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Flowchart of microarray analysis. Two hundred twenty-six autophagy-related genes in Human Autophagy Database (HADb; http://autophagy.lu/) were analyzed using microarray data (compared 4 H. pylori positive and 4 H. pylori negative). Differences in autophagy-related genes expression were considered significant if the fold change of expression levels was >1.5 and the p value was <0.01.
