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Sensory neuropathy

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https://www.readbyqxmd.com/read/27901334/differential-efficacy-of-methylcobalamin-and-alpha-lipoic-acid-treatment-on-negative-and-positive-symptoms-of-type-2-diabetic-peripheral-neuropathy
#1
Yajuan Han, Min Wang, Jie Shen, Zhen Zhang, Min Zhao, Jing Huang, Youming Chen, Zhi Chen, Yulan Hu, Yubing Wang
BACKGROUND: Diabetic hyperglycemia damages peripheral nerves by triggering ischemia, oxidative stress, and inflammation. Alpha-lipoic acid (ALA) and methylcobalamin (MC) are known to improve signs of diabetic peripheral neuropathy (DPN), possibly by enhancing neural and vascular endothelial cell metabolism and antioxidant capacity. We evaluated differences in efficacy following short-term MC or ALA treatment on DPN symptoms to guide clinical drug selection. METHODS: Forty DPN patients were randomly divided into MC and ALA treatment groups (n=20/20) and assessed by the Toronto Clinical Neuropathy Scoring System (TCSS), total symptom score (TSS), visual analog scale (VAS) of positive symptoms, and easy sensory test (EST) for negative symptoms before and after 2 weeks of treatment...
November 30, 2016: Minerva Endocrinologica
https://www.readbyqxmd.com/read/27898216/characterization-of-prostacyclin-associated-leg-pain-in-patients-with-pulmonary-arterial-hypertension
#2
Gabriel L Pagani-Estévez, Keith M Swetz, Michael D McGoon, Robert P Frantz, Susan K Tointon, Ann M Karnyski, Louise A Durst, James C Watson
RATIONALE: Prostacyclin-associated leg pain is a potentially debilitating adverse effect of prostacyclin therapy for patients with pulmonary arterial hypertension (PAH). However, to our knowledge, this entity has not been systematically studied. OBJECTIVE: To characterize the clinical features and metabolic risk factors for prostacyclinassociated leg pain. METHODS: At one academic medical center we assembled and analyzed a case series of patients with PAH and prostacyclin-associated leg pain...
November 29, 2016: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/27896316/compound-heterozygous-intermediate-mjd-alleles-cause-cerebellar-ataxia-with-sensory-neuropathy
#3
Yuji Takahashi, Masahiro Kanai, Tomoya Taminato, Shoko Watanabe, Chihiro Matsumoto, Toshiyuki Araki, Tomoko Okamoto, Masafumi Ogawa, Miho Murata
Spinocerebellar degeneration (SCD) is a group of disorders characterized by progressive ataxia caused by dysfunction and atrophy of the cerebellum or its projections. Approximately one-third of SCD cases are familial SCD, the majority of which are attributed to CAG triplet repeat expansions including spinocerebellar ataxia (SCA)1, SCA2, Machado-Joseph disease (MJD)/SCA3, SCA6, SCA8, SCA12, SCA17, and dentate-rubro-pallido-luysian atrophy (DRPLA). The triplet repeat number of the alleles representing complete penetrance varies among diseases...
February 2016: Neurology. Genetics
https://www.readbyqxmd.com/read/27895823/effect-of-pioglitazone-on-nerve-conduction-velocity-of-the-median-nerve-in-the-carpal-tunnel-in-type-2-diabetes-patients
#4
Sudip Chatterjee, Debmalya Sanyal, Sourav Das Choudhury, Mili Bandyopadhyay, Suraj Chakraborty, Arabinda Mukherjee
AIM: To evaluate the impact of pioglitazone pharmacotherapy in median nerve electrophysiology in the carpal tunnel among type 2 diabetes patients. METHODS: The study was executed in patients with type 2 diabetes, treated with oral drugs, categorized under pioglitazone or non-pioglitazone group (14 in each group), and who received electrophysiological evaluation by nerve conduction velocity at baseline and 3 mo. RESULTS: At 3 mo, pioglitazone-category had inferior amplitude in sensory median nerve [8...
November 15, 2016: World Journal of Diabetes
https://www.readbyqxmd.com/read/27894788/neurotoxic-mechanisms-of-paclitaxel-are-local-to-the-distal-axon-and-independent-of-transport-defects
#5
Erica L Gornstein, Thomas L Schwarz
Chemotherapy-induced peripheral neuropathy (CIPN) is a dose-limiting side effect of paclitaxel and other chemotherapeutic agents. Paclitaxel binds and stabilizes microtubules, but the cellular mechanisms that underlie paclitaxel's neurotoxic effects are not well understood. We therefore used primary cultures of adult murine dorsal root ganglion neurons, the cell type affected in patients, to examine leading hypotheses to explain paclitaxel neurotoxicity. We address the role of microtubule hyperstabilization and its downstream effects...
