agonist
Noun
Meaning
One who contends for the prize in public games.
Source: Webster's dictionarySynonyms
Antonyms
Hypernyms
Hyponyms
Phrases with the word
Examples
when bending the elbow the biceps are the agonist
Adrenergic receptors, again, play a key role in this symptom, as altered norepinephrine (an adrenoceptor agonist) neurotransmission contribute to the etiology of depression.
An example of a receptor agonist is Valium, a benzodiazepine that mimics effects of the endogenous neurotransmitter gamma-aminobutyric acid (GABA) to decrease anxiety.
A competitive antagonist competes with an agonist for binding to the receptor.
An irreversible antagonist binds so strongly to the receptor as to render the receptor unavailable for binding to the agonist.
As the concentration of antagonist increases, the binding of the agonist is progressively inhibited, resulting in a decrease in the physiological response.