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https://www.readbyqxmd.com/read/29667852/determination-of-the-position-of-the-knee-at-the-time-of-an-anterior-cruciate-ligament-rupture-for-male-versus-female-patients-by-an-analysis-of-bone-bruises
#1
Kwadwo A Owusu-Akyaw, Sophia Y Kim, Charles E Spritzer, Amber T Collins, Zoë A Englander, Gangadhar M Utturkar, William E Garrett, Louis E DeFrate
BACKGROUND: The incidence of anterior cruciate ligament (ACL) ruptures is 2 to 4 times higher in female athletes as compared with their male counterparts. As a result, a number of recent studies have addressed the hypothesis that female and male patients sustain ACL injuries via different mechanisms. The efficacy of prevention programs may be improved by a better understanding of whether there are differences in the injury mechanism between sexes. Hypothesis/Purpose: To compare knee positions at the time of a noncontact ACL injury between sexes...
April 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29666160/most-human-introns-are-recognized-via-multiple-and-tissue-specific-branchpoints
#2
Jose Mario Bello Pineda, Robert K Bradley
Although branchpoint recognition is an essential component of intron excision during the RNA splicing process, the branchpoint itself is frequently assumed to be a basal, rather than regulatory, sequence feature. However, this assumption has not been systematically tested due to the technical difficulty of identifying branchpoints and quantifying their usage. Here, we analyzed ∼1.31 trillion reads from 17,164 RNA sequencing data sets to demonstrate that almost all human introns contain multiple branchpoints...
April 17, 2018: Genes & Development
https://www.readbyqxmd.com/read/29666070/gata4-dependent-differentiation-of-c-kit-derived-endothelial-cells-underlies-artefactual-cardiomyocyte-regeneration-in-the-heart
#3
Bryan D Maliken, Onur Kanisicak, Jason Karch, Hadi Khalil, Xing Fu, Justin G Boyer, Vikram Prasad, Yi Zheng, Jeffery D Molkentin
Background -While c-Kit+ adult progenitor cells were initially reported to produce new cardiomyocytes in the heart, recent genetic evidence suggests that such events are exceedingly rare. However, to determine if these rare events represent true de novo cardiomyocyte formation we deleted the necessary cardiogenic transcription factors Gata4 and Gata6 from c-Kit-expressing cardiac progenitor cells (CPCs). Methods - Kit allele-dependent lineage tracing and fusion analysis was performed in mice following simultaneous Gata4 and Gata6 cell-type specific deletion to examine rates of putative de novo cardiomyocyte formation from c-Kit+ cells...
April 17, 2018: Circulation
https://www.readbyqxmd.com/read/29665824/inflammatory-back-pain-in-psoriatic-arthritis-is-significantly-more-responsive-to-corticosteroids-compared-to-back-pain-in-ankylosing-spondylitis-a-prospective-open-labelled-controlled-pilot-study
#4
Muhammad Haroon, Muddassar Ahmad, Muhammad Nouman Baig, Olivia Mason, John Rice, Oliver FitzGerald
BACKGROUND: The efficacy of corticosteroids in patients with psoriatic arthritis (PsA) and inflammatory back pain has not been studied to date. In this controlled trial, we aimed to investigate the comparative performance of corticosteroids in patients with active axial-PsA (AxPsA) versus those with active ankylosing spondylitis (AS). METHODS: Patients with AxPsA and AS (naïve to biologic therapies), who not only had clinically active disease, but also had bone marrow oedema on magnetic resonance imaging of the sacroiliac joints, were recruited...
