The Geographic Distribution of Liver Cancer in Canada Does Not Associate with Cyanobacterial Toxin Exposure

International Journal of Environmental Research and Public Health

Chris Green¹  Giselle Mak¹  Janet Nowatzki¹  Lin Xue¹  Jane Griffith¹  Meaghan A. Labine²  Gerald Y. Minuk³ 

[1] Cancer Care Manitoba, University of Manitoba, Winnipeg, MB R3T 2N2, Canada;Department of Pharmacology and Therapeutics, University of Manitoba, Winnipeg, MB R3T 2N2, Canada;Morberg Family Chair in Hepatology, Department of Internal Medicine, University of Manitoba, John Buhler Research Centre, 715 McDermot Ave. Winnipeg, MB R3E 3P4, Canada;

关键词: cyanobacteria;    cyanotoxins;    microcystin;    liver cancer;    blue-green algae;    eutrophication;    hepatitis B;    hepatitis C;   

DOI  :  10.3390/ijerph121214969

来源: DOAJ

【 摘 要 】

Background: The incidence of liver cancer has been increasing in Canada over the past decade, as has cyanobacterial contamination of Canadian freshwater lakes and drinking water sources. Cyanotoxins released by cyanobacteria have been implicated in the pathogenesis of liver cancer. Objective: To determine whether a geographic association exists between liver cancer and surrogate markers of cyanobacterial contamination of freshwater lakes in Canada. Methods: A negative binomial regression model was employed based on previously identified risk factors for liver cancer. Results: No association existed between the geographic distribution of liver cancer and surrogate markers of cyanobacterial contamination. As predicted, significant associations existed in areas with a high prevalence of hepatitis B virus infection, large immigrant populations and urban residences. Discussion and Conclusions: The results of this study suggest that cyanobacterial contamination of freshwater lakes does not play an important role in the increasing incidence of liver cancer in Canada.

【 授权许可】

Unknown