[Antagonism of total flavonoids from Chrysanthemum morifolium against lead induced oxidative injury in mice].
OBJECTIVE
To investigate antagonism effects of total flavonoids from Chrysanthemum morifolium. (TFCM) against lead induced oxidative injury.


METHODS
Ninety male mice were randomly divided into 9 groups. Mice except normal control group inject lead acetate every other day for 20 days. In the next 10 d, drugs were orally administrated to mice once a day. After the last aministration, mice were sacrificed and immediately subjected to necropsy. The concentration of lead, zinc and copper in blood, brain, liver and kidney were determined. The body weight, relative organ weight, antioxidant enzyme levels (GSH, GSH-Px, SOD and CAT) and lipid peroxidation products (MDA) were performed.


RESULTS
TFCM might antagonize the decrease of body weight and the increase of organ weight/body weight ratio. The combined treatment with TFCM and DMSA can significantly lower the lead levels in blood, brain, liver and kidney. In contrast, lead concentration in mice treated with TFCM alone did not show significant change in these organs. The other trace elements such as zinc and copper had no significant decrease after TFCM or DMSA treatment. Middle and high-dose TFCM was more effective than DMSA in increasing the activity of GSH, GSH-Px, SOD, CAT and decreasing the concentration of MDA in mice brain. In addition, high-dose TFCM was more effective than DMSA in increasing the activity of GSH-Px, CAT and decreasing the concentration of MDA in mice liver and kidney. The combined treatment with TFCM and DMSA also can reverse lipid peroxidation and increase antioxidant enzyme levels in lead poisoning mice dose-dependently, and it had more beneficial effects than treatment with DMSA alone.


CONCLUSIONS
TFCM might improve antioxidant defense system, reverse lipid peroxidation and protect brain, liver and kidney against lead induced oxidative damage in mice significantly.
Xia
Dao-zong
DZ
College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China. xdz1978@126.com
Lv
Gui-yuan
GY
Yu
Xin-fens
XF
Wang
Hui-ming
HM
Yang
Qing
Q
D000284:Administration, Oral; D000818:Animals; D001921:Brain / Q000187:drug effects / Q000378:metabolism; D031202:Chrysanthemum / Q000737:chemistry*; D003300:Copper / Q000097:blood / Q000378:metabolism; D004336:Drug Antagonism; D005419:Flavonoids / Q000008:administration & dosage* / Q000737:chemistry; D007668:Kidney / Q000187:drug effects / Q000378:metabolism; D007854:Lead / Q000097:blood / Q000378:metabolism*; D008099:Liver / Q000187:drug effects / Q000378:metabolism; D008297:Male; D051379:Mice; D008813:Mice, Inbred ICR; D018384:Oxidative Stress / Q000187:drug effects*; D011897:Random Allocation; D004113:Succimer / Q000008:administration & dosage*; D015032:Zinc / Q000097:blood / Q000378:metabolism
D005419:Flavonoids; D007854:Lead; D003300:Copper; D004113:Succimer; D015032:Zinc