These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: [Research on the pharmacokinetics and pharmacodynamics of L-asparaginase during its treatment of childhood acute lymphoblastic leukemia].
    Author: Chen FX, Cui YQ, Wu ZL, Ye TZ, Lai YH, Zou YW, Lu CY, Guan JM, Wei FG, Zhang H.
    Journal: Zhonghua Xue Ye Xue Za Zhi; 2005 Feb; 26(2):100-2. PubMed ID: 15921627.
    Abstract:
    OBJECTIVE: To investigate the changes in the activity of Escherichia coli asparaginase (L-asp) and the concentration of asparagines (ASN) in the plasma of the acute lymphoblastic leukemia (ALL) children receiving L-asp containing chemotherapeutic protocol to explore more reasonable usage of L-asp in the treatment of childhood ALL. METHODS: L-asp containing hemotherapy regimen of VDLP was used, in which L-asp (10,000 U/m(2)) was administered intravenously every other day for 10 doses in 15 children with ALL. A total of 340 peripheral blood samples were collected at scheduled time points during the therapy and plasma L-asp activity (by spectrophotometric assay) and asparagines concentration (by RP-HPLC) were measured. RESULTS: During the administration of L-asp, the plasma L-asp activity was increasing gradually peaked after eight doses and then decreased gradually, while the plasma concentration of asparagines maintained in complete or nearly complete depletion status. After the therapy courses finished, a plasma L-asp activity above 100 U/L with asparagines almost complete depletion status was lasting for about seven days. CONCLUSION: The current L-asp containing chemotherapeutic protocols in which L-asp was administered in a dose of 10 000/m(2) intravenously every other day, are efficient enough for the depletion of plasma ASN.
    [Abstract] [Full Text] [Related] [New Search]