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https://www.readbyqxmd.com/read/28449301/the-profile-and-dynamics-of-rna-modifications-in-animals
#1
Pieter van Delft, Alper Akay, Sabrina M Huber, Christoph Bueschl, Konrad L M Rudolph, Tomás Di Domenico, Rainer Schuhmacher, Eric A Miska, Shankar Balasubramanian
More than a hundred distinct modified nucleosides have been identified in RNA, but little is known about their distribution across different organisms, their dynamic nature and their response to cellular and environmental stress. Mass-spectrometry-based methods have been at the forefront of identifying and quantifying modified nucleosides. However, they often require synthetic reference standards, which do not exist in the case of many modified nucleosides, and this therefore impedes their analysis. Here we use a metabolic labelling approach to achieve rapid generation of bio-isotopologues of the complete Caenorhabditis elegans transcriptome and its modifications and use them as reference standards to characterise the RNA modification profile in this multicellular organism through an untargeted liquid-chromatography tandem high-resolution mass spectrometry (LC-HRMS) approach...
March 16, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28447935/host-selected-mutations-converging-on-a-global-regulator-drive-an-adaptive-leap-by-bacteria-to-symbiosis
#2
Molly Sabrina Pankey, Randi L Foxall, Ian M Ster, Lauren A Perry, Brian M Schuster, Rachel A Donner, Matthew Coyle, Vaughn S Cooper, Cheryl A Whistler
Host immune and physical barriers protect against pathogens but also impede the establishment of essential symbiotic partnerships. To reveal mechanisms by which beneficial organisms adapt to circumvent host defenses, we experimentally evolved ecologically distinct bioluminescent Vibrio fischeri through Euprymna scolopes squid light organs. Serial squid passaging of bacteria produced eight distinct mutations in the binK sensor kinase gene that conferred an exceptional selective advantage demonstrated through both empirical and theoretical analysis...
April 27, 2017: ELife
https://www.readbyqxmd.com/read/28447175/present-and-projected-future-mean-radiant-temperature-for-three-european-cities
#3
Sofia Thorsson, David Rayner, Fredrik Lindberg, Ana Monteiro, Lutz Katzschner, Kevin Ka-Lun Lau, Sabrina Campe, Antje Katzschner, Janina Konarska, Shiho Onomura, Sara Velho, Björn Holmer
Present-day and projected future changes in mean radiant temperature, T mrt in one northern, one mid-, and one southern European city (represented by Gothenburg, Frankfurt, and Porto), are presented, and the concept of hot spots is adopted. Air temperature, T a , increased in all cities by 2100, but changes in solar radiation due to changes in cloudiness counterbalanced or exacerbated the effects on T mrt. The number of days with high T mrt in Gothenburg was relatively unchanged at the end of the century (+1 day), whereas it more than doubled in Frankfurt and tripled in Porto...
April 26, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28446499/food-groups-and-risk-of-all-cause-mortality-a-systematic-review-and-meta-analysis-of-prospective-studies
#4
Lukas Schwingshackl, Carolina Schwedhelm, Georg Hoffmann, Anna-Maria Lampousi, Sven Knüppel, Khalid Iqbal, Angela Bechthold, Sabrina Schlesinger, Heiner Boeing
Background: Suboptimal diet is one of the most important factors in preventing early death and disability worldwide.Objective: The aim of this meta-analysis was to synthesize the knowledge about the relation between intake of 12 major food groups, including whole grains, refined grains, vegetables, fruits, nuts, legumes, eggs, dairy, fish, red meat, processed meat, and sugar-sweetened beverages, with risk of all-cause mortality.Design: We conducted a systematic search in PubMed, Embase, and Google Scholar for prospective studies investigating the association between these 12 food groups and risk of all-cause mortality...
April 26, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28445135/micrornas-in-prostate-cancer-an-overview
#5
REVIEW
Daniela Vanacore, Mariarosaria Boccellino, Sabrina Rossetti, Carla Cavaliere, Carmine D'Aniello, Rossella Di Franco, Francesco Jacopo Romano, Micaela Montanari, Elvira La Mantia, Raffaele Piscitelli, Flavia Nocerino, Francesca Cappuccio, Giovanni Grimaldi, Alessandro Izzo, Luigi Castaldo, Maria Filomena Pepe, Maria Gabriella Malzone, Gelsomina Iovane, Gianluca Ametrano, Paola Stiuso, Lucio Quagliuolo, Daniela Barberio, Sisto Perdonà, Paolo Muto, Maurizio Montella, Piera Maiolino, Bianca Maria Veneziani, Gerardo Botti, Michele Caraglia, Gaetano Facchini
Prostate cancer is the second highest cause of cancer mortality after lung tumours. In USA it affects about 2.8 million men and the incidence increases with age in many countries. Therefore, early diagnosis is a very important step for patient clinical evaluation and for a selective and efficient therapy. The study of miRNAs' functions and molecular mechanisms has brought new knowledge in biological processes of cancer. In prostate cancer there is a deregulation of several miRNAs that may function as tumour suppressors or oncogenes...
