Microplastics have been found in various places in the human body, including the bloodstream, brain and lungs. According to a study the male reproductive organs are no exception.
New research, published this month, shows that microplastics can accumulate in the testicles of humans and dogs. This raises more questions about the potential health impacts of these particles.
Key findings of the study
- Research on animals: They have shown that exposure to microplastics can affect sperm quality and male fertility. However, scientists are still in the early stages of translating this work to human health.
- The spread of microplastics: The study found a wide range and high concentration of microplastics in the testicles of about 22 men and close to 50 dogs.
- Reproductive organs: Dr. John Yu, a toxicologist at the University of New Mexico College of Nursing and lead author of the study, points out that "microplastics are everywhere."
The composition of microplastics
- Percentage: About 75% of what remained from the digestion of biological tissue was plastic.
- Types of plastic: Polyethylene (PE) accounted for a large share, followed by polyvinyl chloride (PVC).
Potential health effects
- Sperm count: There is an association between lower sperm count and presence of PVC.
- Testicular weight: Greater levels of PVC and PET are associated with decreased testicular weight.
Expert reactions
- Tracey Woodruff: "Studies like this are compelling and should be a wake-up call for policy makers"
- Richard Lea: The findings are "alarming"
Unanswered questions
- Penetration mechanisms: It is still not known exactly how microplastics are getting into the testicles.
- Clinical effects: The clinical consequences of the presence of testicular microplastics remain unclear.
University of New Mexico study
- Quality control: Used a quality control process to protect samples from accidental exposure to microplastics.
- Future challenges: The link of small particles to declining reproductive health is still difficult to establish.
Conclusion
- Increase research: Future studies should target the link between microplastic exposure and its impact on reproductive health.
- Dr. Shanna Swan: "This is really the beginning. It is suggestive, important and preliminary."
In conclusion, microplastics in the human body, especially in the male reproductive organs, is an area of study that requires more attention and research to fully understand its health impacts.
