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https://www.readbyqxmd.com/read/29778202/porcine-monocyte-derived-dendritic-cells-can-be-differentially-activated-by-vesicular-stomatitis-virus-and-its-matrix-protein-mutants
#1
Guoyan Sun, Xinkui Fang, Hao Wu, Xinchu Zhou, Yong Ke, Tao Sun
Vesicular stomatitis virus (VSV) can cause serious vesicular lesions in pigs, and the matrix (M) protein is its predominant virulence factor. Dendritic cells (DCs) act as the bridge between innate and adaptive immune responses. However, the susceptibility of porcine DCs to VSV infection and the role of M protein in modulating the function of infected DCs are still poorly defined. Thus, this study aimed to determine the ability of virulent wild-type VSV(wtVSV) and two attenuated M protein variants (VSVΔM51 and VSVMT ) to induce maturation of porcine monocyte-derived DCs (MoDCs) in vitro...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29774193/predictable-values-of-decompressive-craniectomy-in-patients-with-acute-subdural-hematoma-comparison-between-decompressive-craniectomy-after-craniotomy-group-and-craniotomy-only-group
#2
Hyunjun Kim, Sang-Jun Suh, Ho-Jun Kang, Min-Seok Lee, Yoon-Soo Lee, Jeong-Ho Lee, Dong-Gee Kang
Objective: Patients with traumatic acute subdural hematoma (ASDH) often require surgical treatment. Among patients who primarily underwent craniotomy for the removal of hematoma, some consequently developed aggressive intracranial hypertension and brain edema, and required secondary decompressive craniectomy (DC). To avoid reoperation, we investigated factors which predict the requirement of DC by comparing groups of ASDH patients who did and did not require DC after craniotomy. Methods: The 129 patients with ASDH who underwent craniotomy from September 2007 to September 2017 were reviewed...
April 2018: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/29772371/decompressive-craniectomy-for-traumatic-brain-injury-the-role-of-cranioplasty-and-hydrocephalus-on-outcome
#3
Davide Nasi, Mauro Dobran, Alessandro Di Rienzo, Lucia di Somma, Maurizio Gladi, Elisa Moriconi, Massimo Scerrati, Maurizio Iacoangeli
OBJECTIVE: After severe traumatic brain injury (sTBI) associated with uncontrollable high intracranial pressure (ICP), still today the main challenge for neurosurgeons remains to identify who may obtain benefit from decompressive craniectomy (DC) and which factors after DC influence the prognosis of these patients. The aim of this paper was to identify the pre and post-operative determinants of outcome after DC. METHODS: This retrospective study included all patients undergoing DC for sTBI from 2003 to 2011...
May 14, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29769143/clinical-outcome-of-elderly-patients-%C3%A2-70-years-with-esophageal-cancer-undergoing-definitive-or-neoadjuvant-radio-chemo-therapy-a-retrospective-single-center-analysis
#4
Franziska Walter, David Böckle, Nina-Sophie Schmidt-Hegemann, Rebecca Köpple, Sabine Gerum, Stefan Boeck, Martin Angele, Claus Belka, Falk Roeder
BACKGROUND: To analyse the outcome of elderly patients (≥70 years) with esophageal cancer treated with curative intent radio(chemo)therapy. METHODS: Fifty five patients (median 75 years) receiving curative intent radio(chemo)therapy for esophageal cancer from 1999 to 2015 were retrospectively analyzed. Most patients showed locally advanced disease (T3/4:78%, N+:58%) with squamous cell histology (74%). Charlson comorbidity score was > 1 in 27%. 48 patients (87%) received definitive treatment while 7 patients were treated neoadjuvantly...
May 16, 2018: Radiation Oncology
https://www.readbyqxmd.com/read/29764863/extracorporeal-photochemotherapy-drives-monocyte-to-dendritic-cell-maturation-to-induce-anti-cancer-immunity
#5
Alessandra Ventura, Aaron Vassall, Eve Robinson, Renata Filler, Douglas Hanlon, Katrina Meeth, Harib Ezaldein, Michael Girardi, Olga Sobolev, Marcus W Bosenberg, Richard L Edelson
Extracorporeal photochemotherapy (ECP) is a cancer immunotherapy for cutaneous T cell lymphoma (CTCL) operative in more than 350 centers worldwide. While its efficacy and favorable safety profile have driven its widespread use, elucidation of its underlying mechanism has been difficult. In this study, we identify the principal contributors to the anti-cancer immunotherapeutic effects of ECP, with the goal of enhancing potency and broadening applicability to additional malignancies. First, we scaled down the clinical ECP leukocyte-processing device to mouse size...