April 17, 2018: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29665068/osteoporosis-and-hip-fracture-risk-from-routine-computed-tomography-scans-the-fracture-osteoporosis-and-ct-utilization-study-focus
#5
Annette L Adams, Heidi Fischer, David L Kopperdahl, David C Lee, Dennis M Black, Mary L Bouxsein, Shireen Fatemi, Sundeep Khosla, Eric S Orwoll, Ethel S Siris, Tony M Keaveny
Methods now exist for analyzing previously taken clinical computed tomography (CT) scans to measure a dual-energy X-ray absorptiometry (DXA)-equivalent bone mineral density (BMD) at the hip and a finite element analysis-derived femoral strength. We assessed the efficacy of this "biomechanical CT" (BCT) approach for identifying patients at high risk of incident hip fracture in a large clinical setting. Using a case-cohort design sampled from 111,694 women and men aged 65 or older who had a prior hip CT scan, a DXA within 3 years of the CT, and no prior hip fracture, we compared those with subsequent hip fracture (n = 1959) with randomly selected sex-stratified controls (n = 1979) and analyzed their CT scans blinded to all other data...
April 17, 2018: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29664867/short-and-long-term-outcomes-of-titanium-clip-ossiculoplasty
#6
Charissa N Kahue, Brendan P O'Connnell, Matthew M Dedmon, David S Haynes, Alejandro Rivas
OBJECTIVE: To report short (∼4 mo) and long-term (>12 mo) audiometric outcomes following ossiculoplasty using a titanium clip partial ossicular reconstruction prosthesis. METHODS: Case series at a single tertiary referral center reviewing 130 pediatric and adult patients with conductive hearing loss (CHL) secondary to chronic otitis media (n = 121, 93%) or traumatic ossicular disruption (n = 9, 7%) who underwent partial ossiculoplasty from January 2005 to December 2015 with the CliP prosthesis...
April 16, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29664855/restoration-of-the-patient-specific-anatomy-of-the-proximal-and-distal-parts-of-the-humerus-statistical-shape-modeling-versus-contralateral-registration-method
#7
Lazaros Vlachopoulos, Marcel Lüthi, Fabio Carrillo, Christian Gerber, Gábor Székely, Philipp Fürnstahl
BACKGROUND: In computer-assisted reconstructive surgeries, the contralateral anatomy is established as the best available reconstruction template. However, existing intra-individual bilateral differences or a pathological, contralateral humerus may limit the applicability of the method. The aim of the study was to evaluate whether a statistical shape model (SSM) has the potential to predict accurately the pretraumatic anatomy of the humerus from the posttraumatic condition. METHODS: Three-dimensional (3D) triangular surface models were extracted from the computed tomographic data of 100 paired cadaveric humeri without a pathological condition...
April 18, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29664513/vitiligo-type-cutaneous-manifestation-of-chronic-graft-versus-host-disease-case-report
#8
Karla Gálvez, Paula Muñoz, Valentina Vera, Claudio Arce
INTRODUCTION: Graft-versus-host disease (GVHD) is caused by a pathologic and destructive response of the organism as a result of the interaction between donor immunocompetent T lymphocytes and the recipient tisular antigens. It's considered the most serious complication of hematopoietic stem cell transplantation, most frequently described after bone marrow transplantation (BMT). The skin is usually the first and most commonly affected organ, in both acute and chronic, with a variable clinical spectrum of presentation...
February 2018: Revista Chilena de Pediatría
https://www.readbyqxmd.com/read/29664112/efficacy-of-d-red-blood-cell-transfusion-and-rituximab-therapy-in-autoimmune-hemolytic-anemia-with-anti-d-and-panreactive-autoantibodies-arising-after-hematopoietic-stem-cell-transplant
#9
Keiji Minakawa, Hitoshi Ohto, Hiroyasu Yasuda, Shunichi Saito, Kinuyo Kawabata, Kazuei Ogawa, Kenneth E Nollet, Kazuhiko Ikeda
BACKGROUND: Autoimmune hemolytic anemia (AIHA) is caused by autoantibodies to red blood cells (RBCs), which can be panreactive and/or specific to Rh/other blood group antigens. We report a severe case of AIHA after bone marrow transplantation (BMT) due to autoanti-D triggered by reactivation of Epstein-Barr virus (EBV) infection. A combined strategy of D- RBC transfusion and administration of anti-CD20 monoclonal antibody (MoAb) resolved the hemolysis. CASE REPORT: A 33-year-old male underwent allogeneic BMT from an ABO-identical and HLA-matched unrelated male donor...
