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Sciatic neuropathy

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https://www.readbyqxmd.com/read/27901476/the-change-of-hcn1-hcn2-mrna-expression-in-peripheral-nerve-after-chronic-constriction-injury-induced-neuropathy-followed-by-pulsed-electromagnetic-field-therapy
#1
Hui Liu, Jun Zhou, Lianbing Gu, Yunxia Zuo
Neuropathic pain is usually defined as a chronic pain state caused by peripheral or central nerve injury as a result of acute damage or systemic diseases. It remains a difficult disease to treat. Recent studies showed that the frequency of action potentials in nociceptive afferents is affected by the activity of hyperpolarization-activated cyclic nucleotide-gated cation channels (HCN) family. In the current study, we used a neuropathy rat model induced by chronic constriction injury (CCI) of sciatic nerve to evaluate the change of expression of HCN1/HCN2 mRNA in peripheral nerve and spinal cord...
November 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/27900300/treatment-of-proximal-hamstring-tendinopathy-related-sciatic-nerve-entrapment-presentation-of-an-ultrasound-guided-intratissue-percutaneous-electrolysis-application
#2
Gabriele Mattiussi, Carlos Moreno
BACKGROUND: Proximal Hamstring Tendinopathy-related Sciatic Nerve Entrapment (PHTrSNE) is a neuropathy caused by fibrosis interposed between the semimembranosus tendon and the sciatic nerve, at the level of the ischial tuberosity. METHODS: Ultrasound-guided Intratissue Percutaneous Electrolysis (US-guided EPI) involves galvanic current transfer within the treatment target tissue (fibrosis) via a needle 0.30 to 0.33 mm in diameter. The galvanic current in a saline solution instantly develops the chemical process of electrolysis, which in turn induces electrochemical ablation of fibrosis...
April 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/27882113/peripheral-neuropathy-outcomes-and-efficacy-of-subcutaneous-bortezomib-when-combined-with-thalidomide-and-dexamethasone-in-the-treatment-of-multiple-myeloma
#3
Hong Liu, Ruirong Xu, Hongming Huang
Due to the safety, convenience and efficacy of subcutaneous administration of bortezomib (scBor), it is becoming increasingly common to treat multiple myeloma (MM) using this treatment method. The current retrospective study suggested a lower incidence of peripheral neuropathy (PN) outcomes and superior efficacy following treatment with scBor combined with thalidomide and dexamethasone (VTD) in MM when compared with intravenous Bor (ivBor) treatment. The data of 81 patients from the Affiliated Hospital of Nantong University between September 2011 and February 2014 were analyzed, including 37 scBor and 44 ivBor patients administered a median (range) of 5...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27881053/oxytocin-provides-protection-against-diabetic-polyneuropathy-in-rats
#4
Oytun Erbas, Dilek Taşkıran, Fatih Oltulu, Altuğ Yavaşoğlu, Saylav Bora, Okan Bilge, Bilge Piri Çınar, Gönül Peker
PURPOSE: The aim of the present study is to investigate the protective effects of oxytocin (OT) on diabetic neuropathy (DNP) in rats. MATERIALS AND METHODS: Eighteen rats were used to induce diabetes using single dose streptozotocin (STZ, 60 mg/kg). Diabetic DNP was verified by electromyography (EMG) and motor function test on 21st day following STZ injection. Six rats served as naïve control group and received no drug (n = 6). Following EMG, diabetic rats were randomly divided into three groups and administered with either 1 ml/kg saline or 80 μg/kg OT or 160 μg/kg OT intraperitoneally for four weeks...
November 24, 2016: Neurological Research
https://www.readbyqxmd.com/read/27857760/galanin-and-its-receptor-system-promote-the-repair-of-injured-sciatic-nerves-in-diabetic-rats
#5
Xiao-Feng Xu, Dan-Dan Zhang, Jin-Chi Liao, Li Xiao, Qing Wang, Wei Qiu
Various studies have reported that galanin can promote axonal regeneration of dorsal root ganglion neurons in vitro and inhibit neuropathic pain. However, little is known about its effects on diabetic peripheral neuropathy, and in vivo experimental data are lacking. We hypothesized that repeated applications of exogenous galanin over an extended time frame may also repair nerve damage in diabetic peripheral neuropathy, and relieve pain in vivo. We found that neuropathic pain occurred in streptozotocin-induced diabetic rats and was more severe after sciatic nerve pinch injury at 14 and 28 days than in diabetic sham-operated rats...
