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https://www.readbyqxmd.com/read/29323045/does-vitamin-c-have-the-ability-to-augment-the-therapeutic-effect-of-bone-marrow-derived-mesenchymal-stem-cells-on-spinal-cord-injury
#1
Nesrine Salem, Mohamed Y Salem, Mohammed M Elmaghrabi, Moataz A Elawady, Mona A Elawady, Dina Sabry, Ashraf Shamaa, Abdel-Haleem H Elkasapy, Noha Ibrhim, Azza Elamir
Methylprednisolone (MP) is currently the only drug confirmed to exhibit a neuroprotective effect on acute spinal cord injury (SCI). Vitamin C (VC) is a natural water-soluble antioxidant that exerts neuroprotective effects through eliminating free radical damage to nerve cells. Bone marrow mesenchymal stem cells (BMMSCs), as multipotent stem cells, are promising candidates in SCI repair. To evaluate the therapeutic effects of MP, VC and BMMSCs on traumatic SCI, 80 adult male rats were randomly divided into seven groups: control, SCI (SCI induction by weight-drop method), MP (SCI induction, followed by administration of 30 mg/kg MP via the tail vein, once every other 6 hours, for five times), VC (SCI induction, followed by intraperitoneal administration of 100 mg/kg VC once a day, for 28 days), MP + VC (SCI induction, followed by administration of MP and VC as the former), BMMSCs (SCI induction, followed by injection of 3 × 106 BMMSCs at the injury site), and BMMSCs + VC (SCI induction, followed by BMMSCs injection and VC administration as the former)...
December 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/29313911/spinal-cord-injury-arising-in-anaesthesia-practice
#2
REVIEW
D W Hewson, N M Bedforth, J G Hardman
Spinal cord injury arising during anaesthetic practice is a rare event, but one that carries a significant burden in terms of morbidity and mortality. In this article, we will review the pathophysiology of spinal cord injury. We will then discuss injuries relating to patient position, spinal cord hypoperfusion and neuraxial techniques. The most serious causes of spinal cord injury - vertebral canal haematoma, spinal epidural abscess, meningitis and adhesive arachnoiditis - will be discussed in turn. For each condition, we draw attention to practical, evidence-based measures clinicians can undertake to reduce their incidence, or mitigate their severity...
January 2018: Anaesthesia
https://www.readbyqxmd.com/read/29309710/neural-mobilization-attenuates-mechanical-allodynia-and-decreases-proinflammatory-cytokine-concentrations-in-rats-with-painful-diabetic-neuropathy
#3
Guan-Cheng Zhu, Kun-Ling Tsai, Yu-Wen Chen, Ching-Hsia Hung
Background: Painful diabetic neuropathy (PDN) is a common complication in patients with diabetes. It is related to ischemic nerve damage and the increase in the levels of proinflammatory mediators, such as tumor necrosis factor α (TNF-α) and interleukin 1β (IL-1β). Neural mobilization may have the potential to alleviate PDN, but it has not yet been tested. Also, the physiological mechanism of neural mobilization is unclear. Objective: The objective of this study was to investigate treatment effect and physiological mechanism of neural mobilization...
December 22, 2017: Physical Therapy
https://www.readbyqxmd.com/read/29285620/effect-of-the-combined-treatment-of-albumin-with-plasma-synthesised-pyrrole-polymers-on-motor-recovery-after-traumatic-spinal-cord-injury-in-rats
#4
Omar Fabela-Sánchez, Hermelinda Salgado-Ceballos, Luis Medina-Torres, Laura Álvarez-Mejía, Stephany Sánchez-Torres, Rodrigo Mondragón-Lozano, Axayácatl Morales-Guadarrama, Araceli Díaz-Ruiz, María-Guadalupe Olayo, Guillermo J Cruz, Juan Morales, Camilo Ríos, Roberto Olayo
Traumatic spinal cord injury (TSCI) is a health problem for which there is currently no treatment or definitive therapy. Medicine has explored therapeutic options for patients with TSCI with the aim to improve their quality of life. One alternative has been the development of biomaterials that offer neuroprotection or neuroregeneration of damaged nerve tissue. The microinjection of iodine-doped polypyrrole particles synthesised by plasma (PPPy/I) has shown neuroprotective effects that favour motor function recovery in experimental animals with TSCI...
