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https://www.readbyqxmd.com/read/28548095/metabolic-engineering-of-saccharomyces-cerevisiae-for-production-of-very-long-chain-fatty-acid-derived-chemicals
#1
Tao Yu, Yongjin J Zhou, Leonie Wenning, Quanli Liu, Anastasia Krivoruchko, Verena Siewers, Jens Nielsen, Florian David
Production of chemicals and biofuels through microbial fermentation is an economical and sustainable alternative for traditional chemical synthesis. Here we present the construction of a Saccharomyces cerevisiae platform strain for high-level production of very-long-chain fatty acid (VLCFA)-derived chemicals. Through rewiring the native fatty acid elongation system and implementing a heterologous Mycobacteria FAS I system, we establish an increased biosynthesis of VLCFAs in S. cerevisiae. VLCFAs can be selectively modified towards the fatty alcohol docosanol (C22H46O) by expressing a specific fatty acid reductase...
May 26, 2017: Nature Communications
https://www.readbyqxmd.com/read/28547322/metabolic-engineering-of-saccharomyces-cerevisiae-for-production-of-germacrene-a-a-precursor-of-beta-elemene
#2
Yating Hu, Yongjin J Zhou, Jichen Bao, Luqi Huang, Jens Nielsen, Anastasia Krivoruchko
Beta-elemene, a sesquiterpene and the major component of the medicinal herb Curcuma wenyujin, has antitumor activity against various types of cancer and could potentially serve as a potent antineoplastic drug. However, its current mode of production through extraction from plants has been inefficient and suffers from limited natural resources. Here, we engineered a yeast cell factory for the sustainable production of germacrene A, which can be transformed to beta-elemene by a one-step chemical reaction in vitro...
May 25, 2017: Journal of Industrial Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28544887/silver-nanoparticles-in-seawater-a-dynamic-mass-balance-at-part-per-trillion-silver-concentrations
#3
Claudio Toncelli, Kyriaki Mylona, Ioanna Kalantzi, Anastasia Tsiola, Paraskevi Pitta, Manolis Tsapakis, Spiros A Pergantis
This study investigates the dynamic processes affecting silver (Ag) nanoparticles that have been spiked into seawater at environmentally relevant concentrations (200 and 2000ngAgL(-1)). Seawater samples were taken at regular time intervals from multiple microcosm tanks and analysed rapidly, without any sample preparation, using a recently developed flow injection on-line dilution single particle inductively coupled plasma mass spectrometry method. Dissolution was found to be the predominant process of Ag nanoparticle transformation, with its rate being influenced by the type and thickness of the nanoparticle organic coating...
May 22, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28542740/plasma-micrornas-as-biomarkers-of-pancreatic-cancer-risk-in-a-prospective-cohort-study
#4
Eric J Duell, Leila Lujan-Barroso, Núria Sala, Samantha Deitz McElyea, Kim Overvad, Anne Tjonneland, Anja Olsen, Elisabete Weiderpass, Lill-Tove Busund, Line Moi, David Muller, Paolo Vineis, Dagfinn Aune, Giuseppe Matullo, Alessio Naccarati, Salvatore Panico, Giovanna Tagliabue, Rosario Tumino, Domenico Palli, Rudolf Kaaks, Verena A Katzke, Heiner Boeing, H B As Bueno-de-Mesquita, Petra H Peeters, Antonia Trichopoulou, Pagona Lagiou, Anastasia Kotanidou, Ruth C Travis, Nick Wareham, Kay-Tee Khaw, Jose Ramon Quiros, Miguel Rodríguez-Barranco, Miren Dorronsoro, María-Dolores Chirlaque, Eva Ardanaz, Gianluca Severi, Marie-Christine Boutron-Ruault, Vinciane Rebours, Paul Brennan, Marc Gunter, Ghislaine Scelo, Greg Cote, Stuart Sherman, Murray Korc
Non-invasive biomarkers for early pancreatic ductal adenocarcinoma (PDAC) diagnosis and disease risk stratification are greatly needed. We conducted a nested case-control study within the Prospective Investigation into Cancer and Nutrition (EPIC) cohort to evaluate pre-diagnostic microRNAs (miRs) as biomarkers of subsequent PDAC risk. A panel of eight miRs (miR-10a, -10b, -21-3p, -21-5p, -30c, -106b, -155, and -212) based on previous evidence from our group was evaluated in 225 microscopically confirmed PDAC cases and 225 controls matched on center, sex, fasting status, and age/date/time of blood collection...
