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This experimental study investigated developmental changes in peripheral blood biomarkers (BDNF, neurotrophins, cytokines, serotonin) in rats with autism-like features induced prenatally using valproic acid and poly I:C. Behavioral screening confirmed autism phenotypes, and blood samples were analyzed at 2, 4, 6, and 8 weeks of age to characterize biochemical alterations.
Shank3 mutant beagles represent a potentially valuable preclinical model for autism research due to their naturally evolved social behaviors that more closely resemble human autism phenotypes than rodent models. This approach aims to address the high failure rate in translating autism drug candidates from animal studies to human clinical trials.
A nationwide Danish case-control study examined whether prenatal maternal exposure to naturally occurring lithium in drinking water is associated with autism spectrum disorder (ASD) diagnosis in offspring, using geocoded residential addresses and water quality measurements. The research leverages biological plausibility (lithium's role in neurodevelopmental signaling pathways) and population-based registry data to evaluate this environmental exposure hypothesis.
This retrospective cohort study analyzed 5,595 Japanese patients newly diagnosed with bipolar disorder to examine whether a prior depression diagnosis and its duration affected psychiatric and all-cause hospitalization rates and mortality. Patients with prior depression history showed slightly lower all-cause hospitalization risk (HR=0.87), with duration of preceding depression (≥1 year vs <1 year) not significantly altering psychiatric hospitalization outcomes.
This meta-analysis of 63 studies (N=6.9 million) found significant associations between autism and psychosis-spectrum traits across multiple dimensions, with individuals having one condition showing increased risk of being diagnosed with the other. The research highlights that measurement validity and potential misinterpretation of psychosis questionnaires by autistic individuals and clinicians may contribute to these associations.
