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https://www.readbyqxmd.com/read/28437803/prevalence-of-helicobacter-pylori-infection-among-blood-donors-in-saxony-anhalt-germany-a-region-at-intermediate-risk-for-gastric-cancer
#1
Caspar Franck, Armin Hoffmann, Alexander Link, Christian Schulz, Kerstin Wuttig, Elke Becker, Marcell Heim, Marino Venerito, Peter Malfertheiner
Background In the federal state of Saxony-Anhalt, gastric cancer (GC) incidence ranks among the highest in Germany. Helicobacter pylori prevalence is a surrogate marker for GC risk in a given population. In 2010 we reported an H. pylori seroprevalence of 44.4 % in patients at the emergency ward of the University Hospital of Magdeburg, the capital of Saxony-Anhalt. Our aim is to update these findings in a cohort of healthy blood donors from the same region. Materials and methods The sera of 516 consecutive blood donors (40...
April 24, 2017: Zeitschrift Für Gastroenterologie
https://www.readbyqxmd.com/read/28437627/tumor-acidity-activatable-tat-targeted-nanomedicine-for-enlarged-fluorescence-magnetic-resonance-imaging-guided-photodynamic-therapy
#2
Meng Gao, Feng Fan, Dongdong Li, Yue Yu, Kuirong Mao, Tianmeng Sun, Haisheng Qian, Wei Tao, Xianzhu Yang
Nanoparticles simultaneously integrated the photosensitizers and diagnostic agents represent an emerging approach for imaging-guided photodynamic therapy (PDT). However, the diagnostic sensitivity and therapeutic efficacy of nanoparticles as well as the heterogeneity of tumors pose tremendous challenges for clinical imaging-guided PDT treatment. Herein, a polymeric nanoparticle with tumor acidity (pHe)-activatable TAT targeting ligand that encapsulates the photosensitizer chlorin e6 (Ce6) and chelates contrast agent Gd(3+) is successfully developed for fluorescence/magnetic resonance (MR) dual-model imaging-guided precision PDT...
April 18, 2017: Biomaterials
https://www.readbyqxmd.com/read/28437625/imaging-guided-synergetic-therapy-of-orthotopic-transplantation-tumor-by-superselectively-arterial-administration-of-microwave-induced-microcapsules
#3
Shunsong Tang, Changhui Fu, Longfei Tan, Tianlong Liu, Jingsong Mao, Xiangling Ren, Hongying Su, Dan Long, Qianqian Chai, Zhongbing Huang, Xudong Chen, Jingzhuo Wang, Jun Ren, Xianwei Meng
It is an ambitious target to improve overall Hepatocellular Carcinoma therapeutic effects. Recently, MW ablation has emerged as a powerful thermal ablation technique, affording favorable survival with excellent local tumor control. To achieve better therapeutic effects of MW ablation, MW sensitizers are prepared for enhanced MW ablation to preferentially heat tumor territory. However, it is still not practicable for treatment of the orthotopic transplantation tumor. Herein, biocompatible and degradable methoxy poly(ethylene glycol)-poly(lactic-co-glycolic acid) (mPEG-PLGA) microcapsules with hierarchical structure have been designed for microwave-induced tumor therapy...
April 14, 2017: Biomaterials
https://www.readbyqxmd.com/read/28437394/selective-degradation-of-splicing-factor-caper%C3%AE-by-anticancer-sulfonamides
#4
Taisuke Uehara, Yukinori Minoshima, Koji Sagane, Naoko Hata Sugi, Kaoru Ogawa Mitsuhashi, Noboru Yamamoto, Hiroshi Kamiyama, Kentaro Takahashi, Yoshihiko Kotake, Mai Uesugi, Akira Yokoi, Atsushi Inoue, Taku Yoshida, Miyuki Mabuchi, Akito Tanaka, Takashi Owa
Target-protein degradation is an emerging field in drug discovery and development. In particular, the substrate-receptor proteins of the cullin-ubiquitin ligase system play a key role in selective protein degradation, which is an essential component of the anti-myeloma activity of immunomodulatory drugs (IMiDs), such as lenalidomide. Here, we demonstrate that a series of anticancer sulfonamides NSC 719239 (E7820), indisulam, and NSC 339004 (chloroquinoxaline sulfonamide, CQS) induce proteasomal degradation of the U2AF-related splicing factor coactivator of activating protein-1 and estrogen receptors (CAPERα) via CRL4(DCAF15) mediated ubiquitination in human cancer cell lines...
