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https://www.readbyqxmd.com/read/29241237/delayed-hyperbaric-intervention-in-life-threatening-decompression-illness
#1
Michael Fm Perez, Janet V Ongkeko Perez, April R Serrano, Maravic P Andal, Maria Cc Aldover
Arterial gas embolism is a catastrophic event. Bubbles in the arterial circulation may lodge in the brain and cause infarction in the affected area and/or in a coronary vessel causing acute myocardial ischaemia. There is no well-defined window of time beyond which a response to hyperbaric oxygen is not expected. Major improvement may occur if the patient is treated as soon as possible, but is less likely in divers with severe decompression illness who have delayed intervention. We report on a 51-year-old, male rebreather diver who suffered loss of consciousness and cardiovascular collapse within minutes of a 30-metre deep dive at a remote Micronesian dive site...
December 2017: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
https://www.readbyqxmd.com/read/29239985/training-load-physical-performance-biochemical-markers-and-psychological-stress-during-a-short-preparatory-period-in-brazilian-elite-male-volleyball-players
#2
Thiago A G Horta, Maurício G Bara Filho, Danilo R Coimbra, R Miranda, Francisco Z Werneck
The aim of this study was to assess the relationship between training load (TL) and physical performance, biochemical markers, and psychological stress during a short preparatory period (PP) in Brazilian elite male volleyball players. Twelve volleyball players from a team competing in the Brazilian Men's Volleyball Super League were enrolled (26.9 ± 4.6 years). Countermovement Jump (CMJ), Creatine Kinase (CK), Testosterone (T), Cortisol (Cr), T/Cr ratio, and Recovery and Stress Questionnaire for Athletes (RESTQ-Sport) were collected at baseline, after 2, 4, and 6 week...
December 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29239337/globose-basal-cells-for-spinal-cord-regeneration
#3
Durai Murugan Muniswami, Indirani Kanakasabapathy, George Tharion
Spinal cord injury (SCI) is a devastating condition with loss of motor and sensory functions below the injury level. Cell based therapies are experimented in pre-clinical studies around the world. Neural stem cells are located intra-cranially in subventricular zone and hippocampus which are highly invasive sources. The olfactory epithelium is a neurogenic tissue where neurogenesis takes place throughout the adult life by a population of stem/progenitor cells. Easily accessible olfactory neuroepithelial stem/progenitor cells are an attractive cell source for transplantation in SCI...
November 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/29239316/design-and-criteria-of-electrospun-fibrous-scaffolds-for-the-treatment-of-spinal-cord-injury
#4
REVIEW
Barbara Vigani, Silvia Rossi, Giuseppina Sandri, Maria Cristina Bonferoni, Franca Ferrari
The complex pathophysiology of spinal cord injury may explain the current lack of an effective therapeutic approach for the regeneration of damaged neuronal cells and the recovery of motor functions. Many efforts have been performed to design and develop suitable scaffolds for spinal cord regeneration, keeping in mind that the reconstruction of a pro-regenerative environment is the key challenge for an effective neurogenesis. The aim of this review is to outline the main features of an ideal scaffold, based on biomaterials, produced by the electrospinning technique and intended for the spinal cord regeneration...
November 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/29239311/interferon-regulatory-factor-2-binding-protein-2-a-new-player-of-the-innate-immune-response-for-stroke-recovery
#5
REVIEW
Hsiao-Huei Chen, Alexandre F R Stewart
Ischemic brain injury triggers an inflammatory response. This response is necessary to clear damaged brain tissue but can also exacerbate brain injury. Microglia are the innate immune cells of the brain that execute this critical function. In healthy brain, microglia perform a housekeeping function, pruning unused synapses between neurons. However, microglia become activated to an inflammatory phenotype upon brain injury. Interferon regulatory factors modulate microglial activation and their production of inflammatory cytokines...
