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https://www.readbyqxmd.com/read/29775216/neuroimmflammation-and-microglia-in-glaucoma-time-for-a-paradigm-shift
#1
REVIEW
Xin Wei, Kin-Sang Cho, Eric F Thee, Martine J Jager, Dong Feng Chen
Glaucoma is a complex neurodegenerative disease with many clinical subtypes. Some of its rare forms include pigmentary glaucoma, uveitic glaucoma and congenital glaucoma. While they all share common features of progressive retinal ganglion cell (RGC) loss, optic nerve damage and corresponding visual field loss, the exact mechanisms underlying glaucomatous neuron loss are not clear. This has largely hindered the development of a real cure for this disease. Elevated intraocular pressure (IOP) is a known major risk factor of glaucoma; however, progressive degeneration of RGCs and axons can also be found in patients with a normal IOP, i...
May 18, 2018: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/29772927/design-and-simulation-of-novel-laparoscopic-renal-denervation-system-a-feasibility-study
#2
Eunbi Ye, Jinhwan Baik, Seunghyun Lee, Seon Young Ryu, Sunchoel Yang, Eue-Keun Choi, Won Hoon Song, Hyeong Dong Yuk, Chang Wook Jeong, Sung-Min Park
PURPOSE: In this study, we propose a novel laparoscopy-based renal denervation (RDN) system for treating patients with resistant hypertension. In this feasibility study, we investigated whether our proposed surgical instrument can ablate renal nerves from outside of the renal artery safely and effectively and can overcome the depth-related limitations of the previous catheter-based system with less damage to the arterial walls. METHOD: We designed a looped bipolar electrosurgical instrument to be used with laparoscopy-based RDN system...
May 18, 2018: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/29772575/therapeutic-effect-of-cd4-cd25-regulatory-t-cells-amplified-in-vitro-on-experimental-autoimmune-neuritis-in-rats
#3
Feng-Jie Wang, Dan Cui, Wei-Dong Qian
BACKGROUND/AIMS: This study aimed to explore whether the adoptive transfusion of autologous CD4+CD25+ regulatory T cells (CD4+CD25+ Tregs) has a therapeutic effect on Experimental autoimmune neuritis (EAN) model rats, and it provides new experimental and theoretical bases for the immunotherapy of Guillain-Barre syndrome (GBS). METHODS: CD4+CD25+ Tregs were sorted from the spleens of rats using immunomagnetic bead separation techniques combined with flow cytometry...
May 14, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29771733/haemodilution-and-head-down-tilting-induce-functional-injury-in-the-rat-optic-nerve-a-model-for-peri-operative-ischemic-optic-neuropathy
#4
Steven Roth, John Dreixler, Nancy J Newman
BACKGROUND: Mechanisms of peri-operative ischaemic optic neuropathy remain poorly understood. Both specific pre-operative and intra-operative factors have been examined by retrospective studies, but no animal model currently exists. OBJECTIVES: To develop a rodent model of peri-operative ischaemic optic neuropathy. In rats, we performed head-down tilt and/or haemodilution, theorising that the combination damages the optic nerve. DESIGN: Animal study...
May 15, 2018: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/29771436/correlations-of-neuronal-apoptosis-with-expressions-of-c-fos-and-c-jun-in-rats-with-post-ischemic-reconditioning-damage
#5
P Xiao, X-W Liu, N-N Zhao, R Fang, Q Wen, K-X Zeng, Y-L Wang
OBJECTIVE: Transcription factors (c-Fos and c-Jun) have been considered to play roles in the initiation of programmed nerve cell death. However, the roles of c-Fos and c-Jun protein expressions in neuronal apoptosis of rats with post-ischemic reconditioning damage were not clarified. Therefore, the aim of this study was to investigate the correlations of protein expressions of c-Fos and c-Jun with neuronal apoptosis of rats with post-ischemic reconditioning damage. MATERIALS AND METHODS: Rat models of post-ischemic reconditioning were established firstly...
