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https://www.readbyqxmd.com/read/28350981/asymmetric-notch-amplification-to-secure-stem-cell-identity
#1
Anthony M Rossi, Claude Desplan
Stem cells self-renew and produce progenitors with limited proliferative potential. Reporting in Developmental Cell, Liu et al. (2017) demonstrate that in some neural stem cells, Notch activity is asymmetrically amplified by a positive feedback loop with the super elongation complex (SEC) to quickly differentiate between stem cells and progenitors.
March 27, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28345159/stereoselective-catalytic-synthesis-of-active-pharmaceutical-ingredients-in-homemade-3d-printed-mesoreactors
#2
Sergio Rossi, Riccardo Porta, Davide Brenna, Alessandra Puglisi, Maurizio Benaglia
3D-printed flow reactors were designed, fabricated from different materials (PLA, HIPS, nylon), and used for a catalytic stereoselective Henry reaction. The use of readily prepared and tunable 3D-printed reactors enabled the rapid screening of devices with different sizes, shapes, and channel dimensions, aimed at the identification of the best-performing reactor setup. The optimized process afforded the products in high yields, moderate diastereoselectivity, and up to 90 % ee. The method was applied to the continuous-flow synthesis of biologically active chiral 1,2-amino alcohols (norephedrine, metaraminol, and methoxamine) through a two-step sequence combining the nitroaldol reaction with a hydrogenation...
March 27, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28344452/the-effects-of-a-sports-nutrition-education-intervention-on-nutritional-status-sport-nutrition-knowledge-body-composition-and-performance-during-off-season-training-in-ncaa-division-i-baseball-players
#3
Fabrício Eduardo Rossi, Andrew Landreth, Stacey Beam, Taylor Jones, Layne Norton, Jason Michael Cholewa
This study investigated the effects of a sport nutrition education intervention (SNEI) on dietary intake, knowledge, body composition, and performance in NCAA Division I baseball players. Resistance trained NCAA Division I baseball players (82.4 ± 8.2 kg; 1.83 ± 0.06 m; 13.7 ± 5 % body fat) participated in the study during 12 weeks of off-season training. Fifteen players volunteered for SNEI while 15 players matched for position served as controls (C) for body composition and performance. The nutrition intervention group (NI) received a 90 min SNEI encompassing energy intake (Kcal), carbohydrate (CHO), protein (PRO), fat, food sources, and hydration...
March 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28344082/circ-znf609-is-a-circular-rna-that-can-be-translated-and-functions-in-myogenesis
#4
Ivano Legnini, Gaia Di Timoteo, Francesca Rossi, Mariangela Morlando, Francesca Briganti, Olga Sthandier, Alessandro Fatica, Tiziana Santini, Adrian Andronache, Mark Wade, Pietro Laneve, Nikolaus Rajewsky, Irene Bozzoni
Circular RNAs (circRNAs) constitute a family of transcripts with unique structures and still largely unknown functions. Their biogenesis, which proceeds via a back-splicing reaction, is fairly well characterized, whereas their role in the modulation of physiologically relevant processes is still unclear. Here we performed expression profiling of circRNAs during in vitro differentiation of murine and human myoblasts, and we identified conserved species regulated in myogenesis and altered in Duchenne muscular dystrophy...
March 16, 2017: Molecular Cell
https://www.readbyqxmd.com/read/28343765/human-cardiac-progenitor-cells-with-regenerative-potential-can-be-isolated-and-characterized-from-3d-electro-anatomic-guided-endomyocardial-biopsies
#5
Domenico D'Amario, Antonio Maria Leone, Maria Lucia Narducci, Costantino Smaldone, Dalgisio Lecis, Frediano Inzani, Marco Luciani, Andrea Siracusano, Federica La Neve, Melissa Manchi, Gemma Pelargonio, Francesco Perna, Piergiorgio Bruno, Massimo Massetti, Dario Pitocco, Donato Cappetta, Grazia Esposito, Konrad Urbanek, Antonella De Angelis, Francesco Rossi, Roberto Piacentini, Giulia Angelini, Domenica Donatella Li Puma, Claudio Grassi, Elisa De Paolis, Ettore Capoluongo, Valentina Silvestri, Biagio Merlino, Riccardo Marano, Filippo Crea
AIMS: In the present study, we aimed to develop a percutaneous approach and a reproducible methodology for the isolation and expansion of Cardiac Progenitor Cells (CPCs) from EndoMyocardial Biopsies (EMB) in vivo. Moreover, in an animal model of non-ischemic heart failure (HF), we would like to test whether CPCs obtained by this methodology may engraft the myocardium and differentiate. METHODS AND RESULTS: EMB were obtained using a preformed sheath and a disposable bioptome, advanced via right femoral vein in 12 healthy mini pigs, to the right ventricle...
