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https://www.readbyqxmd.com/read/28810627/carthamin-yellow-inhibits-matrix-degradation-and-inflammation-induced-by-lps-in-the-intervertebral-disc-via-suppression-of-mapk-pathway-activation
#1
Bin Chen, Han-Tao Wang, Bo Yu, Ji-Dong Zhang, Yu Feng
Carthamin yellow (CY), which is a flavonoid compound isolated from safflower, has various pharmacological effects including promoting blood circulation to remove blood stasis and alleviating pain. CY is a herb used in Chinese traditional medicines. Intervertebral disc degeneration (IDD) is a common spinal disorder and degeneration of nucleus pulposus (NP) cells and inflammation are significant parts of the pathological cascade. The curative effect of CY on NP cells in association with degeneration and inflammation remains to be elucidated...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28808602/high-lumbar-noninstrumented-fusion-rates-using-lamina-autograft-and-nanoss-bone-marrow-aspirate
#2
Nancy E Epstein
BACKGROUND: Patients with marked osteoporosis and/or obesity/morbid obesity and severe multilevel lumbar stenosis and other pathology often undergo multilevel laminectomies with non instrumented posterolateral fusions (PLF). The other pathology may include combinations of degenerative spondylolisthesis/lysis, foraminal/far lateral discs, and/or synovial cysts requiring more extensive facet resections. Presently, spine surgeons often use bone graft expanders to supplement the lamina autograft harvested in the course of laminectomy/decompressions for the PLF mass...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28796755/the-effect-of-lumbar-disc-herniation-on-musculoskeletal-loadings-in-the-spinal-region-during-level-walking-and-stair-climbing
#3
Shengzheng Kuai, Zhenhua Liao, Wenyu Zhou, Xinyu Guan, Run Ji, Rui Zhang, Daiqi Guo, Weiqiang Liu
BACKGROUND People with low back pain (LBP) alter their motion patterns during level walking and stair climbing due to pain or fear. However, the alternations of load sharing during the two activities are largely unknown. The objective of this study was to investigate the effect of LBP caused by lumbar disc herniation (LDH) on the muscle activities of 17 main trunk muscle groups and the intradiscal forces acting on the five lumbar discs. MATERIAL AND METHODS Twenty-six healthy adults and seven LDH patients were recruited to perform level walking and stair climbing in the Gait Analysis Laboratory...
August 10, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28796049/tophaceous-gout-causing-lumbar-stenosis-a-case-report
#4
Huigen Lu, Jianming Sheng, Jiaping Dai, Xuqi Hu
RATIONALE: Gout in the spine is very rare. The clinical symptoms of the spinal gout are various and lack of specificity. The authors report a case of spinal gout causing lumbar stenosis. We never find such wide-invasive spinal gouty lesion in the published studies. PATIENT CONCERNS: A 68-year-old male had low back pain radiating to bilateral lower limbs, accompanying with intermittent claudication that lasted for 3 months and aggravated 5 days ago. DIAGNOSES: Spinal gout, lumbar stenosis...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28793005/the-diagnostic-value-of-narrow-band-imaging-for-early-and-invasive-lung-cancer-a-meta-analysis
#5
Juanjuan Zhu, Wei Li, Jihong Zhou, Yuqing Chen, Chenling Zhao, Ting Zhang, Wenjia Peng, Xiaojing Wang
This study aimed to compare the ability of narrow-band imaging to detect early and invasive lung cancer with that of conventional pathological analysis and white-light bronchoscopy. We searched the PubMed, EMBASE, Sinomed, and China National Knowledge Infrastructure databases for relevant studies. Meta-disc software was used to perform data analysis, meta-regression analysis, sensitivity analysis, and heterogeneity testing, and STATA software was used to determine if publication bias was present, as well as to calculate the relative risks for the sensitivity and specificity of narrow-band imaging vs those of white-light bronchoscopy for the detection of early and invasive lung cancer...
