By Staff at Mayo Clinic.org, for SouthFloridaReporter.com, Nov. 3, 2015 – ROCHESTER, Minn. — Chronic inflammation, closely associated with frailty and age-related diseases, is a hallmark of aging. Mayo Clinic researchers have discovered that inhibiting key enzyme pathways reduces inflammation in human cells in culture dishes and decreases inflammation and frailty in aged mice.
The results appear Monday in Proceedings of the National Academy of Sciences of the United States of America. While further studies are needed, researchers are hopeful that these findings will be a step toward treatments for frailty and other age-related chronic conditions.
In the study, researchers found that Janus kinase (JAK) inhibitors, drugs that work to block activity of JAK enzymes, decreased the factors released by human senescent cells in culture dishes. Senescent cells are cells that contribute to frailty and diseases associated with aging. Also, these same JAK inhibitors reduced inflammatory mediators in mice. Researchers examined aged mice, equivalent to 90-year-old people, before and after JAK inhibitors. Over the course of two months, the researchers found substantial improvement in the physical function of the aged mice, including grip strength, endurance and physical activity.
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