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Diabetic neuropathic pain

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https://www.readbyqxmd.com/read/29346515/a-brain-based-pain-facilitation-mechanism-contributes-to-painful-diabetic-polyneuropathy
#1
Andrew R Segerdahl, Andreas C Themistocleous, Dean Fido, David L Bennett, Irene Tracey
The descending pain modulatory system represents one of the oldest and most fundamentally important neurophysiological mechanisms relevant to pain. Extensive work in animals and humans has shown how a functional imbalance between the facilitatory and inhibitory components is linked to exacerbation and maintenance of persistent pain states. Forward translation of these findings into clinical populations is needed to verify the relevance of this imbalance. Diabetic polyneuropathy is one of the most common causes of chronic neuropathic pain; however, the reason why ∼25-30% of patients with diabetes develop pain is not known...
January 15, 2018: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29338623/diabetic-peripheral-neuropathic-pain-from-the-perspective-of-turkish-patients-a-qualitative-study
#2
Zehra Gok Metin, Ismail Emre Arslan
INTRODUCTION: Diabetic peripheral neuropathy (DPN) affects almost 30% to 50% of patients with diabetes, 40% to 60% of whom suffer from diabetic peripheral neuropathic pain (DPNP). Few studies have focused on individual experiences of DPNP in patients with diabetes. The purpose of this qualitative study was to elucidate the effects of DPNP on daily life and individual feelings regarding living with DPNP from the perspective of Turkish patients. METHOD: A total of 14 patients were interviewed, and interpretative phenomenological analysis was used to identify themes...
January 1, 2018: Journal of Transcultural Nursing: Official Journal of the Transcultural Nursing Society
https://www.readbyqxmd.com/read/29262297/antiallodynic-and-antihyperalgesic-activity-of-new-3-3-diphenyl-propionamides-with-anticonvulsant-activity-in-models-of-pain-in-mice
#3
Anna Rapacz, Jolanta Obniska, Paulina Koczurkiewicz, Katarzyna Wójcik-Pszczoła, Agata Siwek, Anna Gryboś, Sabina Rybka, Aleksandra Karcz, Elżbieta Pękala, Barbara Filipek
Anticonvulsant drugs are used to treat a wide range of non-epileptic conditions, including chronic pain. The aim of the present experiments was to examine analgesic activity of three new 3,3-diphenyl-propionamides, which had previously demonstrated anticonvulsant activity in the MES (maximal electroshock seizure), scPTZ (subcutaneous pentylenetetrazole) and/or 6Hz (psychomotor seizure) tests in mice. Antinociceptive activity was examined in mouse models of acute pain (the hot plate test) and tonic pain (the formalin test) in mice...
December 17, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29240741/a-retrospective-audit-of-the-characteristics-and-treatment-outcomes-in-patients-with-diabetes-related-charcot-neuropathic-osteoarthropathy
#4
Joanne Dixon, Joshua Coulter, Michele Garrett, Rick Cutfield
AIMS: To review the characteristics, management and outcomes one year after diagnosis in patients with diabetes related charcot neuropathic osteoarthropathy (CN) treated at the Diabetes Podiatry service, Waitemata District Health Board (WDHB) between 2000-2014. METHODS: Patients with diabetes and recorded diagnosis of CN were identified from the podiatry service records. Clinical details were retrospectively obtained from WDHB databases and patient medical records...
December 15, 2017: New Zealand Medical Journal
https://www.readbyqxmd.com/read/29237480/achilles-tenodesis-for-calcaneal-insufficiency-avulsion-fractures-associated-with-diabetes-mellitus
#5
Youngrak Choi, Young-Woo Kwon, Young-Suk Sim, Taeho Kim, Dayoung Song, Soohyun Lee
BACKGROUND: Calcaneal insufficiency avulsion (CIA) fractures often present with neuropathic etiology, such as Charcot neuroarthropathy (CN). Under the same surgical procedures, the outcomes of CIA fractures are less desirable, compared to the outcomes of the traumatic calcaneal avulsion fractures. Here, the study suggests Achilles tenodesis technique using suture anchor after resection of the CIA fracture fragments could provide satisfactory clinical results in the cases of surgically indicated CIA fractures...
