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Spinal cord

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https://www.readbyqxmd.com/read/28231466/leaky-gate-model-intensity-dependent-coding-of-pain-and-itch-in-the-spinal-cord
#1
Shuohao Sun, Qian Xu, Changxiong Guo, Yun Guan, Qin Liu, Xinzhong Dong
Coding of itch versus pain has been heatedly debated for decades. However, the current coding theories (labeled line, intensity, and selectivity theory) cannot accommodate all experimental observations. Here we identified a subset of spinal interneurons, labeled by gastrin-releasing peptide (Grp), that receive direct synaptic input from both pain and itch primary sensory neurons. When activated, these Grp(+) neurons generated rarely seen, simultaneous robust pain and itch responses that were intensity dependent...
February 22, 2017: Neuron
https://www.readbyqxmd.com/read/28231269/a-mouse-model-of-paralytic-myelitis-caused-by-enterovirus-d68
#2
Alison M Hixon, Guixia Yu, J Smith Leser, Shigeo Yagi, Penny Clarke, Charles Y Chiu, Kenneth L Tyler
In 2014, the United States experienced an epidemic of acute flaccid myelitis (AFM) cases in children coincident with a nationwide outbreak of enterovirus D68 (EV-D68) respiratory disease. Up to half of the 2014 AFM patients had EV-D68 RNA detected by RT-PCR in their respiratory secretions, although EV-D68 was only detected in cerebrospinal fluid (CSF) from one 2014 AFM patient. Given previously described molecular and epidemiologic associations between EV-D68 and AFM, we sought to develop an animal model by screening seven EV-D68 strains for the ability to induce neurological disease in neonatal mice...
February 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28230791/the-temporal-pattern-flux-and-function-of-autophagy-in-spinal-cord-injury
#3
REVIEW
Kailiang Zhou, Charles A Sansur, Huazi Xu, Xiaofeng Jia
Previous studies have indicated that autophagy plays a critical role in spinal cord injury (SCI), including traumatic spinal cord injury (TSCI) and ischemia-reperfusion spinal cord injury (IRSCI). However, while the understanding of mechanisms underlying autophagy in SCI has progressed, there remain several controversial points: (1) temporal pattern results of autophagic activation after SCI are not consistent across studies; (2) effect of accumulation of autophagosomes due to the blockade or enhancement of autophagic flux is uncertain; (3) overall effect of enhanced autophagy remains undefined, with both beneficial and detrimental outcomes reported in SCI literature...
February 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28230492/clem-analysis-of-the-angiogenic-process-in-a-zebrafish-model-of-spinal-cord-injury
#4
A Pinto, A Ribeiro, T Carvalho, M L Saúde
No abstract text is available yet for this article.
January 2017: Ultrastructural Pathology
https://www.readbyqxmd.com/read/28230415/targeting-translational-successes-through-cansort-sci-using-pet-dogs-to-identify-effective-treatments-for-spinal-cord-injury
#5
Sarah A Moore, Nicolas Granger, Natasha Olby, Ingo Spitzbarth, Nick D Jeffery, Andrea Tipold, Yvette S Nout-Lomas, Ronaldo da Costa, Veronika Stein, Linda Noble-Haeusslein, Andrew R Blight, Robert Grossman, D Michele Basso, Jonathan Michael Levine
Translation of therapeutic interventions for spinal cord injury (SCI) from laboratory to clinic has been historically challenging, highlighting the need for robust models of injury that more closely mirror the human condition. The high prevalence of acute, naturally occurring SCI in pet dogs provides a unique opportunity to expeditiously evaluate promising interventions in a population of animals that are diagnosed and managed clinically in a manner similar to spinal cord-injured people, while adhering to NIH guidelines for scientific rigor and transparent reporting...
February 23, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28229936/neurons-of-the-rat-cervical-spinal-cord-express-vimentin-and-neurofilament-after-intraparenchymal-injection-of-kainic-acid
#6
Fabián Nishida, Susana M Sisti, Carolina N Zanuzzi, Claudio G Barbeito, Enrique L Portiansky
Intermediate filaments (IF) can be altered under disorders such as neurodegenerative diseases. Kainic acid (KA) induce behavioral changes and histopathological alterations of the spinal cord of injected rats. Our goal was to evaluate the IF expression in neurons during this injury model. Animals were injected with KA at the C5 segment of the cervical spinal cord and euthanized at 1, 3 and 7 post injection (pi) days. Neuronal cell counting showed a significant loss of neurons at the injection site when compared with those of sham and non-operated animals...
February 13, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28229644/emg-activity-of-upper-limb-on-spinal-cord-injury-individuals-during-whole-body-vibration
#7
Uslg Da Silva, H A Villagra, L L Oliva, N F Marconi
Whole-body vibration (WBV) has shown positive results increasing electromyographic (EMG) activity and strength in a healthy population when applied to upper and lower limbs. The aim of this study was to verify if WBV increases the EMG signal of the upper limb muscles in patients with spinal cord injury (SCI). For this study, 15 patients with SCI were selected and one single session of WBV was applied to the upper limb. Five sessions of 30 s at 30 Hz were applied and EMG of anterior deltoid and forearm muscles was measured...
