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https://www.readbyqxmd.com/read/28093709/molecular-genetic-and-epigenetic-basis-of-multiple-sclerosis
#1
Zohreh Hojati
Multiple Sclerosis (MS) is a chronic immune-mediated disease of spinal cord and brain. The initial event in MS occurs when activated CD4(+) T cells in periphery exacerbates immune responses by stimulating immune cells such as B cells, CD8(+) cells, mast cells, granulocytes and monocytes. These proinflammatory cells pass blood brain barrier by secreting proinflammatory cytokines including TNF-α and INF-γ which activate adhesion factors. APCs (antigen-presenting cells) reactivate CD4(+) T cells after infiltrating the CNS and CD4(+) T cells produce cytokines and chemokines...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28093646/mechanisms-of-inhibitory-action-of-trk-130-naltalimide-a-%C3%AE-opioid-receptor-partial-agonist-on-the-micturition-reflex
#2
Morihiro Fujimura, Naoki Izumimoto, Sayoko Kanie, Ryosuke Kobayashi, Satoru Yoshikawa, Shinobu Momen, Mikito Hirakata, Toshikazu Komagata, Satoshi Okanishi, Masashi Iwata, Tadatoshi Hashimoto, Takayuki Doi, Naoki Yoshimura, Koji Kawai
PURPOSE: To clarify the mechanism of inhibitory action of TRK-130 (Naltalimide), a unique µ-opioid receptor partial agonist, on the micturition reflex. METHODS: The effect of TRK-130 on isovolumetric rhythmic bladder contractions (RBCs) was examined in guinea pigs, the effect of which was clarified by co-treatment with naloxone or in spinal cord transection. The effect of TRK-130 on urodynamic parameters was also observed in guinea pigs. In addition, the effect of TRK-130 on bladder contraction induced by peripheral stimulation of the pelvic nerve was investigated in rats...
January 16, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28091928/effects-of-no-synthase-blocker-l-name-on-functional-state-of-the-neuromotor-system-during-traumatic-disease-of-the-spinal-cord
#3
G G Yafarova, V V Andrianov, R Kh Yagudin, I I Shaikhytdinov, Kh L Gainutdinov
Functional state of the neuromotor system after administration of a nonspecific NO synthase blocker L-NAME was studied on the model of experimental contusion of the spinal cord. Electron paramagnetic resonance measurements of NO production in the damaged segment of the spinal cord were performed for estimation of the dynamics of intensity of NO production during traumatic disease of the spinal cord and selection of optimal period for L-NAME administration. The status of the neuromotor system was evaluated by stimulation electromyography...
January 16, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28089662/electroacupuncture-pretreatment-attenuates-spinal-cord-ischemia-reperfusion-injury-via-inhibition-of-high-mobility-group-box-1-production-in-a-lxa4-receptor-dependent-manner
#4
Xiao-Ling Zhu, Xin Chen, Wei Wang, Xu Li, Jia Huo, Yu Wang, Yu-Yuan Min, Bin-Xiao Su, Jian-Ming Pei
Paraplegia caused by spinal cord ischemia is a severe complication following surgeries in the thoracic aneurysm. HMGB1 has been recognized as a key mediator in spinal inflammatory response after spinal cord injury. Electroacupuncture (EA) pretreatment could provide neuroprotection against cerebral ischemic injury through inhibition of HMGB1 release. Therefore, the present study aims to test the hypothesis that EA pretreatment protects against spinal cord ischemia-reperfusion (I/R) injury via inhibition of HMGB1 release...
January 12, 2017: Brain Research
https://www.readbyqxmd.com/read/28089422/low-magnitude-mechanical-signals-and-the-spine-a-review-of-current-and-future-applications
#5
REVIEW
Martin H Pham, Zorica Buser, Jeffrey C Wang, Frank L Acosta
Animal and human studies demonstrate the anabolic properties of low-magnitude mechanical stimulation (LMMS) in its ability to improve bone formation by enhancing the proliferation of mesenchymal stem cells and their subsequent commitment down an osteoblastic lineage. Response to mechanical strains as low as 10μɛ have been seen, illustrating the sensitivity of mechanosensory cells to mechanotransduction pathways. Applications to the spine include treatment of osteoporosis in preparation for instrumented fusion, fracture reduction in spinal cord injury patients to slow bone mineral density loss, and bone tissue engineering and enhancement of bone-implant osseointegration for pseudarthrosis and hardware failure...
