The Claim
The prevalence of colibactin-induced mutational signatures SBS88 and ID18 is correlated with higher age-standardized incidence rates of colorectal cancer across 11 countries, indicating that geographic variation in exposure to colibactin-producing bacteria may contribute to differences in colorectal cancer burden.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In 11 countries, regions with higher rates of specific DNA damage patterns linked to colibactin-producing bacteria also have higher rates of colorectal cancer, suggesting that differences in exposure to these bacteria may help explain why cancer rates vary by location.
See the scientific wording
The prevalence of colibactin-induced mutational signatures SBS88 and ID18 correlates with higher age-standardized incidence rates of colorectal cancer across 11 countries, suggesting that geographic variation in exposure to colibactin-producing bacteria may contribute to differences in cancer burden.
What the research says
1 studyStudy: Geographic and age variations in mutational processes in colorectal cancer
Scientists found that a type of DNA damage caused by certain gut bacteria is more common in countries where more people get colorectal cancer, suggesting these bacteria might help explain why some places have more cases than others.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
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