Immunology

Research identifies obesity and infection link

The list of diseases and conditions complicated by obesity is a long one; it includes heart disease, cancer, diabetes and impaired wound healing, as well as skin infections. It is not always clear, however, in what way this ...

Medical research

Scientists design way to track steps of cells' development

Scientists at Washington University School of Medicine in St. Louis have developed a new tool described as a "flight data recorder" for developing cells, illuminating the paths cells take as they progress from one type to ...

Medical research

Mouse and human skin cells produce melanin on a 48-hour cycle

Researchers have discovered that mouse skin and skin cells from humans produce pigmentation in response to sunlight on a 48-hour cycle. They observed that exposing skin to ultraviolet light every 2 days yielded darker pigmentation ...

Medical research

Researchers transform human blood cells into functional neurons

Human immune cells in blood can be converted directly into functional neurons in the laboratory in about three weeks with the addition of just four proteins, researchers at the Stanford University School of Medicine have ...

Neuroscience

How a light touch can spur severe itching

For some people, particularly those who are elderly, even a light touch of the skin or contact with clothing can lead to unbearable itching. What's worse, anti-itch treatments, including hydrocortisone, don't provide much ...

Medical research

Hairy skin grown from mouse stem cells

Indiana University School of Medicine researchers have cultured the first lab-grown skin tissue complete with hair follicles. This skin model, developed using stem cells from mice, more closely resembles natural hair than ...

Medical research

Human skin cells transformed directly into motor neurons

Scientists working to develop new treatments for neurodegenerative diseases have been stymied by the inability to grow human motor neurons in the lab. Motor neurons drive muscle contractions, and their damage underlies devastating ...

Medical research

Cellular reprogramming reverses signs of aging

Graying hair, crow's feet, an injury that's taking longer to heal than when we were 20—faced with the unmistakable signs of aging, most of us have had a least one fantasy of turning back time. Now, scientists at the Salk ...

Medical research

Lab-grown stem cells regenerate monkey hearts: study

In a step forward for organ regeneration, stem cells grown from a single monkey's skin cells revitalised the damaged hearts of five sick macaques, scientists reported Monday.

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