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https://www.readbyqxmd.com/read/28186165/netrin-1-improves-functional-recovery-through-autophagy-regulation-by-activating-the-ampk-mtor-signaling-pathway-in-rats-with-spinal-cord-injury
#1
Liangjie Bai, Xifan Mei, Zhaoliang Shen, Yunlong Bi, Yajiang Yuan, Zhanpeng Guo, Hongyu Wang, Haosen Zhao, Zipeng Zhou, Chen Wang, Kunming Zhu, Gang Li, Gang Lv
Autophagy is an process for the degradation of cytoplasmic aggregated proteins and damaged organelles and plays an important role in the development of SCI. In this study, we investigated the therapeutic effect of Netrin-1 and its potential mechanism for autophagy regulation after SCI. A rat model of SCI was established and used for analysis. Results showed that administration of Netrin-1 not only significantly enhanced the phosphorylation of AMP-activated protein kinase (AMPK) but also reduced the phosphorylation of mammalian target of rapamycin (mTOR) and P70S6K...
February 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28161391/spinal-muscular-atrophy-factors-that-modulate-motor-neurone-vulnerability
#2
REVIEW
Wen-Yo Tu, Julie E Simpson, J Robin Highley, Paul R Heath
Spinal muscular atrophy (SMA), a leading genetic cause of infant death, is a neurodegenerative disease characterised by the selective loss of particular groups of motor neurones in the anterior horn of the spinal cord with concomitant muscle weakness. To date, no effective treatment is available, however, there are ongoing clinical trials are in place which promise much for the future. However, there remains an ongoing problem in trying to link a single gene loss to motor neurone degeneration. Fortunately, given successful disease models that have been established and intensive studies on SMN functions in the past ten years, we are fast approaching the stage of identifying the underlying mechanisms of SMA pathogenesis Here we discuss potential disease modifying factors on motor neurone vulnerability, in the belief that these factors give insight into the pathological mechanisms of SMA and therefore possible therapeutic targets...
February 1, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28124772/expression-and-distribution-of-arylsulfatase-b-are-closely-associated-with-neuron-death-in-sod1-g93a-transgenic-mice
#3
Jie Zhang, Huiting Liang, Lei Zhu, Weiming Gan, Chunyan Tang, Jiao Li, Renshi Xu
The known proteins only explained the partial pathogenesis of amyotrophic lateral sclerosis (ALS). Therefore, this study aimed to search the novel proteins possibly involved in ALS. In this study, we analyzed the expression and distribution of the candidate protein arylsulfatase B (ARSB) in the different segments, anatomic regions, and neural cells of spinal cord at the different stages of the wild-type and [Cu/Zn] superoxide dismutase 1 (SOD1) G93A transgenic mice using the fluorescent immunohistochemistry and the western blot...
January 26, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28035406/bambi-inhibits-inflammation-through-the-activation-of-autophagy-in-experimental-spinal-cord-injury
#4
Yin Yang, Chunyang Guo, Bo Liao, Junjun Cao, Chen Liang, Xijing He
Autophagy plays an important role in the progression of spinal cord injury (SCI). In this study, we aimed to examine the effects and potential mechanisms of action of BMP and activin membrane-bound inhibitor (BAMBI) in the progression of SCI. A rat model of SCI was established and the rats were injected with pLentiH1-BAMBI shRNA and pAd-BAMBI in the gray and white matter of the spinal cord at T8. After 14 days, motor function evaluation was measured according to the Basso Beattie Bresnahan (BBB) method and the number of motor neuron cell accounts in the anterior horns was measured by Nissl staining...
February 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/27999136/human-muse-cells-reconstruct-neuronal-circuitry-in-subacute-lacunar-stroke-model
#5
Hiroki Uchida, Kuniyasu Niizuma, Yoshihiro Kushida, Shohei Wakao, Teiji Tominaga, Cesario V Borlongan, Mari Dezawa
BACKGROUND AND PURPOSE: Multilineage-differentiating stress-enduring (muse) cells are endogenous nontumorigenic stem cells with pluripotency harvestable as pluripotent marker SSEA-3(+) cells from the bone marrow from cultured bone marrow-mesenchymal stem cells. After transplantation into neurological disease models, muse cells exert repair effects, but the exact mechanism remains inconclusive. METHODS: We conducted mechanism-based experiments by transplanting serum/xeno-free cultured-human bone marrow-muse cells into the perilesion brain at 2 weeks after lacunar infarction in immunodeficient mice...
