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https://www.readbyqxmd.com/read/28338530/pharmacologic-characterizations-of-a-p2x7-receptor-specific-radioligand-11c-gsk1482160-for-neuroinflammatory-response
#1
Junbin Han, Hui Liu, Chunling Liu, Hongjun Jin, Joel S Perlmutter, Terrance M Egan, Zhude Tu
OBJECTIVE: The P2X7 receptor (P2X7R) is a key regulatory element in the neuroinflammatory cascade that provides a promising target for imaging neuroinflammation. GSK1482160, a P2X7R modulator with nanomolar binding affinity and high selectivity, has been successfully radiolabeled and utilized for imaging P2X7 levels in a mouse model of lipopolysaccharide-induced systemic inflammation. In the current study, we further characterized its binding profile and determined whether [C]GSK1482160 can detect changes in P2X7R expression in a rodent model of multiple sclerosis...
March 23, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28334553/a-multi-matrix-hilic-ms-ms-method-for-the-quantitation-of-endogenous-small-molecule-neurological-biomarker-n-acetyl-aspartic-acid-naa
#2
Dewakar Sangaraju, Sheerin K Shahidi-Latham, Braydon L Burgess, Brian Dean, Xiao Ding
A multi-matrix hydrophilic interaction liquid chromatography tandem mass spectrometric method (HILIC-MS/MS) was developed for the quantitation of N-Acetyl Aspartic acid (NAA) using stable isotope labeled internal standard, D3-NAA in various biological matrices such as human plasma, human CSF, mouse plasma, brain and spinal cord. A high throughput 96-well plate format supported liquid extraction (SLE) procedure was developed and used for sample preparation. Mass spectrometric analysis of NAA was performed using selected reaction monitoring transitions in positive electrospray ionization mode...
March 14, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28330804/cardiac-arrest-attributable-to-dysfunction-of-the-autonomic-nervous-system-after-traumatic-cervical-spinal-cord-injury
#3
Sei Won Kim, Chan Joo Park, Kyungil Kim, Yoon-Chung Kim
Bradycardia is the most common form of dysrhythmia developing after disruption of the sympathetic pathway by a spinal cord injury (SCI), and it can have fatal consequences, including cardiac arrest. Here, we report a case of cardiac arrest developing after cervical SCI attributable to sympathetic hypoactivity. A 26-year-old male pedestrian was admitted after a traffic accident. Radiologically, fractures were apparent at the C6-7 bilateral articular facets, and cord contusion with hemorrhage was evident at C4-7...
February 24, 2017: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/28325112/potential-of-personal-health-record-portals-in-the-care-of-individuals-with-spinal-cord-injuries-and-disorders-provider-perspectives
#4
Jennifer N Hill, Bridget M Smith, Frances M Weaver, Kim M Nazi, Florian P Thomas, Barry Goldstein, Timothy P Hogan
CONTEXT/OBJECTIVE: Although personal health record (PHR) portals are designed for patients, healthcare providers are a key influence in how patients use their features and realize benefits from them. A few studies have examined provider attitudes toward PHR portals, but none have focused on those who care for individuals with spinal cord injuries and disorders (SCI/D). We characterize SCI/D provider perspectives of PHR portals, including perceived advantages and disadvantages of PHR portal use in SCI/D care...
March 21, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28324980/effect-of-wearable-sensor-dynamics-on-physical-activity-estimates-a-comparison-between-sci-vs-healthy-individuals
#5
C Jayaraman, C K Mummidisetty, A Jayaraman
Accuracy of physical activity estimates predicted by activity monitoring technologies may be affected by device location, analysis algorithms, type of technology (i.e. wearable/stickable) and population demographics (disability) being studied. Consequently, the main purpose of this investigation was to study such sensor dynamics (i.e. effect of device location, type and population demographics on energy expenditure estimates) of two commercial activity monitors. It was hypothesized that device location, population studied (disability), choice of proprietary algorithm and type of technology used will significantly impact the accuracy of the predicted physical activity metrics...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28315443/progesterone-modulates-diabetes-hyperglycemia-induced-changes-in-the-central-nervous-system-and-sciatic-nerve
#6
Fahim Atif, Megan C Prunty, Nefize Turan, Donald G Stein, Seema Yousuf
We investigated the effect of progesterone (P4) treatment on diabetes/hyperglycemia-induced pathological changes in brain, spinal cord and sciatic nerve tissue in male rats. Animals were rendered hyperglycemic by a single dose of streptozotocin (STZ). P4 treatment was started after hyperglycemia was confirmed and body weight and blood glucose levels were monitored once/week for 5 weeks. Rats underwent behavioral testing at week 5 and were then euthanized for histology. We assessed the expression of markers of angiogenesis (vascular endothelial growth factor (VEGF)), inflammation (interleukin-6 (IL-6)) and tissue injury (CD11b, NG2, COX2 and matrix metalloproteinase-2 (MMP-2)) in the brain, spinal cord and sciatic nerve...
