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https://www.readbyqxmd.com/read/28820301/translabyrinthine-microsurgical-resection-of-small-vestibular-schwannomas
#1
Marc S Schwartz, Gregory P Lekovic, Mia E Miller, William H Slattery, Eric P Wilkinson
OBJECTIVE Translabyrinthine resection is one of a number of treatment options available to patients with vestibular schwannomas. Though this procedure is hearing destructive, the authors have noted excellent clinical outcomes for patients with small tumors. The authors review their experience at a tertiary acoustic neuroma referral center in using the translabyrinthine approach to resect small vestibular schwannomas. All operations were performed by a surgical team consisting of a single neurosurgeon and 1 of 7 neurotologists...
August 18, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28818318/sex-and-gender-differences-in-thromboprophylactic-treatment-of-patients-with-atrial-fibrillation-after-the-introduction-of-non-vitamin-k-oral-anticoagulants
#2
Desirée Loikas, Tomas Forslund, Björn Wettermark, Karin Schenck-Gustafsson, Paul Hjemdahl, Mia von Euler
To examine sex differences in thromboprophylaxis in patients with atrial fibrillation before and after the introduction of non-vitamin K oral anticoagulants, we performed a cross-sectional registry study based on anonymized individual-level patient data of all individuals with a diagnosis of nonvalvular atrial fibrillation (International Classification of Diseases, Tenth Revision code I48) in the region of Stockholm, Sweden (2.2 million inhabitants), in 2011 and 2015, respectively. Thromboprophylaxis improved considerably during the period...
July 21, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28818208/catecholamine-dependent-%C3%AE-adrenergic-signaling-in-a-pluripotent-stem-cell-model%C3%A2-of-takotsubo-cardiomyopathy
#3
Thomas Borchert, Daniela Hübscher, Celina I Guessoum, Tuan-Dinh D Lam, Jelena R Ghadri, Isabel N Schellinger, Malte Tiburcy, Norman Y Liaw, Yun Li, Jan Haas, Samuel Sossalla, Mia A Huber, Lukas Cyganek, Claudius Jacobshagen, Ralf Dressel, Uwe Raaz, Viacheslav O Nikolaev, Kaomei Guan, Holger Thiele, Benjamin Meder, Bernd Wollnik, Wolfram-Hubertus Zimmermann, Thomas F Lüscher, Gerd Hasenfuss, Christian Templin, Katrin Streckfuss-Bömeke
BACKGROUND: Takotsubo syndrome (TTS) is characterized by an acute left ventricular dysfunction and is associated with life-threating complications in the acute phase. The underlying disease mechanism in TTS is still unknown. A genetic basis has been suggested to be involved in the pathogenesis. OBJECTIVES: The aims of the study were to establish an in vitro induced pluripotent stem cell (iPSC) model of TTS, to test the hypothesis of altered β-adrenergic signaling in TTS iPSC-cardiomyocytes (CMs), and to explore whether genetic susceptibility underlies the pathophysiology of TTS...
August 22, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28815752/rapidly-progressive-intravascular-primary-effusion-lymphoma-in-an-hiv-positive-renal-transplant-recipient
#4
Owen Cain, Adrian Yoong, Graham Lipkin, Mia Huengsberg, Jim Murray, Zbigniew Rudzki, Bindu Vydianath
We describe the clinical and post-mortem findings of a case of rapidly progressive, ultimately fatal primary effusion lymphoma (PEL) arising in an HIV-positive man two years after renal transplantation. Disseminated multi-organ involvement associated with a peculiar intravascular pattern of growth, as seen in this case, has only been reported once previously. This is also, to our knowledge, the first detailed description of a lymphoma arising post-transplant in an HIV-positive patient. This article is protected by copyright...