March 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28343108/the-effects-of-modified-versus-unmodified-wheat-gluten-administration-in-patients-with-celiac-disease
#6
Mariacatia Marino, Rossella Casale, Raffaele Borghini, Sara Di Nardi, Giuseppe Donato, Antonio Angeloni, Salvatore Moscaritolo, Lorenza Grasso, Giuseppe Mazzarella, Marco Di Tola, Mauro Rossi, Antonio Picarelli
Celiac disease (CD) treatment requires a gluten-free diet (GFD), although alternative approaches have been proposed. Modification of gliadin peptides using microbial transglutaminase (mTG) inhibits their ability to induce immune response in vitro. Our aim was to evaluate the safety of mTG-modified wheat flour ingestion in CD patients. Twenty-one CD patients in remission were randomized to receive mTG-modified (n=11) or unmodified (n=10) wheat flour rusks, in double-blind fashion. Monthly, patients completed a symptom questionnaire...
March 23, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28342788/analytical-ultracentrifugation-for-analysis-of-doxorubicin-loaded-liposomes
#7
Dora Mehn, Patrizia Iavicoli, Noelia Cabaleiro, Sven Even Borgos, Fanny Caputo, Otmar Geiss, Luigi Calzolai, François Rossi, Douglas Gilliland
Analytical ultracentrifugation (AUC) is a powerful tool for the study of particle size distributions and interactions with high accuracy and resolution. In this work, we show how the analysis of sedimentation velocity data from the AUC can be used to characterize nanocarrier drug delivery systems used in nanomedicine. Nanocarrier size distribution and the ratio of free versus nanoparticle-encapsulated drug in a commercially available liposomal doxorubicin formulation are determined using interference and absorbance based AUC measurements and compared with results generated with conventional techniques...
March 22, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28342334/oncogene-addiction-in-non-small-cell-lung-cancer-focus-on-ros1-inhibition
#8
REVIEW
Francesco Facchinetti, Giulio Rossi, Emilio Bria, Jean-Charles Soria, Benjamin Besse, Roberta Minari, Luc Friboulet, Marcello Tiseo
Detection of molecular aberrations driving the biology and the clinical behavior of advanced non-small cell lung cancer (NSCLC) allows the adoption of specific therapeutic strategies dramatically impacting disease courses. Among these, ROS1 rearrangements are present in 1-2% of lung adenocarcinomas. Thanks to similarities between ALK and ROS1 oncogenes, lessons inferred from ALK can be applied to ROS1-positive NSCLC; nevertheless, disparities exist between diseases mastered by these two fusion genes. In the absence of more common genetic alterations detected in NSCLC (e...
March 12, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28342310/silver-nanoparticles-synthesized-and-coated-with-pectin-an-ideal-compromise-for-anti-bacterial-and-anti-biofilm-action-combined-with-wound-healing-properties
#9
P Pallavicini, C R Arciola, F Bertoglio, S Curtosi, G Dacarro, A D'Agostino, F Ferrari, D Merli, C Milanese, S Rossi, A Taglietti, M Tenci, L Visai
The synthesis of Ag nanoparticles from Ag(+) has been investigated, with pectin acting both as reductant and coating.∼100% Ag(+) to Ag(0) one-pot conversion was obtained, yielding p-AgNP, i.e. an aqueous solution of pectin-coated spherical Ag nanoparticles (d=8.0±2.6nm), with a<1ppm concentration of free Ag(+) cation. Despite the low free Ag(+) concentration and low Ag(+) release with time, the nature of the coating allows p-AgNP to exert excellent antibacterial and antibiofilm actions, comparable to those of ionic silver, tested on E...
March 18, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28342218/histological-assessment-of-regenerative-endodontic-treatment-in-animal-studies-with-different-scaffolds-a-systematic-review
#10
Milad Altaii, Lindsay Richards, Giampiero Rossi-Fedele
BACKGROUND/AIM: The concept of regenerative endodontic procedures remains controversial. The aim of this study was to evaluate the histology of the tissues formed in immature animal teeth with necrotic and infected pulps after attempted endodontic regeneration procedures using different scaffolds. DESIGN: A systematic electronic literature search was performed in PubMed, Web of Science, Scopus, EMBASE, DOSS and Cochrane Library databases. The terms used were a combination of the following: 'immature permanent necrotic tooth or teeth' or 'open apex or apices' and 'regeneration or revitalization or revascularization' and 'histology'...
