(A, B) The observed species number of intestinal bacteria in control (A) and miR-34a-5p antagomir treated (B) mice was examined by 16S high throughput sequencing after irradiation at days 3 and 6, n = 5 per group. Statistically significant differences are indicated: Wilcoxon rank sum test. (C, D) The Shannon diversity index of intestinal bacteria in control (C) and miR-34a-5p antagomir treated (D) mice was examined by 16S high throughput sequencing after irradiation at days 3 and 6, n = 5 per group. Statistically significant differences are indicated: Wilcoxon rank sum test. (E, F) The relative abundances of the top 10 bacteria at the genus level in control (E) and miR-34a-5p antagomir treated (F) mice were assessed using 16S high throughput sequencing after radiation at days 3 and 6, n = 5.