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https://www.readbyqxmd.com/read/28719619/diagnostic-utility-of-corneal-confocal-microscopy-and-intra-epidermal-nerve-fibre-density-in-diabetic-neuropathy
#1
Uazman Alam, Maria Jeziorska, Ioannis N Petropoulos, Omar Asghar, Hassan Fadavi, Georgios Ponirakis, Andrew Marshall, Mitra Tavakoli, Andrew J M Boulton, Nathan Efron, Rayaz A Malik
OBJECTIVES: Corneal confocal microscopy (CCM) is a rapid, non-invasive, reproducible technique that quantifies small nerve fibres. We have compared the diagnostic capability of CCM against a range of established measures of nerve damage in patients with diabetic neuropathy. METHODS: In this cross sectional study, thirty subjects with Type 1 diabetes without neuropathy (T1DM), thirty one T1DM subjects with neuropathy (DSPN) and twenty seven non-diabetic healthy control subjects underwent detailed assessment of neuropathic symptoms and neurologic deficits, quantitative sensory testing (QST), electrophysiology, skin biopsy and corneal confocal microscopy (CCM)...
2017: PloS One
https://www.readbyqxmd.com/read/28719457/regional-anesthesia-in-diabetic-peripheral-neuropathy
#2
Werner Ten Hoope, Marjolein Looije, Philipp Lirk
PURPOSE OF REVIEW: The aim of this review is to summarize recent relevant literature regarding regional anesthesia in the diabetic neuropathic patient and formulate recommendations for clinical practice. RECENT FINDINGS: Diabetic neuropathic nerves, but not nerves of diabetic patients per se, exhibit complex functional changes. As a result, they seem more sensitive to local anesthetics, and are more difficult to stimulate. When catheters are used postoperatively, diabetes is an independent risk factor for infection...
July 15, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28709447/cryptic-amyloidogenic-elements-in-mutant-nefh-causing-charcot-marie-tooth-2-trigger-aggresome-formation-and-neuronal-death
#3
Arnaud Jacquier, Cécile Delorme, Edwige Belotti, Raoul Juntas-Morales, Guilhem Solé, Odile Dubourg, Marianne Giroux, Claude-Alain Maurage, Valérie Castellani, Adriana Rebelo, Alexander Abrams, Stephan Züchner, Tanya Stojkovic, Laurent Schaeffer, Philippe Latour
Neurofilament heavy chain (NEFH) gene was recently identified to cause autosomal dominant axonal Charcot-Marie-Tooth disease (CMT2cc). However, the clinical spectrum of this condition and the physio-pathological pathway remain to be delineated. We report 12 patients from two French families with axonal dominantly inherited form of CMT caused by two new mutations in the NEFH gene. A remarkable feature was the early involvement of proximal muscles of the lower limbs associated with pyramidal signs in some patients...
July 14, 2017: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/28702450/effects-of-taping-therapy-for-carpal-space-expansion-on-electrophysiological-change-in-patients-with-carpal-tunnel-syndrome
#4
Yeong-Dong Park, Yun-Jin Park, Sang-Seo Park, Hae-Lim Lee, Hyeong-Hun Moon, Myung-Ki Kim
Taping therapy is one of the most conservative treatments for carpal tunnel syndrome (CTS). Preceding research studied on pain control, grip strength, and wrist function but no studies have been reported on electrophysiolgical changes after taping therapy. The aim of this study is to evaluate the effects of taping therapy for carpal space expansion on electrophysiological in 20 female patients aged from 40s to 60s with CTS. Experimental group applied taping therapy for carpal space expansion twice a week for 4 weeks and control group did not...
June 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/28694757/neuroprotective-effect-of-azadirachta-indica-standardized-extract-in-partial-sciatic-nerve-injury-in-rats-evidence-from-anti-inflammatory-antioxidant-and-anti-apoptotic-studies
#5
Amit D Kandhare, Anwesha A Mukherjee, Subhash L Bodhankar
Chronic neuropathic pain is a common and widely recognized pain syndrome for patients and difficult to manage for physicians. Azadirachta indica (AI) possesses analgesic, anti-inflammatory, and antioxidant properties. To evaluate the neuroprotective effect of AI standardized extract in an animal model of peripheral neuropathy induced by partial sciatic nerve ligation (PSNL). PSNL was induced in male Wistar rats (180-200 g) with tight ligation of the nerve. Rats received treatment with either vehicle i.e. distilled water (PSNL control), Pyridoxine (100 mg/kg, p...
