
Julia Keith, Fu-Qiang Gao, Raza Noor, Alex Kiss, Gayathiri Balasubramaniam, Kelvin Au, Ekaterina Rogaeva, Mario Masellis, Sandra E Black
White matter hyperintensities (WMH) are prevalent. Although arteriolar disease has been implicated in their pathogenesis, venous pathology warrants consideration. We investigated relationships of WMH with histologic venous, arteriolar and white matter abnormalities and correlated findings with premortem neuroimaging. Three regions of periventricular white matter were sampled from archived autopsy brains of 24 pathologically confirmed Alzheimer disease (AD) and 18 age-matched nonAD patients. Using trichrome staining, venous collagenosis (VC) of periventricular veins (<150 µm in diameter) was scored for severity of wall thickening and occlusion; percent stenosis by collagenosis of large caliber (>200 µm) veins (laVS) was measured...
April 1, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/28431167/performance-of-18f-fdg-pet-ct-in-the-characterization-of-adrenal-masses-in-non-cancer-patients-a-prospective-study
#9
Carole Guerin, François Pattou, Laurent Brunaud, Jean-Christophe Lifante, Eric Mirallié, Magalie Haissaguerre, Damien Huglo, Pierre Olivier, Claire Houzard, Catherine Ansquer, Elif Hindié, Anderson Loundou, Cendrine Archange, Antoine Tabarin, Fréderic Sebag, Karine Baumstarck, David Taïeb
Context: Few prospective studies have evaluated the role of 18F-Fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) in the characterization of adrenal masses. Objective: To assess the performance of 18F-FDG PET/CT in the malignancy diagnosis of adrenal masses in non-cancer patients. Design: Prospective multicenter study. Material and methods: The study population consisted of 87 patients (87 adrenal masses) referred to endocrine surgeons: 56 with mass diameter ≥40 mm and 31 with a diameter <40 mm and of indeterminate nature based on unenhanced and washout CT attenuation densities...
April 20, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28431161/engineering-a-high-affinity-peptide-binding-site-into-the-anti-cea-mab-m5a
#10
Cindy Zer, Kendra N Avery, Kassondra Meyer, Leah Goodstein, Krzysztof P Bzymek, Gagandeep Singh, John C Williams
We have previously identified a cyclic peptide called meditope which binds to the central cavity of the Fab portion of cetuximab and shown that this peptide binding site can be grafted, or 'meditope-enabled', onto trastuzumab. This peptide has been shown to act as a hitch for the non-covalent attachment of imaging agents to meditope-enabled antibodies. Herein, we explore the process of grafting this peptide binding site onto M5A, an anti-CEA antibody in clinical trials for cancer diagnostics. In order to explore the contributions of the amino acids, we sequentially introduced pairs of amino acid substitutions into the Fab and then we reverse-substituted key residues in the presence of the other substitutions...
April 19, 2017: Protein Engineering, Design & Selection: PEDS
https://www.readbyqxmd.com/read/28431136/c1-lateral-mass-displacement-and-transverse-atlantal-ligament-failure-in-jefferson-s-fracture-a-biomechanical-study-of-the-rule-of-spence
#11
Rafeek O Woods, Serkan Inceoglu, Yusuf T Akpolat, Wayne K Cheng, Brice Jabo, Olumide Danisa
BACKGROUND: Jefferson's fracture, first described in 1927, represents a bursting fracture of the C1 ring with lateral displacement of the lateral masses. It has been determined that if the total lateral mass displacement (LMD) exceeds 6.9 mm, there is high likelihood of transverse atlantal ligament (TAL) rupture, and if LMD is less than 5.7 mm TAL injury is unlikely. Several recent radiographic studies have questioned the accuracy and validity of the "rule of Spence" and it lacks biomechanical support...
