homehome Home chatchat Notifications


Scientists find 14 biomarkers associated with dying from any cause

A blood test that scores a person's risk of death in the next five years could be based on these molecules.

Tibi Puiu
August 22, 2019 @ 4:21 pm

share Share

What if you could take a simple blood test that tells you whether or not you’re at risk of dying in the next 5 to 10 years? Indeed, this sort of test would be truly life-saving, enabling people to make immediate lifestyle changes or quickly enter therapy in order to stave off the grim prognosis — and this “all-cause mortality” blood test isn’t actually that far away from reality.

A team of Dutch researchers at Leiden University led by Eline Slagboom found 14 biomarkers that are independently associated with mortality in people of all ages. When combined, they reveal an index or risk score that reflects a person’s chance of dying in the near future.

“Robust predictors of intermediate- and long-term mortality may be valuable instruments in clinical trials and medical decision-making,” the authors wrote in the journal Nature Communications.

“The associations of these biomarkers were consistent in men and women and across age strata. The identified biomarkers represent general health up to the highest ages rather than specific disease-related death causes. In combination, these biomarkers clearly improve risk prediction of 5- and 10-year mortality as compared to conventional risk factors across all ages.”

The results are based on data from biobanks around the world, involving more than 44,000 individuals aged 18 to 109. During the study’s follow-up, nearly 5,500 participants died.

By examining the data, the researchers were able to figure out which biomarkers were most strongly associated with potential mortality — a prime example is glucose. However, some of the markers can be used to evaluate overall health. For instance, the ratio of polyunsaturated fats to total fatty acids is associated with decreased mortality.

Ultimately, the researchers tested the predictive ability of these biomarkers on people of different age groups. Their model suggests that the 14 biomarkers more accurately predict the 5- to 10-year mortality risk than other methods.

Finding out that there are good odds you’ll die in the next five years sounds horrible. For this reason, it’s understandable why many would choose to stay clear of such a test. However, in a medical context, a mortality risk blood test could mean the difference between carrying out a risky surgery and employing some other avenue of treatment for fragile patients.

In the future, the Dutch researchers would like to test how their biomarker score influences patient outcome.

“The currently used metabolomics platform can be incorporated in ongoing clinical studies to explore its value, opening up new avenues for research to establish the utility of metabolic biomarkers in clinical settings,” the authors concluded.

share Share

How Hot is the Moon? A New NASA Mission is About to Find Out

Understanding how heat moves through the lunar regolith can help scientists understand how the Moon's interior formed.

This 5,500-year-old Kish tablet is the oldest written document

Beer, goats, and grains: here's what the oldest document reveals.

A Huge, Lazy Black Hole Is Redefining the Early Universe

Astronomers using the James Webb Space Telescope have discovered a massive, dormant black hole from just 800 million years after the Big Bang.

Did Columbus Bring Syphilis to Europe? Ancient DNA Suggests So

A new study pinpoints the origin of the STD to South America.

The Magnetic North Pole Has Shifted Again. Here’s Why It Matters

The magnetic North pole is now closer to Siberia than it is to Canada, and scientists aren't sure why.

For better or worse, machine learning is shaping biology research

Machine learning tools can increase the pace of biology research and open the door to new research questions, but the benefits don’t come without risks.

This Babylonian Student's 4,000-Year-Old Math Blunder Is Still Relatable Today

More than memorializing a math mistake, stone tablets show just how advanced the Babylonians were in their time.

Sixty Years Ago, We Nearly Wiped Out Bed Bugs. Then, They Started Changing

Driven to the brink of extinction, bed bugs adapted—and now pesticides are almost useless against them.

LG’s $60,000 Transparent TV Is So Luxe It’s Practically Invisible

This TV screen vanishes at the push of a button.

Couple Finds Giant Teeth in Backyard Belonging to 13,000-year-old Mastodon

A New York couple stumble upon an ancient mastodon fossil beneath their lawn.