February 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/27998013/neuroprotective-and-ameliorating-impacts-of-omega-3-against-aspartame-induced-neuronal-and-astrocytic-degeneration
#6
Eyad M T Ali, Hany M A Sonpol
Aspartame (ASP) is one of the commonest artificial sweetener used all over the world and considered as an extremely risky compound and raises a lot of controversy. Therefore, this study was designed to investigate cellular damage of the anterior horn cells in the spinal cord of albino male rats and the possibility of hindering these changes by using omega-3 (OM3).Thirty seven adult male albino rats were divided into three groups: Control, ASP-treated and ASP+OM3-treated groups. Spinal cord sections were prepared and stained with Hx&E, caspase-3 and GFAP immunostaining...
December 20, 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27995572/intramuscular-delivery-of-scaav9-higf1-prolongs-survival-in-the-hsod1-g93a-als-mouse-model-via-upregulation-of-d-amino-acid-oxidase
#7
HuiQian Lin, HaoJie Hu, WeiSong Duan, YaLing Liu, GuoJun Tan, ZhongYao Li, YaKun Liu, BinBin Deng, XueQin Song, Wan Wang, Di Wen, Ying Wang, ChunYan Li
Self-complementary adeno-associated viral vector 9 (scAAV9) has been confirmed to be an efficient AAV serotype for gene transfer to the central nervous system (CNS). Neurotrophic factors have been considered to be therapeutic targets for amyotrophic lateral sclerosis (ALS). In the present study, we intramuscularly injected scAAV9 encoding human insulin-like growth factor 1 (hIGF1) into an hSOD1(G93A) ALS mouse model. We observed that scAAV9-hIGF1 significantly reduced the loss of motor neurons of the anterior horn in the lumbar spinal cord and delayed muscle atrophy in ALS mice...
December 19, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27940102/association-of-environmental-enrichment-and-locomotor-stimulation-in-a-rodent-model-of-cerebral-palsy-insights-of-biological-mechanisms
#8
André L F Meireles, Marília R Marques, Ethiane Segabinazi, Christiano Spindler, Francele V Piazza, Gabriela S Salvalaggio, Otávio A Augustin, Matilde Achaval, Simone Marcuzzo
Several physiotherapy approaches are used with different aims in the treatment of cerebral palsy (CP), such as the early stimulation and the locomotor training, but their biological effects, isolated or combined, are not completely known. In animals models, these strategies can be compared, with due translational restrictions, to the environmental enrichment (EE), that involves the enhancement of animal's physical and social environment, and locomotor stimulation (LS), that can be performed using the treadmill adapted for rats...
January 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/27899032/proteomic-profiling-of-the-spinal-cord-in-als-decreased-atp5d-levels-suggest-synaptic-dysfunction-in-als-pathogenesis
#9
Jooyeon Engelen-Lee, Anna M Blokhuis, Wim G M Spliet, R Jeroen Pasterkamp, Eleonora Aronica, Jeroen A A Demmers, Roel Broekhuizen, Giovanni Nardo, Niels Bovenschen, Leonard H Van Den Berg
BACKGROUND: We aimed to gain new insights into the pathogenesis of sporadic ALS (sALS) through a comprehensive proteomic analysis. METHODS: Protein profiles of the anterior and posterior horn in post-mortem spinal cord samples of 10 ALS patients and 10 controls were analysed using 2D-differential gel electrophoresis. The identified protein spots with statistically significant level changes and a spot ratio >2.0 were analysed by LC-MS/MS. RESULTS: In the posterior horn only 3 proteins were differentially expressed...
November 29, 2016: Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration
https://www.readbyqxmd.com/read/27897305/-cervical-ischaemic-neuronopathy-and-cardioembolism-another-cause-of-man-in-the-barrel-syndrome
#10
H Gonzalez-Usigli, A Gandarilla, J J Garcia, J Serrato, N Estrada
INTRODUCTION: Spinal infarction accounts for 1% of all strokes. Cardioembolism is a rare cause. Common areas of ischemic spinal damage are watershed in the dorsal or lumbar regions; however cervical spinal cord infarction has been reported previously. CASE REPORT: We present a new case of a man-in-the-barrel syndrome produced by cardiac embolization associated with atrial fibrillation during an acute myocardial infarction, which caused cervical ischemic neuronopathy (infarction of the anterior horn)...
