Blood test detects Alzheimer’s disease

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Researchers have created a simple blood test that can detect Alzheimer’s disease.

 The blood test accurately measures one of the proteins—P-tau181—implicated in Alzheimer’s disease (AD), according to a new study.

Blood P-tau181 indirectly measures tau hyperphosphorylation in the brain, which is one of the hallmarks of the disease along with the clumpy plaques caused by the protein amyloid β.

Prior to this discovery, detecting the proteins and confirming an Alzheimer’s disease diagnosis was possible only through expensive PET scans, invasive lumbar punctures, or autopsy.

The search for an Alzheimer’s disease blood test has been years in the making, but a test sensitive enough to detect tau long eluded researchers.

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World’s first full-body medical scanner generates astonishing 3D images

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The new EXPLORER full-body scanner promises faster and more detailed medical imaging(Credit: UC Davis)

After over a decade of development, the world’s first full-body medical scanner has produced its first images. The groundbreaking imaging device is almost 40 times faster than current PET scans and can capture a 3D picture of the entire human body in one instant scan.

Called EXPLORER, the full-body scanner combines positron emission tomography (PET) and X-ray computed tomography (CT). Following years of research, a prototype, primate-sized scanner was revealed in 2016. After expansive testing, the first human-sized device was fabricated in early 2018.

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