The world's first wiki where authorship really matters (Nature Genetics, 2008). Due credit and reputation for authors. Imagine a global collaborative knowledge base for original thoughts. Search thousands of articles and collaborate with scientists around the globe.

wikigene or wiki gene protein drug chemical gene disease author authorship tracking collaborative publishing evolutionary knowledge reputation system wiki2.0 global collaboration genes proteins drugs chemicals diseases compound
Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Effect of urea and pantothenol on the permeation of progesterone through excised rat skin from polymer matrix systems.

Standard in vitro permeation experiments, using excised rat skin, were carried out to establish the release profile and permeation behavior of progesterone from polymethacrylate (PMA), polyvinylpyrrolidon (PVP), and polyvinylalcohol (PVA) transdermal systems. Data obtained show significant differences in release characteristics from each polymer systems. The greatest amount of progesterone was released from the PVA system. The influence of urea and pantothenol on progesterone release was also investigated. Release data were compared with the permeation rates of progesterone across excised rat skin. The highest permeation rates were measured from PVA matrices containing 5% urea (860 +/- 138 micrograms/cm2; cumulative amount permeated in 24 hr) and from PVP matrices containing 6% pantothenol (660 +/- 73 micrograms/cm2; cumulative amount permeated in 24 hr). A good correlation between release and permeation data was found with the polymer matrices; however, this was not the case when additives were included.[1]


WikiGenes - Universities