1995
Effects of tryptophan depletion on responses to yohimbine in healthy human subjects
Goddard A, Charney D, Germine M, Woods S, Heninger G, Krystal J, Goodman W, Price L. Effects of tryptophan depletion on responses to yohimbine in healthy human subjects. Biological Psychiatry 1995, 38: 74-85. PMID: 7578653, DOI: 10.1016/0006-3223(94)00223-p.Peer-Reviewed Original ResearchConceptsHealthy human subjectsTryptophan depletionAlpha-2 adrenergic antagonist yohimbinePlacebo-controlled challenge testHuman subjectsAntagonist yohimbineNeurotransmitter systemsSerotonin systemChallenge testPossible functional interactionBiochemical variablesWhole groupFeelings of nervousnessNE functionMarked increaseNorepinephrineConsiderable evidenceFear responsesSubjectsHuman anxietyNervousnessCombination testControl testsFunctional interactionUnique changes
1994
Effects of sleep deprivation on serotonin function in depression
Salomon R, Delgado P, Licinio J, Krystal J, Heninger G, Charney D. Effects of sleep deprivation on serotonin function in depression. Biological Psychiatry 1994, 36: 840-846. PMID: 7893848, DOI: 10.1016/0006-3223(94)90595-9.Peer-Reviewed Original ResearchConceptsUndisturbed sleepSleep deprivationPRL riseDepressed patientsSerotonin functionFemale depressed patientsSD-induced changesIntravenous tryptophanAntidepressant treatmentPRL responseDepressed menTRP infusionScore changeMood changesPatientsMood ratingsMenProlactinConsiderable evidenceWomenLow sensitivitySignificant relationshipDeprivationInfusionSleep