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https://www.readbyqxmd.com/read/28535416/the-role-of-timing-in-the-treatment-of-spinal-cord-injury
#1
REVIEW
Amene Saghazadeh, Nima Rezaei
Regeneration failure after primary spinal cord injury (SCI) leads to diverse clinical complications in a severity- and level of SCI-dependent manner. The cost of treating both of them (initial regeneration failure and following complications) would be prohibitive, particularly in less developed nations. The well-recognized circumstances arose from primary SCI include excitotoxicity and inflammation. SCI increases concentrations of extracellular amino acids (EAAs) in the severity-dependent manner and the maximum level of EAAs at the injury site will be reduced by distance from the injury site...
May 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28508172/targeting-enolase-in-reducing-secondary-damage-in-acute-spinal-cord-injury-in-rats
#2
Azizul Haque, Mollie Capone, Denise Matzelle, April Cox, Naren L Banik
Spinal cord injury (SCI) is a complex debilitating condition leading to permanent life-long neurological deficits. The complexity of SCI suggests that a concerted multi-targeted therapeutic approach is warranted to optimally improve function. Damage to spinal cord is complicated by an increased detrimental response from secondary injury factors mediated by activated glial cells and infiltrating macrophages. While elevation of enolase especially neuron specific enolase (NSE) in glial and neuronal cells is believed to trigger inflammatory cascades in acute SCI, alteration of NSE and its subsequent effects in acute SCI remains unknown...
May 15, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28489776/is-c-reactive-protein-a-marker-of-obstructive-sleep-apnea-a-meta-analysis
#3
Kun Li, Peng Wei, Yanwen Qin, Yongxiang Wei
BACKGROUND: Obstructive sleep apnea (OSA) is a common disease, distinguished by recurrent episodes of upper airway obstruction during sleep, with an inflammatory component. C-reactive protein (CRP) and high-sensitivity C-reactive protein (hs-CRP) are markers of systemic inflammation and may serve as biomarkers of OSA. METHODS: Scientific studies published from January 1, 2006, to January 1, 2016 were obtained via searches of PubMed, Embase, SCI, and China National Knowledge Internet (CNKI) using relevant terms...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28468657/hsya-alleviates-secondary-neuronal-death-through-attenuating-oxidative-stress-inflammatory-response-and-neural-apoptosis-in-sd-rat-spinal-cord-compression-injury
#4
Jun-Peng Pei, Li-Hong Fan, Kai Nan, Jia Li, Xiao-Qian Dang, Kun-Zheng Wang
BACKGROUND: Hydroxysafflor yellow A (HSYA) is a major active component of yellow pigment extracted from safflowers; this compound possesses potent neuroprotective effects both in vitro and in vivo. However, underlying mechanism of HSYA is not fully elucidated. The present study investigated the protective effects of HSYA in rat spinal cord compression injury model and related mechanisms involved. METHODS: Sprague-Dawley rats were divided as Sham, Control, and HSYA groups (n = 30 per group)...
May 3, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28450925/therapeutic-effect-of-apocynin-through-antioxidant-activity-and-suppression-of-apoptosis-and-inflammation-after-spinal-cord-injury
#5
Yijun Sun, Futai Gong, Jichao Yin, Xiaoyan Wang, Xiangyang Wang, Qing Sun, Zhiqiang Zhu, Xiaoqiang Su, Jie Zheng, Li Liu, Yang Li, Xinglv Hu, Jia Li
Spinal cord injury (SCI) is a devastating condition affecting hundreds of thousands of people worldwide annually. SCI results in activation of the inflammatory response and apoptosis, and generates oxidative stress, which has deleterious effects on the recovery of motor function. Apocynin, an inhibitor of NADPH oxidase, has been demonstrated to improve neuronal functional recovery in rat models of SCI. However, the efficacy of apocynin treatment post-SCI has not been investigated. The aim of this study was to observe the effects of apocynin on the repair of acute spinal cord damage in rats and to examine the potential beneficial effects...
