Hormones that are released by the adrenal glands in response to stress.
A group of biogenic amines derived from the amino acid tyrosine that includes the neurotransmitters dopamine, epinephrine, and norepinephrine, which exert an important influence on peripheral nervous system and central nervous system (CNS) activity.
A hormone that is a neurotransmitter, released under conditions of stress, includes epinephrine and norepinephrine.
Hormones (such as adrenalin) that are amino derivatives of a base structure known as catechol. Catecholamines are released into the bloodstream by exercise, and act as natural tranquilizers.
A class of biochemical compounds including the neurotransmitters dopamine, norepinephrine, and epinephrine.
The hormones adrenaline and noradrenaline which are released by the adrenal glands.
Neurotransmitters (epinephrine, dopamine, and norepinephrine) which are produced in the adrenal medulla from tyrosine. These hormones are instrumental in orchestrating the “fight or flight” response to stress conditions.
Amines such as epinephrine and norepinephrine that have sympathomimetic activity concerned with nerve transmission, vascular tone, and other metabolic activities.
A group of chemically similar compounds that are important in the modulation of cardiovascular activity and many other physiologic functions. Common catecholamines include epinephrine, norepinephrine, and dopamine.
Any of a group of chemicals, including epinephrine, dopamine, and norepinephrine, produced in the medulla of the adrenal gland and also manufactured synthetically for use as drugs. They function in the body’s response to stress and affect many physiological and metabolic activities (e.g., heartbeat, nerve responses, muscle activity). Both norepinephrine and dopamine act as neurotransmitters.
Compounds, such as adrenaline and noradrenaline, produced by the medulla (central portion) of the adrenal glands. Catecholamines may be elevated after ingestion of coffee, bananas, and certain drugs, and in patients with pheochromocytoma, a tumor of the adrenal gland.
A group of physiologically important substances, including epinephrine, norepinephrine, and dopamine, with different roles (mainly as neurotransmitters) in the functioning of the sympathetic and central nervous systems. Chemically, all contain a benzene ring with adjacent hydroxyl groups (catechol) and an amine group on a side chain.
Substances produced in the body from the dietary amino acids, phenylalanine and tyrosine. They include adrenaline, noradrenaline and dopamine, which have varying functions, usually as neurotransmitters, in the sympathetic and central nervous systems. Their chemical structure is based on a benzene ring with hydroxyl and amine side-chains.
One of many biologically active amines, including metanephrine, dopamine, epinephrine, and norepinephrine, derived from the amino acid tyrosine. They have a marked effect on the nervous and cardiovascular systems, metabolic rate, temperature, and smooth muscle.
Catecholamines are powerful adrenaline like chemicals pumped into the bloodstream during stressful situations. These stress chemicals are damaging to the cardiovascular system.
Hormones that affect the cardiovascular system such as epinephrine and norepinephrine.
Various hormones and neurotransmitters, such as dopamine, epinephrine, and norepinephrine, play crucial roles in physiological processes.