Neuropsychobiology最新文献

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Effect of Low-Dose Statins in Addition to Standard Therapy on Brain Perfusion and Neurocognitive Performance in Patients with Major Depressive Disorder. 低剂量他汀类药物加标准治疗对重度抑郁症患者脑灌注和神经认知能力的影响
IF 3.2 4区 心理学
Neuropsychobiology Pub Date : 2022-01-01 Epub Date: 2022-01-28 DOI: 10.1159/000521104
Teresa Massardo, Juan C Quintana, Luis Risco, Sebastian Corral, Jane Spuler, Daniel Vicentini, Gabriel Castro-Muñoz, Byron Riedel, Carolina Villa, Jaime I Pereira
{"title":"Effect of Low-Dose Statins in Addition to Standard Therapy on Brain Perfusion and Neurocognitive Performance in Patients with Major Depressive Disorder.","authors":"Teresa Massardo,&nbsp;Juan C Quintana,&nbsp;Luis Risco,&nbsp;Sebastian Corral,&nbsp;Jane Spuler,&nbsp;Daniel Vicentini,&nbsp;Gabriel Castro-Muñoz,&nbsp;Byron Riedel,&nbsp;Carolina Villa,&nbsp;Jaime I Pereira","doi":"10.1159/000521104","DOIUrl":"https://doi.org/10.1159/000521104","url":null,"abstract":"<p><strong>Introduction: </strong>Major depressive disorder (MDD) is a prevalent condition which has a well-known association with ischemic cardiomyopathy, probably explained by an inflammatory mediator mechanism. Statins, besides reducing cholesterol production, have pleiotropic effects including anti-inflammatory activity. The goal was to evaluate the effect of statins as an addition to standard therapy on mood status, brain perfusion, and neurocognitive performance in MDD.</p><p><strong>Methods: </strong>We studied 20 MDD patients with brain single-photon emission tomography and Cambridge Neuropsychological Test Automated Battery (CANTAB), half randomized to 10 mg of Rosuvastatin or placebo, in addition to selective serotonin reuptake inhibitors (SSRIs) therapy and being reevaluated 3 months later. The images were compared using Statistical Parametric Mapping; clinical scores (Hamilton Depression Score with 17 items and Beck's Depression Inventory) as well as neurocognitive parameters were applied as covariances (CoV) to estimate regional cerebral blood flow (rCBF) changes with both therapies.</p><p><strong>Results: </strong>Clinical scores decreased in both groups (p = 0.0001); Beck's presented a larger decrease with statins. We observed significantly rCBF changes expressed as significant larger clusters of voxels (p < 0.05) in the pre/subgenual anterior cingulate plus orbitofrontal cortex and a small area in the posterior cingulate gyrus in the statins group, whereas it was not observed with placebo, when using clinical scores as CoV. A similar pattern of rCBF changes was present with emotions recognition, attentional, paired associates learning, spatial planning, and working memory tasks.</p><p><strong>Conclusion: </strong>Short-term use of low-dose statins in MDD patients under SSRIs results in important rCBF changes in key mood associated areas to improvement in neurocognitive performance. These findings, even though demonstrated in a small sample, could open a new therapeutic tool in the comprehensive management of this disorder.</p>","PeriodicalId":19239,"journal":{"name":"Neuropsychobiology","volume":"81 4","pages":"271-285"},"PeriodicalIF":3.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39870356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Treatment Response and GWAS Risk Allele rs2514218 (C) of the Dopamine D2 Receptor Gene in Inpatients with Schizophrenia. 住院精神分裂症患者多巴胺D2受体基因rs2514218 (C)的治疗反应与GWAS风险等位基因
IF 3.2 4区 心理学
Neuropsychobiology Pub Date : 2022-01-01 Epub Date: 2021-09-28 DOI: 10.1159/000519155
Margarita A Morozova, Tatyana V Lezheiko, Taissia A Lepilkina, Denis S Burminskiy, Sergey S Potanin, Allan G Beniashvili, George E Rupchev, Vera E Golimbet
{"title":"Treatment Response and GWAS Risk Allele rs2514218 (C) of the Dopamine D2 Receptor Gene in Inpatients with Schizophrenia.","authors":"Margarita A Morozova,&nbsp;Tatyana V Lezheiko,&nbsp;Taissia A Lepilkina,&nbsp;Denis S Burminskiy,&nbsp;Sergey S Potanin,&nbsp;Allan G Beniashvili,&nbsp;George E Rupchev,&nbsp;Vera E Golimbet","doi":"10.1159/000519155","DOIUrl":"https://doi.org/10.1159/000519155","url":null,"abstract":"<p><strong>Introduction: </strong>The pathophysiological mechanisms of acute schizophrenia are largely unknown, but it is widely accepted that dopamine D2 receptors (DRD2s) are involved in psychosis treatments for schizophrenic patients. We suggest that genetic variation in these receptors may play a role in patients' responses to commonly used antipsychotics, particularly D2-blockers.