December 13, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29234979/neuroprotective-effects-of-moringa-oleifera-bio-guided-gc-ms-identification-of-active-compounds-in-diabetic-neuropathic-pain-model
#6
Karim Raafat, Fadi Hdaib
OBJECTIVES: To explore the phytotherapeutic-activities of Moringa oleifera (MO) seeds on painful diabetic neuropathy in alloxan-induced diabetic mice. METHODS: The bio-guided fractionation of MO utilizing column chromatography aided with GC-MS was used to detect the most active constituent of MO. Hyperalgesia, using tail-flick and hot-plate latency experiments, and mechanical-allodynia, utilizing von-Frey filaments, were evaluated before and after 8 weeks of intraperitoneal alloxan administration (180 mg/kg)...
December 12, 2017: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29225253/an-analysis-of-the-neuropathic-pain-components-in-rheumatoid-arthritis-patients
#7
Satoshi Ito, Daisuke Kobayashi, Akira Murasawa, Ichiei Narita, Kiyoshi Nakazono
Objective To analyze the neuropathic pain (NeP) components in patients with rheumatoid arthritis (RA). Patients and Methods The pain DETECT questionnaire (PD-Q) was completed by 300 RA patients (79 men, 221 women). Results Nine patients (3.0%) were categorized as likely NeP, 33 (11.0%) were categorized as possible NeP, and 258 (86.0%) were categorized as unlikely NeP. When we excluded patients with diabetes mellitus, spinal diseases, neurological diseases, and herpes zoster infection (conditions associated with NeP), 5 of the patients (1...
December 8, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29204447/effects-of-lncrna-bc168687-sirna-on-diabetic-neuropathic-pain-mediated-by-p2x7-receptor-on-sgcs-in-drg-of-rats
#8
Chenglong Liu, Jia Tao, Hui Wu, Yixin Yang, Qiang Chen, Zeyu Deng, Jiandi Liu, Changshui Xu
Diabetic neuropathic pain (DNP), one of the early symptoms of diabetic neuropathy, relates to metabolic disorders induced by high blood glucose, neurotrophic vascular ischemia and hypoxia, and autoimmune factors. This study was aimed at exploring the effects of long noncoding RNA (lncRNA) BC168687 siRNA on DNP mediated by P2X7 receptor on SGCs in DRG of rats. The mechanical withdrawal threshold (MWT) and thermal withdrawal latency (TWL) of rats, the expression levels of P2X7 mRNA and protein in the DRG, and nitric oxide (NO) in the serum were, respectively, detected in our study...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29199767/oxcarbazepine-for-neuropathic-pain
#9
REVIEW
Muke Zhou, Ning Chen, Li He, Mi Yang, Cairong Zhu, Fengbo Wu
BACKGROUND: Several anticonvulsant drugs are used in the management of neuropathic pain. Oxcarbazepine is an anticonvulsant drug closely related to carbamazepine. Oxcarbazepine has been reported to be efficacious in the treatment of neuropathic pain, but evidence from randomised controlled trials (RCTs) is conflicting. Oxcarbazepine is reportedly better tolerated than carbamazepine. This is the first update of a review published in 2013. OBJECTIVES: To assess the benefits and harms of oxcarbazepine for different types of neuropathic pain...
December 2, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29176367/rare-nav1-7-variants-associated-with-painful-diabetic-peripheral-neuropathy
#10
Iulia Blesneac, Andreas C Themistocleous, Carl Fratter, Linus J Conrad, Juan D Ramirez, James J Cox, Solomon Tesfaye, Pallai R Shillo, Andrew S C Rice, Stephen J Tucker, David L H Bennett
Diabetic peripheral neuropathy (DPN) is a common disabling complication of diabetes. Almost half of DPN patients develop neuropathic pain for which current analgesic treatments are inadequate. Understanding the role of genetic variability in the development of painful DPN is needed for improved understanding of pain pathogenesis, for better patient stratification in clinical trials and to target therapy more appropriately. Here we examined the relationship between variants in the voltage gated sodium channel Nav1...
