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  • Title: [Bone mass, bone metabolism, and prevalence of spinal fractures in recipients of allogenic bone marrow transplantation for leukemia].
    Author: Letizia C, Celi M, Iori AP, Verrelli C, Caliumi C, Diacinti D, Arcese W, D'Erasmo E.
    Journal: Ann Ital Med Int; 2004; 19(3):175-83. PubMed ID: 15529945.
    Abstract:
    The aim of this study was to evaluate in 65 patients, who had previously undergone allogenic bone marrow transplantation (ABMT), the bone mineral density (BMD), the skeletal turnover and the prevalence of vertebral fractures. At the moment of recruiting, 10 of 65 transplanted subjects (15.3%) presented with signs of rejection of the transplanted tissue, thus they were excluded. The remaining 55 patients (21 males, 34 females, mean age 30.8 +/- 6.4 years), with a follow-up of 60 +/- 9 months after the transplant and without any treatment inducing osteopenia, underwent ABMT respectively for: chronic myeloid leukemia (n = 24); acute myeloid leukemia (n = 18); acute lymphatic leukemia (n = 13). One hundred and ten healthy control subjects (42 males and 68 females, mean age 31.0 +/- 3.7 years) matching with the patients for age, weight and height, were successively enrolled. All the participants were submitted to a densitometric evaluation (DEXA) of lumbar spine (L1-L4), of femoral neck and total femur; besides some skeletal metabolism parameters were dosed, such as: total alkaline phosphatase, bone alkaline phosphatase and urinary excretion of C-terminal telopeptide fragments normalized to creatinine. On the contrary, the morphometric evaluation, performed through a lateral dorsolumbar radiography, was actually carried out only in patients who had already undergone ABMT. The L1-L4 BMD study showed: 10/55 osteoporotic (18.1%), 19/55 osteopenic (34.5%) and 26/55 normal patients (47.4%). In transplanted patients BMD values, obtained at the three considered sites, resulted significantly reduced (p < 0.01) in comparison to controls. Moreover, in patients who underwent ABMT, a statistically significant increase was observed, in comparison to healthy subjects, in total alkaline phosphatase (p < 0.01), in bone alkaline phosphatase (p < 0.01) and in urinary excretion of C-terminal telopeptide fragments normalized to creatinine levels (p < 0.001). Seven of the 55 transplanted patients (12.7%) presented at the moment of Rx morphometric evaluation at least one vertebral fracture: 6 of whom were affected by osteoporosis and 1 by osteopenia. In conclusion, the subjects who had previously undergone ABMT maintain, even at a certain time after the transplant and without any rejection, an increased skeletal turnover and BMD values meanly lower than normal, leading to an increased risk for vertebral fracture.
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