Evidence for a toxic effect of aluminum on osteoblasts: a histomorphometric study in hemodialysis patients with aplastic bone disease

Journal of Bone and Mineral Research : the Official Journal of the American Society for Bone and Mineral Research
M ParisienP J Meunier

Abstract

To evaluate the potential role of aluminum (Al) in a subset of dialysis patients with aplastic bone disease, we have studied tetracycline-labeled bone biopsies of 32 patients (22 males and 10 females, 45-73 years) on maintenance hemodialysis. Selection criteria included normal resorption surfaces (RS) and osteoid thickness. Eleven patients (Group I) had no stainable bone Al (Al-; 61.7 +/- 7.2 years) and 21 (Group II) had stainable bone Al (Al+; 57.7 +/- 6.8 years). Serum Al was normal to slightly elevated in Group I, but significantly higher in Group II (p less than 0.01). Al surfaces (AlS), undetectable in Group I, were 67.8 +/- 17.9% in Group II. Bone Al content (BAC) was much lower in Group I than in Group II (14.8 +/- 3.7 vs. 113.8 +/- 100.2 micrograms/g, p less than 0.01), but higher in Group I than in controls (p less than 0.05). Extensive thin osteoid seams were present in Group II. AlS was correlated with OS (r = 0.56, p less than 0.001) and OV (r = 0.48, p less than 0.01). Labeled surfaces were decreased in both groups. Labeled osteoid surfaces (TLS/OS) were below 2 SD of the mean control values in 96% of patients and calcification rate (CR) was depressed below 0.20 micros/day in 44% of patients. Bone formation rate (B...Continue Reading

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Citations

Dec 1, 1995·Journal of Bone and Mineral Research : the Official Journal of the American Society for Bone and Mineral Research·D A BushinskyR Levi-Setti
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