ArticleNeuroscience bulletin2026
Maternal Stress During Pregnancy Induces Higher Anxiety-Like Behavior in Male Mice Offspring Under Acute Stress by Upregulating CRF/CRFR1 and Driving Time-Specific Activation of the MHb-IPN Circuit.
Article in Neuroscience bulletin, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
This study reveals that maternal stress during pregnancy (MSDP) increases anxiety susceptibility in male offspring through Corticotropin-Releasing Factor Receptor 1 (CRFR1)-mediated time-specific hyperactivation of medial habenula (MHb) cholinergic projections to the interpeduncular nucleus (IPN). Male MSDP offspring exhibited heightened anxiety-like behaviors following 30 minutes of acute restraint stress (ARS). In vivo calcium imaging showed excessive activation of MHb ChAT-IPN projections specifically during the late phase (25-30 min) of ARS in MSDP offspring. Chemogenetic and optogenetic manipulations confirmed that this time-specific circuit hyperactivation drives anxiety susceptibility. Mechanistically, MSDP upregulated CRF/CRFR1 in the MHb. Pharmacological experiments demonstrated that CRFR1 activation directly enhances circuit activity. CRFR1 overexpression recapitulated MSDP phenotypes by increasing circuit activity and anxiety, while CRFR1 antagonism reversed both circuit hyperactivation and anxiety behaviors. Chemogenetic circuit inhibition blocked CRFR1 overexpression-induced anxiety, confirming that CRFR1 drives anxiety through this pathway.
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