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Razavi MS, Fathi M, Vahednia E, Ardani AR, Honari S, Akbarzadeh F, Talaei A. Cognitive rehabilitation in bipolar spectrum disorder: A systematic review. IBRO Neurosci Rep 2024; 16:509-517. [PMID: 38645887 PMCID: PMC11033165 DOI: 10.1016/j.ibneur.2024.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 04/07/2024] [Accepted: 04/08/2024] [Indexed: 04/23/2024] Open
Abstract
Background and objectives Neurocognitive deficits in bipolar disorder (BD) have a negative impact on the quality of life, even during the euthymic phase. And many studies conducted to improve cognitive deficits in bipolar disorder. This systematic review aims to summarize studies on cognitive rehabilitation (CR) conducted in bipolar patients and evaluate its impact on neurocognitive deficits. The primary objective is to explore how CR interventions can enhance cognitive functioning, treatment outcomes, and overall quality of life in this population. Methods A comprehensive search was conducted on PubMed, Google Scholar, Scopus, Embase, and PsycINFO databases from 1950 to 2023, following the 2015 PRISMA-P guidelines, using search terms related to BD and CR. Results The initial search yielded 371 titles across the five databases. After applying inclusion and exclusion criteria through screening, a total of 23 articles were included in the study. The selected articles evaluated verbal memory, attention, executive functions, and social cognition. Conclusion The findings suggest that CR can be an effective treatment approach for bipolar patients, aimed at enhancing their cognitive abilities, treatment outcomes, and overall quality of life. The primary finding of this study indicates that cognitive-behavioral therapy (CBT) protocols, skill training, and homework exercises, which offer a daily structure, social support, and opportunities for exchanging coping strategies, are more effective in enhancing cognitive functions. However, it is important to acknowledge the notable limitations of this review. Firstly, we did not assess the methodological rigor of the included studies. Additionally, there was a lack of detailed analysis regarding specific cognitive rehabilitation approaches that adhere to core CR principles, resulting in increased heterogeneity within the reviewed studies.
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Affiliation(s)
| | | | - Elham Vahednia
- Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Rezaei Ardani
- Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sara Honari
- Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Farzad Akbarzadeh
- Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ali Talaei
- Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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2
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Sogut K, Gorgulu Y, Palabiyik O. The effect of subthreshold depressive symptoms on cognitive functions and peripheral biomarkers in bipolar disorder. Nord J Psychiatry 2023; 77:768-777. [PMID: 37668000 DOI: 10.1080/08039488.2023.2251448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 07/19/2023] [Accepted: 08/17/2023] [Indexed: 09/06/2023]
Abstract
OBJECTIVE A global approach to factors responsible for functional impairment in patients with BD is necessary. METHOD Ninety-three euthymic patients with BD [49 patients with SD (subthreshold depression) and 44 patients without SD] and 48 healthy controls were invited for evaluation of demographic, clinical, and cognitive characteristics. To define SD, the lower limit was HDRS ≥4 points and the upper limit was HDRS <9 points. Stroop test, California verbal learning test, digit-span test, controlled word association test, and clock drawing test were performed. Serum BDNF levels were measured. Additionally in the BD group; blood drug (lithium, valproic acid), leukocyte, C-reactive protein (CRP), TSH, and vitamin B12 levels were measured. RESULTS We found no difference between serum BDNF levels of BD (n = 93) and controls. The cognitive performances of the BD group were worse than the control group (p < 0.001). Attention, working memory, and stroop performance of patients with SD were worse than patients without SD (p < 0.05). Verbal fluency, stroop test, and planning performance decreased as serum CRP level increased in patients with BD (p < 0.05). CONCLUSIONS Although the patient group with SD was in euthymia, their cognitive performance was worse than the group without SD. Poor cognitive performance in BD was associated with serum CRP levels.
