Liu YP, Li QS, Huang YR, Zhou MJ, Liu CX. Pharmacokinetics of C-1027 in mice as determined by TCA-RA method.
World J Gastroenterol 2005;
11:717-20. [PMID:
15655829 PMCID:
PMC4250746 DOI:
10.3748/wjg.v11.i5.717]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2004] [Revised: 02/24/2004] [Accepted: 03/18/2004] [Indexed: 02/06/2023] Open
Abstract
AIM
To validate a radioactivity assay, the TCA-RA method, for the measurement of C-1027 in serum and to evaluate its application in determination of pharmacokinetics of C-1027 in mice.
METHODS
(125)I-C-1027 was prepared by the Iodogen method and separated by HPLC. The radioactivity assay was established and used to determine (125)I-C-1027 in mice at doses of 10, 50 and 100 microg/kg after precipitation with 20% trichloroacetic acid (TCA-RA method). Several pharmacokinetic parameters were determined after intravenous injection of (125)I-C-1027 to mice.
RESULTS
After intravenous injection of (125)I-C-1027 to mice, at doses of 10, 50 and 100 microg/kg; the apparent distribution volumes (V(d)) were 0.26, 0.31 and 0.33 L/kg; the biological half-lives (T(1/2)) were 3.10, 3.40 and 3.90 h; the areas under curve (AUC) were 18.41, 103.69 and 202.74 ng/h/mL; the elimination rate constants (K) were 1.04, 1.26 and 0.58/h; and the total body clearance (Cl) were 0.54, 0.48 and 0.49 L/kg/h, respectively.
CONCLUSION
TCA-RA is a sensitive, reliable and suitable method for the determination of (125)I-C-1027 in mouse serum.
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