Figure 3

Evaluation of the effects of antibiotics on stool biomarkers ( A ) miR-221 and ( B ) miR-18a. Patients who took antibiotics within 30 days of specimen collection (n=26) were compared with patients without any antibiotic intake (n=162). miRNA levels were expressed in number of copies per nanogram of extracted RNA. Open circles represent samples with an undetectable miRNA level. The lines denote the medians.