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Study of In Vivo Glucose Metabolism in High-fat Diet-fed Mice Using Oral Glucose Tolerance Test OGTT and Insulin Tolerance Test ITT
Published on: January 7, 2018
Comparison of PEGylated FGF-21 with insulin glargine for long-lasting hypoglycaemic effect in db/db mice
1Biopharmaceutical Lab, College of Life Science, Northeast Agricultural University, 150030 Harbin, China.
Aim:
This study investigated the long-acting antidiabetic efficacy of PEGylated fibroblast growth factor (FGF)-21 in type 2 diabetic db/db mice.
Methods:
PEGylated FGF-21 was prepared by modifying the N-terminus of human FGF-21 (hFGF-21) using mPEG-ALD. To compare the long-lasting hypoglycaemic effects of PEGylated FGF-21 and insulin glargine in diabetic db/db mice, their pharmacological efficacy was evaluated by changes in blood glucose levels, body weight, insulin levels, glycosylated haemoglobin levels, lipid profile and liver function parameters, and by oral glucose tolerance tests (OGTTs).
Results:
Both PEGylated FGF-21 and insulin glargine decreased plasma glucose in db/db mice. However, compared with insulin glargine treatment, PEGylated FGF-21 therapy had more significant effects in lowering blood glucose and glycosylated haemoglobin levels, improving lipid profile and liver function parameters, alleviating insulin resistance and reducing the glucose area under the curve in OGTTs.
Conclusion:
Our results suggest that PEGylated FGF-21 is an ideal candidate as a long-acting antidiabetes drug, and holds significant promise as an effective therapeutic agent in the treatment of type 2 diabetes patients.
Insights
PEGylated fibroblast growth factor (FGF)-21 demonstrates superior long-acting antidiabetic effects compared to insulin glargine in mice. This novel FGF-21 therapy shows significant promise for treating type 2 diabetes.
Area of Science:
- Biochemistry
- Pharmacology
- Endocrinology
Background:
- Type 2 diabetes is a metabolic disorder characterized by hyperglycemia and insulin resistance.
- Current treatments for type 2 diabetes often require frequent administration and can have side effects.
Purpose of the Study:
- To evaluate the long-acting antidiabetic efficacy of PEGylated fibroblast growth factor (FGF)-21.
- To compare PEGylated FGF-21 with insulin glargine in a mouse model of type 2 diabetes.
Main Methods:
- PEGylated FGF-21 was synthesized by modifying human FGF-21.
- Pharmacological efficacy was assessed in db/db mice by monitoring blood glucose, body weight, insulin, HbA1c, lipid profile, liver function, and oral glucose tolerance tests (OGTTs).
Main Results:
- Both PEGylated FGF-21 and insulin glargine reduced plasma glucose levels.
- PEGylated FGF-21 exhibited more significant improvements in glycemic control, lipid profile, liver function, and insulin sensitivity compared to insulin glargine.
- PEGylated FGF-21 reduced the glucose area under the curve during OGTTs more effectively than insulin glargine.
Conclusions:
- PEGylated FGF-21 demonstrates potent and sustained antidiabetic effects.
- PEGylated FGF-21 is a promising therapeutic candidate for type 2 diabetes treatment.
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