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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

Project description:This study used nasal transcriptomic profiling of the inferior turbinate in control and pediatric ARDS subjects to identify endotypes. This data set is for amplified specimens. The study identfied three pediatric ARDS endotypes.

2020-06-23 | GSE152979 | GEO

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

Project description:This study used nasal transcriptomic profiling of the inferior turbinate in control and pediatric ARDS subjects to identify endotypes. This data set is for non-amplified specimens. The study identfied three pediatric ARDS endotypes.

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Identification of 3 Endotypes In Pediatric ARDS Using Nasal Transcriptomics

Project description:Identification of 3 Endotypes In Pediatric ARDS Using Nasal Transcriptomics

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

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Identification of host endotypes using peripheral blood transcriptomics in a prospective cohort of patients with endocarditis

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Inflammatory molecular endotypes of nasal polyps derived from Caucasian and Japanese populations

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Multi-omic characterization of pediatric ARDS via nasal brushings.

Project description:RationaleWhile nasal brushing transcriptomics can identify disease subtypes in chronic pulmonary diseases, it is unknown whether this is true in pediatric acute respiratory distress syndrome (PARDS).ObjectivesDetermine whether nasal transcriptomics and methylomics can identify clinically meaningful PARDS subgroups that reflect important pathobiological processes.MethodsNasal brushings and serum were collected on days 1, 3, 7, and 14 from control and PARDS subjects from two centers. PARDS duration was the primary endpoint.Measurements and main resultsTwenty-four control and 39 PARDS subjects were enrolled. Two nasal methylation patterns were identified. Compared to Methyl Subgroup 1, Subgroup 2 had hypomethylation of inflammatory genes and was enriched for immunocompromised subjects. Four transcriptomic patterns were identified with temporal patterns indicating injury, repair, and regeneration. Over time, both inflammatory (Subgroup B) and cell injury (Subgroup D) patterns transitioned to repair (Subgroup A) and eventually homeostasis (Subgroup C). When control specimens were included, they were largely Subgroup C. In comparison with 17 serum biomarkers, the nasal transcriptome was more predictive of prolonged PARDS. Subjects with initial Transcriptomic Subgroup B or D assignment had median PARDS duration of 8 days compared to 2 in A or C (p = 0.02). For predicting PARDS duration ≥ 3 days, nasal transcriptomics was more sensitive and serum biomarkers more specific.ConclusionsPARDS nasal transcriptome may reflect distal lung injury, repair, and regeneration. A combined nasal PCR and serum biomarker assay could be useful for predictive and diagnostic enrichment. Trial registration Clinicaltrials.gov NCT03539783 May 29, 2018.

| S-EPMC9270778 | biostudies-literature

methyl-Seq of Pediatric ARDS Nasal and Bronchial Brushings

Project description:The objective of this study was to identify differences in the nasal methylome of patients with Pediatric ARDS (PARDS) compared to controls and to observe how this might change over time. We found two different methylomic patterns. Subgroup 1 was comprised of entirely of PARDS subjects, and Subgroup 2 contained both control and PARDS subject. Subgroup 1was characterized by hypomethylation of genes related to cell adhesion and hypermethylation of cell metabolism-related genes. Over time, the methylation pattern of PARDS subjects changed, but the pattern of control subjects was stable. Five concurrent bronchial and nasal specimens were obtained showing very few differences in methylation between these two collection sites.

2022-01-06 | GSE192926 | GEO

NextGeneration Sequencing of Pediatric ARDS Nasal and Bronchial Brushings

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.

2021-12-24 | GSE192364 | GEO

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