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https://www.readbyqxmd.com/read/29233724/caprine-neonatal-spinal-ultrasonography
#1
Elham A Hassan, Khaled M Ali, Faisal A Torad
Spinal ultrasonography is a safe, rapid, and non-invasive diagnostic tool that allows visualization of the spinal cord and its surrounding meninges. The non-ossified spinous processes were used as an acoustic window for imaging the spinal cord in human and canine neonates. No available literatures have been published describing the ultrasonographic appearance of caprine neonatal spinal cord. The present study was performed on 20 one day-old goat kids. Sagittal and transverse ultrasound scans were obtained using 8MHz linear transducer...
December 9, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29228020/transplantation-of-canine-olfactory-ensheathing-cells-producing-chondroitinase-abc-promotes-chondroitin-sulphate-proteoglycan-digestion-and-axonal-sprouting-following-spinal-cord-injury
#2
Darren Carwardine, Jonathan Prager, Jacob Neeves, Elizabeth M Muir, James Uney, Nicolas Granger, Liang-Fong Wong
Olfactory ensheathing cell (OEC) transplantation is a promising strategy for treating spinal cord injury (SCI), as has been demonstrated in experimental SCI models and naturally occurring SCI in dogs. However, the presence of chondroitin sulphate proteoglycans within the extracellular matrix of the glial scar can inhibit efficient axonal repair and limit the therapeutic potential of OECs. Here we have used lentiviral vectors to genetically modify canine OECs to continuously deliver mammalian chondroitinase ABC at the lesion site in order to degrade the inhibitory chondroitin sulphate proteoglycans in a rodent model of spinal cord injury...
2017: PloS One
https://www.readbyqxmd.com/read/29223327/restoration-of-motor-function-after-operative-reconstruction-of-the-acutely-transected-spinal-cord-in-the-canine-model
#3
Zehan Liu, Shuai Ren, Kuang Fu, Qiong Wu, Jun Wu, Liting Hou, Hong Pan, Linlin Sun, Jian Zhang, Bingjian Wang, Qing Miao, Guiyin Sun, Vincenzo Bonicalzi, Sergio Canavero, Xiaoping Ren
BACKGROUND: Cephalosomatic anastomosis or what has been called a "head transplantation" requires full reconnection of the respective transected ends of the spinal cords. The GEMINI spinal cord fusion protocol has been developed for this reason. Here, we report the first randomized, controlled study of the GEMINI protocol in large animals. METHODS: We conducted a randomized, controlled study of a complete transection of the spinal cord at the level of T10 in dogs at Harbin Medical University, Harbin, China...
December 6, 2017: Surgery
https://www.readbyqxmd.com/read/29202506/effect-of-facetectomy-on-the-three-dimensional-biomechanical-properties-of-the-fourth-canine-cervical-functional-spinal-unit-a-cadaveric-study
#4
Nadja Bösch, Martin Hofstetter, Alexander Bürki, Beatriz Vidondo, Fenella Davies, Franck Forterre
Objective To study the biomechanical effect of facetectomy in 10 large breed dogs (>24 kg body weight) on the fourth canine cervical functional spinal unit. Methods Canine cervical spines were freed from all muscles. Spines were mounted on a six-degrees-of-freedom spine testing machine for three-dimensional motion analysis. Data were recorded with an optoelectronic motion analysis system. The range of motion was determined in all three primary motions as well as range of motion of coupled motions on the intact specimen, after unilateral and after bilateral facetectomy...
November 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/29166400/chronic-post-traumatic-intramedullary-lesions-in-dogs-a-translational-model
#5
Neringa Alisauskaite, Ingo Spitzbarth, Wolfgang Baumgärtner, Peter Dziallas, Sabine Kramer, Ricarda Dening, Veronika Maria Stein, Andrea Tipold
OBJECTIVES: Post-traumatic intramedullary myelopathies and cavitations are well described lesions following spinal cord injury (SCI) in humans and have been described in histopathological evaluations in dogs. Human intramedullary myelopathies/cavitations are associated with severe initial SCI and deterioration of clinical signs. Canine intervertebral disc extrusions share similarities with SCI in humans. In this descriptive study, magnetic resonance imaging (MRI) findings in spinal cords of dogs suffering from chronic post-traumatic myelopathies, including cavitations, are elucidated...
