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https://www.readbyqxmd.com/read/28102287/crotalus-atrox-venom-preconditioning-increases-plasma-fibrinogen-and-reduces-perioperative-hemorrhage-in-a-rat-model-of-surgical-brain-injury
#1
Cherine H Kim, Devin W McBride, Ronak Raval, Prativa Sherchan, Karen L Hay, Eric C K Gren, Wayne Kelln, Tim Lekic, William K Hayes, Brian S Bull, Richard Applegate, Jiping Tang, John H Zhang
Perioperative bleeding is a potentially devastating complication in neurosurgical patients, and plasma fibrinogen concentration has been identified as a potential modifiable risk factor for perioperative bleeding. The aim of this study was to evaluate preconditioning with Crotalus atrox venom (Cv-PC) as potential preventive therapy for reducing perioperative hemorrhage in the rodent model of surgical brain injury (SBI). C. atrox venom contains snake venom metalloproteinases that cleave fibrinogen into fibrin split products without inducing clotting...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28099379/systemic-intraoperative-anticoagulation-during-arterial-injury-repair-implications-for-patency-and-bleeding
#2
Zoё Maher, Brian Frank, Noelle Saillant, Anna Goldenberg, Elizabeth Dauer, Joshua P Hazelton, Andrea Lubitz, Huaqing Zhao, Jeremy W Cannon, Mark J Seamon
BACKGROUND: The role of systemic intraoperative anticoagulation (SIAC) during surgical repair of major arterial injuries is controversial. Any potential improvement in arterial patency must be weighed against the risk of hemorrhage in these critically injured patients. We hypothesized that SIAC would increase arterial patency without increasing bleeding complications. METHODS: We conducted a multi-institution, retrospective cohort study of trauma patients with major vascular injury from 2005-2013 in 3 level I centers...
January 17, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28093479/paired-stimulation-for-spike-timing-dependent-plasticity-in-primate-sensorimotor-cortex
#3
Stephanie C Seeman, Brian J Mogen, Eberhard E Fetz, Steve I Perlmutter
: Classic studies in vitro have described spike-timing dependent plasticity (STDP) at a synapse: the connection from neuron A to neuron B is strengthened (or weakened) when A fires before (or after) B within an optimal time window. Accordingly, more recent in vivo works have demonstrated behavioral effects consistent with an STDP mechanism; however many relied on single-unit recordings. The ability to modify cortical connections becomes useful in the context of injury when connectivity, and associated behavior, is compromised...
January 16, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28088301/methocarbamol-use-is-associated-with-decreased-hospital-length-of-stay-in-trauma-patients-with-closed-rib-fractures
#4
Asad E Patanwala, Ohoud Aljuhani, Brian J Kopp, Brian L Erstad
BACKGROUND: The objective of this study was to evaluate the effect of methocarbamol on hospital length of stay in patients with closed rib fracture injuries. METHODS: This was a retrospective cohort study conducted in an academic medical center in the United States. Adult trauma patients, who sustained closed rib fractures, were included. Patients were categorized based on whether they received methocarbamol or not during admission. The primary outcome of interest was time to hospital discharge in days (i...
January 6, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28087165/radiographic-comparison-of-adolescent-athletes-with-elbow-osteochondritis-dissecans-to-ulnar-collateral-ligament-injuries-and-controls
#5
Brian C Lau, Nirav K Pandya
BACKGROUND: There are excellent data supporting recommendations to prevent elbow injuries (osteochondritis dissecans [OCD] and ulnar collateral ligament [UCL] injuries), such as pitch count and pitch type in baseball, but anatomic risk factors have not been thoroughly examined. This study aimed to evaluate radiographic measurements in adolescents with elbow OCD lesions or UCL injuries and controls. METHODS: We retrospectively identified adolescent patients between 2011 and 2016 with isolated capitellum OCD, UCL tear, or normal elbows based on magnetic resonance imaging...
