Microglia activation induces oxidative injury and decreases SIRT3 expression in dopaminergic neuronal cells.

Microglia activation-mediated neuroinflammation plays an important role in the progression of Parkinson's disease (PD). However, effects of microglia activation on dopaminergic neuronal cell (DAC) fate are still poorly understood. The objective of this study was to explore the neurotoxic effects of microglia activation-mediated oxidative injury in DACs and its possible mechanisms.

[Chemical Constituents from Semiliquidambar cathayensis Roots].

Objective: To study the chemical constituents from the roots of Semiliquidambar cathayensis.

Methods: The roots of Semiliquidambar cathayensis were extracted with 80% ethanol for reflux. Chemical constituents were isolated by silica gel chromatography and Sephadex LH-20 column chromatography from petrol ether part and ethyl acetate part of extracts.

[Study on Chemical Constituents of Stems from Altingia chinensis].

Objective: To study the chemical constituents of the stems from Altingia chinensis.

Methods: The stems from Altingia chinensis were extracted with 95% ethanol for reflux,and the extract were evaporated. The chemical constituents were isolated by silica gel chromatography and Sephadex LH-20 column chromatography from petrol ether part and ethyl acetate part of extract.