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Absorption, distribution and elimination of (59)Fe- corn polysaccharide iron complex in rats: a study with radioactivity isotope tracing / 南方医科大学学报
Journal of Southern Medical University ; (12): 1638-1642, 2013.
Article in Chinese | WPRIM | ID: wpr-232735
ABSTRACT
<p><b>OBJECTIVE</b>To establish a method for detecting plasma concentration of corn polysaccharide iron complex (CPIC) and investigate its absorption, distribution and elimination in rats.</p><p><b>METHODS</b>Using radioactivity isotope tracing method, we detected the radioactivity of (59)Fe-CPIC in the plasma of rats at different time points by gavages of 3 doses (28.0, 14.0, and 7.0 mg/kg) (59)Fe-CPIC in SD rats. The pharmacokinetic parameters was obtained using DAS 2.0 program for analysis of tissue distribution and elimination of (59)Fe-CPIC.</p><p><b>RESULTS</b>The standard curve was linear within the range of 0.14-141 µg/ml (r=0.9999, n=5). The average recovery was 95% with a relative standard deviation no more than 15%. The pharmacokinetic parameters at 3 doses obtained, namely t1/2 and AUC (0-), were 214∓104, 231∓110, and 181∓81 min, and 1986.3∓513.3, 737.0∓467.0, and 315.1∓226.1 mg·min-1·L(-)1, respectively. (59)Fe-CPIC were detected in all the 13 tissues types examined and high radioactivity intensity was found in the gastrointestinal tract, hematogenic organs and other organs rich in blood. (59)Fe-CPIC was eliminated after intragastric administration primarily via the feces in rats.</p><p><b>CONCLUSION</b>The method we established is easy and specific, and the pharmacokinetic parameters of (59)Fe-CPIC fit the two- compartment open model.</p>
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Polysaccharides / Urine / Pharmacokinetics / Tissue Distribution / Random Allocation / Chemistry / Administration, Oral / Rats, Sprague-Dawley / Area Under Curve / Zea mays Type of study: Prognostic study Limits: Animals Language: Chinese Journal: Journal of Southern Medical University Year: 2013 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Polysaccharides / Urine / Pharmacokinetics / Tissue Distribution / Random Allocation / Chemistry / Administration, Oral / Rats, Sprague-Dawley / Area Under Curve / Zea mays Type of study: Prognostic study Limits: Animals Language: Chinese Journal: Journal of Southern Medical University Year: 2013 Type: Article