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Disk Degeneration

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https://www.readbyqxmd.com/read/29772868/-significance-of-cell-autophagy-in-resorption-of-lumbar-disc-herniation
#1
REVIEW
Zhi-Jun Diao, Hong Jiang, Jin-Tao Liu
As a self-protective mechanism of cells, autophagy of cells can maintain cell stability by degrading self-aging substances, and it can be highly induced. The ability of autophagy to degraded cells will decrease with age. The resorption phenomenon after lumbar disc herniation is one of the effective mechanisms in conservative treatment of lumbar disc herniation. The degenerative lesion of intervertebral disc is one of the main reasons of lumbar disc herniation. Cell autophagy is extensive participation in the degeneration of lumbar intervertebral disc, delaying the occurrence of degenerative disease...
April 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29761933/th1-th17-th22-immune-response-and-their-association-with-joint-pain-imagenological-bone-loss-rankl-expression-and-osteoclast-activity-in-temporomandibular-joint-osteoarthritis-a-preliminary-report
#2
Gustavo Monasterio, Francisca Castillo, Leticia Rojas, Emilio A Cafferata, Carla Alvarez, Paola Carvajal, Cristián Núñez, Guillermo Flores, Walter Díaz, Rolando Vernal
It is well accepted that the presence of cytokines belonging to the Th1/Th17/Th22 axis of immuno-inflammatory response in the joint environment, such as IL-1β, IL-17, and IL-22, respectively, are associated with pathogenesis of several synovial joint degenerative disorders. During temporomandibular joint osteoarthritis (TMJ-OA), IL-1β and IL-17 have been implicated in the inflammation and resorption of sub-chondral bone; however, the role of Th22-response in the TMJ-OA pathophysiology has not been established...
May 15, 2018: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/29721037/automated-segmentation-methods-of-drusen-to-diagnose-age-related-macular-degeneration-screening-in-retinal-images
#3
Young Jae Kim, Kwang Gi Kim
Existing drusen measurement is difficult to use in clinic because it requires a lot of time and effort for visual inspection. In order to resolve this problem, we propose an automatic drusen detection method to help clinical diagnosis of age-related macular degeneration. First, we changed the fundus image to a green channel and extracted the ROI of the macular area based on the optic disk. Next, we detected the candidate group using the difference image of the median filter within the ROI. We also segmented vessels and removed them from the image...
2018: Computational and Mathematical Methods in Medicine
https://www.readbyqxmd.com/read/29707090/recurrence-is-associated-with-body-mass-index-in-patients-undergoing-a-single-level-lumbar-disc-herniation-surgery
#4
George Fotakopoulos, Demosthenes Makris, Polikceni Kotlia, Christos Tzerefos, Kostas Fountas
Background: The aim of the study was to assess the body mass index (BMI) and other risk factors associated with lumbar disc herniation (LDH) and clinical outcomes, in patients who undergo surgery for single-level LDH. Methods: This was a retrospective cohort study, affecting patients that underwent surgery for single-level LDH attending our hospital between July 2009 and January 2016. The mean follow-up period was 3.5 years (1 - 8 years). To maintain adequately sized groups for analysis, level L2-L3 and L3-L4 herniations were grouped as upper disc levels (group A) and level L4-L5 (group B) and L5-S1 (group C) herniations were analyzed individually...
June 2018: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/29702308/unilateral-veral-pedicle-screw-fixation-combined-with-transforaminal-lumbar-interbody-fusion-rsus-bilatefor-the-treatment-of-low-lumbar-degenerative-disc-diseases-analysis-of-clinical-and-radiographic-results
#5
De-Jian Chen, Cong Yao, Quanwei Song, Benyu Tang, Xuqiang Liu, Bin Zhang, Min Dai, Tao Nie, Zongmiao Wan
OBJECTIVE: Our objective was to compare the clinical and radiographic results of unilateral pedicle screw fixation (UPSF) and bilateral pedicle screw fixation (BPSF) after unilateral transforaminal lumbar interbody fusion (TLIF) for the treatment of lumbar degenerative disc diseases (DDD). MATERIALS AND METHODS: 63 patients who underwent UPSF or BPSF combined with unilateral TLIF at L4-L5 or L5-S1 were included in our hospital from 2014-2016. The perioperative outcomes and radiographic results were recorded at preoperative and postoperative follow-up...
