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Barend Joseph Stokvis

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Barend Joseph Stokvis
Barend Joseph Stokvis2.jpg
Photograph of Barend Joseph Stokvis published in the 1890s
Born (1834-08-16)16 August 1834
Amsterdam, Netherlands
Died 28 September 1902(1902-09-28) (aged 68)
Amsterdam, Netherlands
Alma mater
Scientific career
Institutions University of Amsterdam

Barend Joseph Stokvis (Dutch pronunciation: [ˈbaːrənt ˈjoːsəf ˈstɔkfɪs]; 16 August 1834 – 28 September 1902) was a physician and professor of physiology and pharmacology at the University of Amsterdam. He is mainly remembered for his description of acute porphyria in 1889.[1][2] As a researcher in chemical pathology he made contributions to the understanding of a number of diseases, such as diabetes. He was also considered an expert in tropical medicine and a celebrated medical educator.[3] He authored an influential pharmacology textbook.[3] Stokvis was one of a number of prominent 19th century Jewish physicians in the Netherlands.[4]

Early life and education[edit]

Stokvis was born to Rachel Wittering and Joseph Barend Stokvis, Jr., a Jewish physician and obstetrician in Amsterdam.[5] He studied medicine in Amsterdam and at the University of Utrecht under Franciscus Donders and Jacobus Schroeder van der Kolk,[3][6] obtaining a doctorate on a dissertation on hepatic glucose production in diabetes in 1856.[3][7][8] His thesis appeared shortly after the publication of related work by the French physiologist Claude Bernard.[9] Stokvis may also have been influenced by the chemist Gerardus Mulder in Amsterdam.[10] Subsequently, he travelled to Paris and Vienna (and possibly Prague),[10] before establishing himself in medical practice in Amsterdam. He continued his medical research under the physiologists Adriaan Heynsius, Wilhelm Kühne and Thomas Place.[6] In 1867, the Brussels Academy awarded a gold medal to Stokvis for an essay on the development of albuminuria, a kidney disorder in which the protein albumin can be detected in the urine.[6][8][9]

Scientific career[edit]

Portrait of B. J. Stokvis (1899) by Jozef Israëls

In 1874 he was appointed as lecturer in medicine at the Athenaeum Illustre in medicine, pathology and pharmacodynamics,[3][6][8] and became a professor when the Athenaeum received university status and became the Municipal University of Amsterdam.[3][11] He served as rector magnificus (dean) of the university in the 1880s.[11]

His prolific output, mainly in chemical pathology,[3] included research into the metabolism of glycogen, uric acid, and urea; studies into an epidemic of cholera in Amsterdam; the toxicity of Atropa belladonna (deadly nightshade); various pigmented substances in the blood (including porphyrins); the nature of the heart sounds; and several contributions in tropical medicine,[6] in which he was considered an expert.[3] He also described the blood disorder methaemoglobinaemia.[11]

In 1889, he reported on a case of acute illness provoked by the newly introduced hypnotic drug sulfonmethane, also known as sulfonal.[1][12] Stokvis observed the unusual dark red urine, discovered that it contained porphyrins, and coined the name "porphyria" for the condition.[2] The patient's underlying condition was probably acute intermittent porphyria, which can be provoked by medicines. Similar reports by others followed shortly after, and it was soon found that other drugs could also induce porphyria attacks.[12][13] The Swedish chemist Olof Hammarsten further analysed red compound found in the urine of the patients with sulfonal-related porphyria attacks, labeling it "haematoporphyrin".[14] Porphyrins were first identified by the German chemist Felix Hoppe-Seyler in 1871, and derive their named from the Greek for purple—poxphuros—after to their purple color.[13]

Stokvis' most important work was judged by his contemporaries to be his three-volume "Voordrachten over Geneesmiddelenleer" ("Speeches on Pharmacology", soon translated into the French "Leçons de Pharmacotherapie"), which appeared shortly before his death.[3][11]

Other activities[edit]

Stokvis was close to the influential German pathologist Rudolf Virchow.[11] In 1879 Stokvis was elected a member of the Royal Netherlands Academy of Arts and Sciences,[6][8][15] and he served as vice-president of the Academy in 1896.[6] He was awarded received an honorary Doctorate of Laws by the University of Edinburgh in 1884.[8][11] Stokvis also chaired the 1883 International Colonial Medicine Congress in Amsterdam.[6] He was one of the founders (in 1896) of Janus, an international journal for the history of medicine.[3][6][10] He is regarded as an illustrious member of Holland's medical dynasty, and as a pioneer in the fields of chemical physiology and chemotherapy.[4] Together with Samuel Siegmund Rosenstein, professor of medicine in Leiden, he was a supporter of Aletta Jacobs, the first woman to qualify as a doctor in the Netherlands.[4]

