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Identification of 3 Endotypes In Pediatric ARDS Using Nasal Transcriptomics

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Homo sapiens

PROVIDER: GSE152980 | GEO | 2020/06/23

REPOSITORIES: GEO

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Identification of 3 Endotypes In Pediatric ARDS Using Nasal Transcriptomics-Low Input

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Project description:The objective of this study was to determine if nasal transcriptomics could be used to characterize the underlying pathobiology and predict clinical course of patients with pediatric ARDS (PARDS). Subjects meeting consensus PARDS criteria or controls admitted to the Pediatric ICU without lung disease had nasal cytology brushings on days 1, 3, 7 and 14. The gene expression of these brushings was compared to identify subtypes and describe clinical course. Concurrent nasal and bronchial brushings were collected if bronchoscopy was performed. We identified four PARDS subgroups, termed A, B, C, and D. Subgroup B was marked by inflammation and ciliary cell dysfunction. Subgroup D was marked by reduced epithelial stem cell mRNAs without inflammation. Subgroup A had hypo-inflammation and upregulation of pathways important in epithelial cell repair. Subgroup C had increased ciliary cell genes. Control specimens almost entirely clustered with Subgroup C, but one that developed PARDS clustered with Subgroup B and several that developed lung injury clustereced with Subgroups B and A. Over time, Subgroups D and B transitioned to A which transitioned to C. Bronchial and nasal gene expresison were similar.

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