PMID- 22968324 OWN - NLM STAT- MEDLINE DCOM- 20130916 LR - 20180813 IS - 1720-8319 (Electronic) IS - 1594-0667 (Linking) VI - 24 IP - 6 DP - 2012 Dec TI - Vitamin D status and oxidative stress markers in the elderly with impaired fasting glucose and type 2 diabetes mellitus. PG - 595-602 LID - 10.3275/8591 [doi] AB - BACKGROUND AND AIMS: Vitamin D deficiency has been identified in the elderly as a potential risk factor for cardiovascular disease development, possibly through its association with other risk factors, such as type 2 diabetes mellitus (T2DM), hypercholesterolemia and hypertension. The aim of this cross-sectional study was to evaluate the vitamin D status in elderly subjects with impaired fasting glucose (IFG) or T2DM, and to examine its relationships to systemic oxidative stress and biochemical markers of endothelial dysfunction. METHODS: Serum 25-hydroxyvitamin D [25(OH)D], fasting glucose, insulin, lipid profile, advanced glycation end products (AGEs), advanced oxidation protein products (AOPPs), low-density lipoprotein susceptibility to oxidation (oxLDL) and nitric oxide metabolic pathway products (NOx) were analyzed in elderly subjects with IFG (n=30) and T2DM (n=35) compared with aged-matched controls (n=25). RESULTS: 25(OH)D levels in the IFG and T2DM groups were significantly lower than in controls (31.9+/-1.9 and 28.5+/-1.9 vs 39.4+/-2.4 ng/mL, p<0.001), and associated with significantly (p<0.001) higher levels of the oxidative stress parameters AGEs, AOPPs, oxLDL and NOx. Hypovitaminosis D [25(OH)D)<30 ng/ml] markedly enhanced the oxidative stress and cardiovascular risk in hyperglycemic subjects compared with sufficient vitamin D [25(OH)D)>/=30 ng/mL] status subjects. In subjects with IFG and T2DM (n=65), the vitamin D status was significantly inversely correlated both with oxLDL (r=-0.413, p=0.001) and AOPPs (r=-0.475, p<0.001), and strongly positively associated with highdensity lipoprotein cholesterol (r=0.609, p<0.001). CONCLUSIONS: In the elderly with impaired glucose metabolism the vitamin D status is inversely associated with levels of circulating markers of oxidative stress and endothelial dysfunction, especially in subjects with hypovitaminosis D. FAU - Gradinaru, Daniela AU - Gradinaru D AD - Ana Aslan National Institute of Gerontology and Geriatrics, Bucharest, Romania. danielagrdnr@yahoo.com FAU - Borsa, Claudia AU - Borsa C FAU - Ionescu, Cristina AU - Ionescu C FAU - Margina, Denisa AU - Margina D FAU - Prada, Gabriel I AU - Prada GI FAU - Jansen, Eugene AU - Jansen E LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120910 PL - Germany TA - Aging Clin Exp Res JT - Aging clinical and experimental research JID - 101132995 RN - 0 (Biomarkers) RN - 0 (Blood Glucose) RN - 0 (Lipids) RN - 1406-16-2 (Vitamin D) RN - A288AR3C9H (25-hydroxyvitamin D) SB - IM MH - Aged MH - Aging/blood MH - Biomarkers/blood MH - Blood Glucose/metabolism MH - Cardiovascular Diseases/etiology MH - Case-Control Studies MH - Cross-Sectional Studies MH - Diabetes Mellitus, Type 2/*blood/etiology MH - Fasting/blood MH - Female MH - Glucose Metabolism Disorders/*blood/etiology MH - Humans MH - Lipids/blood MH - Male MH - Oxidative Stress MH - Risk Factors MH - Vitamin D/*analogs & derivatives/blood MH - Vitamin D Deficiency/blood/complications EDAT- 2012/09/13 06:00 MHDA- 2013/09/17 06:00 CRDT- 2012/09/13 06:00 PHST- 2012/09/13 06:00 [entrez] PHST- 2012/09/13 06:00 [pubmed] PHST- 2013/09/17 06:00 [medline] AID - 8591 [pii] AID - 10.3275/8591 [doi] PST - ppublish SO - Aging Clin Exp Res. 2012 Dec;24(6):595-602. doi: 10.3275/8591. Epub 2012 Sep 10.