Glucocorticoids and insulin resistance in children with acute lymphoblastic leukemia

Autor: Stephanie J. Lee, Christian L. Roth, Jeannine S. McCune, K. Scott Baker, Debra L. Friedman, Catherine Pihoker, Claire Wharton, Eric J. Chow
Rok vydání: 2012
Předmět:
Zdroj: Pediatric Blood & Cancer. 60:621-626
ISSN: 1545-5009
Popis: Background Children treated for acute lymphoblastic leukemia (ALL) are more likely to become overweight. Prolonged exposure to high-dose glucocorticoids may cause insulin resistance and facilitate development of this phenotype. Procedure Body mass indices (BMI) and insulin resistance (homeostatic model assessment [HOMA]-IR) were prospectively measured among on- (n = 31) and off-therapy participants (n = 29). On-therapy participants were assessed prior to and while on glucocorticoids (5 days of prednisone 40 mg m−2 or dexamethasone 6 mg m−2) given as part of routine maintenance chemotherapy, with a subset (n = 10) receiving an intravenous glucose tolerance test (IVGTT) while on glucocorticoids. Results Baseline HOMA-IR values among on- and off-therapy participants were similar, but among on-therapy participants, HOMA-IR increased significantly with glucocorticoid exposure (median 3.39 vs. 1.26; P 4.39 (upper 2.5th percentile among normal weight adolescents). Although baseline HOMA-IR was significantly correlated with current BMI (r = 0.48, P
Databáze: OpenAIRE