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https://www.readbyqxmd.com/read/29352928/thermo-sensitive-injectable-glycol-chitosan-based-hydrogel-for-treatment-of-degenerative-disc-disease
#1
Zhengzheng Li, Hyeeun Shim, Myeong Ok Cho, Ik Sung Cho, Jin Hyun Lee, Sun-Woong Kang, Bosun Kwon, Kang Moo Huh
The use of injectable hydrogel formulations have been suggested as a promising strategy for the treatment of degenerative disc disease to both restore the biomechanical function and reduce low back pain. In this work, a new thermo-sensitive injectable hydrogels with tunable thermo-sensitivity and enhanced stability were developed with N-hexanoylation of glycol chitosan (GC) for treatment of degenerative disc disease, and their physico-chemical and biological properties were evaluated. The sol-gel transition temperature of the hydrogels was controlled in a range of 23-56 °С, depending on the degree of hexanoylation and the polymer concentration...
March 15, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29352194/sirt6-overexpression-suppresses-senescence-and-apoptosis-of-nucleus-pulposus-cells-by-inducing-autophagy-in-a-model-of-intervertebral-disc-degeneration
#2
Jian Chen, Jun-Jun Xie, Meng-Yun Jin, Yun-Tao Gu, Cong-Cong Wu, Wei-Jun Guo, Ying-Zhao Yan, Zeng-Jie Zhang, Jian-Le Wang, Xiao-Lei Zhang, Yan Lin, Jia-Li Sun, Guang-Hui Zhu, Xiang-Yang Wang, Yao-Sen Wu
Treatment of intervertebral disc degeneration (IDD) seeks to prevent senescence and death of nucleus pulposus (NP) cells. Previous studies have shown that sirt6 exerts potent anti-senescent and anti-apoptotic effects in models of age-related degenerative disease. However, it is not known whether sirt6 protects against IDD. Here, we explored whether sirt6 influenced IDD. The sirt6 level was reduced in senescent human NP cells. Sirt6 overexpression protected against apoptosis and both replicative and stress-induced premature senescence...
January 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29350649/magnetic-resonance-imaging-in-degenerative-disease-of-the-lumbar-spine-fat-saturation-technique-and-contrast-medium
#3
Paola D'Aprile, Michelangelo Nasuto, Alfredo Tarantino, Giuseppe Guglielmi, J Randy Jinkins
PURPOSE: To examine both anterior and posterior elements of the lumbar spine in patients with low back pain using MRI T2-weighted sequences with Fat Saturation (FS) and contrast enhanced T1-weighted sequences with FS. MATERIALS AND METHODS: Two thousand eight hundred and twenty (2820) patients (1628 male, 1192 female, mean age 54) presenting low back pain underwent MRI standard examination (Sagittal T1w TSE and T2w TSE, axial T1 SE) with the addition of sagittal and axial T2w Fat Sat (FS) sequences...
January 19, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29350003/-anatomical-feature-of-lumbar-and-s%C3%A2-pedicle-in-patients-with-thoracolumbar-kyphosis-secondary-to-ankylosing-spondylitis
#4
Zong-Xian Feng, Bang-Ping Qian, Sai-Hu Mao, Yong Qiu
OBJECTIVE: To measure the correlative parameters of vertebral pedicles from L₁ to S₁ by CT scan in the patients with thoracolumbar kyphosis secondary to ankylosing spondylitis(AS) and disc degenerative disease(DDD), and analyze their anatomical difference in order to provide the selection and placement of pedicle screw during operation. METHODS: The clinical data of 30 male AS patients (AS group) with the mean age of(35.7±9.5) years (ranged, 23 to 51) and 30 male DDD patients (DDD group) with the mean age of(52...
