Biomaterial Database

Evidence for a widespread dopaminergic innervation of the human cerebral neocortex. 1989

J De Keyser, and G Ebinger, and G Vauquelin

Department of Neurology, Academisch Ziekenhuis, Vrije Universiteit Brussel, Belgium.

The recent finding that D1 dopamine receptors are present in all neocortical areas of the human brain, does not fit in with the generally held view that the mesocortical dopaminergic pathway is restricted to prefrontal areas. We investigated the brains of 3 patients who died with a unilateral infarction in the ventral midbrain, including the substantia nigra and ventral tegmental area. Compared to the intact side, the D1 receptors in frontal, temporal, parietal and occipital cortices and caudate nucleus at the lesioned side were increased by 27-37%, which is consistent with an up-regulation in response to a depletion of dopamine. These data provide evidence for a more widespread dopaminergic innervation of the human neocortex.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D011954	Receptors, Dopamine	Cell-surface proteins that bind dopamine with high affinity and trigger intracellular changes influencing the behavior of cells.	Dopamine Receptors,Dopamine Receptor,Receptor, Dopamine
D002540	Cerebral Cortex	The thin layer of GRAY MATTER on the surface of the CEREBRAL HEMISPHERES that develops from the TELENCEPHALON and folds into gyri and sulci. It reaches its highest development in humans and is responsible for intellectual faculties and higher mental functions.	Allocortex,Archipallium,Cortex Cerebri,Cortical Plate,Paleocortex,Periallocortex,Allocortices,Archipalliums,Cerebral Cortices,Cortex Cerebrus,Cortex, Cerebral,Cortical Plates,Paleocortices,Periallocortices,Plate, Cortical
D004298	Dopamine	One of the catecholamine NEUROTRANSMITTERS in the brain. It is derived from TYROSINE and is the precursor to NOREPINEPHRINE and EPINEPHRINE. Dopamine is a major transmitter in the extrapyramidal system of the brain, and important in regulating movement. A family of receptors (RECEPTORS, DOPAMINE) mediate its action.	Hydroxytyramine,3,4-Dihydroxyphenethylamine,4-(2-Aminoethyl)-1,2-benzenediol,Dopamine Hydrochloride,Intropin,3,4 Dihydroxyphenethylamine,Hydrochloride, Dopamine
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000368	Aged	A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available.	Elderly
D000369	Aged, 80 and over	Persons 80 years of age and older.	Oldest Old
D001552	Benzazepines	Compounds with BENZENE fused to AZEPINES.
D017447	Receptors, Dopamine D1	A subfamily of G-PROTEIN-COUPLED RECEPTORS that bind the neurotransmitter DOPAMINE and modulate its effects. D1-class receptor genes lack INTRONS, and the receptors stimulate ADENYLYL CYCLASES.	Dopamine D1 Receptors,Dopamine-D1 Receptor,D1 Receptors, Dopamine,Dopamine D1 Receptor,Receptor, Dopamine-D1