Dataset Information

Gemykibivirus Genome in Lower Respiratory Tract of Elderly Woman With Unexplained Acute Respiratory Distress Syndrome.

ABSTRACT: Using metagenomics analysis, we are the first to identify the presence of a small, circular, single-stranded Gemykibivirus (GkV) genome from the respiratory tract of an elderly woman with severe acute respiratory distress syndrome. Our results suggest that further studies on whether GkVs infect humans and cause respiratory disease are needed.

SUBMITTER: Wang J

PROVIDER: S-EPMC6695507 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature

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Publications

Gemykibivirus Genome in Lower Respiratory Tract of Elderly Woman With Unexplained Acute Respiratory Distress Syndrome.

Wang Jian J Li Yanpeng Y He Xi X Ma Jinmin J Hong Wenxin W Hu Fengyu F Zhao Lingzhai L Li Qiongfang Q Zhang Jianhui J Zhang Chiyu C Zhang Fuchun F

Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 20190801 5

Using metagenomics analysis, we are the first to identify the presence of a small, circular, single-stranded Gemykibivirus (GkV) genome from the respiratory tract of an elderly woman with severe acute respiratory distress syndrome. Our results suggest that further studies on whether GkVs infect humans and cause respiratory disease are needed. ...[more]

PMID: 30715242

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Project description:BACKGROUND:The lung microbiome maintains the homeostasis of the immune system within the lungs. In acute respiratory distress syndrome (ARDS), the lung microbiome is enriched with gut-derived bacteria; however, the specific microbiome associated with morbidity and mortality in patients with ARDS remains unclear. This study investigated the specific patterns of the lung microbiome that are correlated with mortality in ARDS patients. METHODS:We analyzed the lung microbiome from the bronchoalveolar lavage fluid (BALF) of patients with ARDS and control subjects. We measured the copy numbers of 16S rRNA and the serum and BALF cytokines (interleukin [IL]-6, IL-8, receptor for advanced glycation end products, and angiopoietin-2). RESULTS:We analyzed 47 mechanically ventilated patients diagnosed with (n?=?40) or without (n?=?7; control) ARDS. The alpha diversity was significantly decreased in ARDS patients compared with that of the controls (6.24 vs. 8.07, P?=?0.03). The 16S rRNA gene copy numbers tended to be increased in the ARDS group compared with the controls (3.83?×?106 vs. 1.01?×?105 copies/mL, P?=?0.06). ARDS patients were subdivided into the hospital survivor (n?=?24) and non-survivor groups (n?=?16). Serum IL-6 levels were significantly higher in the non-survivors than in the survivors (567 vs. 214?pg/mL, P?=?0.027). The 16S rRNA copy number was significantly correlated with serum IL-6 levels in non-survivors (r?=?0.615, P?<?0.05). The copy numbers and relative abundance of betaproteobacteria were significantly lower in the non-survivors than in the survivors (713 vs. 7812, P?=?0.012; 1.22% vs. 0.08%, P?=?0.02, respectively). Conversely, the copy numbers of Staphylococcus, Streptococcus and Enterobacteriaceae were significantly correlated with serum IL-6 levels in the non-survivors (r?=?0.579, P?<?0.05; r?=?0.604, P?<?0.05; r?=?0.588, P?<?0.05, respectively). CONCLUSIONS:The lung bacterial burden tended to be increased, and the alpha diversity was significantly decreased in ARDS patients. The decreased Betaproteobacteria and increased Staphylococcus, Streptococcus and Enterobacteriaceae might represent a unique microbial community structure correlated with increased serum IL-6 and hospital mortality. TRIAL REGISTRATION:The institutional review boards of Hiroshima University (Trial registration: E-447-4, registered 16 October 2019) and Kyoto Prefectural University of Medicine (Trial registration: ERB-C-973, registered 19 October 2017) approved an opt-out method of informed consent.

Dataset Information

Gemykibivirus Genome in Lower Respiratory Tract of Elderly Woman With Unexplained Acute Respiratory Distress Syndrome.

Publications

Gemykibivirus Genome in Lower Respiratory Tract of Elderly Woman With Unexplained Acute Respiratory Distress Syndrome.

Similar Datasets

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