Alzheimer's disease & dementia

What happens in brain cells affected by Alzheimer's disease?

Affecting over 50 million people, Alzheimer's disease is the most common form of dementia and primarily occurs in people over the age of 65. The pathology of the disease in the brain is mainly characterized by two factors: ...

Immunology

The molecular underpinnings of immune cell migration

In a new study, researchers from Osaka University discovered a novel molecular mechanism by which immune cells migrate to fight off infections. These findings may help in understanding the development of certain immune deficiency ...

Medical research

Gut epithelium muscles up against infection

To maximize absorption of nutrients from the diet, the intestinal mucous membrane has a large surface area. However, this also makes it vulnerable to attack from aggressive gut microbes. A new study by Uppsala University ...

Diseases, Conditions, Syndromes

What should a successful SARS-CoV-2 vaccine do?

A lot has been written recently about the merits of different potential vaccines for SARS-CoV-2. "Merit" is generally assumed to mean that the vaccine will make us immune. But what, exactly, is immunity, and how would we ...

Psychology & Psychiatry

Scientists unpack how the brain separates present from past dangers

A team of neuroscientists has identified processes the brain undergoes to distinguish real and present dangers from those linked to past experiences in mice. The findings, which appear in the journal Nature, have implications ...

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