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SCI, Inflammation

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https://www.readbyqxmd.com/read/28073317/activation-of-kcnq-channels-suppresses-spontaneous-activity-in-drg-neurons-and-reduces-chronic-pain-after-spinal-cord-injury
#1
Zizhen Wu, Lin Li, Fuhua Xie, Junhui Du, Yan Zuo, Jeffrey A Frost, Susan M Carlton, Edgar T Walters, Qing Yang
A majority of people who have sustained spinal cord injury (SCI) experience chronic pain after injury, and this pain is highly resistant to available treatments. Contusive SCI in rats at T10 results in hyperexcitability of primary sensory neurons, which contributes to chronic pain. KCNQ channels are widely expressed in nociceptive dorsal root ganglion (DRG) neurons, are important for controlling their excitability, and their activation has proven effective in reducing pain in peripheral nerve injury and inflammation models...
January 10, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28056790/immunization-with-neural-derived-peptides-plus-scar-removal-induces-a-permissive-microenvironment-and-improves-locomotor-recovery-after-chronic-spinal-cord-injury
#2
Roxana Rodríguez-Barrera, Adrián Flores-Romero, Ana María Fernández-Presas, Elisa García-Vences, Raúl Silva-García, Mina Konigsberg, Liliana Blancas-Espinoza, Vinnitsa Buzoianu-Anguiano, Karla Soria-Zavala, Paola Suárez-Meade, Antonio Ibarra
BACKGROUND: Immunization with neural derived peptides (INDP) as well as scar removal-separately-have shown to induce morphological and functional improvement after spinal cord injury (SCI). In the present study, we compared the effect of INDP alone versus INDP with scar removal on motor recovery, regeneration-associated and cytokine gene expression, and axonal regeneration after chronic SCI. Scar removal was conducted through a single incision with a double-bladed scalpel along the stump, and scar renewal was halted by adding α,α'-dipyridyl...
January 5, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28039398/spinal-cord-injury-modulates-the-lung-inflammatory-response-in-mechanically-ventilated-rats-a-comparative-animal-study
#3
Karine Truflandier, Eric Beaumont, Karim Maghni, Michel De Marchie, Emmanuel Charbonney, Jadranka Spahija
Mechanical ventilation (MV) is widely used in spinal injury patients to compensate for respiratory muscle failure. MV is known to induce lung inflammation, while spinal cord injury (SCI) is known to contribute to local inflammatory response. Interaction between MV and SCI was evaluated in order to assess the impact it may have on the pulmonary inflammatory profile. Sprague Dawley rats were anesthetized for 24 h and randomized to receive either MV or not. The MV group included C4-C5 SCI, T10 SCI and uninjured animals...
December 2016: Physiological Reports
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/28025442/clinical-efficacy-of-a-1-matricaria-chamomile-l-mouthwash-and-0-12-chlorhexidine-for-gingivitis-control-in-patients-undergoing-orthodontic-treatment-with-fixed-appliances
#5
Paula Goes, Caio S Dutra, Mário R P Lisboa, Delane V Gondim, Renata Leitão, Gerly A C Brito, Rodrigo O Rego
This pilot study evaluated the clinical efficacy of a mouthwash containing 1% Matricaria chamomilla L. (MTC) extract in reducing gingival inflammation and plaque formation in patients undergoing orthodontic treatment with fixed appliances. This randomized, double-blind, placebo-controlled study enrolled a total of 30 males and females (age, 10-40 years) with fixed orthodontic appliances and a minimum of 20 natural teeth. The participants were allocated to three groups (n = 10 each) and asked to rinse with 15 mL of a placebo, 0...
