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https://www.readbyqxmd.com/read/29156849/interest-of-integrins-targeting-in-glioblastoma-according-to-tumor-heterogeneity-and-cancer-stem-cell-paradigm-an-update
#1
REVIEW
Laure Malric, Sylvie Monferran, Julia Gilhodes, Sabrina Boyrie, Perrine Dahan, Nicolas Skuli, Julie Sesen, Thomas Filleron, Aline Kowalski-Chauvel, Elizabeth Cohen-Jonathan Moyal, Christine Toulas, Anthony Lemarié
Glioblastomas are malignant brain tumors with dismal prognosis despite standard treatment with surgery and radio/chemotherapy. These tumors are defined by an important cellular heterogeneity and notably contain a particular subpopulation of Glioblastoma-initiating cells, which recapitulate the heterogeneity of the original Glioblastoma. In order to classify these heterogeneous tumors, genomic profiling has also been undertaken to classify these heterogeneous tumors into several subtypes. Current research focuses on developing therapies, which could take into account this cellular and genomic heterogeneity...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156781/toxoplasma-gondii-clp-family-protein-tgclpb1-plays-a-crucial-role-in-thermotolerance
#2
Shinuo Cao, Nali Du, Heming Chen, Yu Pang, Zhaoxia Zhang, Jun Zheng, Honglin Jia
Caseinolytic peptidase B (ClpB) plays a pivotal role in suppressing and reversing protein aggregation. Toxoplasma gondii is an intracellular parasitic protozoan that infects a wide variety of mammals and birds and therefore is exposed to a broad range of living condition. We screened ToxoDB (http://ToxoDB.org) and identified 10 putative T. gondii genes encoding members of the Clp superfamily of caseinolytic proteases and chaperones. Of these, we focused on characterizing the Class I ATP-dependent molecular chaperones TgClpB1, TgClpB2, and TgClpB3...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156742/prmda-personalized-recommendation-based-mirna-disease-association-prediction
#3
Zhu-Hong You, Luo-Pin Wang, Xing Chen, Shanwen Zhang, Xiao-Fang Li, Gui-Ying Yan, Zheng-Wei Li
Recently, researchers have been increasingly focusing on microRNAs (miRNAs) with accumulating evidence indicating that miRNAs serve as a vital role in various biological processes and dysfunctions of miRNAs are closely related with human complex diseases. Predicting potential associations between miRNAs and diseases is attached considerable significance in the domains of biology, medicine, and bioinformatics. In this study, we developed a computational model of Personalized Recommendation-based MiRNA-Disease Association prediction (PRMDA) to predict potential related miRNA for all diseases by implementing personalized recommendation-based algorithm based on integrated similarity for diseases and miRNAs...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156655/the-role-of-glyoxalase-i-glo-i-advanced-glycation-endproducts-ages-and-their-receptor-rage-in-chronic-liver-disease-and-hepatocellular-carcinoma-hcc
#4
REVIEW
Marcus Hollenbach
Glyoxalase-I (Glo-I) and glyoxalase-II (Glo-II) comprise the glyoxalase system and are responsible for the detoxification of methylglyoxal (MGO). MGO is formed non-enzymatically as a by-product, mainly in glycolysis, and leads to the formation of advanced glycation endproducts (AGEs). AGEs bind to their receptor, RAGE, and activate intracellular transcription factors, resulting in the production of pro-inflammatory cytokines, oxidative stress, and inflammation. This review will focus on the implication of the Glo-I/AGE/RAGE system in liver injury and hepatocellular carcinoma (HCC)...
November 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29156646/inhibition-of-bcl-2-and-cox-2-protein-expression-after-local-application-of-a-new-carmustine-loaded-clinoptilolite-based-delivery-system-in-a-chemically-induced-skin-cancer-model-in-mice
#5
Cristina Mihaela Ghiciuc, Aurel Lulu Strat, Lacramioara Ochiuz, Catalina Elena Lupusoru, Maria Ignat, Aurelia Vasile, Alexandru Grigorovici, Iulian Stoleriu, Carmen Solcan
Our research has focused on in vitro and in vivo evaluations of a new Carmustine (BCNU)-loaded clinoptilolite-based delivery system. Two clinoptilolite ionic forms-hydrogen form (HCLI) and sodium form (NaCLI)-were prepared, allowing a loading degree of about 5-6 mg BCNU/g of zeolite matrix due to the dual porous feature of clinoptilolite. Clinoptilolite-based delivery systems released 35.23% of the load in 12 h for the BCNU@HCLI system and only 10.82% for the BCNU@NaCLI system. The BCNU@HCLI system was chosen to develop gel and cream semisolid dosage forms...
