Articles
20 reference articles, each cited to primary literature.
origins
Why So Many Drugs Come Out of Venom
A snake, a sea snail and a desert lizard have each handed medicine a drug class. That is not a run of luck — it is what happens when you raid a chemistry programme that has been running for tens of millions of years.
The Hunt for the Hormones That Command the Pituitary
To find the molecules by which the brain gives orders to the endocrine system, two rival laboratories spent twenty years reducing animal brains by the tonne to a residue you could barely see. The first answer they got back was three amino acids long.
The Genome Everyone Thought Was Finished
The human mitochondrial genome was sequenced in 1981, catalogued at thirteen proteins, and filed away as complete. It was hiding genes — and they were found not by reading the sequence but by tripping over what they did.
Thymosin and the Gland It Was Named For
A peptide was named in the 1960s for the organ it came out of and the effect that organ was thought to have. Both halves of the name turned out to be wrong, and neither correction ever reached the label.
The Blood of Young Donors and a Tripeptide
Liver cells kept their character longer when the serum bathing them came from a young donor. Finding out why produced one of the smallest molecules in active research — and a fifty-year literature with one name running through it.
How Insulin Changed What a Drug Could Be
A hundred years ago a protein went into a dying boy's arm and came out the other side as a medicine. Almost everything peptide science has done since walked through that door.
The Gila Monster and the GLP-1 Drugs
A venomous lizard in the deserts of the American Southwest had already solved the problem that stalled a decade of pharmaceutical chemistry. It took an endocrinologist working on a side interest to notice.
turning points
From a Million Brains to a Usable Drug
Somatostatin was pulled out of the hypothalamus in 1973, did exactly what had been promised of it, and vanished from the bloodstream in about two minutes. Turning that result into a medicine meant throwing most of the molecule away.
The Assay That Made Hormones Visible
Before 1959, a hormone in a living person was something you could reason about but never weigh. Then a physicist and a physician in a Bronx veterans' hospital turned an inconvenient antibody into the most sensitive measuring device biology had ever had.
The Decades When Peptides Fell Out of Fashion
For roughly twenty years the pharmaceutical industry held a class of molecules that had already given medicine insulin — and largely walked away from it. Nothing about that decision was foolish, which is exactly what makes the return worth explaining.
The Hundred-Year Problem of Swallowing a Peptide
From the moment insulin existed, someone asked whether it could be a tablet, and for the better part of a century the answer was a flat no. The story of how that no was finally, partially, expensively overturned.
The Year the Obesity Drugs Worked
For half a century, obesity pharmacology was where careful people went to be disappointed. Then a trial reported a number that belonged, until that moment, to the operating theatre.
The Machine That Made Peptides Cheap
For a chemist in the 1950s, assembling a chain of nine amino acids was the work of years and worth a Nobel Prize. Then Bruce Merrifield fixed his molecule to a plastic bead, and the arithmetic of an entire field changed.
culture and controversy
What Is Actually in the Vial
A label is a claim, and for most of this market nobody independent has ever checked it. A handful of analytical chemists have — and what they found is a different problem from the one everyone argues about.
How Skincare Borrowed the Word Peptide
The word is on jars at every price, almost never with a concentration, a study or a specific molecule attached. What it is doing there turns out to be a question about law as much as about chemistry.
Why the Claims Outrun the Evidence
A compound can gather a couple of hundred papers reporting benefit and still have never been given to a single person under controlled conditions. The distance between those two facts is not the work of liars — it is built into the way findings travel.
Testing for a Molecule the Body Already Makes
Anti-doping chemistry usually asks a simple question: is this foreign substance here or not? Peptides refuse to answer it, because most of them are not foreign at all.
people and places
The Other Peptide Tradition
In Russia these are registered medicines with decades of published work behind them; in Britain most doctors have never heard of them. The gap between those two facts is not a verdict on the science — and that turns out to be much harder to live with than one.
The Zagreb School and a Literature With One Centre
Several hundred papers report that one short peptide accelerates repair in almost every tissue it has been tested on. Nearly all of them trace back to a single university programme — which is the most interesting thing about the whole affair.
The Arizona Lab and the Drug That Escaped
One university programme in the Sonoran Desert set out to invent a tan you could get without the sun. It ended up producing both a licensed prescription medicine and one of the most widely misused unlicensed peptides in circulation.