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Showing 1 to 20 of 85 for “"Catecholamine"”.
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Catecholamine physiology in the sheep
A study of catecholamine physiology in the sheep has been carried out with emphasis on the measurement of plasma catecholamine levels and their interactions with lactic acid and cortisol. The plasma dynamics of the catecholamines were first examined under laboratory conditions followed by an …
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Regulation of Luteinizing Hormone and Catecholamine Release
… (GABA) systems to produce these alterations in catecholamine transmission and gonadotropin secretion. Radioimmunoassays were utilized to determine plasma LH and median eminence LHRH, and hypothalamic catecholamine concentrations were measured by radioenzymatic assay.</p> <p>The first two studies …
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Sex Differences in Catecholamine Release From Brain Tissue in Vitro
… in vitro release rate (pg/mg/min) of endogenous catecholamines (CA) from rat brain tissue. This system was employed to measure CA release from 2 brain areas, the mediobasal hypothalamus (MBH) and the striatum. The K('+)-stimulate
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Investigating the effects of enhanced catecholamine stimulation in stem cell-derived cardiomyocytes
… stimulation of β-adrenergic receptors by catecholamines via mechanisms that are not yet clear but proposed to involve altered signalling of molecules such as stress-response growth factors. One such growth factor is the transforming growth factor beta 1 (TGF-β1) which plays a pivotal role …
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Behavioural assays of the effects of antidepressant drug treatment on the functioning of catecholamine systems
The effects of antidepressant drugs on central beta-adrenergic and dopaminergic receptor function were investigated using the anorexic effects of low doses of amphetamine and apomorphine as assays of beta-adrenergic function and presynaptic dopamine function respectively. Anorexia was typically …
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Studies on the Uptake of the Catecholamine Dopamine in the Pedal Ganglionof Quadrula Pustulosa (Pelecypoda, Mollusca)
Made available in DSpace on 2015-05-14T14:57:10Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7405644.PDF: 3573361 bytes, checksum: 5240854b5b21ad7c980a25657f963098 (MD5) Previous issue date: 1973
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Effect of antidepressants and adolescent stress on catecholamine transmission in the rat bed nucleus of stria terminalis (BNST): a microdialysis study
… on several cortico-limbic areas. Abnormal catecholamine transmission in the BNST evoked by chronic stress exposition at peri-adolescent age may be interpreted as relevant neurochemical marker at the onset of adolescent or adult depression. BNST is richly innervated by monoamines and sends …
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The influence of catecholamines on energy metabolism beef colour and tenderness in three commercial beef breeds
… are historically more docile had higher urinary catecholamine concentrations per se. By quantifying the relationship between catecholamines and animal temperament in cattle, selection of animals with a more favourable catecholamine profile, could enhance the ease of handling slaughter animals and …
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Sympathetic Innervation of the Rat Adrenal Cortex and Its Effects on the Compensatory Adrenal Cortical Growth Response to Unilateral Adrenalectomy (Catecholamine, Endocrine, Splanchnic Nerve, Cell Proliferation)
… that rat adrenal cortex is innervated by catecholaminergic nerve fibers which enter the adrenal in arterial plexuses and distribute among zona glomerulosa cells. Ultrastructurally, axonal varicosities containing small (30-60 nm) dense-cored vesicles abut on glomerulosa cells and blood …
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The psychopharmacogenetics of ethanol and its relation to brain catecholamines
… have been demonstrated between alcohol and brain catecholamines. The evidence is considered under five areas of study; 1.) the effects of ethanol on brain catecholamine levels and turnover; 2.) ethanol’s action on brain cyclic 3′, 5′-adenosine monophosphate; 3.) the correlation between alcohol …
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Pheochromocytoma-induced cardiomyopathy : a model of synergistic effects of multifactorial tumor secretions
… action. We examined this paradigm by comparing catecholamine-infusion induced cardiomyopathy with the organ disease observed by catecholamine-secreting pheochromocytoma cells. Pheochromocytomas are widely believed to induce cardiomyopathy via hypersecretion of catecholamines including …
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The effects of illness on urinary catecholamines and their metabolites in dogs
Background: Urinary catecholamines and metanephrines have been proposed as a diagnostic tool for identifying canine pheochromocytomas, but the effects of critical illness on urine concentrations of catecholamines and metanephrines is currently unknown. Objectives: To examine the effects of illness …
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A study of the effects of oxypertine on monoaminergic pathways in rat brain using a new HPLC/ECD method.
… A computer programme for the analysis of catecholamine turnover rates and times was developed. The programme includes the calculations required for the calculation of the SEM's for turnover rate and time. These differ from previous calculations, as the mathematical assumption on which the …
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