April 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28444786/targeted-photodynamic-therapy-with-a-folate-sensitizer-assembly-produced-from-mesoporous-silica
#6
Salvatore Sortino, Chunfang Zhou, Damien Afonso, Sabrina Valetti, Adam Feiler, Venera Cardile, Adriana Graziano, Sabrina Conoci
A mesoporous silica material prepared by using folic acid (FA) as a template enables the effective encapsulation of meso-tetrakis(4-carboxyphenyl)porphyrin (TCPP) in its interior. Combination of steady-state and time-resolved absorption and emission spectroscopy demonstrate that FA and TCPP are released from the silica material to aqueous phase in the form of a non-covalent assembly. This assembly does not form by simple mixing of the two components in the absence of silica, suggesting the key role of the material in the assembling process...
April 26, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28444543/cost-analysis-of-incisional-hernia-repair-with-synthetic-mesh-and-biological-mesh-an-italian-study
#7
Sabrina Rampado, Andrea Geron, Giovanni Pirozzolo, Angelica Ganss, Elisa Pizzolato, Romeo Bardini
Repair of an incisional hernia (IH) generates costs on several levels and domains of society. The aim of this study was to make a complete cost analysis of incisional hernia repair (IHR) with synthetic and biological mesh and to compare it with financial reimbursement. Patients were grouped into three levels to determine the complexity of their care, and hence, the costs involved. Group 1 included patients without comorbidities, who underwent a "standard" incisional hernia repair (SIHR), with synthetic mesh...
April 25, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28442582/lx2761-a-sodium-glucose-cotransporter-1-inhibitor-restricted-to-the-intestine-improves-glycemic-control-in-mice
#8
David R Powell, Melinda G Smith, Deon D Doree, Angela L Harris, Jennifer Greer, Christopher M DaCosta, Andrea Thompson, Sabrina Jeter-Jones, Wendy Xiong, Kenneth G Carson, Nicole C Goodwin, Bryce A Harrison, David B Rawlins, Eric D Strobel, Suma Gopinathan, Alan Wilson, Faika Mseeh, Brian Zambrowicz, Zhi-Ming Ding
LX2761 is a potent sodium/glucose cotransporter 1 inhibitor restricted to the intestinal lumen after oral administration. Studies presented here evaluated the effect of orally administered LX2761 on glycemic control in preclinical models. In healthy mice and rats treated with LX2761, blood glucose excursions were lower and plasma total glucagon-like peptide-1 (GLP-1) levels higher after an oral glucose challenge; these decreased glucose excursions persisted even when the glucose challenge occurred 15 hours after LX2761 dosing in ad-lib-fed mice...
April 25, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28442545/peroxisome-proliferator-activated-receptor-%C3%AE-agonists-attenuate-biofilm-formation-by-pseudomonas-aeruginosa
#9
Brahmchetna Bedi, Nicholas M Maurice, Vincent T Ciavatta, K Sabrina Lynn, Zhihong Yuan, Samuel A Molina, Myungsoo Joo, William R Tyor, Joanna B Goldberg, Michael H Koval, C Michael Hart, Ruxana T Sadikot
Pseudomonas aeruginosa is a significant contributor to recalcitrant multidrug- resistant infections, especially in immunocompromised and hospitalized patients. The pathogenic profile of P. aeruginosa is related to its ability to secrete a variety of virulence factors and to promote biofilm formation. Quorum sensing (QS) is a mechanism wherein P. aeruginosa secretes small diffusible molecules, specifically acyl homo serine lactones, such as N-(3-oxo-dodecanoyl)-l-homoserine lactone (3O-C12-HSL), that promote biofilm formation and virulence via interbacterial communication...
April 25, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28442211/leigh-like-neuroimaging-features-associated-with-new-biallelic-mutations-in-opa1
#10
Anna Rubegni, Tiziana Pisano, Giacomo Bacci, Alessandra Tessa, Roberta Battini, Elena Procopio, Sabrina Giglio, Rosa Pasquariello, Filippo Maria Santorelli, Renzo Guerrini, Claudia Nesti
Behr syndrome is characterized by the association of early onset optic atrophy, cerebellar ataxia, pyramidal signs, peripheral neuropathy and mental retardation. Recently, some cases were reported to be caused by biallelic mutations in OPA1. We describe an 11-year-old girl (Pt1) and a 7-year-old boy (Pt2) with cognitive delay, ataxic gait and clinical signs suggestive of a peripheral neuropathy, with onset in early infancy. In Pt1 ocular fundus examination revealed optic disk pallor whereas Pt2 exhibited severe optic atrophy...
