'Amazing discovery' of mouse hormone could aid diabetics
A newly discovered mouse hormone may open the door to better treatment for diabetes, researchers suggested on Thursday.
The hormone, called betatrophin, triggers the growth of pancreatic “beta” cells lost or ineffective in diabetes. Insulin is produced by beta cells in the pancreas.
Diabetes afflicts more than 25 million people nationwide, according to the American Diabetes Association. It is a condition that causes high blood sugar that can lead to heart disease, kidney failure and blindness.
In the journal Cell, a team led by Harvard's Peng Yi reports that betatrophin can produce a roughly seventeenfold increase in these cells, and its increase may partly explain the rapid growth of these cells seen during pregnancy to feed developing fetuses in mammals, including people.
“This is really an amazing discovery. Hormones with this kind of effect aren't discovered very often, and this opens a whole new pathway to treating diabetes,” said diabetes expert Jake Kushner of the McNair Medical Institute at Baylor College of Medicine in Houston, who was not part of the study team. He cautioned that the hormone's effects, which the study team sees as isolated to beta cells, need to be thoroughly investigated in animal studies for safety.
The hormone was discovered almost by accident, as the Harvard team investigated a research compound that basically recreates what happens in diabetes. The compound short circuits the release of insulin in response to increasing blood sugar. When that happened to the mice in the study, their production of the hormone betatrophin ramped up and spurred the growth of insulin producing cells. Diabetics often need daily insulin injections to compensate for the condition, where in Type 2, or adult-onset diabetes, the most frequent kind, beta cells stop producing enough insulin, and in juvenile diabetes, or Type 1, about 10 percent of cases, beta cells have died.
Show commenting policy
TribLive commenting policy
- 12 missing after flooding in Texas sweeps away vacation home
- Exhibit reproduces painter Frida Kahlo’s inspiration
- Doctors, hospitals get more time to convert to electronic health records
- EPA expected to expand protection of streams, wetlands
- Senate committee backs vets’ rights to marijuana
- BP credited with gulf tourism boom
- Children tossed, injured, from bounce house sent airborne by waterspout in Florida
- Wife, brother accused in man’s hatchet killing
- Rescuers find stranded woman in California desert, too late for husband
- Ohio’s largest road project to cost 3 times its estimate
- Biden reassures Iraq: U.S. backs your forces in fight against Islamic State