2023
Clinical experience with the α2A-adrenoceptor agonist, guanfacine, and N-acetylcysteine for the treatment of cognitive deficits in “Long-COVID19”
Fesharaki-Zadeh A, Lowe N, Arnsten A. Clinical experience with the α2A-adrenoceptor agonist, guanfacine, and N-acetylcysteine for the treatment of cognitive deficits in “Long-COVID19”. Neuroimmunology Reports 2023, 3: 100154. DOI: 10.1016/j.nerep.2022.100154.Peer-Reviewed Original ResearchN-acetylcysteineCognitive deficitsΑ2A-adrenoceptor agonistsPrefrontal cortexCOVID19 infectionPlacebo-controlled trialOpen-label treatmentCommon side effectsExecutive functionPFC connectionsBrain fogAcid blockadeLabel treatmentHypotensive episodesGuanfacine treatmentNMDA receptorsPatient brieflySide effectsClinical experienceGuanfacineCognitive impairmentPatientsPrefrontal connectivityDemonstrate efficacyPrefrontal function
2000
The Alpha-2A-Adrenoceptor Agonist, Guanfacine, Increases Regional Cerebral Blood Flow in Dorsolateral Prefrontal Cortex of Monkeys Performing a Spatial Working Memory Task
Avery R, Franowicz J, Studholme C, van Dyck C, Arnsten A. The Alpha-2A-Adrenoceptor Agonist, Guanfacine, Increases Regional Cerebral Blood Flow in Dorsolateral Prefrontal Cortex of Monkeys Performing a Spatial Working Memory Task. Neuropsychopharmacology 2000, 23: 240-249. PMID: 10942848, DOI: 10.1016/s0893-133x(00)00111-1.Peer-Reviewed Original ResearchMeSH KeywordsAdrenergic alpha-2 Receptor AgonistsAdrenergic alpha-AgonistsAnimalsCerebrovascular CirculationCognitionFemaleGuanfacineImage Processing, Computer-AssistedMacaca mulattaMagnetic Resonance ImagingMemoryPrefrontal CortexSpace PerceptionStimulation, ChemicalTomography, Emission-Computed, Single-PhotonConceptsRegional cerebral blood flowCerebral blood flowPrefrontal cortexDorsolateral prefrontal cortexBlood flowAlpha 2A-adrenoceptorsAuditory association areasSuperior temporal cortexBlood flow tracerSPECT measuresAdrenoceptor agonistsAdrenoceptor stimulationAlpha-2aMemory taskAdrenoreceptor agonistIntravenous cathetersGuanfacine treatmentTemporal cortexRCBF valuesAssociation areasBrain regionsGuanfacineCortexSpatial Working Memory taskCognitive performance
1995
Guanfacine Treatment of Comorbid Attention-Deficit Hyperactivity Disorder and Tourette's Syndrome: Preliminary Clinical Experience
CHAPPELL P, RIDDLE M, SCAHILL L, LYNCH K, SCHULTZ R, ARNSTEN A, LECKMAN J, COHEN D. Guanfacine Treatment of Comorbid Attention-Deficit Hyperactivity Disorder and Tourette's Syndrome: Preliminary Clinical Experience. Journal Of The American Academy Of Child & Adolescent Psychiatry 1995, 34: 1140-1146. PMID: 7559307, DOI: 10.1097/00004583-199509000-00010.Peer-Reviewed Original ResearchConceptsYale Global Tic Severity ScaleAttention deficit hyperactivity disorderTourette syndromeContinuous Performance TestHyperactivity disorderOpen-label studyCommon side effectsSeverity of motorComorbid attention deficit hyperactivity disorderSafe alternative therapySignificant decreaseTic Severity ScalePreliminary clinical experienceMajority of subjectsConners' Parent Rating ScaleTransient sedationControlled TrialsAlternative therapiesSedative effectsGuanfacine treatmentPhonic ticsSeverity ScaleSide effectsStimulant medicationTic severityAn Open Trial of Guanfacine in the Treatment of Attention-Deficit Hyperactivity Disorder
Hunt R, Arnsten A, Asbell M. An Open Trial of Guanfacine in the Treatment of Attention-Deficit Hyperactivity Disorder. Journal Of The American Academy Of Child & Adolescent Psychiatry 1995, 34: 50-54. PMID: 7860456, DOI: 10.1097/00004583-199501000-00013.Peer-Reviewed Original ResearchConceptsAttention deficit hyperactivity disorderGreater attentional abilityConners' Parent RatingUse of guanfacineAttentional abilitiesConners' hyperactivityParent ratingsHyperactivity disorderFrustration tolerancePatients' mean scoresSelective binding profileHyperactive childrenLonger excretionGuanfacine treatmentADHDHyperactive behaviorMean scoreSide effectsAlpha-2 noradrenergic agonistPsychiatric outpatientsGuanfacineDouble-blind studyBehavioral changesSedative side effectsOpen trial