May 15, 2018: Cancer Research
https://www.readbyqxmd.com/read/29764769/comparison-of-computed-tomography-with-magnetic-resonance-imaging-for-imaging-based-clinical-target-volume-contours-in-cervical-cancer-brachytherapy
#6
Agnieszka Zolciak-Siwinska, Adam Kowalczyk, Katarzyna Sikorska, Michal Bijok, Wojciech Michalski, Ewelina Gruszczynska
PURPOSE: To compare CT- and MRI-based brachytherapy (BT) target volumes for patients with advanced cervical cancer so as to identify those who benefit most from MRI-based planning. We also studied how the natural mobility of the organ at risks (OARs) affects the given doses. METHODS AND MATERIALS: Subjects were 60 patients with International Federation of Gynecology and Obstetrics (FIGO) Stage IB-IVA cervical cancer. The CT high-risk clinical target volume (HR-CTV) was first delineated, then the MRI HR-CTV, with volume discrepancies calculated by subtraction...
May 12, 2018: Brachytherapy
https://www.readbyqxmd.com/read/29760123/diabetes-attributable-nursing-home-costs-for-each-u-s-state
#7
Simon J Neuwahl, Amanda A Honeycutt, Diana C Poehler, Sundar S Shrestha, Ping Zhang, Thomas J Hoerger
OBJECTIVE: To estimate the diabetes-attributable nursing home costs for each state. RESEARCH DESIGN AND METHODS: We used a diabetes-attributable fraction (AF) approach to estimate nursing home costs attributable to diabetes (in 2013 $) in aggregate and per person with diabetes in each state. We calculated the AFs as the difference in diabetes prevalence between nursing homes and the community. We used the Centers for Medicare and Medicaid's 2013-2015 Minimum Data Set to estimate the prevalence of diabetes in nursing homes and to adjust for the intensity of care among people with diabetes in nursing homes...
May 14, 2018: Diabetes Care
https://www.readbyqxmd.com/read/29757971/comparison-of-the-conventional-and-electroenhanced-direct-immersion-solid-phase-microextraction-for-sampling-of-nicotine-in-biological-fluids-of-the-human-body
#8
Sana Abdolhosseini, Ali Reza Ghiasvand, Nahid Heidari
A stainless steel fiber was made porous and adhesive by platinization and then coated by nanostructured polypyrrole (PPy), using an appropriate electrophoretic deposition (EPD) method. The morphological surface structure and functional groups of the PPy-coated fiber were studied using SEM (Scanning electron microscope) instrument. The prepared fiber was used for comparison of direct immersion (DI) and electroenhanced direct immersion solid-phase microextraction (EE-DI-SPME) of nicotine in human plasma and urine samples followed by gas chromatography flame ionization detector (GC-FID) determination...
May 14, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29755693/exosomes-in-melanoma-a-role-in-tumor-progression-metastasis-and-impaired-immune-system-activity
#9
REVIEW
Marco Tucci, Francesco Mannavola, Anna Passarelli, Luigia Stefania Stucci, Mauro Cives, Franco Silvestris
Exosomes (Exo) are small vesicles produced by melanoma cells and the accessory cells of the tumor microenvironment. They emerge via both classical and direct pathways and actively participate in tumor colonisation of distant tissues. The proteins, nucleic acids, cytokines and growth factors engulfed by Exo are transferred to recipient cells, where they drive numerous functions required for the tumor escape from immune system control and tumor progression. By positively or negatively modulating immune cell properties, Exo provoke immune suppression and, in turn, defective dendritic cell (DC) functions...
April 17, 2018: Oncotarget
https://www.readbyqxmd.com/read/29754770/skewing-effect-of-sulprostone-on-dendritic-cell-maturation-compared-with-dinoprostone
#10
Jenny Bulgarelli, Laura Fiammenghi, Serena Cassan, Anna Maria Granato, Massimiliano Petrini, Elena Pancisi, Valentina Soldati, Francesco De Rosa, Laura Ridolfi, Angela Riccobon, Massimo Guidoboni
BACKGROUND: Dendritic cells (DCs) are the most efficient antigen-presenting cells and act at the center of the immune system owing to their ability to control both immune tolerance and immunity. In cancer immunotherapy, DCs play a key role in the regulation of the immune response against tumors and can be generated ex vivo with different cytokine cocktails. METHODS: We evaluated the feasibility of dinoprostone (PGE2 ) replacement with the molecular analog sulprostone, in our good manufacturing practice (GMP) protocol for the generation of DC-based cancer vaccine...