August 16, 2017: Histopathology
https://www.readbyqxmd.com/read/28814788/synthesis-of-saccharumoside-b-analogue-with-potential-of-antiproliferative-and-pro-apoptotic-activities
#5
Srinuvasarao Rayavarapu, Nagendra Sastry Yarla, Sunanda Kumari Kadiri, Anupam Bishayee, Siddaiah Vidavalur, Ramu Tadikonda, Mahaboob Basha, Vijaya Rao Pidugu, Kaladhar S V G K Dowluru, Dhananjaya Bhadrapura Lakappa, Mohammad A Kamal, Ghulam Md Ashraf, Vadim V Tarasov, Vladimir N Chubarev, Sergey G Klochkov, George E Barreto, Sergey O Bachurin, Gjumrakch Aliev
A new series of phenolic glycoside esters, saccharumoside-B and its analogs (9b-9n, 10) have been synthesized by the Koenigs-Knorr reaction. Antiproliferative activities of the compounds (9b-9n, 10) were evaluated on various cancer cell lines including, MCF-7 breast, HL-60 leukemia, MIA PaCa-2 pancreatic, DU145 prostate, HeLa cervical and CaCo-2 colon, as well as normal human MCF10A mammary epithelial and human peripheral blood mononuclear cells (PBMC) by MTT assay. Compounds (9b-9n, 10) exhibited considerable antiproliferative effects against cancer cells with IC50 range of 4...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28814504/osm1-facilitates-the-transfer-of-electrons-from-erv1-to-fumarate-in-the-redox-regulated-import-pathway-in-the-mitochondrial-intermembrane-space
#6
Sonya E Neal, Deepa V Dabir, Juwina Wijaya, Cennyana Boon, Carla M Koehler
Prokaryotes have aerobic and anaerobic electron acceptors for oxidative folding of periplasmic proteins. The mitochondrial intermembrane space has an analogous pathway with the oxidoreductase Mia40 and sulfhydryl oxidase Erv1, termed the MIA pathway. The aerobic electron acceptors include oxygen and cytochrome c, but an acceptor that can function under anaerobic conditions has not been identified. Here we show that the fumarate reductase Osm1, which facilitates electron transfer from fumarate to succinate, fills this gap as a new electron acceptor...
August 16, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28814336/risk-behaviour-determinants-among-people-who-inject-drugs-in-stockholm-sweden-over-a-10-year-period-from-2002-to-2012
#7
Niklas Karlsson, Michele Santacatterina, Kerstin Käll, Maria Hägerstrand, Susanne Wallin, Torsten Berglund, Anna Mia Ekström
BACKGROUND: People who inject drugs (PWID) frequently engage in injection risk behaviours exposing them to blood-borne infections. Understanding the underlying causes that drive various types and levels of risk behaviours is important to better target preventive interventions. METHODS: A total of 2150 PWID in Swedish remand prisons were interviewed between 2002 and 2012. Questions on socio-demographic and drug-related variables were asked in relation to the following outcomes: Having shared injection drug solution and having lent out or having received already used drug injection equipment within a 12 month recall period...
August 16, 2017: Harm Reduction Journal
https://www.readbyqxmd.com/read/28810909/a-multi-center-randomized-controlled-open-label-trial-evaluating-the-effects-of-eosinophil-guided-corticosteroid-sparing-therapy-in-hospitalised-patients-with-copd-exacerbations-the-cortico-steroid-reduction-in-copd-cortico-cop-study-protocol
#8
Pradeesh Sivapalan, Mia Moberg, Josefin Eklöf, Julie Janner, Jørgen Vestbo, Rasmus Rude Laub, Andrea Browatzki, Karin Armbruster, Jon Torgny Wilcke, Niels Seersholm, Ulla Møller Weinreich, Ingrid Louise Titlestad, Helle Frost Andreassen, Charlotte Suppli Ulrik, Uffe Bødtger, Thyge Lynghøj Nielsen, Ejvind Frausing Hansen, Jens Ulrik Stæhr Jensen
BACKGROUND: The most commonly applied treatment for acute exacerbations of chronic obstructive pulmonary disease (AECOPD) is a 5-day course of high-dose systemic corticosteroids. However, this treatment has not been shown to reduce mortality and can potentially have serious side effects. Recent research has shown that, presumably, only a subgroup of COPD patients identifieable by blood eosinophil count benefit from a rescue course of prednisolone. By applying a biomarker-guided strategy, the aim of this study is to determine whether it is possible to reduce the use of systemic corticosteroids in AECOPD without influencing the outcome...
August 15, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28808884/outcomes-of-laparoscopic-hiatal-hernia-repair-in-nine-bariatric-patients-with-prior-sleeve-gastrectomy
#9
Francisco Igor B Macedo, Mia Mowzoon, Vijay K Mittal, Mubashir Sabir
BACKGROUND: Laparoscopic sleeve gastrectomy (LSG) may exacerbate gastroesophageal reflux disease (GERD) in patients with a hiatal hernia (HH). Surgical repair may be needed, however prior LSG precludes standard HH repair with fundoplication. METHODS: We retrospectively reviewed our experience with bariatric patients with prior LSG undergoing laparoscopic HH repair from August 2010 to July 2016. Patient demographics and outcomes including mortality, length of stay (LOS), readmission rates, reoperation, and complications were described...
August 14, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28806175/point-of-care-ultrasound-facilitated-detection-of-femoral-occlusive-septic-emboli-during-mitral-valve-surgery-a-case-report
#10
Melissa L Bellomy, Susan Eagle, Mias Pretorius, Ben R Barton, Yafen Liang
Acute lower extremity ischemia from septic emboli is a surgical emergency. Timely diagnosis and management are critical to improve patient outcome. However, traditional diagnostic modalities such as intraoperative angiogram are time-consuming, require special equipment and personnel, and introduce contrast exposure for critically ill patients. There are limited reports of utilization of point-of-care ultrasound to detect peripheral septic emboli. We present a case where femoral occlusive septic emboli were identified by point-of-care ultrasound after mitral valve replacement...