December 28, 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/29248305/state-of-the-art-transforaminal-percutaneous-endoscopic-lumbar-surgery-under-local-anesthesia-discectomy-foraminoplasty-and-ventral-facetectomy
#5
REVIEW
Koichi Sairyo, Takashi Chikawa, Akihiro Nagamachi
Transforaminal (TF) percutaneous endoscopic surgery for the lumbar spine under the local anesthesia was initiated in 2003 in Japan. Since it requires only an 8-mm skin incision and damage of the paravertebral muscles would be minimum, it would be the least invasive spinal surgery at present. At the beginning, the technique was used for discectomy; thus, the procedure was called PELD (percutaneous endoscopic lumbar discectomy). TF approach can be done under the local anesthesia, there are great benefits. During the surgery patients would be in awake and aware condition; thus, severe nerve root damage can be avoided...
December 13, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29238102/prevention-and-prediction-of-postoperative-bowel-bladder-disorder-using-an-anal-plug-electrode-with-tc-msep-monitoring-during-spine-surgery
#6
Kazuyoshi Kobayashi, Kei Ando, Hideki Yagi, Kenyu Ito, Mikito Tsushima, Masayoshi Morozumi, Satoshi Tanaka, Masaaki Machino, Kyotaro Ota, Yukihiro Matsuyama, Naoki Ishiguro, Shiro Imagama
A retrospective study was performed to examine the efficacy of intraoperative monitoring of the external anal sphincter (EAS) muscle-evoked potential after a transcranial muscle-action potential (Tc-MsEP) in spinal cord surgery, and to evaluate alarm points for EAS waveform deterioration related to postoperative bowel bladder disorder (BBD). BBD is caused by damage to the hypogastric, pelvic, and pudendal nerves and leads to a significant reduction in quality of life. Intraoperative Tc-MsEP monitoring using the EAS is common to prevent neurological deficit, but the relationship of BBD with intraoperative monitoring of the EAS has not been examined...
November 2017: Nagoya Journal of Medical Science
https://www.readbyqxmd.com/read/29210293/phosphatidylcholine-attenuated-docetaxel-induced-peripheral-neurotoxicity-in-rats
#7
Sung Tae Kim, Eun Jung Kyung, Jung Sook Suh, Ho Sung Lee, Jun Ho Lee, Soo In Chae, Eon Sub Park, Yoon Hee Chung, Jinhyung Bae, Tae Jin Lee, Won Mo Lee, Uy Dong Sohn, Ji Hoon Jeong
Docetaxel is a taxane chemotherapeutic agent used in the treatment of breast cancer, prostate cancer and gastric cancer, but several side effects such as peripheral neurotoxicity could occur. The present study was designed to investigate the therapeutic potential of phosphatidylcholine (PC) on docetaxel-induced peripheral neurotoxicity. Rats were randomly divided into three groups and treated for 4 weeks. Behavioral tests were conducted to measure the effects of PC on docetaxel-induced decreases in mechanical & thermal nociceptive threshold...
December 6, 2017: Drug and Chemical Toxicology
https://www.readbyqxmd.com/read/29190980/transplanted-olfactory-ensheathing-cells-restore-retinal-function-in-a-rat-model-of-light-induced-retinal-damage-by-inhibiting-oxidative-stress
#8
Langyue Xue, Yuxiao Zeng, Qiyou Li, Yijian Li, Zhengya Li, Haiwei Xu, Zhengqin Yin
There is still not an effective treatment for continuous retinal light exposure and subsequent photoreceptor degeneration. Olfactory ensheathing cell (OEC) transplantation has been shown to be neuroprotective in spinal cord, and optic nerve injury and retinitis pigmentosa. However, whether OECs protect rat photoreceptors against light-induced damage and how this may work is unclear. Thus, to elucidate this mechanism, purified rat OECs were grafted into the subretinal space of a Long-Evans rat model with light-induced photoreceptor damage...
November 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29180893/identification-of-key-genes-and-pathways-associated-with-neuropathic-pain-in-uninjured-dorsal-root-ganglion-by-using-bioinformatic-analysis
#9
Chao-Jin Chen, De-Zhao Liu, Wei-Feng Yao, Yu Gu, Fei Huang, Zi-Qing Hei, Xiang Li
Purpose: Neuropathic pain is a complex chronic condition occurring post-nervous system damage. The transcriptional reprogramming of injured dorsal root ganglia (DRGs) drives neuropathic pain. However, few comparative analyses using high-throughput platforms have investigated uninjured DRG in neuropathic pain, and potential interactions among differentially expressed genes (DEGs) and pathways were not taken into consideration. The aim of this study was to identify changes in genes and pathways associated with neuropathic pain in uninjured L4 DRG after L5 spinal nerve ligation (SNL) by using bioinformatic analysis...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/29176310/urinary-disorders-and-marfan-syndrome-a-series-of-4-cases
#10
Claire Hentzen, Nicolas Turmel, Camille Chesnel, Frederique Le Breton, Samer Sheikh Ismael, Gérard Amarenco
Marfan syndrome is a genetic disease responsible for causing cardiovascular, eye and musculoskeletal damages. Urinary disorders are not common. We present 4 cases of chronic urinary tract symptoms, with 2 different pathophysiological processes. Three patients presented with spinal cord infarct following aortic dissection surgery. They were affected by an overactive bladder with detrusor overactivity and detrusor-sphincter dyssynergia. One patient complained of voiding dysfunction, possibly related to dural ectasia...
