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https://www.readbyqxmd.com/read/28739165/quantitative-models-of-feline-lumbosacral-dorsal-root-ganglia-neuronal-cell-density
#1
Anastasia K Ostrowski, Zachariah J Sperry, Grant Kulik, Tim M Bruns
BACKGROUND: Dorsal root ganglia (DRG) are spinal root components that contain the cell bodies of converging primary sensory neurons. DRG are becoming a therapeutic target for electrical neural interfaces. Our purpose was to establish methods for quantifying the non-random nature and distribution of neuronal cell bodies within DRG. NEW METHOD: We identified neuronal cell body locations in 26 feline lumbosacral DRG cross-section histological images and used computational tools to quantify spatial trends...
July 21, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28714062/splitting-the-difference-new-insights-into-distinguishing-features-of-human-versus-feline-models-of-adaptive-locomotor-control
#2
James M Finley
If you open most any neuroscience textbook and begin reading about the neural control of locomotion, you are almost guaranteed to find information gleaned from experimental studies of cats with spinal transections. This article is protected by copyright. All rights reserved.
July 17, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28599613/immunohistochemical-analysis-of-canine-and-feline-muscle-disorders-using-formalin-fixed-paraffin-embedded-tissues
#3
Takanori Shiga, Kazuyuki Uchida, James K Chambers, Hiroyuki Nakayama
Histochemical techniques used in examination of muscle biopsies typically require frozen sections. Given that most of the specimens submitted to a veterinary laboratory for diagnosis are formalin-fixed, the choice of staining methods is limited. We aimed to further advance the diagnostic capabilities of pathologists presented with formalin-fixed muscle samples and to describe the differences in immunohistopathologic findings between neurogenic and myogenic muscle disorders. Based on hematoxylin and eosin staining, we defined in dogs the histologic lesions in 4 neurogenic disorders (degenerative myelopathy and polyneuropathy) and 2 myogenic disorders (dystrophin-deficient muscular dystrophy)...
June 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28484114/vertebral-replacement-for-the-treatment-of-vertebral-osteosarcoma-in-a-cat
#4
Kohei Nakata, Harumi Miura, Hiroki Sakai, Takashi Mori, Sanae Shibata, Hidetaka Nishida, Sadatoshi Maeda, Hiroaki Kamishina
A 7-year-old cat was referred with pelvic limb ataxia. Radiography and CT revealed bone resorption of the L1 vertebral arch, and myelography identified a compressive extradural lesion. The mass was surgically removed and histopathologically diagnosed as giant cell osteosarcoma. Three years later, the recurrent tumor resection and vertebral fixation were performed. Six months later, vertebrectomy was performed to radically excise the recurrent mass and a titanium spinal cage was placed. The cat is alive approximately 5 years after the first surgery...
June 10, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28287078/the-design-of-and-chronic-tissue-response-to-a-composite-nerve-electrode-with-patterned-stiffness
#5
M J Freeberg, M A Stone, R J Triolo, D J Tyler
OBJECTIVE: As neural interfaces demonstrate success in chronic applications, a novel class of reshaping electrodes with patterned regions of stiffness will enable application to a widening range of anatomical locations. Patterning stiff regions and flexible regions of the electrode enables nerve reshaping while accommodating anatomical constraints of various implant locations ranging from peripheral nerves to spinal and autonomic plexi. APPROACH: Introduced is a new composite electrode enabling patterning of regions of various electrode mechanical properties...
June 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28156189/feline-glioma-a-retrospective-study-and-review-of-the-literature
#6
Daniel R Rissi, Andrew D Miller
Case series summary This study aimed to evaluate the pathologic and diagnostic features of 13 cases of feline glioma diagnosed at two veterinary diagnostic institutions over 16 years. A retrospective search was conducted using the laboratory information system. Selected cases were reviewed, tumors were classified according to the 2007 World Health Organization Classification of Tumours of the Central Nervous System, and tissue sections were submitted to an immunohistochemistry panel for further characterization...
