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ganglion cysts/l tyrosine
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Low-Na+ medium increases the activity and the phosphorylation of tyrosine hydroxylase in the superior cervical ganglion of the rat.
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Incubation of the rat superior cervical ganglion in Na+-free or low-Na+ medium increased the rate of synthesis of 3,4-dihydroxyphenylalanine (DOPA) in the ganglion fourfold and caused a concomitant stable activation of tyrosine hydroxylase. DOPA synthesis was half-maximal in medium containing about
Effects of dexamethasone and other glucocorticoid steroids on tyrosine hydroxylase activity in the superior cervical ganglion.
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Dexamethasone is known to elicit an increase of tyrosine hydroxylase activity in the superior cervical ganglion. The details of such a glucocorticoid effect were investigated in the present study. Of 4 glucocorticoids (dexamethasone, corticosterone, hydrocortisone and triamcinolone) examined in
Preganglionic stimulation increases the phosphorylation of tyrosine hydroxylase in the superior cervical ganglion by both cAMP-dependent and Ca2+-dependent protein kinases.
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Electrical stimulation of the preganglionic cervical sympathetic trunk increases the phosphorylation of tyrosine hydroxylase in the superior cervical ganglion of the rat by a nicotinic mechanism and by a noncholinergic mechanism. We have measured the incorporation of [32P]Pi into specific tryptic
Phorbol 12,13-dibutyrate increases tyrosine hydroxylase activity in the superior cervical ganglion of the rat.
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Phorbol 12,13-dibutyrate (PDBu) increased the production of 3,4-dihydroxyphenylalanine (DOPA) in the superior cervical ganglion of the rat. This effect occurred without a detectable lag and persisted for at least 90 min of incubation. The action of PDBu was half-maximal at a concentration of
Imipramine protects retinal ganglion cells from oxidative stress through the tyrosine kinase receptor B signaling pathway.
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Retinal ganglion cell (RGC) degeneration is irreversible in glaucoma and tyrosine kinase receptor B (TrkB)-associated signaling pathways have been implicated in the process. In this study, we attempted to examine whether imipramine, a tricyclic antidepressant, may protect hydrogen peroxide
Secretin and vasoactive intestinal peptide acutely increase tyrosine 3-monooxygenase in the rat superior cervical ganglion.
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We have previously shown that stimulation of the preganglionic cervical sympathetic trunk leads to an acute increase in tyrosine hydroxylase (TyrOHase) activity in the rat superior cervical ganglion. This increase appears to be mediated in part by acetylcholine and in part by a second
Phosphorylation of tyrosine hydroxylase in the superior cervical ganglion.
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We studied the phosphorylation of tyrosine hydroxylase in the superior cervical ganglion of the rat. Ganglia were preincubated with [32P]Pi and were then incubated in non-radioactive medium containing a variety of agents that are known to activate tyrosine hydroxylase in this tissue. Tyrosine
Muscarine increases tyrosine 3-monooxygenase activity and phospholipid metabolism in the superior cervical ganglion of the rat.
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Muscarinic agonists cause a stable activation of tyrosine 3-monooxygenase in the superior cervical ganglion and increase the incorporation of 32Pi into phospholipids in the ganglion. We have studied the relationship between muscarine-stimulated phospholipid turnover and the muscarine-induced
Activation of tyrosine hydroxylase in the superior cervical ganglion by nicotinic and muscarinic agonists.
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Both dimethylphenylpiperazinium (DMPP), a nicotinic agonist, and bethanechol, a muscarinic agonist, increase 3,4-dihydroxyphenylalanine (DOPA) synthesis in the superior cervical ganglion of the rat. DMPP causes approximately a fivefold increase in DOPA accumulation in intact ganglia whereas
Multiple receptor tyrosine kinases are expressed in adult rat retinal ganglion cells as revealed by single-cell degenerate primer polymerase chain reaction.
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BACKGROUND
To achieve a better understanding of the repertoire of receptor tyrosine kinases (RTKs) in adult retinal ganglion cells (RGCs) we performed polymerase chain reaction (PCR), using degenerate primers directed towards conserved sequences in the tyrosine kinase domain, on cDNA from isolated
Immunocytochemical colocalization of histamine, histidine decarboxylase, 5-hydroxytryptamine and tyrosine hydroxylase in the superior cervical ganglion of the rat.
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The coexistence of histamine, histidine decarboxylase (the enzyme synthesizing histamine), 5-hydroxytryptamine and tyrosine hydroxylase (the rate-limiting enzyme in catecholamine synthesis), was studied in the rat superior cervical ganglion with the indirect immunofluorescence method. Possible
Long-term effects of preganglionic nerve stimulation on tyrosine hydroxylase activity in the rat superior cervical ganglion.
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The effects of increased synaptic stimulation of sympathetic neurons on the tyrosine hydroxylase activity of these cells were studied. Seventy-two hours after unilateral stimulation of the preganglionic cervical sympathetic trunk at 10 Hz for 30 min tyrosine hydroxylase activity was 32% higher in
Localization of tyrosine-phosphorylated proteins in cultured mouse dorsal root ganglion neurons.
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The present study, using confocal laser scanning microscopy and immunoelectron microscopy, examined the intracellular localization of tyrosine-phosphorylated proteins in cultured mouse dorsal root ganglion neurons with special reference to their growth cones. The growth cone is the specialized
Fine structural survey of tyrosine hydroxylase immunoreactive terminals in the myenteric ganglion of the rat duodenum.
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We have examined whether the noradrenergic neurons have direct synaptic projections to the myenteric ganglion neurons of the duodenum and the ultrastructure of their terminals by using immunogold-silver labeling for tyrosine hydroxylase. In the neuropil of the myenteric ganglia, about half of the
Inhibition of axoplasmic transport in the rat vagus nerve alters the numbers of neuropeptide and tyrosine hydroxylase messenger RNA-containing and immunoreactive visceral afferent neurons of the nodose ganglion.
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Previous work showed that axotomy-induced deafferentation of the placode-derived visceral afferent neurons of the nodose ganglion altered their expression of some neuropeptides and tyrosine hydroxylase. The present studies were designed to selectively evaluate the loss of axonal transport on the
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