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Catecholamines and anxiety [PDF]

Acta Psychiatrica Scandinavica, 1982
Plasma catecholamines and heart rate were determined in drug‐free groups of anxious patients and normal controls before and 20 min after intramuscular injection of 0.01 mg/kg of 1/1000 diluted epinephrine. Levels of anxiety after the injection were determined via the State Anxiety Scale of State Trait Anxiety Inventory.
David J. Francis, Roy J. Mathew, B. T. Ho, Maxine L. Weinman, D. L. Taylor   +4 more
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Catecholamines and their metabolites

Journal of Chromatography B: Biomedical Sciences and Applications, 1988
The research on biosynthesis, physiology, pharmacology, regulation and degradation of catecholamines has continuously increased for more than 50 years. This is not unexpected because of the fact that catecholamines are involved in so many life processes such as nerve conduction, blood circulation and hormone regulations in health and disease.
David S. Goldstein, Bertil K»gedal
openaire   +3 more sources

Simultaneous determination of catecholamines and their metabolites related to Alzheimer's disease in human urine

Journal of Separation Science, 2011
A simple and specific high-performance liquid chromatography method coupled with fluorescence detection (HPLC-FL) has been developed for the simultaneous determination of L-3,4-dihydroxyphenylalanine, norepinephrine, dopamine, epinephrine and 3,4 ...
Lili Liu, Qing Li
exaly   +2 more sources

Peripheral and central effects of circulating catecholamines.

Comprehensive Physiology, 2014
Physical challenges, emotional arousal, increased physical activity, or changes in the environment can evoke stress, requiring altered activity of visceral organs, glands, and smooth muscles.
A. Tank, Dona Lee Wong
semanticscholar   +1 more source

Bereavement and catecholamines

Journal of Psychosomatic Research, 1986
Urinary catecholamine output was studied in 59 middle-aged and elderly persons who were either acutely bereaved (n = 39) or threatened with the loss of a spouse (n = 20). The study was done with the hypothesis that urinary catecholamine output would be elevated among the bereaved subjects both in comparison to norms in the literature for non-stressed ...
Stanislav V. Kasl, Victor Wahby, Thomas R. Kosten, Adrian M. Ostfeld, John W. Mason, Selby C. Jacobs   +5 more
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Catecholamines and convulsions

Brain Research, 1979
Severe depletion of brain noradrenaline and separately of brain dopamine was induced in rats by intracerebral injection of the selective neurotoxin 6-hydroxydopamine, and the susceptibility of the treated animals to various seizure-inducing manipulations was examined.
Stephen T. Mason, Michael E. Corcoran
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High-throughput and sensitive quantitation of plasma catecholamines by ultraperformance liquid chromatography-tandem mass spectrometry using a solid phase microwell extraction plate.

Analytical Chemistry, 2013
Plasma catecholamines provide a reliable biomarker of sympathetic activity. The low circulating concentrations of catecholamines and analytical interferences require tedious sample preparation and long chromatographic runs to ensure their accurate ...
M. Dunand, Danilo Gubian, M. Stauffer, K. Abid, E. Grouzmann   +4 more
semanticscholar   +1 more source

Improved technique for the fluorimetric estimation of catecholamines.

Acta Physiologica Scandinavica, 1961
Euler U. S. v. and F. Lishajko. Improved technique for the fluorimetric estimation of catecholamines. By the addition of small amounts of ethylene diamine (EDA) to the alkali-ascorbic acid mixture used in the trihydroxyindole (THI) method the ...
U. S. Euler, F. Lishajko
semanticscholar   +1 more source

Catecholamines and Catecholamine Metabolites

2020
Measurement of catecholamines and their metabolites may be indicated when evaluating patients with hypertension, dizziness, syncope, or “spells” with some combination of headache, abdominal pain, sweating, tachycardia or palpitations, anxiety, pallor or flushing, and hypertension.
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Effects of caffeine on plasma renin activity, catecholamines and blood pressure.

New England Journal of Medicine, 1978
Using a double-blind, randomized, cross-over protocol, we studied the effect of a single dose of oral caffeine on plasma renin activity, catecholamines and cardiovascular control in nine healthy, young, non-coffee drinkers maintained in sodium balance ...
D. Robertson, J. Frölich, R. K. Carr, J. Watson, J. Hollifield, D. Shand, J. Oates   +6 more
semanticscholar   +1 more source