The cause was emphysema, said his son Robert L. Holton. Discovered more than 50 years ago in the bark of the Pacific yew tree, Taxol remains one of the world’s leading anticancer agents, a ...

Pacific yew In 1958, ... a study of over 30,000 plant species in hopes of discovering cancer-fighting compounds. Scientists found one in the bark of the Pacific yew, ...

Discovery of paclitaxel. Samples of the Pacific yew's bark were initially collected in 1962 by Arthur Barclay and other investigators from the US Department of Agriculture (USDA), contracted by ...

The vascular cambium and bark used to be harvested for a type of chemotherapy drug called paclitaxel, but drug manufacturers now use a semisynthetic version of cultivated Pacific yew bark to make ...

The authors describe some of the unique problems of using a natural product as a drug. For example, obtaining sufficient yew bark (the original source of taxol) for large clinical trials, let ...

Taxol was originally extracted from the inside bark of the Pacific yew tree (Taxus brevifolia), but as the taxol content in the bark is very low, ...

Pacific Yew Tree (IMAGE) ... Taxol, the anti-cancer drug, is produced naturally in the bark of Pacific Yew trees, which take 80 years to grow. Credit. National Cancer Institute. Usage Restrictions.