February 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29348859/the-effect-of-systematic-lower-limb-rehabilitation-training-in-elderly-patients-undergoing-lumbar-fusion-surgery-a-retrospective-study
#5
Si-Kai Liu, Yan-Li Song, Wen-Yuan Ding, Da-Long Yang, Lei Ma, Si-Dong Yang
Objectives: The purpose of this study was to explore the effect of systematic lower-limb rehabilitation training in elderly patients undergoing lumbar fusion surgery due to serious degenerative intervertebral disc diseases. Results: At the 1st week after surgery, clinical rehabilitation effect in intervention group was better regarding lower-limb muscle strength, lower-limb DVT, VAS score, and ODI, as compared with control group (all p < 0.05). During the first two weeks after surgery, satisfaction rate in intervention group was higher than that in control group...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348392/rapamycin-prevents-the-intervertebral-disc-degeneration-via-inhibiting-differentiation-and-senescence-of-annulus-fibrosus-cells
#6
Changhong Gao, Bin Ning, Chenglin Sang, Ying Zhang
The effects of bleomycin and rapamycin on cellular senescence and differentiation of rabbit annulus fibrosus stem cells (AFSCs) were investigated using a cell culture model. The results showed that bleomycin induced cellular senescence in AFSCs as evidenced by senescence-associated secretory phenotype. The morphology of AFSCs was changed from cobblestone-like cells to pancake-like cells. The senescence-associated β-galactosidase activity, the protein expression of P16 and P21, and inflammatory-related marker gene levels IL-1β, IL-6, and TNF-α were increased in bleomycin-treated AFSCs in a dose-dependent manner...
January 18, 2018: Aging
https://www.readbyqxmd.com/read/29343508/circular-rna-vma21-protects-against-intervertebral-disc-degeneration-through-targeting-mir-200c-and-x-linked-inhibitor-of-apoptosis-protein
#7
Xiaofei Cheng, Liang Zhang, Kai Zhang, Guoying Zhang, Ying Hu, Xiaojiang Sun, Changqing Zhao, Hua Li, Yan Michael Li, Jie Zhao
OBJECTIVES: Circular RNAs (circRNAs) have been proven to function as competing endogenous RNAs to interact with microRNAs (miRNAs) and influence the expression of miRNA target mRNAs. In this study, we investigated whether circRNAs could act as competing endogenous RNAs to regulate the pathological process of intervertebral disc degeneration (IVDD). METHODS: The role and mechanism of a circRNA, circVMA21, in IVDD were explored in nucleus pulposus (NP) cells and degenerative NP tissues from patients and rat models...
January 17, 2018: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/29340169/autoimmune-retinopathy-a-review
#8
REVIEW
Aristófanes Mendonça Canamary, Walter Yukihiko Takahashi, Juliana Maria Ferraz Sallum
Autoimmune retinopathy (AIR) is a rare and still poorly understood immune-mediated disease that may cause inflammation from circulating autoantibodies against the retina. It may be related to history of autoimmune disease in the patient or in a family member or the presence of neoplastic disease in the individual. The disease may be subdivided into paraneoplastic and non-paraneoplastic AIR. When related to melanoma, it is referred to as MAR, and when related to other cancers, it is called CAR. The exact prevalence of AIR is unknown...
2018: International Journal of Retina and Vitreous
https://www.readbyqxmd.com/read/29329787/outcomes-of-multisegmental-transforaminal-enlarged-decompression-plus-posterior-pedicle-screw-fixation-for-multilevel-lumbar-spinal-canal-stenosis-associated-with-lumbar-instability
#9
Chao Sun, Wei Ji Tian, Hui Xin Liu, Ping Guo Guan
PURPOSE: The aim of this study was to evaluate the clinical and radiologic results of multisegmental transforaminal enlarged decompression (TED) plus posterior pedicle screw fixation in the treatment of multilevel lumbar spinal canal stenosis (LSCS) with lumbar instability (MLSCSI). METHODS: 113 patients with MLSCSI underwent surgery were recruited in this study. All patients were suffering from symptoms typical of degenerative LSCS and treated with either TED plus fusion (TEDF group) or conventional laminectomy plus fusion (CLF group)...
January 9, 2018: International Journal of Surgery
https://www.readbyqxmd.com/read/29322911/comparison-of-lumbar-pedicular-dynamic-stabilisation-systems-versus-fusion-for-the-treatment-of-lumbar-degenerative-disc-disease-a-meta-analysis
#10
Y-J Huang, S-J Zhao, Q Zhang, L-M Nong, N-W Xu
This study aimed to systematically compare the safety, effectiveness and radiological changes after lumbar pedicular dynamic stabilisation systems and fusion to treat lumbar degenerative disc disease . All studies that were performed to compare various lumbar pedicular dynamic stabilisation systems with any lumbar fusion to treat lumbar degenerative disc disease and were published until April 30, 2015 were acquired through a comprehensive search in various databases. A meta-analysis was performed after the methodological qualities of trials were assessed and after data were extracted...
