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Peripheral neuropathy

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https://www.readbyqxmd.com/read/28935176/current-insight-in-the-localized-insulin-derived-amyloidosis-lida-clinico-pathological-characteristics-and-differential-diagnosis
#1
REVIEW
Amir Mehdi Ansari, Lais Osmani, Aerielle E Matsangos, Qing K Li
BACKGROUND: In diabetic patients, subcutaneous insulin injection may cause several types of injection site-related lesions, such as lipoatrophy, insulin-induced cutaneous lipohypertrophy (IICL), allergic reaction, and iatrogenic localized insulin-derived amyloidosis (LIDA). Among these complications, both IICL and LIDA present as tumor-like and slow growing lesions; and they may be confused with one another. The clinical implication and management of IICL and LIDA are different. LIDA causes poor blood glycemic controls due to inadequate absorption of the insulin...
September 1, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28934536/glomus-tumor-of-the-sciatic-nerve-an-extraspinal-cause-of-sciatica
#2
Basilia Onyinyechukwu Nwankwo, Robert M Henshaw, Dhruv Kumar
Glomus tumors are small, benign tumors that arise from glomus bodies, structures found normally within the dermis that assist in temperature regulation via their vasoconstrictive response to sympathetic stimuli. Glomus tumors are found typically in the hand and are classically a cause of focal pain and temperature sensitivity. They often present as a small blue lesion seen under the nail bed of a finger or a toe and cause point tenderness. Glomus tumors of peripheral nerves are exceedingly rare and can lead to disability akin to compressive neuropathy when present...
September 21, 2017: Orthopedics
https://www.readbyqxmd.com/read/28934388/loss-of-slc25a46-causes-neurodegeneration-by-affecting-mitochondrial-dynamics-and-energy-production-in-mice
#3
Zhuo Li, Yanyan Peng, Robert B Hufnagel, Yueh-Chiang Hu, Chuntao Zhao, Luis F Queme, Zaza Khuchua, Ashley M Driver, Fei Dong, Q Richard Lu, Diana M Lindquist, Michael P Jankowski, Rolf W Stottmann, Winston W Y Kao, Taosheng Huang
Recently, we identified biallelic mutations of SLC25A46 in patients with multiple neuropathies. Functional studies revealed that SLC25A46 may play an important role in mitochondrial dynamics by mediating mitochondrial fission. However, the cellular basis and pathogenic mechanism of the SLC25A46-related neuropathies are not fully understood. Thus, we generated a Slc25a46 knock-out mouse model. Mice lacking SLC25A46 displayed severe ataxia, mainly caused by degeneration of Purkinje cells. Increased numbers of small, unmyelinated and degenerated optic nerves as well as loss of retinal ganglion cells indicated optic atrophy...
October 1, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28934386/expression-of-the-neuropathy-associated-mtmr2-gene-rescues-mtm1-associated-myopathy
#4
Matthieu A Raess, Belinda S Cowling, Dimitri L Bertazzi, Christine Kretz, Bruno Rinaldi, Jean-Marie Xuereb, Pascal Kessler, Norma B Romero, Bernard Payrastre, Sylvie Friant, Jocelyn Laporte
Myotubularins (MTMs) are active or dead phosphoinositides phosphatases defining a large protein family conserved through evolution and implicated in different neuromuscular diseases. Loss-of-function mutations in MTM1 cause the severe congenital myopathy called myotubular myopathy (or X-linked centronuclear myopathy) while mutations in the MTM1-related protein MTMR2 cause a recessive Charcot-Marie-Tooth peripheral neuropathy. Here we aimed to determine the functional specificity and redundancy of MTM1 and MTMR2, and to assess their abilities to compensate for a potential therapeutic strategy...
October 1, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28934368/a-single-danio-rerio-hars-gene-encodes-both-cytoplasmic-and-mitochondrial-histidyl-trna-synthetases
#5
Ashley L Waldron, Sara Helms Cahan, Christopher S Franklyn, Alicia M Ebert
Histidyl tRNA Synthetase (HARS) is a member of the aminoacyl tRNA synthetase (ARS) family of enzymes. This family of 20 enzymes is responsible for attaching specific amino acids to their cognate tRNA molecules, a critical step in protein synthesis. However, recent work highlighting a growing number of associations between ARS genes and diverse human diseases raises the possibility of new and unexpected functions in this ancient enzyme family. For example, mutations in HARS have been linked to two different neurological disorders, Usher Syndrome Type IIIB and Charcot Marie Tooth peripheral neuropathy...
