Dopamine is a hormone and neurotransmitter occurring in a wide variety of animals, including both vertebrates and invertebrates. In the brain, this phenethylamine functions as a neurotransmitter, activating the five types of dopamine receptors — D1, D2, D3, D4 and D5, and their variants. Dopamine is produced in several areas of the brain, including the substantia nigra and the ventral tegmental area. Dopamine is also a neurohormone released by the hypothalamus. Its main function as a hormone is to inhibit the release of prolactin from the anterior lobe of the pituitary. Dopamine has many functions in the brain, including important roles in behavior and cognition, motor activity, motivation and reward, inhibition of prolactin production (involved in lactation), sleep, mood, attention, and learning. Dopaminergic neurons (i.e., neurons whose primary neurotransmitter is dopamine) are present chiefly in the ventral tegmental area (VTA) of the midbrain, substantia nigra pars compacta, and arcuate nucleus of the hypothalamus.
Dopamine is a neurotransmitter involved in everything and the receptors have been a longstanding target for treating disorders like Parkinson's disease.
The neurotransmitter dopamine plays a vital role in everything, starting from motor control to higher cognitive functions, arousal, motivation, sexual gratification, and reinforcement.
Dopamine, a chemical that sends messages between different parts of the brain and body, plays a key role in a variety of diseases and behaviors by interacting with receptors on cells.
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