November 24, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/29153846/surgical-management-of-neurological-manifestations-of-mucopolysaccharidosis-disorders
#11
REVIEW
Tord D Alden, Hernán Amartino, Amauri Dalla Corte, Christina Lampe, Paul R Harmatz, Leonardo Vedolin
The mucopolysaccharidosis (MPS) disorders are ultra-rare lysosomal storage disorders associated with progressive accumulation of glycosaminoglycans (GAGs) in cells and tissues throughout the body. Clinical manifestations and progression rates vary widely across and within the different types of MPS. Neurological symptoms occur frequently, and may result directly from brain damage caused by infiltration of GAGs, or develop secondary to somatic manifestations such as spinal cord compression, hydrocephalus, and peripheral nerve entrapment...
September 28, 2017: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/29145877/trajectory-of-instantaneous-axis-of-rotation-in-fixed-lumbar-spine-with-instrumentation
#12
Masataka Inoue, Tetsutaro Mizuno, Toshihiko Sakakibara, Takaya Kato, Takamasa Yoshikawa, Tadashi Inaba, Yuichi Kasai
BACKGROUND: Several studies showed instantaneous axis of rotation (IAR) in the intact spine. However, there has been no report on the trajectory of the IAR of a damaged spine or that of a fixed spine with instrumentation. It is the aim of this study to investigate the trajectory of the IAR of the lumbar spine using the vertebra of deer. METHODS: Functional spinal units (L5-6) from five deer were evaluated with six-axis material testing machine. As specimen models, we prepared a normal model, a damaged model, and a pedicle screw (PS) model...
November 16, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29142293/neural-pathways-for-colorectal-control-relevance-to-spinal-cord-injury-and-treatment-a-narrative-review
#13
REVIEW
Brid Callaghan, John B Furness, Ruslan V Pustovit
STUDY DESIGN: Narrative review. OBJECTIVES: The purpose is to review the organisation of the nerve pathways that control defecation and to relate this knowledge to the deficits in colorectal function after SCI. METHODS: A literature review was conducted to identify salient features of defecation control pathways and the functional consequences of damage to these pathways in SCI. RESULTS: The control pathways for defecation have separate pontine centres under cortical control that influence defecation...
November 16, 2017: Spinal Cord
https://www.readbyqxmd.com/read/29140459/rbm45-competes-with-hdac1-for-binding-to-fus-in-response-to-dna-damage
#14
Juanjuan Gong, Min Huang, Fengli Wang, Xiaolu Ma, Hongmei Liu, Yingfeng Tu, Lingyu Xing, Xuefei Zhu, Hui Zheng, Junjie Fang, Xiaoling Li, Qiaochu Wang, Jiuqiang Wang, Zhongshuai Sun, Xi Wang, Yun Wang, Caixia Guo, Tie-Shan Tang
DNA damage response (DDR) is essential for genome stability and human health. Recently, several RNA binding proteins (RBPs), including fused-in-sarcoma (FUS), have been found unexpectedly to modulate this process. The role of FUS in DDR is closely linked to the pathogenesis of amyotrophic lateral sclerosis (ALS), a progressive neurodegenerative disease that affects nerve cells in the brain and the spinal cord. Given that RBM45 is also an ALS-associated RBP, we wondered whether RBM45 plays any function during this process...
November 13, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29138827/gambogic-acid-inhibits-spinal-cord-injury-and-inflammation-through-suppressing-the-p38-and-akt-signaling-pathways
#15
Qiao Fu, Chaojian Li, Lehua Yu
Gamboge is the dry resin secreted by Garcinia hanburyi Hook.f, with the function of promoting blood circulation, detoxification, hemostasis and killing insects, used for the treatment of cancer, brain edema and other diseases. Gambogic acid is the main effective constituent of Gamboge. The present study investigated the protective effects of gambogic acid on spinal cord injury (SCI) and its anti‑inflammatory mechanism in an SCI model in vivo. Basso, Beattie and Bresnahan (BBB) testing was used to detect the protective effects of gambogic acid on nerve function of SCI rats...