September 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/27854215/characterization-of-new-transgenic-mouse-models-for-two-charcot-marie-tooth-causing-hspb1-mutations-using-the-rosa26-locus
#6
Delphine Bouhy, Thomas Geuens, Vicky De Winter, Leonardo Almeida-Souza, Istvan Katona, Joachim Weis, Tino Hochepied, Steven Goossens, Jody J Haigh, Sophie Janssens, Vincent Timmerman
BACKGROUND: Charcot-Marie-Tooth (CMT) and associated neuropathies, the most common inherited diseases of the peripheral nervous system, remain so far incurable. Three existing murine models of Charcot-Marie-Tooth type 2F (CMT2F) and/or distal hereditary motor neuropathy type IIb (dHMNIIb), caused by mutations in the small heat shock protein B1 gene (HSPB1/HSP27), partially recapitulate the hallmarks of peripheral neuropathy. Because these models overexpress the HSPB1 mutant proteins they differ from the patients' situation...
May 27, 2016: Journal of Neuromuscular Diseases
https://www.readbyqxmd.com/read/27818385/contactin-associated-protein-1-cntnap1-mutations-induce-characteristic-lesions-of-the-paranodal-region
#7
Jean-Michel Vallat, Mathilde Nizon, Alex Magee, Bertrand Isidor, Laurent Magy, Yann Péréon, Laurence Richard, Robert Ouvrier, Benjamin Cogné, Jérôme Devaux, Stephan Zuchner, Stéphane Mathis
Congenital hypomyelinating neuropathy is a rare neonatal syndrome responsible for hypotonia and weakness. Nerve microscopic examination shows amyelination or hypomyelination. Recently, mutations in CNTNAP1 have been described in a few patients. CNTNAP1 encodes contactin-associated protein 1 (caspr-1), which is an essential component of the paranodal junctions of the peripheral and central nervous systems, and is necessary for the establishment of transverse bands that stabilize paranodal axo-glial junctions...
November 6, 2016: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/27788593/paraquat-induces-peripheral-myelin-disruption-and-locomotor-defects-crosstalk-with-lxr-and-wnt-pathways
#8
Mehdi Hichor, Nirmal Kumar Sampathkumar, Julia Montanaro, Didier Borderie, Patrice X Petit, Victor Gorgievski, Eleni T Tzavara, Assaad Antoine Eid, Frederic Charbonnier, Julien Grenier, Charbel Massaad
AIMS: Paraquat (PQT), a redox-active herbicide, is a free radical producing molecule, causing damages particularly to the nervous system thus employed as an animal model for Parkinson's disease. However, its impact on peripheral nerve demyelination is still unknown. Our aim is to decipher the influence of PQT-induced ROS production on peripheral myelin. RESULTS: We report that PQT provokes severe locomotor and sensory defects in mice. PQT elicited an oxidative stress in the nerve, resulting in an increase of lipid peroxidation and protein carbonylation despite the induction of Nrf2-dependant antioxidant defenses...
October 27, 2016: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/27782944/chronic-sciatic-neuropathy-in-rat-reduces-voluntary-wheel-running-activity-with-concurrent-chronic-mechanical-allodynia
#9
Ryan A Whitehead, Nicholas L Lam, Melody S Sun, Joshua Sanchez, Shahani Noor, Arden G Vanderwall, Timothy R Petersen, Hugh B Martin, Erin D Milligan
BACKGROUND: Animal models of peripheral neuropathy produced by a number of manipulations are assessed for the presence of pathologic pain states such as allodynia. Although stimulus-induced behavioral assays are frequently used and important to examine allodynia (ie, sensitivity to light mechanical touch; von Frey fiber test), other measures of behavior that reflect overall function are not only complementary to stimulus-induced responsive measures, but are also critical to gain a complete understanding of the effects of the pain model on quality of life, a clinically relevant aspect of pain on general function...
