Diabetes Care, Vol 22, Issue 7 1171-1175, Copyright © 1999 by American Diabetes Association

ARTICLES

Effect of hyperketonemia on plasma lipid peroxidation levels in diabetic patients

SK Jain, R McVie, R Jackson, SN Levine and G Lim
Department of Pediatrics, Louisiana State University Medical Center, Shreveport, USA.

OBJECTIVE: This study was undertaken to examine the effect of ketosis on plasma lipid peroxidation levels in diabetic patients. RESEARCH DESIGN AND METHODS: Plasma levels of lipid peroxidation products (malondialdehyde) and ketone bodies (acetoacetate and beta-hydroxybutyrate) were determined in diabetic patients (n = 70) and age-matched normal volunteers (n = 25). Diabetic patients with total ketone body levels > 1.0 mmol/l were considered hyperketonemic, and those with levels < or = 1.0 mmol/l were considered normoketonemic. RESULTS: After normalization versus total lipids, levels of lipid peroxidation were significantly higher in the plasma of hyperketonemic diabetic patients (P < 0.05), but not in normoketonemic diabetic patients, compared with age-matched normal volunteers. In addition, low ketonemia was associated with lower lipid peroxidation levels when lipid peroxidation and ketonemia were determined in the same patient (n = 7) at two different clinic visits. CONCLUSIONS: This study demonstrated an association between hyperketonemia and increased lipid peroxidation levels in diabetic patients, which suggests that ketosis is a risk factor in the elevated lipid peroxidation levels associated with diabetes. Further investigation is needed to determine whether antioxidant supplementation can be particularly beneficial in reducing lipid peroxidation and complications in type 1 diabetic patients who frequently encounter ketosis.
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