10 research outputs found

    Additional file 5: Figure S5. of Investigating the physiology of viable but non-culturable bacteria by microfluidics and time-lapse microscopy

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    Susceptible cells are indistinguishable from untreated cells before drug treatment. Distribution of fluorescence levels in the susceptible phenotype before drug treatment (t = 0) and in untreated control cells before regrowth in LB (t = 0) in the a) tolC, b) tnaC, and c) ptsG reporter strain. The two populations are not statistically different, an unpaired t test with Welch’s correction yielding a P value of 0.07, 0.7, and 0.9, respectively. The bottom and top of the box are the first and third quartiles, the band inside the box is the median, the bottom and top whiskers represent the 10th and 90th percentiles, respectively. Data are obtained at least in biological triplicate (N = 3) for each reporter strain employed for a total of n S  = 6659 and n C  = 3076 susceptible and control cells, respectively. We did not observe any significant difference between the results obtained from different biological replica. (PNG 423 kb

    Annuaire du club alpin français

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    18921892-1892.Appartient à l’ensemble documentaire : PACA

    Cost-effectiveness of melioidosis vaccines as determined by incidence, cost, protective efficacy and protective duration.

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    <p>It was assumed that policy makers in Thailand were willing to pay $3,000 for an additional QALY gained. Areas in blue indicate where the vaccine is considered cost-effective in the Thai context. The protective efficacy (PE) and protective duration (PD) of the vaccine were considered as homogenous for all routes of disease acquisition. Percentage reduction of PE in this figure was considered as a combination of reduction in both disease incidence and mortality rate.</p

    The Markov model used to assess costs and health gains for a melioidosis vaccine.

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    <p><i>M</i> denotes a Markov node where individuals can transition into the subsequent states in each monthly cycle. In each cycle a susceptible patient can be infected and develop a melioidosis episode, from which they can recover and return to the susceptible state in the next cycle, or die. Patients can also die from natural causes according to their age specific mortality rates.</p

    Cost and deaths averted if a melioidosis vaccine<sup>a</sup> was implemented in NE Thailand.

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    a<p>The melioidosis vaccine was assumed to have 50% protective efficacy (reduction of disease incidence by 50% and reduction of mortality rate in diseased patients by 50%) and cost 5 dollars.</p

    Expressed transcripts in the Bp condition compendium.

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    <p>High-resolution views of different genomic features are depicted. All transcripts depicted were expressed above the median cut-off threshold. (A) Transcriptional annotation of the <i>Burkholderia pseudomallei</i> K96243 reference genome. The transcriptome map is presented along the chromosomal coordinates in a strand-specific manner, with the outermost track composed of Sanger annotated genes (orange), followed by novel genes (green), the Bp operons (purple) and finally the non-coding RNAs (ncRNAs; red). In all tracks, predicted genomic features that do not have an associated transcript in this study are colored in grey. The genes, operons and ncRNAs are arranged in a strand-specific manner by visualizing them in either the forward (+) or the reverse (−) tracks. The black vertical lines indicate the start/stop sites of the circular chromosomes. (B) Sanger genes and novel genes. Expressed strand-specific transcripts are presented as blue bars along the forward and reverse strands. Transcript boundaries correspond to predicted start and stop coordinates of Sanger annotated genes and FGENESB novel genes. (C) Differential expression of a Bp operon. Expression of a predicted flagella operon (<i>BPSL0026 – BPSL0032</i>) in a specific condition (taurine exposure). (D) Antisense transcription. <i>BPSL0095</i>, a gene coding for hypothetical protein exhibits antisense transcription upon exposure to human serum.</p

    Discovery of <i>cis</i>-regulatory motifs.

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    <p>Motifs were identified by analysing upstream sequences of constituent genes or operons in each cluster. The asterisk (*) indicates that the motif was detected using MEME and BioProspector. Tick symbols indicate that all cluster genes have a cognate homolog in the specified species (i.e. 100%), otherwise the proportion of homologs in that species is reported. Filled circles indicate that the discovered <i>cis</i>-motifs in Bp are significantly similar () to Bt or Bm. Motifs that match to known binding sites and corresponding binding proteins in other species are reported in the last column. Bt, <i>B. thailandensis</i>; Bm, <i>B. mallei</i>.</p

    Co-expression network of Bp condition-dependent transcription.

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    <p>(A) Co-expression network. Nodes are individual genes, connected to one another by significant co-expression relationships (mutual information score ). The colours represent clusters over-represented in different Riley annotations, and their respective annotations are provided at the bottom. (B) Condition dependent cluster expression. The heat-map depicts representative clusters and patterns of expression across conditions. Gene expression levels were mean-normalized. (C) Inter-cluster relationships. The MRCN unit M036 consists of two clusters: C131 and C265, which include genes encoding proteins for degrading misfolded proteins and other genes with hypothetical functions. Thickness of edges represents the strength of the co-expression relationship between two genes. (D) Condition groups. The different condition-specific transcriptional profiles were clustered to one another based on similarities in expression of genes from the Bp core genome. Condition groups deemed to be stable by bootstrap assessment are marked in colors.</p

    Bp chromosomes display distinct transcriptional landscapes.

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    <p>(A) Cumulative curves for expression of genes across the condition compendium. The graph represents the percentage of new genes expressed on Chr 1 (red) and Chr 2 (green) (y-axis) upon the successive addition of conditions (x-axis). This analysis was confined to Sanger genes to minimize annotation errors. (B) Chr 1 and Chr 2 exhibit constitutive and mosaic expression respectively. The graph relates the proportion of genes expressed on each chromosome (y-axis) under any particular number of conditions (x-axis). Chr 1 genes are expressed in most conditions (rightward upslope, red), while Chr 2 genes are expressed in specific conditions (leftward upslope, green). (C) Chr 1 genes exhibit higher expression levels than Chr 2 genes. Each dot represents the median expression of all detectably expressed genes on the respective chromosome, joined by the same condition. Chromosomal expression levels were compared using one-tailed paired t-test ().</p

    Identification of Bp ncRNAs.

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    <p>(A) Condition-dependence of ncRNA expression. The heat-map depicts 766 identified ncRNAs and their patterns of expression across the condition compendium. Red depicts high expression, and green depicts low expression. (B) <i>BPNC10061R</i> expression is triggered by sorbitol. <i>BPNC10061R</i> is highly expressed under condition of osmotic stress (2M Sorbitol) compared to desiccation. (C) Secondary structure and species conservation of <i>BPNC10061R</i>. Consensus sequences homologous to <i>BPNC10061R</i> are found in <i>B. mallei</i>, <i>B. cenocepacia</i> and <i>B. thailandensis</i> strains. The sequences were aligned, and corresponding secondary structures were predicted.</p
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