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Detection of microplastics in human colectomy specimens
Yusof Shuaib Ibrahim1, Sabiqah Tuan Anuar1, Alyza A Azmi1
1Microplastic Research Interest Group, Faculty of Science and Marine Environment Universiti Malaysia Terengganu Kuala Nerus Malaysia.
JGH Open : an Open Access Journal of Gastroenterology and Hepatology
|January 25, 2021
Summary
Microplastics were found in all human colon samples examined. This study confirms the ubiquitous presence of microplastics in the human digestive tract, highlighting potential health concerns.
Area of Science:
- Environmental Science
- Toxicology
- Gastroenterology
Background:
- Dietary microplastic exposure is a growing concern.
- The presence and fate of ingested microplastics within the human digestive tract remain largely unknown.
Purpose of the Study:
- To investigate the presence of microplastics in human colectomy specimens.
- To characterize microplastics found in the colon, including their polymer composition.
Main Methods:
- Colectomy samples from 11 adults in Malaysia were analyzed.
- Microplastics were isolated via chemical digestion and filtration.
- Particles were characterized using stereo microscopy and Fourier Transform Infrared (FTIR) spectroscopy for polymer identification.
Main Results:
- Microplastics were detected in 100% of the analyzed human colon specimens.
- An average of 331 particles per specimen (28.1 particles/g tissue) were found.
- Filaments/fibers constituted 96.1% of particles, predominantly transparent, with polycarbonate, polyamide, and polypropylene as major polymer types.
Conclusions:
- Microplastics are ubiquitously present in the human colon.
- This finding underscores the widespread contamination of the human digestive system with microplastics.