May 19, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28541751/a-novel-experimental-model-of-colorectal-endometriosis
#5
Anastasia Prodromidou, Vasilios Pergialiotis, Kitty Pavlakis, Laskarina Maria Korou, Maximos Frountzas, Dimitrios Dimitroulis, Georgios Vaos, Despina N Perrea
PURPOSE: Endometriosis is a disease that affects 6-10% of the female population, mainly women of reproductive age, and causes a variety of cyclic symptoms. Deep infiltrating endometriosis and in particular bowel involvement presents a challenge for modern surgery. To date, there are no experimental animal models in this field, demonstrating experimental induction of endometriosis directly attached to surface of the colon imitating human colorectal endometriosis; hence, the implementation of novel pharmaceutical and surgical strategies for the management of colorectal endometriosis is mainly limited to clinical studies...
May 25, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28541082/correction-to-christodoulou-et-al-2016
#6
(no author information available yet)
Reports an error in "Relation of White-Matter Microstructure to Reading Ability and Disability in Beginning Readers" by Joanna A. Christodoulou, Jack Murtagh, Abigail Cyr, Tyler K. Perrachione, Patricia Chang, Kelly Halverson, Pamela Hook, Anastasia Yendiki, Satrajit Ghosh and John D. E. Gabrieli (Neuropsychology, Advanced Online Publication, Mar 7, 2016, np). In the original article, errors in the dataset owing to two incorrect scores have skewed results. Corrections to the Results section, Table 1, and Figure three are provided...
May 25, 2017: Neuropsychology
https://www.readbyqxmd.com/read/28540354/data-on-the-exon-intron-organization-of-genes-coding-for-b-cell-receptor-like-proteins
#7
Sergey Y Morozov, Anna V Pankratenko, Anastasia K Atabekova, Andrey G Solovyev
B-cell receptor-associated protein (BAP) family plays important roles in the ER homeostasis and stress responses of eukaryotic cells [1]. We reported the analysis of plant BAP-like (PBL) genes and the encoded proteins of higher land plants [2]. The origin and functional divergence of these genes among all eukaryotes, however, are poorly studied, which impedes our understanding of the functional relationships and diversity among BAP-like proteins. One possible reason for the potential functional diversity may be the differences in the exon-intron structure of PBL genes...
June 2017: Data in Brief
https://www.readbyqxmd.com/read/28538140/comparison-of-policies-for-recognising-and-responding-to-clinical-deterioration-across-five-victorian-health-services
#8
Julie Considine, Anastasia F Hutchison, Helen Rawson, Alison M Hutchinson, Tracey Bucknall, Trisha Dunning, Mari Botti, Maxine M Duke, Maryann Street
Objectives The aim of the present study was to describe and compare organisational guidance documents related to recognising and responding to clinical deterioration across five health services in Victoria, Australia.Methods Guidance documents were obtained from five health services, comprising 13 acute care hospitals, eight subacute care hospitals and approximately 5500 beds. Analysis was guided by a specific policy analysis framework and a priori themes.Results In all, 22 guidance documents and five graphic observation and response charts were reviewed...