April 20, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28431062/impact-of-basal-inferolateral-scar-burden-determined-by-automatic-analysis-of-99mtc-mibi-myocardial-perfusion-spect-on-the-long-term-prognosis-of-cardiac-resynchronization-therapy
#12
Itsuro Morishima, Kenji Okumura, Hideyuki Tsuboi, Yasuhiro Morita, Kensuke Takagi, Ruka Yoshida, Hiroaki Nagai, Toshiro Tomomatsu, Yoshihiro Ikai, Kazushi Terada, Takahito Sone, Toyoaki Murohara
Aims: Left-ventricular (LV) scarring may be associated with a poor response to cardiac resynchronization therapy (CRT). The automatic analysis of myocardial perfusion single-photon emission computed tomography (MP-SPECT) may provide objective quantification of LV scarring. We investigated the impact of LV scarring determined by an automatic analysis of MP-SPECT on short-term LV volume response as well as long-term outcome. Methods and Results: We studied consecutive 51 patients who were eligible to undergo 99mTc-MIBI MP-SPECT both at baseline and 6 months after CRT (ischaemic cardiomyopathies 31%)...
April 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28431057/quantitative-analysis-of-pkp2-and-neighbouring-genes-in-a-patient-with-arrhythmogenic-right-ventricular-cardiomyopathy-caused-by-heterozygous-pkp2-deletion
#13
Keiko Sonoda, Seiko Ohno, Sou Otuki, Koichi Kato, Nobue Yagihara, Hiroshi Watanabe, Takeru Makiyama, Tohru Minamino, Minoru Horie
Aims: Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a disease mainly caused by desmosome gene mutations. The genetic culprit, however, remains elusive in ∼50% of ARVC patients. One of the reasons for missing genetic abnormalities is the difficulty in detecting large deletions/duplications, which are called as copy number variation (CNV) by the Sanger sequencing method. This study aimed to identify CNVs in PKP2 and a part of other desmosome genes in ARVC patients. Methods and Results: The study cohort consisted of 71 ARVC probands who were diagnosed as definite or borderline cases based on 2010 Task Force Criteria...
April 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28431009/artefact-free-late-gadolinium-enhancement-imaging-in-patients-with-implanted-cardiac-devices-using-a-modified-broadband-sequence-current-strategies-and-results-from-a-real-world-patient-cohort
#14
Sebastian Hilbert, Alexander Weber, Kay Nehrke, Peter Börnert, Bernhard Schnackenburg, Sabrina Oebel, Ricardo Spampinato, Cathleen Rogge, Sergio Richter, Gerhard Hindricks, Ingo Paetsch, Cosima Jahnke
Aims: Cardiac magnetic resonance (CMR) imaging in patients with implanted cardiac devices is often limited by device-related imaging artefacts. Limitations can potentially be overcome by employing a broadband late gadolinium enhancement (LGE)-CMR imaging technique. The purpose of this study was to investigate the relationship between implanted cardiac devices and the optimal frequency offset on broadband LGE-CMR imaging to increase the artefact-free visibility of myocardial segments. Methods and results: A phantom study was performed to characterize magnetic field disturbances related to 15 different cardiac devices...
April 18, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28431006/regulation-of-oxidized-platelet-lipidome-implications-for-coronary-artery-disease
#15
Madhumita Chatterjee, Dominik Rath, Jörg Schlotterbeck, Johannes Rheinlaender, Britta Walker-Allgaier, Nada Alnaggar, Monika Zdanyte, Iris Müller, Oliver Borst, Tobias Geisler, Tilman E Schäffer, Michael Lämmerhofer, Meinrad Gawaz
Aims: Hyperlipidaemia enhances susceptibility to thrombosis, while platelet oxidixed LDL (oxLDL) binding in acute coronary syndrome (ACS) correlates with activation status. This study explores the platelet lipidome in symptomatic coronary artery disease (CAD) patients and the functional consequences of the chemokine CXCL12 and its receptors CXCR-4/-7 on lipid uptake in platelets. Methods and results: Platelet-oxLDL detected by flow cytometry was enhanced (P = 0...