April 24, 2017: Nature Chemical Biology
https://www.readbyqxmd.com/read/28436934/biopolymers-codelivering-engineered-t-cells-and-sting-agonists-can-eliminate-heterogeneous-tumors
#5
Tyrel T Smith, Howell F Moffett, Sirkka B Stephan, Cary F Opel, Amy G Dumigan, Xiuyun Jiang, Venu G Pillarisetty, Smitha P S Pillai, K Dane Wittrup, Matthias T Stephan
Therapies using T cells that are programmed to express chimeric antigen receptors (CAR T cells) consistently produce positive results in patients with hematologic malignancies. However, CAR T cell treatments are less effective in solid tumors for several reasons. First, lymphocytes do not efficiently target CAR T cells; second, solid tumors create an immunosuppressive microenvironment that inactivates T cell responses; and third, solid cancers are typified by phenotypic diversity and thus include cells that do not express proteins targeted by the engineered receptors, enabling the formation of escape variants that elude CAR T cell targeting...
April 24, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28436462/mir-146b-is-down-regulated-during-the-chondrogenic-differentiation-of-human-bone-marrow-derived-skeletal-stem-cells-and-up-regulated-in-osteoarthritis
#6
Emma Budd, María C de Andrés, Tilman Sanchez-Elsner, Richard O C Oreffo
Articular cartilage injury can result in chondrocyte loss and diminishment of specialised extracellular matrix, which can progress to an osteoarthritic (OA) phenotype. Stem cells have emerged as a favourable approach for articular cartilage regeneration. Identification of miRNAs which influence stem cell fate offers new approaches for application of miRNAs to regenerate articular cartilage. Skeletal stem cells (SSCs) isolated from human bone marrow were cultured as high density micromass' using TGF-β3 to induce chondrogenesis...
April 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28436380/tenofovir-disoproxil-fumarate-monotherapy-is-superior-to-entecavir-adefovir-combination-therapy-in-patients-with-suboptimal-response-to-lamivudine-adefovir-therapy-for-nucleoside-resistant-hbv-a-96-week-prospective-multicenter-trial
#7
Sae Hwan Lee, Gab Jin Cheon, Hong Soo Kim, Sang Gyune Kim, Young Seok Kim, Soung Won Jeong, Jae Young Jang, Boo Sung Kim, Baek Gyu Jun, Young Don Kim, Dae Won Jun, Joo Hyun Sohn, Tae Yeob Kim, Byung Seok Lee
BACKGROUND: A complete virologic response is closely related to the long-term outcome of patients with chronic hepatitis B and prevention of emerging hepatitis B virus (HBV) mutations. We aimed to evaluate the efficacy of tenofovir disoproxil fumarate (TDF) monotherapy compared to entecavir-adefovir dipivoxil (ETV-ADV) combination therapy in patients with suboptimal responses to long-term lamivudine-adefovir dipivoxil (LAM-ADV) therapy for nucleoside analogue-resistant chronic hepatitis B...
April 24, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28436206/clinical-practice-guidelines-on-iron-therapy-a-critical-evaluation
#8
Lucia Del Vecchio, Francesco Locatelli
Anemia is common among patients with chronic kidney disease (CKD) and it is managed primarily with erythropoiesis-stimulating agents (ESA) and iron therapy. Following concerns around ESA therapy and economic constraints, IV iron is more and more administered worldwide. Several guidelines or position papers, which give indications on iron therapy in CKD patients, have been issued in Nephrology. Unfortunately, the field is characterized by a lack of evidence. As a result, the recommendations/suggestions are not uniform...
April 24, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28435487/randomized-trial-of-adding-parenteral-acetaminophen-to-prochlorperazine-and-diphenhydramine-to-treat-headache-in-the-emergency-department
#9
Stefan H Meyering, Ryan W Stringer, Matthew K Hysell
INTRODUCTION: Headaches represent over three million emergency department (ED) visits per year, comprising 2.4% of all ED visits. There are many proposed methods and clinical guidelines of treating acute headache presentations. However, data on intravenous acetaminophen usage in these settings are lacking. In this study, we sought to determine the efficacy of intravenous (IV) acetaminophen as an adjunct to a standard therapy for the treatment of patients who present to the ED with a chief complaint of "headache...