January 12, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28079781/transcutaneous-nerve-stimulation-for-pain-relief-during-office-hysteroscopy-a-randomized-controlled-trial
#6
Juan F Lisón, Juan J Amer-Cuenca, Silvia Piquer-Martí, Vicente Benavent-Caballer, Gemma Biviá-Roig, Alejandro Marín-Buck
OBJECTIVE: To evaluate the pain-relieving effect of transcutaneous electrical nerve stimulation (TENS) during office-based hysteroscopy without sedation. METHODS: We conducted a randomized, double-blind, placebo-controlled trial. Participants were randomly assigned to the active TENS, placebo TENS, or control group. The active TENS intervention consisted of a varying high-frequency (80-100 Hz), 400-microseconds, individually adjusted, high-intensity TENS application with two self-adhesive electrodes placed parallel to the spinal cord at the T10-L1 and S2-S4 levels...
January 9, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28079752/changes-in-dorsal-root-ganglion-gene-expression-in-response-to-spinal-cord-stimulation
#7
Dana M Tilley, David L Cedeño, Courtney A Kelley, Margaret DeMaegd, Ramsin Benyamin, Ricardo Vallejo
BACKGROUND AND OBJECTIVES: Spinal cord stimulation (SCS) has been shown to influence pain-related genes in the spinal cord directly under the stimulating electrodes. There is limited information regarding changes occurring at the dorsal root ganglion (DRG). This study evaluates gene expression in the DRG in response to SCS therapy. METHODS: Rats were randomized into experimental or control groups (n = 6 per group). Experimental animals underwent spared-nerve injury, implantation of lead, and continuous SCS (72 hours)...
January 11, 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28079472/polymorphisms-of-rps6kb1-and-cd86-associates-with-susceptibility-to-multiple-sclerosis-in-iranian-population
#8
Rasoul Abdollah Zadeh, Nazanin Jalilian, Mohammad Ali Sahraian, Zeinab Kasraian, Mohammad Reza Noori-Daloii
OBJECTIVE:  Multiple sclerosis (MS) is the most prevalent disorder of nervous system inflammation which involves demyelination of spinal cord; this process depends on both environmental and genetic susceptibility factors. In the present study, we examined the association between two SNPs in RPS6KB1 (rs180515) and CD86 (rs9282641) with MS in Iranian population. RPS6KB1gene encodes p70S6K1 protein which plays a key role in mTOR signaling pathway, while CD86 gene codes a membrane protein type I which belongs to immunoglobulin super family act on co-stimulation signaling pathway...
January 12, 2017: Neurological Research
https://www.readbyqxmd.com/read/28073938/sonic-hedgehog-guides-axons-via-zipcode-binding-protein-1-mediated-local-translation
#9
Lea Lepelletier, Sébastien D Langlois, Christopher B Kent, Kristy Welshhans, Steves Morin, Gary J Bassell, Patricia T Yam, Frédéric Charron
: Sonic hedgehog (Shh) attracts spinal cord commissural axons toward the floorplate. How Shh elicits changes in the growth cone cytoskeleton that drive growth cone turning is unknown. We find that the turning of rat commissural axons up a Shh gradient requires protein synthesis. In particular, Shh stimulation increases β-actin protein at the growth cone, even when the cell bodies have been removed. Thus Shh induces the local translation of β-actin at the growth cone. We hypothesised that this requires zipcode binding protein 1 (ZBP1), an mRNA binding protein that transports β-actin mRNA and releases it for local translation upon phosphorylation...
January 10, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28072810/high-frequency-spinal-cord-stimulation-for-complex-regional-pain-syndrome-a-case-report
#10
Joseph T Crapanzano, Lisa M Harrison-Bernard, Mark R Jones, Alan D Kaye, Erich O Richter, Mordeci N Potash
Complex regional pain syndrome (CRPS) is a chronic, debilitating, neuropathic pain condition which is often misdiagnosed, difficult to manage, and lacks proven methods for remission. Most available methods provide some relief to a small percentage of patients. Recent FDA approval and superiority of the Nevro Senza 10-kHz high frequency (HF10) spinal cord stimulation (SCS) therapy over traditional low-frequency spinal cord stimulation for treatment of chronic back and leg pain may provide a new interventional therapeutic option for patients suffering from CRPS...
