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Probiotics as a therapeutic approach to alleviate reproductive harm from polystyrene microplastics in male rats
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Researchers tested whether probiotic supplementation could protect against reproductive toxicity caused by polystyrene microplastic exposure in male rats, finding that PS-MP caused dose-dependent testicular damage and disrupted kisspeptin signaling in the hypothalamus. Probiotics partially reversed these effects, suggesting a gut-testis axis through which microbiome modulation may mitigate reproductive harm.
Microplastics (MP) are considered as a new persistent environmental pollutant. The study investigated the impact of probiotics on reproductive toxicity induced by polystyrene microplastics (PS-MP). It was observed that PS-MP administration caused dose-dependent testicular damage and negatively regulated the expression of kisspeptin and its receptors in the hypothalamus. However, supplementation of probiotics significantly mitigated oxidative stress and inflammation in cell experiments. In animal experiments, probiotics were found to improve testicular damage, decrease sperm nitric oxide, and increase blood levels of sex hormones in a dose-dependent manner. These findings suggest that probiotics may play a role in reducing testicular damage caused by PS-MP through their anti-inflammatory and antioxidant properties. This study provides valuable insights into mitigating the reproductive damage associated with microplastic exposure and offers a new approach to addressing microplastic toxicology for reproductive health.
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Probiotics improve polystyrene microplastics-induced male reproductive toxicity in mice by alleviating inflammatory response
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Researchers found that giving mice probiotics (beneficial bacteria including Lactobacillus and Bifidobacterium) helped protect against reproductive damage caused by polystyrene microplastics. The microplastics disrupted gut bacteria and triggered inflammation that traveled to the testes via the gut-testis connection, reducing sperm quality and testosterone levels. Probiotic treatment restored healthy gut bacteria and reduced the inflammatory response, suggesting that maintaining gut health could help counteract some reproductive harm from microplastic exposure.
Lactobacillus brevis GKJOY Supplementation Ameliorates Oxidative Stress and Reproductive Dysfunction in Male Rats with Polystyrene Microplastics-Induced Reproductive Toxicity
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Researchers investigated whether the probiotic Lactobacillus brevis GKJOY could protect against reproductive damage caused by polystyrene microplastics in male rats. The study found that probiotic supplementation helped reduce oxidative stress and improved reproductive function in microplastic-exposed animals, suggesting that certain probiotics may offer protective benefits against microplastic-related reproductive toxicity.
Adolescent exposure to polystyrene nanoplastics induces male reproductive damage via the microbiome-gut-testis axis
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Researchers exposed adolescent rats to polystyrene nanoplastics for five weeks and observed dose-dependent damage to testicular tissue, disrupted spermatogenesis, and compromised blood-testis barrier integrity. The study revealed a novel microbiome-gut-testis axis mechanism, where nanoplastics altered gut bacteria composition, which in turn contributed to reproductive toxicity in developing males.
Microplastics-perturbed gut microbiota triggered the testicular disorder in male mice: Via fecal microbiota transplantation
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Researchers found that polystyrene microplastics disrupted gut microbiota in mice, which in turn triggered testicular damage and reproductive disorders. Through fecal microbiota transplantation experiments, the study suggests that gut bacteria play a critical role in microplastic-induced reproductive toxicity, with inflammatory immune responses driven by bacterial changes being a key mechanism.
Integrated fecal microbiome and metabolome analysis explore the link between polystyrene nanoplastics exposure and male reproductive toxicity in mice
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Researchers exposed mice to polystyrene nanoplastics of different sizes and doses, then analyzed fecal microbiome and metabolome changes alongside reproductive outcomes. The study found that nanoplastic exposure disrupted gut microbiota balance and metabolic pathways, which correlated with reduced sperm count, viability, and testosterone levels. The findings suggest that gut microbiota-metabolite disruption may play an important role in nanoplastic-induced male reproductive toxicity.
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