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N Mojzeszek, M Klodowska, W Komenda, L Stolarczyk, R Kopec, P Olko
For commissioning of a proton therapy unit depth dose distributions must be determined and introduced into the Treatment Planning System. In pencil beam scanning (PBS) technique, integral depth dose (IDD) acquisition should be performed with detector large enough to ensure entire beam laterally broadened by scattered and secondary contributions. The purpose of this article is to quantify, using measurements and Monte Carlo transport calculations, the ionization chamber's (IC) geometrical efficiency versus the chamber radius and proton beam energy...
October 11, 2017: Radiation Protection Dosimetry
Wei Guo, Bin Zhang, Yan Li, Hui-Quan Duan, Chao Sun, Yun-Qiang Xu, Shi-Qing Feng
The present study aimed to reveal the potential genes associated with the pathogenesis of intervertebral disc degeneration (IDD) by analyzing microarray data using bioinformatics. Gene expression profiles of two regions of the intervertebral disc were compared between patients with IDD and controls. GSE70362 containing two groups of gene expression profiles, 16 nucleus pulposus (NP) samples from patients with IDD and 8 from controls, and 16 annulus fibrosus (AF) samples from patients with IDD and 8 from controls, was downloaded from the Gene Expression Omnibus database...
October 9, 2017: Molecular Medicine Reports
Yanhai Xi, Tingwang Jiang, Weiheng Wang, Jiangming Yu, Yang Wang, Xueming Wu, Yunfei He
Intervertebral disc degeneration (IDD) is associated with the deterioration of nucleus pulposus (NP) cells due to hypertrophic differentiation and calcification. Emerging studies have shown that long noncoding RNAs (lncRNAs) play critical roles in the development of IDD. Using bioinformatics prediction, we hereby sought to identify the lncRNAs that regulate the expression of microRNA-146a-5p (miR-146a-5p), an IDD-related inflammatory factor. Our study demonstrated that lncRNA HCG18 acted as an endogenous sponge to down-regulate miR-146a-5p expression in the NP cells by directly binding to miR-146a-5p...
October 16, 2017: Scientific Reports
Sakineh Nouri Saeidlou, Fariba Babaei, Parvin Ayremlou, Rasoul Entezarmahdi
OBJECTIVE: Low iodine intakes are associated with goitre and other iodine-deficiency disorders (IDD) that have affected billions of people worldwide. We aimed to assess total goitre rate (TGR) and urinary iodine concentration (UIC) in schoolchildren between 2007 and 2015, percentage of iodized salt consumption by households, and salt iodine content at production, distribution and household levels in north-west Iran. Design/Setting/Subjects UIC assessed among schoolchildren in nine consecutive years; 240 schoolchildren aged 8-10 years selected by systematic random sampling each year in the West Azerbaijan Province...
October 16, 2017: Public Health Nutrition
Faridullah, Didar Ahmad, Hina Shabbir, Toqeer Ahmed, Muhammad Irshad, Arif Alam, Asif Sardar
Iodine deficiency in soils and plants is a common problem in the hilly areas and has still been ignored. The aim of the current study is to investigate associated health issues, socio-economic characteristics and people's perception regarding iodine deficiency. Furthermore, a follow-up study was conducted to determine iodine and nutrients concentration in soil and crops at District Diamer, Gilgit-Baltistan, Pakistan. A descriptive and empirical analysis was examined. Most importantly, male was significantly observed as more affected for iodine deficiency than female, as contrary to the literature, socio-economic factors such as households' income and awareness (education) are reported as negative and significant contributor to reduce the iodine deficiency among the people irrespective of the gender...
October 12, 2017: Environmental Geochemistry and Health
Takeshi Oichi, Yuki Taniguchi, Kazuhito Soma, Song Ho Chang, Fumiko Yano, Sakae Tanaka, Taku Saito
STUDY DESIGN: Experimental study to develop a mouse model of lumbar intervertebral disc degeneration (IDD). OBJECTIVE: The aim of this study was to develop a mouse lumbar IDD model using surgically-induced instability and to compare the findings of this model to those in human IDD. SUMMARY OF BACKGROUND DATA: Previously, various kinds of inducers have been used to reproduce IDD in experimental animals; however, there is yet no standard mouse lumbar IDD model without direct injury to intervertebral disc...
October 9, 2017: Spine
O Weisman, R Feldman, M Burg-Malki, M Keren, R Geva, G Diesendruck, D Gothelf
BACKGROUND: Numerous studies have assessed the socio-cognitive profile in Williams syndrome (WS) and, independently, in 22q11.2 deletion syndrome (22q11.2DS). Yet, a cross-syndrome comparison of these abilities between individuals with these two syndromes with known social deficits has not been conducted. METHODS: Eighty-two children participated in four study groups: WS (n = 18), 22q112.DS (n = 24), age-matched individuals with idiopathic developmental disability (IDD; n = 20) and typically developing (TD) controls (n = 20)...
