Tau proteins play an important role in Alzheimer's disease. Tau helps to stabilize neurons in the brain, but in Alzheimer's disease, tau proteins can misfold and tangle inside neurons. These tangles ...

Researchers used a novel PET tracer to visualize how ketamine alters AMPA receptor distribution in the brains of patients with treatment-resistant depression. Receptor density increased in cortical ...

Major depressive disorder (MDD) is one of the leading causes of disability worldwide, and approximately 30% of patients develop treatment-resistant depression (TRD), a condition that does not respond ...

Researchers use AI and postmortem tissue to reveal that tau PET scans are often influenced by iron and neuroinflammation rather than tau tangles alone.

Dr. Gary Small answers the question: 'MRI, PET Scan for Alzheimer's Diagnosis?' May 4, 2009 -- Question: When are imaging diagnostics, such as an MRI or PET scan, used to determine whether I have ...

At the Yale Positron Emission Tomography (PET) Center, an ultra-high-performance brain-dedicated scanner called the NeuroEXPLORER (NX) is redefining what is possible in brain PET imaging. Subscribe to ...

PET and MRI scans may together distinguish a new type of dementia from Alzheimer’s disease (AD), a 2026 retrospective, ...

A new brain-imaging study has revealed how ketamine produces its fast antidepressant effects in people with treatment-resistant depression. Researchers tracked changes in a critical brain receptor ...

Biologically speaking, there is no organ as vital or complex as the brain. And yet, the brain still remains somewhat a of a mystery—there’s a lot that even experts don’t know. Another troubling fact ...

PET scans can light up tumors in the body and help doctors determine if they are cancerous or benign (noncancerous). The results of a PET scan help guide medical decisions. A PET scan is a type of ...

Tau proteins play an important role in our normal brain function, mainly by helping to stabilize neurons in the brain. But in Alzheimer’s disease, tau proteins can misfold and tangle inside neurons.