April 2017: Western Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28435256/doxorubicin-loaded-cell-derived-nanovesicles-an-alternative-targeted-approach-for-anti-tumor-therapy
#10
Wei Jiang Goh, Choon Keong Lee, Shui Zou, Esther Cy Woon, Bertrand Czarny, Giorgia Pastorin
Cell-derived nanovesicles (CDNs) are an emerging class of biological drug delivery systems (DDS) that retain the characteristics of the cells they were derived from, without the need for further surface functionalization. CDNs are also biocompatible, being derived from natural sources and also take advantage of the enhanced permeability and retention effect due to their nanodimensions. Furthermore, CDNs derived from monocytes were shown to have an in vivo targeting effect, accumulating at the tumor site in a previous study conducted in a mouse tumor model...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28435059/in-vivo-cancer-research-using-aggregation-induced-emission-organic-nanoparticles
#11
REVIEW
Xiaoyong Yi, Jun Li, Zhipeng Zhu, Qian Liu, Qiang Xue, Dan Ding
Exploration of a nanoplatform that benefits precise cancer diagnosis and treatment in vivo is particularly valuable. In recent years, aggregation-induced emission luminogens (AIEgens) have emerged as advanced fluorescent materials for the design and preparation of organic nanoparticles (NPs); they also have unique advantages in biomedical applications, especially in cancer diagnosis and theranostics. In this review, we summarize the current status of the development of AIEgen-based NPs for in vivo cancer research, including in vivo tumor diagnosis, drug delivery, and photodynamic therapy...
April 20, 2017: Drug Discovery Today
https://www.readbyqxmd.com/read/28435007/stem-cells-and-their-potential-clinical-applications-in-psychiatric-disorders
#12
REVIEW
Mariusz Z Ratajczak, Andrzej K Ciechanowicz, Jolanta Kucharska-Mazur, Jerzy Samochowiec
The robustness of stem cells is one of the major factors that directly impacts life quality and life span. Evidence has accumulated that changes in the stem cell compartment affect human mental health and serve as an indicator of psychiatric problems. It is well known that stem cells continuously replace differentiated cells and tissues that are used up during life, although this replacement occurs at a different pace in the various organs. However, the participation of local neural stem cells in regeneration of the central nervous system is controversial...
April 20, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28435004/improvements-in-left-ventricular-diastolic-mechanics-after-parachute-device-implantation-in-patients-with-ischemia-heart-failure-a-cardiac-ct-study
#13
Chun-Ho Yun, Jing-Yi Sun, Barry Templin, Shih-Hsuan Lin, Kuan-Ming Chen, Tung-Hsin Wu, Chung-Lieh Hung, Chun-Chieh Liu, Hsi-Hsien Hsu, Mohamad Amer Alaiti, Anas Fares, Anthony DeCicco, Hiram G Bezerra
BACKGROUND: Percutaneous ventricular restoration therapy using left ventricle (LV) partitioning Parachute device has emerged as a clinical treatment option for LV apical aneurysm post extensive anterior myocardial infarction (AMI). We assessed changes of diastolic mechanics and accompanied functional improvements following LV parachute device implantation by cardiac computed tomography (CCT). METHODS AND RESULTS: CCT data from 28 patients in the pre- and post-implantation of LV parachute device implantation...
April 20, 2017: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/28434937/defining-a-research-agenda-to-address-the-converging-epidemics-of-tuberculosis-and-diabetes-part-2-underlying-biological-mechanisms
#14
REVIEW
Katharina Ronacher, Reinout van Crevel, Julia Critchley, Andrew A Bremer, Larry S Schlesinger, Anil Kapur, Randall Basaraba, Hardy Kornfeld, Blanca I Restrepo
There is growing interest in the re-emerging interaction between type 2 diabetes (DM) and tuberculosis (TB), but the underlying biological mechanisms are poorly understood despite their possible implications in clinical management. Experts in epidemiological, public health, basic science and clinical studies recently convened and identified research priorities for elucidating the underlying mechanisms for the co-ocurrence of TB and DM. We identified gaps in current knowlege of altered immunity in DM patients during TB, where most studies suggest an under-performing innate immunity, but exaggerated adaptive immunity to Mycobacterium tuberculosis...