October 24, 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27770785/bogijetong-decoction-and-its-active-herbal-components-protect-the-peripheral-nerve-from-damage-caused-by-taxol-or-nerve-crush
#10
So Hyun Ahn, In Ae Chang, Ki-Joong Kim, Chul-Jung Kim, Uk Namgung, Chung-Sik Cho
BACKGROUND: Bogijetong decoction (BGJTD) is a herbal drug formulation used in the traditional Asian medicine to treat neuropathic insults associated with diabetes and anticancer therapy. To understand the biological basis of BGJTD on protective effects against neuropathy, we investigated physiological and biochemical responses of the sciatic nerves deranged by taxol injection or crush injury in the rats. METHODS: Dissociated Schwann cells and neurons were prepared from the sciatic nerve and dorsal root ganglia (DRG) respectively and were treated with taxol and BGJTD...
October 22, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27756190/comparison-of-sensory-tests-and-neuronal-quantity-of-peripheral-nerves-between-streptozotocin-stz-induced-diabetic-rats-and-paclitaxel-pac-treated-rats
#11
Heung Yong Jin, Na Young Lee, Hyun A Ko, Kyung Ae Lee, Tae Sun Park
Although diabetic peripheral neuropathy (DPN) and chemotherapy-induced peripheral neuropathy (CIPN) are different disease entities, they share similar neuropathic symptoms that impede quality of life for these patients. Despite having very similar downstream effects, there have been no direct comparisons between DPN and CIPN with respect to symptom severity and therapeutic responses. We compared peripheral nerve damage due to hyperglycemia with that caused by paclitaxel (PAC) treatment as represented by biochemical parameters, diverse sensory tests, and immunohistochemistry of cutaneous and sciatic nerves...
September 2016: Somatosensory & Motor Research
https://www.readbyqxmd.com/read/27743736/effects-of-small-fiber-neuropathy-induced-by-resiniferatoxin-on-skin-healing-and-axonal-regrowth-after-burn
#12
Betty Laverdet, Dorothée Girard, Audrey Bayout, Nelly Bordeau, Claire Demiot, Alexis Desmoulière
BACKGROUND: Damage to the peripheral nervous system influences wound healing and, after a deep burn, imperfect cutaneous nerve regeneration occurs. A third-degree burn model was developed in rats combined with the use of resiniferatoxin (RTX), known to promote sensory neuropathy. METHODS: Rats were injected intraperitoneally either with RTX or vehicle. A mechanical sensory assay and the hot plate thermal sensory test were performed. The structural integrity of the sciatic nerve was assessed using transmission electron microcopy...
October 12, 2016: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/27741280/novel-anti-adhesive-cmc-pe-hydrogel-significantly-enhanced-morphological-and-physiological-recovery-after-surgical-decompression-in-an-animal-model-of-entrapment-neuropathy
#13
Hideki Urano, Katsuyuki Iwatsuki, Michiro Yamamoto, Tetsuro Ohnisi, Shigeru Kurimoto, Nobuyuki Endo, Hitoshi Hirata
We developed a novel hydrogel derived from sodium carboxymethylcellulose (CMC) in which phosphatidylethanolamine (PE) was introduced into the carboxyl groups of CMC to prevent perineural adhesions. This hydrogel has previously shown excellent anti-adhesive effects even after aggressive internal neurolysis in a rat model. Here, we confirmed the effects of the hydrogel on morphological and physiological recovery after nerve decompression. We prepared a rat model of chronic sciatic nerve compression using silicone tubing...
2016: PloS One
https://www.readbyqxmd.com/read/27729792/traditional-chinese-medicine-yisui-tongjing-relieved-neural-severity-in-experimental-autoimmune-neuritis-rat-model
#14
Erli Zhang, Mingquan Li, Jianjun Zhao, Yuxiang Dong, Xueqin Yang, Jingbo Huang
OBJECTIVE: To study the effect of Yisui Tongjing (YSTJ) prescription on motor nerve conduction velocity (MNCV) and microstructure of the sciatic nerve in experimental autoimmune neuritis (EAN) rats, the Guillain-Barré syndrome classic animal models. MATERIALS AND METHODS: In this study, we established an EAN model in Lewis rats by immunization. We evaluated the potential clinical application of a traditional Chinese medicine YSTJ by intragastric administration and compared its effect with immunoglobulin...
2016: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/27717401/adoptive-transfer-of-m2-macrophages-reduces-neuropathic-pain-via-opioid-peptides
#15
Maria Pannell, Dominika Labuz, Melih Ö Celik, Jacqueline Keye, Arvind Batra, Britta Siegmund, Halina Machelska
BACKGROUND: During the inflammation which occurs following nerve damage, macrophages are recruited to the site of injury. Phenotypic diversity is a hallmark of the macrophage lineage and includes pro-inflammatory M1 and anti-inflammatory M2 populations. Our aim in this study was to investigate the ability of polarized M0, M1, and M2 macrophages to secrete opioid peptides and to examine their relative contribution to the modulation of neuropathic pain. METHODS: Mouse bone marrow-derived cells were cultured as unstimulated M0 macrophages or were stimulated into an M1 phenotype using lipopolysaccharide and interferon-γ or into an M2 phenotype using interleukin-4...