January 2017: Pain Physician
https://www.readbyqxmd.com/read/28072795/treatment-outcomes-for-patients-with-failed-back-surgery
#11
Jae Hwan Cho, Jae Hyup Lee, Kwang Sup Song, Jae-Young Hong, Yoon-Suk Joo, Dong-Ho Lee, Chang Ju Hwang, Choon Sung Lee
BACKGROUND: Failed back surgery syndrome (FBSS) is a frequently encountered disease entity following lumbar spinal surgery. Although many plausible reasons have been investigated, the exact pathophysiology remains unknown. Various medications, reoperations, interventions such as spinal cord stimulation, epidural adhesiolysis or epidural injection, exercise therapy, and psychotherapy have been suggested treatment options. However, the evidence of the clinical outcome for each treatment has not been clearly determined...
January 2017: Pain Physician
https://www.readbyqxmd.com/read/28069928/functional-organization-of-cutaneous-and-muscle-afferent-synapses-onto-immature-spinal-lamina-i-projection-neurons
#12
Jie Li, Mark L Baccei
: It is well-established that sensory afferents innervating muscle are more effective at inducing hyperexcitability within spinal cord circuits compared to skin afferents, which likely contributes to the higher prevalence of chronic musculoskeletal pain compared to pain of cutaneous origin. However, the mechanisms underlying these differences in central nociceptive signaling remain incompletely understood, as nothing is known about how superficial dorsal horn (SDH) neurons process sensory input from muscle vs...
January 9, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28063935/effects-of-spinal-cord-stimulation-on-motor-functions-in-children-with-cerebral-palsy
#13
I A Solopova, I A Sukhotina, D S Zhvansky, G A Ikoeva, S V Vissarionov, A G Baindurashvili, V R Edgerton, Y P Gerasimenko, T R Moshonkina
Is it possible to regulate the functional properties of abnormally developed spinal neuronal locomotor networks using transcutaneous spinal cord stimulation? This question has been studied in twenty-eight participants (∼9 yrs) with spastic cerebral palsy, and mainly Gross Motor Function Classification System for Cerebral Palsy level III. The participants were randomly assigned to two groups. The experimental group received transcutaneous spinal cord stimulation at two spinal levels (over T11 and L1 spinous processes), combined with locomotor treadmill training, whereas the participants of the control group received locomotor treadmill training only...
January 4, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28062253/spinal-neuropeptide-expression-and-neuropathic-behavior-in-the-acute-and-chronic-phases-after-spinal-cord-injury-effects-of-progesterone-administration
#14
María F Coronel, Marcelo J Villar, Pablo R Brumovsky, Susana L González
Patients with spinal cord injury (SCI) develop chronic pain that severely compromises their quality of life. We have previously reported that progesterone (PG), a neuroprotective steroid, could offer a promising therapeutic strategy for neuropathic pain. In the present study, we explored temporal changes in the expression of the neuropeptides galanin and tyrosine (NPY) and their receptors (GalR1 and GalR2; Y1R and Y2R, respectively) in the injured spinal cord and evaluated the impact of PG administration on both neuropeptide systems and neuropathic behavior...
January 3, 2017: Peptides
https://www.readbyqxmd.com/read/28062192/direct-effects-of-glucose-insulin-glp-1-and-gip-on-bulbospinal-neurons-in-the-rostral-ventrolateral-medulla-in-neonatal-wistar-rats
#15
Naoki Oshima, Hiroshi Onimaru, Hidehito Matsubara, Takahiro Uchida, Atsushi Watanabe, Toshihiko Imakiire, Yasuhiro Nishida, Hiroo Kumagai
Although patients with diabetes mellitus (DM) often exhibit hypertension, the mechanisms responsible for this correlation are not well known. We hypothesized that the bulbospinal neurons in the rostral ventrolateral medulla (RVLM) are affected by the levels of glucose, insulin, or incretins (glucagon like peptide-1 [GLP-1] or glucose-dependent insulinotropic peptide [GIP]) in patients with DM. To investigate whether RVLM neurons are activated by glucose, insulin, GLP-1, or GIP, we examined changes in the membrane potentials of bulbospinal RVLM neurons using whole-cell patch-clamp technique during superfusion with various levels of glucose or these hormones in neonatal Wistar rats...
