Microplastics Linked to Increased Risk for Heart Attack, Stroke, Study Finds

What it is

Microplastics have been identified in human arterial plaque, with a groundbreaking study linking their presence to a 4.5-fold increase in the risk of heart attack, stroke, and death. This association was found in patients with microplastics in their arterial plaque, who were 4.5 times more likely to experience severe cardiovascular events compared to those without plastic particles in their arteries. 

While the study does not establish causation, the presence of microplastics in plaque raises concerns about potential health risks, emphasizing the need for further research to understand the impact of these minute plastic particles on cardiovascular health.

Most common types of microplastics

The most common types of microplastics found in food and water include:

1. Polyethylene (PE): This polymer is frequently isolated in food, indicating its prevalence in the contamination of food and water samples.
2. Polypropylene (PP): Another common polymer found in food and water samples, highlighting its widespread presence in microplastic pollution.
3. Polyethylene terephthalate (PET): PET is also a commonly detected polymer in food and water, emphasizing its contribution to microplastic contamination.
4. Polyethylene terephthalate (PEST): This polymer is identified in food and water samples, indicating its role in microplastic pollution.
5. Polyamide (PA): PA is another polymer commonly found in food and water contaminated with microplastics.
6. Rayon (RY): Rayon is detected in food and water samples, contributing to the presence of microplastics in these environments.
7. Cellophane (CP): CP is identified as a common type of microplastic found in food and water samples.
8. Polystyrene (PS): PS is detected in food and water, highlighting its prevalence in microplastic contamination.
9. Acrylic: Acrylic polymers are also commonly found in food and water contaminated with microplastics.
10. Polyvinyl chloride (PVC): PVC is another type of polymer frequently isolated in food and water samples, indicating its presence in microplastic pollution.

These various types of polymers represent the most common microplastics found in food and water samples, emphasizing the diverse sources and composition of microplastic contamination in the environment.

How do microplastics enter the human body

Microplastics can enter the human body through various routes, including ingestion, inhalation, and skin contact. Research indicates that humans are potentially exposed to microplastics through these pathways. 

Ingestion occurs when we consume contaminated food and water, with studies showing microplastics in everyday fruits, vegetables, and seafood. Inhalation of airborne microplastics is another significant route, originating from sources like urban dust, synthetic textiles, and rubber tires. While the skin acts as a barrier against microplastics, it can enter through wounds, sweat glands, or hair follicles. 

These entry points contribute to the presence of microplastics and nanoplastics in the human body, with seafood and environmental exposure posing the greatest risk due to the long-term weathering of polymers and exposure to pollutants.

How do they affect human health?

Microplastics are tiny plastic particles that are frequently detected in environmental and human samples, posing a significant concern for human health. These minute plastic particles can enter the human body through oral intake, inhalation, and skin contact. 

Research has shown that exposure to microplastics can lead to various health issues, including oxidative stress, DNA damage, organ dysfunction, metabolic disorders, immune responses, neurotoxicity, reproductive and developmental toxicity, inflammation, and even potential impacts on chronic diseases. Microplastics have been found in human organs like the placenta, lungs, and blood, indicating their ability to infiltrate the body and potentially cause harm. 

Studies have shown that microplastics can cause damage to human cells, inflammation, and organ damage, affect reproduction, metabolism, and gut bacteria, and potentially lead to DNA damage and cancer. The presence of microplastics in the human body raises concerns about their long-term health implications, emphasizing the need for further research to fully understand their impact on human health.

Some ways to test for microplastics

To test for microplastics in food and water, several methods can be utilized to detect these tiny plastic particles. Some common testing methods include:

1. Microscopic Techniques: Visual Inspection
2. Analytical Techniques: Pyrolysis-Gas Chromatography-Mass Spectrometry (Py-GC-MS)

These methods play a crucial role in detecting and analyzing microplastics in various samples, including food, water, soil, sediment, and biological tissues, aiding in understanding the extent of microplastic contamination and its potential impact on human health and the environment.

What are the potential environmental impacts?

The potential environmental impacts of microplastics in food and water are significant and multifaceted, affecting various aspects of ecosystems and human health. Some key environmental impacts include:

1. Ecotoxicological Risks: Microplastics pose risks to aquatic and soil organisms, disrupting ecosystems and potentially leading to adverse effects on biodiversity.
2. Contamination of Marine Life: Microplastics contaminate marine life, affecting organisms at various trophic levels and potentially disrupting marine food chains.
3. Safety of Food: The presence of microplastics in food raises concerns about food safety, as these particles can accumulate in edible items like seafood, leading to potential health risks for consumers.
4. Long-Term Environmental Balance: Microplastics contribute to long-term environmental imbalance by persisting in ecosystems, impacting soil quality, water bodies, and overall environmental health.
5. Genomic Instability: Microplastics can disrupt genetic expression in organisms, leading to genomic instability and potential long-term consequences for species survival.

Some ways to reduce 

To reduce exposure to microplastics in food and water, here are some effective strategies based on the provided sources:

1. Avoid Bottled Water: Opt for filtered tap water over bottled water to reduce microplastic intake, as tap water generally contains fewer microplastics than bottled water
2. Use Natural Fibers: Choose clothes made from natural fibers to minimize exposure to microplastics, as synthetic fabrics can shed microfibers that contribute to environmental contamination
3. Avoid Microwaving Food in Plastic: Refrain from microwaving food in plastic containers or using plastic utensils, as heating plastic can lead to the release of microplastics into food. Instead, use glass or ceramic dishes for heating food
4. Limit Seafood Consumption: Reduce intake of seafood, especially shellfish like mussels and oysters, which tend to accumulate high levels of microplastics. Opt for fish occasionally instead
5. Choose Natural Flooring Products: Select flooring made from natural materials rather than synthetic options to minimize exposure to microplastics in indoor environments
6. Avoid Certain Types of Plastics: Steer clear of plastics with recycling codes 3, 6, and 7, as they are known to contain harmful chemicals like phthalates and bisphenols. Opt for glass, silicone, or aluminum containers instead of plastics with these codes
7. Store Food in Metal or Glass Containers: Store food in metal or glass containers rather than plastic wrap or bags to prevent chemical leaching from plastic into food over time

By implementing these practices such as avoiding bottled water, using natural fibers, and being mindful of plastic usage in daily routines, individuals can significantly reduce their exposure to microplastics in food and water, contributing to both personal health and environmental well-being.

The Bottom Line

the presence of microplastics in food and water poses significant risks to human health and the environment. These tiny plastic particles can enter the body through various pathways, potentially leading to a range of health issues. Common types of microplastics found in food and water include polyethylene, polypropylene, and polyethylene terephthalate, among others. The environmental impacts of microplastics are far-reaching, affecting ecosystems, marine life, and food safety.

Referance:

https://www.healthline.com/health-news/microplastics-linked-to-increased-risk-for-heart-attack-stroke-study-finds#60%-of-patients-had-microplastics-in-arteries