April 18, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28431000/left-brain-asymmetry-of-the-planum-temporale-in-a-nonhominid-primate-redefining-the-origin-of-brain-specialization-for-language
#16
Damien Marie, Muriel Roth, Romain Lacoste, Bruno Nazarian, Alice Bertello, Jean-Luc Anton, William D Hopkins, Konstantina Margiotoudi, Scott A Love, Adrien Meguerditchian
The planum temporale (PT) is a critical region of the language functional network in the human brain showing a striking size asymmetry toward the left hemisphere. Historically considered as a structural landmark of the left-brain specialization for language, a similar anatomical bias has been described in great apes but never in monkeys-indicating that this brain landmark might be unique to Hominidae evolution. In the present in vivo magnetic resonance imaging study, we show clearly for the first time in a nonhominid primate species, an Old World monkey, a left size predominance of the PT among 96 olive baboons (Papio anubis), using manual delineation of this region in each individual hemisphere...
April 19, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28430991/development-toward-high-resolution-x-ray-phase-imaging
#17
Atsushi Momose
Since the 1990s, the use of X-ray phase contrast has been extensively studied for imaging weakly absorbing objects consisting of low-Z elements such as biological soft tissues and polymers. The development of X-ray microscopy was also progressing during this time, although absorption contrast was only available. It was straightforward and important to develop phase-contrast X-ray microscopy. One characteristic in the development is that quantitative phase measurement is possible through the acquisition of phase-contrast images under a specific procedure, thanks to digital X-ray image detectors...
April 18, 2017: Microscopy
https://www.readbyqxmd.com/read/28430974/using-transcranial-magnetic-stimulation-of-the-undamaged-brain-to-identify-lesion-sites-that-predict-language-outcome-after-stroke
#18
Diego L Lorca-Puls, Andrea Gajardo-Vidal, Mohamed L Seghier, Alexander P Leff, Varun Sethi, Susan Prejawa, Thomas M H Hope, Joseph T Devlin, Cathy J Price
Transcranial magnetic stimulation focused on either the left anterior supramarginal gyrus or opercular part of the left inferior frontal gyrus has been reported to transiently impair the ability to perform phonological more than semantic tasks. Here we tested whether phonological processing abilities were also impaired following lesions to these regions in right-handed, English speaking adults, who were investigated at least 1 year after a left-hemisphere stroke. When our regions of interest were limited to 0...
April 18, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28430885/lesion-mapping-of-stroke-related-erectile-dysfunction
#19
Klemens Winder, Frank Seifert, Martin Köhrmann, Carl Crodel, Stephan Kloska, Arnd Dörfler, Katharina M Hösl, Stefan Schwab, Max J Hilz
Acute ischaemic stroke in brain areas contributing to male sexual function may impair erectile function depending on the lesion site. This study intended to determine associations between stroke-related erectile dysfunction and cerebral ischaemic lesion sites using voxel-based lesion mapping. In 52 males (mean age 60.5 ± 10.5 years) with first-ever ischaemic strokes, we assessed erectile function after and retrospectively 3 months prior to the stroke using scores of the 5-item International Index of Erectile Function-5 questionnaire...
April 18, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28430865/unmet-needs-in-the-first-line-treatment-of-follicular-lymphoma
#20
C Casulo, L Nastoupil, N H Fowler, J W Friedberg, C R Flowers
For the majority of patients with newly diagnosed follicular lymphoma (FL), current treatments, while not curative, allow for long remission durations. However, several important needs remain unaddressed. Studies have consistently shown that approximately 20% of patients with FL experience disease progression within 2 years of first-line treatment, and consequently have a 50% risk of death in 5 years. Better characterization of this group of patients at diagnosis may provide insight into those in need of alternate or intensive therapies, facilitate a precision approach to inform clinical trials, and allow for improved patient counseling...
April 18, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
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