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https://www.readbyqxmd.com/read/29454028/fabricating-3d-printed-orally-disintegrating-printlets-using-selective-laser-sintering
#1
Fabrizio Fina, Christine M Madla, Alvaro Goyanes, Jiaxin Zhang, Simon Gaisford, Abdul W Basit
Selective laser sintering (SLS) is a three-dimensional printing (3DP) technology employed to manufacture plastic, metallic or ceramic objects. The aim of this study was to demonstrate the feasibility of SLS to fabricating novel solid dosage forms with accelerated drug release properties, and with a view to create orally disintegrating formulations. Two polymers (hydroxypropyl methylcellulose (HPMC E5) and vinylpyrrolidone-vinyl acetate copolymer (Kollidon ® VA 64)) were separately mixed with 5% paracetamol (used as a model drug) and 3% Candurin ® gold sheen colorant; the powder mixes were subjected to SLS printing resulting in the manufacture of printlets (3DP tablets)...
February 14, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29454018/co-circulation-of-classic-and-novel-astrovirus-strains-in-patients-with-acute-gastroenteritis-in-germany
#2
Sonja Jacobsen, Marina Höhne, Andreas Mas Marques, Klara Beslmüller, C-Thomas Bock, Sandra Niendorf
OBJECTIVES: In order to analyze the molecular epidemiology of human astroviruses (HAstV) in Germany, a retrospective long term study was performed to characterize circulating human astrovirus in patients with acute gastroenteritis in Germany. METHODS: A total of 2877 stool samples, collected between January 2010 and December 2015 from sporadic cases and outbreaks of acute gastroenteritis were retrospectively analyzed for astrovirus. A two step PCR algorithm was developed and used to identify and characterize human astrovirus infections...
February 14, 2018: Journal of Infection
https://www.readbyqxmd.com/read/29452902/retina-dose-as-a-predictor-for-visual-acuity-loss-in-106-ru-eye-plaque-brachytherapy-of-uveal-melanomas
#3
Gerd Heilemann, Lukas Fetty, Matthias Blaickner, Nicole Nesvacil, Martin Zehetmayer, Dietmar Georg, Roman Dunavoelgyi
BACKGROUND AND PURPOSE: To evaluate the retina dose as a risk factor associated with loss of visual acuity (VA) in 106 Ru plaque brachytherapy. MATERIAL/METHODS: 45 patients receiving 106 Ru plaques brachytherapy (median follow-up 29.5 months) were included in this study. An in-house developed treatment planning system with Monte Carlo based dose calculation was used to perform treatment planning and dose calculation. Risk factors associated with loss of VA were evaluated using the Cox proportional hazards models, Kaplan-Meier estimates and Pearson correlation coefficients...
February 13, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29452766/traumatic-stress-and-accelerated-dna-methylation-age-a-meta-analysis
#4
Erika J Wolf, Hannah Maniates, Nicole Nugent, Adam X Maihofer, Don Armstrong, Andrew Ratanatharathorn, Allison E Ashley-Koch, Melanie Garrett, Nathan A Kimbrel, Adriana Lori, Va Mid-Atlantic Mirecc Workgroup, Allison E Aiello, Dewleen G Baker, Jean C Beckham, Marco P Boks, Sandro Galea, Elbert Geuze, Michael A Hauser, Ronald C Kessler, Karestan C Koenen, Mark W Miller, Kerry J Ressler, Victoria Risbrough, Bart P F Rutten, Murray B Stein, Robert J Ursano, Eric Vermetten, Christiaan H Vinkers, Monica Uddin, Alicia K Smith, Caroline M Nievergelt, Mark W Logue
BACKGROUND: Recent studies examining the association between posttraumatic stress disorder (PTSD) and accelerated aging, as defined by DNA methylation-based estimates of cellular age that exceed chronological age, have yielded mixed results. METHODS: We conducted a meta-analysis of trauma exposure and PTSD diagnosis and symptom severity in association with accelerated DNA methylation age using data from 9 cohorts contributing to the Psychiatric Genomics Consortium PTSD Epigenetics Workgroup (combined N = 2186)...
December 27, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29452692/prognostic-significance-of-complex-ventricular-arrhythmias-complicating-st-segment-elevation-myocardial-infarction
#5
Tomasz Podolecki, Radoslaw Lenarczyk, Jacek Kowalczyk, Ewa Jedrzejczyk-Patej, Piotr Chodor, Michal Mazurek, Pawel Francuz, Witold Streb, Katarzyna Mitrega, Zbigniew Kalarus
The aim of the study was to assess the clinical significance of complex ventricular arrhythmias (VAs) (sustained ventricular tachycardia [sVT] and ventricular fibrillation [VF]) in patients with ST-segment elevation myocardial infarction (STEMI) depending on timing of arrhythmia. We analyzed 4,363 consecutive patients with STEMI treated invasively between 2004 and 2014. The median follow-up was 69.6 months (range: 0 to 139.8 months). The study population was divided into 2 main groups; VA group encompassed 476 patients (10...
