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Ann Pediatr Endocrinol Metab > Volume 11(1); 2006 > Article
Serum IGF-I and IGFBP-3 Concentrations in Children with Cancer: Comparisons with Normal Children.
Kyung In Han, A Rum Hwang, So Hyun Park, Min Ho Jung, Nac Gyun Chung, Byung Kyu Suh, Byung Churl Lee
Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea. suhbk@catholic.ac.kr
Since insulin-like growth factor-I (IGF-I) and insulin-like growth factor binding protein-3 (IGFBP-3) are often used as markers for growth assessment, we compared the serum IGF-I and IGFBP-3 levels in children diagnosed with cancer with those in the healthy children. METHODS: Forty-nine children who were diagnosed with cancer and treated with radiotherapy or chemotherapy were enrolled in the study. Sixty-four healthy children without any medical problems were enrolled as controls. Height, weight, body mass index (BMI), height standard deviation score (HTSDS), serum IGF-I, serum IGFBP-3 and molar ratio of IGF-I/IGFBP-3 were compared between the two groups.
The mean age of children in the control group was 9.3+/-2.9 years and that of children in the cancer group was 8.8+/-3.3 years. There were no significant differences in mean height, weight, BMI and HT SDS between in the two group. Serum IGF-I levels increased with age in both groups, and the mean level of the control group was significantly higher than that of the cancer group. The mean serum level of IGFBP-3 in the control group was higher than that of the cancer group. IGF-I/IGFBP-3 molar ratio also increased with age in both groups and the mean level of molar ratio of the control group was higher than that of the cancer group. IGF-I, IGFBP-3, and IGF-I/IGFBP-3 molar ratio in the leukemia group and the solid tumor group were not significantly different. Mean age, IGF-I and IGFBP-3 concentrations in the chemotherapy group were higher than those in the chemotherapy and radiation therapy group.
The serum levels of IGF-I and IGFBP-3 in children diagnosed with cancer, treated with radiotherapy or chemotherapy, were lower than those of the control group. In conclusion, the serum levels of IGF-I and IGFBP-3 can possibly be used as early markers of growth assessment in children with cancer treatment.
Keywords: Cancers;IGF-I;IGFBP-3;Chemotherapy;Radiotherapy


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