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Posts tagged “alzheimer’s disease

Brain’s immune system could be harnessed to fight Alzheimer’s

Brain's immune system could be harnessed to fight Alzheimer's

A new study suggests that the brain’s immune system could potentially be harnessed to help clear the amyloid plaques that are a hallmark of Alzheimer’s disease.

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Don’t I know that guy? Neuroscientists pinpoint part of the brain that deciphers memory from new experience

Don't I know that guy? Neuroscientists pinpoint part of the brain that deciphers memory from new experience
Don't I know that guy? Neuroscientists pinpoint part of the brain that deciphers memory from new experience

Research assistant Jeremy Johnson feeds a rat on the behavioral track used to determine where the brain decides what is new and what is familiar.
Image credit goes to: Johns Hopkins University

You see a man at the grocery store. Is that the fellow you went to college with or just a guy who looks like him? One tiny spot in the brain has the answer. Neuroscientists have identified the part of the hippocampus that creates and processes this type of memory, furthering our understanding of how the mind works, and what’s going wrong when it doesn’t.

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Can your brain control how it loses control?

Can your brain control how it loses control?

A new study may have unlocked understanding of a mysterious part of the brain — with implications for neurodegenerative conditions such as Alzheimer’s. The results open up new areas of research in the pursuit of neuroprotective therapies.

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Study shows long-term effects of type 2 diabetes on the brain, thinking

diabetic blood test

In just two years, people with type 2 diabetes experienced negative changes in their ability to regulate blood flow in the brain, which was associated with lower scores on tests of cognition skills and their ability to perform their daily activities, according to a new study.

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Novel DNA repair mechanism brings new horizons

RNA Polymerase

Estimated structure of the nucleosomal DNA loops, which are temporarily formed during transcription of chromatin containing intact DNA by RNA polymerase II (Pol II). In the presence of a single-strand DNA break, the loop structure likely changes, preventing rotation of the RNA polymerase along the DNA helix (orange arrow).
Image credit goes to: Nadezhda S. Gerasimova et al

The DNA molecule is chemically unstable giving rise to DNA lesions of different nature. That is why DNA damage detection, signaling and repair, collectively known as the DNA damage response, are needed. A group of researchers discovered a new mechanism of DNA repair, which opens up new perspectives for the treatment and prevention of neurodegenerative diseases.

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Cell density remains constant as brain shrinks with age

Brain cell density MRI

Brain cell density remains constant with age among cognitively normal adults. Image credit goes to: Dr. Keith Thulborn

New, ultra-high-field magnetic resonance images (MRI) of the brain by researchers at the University of Illinois at Chicago provide the most detailed images to date to show that while the brain shrinks with age, brain cell density remains constant. The images provide the first evidence that in normal aging, cell density is preserved throughout the brain, not just in specific regions, as previous studies on human brain tissue have shown.

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