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)
 
 
 
 
 

Preproenkephalin mRNA and methionine-enkephalin content are increased in mouse striatum after treatment with nicotine.

A single dose of nicotine increased methionine-enkephalin (Met-Enk) immunoreactivity in the striatum of mice in a time-dependent manner. Met-Enk content reached maximum by approximately 1 h after nicotine and returned to control values by 6 h. The response to nicotine was blocked by pretreating animals with the nicotinic receptor antagonist mecamylamine. In contrast, pretreating mice with the muscarinic receptor antagonist atropine or the dopamine receptor antagonist haloperidol did not block the response. A single dose of nicotine also increased mRNA for the precursor peptide preproenkephalin ( PPE). The increase of PPE mRNA preceded that of Met-Enk and reached a maximum by approximately 30 min after nicotine. PPE mRNA levels returned to near normal by approximately 3 h and increased again by 6 h after nicotine. Daily administration of nicotine for 14 days increased Met-Enk content and PPE mRNA in the striatum of mice as well. Taken together, our results suggest that nicotinic receptors modulate Met-Enk content and PPE mRNA in the mouse striatum.[1]

References

  1. Preproenkephalin mRNA and methionine-enkephalin content are increased in mouse striatum after treatment with nicotine. Dhatt, R.K., Gudehithlu, K.P., Wemlinger, T.A., Tejwani, G.A., Neff, N.H., Hadjiconstantinou, M. J. Neurochem. (1995) [Pubmed]
 
WikiGenes - Universities