Articles: PubMed:High throughput screening of natural products for anti-mitotic effects in MDA-MB-231 human breast carcinoma cells. PubMed:Aplotaxene blocks T cell activation by modulation of protein kinase C-θ-dependent pathway. PubMed:Synthesis of small combinatorial libraries of natural products: identification and quantification of new long-chain 3-methyl-2-alkanones from the root essential oil of Inula helenium L. (Asteraceae). PubMed:Conformational analysis of antistaphylococcal sesquiterpene lactones from Inula helenium essential oil. PubMed:Ultrasound-assisted extraction of total flavonoids from Inula helenium. PubMed:Moisture sorption isotherms and glass transition temperature of elecampe (Inula helenium L.) and burdock (Arctium lappa L.) roots at 25°C. PubMed:Antistaphylococcal activity of Inula helenium L. root essential oil: eudesmane sesquiterpene lactones induce cell membrane damage. PubMed:Authentication of Saussurea lappa, an endangered medicinal material, by ITS DNA and 5S rRNA sequencing. PubMed:Authentication of Radix Aucklandiae and its substitutes by GC-MS and hierarchical clustering analysis. PubMed:Simultaneous quantification of eudesmanolides and thymol derivatives from tissues of Inula helenium and I. royleana by reversed-phase high-performance liquid chromatography. PubMed:Antimicrobial activity of 10-isobutyryloxy-8,9-epoxythymol isobutyrate. PubMed:Thymol derivatives from a root culture of Inula helenium. PubMed:Antimycobacterial eudesmanolides from Inula helenium and Rudbeckia subtomentosa.