What is Oleh Hornykiewicz?
[[File:Oleh Hornykiewicz (1985).jpg|right|200px]] '''Oleh Hornykiewicz''' (17 November 1926 &ndash; 26 May 2020) was a Polish-born Austrian [[Wolf Prize]]-winning [[biochemist]]. Hornykiewicz was born in [[Sykhiw]] (a district of [[Lviv]]), then in [[Poland]] (now [[Ukraine]]).<ref>{{Cite web| title = The History of Neuroscience in Autobiography - Volume 4| url = http://www.sfn.org/skins/main/pdf/history_of_neuroscience/hon_vol_4/c7.pdf| url-status = dead| archive-url = https://web.archive.org/web/20100613070356/http://sfn.org/skins/main/pdf/history_of_neuroscience/hon_vol_4/c7.pdf| archive-date = 2010-06-13}}</ref> He was chairman of the Institute of Biochemical Pharmacology at the [[University of Vienna]] for twenty years. In 1967, he began a long career with the [[University of Toronto]] in [[Canada]] and, in 1992, he was named professor emeritus at that institution.<ref>{{Cite web|title=The Michael J. Fox Foundation for Parkinson's Research |url=http://www.michaeljfox.org/about_people_advisors_bio.cfm?ID=14 |url-status=dead |archive-url=https://web.archive.org/web/20090101165028/http://www.michaeljfox.org/about_people_advisors_bio.cfm?ID=14 |archive-date=January 1, 2009 }} retrieved: 26 October 2009</ref> He discovered that [[Parkinson's disease]] was due to [[dopamine]] deficiency in the brain. He also played a key role in the development of [[L-dopa]] as a therapy for the disorder.<ref>{{cite web |url=http://www.parkinson.ca/site/c.kgLNIWODKpF/b.5722893/k.7B94/Dr_Oleh_Hornykiewicz.htm |title=Dr. Oleh Hornykiewicz - Parkinson Society Canada |access-date=2013-10-14 |url-status=dead |archive-url=https://web.archive.org/web/20131016012658/http://www.parkinson.ca/site/c.kgLNIWODKpF/b.5722893/k.7B94/Dr_Oleh_Hornykiewicz.htm |archive-date=2013-10-16 }}</ref> Hornykiewicz died on 26 May 2020, aged 93.<ref>[https://www.suedtirolnews.it/chronik/pharmakologe-oleh-hornykiewicz-93-jaehrig-gestorben Pharmakologe Oleh Hornykiewicz 93-jährig gestorben] {{Webarchive|url=https://web.archive.org/web/20200527185545/https:/