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Diabetic neuropathic pain

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https://www.readbyqxmd.com/read/27926736/structure-of-cc-chemokine-receptor-2-with-orthosteric-and-allosteric-antagonists
#1
Yi Zheng, Ling Qin, Natalia V Ortiz Zacarías, Henk de Vries, Gye Won Han, Martin Gustavsson, Marta Dabros, Chunxia Zhao, Robert J Cherney, Percy Carter, Dean Stamos, Ruben Abagyan, Vadim Cherezov, Raymond C Stevens, Adriaan P IJzerman, Laura H Heitman, Andrew Tebben, Irina Kufareva, Tracy M Handel
CC chemokine receptor 2 (CCR2) is one of 19 members of the chemokine receptor subfamily of human class A G-protein-coupled receptors. CCR2 is expressed on monocytes, immature dendritic cells, and T-cell subpopulations, and mediates their migration towards endogenous CC chemokine ligands such as CCL2 (ref. 1). CCR2 and its ligands are implicated in numerous inflammatory and neurodegenerative diseases including atherosclerosis, multiple sclerosis, asthma, neuropathic pain, and diabetic nephropathy, as well as cancer...
December 7, 2016: Nature
https://www.readbyqxmd.com/read/27922760/nervecheck-for-the-detection-of-sensory-loss-and-neuropathic-pain-in-diabetes
#2
Georgios Ponirakis, Maria N Odriozola, Samantha Odriozola, Ioannis N Petropoulos, Shazli Azmi, Maryam Ferdousi, Hassan Fadavi, Uazman Alam, Andrew Marshall, Maria Jeziorska, Anthony Miro, Ahmad Kheyami, Mitra Tavakoli, Ahmed Al-Ahmar, Maria B Odriozola, Ariel Odriozola, Rayaz A Malik
BACKGROUND: Accurate and economic detection of nerve damage in diabetes is key to more widespread diagnosis of patients with diabetic peripheral neuropathy (DPN) and painful diabetic neuropathy. This study examined the diagnostic performance of NerveCheck, an inexpensive ($500) quantitative sensory testing (QST) device. METHODS: One hundred forty-four subjects (74 with and 70 without diabetes) underwent assessment with NerveCheck, neuropathy disability score (NDS), nerve conduction studies (NCS), intraepidermal and corneal nerve fiber density (IENFD and CNFD), and McGill questionnaire for neuropathic pain...
December 6, 2016: Diabetes Technology & Therapeutics
https://www.readbyqxmd.com/read/27898216/characterization-of-prostacyclin-associated-leg-pain-in-patients-with-pulmonary-arterial-hypertension
#3
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/27891351/evaluation-of-effect-of-nishamalaki-on-stz-and-hfhf-diet-induced-diabetic-neuropathy-in-wistar-rats
#4
Jayshree Shriram Dawane, Vijaya Anil Pandit, Madhura Shirish Kumar Bhosale, Pallawi Shashank Khatavkar
INTRODUCTION: Diabetic neuropathy is one of the most common complications affecting 50% of diabetic patients. Neuropathic pain is the most difficult types of pain to treat. There is no specific treatment for neuropathy. Nishamalaki (NA), combination of Curcuma longa and Emblica officinalis used to treat Diabetes Mellitus (DM). So, efforts were made to test whether NA is useful in prevention of diabetic neuropathy. AIM: To evaluate the effect of NA on diabetic neuropathy in type 2 diabetic wistar rats...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27890700/biochanin-a-attenuates-neuropathic-pain-in-diabetic-rats
#5
Venkateswarlu Chundi, Siva Reddy Challa, Devala Rao Garikapati, Giridhar Juvva, Anusha Jampani, Sree Harsha Pinnamaneni, Sahithi Venigalla
BACKGROUND: Soya supplements are used in the treatment of neuropathic pain. Previous reports reveal that consumption of soy diet before nerve injury prevents the development of neuropathic pain in rats. Biochanin-A, a soy isoflavone, has a naturally occurring inhibitor of fatty acid amide hydrolase (FAAH) that metabolized endocannabinoids. OBJECTIVE: The objective was to evaluate efficacy of biochanin-A in streptozotocin (STZ) induced neuropathic pain in rat model...
