Abstract:
CONTEXT:Andrographis paniculata (Burm.f.) Nees (Acanthaceae) is widely used in tribal medicine in India and some other countries for multiple clinical applications. It contains andrographolide (AG) (diterpenoid lactone), a major phytomarker which probably accounts for its medicinal properties. OBJECTIVE:This study investigates the site-specific distribution of AG in different tissues of rats and its pharmacokinetic parameter evaluation by using a validated liquid chromatography tandem mass spectrometry (LC-MS/MS) method. MATERIALS AND METHODS:A simple and sensitive LC-MS/MS method has been developed and validated to quantify the presence of AG in plasma and various tissues of rat following oral administration of A. paniculata extract and AG in a dose of 133.33 and 100 mg/kg/day, respectively, for four weeks. RESULTS:The present study showed that the highest concentration of AG was in kidney (156.12 ng/g) followed by liver, spleen and brain while almost same concentration was found in heart and lung. The apparent C(max), T(max), elimination half-life and total exposure (AUC(0-α)) were 115.81 ng/ml, 0.75, 2.45 and 278.44 ngh/ml, respectively. CONCLUSION:This was an attempt to determine the presence of AG (a known biomarker) in tissues such as kidney, heart, lungs, brain and plasma of rats using a validated LC-MS/MS method. Furthermore, the observed reduced concentration in plasma and various tissues from 1 to 8 h might be attributed to relatively rapid elimination or distribution of AG from the central compartment.
journal_name
Pharm Bioljournal_title
Pharmaceutical biologyauthors
Bera R,Ahmed SK,Sarkar L,Sen T,Karmakar Sdoi
10.3109/13880209.2013.836544subject
Has Abstractpub_date
2014-03-01 00:00:00pages
321-9issue
3eissn
1388-0209issn
1744-5116journal_volume
52pub_type
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