Episode 196

November 12, 2025

00:16:37

196: Impact of Chromatin Accessibility QTLs Across Immune Contexts

Hosted by

Gustavo B Barra
196: Impact of Chromatin Accessibility QTLs Across Immune Contexts
Base by Base
196: Impact of Chromatin Accessibility QTLs Across Immune Contexts

Nov 12 2025 | 00:16:37

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Show Notes

Impact of Chromatin Accessibility QTLs Across Immune Contexts

Music:
Enjoy the music based on this article at the end of the episode.

License:
This episode is based on an open-access article published under the Creative Commons Attribution 4.0 International License (CC BY 4.0) – https://creativecommons.org/licenses/by/4.0/

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Episode link: https://basebybase.com/episodes/impact-of-chromatin-accessibility-qtls-across-immune-contexts

QC:
This episode was checked against the original article PDF and publication metadata for the episode release published on 2025-11-12.

QC Scope:
- article metadata and core scientific claims from the narration
- excludes analogies, intro/outro, and music
- transcript coverage: Audited core caQTL biology and context: PBMC-wide caQTL mapping; dynamic caQTLs along cell trajectories (k17 CD8 TEM); COVID-19 contexts; caQTL–eQTL–GWAS integration; ABC-based distal linking; CARD9 case in monocytes; emphasis on triple convergence for causal inference.
- transcript topics: Single-cell caQTL mapping in PBMCs across healthy, COVID-19, convalescent; caQTL–eQTL–GWAS integration and interpretability; Topic modeling and cell-state trajectories of caQTLs; Dynamic caQTLs during activation (k17 CD8 TEM); COVID-19 cellular context and heritability enrichment; Distal caQTLs and ABC-based enhancer–gene linking

QC Summary:
- factual score: 10/10
- metadata score: 10/10
- supported core claims: 7
- claims flagged for review: 0
- metadata checks passed: 7
- metadata issues found: 0

Metadata Audited:
- article_doi
- article_title
- article_journal
- license
- episode_title
- episode_number
- season

Factual Items Audited:
- caQTL count across PBMCs: 37,390
- dynamic caQTLs identified: 4,200
- caQTL sharing: less than 20% confined to a single context
- increase in GWAS loci explained when using caQTLs vs eQTLs: from 32.9% to 57.3%
- COVID-19 cell-state k17 enriched for severe COVID-19 heritability
- triple convergence (GWAS locus + caQTL + eQTL) in same context as robust causal evidence

QC result: Pass.

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