December 16, 2016: Revista de Neurologia
https://www.readbyqxmd.com/read/27817136/management-of-destructive-candida-albicans-spondylodiscitis-of-the-cervical-spine-a-systematic-analysis-of-literature-illustrated-by-an-unusual-case
#11
REVIEW
Josef Stolberg-Stolberg, Dagmar Horn, Steffen Roßlenbroich, Oliver Riesenbeck, Stefanie Kampmeier, Michael Mohr, Michael J Raschke, René Hartensuer
PURPOSE: Candida induced spondylodiscitis of the cervical spine in immunocompetent patients is an extremely rare infectious complication. Since clinical symptoms might be nonspecific, therapeutic latency can lead to permanent spinal cord damage, sepsis and fatal complications. Surgical debridement is strongly recommended but there is no standard antimycotic regime for postsurgical treatment. This paper summarizes available data and demonstrates another successfully treated case. METHODS: The systematic analysis was performed according to the preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines...
November 5, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27800001/clinical-experiences-of-uncommon-motor-neuron-disease-hirayama-disease
#12
Kyoung Hee Lee, Dae Seob Choi, Young Suk Lee, Dong Ho Kang
Hirayama disease, juvenile muscular atrophy of the distal upper limb, is a rare disease predominantly affecting the anterior horn cells of the cervical spinal cord in young men. This cervical myelopathy is associated with neck flexion. It should be suspected in young male patients with a chronic history of weakness and atrophy involving the upper extremities followed by clinical stability in few years. Herein, we report 2 cases of Hirayama disease on emphasis of diagnostic approach and describe the pathognomonic findings at flexion magnetic resonance imaging...
September 2016: Korean Journal of Spine
https://www.readbyqxmd.com/read/27776698/ethyl-pyruvate-modulates-delayed-paralysis-following-thoracic-aortic-ischemia-reperfusion-in-mice
#13
Bao-Ngoc Nguyen, Hassan Albadawi, Rahmi Oklu, Robert S Crawford, Mitchell P Fink, Richard P Cambria, Michael T Watkins
OBJECTIVE: Delayed paralysis is an unpredictable problem for patients undergoing complex repair of the thoracic/thoracoabdominal aorta. These experiments were designed to determine whether ethyl pyruvate (EP), a potent anti-inflammatory and antioxidant agent, might ameliorate delayed paralysis following thoracic aortic ischemia reperfusion (TAR). METHODS: C57BL6 mice were subjected to 5 minutes of thoracic aortic ischemia followed by reperfusion for up to 48 hours...
November 2016: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27776522/inositol-1-4-5-trisphosphate-receptor-type-1-autoantibodies-in-paraneoplastic-and-non-paraneoplastic-peripheral-neuropathy
#14
Sven Jarius, Marius Ringelstein, Jürgen Haas, Irina I Serysheva, Lars Komorowski, Kai Fechner, Klaus-Peter Wandinger, Philipp Albrecht, Harald Hefter, Andreas Moser, Eva Neuen-Jacob, Hans-Peter Hartung, Brigitte Wildemann, Orhan Aktas
BACKGROUND: Recently, we described a novel autoantibody, anti-Sj/ITPR1-IgG, that targets the inositol 1,4,5-trisphosphate receptor type 1 (ITPR1) in patients with cerebellar ataxia. However, ITPR1 is expressed not only by Purkinje cells but also in the anterior horn of the spinal cord, in the substantia gelatinosa and in the motor, sensory (including the dorsal root ganglia) and autonomic peripheral nervous system, suggesting that the clinical spectrum associated with autoimmunity to ITPR1 may be broader than initially thought...
October 24, 2016: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/27766033/changes-in-the-expression-of-fus-tls-in-spinal-cords-of-sod1-g93a-transgenic-mice-and-correlation-with-motor-neuron-degeneration
#15
Jiao Li, Yi Lu, Huiting Liang, Chunyan Tang, Lei Zhu, Jie Zhang, Renshi Xu
In order to searching the possible pathogenesis of amyotrophic lateral sclerosis (ALS), we examined the expression and distribution of FUS/TLS protein in the different anatomic regions, segments and neural cells of adult spinal cord at the different stages of the SOD1 wild-type and G93A transgenic mice using the fluorescent immunohistochemistry. Result revealed that, in the SOD1 wild-type mice, the FUS/TLS expression almost wasn't detected. However, in the SOD1 G93A mice, the FUS/TLS expression in the white matter was significantly more than that in the gray matter...
