Synapse
⌘+K
Synapse
PulseExploreClubsResearchersJournals
Instagram
HomeClubsExplore
December 4, 2025FishesOpen Access

Non-Genomic Cortisol Signaling Regulates Early Myogenic Gene Expression in Rainbow Trout Skeletal Muscle

View Full Paper
Ask AI
Bookmark
Share

Authors

CFCarlos D. FigueroaRZRodrigo ZuloagaGUGiorgia D. Ugarte

Discussion

Loading...

Member takes

Overview

Observational analysis reveals cortisol boosts myogenic gene pax3 and myf5 in teleosts, suggesting a role in muscle adaptation.

Key Points

  • Cortisol and cortisol-BSA increased pax3 and myf5 expression in rainbow trout skeletal muscle, indicating rapid transcriptional activation.
  • Transcript analysis showed significant changes at 1 hour, with cortisol upregulating gene expression and prolonged exposure leading to downregulation.
  • Assessment using cortisol-BSA confirmed activation of PKA and downstream CREB, essential for regulating myogenic responses in fish.
  • These findings highlight the importance of non-genomic cortisol signaling in fish muscle development and stress adaptation.

Cite This Study

Figueroa et al. (2025) studied this question.

synapsesocial.com/papers/694023fa2d562116f28fdacfhttps://doi.org/10.3390/fishes10120621
View Full Paper
Ask AI
Bookmark
Share

Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Transcriptomic and Epigenomic Responses to Cortisol-Mediated Stress in Rainbow Trout (Oncorhynchus mykiss) Skeletal Muscle2024 · 11 citations
  2. 2Chronic Cortisol Exposure Reshapes Chromatin Accessibility and Gene Expression: Implications for Growth and Welfare in Rainbow Trout (Oncorhynchus mykiss)2026
  3. 3Bigger is not better: cortisol-induced cardiac growth and dysfunction in salmonids2017 · 43 citations
  4. 4Epigenomic patterns in fish with divergent cortisol reactivity2026
  5. 5Early Life Glucocorticoid Exposure Modulates Immune Function in Zebrafish (Danio rerio) Larvae2020 · 19 citations