Protective effect of tetramethylpyrazine against apoptosis of vascular endothelial cells induced by arachidonic acid Effects of Magnesium Lithospcramatc B on Cyclooxygenase Activity in Rat Liver,Adherent Cells and Enzyme’s Product Effects of Xueshuantong injection on platelet aggregation in rabbits in vitro Primary role and extraction of arachidonic acid Functional Characterization of Isochrysis galbana Δ5 Desaturase Gene IgD5 in Arabidopsis thaliana Studies on the Acting Point of Arachidonic Acid in Taxol Bios ynthetic Pathway