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Elias von Cyon, also known as Elie de Cyon, born Ilya Fadeyevich Tsion (Russian- Илья Фаддеевич Цион); (March 25, 1843 – 1912) was a Russian-French physiologist born in Telšiai, Russian Empire (today Lithuania). Son of Pinkhos (Faddey) Cyon and his wife Sarah; he had an elder brother Moses (born 1840).〔Frank Fox, "The Protocols of the Elders of Zion and the Shadowy world of Elie de Cyon," ''East European Jewish Affairs'', 27:1 (1997), 3-22. 〕 Cyon studied medicine at the medical-surgical academy in Warsaw, at the University of Kiev and in Berlin. He obtained a degree in medicine in Kiev in 1864. In 1866 he worked in Leipzig as an assistant to Carl Ludwig (1816–1895), with whom he collaborated on creation of the first isolated perfused frog heart preparation.〔(Physiology Online ) The Isolated Perfused Heart and Its Pioneers〕 From 1867 he taught classes on anatomy and physiology at the University of St. Petersburg, where he was assistant to the director of the physiology laboratory, Filipp Ovsyannikov. At St. Petersburg one of his students was Ivan Pavlov (1849–1936). In 1870 he became an associate professor, and following student protests concerning his political views, he relocated to Paris in 1877. In Paris he attained French citizenship and worked with famed physiologist Claude Bernard (1813–1881). His name is associated with "Cyon's nerve" (aortic nerve), which is a branch of the vagus nerve that terminates in the aortic arch and base of the heart. It is composed entirely of afferent fibers.〔(Mondofacto Dictionary ) (definition of eponym)〕 He converted to Catholicism in 1908 and is claimed to have written parts of ''The Protocols of Zion''.〔 == References == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Elias von Cyon」の詳細全文を読む スポンサード リンク
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