Immunology

Stress accelerates immune aging, study finds

Stress—in the form of traumatic events, job strain, everyday stressors and discrimination—accelerates aging of the immune system, potentially increasing a person's risk of cancer, cardiovascular disease and illness from ...

Cardiology

Procedure to open blocked carotid arteries tested

(Medical Xpress)—Doctors at Washington University School of Medicine in St. Louis are investigating a minimally invasive procedure to open blocked carotid arteries in patients whose poor health or advanced age makes the ...

Alzheimer's disease & dementia

Is Alzheimer's caused by disruptions to the brain's energy supply?

It is well known that Alzheimer's disease, the most common form of dementia, involves the accumulation of sticky proteins (plaques and tangles) in the brain. But we still don't know what the root cause of the disease is. ...

Cardiology

Stenting blocked bowel arteries saves lives

Stenting reopens completely blocked bowel arteries, preventing damage and even death from a condition that causes individuals severe pain and leads to excessive weight loss, notes research being presented at the Society of ...

Diseases, Conditions, Syndromes

Understanding and preventing gangrene

Dear Mayo Clinic: I have heard that a stubbed toe can lead to gangrene in some individuals. Is that true? What are the signs of gangrene, and how can it be avoided?

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