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Affiliation(s)
- Kubra Sogut
- Department of Psychiatry, School of Medicine, Trakya University, Edirne, Turkey
| | - Yasemin Gorgulu
- Department of Psychiatry, School of Medicine, Trakya University, Edirne, Turkey
| | - Orkide Palabiyik
- Health Services Vocational College, Trakya University, Edirne, Turkey
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Ewald VAM, Trapp NT, Sarrett ME, Pace BD, Wendt L, Richards JG, Gala IK, Miller JN, Wessel JR, Magnotta VA, Wemmie JA, Boes AD, Parker KL. Supra-second interval timing in bipolar disorder: examining the role of disorder sub-type, mood, and medication status. Int J Bipolar Disord 2023; 11:32. [PMID: 37779127 PMCID: PMC10542629 DOI: 10.1186/s40345-023-00312-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 09/15/2023] [Indexed: 10/03/2023] Open
Abstract
BACKGROUND Widely reported by bipolar disorder (BD) patients, cognitive symptoms, including deficits in executive function, memory, attention, and timing are under-studied. Work suggests that individuals with BD show impairments in interval timing tasks, including supra-second, sub-second, and implicit motor timing compared to the neuronormative population. However, how time perception differs within individuals with BD based on disorder sub-type (BDI vs II), depressed mood, or antipsychotic medication-use has not been thoroughly investigated. The present work administered a supra-second interval timing task concurrent with electroencephalography (EEG) to patients with BD and a neuronormative comparison group. As this task is known to elicit frontal theta oscillations, signal from the frontal (Fz) lead was analyzed at rest and during the task. RESULTS Results suggest that individuals with BD show impairments in supra-second interval timing and reduced frontal theta power during the task compared to neuronormative controls. However, within BD sub-groups, neither time perception nor frontal theta differed in accordance with BD sub-type, depressed mood, or antipsychotic medication use. CONCLUSIONS This work suggests that BD sub-type, depressed mood status or antipsychotic medication use does not alter timing profile or frontal theta activity. Together with previous work, these findings point to timing impairments in BD patients across a wide range of modalities and durations indicating that an altered ability to assess the passage of time may be a fundamental cognitive abnormality in BD.
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Affiliation(s)
| | - Nicholas T Trapp
- Department of Psychiatry, The University of Iowa, 200 Hawkins Drive W276GH, Iowa City, IA, 52242-1057, USA
- Iowa Neuroscience Institute, The University of Iowa, Iowa City, IA, USA
| | | | - Benjamin D Pace
- Department of Psychiatry, The University of Iowa, 200 Hawkins Drive W276GH, Iowa City, IA, 52242-1057, USA
| | - Linder Wendt
- Institute for Clinical and Translational Science, The University of Iowa, Iowa City, IA, USA
| | - Jenny G Richards
- Department of Radiology, The University of Iowa, Iowa City, IA, USA
| | - Ilisa K Gala
- Department of Psychiatry, The University of Iowa, 200 Hawkins Drive W276GH, Iowa City, IA, 52242-1057, USA
| | | | - Jan R Wessel
- Department of Psychological and Brain Sciences, The University of Iowa, Iowa City, IA, USA
- Department of Neurology, The University of Iowa, Iowa City, IA, USA
- Iowa Neuroscience Institute, The University of Iowa, Iowa City, IA, USA
| | - Vincent A Magnotta
- Department of Psychiatry, The University of Iowa, 200 Hawkins Drive W276GH, Iowa City, IA, 52242-1057, USA
- Department of Radiology, The University of Iowa, Iowa City, IA, USA
- Iowa Neuroscience Institute, The University of Iowa, Iowa City, IA, USA
| | - John A Wemmie
- Department of Psychiatry, The University of Iowa, 200 Hawkins Drive W276GH, Iowa City, IA, 52242-1057, USA
- Department of Molecular Physiology and Biophysics, The University of Iowa, Iowa City, IA, USA
- Department of Neurosurgery, The University of Iowa, Iowa City, IA, USA
- Iowa Neuroscience Institute, The University of Iowa, Iowa City, IA, USA
| | - Aaron D Boes
- Department of Psychiatry, The University of Iowa, 200 Hawkins Drive W276GH, Iowa City, IA, 52242-1057, USA
- Department of Pediatrics, The University of Iowa, Iowa City, IA, USA
- Iowa Neuroscience Institute, The University of Iowa, Iowa City, IA, USA
| | - Krystal L Parker
- Department of Psychiatry, The University of Iowa, 200 Hawkins Drive W276GH, Iowa City, IA, 52242-1057, USA.
