title: Effects of Buyang Huanwu Decoction on antioxidant and drug-metabolizing enzymes in rat liver.
abstract: OBJECTIVE
  To study the effect of Buyang Huanwu Decoction (BYHWD) on the antioxidant enzymes and drug-metabolizing enzymes in rat liver.
  
  
  METHODS
  Following treatment of rats with BYHWD at 6.42, 12.83, or 25.66 g·kg(-1) per day for 15 days, microsomes and cytosols isolated from the liver tissues were prepared by differential centrifugation according to standard procedures. The activities of the antioxidant enzymes and cytochrome b5, NADPH-cytochrome P450 reductase, CYP3A, CYP2E1, UGT, and GST of the rat livers were determined by UV-Vis spectrophotometer.
  
  
  RESULTS
  The activities of ALT, AST, antioxidant enzymes, and the Hepatosomatic Index in serum were not significantly affected. In cytosols, the activity of CAT was significantly increased at the dosage of 12.83 g·kg(-1), and all the other antioxidant activities and MDA levels were not affected by this treatment. BYHWD had no effect on cytochrome b5, NADPH-cytochrome P450 reductase, CYP3A, and UGT. At the highest dose (25.66 g·kg(-1)), the activity of CYP2E1 was significantly inhibited, and the activities of GST and the level of GSH were increased.
  
  
  CONCLUSIONS
  BYHWD is safe for the liver, and has the functions of detoxification and antioxidant. Patients should be cautioned about the herb-drug interaction of BYHWD and CYP2E1 substrates.
authors: Department of Pharmacology, College of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530001, China; Department of pharmacy, Liuzhou Worker's Hospital, Liuzhou 545005, China.
authors: Xing-Hua
authors: XH
authors: Fan
authors: Department of Pharmacology, College of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530001, China.
authors: Wei-Zhou
authors: WZ
authors: Shi
authors: Department of Pharmacology, College of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530001, China.
authors: Yun-Xiang
authors: YX
authors: Cheng
authors: Department of Pharmacology, College of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530001, China. Electronic address: xiufenyang@163.com.
authors: Xiu-Fen
authors: XF
authors: Yang
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000378:metabolism / Q000494:pharmacology*; D002374:Catalase / Q000378:metabolism*; D019392:Cytochrome P-450 CYP2E1 / Q000378:metabolism*; D003600:Cytosol; D004365:Drugs, Chinese Herbal / Q000494:pharmacology*; D005978:Glutathione / Q000378:metabolism*; D005982:Glutathione Transferase / Q000378:metabolism*; D041743:Herb-Drug Interactions; D008658:Inactivation, Metabolic / Q000187:drug effects; D008099:Liver / Q000187:drug effects* / Q000201:enzymology; D008297:Male; D008861:Microsomes; D017207:Rats, Sprague-Dawley
chemical_list: D000975:Antioxidants; D004365:Drugs, Chinese Herbal; C460102:buyang huanwu; D002374:Catalase; D019392:Cytochrome P-450 CYP2E1; D005982:Glutathione Transferase; D005978:Glutathione
keywords: Antioxidant; Buyang Huanwu Decoction; Drug-metabolizing enzymes