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https://www.readbyqxmd.com/read/29452455/complex-hur-function-in-pancreatic-cancer-cells
#1
REVIEW
Jonathan R Brody, Dan A Dixon
Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal cancers with dismal patient outcomes. The underlying core genetic drivers of disease have been identified in human tumor specimens and described in genetically engineered mouse models. These genetic drivers of PDAC include KRAS signaling, TP53 mutations, and genetic loss of the SMAD4 tumor suppressor protein. Beyond the known mutational landscape of PDAC genomes, alternative disrupted targets that extend beyond conventional genetic mutations have been elusive and understudied in the context of PDAC cell therapeutic resistance and survival...
February 16, 2018: Wiley Interdisciplinary Reviews. RNA
https://www.readbyqxmd.com/read/29452420/gut-microbiomics-a-solution-to-unloose-the-gordian-knot-of-biological-effects-of-ionizing-radiation
#2
Amy Zhang, Tomoko Y Steen
The Chernobyl and Fukushima nuclear accidents have called forth a growing body of research on their biological aftermaths. A variety of wild organisms, including primates, birds, fish, insects, and worms are being studied in the affected areas, with emerging morphological, physiological, and genetic aberrations ascribed to ionizing radiation. Despite the effort in surveying Chernobyl and Fukushima wildlife, little is known about the microorganisms associated with these radiation-contaminated animals. The microbiota, especially the gut commensal, plays an important role in shaping the metabolic reservoir and immune system of the host, and is sensitive to a wide array of environmental factors, including ionizing radiation...
February 14, 2018: Journal of Heredity
https://www.readbyqxmd.com/read/29452382/simulated-ablation-for-detection-of-cells-impacting-paracrine-signalling-in-histology-analysis
#3
Jake P Taylor-King, Etienne Baratchart, Andrew Dhawan, Elizabeth A Coker, Inga Hansine Rye, Hege Russnes, S Jon Chapman, David Basanta, Andriy Marusyk
Intra-tumour phenotypic heterogeneity limits accuracy of clinical diagnostics and hampers the efficiency of anti-cancer therapies. Dealing with this cellular heterogeneity requires adequate understanding of its sources, which is extremely difficult, as phenotypes of tumour cells integrate hardwired (epi)mutational differences with the dynamic responses to microenvironmental cues. The later comes in form of both direct physical interactions, as well as inputs from gradients of secreted signalling molecules. Furthermore, tumour cells can not only receive microenvironmental cues, but also produce them...
February 14, 2018: Mathematical Medicine and Biology: a Journal of the IMA
https://www.readbyqxmd.com/read/29452363/structuremapper-a-high-throughput-algorithm-for-analyzing-protein-sequence-locations-in-structural-data
#4
Anssi Nurminen, Vesa P Hytönen, Alfonso Valencia
Motivation: StructureMapper is a high-throughput algorithm for automated mapping of protein primary amino sequence locations to existing three-dimensional protein structures. The algorithm is intended for facilitating easy and efficient utilization of structural information in protein characterization and proteomics. StructureMapper provides an analysis of the identified structural locations that includes surface accessibility, flexibility, protein-protein interfacing, intrinsic disorder prediction, secondary structure assignment, biological assembly information, and sequence identity percentages, among other metrics...
February 14, 2018: Bioinformatics
https://www.readbyqxmd.com/read/29452335/change-in-cardiometabolic-risk-among-blacks-whites-and-hispanics-findings-from-the-health-and-retirement-study
#5
Uchechi A Mitchell, Jennifer A Ailshire, Eileen M Crimmins
Background: Blacks experience greater multi-system physiological dysregulation, or cumulative biological risk, which is associated with poor cardiometabolic health and mortality. In this study, we assess race differences in change in risk over four years among older whites, blacks and Hispanics. Method: We examined race differences in 4-year change in individual biomarkers and a cumulative measure of risk-cardiometabolic risk (CMR)-using data for each respondent from two waves of the Health and Retirement Study's biomarker assessment (n=5,512)...