April 15, 2017: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/28441765/distinct-fiber-type-signature-in-mouse-muscles-expressing-a-mutant-lamin-a-responsible-for-congenital-muscular-dystrophy-in-a-patient
#11
Alice Barateau, Nathalie Vadrot, Onnik Agbulut, Patrick Vicart, Sabrina Batonnet-Pichon, Brigitte Buendia
Specific mutations in LMNA, which encodes nuclear intermediate filament proteins lamins A/C, affect skeletal muscle tissues. Early-onset LMNA myopathies reveal different alterations of muscle fibers, including fiber type disproportion or prominent dystrophic and/or inflammatory changes. Recently, we identified the p.R388P LMNA mutation as responsible for congenital muscular dystrophy (L-CMD) and lipodystrophy. Here, we asked whether viral-mediated expression of mutant lamin A in murine skeletal muscles would be a pertinent model to reveal specific muscle alterations...
April 24, 2017: Cells
https://www.readbyqxmd.com/read/28441268/lack-of-efficacy-of-infliximab-in-the-treatment-of-primary-sclerosing-cholangitis-in-inflammatory-bowel-diseases-in-childhood
#12
Sabrina Cardile, Manila Candusso, Bronislava Papadatou, Fiammetta Bracci, Daniela Knafelz, Giuliano Torre
No abstract text is available yet for this article.
June 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28440272/corrigendum-pharmacological-inhibition-of-adipose-triglyceride-lipase-corrects-high-fat-diet-induced-insulin-resistance-and-hepatosteatosis-in-mice
#13
Martina Schweiger, Matthias Romauch, Renate Schreiber, Gernot F Grabner, Sabrina Hütter, Petra Kotzbeck, Pia Benedikt, Thomas O Eichmann, Sohsuke Yamada, Oskar Knittelfelder, Clemens Diwoky, Carina Doler, Nicole Mayer, Werner De Cecco, Rolf Breinbauer, Robert Zimmermann, Rudolf Zechner
No abstract text is available yet for this article.
April 25, 2017: Nature Communications
https://www.readbyqxmd.com/read/28440086/debiri-plus-capecitabine-a-treatment-option-for-refractory-liver-dominant-metastases-from-colorectal-cancer
#14
Vincenzo Di Noia, Michele Basso, Valentina Marsico, Eleonora Cerchiaro, Sabrina Rossi, Ettore D'Argento, Antonia Strippoli, Giovanni Schinzari, Roberto Iezzi, Alessandra Cassano, Carlo Barone
AIM: This single institution Phase II study evaluated drug-eluting beads loaded with irinotecan (DEBIRI) plus capecitabine in pretreated patients with colorectal cancer liver metastases. PATIENTS & METHODS: Forty patients with liver-limited or liver-dominant disease, who have failed at least two previous lines of chemotherapy, underwent either four DEBIRI at 2-week interval or two DEBIRI every 4 weeks for bilobar or single-lobe metastases, respectively. Capecitabine was given at 1000 mg/m(2) twice daily on days 1-14 every 3 weeks...
April 25, 2017: Future Oncology
https://www.readbyqxmd.com/read/28439959/chemical-and-biological-aspects-of-nutritional-immunity-perspectives-for-new-anti-infectives-targeting-iron-uptake-systems
#15
Sabine Laschat, Ursula Bilitewski, Joshua Blodgett, Anne-Kathrin Duhme-Klair, Sabrina Dallavalle, Anne Routledge, Rainer Schobert
Upon bacterial infection one of the defense mechanisms of the host is the withdrawal of essential metal ions, in particular iron leading to "nutritional immunity". However, bacteria have evolved strategies to overcome iron starvation, e.g. by stealing iron from the host or other bacteria by specific iron chelators with high binding affinity. Fortunately, these complex interactions between host and pathogen regarding metal homeostasis provide several opportunities for interception and thus allow the development of novel antibacterials...
