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https://www.readbyqxmd.com/read/28320183/ischemic-optic-neuropathy-as-a-model-of-neurodegenerative-disorder-a-review-of-pathogenic-mechanism-of-axonal-degeneration-and-the-role-of-neuroprotection
#1
REVIEW
Saba Khalilpour, Shahrzad Latifi, Ghazaleh Behnammanesh, Amin Malik Shah Abdul Majid, Aman Shah Abdul Majid, Ali Tamayol
Optic neuropathy is a neurodegenerative disease which involves optic nerve injury. It is caused by acute or intermittent insults leading to visual dysfunction. There are number of factors, responsible for optic neuropathy, and the optic nerve axon is affected in all type which causes the loss of retinal ganglion cells. In this review we will highlight various mechanisms involved in the cell loss cascades during axonal degeneration as well as ischemic optic neuropathy. These mechanisms include oxidative stress, excitotoxicity, angiogenesis, neuroinflammation and apoptosis following retinal ischemia...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28320159/prevalence-of-peripheral-neuropathy-and-associated-factors-in-hiv-infected-patients
#2
Maria Luiza Areal Corrêa de Sá E Benevides, Sérgio Beduschi Filho, Rodrigo Debona, Eduardo Novaes Costa Bergamaschi, Jean Costa Nunes
The progress on HIV infection treatment has allowed a longer survival for HIV-infected patients. However, chronic comorbidities are emerging. Peripheral Neuropathy (PN) represents one of the most prevalent neurologic disorders among these patients, and comprehensive studies may contribute to a reduction in the morbidity of this condition. This is a cross-sectional analytic study conducted in a tertiary referral hospital in southern Brazil. This study investigates the prevalence of PN among HIV-infected patients and associated demographic, clinical and laboratory variables...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28320130/spg2-mimicking-multiple-sclerosis-in-a-family-identified-using-next-generation-sequencing
#3
Anna Rubegni, Carla Battisti, Alessandra Tessa, Alfonso Cerase, Stefano Doccini, Alessandro Malandrini, Filippo M Santorelli, Antonio Federico
Several single gene disorders can potentially be overlooked in the differential diagnostic evaluation of patients with multiple sclerosis (MS). Pelizaeus-Merzbacher disease and spastic paraplegia type 2 are allelic X-linked disorders associated with defective myelination of the central nervous system and mutations in PLP1. Neurological symptoms are occasionally observed in female carriers of these mutations. Two women - the proposita (Pt1) and her mother (Pt2) - reported walking difficulties since adolescence and showed progressive cognitive decline...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28320129/immunoglobulin-therapy-in-the-treatment-of-multifocal-motor-neuropathy
#4
REVIEW
Aditya Kumar, Huned S Patwa, Richard J Nowak
Multifocal motor neuropathy (MMN) is a chronic immune-mediated disorder leading to slowly progressive muscle weakness and wasting. Current treatments are aimed at modulating the immune system in order to avoid further decline and to maintain functional status. Intravenous immunoglobulin (IVIg) is widely used in the treatment of immune-mediated disorders and is the only treatment approved for MMN. While patients do remain stable with maintenance IVIg treatment, most patients will slowly deteriorate over many years...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28319875/electrophysiologic-features-of-ulnar-neuropathy-in-childhood-and-adolescence
#5
Ioannis Karakis, Wendy Liew, Heather Szelag Fournier, H Royden Jones, Basil T Darras, Peter B Kang
OBJECTIVE: To analyze patterns of nerve injury in pediatric ulnar neuropathy (PUN). METHODS: Retrospective analysis of 49 children with PUN. RESULTS: Sensory loss in digit V was the prevailing complaint (89%). Predominant localization was at the elbow (55%). Diminished ulnar SNAP was the most common abnormality (71%) with median axon loss estimate (MAXE) of 62%. Dorsal ulnar cutaneous (DUC) sensory nerve action potential (SNAP) was reduced in 55% with MAXE of 43%...
