Fig. 3

Effect of bacteria on CaOx aggregation. Crystal aggregation assay was performed without (control) or with 1 × 103 CFU/ml of L. acidophilus or E. coli. A Representative images of CaOx aggregates (marked with dotted circles) that were generated under different conditions. B The aggregate number was counted from ≥ 15 random fields in each sample. Quantitative data were obtained from three independent experiments using independent biological replicates. The error bar represents SD, and only significant P values are indicated