February 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28113558/the-fabrication-implantation-and-stability-of-intraspinal-microwire-arrays-in-the-spinal-cord-of-cat-and-rat
#7
Jeremy A Bamford, R Marc Lebel, Kian Parseyan, Vivian K Mushahwar
Intraspinal microstimulation (ISMS) is currently under investigation for its ability to restore function following spinal cord injury and aid in addressing basic investigations of the spinal cord in feline and murine (rat) models. In this report we describe the procedures for fabricating and implanting intraspinal microwires, with special emphasis on the rat model. We also report our results on targeting success and long-term stability and functionality of the implants. Early targeting with implants fabricated based on general "average" dimensions of the spinal cord was approximately 50% successful in reaching the proper targets within the ventral grey matter in cats...
March 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28069392/characterization-and-validation-of-a-split-belt-treadmill-for-measuring-hindlimb-ground-reaction-forces-in-able-bodied-and-spinalized-felines
#8
Marko Dimiskovski, Richard Scheinfield, Dwight Higgin, Alexander Krupka, Michel A Lemay
BACKGROUND: The measurement of ground reaction forces (GRFs) in animals trained to locomote on a treadmill after spinal cord injury (SCI) could prove valuable for evaluating training outcomes; however, quantitative measures of the GRFs in spinal felines are limited. NEW METHOD: A split belt treadmill was designed and constructed to measure the GRFs of feline hindlimbs during stepping. The treadmill consists of two independent treadmill assemblies, each mounted on a force plate...
February 15, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/27687936/distribution-of-feline-lymphoma-in-the-central-and-peripheral-nervous-systems
#9
REVIEW
Maria Teresa Mandara, Luca Motta, Pietro Calò
In cats, lymphoma (lymphosarcoma) is the most common neoplasm affecting the spinal cord and the second most common intracranial tumour. Although lymphoma commonly develops in the spinal cord as a part of a multicentric process, a primary form may occur. Lymphoma can exhibit a wide range of morphological patterns, including intraparenchymal brain mass, lymphomatosis cerebri, intravascular lymphoma, lymphomatous choroiditis and meningitis, extradural, intradural-extramedullary or intramedullary lymphoma in the spinal cord, or neurolymphomatosis in the peripheral nerves...
October 2016: Veterinary Journal
https://www.readbyqxmd.com/read/27588458/first-report-of-systemic-toxoplasmosis-in-a-new-zealand-sea-lion-phocarctos-hookeri
#10
W D Roe, S Michael, J Fyfe, E Burrows, S A Hunter, L Howe
CASE HISTORY: A 1-year-old female New Zealand sea lion (Phocarctos hookeri) was intermittently observed in the Otago region of New Zealand over an 11-month period, always dragging her hind flippers. In December 2012 the sea lion was found dead, after a period of several days being observed to be harassed by male sea lions. PATHOLOGICAL FINDINGS: At gross postmortem examination the sea lion was in moderate body condition with signs of recent bite wounds and bruising...
January 2017: New Zealand Veterinary Journal
https://www.readbyqxmd.com/read/27025044/-nadph-diaphorase-reactivity-in-the-ventral-horn-of-the-feline-spinal-cord-during-acute-muscle-inflammation
#11
Ye P Man'kovskaya, A V Maznychenko, N O Pil'kevych, V O Maisky, O V Vlasenko, O V Dovgan
The aim of this research was to reveal the changes in the NADPH-d reactivity in the lumbal spinal cord (L6/L7) of cats with unilateral acute myositis of the mm. gastrocnemius-soleus after intramuscular injections of carrageenan. The effect of unilateral muscle inflammation was expressed in a significant increase in the number of NADPH-d-reactive neurons in ipsilateral and contralateral intermediate (lamina VII; 17.62 ± 2.7 and 20.67 ± 13.3) and medial (lamina VIII; 7.3 ± 1.9 and 6.0 ± 2.1 respectively) zones of the ventral horns...