May 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29771089/-an-analysis-of-electrocochleography-in-patients-with-osahs
#6
W T Sun, Y Chen, H H Lu, H Y Ruan, R M Liang, C Chen, J P Zhang
Objective: To investigate the values of electrocochleograph(ECochG)in patients with OSAHS. Method: ECochG was performed in 31 (62 ears) OSAHS patients (moderately 5 cases, severely 26 cases) and 28 healthy adults (56 ears). AP latency ,AP amplitude and SP/AP were measured and analyzed. Result: There was no difference between the two groups in SP/AP amplitude ratio( P >0.05) while both AP latency( P <0.05) and AP amplitude( P <0.05) were significantly different. Conclusion: ECochG can confirm the damage of cochlear and auditory nerve near the cochlear segment in patients with moderate to severe OSAHS...
May 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29765790/direct-posterior-bipolar-cervical-facet-radiofrequency-rhizotomy-a-simpler-and-safer-approach-to-denervate-the-facet-capsule
#7
Ovidiu Palea, Haroon M Andar, Ramon Lugo, Michelle Granville, Robert E Jacobson
Radiofrequency cervical rhizotomy has been shown to be effective for the relief of chronic neck pain, whether it be due to soft tissue injury, cervical spondylosis, or post-cervical spine surgery. The target and technique have traditionally been taught using an oblique approach to the anterior lateral capsule of the cervical facet joint. The goal is to position the electrode at the proximal location of the recurrent branch after it leaves the exiting nerve root and loops back to the cervical facet joint. The standard oblique approach to the recurrent nerve requires the testing of both motor and sensory components to verify the correct position and ensure safety so as to not damage the slightly more anterior nerve root...
March 14, 2018: Curēus
https://www.readbyqxmd.com/read/29765439/radiographic-features-of-anatomic-relationship-between-impacted-third-molar-and-inferior-alveolar-canal-on-coronal-cbct-images-risk-factors-for-nerve-injury-after-tooth-extraction
#8
Dongmiao Wang, Tangyi Lin, Yanling Wang, Chao Sun, Lianfeng Yang, Hongbing Jiang, Jie Cheng
Introduction: The present study was aimed to identify the radiographic signs between impacted third molar root and inferior alveolar canal (IAC) on cone-beam CT (CBCT) images as risk factors and prognostic predictors associated with inferior alveolar nerve (IAN) damage following tooth removal. Material and methods: A retrospective clinical study was performed involving 136 patients with 257 impacted lower third molars from January 2013 to December 2014. The neurosensory function of the lower lip and chin was subjectively evaluated and assessed by neurosensory tests before and after surgery...
April 2018: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/29764819/penetrating-trauma-causing-cerebrospinal-fluid-leak-without-nerve-root-damage
#9
Holly Carpenter, Katherine-Helen Hurndall, Ajay K Asokan, Roland Fernandes
A 19-year-old man with a stab injury to the lower back presented with no focal neurology or haemodynamic instability. He complained of a headache that was improved by lying flat and underwent imaging to look for damage to local structures. He was found to have air in his intraspinal space. Initially this case was managed conservatively; however, 2 weeks after discharge, he presented with cerebrospinal fluid leak from his wound. This was managed with neurosurgical intervention and watertight closure of fascia...
May 14, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29764455/nerve-trauma-of-the-lower-extremity-evaluation-of-60-422-leg-injured-patients-from-the-traumaregister-dgu%C3%A2-between-2002-and-2015
#10
Torge Huckhagel, Jakob Nüchtern, Jan Regelsberger, Mathias Gelderblom, Rolf Lefering
BACKGROUND: Nerve lesions are well known reasons for reduced functional capacity and diminished quality of life. By now only a few epidemiological studies focus on lower extremity trauma related nerve injuries. This study reveals frequency and characteristics of nerve damages in patients with leg trauma in the European context. METHODS: Sixty thousand four hundred twenty-two significant limb trauma cases were derived from the TraumaRegister DGU® between 2002 and 2015...
