insulin
2 articles tagged with ‘insulin’
Insulin: Discovery in 1921, Structure, and Key Properties
Insulin, discovered by Banting and Best in 1921, evolved from animal pancreas extracts to highly pure recombinant human versions exceeding 98% purity. This 51-amino acid hormone features two chains linked by disulfide bonds and forms hexamers with zinc for storage and stability. Modern formulations include phenolic preservatives that trigger a conformational shift, alongside agents for isotonicity and buffering, matching natural secretion patterns of 60-80 μU/mL post-meal peaks and 5-15 μU/mL basal levels.
Peptides in Canada: From Insulin to the 2026 Research Landscape
Canada's peptide story starts with insulin at the University of Toronto in 1921, not with online storefronts. What Health Canada actually approves, the 2026 generic semaglutide sequence that made Canada the first G7 country to authorise one, where peptide research is done here, and what separates a reviewed drug from a research reagent.