Cited by 211Antioxidant Activity and Oxidative StressAdvanced Glycation End Products researchNitric Oxide and Endothelin Effects

Meal-Generated Oxidative Stress in Type 2 Diabetic Patients

Ceriello, Antonio, Bortolotti, Nadia, Motz, Enrico, Crescentini, Adriana, Lizzio, Sebastiano, Russo, Assunta, Tonutti, Laura, Taboga, Claudio·1998·Diabetes Care

Abstract

OBJECTIVE: Free radical production has been reported to be increased in diabetic patients and to be involved in the pathogenesis of diabetic complications. In this study, a standardized meal was administered to 10 type 2 diabetic patients and 10 healthy matched normal subjects to evaluate its effects on plasma oxidative stress generation. RESEARCH DESIGN AND METHODS: In diabetic patients, at baseline and after the meal, plasma malondialdehyde (MDA), vitamin C, protein SH groups, uric acid, vitamin E, and total plasma radical-trapping parameter, which evaluates plasma antioxidant capacity due to known and unknown antioxidants present in the plasma as well as their mutual cooperation, were measured. RESULTS: After the meal, plasma MDA and vitamin C increased, while protein SH groups, uric acid, vitamin E, and total plasma radical-trapping parameter decreased more significantly in the diabetic subjects than in control subjects. CONCLUSIONS: This finding shows that in the absorptive phase, free radicals are produced in diabetic patients. Since plasma glucose, but not insulin, rose significantly more in diabetic subjects than in control subjects, hyperglycemia may play an important role in the generation of postprandial oxidative stress in diabetic patients.

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Crossref · 10.2337/diacare.21.9.1529

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Authors
Ceriello, A., Bortolotti, N., Motz, E., Crescentini, A., Lizzio, S., Russo, A., Tonutti, L., & Taboga, C.
Affiliations
  • University of Udine (IT)
  • Diabetology Unit, Udine General Hospital Udine, Italy
Venue
Diabetes Care
Published
1998-09-01
Volume
21
Issue
9
Pages
1529-1533
ISSN
  • 0149-5992 (ISSN-L)
  • 1935-5548
OpenAlex
W2052825417
Cited by
211
References
0
Citations by year
2026: 1 · 2025: 1 · 2024: 4 · 2023: 2 · 2022: 4 · 2021: 3 · 2020: 3 · 2019: 2 · 2018: 6 · 2017: 4 · 2016: 2 · 2015: 6 · 2014: 6 · 2013: 8 · 2012: 14
FWCI
3.32
Type
journal article
Language
en
Open access
closed
Locations
  • Diabetes Care (publishedVersion)
  • PubMed (publishedVersion)
  • Institutional Research Information System (University of Udine) (submittedVersion)
Topics
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Advanced Glycation End Products research
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
Keywords
type 2 diabetes, oxidative stress, postprandial oxidative stress, free radicals, malondialdehyde, vitamin C, vitamin E, uric acid, protein thiol groups, antioxidant capacity, hyperglycemia, plasma glucose, insulin
MeSH terms
Analysis of Variance, Antioxidants, Ascorbic Acid, Blood Glucose, Diabetes Mellitus, Type 2, Fatty Acids, Nonesterified, Female, Free Radicals, Humans, Male, Malondialdehyde, Middle Aged, Uric Acid, Vitamin E, Oxidative Stress, Postprandial Period

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