September 2016: Physiol Int
https://www.readbyqxmd.com/read/28229532/n-butylidenephthalide-treatment-prolongs-life-span-and-attenuates-motor-neuron-loss-in-sod1-g93a-mouse-model-of-amyotrophic-lateral-sclerosis
#8
Qin-Ming Zhou, Jing-Jing Zhang, Song Li, Sheng Chen, Wei-Dong Le
AIMS: To evaluate the therapeutic effects of n-butylidenephthalide (BP) in SOD1(G93A) mouse model of amyotrophic lateral sclerosis and explore the possible mechanisms. METHODS: The SOD1(G93A) mice were treated by oral administration of BP (q.d., 400 mg/kg d) starting from 60 days of age and continuing until death. The rotarod test was performed to assess the disease onset. The expression levels of apoptosis-related proteins, inflammatory molecules, and autophagy-associated proteins were determined...
February 22, 2017: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/28229441/-robotic-systems-for-gait-re-education-in-cases-of-spinal-cord-injury-a-systematic-review
#9
T Gandara-Sambade, M Fernandez-Pereira, A Rodriguez-Sotillo
INTRODUCTION: The evidence underlying robotic body weight supported treadmill training in patients with spinal cord injury remains poorly characterized. AIM: To perform a qualitative systematic review on the efficacy of this therapy. PATIENTS AND METHODS: A search on PubMed, CINAHL, Cochrane Library and PEDro was performed from January 2005 to April 2016. The references in these articles were also reviewed to find papers not identified with the initial search strategy...
March 1, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28229410/therapeutic-application-of-placental-mesenchymal-stem-cells-reprogrammed-neurospheres-in-spinal-cord-injury-of-scid
#10
Vikram Sabapathy, Franklin Jebaraj Herbert, Sanjay Kumar
Mesenchymal stromal cells (MSCs) and induced pluripotent stem cells (iPSCs) have stimulated much interest in the scientific community and hopes among the general public since their discovery in 1966 due to a variety of potential applications it has in the field of regenerative medicine. Copious amount of literature, as well as long-term animal and human clinical trials, indicates that MSCs can be successfully used for therapeutic purpose without any extreme adversities. MSCs have been isolated from adult and fetal tissues...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28229309/nusinersen-first-global-approval
#11
Sheridan M Hoy
Spinal muscular atrophy (SMA) is a rare autosomal recessive disorder characterized by muscle atrophy and weakness resulting from motor neuron degeneration in the spinal cord and brainstem. It is most commonly caused by insufficient levels of survival motor neuron (SMN) protein (which is critical for motor neuron maintenance) secondary to deletions or mutations in the SMN1 gene. Nusinersen (SPINRAZA™) is a modified antisense oligonucleotide that binds to a specific sequence in the intron, downstream of exon 7 on the pre-messenger ribonucleic acid (pre-mRNA) of the SMN2 gene...
February 22, 2017: Drugs
https://www.readbyqxmd.com/read/28229085/folate-receptor-alpha-is-more-than-just-a-folate-transporter
#12
Vineet Mohanty, M Rizwan Siddiqui, Tadanori Tomita, Chandra Shekhar Mayanil
Until recently folate receptor alpha (FRα) has only been considered as a folate transporter. However, a novel role of FRα as a transcription factor was reported by our lab. More recently our lab showed a novel pleiotropic role of FRα: (a) direct transcriptional activation of Oct4, Sox2, and Klf4 genes; and (b) repression of biogenesis of miRNAs that target these genes or their effector molecules. These observations beg a question: "Can a simple molecule such as folate be used to manipulate the production and/or differentiation of endogenous neural stem cells (NSCs), which may hold promise for future therapies?" Conditions such as spinal cord injury, motor neuron diseases, Alzheimer's disease and multiple sclerosis may benefit from increasing stem cell pool and promoting specific pathways of differentiation...
