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Diabetic nerves

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https://www.readbyqxmd.com/read/28351070/does-resection-of-the-posterior-longitudinal-ligament-impact-the-incidence-of-c5-palsy-after-cervical-corpectomy-procedures-a-review-of-459-consecutive-cases
#1
Ahmad Nassr, Ilyas S Aleem, Jason C Eck, Barrett Woods, Ravi K Ponnappan, William F Donaldson, James D Kang
STUDY DESIGN: Retrospective review. OBJECTIVE: To evaluate key risk factors for the development of C5 palsy after cervical corpectomy, including resection of the posterior longitudinal ligament (PLL). SUMMARY OF BACKGROUND DATA: Postoperative C5 palsy is a well-known complication after cervical spine surgery. It is unknown whether resection of the PLL affects the incidence of C5 palsy. METHODS: We performed a retrospective review of 459 consecutive patients undergoing anterior cervical corpectomies over a 15-year period...
April 1, 2017: Spine
https://www.readbyqxmd.com/read/28351053/macular-edema-rationale-for-therapy
#2
Thomas J Wolfensberger
Macular edema represents the end-stage of multiple pathophysiological pathways in a multitude of ocular vascular, inflammatory, and other diseases. The rationale for clinical treatment of macular edema is based on the understanding and the inhibition of these pathophysiological mechanisms. When macular edema is caused by a generalized health problem such as diabetes, high blood pressure, or generalized inflammatory conditions, treatment of these generalized diseases can in many cases cure macular edema directly...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28346279/sub-basal-corneal-nerve-plexus-analysis-using-a-new-software-technology
#3
Hatim Batawi, Nabeel Shalabi, Madhura Joag, Tulay Koru-Sengul, Jorge Rodriguez, Parke T Green, Mauro Campigotto, Carol L Karp, Anat Galor
PURPOSE: To study sub-basal corneal nerve plexus (SCNP) parameters by in vivo corneal confocal microscopy using a new software technology and examine the effect of demographics and diabetes mellitus (DM) on corneal nerves morphology. METHODS: A Confoscan 4 (Nidek Technologies) was used in this cross-sectional study to image the SCNP in 84 right eyes at the Miami Veterans Affairs eye clinic. Images were analyzed using a new semiautomated nerve analysis software program (The Corneal Nerve Analysis tool) which evaluated 9 parameters including nerve fibers length (NFL) and nerve fibers length density (NFLD)...
March 24, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28339297/long-term-effect-of-panretinal-photocoagulation-on-spectral-domain-optical-coherence-tomography-measurements-in-diabetic-retinopathy
#4
Haeng-Jin Lee, Tae-Seen Kang, Baek-Soo Kwak, Young-Joon Jo, Jung-Yeul Kim
PURPOSE: To evaluate the effects of panretinal photocoagulation on spectral domain optical coherence tomography measurements in diabetic retinopathy by comparing the thicknesses of the central macula, retinal nerve fiber layer, and ganglion cell layer, we used a Cirrus HD OCT® (Carl Zeiss Meditec, Dublin, CA, USA) in normal and diabetic retinopathy cohorts. METHODS: We analyzed patients who visited our retinal clinic between May 2013 and July 2014. The patients were classified into four groups: normal (Group A), diabetes without diabetic retinopathy (Group B), severe nonproliferative or proliferative diabetic retinopathy (Group C), and at least 3 years after panretinal photocoagulation treatment (Group D)...
March 24, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28338308/penile-alterations-at-early-stage-of-type-1-diabetes-in-rats
#5
Mingfang Tao, Cemal Tasdemir, Seda Tasdemir, Ali Shahabi, Guiming Liu
OBJECTIVE: Diabetes affects the erectile function significantly. However, the penile alterations in the early stage of diabetes in experimental animal models have not been well studied. We examined the changes of the penis and its main erectile components in diabetic rats. MATERIALS AND METHODS: Male Sprague-Dawley rats were divided into 2 groups: streptozotocin (STZ)-induced diabetics and age-matched controls. Three or nine weeks after diabetes induction, the penis was removed for immunohistochemical staining of smooth muscle and neuronal nitric oxide synthase (nNOS) in midshaft penile tissues...