May 25, 2017: Australian Health Review: a Publication of the Australian Hospital Association
https://www.readbyqxmd.com/read/28536513/proximity-of-substantia-nigra-microstimulation-to-putative-gabaergic-neurons-predicts-modulation-of-human-reinforcement-learning
#9
Ashwin G Ramayya, Isaac Pedisich, Deborah Levy, Anastasia Lyalenko, Paul Wanda, Daniel Rizzuto, Gordon H Baltuch, Michael J Kahana
Neuronal firing in the substantia nigra (SN) immediately following reward is thought to play a crucial role in human reinforcement learning. As in Ramayya et al. (2014a) we applied microstimulation in the SN of patients undergoing deep brain stimulation (DBS) for the treatment of Parkinson's disease as they engaged in a two-alternative reinforcement learning task. We obtained microelectrode recordings to assess the proximity of the electrode tip to putative dopaminergic and GABAergic SN neurons and applied stimulation to assess the functional importance of these neuronal populations for learning...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28536306/chronic-lymphocytic-leukemia-with-mutated-ighv4-34-receptors-shared-and-distinct-immunogenetic-features-and-clinical-outcomes
#10
Aliki Xochelli, Panagiotis Baliakas, Ioannis Kavakiotis, Andreas Agathangelidis, Lesley-Ann Sutton, Eva Minga, Stavroula Ntoufa, Eugen Tausch, Xiao-Jie Yan, Tait D Shanafelt, Karla Plevova, Myriam Boudjogra, Davide Rossi, Zadie Davis, Alba Navarro, Yorick Sandberg, Fie Juhl Vojdeman, Lydia Scarfò, Niki Stavroyianni, Andrey Sudarikov, Silvio Veronese, Tatiana Tzenou, Teodora Karan Djurasevic, Mark A Catherwood, Dirk Kienle, Maria Chatzouli, Monica Facco, Jasmin Bahlo, Christiane Pott, Lone Bredo Pedersen, Larry Mansouri, Karin E Smedby, Charles C Chu, Véronique Giudicelli, Marie-Paule Lefranc, Panagiotis Panagiotidis, Gunnar Juliusson, Achilles Anagnostopoulos, Ioannis Vlahavas, Darko Antic, Livio Trentin, Marco Montillo, Carsten U Niemann, Hartmut Dohner, Anton W Langerak, Sarka Pospisilova, Michael Hallek, Elias Campo, Nicholas- Chiorazzi, Nikos Maglaveras, David Oscier, Gianluca Gaidano, Diane F Jelinek, Stephan Stilgenbauer, Ioanna Chouvarda, Nikos Darzentas, Chrysoula Belessi, Frédéric Davi, Anastasia Hadzidimitriou, Richard Rosenquist, Paolo Ghia, Kostas Stamatopoulos
We sought to investigate if B cell receptor immunoglobulin (BcR IG) stereotypy is associated with particular clinicobiological features amongst chronic lymphocytic leukemia (CLL) patients expressing mutated BcR IG (M-CLL) encoded by the IGHV4-34 gene, and also ascertain whether these associations could refine prognostication.<br /> <p>Experimental Design: In a series of 19,907 CLL cases with available immunogenetic information, we identified 339 IGHV4-34 expressing cases assigned to one of the four largest stereotyped M-CLL subsets, namely subsets #4, #16, #29 and #201, and investigated in detail their clinicobiological characteristics and disease outcomes...
May 23, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28535087/cytotoxic-t-cells-in-chronic-idiopathic-neutropenia-express-restricted-antigen-receptors
#11
Semeli Mastrodemou, Evangelia Stalika, Anna Vardi, Katerina Gemenetzi, Michalis Spanoudakis, Maria Karypidou, Irene Mavroudi, Anastasia Hadzidimitriou, Catherine Stavropoulos-Giokas, Helen A Papadaki, Kostas Stamatopoulos
Chronic idiopathic neutropenia (CIN) is an acquired disorder of granulopoiesis characterized by female predominance and mostly uncomplicated course. Crucial to CIN pathophysiology is the presence of activated T lymphocytes with myelosuppressive properties in both peripheral blood (PB) and bone marrow (BM). We systematically profiled the T cell receptor beta chain (TRB) gene repertoire in CD8(+) cells of 34 CIN patients through subcloning/Sanger sequencing analysis of TRBV-TRBD-TRBJ gene rearrangements. Remarkable repertoire skewing and oligoclonality were observed, along with shared clonotypes between different patients, alluding to antigen selection...
