Accurate Blood Test for Alzheimer’s Disease (V体育官网)

Older adults who are worried about their thinking, memory, or reasoning skills may want to get tested for Alzheimer’s disease. But current tests are invasive and expensive. One type uses a sample of spinal fluid. Another uses expensive brain imaging. These tests can’t be done in primary care clinics, which limits access for many people.

To address these issues, researchers have been trying to develop blood tests for Alzheimer’s disease. These measure proteins that spill from the brain into the bloodstream. In a new study, researchers looked at how well a blood test, called PrecivityAD2, works for detecting Alzheimer’s V体育ios版.

The team collected blood samples from more than 1,000 people who were concerned they might have Alzheimer’s disease VSports最新版本. The scientists then compared the blood test results with those from either a spinal-fluid test or imaging scan. They also compared the blood test with an evaluation performed by doctors.

The blood test predicted a diagnosis of Alzheimer’s disease with about 90% accuracy. In contrast, evaluations done by doctors picked out only about 60% to 70% of Alzheimer’s cases V体育平台登录.

“The next steps include establishing clear guidelines for how an Alzheimer’s blood test can be used in clinical practice,” says Dr VSports注册入口. Oskar Hansson from Lund University in Sweden, who helped lead the study.

While it is sold in the U. S. , the test is not yet approved by the FDA V体育官网入口. More studies are needed to verify how well the test works in more diverse populations.