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https://www.readbyqxmd.com/read/28339989/pain-management-strategies-and-health-care-use-in-community-dwelling-individuals-living-with-chronic-pain
#1
Elizabeth G Mann, Ana Johnson, Ian Gilron, Elizabeth G VanDenKerkhof
Objective. : To describe factors associated with high clinic and emergency room (ER) use among individuals with chronic pain. Design. : This study is part of a larger cross-sectional survey on the epidemiology of chronic pain in Canada. The current analysis was guided by the Andersen-Newman Service Utilization Model. Methods. : Respondents (N = 702) were grouped into high (top 10%) and low (bottom 90%) users based on the number of visits made to clinics and ERs over the past year...
March 3, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28339439/dezocine-antagonizes-morphine-analgesia-upon-simultaneous-administration-in-rodent-models-of-acute-nociception
#2
Na-Na Li, Ya-Qin Huang, Ling-Er Huang, Shao-Hui Guo, Maxwell R Shen, Chen-Ling Guo, Sheng-Mei Zhu, Yong-Xing Yao
BACKGROUND: Dezocine is a powerful analgesic that can be less addictive than morphine, yet how the two drugs interact in vivo is poorly understood. Here we administered dezocine alone or in combination with morphine to different acute nociception paradigms to explore the interactions of the 2 drugs upon co-administration. OBJECTIVE: To evaluate how dezocine interacts with morphine in different acute nociception paradigms. STUDY DESIGN: Laboratory animal study...
March 2017: Pain Physician
https://www.readbyqxmd.com/read/28335291/multispectral-emissions-of-lanthanide-doped-gadolinium-oxide-nanophosphors-for-cathodoluminescence-and-near-infrared-upconversion-downconversion-imaging
#3
Doan Thi Kim Dung, Shoichiro Fukushima, Taichi Furukawa, Hirohiko Niioka, Takumi Sannomiya, Kaori Kobayashi, Hiroshi Yukawa, Yoshinobu Baba, Mamoru Hashimoto, Jun Miyake
Comprehensive imaging of a biological individual can be achieved by utilizing the variation in spatial resolution, the scale of cathodoluminescence (CL), and near-infrared (NIR), as favored by imaging probe Gd₂O₃ co-doped lanthanide nanophosphors (NPPs). A series of Gd₂O₃:Ln(3+)/Yb(3+) (Ln(3+): Tm(3+), Ho(3+), Er(3+)) NPPs with multispectral emission are prepared by the sol-gel method. The NPPs show a wide range of emissions spanning from the visible to the NIR region under 980 nm excitation. The dependence of the upconverting (UC)/downconverting (DC) emission intensity on the dopant ratio is investigated...
September 6, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28335035/a-novel-cisd2-mutation-associated-with-a-classical-wolfram-syndrome-phenotype-alters-ca2-homeostasis-and-er-mitochondria-interactions
#4
Cécile Rouzier, David Moore, Cécile Delorme, Sandra Lacas-Gervais, Samira Ait-El-Mkadem, Konstantina Fragaki, Florence Burté, Valérie Serre, Sylvie Bannwarth, Annabelle Chaussenot, Martin Catala, Patrick Yu-Wai-Man, Véronique Paquis-Flucklinger
Wolfram syndrome (WS) is progressive neurodegenerative disease characterized by early-onset optic atrophy and diabetes mellitus, which can be associated with more extensive central nervous system and endocrine complications. The majority of patients harbour pathogenic WFS1 mutations, but recessive mutations in a second gene, CISD2, have been described in a small number of families with Wolfram syndrome type 2 (WFS2). The defining diagnostic criteria for WFS2 also consist of optic atrophy and diabetes mellitus, but unlike WFS1, this phenotypic subgroup has been associated with peptic ulcer disease and an increased bleeding tendency...
March 6, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28334996/amelogenesis-imperfecta-caused-by-n-terminal-enamelin-point-mutations-in-mice-and-men-is-driven-by-endoplasmic-reticulum-stress
#5
Steven J Brookes, Martin J Barron, Claire E L Smith, James A Poulter, Alan J Mighell, Chris F Inglehearn, Catriona J Brown, Helen Rodd, Jennifer Kirkham, Michael J Dixon
"Amelogenesis imperfecta" (AI) describes a group of inherited diseases of dental enamel that have major clinical impact. Here, we identify the aetiology driving AI in mice carrying a p.S55I mutation in enamelin; one of the most commonly mutated proteins underlying AI in humans. Our data indicate that the mutation inhibits the ameloblast secretory pathway leading to ER stress and an activated unfolded protein response (UPR). Initially, with the support of the UPR acting in pro-survival mode, Enamp.S55I heterozygous mice secreted structurally normal enamel...
