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Degenerated Disc Disease

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https://www.readbyqxmd.com/read/29222837/low-melt-bioactive-glass-reinforced-3d-printing-akermanite-porous-cages-with-highly-improved-mechanical-properties-for-lumbar-spinal-fusion
#1
Xiurong Ke, Lei Zhang, Xianyan Yang, Juncheng Wang, Chen Zhuang, Zhouwen Jin, An Liu, Tengfei Zhao, Sanzhong Xu, Changyou Gao, Zhongru Gou, Guojing Yang
Although great strides have been made in medical technology, low back/neck pain and intervertebral disc degeneration initiated from disc degenerative disease remains a clinical challenge. Within the field of regenerative medicine therapy, we have sought to improve the biomechanical transformation of spinal fusion procedures conducted using biodegradable porous implants. Specifically, we have focused on developing mechanically strong bioceramic cages for spinal fusion and functional recovery. Herein we fabricated the akermanite (AKE) ceramic-based porous cages using low-melting bioactive glass (BG) and 3D printing technology...
December 9, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29220729/comparison-of-dynamic-cervical-implant-versus-anterior-cervical-discectomy-and-fusion-for-the-treatment-of-single-level-cervical-degenerative-disc-disease-a-five-year-follow-up
#2
Ce Zhu, Xi Yang, Lei Wang, Bo-Wen Hu, Li-Min Liu, Lin-Nan Wang, Hao Liu, Yue-Ming Song
OBJECTIVE: To compare clinical and radiographic outcomes of dynamic cervical implant(DCI) with anterior cervical discectomy and fusion(ACDF) in the treatment of single-level cervical degenerative disc disease (CDDD) 5 years after surgery. PATIENTS AND METHODS: Forty-three patients with DCI were matched one-to-one with patients with ACDF based on age, gender, and operative segment in this retrospective study. All patients had been followed up for more than 5 years...
December 5, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29216503/clinical-and-radiographic-comparison-of-cervical-disc-arthroplasty-with-prestige-lp-disc-and-anterior-cervical-fusion-a-minimum-6-year-follow-up-study
#3
Junfeng Zeng, Hao Liu, Beiyu Wang, Yuxiao Deng, Chen Ding, Hua Chen, Yi Yang, Ying Hong, Ning Ning
OBJECTIVES: To retrospectively compare the long-term clinical and radiographic outcomes of cervical disc arthroplasty (CDA) with Prestige-LP Disc and anterior cervical discectomy and fusion (ACDF) for single-level cervical degenerative disc disease. PATIENTS AND METHODS: Ninety-eight patients (45 CDA and 53 ACDF) with a minimum 6-year follow-up were included. Clinical evaluations included Japanese Orthopedic Association (JOA), visual analogue scale (VAS), and Neck Disability Index (NDI) scores...
December 4, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29215065/toll-like-receptor-activation-induces-degeneration-of-human-intervertebral-discs
#4
Emerson Krock, Derek H Rosenzweig, J Brooke Currie, Daniel G Bisson, Jean A Ouellet, Lisbet Haglund
Toll-like receptors (TLR) are activated by endogenous alarmins such as fragmented extracellular matrix compounds found in the degenerating disc. TLRs regulate cytokine, neurotrophin, and protease expression in human disc cells in vitro, and thus control key factors in disc degeneration. However, whether TLR activation leads to degenerative changes in intact human discs is unclear. Nucleus pulposus (NP) cells isolated from non-degenerating discs increase IL-1β and nerve growth factor gene expression following treatment with Pam2CSK4 (TLR2/6 agonist) but not Pam3CSK4 (TLR1/2 agonist)...
December 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29214370/lumbar-intervertebral-disc-allograft-transplantation-the-revascularisation-pattern
#5
Yong-Can Huang, Jun Xiao, Victor Y Leung, William W Lu, Yong Hu, Keith D K Luk
PURPOSE: Fresh frozen intervertebral disc allograft transplantation has been reported to be a viable treatment option for advanced degenerative disc diseases, but rapid degeneration of the postoperative allograft was found. Loss of nutrient supply is believed to be the most likely inducer because the disc allografts have to endure in an ischaemic environment until the nutrient pathway is re-established. The aim of this study was to focus on the revascularisation of the disc allograft after transplantation in goats...
