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https://www.readbyqxmd.com/read/28514734/inflammatory-microrna-194-and-515-attenuate-the-biosynthesis-of-chondroitin-sulfate-during-human-intervertebral-disc-degeneration
#1
Bo Hu, Chen Xu, Ye Tian, Changgui Shi, Ying Zhang, Lianfu Deng, Hongyu Zhou, Peng Cao, Huajiang Chen, Wen Yuan
Intervertebral disc degeneration (IDD) is characterized by dehydration and loss of extracellular matrixes in the nucleus pulposus region. Chondroitin sulfate has been found to be the water-binding molecule that played a key role in IDD. Although investigators have reported that inflammatory cytokines are involved in the reduction of chondroitin sulfate in IDD, but the underlying mechanism is unrevealed. Since chondroitin sulfate synthesis is controlled by chondroitin sulfate glycosyltransferases CHSY-1/2/3 and CSGALNACT-1/2, their functional role and regulatory mechanism in IDD is not fully studied...
May 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28459941/german-adjuvant-intergroup-node-positive-study-gain-a-phase-iii-trial-comparing-two-dose-dense-regimens-iddepc-vs-ddec-pwx-in-high-risk-early-breast-cancer-patients
#2
V Moebus, G von Minckwitz, C Jackisch, H-J Lück, A Schneeweiss, H Tesch, D Elling, N Harbeck, B Conrad, T Fehm, J Huober, V Müller, I Bauerfeind, A du Bois, S Loibl, V Nekljudova, M Untch, C Thomssen
Background: Dose-dense (dd) regimens are one of the preferred options for the adjuvant treatment of breast cancer patients with intermediate to high risk. The GAIN trial aimed at optimizing intense dose-dense (idd) strategies by evaluating drug combinations and the addition of capecitabine. Patients and Methods: Women (aged 18 and biologically <65 years) with histologically involved axillary lymph nodes were randomly assigned to receive three courses each of epirubicin (E) 150mg/m 2 , paclitaxel (P) 225mg/m 2 and cyclophosphamide (C) 2500mg/m 2 (reduced to 2000mg/m 2 after recruitment of 1200 patients) q2w intravenously (i...
April 28, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28458159/celastrol-reduces-il-1%C3%AE-induced-matrix-catabolism-oxidative-stress-and-inflammation-in-human-nucleus-pulposus-cells-and-attenuates-rat-intervertebral-disc-degeneration-in-vivo
#3
Jian Chen, Jun Xuan, Yun-Tao Gu, Ke-Si Shi, Jun-Jun Xie, Jiao-Xiang Chen, Zeng-Ming Zheng, Yu Chen, Xi-Bang Chen, Yao-Sen Wu, Xiao-Lei Zhang, Xiang-Yang Wang
Celastrol has been reported to exert therapeutic potential on pro-inflammatory diseases including asthma, Crohn's disease, arthritis and neurodegenerative disorders via inhibiting NF-κB pathway. While the effect of celastrol on intervertebral disc degeneration (IDD), which is also a pro-inflammatory disease, remains unknown. In this study, we evaluated the effect of celastrol on IDD in IL-1β treated human nucleus pulposus cells in vitro as well as in puncture induced rat IDD model in vivo. Our results showed that celastrol reduced the expression of catabolic genes (MMP-3, 9, 13, ADAMTS-4, 5), oxidative stress factors (COX-2, iNOS) and pro-inflammatory factors (IL-6, TNF-a) induced by IL-1β in nucleus pulposus cells, also phosphorylation of IκBα and p65 were attenuated by celastrol, indicating NF-κB pathway was inhibited by celastrol in nucleus pulposus cells...
April 27, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28452087/cytotoxic-cd8-t-cells-ablation-enhances-the-capacity-of-regulatory-t-cells-to-delay-viral-elimination-in-theiler-s-murine-encephalomyelitis
#4
Malgorzata Ciurkiewicz, Vanessa Herder, Muhammad Akram Khan, Ann-Kathrin Uhde, René Teich, Stephan Floess, Wolfgang Baumgärtner, Jochen Huehn, Andreas Beineke
Theiler's murine encephalomyelitis (TME) of susceptible mouse strains is a commonly used infectious animal model for multiple sclerosis. The study aim was to test the hypothesis whether cytotoxic T cell responses account for the limited impact of regulatory T cells on antiviral immunity in TME virus-induced demyelinating disease (TMEV-IDD) resistant C57BL/6 mice. TME virus-infected C57BL/6 mice were treated with (i) interleukin-2/-anti-interleukin-2-antibody-complexes to expand regulatory T cells ('Treg-expansion'), (ii) anti-CD8-antibodies to deplete cytotoxic T cells ('CD8-depletion') or (iii) with a combination of Treg-expansion and CD8-depletion ('combined treatment') prior to infection...
