ArticleBiology of reproduction2025
Developmental programming: mechanisms of early exposure to real-life chemicals in biosolids on offspring ovarian dynamics†.
Article in Biology of reproduction, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
3 citing papers in PubMed.
- Maternal exposure to biosolids reshapes chemical burden and steroidogenic pathways to promote adipogenic differentiation in a sheep model.Environment international · 2026Article
- Sex-specific multigenerational epigenetic responses to real-world chemical mixture exposure in an outbred sheep model.bioRxiv : the preprint server for biology · 2026Article
- Living in a chemical cocktail: real-world mixture exposures and their impact on ovarian function.The Journal of reproduction and development · 2026Review
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Authors and funding
8 authors.
Funding
Abstract
Female reproductive capacity is shaped by ovarian reserve and patterns of follicle development. Ovarian reserve depletion occurs by follicle activation and atresia, which are affected by environmental chemicals (ECs). Because humans are simultaneously exposed to hundreds of ECs, real-life exposure models are essential to assess patterns of atresia after EC exposure. Previous findings demonstrate maternal preconceptional and gestational EC exposure via biosolids increases activation rate and reduces primordial follicle pool in juvenile, but not adult sheep. We hypothesized that this shift involves changes in death and proliferative pathways that impact follicle atresia from juvenile to adult life. Ovaries were collected from juvenile (9.5 weeks) and adult (2.5 years) offspring from ewes grazed on biosolids-treated pasture (BTP) or inorganic fertilizer-treated pasture (Control). Follicular atresia was assessed through morphological characteristics and molecular death pathways, including expression of markers for apoptosis (CASP3), autophagy (LC3), ferroptosis (GPX4), and proliferation (Ki67). There were higher levels of apoptosis and autophagy, and lower proliferation, in juvenile BTP offspring compared to controls. In adult BTP offspring, apoptosis and proliferation were similar, autophagy was lower, and ferroptosis was higher compared to controls. Apoptosis was lower and ferroptosis was higher in adults than juveniles, regardless of treatment. Adult BTP offspring had lower autophagy and similar proliferation levels than juvenile BTP offspring. These findings suggest that lower autophagy and lack of decrease in proliferation contribute to normalization of activation rate and ovarian pool in BTP adult offspring and supportive of lasting impacts of gestational EC exposure on offspring follicular health.
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