April 24, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29629793/3d-ultrashort-te-mri-for-evaluation-of-cartilaginous-endplate-of-cervical-disk-in-vivo-feasibility-and-correlation-with-disk-degeneration-in-t2-weighted-spin-echo-sequence
#6
Yeo Ju Kim, Jang Gyu Cha, Yoon Sang Shin, Akshay S Chaudhari, Young Ju Suh, Seung Hwan Yoon, Garry E Gold
OBJECTIVE: The purpose of this study was to evaluate the feasibility of 3D ultrashort TE (UTE) MRI in depicting the cartilaginous endplate (CEP) and its abnormalities and to investigate the association between CEP abnormalities and disk degeneration on T2-weighted spin-echo (SE) MR images in cervical disks in vivo. SUBJECTS AND METHODS: Eight healthy volunteers and 70 patients were examined using 3-T MRI with the 3D UTE cones trajectory technique (TR/TE, 16.1/0...
April 9, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29628809/cytokine-involvement-in-biological-inflammation-related-to-degenerative-disorders-of-the-intervertebral-disk-a-narrative-review
#7
REVIEW
Christopher M De Geer
Objective: The purpose of this narrative literature review is to discuss the literature regarding the potential role that cytokines play in degenerative disk disease. Methods: The inclusion criteria were studies that used inflammatory mediators in advancing disk disease processes. Research studies were limited to the last 3 decades that had free full-text available online in English. Exclusion criteria were review articles and articles pertaining to temporomandibular joints and other joints of the body other than the intervertebral disk...
March 2018: Journal of Chiropractic Medicine
https://www.readbyqxmd.com/read/29578876/surgical-strategies-to-prevent-adjacent-segment-disease-in-the-cervical-spine
#8
Joseph S Butler, Patrick B Morrissey, Scott C Wagner, I David Kaye, Arjun S Sebastian, Gregory D Schroeder, Alexander R Vaccaro, Alan S Hilibrand
The most popular approach to treating symptomatic cervical disk disease is anterior cervical discectomy and fusion. Although this procedure has significant long-term clinical success, it is associated with progressive adjacent segment degeneration with an annual incidence of ∼3%. Total disk arthroplasty was designed as an alternative to fusion that could preserve segmental motion at the operative level and potentially delay or prevent adjacent-level breakdown. The etiology of adjacent segment pathology (ASP) is multifactorial, and it is likely that most cases of ASP are unavoidable...
March 23, 2018: Clinical Spine Surgery
https://www.readbyqxmd.com/read/29551909/a-cross-sectional-study-serum-ccl3-mip-1%C3%AE-levels-may-reflect-lumbar-intervertebral-disk-degeneration-in-han-chinese-people
#9
Yi-Li Zhang, Bei Li, Zeng-Huan Zhou
Background: The macrophage inflammatory protein-1α (MIP-1α), also named chemokine cytokine ligand 3 (CCL3), has been detected in nucleus pulposus and increased following cytokine stimulation. Objective: The current study was performed to explore the relationship between serum CCL3/MIP-1α levels with lumbar intervertebral disk degeneration (IDD). Patients and methods: A total of 132 disk degeneration patients confirmed by magnetic resonance imaging and 126 healthy controls were enrolled in the current study...
2018: Journal of Pain Research
https://www.readbyqxmd.com/read/29507918/ultrastructural-analysis-and-long-term-evaluation-of-composite-zirconia-bond-strength
#10
Moustafa N Aboushelib, Hala Ragab, Mohamed Arnaot
PURPOSE: To evaluate the influence of different aging techniques on zirconia-composite microtensile bond strength using different surface treatments over a 5-year follow-up period. MATERIALS AND METHODS: Zirconia disks received three surface treatments: airborne-particle abrasion with 50-μm aluminum oxide particles, selective infiltration etching (SIE), or fusion sputtering (FS). The specimens were bonded to pre-aged composite disks using a composite cement containing phosphate monomers (Panavia F2...