November 22, 2017: Pain
https://www.readbyqxmd.com/read/29163027/mechanisms-of-osteoarthritic-pain-studies-in-humans-and-experimental-models
#11
REVIEW
Annett Eitner, Gunther O Hofmann, Hans-Georg Schaible
Pain due to osteoarthritis (OA) is one of the most frequent causes of chronic pain. However, the mechanisms of OA pain are poorly understood. This review addresses the mechanisms which are thought to be involved in OA pain, derived from studies on pain mechanisms in humans and in experimental models of OA. Three areas will be considered, namely local processes in the joint associated with OA pain, neuronal mechanisms involved in OA pain, and general factors which influence OA pain. Except the cartilage all structures of the joints are innervated by nociceptors...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29159712/effect-of-kaempferol-isolated-from-seeds-of-eruca-sativa-on-changes-of-pain-sensitivity-in-streptozotocin-induced-diabetic-neuropathy
#12
Lalit Kishore, Navpreet Kaur, Randhir Singh
Generation of excessive reactive oxygen species (ROS) and advanced glycation end products (AGEs), and cellular apoptosis are implicated in the pathogenesis of diabetic neuropathy. Present study was aimed to explore the effect of Eruca sativa and Kaempferol (KP) on hyperalgesia (thermal and mechanical); tactile allodynia, motor nerve conduction velocity (MNCV) and oxidative-nitrosative stress in streptozotocin (STZ) induced experimental diabetes. Neuropathy developed in diabetic rats was evident from a marked hyperalgesia and allodynia; reduced MNCV associated with excess formation of AGEs and ROS...
November 20, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/29155701/an-ultrasonic-tool-for-nerve-conduction-block-in-diabetic-rat-models
#13
Yee Fun Lee, Chou-Ching Lin, Jung-Sung Cheng, Gin-Shin Chen
Nerve conduction block with a high intensity-focused ultrasound (HIFU) transducer has been performed in normal and diabetic animal models recently. HIFU can reversibly block the conduction of peripheral nerves without damaging the nerves while using an appropriate ultrasonic parameter. Temporary and partial block of the action potentials of nerves shows that HIFU has the potential to be a useful clinical treatment for pain relief. This work demonstrates the procedures for suppressing the action potentials of neuropathic nerves in diabetic rats in vivo using an HIFU transducer...
October 20, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29154979/small-fiber-neuropathy-diagnosis-causes-and-treatment
#14
Damien Sène
Small fiber neuropathy, which affects the sensory A≏ and C fibers, is now a major diagnostic and therapeutic challenge. Nearly 7% of the general population have chronic neuropathic pain responsible for severe quality-of-life impairments. Awareness must therefore be raised among clinicians of the somatosensory and autonomic symptoms that can reveal small fiber neuropathy, appropriate diagnostic investigations, most common causes, and best treatment options for each patient profile. To help achieve this goal, the present review article discusses the clinical presentation of neuropathic pain and paresthesia and/or autonomic dysfunction due to involvement of nerves supplying exocrine glands and smooth muscle; normal findings from standard electrophysiological investigations; most informative diagnostic tests (epidermal nerve fiber density in a skin biopsy, laser-evoked potentials, heat- and cold-detection thresholds, electrochemical skin conductance); main causes, which consist chiefly of metabolic diseases (diabetes mellitus, glucose intolerance), dysimmunity syndromes (Sjögren's syndrome, sarcoidosis, monoclonal gammopathy), and genetic abnormalities (familial amyloidosis due to a transthyretin mutation, Fabry disease, sodium channel diseases); and the available symptomatic and etiological treatments...
November 15, 2017: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/29154836/a-new-promising-simultaneous-approach-for-attenuating-type-ii-diabetes-mellitus-induced-neuropathic-pain-in-rats-inos-inhibition-and-neuroregeneration
#15
Abhilasha Ahlawat, Saurabh Sharma
In view of the pathologic basis for the treatment of diabetic neuropathy, it is important to enhance nerve regeneration as well as prevent nerve degeneration. So, in the present study, we have investigated the effect of S-Methylisothiourea Sulfate (selective iNOS inhibitor) and Citicoline, alone and in combination, on Type II diabetes mellitus induced neuropathic pain in wistar rats. Type II diabetes was induced by providing high fat diet and low dose of Streptozotocin for 35 days in rats. Type II diabetes mellitus was assessed in terms of increased glucose, triglycerides, cholesterol, LDL levels, glucose tolerance and decrease in HDL levels...