In addition to his medical work, Stokvis also succeeded his father as president of the charitable Jewish Poor Board (Nederlandsch Israëlitisch Armbestuur),[6] was a member-founder of the Dutch Jewish Institute for the Insane, and a board member of the Jewish Institute for the Aged and the Amsterdam Jewish Hospital (Centraal Israëlitische Ziekenverpleging).[3][9] He was also a patron of the arts.[9]

Personal life[edit]

In 1865 he married Julia Elisabeth,[9] the sister of his close friend, the banker and philanthropist A.C. Wertheim.[3] They had two children.[9] He was an ardent swimmer, and wrote poetry under several pseudonyms. He spoke several languages.[3] He died in Amsterdam shortly after returning from a holiday in Ireland,[11] from what was thought to be myocarditis.[10]


  1. ^ a b Stokvis BJ. "Over twee zeldzame kleurstoffen in urine van zieken". Nederlandsch Tijdschrift voor Geneeskunde (in Dutch). 2: 409–417.  Reprinted in Stokvis BJ (December 1989). "Over twee zeldzame kleurstoffen in urine van zieken". Nederlands Tijdschrift voor Geneeskunde (in Dutch). 133 (51): 2562–70. PMID 2689889. 
  2. ^ a b Nick Lane (2002-12-16). "Born to the purple: the story of porphyria". Scientific American. Retrieved 2008-08-05. 
  3. ^ a b c d e f g h i j k l m Hes HS (1980). Jewish physicians in the Netherlands 1600–1940. Assen: Van Gorcum & Co. pp. 157–9. ISBN 90-232-1743-8. 
  4. ^ a b c Heynick, Frank (2002). Jews and medicine: an epic saga. New York: Ktav Publishing House. p. 209. ISBN 0-88125-773-7. 
  5. ^ "Joseph Barend Stokvis (jr)" (in Dutch). Jewish History Museum, Amsterdam. Retrieved 2011-04-11. 
  6. ^ a b c d e f g h i j Enersen OD. "Barend Joseph Stokvis". Retrieved 2011-04-11. 
  7. ^ Stokvis BJ (1856). De glucogenesi in hepate ejusque nexu cum excretione sacchari in diabete mellito. Rheno-Trajectina [Utrecht]. 
  8. ^ a b c d e Singer I, Slijper E (1906). "Stokvis, Barend Joseph". Jewish Encyclopedia. p. 556. Retrieved 2011-04-11. 
  9. ^ a b c d e f van Berkel K (1994). "Stokvis, Barend Joseph (1834–1902)". Biografisch Woordenboek van Nederland (in Dutch) (4 ed.). Den Haag: Instituut voor Nederlandse Geschiedenis. ISBN 90-5216-058-9. 
  10. ^ a b c d W.S. (1902). "Barend Joseph S. Stokvis. 1834–1902". British Medical Journal. 2 (2182): 1383. doi:10.1136/bmj.2.2182.1383. PMC 2401982Freely accessible. 
  11. ^ a b c d e f g Anonymous (1902). "Obituary – Barend Joseph Stokvis, M.D., LL.D". Lancet. 160 (4128): 1022–1023. doi:10.1016/S0140-6736(01)42738-3. 
  12. ^ a b Rimington C (1964). "Enzymes and drug sensitivity; drug and enzyme interactions in porphyrias". Proceedings of the Royal Society of Medicine. 57: 511–4. PMC 1898067Freely accessible. PMID 14190874. 
  13. ^ a b Goldberg A (1998). "The porphyrias: historical perspective". Clinics in Dermatology. 16 (2): 189–93. doi:10.1016/S0738-081X(97)00199-5. PMID 9554232. 
  14. ^ Thunell S, Floderus Y, Henrichson A, Harper P (2006). "Porphyria in Sweden" (PDF). Physiological Research. 55 Suppl. 2: 109–18. PMID 17298215. 
  15. ^ "Barend Joseph Stokvis (1834–1902)" (in Dutch). Royal Netherlands Academy of Arts and Sciences. Retrieved 14 July 2015. 

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