March 11, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28334962/exposure-to-fictional-medical-television-and-health-a-systematic-review
#6
Beth L Hoffman, Ariel Shensa, Charles Wessel, Robert Hoffman, Brian A Primack
Fictional medical television programs have long been a staple of television programming, and they remain popular today. We aimed to examine published literature assessing the influence of medical television programs on health outcomes. We conducted systematic literature searches in PubMed, PsychINFO and CINAHL. Selected studies had to be scholarly research, to involve exposure to fictionalized medical television programming, and to assess associations between exposures and outcomes. Of 3541 unique studies identified, nineteen met selection criteria...
March 14, 2017: Health Education Research
https://www.readbyqxmd.com/read/28334489/ce-iv-gd-iii-mixed-oxides-as-hosts-for-er-iii-based-upconversion-phosphors
#7
Cecilia Sorbello, Petra Gross, Cristian A Strassert, Matías Jobbágy, Beatriz C Barja
A family of Er(III) and Er(III) -Yb(III) based nanophosphors, hosted in monophasic oxidic Ce(IV) -Gd(III) binary solid solutions, was prepared. The samples were formulated with a constant Er(III) content as the activator, with the eventual addition of Yb(III) as a sensitizer. The amorphous Ce0.94-x Gdx Er0.06 (OH)CO3 ⋅H2 O and Ce0.94-x Gdx Er0.05 Yb0.01 (OH)CO3 ⋅H2 O precursors were prepared by following the urea method to obtain monodispersed spheres of tunable size ranging from 30 to 450 nm. After being decomposed at 1273 K under an atmosphere of air, the precursors of 200 nm in diameter evolved into monophasic polycrystalline particles preserving the parent shape and size...
March 23, 2017: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/28334112/human-mitochondrial-pyrroline-5-carboxylate-reductase-1-promotes-invasiveness-and-impacts-survival-in-breast-cancers
#8
Jiefeng Ding, Mei-Ling Kuo, Leila Su, Lijun Xue, Frank Luh, Hang Zhang, Jianghai Wang, Tiffany G Lin, Keqiang Zhang, Peiguo Chu, Shu Zheng, Xiyong Liu, Yun Yen
Human mitochondrial pyrroline-5-carboxylate reductase (PYCR) is a house keeping enzyme that catalyzes the reduction of ?1-pyrroline-5-carboxylate (P5C) to proline. This enzymatic cycle plays pivotal roles in amino acid metabolism, intracellular redox potential, and mitochondrial integrity. Here, we hypothesize that PYCR1 might be a novel prognostic biomarker and therapeutic target for breast cancer. In this study, breast cancer tissue samples were obtained from Zhejiang University (ZJU set). Immunohistochemistry analysis was performed to detect the protein level of PYCR1, and Kaplan-Meier and Cox proportional analyses were employed in this outcome study...
February 24, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28333977/transition-into-inflammatory-cancer-associated-adipocytes-in-breast-cancer-microenvironment-requires-microrna-regulatory-mechanism
#9
Jiwoo Lee, Bok Sil Hong, Han Suk Ryu, Han-Byoel Lee, Minju Lee, In Ae Park, Jisun Kim, Wonshik Han, Dong-Young Noh, Hyeong-Gon Moon
The role of adipocytes in cancer microenvironment has gained focus during the recent years. However, the characteristics of the cancer-associated adipocytes (CAA) in human breast cancer tissues and the underlying regulatory mechanism are not clearly understood. We reviewed pathology specimens of breast cancer patients to understand the morphologic characteristics of CAA, and profiled the mRNA and miRNA expression of CAA by using indirect co-culture system in vitro. The CAAs in human breast cancers showed heterogeneous topographic relationship with breast cancer cells within the breast microenvironment...
2017: PloS One
https://www.readbyqxmd.com/read/28333839/evidence-for-increased-response-to-induced-endoplasmic-reticulum-stress-in-myeloid-cells-in-acquired-aplastic-anemia
#10
Alpa Sidhu, Michael U Callaghan, Manisha S Gadgeel, Steven A Buck, Andrew M Fribley, Süreyya Savaşan
Autoimmune response targeting the hematopoietic stem cells highlights the current understanding of acquired aplastic anemia (AAA) pathogenesis. Upregulation of the unfolded protein response is the cell's rejoinder to a variety of stresses, which either result in restoring homeostasis or cell death by increased expression of the transcription factor C/EBP homologous protein. We hypothesized that there is an inherent increased sensitivity to various cellular stressors, including the ones that target endoplasmic reticulum (ER) in AAA leading to a decreased proliferation and potentially contributing to susceptibility to autologous cytotoxicity...