February 14, 2018: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/29452304/the-chondrocyte-channelome-a-narrative-review
#6
Ali Mobasheri, Csaba Matta, Ilona Uzielienè, Emma Budd, Pablo Martín-Vasallo, Eiva Bernotiene
Chondrocytes are the main cells in the extracellular matrix of articular cartilage and possess a highly differentiated phenotype that is the hallmark of the unique physiological functions of this specialised load-bearing connective tissue. The plasma membrane of articular chondrocytes contains a rich and diverse complement of membrane proteins, known as the membranome, which defines the cell surface phenotype of the cells. The membranome is a key target of pharmacological agents and is important for chondrocyte function...
February 13, 2018: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/29452303/effect-of-biologics-on-fatigue-in-psoriatic-arthritis-a-systematic-literature-review-with-meta-analysis
#7
Thomas Reygaerts, Stéphane Mitrovic, Bruno Fautrel, Laure Gossec
OBJECTIVES: Fatigue is a significant issue in psoriatic arthritis. The objective was to assess the effect of biological disease modifying antirheumatic drugs and apremilast on fatigue in psoriatic arthritis randomised controlled trials and to compare this effect with the effect in the same trials, on pain, through a systematic literature review and meta-analysis. METHODS: A systematic literature review was performed up to January 2017 in PubMed, Embase and Cochrane databases...
February 13, 2018: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/29452302/switching-of-biologics-in-ra-patients-who-do-not-respond-to-the-first-biologic
#8
EDITORIAL
Patrick Durez
No abstract text is available yet for this article.
February 13, 2018: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/29452292/prevalence-risk-factors-and-genetic-characterization-of-toxoplasma-gondii-in-sick-pigs-and-stray-cats-in-jiangsu-province-eastern-china
#9
Zhao-Feng Hou, Shi-Jie Su, Dan-Dan Liu, Le-le Wang, Chuan-Li Jia, Zhen-Xing Zhao, Yi-Fei Ma, Qiao-Qiao Li, Jin-Jun Xu, Jian-Ping Tao
Toxoplasma gondii is an obligate intracellular parasitic protozoan with a worldwide distribution. The parasites in edible tissues of pigs and oocysts from cats are the major sources of T. gondii infection in humans. However, there are no data from sick pigs in veterinary clinics or from stray cats in Jiangsu Province, eastern China. In total, biological samples from 141 sick pigs and 64 stray cats were collected from this region. The rate of T. gondii infection in sick pigs was 46.81% using a polymerase chain reaction (PCR), and the overall prevalence of toxoplasmosis in stray cats was 34...
February 13, 2018: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29452282/load-sharing-through-elastic-micro-motion-accelerates-bone-formation-and-interbody-fusion
#10
Eric H Ledet, Glenn P Sanders, Darryl J DiRisio, Joseph C Glennon
BACKGROUND: Context: Achieving a successful spinal fusion requires the proper biologic and biomechanical environment. Optimizing load-sharing in the interbody space can enhance bone formation. For anterior cervical discectomy and fusion (ACDF), loading and motion are largely dictated by the stiffness of the plate which can facilitate a balance between stability and load-sharing. The advantages of load-sharing may be substantial for patients with comorbidities and in multi-level procedures where pseudarthrosis rates are significant...
February 13, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29452279/biophysical-methods-complementary-tools-to-study-the-influence-of-human-steroid-hormones-on-the-liposome-membrane-properties
#11
REVIEW
Rola Abboud, Catherine Charcosset, Hélène Greige-Gerges
Human steroid hormones are involved in many aspects of physiology and have long been known to exert rapid and delayed effects. They are lipophilic molecules which can be incorporated into the lipid membranes. Through non-covalent interactions they can alter the properties of the membrane, including fluidity, lipid raft formation and others. In this review, different biophysical techniques were described to study the interaction of human steroid hormones with biological and biomimetic membranes such as differential scanning calorimetry, electron paramagnetic resonance, fluorescence spectroscopy and Fourier transform infrared spectroscopy...
