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Could Microplastics Be the Reason for the High Gallbladder Cancer Incidence in Northern India?

Indian Journal of Medical and Paediatric Oncology 2025 1 citation ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Jeffrey Mathew Boby, Aju Mathew

Summary

Researchers explored whether microplastic contamination in the river Ganges could be contributing to the unusually high rates of gallbladder cancer along northern India's Gangetic belt. They reviewed existing literature on the potential carcinogenic effects of microplastics and noted strong circumstantial evidence linking pollution levels to cancer incidence in the region. The authors emphasize that no proven association exists yet and call for extensive further studies.

Study Type Environmental

Abstract India accounts for more than 15% of all gallbladder cancer (GBC) diagnosed worldwide, with around 21,000 new cases diagnosed in 2022. However, a large proportion of these cases are concentrated along the banks of river Ganges flowing through northern and northeastern parts of India. GBC incidence in the Gangetic belt is around 10 times more than the rates reported from the rest of the country. In our article, we evaluated the various factors responsible for this geographic disparity and propose microplastic contamination of the river Ganges as the possible etiology for increased GBC prevalence along the Gangetic belt. Here, we attempted to describe existing literature on the harmful effects of microplastics particularly focusing on its carcinogenic potential. Although no proven association exists between GBC and microplastics, we believe there is strong circumstantial evidence to support this claim. However. extensive studies on the role of microplastics in GBC pathophysiology should be performed before any conclusion can be made on its carcinogenic potential.

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