What question did this study set out to answer?

To establish an early life stress model in zebrafish embryos and determine the role of glucocorticoid signaling in mediating stress-induced behavioral deficits.

August 19, 2026StressOpen Access

Early life stress and glucocorticoid signaling in zebrafish embryos

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Authors

MBMichael Burman WSWillard Swift TMTyler McGoldrick

Discussion

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Overview

Experimental study demonstrates that glucocorticoid receptor disruption mimics stress-induced locomotor deficits in zebrafish embryos, indicating a critical endocrine pathway in neurodevelopment.

Key Points

To establish an early life stress model in zebrafish embryos and determine the role of glucocorticoid signaling in mediating stress-induced behavioral deficits.
Exposed zebrafish embryos to early life stress using intermittent light and vibration protocols.
Evaluated baseline locomotion and light/dark transition responses at 4 days post-fertilization across wild-type, glucocorticoid receptor mutant (grs357), and pharmacologically treated larvae.
Early life stress significantly reduced baseline locomotion and light/dark transition-induced activity at 4 days post-fertilization.
Genetic disruption of the glucocorticoid receptor via the grs357 mutation mimicked the locomotor deficits, which were partially reversed by pharmacological inhibition of cortisol synthesis, whereas exogenous hydrocortisone increased locomotion.

Cite This Study

Burman et al. (2026) studied this question.

synapsesocial.com/papers/6a8563ae03308d306e2d6f5c https://doi.org/10.1080/10253890.2026.2718136

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August 19, 2026StressOpen Access

Early life stress and glucocorticoid signaling in zebrafish embryos

View Full Paper

Ask AI

Bookmark

Authors

MBMichael Burman WSWillard Swift TMTyler McGoldrick

Discussion

Member takes

Overview

Experimental study demonstrates that glucocorticoid receptor disruption mimics stress-induced locomotor deficits in zebrafish embryos, indicating a critical endocrine pathway in neurodevelopment.

Key Points

To establish an early life stress model in zebrafish embryos and determine the role of glucocorticoid signaling in mediating stress-induced behavioral deficits.
Exposed zebrafish embryos to early life stress using intermittent light and vibration protocols.
Evaluated baseline locomotion and light/dark transition responses at 4 days post-fertilization across wild-type, glucocorticoid receptor mutant (grs357), and pharmacologically treated larvae.
Early life stress significantly reduced baseline locomotion and light/dark transition-induced activity at 4 days post-fertilization.
Genetic disruption of the glucocorticoid receptor via the grs357 mutation mimicked the locomotor deficits, which were partially reversed by pharmacological inhibition of cortisol synthesis, whereas exogenous hydrocortisone increased locomotion.

Cite This Study

Burman et al. (2026) studied this question.

synapsesocial.com/papers/6a8563ae03308d306e2d6f5c https://doi.org/10.1080/10253890.2026.2718136

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