2017: PloS One
https://www.readbyqxmd.com/read/28933964/identification-of-novel-spg11-mutations-in-a-cohort-of-chinese-families-with-hereditary-spastic-paraplegia
#6
Juan Du, Ya-Cen Hu, Bei-Sha Tang, Hong Jiang, Lu Shen
Hereditary spastic paraplegia (HSP) is a group of clinically and genetically heterogeneous neurological diseases. To date, studies about Chinese ARHSP have been small and limited to single case. To fill this gap, we have scanned the whole exons of KIAA1840, ZFYVE26, SPG7 and CYP7B1 genes in a group of 36 unrelated ARHSP families, which is the first study conducted to investigate the mutation frequency of these ARHSP types in China. Finally, SPG11 mutations are found in 33.33% (12/36) of ARHSP patients in our study, and no mutation was identified in SPG15, SPG5 or SPG7 genes...
September 21, 2017: International Journal of Neuroscience
https://www.readbyqxmd.com/read/28933311/mg17-a-novel-triazole-derivative-abrogated-neuroinflammation-and-related-neurodegenerative-symptoms-in-rodents
#7
Gangadhar Matharasala, Ganesh Samala, Yogeeswari Perumal
The objective of present study is to explore multiple effects of the compound MG17 and relate them to achieve better therapeutic potential against neuroinflammation related disorders. We examined whether our compound is acting through regulating neuroinflammatory mediators. We have done some preliminary behavioral studies to shortlist the derivatives using rodent models of peripheral nerve injury in our earlier publication and now we extended our screening studies to explore the test compounds efficacy on other related peripheral neurological disorders such as Streptozotocin-induced diabetic peripheral neuropathy (DPN) and methyl mercury (MeHg) induced neurodegeneration in rats...
September 19, 2017: Current Molecular Pharmacology
https://www.readbyqxmd.com/read/28932240/perspectives-on-peripheral-neuropathy-as-a-consequence-of-metformin-induced-vitamin-b12-deficiency-in-t2dm
#8
REVIEW
Marwan A Ahmed, George L Muntingh, Paul Rheeder
Peripheral neuropathy (PN) is a primary complication of type 2 diabetes mellitus (T2DM) and a direct manifestation of vitamin B12 deficiency. Examining the effects of metformin use on PN status became imperative following clinical studies that showed the vitamin B12-lowering effect of the medication. The complexity of the topic and the inconsistency of the results warrant consideration of topic-specific perspectives for better understanding of the available evidence and more appropriate design of future studies...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/28932013/effects-of-whole-body-vibration-therapy-on-perception-thresholds-of-type-2-diabetic-patients-with-peripheral-neuropathy-a-randomized-controlled-trial
#9
Kyeongjin Lee
[Purpose] The aim of this study was to investigate the effect of whole-body vibration training on perception thresholds in type 2 diabetic patients with peripheral neuropathy. [Subjects and Methods] Fifty-nine patients with diabetic neuropathy participated in the study. They were randomly divided into the experimental group (n=29) and the control group (n=30). The experimental group performed whole-body vibration training, whereas the control group performed only lower body training in the same posture without using whole-body vibrator for 6 weeks...
