Before the 20th century, a diagnosis of childhood diabetes was a death sentence. The condition, known today as Type 1 diabetes, was a rare and tragic disease. Ancient physicians recognized its hallmark symptoms—excessive thirst and urination, and weight loss—but lacked any understanding of its cause or treatment. In some cultures, a diagnosis was made by observing if ants were attracted to a person’s sugary urine, a grim sign of what was to come.
Desperate Measures Before Insulin
For centuries, doctors attempted various dietary treatments, often based on a principle of starvation. One particularly grim regimen in the early 1900s, advocated by Dr. Frederick M. Allen, involved periods of fasting and a severely restricted, high-fat, high-protein diet. While it could temporarily control symptoms, it left children emaciated and weak, often extending their suffering only to end in death within a year or two.
The Discovery That Changed Everything
The turning point came in 1921. At the University of Toronto, a team of researchers led by Frederick Banting and Charles Best successfully isolated insulin from a dog’s pancreas. A few months later, on January 11, 1922, they administered the life-saving hormone to Leonard Thompson, a 14-year-old boy who was on the brink of death from diabetic ketoacidosis. The initial injection was not fully purified and had little effect. However, a refined version was given 12 days later, and it worked like a miracle, restoring his blood glucose levels and saving his life.
This discovery transformed childhood diabetes from a fatal disease into a manageable chronic condition. In a remarkable act of generosity, the researchers sold the patent for insulin for just one dollar, believing it should be accessible to all who needed it.
A Century of Innovation
Over the next century, milestones in pediatric diabetes care continued. The 1960s saw the development of urine strips for easier glucose monitoring, followed by the first portable glucose meters in the 1970s. This gave patients and their families the power to manage the disease at home. The insulin pump was introduced in the 1970s as well, offering a way to more closely mimic the body’s natural insulin release. In the 1980s, the creation of human insulin through genetic engineering provided a purer, more effective treatment.
Today, the landscape of childhood diabetes management is a world away from the desperate measures of the past. Continuous glucose monitors (CGMs) and “artificial pancreas” systems, which link a CGM to an insulin pump to automatically adjust insulin delivery, have revolutionized care. Children can now live long, healthy lives, a testament to a century of scientific innovation that began with a groundbreaking discovery and saved countless young lives from an otherwise certain fate.
