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peripheral nerve treatment

Sarah Elizabeth Skerratt, Mark D Andrews, Sharan K Bagal, James Bilsland, David Brown, Peter J Bungay, Susan Cole, Karl R Gibson, Russell Jones, Inaki Morao, Angus Nedderman, Kiyoyuki Omoto, Colin Robinson, Thomas Ryckmans, Kimberly Skinner, Paul Anthony Stupple, Gareth Waldron
The neurotrophin family of growth factors, comprised of nerve growth factor (NGF), brain derived neurotrophic factor (BDNF), neurotrophin 3 (NT3) and neurotrophin 4 (NT4), is implicated in the physiology of chronic pain. Given the clinical efficacy of anti-NGF monoclonal antibody (mAb) therapies, there is significant interest in the development of small molecule modulators of neurotrophin activity. Neurotrophins signal through the tropomyosin related kinase (Trk) family of tyrosine kinase receptors, hence Trk kinase inhibition represents a potentially "druggable" point of intervention...
October 21, 2016: Journal of Medicinal Chemistry
Jewel L Podratz, Han Lee, Patrizia Knorr, Stephanie Koehler, Steven Forsythe, Kelsey Lambrecht, Suzette Arias, Kiley Schmidt, Gabrielle Steinhoff, Georgiy Yudintsev, Amy Yang, Eugenia Trushina, Anthony Windebank
Cisplatin is an effective chemotherapy drug that induces peripheral neuropathy in cancer patients. In rodent dorsal root ganglion neurons, cisplatin binds nuclear and mitochondrial DNA (mtDNA) inducing DNA damage and apoptosis. Platinum-mtDNA adducts inhibit mtDNA replication and transcription leading to mitochondrial degradation. Cisplatin also induces climbing deficiencies associated with neuronal apoptosis in adult Drosophila melanogaster. Here we used Drosophila larvae that express green fluorescent protein in the mitochondria of motor neurons to observe the effects of cisplatin on mitochondrial dynamics and function...
October 17, 2016: Neurobiology of Disease
Seok-Youl Choi, Jong Woong Park, Dong Hwee Kim
Ultrasonographic study is useful for decision making of treatment for focal neuropathy with unusual electrodiagnostic findings. We present a patient with severe acute radial neuropathy with sensory sparing around the distal arm secondary to twisting of the radial nerve following blunt trauma. A 24-year-old man with a 2-week history of left wrist drop and severe pain around the left elbow presented after hitting the left distal arm on the doorknob. The left wrist and finger extensions were grade 0, but elbow extension could not be tested because of severe pain during this action...
November 2016: American Journal of Physical Medicine & Rehabilitation
Mingyong Gao, Paul Lu, Dan Lynam, Bridget Bednark, W Marie Campana, Jeff Sakamoto, Mark Tuszynski
OBJECTIVE: We combined implantation of multi-channel templated agarose scaffolds with growth factor gene delivery to examine whether this combinatorial treatment can enhance peripheral axonal regeneration through long sciatic nerve gaps. APPROACH: 15 mm long scaffolds were templated into highly organized, strictly linear channels, mimicking the linear organization of natural nerves into fascicles of related function. Scaffolds were filled with syngeneic bone marrow stromal cells (MSCs) secreting the growth factor brain derived neurotrophic factor (BDNF), and lentiviral vectors expressing BDNF were injected into the sciatic nerve segment distal to the scaffold implantation site...
October 20, 2016: Journal of Neural Engineering
Richard F Lewis
Damage to the peripheral vestibular system can result in debilitating postural, perceptual, and visual symptoms. A new potential treatment for this clinical problem is to replace some aspects of peripheral vestibular function with an implant that senses head motion and provides this information to the brain by stimulating branches of the vestibular nerve. In this review I consider animal studies performed at our institution over the past fifteen years, which have helped elucidate how the brain processes information provided by a vestibular (semicircular canal) implant and how this information could be used to improve the problems experienced by patients with peripheral vestibular damage...
October 19, 2016: Journal of Neurophysiology
K L Ostrow, A L Bergner, J Blakeley, D G Evans, R Ferner, J M Friedman, G J Harris, J T Jordan, B Korf, S Langmead, G Leschziner, V Mautner, V L Merker, L Papi, S R Plotkin, J M Slopis, M J Smith, A Stemmer-Rachamimov, K Yohay, A J Belzberg
Schwannomatosis is a tumor suppressor syndrome that causes multiple tumors along peripheral nerves. Formal diagnostic criteria were first published in 2005. Variability in clinical presentation and a relative lack of awareness of the syndrome have contributed to difficulty recognizing affected individuals and accurately describing the natural history of the disorder. Many critical questions such as the mutations underlying schwannomatosis, genotype-phenotype correlations, inheritance patterns, pathologic diagnosis of schwannomatosis-associated schwannomas, tumor burden in schwannomatosis, the incidence of malignancy, and the effectiveness of current, or new treatments remain unanswered...
