Abstract
Curcumin (CUR) is the major active component of turmeric and plays an important role in the prevention and treatment of many chronic diseases such as respiratory and neurodegenerative disease. In the present work, a rapid and simple LC-MS/MS method was developed to investigate the pharmacokinetics and tissue distribution of CUR and its metabolites in mice after intravenous administration of CUR (20 mg/kg). The results showed that the values of AUC0-∞ were 107.0 ± 18.3, 6.0 ± 1.2 and 12.0 ± 4.0 (mg/L) min, and those for t1/2z were 32.4 ± 10.8, 6.4 ± 2.4 and 5.6 ± 1.8 min for CUR, dihydrocurcumin (DHC) and tetrahydrocurcumin (THC) in plasma, respectively. CUR and THC could be detected in liver while CUR and DHC were detected in kidney. Only CUR was detected in brain. These findings indicated that THC was the main metabolite of CUR in plasma. The exposure of CUR in plasma was 6-fold greater than that in liver, kidney and brain.
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