- Iowa Neuroscience Institute, The University of Iowa, Iowa City, IA, USA.
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Degraff Z, Souza GS, Santos NA, Shoshina II, Felisberti FM, Fernandes TP, Sigurdsson G. Brain atrophy and cognitive decline in bipolar disorder: Influence of medication use, symptomatology and illness duration. J Psychiatr Res 2023; 163:421-429. [PMID: 37276646 DOI: 10.1016/j.jpsychires.2023.05.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 05/02/2023] [Accepted: 05/25/2023] [Indexed: 06/07/2023]
Abstract
Bipolar disorder (BPD) is a chronic condition characterized by recurrent episodes of mania and depression. To date, the association of biological and psychopathological processes in BPD has not been extensively studied on a cognitive and cortical basis at the same time. We investigated whether brain atrophy (in prefrontal, temporal and occipital cortices) was associated with cognitive, biological and clinical processes in patients with BPD and healthy controls (HCs). A total of 104 participants (56 with BPD) completed tasks that measured attention, memory, information processing speed, inhibitory control, visuospatial working memory and cognitive flexibility. In addition, structural brain scans were obtained using high-resolution MRI. Outcomes of the measurements were examined using robust multiple mediation analyses. BPD patients showed greater cortical atrophy across all regions of interest when compared to HCs, linked to cognitive decline. BPD patients had slower reaction times and markedly increased errors of commission on the tasks. The outcomes were significantly influenced by medication use, symptomatology and illness duration. The findings showcase the complexity of brain structures and networks as well as the physiological mechanisms underlying diverse BPD symptomatology and endophenotypes. These differences were pronounced in patients with BPD, motivating further investigations of pathophysiological mechanisms involved in brain atrophy and cognitive decline.
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Affiliation(s)
- Zeke Degraff
- Svenskagier Neurologie, Stockholm, Sweden; Institute of Neurology, Belgium.
| | | | | | | | | | - Thiago P Fernandes
- Federal University of Para, Para, Brazil; Federal University of Paraiba, Paraiba, Brazil
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Nikolitch K, Saraf G, Solmi M, Kroenke K, Fiedorowicz JG. Fire and Darkness: On the Assessment and Management of Bipolar Disorder. Med Clin North Am 2023; 107:31-60. [PMID: 36402499 DOI: 10.1016/j.mcna.2022.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Bipolar disorder is characterized by recurrent mood episodes, affecting 1% to 2% of the population. Although its defining features are manic and hypomanic episodes, its course is dominated by depressive syndromes. Diagnosis can be challenging owing to symptom overlap with other disorders. Management goals include early and complete remission of acute episodes and the prevention of relapse between episodes. We present an overview of bipolar disorder and its subtypes, including algorithms and suggestions for screening, assessment, and treatment.
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Affiliation(s)
- Katerina Nikolitch
- Department of Psychiatry, The University of Ottawa, The Ottawa Hospital, Ottawa Hospital Research Institute, 501 Smyth Road, Box 400, Ottawa, ON K1H 8L6, Canada; Institute for Mental Health Research, Ottawa, Ontario, Canada
| | - Gayatri Saraf
- Department of Psychiatry, The University of Ottawa, The Ottawa Hospital, Ottawa Hospital Research Institute, 501 Smyth Road, Box 400, Ottawa, ON K1H 8L6, Canada
| | - Marco Solmi
- Department of Psychiatry, The University of Ottawa, The Ottawa Hospital, Ottawa Hospital Research Institute, 501 Smyth Road, Box 400, Ottawa, ON K1H 8L6, Canada; School of Epidemiology and Public Health, The University of Ottawa, Ottawa, Ontario, Canada; Department of Child and Adolescent Psychiatry, Charité Universitätsmedizin, Berlin, Germany
| | - Kurt Kroenke
- Indiana University School of Medicine and Regenstrief Institute, 1101 W 10th St, Indianapolis, IN 46202, USA
| | - Jess G Fiedorowicz
- Department of Psychiatry, The University of Ottawa, The Ottawa Hospital, Ottawa Hospital Research Institute, 501 Smyth Road, Box 400, Ottawa, ON K1H 8L6, Canada; School of Epidemiology and Public Health, The University of Ottawa, Ottawa, Ontario, Canada.
