Phenotypic and genotypic characterisation of colony morphology variants generated in a biofilm model in the presence or absence of the preservative sodium benzoate
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PROVIDER: PRJEB53712 | ENA |
REPOSITORIES: ENA
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Project description:Sodium benzoate is a widely used food antimicrobial in drinks and fruit juices. A microarray study was conducted to determine the transcriptional response of Escherichia coli O157:H7 to 0.5% (w/v) sodium benzoate. Stationary phase E. coli O157:H7 grown in 150 ml Luria-Bertani broth (LB) was exposed to 0 (control) and 0.5% sodium benzoate. Each treatment was duplicated and sampled at 0 (immediately after exposure), 5, 15, 30, and 60 min. Total RNA was extracted and analyzed with E. coli 2.0 Gene Chips.
2009-10-05 | GSE17519 | GEO
Project description:Sodium benzoate is a widely used food antimicrobial in drinks and fruit juices. A microarray study was conducted to determine the transcriptional response of Escherichia coli O157:H7 to 0.5% (w/v) sodium benzoate. Stationary phase E. coli O157:H7 grown in 150 ml Luria-Bertani broth (LB) was exposed to 0 (control) and 0.5% sodium benzoate. Each treatment was duplicated and sampled at 0 (immediately after exposure), 5, 15, 30, and 60 min. Total RNA was extracted and analyzed with E. coli 2.0 Gene Chips. Experiment Overall Design: Completely randomized design with 0% (control) and 0.5% (w/v) sodium benzoate treated cells were exposed for 0 (immediately after exposure), 5 min, 15 min, 30 min, and 60 min. Each experiment was replicated once and total RNA was extracted and Affymetrix prokaryotic protocol was followed to hybridize cDNA onto E. coli Genome 2.0 Arrays.
2009-10-09 | E-GEOD-17519 | biostudies-arrayexpress
Project description:AD is a progressive neurodegenerative disorder characterized by a decline in memory that ultimately leads to dementia. N-methyl-D-aspartate receptors are crucial components of brain function involved in memory and neurotransmission. Currently, targeting NMDARs with medication has shown potential in providing dementia-related benefits for AD patients. Sodium benzoate is a promising NMDAR enhancer that reduces oxidative stress, thereby offering neuroprotection. Sodium benzoate has been proved as a novel, safe and efficient therapy to patients with AD. However, in addition to the role as an NMDAR enhancer, other mechanism of sodium benzoate is still unclear. To uncover possible mechanism of sodium benzoate in treating patients with Alzheimer's disease, in this study, serum samples from AD patients with sodium benzoate treatment or a placebo were analyzed using label free quantitative proteomics. The serum proteins were separated into 24 fractions using immobilized pH gradient. Each subfraction was individually digested with trypsin and then subjected to nanoLC-MS/MS to analyze the proteome of all patients. There were 837 and 807 protein groups identified in the benzoate-treatment group and the placebo group, respectively. Our result shows that sodium benzoate had the most significant effect in the pathway of complement and coagulation cascades, disease-gene associations of amyloidosis, the biological process of immune responses, and lipid metabolic process. TTR, FGA, HP, ApoB, FGB APOE and ApoA1 were found to be the hub proteins of the protein-protein interaction networks. Our results showed that sodium benzoate could affect some important pathways which play key roles in the pathogenesis of AD.
2023-06-11 | MSV000092141 | MassIVE
Project description:This study investigates the synergistic effects of fructose and common food preservatives (sodium benzoate, sodium nitrite, and potassium sorbate) on the development of non-alcoholic fatty liver disease (NAFLD) using a human-microbiota-associated mouse model. We examined changes in hepatic gene expression through microarray analysis to understand the molecular mechanisms underlying NAFLD progression in response to these dietary factors.
2024-08-22 | GSE275135 | GEO
Project description:Here we report the identification and characterization of a histone mark, lysine benzoylation (Kbz). Our study identifies 22 Kbz sites on histones from HepG2 and RAW cells. This type of histone mark can be stimulated by sodium benzoate (SB), a FDA-approved drug and a widely used chemical food preservative, via generation of benzoyl CoA.
