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 ...

Health

Marijuana use linked to epigenetic changes

Recent and long-term marijuana use is linked to changes in the human epigenome, a new Northwestern Medicine study published in Molecular Psychiatry has found.

Genetics

The man who is aging too fast

Nobuaki Nagashima was in his mid-20s when he began to feel like his body was breaking down. He was based in Hokkaido, the northernmost prefecture of Japan, where for 12 years he had been a member of the military, vigorously ...

Arthritis & Rheumatism

How to rewind the clock on arthritic cartilage

A new study in Aging Cell describes how a key protein called Signal Transducer and Activator of Transcription 3 (STAT3) might turn back the clock on aging cartilage that leads to osteoarthritis.

HIV & AIDS

Research links HIV to age-accelerating cellular changes

People undergoing treatment for HIV-1 have an increased risk for earlier onset of age-related illnesses such as some cancers, renal and kidney disease, frailty, osteoporosis and neurocognitive disease. But is it because of ...

Medical research

Epigenetic clock predicts life expectancy

UCLA geneticist Steve Horvath led a team of 65 scientists in seven countries to record age-related changes to human DNA, calculate biological age and estimate a person's lifespan. A higher biological age—regardless of chronological ...

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