April 27, 2017: Brain Pathology
https://www.readbyqxmd.com/read/28441792/urinary-iodine-concentrations-in-cancer-patients
#5
Saeed Kargar, Seyed Mostafa Shiryazdi, Seyed Reza Atashi, Hossein Neamatzadeh, Mahdieh Kamali
Background: It has been suggested that incidence of some cancers, especially examples in the breast and stomach may be influenced by the iodine intake. However, only few studies are available at present. Therefore, we have conducted the present assessment of iodine status in Iranian patients diagnosed with a malignancy. Materials and Methods: This cross-sectional study was conducted in 85 patients diagnosed with different types of cancer at Shahid Sadoughi Hospital, Yazd, Iran. The method used was based on the Sandell–Kolthoff reaction...
March 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28436567/an-ultrastructural-study-of-chondroptosis-programmed-cell-death-in-degenerative-intervertebral-discs-in%C3%A2-vivo
#6
Li-Bo Jiang, Hai-Xiao Liu, Yu-Long Zhou, Sun-Ren Sheng, Hua-Zi Xu, En-Xing Xue
Apoptosis has been regarded to mediate intervertebral disc degeneration (IDD); however, the basic question of how the apoptotic bodies are cleared in the avascular intervertebral disc without phagocytes, which are essential to apoptosis, remains to be elucidated. Our goals were to investigate the ultrastructure of nucleus pulposus (NP) cells undergoing chondroptosis, a variant of apoptotic cell death, in a rabbit annular needle-puncture model of IDD. Experimental IDD was induced by puncturing discs with a 16-G needle in New Zealand rabbits...
April 24, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28433710/down-regulation-of-islet-amyloid-polypeptide-expression-induces-death-of-human-annulus-fibrosus-cells-via-mitochondrial-and-death-receptor-pathways
#7
Xinghuo Wu, Kun Wang, Wenbin Hua, Shuai Li, Xianzhe Liu, Wei Liu, Yu Song, Yukun Zhang, Zengwu Shao, Cao Yang
Islet amyloid polypeptide (IAPP) exerts its biological effects by participating in the regulation of glucose metabolism and cell apoptosis. The main goal of the present study was to investigate the expression of IAPP in degenerated intervertebral disc tissue and IAPP's modulation of extracellular matrix (ECM) catabolic and anabolic genes in human AF cells. We found that the expression of IAPP, the calcitonin receptor, and receptor activity modifying protein decreased considerably in AF cells during the progression of intervertebral disc degeneration (IDD)...
April 19, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28427710/clinical-outcomes-and-predictive-factors-related-to-good-outcomes-in-plasma-exchange-in-severe-attack-of-nmosd-and-long-extensive-transverse-myelitis-case-series-and-review-of-the-literature
#8
Saharat Aungsumart, Metha Apiwattanakul
OBJECTIVE: To investigate the predictive factors associated with good outcomes of plasma exchange in severe attacks through neuromyelitis optica spectrum disorder (NMOSD) and long extensive transverse myelitis (LETM). In addition, to review the literature of predictive factors associated with the good outcomes of plasma exchange in central nervous system inflammatory demyelinating diseases (CNS IDDs). METHODS: Retrospective study in 27 episodes of severe acute attacks myelitis and optic neuritis in 24 patients, including 20 patients with NMOSD seropositive, 1 patient with NMOSD seronegative and 3 patients with LETM...
April 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28427186/microrna-494-promotes-apoptosis-and-extracellular-matrix-degradation-in-degenerative-human-nucleus-pulposus-cells
#9
Liang Kang, Cao Yang, Yu Song, Kangcheng Zhao, Wei Liu, Wenbin Hua, Kun Wang, Ji Tu, Shuai Li, Huipeng Yin, Yukun Zhang
PURPOSE: This study investigated the expression and function of the microRNA-494 in intervertebral disc degeneration (IDD). RESULTS: MicroRNA-494 expression was upregulated during IDD progression; its overexpression increased the expression of ECM catabolic factors such as matrix metalloproteinase and A disintegrin and metalloproteinase with thrombospondin motif in NP cells while decreasing that of anabolic genes such as type II collagen and aggrecan; it also induced the apoptosis of NP cells, as determined by flow cytometry...