November 25, 2016: Experimental Neurology
https://www.readbyqxmd.com/read/27894750/risk-factors-for-autonomic-and-somatic-nerve-dysfunction-in-different-stages-of-glucose-tolerance
#6
Rumyana Dimova, Tsvetalina Tankova, Velina Guergueltcheva, Ivailo Tournev, Nevena Chakarova, Greta Grozeva, Lilia Dakovska
AIM: The present study evaluates autonomic and somatic nerve function in different stages of glucose tolerance and its correlation with different cardio-metabolic parameters. MATERIAL AND METHODS: Four hundred seventy-eight subjects, mean age 49.3±13.7years and mean BMI 31.0±6.2kg/m2, divided according to glucose tolerance: 130 with normal glucose tolerance (NGT), 227 with prediabetes (125 with impaired fasting glucose (IFG) and 102 with isolated impaired glucose tolerance (iIGT)), and 121 with newly-diagnosed T2D (NDT2D), were enrolled...
November 6, 2016: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/27894152/surgical-decompression-in-the-treatment-of-diabetic-peripheral-neuropathy-a-systematic-review-and-meta-analysis
#7
Yiji Tu, William Charles Lineaweaver, Zenggan Chen, Junda Hu, Fred Mullins, Feng Zhang
Background Over the last decade, surgical decompression procedures have been commonly used in the treatment of diabetic peripheral neuropathy. However, the effectiveness of them remains to be proved. Methods A comprehensive literature search of databases including PubMed-Medline, Ovid-EMBASE, and Cochrane Library was performed to collect the related literatures. The Medical Subject Headings used were "diabetic neuropathy," "surgical decompression," and "outcomes." The methodological index for nonrandomized studies was adopted for assessing the studies included in this review...
November 28, 2016: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/27891417/a-commonly-missed-well-known-entity-acute-intermittent-porphyria-a-case-report
#8
Smilu Mohanlal, Radha Gulati Ghildiyal, Alpana Kondekar, Poonam Wade, Richa Sinha
Acute Intermittent Porphyria (AIP) usually presents with abdominal pain, peripheral neuropathy and psychiatric manifestations. Incidence of AIP being 5 in 1,00,000. We present a case of an 11-year-old male child with multiple cranial nerve involvement, quadriparesis, focal convulsions, hypertension, hyponatremia with history of recurrent abdominal pain. His complete haemogram, ultrasonography (USG) abdomen, renal function tests were normal, he was also evaluated for tuberculosis which was negative. On further evaluation Electroencephalography (EEG) was suggestive of a generalised seizure disorder, MRI Brain suggestive of Posterior Reversible Encephalopathy Syndrome (PRES), Electromyography revealed a sensory motor axonal polyneuropathy and urine UV fluoresence test was positive for porphobilinogen which clinched the diagnosis of AIP...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27886890/orbital-disease-in-neuro-ophthalmology
#9
REVIEW
Jessica R Chang, Anna M Gruener, Timothy J McCulley
Many abnormalities of the orbit present with neuro-ophthalmic findings, such as impaired ocular motility or alignment, and sensory changes, including optic neuropathy. Comprehensive coverage of all orbital diseases is beyond the scope of this article. This review focuses on diagnosis and management of the most common and the most vision- or life-threatening orbital conditions as well as more recently discovered entities and points of active controversy. These conditions include orbital trauma, vascular disease, inflammatory and infectious diseases, and neoplasms...
February 2017: Neurologic Clinics
https://www.readbyqxmd.com/read/27882251/bilateral-numb-chin-syndrome-as-the-initial-presentation-of-burkitt-s-lymphoma-leukemia-a-report-of-two-cases-and-review-of-the-literature
#10
Hussein Algahtani, Bader Shirah, Wafaa Bassuni, Reem Adas
Numb chin syndrome, also known as mental nerve neuropathy, is a rare sensory neuropathy characterized by paresthesia and hypoesthesia in the area supplied by the mental nerve and its branches. This syndrome may be the first symptom of underlying malignancy or the first sign of recurrence and metastasis in patients with preexisting cancer. In this article, we present two cases with bilateral numb chin syndrome as the first manifestation of Burkitt's lymphoma/leukemia and review the relevant literature. Numb chin syndrome should be considered as a warning sign and raise the suspicion for an underlying malignancy...
