Who First Produced Insulin?

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History Of Insulin

Rosie Cotter explores the history of this important protein and its role in diabetes In 1922, a 14-year-old boy named Leonard Thompson lay in Toronto General Hospital dying from diabetes. He weighed less than 30 kg and was at risk of slipping into a diabetic coma. To avoid this, Leonard’s father allowed him to be injected with a new pancreatic extract, now known as insulin. At the time, people with diabetes tried to control their condition through a strict diet, but they usually died within a year of diagnosis. Remarkably, after the injection, Leonard regained his strength and appetite and went on to live for several more years. News of insulin and Leonard’s recovery spread around the world and brought notoriety to Dr Frederick Banting and student George Best at the University of Toronto. With the support of Professor John Macleod and biochemist Bertram Collip, Banting and Best had successfully extracted insulin from an animal pancreas and purified it so that it could be administered to humans. Insulin is a hormone that regulates glucose levels in the blood. When we eat, our glucose levels rise and insulin is released into the bloodstream. Insulin works by regulating glucose tr Continue reading >>

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Popular Questions

  1. She ra

    Is 1 ml 100 units on an insulin syringe? (for dog vaccine)

    that is my question, is 1 ml 100 units on an insulin syringe. I looked it up and there are many a couple of different answers, most of them say 1ml is 100 units....
    What say you my friends?

  2. furball64801

    No its not try taking a bottle and put 100 units in the syringe, I know its very confusing but you could not put a bottle in it.

  3. kgordon

    100u insulin is 100 units/mL.
    500u insulin is 500 units/mL
    40u insuilin is 40 units/mL.
    and so on . . .
    The typical vial here in the states is a 10mL bottle which contains 1000 units. It's important to make sure that the syringe one is using is marked for the insulin one is using. Syringes marked for use with 100u insulin come in sizes to hold either 100u (1mL), 50u (1/2mL) and 30u (.30mL). It is possible to use insulins of other strengths in these syringes but you would first have to convert as the marks are no longer valid for insulin of other strengths.
    So, to answer the question. Yes, if you have a 100 unit syringe marked for use with 100u then filling it up to the 100u mark will fill it with 1mL of 100u insulin.

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