October 8, 2017: Journal of Intellectual Disability Research: JIDR
Fei Zou, Zhiwen Ding, Jianyuan Jiang, Feizhou Lu, Xinlei Xia, Xiaosheng Ma
Circular RNAs (circRNAs) are relatively recently identified noncoding RNAs that are ubiquitously expressed in human tissues and serve key functions in regulating gene expression. However, few studies have focused on human intervertebral disc degeneration (IDD) circRNAs, and the potential role of circRNAs in IDD has not been described in detail. In the present study, circRNA expression data was downloaded from the Gene Expression Omnibus database, and circRNAs in the human intervertebral disc were classified according to their length, indicating their uniform distribution of circRNAs of different lengths...
October 4, 2017: Molecular Medicine Reports
Carly B Gilson, Lauren K Bethune, Erik W Carter, Elise D McMillan
The importance of supporting families with members who have intellectual and developmental disabilities (IDD) is well-established in both policy and research. Yet little is known about how familiar parents are with existing resources (e.g., programs, supports, trainings), what information they would consider most helpful, and how they would prefer to access resources. Our study examined the resource needs of 1,738 parents of children and adults with IDD in the state of Tennessee. Most parents reported limited familiarity with programs across every domain (e...
October 2017: Intellectual and Developmental Disabilities
Carli Friedman
Medicaid Home and Community Based Services (HCBS) 1915(c) waivers are the largest source of funding for the long term services and supports of people with intellectual and developmental disabilities (IDD). National-level analyses of HCBS IDD waivers are crucial because of the large variance across states, the recent CMS rule and regulation changes (CMS 2249-F/2296-F), and the ever changing economic and political landscape. Therefore, the aim of this study was to examine state waiver priorities for people with IDD...
October 2017: Intellectual and Developmental Disabilities
Mary Ann Clute
This grounded theory study gathered descriptions the bereavement experience for adults with intellectual disabilities (IDD) through the eyes and voices of a small sample of grief counselors. The counselors described bereaved adults with IDD as individuals who faced potentially heightened effects of the broken attachment bonds, increased risk of coping obstacles, long histories of unrecognized losses, and disenfranchised grief. The participants described bereaved adults with IDD (who sought treatment) as getting pushed to the sidelines to deal with their losses in isolation and confusion...
November 2017: Omega
Wei Wang, Jin Hou, Deyong Lv, Wen Liang, Xinqing Jiang, Hongbin Han, Xianyue Quan
The present study investigated the application of the T1ρ and T2 relaxation mapping magnetic resonance imaging (MRI) and diffusion-weighted imaging (DWI) in the evaluation of intervertebral disc degeneration (IDD). A total of 93 asymptomatic subjects were imaged with T1ρ and T2 mapping, as well as DWI. Pfirrmann grading was performed and correlation analysis was conducted for T1ρ, T2 and DWI results with the grading results and age. Pfirrmann grading indicated 69 cases of grade I, 240 cases of grade II, 101 cases of grade III, 43 cases of grade IV and 12 cases of grade V...
September 2017: Experimental and Therapeutic Medicine
Bo Tao, Jiaoyu Yi, Changzhao Huang, Wang Xu, Chao Qin, Lei Chen, Jincai Chen, Yan Gao, Ruiying Wang
The aberrant proliferation of nucleus pulposus (NP) cells has been reported to be implicated in the pathogenesis of intervertebral disc degeneration (IDD). Previous studies have demonstrated that microRNAs (miRNAs), which are a group of small noncoding RNAs, are critical regulators of cell proliferation in various pathologies. However, the role of miRNA‑96 (miR‑96) in the proliferation of NP cells remains to be determined. In the present study, reverse transcription‑quantitative polymerase chain reaction was used to investigate the expression of miR‑96 in NP tissues from patients with IDD and healthy tissues from patients with traumatic lumbar fracture as the control...
November 2017: Molecular Medicine Reports
Hui Lin, Xuan Ma, Bai-Chuan Wang, Lei Zhao, Jian-Xiang Liu, Fei-Fei Pu, Yi-Qiang Hu, Hong-Zhi Hu, Zeng-Wu Shao
AIMS: Edaravone is a strong free radical scavenger most used for treating acute ischemic stroke. In this study we investigated the protective effects and underlying mechanisms of edaravone on compression-induced damage in rat nucleus pulposus (NP) cells. MATERIALS AND METHODS: Cell viability was determined using MTT assay methods. NP cell apoptosis was measured by Hoechst 33,258 staining and Annexin V/PI double staining. Intracellular reactive oxygen species (ROS), mitochondrial membrane potential (MMP), and intracellular calcium ([Ca(2+)]i) were determined by fluorescent probes DCFH-DA, JC-1 and Fluo-3/AM, respectively...