January 12, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29452324/microsurgical-clipping-of-intracranial-aneurysms-assisted-by-neurophysiological-monitoring-microvascular-flow-probe-and-icg-va-outcomes-and-intraoperative-data-on-a-multimodal-strategy
#6
Alessandro Della Puppa, Marta Rossetto, Francesco Volpin, Oriela Rustemi, Alberto Grego, Alessandra Gherardi, Riccardo Ortolan, Francesco Causin, Marina Munari, Renato Scienza
OBJECTVE: The aim of this study is to report data on a multimodal monitoring strategy based on the intraoperative use of neurophysiological monitoring, flowmetry by microflow probe and intraoperative indocyanine green-videoangiography (ICG-VA) during microsurgical clipping of intracranial aneurysms. METHODS: This retrospective analysis was performed on 85 consecutive patients undergoing clipping of 96 intracranial aneurysms with the present monitoring strategy. Patient outcomes were evaluated by assessing rate of aneurysm exclusion and post-operative occurrence of ischemic injury...
February 13, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29452255/radiofrequency-ablation-of-premature-ventricular-contractions-originating-from-uncommon-sites-of-right-ventricle
#7
Krishna Kumar Mohanan Nair, Narayanan Namboodiri, Arun Gopalakrishnan, Ajitkumar Valaparambil
Premature Ventricular Contraction (PVC)/ventricular tachycardia (VT) with left bundle branch block (LBBB) morphology and inferior axis has been described classically to originate from the right ventricular outflow tract (RVOT). Some uncommon sites of idiopathic ventricular arrhythmia (VA) origins have been revealed including tricuspid annulus (TA) and right ventricular (RV) inflow free wall region. We present a series of two cases who have undergone electrophysiological study and successful radiofrequency ablation of frequent monomorphic PVCs with LBBB pattern originating from relatively uncommon sites of RV - TA and RV inflow free wall region...
February 13, 2018: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29452136/neuroprotective-effects-of-valproic-acid-on-brain-ischemia-are-related-to-its-hdac-and-gsk3-inhibitions
#8
Monalisa Ribeiro Silva, Alyne Oliveira Correia, Gabriel Cabral Alencar Dos Santos, Lucas Leimig Telles Parente, Keicy Parente de Siqueira, Danielly Gonçalves Sombra Lima, Jonathan Almeida Moura, Ana Elisa da Silva Ribeiro, Roberta Oliveira Costa, Daniel Luna Lucetti, Elaine Cristina Pereira Lucetti, Kelly Rose Tavares Neves, Glauce Socorro de Barros Viana
Valproic acid (VA) is an antiepileptic that is also used for the treatment of bipolar disorders. The objective was to evaluate the neuroprotective effects of VA on a brain ischemia model. The groups of male Wistar rats were: SO (sham-operated), ischemic and ischemic treated with VA (25, 50 and 100 mg/kg, p.o.). After anesthesia with ketamine and xilazine, the animals were subjected to clamping of carotid arteries (30 min) and reperfusion. Except for the carotid clamping, the SO group was submitted to the same procedure...
February 13, 2018: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/29451116/population-tailored-care-for-homeless-veterans-and-acute-care-use-cost-and-satisfaction-a-prospective-quasi-experimental-trial
#9
Thomas P O'Toole, Erin E Johnson, Matthew Borgia, Amy Noack, Jean Yoon, Elizabeth Gehlert, Jeanie Lo
INTRODUCTION: Although traditional patient-centered medical homes (PCMHs) are effective for patients with complex needs, it is unclear whether homeless-tailored PCMHs work better for homeless veterans. We examined the impact of enrollment in a Veterans Health Administration (VHA) homeless-tailored PCMH on health services use, cost, and satisfaction compared with enrollment in a traditional, nontailored PCMH. METHODS: We conducted a prospective, multicenter, quasi-experimental, single-blinded study at 2 VHA medical centers to assess health services use, cost, and satisfaction during 12 months among 2 groups of homeless veterans: 1) veterans receiving VHA homeless-tailored primary care (Homeless-Patient Aligned Care Team [H-PACT]) and 2) veterans receiving traditional primary care services (PACT)...
