Low serum osteoprotegerin levels in normoalbuminuric type 1 diabetes mellitus

D.K. Singh, P. Winocour, B. Summerhayes, A. Viljoen, G. Sivakumar, Ken Farrington

    Research output: Contribution to journalArticlepeer-review

    23 Citations (Scopus)

    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.
    Original languageEnglish
    Pages (from-to)105-110
    JournalActa Diabetologica
    Volume47
    Issue numberSupp 1
    DOIs
    Publication statusPublished - 2010

    Keywords

    • type 1 diabetes
    • osteoprotegerin
    • RANKL
    • 1,25-dihydroxyvitamin D
    • magnesium

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