January 10, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28086992/therapies-for-bruxism-a-systematic-review-and-network-meta-analysis-protocol
#6
Mauro Elias Mesko, Brian Hutton, Jovito Adiel Skupien, Rafael Sarkis-Onofre, David Moher, Tatiana Pereira-Cenci
BACKGROUND: Bruxism is a sleep disorder characterized by grinding and clenching of the teeth that may be related to irreversible tooth injuries. It is a prevalent condition occurring in up to 31% of adults. However, there is no definitive answer as to which of the many currently available treatments (including drug therapy, intramuscular injections, physiotherapy, biofeedback, kinesiotherapy, use of intraoral devices, or psychological therapy) is the best for the clinical management of the different manifestations of bruxism...
January 13, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28079681/internal-jugular-vein-compression-a-novel-approach-to-mitigate-blast-induced-hearing-injury
#7
Brian Sindelar, Michael Shinners, Sydney Sherman, Kevin Novak, Kristine Erickson, Vimal Patel, Paul Kubilis, David Smith, John Finan, Julian E Bailes
HYPOTHESIS: Internal jugular vein (IJV) compression before blast injury will lead to reduced risk of traumatic hearing injury following exposure to a blast injury. BACKGROUND: IJV compression and its effects on not only intracranial, but also intracochlear pressure may potentiate blast induced hearing injury, therefore, precluding its use as a prophylactic therapy for blast induced traumatic brain injury. METHODS: Twenty Sprague Dawley rats were exposed to a 17...
January 10, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28078377/advances-in-imaging-and-management-trends-of-traumatic-aortic-injuries
#8
Prashant Nagpal, Brian F Mullan, Indrani Sen, Sachin S Saboo, Ashish Khandelwal
Acute traumatic aortic injury (ATAI) is a life-threatening injury. CT is the imaging tool of choice, and the knowledge of direct and indirect signs of injury, grading system, and current management protocol helps the emergency radiologist to better identify and classify the injury and provide additional details that can impact management options. Newer dual-source CT technology with ultrafast acquisition speed has also influenced the appropriate protocol for imaging in patients with suspected ATAI. This review highlights the imaging protocol in patients with blunt trauma, CT appearance and grading systems of ATAI, management options, and the role of the multidisciplinary team in the management of these patients...
January 11, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28078075/a-design-method-for-fes-bone-health-therapy-in-sci
#9
Brian Andrews, James Shippen, Monica Armengol, Robin Gibbons, William Holderbaum, William Harwin
FES assisted activities such as standing, walking, cycling and rowing induce forces within the leg bones and have been proposed to reduce osteoporosis in spinal cord injury (SCI). However, details of the applied mechanical stimulus for osteogenesis is often not reported. Typically, comparisons of bone density results are made after costly and time consuming clinical trials. These studies have produced inconsistent results and are subject to sample size variations. Here we propose a design process that may be used to predict the clinical outcome based on biomechanical simulation and mechano-biology...
September 15, 2016: European Journal of Translational Myology
https://www.readbyqxmd.com/read/28074668/in-vivo-evidence-of-nephrotoxicity-and-altered-hepatic-function-in-rats-following-administration-of-diglycolic-acid-a-metabolite-of-diethylene-glycol
#10
Corie N Robinson, Brian Latimer, Fleurette Abreo, Kiera Broussard, Kenneth E McMartin
CONTEXT: Diglycolic acid (DGA) is one of the two primary metabolites of diethylene glycol (DEG). DEG is an industrial solvent that has been implicated in mass poisonings resulting from product misuse in the United States and worldwide, with the hallmark toxicity being acute kidney injury, hepatotoxicity, encephalopathy and peripheral neuropathy. Our laboratory has generated in-vitro evidence suggesting that DGA is the metabolite responsible for the proximal tubule necrosis and decreased kidney function observed following DEG ingestion...
January 11, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28074610/an-in%C3%A2-vitro-model-yields-importin-new-insights-into-chronic-traumatic-encephalopathy-damaged-astrocytes-stop-thrombospondin-to-the-injury-an-editorial-highlight-for-defective-synthesis-and-release-of-astrocytic-thrombospondin-1-mediates-the-neuronal-tdp-43
#11
EDITORIAL
Sausan M Jaber, Brian M Polster
Read the highlighted article 'Defective synthesis and release of astrocytic thrombospondin-1 mediates the neuronal TDP-43 proteinopathy, resulting in defects in neuronal integrity associated with chronic traumatic encephalopathy: in vitro studies' on doi: 10.1111/jnc.13867.
