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Topics related to "catecholamine"

catecholamine
catecholamine , any of several compounds occurring naturally in the body that serve as hormones or as neurotransmitters in the sympathetic nervous system . The catecholamines include such compounds as epinephrine , or adrenaline, norepinephrine, and dopamine. They resemble one another chemical... Read more
sympathomimetic drug
sympathomimetic drug , any of a group of substances whose actions resemble the response of stimulated sympathetic nerves (see nervous system ). These drugs include epinephrine and other catecholamines that are naturally produced in the body, and chemically similar substances such as ephedrine ... Read more
epinephrine
epinephrine , hormone important to the body's metabolism, also known as adrenaline. Epinephrine, a catecholamine , together with norepinephrine , is secreted principally by the medulla of the adrenal gland . Heightened secretion caused perhaps by fear or anger, will result in increased heart ra... Read more
l-dopa
l-dopa , drug used to alleviate some of the symptoms of Parkinson's disease , particularly trembling, rigidity, and slow movements; the drug is also called levodopa. Parkinson's disease results when the concentration of dopamine in the brain is depleted (see catecholamine ). Medical administration... Read more
norepinephrine
norepinephrine , a neurotransmitter in the catecholamine family that mediates chemical communication in the sympathetic nervous system, a branch of the autonomic nervous system. Like other neurotransmitters, it is released at synaptic nerve endings to transmit the signal from a nerve cell to oth... Read more
psychopharmacology
psychopharmacology , in its broadest sense, the study of all pharmacological agents that affect mental and emotional functions. The term is usually applied more specifically to the study and synthesis of drugs used in the control of psychiatric illnesses, namely the antipsychotic, antianxiety, antid... Read more
stimulant
stimulant any substance that causes an increase in activity in various parts of the nervous system or directly increases muscle activity. Cerebral, or psychic, stimulants act on the central nervous system and provide a temporary sense of alertness and well-being as well as relief from fatigue. Dr... Read more
Dopamine
Dopamine Dopamine belongs to a family of biological compounds called catecholamines (see Figure 1). Dopamine is synthesized from the compound L-dihydroxyphenylalanine (L-dopa) via the enzyme dopa decarboxylase. In noradrenergic neurons and in the adrenal glands, dopamine is the precursor for the ... Read more
Stress
Stress Definitions Stress is a term that refers to the sum of the physical, mental, and emotional strains or tensions on a person. Feelings of stress in humans result from interactions between persons and their environment that are perceived as straining or exceeding their adaptive capacities a... Read more

Encyclopedia entries related to "catecholamine"

catecholamine
Book article from: The Columbia Encyclopedia, Sixth Edition catecholamine , any of several compounds occurring naturally in the body that serve as hormones or as neurotransmitters in the sympathetic nervous...
Catecholamines Tests
Encyclopedia entry from: Gale Encyclopedia of Medicine, 3rd ed. ...the type of tumor causing elevated catecholamine levels. Description The catecholamines...for the patient, possibly increasing catecholamine levels in the blood, a plastic or...24-hour urine test. In addition, catecholamine secretion from a tumor may not be steady...
Dopamine
Encyclopedia entry from: Encyclopedia of Drugs, Alcohol, and Addictive Behavior DOPAMINE Dopamine (DA) is a catecholamine according to its chemical structure and a neurotransmitter...or reward. DA is also found in minute amounts in other catecholamine neurons as a precursor to norepinephrine. The DA transporter...
laughter and humour
Book article from: The Oxford Companion to the Body ...tachycardia, changes in breathing pattern, and an increase in catecholamine production. Hearty laughter increases heart rate, blood...identifiable pathology of the larynx. Finally, the increased catecholamine levels associated with laughter may be responsible for beneficial...
Neurotransmitter
Encyclopedia entry from: The Gale Encyclopedia of Science ...influenced by the target receptor cells. Norepinephrine, a catecholamine, is a biogenic amine derived from the amino acid tyrosine...in the cerebrum, cerebellum, and spinal cord. Another catecholamine found in the brain is dopamine. It appears to be important...
epinephrine
Book article from: The Columbia Encyclopedia, Sixth Edition epinephrine , hormone important to the body's metabolism, also known as adrenaline. Epinephrine, a catecholamine , together with norepinephrine , is secreted principally by the medulla of the adrenal gland . Heightened secretion caused perhaps...
dopamine
Book article from: The Columbia Encyclopedia, Sixth Edition dopamine , one of the intermediate substances in the biosynthesis of epinephrine and norepinephrine. See catecholamine .
Causes of Substance Abuse
Encyclopedia entry from: Encyclopedia of Drugs, Alcohol, and Addictive Behavior ...mechanism underlying the addiction-related effects of drugs of abuse. COCAINE AND OTHER STIMULANTS Cocaine is an indirect catecholamine agonist that acts by blocking the reuptake of monoamines, including Dopamine (DA), Norepinephrine (NE), and serotonin...
Dom
Encyclopedia entry from: Encyclopedia of Drugs, Alcohol, and Addictive Behavior ...substances based on molecular additions to phenethylamine. This is a group of compounds that have structural similarities to the catecholamine-type Neurotransmitters, such as Norepinephrine, epinephrine, and Dopamine. While our bodies make these catecholamines...
norepinephrine
Book article from: The Columbia Encyclopedia, Sixth Edition norepinephrine , a neurotransmitter in the catecholamine family that mediates chemical communication in the sympathetic nervous system, a branch of the autonomic nervous system. Like...