March 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28437223/exercise-and-peripheral-nerve-grafts-as-a-strategy-to-promote-regeneration-after-acute-or-chronic-spinal-cord-injury
#6
Catherine C Theisen, Rahul Sachdeva, Scarlett Austin, Danielle Kulich, Victoria Kranz, John D Houle
Therapeutic interventions after spinal cord injury (SCI) routinely are designed to address multiple aspects of the primary and/or secondary damage that occurs. Exercise has a demonstrated efficacy for post-SCI complications such as cardiovascular dysfunction, neuropathic pain, and chronic inflammation, yet there is little understanding of the mechanisms by which improvements might result from this non-invasive approach. Here we review several of our observations of molecular and cellular changes within the injured spinal cord following acute or delayed exercise regimens that illustrate the potential for positive effects on neuroprotection and rehabilitation...
May 15, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28436759/the-roles-of-micrornas-in-spinal-cord-injury
#7
Zhongju Shi, Hengxing Zhou, Lu Lu, Xueying Li, Zheng Fu, Jun Liu, Yi Kang, Zhijian Wei, Bin Pan, Lu Liu, Xiaohong Kong, Shiqing Feng
BACKGROUND AND PURPOSE: Spinal cord injury (SCI) involves serious damage that can result in abnormal or absent motor and sensory functions and a disruption of autonomic function, and a series of pathological reactions occur after the injury. As a type of small non-coding RNA, microRNAs (miRNAs) have been verified to inhibit gene expression via posttranscriptional regulation. This review mainly focuses on recent advances regarding the roles of miRNAs following SCI. METHODS: The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were adopted...
April 24, 2017: International Journal of Neuroscience
https://www.readbyqxmd.com/read/28421532/matrix-metalloproteinase-8-inhibition-prevents-disruption-of-blood-spinal-cord-barrier-and-attenuates-inflammation-in-rat-model-of-spinal-cord-injury
#8
Hemant Kumar, Min-Jae Jo, Hyemin Choi, Manjunatha S Muttigi, Seil Shon, Byung-Joo Kim, Soo-Hong Lee, In-Bo Han
After spinal cord injury (SCI), tight junction (TJ) protein degradation increases permeability and disrupts the blood-spinal cord barrier (BSCB). The BSCB is primarily formed of endothelial cell, which forms a specialized tight seal due to the presence of TJs. BSCB disruption after SCI allows neutrophil infiltration. Matrix metalloproteinase (MMP)-8 is believed to be mainly expressed by neutrophils and is quickly released upon neutrophil activation. Here, we determined whether MMP-8 is involved in the TJ protein degradation in endothelial cells and also determined its role in the neuroinflammation after SCI...
April 18, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28409351/inflammation-and-fibrosis-in-polycystic-kidney-disease
#9
Cheng Jack Song, Kurt A Zimmerman, Scott J Henke, Bradley K Yoder
Polycystic kidney disease (PKD) is a commonly inherited disorder characterized by cyst formation and fibrosis (Wilson, N Engl J Med 350:151-164, 2004) and is caused by mutations in cilia or cilia-related proteins, such as polycystin 1 or 2 (Oh and Katsanis, Development 139:443-448, 2012; Kotsis et al., Nephrol Dial Transplant 28:518-526, 2013). A major pathological feature of PKD is the development of interstitial inflammation and fibrosis with an associated accumulation of inflammatory cells (Grantham, N Engl J Med 359:1477-1485, 2008; Zeier et al...
2017: Results and Problems in Cell Differentiation
https://www.readbyqxmd.com/read/28381129/compression-decreases-anatomical-and-functional-recovery-and-alters-inflammation-after-contusive-spinal-cord-injury
#10
Michael B Orr, Jennifer Simkin, William M Bailey, Neha H Kadambi, Anna Leigh McVicar, Amy K Veldhorst, John Gensel
Experimental models of spinal cord injury (SCI) typically utilize contusion or compression injuries. Clinically, however, SCI is heterogeneous and the primary injury mode may affect secondary injury progression and neuroprotective therapeutic efficacy. Specifically, immunomodulatory agents are of therapeutic interest because the activation state of SCI macrophages may facilitate pathology but also improve repair. It is currently unknown how the primary injury biomechanics affect macrophage activation. Therefore, to determine the effects of compression subsequent to spinal contusion, we examined recovery, secondary injury, and macrophage activation in C57/BL6 mice after SCI with or without a 20s compression at two contusion impact forces (50 and 75 kdyn)...