2016: Case Reports in Hematology
https://www.readbyqxmd.com/read/27881717/localization-of-1-deoxysphingolipids-to-mitochondria-induces-mitochondrial-dysfunction
#11
Irina Alecu, Andrea Tedeschi, Natascha Behler, Klaus Wunderling, Christian Lamberz, Mario A R Lauterbach, Anne Gaebler, Daniela Ernst, Paul P Van Veldhoven, Ashraf Al-Amoudi, Eicke Latz, Alaa Othman, Lars Kuerschner, Thorsten Hornemann, Frank Bradke, Christoph Thiele, Anke Penno
1-Deoxysphingolipids (deoxySLs) are atypical sphingolipids that are elevated in the plasma of patients with type 2 diabetes and hereditary sensory and autonomic neuropathy type 1 (HSAN1). Clinically, diabetic neuropathy and HSAN1 are very similar, suggesting the involvement of deoxySLs in the pathology of both diseases. However, very little is known about the biology of these lipids and the underlying pathomechanism. We synthesized an alkyne analogue of 1-deoxysphinganine (doxSA), the metabolic precursor of all deoxySLs, to trace the metabolism and localization of deoxySLs...
November 23, 2016: Journal of Lipid Research
https://www.readbyqxmd.com/read/27875632/variable-phenotypic-expression-and-onset-in-myh14-distal-hmn-phenotype-in-a-large-multigenerational-north-american-family
#12
Stanley Iyadurai, W David Arnold, John T Kissel, Corey Ruhno, Vicki L McGovern, Pamela J Snyder, Thomas W Prior, Jennifer Roggenbuck, Arthur H Burghes, Stephen J Kolb
INTRODUCTION: Distal hereditary motor neuropathy (dHMN) causes distal-predominant weakness without prominent sensory loss. Myosin heavy chain disorders most commonly result in distal myopathy and cardiomyopathy with or without hearing loss, but a complex phenotype with dHMN, myopathy, hoarseness, and hearing loss was reported in a Korean family with a c.2822G>T mutation in MYH14. OBJECTIVE: To report phenotypic features in a North American family with the c.2822G>T in MYH14...
November 22, 2016: Muscle & Nerve
https://www.readbyqxmd.com/read/27875513/post-traumatic-trigeminal-neuropathy-caused-by-an-orbital-stab-wound
#13
Shinpei Matsuda, Hitoshi Yoshimura, Tadanori Hamano, Kazuo Sano
Sensory and motor neuropathy of the trigeminal nerve due to trauma is quite rare. Furthermore, there have been no detailed reports on occlusal abnormalities and trismus associated with post-traumatic trigeminal motor neuropathy. Here, the authors report a case of trigeminal motor neuropathy and trigeminal sensory neuropathy in all 3 divisions caused by an orbital stab wound. During kendo practice, a 61-year-old man was injured in his right medial canthus with the splinter of a broken bamboo sword. Imaging examinations did not show a brain injury or orbital bone fracture...
November 21, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27872763/effects-of-microtubule-stabilization-by-epothilone-b-depend-on-the-type-and-age-of-neurons
#14
Eun-Hae Jang, Aeri Sim, Sun-Kyoung Im, Eun-Mi Hur
Several studies have demonstrated the therapeutic potential of applying microtubule- (MT-) stabilizing agents (MSAs) that cross the blood-brain barrier to promote axon regeneration and prevent axonal dystrophy in rodent models of spinal cord injury and neurodegenerative diseases. Paradoxically, administration of MSAs, which have been widely prescribed to treat malignancies, is well known to cause debilitating peripheral neuropathy and axon degeneration. Despite the growing interest of applying MSAs to treat the injured or degenerating central nervous system (CNS), consequences of MSA exposure to neurons in the central and peripheral nervous system (PNS) have not been thoroughly investigated...
2016: Neural Plasticity
https://www.readbyqxmd.com/read/27872270/hiv-glycoprotein-gp120-impairs-fast-axonal-transport-by-activating-tak1-signaling-pathways
#15
Sarah H Berth, Nichole Mesnard-Hoaglin, Bin Wang, Hajwa Kim, Yuyu Song, Maria Sapar, Gerardo Morfini, Scott T Brady
Sensory neuropathies are the most common neurological complication of HIV. Of these, distal sensory polyneuropathy (DSP) is directly caused by HIV infection and characterized by length-dependent axonal degeneration of dorsal root ganglion (DRG) neurons. Mechanisms for axonal degeneration in DSP remain unclear, but recent experiments revealed that the HIV glycoprotein gp120 is internalized and localized within axons of DRG neurons. Based on these findings, we investigated whether intra-axonal gp120 might impair fast axonal transport (FAT), a cellular process critical for appropriate maintenance of the axonal compartment...
