Kateholamini: Razlika med redakcijama
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Vrstica 7:
So derivati [[aminokislina|aminokisline]] [[tirozin]]a.<ref name="Purves">{{cite book |editor1=Purves, D. |editor2=Augustine, G.J. |editor3=Fitzpatrick, D. |editor4=Hall, W.C. |editor5=LaMantia, A.S. |editor6=McNamara, J.O. |editor7=White, L.E. | title = Neuroscience |url=https://archive.org/details/neuroscienceissu00purv | edition = 4. | publisher = Sinauer Associates | pages = [https://archive.org/details/neuroscienceissu00purv/page/n162 137]–8 | year = 2008 | isbn = 978-0-87893-697-7 }}</ref> Tirozin nastane s [[hidroksilacija|hidroksilacijo]] fenilalanina s pomočjo encima [[fenilalanin-hidroksilaza|fenilalanin-hidroksilaze]], prav tako pa ga telo pridobi iz [[beljakovina|beljakovin]] v prehrani. Celice, ki proizvajajo in izločajo kateholamine, uporabljajo različne reakcije pretvorbe tirozina preko [[L-DOPA|L-dope]] do dopamina. Odvisno od celice se lahko dopamin nadalje pretvori do noradrenalina in naprej do adrenalina.<ref>{{cite journal | author1 = Joh, T. H.|author2= Hwang, O. | title = Dopamine Beta-Hydroxylase: Biochemistry and Molecular Biology | url = https://archive.org/details/sim_annals-of-the-new-york-academy-of-sciences_1987_493/page/342| journal = Annals of the New York Academy of Sciences | volume = 493 | issue = | pages = 342–350 | year = 1987 | pmid = 3473965 | doi = 10.1111/j.1749-6632.1987.tb27217.x }}</ref>
Visoke ravni kateholaminov v krvi so povezane s [[stres (medicina)|stresom]]. Med tako imenovanim [[odziv boja ali bega|odzivom boja ali bega]] se namreč iz [[nadledvičnica|nadledvičnic]] sprostijo velike količine adrenalina in noradrenalina.<ref>{{cite web | url = http://myhealth.ucsd.edu/library/healthguide/en-us/support/topic.asp?hwid=te7424 | publisher = University of California | location = San Diego | work = Health Library | title = Catecholamines | accessdate = 2016-01-12 | archive-date = 2011-07-16 | archive-url = https://web.archive.org/web/20110716025522/http://myhealth.ucsd.edu/library/healthguide/en-us/support/topic.asp?hwid=te7424 | url-status = dead }}</ref> Nekateri značilni učinki so zvečana hitrost bitja srca in zvišana raven [[krvni sladkor|glukoze v krvi]].
== Zgradba ==
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