Title:Berberine Regulates the Metabolism of Uric Acid and Modulates Intestinal
Flora in Hyperuricemia Rats Model
Volume: 26
Issue: 11
Author(s): Qingqing Chen, Dong Li, Feiya Wu, Xue He, Yifan Zhou, Chao Sun, Haoyun Wang*Yujun Liu*
Affiliation:
- Department of Chinese Medicine, Tianning Street Hospital of Changzhou, Changzhou, Jiangsu, 213003, China
- Department of Rheumatology, Putuo Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
Keywords:
Berberine, hyperuricemia, uric acid, urate transports, gut microbiota, intentinal flora.
Abstract:
Background: Intestinal microbiota is the primary target for the multifunctional nature of
berberine. Berberine can reverse the structure and composition of gut microbiota under pathological
conditions. This study aimed to investigate the effects of berberine on uric acid (UA) metabolism
and gut microbiota in a hyperuricemia rat model established using potassium oxonate.
Methods: Sprague-Dawley (SD) male rats were divided into a normal control group (n= 10), a
hyperuricemia group (n = 12) and a berberine-treated group (n = 11). The UA level in serum, urine
and fecal, blood xanthine oxidase (XOD), and urate transports ABCG2 and Galectin-9 in the liver
and colon, were evaluated using ELISA kits. The alterations in gut microbiota were investigated
using 16S rRNA sequencing.
Results: The UA level in the hyperuricemia group was significantly elevated (p<0.001), suggesting
that the model was successfully established. After treatment with berberine, levels of blood and
fecal UA significantly decreased (p<0.001), but not uric UA. The blood XOD level decreased,
urate transport ABCG2 in the colon increased, and urate transport Galectin-9 in the colon decreased
after berberine treatment (p<0.05). Further 16S sequencing revealed that berberine affected
the gut microbiota composition and diversity in hyperuricemia rats. Berberine treatment reduced
the relative abundance of Bacteroidetes, and increased the relative abundance of Lactobacillus. The
gut microbiota were predicted to be involved in multiple metabolic pathways, such as sphingolipid
metabolism, starch and sucrose metabolism and N-glycans.
Conclusion: Berberine might be a possible therapeutic candidate in hyperuricemia, which could regulate
UA metabolism by affecting XOD, and urate transports and partly by regulating gut microbiota.