2016: Journal of Oral Science
https://www.readbyqxmd.com/read/28025439/human-soluble-receptor-for-advanced-glycation-end-products-and-tumor-necrosis-factor-%C3%AE-as-gingival-crevicular-fluid-and-serum-markers-of-inflammation-in-chronic-periodontitis-and-type-2-diabetes
#6
Sandeep Singhal, Avani R Pradeep, Dharmendra Kanoriya, Vibhuti Garg
The present study aimed to evaluate the levels of soluble receptor for advanced glycation end products (sRAGE) and tumor necrosis factor-α (TNF-α) in serum and gingival crevicular fluid (GCF) in chronic periodontitis (CP) patients with and without type 2 diabetes mellitus (T2DM). A total of 70 subjects were divided into four groups: group 1 (n = 15; subjects with healthy periodontium); group 2 (n = 20; CP patients); group 3 (n = 20; CP patients with T2DM); and group 4 (n = 15; CP patients without T2DM). The serum and GCF levels of human sRAGE and TNF-α were assessed using enzyme-linked immunosorbent assay and correlated with clinical parameters, including probing depth, gingival index and clinical attachment level...
2016: Journal of Oral Science
https://www.readbyqxmd.com/read/28025432/visfatin-levels-in-gingival-crevicular-fluid-and-serum-before-and-after-non-surgical-treatment-for-periodontal-diseases
#7
Çiğdem Coşkun Türer, Umut Balli, Berrak Güven, Burcu Özkan Çetinkaya, Gonca Çayır Keleş
The purpose of this study was to evaluate visfatin levels at different stages of periodontal disease and in healthy tissues. In addition, the effect of non-surgical periodontal therapy on visfatin levels in gingival crevicular fluid and serum was investigated. Forty-five patients were divided into three groups based on clinical and radiographical findings. Group 1 comprised periodontally healthy individuals (n = 15); group 2 comprised patients with gingivitis (n = 15); and group 3 was composed of patients with generalized chronic periodontitis (n = 15)...
2016: Journal of Oral Science
https://www.readbyqxmd.com/read/27994070/characterization-of-meningeal-type-2-innate-lymphocytes-and-their-response-to-cns-injury
#8
Sachin P Gadani, Igor Smirnov, Ashtyn T Smith, Christopher C Overall, Jonathan Kipnis
The meningeal space is occupied by a diverse repertoire of immune cells. Central nervous system (CNS) injury elicits a rapid immune response that affects neuronal survival and recovery, but the role of meningeal inflammation remains poorly understood. Here, we describe type 2 innate lymphocytes (ILC2s) as a novel cell type resident in the healthy meninges that are activated after CNS injury. ILC2s are present throughout the naive mouse meninges, though are concentrated around the dural sinuses, and have a unique transcriptional profile...
December 19, 2016: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/27994015/newly-formed-endothelial-cells-regulate-myeloid-cell-activity-following-spinal-cord-injury-via-expression-of-cd200-ligand
#9
Merav Cohen, Hila Ben-Yehuda, Ziv Porat, Catarina Raposo, Siamon Gordon, Michal Schwartz
: The central nervous system (CNS) is endowed with several immune-related mechanisms that contribute to its protection and maintenance in homeostasis and under pathology. Here, we discovered an additional mechanism that controls inflammatory responses within the CNS milieu under injurious conditions, involving CD200 ligand (CD200L) expressed by newly-formed endothelial cells. We observed that CD200L is constitutively expressed in the mouse healthy CNS by endothelial cells of the blood-cerebrospinal fluid barrier and of the spinal cord meninges, but not by the endothelium of the blood-spinal cord barrier...
December 19, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27957787/macrophage-polarization-a-key-event-in-the-secondary-phase-of-acute-spinal-cord-injury
#10
Xiangyi Kong, Jun Gao
Acute spinal cord injury (SCI) has become epidemic in modern society. Despite advances made in the understanding of the pathogenesis and improvements in early recognition and treatment, it remains a devastating event, often producing severe and permanent disability. SCI has two phases: acute and secondary. Although the acute phase is marked by severe local and systemic events such as tissue contusion, ischaemia, haemorrhage and vascular damage, the outcome of SCI are mainly influenced by the secondary phase...