2017: PloS One
https://www.readbyqxmd.com/read/29145838/mri-characteristics-for-phantom-scratching-in-canine-syringomyelia
#6
Zoe R Nalborczyk, Angus K McFadyen, Jelena Jovanovik, Anna Tauro, Colin J Driver, Noel Fitzpatrick, Susan P Knower, Clare Rusbridge
BACKGROUND: A classic sign of canine syringomyelia (SM) is scratching towards one shoulder. Using magnetic resonance imaging (MRI) we investigate the spinal cord lesion relating to this phenomenon which has characteristics similar to fictive scratch secondary to spinal cord transection. Medical records were searched for Cavalier King Charles spaniels with a clinical and MRI diagnosis of symptomatic SM associated with Chiari-like malformation (CM). The cohort was divided into SM with phantom scratching (19 dogs) and SM but no phantom scratching (18 dogs)...
November 16, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29138745/spontaneous-nervous-system-concussion-in-dogs-a-description-of-two-cases-and-a-review-of-terminology-in-veterinary-medicine
#7
Angelo Pasquale Giannuzzi, Antonio De Simone, Mario Ricciardi
In human medicine, central nervous system (CNS) concussion is defined as a transient neurological dysfunction following a traumatic event, without evidence of structural abnormalities of the affected region on advanced diagnostic imaging. Depending on the anatomical region involved, three forms of concussive syndromes are described: brain concussion, spinal concussion and cerebellar concussion. Although major textbooks of veterinary neurology admit the existence of canine brain concussion, spontaneous cases of this pathological condition have not been reported in small animals so far...
2017: Open Veterinary Journal
https://www.readbyqxmd.com/read/29111148/effects-of-opioid-and-nonopioid-analgesics-on-canine-wheal-formation-and-cultured-human-mast-cell-degranulation
#8
Eric Schmidt-Rondon, Zhenping Wang, Shelle A Malkmus, Anna Di Nardo, Keith Hildebrand, Linda Page, Tony L Yaksh
Mast cell (MC) degranulation has been implicated in the side effect profile of a variety of clinically useful agents. Thus, after intrathecal delivery, formation of space-occupying, meningeally-derived masses may be related to local MC degranulation. We systematically characterized degranulating effects of opioid and nonopioid analgesics on cutaneous flares in the dog and in primary human MC (hMC) cultures. METHODS: Dogs were anesthetized with IV propofol and received intradermal (ID) injections (50μL)...
October 27, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29099681/beyond-the-laboratory-into-the-clinic-what-dogs-with-disk-disease-have-taught-us-about-photobiomodulation-for-spinal-cord-injury
#9
Narda G Robinson
BACKGROUND: For spinal-cord-injured (SCI) patients, integrative medicine approaches such as photomedicine and acupuncture can renew hope and offer previously unrecognized ways to help regain function and improve quality of life. OBJECTIVE: By understanding the mechanisms of action that these two modalities share, practitioners can better target specific attributes of spinal cord pathophysiology that are limiting recovery. Naturally occurring intervertebral disk disease (IVDD) in dogs affords unparalleled translational opportunities to develop treatment strategies involving photobiomodulation and acupuncture...
November 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29074336/the-role-of-fenestration-in-management-of-type-i-thoracolumbar-disk-degeneration
#10
REVIEW
Nick D Jeffery, Paul M Freeman
Fenestration offers the advantages of prophylaxis without the need for specialized instrumentation and imaging. Currently there is a lack of equipoise regarding the efficacy of fenestration relative to decompression for treatment of acute canine intervertebral disk herniation; most veterinary spinal surgeons do not consider the 2 procedures equivalently efficacious. Therapeutic fenestration should perhaps be given greater consideration, especially if advanced imaging shows only mild to moderate spinal cord compression or there are restrictions on the duration of surgery, when it might be better to spend the time on fenestration rather than decompression...
