Abstract:
BACKGROUND:MTBH, a novel hesperetin derivative, possesses in vivo hepatoprotective effects against carbon tetrachloride (CCl4)-induced acute liver injury in Institute of Cancer Research (ICR) mice. OBJECTIVES:This study investigated the pharmacokinetics and tissue distribution of MTBH and its conjugated metabolites in rats after a single dose of MTBH. METHODS:Male Sprague-Dawley (SD) rats were orally administered (25, 50, 100 mg/kg) or intravenously administered (25 mg/kg) MTBH and blood samples were withdrawn at specific times. Moreover, after a single oral dose of MTBH (200 mg/kg), tissues (heart, liver, spleen, lung, kidney, stomach, intestine, brain and muscle) were collected at scheduled time points. RESULTS:The concentration of MTBH in plasma and tissues was assayed by HPLC before and after hydrolysis with β-glucuronidase or sulfatase. The glucuronides/sulfates were extensively present in the plasma, moreover, the free form was detectable in the plasma, but in a small amount equivalent to nearly 0.85-1.46 % of the amount of glucuronides/sulfates, the absolute bioavailability of MTBH was approximately 31.27 %. In tissues, the free form appeared in all tissues examined, with trace amount in brain and muscle, and considerable concentration in stomach and lung. Glucuronides/sulfates were the major forms in intestine, kidney and liver, whereas not detectable in heart, brain and muscle. The liver and intestine were found likely to accumulate MTBH at a high concentration among all tissues. CONCLUSIONS:The free form of MTBH was present in the circulation and all assayed organs, whereas its glucuronides/sulfates were the major forms in plasma and intestine, kidney and liver after a single dose.
journal_name
Eur J Drug Metab Pharmacokinetjournal_title
European journal of drug metabolism and pharmacokineticsauthors
Shen C,Qian Z,Chen R,Meng X,Hu T,Chen Z,Li Y,Huang C,Hu C,Li Jdoi
10.1007/s13318-015-0293-2subject
Has Abstractpub_date
2016-12-01 00:00:00pages
675-688issue
6eissn
0378-7966issn
2107-0180pii
10.1007/s13318-015-0293-2journal_volume
41pub_type
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