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)
 
 
 
 
 

Inhibition of dihydropteridine reductase by catechol estrogens.

Catechol estrogens, such as 2-hydroxyestriol, 2-hydroxyestradiol, and 2-hydroxyestrone, inhibit human liver dihydropteridine reductase noncompetitively with Ki values ranging from 1.5 to 4.6 X 10(-6)M. Catechol estrogens lose approximately half of their inhibitory potency if the C-2 hydroxyl groups are methylated. Thus, 2-methoxyestrogens have inhibitory potencies equivalent to those of their parent estrogens--estriol, estradiol, and estrone. Aromatization of ring B or stereoisomerism at C-17 does not affect the inhibitory potency of estrogens, although stereoisomerism at C-16 enhances the inhibitory potency of estriol. These results support the hypothesis that catechol estrogens may interfere with catecholamine metabolism by acting as inhibitors of enzymes involved in catecholamine metabolism, such as dihydropteridine reductase.[1]

References

  1. Inhibition of dihydropteridine reductase by catechol estrogens. Shen, R.S., Abell, C.W. J. Neurosci. Res. (1983) [Pubmed]
 
WikiGenes - Universities