Exosomal microrna differential expression in plasma of young adults with chronic mild traumatic brain injury and healthy control

Rany Vorn, Maiko Suarez, Jacob C. White, Carina A. Martin, Hyung Suk Kim, Chen Lai, Sijung Yun, Jessica M. Gill, Hyunhwa Lee

Research output: Contribution to journalArticlepeer-review

Abstract

Chronic mild traumatic brain injury (mTBI) has long-term consequences, such as neurological disability, but its pathophysiological mechanism is unknown. Exosomal microRNAs (exo-miRNAs) may be important mediators of molecular and cellular changes involved in persistent symptoms after mTBI. We profiled exosomal microRNAs (exomiRNAs) in plasma from young adults with or without a chronic mTBI to decipher the underlying mechanisms of its long-lasting symptoms after mTBI. We identified 25 significantly dysregulated exomiRNAs in the chronic mTBI group (n = 29, with 4.48 mean years since the last injury) compared to controls (n = 11). These miR-NAs are associated with pathways of neurological disease, organismal injury and abnormalities, and psychological disease. Dysregulation of these plasma exomiRNAs in chronic mTBI may indi-cate that neuronal inflammation can last long after the injury and result in enduring and persistent post-injury symptoms. These findings are useful for diagnosing and treating chronic mTBIs.

Original languageEnglish (US)
Article number36
JournalBiomedicines
Volume10
Issue number1
DOIs
StatePublished - Jan 2022

Keywords

  • ExomiRNA
  • Exosome
  • MicroRNA
  • Mild traumatic brain injury

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • General Biochemistry, Genetics and Molecular Biology

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