Humans and dogs: a tandem relationship. - For the first time, microplastics have been discovered in testicles.
A team of scientists examined 47 dog testicles and 23 human testicles, all of which were obtained during castrations or autopsies. The researchers discovered that each and every one of these samples contained microplastic contamination.
The Harmful Effects of Microplastics on Humans
Each day, vast amounts of plastic sweep into the environment. It has been determined that people consume and inhale minuscule pieces of plastic through their food and water. While the precise repercussions on health have yet to be fully understood, studies indicate that microplastics harms human cells in a laboratory setting.
"To begin with, I was doubtful that microplastics could infiltrate the reproductive system," stated Prof. Xiaozhong Yu. "I was astounded by the results for dogs, and I was even more flabbergasted when I received the results for humans."
The testicles scrutinized belonged to men who ranged in age from 16 to 88 at the time of their demise. Yu commented, "Considering the impact on the younger generation could be more detrimental." Given the current state of the environment, there's more plastic present than ever before.
In comparison to dog testicles, human testicles had a plastic concentration of almost three times as much: 330 micrograms per gram of tissue to 123 micrograms. Polyethylene, commonly employed in plastic bags and bottles, was the most prevalent type of microplastic discovered, followed by PVC.
Yu explained, "PVC may release various chemicals that disrupt spermatogenesis. It also contains chemicals that cause endocrine disruption."
Microplastics Are Linked to Decreased Sperm Counts
Sperm counts in men have been in a steady decline for several years, with some studies pointing to chemical exposures like pesticides as likely culprits. Microplastics have recently been found in human blood, placenta, and breast milk.
Since human testicles were taken from deceased individuals, their sperm count could not be evaluated. However, the sperm count could be determined in dog testicles. The finding: testicles with higher contamination had a lower sperm count.
The study shows a link, but as per the researchers, further research is necessary to verify that microplastics are indeed responsible for decreased sperm counts.
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Source: symclub.org