November 25, 2016: Journal of Ayurveda and Integrative Medicine
https://www.readbyqxmd.com/read/27889175/inhibition-of-adenylyl-cyclase-in-the-spinal-cord-alleviates-painful-diabetic-neuropathy-in-zucker-diabetic-fatty-rats
#6
Hao Feng, Guodong Lu, Qingsong Li, Zhonghao Liu
OBJECTIVES: Diabetic neuropathy is the most common complication of both type 1 and type 2 diabetes. In this study, we tested the hypotheses that impaired Gi protein expression/function in the spinal cord is associated with the development of painful neuropathy in people with type 2 diabetes and that reduction of cyclic adenosine monophosphate (cAMP) production by inhibiting adenylyl cyclase in the spinal cord can alleviate diabetic neuropathy. METHODS: To this end, we examined the levels of cAMP, cAMP-dependent protein kinase (PKA) and cAMP response element-binding protein (CREB) in the spinal cord after the development of neuropathic pain in Zucker diabetic fatty (ZDF) rats with type 2 diabetes...
November 23, 2016: Canadian Journal of Diabetes
https://www.readbyqxmd.com/read/27857760/galanin-and-its-receptor-system-promote-the-repair-of-injured-sciatic-nerves-in-diabetic-rats
#7
Xiao-Feng Xu, Dan-Dan Zhang, Jin-Chi Liao, Li Xiao, Qing Wang, Wei Qiu
Various studies have reported that galanin can promote axonal regeneration of dorsal root ganglion neurons in vitro and inhibit neuropathic pain. However, little is known about its effects on diabetic peripheral neuropathy, and in vivo experimental data are lacking. We hypothesized that repeated applications of exogenous galanin over an extended time frame may also repair nerve damage in diabetic peripheral neuropathy, and relieve pain in vivo. We found that neuropathic pain occurred in streptozotocin-induced diabetic rats and was more severe after sciatic nerve pinch injury at 14 and 28 days than in diabetic sham-operated rats...
September 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/27851902/therapeutic-potential-of-mesenchymal-stem-cells-for-the-treatment-of-diabetic-peripheral-neuropathy
#8
Marianna Monfrini, Elisabetta Donzelli, Virginia Rodriguez-Menendez, Elisa Ballarini, Valentina Alda Carozzi, Alessia Chiorazzi, Cristina Meregalli, Annalisa Canta, Norberto Oggioni, Luca Crippa, Federica Avezza, Sara Silvani, Barbara Bonandrini, Marina Figliuzzi, Andrea Remuzzi, Carla Porretta-Serapiglia, Roberto Bianchi, Giuseppe Lauria, Giovanni Tredici, Guido Cavaletti, Arianna Scuteri
Type-1 Diabetes is generally treated with exogenous insulin administration. Despite treatment, a very common long term consequence of diabetes is the development of a disabling and painful peripheral neuropathy. The transplantation of pancreatic islets is an advanced alternative therapeutic approach, but its clinical application is still very limited, mainly because of the great number of islets required to complete the procedure and of their short-term survival. An intriguing method to improve the performance of pancreatic islets transplantation is the co-transplantation of Mesenchymal Stem Cells (MSCs), adult stem cells already known to support the survival of different cellular populations...
November 13, 2016: Experimental Neurology
https://www.readbyqxmd.com/read/27831985/randomized-double-blind-placebo-controlled-phase-iii-trial-of-duloxetine-monotherapy-in-japanese-patients-with-chronic-low-back-pain
#9
Shinichi Konno, Natsuko Oda, Toshimitsu Ochiai, Levent Alev
STUDY DESIGN: A 14-week, randomized, double-blind, multicenter, placebo-controlled study of Japanese patients with chronic low back pain (CLBP) who were randomized to either duloxetine 60 mg once daily or placebo. OBJECTIVE: This study aimed to assess the efficacy and safety of duloxetine monotherapy in Japanese patients with CLBP. SUMMARY OF BACKGROUND DATA: In Japan, duloxetine is approved for the treatment of depression, diabetic neuropathic pain, and pain associated with fibromyalgia; however, no clinical study of duloxetine has been conducted for CLBP...
November 15, 2016: Spine
https://www.readbyqxmd.com/read/27822619/the-5-lidocaine-medicated-plaster-its-inclusion-in-international-treatment-guidelines-for-treating-localized-neuropathic-pain-and-clinical-evidence-supporting-its-use
#10
REVIEW
Ralf Baron, Massimo Allegri, Gerardo Correa-Illanes, Guy Hans, Michael Serpell, Gerard Mick, Victor Mayoral
When peripheral neuropathic pain affects a specific, clearly demarcated area of the body, it may be described as localized neuropathic pain (LNP). Examples include postherpetic neuralgia and painful diabetic neuropathy, as well as post-surgical and post-traumatic pain. These conditions may respond to topical treatment, i.e., pharmaceutical agents acting locally on the peripheral nervous system, and the topical route offers advantages over systemic administration. Notably, only a small fraction of the dose reaches the systemic circulation, thereby reducing the risk of systemic adverse effects, drug-drug interactions and overdose...