April 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28333592/dc-algorithm-for-extended-robust-support-vector-machine
#11
Shuhei Fujiwara, Akiko Takeda, Takafumi Kanamori
Nonconvex variants of support vector machines (SVMs) have been developed for various purposes. For example, robust SVMs attain robustness to outliers by using a nonconvex loss function, while extended [Formula: see text]-SVM (E[Formula: see text]-SVM) extends the range of the hyperparameter by introducing a nonconvex constraint. Here, we consider an extended robust support vector machine (ER-SVM), a robust variant of E[Formula: see text]-SVM. ER-SVM combines two types of nonconvexity from robust SVMs and E[Formula: see text]-SVM...
March 23, 2017: Neural Computation
https://www.readbyqxmd.com/read/28333162/the-endoplasmic-reticulum-chaperone-grp78-bip-modulates-prion-propagation-in-vitro-and-in-vivo
#12
Kyung-Won Park, Gyoung Eun Kim, Rodrigo Morales, Fabio Moda, Ines Moreno-Gonzalez, Luis Concha-Marambio, Amy S Lee, Claudio Hetz, Claudio Soto
Prion diseases are fatal neurodegenerative disorders affecting several mammalian species, characterized by the accumulation of the misfolded form of the prion protein, which is followed by the induction of endoplasmic reticulum (ER) stress and the activation of the unfolded protein response (UPR). GRP78, also called BiP, is a master regulator of the UPR, reducing ER stress levels and apoptosis due to an enhancement of the cellular folding capacity. Here, we studied the role of GRP78 in prion diseases using several in vivo and in vitro approaches...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28333149/upregulation-of-mir-665-promotes-apoptosis-and-colitis-in-inflammatory-bowel-disease-by-repressing-the-endoplasmic-reticulum-stress-components-xbp1-and-ormdl3
#13
Manying Li, Shenghong Zhang, Yun Qiu, Yao He, Baili Chen, Ren Mao, Yi Cui, Zhirong Zeng, Minhu Chen
MicroRNAs are critical post-transcriptional regulators of gene expression and key mediators of pathophysiology of inflammatory bowel disease (IBD). This study is aimed to study the role of miR-665 in the progression of IBD. Real-time PCR analysis was used to determine miR-665 expression in 89 freshly isolated IBD samples and dextran sulfate sodium (DSS)-induced colonic mucosal tissues. The role of miR-665 in inducing apoptosis and colitis were examined by Annexin V, TUNEL (terminal deoxynucleotidyl transferase dUTP nick-end labeling) staining, colony formation in vitro and DSS-induced colitis mice model in vivo...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28333124/bap31-is-involved-in-t-cell-activation-through-tcr-signal-pathways
#14
Kunwei Niu, Jialin Xu, Yuhua Cao, Yue Hou, Mu Shan, Yanqing Wang, Yang Xu, Mingyi Sun, Bing Wang
BAP31 is a ubiquitously expressed endoplasmic reticulum (ER) membrane protein. The functions of BAP31 in the immune system have not been investigated due to the lack of animal models. Therefore we created a BAP31 conditional knockdown mouse by performing a knockdown of BAP31 in the thymus. In doing so, we demonstrate that the maturation of T cells is normal but the number of T cells is less in the thymus of the knockout mouse. In addition, the spleen and lymph nodes of peripheral immune organs contained a lesser proportion of the mature T cells in the thymus specific BAP31 knockout mice...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28332870/changes-in-the-level-of-immunoglobulins-and-cd4-cd8-ratio-in-young-and-aged-mice-with-estradiol-deficiency
#15
Ming-Jun Shao, Yi-Jun Zhu, Ying-Er Qiu, Min Hu, Yun-Qin He
Studies demonstrated that deficiency in 17β-estradiol (E2) in postmenopausal women influences their immune system. However, few studies have reported alterations in immunologic presentation during nonnatural menopause in young females. Here we compared the differences in immune response between young C57BL/6N mice with surgical or medical variectomy and aged C57BL/6N mice with the common feature of E2 deficiency following Con A stimulation. We observed inverted CD4/CD8 ratios in the aged group and apparent reduced production of serum immunoglobin (Ig)G, IgA, and IgM in the surgical group, whereas changes in immune parameters in the medical group were moderate...
