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Predictive, Diagnostic evidence:
Predictive: The study discusses how the presence of intratumor Gammaproteobacteria can induce resistance to the chemotherapeutic drug gemcitabine, indicating a correlation between the bacterial presence and treatment response. This suggests that the variant's influence on drug metabolism is directly related to the efficacy of gemcitabine therapy in pancreatic ductal adenocarcinoma.
Diagnostic: The study reports that 76% of the tested human pancreatic ductal adenocarcinomas were positive for bacteria, indicating an association between the presence of Gammaproteobacteria and the disease. This suggests that the presence of these bacteria could be used as a biomarker for classifying or confirming the disease in patients.