Dopaminergic pathway

The **dopaminergic pathway** refers to a set of neural tracts in the brain where neurons use dopamine as their primary neurotransmitter. There are four major dopaminergic pathways in the mammalian brain: - **Mesolimbic pathway:** Involved in reward and motivation. - **Mesocortical pathway:** Associated with cognition and executive function. - **Nigrostriatal pathway:** Regulates movement and is implicated in motor control; degeneration here is a hallmark of Parkinson’s disease. - **Tuberoinfundibular pathway:** Connects the hypothalamus to the pituitary gland and regulates hormone secretion, particularly prolactin[6]. These are not single molecules or receptors but rather anatomical circuits composed of many neurons expressing various dopamine receptors. The term "dopaminergic pathway" does not refer to a specific molecular target such as a receptor or enzyme but instead describes an anatomical/functional system within the central nervous system[6]. Therefore, it is not considered a therapeutic target itself; rather, its components—such as dopamine receptors (D1–D5)—are molecular targets for drugs used to treat diseases like Parkinson’s disease and schizophrenia[2][7]. Because "dopaminergic pathway" is an anatomical/functional concept rather than a discrete molecule or protein target, it should be flagged as incorrect for structured drug-target databases that require specific molecular entities.

Other names

Dopaminergic systemdopamine pathwayscentral dopaminergic pathways