February 15, 2018: Preventing Chronic Disease
https://www.readbyqxmd.com/read/29450387/orbital-cellulitis-and-brain-abscess-rare-complications-of-maxillo-spheno-ethmoidal-rhinosinusitis
#10
Farah Constantin, Patricia-Alexandra Niculescu, Oana Petre, Daniel Balasa, Alexandru Tunas, Ioana Rusu, Mihai Lupascu, Cristiana Orodel
Sinus infections can be complicated by ocular infections and, in late phases, by brain parenchyma infection. The article debates the case of a 12-year-old patient suffering from paucisymptomatic maxillo-spheno-ethmoidal rhinosinusitis, which was later complicated by orbital cellulitis, ending with the development of a brain abscess. The treatment is complex, initially targeting the source of the infection through draining the collection by middle maxillary antrostomy and anterior posterior ethmoidectomy, then the ablation of the brain abscess and postoperatively with prolonged massive antibiotherapy...
April 2017: Romanian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29450383/eyesight-quality-and-computer-vision-syndrome
#11
Camelia Margareta Bogdănici, Diana Elena Săndulache, Corina Andreea Nechita
The aim of the study was to analyze the effects that gadgets have on eyesight quality. A prospective observational study was conducted from January to July 2016, on 60 people who were divided into two groups: Group 1 - 30 middle school pupils with a mean age of 11.9 ± 1.86 and Group 2 - 30 patients evaluated in the Ophthalmology Clinic, "Sf. Spiridon" Hospital, Iași, with a mean age of 21.36 ± 7.16 years. The clinical parameters observed were the following: visual acuity (VA), objective refraction, binocular vision (BV), fusional amplitude (FA), Schirmer's test...
April 2017: Romanian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29447939/the-cardiovascular-robustness-hypothesis-unmasking-young-adults-hidden-risk-for-premature-cardiovascular-death
#12
Lutz E Kraushaar, Alexander Dressel
An undetected high risk for premature death of cardiovascular disease (CVD) among individuals with low-to-moderate risk factor levels is an acknowledged obstacle to CVD prevention. In this paper, we present the hypothesis that the vasculature's robustness against risk factor load will complement conventional risk factor models as a novel stratifier of risk. Figuratively speaking, mortality risk prediction without robustness scoring is akin to predicting the breaking risk of a lake's ice sheet considering load only while disregarding the sheet's bearing strength...
March 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29444962/multiple-anomalies-in-the-origin-and-course-of-vertebral-arteries-and-aberrant-right-subclavian-artery-in-a-child-with-moyamoya-syndrome
#13
Pınar Beyaz, Nadia Khan, Gerasimos Baltsavias
Here we report, for the first time, a combination of five-vessel aortic arch, anomalous origin of the right vertebral artery (VA) from the common carotid artery (CCA), an aberrant right subclavian artery (SCA), and bilateral symmetrical segmental agenesis of VAs.In this case report, we present a patient with moyamoya syndrome (MMS) and Down syndrome (DS) who has bilateral symmetrical segmental agenesis of VAs, left VA originating from aortic arch and anomalous origin of right VA arising from CCA in combination with an aberrant right SCA...
February 14, 2018: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29444671/tailoring-an-educational-program-on-the-ahrq-patient-safety-indicators-to-meet-stakeholder-needs-lessons-learned-in-the-va
#14
Marlena H Shin, Peter E Rivard, Michael Shwartz, Ann Borzecki, Enzo Yaksic, Kelly Stolzmann, Lisa Zubkoff, Amy K Rosen
BACKGROUND: Given that patient safety measures are increasingly used for public reporting and pay-for performance, it is important for stakeholders to understand how to use these measures for improvement. The Agency for Healthcare Research and Quality (AHRQ) Patient Safety Indicators (PSIs) are one particularly visible set of measures that are now used primarily for public reporting and pay-for-performance among both private sector and Veterans Health Administration (VA) hospitals. This trend generates a strong need for stakeholders to understand how to interpret and use the PSIs for quality improvement (QI)...
February 14, 2018: BMC Health Services Research
https://www.readbyqxmd.com/read/29444603/safety-of-combined-treatment-with-monoclonal-antibodies-and-viscum-album-l-preparations
#15
Friedemann Schad, Jan Axtner, Matthias Kröz, Harald Matthes, Megan L Steele
Combination strategies involving chemotherapy and monoclonal antibodies (mAb) are commonly used in attempts to produce better clinical outcomes. This practice has led to new and ongoing toxicities that may lead to reductions in dose or noncompliance, limiting the effectiveness of treatment. Viscum album L (VA) preparations are widely used in Europe as additive therapy and have been associated with reduced chemotherapy-related adverse reactions and increased health-related quality of life. Concomitant VA therapy might also reduce toxicity related to mAb...
