These findings indicate that the ameliorative effects of QG on HLP may be associated with the correction of gut microbiota dysbiosis, the modulation of lipid metabolites, and the regulation of cholesterol metabolism.
Key Findings
Results
Qige decoction (QG) significantly improved dyslipidemia and pathological changes in high-fat, high-cholesterol diet-induced hyperlipidemic rats.
Hyperlipidemia was induced with a high-fat, high-cholesterol diet (HFHCD) in rats.
Over 20 days of HFHCD feeding, rats received daily oral QG (5 g·kg-1·d-1).
Outcomes were assessed with serum biochemical indices and histopathological evaluations.
Results
QG showed intervention effects superior to those of Huangqi-Gegen decoction (HG) and Chenpi decoction (CP) in hyperlipidemic rats.
Comparators were HG (4.5 g·kg-1·d-1) and CP (0.5 g·kg-1·d-1), with atorvastatin calcium (ATO, 5 mg·kg-1·d-1) as a positive control.
The abstract states that QG's effects were superior to HG and CP; no specific numeric comparisons are given in the abstract.
Results
Hyperlipidemic rats showed severe gut microbiota dysfunction, which QG partially reversed.
Fecal microbiota were analyzed by 16S rRNA sequencing.
QG supplementation restored the abundance of gut microbiota and partially reversed the dysbiosis.
Results
QG increased the abundance of several beneficial bacterial genera.
Increased genera included Intestinimonas, Ruminococcaceae_UCG-005, Flavobacterium, Turicibacter, and Phocea.
Results
QG decreased the abundance of several bacterial genera considered harmful.
Decreased genera included Collinsella, Allisonella, [Eubacterium]_hallii_group, Staphylococcus, and Escherichia-Shigella.
Results
Hyperlipidemic rats had liver lipid metabolite disorders, which QG partially reversed, including reduced levels of 37 triglyceride metabolites.
Liver lipidomics analysis was used.
The 37 triglyceride metabolites reduced by QG were primarily associated with cholesterol metabolism in terms of biological function.
Results
QG downregulated intestinal NPC1L1 and upregulated ABCG5/8 in liver and small intestine, regulating cholesterol metabolism.
Western blot showed decreased Niemann-Pick C1-Like 1 (NPC1L1) protein in the small intestine.
Western blot showed increased ABCG5/8 protein in both the liver and small intestine.
What This Means
This study tested a traditional Chinese herbal formula called Qige decoction in rats made hyperlipidemic (high blood fats) with a high-fat, high-cholesterol diet. Over 20 days, the rats were given Qige, two other herbal formulas (Huangqi-Gegen and Chenpi), or the cholesterol drug atorvastatin. Qige improved blood lipid levels and tissue changes caused by the diet, and in this study it worked better than the other two herbal formulas.
The researchers also looked at possible reasons. Qige shifted the gut bacteria back toward a healthier balance, raising some beneficial bacteria and lowering others considered harmful. It also lowered 37 types of triglyceride-related fats in the liver. In addition, it reduced a protein that helps absorb cholesterol in the intestine (NPC1L1) and increased proteins that help remove cholesterol (ABCG5/8) in the liver and small intestine.
This research suggests that Qige may help manage high blood fats through gut bacteria, liver fat metabolism, and cholesterol handling. However, the work was done in rats over a short period, and the abstract gives no data on safety or on effects in people, so it is an early step and does not show that the formula would work in humans.
Zunming Z, Meiao T, Xiaoqing Y, Xuehong K, Keer H. (2026). Qige decoction ameliorates hyperlipidemia in rats by modulating the intestinal microbiota and liver metabolism.. Journal of traditional Chinese medicine = Chung i tsa chih ying wen pan. https://doi.org/10.19852/j.cnki.jtcm.2026.05.009