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https://www.readbyqxmd.com/read/28645892/meis1-effects-on-motor-phenotypes-and-the-sensorimotor-system-in-mice
#1
Aaro V Salminen, Lillian Garrett, Barbara Schormair, Jan Rozman, Florian Giesert, Kristina M Niedermeier, Lore Becker, Birgit Rathkolb, Ildikó Rácz, Martin Klingenspor, Thomas Klopstock, Eckhard Wolf, Andreas Zimmer, Valérie Gailus-Durner, Miguel Torres, Helmut Fuchs, Martin Hrabě de Angelis, Wolfgang Wurst, Sabine M Hölter, Juliane Winkelmann
MEIS1 is a developmental transcription factor linked to restless legs syndrome (RLS) in genome-wide association studies. RLS is a movement disorder leading to severe sleep reduction and with significant impact on the quality-of-life of patients. In genome-wide association studies, MEIS1 has consistently been the gene with the highest effect size and functional studies suggest a disease-relevant downregulation. Therefore, haploinsufficiency of Meis1 could be the most potential system for modeling RLS in animals...
June 23, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28645691/maternal-exposure-to-a-mixture-of-persistent-organic-pollutants-pops-affects-testis-histology-epididymal-sperm-count-and-induces-sperm-dna-fragmentation-in-mice
#2
Abdolrahman Khezri, Birgitte Lindeman, Anette K Krogenæs, Hanne F Berntsen, Karin E Zimmer, Erik Ropstad
Persistent organic pollutants (POPs) are widespread throughout the environment and some are suspected to induce reproductive toxicity. As animals and humans are exposed to complex mixtures of POPs, it is reasonable to assess how such mixtures could interact with the reproductive system. Our aim is to investigate how maternal exposure to a mixture of 29 different persistent organic pollutants, formulated to mimic the relative POP levels in the food basket of the Scandinavian population, could alter reproductive endpoints...
June 20, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28642382/a-global-brain-state-underlies-c-elegans-sleep-behavior
#3
Annika L A Nichols, Tomáš Eichler, Richard Latham, Manuel Zimmer
How the brain effectively switches between and maintains global states, such as sleep and wakefulness, is not yet understood. We used brainwide functional imaging at single-cell resolution to show that during the developmental stage of lethargus, the Caenorhabditis elegans brain is predisposed to global quiescence, characterized by systemic down-regulation of neuronal activity. Only a few specific neurons are exempt from this effect. In the absence of external arousing cues, this quiescent brain state arises by the convergence of neuronal activities toward a fixed-point attractor embedded in an otherwise dynamic neural state space...
June 23, 2017: Science
https://www.readbyqxmd.com/read/28642092/chemokine-ccl17-is-expressed-by-dendritic-cells-in-the-cns-during-experimental-autoimmune-encephalomyelitis-and-promotes-pathogenesis-of-disease
#4
Christina Ruland, Hannes Renken, Ivan Kuzmanov, Arezoo Fattahi Mehr, Kathrin Schwarte, Manuela Cerina, Alexander Herrmann, David-Marian Otte, Andreas Zimmer, Nicholas Schwab, Sven G Meuth, Volker Arolt, Luisa Klotz, Irmgard Förster, Stefanie Scheu, Judith Alferink
The CC chemokine ligand 17 (CCL17) and its cognate CC chemokine receptor 4 (CCR4) are known to control leukocyte migration, maintenance of TH17 cells, and regulatory T cell (Treg) expansion in vivo. In this study we characterized the expression and functional role of CCL17 in the pathogenesis of experimental autoimmune encephalomyelitis (EAE). Using a CCL17/EGFP reporter mouse model, we could show that CCL17 expression in the CNS can be found in a subset of classical dendritic cells (DCs) that immigrate into the CNS during the effector phase of MOG-induced EAE...
June 19, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28641917/complications-in-tissue-expansion-a-logistic-regression-analysis-for-risk-factors
#5
Christian Smolle, Alexandru Tuca, Paul Wurzer, Stephanie M Spendel, Abigail A Forbes, Stephan Spendel, Michael Schintler, Emir Haxhija, Katja Schwenzer-Zimmerer, Herwig Friedl, Lars-Peter Kamolz, Daryousch Parvizi
BACKGROUND: Tissue expansion is frequently used in reconstructive surgery. Although the surgical procedure is typically considered simple, reported complication rates of tissue expansions exceed 40%. There is little evidence concerning risk factors for complications in tissue expansion in body regions other than breast. The aim was to determine risk factors for complications in non-breast tissue expansion. METHODS: 34 patients treated with subcutaneous tissue expanders between 2005 and 2014 were analyzed...
