Revealing new insights: Two-center evidence of microplastics in human vitreous humor and their implications for ocular health

人类健康 微塑料 眼科 增殖性玻璃体视网膜病变 医学 人眼 视网膜 化学 视网膜脱离 环境卫生 环境化学 物理 光学
作者
Yizhou Zhong,Yuhang Yang,Linan Zhang,Dahui Ma,Kailiang Wen,Jiachun Cai,Zhanmou Cai,Cui Wang,Xiaoyan Chai,Jingwen Zhong,Boxuan Liang,Yuji Huang,Hongyi Xian,Zhiming Li,Xingfen Yang,Da Chen,Guoming Zhang,Zhenlie Huang
出处
期刊:Science of The Total Environment [Elsevier]
卷期号:: 171109-171109 被引量:9
标识
DOI:10.1016/j.scitotenv.2024.171109
摘要

Microplastics (MPs), an emerging environmental contaminant, have raised growing health apprehension due to their detection in various human biospecimens. Despite extensive research into their prevalence in the environment and the human body, the ramifications of their existence within the enclosed confines of the human eye remain largely unexplored. Herein, we assembled a cohort of 49 patients with four ocular diseases (macular hole, macular epiretinal membrane, retinopathy and rhegmatogenous retinal detachment) from two medical centers. After processing the samples with an optimized method, we utilized Laser Direct Infrared (LD-IR) spectroscopy and Pyrolysis Gas Chromatography/Mass Spectrometry (Py-GC/MS) to analyze 49 vitreous samples, evaluating the characteristics of MPs within the internal environment of the human eye. Our results showed that LD-IR scanned a total of 8543 particles in the composite sample from 49 individual vitreous humor samples, identifying 1745 as plastic particles, predominantly below 50 μm. Concurrently, Py-GC/MS analysis of the 49 individual samples corroborated these findings, with nylon 66 exhibiting the highest content, followed by polyvinyl chloride, and detection of polystyrene. Notably, correlations were observed between MP levels and key ocular health parameters, particularly intraocular pressure and the presence of aqueous humor opacities. Intriguingly, individuals afflicted with retinopathy demonstrated heightened ocular health risks associated with MPs. In summary, this research provides significant insights into infiltration of MP pollutants within the human eye, shedding light on their potential implications for ocular health and advocating for further exploration of this emerging health risk.
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