December 6, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29204735/inflammaging-in-cervical-and-lumbar-degenerated-intervertebral-discs-analysis-of-proinflammatory-cytokine-and-trp-channel-expression
#6
Aleksandra Sadowska, Ermioni Touli, Wolfgang Hitzl, Helen Greutert, Stephen J Ferguson, Karin Wuertz-Kozak, Oliver N Hausmann
PURPOSE: To investigate and compare the occurrence of inflammatory processes in the sites of disc degeneration in the lumbar and cervical spine by a gene array and subsequent qPCR and to investigate the mechanistic involvement of transient receptor potential channels TRPC6 and TRPV4. METHODS: The gene expression of inflammatory cytokines and TRP channels was measured in human disc samples obtained from patients undergoing discectomy at the cervical (n = 24) or lumbar (n = 27) spine for degenerative disc disease (DDD) and disc herniation (DH) and analyzed for differences with regard to spinal level, IVD degeneration grade, Modic grade, age, sex, disc region and surgical extent...
December 4, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29197741/exploration-about-changes-of-il-10-nf-%C3%AE%C2%BAb-and-mmp-3-in-a-rat-model-of-cervical-spondylosis
#7
Jianjian Yin, Kewei Ren, Yongjing Huang, Gongming Gao, Luming Nong, Nanwei Xu
OBJECTIVES: To investigate the relationship and mechanism between IL-10, NF-κB and MMP-3 in cervical degenerative disease induced by unbalanced dynamic and static forces in rats. METHODS: Sixty Sprague Dawley rats were randomized into test (n=45) and control (n=15) groups, which were randomly subdivided into three groups corresponding to one-month, three-month and six-month post-operation. Test group included 10, 15, 20 rats at corresponding postoperative stage and control group had five rats at each time point...
November 30, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/29196238/tgf-%C3%AE-synergizes-with-ml264-to-block-il-1%C3%AE-induced-matrix-degradation-mediated-by-kr%C3%A3-ppel-like-factor-5-in-the-nucleus-pulposus
#8
Zi'ang Xie, Zhiwei Jie, Gangliang Wang, Xuewu Sun, Pan Tang, Shuai Chen, An Qin, Jian Wang, Shunwu Fan
Intervertebral disc degeneration causes low back pain.Interleukin-1β (IL-1β) is a well-known inflammatory mediator that is involved in disc degeneration but its molecular mechanisms on catabolic and anabolic events in nucleus pulposus (NP) cells remain unclear. Krüppel-like factor 5 (KLF5) is associated with inflammation and was previously shown to cause cartilage degradation. In this study, we revealed that KLF5 is involved in IL-1β activated NF-kB cascade by enhancing both p65 phosphorylation and p65 acetylation...
November 28, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29189218/adjacent-level-degeneration-bryan-total-disc-arthroplasty-versus-anterior-cervical-discectomy-and-fusion
#9
Justin Miller, Rick Sasso, Paul Anderson, K Daniel Riew, Austin McPhilamy, Thomas Gianaris
STUDY DESIGN: Prospective randomized, 2-center, clinical trial. OBJECTIVE: To prospectively compare adjacent level degeneration between the Bryan Cervical Disc Prosthesis and anterior cervical discectomy and fusion (ACDF), and assess the reliability of our measurements utilizing a method not previously described. SUMMARY OF BACKGROUND DATA: ACDF is a reliable and proven procedure for the treatment of radiculopathy and/or myelopathy. Despite a successful track record several limitations including adjacent segment degeneration/disease, loss of viscoelastic disc properties, perioperative immobilization, graft site morbidity, pseudarthrosis, and plating complications have been identified...
November 16, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/29180636/anterior-cervical-discectomy-and-fusion-surgery-versus-total-disc-replacement-a-comparative-study-with-minimum-of-10-year-follow-up
#10
Si-Dong Yang, Yan-Bo Zhu, Suo-Zhou Yan, Jun Di, Da-Long Yang, Wen-Yuan Ding
Based on long-term follow-ups, this study was designed to investigate the incidence and risk factors for postoperative adjacent segment degeneration (ASD) after anterior cervical discectomy and fusion (ACDF) or total disc replacement (TDR) in treating cervical degenerative diseases. Between January 2000 and December 2005, 108 cases undergoing ACDF and 78 undergoing TDR, were enrolled into this study. All medical records were retrospectively collected. Every patient was followed up at least 10 years. Outcome assessment included visual analogue scale (VAS) score, Neck Disability Index (NDI) score, Japanese Orthopaedic Association (JOA) score, and radiographic parameters...