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Wenzel M, Althen H, Veeh J, Reif A. Euthymic patients with predominantly manic polarity avoid happy faces in a dot probe task. Int J Bipolar Disord 2022; 10:16. [PMID: 35739323 PMCID: PMC9226225 DOI: 10.1186/s40345-022-00262-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 05/31/2022] [Indexed: 11/24/2022] Open
Abstract
Background Some studies suggest a mood-congruent attentional bias in bipolar patients. However, for euthymic patients, especially in dependence on the predominant polarity, there is little and inconsistent data. A clearer understanding of emotion-related attentional biases and their relationship to dysfunctional emotion regulation could help improving the diagnostics and treatment of bipolar disorder (BD). Twenty bipolar patients in a depressive state (BP-acute-D), 32 euthymic patients with manic (BP-euth-M) or depressive (BP-euth-D) predominant polarity, and 20 healthy control participants (HC) performed a dot-probe task (DPT) with happy and sad faces presented for 250 ms or 1250 ms in two different runs. Emotion regulation strategies were assessed with two questionnaires. Results In the short presentation condition of the DPT, BP-euth-M showed less attention for happy faces than HC (p = .03, r = − 0.48). BP-acute-D scored lower in cognitive reappraisal and putting into perspective and higher in suppression, catastrophizing, and rumination than HC. BP-euth-M scored higher in rumination and BP-euth-D lower in putting into perspective and higher in catastrophizing than HC. In BP-euth-D and HC, bias scores for sad faces in the longer presentation condition and reappraisal scores correlated positively. Conclusions Results of the DPT suggest an avoidance of happy faces for BP-euth-M which we interpret as a protection mechanism for triggers of mania. That individuals who apply more reappraisal show more selective attention to sad faces could on the one hand reflect a mental effort in reevaluating the sad emotional input and on the other hand a greater tolerance for it.
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Affiliation(s)
- Martina Wenzel
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital, Goethe University, Frankfurt, Germany. .,Department of Psychiatry, Psychotherapy and Psychosomatic Medicine, University Hospital, University of Würzburg, Würzburg, Germany. .,Department of Neurology, Technical University of Munich (TU), Munich, Germany.
| | - Heike Althen
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital, Goethe University, Frankfurt, Germany
| | - Julia Veeh
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital, Goethe University, Frankfurt, Germany.,Department of Psychiatry, Psychotherapy and Psychosomatic Medicine, University Hospital, University of Würzburg, Würzburg, Germany
| | - Andreas Reif
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital, Goethe University, Frankfurt, Germany.,Department of Psychiatry, Psychotherapy and Psychosomatic Medicine, University Hospital, University of Würzburg, Würzburg, Germany
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7
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Yamaguchi A, Iwamoto K, Ando M, Fujita K, Yokoyama M, Akiyama T, Igarashi Y, Ozaki N. Driving performance of euthymic outpatients with bipolar disorder undergoing real-world pharmacotherapy. Psychiatry Clin Neurosci 2022; 76:172-178. [PMID: 35037335 DOI: 10.1111/pcn.13332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 11/12/2021] [Accepted: 12/27/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Medications for the treatment of bipolar disorder (BD) could affect patients' cognitive function. Patients with BD present with neurocognitive impairment even in a remission state. Little research is available on the daily functioning, especially driving performance, of stable outpatients with BD under pharmacological treatment. METHODS In total, 58 euthymic outpatients with BD undergoing real-world pharmacotherapy and 80 sex- and age-matched healthy controls (HCs) were enrolled. Three driving tasks using a driving simulator-road-tracking, car-following, and harsh-braking-and three cognitive tasks-Continuous Performance Test, Wisconsin Card Sorting Test, and Trail-Making Test-were evaluated. Symptom assessment scales-Young Mania Rating Scale, Structured Interview Guide for the Hamilton Depression Rating Scale, Beck Depression Inventory-II, Social Adaptation Self-evaluation Scale, and Stanford Sleepiness Scale-were also completed. RESULTS Car-following and road-tracking performance were significantly impaired in patients with BD compared with HCs after adjusting for demographic variables, but these performances generally overlapped. Broad neurocognitive functions were significantly lower in the patients with BD compared to HCs, but car-following performance was significantly negatively correlated with sustained attention only. Although most patients received multiple medications rather than monotherapy, no relationship between prescriptions and driving performance was found. CONCLUSION Euthymic patients with BD under steady-state pharmacotherapy had impaired driving performance compared with HCs, but the overlapping distributions of driving performance suggested that driving performance is not always deteriorated in patients with BD. Therefore, attentional function may be a useful clinical feature for judging driving aptitude in patients with BD.