Dictionary entries related to "catecholamine"

catecholamine
Book article from: A Dictionary of Biology catecholamine Any of a class of amines that possess a catechol (C 6 H 4 (OH) 2 ) ring. Including dopamine , adrenaline , and noradrenaline , they function as neurotransmitters and/or hormones.
noradrenalin
Book article from: A Dictionary of Zoology noradrenalin ( norepinephrine ) A catecholamine hormone, secreted by the adrenal medulla, which has effects similar to, but less pronounced than, those of adrenalin . It elicits...
dopamine
Book article from: A Dictionary of Nursing dopamine ( doh -pă-meen) n. a catecholamine derived from dopa that functions as a neurotransmitter, acting on specific dopamine receptors and also on adrenergic receptors...
vanillylmandelic acid
Book article from: A Dictionary of Nursing ...man- del -ik) n. a metabolite of catecholamines excreted in abnormal amounts in the urine in conditions of excess catecholamine production, such as phaeochromocytoma. Measurement of VMA levels can be used as a screening test for phaeochromocytoma...
glucagon stimulation test
Book article from: A Dictionary of Nursing ...displaying typically high levels of plasma catecholamines. An intravenous bolus of glucagon is administered and the test is positive when there is a threefold increase in plasma catecholamine levels with a consequent rise in blood pressure.

Related newspaper, magazine, and trade journal articles from HighBeam Research

Tyrosine, Phenylalanine, and Catecholamine Synthesis and Function in the Brain1-3
Magazine article from: The Journal of Nutrition; 6/1/2007; ; 700+ words ; ...brain Tyr concentrations stimulates catecholamine production, an effect exclusive to...brain Tyr concentrations and stimulates catecholamine synthesis. Phe, like Tyr, is a substrate...catalyzing the rate-limiting step in catecholamine synthesis. Tyr is the preferred substrate...
Catecholamine-synthesizing enzymes in carcinoid tumors and pheochromocytomas
Magazine article from: Clinical Chemistry; 4/1/2003; ; 700+ words ; ...these tumors contain specific enzymes for catecholamine synthesis, we aimed to detect catecholamine-synthesizing enzymes [tyrosine hydroxylase...metabolites was found. Conclusions: Catecholamine-synthesizing enzymes are present in...
Perioperative catecholamine use and adverse cardiac outcomes
Magazine article from: Reactions Weekly; 7/19/2008; ; 474 words ; Perioperative catecholamine use in heart surgery may be associated...bypass and were included in the 'catecholamine group'. The remaining 573 patients...included in the control group. In the catecholamine group, 89% of the patients received...
Catecholamine-induced T-wave lability in congenital long QT syndrome: A novel phenomenon associated with syncope and cardiac arrest
Magazine article from: Mayo Clinic Proceedings; 1/1/2003; ; 700+ words ; ...electrocardiograms recorded during catecholamine stress testing with phenylephrine and...LQT1, LQT2, and LQT3 patients during catecholamine provocation and is associated with...LQT2.22 Recently, we showed that catecholamine-provoked (mu)V-TWA occurred...
Estrogen Supplementation Attenuates Glucocorticide and Catecholamine Responses t.
Magazine article from: OB/GYN Clinical Alert; 4/1/1999; 700+ words ; ...Supplementation Attenuates Glucocorticide and Catecholamine Responses to Mental Stress in Perimenopausal...attenuated blood pressure, cortisol, and catecholamine responses to acute psychological challenge...that estradiol reduces cortisol and catecholamine responses to stress. Twelve women...
Estrogen Supplementation Attenuates Glucocorticoid and Catecholamine Responses t.
Magazine article from: Internal Medicine Alert; 4/29/1999; 700+ words ; ...Supplementation Attenuates Glucocorticoid and Catecholamine Responses to Mental Stress in Perimenopausal...attenuated blood pressure, cortisol, and catecholamine responses to acute psychological challenge...that estradiol reduces cortisol and catecholamine responses to stress. Twelve women...
Mechanism of catecholamine resistance in polycystic ovarian syndrome reviewed.
Newspaper article from: Biotech Week; 6/25/2003; 698 words ; ...The mechanisms behind lipolytic catecholamine resistance of subcutaneous fat cells...research from Sweden, "Lipolytic catecholamine resistance in sc fat cells is observed...investigators concluded, "Thus, lipolytic catecholamine resistance of sc adipocytes in PCOS...
Terlipressin infusion in catecholamine-resistant shock
Magazine article from: Anaesthesia and Intensive Care; 10/1/2003; ; 700+ words ; SUMMARY Catecholamine-resistant shock is not uncommon...cardiogenic, terlipressin, vasopressin Catecholamine-resistant shock is common in intensive...resulted in a dramatic decrease in catecholamine requirements. To our knowledge there...
Estrogen Supplementation Attenuates Glucocorticoid and Catecholamine Responses to Mental Stress in Perimenopausal Women.
Magazine article from: Internal Medicine Alert; 4/29/1999; 700+ words ; ...attenuated blood pressure, cortisol, and catecholamine responses to acute psychological challenge...THAT estradiol reduces cortisol and catecholamine responses to stress. Twelve women...mechanisms, including cortisol and catecholamine release. Further, basal endocrine...
Expression of catecholamine-regulated protein 40 increases in some brain regions.
Newspaper article from: Mental Health Weekly Digest; 2/10/2003; 686 words ; ...laboratory have described brain specific catecholamine-regulated proteins, which bind dopamine...from the molecular cloning of a 40 kDa catecholamine-regulated protein (CRP40) revealed...treatment increases expression of a 40 kDa catecholamine-regulated protein in discrete brain...