Lipid-peroxidantion damage of embryo and placenta induced by artesunate in rats.
- Author:
Xiao-E LOU
1
;
Hui-Jun ZHOU
;
Hong-Bian HUANG
Author Information
- Publication Type:Journal Article
- MeSH: Animals; Antimalarials; toxicity; Artemisinins; toxicity; Embryo, Mammalian; drug effects; metabolism; Female; Glutathione Peroxidase; metabolism; Lipid Peroxidation; drug effects; Male; Placenta; drug effects; metabolism; Rats; Rats, Sprague-Dawley; Sesquiterpenes; toxicity
- From: Journal of Zhejiang University. Medical sciences 2003;32(1):41-45
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo examine the effect and mechanism of artesunate (Art) on embryo development.
METHODSRat embryo and placental glutathione peroxidase (GSH-Px)and malondialdehyde (MDA) were identified by using DTNB (dithionitrobenzene) direct method and TBA (thiobarbituric acid). We investigated the damage of decidual cells caused by Art using cell culture techniques.
RESULTSSubcutaneous administration of Art in rats on d 6 approximate, equals d 10 of gestation induced developmental toxicity. Absorption increased when progressively increased doses were given (r=0.996,P<0.01). Twenty four hours post injection, GSH-Px in embryo decreased significantly while MDA content was significantly higher than that in the control group (P<0.05). GSH Px: study group was(43.7+/-10.7)micromol/min.mg(-1)Hb, control group was(54.5+/-10.1)micromol/min.mg(-1)Hb; MDA:study group was(230.2+/-19.8)nmol/g tissue, control group was(150.4+/-44.1)nmol/g tissue. Placental GSH-Px activity was significantly higher than that in the control group(P<0.01). After cultured human decidual cells were exposed to Art for 24 h, the LC50 was (25.2+/-3.5)mg/L.
CONCLUSIONArt may induce developmental toxicity in rat embryo and placenta by neutralizing the antioxidant defense mechanism.