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Affiliation(s)
- Akiko Yamaguchi
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, Nagoya, Japan
| | - Kunihiro Iwamoto
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, Nagoya, Japan
| | - Masahiko Ando
- Department of Advanced Medicine, Nagoya University Hospital, Nagoya, Japan
| | - Kiyoshi Fujita
- Department of Psychiatry, Okehazama Hospital, Toyoake, Japan
| | | | - Tsuyoshi Akiyama
- Department of Neuropsychiatry, NTT Medical Center Tokyo, Tokyo, Japan
| | | | - Norio Ozaki
- Department of Psychiatry, Nagoya University, Graduate School of Medicine, Nagoya, Japan
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Tang L, Liu J, Zhu Y, Duan J, Chen Y, Wei Y, Gong X, Wang F, Tang Y. ANK3 Gene Polymorphism Rs10994336 Influences Executive Functions by Modulating Methylation in Patients With Bipolar Disorder. Front Neurosci 2021; 15:682873. [PMID: 34421516 PMCID: PMC8371237 DOI: 10.3389/fnins.2021.682873] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 05/31/2021] [Indexed: 01/11/2023] Open
Abstract
Background: A large body of evidence suggests that epigenetic modification including DNA methylation plays a critical role in BD's pathogenesis while the identification of methylation quantitative trait loci (meQTLs) shed light on the interpretation of the function of genetic variants in non-coding regions. The intronic single nucleotide polymorphism (SNP) rs10994336 within the ANK3 has emerged as one of the most replicated risk variants for bipolar disorder (BD) in genome-wide association studies. Whether rs10994336 functions as a meQTL to mediate the association between genotype and phenotype remains unclear. Method: A total of 154 patients with BD and 181 healthy controls (HC) were recruited. The genotypes of rs10994336 and methylation levels of CpG sites within ANK3 were tested. Executive functions were assessed using a computerized version of the Wisconsin Card Sorting Test (WCST). Results: Bipolar disorder patients with the risk-T allele of rs10994336 scored lower on tests of executive function compared to homozygous CC carriers, after controlling for age, gender, and education level. No significant difference was found in HC individuals. The risk-T allele is associated with a lower methylation level of CpG site cg02172182 in HC after multiple corrections and replicated in the BD group in the same direction. Further mediation analysis revealed that the cg02172182 methylation significantly mediated the association between the polymorphism rs10994336 and PE index of WCST in patients with BD. Conclusion: Our study suggests that BD-related genetic variant rs10994336 in ANK3 impacts executive functions by modulating ANK3 methylation, supporting the theory that methylation acts as a mediator between genotype and phenotype.