November 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29156635/is-school-type-associated-with-objectively-measured-physical-activity-in-15-year-olds
#6
Lovro Štefan, Maroje Sorić, Antonela Devrnja, Hrvoje Podnar, Marjeta Mišigoj-Duraković
The main aims of this study were: (1) to determine the objectively assessed physical activity (PA) patterns in urban 15-year-old male and female adolescents according to school type and (2) to assess the differences in PA between school days and weekend days. In this cross-sectional study, participants were 187 secondary-school male and female adolescents (61.4% females) attending grammar and vocational schools. Patterns of PA were objectively evaluated using a multi-sensor body monitor for 5 consecutive days...
November 20, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29156634/an-overview-of-chitosan-nanoparticles-and-its-application-in-non-parenteral-drug-delivery
#7
REVIEW
Munawar A Mohammed, Jaweria T M Syeda, Kishor M Wasan, Ellen K Wasan
The focus of this review is to provide an overview of the chitosan based nanoparticles for various non-parenteral applications and also to put a spotlight on current research including sustained release and mucoadhesive chitosan dosage forms. Chitosan is a biodegradable, biocompatible polymer regarded as safe for human dietary use and approved for wound dressing applications. Chitosan has been used as a carrier in polymeric nanoparticles for drug delivery through various routes of administration. Chitosan has chemical functional groups that can be modified to achieve specific goals, making it a polymer with a tremendous range of potential applications...
November 20, 2017: Pharmaceutics
https://www.readbyqxmd.com/read/29156629/reconstruction-of-craniomaxillofacial-bone-defects-using-tissue-engineering-strategies-with-injectable-and-non-injectable-scaffolds
#8
REVIEW
Bipin Gaihre, Suren Uswatta, Ambalangodage C Jayasuriya
Engineering craniofacial bone tissues is challenging due to their complex structures. Current standard autografts and allografts have many drawbacks for craniofacial bone tissue reconstruction; including donor site morbidity and the ability to reinstate the aesthetic characteristics of the host tissue. To overcome these problems; tissue engineering and regenerative medicine strategies have been developed as a potential way to reconstruct damaged bone tissue. Different types of new biomaterials; including natural polymers; synthetic polymers and bioceramics; have emerged to treat these damaged craniofacial bone tissues in the form of injectable and non-injectable scaffolds; which are examined in this review...
November 20, 2017: Journal of Functional Biomaterials
https://www.readbyqxmd.com/read/29156625/gene-based-pathogen-detection-can-we-use-qpcr-to-predict-the-outcome-of-diagnostic-metagenomics
#9
Sandra Christine Andersen, Mette Sofie Rousing Fachmann, Kristoffer Kiil, Eva Møller Nielsen, Jeffrey Hoorfar
In microbial food safety, molecular methods such as quantitative PCR (qPCR) and next-generation sequencing (NGS) of bacterial isolates can potentially be replaced by diagnostic shotgun metagenomics. However, the methods for pre-analytical sample preparation are often optimized for qPCR, and do not necessarily perform equally well for qPCR and sequencing. The present study investigates, through screening of methods, whether qPCR can be used as an indicator for the optimization of sample preparation for NGS-based shotgun metagenomics with a diagnostic focus...
November 20, 2017: Genes
https://www.readbyqxmd.com/read/29156617/optimum-thermal-processing-for-extended-shelf-life-esl-milk
#10
REVIEW
Hilton Deeth
Extended shelf-life (ESL) or ultra-pasteurized milk is produced by thermal processing using conditions between those used for traditional high-temperature, short-time (HTST) pasteurization and those used for ultra-high-temperature (UHT) sterilization. It should have a refrigerated shelf-life of more than 30 days. To achieve this, the thermal processing has to be quite intense. The challenge is to produce a product that has high bacteriological quality and safety but also very good organoleptic characteristics...
