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Comparison on MiSeq and NovaSeq for Oral microbiome study

ABSTRACT: MiSeq versus NovaSeq for oral microbiome study

PROVIDER: PRJEB73332 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	ERR12710800_1.fastq.gz	Fastqsanger.gz
	ERR12710800_2.fastq.gz	Fastqsanger.gz
	ERR12710900_1.fastq.gz	Fastqsanger.gz
	ERR12710900_2.fastq.gz	Fastqsanger.gz
	ERR12710801_1.fastq.gz	Fastqsanger.gz

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METATAXONOMIC AND METAPROTEOMIC PROFILING OF THE ORAL MICROBIOME IN ORAL LICHEN PLANUS

Project description:Background: A growing body of evidence demonstrates a different bacterial composition in the oral cavity of patients with oral lichen planus (OLP). Patients and methods: Buccal swab samples were collected from affected and non-affected sites of six patients with reticular OLP and the healthy oral mucosa of six control subjects. 16S rRNA MiSeq sequencing and mass spectrometry-based proteomics and were utilised to identify the metataxonomic and metaproteomic profiles of the oral microbiome in both groups. Results: The most abundant species in the three subgroups were Streptococcus oralis and Pseudomonas aeruginosa, accounting for up to 70% of the total population. A Canonical Correspondence Analysis showed differential clustering of samples from the healthy and OLP groups. Three species (Veillonella parvula, Actinomyces sp, and Lactococcus lactis) were significantly over-represented in the control group and one (Granulicatella elegans) in patients with OLP. The metaproteomic data revealed that several G. haemolysans-belonging peptidases and other proteins with inflammatory and virulence potential were found present in OLP lesions only. Conclusion: Our data suggest that several bacterial species and peptides are associated with OLP. Future studies with larger cohorts should be conducted to determine their role in the aetiology of OLP and evaluate their potential as disease biomarkers.

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Project description:Background: Hypertension is one of the most common metabolic diseases in the elderly and its pathogenesis is associated with microbiota dysbiosis. Recent evidence suggests that oral microbiota dysbiosis is also an important factor in the development of hypertension. However, the relationship between hypertension and oral flora in the elderly has not been adequately investigated. Objective: The aim of this cross-sectional study was to investigate the structure of the oral microbiota and its correlation with hypertension in elderly hypertensive patients. To provide new ideas for the prevention and treatment of hypertension. Methods: 206 subjects aged 60 ~ 89 years were selected and divided into normal (CON) and hypertensive (HTN) groups, according to the 2018 Chinese Guidelines for the Management of Hypertension. The oral microbiome composition of saliva samples was determined by 16S rRNA gene sequencing. Results: Although there was no significant difference in α and β diversity between the two groups, systolic and diastolic blood pressure were the most important factors influencing the structure of the oral microbiota. At the phylum level, the relative abundance of the spirochete phylum and the mutualistic bacterial phylum was higher in the HT group than in the CON group (p < 0.05). Diastolic blood pressure was negatively correlated with Streptococcus. Furthermore, we analyzed HTN patients with 120 mmHg<systolic blood pressure<160 mmHg and systolic blood pressure>160 mmHg separately and found that the abundance of Saccharibacteria_(TM7) was significantly increased in the HTN_2 group. Conclusions: Our study identified specific oral microbiota in elderly hypertensive patients, confirming the relationship between oral microbiota and hypertension. This enhances our understanding of the important role of oral microbiota in the pathogenesis of hypertension and accumulates more evidence for microbial involvement in the development of hypertension.

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