November 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/29239280/perceived-injustice-and-its-correlates-after-mild-traumatic-brain-injury
#6
Grant L Iverson, Douglas P Terry, Justin E Karr, William Panenka, Noah D Silverberg
Perceived injustice is a belief that one has been treated unfairly, disrespectfully, and is suffering unnecessarily as a result of another person's actions. Perceived injustice predicts chronic disability after musculoskeletal injury, but to our knowledge, has not been empirically studied in people with mild traumatic brain injuries (MTBIs). We examined perceived injustice and its correlates in patients who were slow to recover from MTBI. Patients (N=102) were recruited from four concussion clinics. The sample was on average 41...
December 14, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29239267/a-retrospective-study-of-predictors-of-return-to-duty-vs-medical-retirement-in-an-active-duty-military-population-with-blast-related-mild-traumatic-brain-injury
#7
Philip A Cook, Thomas M Johnson, Suzanne G Martin, Philip R Gerhman, Seema Bhatnagar, James C Gee
Traumatic Brain Injury (TBI), has been described as the "signature injury" of the Global War on Terror. Explosive blast TBI has become a leading cause of injury as a result of the widespread use of improvised explosive devices in Iraq and Afghanistan. We present a retrospective cross-sectional study of patients with blast-related mild TBI (N=303) seen at the Intrepid Spirit Concussion Recovery Center at Naval Medical Center Camp Lejeune. The objective was to predict outcomes of return to duty (RTD) vs. medical retirement via medical evaluation board (MEB), based on brain imaging, neuropsychological data and history of mTBI...
December 14, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29239143/role-of-plasmapheresis-in-the-management-of-acute-kidney-injury-in-patients-with-multiple-myeloma-should-we-abandon-it
#8
Vedran Premuzic, Josip Batinic, Pavle Roncevic, Nikolina Basic-Jukic, Damir Nemet, Bojan Jelakovic
The aim of the current study was to determine whether plasmapheresis in combination with chemotherapy could significantly remove free light chains (FLC) in multiple myeloma (MM) patients with acute kidney injury (AKI) and therefore improve renal recovery and patient survival. During the study period, 29 patients with MM and AKI presented to our unit and were treated with two different therapy modalities (plasmapheresis with chemotherapy or bortezomib). At the end of treatment, a significant decrease of FLCs was present in the group treated with plasmapheresis compared to the bortezomib group...
December 14, 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/29239014/cortical-electrical-stimulation-in-female-rats-with-a-cervical-spinal-cord-injury-to-promote-axonal-outgrowth
#9
Andrew S Jack, Caitlin Hurd, Juan Forero, Andrew Nataraj, Keith Fenrich, Armin Blesch, Karim Fouad
Electrical stimulation (ES) to promote corticospinal tract (CST) repair after spinal cord injury (SCI) is underinvestigated. This study is the first to detail intracortical ES of the injured CST. We hypothesize that cortical ES will promote CST collateralization and regeneration, prevent dieback, and improve recovery in an SCI rat model. The CST was transected at the the fourth cervical level in adult female Lewis rats trained in a stairwell grasping task. Animal groups included (a) ES333 (n = 14; 333 Hz, biphasic pulse for 0...
December 14, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/29238462/mechanisms-of-spinal-cord-injury-regeneration-in-zebrafish-a-systematic-review
#10
REVIEW
Zeynab Noorimotlagh, Mahla Babaie, Mahdi Safdarian, Tahereh Ghadiri, Vafa Rahimi-Movaghar
Objectives: To determine the molecular and cellular mechanisms of spinal cord regeneration in zebrafish. Materials and Methods: Medical databases of PubMed and Scopus were searched with following key words: Zebrafish; spinal cord injuries; regeneration; recovery of function. The map of mechanisms was performed using Xmind software. Results: Wnt/ß-catenin signaling, L1.1, L1.2, Major vault protein (MVP), contactin-2 and High mobility group box1 (HMGB1) had positive promoting effects on axonal re-growth while Ptena had an inhibitory effect...