March 2017: Acta Orthopaedica Belgica
https://www.readbyqxmd.com/read/29322313/implantation-of-an-empty-polyetheretherketone-cage-in-anterior-cervical-discectomy-and-fusion-a-prospective-randomised-controlled-study-with-2%C3%A2-years-follow-up
#11
Shang-Wen Feng, Ming-Chau Chang, Po-Hsin Chou, Hsi-Hsien Lin, Shih-Tien Wang, Chien-Lin Liu
PURPOSE: To compare the clinical outcomes, radiographic results and fusion rate of ACDF between empty PEEK cages and PEEK cages packed with β-tricalcium phosphate. METHODS: Forty-five patients were prospectively enrolled with cervical degenerative disc disease who requiring ACDF with a PEEK cage. 23 patients were randomised to the study group (empty cages) and 22 patients were in the control group (cages filled with β-tricalcium phosphate). Both patient groups were fixed with a cervical locking plate...
January 10, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29322267/association-of-decision-making-in-spinal-surgery-with-specialty-and-emotional-involvement-the-indications-in-spinal-surgery-indiana-survey
#12
Nico Sollmann, Carmen Morandell, Lucia Albers, Michael Behr, Alexander Preuss, Andreas Dinkel, Bernhard Meyer, Sandro M Krieg
BACKGROUND: Although recent trials provided level I evidence for the most common degenerative lumbar spinal disorders, treatment still varies widely. Thus, the Indications in Spinal Surgery (INDIANA) survey explores whether decision-making is influenced by specialty or personal emotional involvement of the treating specialist. METHOD: Nationwide, neurosurgeons and orthopedic surgeons specialized in spine surgery were asked to answer an Internet-based questionnaire with typical clinical patient cases of lumbar disc herniation (DH), lumbar spinal stenosis (SS), and lumbar degenerative spondylolisthesis (SL)...
January 10, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29320615/an-intervertebral-disc-whole-organ-culture-system-to-investigate-proinflammatory-and-degenerative-disc-disease-condition
#13
Gernot Lang, Yishan Liu, Janna Geries, Zhiyu Zhou, David Kubosch, Norbert Südkamp, R Geoff Richards, Mauro Alini, Sibylle Grad, Zhen Li
OBJECTIVE: The aim of this study was to compare the effect of different disease initiators of degenerative disc disease (DDD) within an intervertebral disc (IVD) organ culture system, and to understand the interplay between inflammation and degeneration in the early stage of DDD. DESIGN: Bovine caudal IVDs were cultured within a bioreactor for up to 11 days. Control group was cultured under physiological loading (0.02-0.2 MPa; 0.2 Hz; 2h/day) and high glucose (4...
January 10, 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29315119/cervical-artificial-disc-replacement-with-discover-prosthesis-does-not-reduce-the-midterm-risk-of-heterotopic-ossification-results-of-a-cohort-study
#14
Jinhao Miao, Ye Shen, Chao Li, Lei Fang, Lei Zhang, Xiangyi Zhang, Yiman Li, Yong Kuang
STUDY DESIGN: A prospective cohort study with 79 patients. OBJECTIVE: To analyze the midterm incidence of heterotopic ossification (HO) after cervical artificial disc replacement with Discover prosthesis in treatment of cervical degenerative disc disease. MATERIALS AND METHODS: A cohort of 79 patients with 102 Discover prostheses (56 monosegment and 23 bisegments) was evaluated. Clinical and radiographic follow-up was performed. The performance of HO of the operative segments was assessed annually after the operation for 4 years...
January 8, 2018: Clinical Spine Surgery
https://www.readbyqxmd.com/read/29312639/progranulin-derived-engineered-protein-atsttrin-suppresses-tnf-%C3%AE-mediated-inflammation-in-intervertebral-disc-degenerative-disease
#15
Hong Ding, Jianlu Wei, Yunpeng Zhao, Yi Liu, Lian Liu, Lei Cheng
Atsttrin, an engineered molecule composed of three fragments of progranulin(PGRN), exerts comparable anti-inflammation ability. Intervertebral disc degeneration (IDD) is involved in inflammation in which TNF-α plays a key role. This study aims to examine the effect and the mechanism of Atsttrin in the pathogenesis of intervertebral disc degeneration. For this purpose, we took advantage of murine and human intervertebral disc (IVD) and examined the expression of TNF-α in IVD tissues using immunohistochemistry and TNF-α level in peripheral sera by ELISA assay...