April 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422626/navigating-the-hidden-curriculum-of-higher-education-for-postsecondary-students-with-intellectual-disabilities
#10
Lucretia A Berg, Tracy Jirikowic, Katie Haerling, Ginger MacDonald
Students with intellectual and/or developmental disabilities (IDD) increasingly pursue postsecondary education (PSE). Navigating the hidden curriculum-including meeting prerequisites for PSE and employment, using support systems and community transportation, and carrying out adulthood expectations-is an area of challenge. This exploratory case study examined experiences of students with IDD attending a PSE program and stakeholder perspectives. Thirty-two participants (10 students with IDD, 5 parents or guardians, 4 college administrators, 8 college instructors, 4 occupational therapists, and a transition specialist) were interviewed...
May 2017: American Journal of Occupational Therapy: Official Publication of the American Occupational Therapy Association
https://www.readbyqxmd.com/read/28422381/comparison-of-multi-institutional-varian-probeam-pencil-beam-scanning-proton-beam-commissioning-data
#11
Ulrich W Langner, John G Eley, Lei Dong, Katja Langen
PURPOSE: Commissioning beam data for proton spot scanning beams are compared for the first two Varian ProBeam sites in the United States, at the Maryland Proton Treatment Center (MPTC) and Scripps Proton Therapy Center (SPTC). In addition, the extent to which beams can be matched between gantry rooms at MPTC is investigated. METHOD: Beam data for the two sites were acquired with independent dosimetry systems and compared. Integrated depth dose curves (IDDs) were acquired with Bragg peak ion chambers in a 3D water tank for pencil beams at both sites...
April 19, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28420593/sexual-health-in-the-community-services-for-people-with-intellectual-and-developmental-disabilities
#12
Carli Friedman, Aleksa L Owen
BACKGROUND: Sexuality is a central dimension of overall health and well-being. People with intellectual and developmental disabilities (IDD) continue to experience disparities in healthcare, particularly regarding access to sexual health related services. Medicaid Home and Community-Based Services (HCBS) waivers are ideally situated to provide sexual and reproductive healthcare in accessible settings. OBJECTIVE: This preliminary study analyzed national Medicaid HCBS waivers to determine how they provide sexuality services for people with IDD...
April 6, 2017: Disability and Health Journal
https://www.readbyqxmd.com/read/28420409/assessing-the-status-of-iodine-deficiency-disorder-idd-and-associated-factors-in-wolaita-and-dawro-zones-school-adolescents-southern-ethiopia
#13
Shimelash Bitew Workie, Yemane Gebremariam Abebe, Amha Admasie Gelaye, Tefera Chane Mekonen
BACKGROUND: Iodine deficiency is the major preventable cause of irreversible mental retardation in the world. Ethiopia is a country with high prevalence of iodine deficiency disorders which continue to affect a large number of the country's population. The aim of the study was to assess the prevalence of iodine deficiency disorder in Wolaita and Dawuro zones. METHODS: A descriptive, cross-sectional study was conducted in high school and preparatory students in Wolaita and Dawuro zones between April and May 2012...
April 18, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28416438/nsaid-use-in-intervertebral-disc-degeneration-what-are-the-effects-on-matrix-homeostasis-in-vivo
#14
Nicholas Vaudreuil, Tiffany Kadow, Takashi Yurube, Robert Hartman, Kevin Ngo, Qing Dong, Pedro Pohl, J Paulo Coelho, James Kang, Nam Vo, Gwendolyn Sowa
BACKGROUND CONTEXT: Non-steroidal anti-inflammatory drugs (NSAIDs) are a widely used treatment for low back pain (LBP). Literature on NSAID use in articular cartilage has shown detrimental effects; however, minimal data exist to detail the effects of NSAIDs in intervertebral disc degeneration (IDD). As IDD is a major cause of LBP, we explored the effects of indomethacin, a commonly used NSAID, on disc matrix homeostasis in an animal model of IDD. PURPOSE: This study aimed to determine the effects of oral indomethacin administration on IDD in an in vivo rabbit model...
April 14, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28413490/noninvasive-cumulative-axial-load-may-induce-intervertebral-disc-degeneration-a-potential-rabbit-model
#15
Xuedong Bai, Deli Wang, Mingyue Zhou, Cheng Xu, Wei Li, Hui Tao, Qing He, Dike Ruan
Intervertebral disc degeneration (IDD) is considered to be the main cause of many spinal disorders; however, its underlying pathophysiology is not clearly understood. Recent studies indicate that excessive mechanical loading may serve a major role in the initiation of IDD. The aim of the present study was to explore the effect of noninvasive cumulative axial loading on the intervertebral discs of the lumbar spine using a novel rabbit model. Rabbits in the experimental group were placed into individual tubes specifically designed to force maintenance of an upright posture and were loaded with a heavy collar to increase the intradiscal pressure of their lumbar spine...
