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https://www.readbyqxmd.com/read/29916770/investigation-of-subdural-electrode-displacement-in-invasive-epilepsy-surgery-workup-using-neuronavigation-and-intraoperative-mri
#1
Bjoern Sommer, Stefan Rampp, Arnd Doerfler, Hermann Stefan, Hajo M Hamer, Michael Buchfelder, Karl Roessler
OBJECTIVES: One of the main obstacles of electrode implantation in epilepsy surgery is the electrode shift between implantation and the day of explantation. We evaluated this possible electrode displacement using intraoperative MRI (iopMRI) data and CT/MRI reconstruction. METHODS: Thirteen patients (nine female, four male, median age 26 ± 9.4 years) suffering from drug-resistant epilepsy were examined. After implantation, the position of subdural electrodes was evaluated by 3...
June 19, 2018: Neurological Research
https://www.readbyqxmd.com/read/29913433/temporal-and-volumetric-denoising-via-quantile-sparse-image-prior
#2
Franziska Schirrmacher, Thomas Köhler, Jürgen Endres, Tobias Lindenberger, Lennart Husvogt, James G Fujimoto, Joachim Hornegger, Arnd Dörfler, Philip Hoelter, Andreas K Maier
This paper introduces an universal and structure-preserving regularization term, called quantile sparse image (QuaSI) prior. The prior is suitable for denoising images from various medical imaging modalities. We demonstrate its effectiveness on volumetric optical coherence tomography (OCT) and computed tomography (CT) data, which show different noise and image characteristics. OCT offers high-resolution scans of the human retina but is inherently impaired by speckle noise. CT on the other hand has a lower resolution and shows high-frequency noise...
June 6, 2018: Medical Image Analysis
https://www.readbyqxmd.com/read/29912566/cyclosporine-a-loaded-nanocarriers-for-topical-treatment-of-murine-experimental-autoimmune-uveoretinitis
#3
Maren Kasper, Doris Gabriel, Michael Möller, Dirk Bauer, Lena Wildschütz, Herve Courthion, Marta Rodriguez-Aller, Martin Busch, Michael R R Böhm, Karin Loser, Solon Thanos, Robert Gurny, Arnd Heiligenhaus
In the present study, tissue distribution and the therapeutic effect of topically applied cyclosporine A (CsA)-loaded methoxy-poly(ethylene-glycol)-hexyl substituted poly(lactic acid) (mPEGhexPLA) nanocarriers (ApidSOL) on experimental autoimmune uveitis (EAU) were investigated. The CsA-loaded mPEGhexPLA nanocarrier was tolerated well locally and showed no signs of immediate toxicity after repeated topical application in mice with EAU. Upon unilateral CsA treatment, CsA accumulated predominantly in the corneal and sclera-choroidal tissue of the treated eye and in lymph nodes (LN)...
June 18, 2018: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29879191/investigation-of-lateral-geniculate-nucleus-volume-and-diffusion-tensor-imaging-in-patients-with-normal-tension-glaucoma-using-7-tesla-magnetic-resonance-imaging
#4
Manuel A Schmidt, Michael Knott, Robin Heidemann, Georg Michelson, Tobias Kober, Arnd Dörfler, Tobias Engelhorn
BACKGROUND: There is evidence that glaucoma is a neurodegenerative disease involving the whole visual pathway. We prospectively examined potential benefits of volumetry of the lateral geniculate nucleus (LGN) and diffusion tensor imaging (DTI) using a new 7T scanner. METHODS: 20 patients with normal tension glaucoma and 16 control individuals were examined. LGN volume and fractional anisotropy (FA) of the optic tract (OT) and the optic radiation (OR) and their correlation with RNFL (retinal nerve fiber layer) thickness were analyzed...
2018: PloS One
https://www.readbyqxmd.com/read/29874694/spontane-lungenhernie-infolge-einer-rippenfraktur
#5
Arnd G U Felten, Weis Naziri
No abstract text is available yet for this article.