June 19, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28641194/use-of-a-long-distally-fixed-intramedullary-stem-to-treat-a-periprosthetic-femoral-fracture-following-total-hip-arthroplasty-using-a-thrust-plate-hip-prosthesis-a-case-report
#6
Hiroyuki Hatanaka, Goro Motomura, Satoshi Ikemura, Kazuhiko Sonoda, Yusuke Kubo, Takeshi Utsunomiya, Takuaki Yamamoto, Yasuharu Nakashima
INTRODUCTION: The thrust plate hip prosthesis (TPP; Zimmer, Winterthur, Switzerland) is a hip prosthesis that is no longer in production. Few reports have focused on periprosthetic fractures following total hip arthroplasty (THA) with the use of a TPP. PRESENTATION OF CASE: We report a 57-year-old woman with a periprosthetic femoral fracture 13 years after THA with the use of a TPP. A plain radiograph showed a displaced subtrochanteric fracture of the right femur just below the distal tip of the lateral plate without implant loosening...
June 13, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28638411/regular-dental-visits-influence-on-health-related-quality-of-life-in-1-607-patients-with-oral-squamous-cell-carcinoma
#7
Simon Spalthoff, Henrik Holtmann, Gertrud Krüskemper, Rüdiger Zimmerer, Jörg Handschel, Nils-Claudius Gellrich, Philipp Jehn
BACKGROUND: The incidence of oral squamous cell carcinoma (OSCC) is in the top 10 of all cancer entities. Regular oral examinations by dentists play an important role in oral cancer prevention. METHODS: Patients with OSCC (n = 1,607) and physicians (n = 1,489) completed questionnaires during the DÖSAK Rehab Study. The psychosocial and functional factors collected in these questionnaires were assessed in the present study. We compared patients who visited their dentist at least once a year (group A) with those who visited their dentist less than once a year (group B)...
2017: International Journal of Dentistry
https://www.readbyqxmd.com/read/28630135/inhibition-of-the-cardiac-fibroblast-enriched-lncrna-meg3-prevents-cardiac-fibrosis-and-diastolic-dysfunction
#8
Maria-Teresa Piccoli, Shashi Gupta, Janika Viereck, Ariana Foinquinos, Sabine Samolovac, Freya Kramer, Ankita Garg, Janet Remke, Karina Zimmer, Sandor Batkai, Thomas Thum
Rationale: Cardiac fibroblasts (CFs) drive extracellular matrix (ECM) remodeling following pressure overload, leading to fibrosis and diastolic dysfunction. Recent studies described the role of long noncoding RNAs (lncRNAs) in cardiac pathologies. Nevertheless, detailed reports on lncRNAs regulating CF biology and describing their implication in cardiac remodeling are still missing. Objective: Here, we aimed at characterizing lncRNA expression in murine CFs following chronic pressure overload, in order to identify CF-enriched lncRNAs and investigate their function and contribution to cardiac fibrosis and diastolic dysfunction...
June 19, 2017: Circulation Research
https://www.readbyqxmd.com/read/28628877/remediation-of-groundwater-contaminated-with-arsenic-through-enhanced-natural-attenuation-batch-and-column-studies
#9
Saeedreza Hafeznezami, Amity G Zimmer-Faust, Dukwoo Jun, Megyn B Rugh, Heather L Haro, Austin Park, Jae Suh, Tina Najm, Matthew D Reynolds, James A Davis, Tarannom Parhizkar, Jennifer A Jay
Batch and column laboratory experiments were conducted on natural sediment and groundwater samples from a contaminated site in Maine, USA with the aim of lowering the dissolved arsenate [As(V)] concentrations through chemical enhancement of natural attenuation capacity. In batch factorial experiments, two levels of treatment for three parameters (pH, Ca, and Fe) were studied at different levels of phosphate to evaluate their impact on As(V) solubility. Results illustrated that lowering pH, adding Ca, and adding Fe significantly increased the sorption capacity of sediments...
June 12, 2017: Water Research
https://www.readbyqxmd.com/read/28620750/high-precision-radiotherapy-for-meningiomas-long-term-results-and-patient-reported-outcome-pro
#10
Kerstin A Kessel, Hanna Fischer, Markus Oechnser, Claus Zimmer, Bernhard Meyer, Stephanie E Combs
OBJECTIVE: To evaluate long-term outcome after high-precision radiotherapy (RT) of meningioma patients in terms of survival and side effects. METHODS: We analyzed 275 meningioma cases: 147 low-grade and 43 high-grade meningiomas (WHO II: n = 40, III: n = 3). In all, 85 patients had no pathologically confirmed histology but were determined as low-grade based on multimodal imaging. Surgery was performed in 183 cases. RT was delivered as either radiosurgery (RS, n = 16), fractionated stereotactic radiotherapy (FSRT, n = 241), or intensity-modulated radiation therapy (IMRT, n = 18)...