October 23, 2017: Veterinary Clinics of North America. Small Animal Practice
https://www.readbyqxmd.com/read/29037433/minimally-invasive-spine-surgery-in-small-animals
#11
REVIEW
Bianca F Hettlich
Minimally invasive spine surgery (MISS) seems to have many benefits for human patients and is currently used for various minor and major spine procedures. For MISS, a change in access strategy to the target location is necessary and it requires intraoperative imaging, special instrumentation, and magnification. Few veterinary studies have evaluated MISS for canine patients for spinal decompression procedures. This article discusses the general requirements for MISS and how these can be applied to veterinary spinal surgery...
January 2018: Veterinary Clinics of North America. Small Animal Practice
https://www.readbyqxmd.com/read/28974151/the-relationship-between-lesion-severity-characterized-by-diffusion-tensor-imaging-and-motor-function-in-chronic-canine-spinal-cord-injury
#12
Melissa J Lewis, Pew-Thian Yap, Susan McCullough, Natasha J Olby
Lesion heterogeneity among chronically paralyzed dogs after acute, complete thoracolumbar spinal cord injury (TLSCI) is poorly described. We hypothesized that lesion severity quantified by diffusion tensor imaging (DTI) is associated with hindlimb motor function. Our objectives were to quantify lesion severity with fractional anisotropy (FA), mean diffusivity (MD), and tractography and investigate associations with motor function. Twenty-two dogs with complete TLSCI in the chronic stage were enrolled and compared with six control dogs...
November 17, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28919363/thoracic-spinal-cord-and-cervical-vagosympathetic-neuromodulation-obtund-nodose-sensory-transduction-of-myocardial-ischemia
#13
Siamak Salavatian, Eric Beaumont, David Gibbons, Matthew Hammer, Donald B Hoover, J Andrew Armour, Jeffrey L Ardell
BACKGROUND: Autonomic regulation therapy involving either vagus nerve stimulation (VNS) or spinal cord stimulation (SCS) represents emerging bioelectronic therapies for heart disease. The objective of this study was to determine if VNS and/or SCS modulate primary cardiac afferent sensory transduction of the ischemic myocardium. METHODS: Using extracellular recordings in 19 anesthetized canines, of 88 neurons evaluated, 36 ventricular-related nodose ganglia sensory neurons were identified by their functional activity responses to epicardial touch, chemical activation of their sensory neurites (epicardial veratridine) and great vessel (descending aorta or inferior vena cava) occlusion...
August 18, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28886118/in-vivo-experimental-study-of-anterior-cervical-fusion-using-bioactive-polyetheretherketone-in-a-canine-model
#14
Takayoshi Shimizu, Shunsuke Fujibayashi, Seiji Yamaguchi, Bungo Otsuki, Yaichiro Okuzu, Tomiharu Matsushita, Tadashi Kokubo, Shuichi Matsuda
BACKGROUND: Polyetheretherketone (PEEK) is a widely accepted biomaterial, especially in the field of spinal surgery. However, PEEK is not able to directly integrate with bone tissue, due to its bioinertness. To overcome this drawback, various studies have described surface coating approaches aimed at increasing the bioactivity of PEEK surfaces. Among those, it has been shown that the recently developed sol-gel TiO2 coating could provide PEEK with the ability to bond with bone tissue in vivo without the use of a bone graft...
2017: PloS One
https://www.readbyqxmd.com/read/28865227/pathological-findings-in-low-field-magnetic-resonance-imaging-of-the-canine-spine-a-study-of-112-patients
#15
P Holak, J Głodek, M Mieszkowska, M Jałyński, Y Zhalniarovich, Z Adamiak
Magnetic resonance imaging (MRI) is a method of choice in diagnosing nervous system disorders. This paper presents the results of a study where selected segments of the canine spine were examined by low-field MRI in 112 patients. Images of pathological changes were obtained in spin echo (SE), fast spin echo (FSE) and hybrid contrast enhancement (3D HYCE) sequences. The cervical region of the spinal cord (C1-C5) was examined in 32 patients, the cervicothoracic region (C6-Th2)- in 14 patients, the thoracolumbar region (Th3-L3) - in 23 patients, and the lumbosacral region (L4-S3) - in 43 patients...
