Oncology & Cancer

New hope for taming triple-negative breast cancer

Disease-free survival is short-lived for women with triple-negative breast cancer—a form of the disease that doesn't respond to hormone drugs and becomes resistant to chemotherapy. Thankfully, a promising line of study ...

Psychology & Psychiatry

Stress hormones: Good or bad for posttraumatic stress disorder risk?

Glucocorticoids, a group of hormones that includes cortisol, are considered stress hormones because their levels increase following stress. When their relationship to stress was first identified, it was shown that the release ...

Immunology

Chain reaction in the human immune system trapped in crystals

The complement system is part of the innate immune system and is composed of about 40 different proteins that work together to defend the body against disease-causing microorganisms. The complement system perceives danger ...

Neuroscience

Metabolism in the brain fluctuates with circadian rhythm

(Medical Xpress)—The rhythm of life is driven by the cycles of day and night, and most organisms carry in their cells a common, (roughly) 24-hour beat. In animals, this rhythm emerges from a tiny brain structure called ...

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