June 15, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28617135/influence-of-personalized-exercise-recommendations-during-rehabilitation-on-the-sustainability-of-objectively-measured-physical-activity-levels-fatigue-and-fatigue-related-biomarkers-in-patients-with-breast-cancer
#11
Philipp Zimmer, Freerk T Baumann, Max Oberste, Joachim Schmitt, Niklas Joisten, Philipp Hartig, Alexander Schenk, Rafaela Kuhn, Wilhelm Bloch, Monika Reuss-Borst
PURPOSE: Only one-third of patients with breast cancer reach the recommended activity level of 15 to 25 MET h/wk. The aim of this study was to determine the influence of personalized exercise recommendations during rehabilitation on patients' physical activity level, fatigue, and self-perceived cognitive function as well as on side effect-associated biomarkers. METHODS: Total metabolic rate, physical activity level, mean MET and steps, fatigue, self-perceived cognitive functioning , and biomarkers (C-reactive protein [CRP], interleukin 6, macrophage migration inhibiting factor [MIF], tumor necrosis factor [TNF]-α, brain-derived neurotrophic factor [BDNF], insulin-like growth factor 1 [IGF1]) were assessed in 60 patients with breast cancer in the aftercare phase before ( t0) and 8 months after ( t1) the intervention...
June 1, 2017: Integrative Cancer Therapies
https://www.readbyqxmd.com/read/28616821/re-irradiation-after-gross-total-resection-of-recurrent-glioblastoma-spatial-pattern-of-recurrence-and-a-review-of-the-literature-as-a-basis-for-target-volume-definition
#12
Christoph Straube, Greeshma Elpula, Jens Gempt, Julia Gerhardt, Stefanie Bette, Claus Zimmer, Friederike Schmidt-Graf, Bernhard Meyer, Stephanie E Combs
BACKGROUND: Currently, patients with gross total resection (GTR) of recurrent glioblastoma (rGBM) undergo adjuvant chemotherapy or are followed up until progression. Re-irradiation, as one of the most effective treatments in macroscopic rGBM, is withheld in this situation, as uncertainties about the pattern of re-recurrence, the target volume, and also the efficacy of early re-irradiation after GTR exist. METHODS: Imaging and clinical data from 26 consecutive patients with GTR of rGBM were analyzed...
June 14, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28607170/oxytocin-and-serotonin-brain-mechanisms-in-the-non-human-primate
#13
Lefevre Arthur, Richard Nathalie, Jazayeri Mina, Beuriat Pierre-Aurélien, Fieux Sylvain, Zimmer Luc, Duhamel Jean-René, Sirigu Angela
Oxytocin is increasingly studied for its therapeutic potential in psychiatric disorders which are associated with the deregulation of several neurotransmission systems. Studies in rodents demonstrated that the interaction between oxytocin (OT) and serotonin (5-HT) is critical for several aspects of social behavior. Using PET-scan in humans we have recently found that 5-HT 1A receptor (5-HT1AR) function is modified after intra-nasal oxytocin intake. However, the underlying mechanism between OT and 5-HT remains unclear...
June 12, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28604511/incidence-and-risk-factors-for-perianal-disease-in-pediatric-crohn-s-disease-patients-followed-in-cedata-gpge-registry
#14
Annecarin Brückner, Katharina J Werkstetter, Jan de Laffolie, Claudia Wendt, Christine Prell, Tanja Weidenhausen, Klaus P Zimmer, Sibylle Koletzko
BACKGROUND AND AIMS: Perianal disease (PD) with fistula and/or abscess formation is a severe complication in Crohn's disease (CD). We examined prevalence, incidence and risk factors for PD development in a pediatric CD cohort. METHODS: CD patients from the prospective, multi-center registry for inflammatory bowel disease from Germany and Austria (CEDATA-GPGE) were included if diagnosed ≤18 years of age, registered within three months after diagnosis, and having at least two follow-up visits within the first year of registration...
June 9, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28603746/preclinical-evaluation-of-a-lentiviral-vector-for-huntingtin-silencing
#15
Karine Cambon, Virginie Zimmer, Sylvain Martineau, Marie-Claude Gaillard, Margot Jarrige, Aurore Bugi, Jana Miniarikova, Maria Rey, Raymonde Hassig, Noelle Dufour, Gwenaelle Auregan, Philippe Hantraye, Anselme L Perrier, Nicole Déglon
Huntington's disease (HD) is an autosomal dominant neurodegenerative disorder resulting from a polyglutamine expansion in the huntingtin (HTT) protein. There is currently no cure for this disease, but recent studies suggest that RNAi to downregulate the expression of both normal and mutant HTT is a promising therapeutic approach. We previously developed a small hairpin RNA (shRNA), vectorized in an HIV-1-derived lentiviral vector (LV), that reduced pathology in an HD rodent model. Here, we modified this vector for preclinical development by using a tat-independent third-generation LV (pCCL) backbone and removing the original reporter genes...
