Albert Szent-Györgyi

Albert Szent-Györgyi was a Hungarian physiologist and biochemist who made foundational contributions to modern biology. He is best known for isolating vitamin C and for his discoveries concerning the citric acid cycle and the biochemistry of muscle contraction, work for which he was awarded the Nobel Prize in Physiology or Medicine in 1937. His later career was marked by significant political activism during World War II and pioneering research into the biophysics of cancer.

Early life and education

He was born in Budapest into a family with a strong academic tradition; his father, Mihály Szent-Györgyi, was a landowner, and his uncle, Lőrinc Szent-Györgyi, was a professor of anatomy. He began his medical studies at Semmelweis University but his education was interrupted by service as an army medic in World War I, during which he was awarded the Silver Medal for Valor. After the war, he completed his doctoral degree and pursued further biochemical research at institutions including the University of Groningen, the University of Hamburg, and the prestigious University of Cambridge under the guidance of Frederick Gowland Hopkins.

Career and research

Following his time at the University of Cambridge, he returned to Hungary, holding professorships first at the University of Szeged and later at the University of Budapest. His early research focused on cellular respiration and oxidation, leading to his critical identification of a reducing agent in plant tissues, which he initially called "hexuronic acid." Beyond his work on vitamins, he made seminal contributions to understanding the citric acid cycle, a series of chemical reactions used by all aerobic organisms, and conducted groundbreaking studies on the biochemistry of actin and myosin in muscle tissue. He also founded the influential journal Acta Physiologica Hungarica.

Discovery of vitamin C

His isolation and identification of the antiscorbutic factor, vitamin C, stands as a landmark achievement in nutritional science. While at the University of Szeged, he successfully isolated large quantities of the compound from paprika, confirming it was identical to the "hexuronic acid" he had previously studied. He demonstrated its role in preventing scurvy and, with the assistance of chemist Joseph L. Svirbely, proved its identity as ascorbic acid. This discovery directly led to his receipt of the Nobel Prize in Physiology or Medicine in 1937.

World War II and political involvement

During the late 1930s and the Second World War, he became deeply involved in anti-fascist politics. He used his international prestige to aid fellow scientists and openly opposed Nazi Germany and its allies, including the Hungarian Arrow Cross Party. In 1944, he undertook a clandestine diplomatic mission for the Hungarian resistance movement to negotiate with the Allies, which led to his going into hiding from the Gestapo. After the war, he briefly served as a member of the Hungarian Parliament but grew disillusioned with the rising influence of the Communist Party of Hungary and the Soviet Union.

Later life and legacy

He emigrated to the United States in 1947, where he joined the Marine Biological Laboratory in Woods Hole, Massachusetts. There, with funding from the National Foundation for Infantile Paralysis and later the American Heart Association, he shifted his research focus to the biophysics of cancer, exploring the roles of free radicals and electron transfer in cellular regulation. He became a naturalized U.S. citizen and continued his work until his death. His numerous honors include the Lasker Award and the National Academy of Sciences. The University of Szeged renamed its medical school in his honor, and his legacy endures through the Albert Szent-Györgyi Medical University.

Category:Hungarian biochemists Category:Nobel laureates in Physiology or Medicine Category:1893 births Category:1986 deaths