Magda Malewska-Kasprzak, A. Permoda, J. Rybakowski
{"title":"Dysfunction of the Purinergic System in Bipolar Disorder","authors":"Magda Malewska-Kasprzak, A. Permoda, J. Rybakowski","doi":"10.1159/000520146","DOIUrl":"https://doi.org/10.1159/000520146","url":null,"abstract":"Objective: To verify the purinergic hypothesis of bipolar disorder (BD), we assessed the concentration of various components of the purinergic system in manic and depressed bipolar patients. Methods: Sixty-two patients (19 male and 43 female), aged 22–69 (49 ± 14) years, with BD were studied. Twenty-three patients (9 male and 14 female) were assessed during a manic episode and subsequent remission, and 39 patients (10 male and 29 female) were investigated in a depressive episode and the following remission. Twenty-two healthy subjects (8 male and 14 female), aged 19–70 (41 ± 14) years, served as the control group (CG). The severity of symptoms was evaluated using the Hamilton Depression Rating Scale (HDRS) and the Young Mania Rating Scale (YMRS). The concentrations of uric acid (UA) were estimated by the uricase-based method, whereas xanthine dehydrogenase (XDH), adenosine (Ado), and adenosine deaminase (ADA) by ELISA. Results: The mean score in the acute episode was 32 ± 8 points in the YMRS for mania and 31 ± 8 in the HDRS for depression. UA levels were significantly higher in female bipolar patients compared to the females in the CG. The concentrations of XDH, Ado, and ADA were significantly lower in bipolar patients both during an acute episode and remission compared to CG. Conclusions: A significant dysfunction of the purinergic system in patients with BD was observed. In most instances, the disturbances were not different in the acute episode than in remission what qualifies them as trait dependent. The results may confirm the role of the purinergic system in the pathogenesis of BD.","PeriodicalId":19239,"journal":{"name":"Neuropsychobiology","volume":"81 1","pages":"265 - 270"},"PeriodicalIF":3.2,"publicationDate":"2022-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49288466","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}
H. Noyan, A. Hamamci, Z. Firat, A. Sarsilmaz, A. Uçok
{"title":"Menstrual Cycle-Related Changes in Women with Schizophrenia: A Resting-State fMRI Study","authors":"H. Noyan, A. Hamamci, Z. Firat, A. Sarsilmaz, A. Uçok","doi":"10.1159/000522002","DOIUrl":"https://doi.org/10.1159/000522002","url":null,"abstract":"Introduction: Different influences of ovarian hormones in schizophrenia (SCZ) have been reported, but no study to date has assessed their effects on the brain dynamics at rest. The present study aimed to examine the hormonal and clinical changes related to the menstrual cycle and alterations in the resting-state functional connectivity (RS-FC) depending on cycle phase and/or hormonal fluctuations in SCZ. Method: This study was conducted based on both between- and within-subject experimental designs, including 13 clinically stable female patients with SCZ (32 ± 7.7 years) and 13 healthy women (30 ± 7.3 years). RS-functional magnetic resonance imaging (fMRI) scanning, as well as hormonal and clinical assessments, was applied to each participant twice during two cycle phases: early follicular and mid-luteal. Results: A difference in mid-luteal progesterone levels was found between groups, with a large effect size (Cohen’s d) of 0.8 (p < 0.05). Also, the estradiol levels negatively correlated with the negative symptom severity of the patients during their mid-luteal phase. In the patients, estrogen positively correlated with the auditory network connectivity in the left amygdala during the early follicular phase. In the controls, progesterone had positive correlations with the connectivity of the posterior default mode and the left frontoparietal networks in the bilateral precuneus during the early follicular phase and had a negative correlation with the executive control network connectivity in the mid-luteal phase. Conclusion: The present study showed hormonal differences between groups and suggested that the levels of cycle-dependent hormones might be associated with the changes in clinical symptom severity and the RS-FC in the groups. Our RS-fMRI findings warrant further investigation.","PeriodicalId":19239,"journal":{"name":"Neuropsychobiology","volume":"81 1","pages":"296 - 310"},"PeriodicalIF":3.2,"publicationDate":"2022-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47996580","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}
