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https://www.readbyqxmd.com/read/28343356/development-of-a-novel-strategy-to-target-cd39-antithrombotic-activity-to-the-endothelial-platelet-microenvironment-in-kidney-ischemia-reperfusion-injury
#1
Maithili Sashindranath, Karen M Dwyer, Shala Dezfouli, Carly Selan, Sandra Crikis, Bo Lu, Yuping Yuan, Michael J Hickey, Karlheinz Peter, Simon C Robson, Peter J Cowan, Harshal H Nandurkar
Kidney ischemia-reperfusion injury (IRI) is common during transplantation. IRI is characterised by inflammation and thrombosis and associated with acute and chronic graft dysfunction. P-selectin and its ligand PSGL-1 are cell adhesion molecules that control leukocyte-endothelial and leukocyte-platelet interactions under inflammatory conditions. CD39 is the dominant vascular nucleotidase that facilitates adenosine generation via extracellular ATP/ADP-phosphohydrolysis. Adenosine signalling is protective in renal IRI, but CD39 catalytic activity is lost with exposure to oxidant stress...
March 25, 2017: Purinergic Signalling
https://www.readbyqxmd.com/read/28343329/stress-fractures-of-the-foot-and-ankle-part-2-site-specific-etiology-imaging-and-treatment-and-differential-diagnosis
#2
Jacob C Mandell, Bharti Khurana, Stacy E Smith
Stress fractures of the foot and ankle are a commonly encountered problem among athletes and individuals participating in a wide range of activities. This illustrated review, the second of two parts, discusses site-specific etiological factors, imaging appearances, treatment options, and differential considerations of stress fractures of the foot and ankle. The imaging and clinical management of stress fractures of the foot and ankle are highly dependent on the specific location of the fracture, mechanical forces acting upon the injured site, vascular supply of the injured bone, and the proportion of trabecular to cortical bone at the site of injury...
March 25, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28343325/mri-can-accurately-detect-meniscal-ramp-lesions-of-the-knee
#3
Justin W Arner, Elmar Herbst, Jeremy M Burnham, Ashish Soni, Jan-Hendrik Naendrup, Adam Popchak, Freddie H Fu, Volker Musahl
PURPOSE: Posterior horn meniscal tears are commonly found in conjunction with anterior cruciate ligament (ACL) injury. Some believe tears in the posterior meniscocapsular zone, coined ramp lesions, are important to knee stability. The purpose of this study was to determine whether pre-operative MRI evaluation was able to accurately and reproducibly identify ramp lesions. METHODS: Three blinded reviewers assessed MRIs twice for the presence of ramp lesions in patients undergoing ACL reconstruction...
March 25, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28343321/a-risk-score-based-on-admission-characteristics-to-predict-progressive-hemorrhagic-injury-from-traumatic-brain-injury-in-children
#4
Guo-Wen Hu, Hai-Li Lang, Hua Guo, Lei Wu, Pei Zhang, Wei Kuang, Xin-Gen Zhu
Traumatic brain injury (TBI) is one of the leading causes of death and disability in children, and progressive hemorrhagic injury (PHI) post TBI is associated with poor outcomes. Therefore, the objective of this study was to develop and validate a prognostic model that uses the information available at admission to determine the likelihood of PHI occurrence after TBI in children. The identified demographic data, cause of injury, clinical predictors on admission, computed tomography scan characteristics, and routine laboratory parameters were collected and used to develop a PHI prognostic model with logistic regression analysis, and the prediction model was validated in 68 children...
March 25, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28343302/force-assisted-ultrasound-imaging-system-through-dual-force-sensing-and-admittance-robot-control
#5
Ting-Yun Fang, Haichong K Zhang, Rodolfo Finocchi, Russell H Taylor, Emad M Boctor
PURPOSE: Ultrasound imaging has been a gold standard for clinical diagnoses due to its unique advantages compared to other imaging modalities including: low cost, noninvasiveness, and safeness to the human body. However, the ultrasound scanning process requires applying a large force over extended periods of time, often in uncomfortable postures in order to maintain the desired orientation. This physical requirement over sonographers' careers often leads to musculoskeletal pain and strain injuries...
