Hubei Integrated Traditional Chinese and Western Medicine Hospital

Wuhan, China

Hubei Integrated Traditional Chinese and Western Medicine Hospital

Wuhan, China
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Zhang H.-M.,Hubei Integrated Traditional Chinese and Western Medicine Hospital | Wang X.,Wuhan Polytechnic University | Wu Z.-H.,Hubei Integrated Traditional Chinese and Western Medicine Hospital | Liu H.-L.,Hubei Integrated Traditional Chinese and Western Medicine Hospital | And 4 more authors.
Molecular Medicine Reports | Year: 2016

Farnesoid X receptor (FXR) is an important regulator of glucose and lipid homeostasis. However, the exact role of FXR in diabetes remains to be fully elucidated. The present study examined the effects of chenodeoxycholic acid (CDCA), an agonist of FXR, on metabolism profile in a rat model of type 2 diabetes mellitus (T2DM). Male Wistar rats (8-week-old; n=40) were randomized into the following four groups (n=10): Untreated control, CDCA-treated, T2DM, and CDCA-treated T2DM. To establish the T2DM model, the rats were fed a high-fat diet (HFD) for 4 weeks and received a single low-dose intraperitoneal injection of streptozotocin (30 mg/kg), followed by an additional 4 weeks of HFD feeding. CDCA was administrated (10 mg/kg/d) intraperitoneally for 10 days. Reverse transcription-quantitative polymerase chain reaction and western blotting assays were performed to determine the RNA and protein expression of FXR, phosphoenolpyruvate carboxykinase, G6Pase, proliferator-activated receptor-γ coactivator-1 and short heterodimer partner in rat liver tissue. The results revealed that FXR activation by CDCA did not reduce body weight, but it lowered the plasma levels of fasting glucose, insulin and triglycerides in the T2DM rats. CDCA administration reversed the downregulation of the mRNA and protein expression of FXR in the T2DM rat liver tissue samples. Furthermore, treatment with CDCA reduced the mRNA and protein expression levels of phosphoenolpyruvate carboxykinase, glucose 6-phosphatase and peroxisome proliferator-activated receptor-γ coactivator-1 in the liver tissue samples of the T2DM rats. By contrast, CDCA treatment increased the mRNA and protein expression levels of short heterodimer partner in the liver tissue samples of the T2DM rats. In conclusion, FXR agonist treatment induces beneficial effects on metabolism in the rat T2DM model. In conclusion, the present study indicated that the FXR agonist may be useful for the treatment of T2DM and hypertriglyceridemia.


PubMed | Huazhong University of Science and Technology, Hubei Integrated Traditional Chinese and Western Medicine Hospital and Wuhan Polytechnic University
Type: Journal Article | Journal: Molecular medicine reports | Year: 2016

Farnesoid X receptor (FXR) is an important regulator of glucose and lipid homeostasis. However, the exact role of FXR in diabetes remains to be fully elucidated. The present study examined the effects of chenodeoxycholic acid (CDCA), an agonist of FXR, on metabolism profile in a rat model of type 2 diabetes mellitus (T2DM). Male Wistar rats (8weekold; n=40) were randomized into the following four groups (n=10): Untreated control, CDCAtreated, T2DM, and CDCAtreated T2DM. To establish the T2DM model, the rats were fed a highfat diet (HFD) for 4 weeks and received a single lowdose intraperitoneal injection of streptozotocin (30 mg/kg), followed by an additional 4 weeks of HFD feeding. CDCA was administrated (10 mg/kg/d) intraperitoneally for 10 days. Reverse transcriptionquantitative polymerase chain reaction and western blotting assays were performed to determine the RNA and protein expression of FXR, phosphoenolpyruvate carboxykinase, G6Pase, proliferatoractivated receptor coactivator1 and short heterodimer partner in rat liver tissue. The results revealed that FXR activation by CDCA did not reduce body weight, but it lowered the plasma levels of fasting glucose, insulin and triglycerides in the T2DM rats. CDCA administration reversed the downregulation of the mRNA and protein expression of FXR in the T2DM rat liver tissue samples. Furthermore, treatment with CDCA reduced the mRNA and protein expression levels of phosphoenolpyruvate carboxykinase, glucose 6phosphatase and peroxisome proliferatoractivated receptor coactivator1 in the liver tissue samples of the T2DM rats. By contrast, CDCA treatment increased the mRNA and protein expression levels of short heterodimer partner in the liver tissue samples of the T2DM rats. In conclusion, FXR agonist treatment induces beneficial effects on metabolism in the rat T2DM model. In conclusion, the present study indicated that the FXR agonist may be useful for the treatment of T2DM and hypertriglyceridemia.

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