ArticleBiological trace element research1993
Changes of CSF-Cu and -Zn in children with acute lymphoblastic leukemia.
Article in Biological trace element research, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
In 20 Dutch children with acute lymphoblastic leukemia (ALL), Cu and Zn levels in cerebrospinal fluid (CSF) were studied during standard treatment (Protocol ALL-BFM-86/SNWLK-ALL-VII). CSF-Cu in 10 controls was 0.04 +/- 0.02 mumol/L, lower compared to values in adults. At the moment of diagnosis, CSF-Cu values were higher, 0.06 +/- 0.03 mumol/L, and during maintenance therapy lower, 0.01 +/- 0.01 mumol/L. Children with central nervous system (CNS) involvement ALL as judged by CAT Scan and EEG--in addition to cytology--showed lower CSF-Cu values compared to children without. CSF-Zn values were also measured. CSF-Zn was 0.05 mumol/L and did not vary. Cu/Zn molar ratios were increased at the onset of treatment, and decreased during maintenance therapy. The changes in CSF-Cu may follow the natural course of the disease or may relate to the success of treatment, reflecting a decrease of leukemia activity. Another explanation concerns a risk of CNS damage by low CSF-Cu causing neuron dysfunction. Conditions necessary for the interpretation of these results into a clinical strategy for followup study are outlined.
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