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https://www.readbyqxmd.com/read/28088077/rhoa-knockdown-by-cationic-amphiphilic-copolymer-sirhoa-polyplexes-enhances-axonal-regeneration-in-rat-spinal-cord-injury-model
#1
So-Jung Gwak, Christian Macks, Da Un Jeong, Mark Kindy, Michael Lynn, Ken Webb, Jeoung Soo Lee
Spinal cord injury (SCI) results in permanent loss of motor and sensory function due to developmentally-related and injured-induced changes in the extrinsic microenvironment and intrinsic neuronal biochemistry that limit plasticity and axonal regeneration. Our long term goal is to develop cationic, amphiphilic copolymers (poly (lactide-co-glycolide)-g-polyethylenimine, PgP) for combinatorial delivery of therapeutic nucleic acids (TNAs) and drugs targeting these different barriers. In this study, we evaluated the ability of PgP to deliver siRNA targeting RhoA, a critical signaling pathway activated by multiple extracellular inhibitors of axonal regeneration...
January 3, 2017: Biomaterials
https://www.readbyqxmd.com/read/28087891/physical-activity-and-exercise-for-chronic-pain-in-adults-an-overview-of-cochrane-reviews
#2
REVIEW
Louise J Geneen, R Andrew Moore, Clare Clarke, Denis Martin, Lesley A Colvin, Blair H Smith
BACKGROUND: Chronic pain is defined as pain lasting beyond normal tissue healing time, generally taken to be 12 weeks. It contributes to disability, anxiety, depression, sleep disturbances, poor quality of life, and healthcare costs. Chronic pain has a weighted mean prevalence in adults of 20%.For many years, the treatment choice for chronic pain included recommendations for rest and inactivity. However, exercise may have specific benefits in reducing the severity of chronic pain, as well as more general benefits associated with improved overall physical and mental health, and physical functioning...
January 14, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28087884/the-role-of-immunoglobulin-prophylaxis-for-prevention-of-cytomegalovirus-infection-in-pediatric-hematopoietic-stem-cell-transplantation-recipients
#3
Gal Goldstein, Tal Frenkel Rutenberg, Sarina Levy Mendelovich, Daphna Hutt, Michal Teperberg Oikawa, Amos Toren, Bella Bielorai
BACKGROUND: Following cessation of intravenous immunoglobulin (IVIg) administration for allogeneic hematopoietic stem cell transplantation (HSCT) recipients at our unit, we observed a sharp decline in the incidence of cytomegalovirus (CMV) infection. PROCEDURE: We conducted a retrospective study of the role of IVIg in the prevention of CMV infection in children and young adults who underwent HSCT from matched related donor. RESULTS: We included 109 patients (IVIg+/IVIg- ratio 82/27)...
January 14, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28087435/postmyelotomy-closure-of-spinal-cord-zip-lock-technique-an-initial-experience
#4
Daljit Singh, Shaam Bodeliwala, Hukum Singh, Anita Jagetia, Amit Mittal
Proper closure of the pia matter is necessary to restore the normal anatomy and prevent postoperative painful dysesthesia after excision of intramedullary spinal cord tumor. Two methods of closure of the pia have been described: welding technique and conventional suturing. Here, we report our initial experience with a new "pial press" or "zip-lock" technique for pial closure where pial layers are simply held together and plunged into each other with small micro tooth forceps. Advantages of the technique over other techniques are its less chances of suture related complications or trauma to the posterior column and simplicity of the technique...
January 10, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28087429/analysis-of-parameters-that-affect-human-hematopoietic-cell-outputs-in-mutant-c-kit-immunodeficient-mice
#5
Paul H Miller, Gabrielle Rabu, Margarita MacAldaz, David Jhf Knapp, Alice Ms Cheung, Kiran Dhillon, Naoto Nakamichi, Philip A Beer, Leonard D Shultz, R Keith Humphries, Connie J Eaves
Xenograft models are transforming our understanding of the output capabilities of primitive human hematopoietic cells in vivo. However, many variables that affect post-transplant reconstitution dynamics remain poorly understood. Here we show an equivalent level of human chimerism can be regenerated from human CD34(+) cord blood cells transplanted intravenously either with or without additional radiation-inactivated cells into 2-6 month-old NOD-Rag1(-/-)-IL2Rγc(-/-) (NRG) mice given a more radioprotective conditioning regimen than is possible in conventionally used, repair-deficient, NOD-Prkdc(scid/scid)-IL2Rγc(-/-) (NSG) hosts...
