2022
Functional Connectivity of the Nucleus Accumbens and Changes in Appetite in Patients With Depression
Kroemer NB, Opel N, Teckentrup V, Li M, Grotegerd D, Meinert S, Lemke H, Kircher T, Nenadić I, Krug A, Jansen A, Sommer J, Steinsträter O, Small DM, Dannlowski U, Walter M. Functional Connectivity of the Nucleus Accumbens and Changes in Appetite in Patients With Depression. JAMA Psychiatry 2022, 79: 993-1003. PMID: 36001327, PMCID: PMC9403857, DOI: 10.1001/jamapsychiatry.2022.2464.Peer-Reviewed Original ResearchConceptsMajor depressive disorderNAcc functional connectivityFunctional connectivityBody weightNucleus accumbensTreatment of MDDResting-state functional connectivityCase-control studySymptom-specific associationsHealthy control participantsIdentification of biomarkersClassification of diagnosesCohort studyMost patientsMean ageDepressive episodeDepressive disorderReduced appetiteMagnetic resonance imaging dataMAIN OUTCOMESubstantial burdenDepressive symptomsPatientsVentromedial prefrontal cortexReward circuit
2020
Identification of a brain fingerprint for overweight and obesity
Farruggia MC, van Kooten MJ, Perszyk EE, Burke MV, Scheinost D, Constable RT, Small DM. Identification of a brain fingerprint for overweight and obesity. Physiology & Behavior 2020, 222: 112940. PMID: 32417645, PMCID: PMC7321926, DOI: 10.1016/j.physbeh.2020.112940.Peer-Reviewed Original ResearchConceptsPercent body fatWaist circumferenceBody fatWhole-brain functional connectivityBrain network patternsGlucose toleranceBlood insulinObesityOverweightPathophysiological phenotypesFunctional connectivity networksFunctional connectivityMilkshake consumptionBrain correlatesBrain fingerprintsBMIAdiposityBrainCircumferenceConnectivity networksFatDiabetesPathophysiologyCentral roleInsulinLoss of nucleus accumbens low-frequency fluctuations is a signature of chronic pain
Makary MM, Polosecki P, Cecchi GA, DeAraujo IE, Barron DS, Constable TR, Whang PG, Thomas DA, Mowafi H, Small DM, Geha P. Loss of nucleus accumbens low-frequency fluctuations is a signature of chronic pain. Proceedings Of The National Academy Of Sciences Of The United States Of America 2020, 117: 10015-10023. PMID: 32312809, PMCID: PMC7211984, DOI: 10.1073/pnas.1918682117.Peer-Reviewed Original ResearchConceptsChronic low back pain patientsLow back pain patientsChronic painPain patientsChronic phaseChronic back pain patientsBack pain patientsRostral anterior cingulate cortexAnterior cingulate cortexAdditional independent datasetsRisk of transitionResting-state activityPersistent painBack painAccumbens volumeHealthy controlsNucleus accumbensPainSeparate cohortPatientsCingulate cortexPrevalent diseaseFunctional connectivityLoss of nucleiSubcortical signatures
2018
Supra-Additive Effects of Combining Fat and Carbohydrate on Food Reward
DiFeliceantonio AG, Coppin G, Rigoux L, Thanarajah S, Dagher A, Tittgemeyer M, Small DM. Supra-Additive Effects of Combining Fat and Carbohydrate on Food Reward. Cell Metabolism 2018, 28: 33-44.e3. PMID: 29909968, DOI: 10.1016/j.cmet.2018.05.018.Peer-Reviewed Original Research