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Affiliation(s)
- Lili Tang
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Juan Liu
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yue Zhu
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Jia Duan
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yifan Chen
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yange Wei
- Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, China
| | - Xiaohong Gong
- State Key Laboratory of Genetic Engineering and Human Phenome Institute, School of Life Sciences, Fudan University, Shanghai, China
| | - Fei Wang
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, China.,Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, China
| | - Yanqing Tang
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, China
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Affective and non-affective cognition in patients with bipolar disorder type I and type II in full or partial remission: Associations with familial risk. J Affect Disord 2021; 283:207-215. [PMID: 33561801 DOI: 10.1016/j.jad.2021.01.074] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 01/09/2021] [Accepted: 01/30/2021] [Indexed: 11/21/2022]
Abstract
BACKGROUND The upcoming conversion of the ICD-11 will subdivide patients with bipolar disorder (BD) into BD type I (BD-I) and BD type II (BD-II). This study aimed to investigate whether cognitive impairments could aid as objective cognitive biomarkers for recently diagnosed BD subtypes by comparing cognitive profiles between BD subtypes, their unaffected relatives (UR), and healthy controls (HC). METHODS The sample included 76 patients with BD-I, 149 patients with BD-II, 28 UR of patients with BD-I (UR-I), 50 UR of patients with BD-II (UR-II) and 168 HC from the Bipolar Illness Onset study, who were assessed with an extensive non-affective and affective cognitive test battery. RESULTS The results showed no significant differences in affective or non-affective cognition between BD-I and BD-II. Compared to HC, patients with BD-I (but not BD-II) showed worse performance in verbal fluency (p = .01) and were slower at recognising fearful faces (p = .045), while patients with BD-II (but not BD-I) displayed generally poorer recognition of facial expressions (p = .02). Only UR-I showed lower performance on verbal fluency (p = .049) and aberrant affective cognition (ps≤.047) compared to HC. LIMITATIONS The potential confounding effects of medication were not explored. CONCLUSIONS The lack of significant differences in cognitive profiles between recently diagnosed BD-I and BD-II suggests that neither affective nor non-affective cognition are indicative of BD subtype.
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Hua MH, Chen MH, Hsu JW, Huang KL, Tsai SJ, Li CT, Bai YM. Proinflammatory Cytokine Dysregulation and Cognitive Dysfunction Among Patients with Remitted Bipolar I and II Disorders. J Affect Disord 2021; 281:738-743. [PMID: 33229027 DOI: 10.1016/j.jad.2020.11.079] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 09/15/2020] [Accepted: 11/08/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Euthymic patients with bipolar disorder reportedly demonstrated increased levels of proinflammatory cytokines and cognitive function deficits. Because uncertain differences exist in cognitive function and proinflammatory cytokines between remitted bipolar I (BD1) and bipolar II (BD2) disorders, we performed this study to further investigate these differences. METHOD We enrolled 58 patients with remitted BD1 and 27 with remitted BD2, and matched them for age and sex with 51 controls. Proinflammatory cytokines, including soluble interleukin-6 receptor (sIL-6R), C-reactive protein, and soluble tumor necrosis factor receptor 1 (sTNFR1) were measured, and performance in the Word List Memory Task (WLMT) and Wisconsin Card Sorting Task (WCST) was assessed. RESULTS Significantly elevated levels of sTNFR1 were observed among patients with BD1 (p < .001) and BD2 (p = .038) compared with the controls; however, they did not differ between patients with BD1 and BD2 (p =.130). Working memory deficit measured by the WLMT was significantly greater in patients with BD1 (p < .001) and BD2 (p < .05) compared with controls, but did not differ between patients with BD1 and BD2 (p > 0.1). Furthermore, sTNFR1 levels were negatively correlated with cognitive function measured using the WLMT and WCST (all p < .05). DISCUSSION Our results showed that euthymic patients with BD1 and BD2 showed similar levels of sTNFR1 and cognitive function (especially working memory) impairments. Further investigation is required to explore whether a common pathophysiology may contribute to the shared inflammatory and cognitive alterations between BD1 and BD2.
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Affiliation(s)
- Mao-Hsiu Hua
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Family Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Hospital and Health Care Administration, National Yang-Ming University, Taipei, Taiwan; Department of Psychiatry, Cheng Hsin General Hospital; Department of Psychiatry, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, Taiwan
| | - Mu-Hong Chen
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Psychiatry, College of Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Family Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Hospital and Health Care Administration, National Yang-Ming University, Taipei, Taiwan; Department of Psychiatry, Cheng Hsin General Hospital.