April 25, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28439520/relationship-between-relative-cerebral-blood-flow-relative-cerebral-blood-volume-and-relative-cerebral-metabolic-rate-of-oxygen-in-the-preterm-neonatal-brain
#16
Mina Nourhashemi, Guy Kongolo, Mahdi Mahmoudzadeh, Sabrina Goudjil, Fabrice Wallois
The mechanisms responsible for coupling between relative cerebral blood flow (rCBF), relative cerebral blood volume (rCBV), and relative cerebral metabolic rate of oxygen ([Formula: see text]), an important function of the microcirculation in preterm infants, remain unclear. Identification of a causal relationship between rCBF-rCBV and [Formula: see text] in preterms may, therefore, help to elucidate the principles of cortical hemodynamics during development. We simultaneously recorded rCBF and rCBV and estimated [Formula: see text] by two independent acquisition systems: diffuse correlation spectroscopy and near-infrared spectroscopy, respectively, in 10 preterms aged between 28 and 35 weeks of gestational age...
April 2017: Neurophotonics
https://www.readbyqxmd.com/read/28439047/functional-human-grin2b-promoter-polymorphism-and-variation-of-mental-processing-speed-in-older-adults
#17
Yang Jiang, Ming Kuan Lin, Gregory A Jicha, Xiuhua Ding, Sabrina L McIlwrath, David W Fardo, Lucas S Broster, Frederick A Schmitt, Richard Kryscio, Robert H Lipsky
We investigated the role of a single nucleotide polymorphism rs3764030 (G>A) within the human GRIN2B promoter in mental processing speed in healthy, cognitively intact, older adults. In vitro DNA-binding and reporter gene assays of different allele combinations in transfected cells showed that the A allele was a gain-of-function variant associated with increasing GRIN2B mRNA levels. We tested the hypothesis that individuals with A allele will have better memory performance (i.e. faster reaction times) in older age...
April 24, 2017: Aging
https://www.readbyqxmd.com/read/28438941/new-macrolide-lincosamide-streptogramin-b-resistance-gene-erm-48-on-the-novel-plasmid-pjw2311-in-staphylococcus-xylosus
#18
Juliette R K Wipf, Matthew C Riley, Stephen A Kania, David A Bemis, Sabrina Andreis, Sybille Schwendener, Vincent Perreten
Whole-genome sequencing of Staphylococcus xylosus strain JW2311 from bovine mastitis milk identified the novel 49.3 kb macrolide-lincosamide-streptogramin B (MLSB) resistance plasmid pJW2311. It contained the macrolide resistance gene mph(C), the macrolide-streptogramin B resistance gene msr(A), and the new MLSB resistance gene erm (48) and could be transformed into S. aureus by electroporation. Functionality of erm (48) was demonstrated by cloning and expression in S. aureus.
April 24, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28434979/synergistic-effects-of-bmp-2-bmp-6-or-bmp-7-with-human-plasma-fibronectin-onto-hydroxyapatite-coatings-a-comparative-study
#19
Isabelle Brigaud, Rémy Agniel, Johanne Leroy Dudal, Sabrina Kellouche, Arnaud Ponche, Tahar Bouceba, Natalia Mihailescu, Mihai Sopronyi, Eric Viguier, Carmen Ristoscu, Felix Sima, Ion N Mihailescu, Ana Claudia O Carreira, Mari Cleide Sogayar, Olivier Gallet, Karine Anselme
Design of new osteoinductive biomaterials to reproduce an optimized physiological environment capable of recruiting stem cells and instructing their fate towards the osteoblastic lineage has become a priority in orthopedic surgery. This work aims at evaluating the bioactivity of BMP combined with human plasma fibronectin (FN/BMP) delivered in solution or coated onto titanium-hydroxyapatite (TiHA) surfaces. Herein, we focus on the comparison of in vitro osteogenic efficacy in mouse C2C12 pre-osteoblasts of three BMP members, namely: BMP-2, BMP-6 and BMP-7...
April 18, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28434805/pressure-ulcers-in-icu-patients-incidence-and-clinical-and-epidemiological-features-a-multicenter-study-in-southern-brazil
#20
Delmiro Becker, Tatiane Cristiana Tozo, Saionara Savaris Batista, Andréa Luciana Mattos, Mirian Carla Bortolamedi Silva, Sabrina Rigon, Rosane Lucia Laynes, Edilaine C Salomão, Karina Drielli Gonçalves Hubner, Silvia Garcia Barros Sorbara, Péricles A D Duarte
OBJECTIVES: To evaluate the incidence and risk factors of pressure ulcers (PU) in adult patients admitted to intensive care units (ICUs), as well as the outcome (including ICU and hospital mortality) of these patients. METHODS: Epidemiological cohort multicenter prospective study, evaluating patients admitted for a period of 31days (June 01 to July 01, 2015) until hospital discharge. Epidemiological and clinical data were collected daily until ICU discharge, as was the incidence of PU, either new or present on admission...
April 20, 2017: Intensive & Critical Care Nursing: the Official Journal of the British Association of Critical Care Nurses
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