VEGFA and hemoglobin measurement: In brief, Propranolol-treated primary cultured hemangioblastoma (HB) cells decreased the RNA and protein expression levels of HIF-1α and HIF-2α, and therefore the pro-angiogenic and HIF-1α targets such us Endoglin, VEGF, EPO, and SOX. Moreover, VEGF and miR210 plasma levels from treated patients were reduced after treatment with Propranolol19,21.