May 15, 2018: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/29763577/comparison-of-the-regenerative-effects-of-platelet-rich-fibrin-and-plasma-rich-in-growth-factors-on-injured-peripheral-nerve-an-experimental-study
#11
Damla Torul, Mehmet Cihan Bereket, Mehmet Emin Onger, Gamze Altun
PURPOSE: The aim of this study was to investigate the effects of platelet-rich fibrin (PRF) and plasma rich in growth factors (PRGF) on peripheral nerve injury in the early period of healing. MATERIAL AND METHODS: Thirty Wistar albino rats were used in this study. Rats were divided into control (C), damaged (D), PRF, and PRGF groups. The left sciatic nerves of each group were identified as group C. Crush-type injury was performed on the right sciatic nerves of the D, PRF, and PRGF groups...
April 20, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29762181/intraneural-ultrasound-guided-sciatic-nerve-block-minimum-effective-volume-and-electrophysiologic-effects
#12
Gianluca Cappelleri, Andrea Luigi Ambrosoli, Marco Gemma, Valeria Libera Eva Cedrati, Federico Bizzarri, Giorgio Francesco Danelli
BACKGROUND: Both extra- and intraneural sciatic injection resulted in significant axonal nerve damage. This study aimed to establish the minimum effective volume of intraneural ropivacaine 1% for complete sensory-motor sciatic nerve block in 90% of patients, and related electrophysiologic variations. METHODS: Forty-seven consecutive American Society of Anesthesiologists physical status I-II patients received an ultrasound-guided popliteal intraneural nerve block following the up-and-down biased coin design...
May 15, 2018: Anesthesiology
https://www.readbyqxmd.com/read/29761349/intracochlear-administration-of-steroids-with-a-catheter-during-human-cochlear-implantation-a-safety-and-feasibility-study
#13
Nils K Prenzler, Rolf Salcher, Max Timm, Lutz Gaertner, Thomas Lenarz, Athanasia Warnecke
Suppression of foreign body reaction, improvement of electrode-nerve interaction, and preservation of residual hearing are essential research topics in cochlear implantation. Intracochlear pharmaco- or cell-based therapies can open new horizons in this field. Local drug delivery strategies are desirable as higher local concentrations of agents can be realized and side effects can be minimized compared to systemic administrations. When administered locally at accessible, basal parts of the cochlea, drugs reach apical regions later and in much lower concentrations due to poor diffusion patterns in cochlear fluids...
May 14, 2018: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/29759043/electrochemotherapy-of-spinal-metastases-using-transpedicular-approach-a-numerical-feasibility-study
#14
Helena Cindrič, Bor Kos, Giuseppe Tedesco, Matteo Cadossi, Alessandro Gasbarrini, Damijan Miklavčič
Vertebral column is the most frequent site for bone metastases. It has been demonstrated in previous studies that bone metastases can be efficiently treated by electrochemotherapy. We developed a novel approach to treat spinal metastases, that is, transpedicular approach that combines electrochemotherapy with already established technologies for insertion of fixation screws in spinal surgery. In the transpedicular approach, needle electrodes are inserted into the vertebral body through pedicles and placed around the tumor...
January 1, 2018: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/29756589/effect-of-combination-therapy-with-neuroprotective-and-vasoprotective-agents-on-cerebral-ischemia
#15
Jiping Yang, Bei Yang, Baoxin Xiu, Jinchong Qi, Huaijun Liu
Because most tested drugs are active against only one of the damaging processes associated with stroke, other mechanisms may cause cellular death. Thus, a combination of protective agents targeting different pathophysiological mechanisms may obtain better effects than a single agent. The major objective of this study was to investigate the effect of combination therapy with vascular endothelial growth factor (VEGF) and nerve growth factor (NGF) after controlled ischemic brain injury in rabbits. METHODS: Animals were randomly assigned to one of the following groups: sham group, saline-treated control group or NGF+VEGF-treated group...