March 24, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28334605/new-horizons-in-diabetic-neuropathy-mechanisms-bioenergetics-and-pain
#6
REVIEW
Eva L Feldman, Klaus-Armin Nave, Troels S Jensen, David L H Bennett
Pre-diabetes and diabetes are a global epidemic, and the associated neuropathic complications create a substantial burden on both the afflicted patients and society as a whole. Given the enormity of the problem and the lack of effective therapies, there is a pressing need to understand the mechanisms underlying diabetic neuropathy (DN). In this review, we present the structural components of the peripheral nervous system that underlie its susceptibility to metabolic insults and then discuss the pathways that contribute to peripheral nerve injury in DN...
March 22, 2017: Neuron
https://www.readbyqxmd.com/read/28334035/early-inner-retinal-thinning-and-cardiovascular-autonomic-dysfunction-in-type-2-diabetes
#7
Jin A Choi, Hyo Won Kim, Jin-Woo Kwon, Yun-Sub Shim, Dong Hyun Jee, Jae-Seung Yun, Yu-Bae Ahn, Chan Kee Park, Seung-Hyun Ko
BACKGROUND: To investigate changes in the neural retina according to the presence of retinal nerve fiber layer (RNFL) defects in type 2 diabetes, and to determine the association between inner retina thickness and the severity of diabetic complications. METHODS: We studied non-glaucomatous patients with type 2 diabetes and control subjects Circumpapillary RNFL and macula ganglion cell-inner plexiform layer (GCIPL) thicknesses were measured by spectral-domain optical coherence tomography...
2017: PloS One
https://www.readbyqxmd.com/read/28332470/adult-onset-demyelinating-neuropathy-associated-with-fbln5-gene-mutation
#8
Si Cheng, He Lv, Wei Zhang, Zhaoxia Wang, Xin Shi, Wei Liang, Yun Yuan
Rare forms of autosomal-dominant Charcot-Marie-Tooth disease (AD-CMT) may be associated with mutations in Fibulin-5 (FBLN5) as AD-CMT is genetically heterogeneous. Here, we report the first pathological study of an Asian family. The proband was a 46-year-old man with slowly progressive distal numbness and weakness for 12 years. He had a history of diabetes mellitus for 12 years. His mother was 81 years old and had mild polyneuropathy. His 16-year-old daughter was asymptomatic. The nerve conduction velocities (NCVs) and compound muscular action potential (CMAP) amplitudes were moderately to severely reduced in the proband, and moderately reduced in his daughter and mother...
March 23, 2017: Clinical Neuropathology
https://www.readbyqxmd.com/read/28332276/dual-ccr2-ccr5-antagonist-treatment-attenuates-adipose-inflammation-but-not-microvascular-complications-in-ob-ob-mice
#9
Phillipe D O'Brien, Lucy M Hinder, Sebastian D Parlee, John M Hayes, Carey Backus, Hongyu Zhang, Lijun Ma, Stacey A Sakowski, Frank C Brosius, Eva L Feldman
Diabetic peripheral neuropathy (DPN) and diabetic kidney disease (DKD) are common diabetic complications with limited treatment options. Experimental studies show that targeting inflammation using chemokine receptor (CCR) antagonists ameliorates DKD, presumably by reducing macrophage accumulation or activation. As inflammation is implicated in DPN development, we assessed whether CCR2 and CCR5 antagonism could also benefit DPN. Five-week-old ob/ob mice were fed a diet containing MK-0812, a dual CCR2-CCR5 receptor antagonist, for 8 weeks and DPN, DKD, and metabolic phenotyping were then performed to determine the effect of CCR inhibition...