December 13, 2016: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/27941025/a-novel-rac1-gspt1-signaling-pathway-controls-astrogliosis-following-central-nervous-system-injury
#11
Taiji Ishii, Takehiko Ueyama, Michiko Shigyo, Masaaki Kohta, Takeshi Kondoh, Tomoharu Kuboyama, Tatsuya Uebi, Takeshi Hamada, David H Gutmann, Atsu Aiba, Eiji Kohmura, Chihiro Tohda, Naoaki Saito
Astrogliosis (i.e., glial scar), which is comprised primarily of proliferated astrocytes at the lesion site and migrated astrocytes from neighboring regions, is one of the key reactions in determining outcomes after CNS injury. In an effort to identify potential molecules/pathways that regulate astrogliosis, we sought to determine whether Rac/Rac-mediated signaling in astrocytes represents a novel candidate for therapeutic intervention following CNS injury. For these studies, we generated Rac1-knockout (KO) mice under the control of the glial fibrillary acidic protein (GFAP) promoter (GFAP-Cre;Rac1(flox/flox))...
December 9, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27931169/a-mouse-model-of-bilateral-cervical-contusion-compression-spinal-cord-injury
#12
Nicole Forgione, Mahmood Chamankhah, Michael G Fehlings
Cervical spinal cord injury (cSCI) occurs in over half of all cases of traumatic spinal cord injury (SCI), yet we lack therapies that can generate significant functional recovery in these patients. The development of animal models of cSCI will aid in the pre-clinical assessment of therapies and in understanding basic pathophysiological mechanisms. Here, we describe a clinically relevant model of cervical contusion-compression injury in the mouse. Using a modified aneurysm clip, we generated a bilateral, incomplete injury that mimics contusion-compression injuries most commonly observed in humans...
January 18, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/27924525/a-three-day-consecutive-fingolimod-administration-improves-neurological-functions-and-modulates-multiple-immune-responses-of-cci-mice
#13
Chuang Gao, Yu Qian, Jinhao Huang, Dong Wang, Wanqiang Su, Peng Wang, Linyue Guo, Wei Quan, Shuo An, Jianning Zhang, Rongcai Jiang
Excessive inflammation after traumatic brain injury (TBI) is a major cause of secondary TBI. Though several inflammatory biomarkers have been postulated as the risk factors of TBI, there has not been any comprehensive description of them. Fingolimod, a new kind of immunomodulatory agent which can diminish various kinds of inflammatory responses, has shown additional therapeutic effects in the treatment of intracranial cerebral hematoma (ICH), ischemia, spinal cord injury (SCI), and many other CNS disorders...
December 6, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27889959/fumaric-acid-esters-attenuate-secondary-degeneration-following-spinal-cord-injury
#14
Marika Cordaro, Giovanna Casili, Irene Paterniti, Salvatore Cuzzocrea, Emanuela Esposito
Spinal cord injury (SCI) causes permanent changes in motor, sensory and autonomic functions. Unfortunately, there are not a stable cures and current treatments include surgical decompression, methylprednisolone and hemodynamic control that lead to modest function recovery. Fumaric acid esters (FAEs) were firstly used in the management of an immunological skin disorder, such as psoriasis. Because of their potent anti-inflammatory effects, they have been introduced in multiple sclerosis. Investigation shown not only anti-inflammatory, but also supposed neuroprotective mechanism of action...
November 27, 2016: Journal of Neurotrauma
https://www.readbyqxmd.com/read/27878119/the-role-of-microrna-markers-in-the-diagnosis-treatment-and-outcome-prediction-of-spinal-cord-injury
#15
REVIEW
Nikolay L Martirosyan, Alessandro Carotenuto, Arpan A Patel, M Yashar S Kalani, Kaan Yagmurlu, G Michael Lemole, Mark C Preul, Nicholas Theodore
Spinal cord injury (SCI) is a devastating condition that affects many people worldwide. Treatment focuses on controlling secondary injury cascade and improving regeneration. It has recently been suggested that both the secondary injury cascade and the regenerative process are heavily regulated by microRNAs (miRNAs). The measurement of specific biomarkers could improve our understanding of the disease processes, and thereby provide clinicians with the opportunity to guide treatment and predict clinical outcomes after SCI...