March 24, 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/28339971/intracardiac-echocardiography-catheter-guided-zero-fluoroscopy-transeptal-puncture-technique-for-ablation-of-left-sided-accessory-pathway-in-a-pregnant-woman
#11
Luca Rossi, Diego Penela, Giovanni Quinto Villani
No abstract text is available yet for this article.
March 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339145/respiratory-syncytial-virus-host-interaction-in-the-pathogenesis-of-bronchiolitis-and-its-impact-on-respiratory-morbidity-in-later-life
#12
REVIEW
Giovanni A Rossi, Andrew A Colin
Rossi GA, Colin AA(.) Respiratory syncytial virus - host interaction in the pathogenesis of bronchiolitis and its impact on respiratory morbidity in later life. Pediatr Allergy Immunol. Respiratory syncytial virus (RSV) is the most common agent of severe airway disease in infants and young children. Large epidemiologic studies have demonstrated a clear relationship between RSV infection and subsequent recurrent wheezing and asthma into childhood, thought to be predominantly related to long-term changes in neuroimmune control of airway tone rather than to allergic sensitization...
March 24, 2017: Pediatric Allergy and Immunology
https://www.readbyqxmd.com/read/28338976/synchronisms-between-bud-and-cambium-phenology-in-black-spruce-early-flushing-provenances-exhibit-early-xylem-formation
#13
Magali Perrin, Sergio Rossi, Nathalie Isabel
Bud and cambial phenology represent the adaptation of species to the local environment that allows the growing season to be maximized while minimizing the risk of frost for the developing tissues. The temporal relationship between the apical and radial meristems can help in the understanding of tree growth as a whole process. The aim of this study was to compare cambial phenology in black spruce (Picea mariana (Mill.) B.S.P.) provenances classified as early and late bud flushing. The different phases of cambial phenology were assessed on wood microcores sampled weekly from April to October in 2014 and 2015 from 61 trees growing in a provenance trial in Quebec, Canada...
March 3, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28338636/survey-on-urinary-levels-of-aflatoxins-in-professionally-exposed-workers
#14
Fulvio Ferri, Carlo Brera, Barbara De Santis, Giorgio Fedrizzi, Tiziana Bacci, Lorena Bedogni, Sauro Capanni, Giorgia Collini, Enrica Crespi, Francesca Debegnach, Patrizia Ferdenzi, Angelo Gargano, Daniela Gattei, Ferdinando Luberto, Ines Magnani, Massimo Giuseppe Magnani, Pamela Mancuso, Simonetta Menotta, Stefania Mozzanica, Milva Olmi, Giuseppe Ombrini, Orietta Sala, Sabina Soricelli, Massimo Vicentini, Paolo Giorgi Rossi
Feed mill workers may handle or process maize contaminated with aflatoxins (AFs). This condition may lead to an unacceptable intake of toxins deriving from occupational exposure. This study assessed the serological and urinary levels of AFs in workers exposed to potentially contaminated dusts in two mills. From March to April 2014, blood and urine samples were collected, on Monday and Friday morning of the same working week from 29 exposed workers and 30 non-exposed controls. AFs (M₁, G₂, G₁, B₁, B₂) and aflatoxicol (AFOH) A were analyzed...
March 24, 2017: Toxins
https://www.readbyqxmd.com/read/28338625/-r-aloesaponol-iii-8-methyl-ether-from-eremurus-persicus-a-novel-compound-against-leishmaniosis
#15
Daniela Rossi, Karzan Mahmood Ahmed, Raffaella Gaggeri, Serena Della Volpe, Lauretta Maggi, Giuseppe Mazzeo, Giovanna Longhi, Sergio Abbate, Federica Corana, Emanuela Martino, Marisa Machado, Raquel Varandas, Maria do Céu Sousa, Simona Collina
Leishmaniosis is a neglected tropical disease which affects several millions of people worldwide. The current drug therapies are expensive and often lack efficacy, mainly due to the development of parasite resistance. Hence, there is an urgent need for new drugs effective against Leishmania infections. As a part of our ongoing study on the phytochemical characterization and biological investigation of plants used in the traditional medicine of western and central Asia, in the present study, we focused on Eremurus persicus root extract in order to evaluate its potential in the treatment of leishmaniosis...
