Scientists reverse liver cell aging, cutting Alzheimer's linked protein by 50%
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Dr Singularity@Dr_Singularity𝕏Scientists reverse liver cell aging, cutting Alzheimer's linked protein by 50%
Researchers at the University of Southern California have achieved a remarkable result: rejuvenating aging liver cells in elderly rats in just 2 weeks, restoring their ability to remove harmful substances from the bloodstream.
Using an experimental drug called cinaciguat, they
Reduced amyloid beta by approximately 50%, bringing blood levels back to those seen in young rats. Amyloid-beta is strongly associated with Alzheimer's disease.
Restored LDL (bad cholesterol) to youthful levels, suggesting potential benefits for cardiovascular health.
Reversed key signs of cellular aging in the liver's specialized blood vessel lining cells, reopening microscopic pores that deteriorate with age.
Restored an important cellular communication pathway that helps the liver clear harmful substances from circulation.
The exciting implication here is that rejuvenating one organ might help protect others, potentially opening a new route toward preventing multiple age related diseases simultaneously.
Researchers at the University of Southern California have achieved a remarkable result: rejuvenating aging liver cells in elderly rats in just 2 weeks, restoring their ability to remove harmful substances from the bloodstream.
Using an experimental drug called cinaciguat, they
Reduced amyloid beta by approximately 50%, bringing blood levels back to those seen in young rats. Amyloid-beta is strongly associated with Alzheimer's disease.
Restored LDL (bad cholesterol) to youthful levels, suggesting potential benefits for cardiovascular health.
Reversed key signs of cellular aging in the liver's specialized blood vessel lining cells, reopening microscopic pores that deteriorate with age.
Restored an important cellular communication pathway that helps the liver clear harmful substances from circulation.
The exciting implication here is that rejuvenating one organ might help protect others, potentially opening a new route toward preventing multiple age related diseases simultaneously.
This is a real study, but it's an animal study, and the X post stretches it. The work is from the Keck School of Medicine of USC and was published in the Journal of Biological Chemistry (de Leve et al., 2026, "Reversing liver sinusoidal endothelial aging restores clearance of amyloid-beta and LDL"). The team gave cinaciguat to aged rats for two weeks. In those rats, blood levels of amyloid beta fell by about half, to roughly the level seen in young rats, and LDL cholesterol dropped to youthful levels too. Untreated old rats showed no such change.
What was measured: the drug reopened the tiny pores (fenestrations) in liver sinusoidal endothelial cells, the filter lining the liver's blood vessels, and restored a signal (HB-EGF) to nearby liver cells. The study measured blood levels, not brain plaques.
What it doesn't show: the authors say lowering blood amyloid beta doesn't necessarily reduce plaques in the brain or prevent Alzheimer's. They plan further rat studies to test that. The post's line about "reversing liver cell aging" and its hint at heart and brain benefits go beyond what was tested. There's no human data here.
Sources: Keck School of Medicine of USC news release and ScienceDaily's summary.
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