</p><p><strong>Methods: </strong>This study included adult patients with ICD-10 diagnoses of schizophrenia and current acute psychosis who were treated with antipsychotics. All patients underwent genotyping for DRD2 rs2514218 polymorphism. The definition of overall treatment response was based on changes in treatment scheme: no changes indicated a good response, and changes indicated a limited response.</p><p><strong>Results: </strong>There were 275 inpatients (38.1% of whom were female; mean age = 32.7 years, SD = 11.1 years) who met the inclusion criteria. Of the participants, 99 were good responders (34% of whom were female), and 176 were limited responders (40% of whom were female). No differences in demographic, premorbid, or disease characteristics were found. The number of patients that were homozygous for the risk allele was significantly greater in the limited response group than in the good response group.</p><p><strong>Conclusion: </strong>Our findings suggest that the risk variant at the DRD2 locus can be used as an indicator for patients' responses to antipsychotics without direct DRD2-blocking, thereby shortening the time needed for drug selection.</p>","PeriodicalId":19239,"journal":{"name":"Neuropsychobiology","volume":"81 2","pages":"149-155"},"PeriodicalIF":3.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39468482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Grey Matter Volume Reductions of the Left Hippocampus and Amygdala in PTSD: A Coordinate-Based Meta-Analysis of Magnetic Resonance Imaging Studies. 创伤后应激障碍患者左海马和杏仁核灰质体积减少:基于坐标的磁共振成像研究荟萃分析。
IF 3.2 4区 心理学
Neuropsychobiology Pub Date : 2022-01-01 Epub Date: 2022-02-14 DOI: 10.1159/000522003
Antonio Del Casale, Stefano Ferracuti, Andrea Steven Barbetti, Paride Bargagna, Paolo Zega, Alessia Iannuccelli, Federico Caggese, Teodolinda Zoppi, Gabriele Pasquale De Luca, Giovanna Parmigiani, Isabella Berardelli, Maurizio Pompili
{"title":"Grey Matter Volume Reductions of the Left Hippocampus and Amygdala in PTSD: A Coordinate-Based Meta-Analysis of Magnetic Resonance Imaging Studies.","authors":"Antonio Del Casale,&nbsp;Stefano Ferracuti,&nbsp;Andrea Steven Barbetti,&nbsp;Paride Bargagna,&nbsp;Paolo Zega,&nbsp;Alessia Iannuccelli,&nbsp;Federico Caggese,&nbsp;Teodolinda Zoppi,&nbsp;Gabriele Pasquale De Luca,&nbsp;Giovanna Parmigiani,&nbsp;Isabella Berardelli,&nbsp;Maurizio Pompili","doi":"10.1159/000522003","DOIUrl":"https://doi.org/10.1159/000522003","url":null,"abstract":"<p><strong>Introduction: </strong>In recent years, research on posttraumatic stress disorder (PTSD) focused on the description of different biological correlates of illness. Morphological changes of different brain regions were involved in PTSD neurophysiopathology, being related to trauma or considered a resilience biomarker. In this meta-analysis, we aimed to investigate the grey matter changes reported in magnetic resonance imaging (MRI) studies on patients who have developed PTSD compared to exposed subjects who did not show a clinical PTSD onset.</p><p><strong>Methods: </strong>We meta-analysed eight peer-reviewed MRI studies conducted on trauma-exposed patients and reported results corrected for false positives. We then conducted global and intergroup comparisons from neuroimaging data of two cohorts of included subjects. The included studies were conducted on 250 subjects, including 122 patients with PTSD and 128 non-PTSD subjects exposed to trauma.</p><p><strong>Results: </strong>Applying a family-wise error correction, PTSD subjects compared to trauma-exposed non-PTSD individuals showed a significant volume reduction of a large left-sided grey matter cluster extended from the parahippocampal gyrus to the uncus, including the amygdala.</p><p><strong>Conclusions: </strong>These volumetric reductions are a major structural correlate of PTSD and can be related to the expression of symptoms. Future studies might consider these and other neural PTSD correlates, which may lead to the development of clinical applications for affected patients.</p>","PeriodicalId":19239,"journal":{"name":"Neuropsychobiology","volume":"81 4","pages":"257-264"},"PeriodicalIF":3.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39614689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