March 1, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28809631/-comparison-between-the-range-of-movement-canine-real-cervical-spine-and-numerical-simulation-computer-model-validation
#16
R Srnec, Z Horák, R Sedláček, M Sedlinská, M Krbec, A Nečas
PURPOSE OF THE STUDY In developing new or modifying the existing surgical treatment methods of spine conditions an integral part of ex vivo experiments is the assessment of mechanical, kinematic and dynamic properties of created constructions. The aim of the study is to create an appropriately validated numerical model of canine cervical spine in order to obtain a tool for basic research to be applied in cervical spine surgeries. For this purpose, canine is a suitable model due to the occurrence of similar cervical spine conditions in some breeds of dogs and in humans...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28762382/spontaneous-acute-and-chronic-spinal-cord-injuries-in-paraplegic-dogs-a-comparative-study-of-in-vivo-diffusion-tensor-imaging
#17
A Wang-Leandro, M K Hobert, N Alisauskaite, P Dziallas, K Rohn, V M Stein, A Tipold
STUDY DESIGN: Prospective observational-analytical study. OBJECTIVES: Description of diffusion tensor imaging (DTI) metrics obtained from the spinal cord (SC) of dogs with severe acute or chronic spontaneous, non-experimentally induced spinal cord injury (SCI) and correlation of DTI values with lesion extent of SCI measured in T2-weighted (T2W) magnetic resonance imaging sequences. SETTING: Hannover, Germany. METHODS: Forty-seven paraplegic dogs, 32 with acute and 15 with chronic SCI, and 6 disease controls were included...
August 1, 2017: Spinal Cord
https://www.readbyqxmd.com/read/28757523/operative-techniques-of-percutaneous-endoscopic-mini-hemilaminectomy-using-a-uniportal-approach-in-dogs
#18
Hee-Sup Moon, Yong-Hyun Hwang, Hee-Chun Lee, Jae-Hoon Lee
The present study aimed to investigate the technical feasibility of percutaneous endoscopic mini-hemilaminectomy via a uniportal approach, and to evaluate the possibility of decompression and endoscopic examination of the thoracic and lumbar spinal canals in small dogs during such procedures. Fresh canine cadavers of mixed-breed dogs (n=7) were used in this study. Following injection of a barium and agarose mixture (BA-gel) to stimulate intervertebral disc herniation, percutaneous endoscopic mini-hemilaminectomy was performed using a lateral approach to the thoracic and lumbar vertebrae...
September 12, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28726160/complete-canine-spinal-cord-transection-model-a-large-animal-model-for-the-translational-research-of-spinal-cord-regeneration
#19
Sufang Han, Xing Li, Zhifeng Xiao, Jianwu Dai
No abstract text is available yet for this article.
July 18, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28715613/isolation-and-characterization-of-canine-placenta-derived-mesenchymal-stromal-cells-for-the-treatment-of-neurological-disorders-in-dogs
#20
Connor Long, Lee Lankford, Priyadarsini Kumar, Robert Grahn, Dori L Borjesson, Diana Farmer, Aijun Wang
Spinal cord injury (SCI) is a devastating disorder that affects humans and dogs. The prognosis of SCI depends on the severity of the injury and can include varying levels of motor and sensory deficits including devastating paraplegia and quadriplegia. Placental mesenchymal stromal cells (PMSCs) have been shown to improve wound healing and possess neuroprotective and immunomodulatory capabilities, but have not yet been clinically tested for the treatment of SCI. This study established a protocol to isolate fetal PMSCs from canine placentas and characterized their paracrine secretion profile and ability to stimulate neurons in vitro to assess their potential as a treatment option for neurological disorders in dogs...
July 17, 2017: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
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