April 5, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28367421/coadministration-of-dexamethasone-and-melissa-officinalis-has-neuroprotective-effects-in-rat-animal-model-with-spinal-cord-injury
#11
Seyed Ruhollah Hosseini, Gholamreza Kaka, Mohammad Taghi Joghataei, Mehdi Hooshmandi, Seyed Homayoon Sadraie, Kayvan Yaghoobi, Korosh Mansoori, Alireza Mohammadi
OBJECTIVE: Spinal cord injury (SCI) causes inflammation, deformity and cell loss. It has been shown that Melissa officinalis (MO), as herbal medicine, and dexamethasone (DEX) are useful in the prevention of various neurological diseases. The present study evaluated combinational effects of DEX and MO on spinal cord injury. MATERIALS AND METHODS: Thirty six adult male Wistar rats were used in this experimental study. The weight-drop contusion method was employed to induce spinal cord injury in rats...
April 2017: Cell Journal
https://www.readbyqxmd.com/read/28363523/cordycepin-enriched-wib-801c-from-cordyceps-militaris-improves-functional-recovery-by-attenuating-blood-spinal-cord-barrier-disruption-after-spinal-cord-injury
#12
Jee Youn Lee, Hye Young Choi, Hyung Hwan Baik, Bong G Ju, Won-Ki Kim, Tae Young Yune
ETHNOPHARMACOLOGICAL RELEVANCE: Cordyceps militaris is an ingredient of traditional Chinese medicine and have been widely used for inflammatory diseases and cancer. Cordycepin is one of the major bioactive components of Cordyceps militaris, and has been known to have anti-inflammatory and anti-oxidant effects. AIM OF THIS STUDY: In the present study, we examined whether WIB-801C, a standardized and cordycepin-enriched extract of caterpillar fungus (Cordyceps militaris), would attenuate blood-spinal cord barrier (BSCB) disruption by inhibiting matrix metalloprotease (MMP)-9 activity, leading to improvement of functional outcomes after spinal cord injury (SCI)...
May 5, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28346507/olive-oil-bioactives-protect-pigs-against-experimentally-induced-chronic-inflammation-independently-of-alterations-in-gut-microbiota
#13
Martin Liehr, Alessandro Mereu, Jose Javier Pastor, Jose Carlos Quintela, Stefanie Staats, Gerald Rimbach, Ignacio Rodolfo Ipharraguerre
Subclinical chronic inflammation (SCI) is associated with impaired animal growth. Previous work has demonstrated that olive-derived plant bioactives exhibit anti-inflammatory properties that could possibly counteract the growth-depressing effects of SCI. To test this hypothesis and define the underlying mechanism, we conducted a 30-day study in which piglets fed an olive-oil bioactive extract (OBE) and their control counterparts (C+) were injected repeatedly during the last 10 days of the study with increasing doses of Escherichia coli lipopolysaccharides (LPS) to induce SCI...
2017: PloS One
https://www.readbyqxmd.com/read/28343075/an-update-on-application-of-nanotechnology-and-stem-cells-in-spinal-cord-injury-regeneration
#14
REVIEW
Kazem Nejati-Koshki, Yousef Mortazavi, Younes Pilehvar-Soltanahmadi, Sumit Sheoran, Nosratollah Zarghami
Spinal cord injury (SCI) is damage to the spinal cord that leads to sudden loss of motor and autonomic function and sensory under the level of the injury. The pathophysiological advancement of SCI is divided into two categories: primary injury and secondary injury. Due to the loss of motor, sensory, or cognitive function, a patient's quality of life is likely reduced and places a great burden on society in order to supply health care costs. Therefore, it is important to develop suitable therapeutic strategies for SCI therapy...
