NE is present in neurons of the locus ceruleus, which have widespread projections to the cerebral cortex, cerebellum, and spinal cord. NE is the transmitter used by the postganglionic neurons of the sympathetic nervous system.

c. Epinephrine In the adrenal medulla, NE is converted to epinephrine by methylation. This reaction is catalyzed by phentolamine-N-methyltransfer-ase and requires S-adenosylmethionine as a methyl donor.

a. Dopamine For the synthesis of catecholamines, the essential amino acid L-tyrosine is converted to l-dihydrophenylalanine (l-DOPA).

Was this article helpful?

0 0
All About Alzheimers

All About Alzheimers

The comprehensive new ebook All About Alzheimers puts everything into perspective. Youll gain insight and awareness into the disease. Learn how to maintain the patients emotional health. Discover tactics you can use to deal with constant life changes. Find out how counselors can help, and when they should intervene. Learn safety precautions that can protect you, your family and your loved one. All About Alzheimers will truly empower you.

Get My Free Ebook

Post a comment