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Updated: Jan 18, 2026
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Long-term Behavioral and Reproductive Consequences of Embryonic Exposure to Low-dose Toxicants
Published on: March 6, 2018
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Aluminum exposure disturbs epigenetic modification and organelle function during early embryo development
Xiao-Ting Yu1, Zhen-Hui Fu2, Wen-Lin Pan3
1Key Laboratory of Research on Clinical Molecular Diagnosis for High Incidence Diseases in Western Guangxi of Guangxi Higher Education Institutions, Reproductive Medicine of Guangxi Medical and Health Key Discipline Construction Project, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.
Chemico-Biological Interactions
|September 7, 2025
Summary
Aluminum exposure harms early mouse embryo development by causing oxidative stress, DNA damage, and organelle dysfunction. This research highlights the toxic effects of aluminum on mammalian reproduction.
Area of Science:
- Developmental Biology
- Toxicology
- Cell Biology
Background:
- Aluminum is a ubiquitous metal with diverse industrial applications.
- While known to affect adult organ systems, its impact on early mammalian development is less understood.
Purpose of the Study:
- To investigate the effects of aluminum exposure on mammalian embryo development.
- To elucidate the underlying molecular mechanisms of aluminum-induced developmental toxicity.
Main Methods:
- Exposure of mouse embryos to aluminum.
- Assessment of embryo development stages (zygotes, 2-cell).
- Measurement of transcription activity, reactive oxygen species (ROS), DNA damage, histone modifications, and organelle distribution (lysosomes, ER, Golgi).
Main Results:
- Aluminum exposure caused defects in early mouse embryo development.
- Observed mitochondrial dysfunction and increased ROS levels, leading to oxidative stress and DNA damage.
- Significant alterations in histone modifications (H3K4me2, H3K4me3, H3K27me3, H4K12ac) and aberrant organelle distribution were noted.
Conclusions:
- Aluminum exposure disrupts early mammalian embryo development.
- Mitochondria-driven oxidative stress, DNA damage, altered histone modifications, and organelle dysfunction are key mechanisms.
- These findings underscore the potential reproductive risks associated with aluminum exposure.
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