February 13, 2018: Biochimie
https://www.readbyqxmd.com/read/29452276/application-of-targeted-mass-spectrometry-in-bottom-up-proteomics-for-systems-biology-research
#12
Nathan P Manes, Aleksandra Nita-Lazar
The enormous diversity of proteoforms produces tremendous complexity within cellular proteomes, facilitates intricate networks of molecular interactions, and constitutes a formidable analytical challenge for biomedical researchers. Currently, quantitative whole-proteome profiling often relies on non-targeted liquid chromatography-mass spectrometry (LC-MS), which samples proteoforms broadly, but can suffer from lower accuracy, sensitivity, and reproducibility compared with targeted LC-MS. Recent advances in bottom-up proteomics using targeted LC-MS have enabled previously unachievable identification and quantification of target proteins and posttranslational modifications within complex samples...
February 13, 2018: Journal of Proteomics
https://www.readbyqxmd.com/read/29452267/git2-a-keystone-in-ageing-and-age-related-disease
#13
REVIEW
Jaana van Gastel, Jan Boddaert, Areta Jushaj, Richard T Premont, Louis M Luttrell, Jonathan Janssens, Bronwen Martin, Stuart Maudsley
Since its discovery, G protein-coupled receptor kinase-interacting protein 2, GIT2, and its family member, GIT1, have received considerable interest concerning their potential key roles in regulating multiple inter-connected physiological and pathophysiological processes. GIT2 was first identified as a multifunctional protein that is recruited to G protein-coupled receptors (GPCRs) during the process of receptor internalization. Recent findings have demonstrated that perhaps one of the most important effects of GIT2 in physiology concerns its role in controlling multiple aspects of the complex ageing process...
February 13, 2018: Ageing Research Reviews
https://www.readbyqxmd.com/read/29452261/maternal-betaine-administration-modulates-hepatic-type-1-iodothyronine-deiodinase-dio1-expression-in-chicken-offspring-through-epigenetic-modifications
#14
Zhen Hou, Qinwei Sun, Yun Hu, Shu Yang, Yibo Zong, Ruqian Zhao
As a feed additive, betaine is widely used in livestock production for its ability to promote growth. Our previous studies had reported that maternal betaine supplementation altered hepatic metabolism in offspring. But it remains unknown whether and how maternal betaine modulates metabolism of thyroid hormones in the offspring chickens by epigenetic modification. In this study, one hundred and twenty Rugao yellow-feathered laying hens were randomly divided into two groups, and were fed basal diet with or without 0...
February 13, 2018: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/29452256/modulation-of-oxidative-stress-response-by-flaxseed-oil-role-of-lipid-peroxidation-and-underlying-mechanisms
#15
REVIEW
Rajnish Kumar Yadav, Manjari Singh, Subhadeep Roy, Mohd Nazam Ansari, Abdulaziz S Saeedan, Gaurav Kaithwas
Polyunsaturated fatty acids (PUFA's) are majorly classified as ω-3 and ω-6 fatty acids. The eicosapentaenoic acid (EPA, ω-3:20-5), docosahexaenoic acid (DHA, ω-3:22-6) and alpha-linolenic acid (ALA, ω-3:18-3) are known ω-3 fatty acids, extracted from animal (e.g fish oil) and plant sources (e.g flaxseed oil). Furthermore, linoleic acid (LA, ω-6:18-2) is recognized as ω-6 fatty acid and the most prominent biological fatty acid with a pro-inflammatory response. Flaxseed oil has variety of biological roles, due to a significant amount of ω-3/ω-6 fatty acids...
