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ABSTRACT:
PROVIDER: PRJNA1305107 | ENA |
REPOSITORIES: ENA
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Project description:<p>This study explores the impact of psychological factors on the comorbidity of dental caries and obesity in adolescents through the oral-gut-brain axis. An epidemiological survey was conducted on 1,024 students from Beizhen No. 1 Junior High School, with 90 adolescents aged 12–15 included in biosample research. Methods such as 16S rRNA gene sequencing, untargeted metabolomics, and SourceTracker analysis were used. Results showed significant differences in oral and gut microbiota and metabolite concentrations among adolescents with different health statuses, highlighting the roles of the oral-gut and oral-brain axes in disease progression. This study provides new insights into the mechanisms underlying the comorbidity of dental caries and obesity in adolescents and offers theoretical foundations for prevention and treatment strategies.</p>
2025-08-22 | MTBLS12873 | MetaboLights
Project description:The aim of this study was to compare the protein composition of the acquired pellicle from adolescents with Erosive Tooth Wear (ETW) caries and sound. Calibrated examiners in BEWE Index and ICDAS-merged Epi criteria assessed ETW and caries in a sample of 454 systemically healthy adolescents aged 12 to 15 years old. From them, 30 subjects were selected for this study, presenting either Sound enamel (n=10, Total BEWE sum <8 and without extensive/cavitated caries lesions), ETW (n=10, Total BEWE sum ≥9 and without extensive/cavitated caries lesions) or Caries (n=10, Total BEWE sum <8 and with at least one Extensive caries lesion). Two hours formation acquired pellicle samples were taken from tooth surfaces (Buccal/Occlusal/Palatal/Lingual). Protein composition was analysed by Liquid Chromatography Tandem Mass Spectrometry. Using mean reporter ion values relative abundances of proteins were compared among the three groups to calculate for fold changes. Protein increases or decreases of 2-fold were reported (t-test, p<0.05). Gene Ontology (GO) of the included proteins was assigned. In the results of this project were found a total of 127 proteins in the acquired pellicle. The GO analyses showed that the majority of detected proteins were stress-response related. The ETW group disclosed up-regulated relative abundance of Antileucoprotease; Histatin and Prolactin-induced protein Hemoglobin subunits Alpha (HBA) and Beta (HBB) showed decreased relative abundances in the ETW and Caries groups when compared to the Sound group. As a conclusion, the acquired pellicle from individuals with ETW showed differences when compared to other dental conditions, with an increase in relative abundance of some stress response associated proteins in ETW and a decrease in proteins related to salivary protection against acid challenges.
2026-01-16 | PXD053912 | Pride
Project description:The study aims to assess gene expression in plaque samples collected from twin pairs that are both concordant and discordant with respect to dental Caries diagnosis. File Naming Conventions are as follows: Patient ID : 4 digit identifier Diagnosis : Caries Negative(CN) or Caries Positive(CP) Type of Twin: Monozygotic(MZ)or Dizygotic(DZ) Pair to xxxx: 4 digit twin identifier maps to the Patient ID E.g: 2126_CP_MZ_PairTo_2125_fastqc - 2126 is a caries positive patient and pairs to monozygotic twin pair 2125. Plaque samples from twin pairs that are both concordant and discordant with respect to dental Caries diagnosis are enriched for bacterial messenger RNA to study the gene expression differences in the samples. RNA was extracted from RNAprotect (Qiagen, In c.) treated dental plaque scrapings from 38 patients. Amplified cDNA was created and rRNA sequence was removed by subtractive hybridization. Individual patient samples were run on a single lane of an Illumina Genome Analyzer.