November 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29179499/association-between-il4-il6-gene-polymorphism-and-lumbar-disc-degeneration-in-chinese-population
#11
Yong Zhu, Shunan Li, FangLin Niu, Mengdan Yan, Jing Li, Haiyu Jia, Xuejun Yang
Lumbar disc disease (LDD) is a common musculoskeletal disorder, caused by degeneration of intervertebral discs of the lumbar spine and is one of the most common musculoskeletal disorders affliction in adult. There is growing evidence that LDD has strong genetic determinants. We analyze whether the IL4 and IL6 gene polymorphism is related to LDD in Chinese Han population. The participants were 498 with LDD and 463 without LDD. IL4 and IL6 gene polymorphism were determined by Sequenom MassARRAY. We found that SNPs rs1800796(OR = 1...
October 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/29162138/predictability-of-the-effects-of-facet-joint-infiltration-in-the-degenerate-lumbar-spine-when-assessing-mri-scans
#12
Ulf Krister Hofmann, Ramona Luise Keller, Christian Walter, Falk Mittag
BACKGROUND: Imaging results are frequently considered as hallmarks of disease by spine surgeons to plan their future treatment strategy. Numerous classification systems have been proposed to quantify or grade lumbar magnetic resonance imaging (MRI) scans and thus objectify imaging findings. The clinical impact of the measured parameters remains, however, unclear. To evaluate the pathological significance of imaging findings in patients with multisegmental degenerative findings, clinicians can perform image-guided local infiltrations to target defined areas such as the facet joints...
November 21, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29156793/methylation-of-microrna-129-5p-modulates-nucleus-pulposus-cell-autophagy-by-targeting-beclin-1-in-intervertebral-disc-degeneration
#13
Kangcheng Zhao, Yukun Zhang, Liang Kang, Yu Song, Kun Wang, Shuai Li, Xinghuo Wu, Wenbin Hua, Zengwu Shao, Shuhua Yang, Cao Yang
MicroRNAs play an important role in the etiology and progression of many diseases, including intervertebral disc degeneration (IVDD). The miRNA miR-129-5P regulates autophagy in various cancers, but its role in human nucleus pulposus (NP) cells is unclear. The present study investigated whether miR-129-5p regulates the expression of Beclin-1 which is known to induce autophagy in NP cells by evaluating their levels in normal and degenerative disc tissues and human NP cells transfected with miR-129-5P mimic or inhibitor by quantitative real-time (qRT-)PCR, western blotting, flow cytometry, and immunofluorescence analysis...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29145636/localization-and-functional-characterization-of-the-p-asn965ser-n965s-abca4-variant-in-mice-reveal-pathogenic-mechanisms-underlying-stargardt-macular-degeneration
#14
Laurie L Molday, Daniel Wahl, Marinko Sarunic, Robert S Molday
ABCA4 is a member of the superfamily of ATP-binding cassette (ABC) proteins that transports N-retinylidene-phosphatidylethanolamine (N-Ret-PE) across outer segment disc membranes thereby facilitating the removal of potentially toxic retinoid compounds from photoreceptor cells. Mutations in the gene encoding ABCA4 are responsible for Stargardt disease (STGD1), an autosomal recessive retinal degenerative disease that causes severe vision loss. To define the molecular basis for STGD1 associated with the p.Asn965Ser (N965S) mutation in the Walker A motif of nucleotide binding domain 1 (NBD1), we generated a p...
November 14, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/29145437/assessment-of-the-suitability-of-biodegradable-rods-for-use-in-posterior-lumbar-fusion-an-in-vitro-biomechanical-evaluation-and-finite-element-analysis
#15
Fon-Yih Tsuang, Yueh-Ying Hsieh, Yi-Jie Kuo, Chia-Hsien Chen, Feng-Huei Lin, Chen-Sheng Chen, Chang-Jung Chiang
Interbody fusion with posterior instrumentation is a common method for treating lumbar degenerative disc diseases. However, the high rigidity of the fusion construct may produce abnormal stresses at the adjacent segment and lead to adjacent segment degeneration (ASD). As such, biodegradable implants are becoming more popular for use in orthopaedic surgery. These implants offer sufficient stability for fusion but at a reduced stiffness. Tailored to degrade over a specific timeframe, biodegradable implants could potentially mitigate the drawbacks of conventional stiff constructs and reduce the loading on adjacent segments...
