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- Title
Low serum osteoprotegerin levels in normoalbuminuric type 1 diabetes mellitus.
- Authors
Singh, Dhruv K.; Winocour, Peter; Summerhayes, Bev; Viljoen, Adie; Sivakumar, G.; Farrington, Ken
- Abstract
The aim of this study is to establish whether abnormal mineral metabolism is present in patients with type 1 DM with normal renal function and in the absence of microalbuminuria. Serum levels of 1,25-dihydroxyvitamin D, osteoprotegerin (OPG) and receptor activator for nuclear factor kappa β ligand (RANKL) and other determinants of bone metabolism were measured in 35 patients with type 1 DM and in 25 age-, sex- and ethnicity-matched healthy controls. Serum OPG (1.98 vs. 2.98 pmol/l: P = 0.001), 1,25-dihydroxyvitamin D (41.1 vs. 48.2 pmol/l: P = 0.035) and magnesium (0.84 vs. 0.89 mmol/l P = 0.029) levels were significantly lower in patients with type 1 DM compared to normal controls. RANKL levels were similar in both groups. The groups did not differ with respect to calcium, phosphate, PTH, 25-hydroxyvitamin D, tubular reabsorption of phosphate and cross-linked N-telopeptides of type 1-collagen levels. Abnormalities of mineral metabolism including low serum OPG and 1,25-dihydroxyvitamin D levels occur in patients with type 1 DM with normal renal function and in the absence of microalbuminuria. These abnormalities may promote altered bone metabolism and vascular pathology.
- Subjects
MINERAL metabolism disorders; DIABETES complications; ARTERIAL calcification; VITAMIN D in the body; URINARY organ examination; DISEASE risk factors
- Publication
Acta Diabetologica, 2010, Vol 47, p105
- ISSN
0940-5429
- Publication type
Article
- DOI
10.1007/s00592-009-0146-z