September 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28930847/guillain-barr%C3%A3-like-axonal-polyneuropathy-associated-with-toscana-virus-infection-a-case-report
#10
Eugenia Rota, Nicola Morelli, Paolo Immovilli, Paola De Mitri, Donata Guidetti
RATIONALE: Numerous cases of post-infectious Guillain-Barré syndrome (GBS) have been reported in the literature. Toscana virus (TOSV) is an arthropod-borne emerging pathogen in the Mediterranean area. PATIENT CONCERNS: A 40-year-old male patient was admitted to hospital for acute facial weakness, associated to numbness paraesthesias at lower and upper limbs. The neurological examination revealed facial diplegia and reduced tendon reflexes. The nerve conduction studies documented an acute motor and sensory axonal neuropathy (AMSAN); the lumbar puncture detected albuminocytologic dissociation...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28930549/growth-factors-in-the-pathogenesis-of-diabetic-foot-ulcers
#11
Min Qi, Qiuhong Zhou, Weiqi Zeng, Lisha Wu, Shuang Zhao, Wangqing Chen, Chang Luo, Minxue Shen, Jianglin Zhang, Can-E Tang
Foot ulcers affect 15% of patients with diabetes, resulting in a great health burden. The occurrence and development of diabetic foot ulcers is associated with neuropathy, peripheral arterial disease, and infection. Several growth factors are involved in these processes, including epidermal growth factor, vascular endothelial growth factor, transforming growth factor-beta, fibroblast growth factor, and erythropoietin, which could promote wound healing of patients with diabetes. Thus, this review discusses the role of these growth factors in the pathogenesis of diabetic foot ulcers, aiming to achieve novel insights into the management of diabetic foot ulcers...
January 1, 2018: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/28930494/simplify-1-a-phase-iii-randomized-trial-of-momelotinib-versus-ruxolitinib-in-janus-kinase-inhibitor-na%C3%A3-ve-patients-with-myelofibrosis
#12
Ruben A Mesa, Jean-Jacques Kiladjian, John V Catalano, Timothy Devos, Miklos Egyed, Andrzei Hellmann, Donal McLornan, Kazuya Shimoda, Elliott F Winton, Wei Deng, Ronald L Dubowy, Julia D Maltzman, Francisco Cervantes, Jason Gotlib
Purpose We evaluated the efficacy and safety of momelotinib, a potent and selective Janus kinase 1 and 2 inhibitor (JAKi), compared with ruxolitinib, in JAKi-naïve patients with myelofibrosis. Patients and Methods Patients (N = 432) with high risk or intermediate-2 risk or symptomatic intermediate-1 risk myelofibrosis were randomly assigned to receive 24 weeks of treatment with momelotinib 200 mg once daily or ruxolitinib 20 mg twice a day (or per label), after which all patients could receive open-label momelotinib...
September 20, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28929513/association-between-hba1c-and-peripheral-neuropathy-in-a-10-year-follow-up-study-of-people-with-normal-glucose-tolerance-impaired-glucose-tolerance-and-type-2-diabetes
#13
M Peterson, R Pingel, N Lagali, L B Dahlin, O Rolandsson
AIMS: To explore the association between HbA1c and sural nerve function in a group of people with normal glucose tolerance, impaired glucose tolerance or Type 2 diabetes. METHODS: We conducted a 10-year follow-up study in 87 out of an original 119 participants. At study commencement (2004), 64 men and 55 women (mean age 61.1 years) with normal glucose tolerance (n=39), impaired glucose tolerance (n=29), or Type 2 diabetes (n=51) were enrolled. At the 2014 follow-up (men, n=46, women, n=41; mean age 71...
September 20, 2017: Diabetic Medicine: a Journal of the British Diabetic Association
https://www.readbyqxmd.com/read/28928632/neurophysiology-of-the-celiac-brain-disentangling-gut-brain-connections
#14
REVIEW
Manuela Pennisi, Alessia Bramanti, Mariagiovanna Cantone, Giovanni Pennisi, Rita Bella, Giuseppe Lanza
Celiac disease (CD) can be considered a complex multi-organ disorder with highly variable extra-intestinal, including neurological, involvement. Cerebellar ataxia, peripheral neuropathy, seizures, headache, cognitive impairment, and neuropsychiatric diseases are complications frequently reported. These manifestations may be present at the onset of the typical disease or become clinically evident during its course. However, CD subjects with subclinical neurological involvement have also been described, as well as patients with clear central and/or peripheral nervous system and intestinal histopathological disease features in the absence of typical CD manifestations...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28927829/230th-enmc-international-workshop-improving-future-assessment-and-research-in-igm-anti-mag-peripheral-neuropathy-a-consensus-collaborative-effort-naarden-the-netherlands-24-26-february-2017
#15
Mariëlle H J Pruppers, Ingemar S J Merkies, Michael P T Lunn, Nicolette C Notermans
No abstract text is available yet for this article.