June 6, 2018: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/29860922/phase-iii-randomized-study-of-ribociclib-and-fulvestrant-in-hormone-receptor-positive-human-epidermal-growth-factor-receptor-2-negative-advanced-breast-cancer-monaleesa-3
#6
Dennis J Slamon, Patrick Neven, Stephen Chia, Peter A Fasching, Michelino De Laurentiis, Seock-Ah Im, Katarina Petrakova, Giulia Val Bianchi, Francisco J Esteva, Miguel Martín, Arnd Nusch, Gabe S Sonke, Luis De la Cruz-Merino, J Thaddeus Beck, Xavier Pivot, Gena Vidam, Yingbo Wang, Karen Rodriguez Lorenc, Michelle Miller, Tetiana Taran, Guy Jerusalem
Purpose This phase III study evaluated ribociclib plus fulvestrant in patients with hormone receptor-positive/human epidermal growth factor receptor 2-negative advanced breast cancer who were treatment naïve or had received up to one line of prior endocrine therapy in the advanced setting. Patients and Methods Patients were randomly assigned at a two-to-one ratio to ribociclib plus fulvestrant or placebo plus fulvestrant. The primary end point was locally assessed progression-free survival. Secondary end points included overall survival, overall response rate, and safety...
June 3, 2018: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/29849099/the-c-ebp%C3%AE-lip-isoform-rescues-loss-of-c-ebp%C3%AE-function-in-the-mouse
#7
Valérie Bégay, Christian Baumeier, Karin Zimmermann, Arnd Heuser, Achim Leutz
The transcription factor C/EBPβ regulates hematopoiesis, bone, liver, fat, and skin homeostasis, and female reproduction. C/EBPβ protein expression from its single transcript occurs by alternative in-frame translation initiation at consecutive start sites to generate three isoforms, two long (LAP*, LAP) and one truncated (LIP), with the same C-terminal bZip dimerization domain. The long C/EBPβ isoforms are considered gene activators, whereas the LIP isoform reportedly acts as a dominant-negative repressor...
May 30, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29848349/the-majority-of-patients-with-newly-diagnosed-juvenile-idiopathic-arthritis-achieve-a-health-related-quality-of-life-that-is-similar-to-that-of-healthy-peers-results-of-the-german-multicenter-inception-cohort-icon
#8
Miriam Listing, Kirsten Mönkemöller, Ina Liedmann, Martina Niewerth, Claudia Sengler, Joachim Listing, Dirk Foell, Arnd Heiligenhaus, Ariane Klein, Gerd Horneff, Gerd Ganser, Johannes-Peter Haas, Jens Klotsche, Kirsten Minden
BACKGROUND: Achieving the best possible health-related quality of life (HRQoL) for a patient is an important treatment goal in juvenile idiopathic arthritis (JIA). We investigated the 36-month trajectories of HRQoL in children with JIA compared with healthy peers and identified the predictors of an unfavorable HRQoL. METHODS: Patients with a recent JIA diagnosis were enrolled in the German inception cohort study ICON. As a peer group, friends of patients of the same age and sex were asked to cooperate...
May 30, 2018: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29845013/the-anatomy-of-the-human-medial-forebrain-bundle-ventral-tegmental-area-connections-to-reward-associated-subcortical-and-frontal-lobe-regions
#9
Volker Arnd Coenen, Lena Valerie Schumacher, Christoph Kaller, Thomas Eduard Schlaepfer, Peter Christoph Reinacher, Karl Egger, Horst Urbach, Marco Reisert
Introduction: Despite their importance in reward, motivation, and learning there is only sparse anatomical knowledge about the human medial forebrain bundle (MFB) and the connectivity of the ventral tegmental area (VTA). A thorough anatomical and microstructural description of the reward related PFC/OFC regions and their connection to the VTA - the superolateral branch of the MFB (slMFB) - is however mandatory to enable an interpretation of distinct therapeutic effects from different interventional treatment modalities in neuropsychiatric disorders (DBS, TMS etc...
2018: NeuroImage: Clinical
https://www.readbyqxmd.com/read/29795641/characterization-of-the-murine-orthotopic-adamantinomatous-craniopharyngioma-pdx-model-by-mri-in-correlation-with-histology
#10
Annett Hölsken, Marc Schwarz, Clarissa Gillmann, Christina Pfister, Michael Uder, Arnd Doerfler, Michael Buchfelder, Sven Schlaffer, Rudolf Fahlbusch, Rolf Buslei, Tobias Bäuerle
PURPOSE: Adamantinomatous craniopharyngiomas (ACP) as benign sellar brain tumors are challenging to treat. In order to develop robust in vivo drug testing methodology, the murine orthotopic craniopharyngioma model (PDX) was characterized by magnetic resonance imaging (MRI) and histology in xenografts from three patients (ACP1-3). METHODS: In ACP PDX, multiparametric MRI was conducted to assess morphologic characteristics such as contrast-enhancing tumor volume (CETV) as well as functional parameters from dynamic contrast-enhanced MRI (DCE-MRI) and diffusion-weighted imaging (DWI) including area-under-the-curve (AUC), peak enhancement (PE), time-to-peak (TTP) and apparent diffusion coefficient (ADC)...
