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, 61 (3), 254-8

A Brief History of Choline

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A Brief History of Choline

Steven H Zeisel. Ann Nutr Metab.

Abstract

In 1850, Theodore Gobley, working in Paris, described a substance, 'lecithine', which he named after the Greek 'lekithos' for egg yolk. Adolph Strecker noted in 1862 that when lecithin from bile was heated, it generated a new nitrogenous chemical that he named 'choline'. Three years later, Oscar Liebreich identified a new substance, 'neurine', in the brain. After a period of confusion, neurine and choline were found to be the same molecule, and the name choline was adapted. Lecithin was eventually characterized chemically as being phosphatidylcholine. In 1954, Eugene Kennedy described the cytidine 5-dihphosphocholine pathway by which choline is incorporated into phosphatidylcholine. A second route, the phosphatidylethanolamine-N-methyltransferase pathway, was identified by Jon Bremer and David Greenberg in 1960. The role of choline as part of the neurotransmitter acetylcholine was established by Otto Loewi and Henry Dale. Working in the 1930s at the University of Toronto, Charles Best showed that choline prevented fatty liver in dogs and rats. The importance of choline as an essential nutrient for human health was determined in the 1990s through controlled feeding studies in humans. Recently, an understanding of the role of genetic variation in setting the dietary requirement for choline in people is being unraveled.

Figures

Figure 1
Figure 1
Theodore Gobley
Figure 2
Figure 2
Adolf Strecker
Figure 3
Figure 3
Oscar Liebreich
Figure 4
Figure 4
Otto Loewi
Figure 5
Figure 5
Henry Dale
Figure 6
Figure 6
Charles Best, left, and Fredrick Banting, right, and with one of the diabetic dogs used in the experiments with insulin. (Courtesy of the University of Toronto Archives)
Figure 7
Figure 7
Steven Zeisel. Thinking about choline at an early age.

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