May 23, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28534382/meta-meta-analysis-a-paradigm-in-the-case-of-surgical-publications
#12
Georgios C Sotiropoulos, Nikolaos Machairas, Stylianos Kykalos, Paraskevas Stamopoulos, Anastasia Prodromidou, Athanasios Katsargyris
PURPOSE: Meta-analyses are considered to provide level I-II evidence. Based on this premise, several statements have been developed to standardize guidelines and optimize results. The purpose of this study was to investigate the quality of the information delivered by meta-analyses. METHODS: Meta-analyses published in Annals of Surgery during an 11-year period were reviewed whereas individual publications of each meta-analysis were assessed. An Excel database encompassing 29 parameters was constructed based on the Quality of Reporting of Meta-analyses (QUOROM) statement...
March 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28534048/the-first-report-of-cadasil-in-peru-olfactory-dysfunction-on-initial-presentation
#13
Anastasia Vishnevetsky, Miguel Inca-Martinez, Karina Milla-Neyra, Danny Moises Barrientos-Iman, Ivan Cornejo-Herrera, Carlos Cosentino, Mario Cornejo-Olivas
Cerebral autosomal dominant arteriopathy with subcortical infarcts and leucoencephalopathy (CADASIL) is a rare, heritable, small vessel vascular disease caused by mutations in the Notch3 gene that is characterized by migraines, subcortical vascular events, cognitive decline, and mood disturbances. However, many CADASIL cases present with unusual symptoms such as status epilepticus, a movement disorder, or sensory dysfunction. This study describes the clinical, genetic, and radiologic characteristics of a Peruvian family with CADASIL in which multiple family members presented with severe olfactory deficits...
December 2016: ENeurologicalSci
https://www.readbyqxmd.com/read/28531642/nutritional-assessment-of-obese-patients-before-and-after-laparoscopic-sleeve-gastrectomy-lsg
#14
Ilektra Fotopoulou, Konstantina Κonstantinou, Anastasia Markaki, Ioannis Melissas
No abstract text is available yet for this article.
June 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28531621/nutritional-status-of-greek-cirrhotic-patients
#15
Maria Christodoulaki, Rania Chaireti, Josef Galanos, Dimitra Sifaki-Pistolla, Aikaterini Mantaka, Mairi Koulentaki, Anastasia Markaki
No abstract text is available yet for this article.
June 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28531605/estimation-of-malnutrition-prevalence-in-ibd-patients-in-the-community
#16
Anastasia Nicolaou, Giagkos Lavranos
No abstract text is available yet for this article.
June 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28531601/evaluation-of-the-efficacy-of-nutritional-screening-tools-for-hospitalized-paediatric-patients
#17
Olga Cheirakaki, Anastasia Hatzoglou, Ourania Zerva, Christina Katsagoni, Alexandra Koulieri, Konstantina Loizou, Anastasia Tzinieri, Emmanouela Vasileiadi, Maria Toilou, Meropi Kontogianni
No abstract text is available yet for this article.
June 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28531592/diet-and-health-in-post-byzantine-society-a-socio-historical-approach
#18
Anastasia K Kadda
No abstract text is available yet for this article.
June 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28531585/predictive-validity-of-core-index-in-predicting-obesity-in-a-national-representative-sample-of-children-and-adolescents-in-greece
#19
Alexandra Georgiou, Elpida Vlachopapadopoulou, George Moschonis, Theodora Psaltopoulou, Fotini Karachaliou, Dimitra Koutsouki, Grigoris Bogdanis, Vilelmini Karagianni, Anastasia Papadopoulou, Yannis Manios, Aggelos Chatzakis, Stefanos Michalakos
No abstract text is available yet for this article.
June 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28531582/childhood-obesity-risk-assessment-based-on-body-image-school-environment-factors-and-family-socio-demographic-characteristics-sorei-index
#20
Manolis Birbilis, Dimitrios Bougatsas, Anastasia Skiada
No abstract text is available yet for this article.
June 2016: Clinical Nutrition ESPEN
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