Acid CeramidaseSubarachnoid HemorrhageVasospasm, IntracranialCyclin B2Neutral CeramidaseSphingolipidsCeramidasesAdrenal CortexBiosynthetic PathwaysGlasgow Coma ScaleCeramidesIntracranial AneurysmSphingosineAdrenocorticotropic HormoneGene Knockdown TechniquesAcetylationCyclic AMPTreatment OutcomeProspective StudiesSeverity of Illness IndexPromoter Regions, GeneticTime FactorsSignal TransductionTranscription, Genetic