August 10, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28805448/stakeholders-views-on-data-sharing-in-multicenter-studies
#11
Kathleen M Mazor, Allison Richards, Mia Gallagher, David E Arterburn, Marsha A Raebel, W Benjamin Nowell, Jeffrey R Curtis, Andrea R Paolino, Sengwee Toh
AIM: To understand stakeholders' views on data sharing in multicenter comparative effectiveness research studies and the value of privacy-protecting methods. MATERIALS & METHODS: Semistructured interviews with five US stakeholder groups. RESULTS: We completed 11 interviews, involving patients (n = 15), researchers (n = 10), Institutional Review Board and regulatory staff (n = 3), multicenter research governance experts (n = 2) and healthcare system leaders (n = 4)...
August 14, 2017: Journal of Comparative Effectiveness Research
https://www.readbyqxmd.com/read/28805133/the-shape-of-things-to-come-in-speech-production-visual-form-interference-during-lexical-access
#12
Greig I de Zubicaray, Mia McLean, Frank Oppermann, Aidan Hegarty, Katie McMahon, Jörg D Jescheniak
Naming a picture is slower in categorically related compared to unrelated contexts, an effect termed semantic interference. This effect has informed the development of all contemporary models of lexical access in speech production. However, category members typically share visual features, so semantic interference might in part reflect this confound. Surprisingly little work has addressed this issue, and the relative absence of evidence for visual form interference has been proposed to be problematic for production models implementing competitive lexical selection mechanisms...
August 13, 2017: Quarterly Journal of Experimental Psychology: QJEP
https://www.readbyqxmd.com/read/28801717/vitamin-b6-is-essential-for-serine-de-novo-biosynthesis
#13
Rúben J Ramos, Mia L Pras-Raves, Johan Gerrits, Maria van der Ham, Marcel Willemsen, Hubertus Prinsen, Boudewijn Burgering, Judith J Jans, Nanda M Verhoeven-Duif
Pyridoxal 5'-phosphate (PLP), the metabolically active form of vitamin B6, plays an essential role in brain metabolism as a cofactor in numerous enzyme reactions. PLP deficiency in brain, either genetic or acquired, results in severe drug-resistant seizures that respond to vitamin B6 supplementation. The pathogenesis of vitamin B6 deficiency is largely unknown. To shed more light on the metabolic consequences of vitamin B6 deficiency in brain, we performed untargeted metabolomics in vitamin B6-deprived Neuro-2a cells...
August 11, 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/28799289/prenatal-exposure-to-fever-is-associated-with-autism-spectrum-disorder-in-the-boston-birth-cohort
#14
Martha Brucato, Christine Ladd-Acosta, Mengying Li, Deanna Caruso, Xiumei Hong, Jamie Kaczaniuk, Elizabeth A Stuart, M Daniele Fallin, Xiaobin Wang
Autism spectrum disorder (ASD) is phenotypically and etiologically heterogeneous, with evidence for genetic and environmental contributions to disease risk. Research has focused on the prenatal period as a time where environmental exposures are likely to influence risk for ASD. Epidemiological studies have shown significant associations between prenatal exposure to maternal immune activation (MIA), caused by infections and fever, and ASD. However, due to differences in study design and exposure measurements no consistent patterns have emerged revealing specific times or type of MIA exposure that are most important to ASD risk...
August 11, 2017: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/28797325/plasmid-borne-colistin-resistance-gene-mcr-3-in-salmonella-isolates-from-human-infections-denmark-2009-17
#15
Eva Litrup, Kristoffer Kiil, Anette M Hammerum, Louise Roer, Eva M Nielsen, Mia Torpdahl
This report describes one Salmonella isolate harbouring both mcr-1 and mcr-3. We also found nine other Salmonella isolates positive for the plasmid-borne colistin resistance gene, mcr-3. The strains were isolated from patients in Denmark between 2009 and 2017 and five of the patients had travelled to Asia. In addition to mcr-3, all strains were found positive for blaTEM-1, strA, strB, sul2 and tet(A) or tet(B), and most strains were positive for blaCTX-M-55 and qnrS.