{"title":"Front & Back Matter","authors":"C. Cowan, B. Leonard, P. Monteleone, G. Okugawa","doi":"10.1159/000522359","DOIUrl":"https://doi.org/10.1159/000522359","url":null,"abstract":"","PeriodicalId":19239,"journal":{"name":"Neuropsychobiology","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43161244","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}
{"title":"Risk of Major Mental Disorder after Severe Bacterial Infections in Children and Adolescents: A Nationwide Longitudinal Study.","authors":"Tien-Wei Hsu, Che-Sheng Chu, Shih-Jen Tsai, Ya-Mei Bai, Tung-Ping Su, Tzeng-Ji Chen, Mu-Hong Chen, Chih-Sung Liang","doi":"10.1159/000526984","DOIUrl":"https://doi.org/10.1159/000526984","url":null,"abstract":"<p><strong>Introduction: </strong>Evidence has suggested an association between bacterial infection and increased risk of subsequent major mental disorders (MMDs). Whether such association varies with different pathogens remains unclear. We aimed to investigate the risk of subsequent MMDs after exposure to bacterial pathogens in children and adolescents.</p><p><strong>Methods: </strong>Between 1997 and 2012, we enrolled a nationwide cohort of 14,024 children and adolescents with hospitalized bacterial infection, and noninfected controls were 1:4 matched for demographics. There were 11 investigated pathogens, namely, Streptococcus, Staphylococcus, Pseudomonas, Klebsiella, Hemophilus, Mycoplasma, Tuberculosis, Meningococcus, Escherichia, Chlamydia, and Scrub typhus. The primary outcomes were the subsequent risk of seven MMDs, namely, autism spectrum disorder (ASD), attention-deficiency hyperactivity disorder (ADHD), obsessive-compulsive disorder (OCD), tic disorder, schizophrenia, bipolar disorder, and depressive disorder. The secondary outcomes were the subsequent risk of exposure to psychotropic medications.</p><p><strong>Results: </strong>Pooled bacterial infection was associated with increased risk of the six MMDs - ASD (reported as hazard ratios with 95% confidence intervals: 13.80; 7.40-25.75), ADHD (6.93; 5.98-8.03), OCD (3.93; 1.76-8.76), tic disorder (6.19; 4.44-8.64), bipolar disorder (2.50; 1.28-4.86), and depressive disorder (1.93; 1.48-2.51) - and exposure to four psychotropic medications, including ADHD drugs (11.81; 9.72-14.35), antidepressants (2.96; 2.45-3.57), mood stabilizers (4.51; 2.83-7.19), and atypical antipsychotics (4.23; 3.00-5.96) compared to controls. The associations among MMDs and specific pathogens varied. Importantly, Streptococcus was associated with the most MMDs (six MMDs), and ADHD was associated with eight bacterial pathogen infections.</p><p><strong>Conclusions: </strong>After bacterial infection, the risk of MMDs increased in children and adolescents compared to controls, and such associations varied with different pathogens. Future studies are warranted to validate our study findings and investigate the potential mechanisms.</p>","PeriodicalId":19239,"journal":{"name":"Neuropsychobiology","volume":"81 6","pages":"539-549"},"PeriodicalIF":3.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10701766","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}
Erik Ganesh Iyer Søegaard, Zhanna Kan, Hans Christian Dalsbotten Aass, Rishav Koirala, Edvard Hauff, Suraj Bahadur Thapa
{"title":"Abnormal Cytokines in Trauma Patients Explained by Obesity, Musculoskeletal Disease, Smoking, and Lung Disease.","authors":"Erik Ganesh Iyer Søegaard, Zhanna Kan, Hans Christian Dalsbotten Aass, Rishav Koirala, Edvard Hauff, Suraj Bahadur Thapa","doi":"10.1159/000526806","DOIUrl":"https://doi.org/10.1159/000526806","url":null,"abstract":"<p><strong>Introduction: </strong>Low-grade inflammation observed through abnormal plasma cytokine levels has been associated with post-traumatic stress disorder (PTSD). It is not clear whether PTSD independently causes the inflammation or if it is mainly through co-occurring somatic factors such as smoking and obesity. We wanted to explore the effects of biopsychosocial factors on cytokine levels in a clinical setting.</p><p><strong>Methods: </strong>The sample consisted of 51 patients with PTSD, 58 trauma patients without PTSD, and 40 matched controls. We selected cytokines and relevant risk factors for systemic inflammation through pairwise correlations. Then, we used linear regression to analyze the individual and combined effects of these on the (Log10) cytokines, particularly estimating the effect of PTSD adjusted for other factors.