Dopamine

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Dopamine
A Wisdom Archive on Dopamine

Dopamine A selection of articles related to Dopamine

We recommend this article: Dopamine - 1, and also this: Dopamine - 2.

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dopamine, Dopamine, Dopamine - Biochemistry, Dopamine - Dopamine and psychosis, Dopamine - Functions of Dopamine in the Brain, Dopamine - Major Dopamine Pathways, Dopamine - Therapeutic use, Dopamine - Role in Cognition and Frontal Cortex Function, Dopamine - Role in Movement, Dopamine - Role in Pleasure and Motivation, Addiction, Amphetamine, Antipsychotic, Catecholamine, Catechol-O-methyl transferase, Cocaine, Dopamine hypothesis of schizophrenia, Methylphenidate, Neurotransmitter, Parkinson's disease, Schizophrenia

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ARTICLES RELATED TO Dopamine

Dopamine: Encyclopedia II - Dopamine - Dopamine and psychosis

Disruption to the dopamine system has also been strongly linked to psychosis and schizophrenia. Dopamine neurons in the mesolimbic pathway are particularly associated with these conditions. This is partly due to the discovery of a class of drugs called the phenothiazines (which block D2 dopamine receptors) that can reduce psychotic symptoms, and partly due to the finding that drugs such as amphetamine and cocaine (which are known to greatly increase dopamine levels) can cause psychosis. Because of this, most modern antipsychotic m ...

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Dopamine: Encyclopedia - Antidopaminergic

Antidopaminergic is a term for a drug that prevents or counteracts the effects of dopamine. See also. Dopamine antagonist ...

Dopamine: Encyclopedia - Catechol-O-methyl transferase

Catechol-O-methyl transferase (COMT) (EC 2.1.1.6) is an enzyme first discovered by biochemist Julius Axelrod. COMT is the name given to the gene which codes for this enzyme. The O in the name stands for the ortho position of the methyl group. Catechol-O-methyl transferase is involved in the breakdown of the catecholamine neurotransmitters, dopamine, epinephrine and norepinephrine. The enzyme introduces a methyl group t ...

Dopamine: Encyclopedia - Amphetamine psychosis

Amphetamine psychosis is a form of psychosis which can result from amphetamine or methamphetamine use. Typically it appears after large doses or chronic use, although in rare cases some people may become psychotic after relatively small doses. Other chemicals or drugs which similarly increase dopamine function (such as cocaine and L-DOPA) can produce similar psychotic states. Because of this, the term stimulant psychosis is sometimes used in preference. Amphetamine psychosis - Overview. Amphetamine p ...

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Amphetamine psychosis - Overview

Dopamine: Encyclopedia - Carbidopa

Carbidopa (MK-486) is a drug given to people with Parkinson's disease in order to inhibit peripheral metabolism of levodopa. It inhibits aromatic-L-amino-acid decarboxylase (DDC), an enzyme important in the biosynthesis of L-tryptamine to 5-HT and in the biosynthesis of L-DOPA to Dopamine (DA). Along with carbidopa, other DDC inhibitors are benserazide (Ro-4-4602), difluromethyldopa, and a-methyldopa. Used in tandem with levodopa (l-dopa, a dopamine precurser converted in the body to dopamine), it increases the plasma half life of levodopa from 50 minutes to 1 1/2 hours. See also - http://www. ...

Dopamine: Encyclopedia - Akinesia

Akinesia is the inability to initiate movement, due to problems with selecting and activating motor programs in the brain. It is a common consequence of Parkinson's disease causing dopamine loss in the direct pathway of movement. See also. Akinetic mutism ...

Read more here: » Akinesia: Encyclopedia - Akinesia

Dopamine: Encyclopedia - Bromocriptine

Image:Bromocriptine.png Bromocriptine G02CB01 N04BC01 Bromocriptine is an ergoline derivative dopamine agonist that is used in the treatment of pituitary tumors and Parkinson's disease. Amenorrhea, female infertility, galactorrhea, hypogonadism, and acromegaly may all be caused by pituitary problems, and therefore, these problems may be treated by this drug. It is also used following stillbirth to suppress the mother's produc ...

