Therapy of empagliflozin plus metformin on T2DM mice shows no higher amelioration for glucose and lipid metabolism than empagliflozin monotherapy
Abstract
AIMS
This study was designed to compare the effects of empagliflozin monotherapy and its combination with metformin on glucose and lipid modulations in T2DM mice.
MAIN METHODS
Nine-week-old male C57BLKS/J db/db mice (n = 32) were used as T2DM model, and their age-matched C57BLKS/J db/m mice (n = 8) were used as normal control. A total of 32 db/db mice were randomly divided into four groups (n = 8/group): the DMT1 group, treated with metformin (250 mg/kg/day); the DMT2 group, treated with metformin (250 mg/kg/day) plus empagliflozin (10 mg/kg/day); the DMT3 group, treated with empagliflozin (10 mg/kg/day); the T2DM control group (DM), received 0.5% Natrosol. The db/m mice received same administration as DM group.
KEY FINDINGS
After four-week treatments, compared with T2DM control (DM), the empagliflozin or its combination with metformin dramatically increased the levels of plasma HDL-C (139.6% and 154.9%, respectively), with significant decrease in plasma TC (22.9% and 13.7%, respectively) and plasma TG (26% and 19.7%, respectively) and in hepatic TG (30.3% and 28.6%, respectively). The protein expressions of SREBP1c (75.3% and 54.0%, respectively) and APOC-III (51.2% and 50.2%, respectively) were reduced, while CPT1A (304.0% and 221.4%, respectively) and ApoA1 levels (90.0% and 85.3%, respectively) were enhanced. Although both interventions improve above-mentioned lipid homeostasis, there were no statistic differences between two groups (p > 0.05).
SIGNIFICANCE
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