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Diabetes in rat pregnancy alters renal calcium and magnesium reabsorption and bone formation in adult offspring

Bond, Helen, Hamilton, K., Balment, Richard J., Denton, John, Freemont, Anthony J., Garland, H.O., Glazier, J.D. and Sibley, Colin P. (2005) Diabetes in rat pregnancy alters renal calcium and magnesium reabsorption and bone formation in adult offspring. Diabetologia, 48 (7). pp. 1393-1400. ISSN 0012186X

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Aims/hypothesis We tested the hypothesis that diabetes in pregnancy can result in the in-utero reprogramming of renal calcium and magnesium handling and of bone formation in the offspring, which persists into adulthood.
Methods Male offspring of streptozotocin-treated diabetic rats (OD rats) and of control non-diabetic animals (OC rats) were investigated as neonates and at 8, 12 and 16 weeks of age.
Results Compared with OC rats, urinary calcium and magnesium output was significantly reduced in OD rats at every age studied; Na+ and K+ outputs were unaffected. The renal expression of proteins involved in the tubular reabsorption of calcium (calcium ATPase, calbindin-D28k and epithelial calcium channel) was increased in OD animals compared with that in OC animals. Additionally, we observed that adult OD rats had lower trabecular and higher cortical femoral bone volumes, explained by deposition of bone on the endosteal surface.
Conclusions/interpretation These data show that diabetes in pregnancy has profound effects on male offspring in terms of renal tubular calcium and magnesium reabsorption and the normal pattern of bone formation. These effects persist into adulthood. Such long-lasting effects of diabetes on kidney and the skeleton were not suspected and could have important implications for the health of children born to diabetic women.

Item Type: Article
Subjects: Q Science > QH Natural history > QH301 Biology
Schools: School of Applied Sciences
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Depositing User: Graham Stone
Date Deposited: 01 Jul 2009 15:11
Last Modified: 28 Aug 2021 22:54


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