2017: EXCLI journal
https://www.readbyqxmd.com/read/28685718/clinical-characteristics-electrophysiology-and-skin-biopsy-of-38-peripheral-neuropathy-cases-with-small-fiber-involvement-of-various-etiologies
#6
Bo Sun, Li-Zhi Liu, Yi-Fan Li, Zhao-Hui Chen, Li Ling, Fei Yang, Fang Cui, Xu-Sheng Huang
BACKGROUND: In small fiber neuropathy (SFN), thinly myelinated Aδ and unmyelinated C fibers are primarily affected, resulting in sensory and/or autonomic symptoms. Various etiologies have been shown to be associated with SFN. This study was aimed to analyze a variety of features in peripheral neuropathy (PN) with small fiber involvement, and to compare disease severity among patients with idiopathic PN, PN associated with impaired glucose tolerance (IGT), and metabolic syndrome (MS) PN...
July 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28684590/heat-acclimation-has-a-protective-effect-on-the-central-but-not-peripheral-nervous-system
#7
Sebastien Racinais, Mathew G Wilson, Nadia Gaoua, Julien D Périard
This study aimed to clarify the pathway mediating hyperthermia-induced alterations in neural drive transmission, and determine if heat acclimation protects voluntary muscle activation and cognitive function in hyperthermic humans. Electrically evoked potentials (H-reflex and M-wave), executive function (special planning and working memory) and maximal voluntary isometric contractions (120 s) were assessed in fourteen participants in control condition (CON, 24ºC, 40% RH) and hyperthermic states (HYP, 44-50ºC, 50% RH), on consecutive days in a counterbalanced order...
July 6, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28682956/diphenyleneiodonium-mitigates-bupivacaine-induced-sciatic-nerve-damage-in-a-diabetic-neuropathy-rat-model-by-attenuating-oxidative-stress
#8
Zhong-Hua Ji, Zhong-Jie Liu, Zi-Ting Liu, Wei Zhao, Brian A Williams, Hong-Fei Zhang, Le Li, Shi-Yuan Xu
BACKGROUND: Increased oxidative stress has been linked to local anesthetic-induced nerve injury in a diabetic neuropathy (DN) rat model. The current study explores the effects of diphenyleneiodonium (DPI) chloride, an NADPH oxidase (NOX) inhibitor, on bupivacaine-induced sciatic nerve injury in DN rats. METHODS: A rat DN model was established through high-fat diet feeding and streptozotocin injection. The model was confirmed via testing (i) blood glucose, (ii) hindpaw allodynia responses to von Frey (VF) monofilaments, (iii) paw withdrawal thermal latency (PWTL), and (iv) nerve conduction velocity (NCV)...
July 4, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28652546/clinical-application-of-ghrelin-for-diabetic-peripheral-neuropathy
#9
Hiroaki Ueno, Tomomi Shiiya, Kazuhiro Nagamine, Wakaba Tsuchimochi, Hideyuki Sakoda, Kazutaka Shiomi, Kenji Kangawa, Masamitsu Nakazato
Diabetic peripheral neuropathy (DPN) is the most common complication of diabetes, and its progression significantly worsens the patient's quality of life. Although several drugs are available for DPN, all of these provide only symptomatic relief. We investigated the therapeutic effects of ghrelin for DPN, based on its various physiological functions. Seven patients with type 2 diabetes with typical clinical signs and symptoms of DPN were hospitalized. Synthetic human ghrelin (1.0 μg/kg) was administered intravenously for 14 days...
2017: Endocrine Journal
https://www.readbyqxmd.com/read/28645314/neuromuscular-function-during-knee-extension-exercise-after-cold-water-immersion
#10
Hitoshi Wakabayashi, Titis Wijayanto, Yutaka Tochihara
BACKGROUND: Human adaptability to cold environment has been focused on in the physiological anthropology and related research area. Concerning the human acclimatization process in the natural climate, it is necessary to conduct a research assessing comprehensive effect of cold environment and physical activities in cold. This study investigated the effect of cold water immersion on the exercise performance and neuromuscular function during maximal and submaximal isometric knee extension...