March 2018: Integrative Cancer Therapies
https://www.readbyqxmd.com/read/29443779/cerebral-infarction-due-to-malposition-of-cervical-pedicle-screw-a-case-report
#16
Jun Zhang, Rongming Xu, Zheng Li, Weibin Zha
RATIONALE: Malposition of cervical pedicle screw (CPS) has a risk of vertebral artery (VA) injury which sometimes may cause unexpected and catastrophic outcome. A rare case of delayed onset of cerebral infarction caused by malposition of CPS was reported. PATIENT CONCERNS: A 23-year-old man who underwent a posterior cervical reduction and fusion of C4-5 using CPS fixation and allograft for cervical spine injury is presented. The patient suffered progressively weakness and numbness for both of upper and lower extremities 1 day after the operation...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29443357/low-energy-stereotactic-radiotherapy-for-treatment-of-exudative-age-related-macular-degeneration-in-a-treat-and-extend-regimen
#17
Katja Hatz, Frank Zimmermann, Dimitrios Kardamakis, Emmanouil Lazaridis, Cengiz Türksever, Jörg Binder, Alexandros Papachristofilou, Christian Prünte
BACKGROUND AND OBJECTIVE: To evaluate the effectiveness and safety of low-energy stereotactic radiotherapy (SRT) combined with anti-vascular endothelial growth factor (VEGF) treatment following a treat-and-extend regimen (TER) in wet age-related macular degeneration (AMD). PATIENTS AND METHODS: Before/after SRT, the authors compared retrospective consecutive case series of 50 patients requiring frequent anti-VEGF treatment (every 4 or 6 weeks) in wet AMD, treated with a single session of SRT and TER (same manner pre/post-SRT)...
February 1, 2018: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/29440824/extracorporeal-membrane-oxygenation-in-pediatric-cardiac-surgery-a-retrospective-review-of-trends-and-outcomes-in-scotland
#18
Maziar Khorsandi, Mark Davidson, Omar Bouamra, Andrew McLean, Kenneth MacArthur, Ida Torrance, Gillian Wylie, Ed Peng, Mark Danton
Introduction: Around 3.2%-8.4% of patients receive venoarterial (VA) extracorporeal membrane oxygenation (ECMO) support after pediatric cardiac surgery. The desired outcome is "bridge-to-recovery" in most cases. There is no universally agreed protocol, and given the associated costs and complications rates, the decisions as of when and when not to institute VA ECMO are largely empirical. Methods: A retrospective review of the ECMO database at the Scottish Pediatric Cardiac Services (SPCS) was undertaken...
January 2018: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/29440186/long-term-outcome-of-substrate-modification-in-ablation-of-post-myocardial-infarction-ventricular-tachycardia
#19
Michael Wolf, Frédéric Sacher, Hubert Cochet, Takeshi Kitamura, Masateru Takigawa, Seigo Yamashita, Konstantinos Vlachos, Ghassen Cheniti, Antonio Frontera, Ruairidh Martin, Nathaniel Thompson, Grégoire Massoullié, Anna Lam, Claire Martin, Florent Collot, Josselin Duchateau, Thomas Pambrun, Arnaud Denis, Nicolas Derval, Mélèze Hocini, Michel Haïssaguerre, Pierre Jaïs
BACKGROUND: Long-term results of substrate modification for ablation of ventricular tachycardia (VT) have not been reported. We report long-term outcomes of substrate elimination targeting local abnormal ventricular activities (LAVA) for post-myocardial infarction VT. METHODS AND RESULTS: One hundred fifty-nine consecutive patients undergoing first ablation were included (65±11 years, 92% implantable cardioverter defibrillators, 54% storms, and 73% appropriate shocks)...
February 2018: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29439828/consistent-long-term-therapy-of-neovascular-age-related-macular-degeneration-managed-by-50-or-more-anti-vegf-injections-using-a-treat-extend-stop-protocol
#20
Sean D Adrean, Siyang Chaili, Hema Ramkumar, Ash Pirouz, Scott Grant
PURPOSE: To examine the clinical results for patients with neovascular age-related macular degeneration (nAMD) who were managed with a treat-extend-stop (TES) protocol and received 50 or more injections of anti-vascular endothelial growth factor (VEGF) agents. DESIGN: Retrospective case study. PARTICIPANTS: Data for patients from a private retina practice meeting the following criteria were included: diagnosis of nAMD and having received 50 or more intravitreal injections of anti-VEGF agents...
February 10, 2018: Ophthalmology
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