January 10, 2017: Experimental Hematology
https://www.readbyqxmd.com/read/28087386/androgens-and-androgen-receptor-signaling-contribute-to-ovarian-development-in-the-chicken-embryo
#6
Ryoma Tanaka, Hiroe Izumi, Asato Kuroiwa
Androgens and androgen receptor (AR) signaling play important roles throughout development. In the chicken, AR signaling is involved in reproduction; however, its specific role is unclear. We show that AR signaling is involved in the normal development of the female embryonic gonads. The AR mRNA level was detected in male and female embryonic gonads by quantitative RT-PCR, and its expression was higher in females than in males at all developmental stages examined. In female embryos, the AR localized to nuclei of cells in the left gonad...
January 10, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28087188/operative-fusion-of-multilevel-cervical-spondylotic-myelopathy-impact-of-patient-demographics
#7
Shearwood McClelland, Bryan J Marascalchi, Peter G Passias, Themistocles S Protopsaltis, Anthony K Frempong-Boadu, Thomas J Errico
Cervical spondylotic myelopathy (CSM) is the most common cause of spinal cord dysfunction in patients older than age 55, with operative management being a widely adopted approach. Previous work has shown that private insurance status, gender and patient race are predictive of the operative approach patients receive (anterior-only, posterior-only, combined anterior-posterior). The Nationwide Inpatient Sample from 2001 to 2010 was used to assess the potential role of multilevel CSM as a contributing factor in determining which operative approach CSM patients receive, as it is rare for an anterior-only approach to be sufficient for CSM patients requiring fusion of four or more involved levels...
January 10, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28087185/the-filum-terminale-internum-and-externum-a-comprehensive-review
#8
REVIEW
Erfanul Saker, Brandon M Henry, Krzysztof A Tomaszewski, Marios Loukas, Joe Iwanaga, Rod J Oskouian, R Shane Tubbs
INTRODUCTION: The filum terminale has oven been overlooked in the literature probably due to its small size and historical lack of research on its true morphology. However, this structure's roll in the tethered cord syndrome has become more apparent. Therefore, the current comprehensive review seemed timely. METHODS: Using standard search engines, the history, embryology, anatomy, pathology and surgery of the filum terminale were reviewed. CONCLUSIONS: It is only recently that the true anatomy and pathological involvement of the filum terminale in the tethered cord syndrome have been elucidated...
January 10, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28087163/clinical-studies-of-ex-vivo-expansion-to-accelerate-engraftment-after-umbilical-cord-blood-transplantation-a-systematic-review
#9
REVIEW
Jeffrey Kiernan, Pauline Damien, Madeline Monaghan, Risa Shorr, Lauralyn McIntyre, Dean Fergusson, Alan Tinmouth, David Allan
Cell dose limits greater use of umbilical cord blood (UCB) in hematopoietic cell transplantation. The clinical benefits of ex vivo expansion need clarity to understand its potential impact. A systematic search of studies addressing UCB ex vivo expansion was conducted. Fifteen clinical studies (349 transplanted patients) and 13 registered trials were identified. The co-infusion of an expanded unit and a second unmanipulated unit (8 studies), the fractional expansion of 12% to 60% of a single unit (5 studies), and the infusion of a single expanded unit (2 studies) were reported...
December 23, 2016: Transfusion Medicine Reviews
https://www.readbyqxmd.com/read/28086999/prognosis-disclosure-in-spinal-cord-injury
#10
EDITORIAL
Joyce Fichtenbaum, Steven Kirshblum, Lisa Ruppert, Thea Flaum, Gayle R Spill, Debjani Mukherjee
No abstract text is available yet for this article.