June 23, 2017: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/28632137/electrospun-silk-polyaniline-conduits-for-functional-nerve-regeneration-in-rat-sciatic-nerve-injury-model
#11
Suradip Das, Manav Sharma, Dhiren Saharia, Kushal Sarma, Elizabeth Muir, Utpal Bora
The present study describes the fabrication of polyaniline-silk fibroin nanocomposite based nerve conduits and its subsequent implantation in a rat sciatic nerve injury model for peripheral nerve regeneration. This is the first in vivo study of polyaniline based nerve conduit describing the safety and efficacy of the conduits in treating peripheral nerve injuries. The nanocomposite was synthesised by electrospinning a mixture of silk fibroin protein and polyaniline wherein the silk nanofibers were observed to be uniformly coated with polyaniline nanoparticles...
June 20, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28620719/large-coverage-mr-neurography-in-cidp-diagnostic-accuracy-and-electrophysiological-correlation
#12
Moritz Kronlage, Philipp Bäumer, Kalliopi Pitarokoili, Daniel Schwarz, Véronique Schwehr, Tim Godel, Sabine Heiland, Ralf Gold, Martin Bendszus, Min-Suk Yoon
The objective of this study was to evaluate large coverage magnetic resonance neurography (MRN) in chronic inflammatory demyelinating polyneuropathy (CIDP). In this prospective study, 18 patients with CIDP and 18 healthy controls were examined by a standardized MRN protocol at 3 T. Lumbosacral plexus was imaged by a T2-weighted 3D sequence and peripheral nerves of the upper and lower extremity by axial T2-weighted turbo spin-echo sequences. Lesions were characterized by nerve cross-sectional area (CSA) and T2-weighted signal (nT2)...
July 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28615897/dorsal-sural-sensory-nerve-action-potential-a-study-for-reference-values
#13
Sweta Chetan Chaudhari, Khushnuma Anil Mansukhani, Alika Sharma, Lajita Balakrishnan, Aarthika Sreenivasan
BACKGROUND: Dorsal sural sensory nerve action potential (SNAP) could help diagnose early or subclinical peripheral neuropathy. OBJECTIVES: To establish reference data for dorsal sural SNAP amplitude, latency, and velocity in healthy participants. MATERIALS AND METHODS: A prospective study was conducted in 45 nerves from healthy participants between 18 and 90 years and stratified into three age groups (a = 18-40 years, b = 41-60 years, and c>60 years)...
April 2017: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/28606158/open-surgical-implantation-of-a-viable-cryopreserved-placental-membrane-after-decompression-and-neurolysis-of-common-peroneal-nerve-a-case-series
#14
E Rodriguez-Collazo, Y Tamire
BACKGROUND: The purpose of this study is to report on the rehabilitative outcomes associated with common peroneal nerve (CPN) decompression and neurolysis revision when performed with open surgical implantation of a viable cryopreserved placental membrane (vCPM). METHODS: Seven patients who underwent secondary CPN decompression and neurolysis with open surgical implantation of a viable cryopreserved placental membrane (vCPM) after previously failed surgery without vCPM utilization were identified through a retrospective medical record review and outcomes were analyzed...
June 12, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28595477/positive-effects-of-plantar-vibration-training-for-the-treatment-of-diabetic-peripheral-neuropathy-a-pilot-study
#15
Katerina Stambolieva, Dorina Petrova, Mariya Irikeva
PURPOSE: To evaluate the effectiveness of 8-week low-frequency plantar vibration training on patients with sensorimotor diabetic peripheral neuropathy (DPN). PARTICIPANTS: Twelve patients took part in the investigation. RESULTS: An increase of the nerve conductive velocity of soral and peroneal nerves of feet, increased postural stability, and disappearance of the pain and tingling were observed. CONCLUSION: The obtained results provide evidence for beneficial effects of 8-week plantar vibration training in patients with DPN...
