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Rudolf Magnus (2 September 1873, Brunswick – 25 July 1927,
Pontresina Pontresina ( rm, Puntraschigna) is a municipality in the Maloja Region in the canton of Graubünden in Switzerland. History and name Pontresina was first mentioned in medieval Latin documents as ''ad Pontem Sarisinam'' in 1137 and ''de Ponte Sa ...
) was a German
pharmacologist Pharmacology is a branch of medicine, biology and pharmaceutical sciences concerned with drug or medication action, where a drug may be defined as any artificial, natural, or endogenous (from within the body) molecule which exerts a biochemic ...
and
physiologist Physiology (; ) is the scientific study of functions and mechanisms in a living system. As a sub-discipline of biology, physiology focuses on how organisms, organ systems, individual organs, cells, and biomolecules carry out the chemical ...
. He studied
medicine Medicine is the science and Praxis (process), practice of caring for a patient, managing the diagnosis, prognosis, Preventive medicine, prevention, therapy, treatment, Palliative care, palliation of their injury or disease, and Health promotion ...
, specialising in pharmacology, in
Heidelberg Heidelberg (; Palatine German language, Palatine German: ''Heidlberg'') is a city in the States of Germany, German state of Baden-Württemberg, situated on the river Neckar in south-west Germany. As of the 2016 census, its population was 159,914 ...
, where he became
associate professor Associate professor is an academic title with two principal meanings: in the North American system and that of the ''Commonwealth system''. Overview In the '' North American system'', used in the United States and many other countries, it is ...
of pharmacology in 1904. In 1908 he became the first professor of pharmacology in
Utrecht Utrecht ( , , ) is the fourth-largest city and a municipality of the Netherlands, capital and most populous city of the province of Utrecht. It is located in the eastern corner of the Randstad conurbation, in the very centre of mainland Nethe ...
, where he spent the rest of his working life. Had he lived, he likely would have been awarded the Nobel Prize for his work on animal reflexes. The authors of Nobel, the Man and his Prizes by H.Schück et al., edited by the Nobel Foundation (2nd ed. Amsterdam, 1962, p. 311) wrote of Magnus and his co-worker De Kleyn: ‘The examiner 927declared that the work done by Magnus and De Kleyn clearly deserved a prize, and the prospects for an award seemed most favourable when Magnus unexpectedly died.’ For his life and work see, Rudolf Magnus, Physiologist and Pharmacologist: A Biography (2002, Royal Netherlands Academy of Arts and Sciences) by his son, Dr.Otto Magnus. Magnus had five children, Karl (1903-1989) lung specialist; Margarete (Gretl)(1905-1968)who worked as his secretary and translator; Dorothea who died aged 11; Erica (1909-1991) architect; and Otto (1913-2014) neurologist. Magnus is most widely known for his work as a physiologist. His book ''Körperstellung'' ("Posture")., a study of functional
neurology Neurology (from el, νεῦρον (neûron), "string, nerve" and the suffix -logia, "study of") is the branch of medicine dealing with the diagnosis and treatment of all categories of conditions and disease involving the brain, the spinal ...
, is his best known work.