July 2017: Clinics
https://www.readbyqxmd.com/read/28791354/collagen-type-ii-is-downregulated-in-the-degenerative-nucleus-pulposus-and-contributes-to-the-degeneration-and-apoptosis-of-human-nucleus-pulposus-cells
#6
Chengjie Lian, Bo Gao, Zizhao Wu, Xianjian Qiu, Yan Peng, Anjing Liang, Caixia Xu, Peiqiang Su, Dongsheng Huang
Degenerative disc disease (DDD) is a common degenerative condition initiated mainly within the nucleus pulposus (NP). To date, the etiopathogenesis of DDD remains unclear, and because no effective therapeutic strategies are available to target its pathological processes, DDD is still treated with symptomatic interventions that are far from adequate. Collagen type II is one of the major matrix components of the NP, and is considered to be essential to NP homeostasis. However, the specific mechanisms by which collagen type II influences NP cells remain unknown...
August 4, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28781889/evaluation-of-macular-and-peripapillary-vessel-flow-density-in-eyes-with-no-known-pathology-using-optical-coherence-tomography-angiography
#7
Muhammad Hassan, Mohammad Ali Sadiq, Muhammad Sohail Halim, Rubbia Afridi, Mohamed K Soliman, Salman Sarwar, Aniruddha Agarwal, Diana V Do, Quan Dong Nguyen, Yasir Jamal Sepah
PURPOSE: To assess normal vessel flow density (VFD) in macular and peripapillary regions of eyes with no known ocular pathology using optical coherence tomography angiography (OCTA). METHODS: AngioVue (Optovue, Fremont, CA, USA) was used to capture OCTA images. A 3 × 3 mm grid and a 4.5 × 4.5 mm grid was used to scan parafoveal and peripapillary regions, respectively. ReVue software was utilized to measure VFD in five sectors within the inner two circles of ETDRS grid in macular region and correlated to retinal thickness of same sectors...
2017: International Journal of Retina and Vitreous
https://www.readbyqxmd.com/read/28767622/adiponectin-down-regulates-tnf-%C3%AE-expression-in-degenerated-intervertebral-discs
#8
Bin Yuan, Liangliang Huang, Ming Yan, Shilei Zhang, Yongfeng Zhang, Boquan Jin, Ying Ma, Zhuojing Luo
STUDY DESIGN: Given the results of previous in vitro investigations of the expression patterns of adiponectin and its receptors in healthy and degenerated intervertebral discs (IVDs), we studied the effects of adiponectin on TNF-α production in degenerated nucleus pulposus (NP) cells and analyzed the association between adiponectin levels in IVD tissues and IVD Pfirrmann grades. OBJECTIVE: investigate the potential role of adiponectin in the pathogenesis of IVD degeneration...
August 1, 2017: Spine
https://www.readbyqxmd.com/read/28765795/inpatient-versus-outpatient-anterior-cervical-discectomy-and-fusion-a-perioperative-complication-analysis-of-259-414-patients-from-the-healthcare-cost-and-utilization-project-databases
#9
Shearwood McClelland Iii, Peter G Passias, Thomas J Errico, R Shay Bess, Themistocles S Protopsaltis
BACKGROUND: Anterior cervical discectomy and fusion (ACDF) is one of the most common operations utilized to address pathology of the cervical spine. Few reports have attempted to compare complications associated with inpatient versus outpatient ACDF. METHODS: The Nationwide Inpatient Sample (NIS) from 2001-2012 and the State Ambulatory Services Database (SASD) for New Jersey (NJ) from 2003-2012 were used for analysis. Patients receiving ACDF (defined as anterior cervical fusion (ICD-0 code=81...
2017: International Journal of Spine Surgery
https://www.readbyqxmd.com/read/28764973/disturbed-desmoglein-2-in-the-intercalated-disc-of-pediatric-patients-with-dilated-cardiomyopathy
#10
Elise L Kessler, Peter Gj Nikkels, Toon Ab van Veen
Dilated cardiomyopathy (DCM) leads to disturbed contraction and force transduction, and is associated with substantial mortality in all age groups. Involvement of a disrupted composition of the intercalated disc (ID) has been reported. However, in children, little is established about such subcellular changes during disease, because of the pathological mix-up with the ongoing cardiac maturation. This leaves maladaptive remodeling often undetected. We aimed at illustrating subcellular alterations in children diagnosed with DCM compared to age-matched controls, focusing on ID proteins known to be crucially stable under healthy conditions and destabilized during cardiac injury in adults...