January 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28086920/absence-of-system-xc-on-immune-cells-invading-the-central-nervous-system-alleviates-experimental-autoimmune-encephalitis
#11
Ellen Merckx, Giulia Albertini, Magdalena Paterka, Cathy Jensen, Philipp Albrecht, Michael Dietrich, Joeri Van Liefferinge, Eduard Bentea, Lise Verbruggen, Thomas Demuyser, Lauren Deneyer, Jan Lewerenz, Geert van Loo, Jacques De Keyser, Hideyo Sato, Pamela Maher, Axel Methner, Ann Massie
BACKGROUND: Multiple sclerosis (MS) is an autoimmune demyelinating disease that affects the central nervous system (CNS), leading to neurodegeneration and chronic disability. Accumulating evidence points to a key role for neuroinflammation, oxidative stress, and excitotoxicity in this degenerative process. System xc(-) or the cystine/glutamate antiporter could tie these pathological mechanisms together: its activity is enhanced by reactive oxygen species and inflammatory stimuli, and its enhancement might lead to the release of toxic amounts of glutamate, thereby triggering excitotoxicity and neurodegeneration...
January 13, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28086758/toxoplasmosis-associated-iris-involving-the-cns-a-case-report-with-longitudinal-analysis-of-t-cell-subsets
#12
Rita Rb-Silva, Claudia Nobrega, Eugénia Reiriz, Soraia Almeida, Rui Sarmento-Castro, Margarida Correia-Neves, Ana Horta
BACKGROUND: HIV-infected patients may present an unforeseen clinical worsening after initiating antiretroviral therapy known as immune reconstitution inflammatory syndrome (IRIS). This syndrome is characterized by a heightened inflammatory response toward infectious or non-infectious triggers, and it may affect different organs. Diagnosis of IRIS involving the central nervous system (CNS-IRIS) is challenging due to heterogeneous manifestations, absence of biomarkers to identify this condition, risk of long-term sequelae and high mortality...
January 13, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28081205/anxiety-and-depression-in-patients-with-traumatic-spinal-cord-injury-a-nationwide-population-based-cohort-study
#13
Sher-Wei Lim, Yow-Ling Shiue, Chung-Han Ho, Shou-Chun Yu, Pei-Hsin Kao, Jhi-Joung Wang, Jinn-Rung Kuo
BACKGROUND: Traumatic spinal cord injury (tSCI) may involve new-onset anxiety and depression post-discharge. However, long-term population-based studies have lacked access to follow-up conditions in terms of new-onset anxiety and depression. The objective of this study was to estimate the long-term risk of new-onset anxiety and depression post-discharge. METHODS: The Longitudinal Health Insurance Database 2000 (LHID2000) from Taiwan's National Health Insurance Research Database was used in this study...
2017: PloS One
https://www.readbyqxmd.com/read/28081029/a-rarely-seen-complication-that-causes-increase-in-morbidity-in-tetraplegic-patients-zenker-diverticula
#14
Zeynep Kiraç Ünal, Ebru Umay, İbrahim Gündoğdu, Yasemin Tombak, Aytül Çakci
Although spinal cord injury (SCI) damages the spinal cord, physiological changes due to SCI can affect many organs and systems of the human body. While respiratory problems are common following cervical SCI, dysphagia is a relatively uncommon secondary complication that occurs after cervical SCI. We report a case of recurrent aspiration pneumonia due to Zenker diverticulum in 26-year-old tetraplegic patient with a chronic history of silent aspirations and dysphagia contributing to functional disability.
January 9, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28080915/dorsal-laminectomy-to-relieve-spinal-cord-compression-in-a-captive-syrian-bear-ursus-arctos-syriacus
#15
Ariela Rosenzweig Büeler, Yael Merbl, Yishai Kushnir, Orit Chai, Itzhak Aizenberg, Igal Horowitz, Einat Matalon, Doron Tam, Merav H Shamir
A 19-yr-old captive male Syrian bear ( Ursus arctos syriacus) presented with a right hind limb lameness that progressed to nonambulatory paraparesis over the course of 2 wk. When night enclosure confinement and a short course of glucocorticoids and antibiotics did not lead to improvement, radiographs were performed, followed by cerebrospinal fluid analysis and myelography, revealing a dynamic spinal cord compression at the level of T2-T3. Dorsal laminectomy of both T2 and T3 was performed to allow decompression...