March 23, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28328632/use-of-processed-nerve-allografts-to-repair-nerve-injuries-greater-than-25-mm-in-the-hand
#10
Brian Rinker, Jozef Zoldos, Renata V Weber, Jason Ko, Wesley Thayer, Jeffrey Greenberg, Fraser J Leversedge, Bauback Safa, Gregory Buncke
Processed nerve allografts (PNAs) have been demonstrated to have improved clinical results compared with hollow conduits for reconstruction of digital nerve gaps less than 25 mm; however, the use of PNAs for longer gaps warrants further clinical investigation. Long nerve gaps have been traditionally hard to study because of low incidence. The advent of the RANGER registry, a large, institutional review board-approved, active database for PNA (Avance Nerve Graft; AxoGen, Inc, Alachua, FL) has allowed evaluation of lower incidence subsets...
March 21, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28322157/diabetes-related-neurological-implications-and-pharmacogenomics
#11
Rojas Carranza Camilo Andrés, Bustos Cruz Rosa Helena, Pino Pinzón Carmen Juliana, Ariza Marquez Yeimy Viviana, Gómez Bello Rosa Margarita, Cañadas Garre Marisa
Diabetes mellitus (DM) is the most commonly occurring cause of neuropathy around the world and is beginning to grow in countries where there is a risk of obesity. DM Type II, (T2DM) is a common age-related disease and is a major health concern, particularly in developed countries in Europe where the population is aging. T2DM is a chronic disease which is characterised by hyperglycemia, hyperinsulinemia and insulin resistance, together with the body's inability to use glucose as energy. Such metabolic disorder produces a chronic inflammatory state, as well as changes in lipid metabolism leading to hypertriglyceridemia, thereby producing chronic deterioration of the organs and premature morbidity and mortality...
March 17, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28319106/a-systematic-review-on-the-impact-of-diabetes-mellitus-on-the-ocular-surface
#12
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/28315720/the-protective-effect-of-the-active-components-of-erpc-on-diabetic-peripheral-neuropathy-in-rats
#13
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/28315443/progesterone-modulates-diabetes-hyperglycemia-induced-changes-in-the-central-nervous-system-and-sciatic-nerve
#14
Fahim Atif, Megan C Prunty, Nefize Turan, Donald G Stein, Seema Yousuf
We investigated the effect of progesterone (P4) treatment on diabetes/hyperglycemia-induced pathological changes in brain, spinal cord and sciatic nerve tissue in male rats. Animals were rendered hyperglycemic by a single dose of streptozotocin (STZ). P4 treatment was started after hyperglycemia was confirmed and body weight and blood glucose levels were monitored once/week for 5 weeks. Rats underwent behavioral testing at week 5 and were then euthanized for histology. We assessed the expression of markers of angiogenesis (vascular endothelial growth factor (VEGF)), inflammation (interleukin-6 (IL-6)) and tissue injury (CD11b, NG2, COX2 and matrix metalloproteinase-2 (MMP-2)) in the brain, spinal cord and sciatic nerve...
March 14, 2017: Neuroscience
https://www.readbyqxmd.com/read/28315277/the-role-of-sigma1r-in-mammalian-retina
#15
Jing Wang, Xuezhi Cui, Penny Roon, Alan Saul, Sylvia B Smith
This review article focuses on studies of Sigma 1 Receptor (Sigma1R) and retina . It provides a brief overview of the earliest pharmacological studies performed in the late 1990s that provided evidence of the presence of Sigma1R in various ocular tissues. It then describes work from a number of labs concerning the location of Sigma1R in several retinal cell types including ganglion, Müller glia , and photoreceptors . The role of Sigma1R ligands in retinal neuroprotection is emphasized. Early studies performed in vitro clearly showed that targeting Sigma1R could attenuate stress-induced retinal cell loss...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28299616/promise-of-sglt2-inhibitors-in-heart-failure-diabetes-and-beyond
#16
REVIEW
Pieter Martens, Chantal Mathieu, Frederik H Verbrugge
This review provides mechanistic insight in the pleiotropic effects of sodium-glucose transporter-2 (SGLT-2) inhibitors with particular interest to the pathophysiology of heart failure. The SGLT-2 inhibitor empagliflozin has recently demonstrated an unprecedented 38% reduction in cardiovascular mortality in patients with diabetes. Despite modest effects on long-term glycemic control, highly significant reductions in heart failure admissions and end-stage kidney disease were observed. SGLT-2 inhibitors are the latest approved class of glucose-lowering agents...