January 10, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28071988/braided-and-stacked-electrospun-nanofibrous-scaffolds-for-tendon-and-ligament-tissue-engineering
#12
Benjamin B Rothrauff, Brian B Lauro, Guang Yang, Richard E Debski, Volker Musahl, Rocky Tuan
Tendon and ligament injuries are a persistent orthopaedic challenge given their poor innate healing capacity. Non-woven electrospun nanofibrous scaffolds composed of polyesters have been used to mimic the mechanics and topographical cues of native tendons and ligaments. However, non-woven nanofibers have several limitations that prevent broader clinical application, including poor cell infiltration as well as tensile and suture-retention strengths that are inferior to native tissues. In this study, multilayered scaffolds of aligned electrospun nanofibers of two designs - stacked or braided - were fabricated...
January 10, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28069694/myocardial-tissue-engineering-with-cells-derived-from-human-induced-pluripotent-stem-cells-and-a-native-like-high-resolution-3-dimensionally-printed-scaffold
#13
Ling Gao, Molly Kupfer, Jangwook Jung, Libang Yang, Patrick Zhang, Yong Sie, Quyen Tran, Visar Ajeti, Brian Freeman, Vladimir Fast, Paul Campagnola, Brenda Ogle, Jianyi Zhang
RATIONALE: Conventional three-dimensional (3D) printing techniques cannot produce structures of the size at which individual cells interact. OBJECTIVE: Here, we used multiphoton-excited, 3-dimensional printing (MPE-3DP) to generate a native-like, extracellular matrix (ECM) scaffold with submicron resolution, and then seeded the scaffold with cardiomyocytes (CMs), smooth-muscle cells (SMCs), and endothelial cells (ECs) that had been differentiated from human induced-pluripotent stem cells (iPSCs) to generate a human, iPSC-derived cardiac muscle patch (hCMP), which was subsequently evaluated in a murine model of myocardial infarction (MI)...
January 9, 2017: Circulation Research
https://www.readbyqxmd.com/read/28063597/living-near-major-roads-and-the-incidence-of-dementia-parkinson-s-disease-and-multiple-sclerosis-a-population-based-cohort-study
#14
Hong Chen, Jeffrey C Kwong, Ray Copes, Karen Tu, Paul J Villeneuve, Aaron van Donkelaar, Perry Hystad, Randall V Martin, Brian J Murray, Barry Jessiman, Andrew S Wilton, Alexander Kopp, Richard T Burnett
BACKGROUND: Emerging evidence suggests that living near major roads might adversely affect cognition. However, little is known about its relationship with the incidence of dementia, Parkinson's disease, and multiple sclerosis. We aimed to investigate the association between residential proximity to major roadways and the incidence of these three neurological diseases in Ontario, Canada. METHODS: In this population-based cohort study, we assembled two population-based cohorts including all adults aged 20-50 years (about 4·4 million; multiple sclerosis cohort) and all adults aged 55-85 years (about 2·2 million; dementia or Parkinson's disease cohort) who resided in Ontario, Canada on April 1, 2001...
January 4, 2017: Lancet
https://www.readbyqxmd.com/read/28062569/inhibition-of-%C3%AE-v%C3%AE-5-integrin-attenuates-vascular-permeability-and-protects-against-renal-ischemia-reperfusion-injury
#15
Amy McCurley, Stella Alimperti, Silvia B Campos-Bilderback, Ruben M Sandoval, Jenna E Calvino, Taylor L Reynolds, Catherine Quigley, Joshua W Mugford, William J Polacheck, Ivan G Gomez, Jennifer Dovey, Graham Marsh, Angela Huang, Fang Qian, Paul H Weinreb, Brian M Dolinski, Shaun Moore, Jeremy S Duffield, Christopher S Chen, Bruce A Molitoris, Shelia M Violette, Michael A Crackower
Ischemia-reperfusion injury (IRI) is a leading cause of AKI. This common clinical complication lacks effective therapies and can lead to the development of CKD. The αvβ5 integrin may have an important role in acute injury, including septic shock and acute lung injury. To examine its function in AKI, we utilized a specific function-blocking antibody to inhibit αvβ5 in a rat model of renal IRI. Pretreatment with this anti-αvβ5 antibody significantly reduced serum creatinine levels, diminished renal damage detected by histopathologic evaluation, and decreased levels of injury biomarkers...