December 2016: ASN Neuro
https://www.readbyqxmd.com/read/27872144/cytotoxic-1-deoxysphingolipids-are-metabolized-by-a-cytochrome-p450-dependent-pathway
#16
Irina Alecu, Alaa Othman, Anke Penno, Essa M Saied, Christoph Arenz, Arnold von Eckardstein, Thorsten Hornemann
1-Deoxysphingolipids (1-deoxySLs) are atypical sphingolipids which are formed when serine palmitoyltransferase condenses palmitoyl-CoA with alanine instead of serine during sphingolipid synthesis. 1-DeoxySLs are toxic to neurons and pancreatic beta-cells. Pathologically elevated 1-deoxySLs cause the inherited neuropathy HSAN1 and are also found in type 2 diabetes. Diabetic sensory polyneuropathy and HSAN1 are clinically very similar, suggesting that 1-deoxySLs may be implicated in both pathologies. 1-DeoxySLs are considered to be dead-end metabolites, as they lack the C1-hydroxyl group which is essential for the canonical degradation of sphingolipids...
November 21, 2016: Journal of Lipid Research
https://www.readbyqxmd.com/read/27871444/polyneuropathy-in-levodopa-treated-parkinson-s-patients
#17
Karol Szadejko, Krzysztof Dziewiatowski, Krzysztof Szabat, Piotr Robowski, Michał Schinwelski, Emilia Sitek, Jarosław Sławek
Recently published studies show that the prevalence of polyneuropathy (PNP) is higher in patients with Parkinson's disease (PD) than in age-matched controls. Its pathogenesis, however is a matter of controversy. The major hypothesis is the toxicity of high concentrations of homocysteine (Hcy) possibly related to levodopa (LD) therapy. The aim of the present study was to determine the prevalence of PNP, independent of other etiologies, and to determine the relationship to demographic and clinical factors in LD-treated Parkinson's patients...
December 15, 2016: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/27869457/autosomal-dominant-cerebellar-ataxia-deafness-and-narcolepsy-adca-dn-associated-with-progressive-cognitive-and-behavioral-deterioration
#18
Lisa A S Walker, Pierre Bourque, Andra M Smith, Jodi Warman Chardon
Objective: Autosomal dominant cerebellar ataxia with deafness and narcolepsy (ADCA-DN) is an emerging syndrome caused by mutations in the C-terminus end of the TS domain of the DNMT1 gene. ADCA-DN is also associated with sensorimotor polyneuropathy, extrapyramidal, and dysautonomic signs, as well as dementia. Little has been reported about the progressive cognitive impairment associated with ADCA-DN. Our objective is to provide a detailed characterization of the cognitive profile of ADCA-DN. Method: Three members of a kindred with ADCA-DN underwent comprehensive neuropsychological testing and neuroimaging...
November 21, 2016: Neuropsychology
https://www.readbyqxmd.com/read/27868289/determinants-of-health-related-quality-of-life-in-anti-mag-neuropathy-a-cross-sectional-multicentre-european-study
#19
Emilien Delmont, Fu Liong Hiew, Julien Cassereau, Anne-Catherine Aubé-Nathier, Aude-Marie Grapperon, Shahram Attarian, Yusuf A Rajabally
Our objective was to assess determinants of quality of life (QoL) in anti-myelin associated glycoprotein antibody (MAG) neuropathy. The SF-36 questionnaire was assessed in 55 patients, from Marseille, Angers (France) and Birmingham (United Kingdom). Routine clinical evaluations included MRC sum score, INCAT sensory score, Inflammatory Rasch-built Overall Disability Score (I-RODS), ataxia score, Jamar grip dynamometry, timed 10 m-walk, Neuropathic Pain Symptom Inventory (NPSI) score, and Fatigue Severity Score (FSS)...
November 21, 2016: Journal of the Peripheral Nervous System: JPNS
https://www.readbyqxmd.com/read/27867513/ultrasound-guided-alcohol-neurolysis-of-lateral-femoral-cutaneous-nerve-for-intractable-meralgia-paresthetica-a-case-series
#20
Arif Ahmed, Divesh Arora, Amit Kumar Kochhar
Meralgia paresthetica is a rare sensory entrapment neuropathy which leads to burning, tingling and numbness in the antero-lateral aspect of thigh. Mostly it runs a benign course, and responds to conservative measures. We present a case series of six patients with intractable meralgia paresthetica with severe pain over antero-lateral thigh along the distribution of lateral cutaneous nerve of thigh which was further confirmed by nerve conduction study. These patients did not respond to the oral anti-neuropathic medications...
November 2016: British Journal of Pain
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