지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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Objectives: We investigated differences between the tracheostomized and the non-tracheostomized stroke patients through microbiological analysis for the purpose of preliminary explorations of full-scale clinical research in the future. Methods: We collected tracheal aspirates samples from 5 stroke patients with tracheostomy and expectorated sputum samples from 5 stroke patients without tracheostomy. Genomic DNA from sputum samples was isolated using QIAamp DNA mini kit. The sequences were processed using Quantitative Insights into Microbial Ecology 1.9.0. Alpha-diversity was calculated using the Chao1 estimator. Beta-diversity was analyzed by UniFrac-based principal coordinates analysis (PCoA). To confirm taxa with different abundance among the groups, linear discriminant analysis effect size analysis was performed. Results: Although alpha-diversity value of the tracheostomized group was higher than that of the non-tracheostomized group, there was no statistically significant difference. In PCoA, clear separation was seen between clusters of the tracheostomized group and that of the non-tracheostomized group. In both groups, Bacteroidetes, Proteobacteria, Fusobacteria, Firmicutes, Actinobacteria were identified as dominant in phylum level. In particular, relative richness of Proteobacteria was found to be 31% more in the tracheotomized group (36.6%) than the non-tracheostomized group (5.6%)(P<0.05). In genus level, Neisseria (24%), Prevotella (17%), Streptococcus (13%), Fusobacteria (11%), Porphyromonas (7%) were identified as dominant in the tracheostomized group. In the non-tracheostomized group, Prevotella (38%), Veillonella (20%), Neisseria (9%) were genera that found to be dominant. Conclusions: It is meaningful in that the tracheostomized group has been identified a higher rate of microbiotas known as pathogenic in respiratory diseases compared to the non-tracheostomized group, confirming the possibility that the risk of opportunity infection may be higher.
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참고문헌 (25)
참고문헌 신청
Moffatt MF / 2017 / The lung microbiome in health and disease / Clinical Medicine 17(6):525~529
Hilty M / 2010 / Disordered microbial communities in asthmatic airways / PloS One 5(1):e8578
Man WH / 2017 / The microbiota of the respiratory tract: gatekeeper to respiratory health / Nature Reviews Microbiology 15(5):259~270
Bösel J / 2014 / Tracheostomy in stroke patients / Curr Treat Options Neurol 16(1):274
McGrath B / 2016 / Above cuff vocalisation: A novel technique for communication in the ventilator-dependent tracheostomy patient / J Intensive Care Soc 17(1):19~26
Hilty M / 2010 / Disordered microbial communities in asthmatic airways / PloS One 5(1):e8578
Man WH / 2017 / The microbiota of the respiratory tract: gatekeeper to respiratory health / Nature Reviews Microbiology 15(5):259~270
Bösel J / 2014 / Tracheostomy in stroke patients / Curr Treat Options Neurol 16(1):274
McGrath B / 2016 / Above cuff vocalisation: A novel technique for communication in the ventilator-dependent tracheostomy patient / J Intensive Care Soc 17(1):19~26
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