However , while the drug delayed the onset of ALS , it did not increase lifespan or prevent denervation .
Valproic acid in mice studies restored histone acetylation levels , increased levels of pro-survival factors , and mice showed improved motor performance .
While the drug delayed the onset of ALS , it did not increase lifespan or prevent denervation .
Valproic acid in mice studies restored histone acetylation levels , increased levels of pro-survival factors , and mice showed improved motor performance .