June 9, 2017: Somatosensory & Motor Research
https://www.readbyqxmd.com/read/28593000/ultrasound-and-emg-ncv-study-electromyography-and-nerve-conduction-velocity-correlation-in-diagnosis-of-nerve-pathologies
#16
REVIEW
Shilpa Domkundwar, Gayatri Autkar, S V Khadilkar, Mayur Virarkar
PURPOSE: Nerve disorders are commonly encountered in clinical practice. Ultrasonography (USG) is a useful modality in the evaluation of most of the peripheral and superficial pathologies amenable to penetration by ultrasound. The primary objective is to study the USG findings of various peripheral nerve pathologies and to correlate them with electrophysiological (EMG-NCV) findings. METHOD: 42 patients referred with suspicion of peripheral nervous system affection were evaluated with USG along with EMG-NCV...
June 2017: Journal of Ultrasound
https://www.readbyqxmd.com/read/28586773/comparison-of-the-clinical-effectiveness-of-ultrasound-guided-corticosteroid-injection-with-and-without-needle-release-of-the-transverse-carpal-ligament-in-carpal-tunnel-syndrome
#17
Xuan-Yan Guo, Mao-Xiang Xiong, Yu Zhao, Fan-Ding He, Xue-Qing Cheng, Yan-Yan Wu, Kai Chen, Man Lu
BACKGROUND: To compare the clinical effectiveness of ultrasound-guided corticosteroid injection with and without needle release of the transverse carpal ligament (TCL) in carpal tunnel syndrome (CTS). METHODS: Between May 2014 and June 2016, 52 patients (56 wrists) with CTS were included in this study. Among these patients, 28 wrists were treated with ultrasound-guided corticosteroid injection plus needle release of the TCL (group A) and 28 wrists were treated with a single ultrasound-guided corticosteroids injection (group B)...
June 7, 2017: European Neurology
https://www.readbyqxmd.com/read/28582723/neutrophil-to-lymphocyte-ratio-is-associated-with-diabetic-peripheral-neuropathy-in-type-2-diabetes-patients
#18
Siying Liu, Hangping Zheng, Xiaoming Zhu, Fei Mao, Shuo Zhang, Hongli Shi, Yiming Li, Bin Lu
OBJECTIVE: Diabetic peripheral neuropathy (DPN) had been demonstrated as a chronic inflammation state and one of the most common complications of type 2 diabetes mellitus (T2DM). Neutrophil-to-lymphocyte ratio (NLR) is a novel marker to reflect many kinds of chronic inflammation disease including diabetes. We aim to evaluate the association between NLR and DPN and to determine whether NLR could be a new indicator of DPN in type 2 diabetes patients. METHODS: We retrospect the consecutive medical files of T2DM patients...
May 12, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28581556/a-co-culture-microtunnel-technique-demonstrating-a-significant-contribution-of-unmyelinated-schwann-cells-to-the-acceleration-of-axonal-conduction-in-schwann-cell-regulated-peripheral-nerve-development
#19
Koji Sakai, Kenta Shimba, Kiyoshi Kotani, Yasuhiko Jimbo
Schwann cells (SCs) contribute to the regulation of axonal conduction in a myelin-dependent and -independent manner. However, due to the lack of investigative techniques that are able to record axonal conduction under conditions that control the proliferation of specific SC types, little is known about the extent to which myelinated SCs (mSCs) and unmyelinated SCs (umSCs) modulate axonal conduction. In this study, a microtunnel-electrode approach was applied to a neuron/SC co-culture technique. Rat dorsal root ganglion neurons and SCs were co-cultured in a microtunnel-electrode device, which enabled recording of the conduction delay in multiple axons passing through microtunnels...
June 5, 2017: Integrative Biology: Quantitative Biosciences From Nano to Macro
https://www.readbyqxmd.com/read/28578166/effect-of-cervical-sympathetic-ganglionectomy-on-facial-nerve-reconstruction-using-polyglycolic-acid-collagen-tubes
#20
Gentarou Tsujimoto, Katsuhisa Sunada, Tatsuo Nakamura
A polyglycolic acid-collagen (PGA-c) tube was used as an artificial nerve guide during facial nerve reconstruction performed in a canine model of stellate ganglion block (SGB). The model was generated using a cervical sympathetic ganglionectomy. We evaluated the effects of blood flow on nerve regeneration. First, we resected the left cervical sympathetic ganglion in beagles (n = 6). We assessed buccal mucosal blood flow and nasal skin temperatures once per week for 12 weeks and Horner's sign 2, 4, and 6 months after resection...
May 31, 2017: Brain Research
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