February 13, 2018: Prostaglandins & Other Lipid Mediators
https://www.readbyqxmd.com/read/29452242/monolithic-zirconia-crowns-in-the-aesthetic-zone-in-heavy-grinders-with-severe-tooth-wear-an-observational-case-series
#16
Torbjørn Leif Hansen, Christian Schriwer, Marit Øilo, Harald Gjengedal
OBJECTIVES: The aim of this study was to assess the clinical outcomes and patient satisfaction with monolithic zirconia crowns in patients with severe tooth wear (≥1/3 of the tooth crown) in the aesthetic zone. METHODS: The historical prospective study sample consisted of 13 patients previously treated with a total of 84 monolithic zirconia crowns. The patients had been treated in a private clinic in Bergen, Norway, in the period 2012 to 2014. All patients were men, aged 35-67 years (mean age 56...
February 13, 2018: Journal of Dentistry
https://www.readbyqxmd.com/read/29452240/the-effect-of-non-anti-tnf-targeting-biologics-and-small-molecules-on-insulin-resistance-in-inflammatory-arthritis
#17
REVIEW
Francesco Ursini, Emilio Russo, Piero Ruscitti, Roberto Giacomelli, Giovambattista De Sarro
Inflammatory arthritides are chronic diseases characterised by an increase in cardiovascular risk, largely attributable to the synergy between high-grade systemic inflammation and an elevated prevalence of traditional cardiovascular risk factors. Amongst the latter, insulin resistance and type 2 diabetes (T2D) play a key position. Previous studies demonstrated a potential insulin-sensiting effect of anti-TNF biologic medications. For converse, less is known about the role of newer biologics or small molecules...
February 13, 2018: Autoimmunity Reviews
https://www.readbyqxmd.com/read/29452225/seminars-in-cell-and-developmental-biology-human-dendritic-cell-immunodeficiencies
#18
REVIEW
Venetia Bigley, Urszula Cytlak, Matthew Collin
The critical functions of dendritic cells (DCs) in immunity and tolerance have been demonstrated in many animal models but their non-redundant roles in humans are more difficult to probe. Human primary immunodeficiency (PID), resulting from single gene mutations, may result in DC deficiency or dysfunction. This relatively recent recognition illuminates the in vivo role of human DCs and the pathophysiology of the associated clinical syndromes. In this review, the development and function of DCs as established in murine models and human in vitro systems, is discussed...
February 13, 2018: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/29452189/roasted-and-green-coffee-extracts-show-antioxidant-and-cytotoxic-activity-in-myoblast-and-endothelial-cell-lines-in-a-cell-specific-manner
#19
Alexandros Priftis, Eleftheria-Maria Panagiotou, Konstantinos Lakis, Christina Plika, Maria Halabalaki, Georgia Ntasi, Aristidis S Veskoukis, Dimitrios Stagos, Leandros A Skaltsounis, Dimitrios Kouretas
Coffee is one of the most highly consumed beverages with potential beneficial health implications, however its molecular mechanism of action has not been completely elucidated yet. To that cause, the polyphenolic composition of different coffee extracts (from Light, Medium and Dark roasts as well as green beans) was examined by UHPLC-HRMS analysis, indicating chlorogenic acids isomers as the main constituents. In the following step, the toxicity of the extracts was tested in myoblasts and endothelial cells and differential toxicity of green and roasted samples was displayed as the myoblasts were more sensitive to green coffee extracts, in contrast to the endothelial cells...
February 13, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29452187/purification-of-extra-cellular-poly-%C3%AE-glutamic-acid-as-an-antibacterial-agent-using-anion-exchange-chromatography
#20
M Ijadi Bajestani, S M Mousavi, S B Mousavi, A Jafari, S A Shojaosadati
BLAST analysis of the 16S rRNA gene sequence for the newly isolated bacterium, revealed significant identity (99.5%) with Bacillus sonorensis [Ijadi Bajestani, M., et al., International Journal of Biological Macromolecules, 2017. 96: p. 100-110]. According to the literature review for closely related species of Bacillus sonorensis, the production of poly-γ-glutamic acid (γ-PGA) as an extra cellular biopolymer was investigated for the isolated bacteria which is deposited in IBRC (Iranian Biological Resource Center) as Bacillus sp...
February 13, 2018: International Journal of Biological Macromolecules
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