[Advances in researches on mechanism of anti-Toxoplasma Chinese herbal medicine].

Toxoplasma gondii is an opportunity cellular parasite, related to the infection of various animals and human beings and severely impairing agriculture and human health. Because of the complexity of T. gondii life cycle, its different biological characteristics, and multifarious pathogenesis, there are no specific treatment and preventive medicines at present.

[GC-MS analysis and analgesic activity of essential oil from fresh rhizoma of Cyperus rotundus].

Objective: To observe the analgesic effect and analysis the chemical components of essential oil (EOC) from fresh rhizome of Cyperus rotundus.

Methods: Hydrodistillation method was used to extract EOC; Acetic acid induced mice stretching model was applied to evaluate the analgesic effect of EOC. Gas chromatography coupled with mass spectrometry (GC-MS) were applied for the analysis of EOC.