| | - Ju-Wei Hsu
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Psychiatry, College of Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Family Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Hospital and Health Care Administration, National Yang-Ming University, Taipei, Taiwan; Department of Psychiatry, Cheng Hsin General Hospital
| | - Kai-Lin Huang
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Psychiatry, College of Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Family Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Hospital and Health Care Administration, National Yang-Ming University, Taipei, Taiwan; Department of Psychiatry, Cheng Hsin General Hospital
| | - Shih-Jen Tsai
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Psychiatry, College of Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Family Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Hospital and Health Care Administration, National Yang-Ming University, Taipei, Taiwan; Department of Psychiatry, Cheng Hsin General Hospital
| | - Cheng-Ta Li
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Psychiatry, College of Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Family Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Hospital and Health Care Administration, National Yang-Ming University, Taipei, Taiwan; Department of Psychiatry, Cheng Hsin General Hospital
| | - Ya-Mei Bai
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Psychiatry, College of Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Family Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Hospital and Health Care Administration, National Yang-Ming University, Taipei, Taiwan; Department of Psychiatry, Cheng Hsin General Hospital.
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Knorr U, Miskowiak K, Akhøj M, Vinberg M, Forman J, Kessing LV. The impact of the trajectory of bipolar disorder on global cognitive function: A one-year clinical prospective case-control study. J Affect Disord 2021; 278:189-198. [PMID: 32961415 DOI: 10.1016/j.jad.2020.09.055] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 09/06/2020] [Accepted: 09/11/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND The relationship between cognitive function and relapse of affective episodes in bipolar disorder (BD) is rarely studied. The aim of this prospective, longitudinal, case-control study was to assess the trajectory of cognitive function and mood occilations within a one-year period in patients with BD relative to healthy control (HC) individuals. METHODS The sample included 86 outpatients with BD in euthymia, and 44 gender-and-age-matched HC. All participants were evaluated with clinical assessement and neuropsychological testing at baseline and during euthymia after a year. Further patients with BD were reevaluated if they developed a new affective episode during follow-up. The patients´ affective states were recorded on a weekly basis as asymptomatic, subthreshold level, major depression or (hypo)mania. Cognitive changes over time were measured for a global cognitive score and for the four cognitive domains: 'working memory and executive skills', 'psychomotor speed', 'sustained attention', and 'verbal learning and memory' in patients and HC. RESULTS The study showed that cognitive performance in patients with BD was unaltered compared to baseline when they stabilised in euthymia following an affective episode and, at the one-year follow-up. Cognitive performance showed practice effect, thus improved within a year across patients with BD and HC. Furthermore, cognitive functions were not related to clinical subtypes BDI/II, prior psychosis, the polarity of the relapse and week-to-week mood fluctuations during follow-up. Functioning correlated weakly to moderately with week-to-week mood fluctuations. LIMITATIONS Modest sample size. CONCLUSION A one-year trajectory of BD seems to have no direct negative impact on cognitive function.
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Affiliation(s)
- Ulla Knorr
- Copenhagen Affective Disorder Research Center (CADIC), Psychiatric Center Copenhagen, Rigshospitalet, Copenhagen, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Denmark.
| | - Kamilla Miskowiak
- Copenhagen Affective Disorder Research Center (CADIC), Psychiatric Center Copenhagen, Rigshospitalet, Copenhagen, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Denmark; Department of Psychology, University of Copenhagen, Denmark
| | - Morten Akhøj
- Section of Biostatistics, Department of Public Health, University of Copenhagen, Denmark
| | - Maj Vinberg
- Copenhagen Affective Disorder Research Center (CADIC), Psychiatric Center Copenhagen, Rigshospitalet, Copenhagen, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Denmark; Psychiatric Research Unit, Psychiatric Centre North Zealand, Hillerød, Denmark
| | - Julie Forman
- Section of Biostatistics, Department of Public Health, University of Copenhagen, Denmark
| | - Lars Vedel Kessing
- Copenhagen Affective Disorder Research Center (CADIC), Psychiatric Center Copenhagen, Rigshospitalet, Copenhagen, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