February 20, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28319561/pediatric-enteric-neuropathies-diagnosis-and-current-management
#6
Maggie L Westfal, Allan M Goldstein
PURPOSE OF REVIEW: Neurointestinal diseases are increasingly recognized as causes of significant gastrointestinal morbidity in children. This review highlights the most common pediatric enteric neuropathies and their diagnosis and management, emphasizing insights and discoveries from the most recent literature available. RECENT FINDINGS: The embryologic and histopathologic causes of enteric neuropathies are varied. They range from congenital aganglionosis in Hirschsprung disease, to autoimmune-mediated loss of neuronal subtypes in esophageal achalasia and Chagas disease, to degenerative neuropathies in some cases of chronic intestinal pseudo-obstruction and gastroparesis...
March 17, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28319326/altered-defecatory-behaviour-and-faecal-incontinence-in-a-video-tracked-animal-model-of-pudendal-neuropathy
#7
Liam A Devane, Eric Lucking, Judith Evers, Maria Buffini, S Mark Scott, Charles H Knowles, P Ronan O'Connell, James F X Jones
AIMS: To develop a behavioural animal model of faecal continence and assess the effect of retrouterine balloon inflation (RBI) injury. RBI in the rat causes pudendal neuropathy, a risk factor for obstetric related faecal incontinence in humans. METHOD: Video-tracking healthy rats (n=12) in a cage containing a latrine box was used to monitor their defaecatory behaviour index (DBI) over 2 weeks. DBI (range 0 - 1) was devised by dividing the defaecation rate (pellets/hour) outside the latrine by that of the whole cage...
March 20, 2017: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
https://www.readbyqxmd.com/read/28319106/a-systematic-review-on-the-impact-of-diabetes-mellitus-on-the-ocular-surface
#8
REVIEW
K Co Shih, K S-L Lam, L Tong
Diabetes mellitus is associated with extensive morbidity and mortality in any human community. It is well understood that the burden of diabetes is attributed to chronic progressive damage in major end-organs, but it is underappreciated that the most superficial and transparent organ affected by diabetes is the cornea. Different corneal components (epithelium, nerves, immune cells and endothelium) underpin specific systemic complications of diabetes. Just as diabetic retinopathy is a marker of more generalized microvascular disease, corneal nerve changes can predict peripheral and autonomic neuropathy, providing a window of opportunity for early treatment...
March 20, 2017: Nutrition & Diabetes
https://www.readbyqxmd.com/read/28319002/hba1c-in-relation-to-incident-diabetes-and-diabetes-related-complications-in-non-diabetic-adults-at-baseline
#9
Patricia Anne Metcalf, Cam Kyle, Tim Kenealy, Rod T Jackson
AIMS: We compared the utility of glycated hemoglobin (HbA1c) and oral glucose tolerance (oGTT) in non-diabetic patients for identifying incident diabetes; all-cause mortality; cardiovascular disease (CVD) mortality; CVD, coronary heart disease (CHD), and ischemic stroke events; and diabetes microvascular complications. METHODS: Data from a New Zealand community setting were prospectively linked to hospitalization, mortality, pharmaceutical and laboratory test results data...
February 21, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28318820/sarcoidosis-associated-small-fiber-neuropathy-in-a-large-cohort-clinical-aspects-and-response-to-ivig-and-anti-tnf-alpha-treatment
#10
Jinny O Tavee, Karen Karwa, Zubair Ahmed, Nicolas Thompson, Joseph Parambil, Daniel A Culver
OBJECTIVE: Small fiber neuropathy commonly affects patients with sarcoidosis and is often refractory to standard immunosuppressive therapies used for systemic disease. The clinical features of sarcoidosis-associated small fiber neuropathy (SSFN) and its response to medical therapy have not been described in a large population. METHODS: We performed a retrospective review of patients with SSFN seen at the Cleveland Clinic over a 4-year period. RESULTS: SSFN was identified in 143 individuals although other causes of neuropathy were found in 28 cases...