</p><p><strong>Results: </strong>Higher age, female gender, cigarette smoking, presence of lung and musculoskeletal disease, use of antipsychotic medication, and higher BMI were correlated with higher levels of interleukins IL-1RA, IL-2RA, and IL-6. In the adjusted regression analysis, higher BMI was associated with increased IL-1RA (B = 0.06, p < 0.01), IL-2RA (B = 0.01, p < 0.01), and IL-6 (B = 0.01, p = 0.03). Presence of musculoskeletal disease was associated with increased IL-1RA (B = 0.72, p < 0.01) and IL-6 (B = 0.16, p = 0.01), and decreased IL-2RA (B = -0.09, p < 0.01). Cigarette smoking (B = 0.16, p = 0.01) and presence of lung disease (B = 0.14, p = 0.02) were associated with increased IL-6. PTSD diagnosis was associated with decreased IL-2RA (B = -0.06, p = 0.04).</p><p><strong>Discussion/conclusion: </strong>Altered cytokine levels in distressed trauma-affected individuals are probably mostly through co-occurring risk factors and not PTSD diagnosis. Increased BMI and musculoskeletal (pain) disease may be particularly strong risk factors and should be addressed.</p>","PeriodicalId":19239,"journal":{"name":"Neuropsychobiology","volume":"81 6","pages":"516-530"},"PeriodicalIF":3.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10342849","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}
NeuropsychobiologyPub Date : 2022-01-01Epub Date: 2021-08-25DOI: 10.1159/000517858
Sara Lena Weinhold, Julia Lechinger, Jasper Ittel, Romina Ritzenhoff, Henning Johannes Drews, Klaus Junghanns, Robert Göder
{"title":"Dysfunctional Overnight Memory Consolidation in Patients with Schizophrenia in Comparison to Healthy Controls: Disturbed Slow-Wave Sleep as Contributing Factor?","authors":"Sara Lena Weinhold, Julia Lechinger, Jasper Ittel, Romina Ritzenhoff, Henning Johannes Drews, Klaus Junghanns, Robert Göder","doi":"10.1159/000517858","DOIUrl":"https://doi.org/10.1159/000517858","url":null,"abstract":"<p><strong>Introduction: </strong>Memory deficiency has been shown in schizophrenia patients, but results on the role of sleep parameters in overnight consolidation of associative verbal memory are still missing. Therefore, the aim of our study was to elucidate underlying processes of impaired sleep-related consolidation of associative word pairs in schizophrenia including standard sleep parameters as well as sleep spindle counts and spectral analysis.</p><p><strong>Methods: </strong>Eighteen stably medicated schizophrenia patients and 24 healthy age-matched controls performed an associative declarative memory task before and after polysomnographic recordings. Part of the participants expected verbal associative memory testing in the morning, while the others did not. Furthermore, participants filled in self-rating questionnaires of schizophrenia-typical experiences (Eppendorf Schizophrenia Inventory [ESI] and Psychotic Symptom Rating Scale).</p><p><strong>Results: </strong>Schizophrenia patients performed worse in verbal declarative memory in the evening as well as in overnight consolidation (morning compared to evening performance). While duration of slow-wave sleep was nearly comparable between groups, schizophrenia patients showed lower sleep spindle count, reduced delta power during slow-wave sleep, and reduced spindle power during the slow oscillation (SO) up-state. In healthy but not in schizophrenia patients, a linear relationship between overnight memory consolidation and slow-wave sleep duration as well as delta power was evident. No significant effect with respect to the expectation of memory retrieval was evident in our data. Additionally, we observed a negative linear relationship between total number of sleep spindles and ESI score in healthy participants.</p><p><strong>Discussion/conclusion: </strong>As expected, schizophrenia patients showed deficient overnight verbal declarative memory consolidation as compared to healthy controls. Reduced sleep spindles, delta power, and spindle power during the SO up-state may link sleep and memory deficiency in schizophrenia. Additionally, the absence of a linear relationship between sleep-related memory consolidation and slow-wave sleep as well as delta power suggests further functional impairments in schizophrenia. Note that this conclusion is based on observational data. Future studies should investigate if stimulation of delta waves during sleep could improve memory performance and thereby quality of life in schizophrenia.</p>","PeriodicalId":19239,"journal":{"name":"Neuropsychobiology","volume":"81 2","pages":"104-115"},"PeriodicalIF":3.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39357793","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}
NeuropsychobiologyPub Date : 2022-01-01Epub Date: 2022-02-07DOI: 10.1159/000521565
