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Dopamine release and dopamine-related gene expression in the amygdala are modulated by the gastrin-releasing peptide in opposite directions during stress-enhanced fear learning and extinction

Morishata Y, Fuentes I, Gonzalez-Salinas S, Favate J, Mejaes J, Zushida K, Nishi A, Hevi C, Goldsmith N, Buyske S, Sillivan SE, Miller CA, Kandel ER, Uchida S, Shah P, Alarcon JM, Barker DJ, Shumyatsky GP (2024) Dopamine release and dopamine-related gene expression in the amygdala are modulated by the gastrin-releasing peptide in opposite directions during stress-enhanced fear learning and extinction. Molexular Psychiatry doi: 10.1038/s41380-024-02843-8 PMID: 39580604

Objective: To investigate neural circuits serving the dopamine function for fear extinction and PTSD.

Summary: Results demonstrate that gastrin-releasing peptide regulates dopamine function in stress-enhanced fear processing and identifies Grp as the first gene known to regulate dopaminergic control of fear extinction.

Usage: Bombesin-SAP (IT-40) or Blank-SAP (IT-21) (80 ng/µl) dissolved in saline were injected bilaterally into the basolateral amygdala (AP: -2.0 mm, ML: ±3.25 mm, DV: -4.3 mm) in 0.3 µl volume.

Related Products: Bombesin-SAP (Cat. #IT-40), Blank-SAP (Cat. #IT-21)

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