March 9, 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28318780/surface-electromyogram-and-muscle-ultrasonography-for-detection-of-muscle-fasciculations-in-pediatric-peripheral-neuropathy
#11
Masayoshi Oguri, Yoshiaki Saito, Tetsuya Okazaki, Wataru Matsumura, Koyo Ohno, Masami Togawa, Chisako Fukuda, Yuko Saito, Ichizo Nishino, Yoshihiro Maegaki
A 12-year-old girl presented with talipes equinus of both legs, attenuation of upper and lower limb tendon reflexes, thermal hyperalgesia, and reduction of vibratory sensation. On clinical examination, muscle twitches of fingers of both hands, as well as the abductor halluces and the dorsal interossei muscles of the right foot were observed. Nerve conduction velocity was significantly declined in the upper and lower extremities. Needle electromyography (EMG) was not performed; however, ultrasonography revealed repetitive, semi-regular muscle twitches lasting 0...
March 16, 2017: Brain & Development
https://www.readbyqxmd.com/read/28318734/effects-of-acetone-cyanohydrin-a-derivative-of-cassava-on-motor-activity-and-kidney-and-liver-function-in-wistar-rats
#12
E Rivadeneyra-Domínguez, C J Rosas-Jarquín, A Vázquez-Luna, R Díaz-Sobac, J F Rodríguez-Landa
INTRODUCTION: Acetone cyanohydrin (ACH) is a toxic substance present in cassava roots (Manihot esculenta Crantz) which results from enzymatic hydrolysis of linamarin. Long-term consumption is associated with 2 neurological disorders: konzo and tropical ataxic neuropathy. Previous studies have evaluated behavioural alterations linked to ACH consumption, but the toxic effects of this substance on physiological processes remain unknown. METHOD: 32 male Wistar rats were assigned to 4 experimental groups (n=8 per group): a vehicle group (0...
March 16, 2017: Neurología: Publicación Oficial de la Sociedad Española de Neurología
https://www.readbyqxmd.com/read/28317148/bortezomib-induced-peripheral-neuropathy-a-genome-wide-association-study-on-multiple-myeloma-patients
#13
Chiara Campo, Miguel Inacio da Silva Filho, Niels Weinhold, Seyed Hamidreza Mahmoudpour, Hartmut Goldschmidt, Kari Hemminki, Maximilian Merz, Asta Försti
The proteasome-inhibitor bortezomib was introduced into the treatment of multiple myeloma more than a decade ago. It is clinically beneficial, but peripheral neuropathy (PNP) is a side effect that may limit its use in some patients. To examine the possible genetic predisposing factors to PNP, we performed a genome-wide association study on 646 bortezomib-treated German multiple myeloma patients. Our aim was to identify genetic risk variants associated with the development of PNP as a serious side effect of the treatment...
March 20, 2017: Hematological Oncology
https://www.readbyqxmd.com/read/28315720/the-protective-effect-of-the-active-components-of-erpc-on-diabetic-peripheral-neuropathy-in-rats
#14
Gai-Mei Hao, Yong-Gang Liu, Yan Wu, Wei Xing, Shu-Zhen Guo, Yong Wang, Zheng-Lin Wang, Chun Li, Tian-Tian Lv, Hong-Liang Wang, Tian-Jiao Shi, Wei Wang, Jing Han
ETHNOPHARMACOLOGICAL RELEVANCE: Euonymus alatus, Radix trichosanthis, Panax notoginseng and Coptis chinensis are popular plants used in traditional Chinese medicine to treat diabetes. AIM OF THE STUDY: The aim of the study is to investigate the therapeutic effect of the active components of Euonymus alatus, Radix trichosanthis, Panax notoginseng and Coptis chinensis (cERPC) on diabetic peripheral neuropathy in the rats and explore the underlying mechanism involved...
March 15, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28315678/protective-effect-of-co-administration-of-curcumin-and-sildenafil-in-alcohol-induced-neuropathy-in-rats
#15
Maninder Kaur, Amarjeet Singh, Bimlesh Kumar, Sachin Kumar Singh, Amit Bhatia, Monica Gulati, T Prakash, Palak Bawa, Adil Hussain Malik
Neuropathic pain associated with chronic alcohol consumption is a medico-socioeconomical problem that affects both central and peripheral nervous system and has no satisfactory treatment till date. The present study was designed to investigate the protective effect of co-administration of curcumin and sildenafil on alcohol induced neuropathic pain in rats. In order to carry out this, ethanol (35% v/v, 10g/kg, p.o.) was administered for 10 weeks to induce neuropathic pain. Curcumin (30 and 60mg/kg, i.p.) and sildenafil (5 and 10mg/kg, i...
