We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
The Reproductive Toxicity of Microplastics: From Environmental Contamination to Organ Distribution and Reproductive Hazards.
AI summary Read the abstract
This review pulls together existing research showing that tiny plastic particles from our environment—found in water, food, and air—are turning up in reproductive organs like ovaries, testicles, and semen. Scientists believe these particles may disrupt hormone signaling, trigger inflammation, and even damage reproductive cells, potentially affecting fertility in both men and women. While the science is still developing and more long-term studies are needed, this is an early warning sign that everyday plastic exposure could have hidden costs for reproductive health.
Microplastics (MPs) are ubiquitous in nature, contaminating various environmental media such as soil, air, and water. Moreover, they can be found in drinking water and foods, increasing the risks of human exposure. Studies have reported that MPs can be detected in various human organs, including the reproductive ones. Ovarian follicular fluids and uterine tube tissue have been documented to contain up to 7181 particles/mL and 1.40 particles/g, respectively. Similarly, samples associated with the male reproductive system are also reported with MPs. Specifically, semen and testicular tissue samples contain up to 17 and 11.60 particles/g of MPs, respectively. Growing evidence suggests that MPs can potentially harm the reproductive system by adversely affecting the development and maturation of gametes. They can modulate the cAMP/PKA/StAR pathway to affect FSH and LH. MP-induced ROS production alters the Akt/ESR1/NRF pathway to upregulate IL-1β, IL-6, and TNF-α proinflammatory cytokines. MP-mediated NLRP-3 activation promotes pyroptosis of gonadal germ cells. Therefore, in this comprehensive literature review, the latest data on the environmental distribution of MPs, their entry into the human body, and their accumulation in reproductive tissues are critically examined. The roles of oxidative stress, endocrine disruption, inflammation, and cellular apoptosis in MP-induced reproductive toxicity are also discussed. This review emphasizes the need for further toxicological evaluations and long-term epidemiological studies to fully understand the range of associated risks and highlights knowledge gaps regarding the mechanistic pathways by which MPs trigger reproductive toxicity.
More Papers Like This
Microplastics and reproductive health: implications for human health and areas for future research
AI summary Read the abstract
Tiny plastic bits called microplastics have been found in human testes, semen, ovarian fluid, and placentas, and this review of existing research suggests they may harm fertility by triggering inflammation, cell damage, and hormone disruption. While scientists are still figuring out exactly how much exposure is harmful and which types of plastic pose the biggest risk, the growing evidence is a reason to pay attention to reducing everyday plastic exposure. More research is needed before we know the full picture, but this is an area worth watching closely.
Toxicological effects of micro/nano-plastics on human reproductive health: A review
AI summary Read the abstract
This review summarizes research on how micro- and nanoplastics affect human reproductive health in both men and women. Evidence from animal and lab studies shows that these particles can accumulate in reproductive organs, disrupt hormones, damage eggs and sperm, and cause inflammation and oxidative stress. While human studies are still limited, the growing body of evidence suggests that microplastic exposure is a potential threat to fertility that warrants further investigation.
"Unseen Dangers: The Effects of Micro- and Nanoplastics on Human Reproductive Health - A Narrative Review"
AI summary Read the abstract
This review examines the effects of micro- and nanoplastics on human reproductive health, covering evidence from in vitro, animal, and epidemiological studies showing that plastic particles can disrupt hormone signaling, sperm function, ovarian development, and placental integrity.
Microplastics and male reproductive toxicity: Research progress on injury pathways and regulatory mechanisms
AI summary Read the abstract
This review pulls together existing research showing that tiny plastic particles from our environment can build up in male reproductive organs, where they've been linked to lower sperm quality in humans. Studies in animals and cells suggest these plastics may sneak past the body's natural defenses in the testicles, causing cell damage, inflammation, and hormone disruption that harms sperm production. While more research is needed to confirm exactly how much risk this poses to human fertility, the findings add to growing concerns about everyday plastic exposure and reproductive health.
Effects of micro(nano)plastics on the reproductive system: A review
AI summary Read the abstract
This review summarizes research on how micro and nanoplastics affect the reproductive system in both animal studies and cell experiments. Evidence indicates these particles can cross biological barriers, accumulate in reproductive organs, and disrupt hormones, egg development, and sperm quality. While human studies are still limited, the animal data suggests microplastic exposure may be a meaningful concern for reproductive health.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.