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)

Frataxin deficiency in pancreatic islets causes diabetes due to loss of beta cell mass.

Diabetes is caused by an absolute (type 1) or relative (type 2) deficiency of insulin-producing beta cells. We have disrupted expression of the mitochondrial protein frataxin selectively in pancreatic beta cells. Mice were born healthy but subsequently developed impaired glucose tolerance progressing to overt diabetes mellitus. These observations were explained by impairment of insulin secretion due to a loss of beta cell mass in knockout animals. This phenotype was preceded by elevated levels of reactive oxygen species in knockout islets, an increased frequency of apoptosis, and a decreased number of proliferating beta cells. Hence, disruption of the frataxin gene in pancreatic beta cells causes diabetes following cellular growth arrest and apoptosis, paralleled by an increase in reactive oxygen species in islets. These observations might provide insight into the deterioration of beta cell function observed in different subtypes of diabetes in humans.[1]


  1. Frataxin deficiency in pancreatic islets causes diabetes due to loss of beta cell mass. Ristow, M., Mulder, H., Pomplun, D., Schulz, T.J., Müller-Schmehl, K., Krause, A., Fex, M., Puccio, H., Müller, J., Isken, F., Spranger, J., Müller-Wieland, D., Magnuson, M.A., Möhlig, M., Koenig, M., Pfeiffer, A.F. J. Clin. Invest. (2003) [Pubmed]
WikiGenes - Universities