5-MethoxytryptamineReceptors, SerotoninSerotonin AntagonistsSerotonin Receptor AgonistsTryptaminesSerotoninMelatoninReceptors, Serotonin, 5-HT4Receptors, MelatoninAcetylationKetanserinHistone DeacetylasesIndolesSirtuin 1SirtuinsHistonesMuscle ContractionDose-Response Relationship, DrugSirtuin 3Hydroxamic AcidsGuinea PigsHistone Deacetylase InhibitorsHistone Deacetylase 1Sirtuin 2