2018: PloS One
https://www.readbyqxmd.com/read/29792372/sativex%C3%A2-as-add-on-therapy-vs-further-optimized-first-line-antispastics-savant-in-resistant-multiple-sclerosis-spasticity-a-double-blind-placebo-controlled-randomised-clinical-trial
#11
Jolana Markovà, Ute Essner, Bülent Akmaz, Marcella Marinelli, Christiane Trompke, Arnd Lentschat, Carlos Vila Silván
Purpose/aim: To evaluate the efficacy of tetrahydrocannabinol [THC]:cannabidiol [CBD] oromucosal spray (Sativex®) as add-on therapy to optimized standard antispasticity treatment in patients with moderate to severe multiple sclerosis (MS) spasticity. METHODS: Sativex as Add-on therapy Vs. further optimized first-line ANTispastics (SAVANT) was a two-phase trial. In Phase A, eligible patients received add-on THC:CBD spray for 4 weeks to identify initial responders (≥ 20% improvement from baseline in spasticity 0-10 numerical rating scale [NRS] score)...
May 24, 2018: International Journal of Neuroscience
https://www.readbyqxmd.com/read/29771573/increased-circulating-proinflammatory-t-lymphocytes-in-children-with-different-forms-of-anterior-uveitis-results-from-a-pilot-study
#12
Karoline Walscheid, Lisa Neekamp, Arnd Heiligenhaus, Toni Weinhage, Carsten Heinz, Dirk Foell
PURPOSE: To characterize peripheral blood T cells in juvenile idiopathic arthritis-associated uveitis (JIAU). METHODS: Blood samples were taken from children with JIAU (n = 18), JIA without ocular involvement (n = 11), idiopathic anterior uveitis (IAU, n = 12), and healthy controls (n = 11). Cells were stained for T cell surface markers, and intracellular cytokine staining was performed after cell stimulation and analyzed by flow cytometry. RESULTS: The Th1/Th2 ratio was increased in JIAU patients...
May 17, 2018: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/29766258/treatment-of-osteochondral-defects-with-a-combination-of-bone-grafting-and-amic-technique
#13
Arnd Hoburg, Julia Marcella Leitsch, Gerd Diederichs, Rex Lehnigk, Carsten Perka, Roland Becker, Sven Scheffler
INTRODUCTION: Osteochondral defects of the knee may cause functional impairment of young and sportively active patients. Different surgical treatment options have been proposed using either one or two step procedures. The aim of the current study was to evaluate mid-term outcomes of combined bone grafting with autologous matrix-associated chondrogenesis (AMIC) for the treatment of large osteochondral defects. MATERIALS AND METHODS: 15 Patients with osteochondrosis dissecans of the medial femoral condyle grade III or IV according to ICRS classification were treated with a single step surgical procedure combining bone grafting and the AMIC procedure...
May 15, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29739026/-cataracts-in-uveitis
#14
Arnd Heiligenhaus, Karoline Walscheid, Uwe Pleyer
Cataracts are a frequent complication of uveitis, and their management can be challenging. Operation planning requires knowledge of the cause (e.g., infectious versus noninfectious) and course of uveitis, including any intraocular comorbidities (e.g., macular edema). Preoperative patient selection is particularly important in uveitis patients to achieve good surgical results. Steroid-sparing disease-modifying antirheumatic drugs (DMARDs) can reduce the rate of postoperative complications and can improve visual acuity...