2017: Neurogenesis (Austin, Tex.)
https://www.readbyqxmd.com/read/28229071/bilateral-vertebral-venous-sinus-thrombosis-causing-cervical-spinal-cord-compression-in-a-dog
#13
Kathryn E Rhue, Amanda R Taylor, Robert C Cole, Randolph L Winter
A 10-year-old male neutered mixed breed dog was evaluated for cervical hyperesthesia and tetraparesis. Magnetic resonance imaging of the brain and cervical spinal cord identified an extradural compressive lesion over the body of C2 caused by marked dilation of the vertebral venous sinuses. Following intravenous contrast administration both vertebral sinuses had heterogeneous contrast enhancement consistent with incomplete thrombi formation. An abdominal ultrasound also showed a distal aortic thrombus. A definitive cause for the thrombi formation was not identified, but the patient had several predisposing factors which may have contributed...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28228721/patients-with-chronic-spinal-cord-injury-exhibit-reduced-autonomic-modulation-during-an-emotion-recognition-task
#14
Gonzalo Varas-Díaz, Enzo P Brunetti, Gonzalo Rivera-Lillo, Pedro E Maldonado
Spinal cord injury (SCI) is a devastating event for individuals, who frequently develop motor and sensory impairment as well as autonomic dysfunction. Previous studies reported that autonomic activity plays a major role in social cognition and that difficulties in the ability to interpret social information are commonly observed in a variety of mental disorders, which in turn correlate with a poor autonomic nervous system (ANS) regulation. It is well established that subjects with SCI have an alteration in ANS regulation mechanisms...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28228700/osteochondroma-and-spinal-cord-compression-in-a-patient-with-hereditary-multiple-exostoses-a-case-report
#15
Robert J Zoboski
OBJECTIVE: The purpose of this report was to describe the presentation of a patient with hereditary multiple exostoses and thoracic spinal cord compression from an osteochondroma. CLINICAL FEATURES: A 31-year-old female presented to a chiropractic clinic with a history of hereditary multiple exostoses and back pain that had existed since the age of 16 years. She had a past medical history that was remarkable for 3 prior surgeries for mass removal. Examination revealed a left upper midscapular mass with decreased sensation...
March 2017: Journal of Chiropractic Medicine
https://www.readbyqxmd.com/read/28228600/porous-polymeric-platform-repairs-primates-after-spinal-cord-injury
#16
Bret D Ulery
Amine-containing polymers immobilized on mesh and placed at trauma sites scavenge biomolecules that initiate a damaging immune response.
February 22, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28228335/alterations-in-cardiac-autonomic-control-in-spinal-cord-injury
#17
Fin Biering-Sørensen, Tor Biering-Sørensen, Nan Liu, Lasse Malmqvist, Jill Maria Wecht, Andrei Krassioukov
A spinal cord injury (SCI) interferes with the autonomic nervous system (ANS). The effect on the cardiovascular system will depend on the extent of damage to the spinal/central component of ANS. The cardiac changes are caused by loss of supraspinal sympathetic control and relatively increased parasympathetic cardiac control. Decreases in sympathetic activity result in heart rate and the arterial blood pressure changes, and may cause arrhythmias, in particular bradycardia, with the risk of cardiac arrest in those with cervical or high thoracic injuries...
February 15, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28228050/is-neck-massage-safe-a-rare-case-of-tetraplegia-and-spinal-shock-after-neck-manipulation
#18
Tan Han Ling, Amir Fariz Bin Zakaria, Ahmad Tajuddin Bin Abdullah
Neck manipulation is associated with spinal cord injury. However, occurrence of such cases is infrequent. This article presents a 33-year-old gentleman who sustained acute tetraplegia after neck manipulation. The aim of this case report is to create awareness that vigorous neck manipulation could cause injury to the spinal cord.
January 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28228044/withaferin-a-protects-against-spinal-cord-injury-by-inhibiting-apoptosis-and-inflammation-in-mice
#19
Xianlei Yan, Guangxiang Huang, Quan Liu, Jiemin Zheng, Hongmou Chen, Qidan Huang, Jiakang Chen, Heqing Huang
CONTEXT: Withaferin A (WFA) exhibits diverse pharmaceutical applications on human diseases, including rheumatoid arthritis, cancers and microbial infection. OBJECTIVE: We evaluated the neuroprotective role of WFA using a mouse model of spinal cord injury (SCI). MATERIALS AND METHODS: BALB/c mice were administrated 10 mg/kg of WFA. Gene expression was measured by real-time PCR, western blot and immunohistochemistry. Cell morphology and apoptosis were determined by H&E staining and TUNEL assay...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28227989/computational-models-of-non-invasive-brain-and-spinal-cord-stimulation
#20
Pedro C Miranda, Ricardo Salvador, Cornelia Wenger, Sofia R Fernandes, Pedro C Miranda, Ricardo Salvador, Cornelia Wenger, Sofia R Fernandes, Sofia R Fernandes, Pedro C Miranda, Cornelia Wenger, Ricardo Salvador
Non-invasive brain and spinal cord stimulation techniques are increasingly used for diagnostic and therapeutic purposes. Knowledge of the spatial distribution of the induced electric field is necessary to interpret experimental results and to optimize field delivery. Since the induced electric field cannot be measured in vivo in humans, computational models play a fundamental role in determining the characteristics of the electric field. We produced computational models of the head and trunk to calculate the electric field induced in the brain and spinal cord by transcranial magnetic stimulation, transcranial direct current stimulation and transcutaneous spinal cord direct current stimulation...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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