2011-09-26 | E-GEOD-31439 | biostudies-arrayexpress
Project description:The study aims to assess gene expression in plaque samples collected from twin pairs that are both concordant and discordant with respect to dental Caries diagnosis. File Naming Conventions are as follows: Patient ID : 4 digit identifier Diagnosis : Caries Negative(CN) or Caries Positive(CP) Type of Twin: Monozygotic(MZ)or Dizygotic(DZ) Pair to xxxx: 4 digit twin identifier maps to the Patient ID E.g: 2126_CP_MZ_PairTo_2125_fastqc - 2126 is a caries positive patient and pairs to monozygotic twin pair 2125. Plaque samples from twin pairs that are both concordant and discordant with respect to dental Caries diagnosis are enriched for bacterial messenger RNA to study the gene expression differences in the samples.
2011-09-26 | GSE31439 | GEO
Project description:Streptococcus mutans is a common constituent of oral biofilms and a primary etiologic agent of human dental caries. The bacteria associated with dental caries have a potent ability to produce organic acids from dietary carbohydrates and to grow and metabolize in acidic conditions. In this study, we observed supplementation with 1.5% arginine (final concentration) had inhibitory effects on the growth of S. mutans in complex and chemically defined media, particularly when cells were exposed to acid or oxidative stress. Deep-sequencing of RNA (RNA-Seq) comparing the transcriptomes of S. mutans growing in a chemically defined medium with and without 1.5% arginine in neutral and acidic pH conditions and under oxidative stress conditions revealed interesting results. The results provide new insights into the mechanisms of action by which arginine inhibits dental caries through direct adverse effects on multiple virulence-related properties of the most common human dental caries pathogen. The findings significantly enhance our understanding of the genetics and physiology of this cariogenic pathogen.
2017-05-20 | GSE98020 | GEO
Project description:We present a collection of single-cell transcriptomic profiles of 6,810 pulpal cells isolated from a sound human maxillary third molars and carious teeth at different stages. We showed that the presence of deep, but not enamel caries, altered the immune cell compositions of the dental pulp. Differential expression analysis further revealed that the pro-inflammatory, anti-inflammatory and mineralization-related genes were upregulated in immune and stromal cells in deep dental caries. Cell-cell interaction prediction showed potential interactions between immune and stromal cells during homeostasis, and enhanced interactions between different cell types with macrophage during deep dental caries. Taken together, our study serves as a comprehensive survey of human pulpal cell heterogeneity, as well as provides novel molecular insights into dental pulps in health and disease.
2021-11-26 | GSE185222 | GEO
Project description:Objectives: Dental pulp stem cells are crucial in immune response regulation. However, sub-clusters of these cells involved in deep caries progression remain unidentified. This study explores the role of Intercellular adhesion molecule 1-positive dental pulp stem cells (ICAM1+DPSCs) within the immune microenvironment of dental pulp tissue affected by deep caries, aiming to establish a theoretical foundation and novel strategies for its prevention and treatment.Methods: Use flow cytometry to sort ICAM1+ DPSCs and ICAM1- DPSCs for RNA-seq.
2026-01-01 | GSE282493 | GEO
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:The composition of the salivary microbiota has been reported to differentiate between patients with periodontitis, dental caries and orally healthy individuals. Thus, the purpose of the present investigation was to compare metaproteomic profiles of saliva in oral health and disease. Stimulated saliva samples were collected from 10 patients with periodontitis, 10 patients with dental caries and 10 orally healthy individuals. Samples were analyzed by means of shotgun proteomics. 4161 different proteins were recorded out of which 1946 and 2090 were of bacterial and human origin respectively. The human proteomic profile displayed significant overexpression of the complement system and inflammatory mediators in periodontitis and dental caries. Bacterial proteomic profiles and functional annotation were very similar in health and disease. Data revealed multiple potential salivary proteomic biomarkers of oral disease. In addition, comparable bacterial functional profiles were observed in periodontitis, dental caries and oral health, which suggest that the salivary microbiota predominantly thrives in a planktonic state expressing no characteristic disease-associated metabolic activity. Future large-scale longitudinal studies are warranted to reveal the full potential of proteomic analysis of saliva as a biomarker of oral health and disease.
2016-08-15 | PXD004319 | Pride