Complex interplay among cells guides them to where they need to go

Many cells in our bodies are on the move and somehow seem to "know" where to go. But how do they learn the location of their destination? This question is key to understanding phenomena such as the renewal of cells...

Memory training for the immune system

After an infection of the human body with a pathogen, a cascade of reactions will usually be set into motion. Amongst others, specific cells of the immune system known as T cells get activated in the lymph node and will...

Fine-tuning stem cell metabolism prevents hair loss

A team of researchers from Cologne and Helsinki has discovered a mechanism that prevents hair loss: hair follicle stem cells, essential for hair to regrow, can prolong their life by switching their metabolic state in response to low oxygen concentration...

Nerve cells let others ‘listen in’

How many "listeners" a nerve cell has in the brain is strictly regulated. This is shown by an international study led by the University College London and the universities of Bonn, Bordeaux and Milton Keynes (England). In the environment of...

Patients’ breathing test comes up short on accuracy, study finds

A routine test used to monitor patients' breathing may be unreliable and putting them at risk, a study suggests. Incorrect results can mean clinical staff fail to spot how unwell a patient with respiratory problems is becoming, researchers say. This...

These COVID-19 symptoms are more concerning for kids than the sniffles: B.C. doctor

VANCOUVER -- When it comes to COVID-19 symptoms, there are some that parents of young kids should be more wary of, a B.C. doctor says. Dr. Rhonda Low, a physician based in Vancouver, says sneezing and sore throats don't necessarily...

Social media use linked with depression, secondary trauma during COVID-19

Can't stop checking social media for the latest COVID-19 health information? You might want to take a break, according to researchers at Penn State and Jinan University who discovered that excessive use of social media for COVID-19 health information is...

Identical signs of brain damage in sleep apnea and Alzheimer’s

New research has confirmed long-suspected links between sleep apnea and Alzheimer's disease, finding identical signs of brain damage in both conditions. While the cause of Alzheimer's disease remains a mystery, amyloid plaques that are toxic to brain cells are known...

Many ventilation systems may increase risk of COVID-19 exposure, study suggests

Ventilation systems in many modern office buildings, which are designed to keep temperatures comfortable and increase energy efficiency, may increase the risk of exposure to the coronavirus, particularly during the coming winter, according to research published in the Journal of...

Genetic risk of developing obesity is driven by variants that affect the brain

Over the past decade, scientists have identified hundreds of different genetic variants that increase a person's risk of developing obesity. But a lot of work remains to understand how these variants translate into obesity. Now scientists at the University of...
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