October 19, 2016: American Journal of Medical Genetics. Part A
Zühtü Özbek, Hasan Emre Aydin, Atacan Emre Koçman, Emre Özkara, Erdem Söztutar, Ezgi Bektur, Murat Vural, Aydan Köse, Ali Arslantaş, Cengiz Bayçu
AIM: In this study, we investigated the effects of genistein in a rat model of sciatic nerve crush injury and complete sciatic nerve transection. The effects of genistein were compared with those of gabapentin, which is widely used in clinical practice for peripheral nerve injury. MATERIAL AND METHODS: Forty-eight rats were randomly divided into six groups (n = 8 for all groups): group 1 (sham); group 2, sciatic nerve crush injury (control); group 3, sciatic nerve crush injury + genistein 20 mg/kg; group 4, sciatic nerve crush injury + gabapentin 90 mg/kg; group 5, sciatic nerve transection + genistein 20 mg/kg; group 6, sciatic nerve transection + gabapentin 90 mg/kg...
September 21, 2016: Turkish Neurosurgery
Lovish Marwaha, Yashika Bansal, Raghunath Singh, Priyanka Saroj, Rupinder Kaur Sodhi, Anurag Kuhad
TRP channels have been discovered as a specialized group of somatosensory neurons involved in the detection of noxious stimuli. Desensitization of TRPV1 located on dorsal root and trigeminal ganglia exhibits analgesic effect and makes it potential therapeutic target for treatment of neuropathic pain. With this background, the present study was aimed to investigate the protective effect of niflumic acid, a TRPV1 modulator, on stavudine (STV)-induced neuropathic pain in rats. Stavudine (50 mg/kg) was administered intravenously via tail vein in rats to induce neuropathic pain...
October 18, 2016: Inflammopharmacology
So Young Joo, Yoon Soo Cho, Sung-Rae Cho, Dohern Kym, Cheong Hoon Seo
PURPOSE: Pain Scrambler therapy is a patient-specific electrocutaneous nerve stimulation device. Burn pruritus is a common form of chronic and disabling neuropathic pain that is often difficult to treat effectively. Pruritus is mediated by histamines, which are effector molecules stored in mast cells and released locally during injury or inflammation. Burn pruritus may be accompanied by peripheral neuropathic pain, which may result from injury to sensory nerves that hampers conductance of neuronal messages along the large A and small C afferent fibers to the spinal cord...
October 15, 2016: Burns: Journal of the International Society for Burn Injuries
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...
October 18, 2016: Somatosensory & Motor Research
Mohan Raizada
Hypertension (HTN) is the most prevalent modifiable risk for cardiovascular disease (CVD) and disorders directly influencing CVD (i.e. obesity, diabetes, chronic kidney disease, obstructive sleep apnea, etc.). About one billion people worldwide have HTN, with American adults having 90% lifetime risk of developing HTN. Despite aggressive campaign for lifestyle changes and advances in drug therapy, HTN remains an immense health, emotional, and economic challenge. This is due, in part, to the fact that ∼50% of HTN patients' blood pressure remains uncontrolled and ∼20% of HTN patients are resistant to or require > antihypertensive drugs...
September 2016: Journal of Hypertension
Y H Kou, B G Jiang
Peripheral nerve defects are still a major challenge in clinical practice, and the most commonly used method of treatment for peripheral nerve defects is nerve transplantation, which has certain limitations and shortcomings, so new repair methods and techniques are needed. The peripheral nerve is elongated in limb lengthening surgery without injury, from which we got inspirations and proposed a new method to repair peripheral nerve defects: peripheral nerve elongation. The peripheral nerve could beelongated by a certain percent, but the physiological change and the maximum elongation range were still unknown...
October 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
Luca Padua, Daniele Coraci, Carmen Erra, Costanza Pazzaglia, Ilaria Paolasso, Claudia Loreti, Pietro Caliandro, Lisa D Hobson-Webb
Carpal tunnel syndrome is the most common peripheral nerve entrapment syndrome worldwide. The clinical symptoms and physical examination findings in patients with this syndrome are recognised widely and various treatments exist, including non-surgical and surgical options. Despite these advantages, there is a paucity of evidence about the best approaches for assessment of carpal tunnel syndrome and to guide treatment decisions. More objective methods for assessment, including electrodiagnostic testing and nerve imaging, provide additional information about the extent of axonal involvement and structural change, but their exact benefit to patients is unknown...
