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J Clin Endocrinol Metab. 2008 Apr;93(4):1345-50. doi: 10.1210/jc.2007-2000. Epub 2008 Jan 15.

Post-meal glucose peaks at home associate with carotid intima-media thickness in type 2 diabetes.

Author information

1
Chair and Division of Metabolic Diseases, Second University of Naples, Piazza L. Miraglia, 80138 Napoli, Italy.

Abstract

CONTEXT:

Two-hour postprandial hyperglycemia is related to chronic complications of diabetes and is currently used in the international guidelines to drive the therapy.

OBJECTIVE:

Our objective was to assess the size and timing of post-meal glucose peaks in the everyday life of type 2 diabetic patients and the relationship with carotid atherosclerosis.

DESIGN, SETTING, AND PATIENTS:

This was an observational study performed in 644 outpatients with type 2 diabetes attending diabetes clinics located in the area of the Campania County, South Italy, who provided complete home blood glucose profiles and centralized carotid intima-media thickness (CIMT) assessment. The study was conducted from 2001-2005.

MAIN OUTCOME MEASURES:

Incremental glucose peak (IGP) was the maximal incremental increase in blood glucose obtained at any point after the meal. CIMT was assessed by carotid sonography.

RESULTS:

The level of glycosylated hemoglobin and CIMT progressively increased across quintiles of IGP (P for trend = 0.01 for both). In univariate analysis, all examined glycemic parameters were significantly correlated with CIMT. IGP (r = 0.40; P = 0.006) showed the strongest correlation with CIMT, which remained significant in multiple linear regression analysis (R(2) = 0.26; P = 0.01). IGP was associated with a significant increase of CIMT in tertiles of glycosylated hemoglobin. IGP occurred within 1 h from the start of the meal in 95% of the entire diabetic population.

CONCLUSION:

IGPs are frequent in the everyday life of patients with type 2 diabetes, occur for most (95%) within 1 h after meal, timing of IGPs is not influenced by treatment (diet or drugs), and IGPs correlate with CIMT.

PMID:
18198229
DOI:
10.1210/jc.2007-2000
[Indexed for MEDLINE]

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