December 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29238292/effect-of-vegf-on-inflammatory-regulation-neural-survival-and-functional-improvement-in-rats-following-a-complete-spinal-cord-transection
#11
Jing Li, Shuangxi Chen, Zhikai Zhao, Yunhao Luo, Yuhui Hou, Heng Li, Liumin He, Libing Zhou, Wutian Wu
After complete transection of the thoracic spinal segment, neonatal rats exhibit spontaneous locomotor recovery of hindlimbs, but this recovery is not found in adult rats after similar injury. The potential mechanism related to the difference in recovery of neonatal and adult rats remains unknown. In this study, 342 animals were analyzed. The vascular endothelial growth factor (VEGF) level in spinal segments below injury sites was significantly higher in postnatal day 1 rats (P1) compared with 28-day-old adult rats (P28) following a complete T9 transection...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/29237929/contralateral-c7-nerve-root-transfer-for-function-recovery-in-adults-a-meta-analysis
#12
Wen-Jun Li, Li-Yue He, Shan-Lin Chen, Yan-Wei Lyu, Shu-Feng Wang, Yang Yong, Wen Tian, Guang-Lei Tian, Yu-Dong Gu
BACKGROUND: Root avulsion to all 5 roots of the brachial plexus is a common presentation and keeps a major reconstructive challenge. The contralateral C7 (CC7) nerve transfer has been used in treating brachial plexus avulsion injury (BPAI) since 1986. However, the effectiveness of the procedure remains a subject of controversy. The aim of this meta-analysis was to study surgical outcomes regarding motor and sensory recovery after CC7 nerve transfer. METHODS: Chinese or English (i...
December 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/29237155/paracrine-activation-of-the-wnt-%C3%AE-catenin-pathway-by-bone-marrow-stem-cell-attenuates-cisplatin-induced-kidney-injury
#13
Xiaoyan Jiao, Jieru Cai, Xiaofang Yu, Xiaoqiang Ding
BACKGROUND/AIMS: Cisplatin-induced acute kidney injury (AKI) involves damage to tubular cells via excess reactive oxygen species (ROS) generation. Stem cell-based therapies have shown great promise in AKI treatment. In this study, we aimed to assess the protective effect and mechanism of bone marrow mesenchymal stem cell (BMSC)-derived conditioned medium (CM) against cisplatin-induced AKI. METHODS: In vitro, NRK-52E cells were incubated with cisplatin in the presence or absence of CM, followed by the assessment of cell viability, apoptosis and cell cycle distribution...
December 11, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29236823/good-sensory-recovery-of-the-hand-in-brachial-plexus-surgery-using-the-intercostobrachial-nerve-as-the-donor
#14
Luciano Foroni, Mário Gilberto Siqueira, Roberto Sérgio Martins, Carlos Otto Heise, Hugo Sterman, Adriana Yoriko Imamura
OBJECTIVE: Restoration of the sensitivity to sensory stimuli in complete brachial plexus injury is very important. The objective of our study was to evaluate sensory recovery in brachial plexus surgery using the intercostobrachial nerve (ICBN) as the donor. METHODS: Eleven patients underwent sensory reconstruction using the ICBN as a donor to the lateral cord contribution to the median nerve, with a mean follow-up period of 41 months. A protocol evaluation was performed...
November 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/29236604/intraoperative-neuromonitoring-alarms-relationship-of-the-surgeon-s-decision-to-intervene-or-not-and-clinical-outcomes-in-a-subset-of-spinal-surgical-patients-with-a-new-postoperative-neurological-deficit
#15
Arvydas Tamkus, Kent S Rice, Howard L Kim
BACKGROUND: The goal of intraoperative neurophysiologic monitoring (IONM) is to minimize neurologic injury during surgery, yet patients still emerge with postoperative deficits. Few studies focus on outcomes relative to IONM alarms and interventions in this population. The authors sought to analyze the influence of IONM alarms with and without surgical intervention on patient outcome in spinal surgical patients who suffered immediate postoperative neurologic deficits. METHODS: Of 62,038 spinal surgeries with multimodality IONM, 90 patients with new or worsened postoperative neurologic deficits and whose outcomes were reported immediate to the surgery and at discharge were analyzed...
