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- Animal research· Arthritis & rheumatology (Hoboken, N.J.)
SIRT6-activating drug reduces osteoarthritis severity in aging mice
In old mice, weekly injections of MDL-800 for 6 months reduced cartilage damage, bone overgrowth, and other signs of osteoarthritis compared to control mice. The drug appeared to reduce DNA damage and activate repair pathways in joint cells.
Why it matters: Osteoarthritis is a common aging-related disease; understanding how to slow joint damage could improve quality of life in older people.
AI-assisted explanation · Evidence assessment pending
Read the study · Arthritis & rheumatology (Hoboken, N.J.) ↗ - Animal research· Nature communications
HMGA1-HP1β peptide therapy extended lifespan in a mouse model of Hutchinson-Gilbert progeria syndrome
Researchers studied the HMGA1-HP1β regulatory axis in a mouse model of Hutchinson-Gilford progeria syndrome (LmnaG609G/G609G mice). They developed a peptide called UHP based on the HMGA1-HP1β binding region and found it reduced cellular senescence markers and significantly extended lifespan in the progeria mice, reportedly by stabilizing HP1β and suppressing senescence-associated secretory factors.
Evidence assessment pending
Read the study · Nature communications ↗