Impaired Sensorimotor Adaption in Schizophrenia in Comparison to Age-Matched and Elderly Controls. 精神分裂症患者感觉运动适应障碍与同龄和老年对照的比较。
IF 3.2 4区 心理学
Neuropsychobiology Pub Date : 2022-01-01 Epub Date: 2021-11-03 DOI: 10.1159/000518867
Claudia Cornelis, Livia J De Picker, Violette Coppens, Anne Morsel, Maarten Timmers, Glenn Dumont, Bernard G C Sabbe, Manuel Morrens, Wouter Hulstijn
{"title":"Impaired Sensorimotor Adaption in Schizophrenia in Comparison to Age-Matched and Elderly Controls.","authors":"Claudia Cornelis,&nbsp;Livia J De Picker,&nbsp;Violette Coppens,&nbsp;Anne Morsel,&nbsp;Maarten Timmers,&nbsp;Glenn Dumont,&nbsp;Bernard G C Sabbe,&nbsp;Manuel Morrens,&nbsp;Wouter Hulstijn","doi":"10.1159/000518867","DOIUrl":"https://doi.org/10.1159/000518867","url":null,"abstract":"<p><strong>Background: </strong>The \"cognitive dysmetria hypothesis\" of schizophrenia proposes a disrupted communication between the cerebellum and cerebral cortex, resulting in sensorimotor and cognitive symptoms. Sensorimotor adaptation relies strongly on the function of the cerebellum.</p><p><strong>Objectives: </strong>This study investigated whether sensorimotor adaptation is reduced in schizophrenia compared with age-matched and elderly healthy controls.</p><p><strong>Methods: </strong>Twenty-nine stably treated patients with schizophrenia, 30 age-matched, and 30 elderly controls were tested in three motor adaptation tasks in which visual movement feedback was unexpectedly altered. In the \"rotation adaptation task\" the perturbation consisted of a rotation (30° clockwise), in the \"gain adaptation task\" the extent of the movement feedback was reduced (by a factor of 0.7) and in the \"vertical reversal task,\" up- and downward pen movements were reversed by 180°.</p><p><strong>Results: </strong>Patients with schizophrenia adapted to the perturbations, but their movement times and errors were substantially larger than controls. Unexpectedly, the magnitude of adaptation was significantly smaller in schizophrenia than elderly participants. The impairment already occurred during the first adaptation trials, pointing to a decline in explicit strategy use. Additionally, post-adaptation aftereffects provided strong evidence for impaired implicit adaptation learning. Both negative and positive schizophrenia symptom severities were correlated with indices of the amount of adaptation and its aftereffects.</p><p><strong>Conclusions: </strong>Both explicit and implicit components of sensorimotor adaptation learning were reduced in patients with schizophrenia, adding to the evidence for a role of the cerebellum in the pathophysiology of schizophrenia. Elderly individuals outperformed schizophrenia patients in the adaptation learning tasks.</p>","PeriodicalId":19239,"journal":{"name":"Neuropsychobiology","volume":"81 2","pages":"127-140"},"PeriodicalIF":3.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39853978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Dysregulated Diurnal Cortisol Pattern and Heightened Night-Time Cortisol in Individuals with Bipolar Disorder. 双相情感障碍患者昼夜皮质醇模式失调和夜间皮质醇升高。
IF 3.2 4区 心理学
Neuropsychobiology Pub Date : 2022-01-01 DOI: 10.1159/000517343
Dahlia Mukherjee, J Dylan Weissenkampen, Emily Wasserman, Venkatesh Basappa Krishnamurthy, Caitlin E Millett, Stephen Conway, Erika F H Saunders
{"title":"Dysregulated Diurnal Cortisol Pattern and Heightened Night-Time Cortisol in Individuals with Bipolar Disorder.","authors":"Dahlia Mukherjee,&nbsp;J Dylan Weissenkampen,&nbsp;Emily Wasserman,&nbsp;Venkatesh Basappa Krishnamurthy,&nbsp;Caitlin E Millett,&nbsp;Stephen Conway,&nbsp;Erika F H Saunders","doi":"10.1159/000517343","DOIUrl":"https://doi.org/10.1159/000517343","url":null,"abstract":"<p><strong>Introduction: </strong>Hypothalamic-pituitary-adrenal (HPA) axis dysregulation may contribute to the symptom burden in bipolar disorder (BD). Further characterization of cortisol secretion is needed to improve understanding of the connection between mood, sleep, and the HPA axis. Here, we observe diurnal cortisol patterns in individuals with BD and healthy controls (HCs) to determine time points where differences may occur.</p><p><strong>Methods: </strong>Salivary cortisol was measured at 6 time points (wake, 15, 30, and 45 min after wake, between 2:00 and 4:00 p.m. and 10:00 p.m.) for 3 consecutive days in individuals with symptomatic BD (N = 27) and HC participants (N = 31). A general linear model with correlated errors was utilized to determine if salivary cortisol changed differently throughout the day between the 2 study groups.