March 16, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28315279/the-role-of-sigma-1-receptor-as-a-neuroprotective-target-in-glaucoma
#16
Barbara Mysona, Neil Kansara, Jing Zhao, Kathryn Bollinger
The role of sigma 1 receptor (S1R) in glaucoma is emerging as a promising field of study. Glaucoma is an optic neuropathy that shares common pathogenic mechanisms with other neurodegenerative diseases such as Alzheimer's and Parkinson's disease . S1R modulates multiple cellular functions associated with neurodegeneration . These include Ca(2+) ion homeostasis, endoplasmic reticulum (ER) and oxidative stress , survival signaling pathways, neurotrophin secretion, and glial activation. S1R may also have neurorestorative properties including enhancement of neuronal plasticity and neurite outgrowth...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28314831/childhood-onset-leber-hereditary-optic-neuropathy
#17
Anna Majander, Richard Bowman, Joanna Poulton, Richard J Antcliff, M Ashwin Reddy, Michel Michaelides, Andrew R Webster, Patrick F Chinnery, Marcela Votruba, Anthony T Moore, Patrick Yu-Wai-Man
BACKGROUND: The onset of Leber hereditary optic neuropathy (LHON) is relatively rare in childhood. This study describes the clinical and molecular genetic features observed in this specific LHON subgroup. METHODS: Our retrospective study consisted of a UK paediatric LHON cohort of 27 patients and 69 additional cases identified from a systematic review of the literature. Patients were included if visual loss occurred at the age of 12 years or younger with a confirmed pathogenic mitochondrial DNA mutation: m...
March 17, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28306692/carpal-tunnel-syndrome-grading-using-high-resolution-ultrasonography
#18
Hala R El Habashy, Reem A El Hadidy, Sandra M Ahmed, Basma B El Sayed, Aya S Ahmed
PURPOSE: Carpal tunnel syndrome (CTS) is a common entrapment neuropathy of the wrist. The diagnosis of CTS has been a concern for physicians for a long time. The aim of this study is to evaluate the use of the median nerve (MN) cross-sectional area (CSA) in the wrist compared with the CSA in the forearm to grade the severity of CTS in Egyptian patients. METHODS: The CSAs of the MN in the wrist and forearm were measured in 72 wrists that were diagnosed with CTS via nerve conduction studies and 80 healthy wrists...
March 16, 2017: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/28306568/ketamine-for-cancer-pain-what-is-the-evidence
#19
Kelly Jonkman, Tine van de Donk, Albert Dahan
PURPOSE OF REVIEW: In this review, we assess the benefit of ketamine in the treatment of terminal cancer pain that is refractory to opioid treatment and/or complicated by neuropathy. RECENT FINDINGS: While randomized controlled trials consistently show lack of clinical efficacy of ketamine in treating cancer pain, a large number of open-label studies and case series show benefit. SUMMARY: Ketamine is an N-methyl-D-aspartate receptor antagonist that at low-dose has effective analgesic properties...
March 16, 2017: Current Opinion in Supportive and Palliative Care
https://www.readbyqxmd.com/read/28303912/new-technologies-for-the-assessment-of-neuropathies
#20
REVIEW
Roberto Gasparotti, Luca Padua, Chiara Briani, Giuseppe Lauria
Technical advances are rapidly changing the clinical and instrumental approach to peripheral nerve diseases. Magnetic resonance neurography, diffusion tensor imaging and nerve ultrasonography are increasingly entering the diagnostic workup of peripheral neuropathies as tools that complement neurophysiology and enable investigation of proximal structures, such as plexuses and roots. Progress in the design of magnetic resonance scanners and sequences, and the development of high-frequency ultrasound probes mean that high-resolution peripheral nerve imaging is possible, enabling detailed examination of nerve size, morphology and internal fascicular structure that can integrate nerve conduction studies into clinical practice...
March 17, 2017: Nature Reviews. Neurology
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