2018-07-11 | PXD010332 | Pride
Project description:Burkholderia pseudomallei is the causative agent of melioidosis which is endemic to Southeast Asia and Northern Australia. It is a Gram-negative soil and water bacterium that represents a potential bioterrorism threat. Colony morphology variation is a remarkable feature in primary clinical cultures of B. pseudomallei. Differences in expression of several potential virulence and survival genes were believed to be associated with B. pseudomallei colony morphology variants. Microarrray approach was used to investigate alterations of the global B. pseudomallei transcriptome profile at the mid-logarithmic phase of growth, among the wild type (WT) and small colony variant (SCV) of B. pseudomallei pre- and post-exposed to human lung epithelial cells, A549. Generally, SCV pre- and post-exposed have lower metabolic requirements and consume lesser energy than WT pre- and post-exposed to A549; however, both WT and SCV may limit their metabolic activity during the infection of A549 cells and this is indicated by the down-regulation of genes implicated in metabolism of amino acids, carbohydrate, lipid, and other amino acids, and biodegradation of xenobiotics. On the other hand, many well-known virulence and survival factors including T3SS, T6SS, fimbriae, capsular polysaccharides, drug resistance and stress response were up-regulated in both WT and SCV pre- and post-exposed to A549 cells. Several virulence factors expressed at the mid-logarithmic phase of growth. Microarray analysis on the different morphotypes demonstrated the essential difference in bacterial response associated with virulence and survival pre- and post-exposed to A549 cells.
2016-10-12 | GSE87827 | GEO
Project description:Bacillus subtilis strain AG174 was grown in the presence and absence of benzoate (30 mM). Benzoate was used in order to equalize the external and internal pH. The cultures were grown at external pH 7.0, and the addition of benzoate did not change the external pH. Microarray analysis was performed on cDNA synthesized from bacterial RNA. Real-time PCR of highly up-regulated genes confirmed the results of the microarray. These data were compared to previous B.subtilis microarray results, where genes regulated by external pH were identified.
2009-12-01 | GSE12263 | GEO
Project description:DIET benzoate degradation Raw sequence reads
| PRJNA475220 | ENA
Project description:Insight into the mechanisms for the anaerobic metabolism of aromatic compounds by the hyperthermophilic archaeon Ferroglobus placidus is expected to improve understanding of the degradation of aromatics in hot (> 80 °C) environments and to identify enzymes that might have biotechnological applications. Analysis of the F. placidus genome revealed genes predicted to encode enzymes homologous to those previously identified as playing a role in benzoate and phenol metabolism in mesophilic bacteria. Surprisingly, F. placidus lacks genes for an ATP-independent class II benzoyl-CoA reductase found in all strictly anaerobic bacteria, but instead has two sets of genes for ATP-consuming class I benzoyl-CoA reductases, similar to those found in facultative bacteria. The lower portion of the benzoate degradation pathway appears to be more similar to that found in the phototroph Rhodopseudomonas palustris, than the pathway reported for all heterotrophic anaerobic benzoate degraders. Many of the genes predicted to be involved in benzoate metabolism were found in one of two gene clusters. Genes for a phenol carboxylation proceeding through a phenylphosphate intermediate and for conversion of p-hydroxybenzoate to benzoyl-CoA were identified in a single gene cluster. Analysis of transcript abundance with a whole-genome microarray and quantitative PCR demonstrated that most of the genes predicted to be involved in benzoate or phenol metabolism had higher transcript abundance during growth on those substrates versus growth on acetate. These results suggest that the general strategies for benzoate and phenol metabolism may be highly conserved between microorganisms living in moderate and hot environments, and that anaerobic metabolism of aromatic compounds might be analyzed in a wide range of environments with similar molecular targets. A four chip study using total RNA recovered from two separate cultures of Ferroglobus placidus DSM 10642 grown with 1 mM sodium benzoate (experimental condition) and two separate cultures of Ferroglobus placidus DSM 10642 grown on 10 mM acetate (control condition). Each chip measures the expression level of 2613 genes from Ferroglobus placidus DSM 10642 with nine 45-60-mer probe pairs (PM/MM) per gene, with three-fold technical redundancy.
2011-01-05 | E-GEOD-26421 | biostudies-arrayexpress
Project description:two cultures one grown on benzoate and other on pyruvate Keywords: growth type
2006-11-01 | GSE5270 | GEO