Medical research

Severe flu risk as immune cells swap with age

Lung infections with the influenza virus or a coronavirus more frequently result in severe disease progression in older people. This is due to an excessive inflammatory reaction that causes damage to the lung tissue. The ...

HIV & AIDS

How HIV infection shrinks the brain's white matter

It's long been known that people living with HIV experience a loss of white matter in their brains. As opposed to "gray matter," which is composed of the cell bodies of neurons, white matter is made up of a fatty substance ...

Immunology

New research may explain severe virus attacks on the lungs

In some cases, immune cells in the lungs can contribute to worsening a virus attack. In a new study, researchers at Karolinska Institutet in Sweden describe how immune cells called macrophages develop in the lungs and which ...

Diseases, Conditions, Syndromes

Why are some COVID-19 infected people asymptomatic?

Researchers worldwide have been surprised to see that individuals can be infected with the SARS-CoV-2 virus—the virus that produces COVID-19—without showing symptoms. Since these individuals expose others to infection ...

Diseases, Conditions, Syndromes

Pneumonia recovery reprograms immune cells of the lung

Researchers have determined that after lungs recover from infection, alveolar macrophages (immune cells that live in the lungs and help protect the lungs against infection) are different in multiple ways and those differences ...

Diseases, Conditions, Syndromes

Anti-TB drugs can increase risk of TB re-infection

Current treatments for tuberculosis (TB) are very effective in controlling TB infection caused by Mycobacterium tuberculosis (Mtb). They don't, however, always prevent reinfection. Why this happens is one of the long-standing ...

Immunology

Scientists stumble upon a model to study a lethal complication

More and more hospitalized patients with sepsis are being diagnosed with a deadly complication characterized by high levels of inflammation. A team of Yale researchers has uncovered clues to the cause of this complication—which ...

Medical research

Researchers breathe new life into COPD research using mouse models

The airways and lungs are affected by a range of diseases, but while some have been well characterized and treated, others, such as chronic obstructive pulmonary disorder (COPD), are still somewhat of an enigma. This condition ...

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