2015: Fiziolohichnyĭ Zhurnal
https://www.readbyqxmd.com/read/26186173/non-steroidal-anti-inflammatory-drugs-nsaids-for-axial-spondyloarthritis-ankylosing-spondylitis-and-non-radiographic-axial-spondyloarthritis
#12
REVIEW
Féline P B Kroon, Lennart R A van der Burg, Sofia Ramiro, Robert B M Landewé, Rachelle Buchbinder, Louise Falzon, Désirée van der Heijde
BACKGROUND: Axial spondyloarthritis (axSpA) comprises ankylosing spondylitis (radiographic axSpA) and non-radiographic (nr-)axSpA and is associated with psoriasis, uveitis and inflammatory bowel disease. Non-steroidal anti-inflammatory drugs (NSAIDs) are recommended as first-line drug treatment. OBJECTIVES: To determine the benefits and harms of NSAIDs in axSpA. SEARCH METHODS: We searched CENTRAL, MEDLINE and EMBASE to 18 June 2014. SELECTION CRITERIA: Randomised controlled trials (RCTs) or quasi-RCTs of NSAIDs versus placebo or any comparator in adults with axSpA and observational cohort studies studying the long term effect (≥ six months) of NSAIDs on radiographic progression or adverse events (AEs)...
2015: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/26011748/diffuse-idiopathic-skeletal-hyperostosis-of-the-spine-in-a-nine-year-old-cat
#13
K Bossens, S Bhatti, I Van Soens, I Gielen, L Van Ham
A nine-year-old intact female domestic shorthair cat was evaluated for paraparesis, ataxia and severe spinal hyperaesthesia. Neurological examination indicated a T3-L3 spinal cord segment lesion. Computed tomography of the thoracolumbar and lumbosacral vertebral column was performed. This showed contiguous smooth new bone formation ventral and lateral to the vertebrae extending from the cranial thoracic area to the lumbosacral junction and appearing similar to canine diffuse idiopathic skeletal hyperostosis...
January 2016: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/25990062/onchocerciasis-caused-by-onchocerca-lupi-an-emerging-zoonotic-infection-systematic-review
#14
REVIEW
António J Santos Grácio, Joachim Richter, Anastasia Th Komnenou, Maria Amélia Grácio
Globalization has increased circulation of people, their food, livestock and pets in the world, and changes in the environment, climate and human behaviour have led to the rapid expansion of emerging infections throughout the world. One of the reasons of a new pathogen affecting humans is the passage from an animal to a human being. Onchocerca (O.) lupi, a filarial worm first described in a wolf in 1967, is an emerging pathogen which has been incriminated as the etiological agent for 205 canine, 2 feline and 18 human infections in Europe, Tunisia, Turkey, Iran and the USA...
July 2015: Parasitology Research
https://www.readbyqxmd.com/read/25971245/mucopolysaccharidosis-like-phenotype-in-feline-sandhoff-disease-and-partial-correction-after-aav-gene-therapy
#15
Heather L Gray-Edwards, Brandon L Brunson, Merrilee Holland, Adrien-Maxence Hespel, Allison M Bradbury, Victoria J McCurdy, Patricia M Beadlescomb, Ashley N Randle, Nouha Salibi, Thomas S Denney, Ronald J Beyers, Aime K Johnson, Meredith L Voyles, Ronald D Montgomery, Diane U Wilson, Judith A Hudson, Nancy R Cox, Henry J Baker, Miguel Sena-Esteves, Douglas R Martin
Sandhoff disease (SD) is a fatal neurodegenerative disease caused by a mutation in the enzyme β-N-acetylhexosaminidase. Children with infantile onset SD develop seizures, loss of motor tone and swallowing problems, eventually reaching a vegetative state with death typically by 4years of age. Other symptoms include vertebral gibbus and cardiac abnormalities strikingly similar to those of the mucopolysaccharidoses. Isolated fibroblasts from SD patients have impaired catabolism of glycosaminoglycans (GAGs). To evaluate mucopolysaccharidosis-like features of the feline SD model, we utilized radiography, MRI, echocardiography, histopathology and GAG quantification of both central nervous system and peripheral tissues/fluids...