December 2016: Pain and Therapy
https://www.readbyqxmd.com/read/27813425/emerging-drugs-for-diabetic-peripheral-neuropathy-and-neuropathic-pain
#11
Nikolaos Papanas, Dan Ziegler
Diabetic sensorimotor polyneuropathy (DSPN) is a common complication of diabetes. Areas covered: In this review, the authors discuss the emerging drugs for DSPN, which aim either at improving alleviation of neuropathic pain or addressing the putative mechanisms underlying diabetic neuropathy. Expert Opinion: Current treatment does not address the sensory deficits and pathogenesis underlying DSPN, so there is an unmet need for treatment options targeting the natural history of the condition. Some of these pathogenetic therapies have demonstrated clinically relevant improvements in neuropathic endpoints in recent randomised controlled trials...
November 18, 2016: Expert Opinion on Emerging Drugs
https://www.readbyqxmd.com/read/27785092/improvement-in-pain-severity-category-in-clinical-trials-of-pregabalin
#12
Bruce Parsons, Charles E Argoff, Andrew Clair, Birol Emir
BACKGROUND: Pregabalin is approved by the US Food and Drug Administration for the treatment of fibromyalgia (FM), diabetic peripheral neuropathy (DPN), postherpetic neuralgia (PHN), and neuropathic pain due to spinal cord injury (SCI). Approval was based on clinical trial data demonstrating statistically significant differences in pain scores versus placebo. However, statistically significant pain relief may not always equate to clinically meaningful pain relief. To further characterize the clinical benefit of pregabalin, this analysis examined shifts in pain severity categories in patients with FM, DPN/PHN (pooled in this analysis), and SCI treated with pregabalin...
2016: Journal of Pain Research
https://www.readbyqxmd.com/read/27764759/6-methoxyflavanone-attenuates-mechanical-allodynia-and-vulvodynia-in-the-streptozotocin-induced-diabetic-neuropathic-pain
#13
Shehla Akbar, Fazal Subhan, Nasiara Karim, Muhammad Shahid, Nisar Ahmad, Gowhar Ali, Wajahat Mahmood, Khwaja Fawad
BACKGROUND: Diabetic neuropathy is the most prevalent, persistent and debilitating complication of diabetes mellitus often coupled with vulvodynia that may present as an isolated symptom or as a part of constellation of other neuropathic abnormalities. OBJECTIVE: Flavonoids have selective affinity for GABA receptors and 6-methoxyflavanone (6-MeOF) is a positive allosteric modulator of GABA responses at human recombinant GABAA receptors. GABAergic and opioidergic system inhibition have been shown to facilitate neuropathic pain...
October 17, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27749604/sirt1-attenuates-neuropathic-pain-by-epigenetic-regulation-of-mglur1-5-expressions-in-type-2-diabetic-rats
#14
Cheng-Hua Zhou, Ming-Xing Zhang, Sha-Sha Zhou, Huan Li, Jian Gao, Lei Du, Xiao-Xing Yin
Accumulating evidence has demonstrated that epigenetic modification-mediated changes in pain-related gene expressions play an important role in the development and maintenance of neuropathic pain. Sirtuin 1 (SIRT1), anicotinamide adenosine dinucleotide (NAD)-dependent deacetylase, is involved in the development of chronic pain. Moreover, SIRT1 may be a novel therapeutic target for the prevention of type 2 diabetes mellitus (T2DM). But the role of SIRT1 in T2DM-induced neuropathic pain remains unknown. In this study, we found that spinal SIRT1 expression and activity were down-regulated significantly in high-fat-fed/low-dose STZ-induced neuropathic pain rats...
September 29, 2016: Pain
https://www.readbyqxmd.com/read/27717882/pain-modulation-from-the-brain-during-diabetic-neuropathy-uncovering-the-role-of-the-rostroventromedial-medulla
#15
Marta Silva, José Tiago Costa-Pereira, Daniel Martins, Isaura Tavares
Diabetic neuropathy has a profound impact in the quality of life of patients who frequently complain of pain. The mechanisms underlying diabetic neuropathic pain (DNP) are no longer ascribed only to damage of peripheral nerves. The effects of diabetes at the central nervous system are currently considered causes of DPN. Management of DNP may be achieved by antidepressants that act on serotonin (5-HT) uptake, namely specific serotonin reuptake inhibitors. The rostroventromedial medulla (RVM) is a key pain control center involved in descending pain modulation at the spinal cord through local release of 5-HT and plays a peculiar role in the balance of bidirectional control (i...