March 24, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28337172/bone-marrow-derived-cell-accumulation-in-the-spinal-cord-is-independent-of-peripheral-mobilization-in-a-mouse-model-of-amyotrophic-lateral-sclerosis
#16
Kyle Peake, John Manning, Coral-Ann Lewis, Kevin Tran, Fabio Rossi, Charles Krieger
Bone marrow-derived cells (BMDCs) are capable of migrating across the blood-brain barrier (BBB) and accumulating in the central nervous system (CNS) when transplanted into recipients conditioned with whole-body irradiation or chemotherapy. We used the chemotherapeutic agents busulfan and treosulfan to condition recipient mice for transplantation with bone marrow (BM) cells isolated from donor mice ubiquitously expressing green fluorescent protein. We attempted to increase the accumulation of BMDCs in the CNS by mobilization of BMDCs using either, or both, granulocyte colony-stimulating factor (GCSF) or plerixafor (AMD3100)...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28337083/continuous-infusion-etomidate-in-a-patient-receiving-extracorporeal-membrane-oxygenation
#17
Joseph M LaRochelle, Bonnie Desselle, Janet L Rossi
We describe a 16-year-old, 65-kg male deployed on extracorporeal membrane oxygenation (ECMO) for refractory respiratory failure secondary to ingestion of multiple substances. During his ECMO course, standard sedative and analgesic strategies failed and alternative medications were used. The patient received various dosages of fentanyl, morphine, hydromorphone, clonidine patches, dexmedetomidine, lorazepam, methadone, pentobarbital, olanzapine, and propofol. Despite administration of multiple agents, on day 29 of ECMO the patient experienced elevated blood pressures due to agitation, and continuous infusion etomidate was started...
January 2017: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/28336953/palmitoylethanolamide-induces-microglia-changes-associated-with-increased-migration-and-phagocytic-activity-involvement-of-the-cb2-receptor
#18
F Guida, L Luongo, S Boccella, M E Giordano, R Romano, G Bellini, I Manzo, A Furiano, A Rizzo, R Imperatore, F A Iannotti, E D'Aniello, F Piscitelli, F Sca Rossi, L Cristino, V Di Marzo, V de Novellis, S Maione
The endogenous fatty acid amide palmitoylethanolamide (PEA) has been shown to exert anti-inflammatory actions mainly through inhibition of the release of pro-inflammatory molecules from mast cells, monocytes and macrophages. Indirect activation of the endocannabinoid (eCB) system is among the several mechanisms of action that have been proposed to underlie the different effects of PEA in vivo. In this study, we used cultured rat microglia and human macrophages to evaluate whether PEA affects eCB signaling. PEA was found to increase CB2 mRNA and protein expression through peroxisome proliferator-activated receptor-α (PPAR-α) activation...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28336372/doxorubicin-targets-multiple-players-a-new-view-of-an-old-problem
#19
REVIEW
Donato Cappetta, Francesca Rossi, Elena Piegari, Federico Quaini, Liberato Berrino, Konrad Urbanek, Antonella De Angelis
Anthracycline cardiotoxicity remains a serious problem in paediatric and adult cancer survivors, and the advancement of cardio-oncology is a necessary step for an effective care of the patients that experience adverse cardiovascular effects. In this review, we discuss the multiple instruments used by clinicians that constitute the current strategies for primary and secondary prevention aiming at contrasting the onset of early and late doxorubicin-induced cardiotoxic events. The importance of early detection of cardiotoxicity and the following pharmacological therapy has been acknowledged with the emphasis put on impaired diastolic function, an increasingly recognized precocious sign of doxorubicin cardiotoxicity with an emerging scientific and clinical interest...
March 20, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28336229/arthroscopic-in-situ-repair-of-partial-bursal-rotator-cuff-tears-without-acromioplasty
#20
Maximiliano Ranalletta, Luciano A Rossi, Nicolas A Atala, Bernardo A B Altieri, Gastón D Maignon, Santiago L Bongiovanni
PURPOSE: To evaluate functional outcomes and complications in a consecutive group of patients with partial bursal rotator cuff tears (PBRCTs) treated with insitu repair without acromioplasty. METHODS: Seventy-four patients who had undergone an arthroscopic single row in situ repair for bursal-sided rotator cuff tears were evaluated. Clinical assessment consisted of glenohumeral range of motion measurement, the American Shoulder and Elbow Surgeons score, and the University of California at Los Angeles score...
March 20, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
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