December 2016: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28079781/transcutaneous-nerve-stimulation-for-pain-relief-during-office-hysteroscopy-a-randomized-controlled-trial
#16
Juan F Lisón, Juan J Amer-Cuenca, Silvia Piquer-Martí, Vicente Benavent-Caballer, Gemma Biviá-Roig, Alejandro Marín-Buck
OBJECTIVE: To evaluate the pain-relieving effect of transcutaneous electrical nerve stimulation (TENS) during office-based hysteroscopy without sedation. METHODS: We conducted a randomized, double-blind, placebo-controlled trial. Participants were randomly assigned to the active TENS, placebo TENS, or control group. The active TENS intervention consisted of a varying high-frequency (80-100 Hz), 400-microseconds, individually adjusted, high-intensity TENS application with two self-adhesive electrodes placed parallel to the spinal cord at the T10-L1 and S2-S4 levels...
January 9, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28079752/changes-in-dorsal-root-ganglion-gene-expression-in-response-to-spinal-cord-stimulation
#17
Dana M Tilley, David L Cedeño, Courtney A Kelley, Margaret DeMaegd, Ramsin Benyamin, Ricardo Vallejo
BACKGROUND AND OBJECTIVES: Spinal cord stimulation (SCS) has been shown to influence pain-related genes in the spinal cord directly under the stimulating electrodes. There is limited information regarding changes occurring at the dorsal root ganglion (DRG). This study evaluates gene expression in the DRG in response to SCS therapy. METHODS: Rats were randomized into experimental or control groups (n = 6 per group). Experimental animals underwent spared-nerve injury, implantation of lead, and continuous SCS (72 hours)...
January 11, 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28079704/modeling-perceived-exertion-during-graded-arm-cycling-exercise-in-spinal-cord-injury
#18
Jason S Au, Julia O Totosy de Zepetnek, Maureen J MacDonald
PURPOSE: Ratings of perceived exertion (RPE) may be useful for exercise testing and prescription in individuals with spinal cord injury (SCI), though the roles of differentiated central and peripheral fatigue during exercise are not clear. We aimed to model differentiated RPE responses during graded arm cycling in individuals with SCI and describe their relationship to cardiorespiratory outcomes. METHODS: Thirty-six individuals with SCI (13 paraplegia; 23 tetraplegia) completed a maximal graded-arm cycling exercise test to volitional exhaustion (5W/min paraplegia; 10W/min tetraplegia)...
January 10, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28079472/polymorphisms-of-rps6kb1-and-cd86-associates-with-susceptibility-to-multiple-sclerosis-in-iranian-population
#19
Rasoul Abdollah Zadeh, Nazanin Jalilian, Mohammad Ali Sahraian, Zeinab Kasraian, Mohammad Reza Noori-Daloii
OBJECTIVE:  Multiple sclerosis (MS) is the most prevalent disorder of nervous system inflammation which involves demyelination of spinal cord; this process depends on both environmental and genetic susceptibility factors. In the present study, we examined the association between two SNPs in RPS6KB1 (rs180515) and CD86 (rs9282641) with MS in Iranian population. RPS6KB1gene encodes p70S6K1 protein which plays a key role in mTOR signaling pathway, while CD86 gene codes a membrane protein type I which belongs to immunoglobulin super family act on co-stimulation signaling pathway...
January 12, 2017: Neurological Research
https://www.readbyqxmd.com/read/28079317/human-umbilical-cord-blood-cd34-positive-cells-as-predictors-of-the-incidence-and-short-term-outcome-of-neonatal-hypoxic-ischemic-encephalopathy-a-pilot-study
#20
Sahar M A Hassanein, Mohamed Hassan Nasr Eldin, Hanaa A Amer, Adel E Abdelhamid, Moustafa El Houssinie, Abir Ibrahim
BACKGROUND AND PURPOSE: Neonatal hypoxic-ischemic encephalopathy (HIE) is one of the leading causes of neurological handicap in developing countries. Human umbilical cord blood (hUCB) CD34-positive (CD34⁺) stem cells exhibit the potential for neural repair. We tested the hypothesis that hUCB CD34⁺ stem cells and other cell types [leukocytes and nucleated red blood cells (NRBCs)] that are up-regulated during the acute stage of perinatal asphyxia (PA) could play a role in the early prediction of the occurrence, severity, and mortality of HIE...
January 2017: Journal of Clinical Neurology
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