Apolipoprotein A1 and Lipoprotein(a) as Biomarkers for the “Penumbra Freezing” in Acute Ischemic Stroke: Insights From a Case-Control and Mendelian Randomization Study

ApoA1 and Lp(a) are promising biomarkers for identifying AIS patients eligible for "penumbra freezing," suggesting the potential to extend the treatment window.