June 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28302458/the-effects-of-dexmedetomidine-pretreatment-on-the-pro-and-anti-inflammation-systems-after-spinal-cord-injury-in-rats
#15
Hui Rong, Zhibin Zhao, Jiying Feng, Yishan Lei, Hao Wu, Rao Sun, Zuoxia Zhang, Bailing Hou, Wei Zhang, YuE Sun, Xiaoping Gu, Zhengliang Ma, Yue Liu
Excessive inflammatory responses play important roles in the aggravation of secondary damage to an injured spinal cord. Dexmedetomidine (DEX), a selective α2-adrenoceptor agonist, has recently been implied to be neuroprotective in clinical anesthesia, but the underlying mechanism is elusive. As signaling through Toll-like receptor 4 (TLR4) and nicotinic receptors (nAChRs, notably α7nAChR) play important roles in the pro- and anti-inflammation systems in the central nervous system, respectively, this study investigated whether and how they were modulated by DEX pretreatment in a rat model of spinal cord compression...
March 14, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28298306/il-1%C3%AE-induces-nf-%C3%AE%C2%BAb-and-upregulates-microrna-372-to-inhibit-spinal-cord-injury-recovery
#16
Wei Zhou, Tongzhou Yuan, Youshui Gao, Peipei Yin, Wei Liu, Chenhao Pan, Yingjie Liu, Xiaowei Yu
Excessive inflammation including IL-1β-initiated signaling is among the earlies reactions that can cause neuronal damage following spinal cord injury (SCI). It has been suggested that microRNAs may participate in stem cell repair to facilitate functional recovery after SCI. Here we showed that in cultured human neural stem cells (hNSC) IL-1β reduced the expressions of both KIF3B (kinesin family member 3B) and NOSIP (nitric oxide synthase interacting protein), two key modulators for restricting inflammation and promoting neuronal regeneration...
March 15, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28274846/acute-granulocyte-macrophage-colony-stimulating-factor-treatment-modulates-neuroinflammatory-processes-and-promotes-tactile-recovery-after-spinal-cord-injury
#17
Sandie Thomaty, Laurent Pezard, Christian Xerri, Jean-Michel Brezun
Neuroinflammation is known to play a key role in the prognosis of functional recovery after spinal cord injury (SCI). The involvement of microglial and mast cells in early and late stages of inflammation has been receiving increasing attention. This study was aimed at determining the influence of a pro-inflammatory cytokine, the granulocyte macrophage-colony stimulating factor (GM-CSF), on microglia and mast cell activation, glial scar formation and functional recovery following SCI. Rats were randomly injected with saline or GM-CSF one hour after a C4-C5 medio-lateral hemisection...
May 4, 2017: Neuroscience
https://www.readbyqxmd.com/read/28264978/deletion-of-the-fractalkine-receptor-cx3cr1-improves-endogenous-repair-axon-sprouting-and-synaptogenesis-after-spinal-cord-injury-in-mice
#18
Camila M Freria, Jodie C E Hall, Ping Wei, Zhen Guan, Dana M McTigue, Phillip G Popovich
Impaired signaling via CX3CR1, the fractalkine receptor, promotes recovery after traumatic spinal contusion injury in mice, a benefit achieved in part by reducing macrophage-mediated injury at the lesion epicenter. Here, we tested the hypothesis that CX3CR1-dependent changes in microglia and macrophage functions also will enhance neuroplasticity, at and several segments below the injury epicenter. New data show that in the presence of inflammatory stimuli, CX3CR1-deficient (CX3CR1(-/-)) microglia and macrophages adopt a reparative phenotype and increase expression of genes that encode neurotrophic and gliogenic proteins...
March 29, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
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/28223917/gene-expression-profiling-in-the-injured-spinal-cord-of-trachemys-scripta-elegans-an-amniote-with-self-repair-capabilities
#20
Adrián Valentin-Kahan, Gabriela B García-Tejedor, Carlos Robello, Omar Trujillo-Cenóz, Raúl E Russo, Fernando Alvarez-Valin
Slider turtles are the only known amniotes with self-repair mechanisms of the spinal cord that lead to substantial functional recovery. Their strategic phylogenetic position makes them a relevant model to investigate the peculiar genetic programs that allow anatomical reconnection in some vertebrate groups but are absent in others. Here, we analyze the gene expression profile of the response to spinal cord injury (SCI) in the turtle Trachemys scripta elegans. We found that this response comprises more than 1000 genes affecting diverse functions: reaction to ischemic insult, extracellular matrix re-organization, cell proliferation and death, immune response, and inflammation...
2017: Frontiers in Molecular Neuroscience
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