A new study from the National Institutes of Health found signs of amyotrophic lateral sclerosis, or ALS, can be found in blood samples.

To diagnose ALS now, doctors rely on symptoms and neurological tests. The study findings could help lead to early detection.

Blood test for ALS

Big picture view:

Researchers from various departments of the institute found certain proteins in blood can accurately detect ALS long before symptoms emerge.

For context :

Many doctors struggle to confirm the diagnosis before symptoms get severe, and people with ALS often die within 2 to 4 years after symptoms start – bringing a critical need for early detection, according to NIH .

By the numbers:

The study team found 33 proteins that distinguish ALS from other neurological conditions. Only two o

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