Atlas and source of the microplastics of male reproductive system in human and mice.
Level 4 - case-series / case-control
Cross-sectional human tissue and semen analysis combined with an animal model and exposure questionnaire
PubMed 38466387 · doi:10.1007/s11356-024-32832-x
What was done
Researchers performed qualitative and quantitative analysis of microplastics (MPs) using pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) in human testis, semen, and epididymis samples, as well as in mouse testis, epididymis, seminal vesicle, and prostate samples. They also administered an exposure questionnaire to men to identify lifestyle and environmental factors associated with MP detection.
What was found
The abstract reports no specific quantitative values, concentrations, polymer types, or statistical effect sizes. It qualitatively reports the presence of MPs throughout male reproductive tissues in humans and mice, suggests that semen MPs may originate from the epididymis, seminal vesicles, and prostate, and notes that high urbanization, home-cooked meals, and scrub cleansers were identified as important exposure sources.
Why it matters
This study maps the anatomical distribution of microplastics across the male reproductive tract in humans and mice, offering candidate tissue sources for semen contamination and potential lifestyle exposure pathways.
Limits
The abstract does not disclose sample sizes for human subjects, tissue specimens, or mice. No quantitative measurements, polymer characterization data, contamination controls, or statistical significance values are provided in the abstract. Exposure associations derived from questionnaires are observational and subject to confounding.
Cited by
- supports Microplastics have been identified in human testicular tissue, sperm, and the blood-testis barrier.