March 14, 2017: Neuroscience
https://www.readbyqxmd.com/read/28297348/inverse-treatment-planning-for-spinal-robotic-radiosurgery-an-international-multi-institutional-benchmark-trial
#7
Oliver Blanck, Lei Wang, Wolfgang Baus, Jimm Grimm, Thomas Lacornerie, Joakim Nilsson, Sergii Luchkovskyi, Isabel Palazon Cano, Zhenyu Shou, Myriam Ayadi, Harald Treuer, Romain Viard, Frank-Andre Siebert, Mark K H Chan, Guido Hildebrandt, Jürgen Dunst, Detlef Imhoff, Stefan Wurster, Robert Wolff, Pantaleo Romanelli, Eric Lartigau, Robert Semrau, Scott G Soltys, Achim Schweikard
Stereotactic radiosurgery (SRS) is the accurate, conformal delivery of high-dose radiation to well-defined targets while minimizing normal structure doses via steep dose gradients. While inverse treatment planning (ITP) with computerized optimization algorithms are routine, many aspects of the planning process remain user-dependent. We performed an international, multi-institutional benchmark trial to study planning variability and to analyze preferable ITP practice for spinal robotic radiosurgery. 10 SRS treatment plans were generated for a complex-shaped spinal metastasis with 21 Gy in 3 fractions and tight constraints for spinal cord (V14Gy<2 cc, V18Gy<0...
May 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28295616/associations-between-anesthetic-variables-and-functional-outcome-in-dogs-with-thoracolumbar-intervertebral-disk-extrusion-undergoing-decompressive-hemilaminectomy
#8
J Fenn, E Laber, K Williams, C A Rousse, P J Early, C L Mariani, K R Muñana, S De Decker, H A Volk, N J Olby
BACKGROUND: Outcome of acute experimental spinal cord injury is strongly associated with tissue perfusion and oxygenation. Cardiopulmonary depression could affect outcome in dogs undergoing general anesthesia for surgical treatment of thoracolumbar intervertebral disk extrusion (IVDE). HYPOTHESIS/OBJECTIVES: To evaluate the effects of general anesthesia on functional outcome in dogs undergoing surgery to treat thoracolumbar IVDE. ANIMALS: Eighty-four client-owned dogs with acute thoracolumbar IVDE treated by decompressive hemilaminectomy...
March 13, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28291403/a-rat-model-of-chronic-syringomyelia-induced-by-epidural-compression-of-the-lumbar-spinal-cord
#9
Ji Yeoun Lee, Shin Won Kim, Saet Pyoul Kim, Hyeonjin Kim, Jung-Eun Cheon, Seung-Ki Kim, Sun Ha Paek, Dachling Pang, Kyu-Chang Wang
OBJECTIVE There has been no established animal model of syringomyelia associated with lumbosacral spinal lipoma. The research on the pathophysiology of syringomyelia has been focused on Chiari malformation, trauma, and inflammation. To understand the pathophysiology of syringomyelia associated with occult spinal dysraphism, a novel animal model of syringomyelia induced by chronic mechanical compression of the lumbar spinal cord was created. METHODS The model was made by epidural injection of highly concentrated paste-like kaolin solution through windows created by partial laminectomy of L-1 and L-5 vertebrae...
