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Exploring the impact of polyethylene terephthalate nanoplastics on male reproductive health: Insights from a mouse model study
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Researchers investigated the effects of PET nanoplastics on male reproductive function, examining sperm quality, hormone levels, and testicular tissue in animal models. PET nanoplastic exposure reduced sperm motility and caused histological changes in testicular tissue, suggesting a potential role in male infertility.
Infertility, defined as the inability to achieve pregnancy after 12 months or more of regular unprotected sexual intercourse, is influenced by various genetic and environmental factors. Among these factors, exposure to microplastics and nanoplastics (NPs) has emerged as a potential contributor to male infertility. In this study, we aimed to investigate the effects of sub-chronic exposure to polyethylene terephthalate (PET) nanoplastics on male reproductive health using a mouse model. For this aim first, we produced 56 nm PET-NPs by dilution-precipitation technique. Then, eighteen Balb-C mice, randomly divided into three groups (n=6) were exposed to 0, 0.1, and 0.5 mg/day PET-NPs for 28 days by oral gavage. Following the sub-chronic exposure testis index, sperm counts and morphology, DNA strand breaks, and spermatogenesis were evaluated. Our data revealed that sub-chronic exposure to PET-NPs did not significantly affect testis index in both PET-NP exposed groups compared to the control. On the other hand, both 0.1 and 0.5 mg/day PET-NP exposed groups exhibited a significant decrease in sperm counts (P Also see: https://micro2024.sciencesconf.org/558671/document
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Exploring the impact of polyethylene terephthalate nanoplastics on male reproductive health: Insights from a mouse model study
AI summary Read the abstract
Researchers investigated the impact of polyethylene terephthalate nanoplastics on male reproductive health, examining whether nanoplastic exposure contributes to infertility by affecting sperm function, hormone levels, or testicular tissue. Results showed PET nanoplastics impaired reproductive endpoints in the male reproductive system, adding to growing concern about plastic particle effects on fertility.
Assessing the impact of sub-chronic polyethylene terephthalate nanoplastic exposure on male reproductive health in mice
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Researchers exposed male mice to nanoplastics made from PET (the same plastic used in water bottles and food containers) and found significant damage to their reproductive health. The nanoplastics reduced sperm quality, damaged testicular tissue, and disrupted hormone levels, raising concerns about how everyday plastic packaging may affect male fertility.
Unseen Threats: The Long‐term Impact of PET‐Microplastics on Development of Male Reproductive Over a Lifetime
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Mice that ingested tiny PET plastic particles (the same plastic used in water bottles) over 29 weeks showed serious damage to their reproductive systems. Males had 69% fewer sperm, 24% less testosterone, and significantly smaller reproductive organs. These findings raise concerns that long-term exposure to microplastics from everyday plastics could harm male fertility in humans.
Microplastics and nanoplastics: potential implications for testicular inflammation in male mammals
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This review pulls together animal research showing that tiny plastic particles can reach the testes and trigger inflammation, damage protective barriers, and disrupt hormone production. While these effects have mostly been studied in rodents, they raise real concerns about male fertility. More research is needed to confirm how this applies to humans.
The emerging risk of exposure to nano(micro)plastics on endocrine disturbance and reproductive toxicity: From a hypothetical scenario to a global public health challenge
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Researchers administered polystyrene nanoplastics orally to male rats for five weeks and found significant reductions in testosterone, LH, and FSH levels, sperm DNA damage, altered testicular gene expression, and dose-dependent histological lesions, indicating that nanoplastic exposure disrupts the hormonal axis governing male reproductive function.
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