May 2018: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/29755905/a-case-of-neurotrophic-keratopathy-concomitant-to-brain-metastasis
#16
Chiara Bonzano, Elisabetta Bonzano, Carlo Alberto Cutolo, Riccardo Scotto, Carlo Enrico Traverso
We report a case of a 63-year-old Caucasian female referred to the cornea service of Clinica Oculistica with a neurotrophic corneal ulcer, decreased corneal sensitivity, absent corneal reflex, and decreased lacrimation. The medical record review was relevant for mastectomy and adjuvant therapy for breast cancer complicated by pontocerebellar angle metastasis. Eye patching and application of antibiotic and vitamin ointments were prescribed at first, without a significant improvement. Thus, treatment with autologous serum was started...
March 12, 2018: Curēus
https://www.readbyqxmd.com/read/29752406/the-prostaglandin-e-2-receptor-ep3-controls-cc-chemokine-ligand-mediated-neuropathic-pain-induced-by-mechanical-nerve-damage
#17
Elsa-Marie Treutlein, Katharina Kern, Andreas Weigert, Neda Tarighi, Claus-Dieter Schuh, Rolf M Nüsing, Yannick Schreiber, Nerea Ferreirós, Bernhard Brüne, Gerd Geisslinger, Sandra Pierre, Klaus Scholich
Prostaglandin (PG) E2 is an important lipid mediator that is involved in several pathophysiological processes contributing to fever, inflammation and pain. Previous studies have shown that early and continuous application of non-steroidal anti-inflammatory drugs significantly reduces pain behavior in the spared nerve injury (SNI) model for trauma-induced neuropathic pain. However, the role of PGE2 and its receptors in the development and maintenance of neuropathic pain is incompletely understood, but may help inform strategies for pain management...
May 11, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29750992/transcriptome-analysis-of-dorsal-root-ganglia-s-diabetic-neuropathy-reveals-mechanisms-involved-in-pain-and-regeneration
#18
Maria Carolina Pedro Athie, Andre Schwambach Vieira, Juliana Maia Teixeira, Gilson Gonçalves Dos Santos, Elayne Vieira Dias, Claudia Herrera Tambeli, Cesar Renato Sartori, Carlos A Parada
Peripheral diabetic neuropathy (DN) manifests in nearly 60% of diabetic patients, being pain its most debilitating symptom. Although electrophysiological and morphological aspects are well described, little is known about its development and progression, undermining effective therapies. Hyperglycemia and insulin signaling impairment are considered the triggering events of oxidative stress observed in the dying nerves, however there are still many gaps in the knowledge of intracellular plastic changes it generates...
May 8, 2018: Life Sciences
https://www.readbyqxmd.com/read/29750948/altered-macular-microvasculature-in-neuromyelitis-optica-spectrum-disorders
#19
William Robert Kwapong, Chenlei Peng, Zhiyong He, Xiran Zhuang, Meixiao Shen, Fan Lu
PURPOSE: To evaluate macular microvascular changes in neuromyelitis optica spectrum disorders (NMOSD) by using optical coherence tomography angiography (OCT-A) and investigate their correlations with neuroaxonal structural damage evaluated with Spectral domain OCT (SD-OCT). DESIGN: Cross-sectional study. METHODS: Twenty eyes of 20 patients with NMOSD and 21 eyes from 21 healthy controls were enrolled. OCT-A was used to obtain microvascular network images of the whole, superficial, and deep retinal capillary plexuses (WRCP, SRCP, and DRCP) in a 3-mm diameter area around the macula...
May 8, 2018: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29750715/visual-field-tests-for-glaucoma-patients-with-initial-macular-damage-comparison-between-frequency-doubling-technology-and-standard-automated-perimetry-using-24-2-or-10-2-visual-fields
#20
Hae-Young Lopilly Park, Jiyoung Lee, Chan Kee Park
PURPOSE: To compare standard automated perimetry (SAP) and frequency-doubling technology (FDT) perimetry for detecting macular damage in glaucoma. METHODS: One-hundred-twelve glaucomatous eyes with localized retinal nerve fiber layer (RNFL) defects on red-free photographs and corresponding macular ganglion cell/inner plexiform layer (mGC/IPL) thinning on the deviation map of macular optical coherence tomography (OCT), and thirty-five healthy eyes were enrolled in the study...
May 10, 2018: Journal of Glaucoma
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