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Original Article Increased Plasma Dipeptidyl Peptidase IV Activities in ob/ob Mice.
Sang Dal Rhee, Young Sil Lee, Hye Sung Lee, Won Hoon Jung, Hyae Gyeong Cheon, Jin Hee Ahn, Sung Su Kim, Sang Gi Paik, Sung Don Yang
Diabetes & Metabolism Journal 2005;29(1):22-29
DOI: https://doi.org/
Published online: January 1, 2005
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1Medicinal Science Division, Korea Research Institute of Chemical Technology, Daejon, Korea.
2Department of Biology, Chungnam National University, Daejon, Korea.

BACKGROUND
Dipeptidyl peptidase IV (DPP IV/CD26), a multi-functional glycoprotein, cleaves and inactivates major insulinotropic hormones, such as glucagon-like protein (GLP)-1 and glucose dependent insulinotrophic polypeptide (GIP). METHODS: The plasma DPP IV activities in ob/ob mice were measured at 4, 8 and 13 weeks of age and the correlation between the plasma glucose concentration and DPP IV activity analyzed at 7~9 weeks of age. The glucose lowering effects of P32/98, a DPP IV inhibitor, was assessed with the oral glucose tolerance test. RESULTS: The plasma DPP IV activities in ob/ob mice were higher than those in lean mice. The plasma DPP IV activity was correlated with the plasma glucose concentration both in male and female ob/ob mice. The glucose lowering effect of DPP IV inhibitor was more prominent in ob/ob than in lean mice. CONCLUSION: The plasma DPP IV activities in ob/ob mice were higher than in lean control mice, which may contribute to the higher glucose lowering effect of the DPP IV inhibitor in ob/ob mice

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    Increased Plasma Dipeptidyl Peptidase IV Activities in ob/ob Mice.
    Korean Diabetes J. 2005;29(1):22-29.   Published online January 1, 2005
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Rhee SD, Lee YS, Lee HS, Jung WH, Cheon HG, Ahn JH, Kim SS, Paik SG, Yang SD. Increased Plasma Dipeptidyl Peptidase IV Activities in ob/ob Mice.. Diabetes Metab J. 2005;29(1):22-29.
DOI: https://doi.org/.

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