2017: PloS One
https://www.readbyqxmd.com/read/29142627/a-comparison-of-anterior-cervical-discectomy-and-fusion-versus-fusion-combined-with-artificial-disc-replacement-for-treating-3-level-cervical-spondylotic-disease
#16
Seo-Ryang Jang, Sang-Bok Lee, Kyoung-Suok Cho
Objective: The purpose of this study is to evaluate the efficacy and safety of 3-level hybrid surgery (HS), which combines fusion and cervical disc replacement (CDR), compared to 3-level fusionin patient with cervical spondylosis involving 3 levels. Methods: Patients in the anterior cervical discectomy and fusion (ACDF) group (n=30) underwent 3-level fusion and the HS group (n=19) underwent combined surgery with fusion and CDR. Clinical outcomes were evaluated using the visual analogue scale for the arm, the neck disability index (NDI), Odom criteria and postoperative complications...
November 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/29121960/non-invasive-quantification-of-age-related-changes-in-the-vertebral-endplate-in-rats-using-in-vivo-dce-mri
#17
Hui Li, Jia-Zhi Yan, Yong-Jie Chen, Wei-Bo Kang, Jia-Xi Huang
BACKGROUND: Small animal models that can mimic degenerative disc disease (DDD) are commonly used to examine DDD progression. However, assessments such as histological studies and macroscopic measurements do not allow for longitudinal studies because they can only be completed after the animal is sacrificed. Dynamic contrast-enhanced MRI (DCE-MRI) may provide a reliable, non-invasive in vivo method for detecting the progression. METHODS: The present study investigated the progression of changes in lumbar discs and the effect of endplate conditions on diffusion into the lumbar discs of aging sand rats after intravenous administration of gadolinium-containing contrast medium through the tail vein...
November 9, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29117254/link-n-the-missing-link-towards-intervertebral-disc-repair-is-species-specific
#18
Frances C Bach, Lisanne T Laagland, Michael P Grant, Laura B Creemers, Keita Ito, Björn P Meij, Fackson Mwale, Marianna A Tryfonidou
INTRODUCTION: Degeneration of the intervertebral disc (IVD) is a frequent cause for back pain in humans and dogs. Link-N stabilizes proteoglycan aggregates in cartilaginous tissues and exerts growth factor-like effects. The human variant of Link-N facilitates IVD regeneration in several species in vitro by inducing Smad1 signaling, but it is not clear whether this is species specific. Dogs with IVD disease could possibly benefit from Link-N treatment, but Link-N has not been tested on canine IVD cells...
2017: PloS One
https://www.readbyqxmd.com/read/29115481/sparstolonin-b-prevents-lumbar-intervertebral-disc-degeneration-through-toll-like-receptor-4-nadph-oxidase-activation-and-the-protein-kinase-b-signaling-pathway
#19
Jianhua Ge, Long Chen, Yunkang Yang, Xiaobo Lu, Zhou Xiang
Intervertebral disc degeneration (IVDD) is the most common pathogeny of lumbago. It is the pathological basis for a series of spinal degenerative diseases. For a long time, the diagnosis and treatment of lumbago have rendered difficult, since the pathogeny has not been identified. Therefore, the present study aimed to investigate the protective effect of Sparstolonin B in preventing lumbar intervertebral disc degeneration, and explored its potential mechanism in rats. Firstly, Sparstolonin B effectively reduced the histological score of disc degeneration and increased endplate porosity of L2 superior endplates in a lumbar IVDD rat model...
November 6, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29105592/biologic-annulus-fibrosus-repair-a-review-of-preclinical-in-vivo-investigations
#20
Stephen Rogers Sloan, Marianne Lintz, Ibrahim Hussain, Roger Härtl, Lawrence J Bonassar
Lower back pain, the leading cause of workplace absences and disability, is often attributed to intervertebral disc (IVD) degeneration in which nucleus pulposus (NP) herniates through lesions in the annulus fibrosus (AF) and impinges on the spinal cord and surrounding nerves. Surgeons remove extruded NP via discectomy when indicated by local/radicular pain supported by radiographic evidence, however current interventions do not alter the underlying disease or seal the AF. The reported rates of recurrent herniation or pain following discectomy cases range from 5-25%, which has pushed spine research in recent years towards annular repair and closure strategies...
November 4, 2017: Tissue Engineering. Part B, Reviews
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