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Background: The purpose of the current study is to investigate bone mineral deficit of children in survivors of childhood acute leukemia and examine the association of insulin-like growth factor-1 (IGF-1) with bone mineral density (BMD) status and the presence of osteoporosis. Methods: In a cross-sectional study of children diagnosed with different types of acute leukemia at age between 6 months and 18 years, serum IGF-1 and IGFBP-3, were assessed in relation to lumbar spine BMD (LSBMD) by using dual-energy x-ray absorptiometry and non-traumatic vertebral fracture by lateral thoracolumbar spine radiographs. Standard deviation scores (SDS) were calculated based on the age- and gender-adjusted population mean. Results: Among 189 children after completion of acute leukemia treatment, 22 (11.6%) children had LSBMD SDS less than -2.0 while 80 (42.3 %) children were diagnosed with osteoporosis. Mean areal BMD and LSBMD SDS of the subjects were 0.862±0.197 g/cm2 and -0.6±1.6, respectively. IGF-1 and IGFBP-3 were lower in children with LSBMD lower than -2.0 (P&amp;lt;0.05) and those with osteoporosis (P&amp;lt;0.05). LSBMD SDS showed linear correlation with serum IGF-1 (P=0.041). Low serum IGF-1 level (OR=0.724, P=0.042) and elder age of leukemia diagnosis (OR=1.089, P=0.023) were suggested risk factor of the occurrence of osteoporosis. Conclusions: Substantial number of survivors from childhood acute leukemia undergo bone mineral deficits, and serum IGF-1 status could be a prognostic factor associated with bone mass acquisition and future occurrence of osteoporosis.

The Association of Insulin-Like Growth Factor-1 With Bone Mineral Density in Survivors of Childhood Acute Leukemia