Dental metagenome
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA747188 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR15175045_1.fastq.gz | Fastqsanger.gz | |||
| SRR15175045_2.fastq.gz | Fastqsanger.gz | |||
| SRR15175046_1.fastq.gz | Fastqsanger.gz | |||
| SRR15175046_2.fastq.gz | Fastqsanger.gz | |||
| SRR15175047_1.fastq.gz | Fastqsanger.gz |
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Project description:Synthetic dental calculus microbiome
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Project description:Background. Hematopoietic cell transplantation (HCT) is a potentially curative therapy for a wide range of pediatric malignant and nonmalignant diseases. However, complications, including blood stream infection (BSI) remain a major cause of morbidity and mortality. While certain bacteria that are abundant in the oral microbiome, such as S. mitis, can cause BSI, the role of the oral microbial community in the etiology of BSI is not well understood. The finding that the use of xylitol wipes, which specifically targets the cariogenic bacteria S. mutans is associated with reduced BSI in pediatric patients, lead us to investigate dental caries as a risk factor for BSI. Methods. A total of 41 pediatric patients admitted for allogenic or autologous HCT, age 8 months to 25 years, were enrolled. Subjects with high dental caries risk were identified as those who had dental restorations completed within 2 months of admission for transplant, or who had untreated decay. Fisher’s exact test was used to determine if there was a significant association between caries risk and BSI. Dental plaque and saliva were collected on a cotton swab from a subset of 4 high caries risk (HCR) and 4 low caries risk (LCR) children following pretransplant conditioning. 16SrRNA sequencing was used to compare the microbiome of HCR and LCR subjects and to identify microbes that were significantly different between the 2 groups. Results. There was a statistically significant association between caries risk and BSI (p<0.035) (Fisher’s exact test). Multivariate logistic regression analysis showed children in the high dental caries risk group were 21.39 times more likely to have BSI, with no significant effect of age or mucositis severity. HCR subjects showed significantly reduced microbial alpha diversity as compared to LCR subjects. LEfse metagenomic analyses, showed the oral microbiome in HCR children enriched in order Lactobacillales. This order includes Streptococcus and Lactobacillus, both which contain bacteria primarily associated with dental caries. Discussion. These findings support the possibility that the cariogenic microbiome can enhance the risk of BSI in pediatric populations. Future metagenomic analyses to measure microbial differences at, before, and after conditioning related to caries risk, may further unravel the complex relationship between the oral microbiome, and whether it affects health outcomes such as BSI.
2022-04-05 | GSE199991 | GEO
Project description:Dental Plaque Microbiome Targeted loci environmental
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Project description:This study investigated the differences in saliva composition between individuals with rapid and slow dental calculus formation rates. A total of 26 patients were evaluated for their salivary electrochemical properties, and proteomic, metaproteomic, and elemental compositions. After dental cleaning and a six-month reassessment, patients were categorized into slow (57.7%) and rapid (42.3%) calculus formers. Results indicated that rapid formers had a more neutral zeta-potential, lower salivary calcium ion concentration, distinct protein profiles including 38 exclusive proteins, and pathways related to cell binding, inflammatory mediation, and neurodegenerative disorders. In contrast, slow formers showed an immune response enrichment and a different bacterial composition, with a predominance of Streptococci in rapid formers and Rothia in slow formers. The study concludes that rapid calculus formers' saliva significantly differs in several key compositions from slow formers.
2024-09-04 | PXD050597 | Pride
Project description:Transcriptional profiling of Bmi1 mutant dental epithelia including the stem cell compartment to determine which genes are upregulated in response to loss of Bmi1. Two condition experiment: dental epithelia homozygous null for Bmi1 and WT dental epithelia. 4 replicates each
2013-04-12 | E-GEOD-45999 | biostudies-arrayexpress
Project description:The purpose of this study was to investigate oral microbiome and host proteins in archaeological human dental tissues using a shotgun proteomics approach. The research focuses on dental calculus (mineralized plaque), dentine, a carious lesion, and an alveolar bone abscess from the medieval site of Dalheim, Germany (ca. AD 950-1200). For comparison, proteins were also analyzed from archaeological faunal dental tissues and human dental calculus samples from modern Swiss dental patient controls. Protein extraction and generation of tryptic peptides from tooth and dental calculus specimens was performed using a filter-aided sample preparation (FASP) protocol, modified for mineralized and degraded samples. Total protein extraction was performed on a total of fourteen samples: four ancient human calculus samples (indicated as: G12, B71, B61, and B78), four ancient human tooth root samples (indicated as: G12, B17, B61, and B78), one carious lesion (indicated as: B17), one alveolar bone abscess (indicated as: B17), two ancient fauna crown cementum/calculus samples (indicated as: F1 [sheep] and F5 [cattle]), and two modern dental calculus samples from clinical patients (indicated as: P1 and P2). All samples were extracted at the Centre for Evolutionary Medicine (ZEM) at the University of Zürich with the exception of dental calculus from G12, P1, and P2, which were extracted at the Center for GeoGenetics (CGG) at the University of Copenhagen. Two samples (G12 and B61 calculus) were extracted a second time in an independent laboratory at the University of York (YORK) for comparison. Sample extracts were then sequenced (LC-MS/MS) at the Functional Genomics Center Zürich (FGCZ) using an LTQ-Orbitrap Velos, at the Novo Nordisk Foundation Center for Protein Research (CPR) using a Q-Exactive Hybrid Quadrupole Orbitrap, and at the University of York’s Proteomics and Analytical Biochemistry Laboratories (PABL) using a MaXis UHR-Qq-TOF.
2014-01-29 | PXD000412 | Pride
Project description:The dental calculus proteome from human remains is a considered a valuable archaeological resource for studying the diet, oral microbiome, health/disease of individuals and occupation activities individuals within past societies/civilisations. The combination of advancements in LC/MS instrument sensitivity and sample prepartion methods enables the analysis of these well preserved proteomes otherwise invisible to other biomolecular approaches. Maximizing proteome recovery from this minute and finite resource is paramount to our understanding of these past societies and civilisations in terms of diet and disease. Here we compare the more traditional ultrafiltration-based and acetone precipitation approaches with the newer paramagnetic bead approach (SP3) in a step towards achieving this aim. We specifically evaluate different acids (EDTA and HCl) and proteome extraction methodologies (Ultrafiltration, Acetone Precipitation and SP3)to test the influence of demineralization acid and method of extraction on the recovered proteome complexity (including numbers of peptides recovered) and sequence coverageand observed for these ancient dental calculus specimens.
2021-02-19 | PXD023399 | Pride
Project description:We analysed the genexpression of dental follicle cells (DFCs) after 3 days osteogenic differentiation with BMP2 after transfection with a DLX3 plasmid (pDLX3) and after transfection with an empty plasmid (pEV) Total RNAs were isolated from dental follicle cells after transfection with pDLX3 and pEV and osteogenic induction with BMP2 at day 3
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Project description:Species Level Characterization of Dental Plaque Associated Microbiome of Native Indian Children using Metagenome Sequencing
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