June 16, 2017: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/28603037/species-boundaries-in-the-astragalus-cusickii-complex-delimited-using-molecular-phylogenetic-techniques
#16
J C Zimmers, M Thomas, L Yang, A Bombarely, M M Mancuso, M F Wojciechowski, J F Smith
Understanding the source of phenotypic variability is a challenge in the biological sciences. Variation in phenotypes is the result of variation in the genetics and environment the organism experiences, but elucidating the relative contribution of these two parameters can pose problems, especially in the field of systematics. Systematists are challenged to classify biological diversity into groups that share common ancestry. Phenotypic variation can be useful to demonstrate common ancestry, but only when the primary contributor to the variation is under strong genetic control, and thus heritable...
June 8, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/28601901/hirschsprung-s-disease-in-twins-a-systematic-review-and-meta-analysis
#17
D Henderson, J Zimmer, H Nakamura, Prem Puri
AIM OF THE STUDY: Hirschsprung's disease (HSCR) is known to occur in families. The reported overall incidence of familial cases is 7.6%, with a higher incidence of 15-21% in total colonic aganglionosis and 50% in the rare total intestinal aganglionosis. HSCR is extremely rare in twins. The aim of this study was to systematically analyse the patterns of HSCR in twins published in the literature. METHODS: Electronic databases Pubmed and Medline were screened for relevant articles using the keywords "Hirschsprung's disease", "aganglionosis", "twins", "monozygotic", and "dizygotic"...
June 10, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/28595656/ros-production-induced-by-braf-inhibitor-treatment-rewires-metabolic-processes-affecting-cell-growth-of-melanoma-cells
#18
Giulia Cesi, Geoffroy Walbrecq, Andreas Zimmer, Stephanie Kreis, Claude Haan
BACKGROUND: Most melanoma patients with BRAF(V600E) positive tumors respond well to a combination of BRAF kinase and MEK inhibitors. However, some patients are intrinsically resistant while the majority of patients eventually develop drug resistance to the treatment. For patients insufficiently responding to BRAF and MEK inhibitors, there is an ongoing need for new treatment targets. Cellular metabolism is such a promising new target line: mutant BRAF(V600E) has been shown to affect the metabolism...
June 8, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28593060/fracture-of-the-tibial-baseplate-16-years-after-miller-galante-ii-total-knee-arthroplasty
#19
Kazuaki Mineta, Masahiko Okada, Soshi Matsumoto, Daisuke Hamada, Tomohiro Goto, Koichi Sairyo
We report a rare case of tibial baseplate fracture of Miller-Galante II (MG II) prosthesis. We examine the factors that may cause such late fracture and review the literature on radiographic analysis and retrieval studies. A 76-year-old woman, who had undergone bilateral MG II total knee arthroplasty due to rheumatoid arthritis 16 years earlier, presented to our department with a 3-month history of left knee pain. Plain radiographs revealed severe distortion of the medial tibial component. During revision knee arthroplasty, we observed severe metallosis in the knee joint, polyethylene insert deformation, and posteromedial coronal baseplate fracture...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28589166/elevated-glutamate-and-lactate-predict-brain-death-after-severe-head-trauma
#20
Marco A Stefani, Rafael Modkovski, Gisele Hansel, Eduardo R Zimmer, Afonso Kopczynski, Alexandre P Muller, Nathan R Strogulski, Marcelo S Rodolphi, Randhall K Carteri, André P Schmidt, Jean P Oses, Douglas H Smith, Luis V Portela
OBJECTIVE: Clinical neurological assessment is challenging for severe traumatic brain injury (TBI) patients in the acute setting. Waves of neurochemical abnormalities that follow TBI may serve as fluid biomarkers of neurological status. We assessed the cerebrospinal fluid (CSF) levels of glutamate, lactate, BDNF, and GDNF, to identify potential prognostic biomarkers of neurological outcome. METHODS: This cross-sectional study was carried out in a total of 20 consecutive patients (mean [SD] age, 29 [13] years; M/F, 9:1) with severe TBI Glasgow Coma Scale ≤ 8 and abnormal computed tomography scan on admission...
June 2017: Annals of Clinical and Translational Neurology
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