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Periodontitis is a disease primarily affecting tooth attachment, i.e. concerning oral cavity, however, its connection to a number of systemic diseases is apparent nowadays. Oral microorganisms and their interaction with the immune system of their host play a significant part in the etiology of this multifactorial disease. Rapid development of DNA-based diagnostic methods in the last 15 years dramatically increased the spectrum of identified oral microorganisms and promoted understanding of how particular taxons correlate with periodontal health or disease. Moreover, next generation sequencing methods also bring new possibilities to study the relationship between periodontitis and other diseases such as diabetes mellitus, cardiovascular diseases (CVD), stroke, lung infection or kidney diseases, etc. The presented work focuses on the use of sequencing methods to compare the taxonomic composition of microbiomes within oral cavity and the tissues of aortic valves in patients suffering from CVD. The characterisation of taxonomic composition of microbiome in the analysed tissues was performed using the method of 454 pyrosequencing of variable region IV-V of the bacterial 16S rDNA. The present taxons were determined by comparing the obtained sequences with the Human Oral Microbiome Database. The common... |