Academic work

In 1901, while in Germany, Magnus discovered the
diuretic A diuretic () is any substance that promotes diuresis, the increased production of urine. This includes forced diuresis. A diuretic tablet is sometimes colloquially called a water tablet. There are several categories of diuretics. All diuretics in ...
effect of the excretions of the
pituitary gland In vertebrate anatomy, the pituitary gland, or hypophysis, is an endocrine gland, about the size of a chickpea and weighing, on average, in humans. It is a protrusion off the bottom of the hypothalamus at the base of the brain. The hypop ...
."The action of pituitary extracys of the kidney", Journal of Physiology, Cambridge, 1901, 27: ix-x. From 1908, Rudolf Magnus worked on the physiology of posture and muscle tension. Although he was a pharmacologist, this research made him world famous. His most famous book, ''Körperstellung'', was published in Berlin in 1924, and translated into English in 1987. In this book Magnus describes the reflexes involved in mammal posture. The Magnus & De Kleijn reflexes are named after Magnus and his colleague Adriaan de Kleijn (1883–1949). The head and neck reflexes of mammals cause the body to follow automatically when the head moves. He also researched the reflexes of the
intestines The gastrointestinal tract (GI tract, digestive tract, alimentary canal) is the tract or passageway of the digestive system that leads from the mouth to the anus. The GI tract contains all the major organs of the digestive system, in humans ...
and phenomena such as
motion sickness Motion sickness occurs due to a difference between actual and expected motion. Symptoms commonly include nausea, vomiting, cold sweat, headache, dizziness, tiredness, loss of appetite, and increased salivation. Complications may rarely include ...
. In 1925, Magnus was awarded the
Cameron Prize for Therapeutics of the University of Edinburgh The Cameron Prize for Therapeutics of the University of Edinburgh is awarded by the College of Medicine and Veterinary Medicine to a person who has made any highly important and valuable addition to Practical Therapeutics in the previous five ye ...
. The pharmacological research of Rudolf Magnus was focussed on the effect of medication on the
heart The heart is a muscular organ found in most animals. This organ pumps blood through the blood vessels of the circulatory system. The pumped blood carries oxygen and nutrients to the body, while carrying metabolic waste such as carbon diox ...
,
blood vessels Blood vessels are the structures of the circulatory system that transport blood throughout the human body. These vessels transport blood cells, nutrients, and oxygen to the tissues of the body. They also take waste and carbon dioxide away fro ...
,
lungs The lungs are the primary organs of the respiratory system in humans and most other animals, including some snails and a small number of fish. In mammals and most other vertebrates, two lungs are located near the backbone on either side of ...
and the
gastrointestinal tract The gastrointestinal tract (GI tract, digestive tract, alimentary canal) is the tract or passageway of the digestive system that leads from the mouth to the anus. The GI tract contains all the major organs of the digestive system, in humans a ...
. Thus, he studied the effects of narcotics, as well as poison gasses on the lungs. He conducted the poison gas study during
World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was List of wars and anthropogenic disasters by death toll, one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, ...
(1914—1918) when he served as an army doctor in Germany. Magnus was very fond of ice skating and would give his whole laboratory staff time off when the temperature was below freezing.


Rudolf Magnus Institute

Originally the pharmacology department in Utrecht was housed in an old hospital for victims of the plague (built in 1567), named ''Leeuwenbergh''. Magnus convinced the
Rockefeller Foundation The Rockefeller Foundation is an American private foundation and philanthropic medical research and arts funding organization based at 420 Fifth Avenue, New York City. The second-oldest major philanthropic institution in America, after the Ca ...
to give him the money to build a new laboratory. In 1926, Magnus laid the first stone for this new institute in Utrecht on the Vondellaan, named ''Nieuw Leeuwenbergh''. In 1968,
David de Wied David de Wied (12 January 1925 – 21 February 2004, aged 79) was a Dutch professor of pharmacology at the University of Utrecht. Due to the necessity of hiding as a Jew during the Second World War, De Wied only started in 1947 studying medicine ...
renamed the building the ''Rudolf Magnus Institute''. Due to his death in 1927 Rudolf Magnus never worked there himself. Today the building is no longer in use as a laboratory. The ''Rudolf Magnus Institute for Neuroscience'' still exists and is one of the research institutes of the University Medical Center Utrecht, where neuroscientific research is performed. The Anatomical Museum in Utrecht houses Rudolf Magnus' archive.


References


External links


Rudolf Magnus Institute


- Proceedings of the Royal Society of London (1925)

- The Lancet (1926) {{DEFAULTSORT:Magnus, Rudolf 1873 births 1927 deaths German pharmacologists German physiologists Academic staff of Utrecht University Heidelberg University alumni Academic staff of Heidelberg University German expatriates in the Netherlands Scientists from Braunschweig