April 17, 2018: Transfusion
https://www.readbyqxmd.com/read/29662744/postoperative-complications-associated-with-rhbmp2-use-in-posterior-posterolateral-lumbar-fusion
#10
Nabil Esmail, Zorica Buser, Jeremiah R Cohen, Darrel S Brodke, Hans-Joerg Meisel, Jong-Beom Park, Jim A Youssef, Jeffrey C Wang, S Tim Yoon
Study Design: Retrospective database review. Objective: Posterior/posterolateral lumbar fusion (PLF) is an effective treatment for a variety of spinal disorders; however, variations in surgical technique have different complication profiles. The aim of our study was to quantify the frequency of various complications in patients undergoing PLF with and without human recombinant bone morphogenetic protein 2 (rhBMP2). Methods: We queried the orthopedic subset of the Medicare database (PearlDiver) between 2005 and 2011 for patients undergoing PLF procedures with and without rhBMP2...
April 2018: Global Spine Journal
https://www.readbyqxmd.com/read/29662541/cabozantinib-in-the-treatment-of-advanced-renal-cell-carcinoma-in-adults-following-prior-vascular-endothelial-growth-factor-targeted-therapy-clinical-trial-evidence-and-experience
#11
REVIEW
Susanne Osanto, Tom van der Hulle
Cabozantinib is an oral multitargeted tyrosine kinase inhibitor (TKI) that potently inhibits MET and AXL, both associated with poor prognosis in renal cell carcinoma (RCC), next to vascular endothelial growth factor receptor 2, KIT, FLT3 and RET. Chronic treatment with vascular endothelial growth factor receptor (VEGFR)-targeting sunitinib upregulates MET and AXL in RCC, indicating that cabozantinib may be particularly effective in patients with advanced RCC whose disease progressed on prior VEGFR-targeted treatment...
March 2018: Therapeutic Advances in Urology
https://www.readbyqxmd.com/read/29661746/effects-of-oral-vitamin-d-3-supplementation-in-stage-3-chronic-kidney-disease-subjects-insulin-resistance-syndrome-and-hormonal-disturb-interactions
#12
Amina Tahar, Faiza Zerdoumi, Messaoud Saidani, Lakhdar Griene, Elhadj-Ahmed Koceir
The 1-25-hydroxyvitamine D (1-25OHD) or calcitriol deficiency in chronic kidney disease (CKD) patients was associated with increases vascular calcification risk, nephrons reduction, bone deficit and cardiovascular mortality by atherosclerosis. The objective of this study was to investigate the pleiotropic effects of 200.000 IU (D200 group) every 3 months versus 30.000 IU (D30 group) every month dose vitamin D supplementation in stage 3 CKD patients. A cohort of 132 adult subjects was randomized into 2 groups according to dose vitamin D supplementation in deficient subjects (25OHD <50 nmol/L or <20 ng/mL)...
April 16, 2018: Annales de Biologie Clinique
https://www.readbyqxmd.com/read/29661229/can-arthroplasty-stem-influence-outcome-casino-a-randomized-controlled-equivalence-trial-of-125-mm-versus-150-mm-exeter-v40-stems-in-total-hip-arthroplasty
#13
David F Hamilton, Nicholas E Ohly, Paul Gaston
BACKGROUND: The use of shorter length femoral stems during total hip arthroplasty has been suggested to accommodate wider patient femoral geometry and offer maximal bone preservation. However, cemented short-stem designs may increase the risk of varus stem malalignment and influence patient outcomes. METHODS/DESIGN: CASINO is a multi-centre randomised equivalence trial that will recruit 220 patients undergoing total hip arthroplasty for osteoarthritis at two NHS hospitals in Scotland...