March 25, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28343294/neuroprotective-role-of-exogenous-brain-derived-neurotrophic-factor-in-hypoxia-hypoglycemia-induced-hippocampal-neuron-injury-via-regulating-trkb-mir134-signaling
#6
Weidong Huang, Facai Meng, Jie Cao, Xiaobin Liu, Jie Zhang, Min Li
Hypoxic-ischemic brain injury is an important cause of neonatal mortality and morbidity. Brain-derived neurotrophic factor (BDNF) has been reported to play a neuroprotective role in hypoxic-ischemic brain injury; however, the specific effects and mechanism of BDNF on hypoxic-hypoglycemic hippocampal neuron injury remains unknown. The current study investigated the action of BDNF in regulating cerebral hypoxic-ischemic injury by simulating hippocampal neuron ischemia and hypoxia. We found that BDNF, p-Trkb, and miR-134 expression levels decreased, and that exogenous BDNF increased survival and reduced apoptosis in hypoxic-hypoglycemic hippocampal neurons...
March 26, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28343290/muscle-injury-after-intramuscular-administration-of-diclofenac-a-case-report-supported-by-magnetic-resonance-imaging
#7
Mareike Probst, Jens-Peter Kühn, Christiane Modeß, Eberhard Scheuch, Anne Seidlitz, Norbert Hosten, Werner Siegmund, Werner Weitschies
Intramuscular injection of diclofenac is still frequently practiced, although there is ample evidence that the risk of local tissue intolerability is highly underestimated. The aim of this study was to evaluate local toxicity in a patient using magnetic resonance imaging. A patient who gave written informed consent received a medically indicated intramuscular administration of diclofenac 75 mg/2 mL. Simultaneously with magnetic resonance imaging of the depot, a clinical-chemical evaluation and quantification of diclofenac in plasma was performed...
December 2017: Drug Safety—Case Reports
https://www.readbyqxmd.com/read/28343286/a-mimic-of-sexually-motivated-homicide-insect-stings-and-heat-exhaustion-in-a-forest
#8
Nancy X Liu, Michael S Pollanen
We report the case a woman who was found dead in a forest. The body was nude and the position of the body suggested a sexually motivated homicide. We concluded that death was not related to homicide, but was related to the conjunction of environmental factors, including insect stings, and acute psychosis. A medicolegal death investigation with postmortem examination was undertaken to determine cause of death. At the scene, the body was supine with legs spread apart and the knees flexed, exposing the external genitalia...
March 25, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/28343236/effects-of-restricting-perioperative-use-of-intravenous-chloride-on-kidney-injury-in-patients-undergoing-cardiac-surgery-the-licra-pragmatic-controlled-clinical-trial
#9
David McIlroy, Deirdre Murphy, Jessica Kasza, Dhiraj Bhatia, Lisa Wutzlhofer, Silvana Marasco
PURPOSE: The administration of chloride-rich intravenous (IV) fluid and hyperchloraemia have been associated with perioperative renal injury. The aim of this study was to determine whether a comprehensive perioperative protocol for the administration of chloride-limited IV fluid would reduce perioperative renal injury in adults undergoing cardiac surgery. METHODS: From February 2014 through to December 2015, all adult patients undergoing cardiac surgery within a single academic medical center received IV fluid according to the study protocol...
March 25, 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/28343234/serum-endocan-as-a-predictive-marker-for-decreased-urine-volume-in-peritoneal-dialysis-patients
#10
Satoru Oka, Yoko Obata, Shuntaro Sato, Kenta Torigoe, Miki Sawa, Shinichi Abe, Kumiko Muta, Yuki Ota, Mineaki Kitamura, Satoko Kawasaki, Misaki Hirose, Tadashi Uramatsu, Hiroshi Mukae, Tomoya Nishino
BACKGROUND Endocan is expressed in vascular endothelial cells, and its expression is enhanced following endothelial injury via inflammatory cytokines. Subsequently, endocan is secreted into the circulation. Thus, serum endocan levels are considered a marker of endothelial injury. However, to the best of our knowledge, no data on the serum endocan levels in peritoneal dialysis (PD) patients are available. MATERIAL AND METHODS This study included 21 PD patients who underwent peritoneal equilibration test (PET) more than once between 2011 and 2015...
