2023
An international research agenda for clozapine-resistant schizophrenia
Luykx J, Gonzalez-Diaz J, Guu T, van der Horst M, van Dellen E, Boks M, Guloksuz S, DeLisi L, Sommer I, Cummins R, Shiers D, Lee J, Every-Palmer S, Mhalla A, Chadly Z, Chan S, Cotes R, Takahashi S, Benros M, Wagner E, Correll C, Hasan A, Siskind D, Endres D, MacCabe J, Tiihonen J. An international research agenda for clozapine-resistant schizophrenia. The Lancet Psychiatry 2023, 10: 644-652. PMID: 37329895, DOI: 10.1016/s2215-0366(23)00109-8.Peer-Reviewed Original ResearchConceptsClozapine-resistant schizophreniaQuality of lifeTreatment optionsTreatment-resistant symptomsThird of patientsNew treatment optionsHealth care providersMiddle-income countriesFunctional outcomeInterventional studyUnmet needEpidemiological researchTranslational approachDiagnostic testsPatientsSchizophreniaHealth policyEarly detectionOptionsSymptomsDiagnosisTrials
2021
Study protocol of a randomized, double-blind, placebo-controlled, multi-center trial to treat antipsychotic-induced weight gain: the Metformin-Lifestyle in antipsychotic users (MELIA) trial
de Boer N, Guloksuz S, van Baal C, Willebrands L, Deenik J, Vinkers C, Rossum I, Zinkstok J, Wilting I, Zantvoord J, Backx F, Swildens W, Schouw M, Bogers J, Hulshof F, de Knijff R, Duindam P, Veereschild M, Bak M, Frederix G, de Haan L, van Os J, Cahn W, Luykx J. Study protocol of a randomized, double-blind, placebo-controlled, multi-center trial to treat antipsychotic-induced weight gain: the Metformin-Lifestyle in antipsychotic users (MELIA) trial. BMC Psychiatry 2021, 21: 4. PMID: 33402159, PMCID: PMC7783702, DOI: 10.1186/s12888-020-02992-4.Peer-Reviewed Original ResearchConceptsNetherlands Trial RegisterLifestyle interventionQuality of lifeTreatment inceptionOutcome measuresWeight gainAntipsychotic-induced weight gainSafety of metforminUse of metforminCommon adverse effectsSecondary outcome measuresPrimary outcome measureWeeks of treatmentBody weight lossMulti-center trialType 2 diabetesMajor health problemYears of ageSchizophrenia spectrum disordersTrials RegisterMetabolic syndromeOptimal management strategyExercise programMetformin treatmentDietary consultation
2020
Phenome-wide and genome-wide analyses of quality of life in schizophrenia
Pazoki R, Lin B, van Eijk K, Schijven D, de Zwarte S, Alizadeh B, van Amelsvoort T, Bartels-Velthuis A, van Beveren N, Bruggeman R, Cahn W, de Haan L, Delespaul P, Luykx J, Myin-Germeys I, Kahn R, Schirmbeck F, Simons C, van Os J, van Winkel R, Guloksuz S, Luykx J. Phenome-wide and genome-wide analyses of quality of life in schizophrenia. BJPsych Open 2020, 7: e13. PMID: 33295273, PMCID: PMC7791571, DOI: 10.1192/bjo.2020.140.Peer-Reviewed Original ResearchPolygenic risk scoresRisk scoreClinical phenotypeNon-genetic contributing factorsMajor depressive disorderQuality of lifeDepressive disorderHealthy controlsVulnerable patientsStudy populationHypothesis-generating approachPatientsPsychotic disordersQoLSmall studyClinical interventionsSchizophreniaGenotypic determinantsScoresContributing factorDisordersPhenotypeAssociation
2013
Depressive Symptoms in Crohn's Disease: Relationship with Immune Activation and Tryptophan Availability
Guloksuz S, Wichers M, Kenis G, Russel M, Wauters A, Verkerk R, Arts B, van Os J. Depressive Symptoms in Crohn's Disease: Relationship with Immune Activation and Tryptophan Availability. PLOS ONE 2013, 8: e60435. PMID: 23544139, PMCID: PMC3609785, DOI: 10.1371/journal.pone.0060435.Peer-Reviewed Original ResearchConceptsCrohn's diseaseDisease activityImmune activationDepressive symptomsDepression scoresTrp availabilityΑ treatmentTryptophan availabilityNegative APPsAnti-tumor necrosis factorPast depressive disorderTNF-α treatmentSymptoms of depressionQuality of lifeCD patientsIBDQ scoreImmune markersComorbid depressionDepressive disorderNecrosis factorInflammatory reactionPatientsSymptomsDiseaseTreatment