September 2015: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/25873306/aav-mediated-gene-delivery-in-a-feline-model-of-sandhoff-disease-corrects-lysosomal-storage-in-the-central-nervous-system
#16
Hannah E Rockwell, Victoria J McCurdy, Samuel C Eaton, Diane U Wilson, Aime K Johnson, Ashley N Randle, Allison M Bradbury, Heather L Gray-Edwards, Henry J Baker, Judith A Hudson, Nancy R Cox, Miguel Sena-Esteves, Thomas N Seyfried, Douglas R Martin
Sandhoff disease (SD) is an autosomal recessive neurodegenerative disease caused by a mutation in the gene for the β-subunit of β-N-acetylhexosaminidase (Hex), resulting in the inability to catabolize ganglioside GM2 within the lysosomes. SD presents with an accumulation of GM2 and its asialo derivative GA2, primarily in the central nervous system. Myelin-enriched glycolipids, cerebrosides and sulfatides, are also decreased in SD corresponding with dysmyelination. At present, no treatment exists for SD. Previous studies have shown the therapeutic benefit of adeno-associated virus (AAV) vector-mediated gene therapy in the treatment of SD in murine and feline models...
March 2015: ASN Neuro
https://www.readbyqxmd.com/read/25857572/magnetic-resonance-imaging-features-and-outcome-for-solitary-central-nervous-system-coccidioides-granulomas-in-11-dogs-and-cats
#17
R Timothy Bentley, Hock Gan Heng, Craig Thompson, Chun-Sheng Lee, Robert A Kroll, Michael E Roy, Lauren Marini, Jin Heo, William L Wigle
Little published information is available to guide therapy for canine and feline patients with Coccidioides infections involving the central nervous system (CNS). The purpose of this cross-sectional retrospective study was to describe magnetic resonance imaging (MRI) features and outcome for a group of dogs and cats with solitary CNS Coccidiodes granulomas. Nine canine and two feline cases met inclusion criteria; four diagnosed and treated with surgery and fluconazole and seven diagnosed by serology or cytology and treated medically...
September 2015: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/25693447/susceptibility-artifacts-on-t2-weighted-magnetic-resonance-imaging-of-the-canine-and-feline-spine
#18
Laura J Hammond, Silke Hecht
The T2*-weighted gradient recalled echo sequence is a sensitive means to detect blood degradation products. While not a routine sequence in magnetic resonance imaging of the spine in small animals, it can provide additional valuable information in select cases. The goal of this retrospective, cross-sectional study was to describe findings when acquiring this sequence during magnetic resonance imaging examination of the spine in small animals. The University of Tennessee's veterinary radiology database was searched for dogs and cats that underwent magnetic resonance imaging for suspect spinal disease in which a T2*-weighted gradient recalled echo sequence was acquired and susceptibility artifact was identified...
July 2015: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/25615850/long-lasting-activity-of-nociceptive-muscular-afferents-facilitates-bilateral-flexion-reflex-pattern-in-the-feline-spinal-cord
#19
E D Schomburg, H Steffens, A I Pilyavskii, V A Maisky, W Brück, P Dibaj, T A Sears
Chronic muscular limb pain requires the adoption of motor patterns distinct from the classic ipsilateral flexion, crossed extension and corresponding reciprocal inhibitions to acute exteroceptive stimulation. Using selective chemical activation of group III/IV afferents in gastrocnemius-soleus (GS) muscles we investigated bilaterally their reflex responses conditioned by (a) acute 'myositis' induced by intramuscular carrageenan; and (b) sub-acute 'myositis' induced by infusion of complete Freund's adjuvant (CFA)...
June 2015: Neuroscience Research
https://www.readbyqxmd.com/read/25488973/japanese-bobtail-vertebral-morphology-and-genetic-characterization-of-an-established-cat-breed
#20
Rachel E Pollard, Amanda L Koehne, Carlyn B Peterson, Leslie A Lyons
Several cat breeds are defined by morphological variation of the tail. The Japanese Bobtail is a breed that has been accepted for registration only within the past 50 years; however, the congenital kinked tail variants defining this breed were documented in the Far East centuries ago and the cats are considered 'good luck' in several Asian cultures. The recent discovery of the mutation for the tailless Manx phenotype has demonstrated that the Japanese Bobtail does not have a causative mutation in the same gene (T-Box)...
August 2015: Journal of Feline Medicine and Surgery
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