May 10, 2018: Cytotherapy
https://www.readbyqxmd.com/read/29752021/hyperthermic-treatment-at-56-%C3%A2-c-induces-tumour-specific-immune-protection-in-a-mouse-model-of-prostate-cancer-in-both-prophylactic-and-therapeutic-immunization-regimens
#11
Francesco De Sanctis, Sara Sandri, Matteo Martini, Marta Mazzocco, Alessandra Fiore, Rosalinda Trovato, Stefano Garetto, Davide Brusa, Stefano Ugel, Silvia Sartoris
Most active cancer immunotherapies able to induce a long-lasting protection against tumours are based on the activation of tumour-specific cytotoxic T lymphocytes (CTLs). Cell death by hyperthermia induces apoptosis followed by secondary necrosis, with the production of factors named "danger associated molecular pattern" (DAMP) molecules (DAMPs), that activate dendritic cells (DCs) to perform antigen uptake, processing and presentation, followed by CTLs cross priming. In many published studies, hyperthermia treatment of tumour cells is performed at 42-45 °C; these temperatures mainly promote cell surface expression of DAMPs...
May 8, 2018: Vaccine
https://www.readbyqxmd.com/read/29751189/risk-factors-predicting-posttraumatic-hydrocephalus-after-decompressive-craniectomy-in-traumatic-brain-injury
#12
Guangfu Di, Qianxin Hu, Dongming Liu, Xiaochun Jiang, Jiu Chen, Hongyi Liu
OBJECTIVE: To identify the risk factors for predicting posttraumatic hydrocephalus (PTH) development after traumatic brain injury (TBI) in patients who underwent decompressive craniectomy (DC). METHODS: This retrospective study included 121 patients who underwent DC after TBI between January 2013 and December 2016 at Yijishan Hospital by 6 different neurosurgeons and were still alive at 6-month follow-up. They were divided into PTH group and non-PTH group according to the presence of PTH...
May 8, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29743230/proactive-strategies-to-address-health-equity-and-disparities-recommendations-from-a-bi-national-symposium
#13
Jeannie Haggerty, Marshall H Chin, Alan Katz, Kue Young, Jonathan Foley, Antoine Groulx, Eliseo J Pérez-Stable, Jeff Turnbull, Jennifer E DeVoe, Uche Uchendo
INTRODUCTION: Health inequities persist in Canada and the United States. Both countries show differential health status and health care quality by social characteristics, making zip or postal code a greater predictor of health than genetics. Many social determinants of health overlap in the same individuals or communities, exacerbating their vulnerability. Many of the contributing factors and problems are structural and evade simple solutions. METHODS: In March 2017 a binational Canada-US symposium was held in Washington DC involving 150 primary care thought leaders, including clinicians, researchers, patients, and policy makers to address transformation in integrated primary care...
May 2018: Journal of the American Board of Family Medicine: JABFM
https://www.readbyqxmd.com/read/29740044/magnetic-resonance-probing-of-ground-state-in-the-mixed-valence-correlated-topological-insulator-smb-6
#14
S V Demishev, M I Gilmanov, A N Samarin, A V Semeno, N E Sluchanko, N A Samarin, A V Bogach, N Yu Shitsevalova, V B Filipov, M S Karasev, V V Glushkov
Introducing of topological insulator concept for fluctuating valence compound - samarium hexaboride - has recently initiated a new round of studies aimed to clarify the nature of the ground state in this extraordinary system with strong electron correlations. Here we discuss the data of magnetic resonance in the pristine single crystals of SmB6 measured in 60 GHz cavity experiments at temperatures 1.8-300 K. The microwave study as well as the DC resistivity and Hall effect measurements performed for the different states of SmB6 [110] surface prove definitely the existence of the layer with metallic conductivity increasing under lowering temperature below 5 K...
May 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29739853/mycobacterium-tuberculosis-ppe60-antigen-drives-th1-th17-responses-via-toll-like-receptor-2-dependent-maturation-of-dendritic-cells
#15
Haibo Su, Zhen Zhang, Zijian Liu, Baozhou Peng, Cong Kong, Honghai Wang, Zhi Zhang, Ying Xu
Targeting of Mycobacterium tuberculosis (MTB) PE/PPE antigens that induce type 1 helper T cell (Th1) and Th17 responses represents a crucial strategy for the development of tuberculosis (TB) vaccines. However, only few PE/PPE antigens induce these responses. Here, we sought to determine how the cell wall-associated antigen PPE60 (Rv3478) activates dendritic cell (DC) maturation and T-cell differentiation. We observed that PPE60 induces DC maturation by augmenting the protein expression of cluster of differentiation 80 (CD80) and CD86, and major histocompatibility complex (MHC) class I and MHC class II on the cell surface...