</p><p><strong>Results: </strong>A significant interaction (F = 2.74, df = 5, and p = 0.02) was observed between the time of day and the study group (BD vs. HC) when modeling salivary cortisol over time, indicating that salivary cortisol levels throughout the day significantly differed between the study groups. Specifically, salivary cortisol in BD was elevated compared to HCs at the 10:00 p.m. time point (p = 0.01).</p><p><strong>Conclusion: </strong>Significantly higher levels of cortisol in participants with BD in the night-time suggest that the attenuation of cortisol observed in healthy individuals may be impaired in those with BD. Reregulation of cortisol levels may be a target of further study and treatment intervention for individuals with BD.</p>","PeriodicalId":19239,"journal":{"name":"Neuropsychobiology","volume":"81 1","pages":"51-59"},"PeriodicalIF":3.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000517343","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10804687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Effects of Mindfulness-Based Interventions on Gray Matter Volume in Patients with Opioid Dependence. 正念干预对阿片类药物依赖患者灰质体积的影响。
IF 3.2 4区 心理学
Neuropsychobiology Pub Date : 2022-01-01 DOI: 10.1159/000526952
Robert Christian Wolf, Reham Fahmy, Maha Wasfi, Rania Mamdouh, Kareem Moussa, Mike M Schmitgen, Nadine D Wolf, Dusan Hirjak, Fabio Sambataro, Katharina M Kubera
{"title":"Effects of Mindfulness-Based Interventions on Gray Matter Volume in Patients with Opioid Dependence.","authors":"Robert Christian Wolf,&nbsp;Reham Fahmy,&nbsp;Maha Wasfi,&nbsp;Rania Mamdouh,&nbsp;Kareem Moussa,&nbsp;Mike M Schmitgen,&nbsp;Nadine D Wolf,&nbsp;Dusan Hirjak,&nbsp;Fabio Sambataro,&nbsp;Katharina M Kubera","doi":"10.1159/000526952","DOIUrl":"https://doi.org/10.1159/000526952","url":null,"abstract":"<p><strong>Introduction: </strong>Recently, several mindfulness-based programs showed promising clinical effects in the treatment of psychiatric disorders including substance use disorders. However, very little is known about the effects of mindfulness-based interventions (MBIs) on brain structure in such patients.</p><p><strong>Methods: </strong>This study aimed to detect changes in gray matter volume (GMV) in opioid-dependent patients receiving MBI during their first month of treatment. Thirty patients were assigned to either 3 weeks of MBI (n = 16) or treatment as usual (TAU, n = 14) and were investigated using structural magnetic resonance imaging before and after treatment. Longitudinal pipeline of the Computational Anatomy Toolbox for SPM (CAT12) was used to detect significant treatment-related changes over time. The identified GMV changes following treatment were related to clinically relevant measures such as impulsivity, distress tolerance, and mindfulness.</p><p><strong>Results: </strong>After treatment, increased mindfulness scores were found in individuals receiving MBI compared to TAU. In the MBI group, there were also significant differences with respect to distress tolerance and impulsivity. Effects on mindfulness, distress tolerance, and impulsivity were also found in the TAU group. Longitudinal within-group analysis revealed increased left anterior insula GMV in individuals receiving MBI. Anterior insula volume increase was associated with decreased impulsivity levels. In the TAU group, significant GMV changes were found in the right lingual gyrus and right entorhinal cortex.</p><p><strong>Discussion/conclusion: </strong>MBI can yield significant clinical effects during early abstinence from opioid dependence. MBI is particularly associated with increased insula GMV, supporting an important role of this region in the context of MBI-induced neural changes.</p>","PeriodicalId":19239,"journal":{"name":"Neuropsychobiology","volume":"81 6","pages":"531-538"},"PeriodicalIF":3.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10396388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Genetic Relationships between Attention-Deficit/Hyperactivity Disorder, Autism Spectrum Disorder, and Intelligence. 注意缺陷/多动障碍、自闭症谱系障碍和智力之间的遗传关系。
IF 3.2 4区 心理学
Neuropsychobiology Pub Date : 2022-01-01 DOI: 10.1159/000525411
Shuquan Rao, Ancha Baranova, Yao Yao, Jun Wang, Fuquan Zhang
