Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

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Holloway, A.C. et al.

Alison C. Holloway, Bart P. Hettinga, Hertzel C. Gerstein,

Effect of combining rosiglitazone with either metformin or insulin on β-cell mass and function in an animal model of Type 2 diabetes characterized by reduced β-cell mass at birth.

BACKGROUND: Interventions that preserve or increase β-cell mass may also prevent Type 2 diabetes. Rosiglitazone alone, as well as in combination with metformin, prevents diabetes in people with high, yet non-diabetic glucose levels. These effects may be mediated through changes in β-cell mass. In the present study, the effect of combining rosiglitazone with metformin and/or insulin on β-cell mass and glucose levels was examined in a rat model of Type 2 diabetes. METHODS: Diabetes-prone pups were randomized to receive rosiglitazone alone or in combination with metformin and/or insulin starting at 4 weeks of age. β-Cell mass and glucose homeostasis were examined in adulthood. RESULTS: Rosiglitazone treatment reduced insulin resistance and partially restored β-cell mass in animals with reduced β-cell mass at birth. The addition of metformin to rosiglitazone decreased insulin resistance and reduced weight gain, but had no additional effect on β-cell mass. Conversely, the addition of insulin had no additional effect on these outcomes. Although the combination of rosiglitazone and metformin did not affect β-cell mass at 26 weeks of age, it did result in reduced body weight and insulin resistance. CONCLUSION: The results of the present study suggest that the addition of metformin to rosiglitazone improves the metabolic profile through an effect on insulin resistance and not β-cell mass.[1]

References

Effect of combining rosiglitazone with either metformin or insulin on β-cell mass and function in an animal model of Type 2 diabetes characterized by reduced β-cell mass at birth. Holloway, A.C., Hettinga, B.P., Gerstein, H.C. J. Diabetes (2011) [Pubmed]

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