Dopamine: Encyclopedia - 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 and chemotherapy directed against cancer. Antiemetics include: 5-Hydroxytryptamine antagonists Dolasetron Granisetron Ondansetron Tropisetron Dopamine antagonists Domperidone Droperidol, Haloperidol, Chlorpromazine metoclopramide Antihistamines ( ...

Dopamine: Encyclopedia - Arcuate nucleus

The arcuate nucleus is a collection of neurons present in the hypothalamus. Some arcuate neurons contain dopamine and inhibit the release of prolactin by the pituitary. Other neurons contain neuropeptide Y (NPY) and affect hunger. When activated, these neurons can produce ravenous eating. These neurons are probably regulated by glucose, insulin, and leptin. Thus, arcuate neurons are responding to information on whether the body h ...

Dopamine: Encyclopedia - Cabergoline

Cabergoline (name brands Dostinex and Cabaser) is a dopamine receptor agonist and uncategorized drug which suppresses the production of prolactin in pituitary gland. It is an ergot-derivative. It is used to prevent the production of excess prolactin in the case of certain pituitary tumors, and in some countries (including the United States) has been approved as a therapy for Parkinson's Disease. The normal dosage for prolactinoma is 0.5 mg twice we ...

Dopamine: Encyclopedia - Catecholamine

Catecholamines are chemical compounds derived from the amino acid tyrosine that act as hormones or neurotransmitters. They are examples of phenethylamines. Catecholamines are soluble, and so they can circulate dissolved in blood. The most abundant catecholamines are epinephrine (adrenaline), norepinephrine (noradrenaline) and dopamine. They are produced mainly from the adrenal medulla and the postganglionic fibers of the sympathetic nervous system. Adrenaline acts as a neurotransmitter in the central nervous system and a ...

Dopamine: Encyclopedia - Arvid Carlsson

Arvid Carlsson (b. January 25, 1923) is a Swedish scientist who is best known for his work with the neurotransmitter dopamine and its effects in Parkinson's disease. Carlsson won the Nobel Prize in Physiology or Medicine in 2000 along with co-recipients Eric Kandel and Paul Greengard. Carlsson was born in Uppsala, Sweden, son of Gottfrid Carlsson, historian and later professor of history at the University of Lund, where he began his medical education in 1941. Although Sweden was neutral during World War II, Carlsson's education ...

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Arvid Carlsson - External link

Dopamine: Encyclopedia - Psychosis

Psychosis is a generic psychiatric term for mental states in which the components of rational thought and perception are severely impaired. Persons experiencing a psychosis may experience hallucinations, hold delusional beliefs (e.g. paranoid delusions), demonstrate personality changes and exhibit disorganized thinking (see thought disorder). This is often accompanied by lack of insight into the unusual or bizarre nature of such behavior, difficulties with social interaction and impairments in carrying out the activities of daily livi ...

Including:

Psychosis - Medical understanding of psychosis

Dopamine: Encyclopedia - Benserazide

Benserazide is an inhibitor of DOPA decarboxylase that does not enter the central nervous system. It is often given with L-DOPA (levodopa, 3,4-dihydroxy-L-phenylalanine) in the treatment of Parkinson's disease to prevent the conversion of L-DOPA to dopamine in the periphery, thereby increasing the amount that reaches the central nervous system and reducing the required dose. It has no antiparkinson actions when given alone. Other related archivesParkinson's disease, central nervous system, do

Dopamine: Encyclopedia - Withdrawal

When something that generates a physical or a psychological dependency — a behavior or the use of a substance — is stopped or withdrawn from, some type of withdrawal symptoms almost always follow. Depending on the cause, these symptoms can appear within a few hours (nicotine) or over several days (alcoholism and most behavioral addictions). Withdrawal - Overview. One of the primary agents in withdrawal is the brain chemical dopamine. When humans engage in a pleasurable activity, one physiological ...

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Dopamine: Encyclopedia - Chorea disease

Chorea (also known as St. Vitus dance) is an abnormal voluntary movement disorder, one of a group of neurological disorders called dyskinesias, which are caused by overactivity of the neurotransmitter dopamine in the areas of the brain that control movement. Chorea is characterized by brief, irregular contractions that are not repetitive or rhythmic, but appear to flow from one muscle to the next. Chorea often occurs with athetosis, which adds twisting and writhing movements. Chorea is a primary feature of Huntington's disease, a prog ...