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Multi-omics analysis of testis after long-term exposure to polystyrene nanoplastics reveals premature testicular aging and age-dependent damage in mice
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Researchers used multi-omics analysis to study the effects of long-term polystyrene nanoplastic exposure on mouse testes and found signs of premature testicular aging. The damage was dependent on both the age of the mice and the duration of exposure, with younger animals showing particular vulnerability. The study suggests that protecting mRNA metabolism and testosterone production could help preserve reproductive function in males exposed to nanoplastics.
Integrated with multi-omics analyses, our study collectively extends the current understanding of PS-NP-induced testicular and sperm toxicology, highlighting age- and duration-dependent risks to male reproduction. Protecting mRNA metabolism and testosterone production may help preserve reproductive capacity in young males exposed to NPs.
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Exploring the Biological Effects of Polystyrene Nanoplastics on Spermatogenesis: Insights From Transcriptomic Analysis in Mouse Spermatocytes
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Researchers exposed mouse spermatocytes to polystyrene nanoplastics and observed membrane disruption, mitochondrial damage, increased oxidative stress, and DNA damage within 24 hours. Transcriptomic analysis revealed 134 genes with altered expression, many linked to critical reproductive processes like sperm development and mitochondrial organization. The study suggests that nanoplastic exposure may interfere with male reproductive health at the cellular and genetic level.
Transcriptome and proteome analyses reveal the mechanisms involved in polystyrene nanoplastics disrupt spermatogenesis in mice
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Using advanced genetic and protein analysis, researchers found that polystyrene nanoplastics disrupted sperm production in male mice after 28 days of exposure. The nanoplastics reduced sperm count and movement, damaged the structure of sperm-producing tubes, triggered cell death, and lowered hormone levels needed for male fertility. This study provides detailed molecular evidence for how nanoplastic exposure could contribute to male reproductive problems.
Integrated transcriptomic and metabolomic analysis reveals the underlying mechanisms for male reproductive toxicity of polystyrene nanoplastics in mouse spermatocyte-derived GC-2spd(ts) cells
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Researchers used integrated transcriptomic and metabolomic analysis to investigate how polystyrene nanoplastics affect mouse spermatocyte cells. They found that nanoplastic exposure disrupted lipid metabolism, triggered oxidative stress, and activated cell death pathways in the reproductive cells. The study suggests that nanoplastic exposure may pose risks to male reproductive health by interfering with critical metabolic and gene expression processes in developing sperm cells.
Long‐term nanoplastics exposure contributes to impaired steroidogenesis by disrupting the hypothalamic‐testis axis: Evidence from integrated transcriptome and metabolome analysis
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Researchers exposed male mice to nanoplastics for 12 weeks and found that long-term exposure disrupted the hormonal signaling pathway between the brain and testes, leading to reduced sperm quality and lower testosterone levels. Evidence indicates that the disruption involved changes in key enzymes and metabolic pathways responsible for producing reproductive hormones.
Toxicity to the Male Reproductive System after Exposure to Polystyrene Nanoplastics: A Macrogenomic and Metabolomic Analysis
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Researchers exposed male mice to polystyrene nanoplastics of different sizes through their drinking water for four months and found significant harm to reproductive function. The nanoplastics disrupted gene activity and metabolic pathways in the gut, which was linked to reduced sperm quality and testicular damage. The study suggests that long-term nanoplastic exposure through drinking water may pose risks to male reproductive health.
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