ArticleTranslational psychiatry2025
Oxytocin improves maternal licking behavior deficits in autism-associated Shank3 mutant dogs.
Article in Translational psychiatry, 2025. 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
Impaired social interaction and repetitive behavior are key features observed in individuals with autism spectrum disorder (ASD). SHANK3 is a high-confidence ASD risk gene that encodes an abundant scaffolding protein in the postsynaptic density. In wild-type (WT) domestic dogs, maternal behaviors such as licking and nursing (largely milk feeding) of puppies are most commonly observed. To address whether SHANK3 plays a role in social behaviors especially maternal behaviors, we analyzed Shank3 mutant dogs generated by CRISPR/Cas9 methodology. We found that Shank3 mutant dams exhibited a fewer and shorter licking behavior, as well as reduced nursing frequency when compared with WT dams. Additionally, a significant decrease in blood oxytocin (OXT) concentration was detected in Shank3 mutant dams. We thus conducted a vehicle-controlled experiment to examine whether a two-week intranasal OXT treatment, initiated on the 8
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