May 2018: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/29739025/-conventional-synthetic-disease-modifying-antirheumatic-drugs-dmards-for-the-treatment-of-non-infectious-uveitis
#15
Christoph Tappeiner, Thomas Rath, Arnd Heiligenhaus
The first-line therapy of uveitis normally consists of topical and/or systemic corticosteroid use. To achieve long-term ocular quiescence, to prevent uveitic secondary complications, to allow corticosteroid sparing and to avoid corticosteroid-related adverse effects, the application of immunosuppressive drugs (disease modifying antirheumatic drugs; DMARDs) is often necessary during the course of the disease. This article presents a structural overview of the most important conventional synthetic DMARDs, their indication, adverse events and interdisciplinary monitoring...
May 2018: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/29739024/-treatment-concepts-for-patients-with-non-infectious-uveitis
#16
Claus Cursiefen, Arnd Heiligenhaus
No abstract text is available yet for this article.
May 2018: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/29736728/effects-and-dose-response-relationship-of-balance-training-on-balance-performance-in-youth-a-systematic-review-and-meta-analysis
#17
REVIEW
Arnd Gebel, Melanie Lesinski, David G Behm, Urs Granacher
BACKGROUND: Effects and dose-response relationships of balance training on measures of balance are well-documented for healthy young and old adults. However, this has not been systematically studied in youth. OBJECTIVES: The objectives of this systematic review and meta-analysis were to quantify effects of balance training (BT) on measures of static and dynamic balance in healthy children and adolescents. Additionally, dose-response relations for BT modalities (e...
May 7, 2018: Sports Medicine
https://www.readbyqxmd.com/read/29732713/risk-factors-and-biomarkers-for-the-occurrence-of-uveitis-in-jia-data-from-the-inception-cohort-of-newly-diagnosed-patients-with-juvenile-idiopathic-arthritis-icon-jia-study
#18
Christoph Tappeiner, Jens Klotsche, Claudia Sengler, Martina Niewerth, Ina Liedmann, Karoline Walscheid, Miha Lavric, Dirk Foell, Kirsten Minden, Arnd Heiligenhaus
PURPOSE: To analyze the prognostic value of demographic, clinical, and therapeutic factors and laboratory biomarkers, and to assess their role in predicting uveitis occurrence in patients with JIA. METHODS: Patients with JIA were enrolled within the first year after JIA diagnosis. Demographic and clinical parameters were documented. Serum samples were collected at study enrollment, at 3-month follow-up visits within the first year, and then 6-monthly. A multivariable Cox regression analysis was performed to evaluate the impact of demographic, clinical, laboratory, and therapeutic parameters on uveitis onset...
May 6, 2018: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29718366/intratumoral-heterogeneity-of-oxygen-metabolism-and-neovascularization-uncovers-two-survival-relevant-subgroups-of-idh1-wild-type-glioblastoma
#19
Andreas Stadlbauer, Max Zimmermann, Arnd Doerfler, Stefan Oberndorfer, Michael Buchfelder, Roland Coras, Melitta Kitzwögerer, Karl Roessler
Background: The intratumoral heterogeneity of oxygen metabolism in combination with variable patterns of neovascularization (NV) as well as reprogramming of energy metabolism affects the landscape of tumor microenvironments (TMEs) in glioblastoma. Knowledge of the hypoxic and perivascular niches within the TME is essential for understanding treatment failure. Methods: Fifty-two patients with untreated glioblastoma (IDH1 wildtype) were examined with a physiological MRI protocol including a multiparametric quantitative blood-oxygen-level-dependent (qBOLD) approach and vascular architecture mapping (VAM)...
April 28, 2018: Neuro-oncology
https://www.readbyqxmd.com/read/29675026/multiplex-cytokine-analysis-of-aqueous-humor-in-juvenile-idiopathic-arthritis-associated-anterior-uveitis-with-or-without-secondary-glaucoma
#20
Dirk Bauer, Maren Kasper, Karoline Walscheid, Jörg M Koch, Philipp S Müther, Bernd Kirchhof, Arnd Heiligenhaus, Carsten Heinz
Patients with juvenile idiopathic arthritis often develop chronic anterior uveitis (JIAU). JIAU patients possess a particularly high risk for developing secondary glaucoma when inflammatory inactivity has been achieved. By using multiplex bead assay analysis, we assessed levels of pro- and anti-inflammatory cytokines, chemokines, or metalloproteinases in the aqueous humor (AH) of patients with clinically inactive JIAU with (JIAUwG) or without secondary glaucoma (JIAUwoG), or from patients with senile cataract as controls...
2018: Frontiers in Immunology
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