Chiara Massullo, Francesco Saverio Bersani, Giuseppe Alessio Carbone, Angelo Panno, Benedetto Farina, Eric Murillo-Rodríguez, Tetsuya Yamamoto, Sérgio Machado, Henning Budde, Claudio Imperatori
{"title":"Decreased Resting State Inter- and Intra-Network Functional Connectivity Is Associated with Perceived Stress in a Sample of University Students: An eLORETA Study.","authors":"Chiara Massullo, Francesco Saverio Bersani, Giuseppe Alessio Carbone, Angelo Panno, Benedetto Farina, Eric Murillo-Rodríguez, Tetsuya Yamamoto, Sérgio Machado, Henning Budde, Claudio Imperatori","doi":"10.1159/000521565","DOIUrl":"https://doi.org/10.1159/000521565","url":null,"abstract":"<p><strong>Introduction: </strong>Although the study of the Triple Network (TN) model has gained attention in the exploration of stress-related processes, the neurophysiological mechanisms of TN in relation to perceived stress have been relatively understudied in nonclinical samples so far. The main objective of the present study was to investigate, in a sample of university students, the association of perceived stress with resting state electroencephalography (EEG) functional connectivity in the TN.</p><p><strong>Methods: </strong>Ninety university students (40 males and 50 females; mean age 22.30 ± 2.43 years; mean educational level 16.60 ± 1.62 years) were enrolled. EEG data were analyzed through the exact low-resolution electromagnetic tomography (eLORETA).</p><p><strong>Results: </strong>Higher levels of perceived stress were associated with decreased delta EEG connectivity within the central executive network (CEN) and between the CEN and the salience network (SN). Higher levels of perceived stress were also associated with decreased theta EEG connectivity between the CEN and the SN. The associations between perceived stress and EEG connectivity data were significant even when relevant confounding factors (i.e., sex, age, educational level, and psychopathological symptoms) were controlled for.</p><p><strong>Discussion: </strong>Taken together, our results suggest that higher levels of perceived stress are associated with a dysfunctional synchronization within the CEN and between the SN and the CEN. This functional pattern might in part reflect the negative impact of high levels of perceived stress on cognitive functioning.</p>","PeriodicalId":19239,"journal":{"name":"Neuropsychobiology","volume":"81 4","pages":"286-295"},"PeriodicalIF":3.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39773517","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}
NeuropsychobiologyPub Date : 2022-01-01Epub Date: 2021-09-02DOI: 10.1159/000517329
Franziska C Weber, Thomas C Wetter
{"title":"The Many Faces of Sleep Disorders in Post-Traumatic Stress Disorder: An Update on Clinical Features and Treatment.","authors":"Franziska C Weber, Thomas C Wetter","doi":"10.1159/000517329","DOIUrl":"10.1159/000517329","url":null,"abstract":"<p><p>Sleep disorders and nightmares are core symptoms of post-traumatic stress disorder (PTSD). The relationship seems to be bidirectional, and persistent disturbed sleep may influence the course of the disorder. With regard to sleep quality, insomnia and nocturnal anxiety symptoms, as well as nightmares and stressful dreams, are the most prominent sleep symptoms. Polysomnographic measurements reveal alterations of the sleep architecture and fragmentation of rapid eye movement sleep. In addition, sleep disorders, such as sleep-related breathing disorders and parasomnias are frequent comorbid conditions. The complex etiology and symptomatology of trauma-related sleep disorders with frequent psychiatric comorbidity require the application of multimodal treatment concepts, including psychological and pharmacological interventions. However, there is little empirical evidence on the effectiveness of long-term drug treatment for insomnia and nightmares. For nondrug interventions, challenges arise from the current lack of PTSD-treatment concepts integrating sleep- and trauma-focused therapies. Effective therapy for sleep disturbances may consequently also improve well-being during the day and probably even the course of PTSD. Whether early sleep interventions exert a preventive effect on the development of PTSD remains to be clarified in future studies.</p>","PeriodicalId":19239,"journal":{"name":"Neuropsychobiology","volume":"81 2","pages":"85-97"},"PeriodicalIF":2.3,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9153357/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39378697","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}
