8-OH-DPAT
Encyclopedia
8-OH-DPAT is a research chemical of the aminotetralin chemical class which was developed in the 1980s and has been widely used to study the function of the 5-HT1A receptor
. It was one of the first major 5-HT1A receptor agonist
s to be discovered.
Originally believed to be selective
for the 5-HT1A receptor, 8-OH-DPAT was later found to act as a 5-HT7 receptor
agonist and serotonin reuptake inhibitor/releasing agent
as well.
In animal studies, 8-OH-DPAT has been shown to possess antidepressant
, anxiolytic
, serenic
, anorectic
, antiemetic
, hypothermic
, hypotensive
, bradycardic
, hyperventilative
, and analgesic
effects.
5-HT1A receptor
The 5-HT1A receptor is a subtype of 5-HT receptor that binds the endogenous neurotransmitter serotonin . It is a G protein-coupled receptor that is coupled to Gi/Go and mediates inhibitory neurotransmission...
. It was one of the first major 5-HT1A receptor agonist
Agonist
An agonist is a chemical that binds to a receptor of a cell and triggers a response by that cell. Agonists often mimic the action of a naturally occurring substance...
s to be discovered.
Originally believed to be selective
Binding selectivity
Binding selectivity refers to the differing affinities with which different ligands bind to a substrate forming a complex. A selectivity coefficient is the equilibrium constant for the reaction of displacement by one ligand of another ligand in a complex with the substrate...
for the 5-HT1A receptor, 8-OH-DPAT was later found to act as a 5-HT7 receptor
5-HT7 receptor
The 5-HT7 receptor is a member of the GPCR superfamily of cell surface receptors and is activated by the neurotransmitter serotonin The 5-HT7 receptor is coupled to Gs and is expressed in a variety of human tissues, particularly in the brain, the gastrointestinal tract, and in various...
agonist and serotonin reuptake inhibitor/releasing agent
Serotonin releasing agent
A serotonin releasing agent is a type of drug which induces the release of serotonin from the pre-synaptic neuron into the synapse...
as well.
In animal studies, 8-OH-DPAT has been shown to possess antidepressant
Antidepressant
An antidepressant is a psychiatric medication used to alleviate mood disorders, such as major depression and dysthymia and anxiety disorders such as social anxiety disorder. According to Gelder, Mayou &*Geddes people with a depressive illness will experience a therapeutic effect to their mood;...
, anxiolytic
Anxiolytic
An anxiolytic is a drug used for the treatment of anxiety, and its related psychological and physical symptoms...
, serenic
Serenic
A serenic, or antiaggressive agent, is a type of drug which inhibits social feelings of irritability, aggression, and anger. Many commonly induce the opposite of effects as well, including empathy, compassion, and affection....
, anorectic
Anorectic
An anorectic or anorexic , also known as anorexigenic or appetite suppressant, is a dietary supplement and/or drug which reduces appetite, food consumption, and as a result, causes weight loss to occur.-List of anorectics:Numerous pharmaceutical compounds are marketed as appetite suppressants.The...
, antiemetic
Antiemetic
An antiemetic is a drug that is effective against vomiting and nausea. Antiemetics are typically used to treat motion sickness and the side effects of opioid analgesics, general anaesthetics, and chemotherapy directed against cancer....
, hypothermic
Hypothermia
Hypothermia is a condition in which core temperature drops below the required temperature for normal metabolism and body functions which is defined as . Body temperature is usually maintained near a constant level of through biologic homeostasis or thermoregulation...
, hypotensive
Hypotension
In physiology and medicine, hypotension is abnormally low blood pressure, especially in the arteries of the systemic circulation. It is best understood as a physiologic state, rather than a disease. It is often associated with shock, though not necessarily indicative of it. Hypotension is the...
, bradycardic
Bradycardia
Bradycardia , in the context of adult medicine, is the resting heart rate of under 60 beats per minute, though it is seldom symptomatic until the rate drops below 50 beat/min. It may cause cardiac arrest in some patients, because those with bradycardia may not be pumping enough oxygen to their heart...
, hyperventilative
Hyperventilation
Hyperventilation or overbreathing is the state of breathing faster or deeper than normal, causing excessive expulsion of circulating carbon dioxide. It can result from a psychological state such as a panic attack, from a physiological condition such as metabolic acidosis, can be brought about by...
, and analgesic
Analgesic
An analgesic is any member of the group of drugs used to relieve pain . The word analgesic derives from Greek an- and algos ....
effects.