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Cadmium exposure and risk of pancreatic cancer: Systematic review and meta-analysis.

Yaser Soleimani¹, Mohammad Nayebi¹, Sheyda Mahmoudi¹

¹Medical School, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

|April 29, 2025

Summary

This summary is machine-generated.

This study found that cadmium exposure more than doubles the risk of pancreatic cancer. Further research is needed to understand the mechanisms and reduce exposure to this environmental risk factor.

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Published on: November 19, 2019

Area of Science:

Environmental Health
Oncology
Toxicology

Background:

Pancreatic cancer has a poor prognosis and limited treatment options.
Environmental factors, such as heavy metal exposure, are increasingly implicated in cancer development.
Cadmium, a known carcinogen, has a suspected but unconfirmed role in pancreatic cancer.

Purpose of the Study:

To systematically review and meta-analyze the association between cadmium exposure and pancreatic cancer risk.
To quantify the risk of pancreatic cancer associated with cadmium exposure.
To identify cadmium as a potential environmental risk factor for pancreatic cancer.

Main Methods:

A comprehensive literature search was performed across multiple databases.
Eleven eligible studies were included in the meta-analysis.
Pooled odds ratios (OR) with 95% confidence intervals (CI) were calculated, and heterogeneity and publication bias were assessed.

Main Results:

A significant association was found between cadmium exposure and increased pancreatic cancer risk (OR = 2.01, 95% CI: 1.30, 2.72).
Individuals exposed to cadmium had over double the risk of developing pancreatic cancer.
Substantial heterogeneity was noted across studies, but no publication bias was detected.

Conclusions:

Cadmium exposure is significantly associated with an increased risk of pancreatic cancer.
Cadmium is identified as a potential environmental risk factor for pancreatic cancer.
Further research into biological mechanisms and exposure reduction strategies is warranted.