April 16, 2018: Trials
https://www.readbyqxmd.com/read/29661208/unmanipulated-haploidentical-in-comparison-with-matched-unrelated-donor-stem-cell-transplantation-in-patients-60-years-and-older-with-acute-myeloid-leukemia-a-comparative-study-on-behalf-of-the-alwp-of-the-ebmt
#14
Nicole Santoro, Myriam Labopin, Federica Giannotti, Gerard Ehninger, Dietger Niederwieser, Arne Brecht, Matthias Stelljes, Nicolaus Kröger, Herman Einsele, Matthias Eder, Michael Hallek, Bertram Glass, Jürgen Finke, Fabio Ciceri, Mohamad Mohty, Annalisa Ruggeri, Arnon Nagler
BACKGROUND: Acute myeloid leukemia (AML) is both more common and with more biologically aggressive phenotype in the elderly. Allogenic stem cell transplantation (allo-SCT) is the best treatment option in fit patients. Either HLA-matched unrelated donor (MUD) or haploidentical (Haplo) donor are possible alternative for patients in need. METHODS: We retrospectively compared non-T-cell-depleted Haplo (n = 250) to 10/10 MUD (n = 2589) in AML patients ≥ 60 years...
April 16, 2018: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/29661111/anatomic-total-shoulder-arthroplasty-with-posterior-capsular-plication-versus-reverse-shoulder-arthroplasty-in-patients-with-biconcave-glenoids-a-matched-cohort-study
#15
Eduard Alentorn-Geli, Nathan R Wanderman, Andrew T Assenmacher, John W Sperling, Robert H Cofield, Joaquín Sánchez-Sotelo
PURPOSE: To compare the outcomes of total shoulder arthroplasty (TSA) with posterior capsule plication (PCP) and reverse shoulder arthroplasty (RSA) in patients with primary osteoarthritis, posterior subluxation, and bone loss (Walch B2). PATIENTS AND METHODS: All shoulders undergoing anatomic TSA with PCP were retrospectively identified (group 1, G1) and compared to shoulders undergoing RSA (group 2, G2) for Walch B2 osteoarthritis. There were 15 patients in G1 (mean (SD) age and follow-up of 70...
May 2018: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/29657482/functional-and-radiological-outcome-in-management-of-compound-tibia-diaphyseal-fracture-with-ao-monolateral-fixator-versus-limb-reconstruction-system
#16
Hitesh J Mangukiya, Neetin P Mahajan, Eknath D Pawar, Aakash Mane, Jitsen Manna
Introduction: Tibia being the most common fractured long bone represents 36.7% of all long bone fractures in adults with open fracture comprises 23.5% of all tibial shaft fracture. The lack of the muscular covering over anteromedial aspect of the tibia and poor blood supply predispose open tibial fractures to a 10-20 fold increased risk of developing infection than open fracture in any other anatomical areas and a nonunion rate as high as 28% has been reported in the literature. Methods: We did a prospective study at our institute from 2014-2016 comprising 40 patients with compound tibia diaphyseal fracture managed with AO monolateral external fixator (Group 1) (n = 20) and Limb reconstruction system (Group 2) (n = 20) as primary and definitive tool...
March 2018: Journal of Orthopaedics
https://www.readbyqxmd.com/read/29656494/oxidized-ldl-phagocytosis-during-foam-cell-formation-in-atherosclerotic-plaques-relies-on-a-pld2-cd36-functional-interdependence
#17
Ramya Ganesan, Karen M Henkels, Lucile E Wrenshall, Yasunori Kanaho, Gilbert Di Paolo, Michael A Frohman, Julian Gomez-Cambronero
The uptake of cholesterol carried by low-density lipoprotein (LDL) is tightly controlled in the body. Macrophages are not well suited to counteract the cellular consequences of excess cholesterol leading to their transformation into "foam cells," an early step in vascular plaque formation. We have uncovered and characterized a novel mechanism involving phospholipase D (PLD) in foam cell formation. Utilizing bone marrow-derived macrophages from genetically PLD deficient mice, we demonstrate that PLD2 (but not PLD1)-null macrophages cannot fully phagocytose aggregated oxidized LDL (Agg-Ox-LDL), which was phenocopied with a PLD2-selective inhibitor...