May 8, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29736404/-mycobacterium-tuberculosis-protein-rv3841-activates-dendritic-cells-and-contributes-to-a-t-helper-1-immune-response
#16
Seunga Choi, Han-Gyu Choi, Ki-Won Shin, Yong Woo Back, Hye-Soo Park, Jae Hwi Lee, Hwa-Jung Kim
The attenuated vaccine Mycobacterium bovis BCG (Bacille Calmette Guerin) has limited protective efficacy against TB. The development of more effective TB vaccines has focused on the mycobacterial antigens that cause strong T helper 1 (Th1) responses. Mtb protein Rv3841 (bacterioferritin B; BfrB) is known to play a crucial role in the growth of Mtb. Nonetheless, it is unclear whether Rv3841 can induce protective immunity against Mtb. Here, we studied the action of Rv3841 in maturation of dendritic cells (DCs) and its engagement in the development of T-cell immunity...
2018: Journal of Immunology Research
https://www.readbyqxmd.com/read/29730556/new-peptide-my1340-revert-the-inhibition-effect-of-vegf-on-dendritic-cells-differentiation-and-maturation-via-blocking-vegf-nrp-1-axis-and-inhibit-tumor-growth-in-vivo
#17
Zheng Mo, Fei Yu, Su Han, Songhua Yang, Liangliang Wu, Peng Li, Shunchang Jiao
The development and clinical application of immunostimulatory therapy provides us a new and exciting strategy in cancer treatment of which the agents act on crucial receptors. Given the fact that Neuropilin-1(NRP-1) is essential for vascular endothelial growth factor (VEGF) to inhibit LPS-dependent maturation of dendritic cells (DCs), it may present a potentially meaningful target in cancer immunotherapy. To explore this hypothesis, we synthesized a novel polypeptide called MY1340 consist of 32 amino acids with the aim of targeting VEGF-NRP-1 axis...
May 3, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29722029/a-regulatory-loop-connecting-wnt-signaling-and-telomere-capping-possible-therapeutic-implications-for-dyskeratosis-congenita
#18
REVIEW
Rafael Jesus Fernandez, F Brad Johnson
The consequences of telomere dysfunction are most apparent in rare inherited syndromes caused by genetic deficiencies in factors that normally maintain telomeres. The principal disease is known as dyskeratosis congenita (DC), but other syndromes with similar underlying genetic defects share some clinical aspects with this disease. Currently, there are no curative therapies for these diseases of telomere dysfunction. Here, we review recent findings demonstrating that dysfunctional (i.e., uncapped) telomeres can downregulate the WNT pathway, and that restoration of WNT signaling helps to recap telomeres by increasing expression of shelterins, proteins that naturally bind and protect telomeres...
April 2018: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/29721581/glycyrrhizin-suppresses-rankl-induced-osteoclastogenesis-and-oxidative-stress-through-inhibiting-nf-%C3%AE%C2%BAb-and-mapk-and-activating-ampk-nrf2
#19
Zhikun Li, Chao Chen, Xiaodong Zhu, Yifan Li, Ronghua Yu, Wei Xu
The treatment for osteoporosis involves inhibiting bone resorption and osteoclastogenesis. Glycyrrhizin (GLY) is a triterpenoid saponin glycoside known to be as the most medically efficacious component of the licorice plant. It has strong anti-inflammatory, antioxidant, and antitumor properties. We investigated the effect of GLY on osteoclastogenesis, bone resorption, and intracellular oxidative stress and its molecular mechanisms. In vitro osteoclastogenesis assays were performed using bone marrow monocytes with and without glycyrrhizin...
May 2, 2018: Calcified Tissue International
https://www.readbyqxmd.com/read/29720685/dragonfly-wing-decorated-by-gold-nanoislands-as-flexible-and-stable-substrates-for-surface-enhanced-raman-scattering-sers
#20
Guo Chao Shi, Ming Li Wang, Yan Ying Zhu, Lin Shen, Wan Li Ma, Yu Hong Wang, Rui Feng Li
A flexible and stable biomimetic SERS substrate was successfully fabricated by depositing gold (Au) nanoislands on the dragonfly wings (DW) via a simple DC magnetron sputtering system. Characterizations of the Au/DW nanostructure indicated that the optimum Au/DW-45 (sputtering time was 45 min) substrate owns high sensitivity, good stability and outstanding reproducibility. The limit of detection (LOD) for Rhodamine 6 G (R6G) was as low as 10-7  M and enhancement factor (EF) was calculated to be 2.8 × 106 ...
May 2, 2018: Scientific Reports
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