November 10, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29132542/impact-of-inflammation-on-the-blood-neural-barrier-and-blood-nerve-interface-from-review-to-therapeutic-preview
#16
Stephen D Skaper
A number of nervous system disorders are characterized by a state of inflammation (neuroinflammation) in which members of the innate immune system, most notably mast cells and microglia-acting as single entities and in unison-produce inflammatory molecules that play major roles. A neuroinflammatory environment can weaken not only blood-nerve and blood-brain barrier (BBB) integrity but also that of the blood-spinal cord barrier. Mast cells, with their distribution in peripheral nerves and the central nervous system, are positioned to influence blood-nerve barrier characteristics...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/29118920/combination-therapy-with-extracorporeal-shock-wave-and-melatonin-markedly-attenuated-neuropathic-pain-in-rat
#17
Kuan-Hung Chen, Chien-Hui Yang, Christopher Glenn Wallace, Chung-Ren Lin, Chia-Kai Liu, Tsung-Cheng Yin, Tien-Hung Huang, Yi-Ling Chen, Cheuk-Kwan Sun, Hon-Kan Yip
This study tested the hypothesis that combination therapy using extracorporeal shock wave (ECSW)-melatonin (Mel) was superior to either alone at ameliorating neuropathic pain (NP). NP was induced by chronic constriction injury (CCI) to the left sciatic nerve in rats. Animals were categorized into sham control (group 1), CCI only (group 2), CCI-ECSW (group 3), CCI-Mel (group 4) and CCI-ECSW-Mel (group 5). By days 2 and 8 after CCI, the mechanical paw withdrawal threshold (MPWT)/thermal paw withdrawal latency (TPWL) were highest in group 2, lowest in group 1, significantly lower in group 5 than in groups 3 and 4 (all p<0...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/29105512/changes-in-the-metabolome-and-microrna-levels-in-biological-fluids-might-represent-biomarkers-of-neurotoxicity-a-trimethyltin-study
#18
Syed Z Imam, Zhen He, Elvis Cuevas, Hector Rosas-Hernandez, Susan M Lantz, Sumit Sarkar, James Raymick, Bonnie Robinson, Joseph P Hanig, David Herr, Denise MacMillan, Aaron Smith, Serguei Liachenko, Sherry Ferguson, James O'Callaghan, Diane Miller, Christopher Somps, Ingrid D Pardo, William Slikker, Jennifer B Pierson, Ruth Roberts, Binsheng Gong, Weida Tong, Michael Aschner, Mary J Kallman, David Calligaro, Merle G Paule
Neurotoxicity has been linked with exposure to a number of common drugs and chemicals, yet efficient, accurate, and minimally invasive methods to detect it are lacking. Fluid-based biomarkers such as those found in serum, plasma, urine, and cerebrospinal fluid have great potential due to the relative ease of sampling but at present, data on their expression and translation are lacking or inconsistent. In this pilot study using a trimethyl tin rat model of central nervous system toxicity, we have applied state-of-the-art assessment techniques to identify potential individual biomarkers and patterns of biomarkers in serum, plasma, urine or cerebral spinal fluid that may be indicative of nerve cell damage and degeneration...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29080031/ikd-current-in-cold-transduction-and-damage-triggered-cold-hypersensitivity
#19
Alejandro González, Gaspar Herrera, Gonzalo Ugarte, Carlos Restrepo, Ricardo Piña, María Pertusa, Patricio Orio, Rodolfo Madrid
In primary sensory neurons of the spinal and trigeminal somatosensory system, cold-sensitivity is strongly dependent on the functional balance between TRPM8 channels, the main molecular entity responsible for the cold-activated excitatory current, and Shaker-like Kv1.1-1.2 potassium channels, the molecular counterpart underlying the excitability brake current IKD. This slow-inactivating outward K(+) current reduces the excitability of cold thermoreceptor neurons increasing their thermal threshold, and prevents unspecific activation by cold of neurons of other somatosensory modalities...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29079733/analgesic-effects-and-pharmacologic-mechanisms-of-the-gelsemium-alkaloid-koumine-on-a-rat-model-of-postoperative-pain
#20
Bo-Jun Xiong, Ying Xu, Gui-Lin Jin, Ming Liu, Jian Yang, Chang-Xi Yu
Postoperative pain (POP) of various durations is a common complication of surgical procedures. POP is caused by nerve damage and inflammatory responses that are difficult to treat. The neuroinflammation-glia-steroid network is known to be important in POP. It has been reported that the Gelsemium alkaloid koumine possesses analgesic, anti-inflammatory and neurosteroid modulating activities. This study was undertaken to test the analgesic effects of koumine against POP and explore the underlying pharmacologic mechanisms...
October 27, 2017: Scientific Reports
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