March 26, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28343228/focal-brain-injury-associated-with-a-model-of-severe-hypoxic-ischemic-encephalopathy-in-nonhuman-primates
#11
Ryan M McAdams, Ronald J McPherson, Raj P Kapur, Sandra E Juul
Worldwide, hypoxic-ischemic encephalopathy (HIE) is a major cause of neonatal mortality and morbidity. To better understand the mechanisms contributing to brain injury and improve outcomes in neonates with HIE, better preclinical animal models that mimic the clinical situation following birth asphyxia in term newborns are needed. In an effort to achieve this goal, we modified our nonhuman primate model of HIE induced by in utero umbilical cord occlusion (UCO) to include postnatal hypoxic episodes, in order to simulate apneic events in human neonates with HIE...
March 25, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28343224/the-evidence-of-acute-kidney-injury-in-the-community-and-for-primary-care-interventions
#12
Lauren Emmett, James Tollitt, Sheila McCorkindale, Smeeta Sinha, Dimitrios Poulikakos
BACKGROUND: Almost two-thirds of patients with acute kidney injury (AKI) damage their kidneys whilst in the community. This paper aims to review existing data on incidence, mortality, and morbidity of AKI within the community and explore the evidence base for primary care strategies aimed at reducing incidence and improving early detection and management of AKI. METHODS: A literature search was carried out using PubMed; key words including AKI, primary care, community acquired, and electronic alerts (e-alerts) were used to capture relevant data...
March 25, 2017: Nephron
https://www.readbyqxmd.com/read/28343223/sildenafil-enhances-quantity-of-immature-neurons-and-promotes-functional-recovery-in-the-developing-ischemic-mouse-brain
#13
Jonas Engels, Natalie Elting, Lisa Braun, Ivo Bendix, Josephine Herz, Ursula Felderhoff-Müser, Mark Dzietko
BACKGROUND: Hypoxic-ischemic (HI) injury to the developing brain occurs in 1 out of 1,000 live births and remains a major cause of significant morbidity and mortality. A large number of survivors suffer from long-term sequelae including seizures and neurological deficits. However, the pathophysiological mechanisms of recovery after HI insult are not clearly understood, and preventive measures or clinical treatments are nonexistent or not sufficiently effective in the clinical setting...
March 25, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28343216/susceptibility-weighted-imaging-identifies-iron-oxide-labeled-human-neural-stem-cells-automated-computational-detection
#14
Mohsen Baghchechi, Amy Plaia, Mary Hamer, Nirmalya Ghosh, Stephen Ashwal, Andre Obenaus
Neonatal hypoxic-ischemic brain injury (HII) can lead to devastating neurological outcomes such as cerebral palsy, epilepsy, and mental retardation. Human neural stem cell (hNSC) therapy provides new hope for the treatment of neonatal HII. These multipotent cells can aid in HII recovery by activating multiple reparative mechanisms including secretion of neurotrophic factors that enhance brain repair and plasticity. For clinical use of implanted hNSCs, methods are required to identify, quantify, track, and visualize migration and replication in an automated and reproducible fashion...
March 25, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28343212/suicide-case-with-multiple-injuries-with-sharp-objects
#15
Валентина В Черняк, Александр Е Девяткин, Галия М Мустафина, Артём Г Никифоров
The work of forensic - medical expert examination of the corpse at the place of its discovery and further research in the morgue often there are certain difficulties associated with the solution of a number of issues, including the establishment of a kind of death. Bringing the case demonstrates that, during the initial examination of the corpse to the place of its discovery the presence of multiple injuries on the body of a different nature, as a rule, initially suggest investigators to suspect that the murder occurred...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28343160/an-injury-prevention-pyramid-for-elite-sports-teams
#16
Philip Alexander Coles
No abstract text is available yet for this article.
