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Yann Daniel, Sébastien Habas, Maximilien Cruc
BACKGROUND: Out-of-hospital endotracheal intubation is a frequent procedure for trauma care. Nevertheless, in warm climates, sunlight and heat can interfere with the flow of the usual procedure. They can affect the equipment and hinder the operator. There are few data on this issue. The presentation of this case highlights three common complications that may occur when intubating under a hot and bright sun. CASE REPORT: A 23-year-old man had a car accident in Djibouti, at 11:00 a...
September 2016: Journal of Emergency Medicine
Thu-Phuong Nguyen, Gwendal Cueff, Dwayne D Hegedus, Loïc Rajjou, Leónie Bentsink
Proteomics approaches have been a useful tool for determining the biological roles and functions of individual proteins and identifying the molecular mechanisms that govern seed germination, vigour and viability in response to ageing. In this work the dry seed proteome of four Arabidopsis thaliana genotypes, that carry introgression fragments at the position of seed longevity quantitative trait loci and as a result display different levels of seed longevity, was investigated. Seeds at two physiological states, after-ripened seeds that had the full germination ability and aged (stored) seeds of which the germination ability was severely reduced, were compared...
October 2015: Journal of Experimental Botany
Stéphanie Roullet, Geneviève Freyburger, Maximilien Cruc, Alice Quinart, Laurent Stecken, Magali Audy, Laurence Chiche, François Sztark
Orthotopic liver transplantation (OLT) remains a potentially hemorrhagic procedure. Rotational thromboelastometry (ROTEM) is a point-of-care device used to monitor coagulation during OLT. Whether it allows blood loss and transfusions to be reduced during OLT remains controversial. Excellent correlations and predictive values have been found between ROTEM parameters and fibrinogen. We hypothesized that the use of a ROTEM-based transfusion algorithm during OLT would lead to more fibrinogen transfusion and decreased bleeding and blood transfusion...
February 2015: Liver Transplantation
Timo D Stark, Angel Angelov, Mathias Hofmann, Wolfgang Liebl, Thomas Hofmann
The major carotenoid species isolated from the thermophilic bacterium Thermus thermophilus HB27 have been identified as zeaxanthin-glucoside-fatty acid esters (thermozeaxanthins and thermobiszeaxanthins). Most of the genes of the proposed T. thermophilus carotenoid pathway could be found in the genome, but there is less clarity about the genes which encode the enzymes performing the final carotenoid glycosylation and acylation steps. To get a further insight into the biosynthesis of thermo(bis)zeaxanthins in T...
December 2013: Analytical and Bioanalytical Chemistry
Thushan S Withana-Gamage, Dwayne D Hegedus, Xiao Qiu, Tara McIntosh, Janitha P D Wanasundara
Heteromeric cruciferin from wild type (WT) Arabidopsis thaliana and homomeric cruciferin CRUA, CRUB, and CRUC composed of identical subunits obtained from double-knockout mutant lines were investigated for their structural and physicochemical properties. A three-step chromatographic procedure allowed isolation of intact cruciferin hexamers with high purity (>95%). FT-IR and CD analysis of protein secondary structure composition revealed that all cruciferins were folded into higher order structures consisting of 44-50% β-sheets and 7-9% α-helices...
June 19, 2013: Journal of Agricultural and Food Chemistry
Thushan S Withana-Gamage, Dwayne D Hegedus, Xiao Qiu, Peiqiang Yu, Tim May, Derek Lydiate, Janitha P D Wanasundara
Arabidopsis thaliana lines expressing only one cruciferin subunit type (double-knockout; CRUAbc, CRUaBc, or CRUabC) or devoid of cruciferin (triple-knockout; CRU-) or napin (napin-RNAi) were generated using combined T-DNA insertions or RNA interference approaches. Seeds of double-knockout lines accumulated homohexameric cruciferin and contained similar protein levels as the wild type (WT). Chemical imaging of WT and double-knockout seeds using synchrotron FT-IR spectromicroscopy (amide I band, 1650 cm(-1), νC═O) showed that proteins were concentrated in the cell center and protein storage vacuoles...
January 30, 2013: Journal of Agricultural and Food Chemistry
Thushan S Withana-Gamage, Dwayne D Hegedus, Xiao Qiu
Cruciferin is the major storage protein in Brassicaceae family oilseeds. The predominant cruciferin isoforms in Arabidopsis thaliana were investigated using homology modeling (HM) for their molecular structures and functional properties. The structure of Brassica napus procruciferin was used as the template for HM to determine the molecular structures and hypervariable regions. Hydrophobicity and electrostatic surface potential distribution on the intradisulfide-containing face (IA) and the interdisulfide-containing face (IE) indicated favorable interfacial and solubility properties...
December 28, 2011: Journal of Agricultural and Food Chemistry
Jana Moravcíková, Eva Vaculková, Miroslav Bauer, Jana Libantová
This work is focused on the generation of selectable marker-free transgenic tobacco plants using the self excision Cre/loxP system that is controlled by a strong seed specific Arabidopsis cruciferin C (CRUC) promoter. It involves Agrobacterium-mediated transformation using a binary vector containing the gus reporter gene and one pair of the loxP sites flanking the cre recombinase and selectable nptII marker genes (floxed DNA). Surprisingly, an ectopic activation of CRUC resulting in partial excision of floxed DNA was observed during regeneration of transformed cells already in calli...
November 2008: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
Julia A Maresca, Donald A Bryant
The green sulfur bacterium Chlorobium tepidum produces chlorobactene as its primary carotenoid. Small amounts of chlorobactene are hydroxylated by the enzyme CrtC and then glucosylated and acylated to produce chlorobactene glucoside laurate. The genes encoding the enzymes responsible for these modifications of chlorobactene, CT1987, and CT0967, have been identified by comparative genomics, and these genes were insertionally inactivated in C. tepidum to verify their predicted function. The gene encoding chlorobactene glucosyltransferase (CT1987) has been named cruC, and the gene encoding chlorobactene lauroyltransferase (CT0967) has been named cruD...
September 2006: Journal of Bacteriology
S Crucs, S Chatterjee, E R Gavis
Spatially restricted synthesis of Nanos protein in the Drosophila embryo is essential for anterior-posterior patterning. Nanos translation is restricted to the posterior of the embryo by translational repression of nanos mRNA throughout the bulk cytoplasm and selective activation of posteriorly localized nanos mRNA. A 90-nucleotide translational control element (TCE) mediates translational repression. We show that TCE function requires formation of a bipartite secondary structure that is recognized by Smaug repressor and at least one additional factor...
March 2000: Molecular Cell
W A Crucs
No abstract text is available yet for this article.
June 1970: Dental Management
R J Crucs
No abstract text is available yet for this article.
May 1972: Journal—Association of Official Analytical Chemists
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