February 17, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28289599/quantitative-measures-of-walking-and-strength-provide-insight-into-brain-corticospinal-tract-pathology-in-multiple-sclerosis
#10
Nora E Fritz, Jennifer Keller, Peter A Calabresi, Kathleen M Zackowski
At least 85% of individuals with multiple sclerosis report walking dysfunction as their primary complaint. Walking and strength measures are common clinical measures to mark increasing disability or improvement with rehabilitation. Previous studies have shown an association between strength or walking ability and spinal cord MRI measures, and strength measures with brainstem corticospinal tract magnetization transfer ratio. However, the relationship between walking performance and brain corticospinal tract magnetization transfer imaging measures and the contribution of clinical measurements of walking and strength to the underlying integrity of the corticospinal tract has not been explored in multiple sclerosis...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28284228/interactive-wearable-systems-for-upper-body-rehabilitation-a-systematic-review
#11
REVIEW
Qi Wang, Panos Markopoulos, Bin Yu, Wei Chen, Annick Timmermans
BACKGROUND: The development of interactive rehabilitation technologies which rely on wearable-sensing for upper body rehabilitation is attracting increasing research interest. This paper reviews related research with the aim: 1) To inventory and classify interactive wearable systems for movement and posture monitoring during upper body rehabilitation, regarding the sensing technology, system measurements and feedback conditions; 2) To gauge the wearability of the wearable systems; 3) To inventory the availability of clinical evidence supporting the effectiveness of related technologies...
March 11, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28283080/correlation-between-severity-of-clinical-signs-and-transcranial-magnetic-motor-evoked-potentials-in-dogs-with-intervertebral-disc-herniation
#12
H-L Amendt, J S Siedenburg, N Steffensen, U Kordass, K Rohn, A Tipold, V M Stein
Transcranial magnetic motor evoked potentials (TMMEPs) can assess the functional integrity of the spinal cord descending motor pathways. In intervertebral disc herniation (IVDH), these pathways are compromised to varying degrees reflected by the severity of neurological deficits. The hypotheses of this study were as follows: (1) TMMEPs differ in dogs with IVDH and healthy control dogs; (2) TMMEPs reflect different severities of neurological signs; and (3) TMMEPs can document functional motor improvement and therefore monitor recovery of function...
March 2017: Veterinary Journal
https://www.readbyqxmd.com/read/28273770/transglutaminase-6-is-an-autoantigen-in-progressive-multiple-sclerosis-and-is-upregulated-in-reactive-astrocytes
#13
Massimiliano Cristofanilli, Daniel Gratch, Benjamin Pagano, Kelsey McDermott, Jessie Huang, Jeffrey Jian, Deneb Bates, Saud A Sadiq
BACKGROUND: Transglutaminase-6 (TGM6), a member of the transglutaminase enzyme family, is found predominantly in central nervous system (CNS) neurons under physiological conditions. It has been proposed as an autoimmune target in cerebral palsy, gluten-sensitive cerebellar ataxia, and schizophrenia. OBJECTIVE: To investigate TGM6 involvement in multiple sclerosis (MS). METHODS: Antibody levels against TGM6 (TGM6-IgG) were measured in the cerebrospinal fluid (CSF) of 62 primary progressive multiple sclerosis (PPMS), 85 secondary progressive multiple sclerosis (SPMS), and 50 relapsing-remitting multiple sclerosis (RRMS) patients and 51 controls...
December 1, 2016: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28272379/importance-of-independent-sit-to-stand-ability-in-ambulatory-patients-with-spinal-cord-injury
#14
Lalita Khuna, Pipatana Amatachaya, Thanat Sooknuan, Thiwabhorn Thaweewannakij, Lugkana Mato, Jiamjit Seangsuwan, Sugalya Amatachaya
BACKGROUND: Sit-to-stand (STS) is an important and basic activity for daily living. However, a few studies have reported information relating to STS ability in ambulatory patients with spinal cord injury (SCI). AIM: To investigate factors associated with the ability of independent sit- to-stand (iSTS) among ambulatory patients with SCI. DESIGN: Cross-sectional cohort study. SETTING: Inpatient tertiary rehabilitation centre and several communities in Thailand...