March 25, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28343144/gene-and-protein-expressions-and-metabolomics-exhibit-activated-redox-signaling-and-wnt-%C3%AE-catenin-pathway-are-associated-with-metabolite-dysfunction-in-patients-with-chronic-kidney-disease
#17
Dan-Qian Chen, Gang Cao, Hua Chen, Dan Liu, Wei Su, Xiao-Yong Yu, Nosratola D Vaziri, Xiu-Hua Liu, Xu Bai, Li Zhang, Ying-Yong Zhao
Changes in plasma concentration of small organic metabolites could be due to their altered production or urinary excretion and changes in their urine concentration may be due to the changes in their filtered load, tubular reabsorption, and/or altered urine volume. Therefore, these factors should be considered in interpretation of the changes observed in plasma or urine of the target metabolite(s). Fasting plasma and urine samples from 180 CKD patients and 120 age-matched healthy controls were determined by UPLC-HDMS-metabolomics and quantitative real-time RT-PCR techniques...
March 23, 2017: Redox Biology
https://www.readbyqxmd.com/read/28343085/guava-fruit-extract-and-its-triterpene-constituents-have-osteoanabolic-effect-stimulation-of-osteoblast-differentiation-by-activation-of-mitochondrial-respiration-via-the-wnt-%C3%AE-catenin-signaling
#18
Konica Porwal, Subhashis Pal, Kapil Dev, Shyamsundar Pal China, Yogesh Kumar, Chandan Singh, Tarun Barbhuyan, Neeraj Sinha, Sabyasachi Sanyal, Arun Kumar Trivedi, Rakesh Maurya, Naibedya Chattopadhyay
The aim of this study was to evaluate the skeletal effect of guava triterpene-enriched extract (GE) in rats and identify osteogenic compounds thereof, and determine their modes of action. In growing female rats, GE at 250 mg/kg dose increased parameters of peak bone mass including femur length, bone mineral density (BMD) and biomechanical strength, suggesting that GE promoted modeling-directed bone growth. GE also stimulated bone regeneration at the site of bone injury. In adult osteopenic rats (osteopenia induced by ovariectomy, OVX) GE completely restored the lost bones at both axial and appendicular sites, suggesting a strong osteoanabolic effect...
March 8, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28343075/an-update-on-application-of-nanotechnology-and-stem-cells-in-spinal-cord-injury-regeneration
#19
REVIEW
Kazem Nejati-Koshki, Yousef Mortazavi, Younes Pilehvar-Soltanahmadi, Sumit Sheoran, Nosratollah Zarghami
Spinal cord injury (SCI) is damage to the spinal cord that leads to sudden loss of motor and autonomic function and sensory under the level of the injury. The pathophysiological advancement of SCI is divided into two categories: primary injury and secondary injury. Due to the loss of motor, sensory, or cognitive function, a patient's quality of life is likely reduced and places a great burden on society in order to supply health care costs. Therefore, it is important to develop suitable therapeutic strategies for SCI therapy...
March 23, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28343073/breviscapine-confers-a-neuroprotective-efficacy-against-transient-focal-cerebral-ischemia-by-attenuating-neuronal-and-astrocytic-autophagy-in-the-penumbra
#20
Zhang Pengyue, Guo Tao, He Hongyun, Yang Liqiang, Deng Yihao
Breviscapine is a flavonoid derived from a traditional Chinese herb Erigerin breviscapus (Vant.) Hand-Mazz, and has been extensively used in clinical treatment for cerebral stroke in China, but the underlying pharmacological mechanisms are still unclear. In present study, we investigated whether breviscapine could confer a neuroprotection against cerebral ischemia injury by targeting autophagy mechanisms. A cerebral stroke model in Sprague-Dawley rats was prepared by middle cerebral artery occlusion (MCAO), rats were then randomly divided into 5 groups: MCAO+Bre group, rats were treated with breviscapine; MCAO+Tat-Beclin-1 group, animals were administrated with specific autophagy inducer Tat-Beclin-1; MCAO+Bre+Tat-Beclin-1 group, rats were treated with both breviscapine and Tat-Beclin-1, MCAO+saline group, rats received the same volume of physiological saline, and Sham surgery group...
March 23, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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