January 3, 2017: Neuroscience
https://www.readbyqxmd.com/read/28060839/sensory-feedback-in-interlimb-coordination-contralateral-afferent-contribution-to-the-short-latency-crossed-response-during-human-walking
#16
Sabata Gervasio, Michael Voigt, Uwe G Kersting, Dario Farina, Thomas Sinkjær, Natalie Mrachacz-Kersting
A constant coordination between the left and right leg is required to maintain stability during human locomotion, especially in a variable environment. The neural mechanisms underlying this interlimb coordination are not yet known. In animals, interneurons located within the spinal cord allow direct communication between the two sides without the need for the involvement of higher centers. These may also exist in humans since sensory feedback elicited by tibial nerve stimulation on one side (ipsilateral) can affect the muscles activation in the opposite side (contralateral), provoking short-latency crossed responses (SLCRs)...
2017: PloS One
https://www.readbyqxmd.com/read/28045856/a-multiparametric-alarm-criterion-for-motor-evoked-potential-monitoring-during-spine-deformity-surgery
#17
Martín J Segura, María E Talarico, Mariano A Noel
PURPOSE: This is a pilot study to compare changes in the amplitude, area below the curve, number of phases, duration, and latency of the intraoperative transcranial motor evoked potentials (TcMEP) for early detection of impending spinal cord injury. An empirical ratio calculated by a combination of the above-mentioned parameters was also assessed. METHODS: Intraoperative TcMEP recordings from five patients presenting with neuromuscular kyphoscoliosis, idiopathic scoliosis, achondroplasia and lumbar kyphosis, congenital kyphosis, and achondroplasia with cervical instability were reviewed...
January 2017: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/28045854/the-percentage-of-amplitude-decrease-warning-criteria-for-transcranial-mep-monitoring
#18
Henricus L Journée, Hanneke I Berends, Moyo C Kruyt
Muscle motor evoked potentials (MEPs) from transcranial electrical stimulation (TES) became a standard technique for monitoring the motor functions of the brain and spinal cord at risk during spinal and brain surgery. However, a wide range of criteria based on the percentage of amplitude decrease is used in practice. A survey of the current literature on clinical outcome parameters reveals a variety of percentages in a range of 30% to 100% (50% to 100% spinal procedures) with no consensus. The interpretation of muscle MEPs is hampered by their sensitivity to many interfering factors...
January 2017: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/28044002/abdominal-wall-type-i-complex-regional-pain-syndrome-treated-effectively-with-peripheral-nerve-field-stimulation-a-case-report
#19
Linqiu Zhou, Henry Chou, Eric Holder
Chronic abdominal wall pain is a well-documented complication of abdominal surgery. However, abdominal wall complex regional pain syndrome (CRPS) is a rare medical condition. We present a case of abdominal wall CRPS and its treatment with peripheral nerve field stimulation (PNfS). A 34-year-old female presented with right periumbilical pain for 2 years. She developed burning, sharp and stabbing pain with allodynia (extremely sensitive to wind and light touch) and erythema or pallor 2 weeks after an exploratory appendectomy...
January 2, 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28042918/the-neurostimulation-appropriateness-consensus-committee-nacc-safety-guidelines-for-the-reduction-of-severe-neurological-injury
#20
REVIEW
Timothy R Deer, Tim J Lamer, Jason E Pope, Steven M Falowski, David A Provenzano, Konstantin Slavin, Stanley Golovac, Jeffrey Arle, Joshua M Rosenow, Kayode Williams, Porter McRoberts, Samer Narouze, Sam Eldabe, Shivanand P Lad, Jose A De Andrés, Eric Buchser, Philippe Rigoard, Robert M Levy, Brian Simpson, Nagy Mekhail
INTRODUCTION: Neurostimulation involves the implantation of devices to stimulate the brain, spinal cord, or peripheral or cranial nerves for the purpose of modulating the neural activity of the targeted structures to achieve specific therapeutic effects. Surgical placement of neurostimulation devices is associated with risks of neurologic injury, as well as possible sequelae from the local or systemic effects of the intervention. The goal of the Neurostimulation Appropriateness Consensus Committee (NACC) is to improve the safety of neurostimulation...
January 2, 2017: Neuromodulation: Journal of the International Neuromodulation Society
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