November 14, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29139278/improving-pain-control-in-diabetic-neuropathy
#16
REVIEW
Peter Paisley, Mick Serpell
Diabetic neuropathy is thought to affect 1.9% of the world’s population and 50% of patients with a diagnosis of diabetes mellitus which would equate to 2.25 million people in the UK. The term diabetic neuropathy includes multiple distinct clinical entities that have been classified under the broad headings of focal and multifocal neuropathies and symmetrical neuropathies. Peripheral diabetic neuropathy, a chronic distal symmetrical predominantly sensory neuropathy, is the most common form of diabetic neuropathy...
March 2017: Practitioner
https://www.readbyqxmd.com/read/29122628/a-novel-curcumin-derivative-for-the-treatment-of-diabetic-neuropathy
#17
Daniel J Daugherty, Alexandra Marquez, Nigel A Calcutt, David Schubert
Neuropathy is a common complication of long-term diabetes. Proposed mechanisms of neuronal damage caused by diabetes that are downstream of hyperglycemia and/or loss of insulin signaling include ischemic hypoxia, inflammation and loss of neurotrophic support. The curcumin derivative J147 is a potent neurogenic and neuroprotective drug candidate initially developed for the treatment of neurodegenerative conditions associated with aging that impacts many pathways implicated in the pathogenesis of diabetic neuropathy...
November 6, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/29114911/relationship-and-variation-of-diabetes-related-symptoms-sleep-disturbance-and-sleep-related-impairment-in-adults-with-type-2-diabetes
#18
Bingqian Zhu, Laurie Quinn, Cynthia Fritschi
AIM: The objective of this study was to examine whether diabetes-related symptoms (e.g. fatigue, neuropathic pain, diabetes distress and depressive symptoms) were related to sleep disturbance and sleep-related impairment in adults with type 2 diabetes while controlling for potential covariates. BACKGROUND: In people with type 2 diabetes, sleep disturbance and sleep-related impairment are common and likely associated with diabetes-related symptoms. However, limited research has investigated the predictive ability of diabetes-related symptoms on sleep...
November 8, 2017: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/29112785/associated-conditions-in-small-fiber-neuropathy-a-large-cohort-study-and-review-of-the-literature
#19
Bianca T A de Greef, Janneke G J Hoeijmakers, Carla M L Gorissen-Brouwers, Margot Geerts, Catharina G Faber, Ingemar S J Merkies
BACKGROUND: Small fiber neuropathy (SFN) is a common disorder, leading to neuropathic pain and autonomic symptoms. The objective of this study was to investigate associated conditions in a large cohort of SFN patients and compare the prevalence to healthy individuals. METHODS: A total of 921 patients with pure SFN were screened according to a standardized comprehensive diagnostic algorithm and compared with literature findings. RESULTS: In 53% of the patients, no associated condition could be found...
November 7, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29097792/interactions-of-notch1-and-tlr4-signaling-pathways-in-drg-neurons-of-in-vivo-and-in-vitro-models-of-diabetic-neuropathy
#20
Tianhua Chen, Hao Li, Yiting Yin, Yuanpin Zhang, Zhen Liu, Huaxiang Liu
Understanding the interactions between Notch1 and toll-like receptor 4 (TLR4) signaling pathways in the development of diabetic peripheral neuropathy may lead to interpretation of the mechanisms and novel approaches for preventing diabetic neuropathic pain. In the present study, the interactions between Notch1 and TLR4 signaling pathways were investigated by using dorsal root ganglion (DRG) from diabetic neuropathic pain rats and cultured DRG neurons under high glucose challenge. The results showed that high glucose induced not only Notch1 mRNA, HES1 mRNA, and TLR4 mRNA expression, but also Notch1 intracellular domain (NICD1) and TLR4 protein expression in DRG neurons...
November 2, 2017: Scientific Reports
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