November 20, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/29156607/calcium-dependent-protein-kinases-in-phytohormone-signaling-pathways
#11
REVIEW
Wuwu Xu, Wenchao Huang
Calcium-dependent protein kinases (CPKs/CDPKs) are Ca(2+)-sensors that decode Ca(2+) signals into specific physiological responses. Research has reported that CDPKs constitute a large multigene family in various plant species, and play diverse roles in plant growth, development, and stress responses. Although numerous CDPKs have been exhaustively studied, and many of them have been found to be involved in plant hormone biosynthesis and response mechanisms, a comprehensive overview of the manner in which CDPKs participate in phytohormone signaling pathways, regulating nearly all aspects of plant growth, has not yet been undertaken...
November 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29156596/microvesicle-involvement-in-shiga-toxin-associated-infection
#12
REVIEW
Annie Villysson, Ashmita Tontanahal, Diana Karpman
Shiga toxin is the main virulence factor of enterohemorrhagic Escherichia coli, a non-invasive pathogen that releases virulence factors in the intestine, causing hemorrhagic colitis and, in severe cases, hemolytic uremic syndrome (HUS). HUS manifests with acute renal failure, hemolytic anemia and thrombocytopenia. Shiga toxin induces endothelial cell damage leading to platelet deposition in thrombi within the microvasculature and the development of thrombotic microangiopathy, mostly affecting the kidney. Red blood cells are destroyed in the occlusive capillary lesions...
November 19, 2017: Toxins
https://www.readbyqxmd.com/read/29156583/new-paradigms-for-the-study-of-ocular-alphaherpesvirus-infections-insights-into-the-use-of-non-traditional-host-model-systems
#13
REVIEW
Matthew R Pennington, Eric C Ledbetter, Gerlinde R Van de Walle
Ocular herpesviruses, most notably human alphaherpesvirus 1 (HSV-1), canid alphaherpesvirus 1 (CHV-1) and felid alphaherpesvirus 1 (FHV-1), infect and cause severe disease that may lead to blindness. CHV-1 and FHV-1 have a pathogenesis and induce clinical disease in their hosts that is similar to HSV-1 ocular infections in humans, suggesting that infection of dogs and cats with CHV-1 and FHV-1, respectively, can be used as a comparative natural host model of herpesvirus-induced ocular disease. In this review, we discuss both strengths and limitations of the various available model systems to study ocular herpesvirus infection, with a focus on the use of these non-traditional virus-natural host models...
November 18, 2017: Viruses
https://www.readbyqxmd.com/read/29156581/an-enhanced-non-coherent-pre-filter-design-for-tracking-error-estimation-in-gnss-receivers
#14
Zhibin Luo, Jicheng Ding, Lin Zhao, Mouyan Wu
Tracking error estimation is of great importance in global navigation satellite system (GNSS) receivers. Any inaccurate estimation for tracking error will decrease the signal tracking ability of signal tracking loops and the accuracies of position fixing, velocity determination, and timing. Tracking error estimation can be done by traditional discriminator, or Kalman filter-based pre-filter. The pre-filter can be divided into two categories: coherent and non-coherent. This paper focuses on the performance improvements of non-coherent pre-filter...
November 18, 2017: Sensors
https://www.readbyqxmd.com/read/29156569/new-insights-into-the-microbiota-of-moth-pests
#15
REVIEW
Valeria Mereghetti, Bessem Chouaia, Matteo Montagna
In recent years, next generation sequencing (NGS) technologies have helped to improve our understanding of the bacterial communities associated with insects, shedding light on their wide taxonomic and functional diversity. To date, little is known about the microbiota of lepidopterans, which includes some of the most damaging agricultural and forest pests worldwide. Studying their microbiota could help us better understand their ecology and offer insights into developing new pest control strategies. In this paper, we review the literature pertaining to the microbiota of lepidopterans with a focus on pests, and highlight potential recurrent patterns regarding microbiota structure and composition...