April 19, 2017: Chest
https://www.readbyqxmd.com/read/28434771/pharmacological-management-of-cerebral-venous-sinus-thrombosis-with-full-dose-iv-heparin-infusion-and-its-clinical-outcomes
#15
Andrea Fernandez, Vidya Nair, Anna Mckeone, Joseph Ho
OBJECTIVE: To report a case of successful use of unfractionated heparin (UFH) infusion to treat cerebral venous sinus thrombosis (CVST). CASE SUMMARY: A 54-year-old female with a history of ovarian cancer addressed through palliative care, presents to the Emergency Department complaining of nausea, vomiting and headache for the last 72h. The patient was on a home regimen of enoxaparin 1.5mg/kg subcutaneously daily for recent pulmonary embolism and deep vein thrombosis that developed while on warfarin therapy previously...
March 18, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28434655/apolipoprotein-e-receptors-and-modulation-of-alzheimer-s-disease
#16
REVIEW
Na Zhao, Chia-Chen Liu, Wenhui Qiao, Guojun Bu
Apolipoprotein E (apoE) is a lipid carrier in both the peripheral and the central nervous systems. Lipid-loaded apoE lipoprotein particles bind to several cell surface receptors to support membrane homeostasis and injury repair in the brain. Considering prevalence and relative risk magnitude, the ε4 allele of the APOE gene is the strongest genetic risk factor for late-onset Alzheimer's disease (AD). ApoE4 contributes to AD pathogenesis by modulating multiple pathways, including but not limited to the metabolism, aggregation, and toxicity of amyloid-β peptide, tauopathy, synaptic plasticity, lipid transport, glucose metabolism, mitochondrial function, vascular integrity, and neuroinflammation...
March 14, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28434587/aligning-physiology-with-psychology-translational-neuroscience-in-neuropsychiatric-drug-discovery
#17
REVIEW
Robert A McArthur
This review presents an overview of some of the pre-clinical and clinical issues that have contributed to the failures of potential novel neuropsychiatric drugs, which have prompted a re-examination of the role of animal models of neuropsychiatric disorders. Advances both in basic neuroscience and technology have driven the development of animal models of aspects of neuropsychiatric disorders. Genetics and environmental factors have been the primary contributors to the development of new animal models. Neuroimaging has contributed to the search for biomarkers by which neuropsychiatric disorders may be identified and differentiated, its progression monitored and that the effects of therapy assessed...
May 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28434466/cost-effectiveness-of-acupuncture-in-an-employee-population-a-retrospective-analysis
#18
Bijan J Borah, James M Naessens, Amy E Glasgow, Brent A Bauer, Tony Y Chon
OBJECTIVES: To determine whether acupuncture is a cost-effective adjunct to usual care for Mayo Clinic employees and their dependents experiencing pain symptoms. DESIGN: Retrospective review of the medical and billing records of 466 employee-patients and their dependents who had received acupuncture as part of their care and 466 propensity score-matched control patients. INTERVENTIONS: Usual care in combination with acupuncture compared with usual care alone...
April 2017: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/28434400/role-of-modern-immunotherapy-in-gastrointestinal-malignancies-a-review-of-current-clinical-progress
#19
REVIEW
Zin W Myint, Gaurav Goel
Gastrointestinal (GI) cancers are a group of highly aggressive malignancies with a huge disease burden worldwide. There is clearly a significant unmet need for new drugs and therapies to further improve the treatment outcomes of GI malignancies. Immunotherapy is a novel treatment strategy that is emerging as an effective and promising treatment option against several types of cancers. CTLA-4 and PD-1 are critical immune checkpoint molecules that negatively regulate T cell activation via distinct mechanisms...
April 24, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28434399/the-next-generation-of-immunotherapy-keeping-lung-cancer-in-check
#20
REVIEW
Ashwin Somasundaram, Timothy F Burns
Lung cancer is the deadliest malignancy with more cancer deaths per year than the next three cancers combined. Despite remarkable advances in targeted therapy, advanced lung cancer patients have not experienced a significant improvement in mortality. Lung cancer has been shown to be immunogenic and responsive to checkpoint blockade therapy. Checkpoint signals such as CTLA-4 and PD-1/PD-L1 dampen T cell activation and allow tumors to escape the adaptive immune response. Response rates in patients with pretreated, advanced NSCLC were much higher and more durable with PD-1 blockade therapy compared to standard-of-care, cytotoxic chemotherapy...
April 24, 2017: Journal of Hematology & Oncology
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