2017: Neurodiagnostic Journal
https://www.readbyqxmd.com/read/29236211/association-of-whole-blood-tacrolimus-concentrations-with-kidney-injury-in-heart-transplantation-patients
#16
Maaike A Sikma, Claudine C Hunault, Johannes H Kirkels, Marianne C Verhaar, Jozef Kesecioglu, Dylan W de Lange
BACKGROUND AND OBJECTIVES: Acute kidney injury (AKI) is frequently observed after heart transplantation and is associated with morbidity and mortality. However, many confounding factors also contribute to the development of AKI in heart transplants. We hypothesized that supratherapeutic whole-blood tacrolimus trough concentrations are associated with AKI. METHODS: In a retrospective observational cohort from April 2005 to December 2012, all adult heart transplantation patients were included...
December 13, 2017: European Journal of Drug Metabolism and Pharmacokinetics
https://www.readbyqxmd.com/read/29234838/clinical-characteristics-and-prognosis-of-traumatic-head-injury-following-road-traffic-accidents-admitted-in-icu-analysis-of-694-cases
#17
Hedi Chelly, Mabrouk Bahloul, Rania Ammar, Ahmed Dhouib, Khaireddine Ben Mahfoudh, Mohamed Zaher Boudawara, Olfa Chakroun, Imen Chabchoub, Anis Chaari, Mounir Bouaziz
BACKGROUND: The aim of the present study is to analyze the clinical and epidemiological characteristics of Traumatic Brain Injury (TBI) following Road Traffic Accidents (RTAs). Moreover, we aim to evaluate the outcome of the TBI victims referred to our medico-surgical Intensive Care Unit (ICU), and to define predictive factors associated with poor prognosis. METHODS: A retrospective study over a 4-year period (2009 to 2012) of 694 patients with head injuries, incurred during road traffic accidents, admitted to the Intensive Care Unit (ICU) of a university hospital (Sfax-Tunisia)...
December 12, 2017: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/29234527/sphingosine-1-phosphate-receptor-1-modulates-cntf-induced-axonal-growth-and-neuroprotection-in-the-mouse-visual-system
#18
Sandrine Joly, Deniz Dalkara, Vincent Pernet
The lack of axonal regeneration and neuronal cell death causes permanent neurological deficits in the injured CNS. Using the classical CNS injury model of optic nerve crush in mice, ciliary neurotrophic factor (CNTF) was found to stimulate retinal ganglion cell (RGC) survival and axonal growth, but in an incomplete fashion. The elucidation of molecular mechanisms impairing CNTF-induced axonal regeneration is paramount to promote visual recovery. In the present study, we sought to evaluate the contribution of sphingosine 1-phosphate receptor 1 (S1PR1) to the neuroprotective and regenerative effects of CNTF...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/29234302/home-based-virtual-reality-augmented-training-improves-lower-limb-muscle-strength-balance-and-functional-mobility-following-chronic-incomplete-spinal-cord-injury
#19
Michael Villiger, Jasmin Liviero, Lea Awai, Rahel Stoop, Pawel Pyk, Ron Clijsen, Armin Curt, Kynan Eng, Marc Bolliger
Key factors positively influencing rehabilitation and functional recovery after spinal cord injury (SCI) include training variety, intensive movement repetition, and motivating training tasks. Systems supporting these aspects may provide profound gains in rehabilitation, independent of the subject's treatment location. In the present study, we test the hypotheses that virtual reality (VR)-augmented training at home (i.e., unsupervised) is feasible with subjects with an incomplete SCI (iSCI) and that it improves motor functions such as lower limb muscle strength, balance, and functional mobility...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29234276/functional-reintegration-of-sensory-neurons-and-transitional-dendritic-reduction-of-mitral-tufted-cells-during-injury-induced-recovery-of-the-larval-xenopus-olfactory-circuit
#20
Sara J Hawkins, Lukas Weiss, Thomas Offner, Katarina Dittrich, Thomas Hassenklöver, Ivan Manzini
Understanding the mechanisms involved in maintaining lifelong neurogenesis has a clear biological and clinical interest. In the present study, we performed olfactory nerve transection on larval Xenopus to induce severe damage to the olfactory circuitry. We surveyed the timing of the degeneration, subsequent rewiring and functional regeneration of the olfactory system following injury. A range of structural labeling techniques and functional calcium imaging were performed on both tissue slices and whole brain preparations...
2017: Frontiers in Cellular Neuroscience
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