{"title":"Genetic Relationships between Attention-Deficit/Hyperactivity Disorder, Autism Spectrum Disorder, and Intelligence.","authors":"Shuquan Rao,&nbsp;Ancha Baranova,&nbsp;Yao Yao,&nbsp;Jun Wang,&nbsp;Fuquan Zhang","doi":"10.1159/000525411","DOIUrl":"https://doi.org/10.1159/000525411","url":null,"abstract":"<p><strong>Introduction: </strong>Attention-deficit/hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) commonly co-occur; both traits exert an influence on intelligence scores. Genetic relationships between these three traits are far from being clear.</p><p><strong>Methods: </strong>The summary results of genome-wide association studies of ADHD (20,183 cases and 35,191 controls), ASD (18,381 cases and 27,969 controls), and intelligence (269,867 participants) were used for the analyses. Local genetic correlation analysis and polygenic overlap analysis were used to explore the shared genetic components between ADHD, ASD, and intelligence. Mendelian randomization (MR) analysis was used to examine the causal associations between ADHD, ASD, and intelligence. A cross-trait meta-analysis was performed to identify pleiotropic genetic variants across the three traits.</p><p><strong>Results: </strong>Our results showed that intelligence has a positive and negative genetic correlation with ASD and ADHD, respectively, including three hub genomic regions showing correlated genetic effects across the three traits. Polygenic overlap analysis indicated that all the risk variants contributing to ADHD are overlapped with half of those for intelligence, and the majority of the shared variants have opposite effect directions between them. The majority of risk variants (80%) of ASD are overlapped with almost all the risk variants of intelligence (97%). Notably, some ASD/intelligence overlapping variants displayed opposing effects on these two conditions. MR analysis showed that the genetic liability to higher intelligence was associated with an increased risk for ASD (OR = 1.12) and a decreased risk for ADHD (OR = 0.78). Cross-trait meta-analyses identified 170 pleiotropic genomic loci across the three traits, including 12 novel loci. Functional analyses of the novel genes support their potential involvement in neurodevelopment.</p><p><strong>Conclusion: </strong>Our results suggest that ADHD is associated with inheriting a reduced set of low-intelligence alleles, whereas ASD results from incongruous effects from a mixture of high-intelligence and low-intelligence contributing alleles summed up with additional, ASD-specific risk variants not associated with intelligence.</p>","PeriodicalId":19239,"journal":{"name":"Neuropsychobiology","volume":"81 6","pages":"484-496"},"PeriodicalIF":3.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10408822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 22
The Role of Kynurenines in Cognitive Dysfunction in Bipolar Disorder. 犬尿氨酸在双相情感障碍认知功能障碍中的作用。
IF 3.2 4区 心理学
Neuropsychobiology Pub Date : 2022-01-01 Epub Date: 2021-12-09 DOI: 10.1159/000520152
Kaat Hebbrecht, Manuel Morrens, Erik J Giltay, Alexander L N van Nuijs, Bernard Sabbe, Seline van den Ameele
{"title":"The Role of Kynurenines in Cognitive Dysfunction in Bipolar Disorder.","authors":"Kaat Hebbrecht,&nbsp;Manuel Morrens,&nbsp;Erik J Giltay,&nbsp;Alexander L N van Nuijs,&nbsp;Bernard Sabbe,&nbsp;Seline van den Ameele","doi":"10.1159/000520152","DOIUrl":"https://doi.org/10.1159/000520152","url":null,"abstract":"<p><strong>Introduction: </strong>Chronic low-grade inflammation is suggested to play a pathophysiological role in bipolar disorder (BD) and its related cognitive dysfunctions. Although kynurenine (KYN) pathway metabolites are key inflammatory mediators, studies investigating the association between KYN metabolism and cognition in BD are scarce. We aimed to explore the relationship between KYN metabolism and cognitive functioning across different mood states in BD.</p><p><strong>Methods: </strong>Sixty-seven patients with BD (35 depressed and 32 [hypo] manic) and 29 healthy controls were included. Cognitive functioning was assessed at 3 time intervals (baseline, 4, and 8 months) assessing processing speed, sustained attention, verbal memory, working memory, and response inhibition. Plasma samples for quantification of 3-hydroxykynurenine, quinolinic acid, and kynurenic acid (KYNA) were concurrently provided. Linear mixed models were used for statistical analysis.