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  • Title: Neuroanatomical abnormalities related to dexamethasone exposure in survivors of childhood acute lymphoblastic leukemia.
    Author: Phillips NS, Cheung YT, Glass JO, Scoggins MA, Liu W, Ogg RJ, Mulrooney DA, Pui CH, Robison LL, Reddick WE, Hudson MM, Krull KR.
    Journal: Pediatr Blood Cancer; 2020 Mar; 67(3):e27968. PubMed ID: 31407461.
    Abstract:
    Survivors of childhood acute lymphoblastic leukemia (ALL) treated with chemotherapy only are at risk for neurocognitive impairment. Regions of interest were identified a priori based on glucocorticoid receptor distribution, and sex-stratified multivariable linear regression models were used to test associations between brain MRI morphology and total number of intrathecal injections, and serum concentration of dexamethasone and methotrexate. Compared with controls, ALL survivors have persistently smaller volumes in the bilateral cerebellum (P < 0.005), hippocampal subregions (P < 0.03), temporal lobe regions (P < 0.03), frontal lobe regions (P < 0.04), and parietal lobe regions (precuneus; P < 0.002). Long-term problems with learning may be related to residual posttreatment brain differences.
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