March 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28299450/the-prevalence-of-post-thyroidectomy-chronic-asthenia-a-prospective-cohort-study
#17
Gregorio Scerrino, Giuseppina Melfa, Cristina Raspanti, Andrea Attard, Sergio Mazzola, Roberto Gullo, Sebastiano Bonventre, Marco Attard, Gianfranco Cocorullo, Gaspare Gulotta
PURPOSE: Chronic asthenia (CA) is complained by some patients that have undergone thyroid surgery. We evaluate its impact in patients undergoing unilateral or bilateral thyroidectomy, the trend during a 1-year follow-up, and the possible risk factors. METHODS: A prospective, cohort study was carried out on 263 patients scheduled for thyroidectomy from 2012 and 2014. Exclusion criteria were as follows: Graves' disease, malignancies requiring radioiodine therapy, post-surgical hypoparathyroidism, laryngeal nerve palsy, abnormal pre- and post-operative thyroid hormone levels, and BMI outside the normal range...
March 15, 2017: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/28299330/erythropoietin-modification-enhances-the-protection-of-mesenchymal-stem-cells-on-diabetic-rat-derived-schwann-cells-implications-for-diabetic-neuropathy
#18
Shuyun Zhang, Baolin Shi
Diabetes-triggered apoptosis of Schwann cells (SC) contributes to the degradation of diabetic peripheral neuropathy (DNP). In recent years, mesenchymal stem cells (MSC) were applied to DPN repair and it was demonstrated that paracrine secretion played a key role in neuroprotection exerted by MSC. Erythropoietin (EPO) is a potent cytokine capable of reducing apoptosis of SC. However, the expression of EPO in MSC is limited. In this study, we hypothesized that overexpression of EPO in MSC (EPO-MSC) may significantly improve their neuroprotective potentials...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28296936/spatial-analysis-improves-the-detection-of-early-corneal-nerve-fiber-loss-in-patients-with-recently-diagnosed-type-2-diabetes
#19
Dan Ziegler, Karsten Winter, Alexander Strom, Andrey Zhivov, Stephan Allgeier, Nikolaos Papanas, Iris Ziegler, Jutta Brüggemann, Bernd Ringel, Sabine Peschel, Bernd Köhler, Oliver Stachs, Rudolf F Guthoff, Michael Roden
Corneal confocal microscopy (CCM) has revealed reduced corneal nerve fiber (CNF) length and density (CNFL, CNFD) in patients with diabetes, but the spatial pattern of CNF loss has not been studied. We aimed to determine whether spatial analysis of the distribution of corneal nerve branching points (CNBPs) may contribute to improving the detection of early CNF loss. We hypothesized that early CNF decline follows a clustered rather than random distribution pattern of CNBPs. CCM, nerve conduction studies (NCS), and quantitative sensory testing (QST) were performed in a cross-sectional study including 86 patients recently diagnosed with type 2 diabetes and 47 control subjects...
2017: PloS One
https://www.readbyqxmd.com/read/28293196/muscle-sympathetic-nerve-activity-is-associated-with-liver-insulin-sensitivity-in-obese-non-diabetic-men
#20
Daniel L T Chen, Rachael Brown, Carsten Liess, Anne Poljak, Aimin Xu, Jialiang Zhang, Michael Trenell, Arthur Jenkins, Donald Chisholm, Dorit Samocha-Bonet, Vaughan G Macefield, Jerry R Greenfield
Introduction: Muscle sympathetic nerve activity (MSNA) may play a role in insulin resistance in obesity. However, the direction and nature of the relationship between MSNA and insulin resistance in obesity remain unclear. We hypothesized that resting MSNA would correlate inversely with both muscle and liver insulin sensitivity and that it would be higher in insulin-resistant vs. insulin-sensitive subjects. Materials and methods: Forty-five non-diabetic obese subjects were studied. As no significant relationships were found in women, the data presented in on 22 men aged 48 ± 12 years...
2017: Frontiers in Physiology
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