NeuropsychobiologyPub Date : 2022-01-01Epub Date: 2021-08-06DOI: 10.1159/000517861
Akira Monji, Yoshito Mizoguchi
{"title":"Neuroinflammation in Late-Onset Schizophrenia: Viewing from the Standpoint of the Microglia Hypothesis.","authors":"Akira Monji, Yoshito Mizoguchi","doi":"10.1159/000517861","DOIUrl":"https://doi.org/10.1159/000517861","url":null,"abstract":"<p><p>Schizophrenia develops mainly in adolescence, but late-onset schizophrenia (LOS) is not uncommon. According to the international consensus, schizophrenia which develops over 40 years old is called LOS and psychosis which develops over 60 years old is called very late-onset schizophrenia-like psychosis (VLOS). Compared to early-onset schizophrenia (EOS) that develops before the age of 40 years, LOS and VLOS are reported to be more common in women, and there are clinically clear differences such as less involvement of genetic factors than EOS. This review outlines the abnormalities of the neuroimmune system in the pathophysiology of LOS, especially focusing on the role of microglia.</p>","PeriodicalId":19239,"journal":{"name":"Neuropsychobiology","volume":"81 2","pages":"98-103"},"PeriodicalIF":3.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39410772","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}
NeuropsychobiologyPub Date : 2022-01-01Epub Date: 2022-01-11DOI: 10.1159/000521234
Else Refsgaard, Anne Vibeke Schmedes, Klaus Martiny
{"title":"Salivary Cortisol Awakening Response as a Predictor for Depression Severity in Adult Patients with a Major Depressive Episode Performing a Daily Exercise Program.","authors":"Else Refsgaard, Anne Vibeke Schmedes, Klaus Martiny","doi":"10.1159/000521234","DOIUrl":"https://doi.org/10.1159/000521234","url":null,"abstract":"<p><strong>Introduction: </strong>The hypothalamic-pituitary-adrenal axis function in depression has been the subject of considerable interest, and its function has been tested with a variety of methods. We investigated associations between saliva cortisol at awakening and the 24-h urine cortisol output, both measured at study baseline, with endpoint depression scores.</p><p><strong>Methods: </strong>Patients were admitted to a psychiatric inpatient ward with a major depressive episode and were started on fixed duloxetine treatment. They delivered saliva samples at awakening and 15, 30, and 60 min post-awakening and sampled urine for 24 h. Subsequently, they started a daily exercise program maintained for a 9-week period. Clinician-rated depression severity was blindly assessed with the Hamilton Depression Rating 6-item subscale (HAM-D6). The cortisol awakening response was quantified by the area under the curve with respect to the ground (AUCG) and with respect to the rise (AUCI) using saliva cortisol levels in the 1-h period after awakening. Analysis of expected associations between depression severity, AUCG, AUCI, exercise, and 24-h cortisol output was performed in a general linear model.</p><p><strong>Results: </strong>In all, 35 participants delivered saliva or 24-h urine samples. The mean age was 49.0 years (SD = 11.0) with 48.6% females with a mean baseline HAM-D6 score of 12.2 (SD = 2.3). In a statistical model investigating the association between HAM-D6 at week 9 as a dependent variable and AUCI, concurrent HAM-D6, gender, smoking, and exercise volume as covariates, we found a significant effect of AUCI, concurrent HAM-D6, and exercise. The following statistics were found: AUCI (regression coefficient 0.008; F value = 9.1; p = 0.007), concurrent HAM-D6 (regression coefficient 0.70; F value = 8.0; p = 0.01), and exercise (regression coefficient -0.005; F value = 5.7; p = 0.03). The model had an R2 of 0.43. The association between HAM-D6 endpoint scores and the AUCI showed that higher AUCI values predicted higher HAM-D6 endpoint values. The association between HAM-D6 endpoint scores and the exercise level showed that a high exercise level was associated with lower HAM-D6 endpoint values.</p><p><strong>Conclusion: </strong>The results thus showed that high AUCI values predicted less improvement of depression and high exercise levels predicted more improvement of depression. These findings need to be confirmed in larger samples to test if more covariates can improve prediction of depression severity.</p>","PeriodicalId":19239,"journal":{"name":"Neuropsychobiology","volume":"81 3","pages":"246-256"},"PeriodicalIF":3.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39811090","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}