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Keramatian K, Torres IJ, Yatham LN. Neurocognitive functioning in bipolar disorder: What we know and what we don’t. DIALOGUES IN CLINICAL NEUROSCIENCE 2021; 23:29-38. [PMID: 35860174 PMCID: PMC9286730 DOI: 10.1080/19585969.2022.2042164] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Introduction: This narrative review of systematic reviews and meta-analyses aims at compiling available evidence in various aspects of neurocognitive functioning in Bipolar Disorder (BD). Methods: We conducted a MEDLINE literature search and identified 38 relevant systematic reviews and metaanalyses. Results: Current evidence suggests that BD is associated with cognitive impairment across multiple domains and during all clinical states. However, there is a considerable cognitive heterogeneity within BD, which cannot be explained by clinical subtypes, and the pattern of neurocognitive impairment in BD overlaps with other psychiatric conditions such as major depression and schizophrenia. Residual depressive symptoms, poor clinical course and higher number of manic episodes may negatively impact cognitive performance, which is a major predictor of general functioning in BD. Evidence from available prospective studies does not support the notion of progressive cognitive decline in BD while some evidence exists to suggest patients may show some improvements in cognitive functioning following the first manic episode. Furthermore, a subset of patients may show premorbid cognitive abnormalities that could signal an early neurodevelopmental aetiology. Preliminary findings from small studies identify potential pro-cognitive effects of Cognitive Remediation, erythropoietin, intranasal insulin, lurasidone, mifepristone, repetitive Transcranial Magnetic Stimulation and transcranial Direct Current Stimulation in BD. Discussion: Longitudinal studies in high-risk individuals can provide a better understanding of the development and progression of neurocognitive impairment in BD. Largescale randomised control trials are needed to compare the pro-cognitive efficacy of various pharmacological and non-pharmacological interventions in different cognitive subgroups of patients at different stages of BD.
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Affiliation(s)
- Kamyar Keramatian
- Department of Psychiatry, University of British Columbia, Vancouver, BC, Canada
| | - Ivan J. Torres
- Department of Psychiatry, University of British Columbia, Vancouver, BC, Canada
| | - Lakshmi N. Yatham
- Department of Psychiatry, University of British Columbia, Vancouver, BC, Canada
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Cotrena C, Damiani Branco L, Ponsoni A, Samamé C, Milman Shansis F, Paz Fonseca R. Executive functions and memory in bipolar disorders I and II: new insights from meta-analytic results. Acta Psychiatr Scand 2020; 141:110-130. [PMID: 31697843 DOI: 10.1111/acps.13121] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/21/2019] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To perform a systematic review and meta-analysis of executive functions (EF) and episodic memory in bipolar disorder (BD). METHODS A literature search was conducted on three electronic databases. Results were combined using random-effects meta-analysis. RESULTS A total of 126 studies (6424 patients with BDI, 702 with BDII, and 8276 controls) were included. BDI was associated with moderate to large impairments across all cognitive functions and BDII with small-to-medium impairments. Small significant differences were identified between BDI and BDII on all cognitive functions except inhibition. The Trail Making Test (TMT) (g = 0.74, 95% CI: 0.67-0.80), Hayling Test (g = 0.58, 95% CI: 0.34-0.81), Digit Span Total (g = 0.79, 95% CI: 0.57-1.01), and Category Fluency (g = 0.59, 95% CI: 0.45-0.72) tasks were most sensitive to cognitive impairment in BDI. The TMT (g = 0.65, 95% CI: 0.50-0.80) and Category Fluency (g = 0.56, 95% CI: 0.37-0.75) were also sensitive to cognitive alterations in patients with BDII. CONCLUSION BD type I was associated with more severe and widespread impairments than BDII, which showed smaller impairments on all functions except inhibition, where impairments were larger. Education and (hypo)manic symptoms should be further investigated in future studies due to their possible influence on the neuropsychological profile of BD. The instruments identified in this review should be considered for inclusion in cognitive assessment batteries in BD.
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Affiliation(s)
- C Cotrena
- Department of Health Science, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - L Damiani Branco
- Department of Health Science, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - A Ponsoni
- Department of Health Science, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - C Samamé
- School of Psychology, University of Buenos Aires, Buenos Aires, Argentina
| | - F Milman Shansis
- Faculdade de Medicina da Universidade do Vale dos Sinos (UNISINOS) São Leopoldo, Programa de Pos-Graduação em Saude Coletiva, São Leopoldo, Rio Grande do Sul, Brazil
| | - R Paz Fonseca
- Department of Health Science, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
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