2018: Journal of Adhesive Dentistry
https://www.readbyqxmd.com/read/29505421/long-fusion-arthrodesis-stopping-at-l5-for-adult-scoliosis-fate-of-l5-s1-disk-and-risk-factors-for-subsequent-disk-degeneration
#11
Xianda Gao, Linfeng Wang, Jingtao Zhang, Peng Wang, Yong Shen
STUDY DESIGN: This is retrospective study. OBJECTIVE: Our purpose is to examine the state of the L5-S1 disk after long fusion arthrodesis stopping at L5 in adult scoliosis, and to identify the risk factors for disk degeneration. SUMMARY OF BACKGROUND DATA: The long fusion arthrodesis surgery for adult scoliosis has shown to have good clinical results. However, there is still some controversy with reference to the potential caudal extents of the fusion, that is, L5 or S1...
April 2018: Clinical Spine Surgery
https://www.readbyqxmd.com/read/29497616/magnetic-resonance-imaging-signal-alterations-in-paraspinal-muscles-in-dogs-with-acute-thoracolumbar-intervertebral-disk-extrusion
#12
Peter Trampus, Christine Goepfert, Monika Welle, Diana Henke, Franck Forterre, Daniela Schweizer-Gorgas
Muscle signal alteration detected on MRI is seen in diverse pathologic conditions. We observed signal alterations within the paraspinal muscles in dogs with acute thoracolumbar intervertebral disk extrusion. The aim of this retrospective study was to describe MRI features of paraspinal muscle signal alteration in dogs with acute thoracolumbar intervertebral disk extrusion and to investigate an association of the signal alterations with neurological grade, type and location of intervertebral disk extrusion, degree of spinal cord compression, and presence of epidural hemorrhage...
2018: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/29476072/circular-rna-grb10-as-a-competitive-endogenous-rna-regulating-nucleus-pulposus-cells-death-in-degenerative-intervertebral-disk
#13
Wei Guo, Bin Zhang, Kun Mu, Shi-Qing Feng, Zhan-Yin Dong, Guang-Zhi Ning, Hao-Ran Li, Shen Liu, Ling Zhao, Yan Li, Bing-Bing Yu, Hui-Quan Duan, Chao Sun, Yong-Jin Li
Intervertebral disc degeneration (IDD) is an important factor leading to low back pain, but the underlying mechanisms remain poorly understood. Compared with normal nucleus pulposus (NP) tissues, the expression of circ-GRB10 was downregulated in IDD. Furthermore, overexpression of circ-GRB10 inhibited NP cell apoptosis. circ-GRB10 could sequester miR-328-5p, which could potentially lead to the upregulation of target genes related to cell proliferation via the ErbB pathway. In conclusion, the present study revealed that circ-GRB10/miR-328-5p/ERBB2 signaling pathway is involved in IDD development, suggesting that circ-GRB10 might be a novel therapeutic target for IDD...
February 23, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29452106/nerve-fibre-layer-degeneration-and-retinal-ganglion-cell-loss-long-term-after-optic-nerve-crush-or-transection-in-adult-mice
#14
M C Sánchez-Migallón, F J Valiente-Soriano, M Salinas-Navarro, F M Nadal-Nicolás, M Jiménez-López, M Vidal-Sanz, M Agudo-Barriuso
We have investigated the long term effects of two different models of unilateral optic nerve (ON) lesion on retinal ganglion cells (RGCs) and their axons, in the injured and contralateral retinas of adult albino mice. Intact animals were used as controls. The left ON was intraorbitally crushed or transected at 0.5 mm from the optic disk and both retinas were analyzed at 2, 3, 5, 7, 14, 30, 45 or 90 days after injury. RGCs were immunoidentified with anti-Brn3a, and their axons with anti-highly phosphorylated axonal neurofilament subunit H (pNFH)...
May 2018: Experimental Eye Research
https://www.readbyqxmd.com/read/29417208/novel-pathomorphologic-classification-of-capsulo-articular-lesions-of-the-pubic-symphysis-in-athletes-to-predict-treatment-and-outcome
#15
Sascha Hopp, Ishaq Ojodu, Atul Jain, Tobias Fritz, Tim Pohlemann, Jens Kelm
INTRODUCTION: Radiographic abnormalities of the symphysis as well as the formation of accessory clefts, indicating injury at the rectus-adductor aponeurosis, reportedly relate to longstanding groin pain in athletes. However, yet, no systematic classification for clinical and scientific purposes exists. We aimed to (1) create a radiographic classification based on symphysography; (2) test intra- and interobserver reliability; (3) characterise clinical significance of the morphologic patterns by evaluating success of injection therapy...