2016: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/27688312/pulsed-radiofrequency-attenuates-complete-freund-s-adjuvant-induced-epigenetic-suppression-of-potassium-chloride-cotransporter-2-expression
#16
Chia-Kai Liu, Wen-Tzu Liao, Yu-Chi Chu, Chien-Hui Yang, Kuan-Hung Chen, Chih-Hsien Wu, Chung-Ren Lin
BACKGROUND:  Pulsed radiofrequency (PRF) treatment offers pain relief for patients suffering from chronic pain who do not respond well to conventional treatments. We tested whether PRF treatment attenuated complete Freund's adjuvant (CFA)-induced inflammatory pain. Epigenetic modification of potassium-chloride cotransporter 2 (KCC2) gene expression was examined to elucidate the potential contributing mechanism. METHODS:  Male Sprague-Dawley rats were injected with CFA into the plantar surface of the left hind paw to induce inflammation...
September 28, 2016: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/27649266/n-palmitoylethanolamide-in-the-anterior-cingulate-cortex-attenuates-inflammatory-pain-behaviour-indirectly-via-a-cb1-receptor-mediated-mechanism
#17
Bright N Okine, Manish K Madasu, Fiona McGowan, Charles Prendergast, Jessica C Gaspar, Brendan Harhen, Michelle Roche, David P Finn
The neural substrates and mechanisms mediating the antinociceptive effects of the endogenous bioactive lipid, N-palmitoylethanolamide (PEA), require further investigation. We investigated the effects of exogenous PEA administration into the anterior cingulate cortex (ACC), an important brain region linked with cognitive and affective modulation of pain, on formalin-evoked nociceptive behaviour in rats. Potential involvement of peroxisome proliferator-activated receptor isoforms (PPAR) α and γ or endocannabinoid-mediated entourage effects at cannabinoid1 (CB1) receptors or transient receptor potential subfamily V member 1 (TRPV1) in mediating the effects of PEA was also investigated...
December 2016: Pain
https://www.readbyqxmd.com/read/27640950/oxygenation-of-the-cerebrospinal-fluid-with-artificial-cerebrospinal-fluid-can-ameliorate-a-spinal-cord-ischemic-injury-in-a-rabbit-model
#18
Keisuke Kanda, Osamu Adachi, Satoshi Kawatsu, Ko Sakatsume, Kiichiro Kumagai, Shunsuke Kawamoto, Yoshikatsu Saiki
OBJECTIVE: We evaluated the effect of cerebrospinal fluid oxygenation for the prevention of spinal cord ischemic injury after infrarenal aortic occlusion in a rabbit model. METHODS: Twenty white Japanese rabbits were categorized into the following 4 groups (5 in each): group S (sham), balloon catheter insertion on to the aorta; group C (control), spinal cord ischemic injury by infrarenal abdominal aortic balloon occlusion for 15 minutes; group N (nonoxygenated), spinal cord ischemic injury with cerebrospinal fluid replacement by nonoxygenated artificial cerebrospinal fluid; and group O (oxygenated), spinal cord ischemic injury with cerebrospinal fluid replacement by nanobubble-oxygenated artificial cerebrospinal fluid...
November 2016: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/27616310/spinal-cord-anatomy-and-clinical-syndromes
#19
Eric Diaz, Humberto Morales
We review the anatomy of the spinal cord, providing correlation with key functional and clinically relevant neural pathways, as well as magnetic resonance imaging. Peripherally, the main descending (corticospinal tract) and ascending (gracilis or cuneatus fasciculi and spinothalamic tracts) pathways compose the white matter. Centrally, the gray matter can be divided into multiple laminae. Laminae 1-5 carry sensitive neuron information in the posterior horn, and lamina 9 carries most lower motor neuron information in the anterior horn...
October 2016: Seminars in Ultrasound, CT, and MR
https://www.readbyqxmd.com/read/27611334/age-related-uptake-of-heavy-metals-in-human-spinal-interneurons
#20
Roger Pamphlett, Stephen Kum Jew
Toxic heavy metals have been implicated in the loss of spinal motoneurons in amyotrophic lateral sclerosis/motor neuron disease (ALS/MND). Motoneuron loss in the spinal anterior horn is severe in ALS/MND at the time of death, making this tissue unsuitable for examination. We therefore examined spinal cords of people without muscle weakness to look for any presence of heavy metals that could make these neurons susceptible to damage. Spinal cord samples from 50 individuals aged 1-95 y who had no clinical or histopathological evidence of spinal motoneuron loss were studied...
2016: PloS One
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