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)

Argyria: the intradermal "photograph," a manifestation of passive photosensitivity.

X-ray microprobe and electron microscopic study was made of the remarkable blue-black pigmentation that sunlight elicits in patients with argyria. The patient under study had developed argyria following injection of silver nitrate as a sclerosant into his varicose veins 41 years ago. Similarities are demonstrated between the darkening of the skin and the darkening of a photographic film following light exposure. In both instances, colorless silver salts and compounds present in an inert matrix (collagen versus gelatin) are reduced by incident light to black metallic silver. This passive photosensitivity reaction leads to silver tattooing of the light-exposed skin and to photographic imaging in the film.[1]


  1. Argyria: the intradermal "photograph," a manifestation of passive photosensitivity. Shelley, W.B., Shelley, E.D., Burmeister, V. J. Am. Acad. Dermatol. (1987) [Pubmed]
WikiGenes - Universities