نتایج جستجو برای: tyrosine hydroxylase neurons
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Tyrosine hydroxylase catalyses the hydroxylation of L-tyrosine to l-DOPA, the rate-limiting step in the synthesis of catecholamines. Mutations in the TH gene encoding tyrosine hydroxylase are associated with the autosomal recessive disorder tyrosine hydroxylase deficiency, which manifests phenotypes varying from infantile parkinsonism and DOPA-responsive dystonia, also termed type A, to complex...
In vitro populations of neurons dissociated from the superior cervical ganglion of the rat embryo can acquire many of the properties of cholinergic neurons and yet retain some of the characteristics of adrenergic neurons. To determine whether one neuron can stably express properties of two transmitter systems, identified neurons were characterized by both immunocytochemical and electrophysiolog...
Hypothalamic arcuate nucleus tyrosine hydroxylase neurons play orexigenic role in energy homeostasis
introduction: parkinsonrquote s disease (pd) is a human neurodegenerative disorder which is associated with a massive and progressive degeneration of dopaminergic neurons in subistantia nigra (sn). there is a strong evidence of an oxidative stress participates in the etiology of pd. materials and methods: the rats were divided into sham-operated, experimental and vitamin e-treated groups. for a...
We have identified a 56-kilodalton protein in cultured bovine adrenal chromaffin cells that is phosphorylated when catecholamine secretion is stimulated. Immunodetection on Western blots from both one- and two-dimensional polyacrylamide gels indicated that this protein was tyrosine hydroxylase, the rate-limiting enzyme in catecholamine biosynthesis. Two-dimensional polyacrylamide gel electropho...
The human fetal ventral mesencephalon-derived stem cell line, hVM1, yields high number of tyrosine hydroxylase-expressing presumed dopaminergic neurons upon in vitro differentiation. Here we report that cells generated from this line differentiate into a neuronal phenotype, express electrophysiological properties of functional neurons and respond to neurotransmitters in vitro. However, the elec...
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