REAL STORIES

Bayliss and Starling Found the Secretin Hormone in a Dog’s Gut. Medicine Got the Word ‘Hormone’

By Grey Pepper Editorial Every GLP-1 drug, every insulin pen and every peptide hormone test belongs to a medical world built around an idea so...

Adolfo de Bold Proved the Heart Makes a Hormone. Doctors Now Read Heart Failure in Its Peptides.

For most of medical history, the heart was understood primarily as a pump. Glands made hormones; the heart moved blood. In 1981, a pathologist...

Sérgio Ferreira Found Bradykinin’s Bodyguard in Snake Venom. It Became a Blood Pressure Pill.

By Grey Pepper Editorial Historical profile. The jararaca is a pit viper of southeastern Brazil, and for most of the twentieth century its bite was...

Axel Ullrich Helped Put Insulin Genes Into Bacteria. Then He Followed the Receptor Into Cancer

Historical profile. Before recombinant human insulin became an ordinary pharmacy product, it was a race among a handful of laboratories to persuade bacteria to...

Roger Unger Insisted Diabetes Had Two Hormones, Not One. Today’s Obesity Drugs Target Glucagon Too

Historical scientist profile. No original interviews were conducted for this article. For much of the twentieth century, the dominant explanation of diabetes centered on insulin....

Richard DiMarchi Swapped Two Amino Acids in Insulin. Then He Taught Peptides to Hit Several Targets at Once

Richard DiMarchi is a rare figure in metabolic medicine: a chemist whose scientific career connects a fast-acting insulin introduced in the 1990s with the...

Lotte Bjerre Knudsen Spent Decades Making a Fragile Gut Hormone Last. Ozempic Was the Result

Every blockbuster drug has a molecule at its center and, somewhere behind it, scientists who refused to abandon a difficult problem. For the GLP-1 medicines...

Rosalyn Yalow Learned to Measure Insulin in a Converted Janitor’s Closet. Hormone Science Never Looked Back

Modern peptide medicine runs on numbers: insulin levels, hormone concentrations, drug exposure in the blood. It is easy to forget that, for much of...