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Pharmacological characterization of neuronal dopamine receptors in the rat hindquarters, renal and superior mesenteric vascular beds. 1986

A G Dupont, and P Vanderniepen, and R A Lefebvre, and M G Bogaert

The present study was designed to characterize the neuronal dopamine receptors involved in the inhibitory effect of apomorphine on neurogenic vasoconstriction in the isolated autoperfused hindquarters, renal and superior mesenteric vascular beds of the rat. In the three vascular beds, the inhibitory effect of apomorphine on neurogenic vasoconstriction was antagonized by the selective DA2-receptor antagonist domperidone, but not by the selective DA1-receptor antagonist SCH 23390. Local administration of these antagonists had no effect on the perfusion pressure per se or on the pressure response to electrical stimulation of the sympathetic innervation. These results show that the neuronal dopamine receptors present in the rat hindquarters, renal and superior mesenteric vascular beds can be classified as DA2-receptors.

UI MeSH Term Description Entries
D007668 Kidney Body organ that filters blood for the secretion of URINE and that regulates ion concentrations. Kidneys
D008297 Male Males
D008643 Mesentery A layer of the peritoneum which attaches the abdominal viscera to the ABDOMINAL WALL and conveys their blood vessels and nerves. Mesenteries
D011919 Rats, Inbred Strains Genetically identical individuals developed from brother and sister matings which have been carried out for twenty or more generations or by parent x offspring matings carried out with certain restrictions. This also includes animals with a long history of closed colony breeding. August Rats,Inbred Rat Strains,Inbred Strain of Rat,Inbred Strain of Rats,Inbred Strains of Rats,Rat, Inbred Strain,August Rat,Inbred Rat Strain,Inbred Strain Rat,Inbred Strain Rats,Inbred Strains Rat,Inbred Strains Rats,Rat Inbred Strain,Rat Inbred Strains,Rat Strain, Inbred,Rat Strains, Inbred,Rat, August,Rat, Inbred Strains,Rats Inbred Strain,Rats Inbred Strains,Rats, August,Rats, Inbred Strain,Strain Rat, Inbred,Strain Rats, Inbred,Strain, Inbred Rat,Strains, Inbred Rat
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
D005260 Female Females
D006614 Hindlimb Either of two extremities of four-footed non-primate land animals. It usually consists of a FEMUR; TIBIA; and FIBULA; tarsals; METATARSALS; and TOES. (From Storer et al., General Zoology, 6th ed, p73) Hindlimbs
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001058 Apomorphine A derivative of morphine that is a dopamine D2 agonist. It is a powerful emetic and has been used for that effect in acute poisoning. It has also been used in the diagnosis and treatment of parkinsonism, but its adverse effects limit its use. Apokinon,Apomorphin-Teclapharm,Apomorphine Chloride,Apomorphine Hydrochloride,Apomorphine Hydrochloride Anhydrous,Apomorphine Hydrochloride, Anhydrous,Apomorphine Hydrochloride, Hemihydrate,Britaject,Apomorphin Teclapharm
D014661 Vasoconstriction The physiological narrowing of BLOOD VESSELS by contraction of the VASCULAR SMOOTH MUSCLE. Vasoconstrictions

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