March 8, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28269706/a-stimulation-driven-exoskeleton-for-walking-after-paraplegia
#15
Sarah R Chang, Mark J Nandor, Lu Li, Kevin M Foglyano, John R Schnellenberger, Rudi Kobetic, Roger D Quinn, Ronald J Triolo
An untethered version of a stimulation-driven exoskeleton was evaluated for its ability to restore walking after paralysis from spinal cord injury. The hybrid neuroprosthesis (HNP) combined a passive variable-constraint exoskeleton for stability and support with functional neuromuscular stimulation (FNS) to contract the paralyzed muscles to drive limb movement. This self-contained HNP was operated by an onboard controller that sampled sensor signals, generated appropriate commands to both the exoskeletal constraints and integrated stimulator, and transmitted data wirelessly via Bluetooth to an off-board computer for real-time monitoring and recording for offline analysis...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268308/wearable-deep-body-thermometers-and-their-uses-in-continuous-monitoring-for-daily-healthcare
#16
Ming Huang, Toshiyo Tamura, Takumi Yoshimura, Tadahiro Tsuchikawa, Shigehiko Kanaya
This paper introduces noninvasive deep body thermometers suitable for continuous deep body temperature (DBT) measurement. On the basis of their features, they were used in DBT monitoring for daily healthcare. A thermometer based on the dual-heat-flux method (T_DHFM), and an aural canal thermistor (ACT), were used in two studies of daily healthcare. The medical device CoreTemp by Terumo, based on the zero-heat-flux method, was also used for a DBT reference. The first study focused on preventing heat stroke in a high-temperature and high-humidity environment, while the other focused on the temperature monitoring of patients with spinal cord injuries...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28261102/genetic-and-pharmacological-inhibition-of-p38%C3%AE-improves-locomotor-recovery-after-spinal-cord-injury
#17
Hiroki Umezawa, Yusuke Naito, Kensuke Tanaka, Kento Yoshioka, Kenichi Suzuki, Tatsuhiko Sudo, Masahiko Hagihara, Masahiko Hatano, Koichiro Tatsumi, Yoshitoshi Kasuya
One of the mitogen-activated protein kinases, p38α plays a crucial role in various inflammatory diseases and apoptosis of various types of cells. In this study, we investigated the pathophysiological roles of p38α in spinal cord injury (SCI), using a mouse model. Lateral hemisection at T9 of the SC was performed in wild type (WT) and p38α(+/-) mice (p38α(-/-) showed embryonic lethality). p38α(+/-) mice showed a better functional recovery from SCI-associated paralyzed hindlimbs compared to WT mice at 7 days post-injury (dpi), which remained until 28 dpi (an end time point of monitoring the behavior)...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28259979/association-between-injury-severity-and-amyloid-%C3%AE-protein-levels-in-serum-and-cerebrospinal-fluid-in-rats-with-traumatic-spinal-cord-injury
#18
Lei Guo, Jingming Hou, Jianfeng Zhong, Jia Liu, Tiansheng Sun, Hongliang Liu
The aim of the present study was to determine whether amyloid-β (Aβ) protein could be detected in the serum and cerebrospinal fluid (CSF) of rats with traumatic spinal cord injury (SCI) and whether Aβ protein levels in serum and CSF correlated with the injury severity. A total of 140 adult female Sprague‑Dawley rats were randomly divided into four groups: Sham, mild injury, moderate injury and severe injury. Serum and CSF samples were collected at 12 h, 1, 3, 7, 14, 21 and 28 days post‑injury. ELISA analysis for serum and CSF Aβ protein was performed...
February 28, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28256151/the-emerging-potential-of-magnetic-resonance-imaging-in-personalizing-radiotherapy-for-head-and-neck-cancer-an-oncologist-s-perspective
#19
Kee H Wong, Rafal Panek, Shreerang A Bhide, Christopher M Nutting, Kevin J Harrington, Katie L Newbold
Head and neck cancer (HNC) is a challenging tumour site for radiotherapy delivery owing to its complex anatomy and proximity to organs at risk (OARs) such as the spinal cord and optic apparatus. Despite significant advances in radiotherapy planning techniques, radiation-induced morbidities remain substantial. Further improvement would require high-quality imaging and tailored radiotherapy based on intratreatment response. For these reasons, the use of MRI in radiotherapy planning for HNC is rapidly gaining popularity...
March 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28245229/combinatory-antibiotic-therapy-increases-rate-of-bacterial-kill-but-not-final-outcome-in-a-novel-mouse-model-of-staphylococcus-aureus-spinal-implant-infection
#20
Yan Hu, Vishal Hegde, Daniel Johansen, Amanda H Loftin, Erik Dworsky, Stephen D Zoller, Howard Y Park, Christopher D Hamad, George E Nelson, Kevin P Francis, Anthony Scaduto, Nicholas M Bernthal
BACKGROUND: Management of spine implant infections (SII) are challenging. Explantation of infected spinal hardware can destabilize the spine, but retention can lead to cord compromise and biofilm formation, complicating management. While vancomycin monotherapy is commonly used, in vitro studies have shown reduced efficacy against biofilm compared to combination therapy with rifampin. Using an established in vivo mouse model of SII, we aim to evaluate whether combination therapy has increased efficacy compared to both vancomycin alone and infected controls...
2017: PloS One
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