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Age related interaction of dopamine and serotonin synthesis in striatal synaptosomes Biocell
Messripour,Manoochehr; Mesripour,Azadeh.
Tyrosine hydroxylase and tryptophan hydroxylase are key rate limiting enzymes in the biosyn-thesis of dopamine and serotonin, respectively. Since both enzymes are active in striatum, and affected by age, this study was undertaken to investigate interaction between dopamine and serotonin synthesis in brain striatal synaptosomes of aging rat. Male Wistar rats (3 and 30 month old) were killed by decapitation and brain striatal synaptosomes were prepared by discontinuous Ficoll/sucrose gradient technique. Synaptosomes were incubated in the presence of added pargiline (monoamineoxidase inhibitor), dopamine or serotonin synthesized during 25 min was measured by HPLC, employing electrochemical detection. Dopamine synthesis in synaptosomes prepared from young...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aging; Nerve ending; Neurotransmitter; Tyrosine hydroxylase; Tryptophan hydroxylase.
Ano: 2013 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452013000200001
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