</p><p><strong>Results: </strong>The manic group showed deficits in all assessed cognitive domains with the exception of verbal memory at all test moments. The bipolar depression group showed deficits in the processing speed at all test moments. Throughout the whole follow-up period, KYNA was significantly lower in both patient groups than in controls. Only in the bipolar depression group, low KYNA was associated with worse global cognitive functioning (B = 0.114, p = 0.02) and slower processing speed in particular (B = 0.139, p = 0.03).</p><p><strong>Conclusion: </strong>Only in the bipolar depression group, lower KYNA was associated with worse cognitive functioning. Future large-scale longitudinal studies are warranted to confirm the role of KYN metabolites in cognitive impairment in patients with BD and the possible therapeutic implications of this relationship.</p>","PeriodicalId":19239,"journal":{"name":"Neuropsychobiology","volume":"81 3","pages":"184-191"},"PeriodicalIF":3.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39705874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Autobiographical Script-Driven Imagery Has No Detectable Effect on Emotion Regulation in Healthy Individuals. 自传体剧本驱动意象对健康个体情绪调节无显著影响。
IF 3.2 4区 心理学
Neuropsychobiology Pub Date : 2022-01-01 Epub Date: 2021-09-27 DOI: 10.1159/000518996
Stephan Köhler, Veith Andreas Weilnhammer, Henrik Walter, Susanne Erk, Philipp Sterzer, Anne Guhn
{"title":"Autobiographical Script-Driven Imagery Has No Detectable Effect on Emotion Regulation in Healthy Individuals.","authors":"Stephan Köhler,&nbsp;Veith Andreas Weilnhammer,&nbsp;Henrik Walter,&nbsp;Susanne Erk,&nbsp;Philipp Sterzer,&nbsp;Anne Guhn","doi":"10.1159/000518996","DOIUrl":"https://doi.org/10.1159/000518996","url":null,"abstract":"<p><strong>Introduction: </strong>Emotion regulation (ER), the ability to actively modulate one's own emotion reactions, likely depends on the individual's current emotional state. Here, we investigated whether negative emotions induced by an interpersonal autobiographic script affect the neuronal processes underlying ER.</p><p><strong>Methods: </strong>Twenty healthy participants were recruited and underwent functional magnetic resonance imaging (fMRI) during performance of distancing, a specific ER strategy, while viewing emotionally arousing pictures. Participants were instructed to either naturally experience (\"permit\" condition) or to actively downregulate (\"regulate\" condition) their emotional responses to the presented stimuli. Before each of the 4 runs in total, a neutral or negative autobiographical audio script was presented. The negative script comprised an emotionally negative event from childhood or adolescence that represented either emotional abuse or emotional neglect. The second event comprised an everyday neutral situation. We aimed at identifying the neural correlates of ER and their modulation by script-driven imagery.</p><p><strong>Results: </strong>fMRI analyses testing for greater responses in the \"regulate\" than the \"permit\" condition replicated previously reported neural correlates of ER in the right dorsolateral prefrontal cortex and the right inferior parietal lobule. A significant ER effect was also observed in the left orbitofrontal cortex. In the amygdala, we found greater responses in the \"permit\" compared to the \"regulate\" condition. We did not observe a significant modulation of the ER effects in any of these regions by the negative emotional state induced by autobiographical scripts. Bayesian statistics confirmed the absence of such modulations by providing marginal evidence for null effects.</p><p><strong>Discussion: </strong>While we replicated previously reported neural correlates of ER, we found no evidence for an effect of mood induction with individualized autobiographical scripts on the neural processes underlying ER in healthy participants.</p>","PeriodicalId":19239,"journal":{"name":"Neuropsychobiology","volume":"81 2","pages":"141-148"},"PeriodicalIF":3.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39454760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Targeting Learning Mechanisms in Addictive Disorders. 成瘾障碍的目标学习机制。
IF 3.2 4区 心理学
Neuropsychobiology Pub Date : 2022-01-01 DOI: 10.1159/000522354
Andreas Heinz, Laura Stefanie Daedelow, Franz Moggi
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