The Next generation.

摘要

Insulin as a medication has come a long way, but its journey is far from complete. When it first came on the market in the 1920s, insulin was extracted from the pancreases of pigs and cows. Decades later, bioengineers figured out how to prod yeast and bacteria to make human insulin. Next came the insulin analogs, which allowed injected insulin to act more like insulin released by the pancreas. Today, scientists continue their efforts to improve the lives and health of people with diabetes by designing ever better varieties of insulin—including some that may not need to be injected.