
bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 3, 2024
Abstract In animal models, exposure to heightened maternal inflammation in utero is associated with altered offspring hippocampal development, including reduced dendritic arborization and density. However, the effects of prenatal (PNMI) on microstructure humans remains unclear. Here, we examined relationship between PNMI neurite density hippocampus its subfields among during late middle age. Participants included 72 mother-offspring dyads from Child Health Development Studies (CHDS) cohort. Data for four inflammatory biomarkers (IL-6, IL-8, IL-1 receptor antagonist [IL-1RA], soluble TNF receptor-II [sTNF-RII]) were available first second trimester sera. Neurite was estimated using microstructural modeling offsprings’ diffusion-weighted Magnetic Resonance Imaging data (mean age at imaging = 59 years; 51% male). We each biomarker region-of-interest’s Higher IL-1RA IL-6 levels lower These relationships specific CA3, CA4, dentate gyrus, subiculum subfields. addition, higher Our findings reveal that linked age, which could have implications memory decreases this period may be relevant understanding risk aging-related cognitive changes. Significance Statement The contribution brain later life well established but poorly understood humans. study discovered long-lasting impacts elevated early-mid gestation structural integrity underscore potential role developmental programming neurological decline, as observed degradation present over half a century following exposure.
Language: Английский