Consideration of OAR doses controls the number of CBCTs allowed to ensure adherence to OAR tolerance. Reporting CBCT doses in "scans per Gray" allows clinicians to make informed decisions regarding the imaging schedule and concomitant doses. Patient grouping at planning CT, using CTDIvol, allows for CBCT imaging protocols to be selected based on patient specific attenuation. Reporting OAR doses in terms of "scans per Gray" allows translation of imaging dose risk to the Oncologist. Patient grouping at planning CT, using CTDIvol, allows for CBCT imaging protocols to be selected based on patient specific attenuation. Reporting OAR doses in terms of "scans per Gray" allows translation of imaging dose risk to the Oncologist. The present multicenter Phase II study evaluated the rate of late grade ≥2 gastrointestinal (GI) toxicities at 3 years, after hypofractionated radiotherapy (HFR) of prostate cancer with injection of hyaluronic acid (HA) between the prostate and the rectum. Between 2010 and 2013, 36 patients with low- or intermediate-risk prostate cancer were treated by HFR/IMRT-IGRT. 20 fractions of 3.1 Gy were delivered, 5 days per week for a total dose of 62 Gy. A transperineal injection of 10cc of HA was performed between the rectum and the prostate. Late toxicities were evaluated between 3 and 36 months after the end of treatment (CTCAE v4). Median pretreatment prostate-specific antigen was 8 ng ml . Among the 36 included patients, 2 were not evaluated because they withdrew the study in the first 3 months of follow-up, and 4 withdrew between 3 and 36 months, the per protocol population was therefore composed.Late grade ≥2 GI toxicities occurred in 4 (12%) patients with 3 (9%) Grade 2 rectal bleedings and one diarrhing below 10% at 36 months of follow-up. With an injection of HA, hypofractionated irradiation in 4 weeks is well tolerated with no Grade 3 or 4 GI toxicity and a rate of Grade 2 rectal bleeding below 10% at 36 months of follow-up.The RNA-binding protein CsrA is a global post-transcriptional regulator and controls many physiological processes and virulence traits. Deletion of csrA caused loss of virulence, reduced motility and production of xanthan gum, substantial increase in glycogen accumulation as well as enhanced bacterial aggregation and cell adhesion in Xanthomonas. How CsrA controls these traits is poorly understood. In this study, an iTRAQ-based proteomic analysis was conducted to compare the protein profile of wild-type strain X. citri subsp. citri (Xcc) and isogenic ∆csrA strain. Totally, 2374 proteins were identified, and 284 were considered to be differentially expressed proteins (DEP¬S), among which 151 proteins were up-regulated and 133 were down-regulated in ∆csrA strain with respect to wild-type strain. Enrichment analysis and protein-protein interaction (PPI) network analysis showed that CsrA regulates bacterial secretion systems, flagella, and xanthan gum biosynthesis. Several proteins encoded by the gumB operon were down-regulated whereas proteins associated with flagellum assembly and type IV secretion system (T4SS) were up-regulated in the ∆csrA strain relative to Xcc306. These results were confirmed by GUS assay or western blot. RNA secondary structure prediction and gel shift assay indicated that CsrA binds to the Shine-Dalgarno (SD) sequence of virB5. In addition, the iTRAQ analysis identified 248 DEPs that were not previously identified in transcriptome analyses. Among them, CsrA regulates levels of 8 regulatory proteins (ColR, GacA, GlpR, KdgR, MoxR, PilH, RecX, and YgiX), 7 TonB-dependent receptors, and 2 ferric enterobactin receptors. Taken together, this study greatly expands understanding of the regulatory network of CsrA in Xcc.AtxA, the master virulence regulator of Bacillus anthracis, regulates the expression of three toxins and genes for capsule formation that are required for the pathogenicity of B. https://www.selleckchem.com/products/umi-77.html anthracis. Recent transcriptome analyses showed that AtxA affects a large number of genes on the chromosome and plasmids, suggesting a role as a global regulator. However, information on genes directly regulated by AtxA is scarce. In this work, we conducted genome-wide analyses and cataloged the binding sites of AtxA in vivo and transcription start sites on the B. anthracis genome. By integrating these results, we detected eight genes as direct regulons of AtxA. These consisted of five protein-coding genes, including two of the three toxin genes, and three genes encoding the small RNAs XrrA and XrrB and a newly discovered 95-nucleotide small RNA, XrrC. Transcriptomes from single-knockout mutants of these small RNAs revealed changes in the transcription levels of genes related to the aerobic electron transport chain, heme biosynthesisificance of this work lies in the identification of genes that are directly regulated by AtxA via genome-wide analyses. The results reveal the first layer of the gene regulatory network for the pathogenicity of B. anthracis and provide useful resources for a further understanding of B. anthracis.Acinetobacter baumannii has become one of the most important multidrug-resistant nosocomial pathogens all over the world. Nonetheless, very little is known about the diversity of A. baumannii lineages coexisting in hospital settings. Here, using whole-genome sequencing, epidemiological data, and antimicrobial susceptibility tests, we uncover the transmission dynamics of extensive and multidrug-resistant A. baumannii in a tertiary hospital over a decade. Our core genome phylogeny of almost 300 genomes suggests that there were several introductions of lineages from international clone 2 into the hospital. The molecular dating analysis shows that these introductions happened in 2006, 2007, and 2013. Furthermore, using the accessory genome, we show that these lineages were extensively disseminated across many wards in the hospital. Our results demonstrate that accessory genome variation can be a very powerful tool for conducting genomic epidemiology. We anticipate future studies employing the accessory genome aloemiology.Although previous research demonstrates that skin-associated archaea are rarely detected within human skin microbiome data, exist at relatively low abundance, and are primarily affiliated with the Methanobacteriota and Halobacteriota phyla, other studies suggest that archaea are consistently detected and relatively abundant on human skin, with skin "archaeomes" dominated by putative ammonia oxidizers of the Nitrososphaeria class (Thermoproteota phylum, formerly Thaumarchaeota). Here, we evaluated new and existing 16S rRNA gene sequence data sourced from mammalian skin and skin-associated surfaces and generated with two commonly used universal prokaryotic primer sets to assess archaeal prevalence, relative abundance, and taxonomic distribution. Archaeal 16S rRNA gene sequences were detected in only 17.5% of 1,688 samples by high-throughput sequence data, with most of the archaeon-positive samples associated with nonhuman mammalian skin. Only 5.9% of human-associated skin sample data sets contained sequences affiliated with archaeal 16S rRNA genes.