Abstract:
OBJECTIVE:Blood glucose fluctuations have been found to be relevant to the progression of atherosclerosis in patients with type 2 diabetes and to be more detrimental for the development of atherosclerosis than the sustained hyperglycemia. We aim at evaluating the effect of blunted daily acute glucose fluctuations by DPP-IV inhibitors on intima-media thickness (IMT), a surrogate marker for early atherosclerosis. METHODS:Data from a 12-week prospective, randomized, open-label parallel group trial with a blinded-endopoint study on 90 patients with DMT2, assessing the role of Dipeptidyl Peptidase-4 inhibition in lowering oxidative stress and inflammation by reducing daily acute glucose fluctuations (MAGE), were included in the present analysis. RESULTS:Administration of both sitagliptin and vildagliptin treatment resulted in a significant decline in IMT. Indeed, vs baseline data Vildagliptin vs Sitagliptin resulted in a greater IMT reduction. After 3 months therapy changes in IMT significantly correlated with changes in MAGE but not with change in HbA1c in the whole population. Only change in MAGE and LDL plasma levels resulted to be independent predictors of the reduced carotid intima-media thickness after adjusting for conventional cardiovascular risk factors in patients with type 2 diabetes. Significant correlations between change in MAGE, change in IMT and change in fasting and interprandial inflammation score and nitrotyrosine plasma levels were found. CONCLUSION:Reduction of glucose excursion due to DPP-IV inhibitors administration, may prevent atherosclerosis progression in patients with type 2 diabetes probably through the reduction of daily inflammation and oxidative stress.
journal_name
Atherosclerosisjournal_title
Atherosclerosisauthors
Barbieri M,Rizzo MR,Marfella R,Boccardi V,Esposito A,Pansini A,Paolisso Gdoi
10.1016/j.atherosclerosis.2012.12.018subject
Has Abstractpub_date
2013-04-01 00:00:00pages
349-54issue
2eissn
0021-9150issn
1879-1484pii
S0021-9150(12)00879-9journal_volume
227pub_type
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