May 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29338979/dysregulated-autophagy-in-restrictive-cardiomyopathy-due-to-pro209leu-mutation-in-bag3
#16
A Schänzer, S Rupp, S Gräf, D Zengeler, C Jux, H Akintürk, L Gulatz, N Mazhari, T Acker, R Van Coster, B K Garvalov, A Hahn
Myofibrillary myopathies (MFM) are hereditary myopathies histologically characterized by degeneration of myofibrils and aggregation of proteins in striated muscle. Cardiomyopathy is common in MFM but the pathophysiological mechanisms are not well understood. The BAG3-Pro209Leu mutation is associated with early onset MFM and severe restrictive cardiomyopathy (RCM), often necessitating heart transplantation during childhood. We report on a young male patient with a BAG3-Pro209Leu mutation who underwent heart transplantation at eight years of age...
March 2018: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/29335677/two-dimensional-imaging-and-modification-of-nanophotonic-resonator-modes-using-a-focused-ion-beam
#17
William R McGehee, Thomas Michels, Vladimir Aksyuk, Jabez J McClelland
High-resolution imaging of optical resonator modes is a key step in the development and characterization of nanophotonic devices. Many sub-wavelength mode-imaging techniques have been developed using optical and electron beam excitation-each with its own limitations in spectral and spatial resolution. Here, we report a 2D imaging technique using a pulsed, low-energy focused ion beam of Li+ to probe the near-surface fields inside photonic resonators. The ion beam locally modifies the resonator structure, causing temporally varying spectroscopic shifts of the resonator...
November 2017: Optica
https://www.readbyqxmd.com/read/29315121/cervical-total-disk-arthroplasty
#18
Timothy T Roberts, Ryan J Filler, Jason W Savage, Edward C Benzel
In the United States, cervical total disk arthroplasty (TDA) is US Federal Drug Administration (FDA) approved for use in both 1 and 2-level constructions for cervical disk disease resulting in myelopathy and/or radiculopathy. TDA designs vary in form, function, material composition, and even performance in?vivo. However, the therapeutic goals are the same: to remove the painful degenerative/damaged elements of the intervertebral discoligamenous joint complex, to preserve or restore the natural range of spinal motion, and to mitigate stresses on adjacent spinal segments, thereby theoretically limiting adjacent segment disease (ASDis)...
February 2018: Clinical Spine Surgery
https://www.readbyqxmd.com/read/29315118/characteristics-of-cervical-spine-motion-in-different-types-of-cervical-alignment-kinematic-mri-study
#19
Kittipong Sessumpun, Permsak Paholpak, Kevork N Hindoyan, Koji Tamai, Thananit Sangkomkamhang, Zorica Buser, Jeffrey C Wang
STUDY DESIGN: Retrospective study. OBJECTIVE: To evaluate how each type of sagittal cervical alignment affects the motion of the upper and subaxial cervical spine using kinematic magnetic resonance imaging. SUMMARY OF BACKGROUND DATA: The sagittal malalignment of the cervical spine from degeneration in the subaxial cervical spine reflects a disruption in the kinematic properties of the cervical spine and affects the motion of adjacent segments...
January 8, 2018: Clinical Spine Surgery
https://www.readbyqxmd.com/read/29290065/pathophysiology-of-primary-open-angle-glaucoma-from-a-neuroinflammatory-and-neurotoxicity-perspective-a-review-of-the-literature
#20
REVIEW
Karine Evangelho, Maria Mogilevskaya, Monica Losada-Barragan, Jeinny Karina Vargas-Sanchez
PURPOSE: Glaucoma is the leading cause of blindness in humans, affecting 2% of the population. This disorder can be classified into various types including primary, secondary, glaucoma with angle closure and with open angle. The prevalence of distinct types of glaucoma differs for each particular region of the world. One of the most common types of this disease is primary open-angle glaucoma (POAG), which is a complex inherited disorder characterized by progressive retinal ganglion cell death, optic nerve head excavation and visual field loss...
December 30, 2017: International Ophthalmology
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