August 3, 2017: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
https://www.readbyqxmd.com/read/28796691/neonatal-outcomes-of-low-risk-late-preterm-twins-compared-with-late-preterm-singletons
#16
Shimrit Yaniv Salem, Mia Kibel, Elizabeth Asztalos, Arthur Zaltz, Jon Barrett, Nir Melamed
OBJECTIVE: To test the hypothesis that the risk of neonatal morbidity among late-preterm twins is similar to that of late-preterm singletons. METHODS: We conducted a retrospective cohort study of all women with twin or singleton pregnancy who gave birth during the late-preterm period in a single tertiary center between 2008 and 2015. Neonatal outcomes of low-risk, late-preterm twins were compared with those of low-risk, late-preterm singletons. The primary outcome was the same primary composite respiratory morbidity variable that was used in the randomized controlled trial of Gyamfi-Bannerman et al on the administration of antenatal corticosteroids during the late-preterm period...
August 4, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28795274/novel-gemcitabine-conjugated-albumin-nanoparticles-a-potential-strategy-to-enhance-drug-efficacy-in-pancreatic-cancer-treatment
#17
Varun Kushwah, Ashish Kumar Agrawal, Chander Parkash Dora, David Mallinson, Dimitrios A Lamprou, Ramesh C Gupta, Sanyog Jain
PURPOSE: The present study reports a novel conjugate of gemcitabine (GEM) with bovine serum albumin (BSA) and thereof nanoparticles (GEM-BSA NPs) to potentiate the therapeutic efficacy by altering physicochemical properties, improving cellular uptake and stability of GEM. METHODS: The synthesized GEM-BSA conjugate was extensively characterized by NMR, FTIR, MALDI-TOF and elemental analysis. Conjugation mediated changes in structural conformation and physicochemical properties were analysed by fluorescence, Raman and CD spectroscopy, DSC and contact angle analysis...
August 9, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28793056/effect-of-strontium-ranelate-on-pain-behavior-in-an-experimental-model-of-osteoarthritis
#18
T A Rodrigues, A J B Sampaio, I D P Nunes, M S S Cartágenes, J B S Garcia
Strontium ranelate (SrRan) is a drug usually prescribed to treat osteoporosis, with proven effects of decreasing the risk of fractures and an indication of reducing the progression of osteoarthritis (OA). This study aimed to investigate the effects of SrRan as either a prophylactic or a treatment drug, using an OA rat model to assess pain behavior. A monoiodoacetate (MIA)-induced knee joint OA model in Wistar rats was used. Thirty Wistar rats (both sexes, 60 days old) were distributed in five groups of 6 rats each: the control group, that received no intervention; a prophylactic group, that received oral administration of 25 mg·kg-1·day-1 of SrRan for 28 days before induction of OA; a group treated with 25 mg·kg-1·day-1 of SrRan for 28 days after OA induction; a group treated with 50 mg·kg-1·day-1 during 28 days after OA induction; and a group that received oral saline for 28 days after induction...
August 7, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28790154/ckm-glu83gly-is-associated-with-blunted-creatine-kinase-variation-but-not-with-myalgia
#19
Moneeza Kalhan Siddiqui, Abirami Veluchamy, Cyrielle Maroteau, Roger Tavendale, Fiona Carr, Ewan Pearson, Helen Colhoun, Andrew D Morris, Jacob George, Alexander Doney, Munir Pirmohamed, Ana Alfirevic, Mia Wadelius, Anke H Maitland van der Zee, Paul M Ridker, Daniel I Chasman, Colin N A Palmer
BACKGROUND: To test the association of a recently reported variant in the creatine kinase (CK) muscle gene, CKM Glu83Gly (rs11559024) with constitutive creatine phosphokinase (CK) levels, CK variation, and inducibility. Given the diagnostic importance of CK in determining muscle damage, we tested the association of the variant with myalgia. METHODS AND RESULTS: Meta-analysis between longitudinal cohort GoDARTS (Genetics of Diabetes Audit and Research, Tayside Scotland), minor allele frequency (=0...
August 2017: Circulation. Cardiovascular Genetics
https://www.readbyqxmd.com/read/28789807/the-influence-of-the-ethane-1-2-diamine-ligand-on-the-activity-of-a-monofunctional-platinum-complex
#20
Marcus E Graziotto, Mia C Akerfeldt, Adam P Gunn, Kylie Yang, Mark V Somerville, Nicholas V Coleman, Blaine R Roberts, Trevor W Hambley, Elizabeth J New
The continued use of platinum-based chemotherapeutic drugs in the clinic mandates the need for further investigation of the biological activity of structural analogues of the clinically approved complexes. Of interest are monofunctional platinum(II) complexes, which bear only one labile ligand, for which it is believed that each complex binds to DNA only once. Pyriplatin ([PtCl(NH3)2(py)](+)) and enpyriplatin ([PtCl(en)(py)](+)) are both monofunctional platinum(II) complexes that bear a pyridine ligand and a labile chlorido ligand, differing in their cis‑ammine and ethane-1,2-diamine (en) ligands respectively...
July 29, 2017: Journal of Inorganic Biochemistry
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