Neuroprotective effect of silymarin in 6-hydroxydopamine hemi-parkinsonian rat: Involvement of estrogen receptors and oxidative stress

被引:88
作者
Baluchnejadmojarad, Tourandokht [1 ]
Roghani, Mehrdad [2 ,3 ]
Mafakheri, Mehdi [1 ]
机构
[1] Iran Univ Med Sci, Sch Med, Dept Physiol, Tehran, Iran
[2] Shahed Univ, Sch Med, Dept Physiol, Tehran, Iran
[3] Shahed Univ, Med Plant Res Ctr, Tehran, Iran
关键词
Silymarin; 6-Hydroxydopamine; Parkinson's disease; Estrogen receptor; Oxidative stress; MILK THISTLE; INDUCED NEUROTOXICITY; NEUROBLASTOMA-CELLS; SILYBUM-MARIANUM; DISEASE; BRAIN; MODEL; MECHANISMS; PROTECTION; SILIBININ;
D O I
10.1016/j.neulet.2010.06.038
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
This study examined neuroprotective effect of silymarin (SM) in a model of Parkinson's disease (PD). Unilateral intrastriatal 6-hydroxydopamine (6-OHDA)-lesioned rats were pretreated i.p. with SM (100 and 200 mg/kg) 1 h before neurotoxin injection. Fulvestrant was used to evaluate the involvement of estrogen receptors. Net apomorphine-induced rotations and number of Nissl-stained neurons of substantia nigra pars compacta (SNC) were counted in addition to measurement of oxidative stress markers. SM administration only at a dose of 200 mg/kg attenuated the rotational behavior in 6-OHDA-lesioned rats and protected the neurons of SNC against its toxicity and fulvestrant partially attenuated this beneficial effect of SM. In addition, pretreatment with SM at a dose of 200 mg/kg significantly decreased the 6-OHDA-induced thiobarbituric acid reactive substances (TBARS) formation. SM exhibits a dose-dependent neuroprotective effect against 6-OHDA toxicity, partly through attenuating oxidative stress and via an estrogenic pathway. (C) 2010 Elsevier Ireland Ltd. All rights reserved.
引用
收藏
页码:206 / 210
页数:5
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