April 14, 2018: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29655532/evaluation-of-different-therapeutic-carnoy-s-formulations-on-hard-human-tissues-a-raman-microspectroscopy-microhardness-and-scanning-electron-microscopy-study
#18
Francisco Samuel Rodrigues Carvalho, Victor Pinheiro Feitosa, Paulo Goberlânio de Barros Silva, Eduardo Costa Studart Soares, Thyciana Rodrigues Ribeiro, Cristiane Sá Roriz Fonteles, Fábio Wildson Gurgel Costa
PURPOSE: To evaluate different therapeutic Carnoy's solution formulations on hard human tissues. MATERIALS AND METHODS: An in vitro study was performed with human teeth (n = 36) and bone fragments (n = 18), randomly divided into two experimental groups (Group I = Carnoy solution with chloroform; Group II = Carnoy solution without chloroform) and a control group (saline solution). The groups were subdivided into pre-conditioning, post-conditioning, and post-conditioning with saline washing...
February 21, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29652784/a-prospective-randomized-multicenter-study-comparing-silicated-calcium-phosphate-versus-bmp-2-synthetic-bone-graft-in-posterolateral-instrumented-lumbar-fusion-for-degenerative-spinal-disorders
#19
Marc Coughlan, Mark Davies, Adriaan K Mostert, Dharmin Nanda, Paul C Willems, Geoffrey Rosenberg, Richard Ferch
STUDY DESIGN: A prospective, Phase IV, multicenter, randomized study. OBJECTIVE: To compare vertebral fusion success rates following posterolateral fusion ((PLF)/posterolateral intertransverse fusion (PITF)) surgery. The surgical procedure combined posterior lumbar interbody fusion (PLIF) and PLF with internal fixation over one or two levels using silicated calcium phosphate (SiCaP) or bone morphogenetic protein (BMP)-2 as graft material in patients with a degenerative disorder of the lumbar spine...
April 12, 2018: Spine
https://www.readbyqxmd.com/read/29650363/chemotherapy-versus-chemoradiotherapy-after-surgery-and-preoperative-chemotherapy-for-resectable-gastric-cancer-critics-an-international-open-label-randomised-phase-3-trial
#20
Annemieke Cats, Edwin P M Jansen, Nicole C T van Grieken, Karolina Sikorska, Pehr Lind, Marianne Nordsmark, Elma Meershoek-Klein Kranenbarg, Henk Boot, Anouk K Trip, H A Maurits Swellengrebel, Hanneke W M van Laarhoven, Hein Putter, Johanna W van Sandick, Mark I van Berge Henegouwen, Henk H Hartgrink, Harm van Tinteren, Cornelis J H van de Velde, Marcel Verheij
BACKGROUND: Both perioperative chemotherapy and postoperative chemoradiotherapy improve survival in patients with resectable gastric cancer from Europe and North America. To our knowledge, these treatment strategies have not been investigated in a head to head comparison. We aimed to compare perioperative chemotherapy with preoperative chemotherapy and postoperative chemoradiotherapy in patients with resectable gastric adenocarcinoma. METHODS: In this investigator-initiated, open-label, randomised phase 3 trial, we enrolled patients aged 18 years or older who had stage IB- IVA resectable gastric or gastro-oesophageal adenocarcinoma (as defined by the American Joint Committee on Cancer, sixth edition), with a WHO performance status of 0 or 1, and adequate cardiac, bone marrow, liver, and kidney function...
April 9, 2018: Lancet Oncology
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