January 6, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28062099/the-trauma-registry-compared-to-all-patient-refined-diagnosis-groups-apr-drg
#16
Jodi Hackworth, Johanna Askegard-Giesmann, Thomas Rouse, Brian Benneyworth
BACKGROUND: Literature has shown there are significant differences between administrative databases and clinical registry data. Our objective was to compare the identification of trauma patients using All Patient Refined Diagnosis Related Groups (APR-DRG) as compared to the Trauma Registry and estimate the effects of those discrepancies on utilization. METHODS: Admitted pediatric patients from 1/2012-12/2013 were abstracted from the trauma registry. The patients were linked to corresponding administrative data using the Pediatric Health Information System database at a single children's hospital...
December 28, 2016: Injury
https://www.readbyqxmd.com/read/28060230/return-to-function-complication-and-reoperation-rates-following-primary-pectoralis-major-tendon-repair-in-military-service-members
#17
Drew W Nute, Nicholas Kusnezov, John C Dunn, Brian R Waterman
BACKGROUND: Pectoralis major tendon ruptures have become increasingly common injuries among young, active individuals over the past 30 years; however, there is presently a paucity of reported outcome data. We investigated the ability to return to full preoperative level of function, complications, reoperation rates, and risk factors for failure following surgical repair of the pectoralis major tendon in a cohort of young, highly active individuals. METHODS: All U...
January 4, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28056527/osteochondral-allograft-transplantation-of-the-knee
#18
Rachel M Frank, Simon Lee, David Levy, Sarah Poland, Maggie Smith, Nina Scalise, Gregory L Cvetanovich, Brian J Cole
BACKGROUND: Osteochondral allograft transplantation (OAT) is being performed with increasing frequency, and the need for reoperations is not uncommon. PURPOSE: To quantify survival for OAT and report findings at reoperations. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: A review of prospectively collected data of 224 consecutive patients who underwent OAT by a single surgeon with a minimum follow-up of 2 years was conducted...
December 1, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28055267/microstructural-changes-in-the-thalamus-after-mild-traumatic-brain-injury-a-longitudinal-diffusion-and-mean-kurtosis-tensor-mri-study
#19
Erhard Trillingsgaard Næss-Schmidt, Jakob Udby Blicher, Simon Fristed Eskildsen, Anna Tietze, Brian Hansen, Peter William Stubbs, Sune Jespersen, Leif Østergaard, Jørgen Feldbæk Nielsen
PRIMARY OBJECTIVE: The primary aim of this study was to assess microstructural changes in the thalamus, hippocampus and corpus callosum with a fast mean kurtosis tensor (MKT) technique, in the acute and sub-acute phase after mTBI. It was hypothesized that MKT would differ between baseline and follow-up in patients. The secondary aim was to relate diffusion measures to symptoms of mTBI. RESEARCH DESIGN: A longitudinal case-control study. METHODS AND PROCEDURES: Twenty-seven patients with mTBI and 27 age- and gender-matched healthy controls were enrolled in the study...
January 5, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28055115/measurement-of-t-cell-telomere-length-using-amplified-signal-fish-staining-and-flow-cytometry
#20
Andrea L Henning, Danielle E Levitt, Jakob L Vingren, Brian K McFarlin
Exposure to pathogen-associated molecular patterns (PAMPS), damage-associated molecular patterns (DAMPS), and physiologically challenging stimuli either positively or negatively affect leukocyte maturity. Cellular maturity has implications for the effectiveness of host response to bacterial or viral infection and/or tissue injury. Thus, the ability to accurately assess cellular maturity and health is important to fully understand immune status and function. The most common technique for measuring cellular maturity is to measure telomere length; however, existing techniques are not optimized for single-cell measurements using flow cytometry...
January 5, 2017: Current Protocols in Cytometry
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