SAH induced expressions of TGF-β1 and CTGF.
rhDecorin improved long term cognitive functional after SAH.
rhDecorin suppressed extracellular matrix accumulation after SAH.
rhDecorin alleviated the incidence of chronic hydrocephalus after SAH.
rhDecorin inhibited the expressions of TGF-β1/Smad/CTGF axis after SAH.