July 29, 2017: Human Pathology
https://www.readbyqxmd.com/read/28762133/origins-and-neurochemical-characteristics-of-porcine-intervertebral-disc-sympathetic-innervation-a-preliminary-report
#11
Monika Barczewska, Judyta Juranek, Joanna Wojtkiewicz
Intervertebral disc diseases (IVDDs) form a group of a vertebral column disorders affecting a large number of people worldwide. It is estimated that approximately 30% of individuals at the age of 35 and approximately 90% of individuals at the age of 60 and above will have some form of disc-affecting pathological changes leading to disc herniation, prolapse and degeneration as well as discogenic pain. Here, we aimed to establish the origins and neurochemical characteristics of porcine intervertebral disc sympathetic innervation involved in pain signalling in IVDD patients...
July 31, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28759054/the-association-between-retinal-vein-pulsation-pressure-and-optic-disc-haemorrhages-in-glaucoma
#12
Dong An, Philip House, Christopher Barry, Andrew Turpin, Allison M McKendrick, Balwantray C Chauhan, Siobhan Manners, Stuart L Graham, Dao-Yi Yu, William H Morgan
PURPOSE: To explore the potential relationship between optic disc haemorrhage, venous pulsation pressure (VPP), ocular perfusion pressures and visual field change in glaucomatous and glaucoma suspect eyes. MATERIALS AND METHODS: This prospective observational study examined 155 open angle glaucoma or glaucoma suspect eyes from 78 patients over 5 years. Patients were followed with 3 monthly non-mydriatic disc photographs, 6 monthly standard automated perimetry and annual ophthalmodynamometry...
2017: PloS One
https://www.readbyqxmd.com/read/28756059/spinenet-automated-classification-and-evidence-visualization-in-spinal-mris
#13
Amir Jamaludin, Timor Kadir, Andrew Zisserman
The objective of this work is to automatically produce radiological gradings of spinal lumbar MRIs and also localize the predicted pathologies. We show that this can be achieved via a Convolutional Neural Network (CNN) framework that takes intervertebral disc volumes as inputs and is trained only on disc-specific class labels. Our contributions are: (i) a CNN architecture that predicts multiple gradings at once, and we propose variants of the architecture including using 3D convolutions; (ii) showing that this architecture can be trained using a multi-task loss function without requiring segmentation level annotation; and (iii) a localization method that clearly shows pathological regions in the disc volumes...
July 21, 2017: Medical Image Analysis
https://www.readbyqxmd.com/read/28743877/chronic-activation-of-jnk-jak-stat-and-oxidative-stress-signalling-causes-the-loser-cell-status
#14
Iwo Kucinski, Michael Dinan, Golnar Kolahgar, Eugenia Piddini
Cell competition is a form of cell interaction that causes the elimination of less fit cells, or losers, by wild-type (WT) cells, influencing overall tissue health. Several mutations can cause cells to become losers; however, it is not known how. Here we show that Drosophila wing disc cells carrying functionally unrelated loser mutations (Minute and mahjong) display the common activation of multiple stress signalling pathways before cell competition and find that these pathways collectively account for the loser status...
July 26, 2017: Nature Communications
https://www.readbyqxmd.com/read/28733449/mitochondrial-function-in-engineered-cardiac-tissues-is-co-regulated-by-extracellular-matrix-elasticity-and-tissue-alignment
#15
Davi Marco Lyra-Leite, Allen Mariano Andres, Andrew Patrick Petersen, Nethika Ruvini Ariyasinghe, Nathan Cho, Jezell Athena Lee, Roberta A Gottlieb, Megan L McCain
Mitochondria in cardiac myocytes are critical for generating ATP to meet the high metabolic demands associated with sarcomere shortening. Distinct remodeling of mitochondrial structure and function occur in cardiac myocytes in both developmental and pathological settings. However, the factors that underlie these changes are poorly understood. Because remodeling of tissue architecture and extracellular matrix (ECM) elasticity are also hallmarks of ventricular development and disease, we hypothesize that these environmental factors regulate mitochondrial function in cardiac myocytes...