December 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29310920/total-hip-arthroplasty-patients-with-fixed-spinopelvic-alignment-are-at-higher-risk-of-hip-dislocation
#16
Christina I Esposito, Kaitlin M Carroll, Peter K Sculco, Douglas E Padgett, Seth A Jerabek, David J Mayman
BACKGROUND: Sitting radiographs have been used as a pre-operative tool to plan patient-specific total hip arthroplasty (THA) component position that would improve hip stability. Previous work has demonstrated that spinal mobility may impact functional acetabular position when seated. We sought to determine whether patients who dislocate following THA have different sitting spinopelvic alignment or acetabular component orientation compared to patients who did not dislocate. METHODS: A consecutive series of 1000 patients underwent post-operative low-dose biplanar spine-to-ankle lateral radiographs in standing and sitting positions 1 year following THA...
December 13, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29299204/downregulation-of-microrna-125a-is-involved-in-intervertebral-disc-degeneration-by-targeting-pro-apoptotic-bcl-2-antagonist-killer-1
#17
Ping Liu, Feng Chang, Ting Zhang, Gang Gao, Chen Yu, Sheng-Qiang Ding, Gen-Le Zuo, Xin-Hu Huang
Objectives: To investigate the role of the microRNA-125a (miR-125a) and BAK1 in intervertebral disc degeneration (IDD). Materials and Methods: Degenerative lumbar nucleus pulposus (NP) tissues were obtained from 193 patients who underwent resection, and normal controls consisted of normal NP tissues from 32 patients with traumatic lumbar fracture in our hospital. All patients were graded according to the Pfirrmann criteria. QRT-PCR was used to detect the expression of miR-125a and BAK1, and apoptosis of NP tissues detected by TUNEL staining...
November 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29290128/short-term-outcomes-of-lateral-lumbar-interbody-fusion-without-decompression-for-the-treatment-of-symptomatic-degenerative-spondylolisthesis-at-l4-5
#18
Peter G Campbell, Pierce D Nunley, David Cavanaugh, Eubulus Kerr, Philip Andrew Utter, Kelly Frank, Marcus Stone
OBJECTIVE Recently, authors have called into question the utility and complication index of the lateral lumbar interbody fusion procedure at the L4-5 level. Furthermore, the need for direct decompression has also been debated. Here, the authors report the clinical and radiographic outcomes of transpsoas lumbar interbody fusion, relying only on indirect decompression to treat patients with neurogenic claudication secondary to Grade 1 and 2 spondylolisthesis at the L4-5 level. METHODS The authors conducted a retrospective evaluation of 18 consecutive patients with Grade 1 or 2 spondylolisthesis from a prospectively maintained database...
January 2018: Neurosurgical Focus
https://www.readbyqxmd.com/read/29288377/outcomes-of-the-bryan-cervical-disc-replacement-fifteen-year-follow-up
#19
Vincent Pointillart, Jean-Etienne Castelain, Pierre Coudert, Derek Thomas Cawley, Olivier Gille, Jean-Marc Vital
BACKGROUND: The CTDR is a technique that treats cervical disc degenerative disease. Initial shorter-term studies showed good clinical and radiological results. PURPOSE: To assess the clinical and radiological results of Bryan cervical disc replacement (Medtronic Sofamor Danek Inc., Memphis, TN) at 15-year follow-up. RESULTS: This prospective study included 20 patients who underwent 22 CTDR, comprising a single-level procedure in 14 patients and two-level procedures in six patients...
December 29, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/29288031/prevalence-and-characteristics-of-myopic-degeneration-in-an-adult-chinese-american-population-the-chinese-american-eye-study
#20
Farzana Choudhury, Stacy M Meuer, Ronald Klein, Dandan Wang, Mina Torres, Xuejuan Jiang, Roberta McKean-Cowdin, Rohit Varma
PURPOSE: To characterize and provide population-based prevalence estimates of myopic degeneration (MD) among Chinese Americans, the fastest growing minority population in the United States in the last decade. DESIGN: Population-based, cross-sectional study. METHODS: 1523 Chinese American adults with myopia, aged 50 years and older, residing in the City of Monterey Park, California, underwent an interview and comprehensive eye exam, including subjective and objective refraction, and stereoscopic fundus photography...
December 26, 2017: American Journal of Ophthalmology
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