Medical research

Novel nanoparticle enhances radiation tumor killing

Radiation kills tumors by creating oxygen free radicals that damage the tumor DNA. However, the lack of oxygen in the center of tumors blocks the production of free radicals, inhibiting radiation killing. NIBIB researchers ...

Medications

Discovery of a restriction factor for hepatitis B virus

Hepatitis B is a viral liver infection that can lead to acute or chronic conditions. Although there is a vaccine that offers protection against the virus, current treatments which prevent the virus from replicating are not ...

Diabetes

Oxygen-tracking method could improve diabetes treatment

Transplanting pancreatic islet cells into patients with diabetes is a promising alternative to the daily insulin injections that many of these patients now require. These cells could act as a bioartificial pancreas, monitoring ...

Diseases, Conditions, Syndromes

New skin test detects prion infection before symptoms appear

Prions can infect both humans and animals, causing Creutzfeldt-Jakob disease (CJD) in humans, mad cow disease in cattle, and chronic wasting disease in elk and deer. The infectious, misfolded protein particles often go undetected ...

Cardiology

'Good cholesterol' may not always be good

Postmenopausal factors may have an impact on the heart-protective qualities of high-density lipoproteins (HDL) - also known as 'good cholesterol' - according to a study led by researchers in the University of Pittsburgh Graduate ...

Health

Doubt cast over face mask benefit

Face masks are a common sight in some of the world's most polluted cities but a recent study has cast fresh doubt over their effectiveness.

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