July 21, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28727859/space-flight-associated-neuro-ocular-syndrome
#16
Andrew G Lee, Thomas H Mader, C Robert Gibson, William Tarver
New and unique physiologic and pathologic systemic and neuro-ocular responses have been documented in astronauts during and after long-duration space flight. Although the precise cause remains unknown, space flight-associated neuro-ocular syndrome (SANS) has been adopted as an appropriate descriptive term. The Space Medicine Operations Division of the US National Aeronautics and Space Administration (NASA) has documented the variable occurrence of SANS in astronauts returning from long-duration space flight on the International Space Station...
July 20, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28718168/higher-reoperation-rate-following-cervical-disc-replacement-in-a-retrospective-long-term-comparative-study-of-715-patients
#17
Martin Skeppholm, Thomas Henriques, Tycho Tullberg
PURPOSE: To evaluate rates of secondary surgical interventions in a cohort treated with fusion (ACDF), artificial disc replacement (ADR) or a posterior surgical procedure (PP) because of a cervical degenerative pathology. METHODS: 715 patients treated with any primary cervical surgical intervention between the years 2000 and 2010 were retrospectively evaluated regarding frequency of secondary surgery between the years 2000 and 2015, thus giving a follow-up time of minimum 5 years...
July 17, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28717139/relationship-between-retinal-inner-nuclear-layer-thickness-and-severity-of-visual-field-loss-in-glaucoma
#18
Eun Kyoung Kim, Hae-Young Lopilly Park, Chan Kee Park
Glaucoma is a disease characterized by pathologic changes in inner retinal layers, which are comprised of retinal ganglion cells (RGCs). As retinal ganglion cells (RGCs) cross over other retinal neurons that are connected by synapses, it is meaningful to investigate the outer retinal changes in glaucoma. We evaluated the association between thicknesses of segmented retinal layers in macular region and severity of visual field loss in open-angle glaucoma (OAG). This study involved 103 glaucomatous eyes. Retinal nerve fiber layer (RNFL), ganglion cell layer (GCL), inner plexiform layer (IPL), inner nuclear layer (INL), outer plexiform layer (OPL), and outer nuclear layer (ONL) thicknesses were measured at the macular level using the Spectral-domain optical coherence tomography with segmentation software...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28714016/elastin%C3%A2-derived-peptides-are-involved-in-the-processes-of-human-temporomandibular-disorder-by-inducing-inflammatory-responses-in-synovial-cells
#19
Kazuhiko Kobayashi, Rei Jokaji, Mayuko Miyazawa-Hira, Shigeyuki Takatsuka, Akira Tanaka, Kazuhiro Ooi, Hiroyuki Nakamura, Shuichi Kawashiri
Temporomandibular joint dysfunction (TMD) is a collection of clinical symptoms that involve masticatory muscles and the temporomandibular joint (TMJ). Common symptoms include limited jaw motion and joint sound/pain, along with TMJ disc displacement. TMD is frequently associated with synovitis, a chronic inflammation of the synovium. Fibroblast‑like synovial cells have been identified to produce several inflammatory mediators and may have an important role in the progression of TMJ inflammation. Degradation of the extracellular matrix molecule elastin may lead to the release of bioactive peptides...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713050/the-biomechanical-impact-of-the-facet-tropism-on-the-intervertebral-disc-and-facet-joints-in-the-cervical-spine
#20
Xin Rong, Beiyu Wang, Chen Ding, Yuxiao Deng, Hua Chen, Yang Meng, Weijie Yan, Hao Liu
BACKGROUND CONTEXT: The facet tropism is defined as the angular difference between the left and right facet orientation. The facet tropism was suggested to be associated with the disc degeneration and facet degeneration in the lumbar spine. However, little is known about the relationship between the facet tropism and pathological changes in the cervical spine and the mechanism behind. PURPOSE: This study was conducted to investigate the biomechanical impact of the facet tropism on the intervertebral disc and facet joints...
July 13, 2017: Spine Journal: Official Journal of the North American Spine Society
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