2016: Frontiers in Surgery
https://www.readbyqxmd.com/read/27865778/curcumin-inhibits-glial-scar-formation-by-suppressing-astrocyte-induced-inflammation-and-fibrosis-in-vitro-and-in-vivo
#16
Jichao Yuan, Wei Liu, Haitao Zhu, Yaxing Chen, Xuan Zhang, Lan Li, Weihua Chu, Zexian Wen, Hua Feng, Jiangkai Lin
Spinal cord injury (SCI) leads to glial scar formation by astrocytes, which severely hinders neural regeneration. Curcumin (cur) can inhibit glial scar formation, but the underlying mechanism is not fully understood. Using both in vivo and in vitro experiments, the current study investigated the phenotypic transformation of astrocytes following cur and siRNA intervention during the processes of inflammation and fibrosis and determined details of the relationship between cur treatment and the glial scar components GFAP and CSPG...
January 15, 2017: Brain Research
https://www.readbyqxmd.com/read/27847197/synchrotron-radiation-micro-ct-as-a-novel-tool-to-evaluate-the-effect-of-agomir-210-in-a-rat-spinal-cord-injury-model
#17
Yong Cao, Tian-Ding Wu, Hao Wu, Ye Lang, Dong-Zhe Li, Shuang-Fei Ni, Hong-Bin Lu, Jian-Zhong Hu
MicroRNA-210 (miR-210) was initially reported to be associated with hypoxia and plays a vital role in modulating angiogenesis. However, the potential effect and underlying mechanisms of miR-210 activity in rat spinal cord injury (SCI) have not yet been fully illuminated. In the present study, differential microRNA expression after SCI was determined by Microarray analysis. To explore the effect of miR-210 after SCI, we intrathecally injected agomir-210 with Alzet Osmotic Pumps to up-regulated the endogenous miR-210 expression...
January 15, 2017: Brain Research
https://www.readbyqxmd.com/read/27836325/the-upregulation-of-annexin-a2-after-spinal-cord-injury-in-rats-may-have-implication-for-astrocyte-proliferation
#18
Jiajia Chen, Zhiming Cui, Saishuai Yang, Chunshuai Wu, Weidong Li, Guofeng Bao, Guanhua Xu, Yuyu Sun, Lingling Wang, Jinlong Zhang
Annexin A2 (ANXA2), is a member of the annexin family of proteins that exhibit Ca(2+)-dependent binding to phospholipids. One attractive biological function of ANXA2 is participating in DNA synthesis and cell proliferation. Previous studies have shown that ANXA2 play a role in the development of the central nervous system. However, the biological function of ANXA2 after spinal cord injury (SCI) is still with limited acquaintance. In the present study, we performed a SCI model in adult rats and investigated the dynamic changes of ANXA2 expression in the spinal cord...
October 27, 2016: Neuropeptides
https://www.readbyqxmd.com/read/27834292/mesenteric-vascular-dysregulation-and-intestinal-inflammation-accompanies-experimental-spinal-cord-injury
#19
Emily M Besecker, Gina M Deiter, Nicole Pironi, Timothy K Cooper, Gregory M Holmes
Cervical and high thoracic spinal cord injury (SCI) drastically impairs autonomic nervous system function. Individuals with SCI at thoracic spinal level 5 (T5) or higher often present cardiovascular disorders that include resting systemic arterial hypotension. Gastrointestinal (GI) tissues are critically dependent upon adequate blood flow and even brief periods of visceral hypoxia triggers GI dysmotility. The aim of this study was to test the hypothesis that T3-SCI induces visceral hypoperfusion, diminished postprandial vascular reflexes, and concomitant visceral inflammation...
January 1, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/27737726/neural-stem-cell-conditioned-medium-suppresses-inflammation-and-promotes-spinal-cord-injury-recovery
#20
Zhijian Cheng, Dale B Bosco, Li Sun, Xiaoming Chen, Yunsheng Xu, Wenjiao Tai, Ruth Didier, Jinhua Li, Jianqing Fan, Xijing He, Yi Ren
Spinal cord injury (SCI) causes functional impairment as a result of the initial injury followed by secondary injury mechanism. SCI provokes an inflammatory response that causes secondary tissue damage and neurodegeneration. While, the use of neural stem cell (NSC) engraftment to mitigate secondary injury has been of interest to many researchers, it still faces several limitations. As such, we investigated if NSC-conditioned media (NSC-M) possesses therapeutic potential for the treatment of SCI. It has been proposed that many of the beneficial effects attributed to stem cell therapies are due to secreted factors...
October 12, 2016: Cell Transplantation
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