Invisible Frontiers: The Race to Synthesize a Human Gene.

• Author: Graulich, David

Invisible Frontiers: The Race to Synthesize a Human Gene. Stephen S. Hall. Atlantic Monthly Press, $19.95. Every year authorities make predictions that turn out to be wrong, forecasting shortages of some commodity--oil, hospital beds, American-born field goal kickers--that correct themselves. People forget about the prediction, the experts move on to some new crisis, and nothing much comes of it.

In one instance, however, there were lasting and remarkable consequences from a mistaken forecast made by a consensus of experts in the mid-1970s: the world's diabetic population, they said, would soon face a shortage of insulin. The prediction was so dramatic it spawned an entire industry--biotechnology. Today, biotech companies employ thousands of people for work that has nothing to do with insulin--making drugs for heart attack victims and growth hormones and performing AIDS research. Early investors in these businesses have become rich and biotech has replaced computers as the glamour industry of Wall Street. This all came about because the experts were wrong about insulin.

Stephen Hall, a freelance science writer, describes in this fine book how a few mistakes, a lot of fear, and plenty of capital produced America's gene-splicing industry. He begins with the pancreases of slaughtered cows and pigs from which insulin is produced. With Americans in the 1970s consuming less red meat, the supply of car-casses appeared to be diminishing, just as an aging U.S. population was beginning to produce more insulin-dependent diabetics. The perceived shortage triggered a race to mass-produce human insulin by synthesizing a human insulin gene.

The bureaucratic mishap that started the race probably stemmed from an official who prepared projections for the Food and Drug Administration, who based his data on a mistake in an Eli Lilly training brochure that confused kilograms with pounds. "The whole thing was rubbish. There never was a shortage of pig pancreases, and there never will be," a pharmaceutical executive tells Hall. The synthesized insulin, it turned out, had neither economic nor significant medical advantages over the pig variety.

Nevertheless, the insulin scare attracted a formidable array of scientific talent. They were drawn by the chance to do what they called "Big Guy Science"--to tackle the handful of problems whose solutions held promise of a Nobel Prize. A few of them were also drawn by the opportunities it held for making them rich. The race...