November 2016: Lancet Neurology
Yi-Ming Ren, Xi-Shan Wang, Zhi-Jian Wei, Bao-You Fan, Wei Lin, Xian-Hu Zhou, Shi-Qing Feng
BACKGROUND: Carpal tunnel syndrome (CTS) is a common peripheral nerve entrapment disease. Either surgical or conservative intervention for CTS patients is needed to choose. We conducted this systematic review and meta-analysis to compare the clinical efficacy, safety, and cost of surgical versus nonsurgical intervention. METHODS: The eligible studies were acquired from PubMed, Medline, Embase, Web of Science, Google, and Cochrane Library. The data were extracted by 2 of the coauthors independently and were analyzed by RevMan5...
October 2016: Medicine (Baltimore)
Yu Kobayashi, Jun Tohyama, Tomoyuki Akiyama, Shinichi Magara, Hideshi Kawashima, Noriyuki Akasaka, Mitsuko Nakashima, Hirotomo Saitsu, Naomichi Matsumoto
Cerebral folate deficiency due to folate receptor 1 gene (FOLR1) mutations is an autosomal recessive disorder resulting from a brain-specific folate transport defect. It is characterized by late infantile onset, severe psychomotor regression, epilepsy, and leukodystrophy. We describe a consanguineous girl exhibiting severe developmental regression, intractable epilepsy, polyneuropathy, and profound hypomyelination with cortical involvement. Magnetic resonance imaging showed cortical disturbances in addition to profound hypomyelination and cerebellar atrophy...
October 12, 2016: Brain & Development
Georgios Tsivgoulis, Andrei V Alexandrov
PURPOSE OF REVIEW: Low cost, avoidance of irradiation, and high temporal resolution are inherent advantages of ultrasound imaging that translate into multiple clinical uses in many domains of neurology. This article presents clinical uses of ultrasound examination in cerebrovascular, neurodegenerative, and peripheral nervous system diseases. RECENT FINDINGS: Modern treatment and prevention of ischemic stroke rely on prompt diagnosis. Ultrasonography has found a place as a noninvasive screening test and bedside technique that provides estimates of the degree of stenosis as well as hemodynamic and structural information about intracranial and extracranial vessels in real time...
October 2016: Continuum: Lifelong Learning in Neurology
J Laulan
Neurogenic thoracic outlet syndrome (TOS) is one of the most controversial pain syndromes of the upper limbs. The controversies revolve around both the diagnosis and treatment of the non-specific or subjective subtypes. Their diagnosis rests on a combination of history, suggestive symptoms and clinical examination. Proximal pain is primarily muscular in origin, while distal symptoms may be the result of intermittent nerve compression and/or myofascial pain syndrome. Stringent clinical criteria are required to confirm the diagnosis of subjective TOS...
June 2016: Hand Surgery and Rehabilitation
O Kalita, K Cwiertka, D Vrána, M Vaverka, L Tučková, M Megová
BACKGROUND: Malignant peripheral nerve sheath tumor schwannoma (MPNST), also known as malignant schwannoma, is a very rare tumor accounting for only 2% of all sarcomas. The prognosis is relatively poor, with a 5-year survival rate of 46-69%. The treatment of MPNST has not been standardized yet. Mainstay treatment is radical resection. Oncological adjuvant or neoadjuvant treatment has equivocal indications with unclear effects. CASE: The case report presents a 55-year-old patient who showed resistance in the medial-ventral area of the left lower limb...
2016: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
Xiaoning Wang, Pengcheng He, Caili Guo, Chunhong Sun, Mei Zhang
INTRODUCTION: To investigate the safety and efficacy of the combination regimen vincristine, cyclophosphamide, melphalan or mitoxantrone and prednisone (VCMP) plus thalidomide as first-line induction therapy for newly diagnosed multiple myeloma (MM). METHODS: Three hundred and ninety-six symptomatic, newly diagnosed MM patients were treated with VCMP plus thalidomide in our hospital for the past 11 years, and clinical data of these patients were retrospectively analyzed...
October 14, 2016: Asia-Pacific Journal of Clinical Oncology
Ognjen Visnjevac, Shrif Costandi, Bimal A Patel, Girgis Azer, Priya Agarwal, Robert Bolash, Nagy A Mekhail
BACKGROUND: Complex regional pain syndrome (CRPS) is a painful, debilitating affliction that is often difficult to treat. It has become common international practice to use spinal cord stimulation (SCS) for the treatment of CRPS as other therapies fail to provide adequate relief, quality of life, or improvement in function. This comprehensive outcome-specific systematic review of the use of SCS for CRPS was performed to elucidate the available evidence with focus on clinically relevant patient-specific outcomes...
October 14, 2016: Pain Practice: the Official Journal of World Institute of Pain
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