September 20, 2017: Life Sciences
Enshi Nakayama, Taro Matsumoto, Tomohiko Kazama, Koichiro Kano, Yasuaki Tokuhashi
Our group has reported that mature adipocyte-derived dedifferentiated fat (DFAT) cells show multilineage differentiation potential similar to that observed in mesenchymal stem cells. In the present study, we examined whether DFAT cell transplantation could contribute to intervertebral disc regeneration using a rat intervertebral disc degeneration (IDD) model. The IDD was created in Sprague-Dawley rats by puncturing at level of caudal intervertebral disc under fluoroscopy. One week after injury, rat DFAT cells (5 × 10(4), DFAT group, n = 13) or phosphate-buffered saline (PBS, control group, n = 13) were injected into the intervertebral disc...
November 18, 2017: Biochemical and Biophysical Research Communications
Katarzyna Jezierska-Wozniak, Monika Barczewska, Aleksandra Habich, Pawel Wojtacha, Wanda Badowska, Wojciech Maksymowicz, Joanna Wojtkiewicz
INTRODUCTION: Factors promoting nerve cell ingrowth are considered responsible for chronic back pain resulting from the intervertebral disc degeneration (IDD). One of the recent exploratory IDD treatments is stem cell transplantation therapy. The CD271 (low-affinity nerve growth factor receptor) has been identified as a marker of the most homogeneous mesenchymal stem cell (MSC) subset. It is capable of promoting differentiation along adipogenic, osteogenic and chondrogenic lineages and producing significantly higher levels of cytokines as compared to the total population of plastic adherence-mesenchymal stem cells (PA-MSCs)...
September 19, 2017: Folia Histochemica et Cytobiologica
Zhi-Hua Ouyang, Wen-Jun Wang, Yi-Guo Yan, Bing Wang, Guo-Hua Lv
Intervertebral disc degeneration (IDD) is thought to be the primary cause of low back pain, a severe public health problem worldwide. Current therapy for IDD aims to alleviate the symptoms and does not target the underlying pathological alternations within the disc. Activation of the phosphatidylinositol 3-kinase (PI3K)/Akt pathway protects against IDD, which is attributed to increase of ECM content, prevention of cell apoptosis, facilitation of cell proliferation, induction or prevention of cell autophagy, alleviation of oxidative damage, and adaptation of hypoxic microenvironment...
August 22, 2017: Oncotarget
Francesca Gilli, Libin Li, Darlene B Royce, Krista D DiSano, Andrew R Pachner
Teriflunomide is an oral therapy approved for the treatment of relapsing remitting multiple sclerosis (MS), showing both anti-inflammatory and antiviral properties. Currently, it is uncertain whether one or both of these properties may explain teriflunomide's beneficial effect in MS. Thus, to learn more about its mechanisms of action, we evaluated the effect of teriflunomide in the Theiler's encephalomyelitis virus-induced demyelinating disease (TMEV-IDD) model, which is both a viral infection and an excellent model of the progressive disability of MS...
September 14, 2017: Journal of Neurovirology
Z Y Sun, P Yan, S J Wang, H Liang, Y Li, D G Wang, J W Tian
Objective: To investigate the gene expression profiles of long non-coding RNAs (lncRNA)in human degenerated intervertebral disc degeneration (IDD). Methods: An lncRNA-mRNA microarray analysis of human nucleus pulposus (NP) was employed. Bioinformatics prediction was also applied to delineate the functional roles of the differentially expressed lncRNAs. Several lncRNAs and mRNAs were chosen for quantitative real-time PCR (qRT-PCR) validation. Results: A total of 1 570 lncRNAs expressed in degenerate group compared with the nondegenerate group...
September 5, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
P Holak, J Głodek, M Mieszkowska, M Jałyński, Y Zhalniarovich, Z Adamiak
Magnetic resonance imaging (MRI) is a method of choice in diagnosing nervous system disorders. This paper presents the results of a study where selected segments of the canine spine were examined by low-field MRI in 112 patients. Images of pathological changes were obtained in spin echo (SE), fast spin echo (FSE) and hybrid contrast enhancement (3D HYCE) sequences. The cervical region of the spinal cord (C1-C5) was examined in 32 patients, the cervicothoracic region (C6-Th2)- in 14 patients, the thoracolumbar region (Th3-L3) - in 23 patients, and the lumbosacral region (L4-S3) - in 43 patients...
March 1, 2017: Polish Journal of Veterinary Sciences
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