August 2, 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/28927011/assessing-autophagy-in-sciatic-nerves-of-a-rat-model-that-develops-inflammatory-autoimmune-peripheral-neuropathies
#16
REVIEW
Susana Brun, Nicolas Schall, Hélène Jeltsch-David, Jérôme de Sèze, Sylviane Muller
The rat sciatic nerve has attracted widespread attention as an excellent model system for studying autophagy alterations in peripheral neuropathies. In our laboratory, we have developed an original rat model, which we used currently in routine novel drug screening and to evaluate treatment strategies for chronic inflammatory demyelinating polyneuropathy (CIDP) and other closely related diseases. Lewis rats injected with the S-palmitoylated P0(180-199) peptide develop a chronic, sometimes relapsing-remitting type of disease...
September 18, 2017: Cells
https://www.readbyqxmd.com/read/28926640/aire-deficient-mice-provide-a-model-of-corneal-and-lacrimal-gland-neuropathy-in-sj%C3%A3-gren-s-syndrome
#17
Feeling Y Chen, Albert Lee, Shaokui Ge, Sara Nathan, Sarah M Knox, Nancy A McNamara
Sjögren's syndrome (SS) is a chronic, autoimmune exocrinopathy that leads to severe dryness of the mouth and eyes. Exocrine function is highly regulated by neuronal mechanisms but little is known about the link between chronic inflammation, innervation and altered exocrine function in the diseased eyes and exocrine glands of SS patients. To gain a better understanding of neuronal regulation in the immunopathogenesis of autoimmune exocrinopathy, we profiled a mouse model of spontaneous, autoimmune exocrinopathy that possess key characteristics of peripheral neuropathy experienced by SS patients...
2017: PloS One
https://www.readbyqxmd.com/read/28926349/a-nurse-led-care-program-for-breast-cancer-patients-in-a-chemotherapy-day-center-a-randomized-controlled-trial
#18
Xiao Bin Lai, Shirley Siu Yin Ching, Frances Kam Yuet Wong, Carenx Wai Yee Leung, Lai Ha Lee, Jessica Shuk Yin Wong, Yim Fan Lo
BACKGROUND: Healthcare providers are facing the challenge of helping cancer patients cope with the impact of outpatient-based chemotherapy. A nurse-led care program was proposed to address this challenge. OBJECTIVE: The aim of this study was to examine the effects of a nurse-led care program for patients receiving outpatient-based chemotherapy. METHODS: This was a single-center, open-label, 2-arm parallel trial with equal randomization (NCT02228200)...
September 19, 2017: Cancer Nursing
https://www.readbyqxmd.com/read/28925940/zebrafish-as-a-model-for-the-study-of-microvascular-complications-of-diabetes-and-their-mechanisms
#19
REVIEW
Karl Heckler, Jens Kroll
Diabetes mellitus (DM) is a crucial metabolic disease that leads to severe disorders. These include macrovascular complications such as myocardial infarction, stroke, and peripheral artery disease and microvascular complications including diabetic nephropathy, neuropathy, and retinopathy. Diabetes mellitus, along with its associated organ pathologies, is one of the key problems in today's medicine. Zebrafish is an upcoming disease model organism in diabetes research. Its glucose metabolism and the pathways of reactive metabolite formation are very similar to those of humans...
September 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28925884/prevention-and-treatment-for-chemotherapy-induced-peripheral-neuropathy-therapies-based-on-cipn-mechanisms
#20
Lang-Yue Hu, Wen-Li Mi, Gen-Cheng Wu, Yan-Qing Wang, Qi-Liang Mao-Ying
BACKGROUND: Chemotherapy-induced peripheral neuropathy (CIPN) is a progressive, enduring, and often irreversible adverse effect of many antineoplastic agents, among which sensory abnormities are common and the most suffering issues. The pathogenesis of CIPN has not been completely understood, and strategies for CIPN prevention and treatment are still open problems for medicine. OBJECTIVES: The objective of this paper is to review the mechanism-based therapies against sensory abnormities in CIPN...
September 15, 2017: Current Neuropharmacology
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