Frederick Bating

When the war ended in 1919, Banting returned to Canada and for a short period of time he was a medical practitioner in London, Ontario. He studied orthopedic medicine and was Resident Surgeon at the Hospital for Sick Children in Toronto, during 1919-1920. From 1920 until 1921 he did part time teaching in orthopedics at the University of Western Ontario in London, Ontario besides his general practice, and from 1921 until 1922 he was Lecturer

Banting was deeply interested in diabetes. The works of others had indicated that diabetes was caused by lack of a protein hormone secreted by the islets of Langerhans in the pancreas. To this hormone the name insulin had been given, and it was supposed that insulin controls the metabolism of sugar, so that lack of it results in the accumulation of sugar in the blood and the excretion of the excess of sugar in the urine. Attempts to supply the missing insulin by feeding patients with fresh pancreas, or extracts of it, had failed, presumably because the protein insulin in these had been destroyed by the proteolytic enzyme of the pancreas. The problem, therefore, was how to extract insulin from the pancreas before it had been destroyed.

In addition to his medical degree, Banting also obtained, in 1923, the LL.D. degree at Queens and the D.Sc. degree in Toronto. Prior to the award of the Nobel Prize in Physiology or Medicine for 1923, which he shared with Macleod, he received the Reeve Prize of the University of Toronto. In 1923, the Canadian Parliament

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