Interaction of dopamine, methyldopa and reserpine in the sympatho-adrenal system in essential hypertension. 1976

K Abe, and H Aoyagi, and M Yasujima, and S Miyazaki, and T Kusaka, and M Seino, and Y Otsuka, and N Irokawa, and S Chiba, and Y Sakurai, and K Saito, and K Yoshinaga

1. The interactions of dopamine, reserpine and methyldopa on blood pressure of normal subjects and of those with essential hypertension were examined. 2. When biosynthesis of noradrenaline from dopamine was blocked by reserpine, dopamine induced a prominent depressor effect in essential hypertension. 3. The long-term treatment with methyldopa induced a marked potentiateion of the pressor action of domapine in hypertension, although no significant pressor response was found in normal subjects. 4. It is suggested that methylnoradrenaline may accumulate in peripheral nerve endings of patients with essential hypertension in comparison with normal subjects, and this accumulated methylnoradrenaline potentiates the pressor response to dopamine in essential hypertension.

UI MeSH Term Description Entries
D006973 Hypertension Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more. Blood Pressure, High,Blood Pressures, High,High Blood Pressure,High Blood Pressures
D008750 Methyldopa An alpha-2 adrenergic agonist that has both central and peripheral nervous system effects. Its primary clinical use is as an antihypertensive agent. Methyldopate,alpha-Methyldopa,Aldomet,Alphamethyldopa,Apo-Methyldopa,Dopamet,Dopegit,Dopegyt,Dopergit,Hydopa,Meldopa,Nu-Medopa,Sembrina,alpha-Methyl-L-Dopa,Apo Methyldopa,Nu Medopa,alpha Methyl L Dopa,alpha Methyldopa
D008771 Nordefrin A norepinephrine derivative used as a vasoconstrictor agent. Methylnorepinephrine,3,4-Dihydroxynorephedrine,4-(2-Amino-1-hydroxypropyl)-1,2-benzenediol,4-(2-Amino-1-hydroxypropyl)-1,2-benzenediol Hydrochloride, (R*,R*)-(+,-)-Isomer,4-(2-Amino-1-hydroxypropyl)-1,2-benzenediol Hydrochloride, (R*,S*)-(+-)-Isomer,4-(2-Amino-1-hydroxypropyl)-1,2-benzenediol Tartrate, (R*,R*), (R*,R*)-Isomer,4-(2-Amino-1-hydroxypropyl)-1,2-benzenediol Tartrate, (R*,S*), (R*,R*)-Isomer,4-(2-Amino-1-hydroxypropyl)-1,2-benzenediol, (R*,R*)-Isomer,4-(2-Amino-1-hydroxypropyl)-1,2-benzenediol, (R*,S*)-Isomer,Cobefrine,Corbadrine,Levonordefrin,Neo-Cobefrin,Nordefrin Hydrochloride,Nordefrin Hydrochloride, (R*,R*)-(+,-)-Isomer,Nordefrin Hydrochloride, (R*,S*)-(+,-)-Isomer,Nordefrin Tartrate, (R*,R*), (R*,R*) Isomer,Nordefrin Tartrate, (R*,S*), (R*,R*) Isomer,Nordefrin, (R*,R*)-Isomer,Nordefrin, (R*,S*)-Isomer,Norephrine,alpha-Methylnoradrenaline,alpha-Methylnorepinephrine,3,4 Dihydroxynorephedrine,Hydrochloride, Nordefrin,Neo Cobefrin,NeoCobefrin,alpha Methylnoradrenaline,alpha Methylnorepinephrine
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D012110 Reserpine An alkaloid found in the roots of Rauwolfia serpentina and R. vomitoria. Reserpine inhibits the uptake of norepinephrine into storage vesicles resulting in depletion of catecholamines and serotonin from central and peripheral axon terminals. It has been used as an antihypertensive and an antipsychotic as well as a research tool, but its adverse effects limit its clinical use. Raunervil,Raupasil,Rausedil,Rausedyl,Serpasil,Serpivite,V-Serp,V Serp
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
D004305 Dose-Response Relationship, Drug The relationship between the dose of an administered drug and the response of the organism to the drug. Dose Response Relationship, Drug,Dose-Response Relationships, Drug,Drug Dose-Response Relationship,Drug Dose-Response Relationships,Relationship, Drug Dose-Response,Relationships, Drug Dose-Response
D004357 Drug Synergism The action of a drug in promoting or enhancing the effectiveness of another drug. Drug Potentiation,Drug Augmentation,Augmentation, Drug,Augmentations, Drug,Drug Augmentations,Drug Potentiations,Drug Synergisms,Potentiation, Drug,Potentiations, Drug,Synergism, Drug,Synergisms, Drug
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults

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