October 7, 2016: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/27714773/histamine-h4-receptor-agonist-induced-relief-from-painful-peripheral-neuropathy-is-mediated-by-inhibition-of-spinal-neuroinflammation-and-oxidative-stress
#16
Maria Domenica Sanna, Laura Lucarini, Mariaconcetta Durante, Carla Ghelardini, Emanuela Masini, Nicoletta Galeotti
BACKGROUND AND PURPOSE: Neuropathic pain is under-treated, with a detrimental effect on quality of life, partly because of low treatment efficacy, but also because pathophysiological mechanisms are not fully elucidated. To clarify the pathobiology of neuropathic pain, we studied the contribution of neuroinflammation and oxidative stress in a model of peripheral neuropathy. We also assessed an innovative treatment for neuropathic pain by investigating the effects of histamine H4 receptor ligands in this model...
October 7, 2016: British Journal of Pharmacology
https://www.readbyqxmd.com/read/27712995/combination-strategy-of-parp-inhibitor-with-antioxidant-prevent-bioenergetic-deficits-and-inflammatory-changes-in-cci-induced-neuropathy
#17
Prashanth Komirishetty, Aparna Areti, Ranadeep Gogoi, Ramakrishna Sistla, Ashutosh Kumar
Neuropathic pain, a debilitating pain condition and the underlying pathogenic mechanisms are complex and interwoven amongst each other and still there is scant information available regarding therapies which promise to treat the condition. Evidence indicate that oxidative/nitrosative stress induced poly (ADP-ribose) polymerase (PARP) overactivation initiate neuroinflammation and bioenergetic crisis culminating into neurodegenerative changes following nerve injury. Hence, we investigated the therapeutic effect of combining an antioxidant, quercetin and a PARP inhibitor, 4-amino 1, 8-naphthalimide (4-ANI) on the hallmark deficits induced by chronic constriction injury (CCI) of sciatic nerve in rats...
October 3, 2016: Neuropharmacology
https://www.readbyqxmd.com/read/27711247/predicting-the-response-to-intravenous-immunoglobulins-in-an-animal-model-of-chronic-neuritis
#18
Gerd Meyer Zu Horste, Steffen Cordes, Johannes Pfaff, Christian Mathys, Anne K Mausberg, Martin Bendszus, Mirko Pham, Hans-Peter Hartung, Bernd C Kieseier
Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is a disabling autoimmune disorder of the peripheral nervous system (PNS). Intravenous immunoglobulins (IVIg) are effective in CIDP, but the treatment response varies greatly between individual patients. Understanding this interindividual variability and predicting the response to IVIg constitute major clinical challenges in CIDP. We previously established intercellular adhesion molecule (ICAM)-1 deficient non-obese diabetic (NOD) mice as a novel animal model of CIDP...
2016: PloS One
https://www.readbyqxmd.com/read/27629714/schwann-cell-o-glcnac-glycosylation-is-required-for-myelin-maintenance-and-axon-integrity
#19
Sungsu Kim, Jason C Maynard, Yo Sasaki, Amy Strickland, Diane L Sherman, Peter J Brophy, Alma L Burlingame, Jeffrey Milbrandt
UNLABELLED: Schwann cells (SCs), ensheathing glia of the peripheral nervous system, support axonal survival and function. Abnormalities in SC metabolism affect their ability to provide this support and maintain axon integrity. To further interrogate this metabolic influence on axon-glial interactions, we generated OGT-SCKO mice with SC-specific deletion of the metabolic/nutrient sensing protein O-GlcNAc transferase that mediates the O-linked addition of N-acetylglucosamine (GlcNAc) moieties to Ser and Thr residues...
September 14, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27625277/early-diagnosis-of-varicella-zoster-virus-sciatic-neuropathy-by-mri-neurography
#20
Eugenia Rota, Nicola Morelli, Elena Belloni, Paola Scagnelli
No abstract text is available yet for this article.
September 2016: Neurology India
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