[Th17 cells and IL-17 are increased in patients with brain metastases from the primary lung cancer].

Background And Objective: Th17 cells are important T helper cells, which are characterized by their production of IL-17. Th17 cells play an important role in host defense against microbial infections, autoimmune diseases and cancer. The aim of this study is to investigate the percentage of Th17 in peripheral blood lymphocyte and the level of IL-17 in serum and cerebrospinal fluid (CSF) in patients with brain metastases from lung cancer.

[Research of extracting and purifying taxol from the branches of Taxus media].

Objective: The study was to explore extracting and purifying technology of taxol from the branches of Taxus media.

Method: In extracting phase, the solvent extraction, ultrasonic extraction and the supercritical CO2 fluid extraction were studied respectively; In purifying phase, the extracts were disposed by silica gel column chromatography and preparation lamella chromatography, then crystaled by N-Hexane. The content of taxol was detected by HPLC.