INS and polycystic ovary syndrome: Interestingly, it was also found that compared to ABX group, the blood glucose level of mice in ABX_LET group increased significantly at 90 min and the area under the IPGTT curve showed a significant difference (Figures 2D, E), and a significant increase in fasting insulin level was observed in ABX_LET group compared to ABX group(Figure 2F), which suggested other factors that affected the glucose metabolism of PCOS mice.