Study on the Effect of Huanglian Jiedu Decoction on the Composition of Gut Microflora in SD Rats Based on 16S rRNA Sequencing.

OBJECTIVE

To study the effects of Huanglian Jiedu Decoction (HJD) on gut microflora of SD rats.

METHOD

After 3 days of adaptive feeding, 36 rats were randomly divided into 4 groups, namely, the normal control group (NC, 10 mL/kg, distilled water), high_HJD dose group (H_HJD, 6.25 g/kg, weight ratio between crude drug and rat), medium_HJD dose group (M_HJD, 3.125 g/kg), and low_HJD dose group (L_HJD, 1.56 g/kg), and each group consisted of 9 mice. The HJD groups were then treated with orally administered HJD for 21 days, while the NC group was treated with distilled water. After 7 days, 14 days, and 21 days of the experiment and after 12 hours of fasting and water deprivation, 3 SD rats in each group were randomly sacrificed by cervical dislocation and sterile operation to collect stool faces. Sample DNA was extracted by Fecal total DNA extraction kit, sequenced using Illumina MiSeq platform, and analyzed.

RESULTS

The abundance of , , , and decreased, while that of , , , , , , , , and increased after using H_HJD. The abundance of , , and decreased, while that of , , Escherichia_Shigella, , , , , and increased after using M_HJD. The abundance of , , , and decreased, while that of Escherichia_Shigella, , , , , , , , , , and increased after using L_HJD.

CONCLUSION

HJD can regulate gut microbiota, and its effect varies with different dosage and duration of medication.