October 4, 2016: Neurobiology of Disease
https://www.readbyqxmd.com/read/27702429/conventional-deep-pressure-algometry-is-not-suitable-for-clinical-assessment-of-nociception-in-painless-diabetic-neuropathy
#16
Ernst A Chantelau
BACKGROUND: In diabetic persons with painless neuropathic foot ulceration, foot skin was found to be insensate to noxious pinprick stimulation (stimulation area less than 0.05 mm(2)), while compression of deep subcutaneous foot tissues by Algometer II(®) (stimulation area 1 cm(2)) could evoke a deep dull aching. To elucidate this discrepancy, the Algometer II stimulation technique was critically reviewed by varying probe sizes and anatomical sites in the same study population 3 years later...
2016: Diabetic Foot & Ankle
https://www.readbyqxmd.com/read/27672310/synthesis-solubility-plasma-stability-and-pharmacological-evaluation-of-novel-sulfonylhydrazones-designed-as-anti-diabetic-agents
#17
Gisele Zapata-Sudo, Isabelle Karine da Costa Nunes, Josenildo Segundo Chaves Araujo, Jaqueline Soares da Silva, Margarete Manhães Trachez, Tiago Fernandes da Silva, Filipe P da Costa, Roberto Takashi Sudo, Eliezer J Barreiro, Lídia Moreira Lima
Neuropathy is a serious complication of diabetes that has a significant socioeconomic impact, since it frequently demands high levels of health care consumption and compromises labor productivity. Recently, LASSBio-1471 (3) was demonstrated to improve oral glucose tolerance, reduce blood glucose levels, and display an anti-neuropathy effect in a murine streptozotocin-induced diabetes model. In the present work, we describe the design, synthesis, solubility, plasma stability, and pharmacological evaluation of novel sulfonylhydrazone derivatives (referred to herein as compounds 4-9), which were designed by molecular modification based on the structure of the prototype LASSBio-1471 (3)...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/27660061/small-fiber-neuropathy-in-children-two-case-reports-illustrating-the-importance-of-recognition
#18
Janneke G J Hoeijmakers, Catharina G Faber, Carien J Miedema, Ingemar S J Merkies, Johan S H Vles
Small fiber neuropathy (SFN) is a debilitating condition that often leads to pain and autonomic dysfunction. In the last few decades, SFN has been gaining more attention, particularly in adults. However, literature about SFN in children remains limited. The present article reports the cases of 2 adolescent girls diagnosed with SFN. The first patient (14 years of age) complained about painful itch and tingling in her legs, as well as dysautonomia symptoms for years. She also reported a red/purple-type discoloration of her legs aggravated by warmth and standing, compatible with erythromelalgia...
September 22, 2016: Pediatrics
https://www.readbyqxmd.com/read/27643771/case-234-neuropathic-spondyloarthropathy
#19
Ramez R Hanna, Nicholas Kolanko, Carlos Torres
History A 70-year-old woman presented to a peripheral hospital with signs and symptoms of acute chronic obstructive pulmonary disease (COPD) exacerbation. The patient also reported acute on chronic onset of thoracolumbar back pain over a period of 24 hours. She denied any history of recent trauma or intravenous drug use. She did not have any long-term indwelling catheters. The patient's medical history was also complicated by stage 4 renal failure from long-standing type II diabetes, hypertension, iron deficiency anemia, aortic stenosis, and prior bariatric surgery...
October 2016: Radiology
https://www.readbyqxmd.com/read/27634339/epoxy-fatty-acids-mediate-analgesia-in-murine-diabetic-neuropathy
#20
K Wagner, K S S Lee, J Yang, B D Hammock
BACKGROUND: Neuropathic pain is a debilitating condition with no adequate therapy. The health benefits of omega-3 fatty acids are established, however, the role of docosahexaenoic acid (DHA) in limiting pain has only recently been described and the mechanisms of this action remain unknown. DHA is metabolized into epoxydocosapentanoic acids (EDPs) via cytochrome P450 (CYP450) enzymes which are substrates for the soluble epoxide hydrolase (sEH) enzyme. Here, we tested several hypotheses; first, that the antinociceptive action of DHA is mediated by the EDPs...
September 15, 2016: European Journal of Pain: EJP
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