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Serafim Guimarães was born on 2 May, 1934, is a physician. Discover Serafim Guimarães's Biography, Age, Height, Physical Stats, Dating/Affairs, Family and career updates. Learn How rich is He in this year and how He spends money? Also learn how He earned most of networth at the age of 89 years old?

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Age 90 years old
Zodiac Sign Taurus
Born 2 May 1934
Birthday 2 May
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We recommend you to check the complete list of Famous People born on 2 May. He is a member of famous physician with the age 90 years old group.

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Serafim Guimarães Net Worth

His net worth has been growing significantly in 2022-2023. So, how much is Serafim Guimarães worth at the age of 90 years old? Serafim Guimarães’s income source is mostly from being a successful physician. He is from . We have estimated Serafim Guimarães's net worth , money, salary, income, and assets.

Net Worth in 2023 $1 Million - $5 Million
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Source of Income physician

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Timeline

1983

From 1983 to 1984 Guimarães was dean of the Medical Faculty of Porto, from 1984 to 1985 vice-rector of the University, from 1986 to 1988 founding member of the Federation of European Pharmacological Societies (EPHAR), from 1995 to 1998 president of the Sociedade Portuguesa de Farmacologia. From 1969 to 2000 he served as medical director of the spa of Monfortinho in the municipality Idanha-a-Nova, from 1972 to 1995 as counsellor of the pharmaceutical company Bial.

1982

One pervading difference was that inhibitors of COMT enhanced the effect of isoprenaline at β-adrenoceptors (and the ensuing blood vessel relaxation) but not the effect of noradrenaline at α-adrenoceptors (and the ensuing blood vessel contraction). Conversely inhibitors of the transport of noradrenaline into presynaptic axon terminals – cocaine being a prototype inhibitor – enhanced the effect of noradrenaline at α-, but nor the effect of isoprenaline at β-adrenoceptors. Guimarães and his coworkers concluded that the density of COMT was greater in der „biophase“ of the β-adrenoceptors than in the biophase of the α-adrenoceptors. Conversely, the density of the cocaine-sensitive transporters should be greater in the biophase of the α-adrenoceptors than the β-adrenoceptors. The hypothesis was supported by two articles in Naunyn-Schmiedeberg’s Archives of Pharmacology. In 1982, Guimarães wrote in Trends in Pharmacological Sciences: „In vascular tissue there are two different biophases for sympathomimetic agents: one for the α-adrenoceptors around the nerve terminals, where the concentration of the agonist available for the α-effect is mainly governed by uptake into these terminals; one for the β-adrenoceptors in the neighbourhood of COMT whose activity is the main factor determining the concentration of the agonist available for the β-effect.“ Rather than assuming a homogeneous distribution, pharmacologists should reckon with a very inhomogeneous distribution of catecholamines in the extracellular space, low in the immediate neighbourhood of „sites of loss“ such as transporters and enzymes, considerably higher at a distance.

1981

A brief communication of 1981 on presynaptic β-autoreceptors became Guimarães' bibliometrically third-successful paper, and his most successful one reporting original research with new observations. Presynaptic β-autoreceptors, when activated, increase the release of the postganglionic sympathetic neurotransmitter noradrenaline and should therefore mediate a positive feedback, preceding release enhancing further release. This, however, had never been found, perhaps because the receptors are β2 and therefore relatively noradrenaline-insensitive. Guimarães and coworkers, once again using veins, enriched sympathetic axon terminals with adrenaline, which is a very strong agonist at β2-adrenoceptors. In this manner they indeed generated a positive feedback: the beta blocker propranolol reduced the release. The authors conclude that the introduction of adrenaline as a false transmitter „revealed the existence of a β-adrenoceptor-mediated positive feedback mechanism in this tissue.“ The interest in the discovery stems from the possibility that it explains part of the antihypertensive effect of beta blockers. In hypertension adrenaline from the adrenal medulla, getting enriched in sympathetic axon terminals, might create a pathological positive feedback with excessive release of sympathetic transmitter; beta blockers might bring release down to normal levels.

1975

Guimarães was born in Espargo, a village close to the city of Santa Maria da Feira in the Portuguese Região Norte. He is the second son of the peasant Américo Ferreira Pinto Guimarães and his wife Maria Emília Correia née Pais. Serafim studied medicine at the University of Porto and simultaneously worked at the Department of Pharmacology. After military service in Angola from November 1963 to December 1965 he returned to the Department of Pharmacology. In 1966 he spent five months with Hans-Joachim Schümann at the University of Duisburg-Essen, in 1971 and 1977 another nine months with Ullrich Trendelenburg at the University of Würzburg. He has commemorated Ullrich Trendelenburg, who became his friend, in his book „Retratos legendados“. In 1968 he obtained his Ph.D. on the basis of his thesis Receptores Adrenérgicos – Ensaio de Interpretação e Análise (Adrenoceptors – An Attempt at Interpretation and Analysis). In 1973 he became Assistant Professor. He was dismissed in April 1974 in the course of the Carnation Revolution but was reinstated when the pro-Communist Coup of 25 November 1975 was defeated. In 1979 he was nominated Full Professor of Pharmacology and Toxicology. From 1990 to 2005 he was head of the Department. He retired in 2005. His successor is Patrício Soares-da-Silva (born 1957). In 1964 Serafim married Maria de Fátima née Martins de Sousa, with whom he has two sons and a daughter.

1970

When the group in Porto found their main theme, they also initiated a series of meetings of similarly interested researchers, the Porto Meetings on Adrenergic Mechanisms. The first took place in 1970, with forty participants. Ten further meetings followed, in 1973, 1978, 1981, 1983, 1986, 1989, 1993, 1996, 2000 and 2003. The meetings were much smaller than the International Catecholamine Symposia begun in 1958. The Abstract book of the 1993 meeting contained 67 contributions, while that of the International Catecholamine Symposium of 1992 in Amsterdam contained 728. The exchange of ideas was the more lively. Visitors also appreciated what was only loosely connected with the scientific sessions, in 1970 when ″people in Porto still understood by a coffee break a port break″, in 1973 ″Serafim Guimarães' Coimbra fados, the fabulous dinner given by the mayor of Amarante″, in 1989 ″the unanimous wish for scopolamine oder meclizine on the Douro valley serpentine tour.“

1969

In the same year 1969 Guimarães, together with Osswald, studied the pharmacology of veins, little known as compared to arteries. All effects of the catecholamines adrenaline, noradrenaline, dopamine and isoprenaline could be accounted for by an action as agonists, activating substances, on α- und β-adrenoceptors co-existing in vascular smooth muscle. Veins and their receptors remained favourites. Guimarães has summarized the knowledge on blood vessels, their nerves and their response to catecholamines in 1983, with Walter Osswald, and in 2001, with his research fellow Daniel Moura. The article of 2001 became his most bibliometrically successful one.

1960

Interest in catecholamines and their receptors dominated the Porto Department in the 1960s. Work just before Guimarães' entry had suggested that there might be more than a single α-adrenoceptor, and so did one of Guimarães' first studies: forerunners of the distinction, important in the history of catecholamine research, between α1- and α2-adrenoceptors.

1934

Serafim Guimarães, full name Serafim Correia Pinto Guimarães, (born May 2, 1934) is a Portuguese physician and pharmacologist. With his colleague Walter Osswald (born 1928) he made the Department of Pharmacology, Medical Faculty of the University of Porto, a center of research on catecholamines and the sympathetic nervous system, especially their relation to blood vessels.