April 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28332669/multiple-imaging-and-excellent-anticancer-efficiency-of-an-upconverting-nanocarrier-mediated-by-single-near-infrared-light
#16
Yan Wang, Guixin Yang, Yanli Wang, Yanping Zhao, Haizhi Jiang, Yuyan Han, Piaoping Yang
It is difficult to meet the requirements of clinical diagnosis through a single imaging technique. Similarly, satisfactory therapy efficacy is also hard to achieve by a single therapeutic modality. It is therefore highly desirable and interesting to simultaneously achieve multimodal imaging and therapies in one single structure. In this study, we developed a core-shell-satellite NaGdF4:Yb,Er,Mn,Co@mSiO2-CuS structure using up-conversion luminescent (UCL) NaGdF4:Yb,Er,Mn,Co as the core, mesoporous silica as the layer, and the photoactive CuS nanoparticles as the satellites...
March 23, 2017: Nanoscale
https://www.readbyqxmd.com/read/28332571/profiling-protein-expression-in-circulating-tumour-cells-using-microfluidic-western-blotting
#17
Elly Sinkala, Elodie Sollier-Christen, Corinne Renier, Elisabet Rosàs-Canyelles, James Che, Kyra Heirich, Todd A Duncombe, Julea Vlassakis, Kevin A Yamauchi, Haiyan Huang, Stefanie S Jeffrey, Amy E Herr
Circulating tumour cells (CTCs) are rare tumour cells found in the circulatory system of certain cancer patients. The clinical and functional significance of CTCs is still under investigation. Protein profiling of CTCs would complement the recent advances in enumeration, transcriptomic and genomic characterization of these rare cells and help define their characteristics. Here we describe a microfluidic western blot for an eight-plex protein panel for individual CTCs derived from estrogen receptor-positive (ER+) breast cancer patients...
March 23, 2017: Nature Communications
https://www.readbyqxmd.com/read/28332555/loxl2-drives-epithelial-mesenchymal-transition-via-activation-of-ire1-xbp1-signalling-pathway
#18
Eva P Cuevas, Pilar Eraso, María J Mazón, Vanesa Santos, Gema Moreno-Bueno, Amparo Cano, Francisco Portillo
Epithelial-to-Mesenchymal Transition (EMT) is a key process contributing to the aggressiveness of cancer cells. EMT is triggered by activation of different transcription factors collectively known as EMT-TFs. Different cellular cues and cell signalling networks activate EMT at transcriptional and posttranscriptional level in different biological and pathological situations. Among them, overexpression of LOXL2 (lysyl oxidase-like 2) induces EMT independent of its catalytic activity. Remarkably, perinuclear/cytoplasmic accumulation of LOXL2 is a poor prognosis marker of squamous cell carcinomas and is associated to basal breast cancer metastasis by mechanisms no yet fully understood...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28332554/fucoidan-induces-toll-like-receptor-4-regulated-reactive-oxygen-species-and-promotes-endoplasmic-reticulum-stress-mediated-apoptosis-in-lung-cancer
#19
Hsien-Yeh Hsu, Tung-Yi Lin, Mei-Kuang Lu, Pei-Ju Leng, Shu-Ming Tsao, Yu-Chung Wu
Fucoidan, a sulfated polysaccharide extracted from brown algae, exhibits anti-cancer activity. However, the effects and mechanism of fucoidan-induced apoptosis via endoplasmic reticulum (ER) stress is unclear. In this study, we demonstrated that fucoidan prevents tumorigenesis and reduces tumor size in LLC1-xenograft male C57BL/6 mice. Fucoidan induces an ER stress response by activating the PERK-ATF4-CHOP pathway, resulting in apoptotic cell death in vitro and in vivo. Furthermore, ATF4 knockdown abolishes fucoidan-induced CHOP expression and rescues cell viability...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28332400/oligonucleotide-sensor-based-on-selective-capture-of-upconversion-nanoparticles-triggered-by-target-induced-dna-inter-strand-ligand-reaction
#20
Diego Mendez-Gonzalez, Marco Laurenti, Alfonso Latorre, Álvaro Somoza, Ana Vazquez, Ana Isabel Negredo, Enrique Lopez-Cabarcos, Oscar Gómez Calderón, Sonia Melle, Jorge Rubio-Retama
We present a sensor that exploits the phenomenon of upconversion luminescence to detect the presence of specific sequences of small oligonucleotides like miRNAs among others. The sensor is based on NaYF4:Yb,Er@SiO2 nanoparticles functionalized with ssDNA that contain azide groups on the 3' ends. In the presence of a target sequence, inter-strand ligation is possible via click-reaction between one azide of the upconversion probe and a DBCO-ssDNA-biotin probe present in the solution. As result of this specific and selective process, biotin is covalently attached to the surface of the upconversion nanoparticles...
March 23, 2017: ACS Applied Materials & Interfaces
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