April 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28411026/drp1-mediates-compression-induced-programmed-necrosis-of-rat-nucleus-pulposus-cells-by-promoting-mitochondrial-translocation-of-p53-and-nuclear-translocation-of-aif
#16
Hui Lin, Lei Zhao, Xuan Ma, Bai-Chuan Wang, Xiang-Yu Deng, Min Cui, Song-Feng Chen, Zeng-Wu Shao
Compression-induced programmed cell death of nucleus pulposus (NP) cells is an important contributor to intervertebral disc degeneration (IDD). Dynamin-related protein 1 (Drp1), a crucial mitochondrial fission protein, triggers programmed necrosis upon cellular injury. However, limited information is available about the role of Drp1 in compression-induced programmed necrosis of NP cells. In the present study, we found that compression resulted in upregulation and mitochondrial translocation of Drp1. Inhibition of Drp1 by siRNA or mitochondrial division inhibitor 1 (mdivi-1) effectively prevented the programmed necrosis of NP cells treated with compression...
May 20, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28404230/birth-outcomes-among-us-women-with-intellectual-and-developmental-disabilities
#17
Ilhom Akobirshoev, Susan L Parish, Monika Mitra, Eliana Rosenthal
BACKGROUND: Women with intellectual and developmental disabilities (IDD) are bearing children at increasing rates. However, there is very little research about pregnancy experiences and birth outcomes among women with IDD. No studies to date have examined birth outcomes with a US population-based sample. OBJECTIVE: The main objective was to estimate the national occurrence of deliveries in women with IDD and to compare their birth outcomes to women without IDD. METHODS: We examined the 2007-2011 Nationwide Inpatient Sample of the Healthcare Cost and Utilization Project to compare birth outcomes in women with and without IDD...
April 6, 2017: Disability and Health Journal
https://www.readbyqxmd.com/read/28393436/intrathecal-pump-refills-pocket-fills-and-symptoms-of-drug-overdose-a-prospective-observational-study-comparing-the-injected-drug-volume-vs-the-drug-volume-effectively-measured-inside-the-pump
#18
Paolo Maino, Roberto S G M Perez, Eva Koetsier
OBJECTIVES: One complication associated with the refill procedure of intrathecal drug delivery systems (IDDSs) include a "pocket fill," which is the inadvertent injection of the drug into the subcutaneous space surrounding the pump. The purpose of our study was to assess the mean volume discrepancy between the injected and the effective drug volume inside the IDDS reservoir after refills that did not lead to signs of overdose and to record at which volume discrepancy symptoms of overdose were noticed...
April 10, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28392887/ros-crucial-intermediators-in-the-pathogenesis-of-intervertebral-disc-degeneration
#19
REVIEW
Chencheng Feng, Minghui Yang, Minghong Lan, Chang Liu, Yang Zhang, Bo Huang, Huan Liu, Yue Zhou
Excessive reactive oxygen species (ROS) generation in degenerative intervertebral disc (IVD) indicates the contribution of oxidative stress to IVD degeneration (IDD), giving a novel insight into the pathogenesis of IDD. ROS are crucial intermediators in the signaling network of disc cells. They regulate the matrix metabolism, proinflammatory phenotype, apoptosis, autophagy, and senescence of disc cells. Oxidative stress not only reinforces matrix degradation and inflammation, but also promotes the decrease in the number of viable and functional cells in the microenvironment of IVDs...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28379180/eliminating-iodine-deficiency-in-china-achievements-challenges-and-global-implications
#20
Dianjun Sun, Karen Codling, Suying Chang, Shubin Zhang, Hongmei Shen, Xiaohui Su, Zupei Chen, Robert W Scherpbier, Jun Yan
The prevention of iodine deficiency through salt iodization has been recognized as a global success story, and China stands at the forefront of this achievement with one of the most successful programs in the world. High level political commitment, national mandatory legislation, a state-managed edible salt industry and a complex and highly sophisticated surveillance system have facilitated the success of the program. Challenges have arisen however, including: (i) concern that adequate iodine status in pregnant women cannot be achieved without causing above adequate iodine intakes in children; (ii) declining iodine intake as a result of reductions in salt consumption and increased consumption of processed foods, which may not be made with iodized salt; (iii) the existence of areas with high iodine content in the water; and (iv) declines in household use of iodized salt due to concerns about excess iodine intake and thyroid disease...
April 5, 2017: Nutrients
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