November 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29156557/the-invasive-region-of-glioblastoma-defined-by-5ala-guided-surgery-has-an-altered-cancer-stem-cell-marker-profile-compared-to-central-tumour
#16
Stuart J Smith, Mohammed Diksin, Saachi Chhaya, Shwetha Sairam, Maria A Estevez-Cebrero, Ruman Rahman
Glioblastoma, a WHO grade IV astrocytoma, is a highly aggressive and heterogeneous tumour that infiltrates deeply into surrounding brain parenchyma, making complete surgical resection impossible. Despite chemo-radiotherapy, the residual cell population within brain parenchyma post-surgery causes inevitable recurrence. Previously, the tumour core has been the focus of research and the basis for targeted therapeutic regimes, which have failed to improve survival in clinical trials. Here, we focus on the invasive margin as defined by the region with 5-aminolevulinic acid (5ALA) (GliolanTM) fluorescence at surgery beyond the T1 enhancing region on magnetic resonance imaging (MRI)...
November 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29156509/the-role-of-exosomes-on-colorectal-cancer-a-review
#17
REVIEW
Lidia Ruiz-López, Isabel Blancas, José M Garrido, Nuria Mut-Salud, Marta Moya-Jódar, Antonio Osuna, Fernando Rodríguez-Serrano
Exosomes are extracellular microvesicles released from cells, which are involved in many biological and pathological processes, mainly due to their role in intercellular communication. Exosomes derived from colorectal cancer (CRC) cells are related to oncogenesis, tumor cell survival, chemo-resistance and metastasis. The role of the exosomes in these processes involves the transfer of proteins, RNAs or mutant versions of proto-oncogenes to the target cells. In recent years, great efforts have been made to identify useful biomarkers in CRC exosomes for diagnosis, prediction of prognosis and treatment response...
November 20, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29156504/clinical-risk-reclassification-at-10%C3%A2-years
#18
Nancy R Cook, Olga V Demler, Nina P Paynter
Three papers in this issue focus on the role of calibration in model fit statistics, including the net reclassification improvement (NRI) and integrated discrimination improvement (IDI). This commentary reviews the development of such reclassification statistics along with more recent advances in our understanding of these measures. We show how the two-category NRI and the IDI are affected by changes in the event rate in theory and in an applied example. We also describe the role of calibration and how it may be assessed...
December 10, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/29156492/bayesian-monotonic-errors-in-variables-models-with-applications-to-pathogen-susceptibility-testing
#19
Glen DePalma, Bruce A Craig
Drug dilution (MIC) and disk diffusion (DIA) are the 2 most common antimicrobial susceptibility assays used by hospitals and clinics to determine an unknown pathogen's susceptibility to various antibiotics. Since only one assay is commonly used, it is important that the 2 assays give similar results. Calibration of the DIA assay to the MIC assay is typically done using the error-rate bounded method, which selects DIA breakpoints that minimize the observed discrepancies between the 2 assays. In 2000, Craig proposed a model-based approach that specifically models the measurement error and rounding processes of each assay, the underlying pathogen distribution, and the true monotonic relationship between the 2 assays...
November 20, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/29156486/-update-in-obstetric-anesthesia-tried-and-trusted-methods-controversies-and-new-perspectives
#20
Peter Kranke, Thorsten Annecke, Dorothee H Bremerich, Daniel Chappell, Thierry Girard, Wiebke Gogarten, Robert Hanß, Lutz Kaufner, Sophie Neuhaus, Tobias Ninke, Thomas Standl, Stefan Weber, Yvonne Jelting, Thomas Volk
Since 1975, a plethora of lectures within the context of annual meetings relevant for the clinical care has been summarized in "what's new in obstetric anesthesia" by the society for Obstetric anesthesia and Perinatology which can be recommended to everyone interested in anaesthesiology in the delivery room. After the death of Gerard W. Ostheimer, Professor of Anaesthesiology at Brigham and Women's Hospital in Boston, Massachusetts, it became renamed the Gerard W. Ostheimer "what's new in obstetric anesthesia" lecture to honor his contributions to regional anesthesia and obstetric anaesthesia...
November 2017: Anästhesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie: AINS
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