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Superager Brains Contain ‘Super Neurons’ - Neuroscience News

Superager Brains Contain ‘Super Neurons’ - Neuroscience News

Superager Brains Contain ‘Super Neurons’ - Neuroscience News
Sep 30, 2022 2 mins, 8 secs

Neuroscience can involve research from many branches of science including those involving neurology, brain science, neurobiology, psychology, computer science, artificial intelligence, statistics, prosthetics, neuroimaging, engineering, medicine, physics, mathematics, pharmacology, electrophysiology, biology, robotics and technology.

– Neurology research can include information involving brain research, neurological disorders, medicine, brain cancer, peripheral nervous systems, central nervous systems, nerve damage, brain tumors, seizures, neurosurgery, electrophysiology, BMI, brain injuries, paralysis and spinal cord treatments.

Summary: Neurons in the memory-associated entorhinal cortex of super-agers are significantly larger than their cognitively average peers, those with MCI, and even in people up to 30 years younger.

Neurons in an area of the brain responsible for memory (known as the entorhinal cortex) were significantly larger in SuperAgers compared to cognitively average peers, individuals with early-stage Alzheimer’s disease and even individuals 20 to 30 years younger than SuperAgers — who are aged 80 years and older, reports a new Northwestern Medicine study.

These neurons did not harbor tau tangles, a signature hallmark of Alzheimer’s disease.

The study of SuperAgers with exceptional memory was the first to show that these individuals carry a unique biological signature that comprises larger and healthier neurons in the entorhinal cortex that are relatively void of tau tangles (pathology).

The Northwestern SuperAging Research Program studies unique individuals known as SuperAgers, 80+ year-olds who show exceptional memory at least as good as individuals 20 to 30 years their junior. .

Scientists studied the entorhinal cortex of the brain because it controls memory and is one of the first locations targeted by Alzheimer’s disease. The entorhinal cortex comprises six layers of neurons packed on top of one another.Layer II, in particular, receives information from other memory centers and is a very specific and crucial hub along the brain’s memory circuit.  .

In the study, scientists show that SuperAgers harbor large, healthier neurons in layer II of the entorhinal cortex compared to their same-aged peers, individuals with early stages of Alzheimer’s disease and even individuals 20 to 30 years younger.

For the study, scientists examined the brains of six SuperAgers, seven cognitively average elderly individuals, six young individuals and five individuals with early stages of Alzheimer’s

Then they measured the size of neurons in layer II of the entorhinal cortex (compared to layers III and V)

“In this study, we show that in Alzheimer’s, neuronal shrinkage (atrophy) in the entorhinal cortex appears to be a characteristic marker of the disease,” Gefen said. 

and Canada,” said Emily Rogalski, associate director of the Mesulam Center for Cognitive Neurology and Alzheimer’s Disease at Northwestern University Feinberg School of Medicine

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