Tag Archives: University of Toronto

today’s image: the discovery of Insulin



The Discovery of Insulin
Following the birth of an idea and nine months of experimentation, and through the combined efforts of four men at the University of Toronto, Canada, insulin for the treatment of diabetes was first discovered and later purified for human use. Rural Canadian physician Dr. F.G. Banting first conceived the idea of extracting insulin from the pancreas in 1920. He and his assistant C.H. Best prepared pancreatic extracts to prolong the lives of diabetic dogs with advice and laboratory aid from Professor J.J.R. Macleod. The crude insulin extract was purified for human testing by Dr. J.B. Collip. On January 23, 1922, the first successful test on a human patient with diabetes occurred when insulin was administered to dangerously ill Leonard Thompson. Insulin, now made from cattle pancreases, lifted the death sentence for diabetes sufferers around the world.

Image: Banting House National Historic Site

– See more at: http://www.historynet.com/picture-of-the-day?podMonth=1&podDay=23&pod=GO#sthash.FvHYuEHM.dpuf

NEWS: ATTENTIVE OLDER SIBLINGS


Attentive Older Siblings

Studies show that children from larger families score more poorly on tests of IQvocabulary, and other academic indicators than kids from smaller families. Experts attribute this in part to reduced parental attention resulting from the need to divide time and attention among the children. This effect appears to be mitigated in families where older siblings are attuned to their younger siblings’ abilities and interact positively with them. A recent study found that children from large families who had “cognitively sensitive” older siblings performed better on a vocabulary test than those whose siblings were not. More… Discuss

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