Review
Clinical Neurology
Beatriz Corte-Real, Rodrigo Saraiva, Catarina Rodrigues Cordeiro, Benicio N. Frey, Flavio Kapczinski, Taiane de Azevedo Cardoso
Summary: The study aimed to investigate whether atypical antipsychotics (AA) can induce mania in mood disorders. A systematic review and meta-analysis showed that AA-induced mania is rare and the use of AA is more effective in preventing the development of mania compared to placebo.
JOURNAL OF AFFECTIVE DISORDERS
(2023)
Review
Biochemistry & Molecular Biology
Jonathan Chabert, Etienne Allauze, Bruno Pereira, Carine Chassain, Ingrid De Chazeron, Jean-Yves Rotge, Philippe Fossati, Pierre-Michel Llorca, Ludovic Samalin
Summary: The levels of neurometabolites such as Glutamate, Glutamine, Glx, and N-acetylaspartate in various brain regions differ in patients with bipolar disorder. The altered levels of NAA and Gln may be associated with the pathogenesis of bipolar disorder.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Review
Clinical Neurology
Jiaying Gong, Junjing Wang, Pan Chen, Zhangzhang Qi, Zhenye Luo, Jurong Wang, Li Huang, Ying Wang
Summary: This study aimed to systematically compare brain connectivity and morphological differences in individuals with bipolar disorder and healthy controls. The results showed that patients with bipolar disorder exhibited either increased or decreased functional connectivity in brain networks, accompanied by changes in gray matter volume.
JOURNAL OF AFFECTIVE DISORDERS
(2021)
Review
Clinical Neurology
Alessandro Miola, Giulia Cattarinussi, Gilberto Antiga, Stefano Caiolo, Marco Solmi, Fabio Sambataro
Summary: Research indicates that specific emotional regulation abnormalities exist in BD patients, but their magnitude is smaller compared to BPD. Future therapeutic interventions should focus on targeting emotional regulation strategies.
JOURNAL OF AFFECTIVE DISORDERS
(2022)
Review
Medicine, General & Internal
Andreas S. Lappas, Bartosz Helfer, Katarzyna Henke-Ciazynska, Myrto T. Samara, Nikos Christodoulou
Summary: This systematic review and meta-analysis assessed the efficacy, tolerability, and acceptability of Clonazepam in the treatment of acute mania. The results suggested that Clonazepam may be superior to a placebo in the acute phase of treatment and comparable to Lithium and Haloperidol in terms of efficacy, both acutely and in the medium to long term. Clonazepam may be an acceptable and well-tolerated treatment for acute mania, especially when used as an augmentation strategy. However, the limited sample sizes and underpowered comparisons restrict the generalizability of the findings and hinder firm clinical conclusions.
JOURNAL OF CLINICAL MEDICINE
(2023)
Article
Clinical Neurology
Qian Xiao, Zhou Wu, Xiuqing Hui, Qing Jiao, Yuan Zhong, Linyan Su, Guangming Lu
Summary: This study found differences in neural activities during emotional response inhibition between manic and euthymic pediatric bipolar disorder patients. Manic patients showed increased activities in certain brain regions compared to euthymic patients, and this hyperactivity was positively associated with false response errors. Increased activity in the left superior frontal gyrus may be characteristic of manic episodes in pediatric bipolar disorder patients, contributing to more severe emotional dysregulation.
JOURNAL OF AFFECTIVE DISORDERS
(2021)
Review
Psychology, Clinical
Francesco Bartoli, Christian Nasti, Dario Palpella, Susanna Piacenti, Maria Elisa Di Lella, Stefano Mauro, Luca Prestifilippo, Cristina Crocamo, Giuseppe Carra
Summary: A systematic review and meta-analysis of 21 studies found that compared to bipolar disorder, unipolar mania is positively or negatively associated with factors such as male gender, age at onset, number of hospitalizations, family history, suicide attempts, comorbid anxiety disorders, and psychotic features. The evidence quality varied, but this study supports the idea that unipolar mania may represent a distinct diagnostic construct with specific clinical correlates. Further research is needed to better differentiate unipolar mania and improve personalized care approaches.
PSYCHOLOGICAL MEDICINE
(2023)
Review
Neurosciences
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
Summary: In this meta-analysis, researchers investigated the grey matter changes in patients with posttraumatic stress disorder (PTSD) compared to trauma-exposed individuals without clinical PTSD. The results showed a significant reduction in grey matter volume in a large left-sided cluster extending from the parahippocampal gyrus to the uncus, including the amygdala, in PTSD patients. These findings suggest that these volumetric reductions may be a major structural correlate of PTSD and contribute to symptom expression.
NEUROPSYCHOBIOLOGY
(2022)
Review
Clinical Neurology
Ziyu Zhu, Youjin Zhao, Keren Wen, Qian Li, Nanfang Pan, Shiqin Fu, Fei Li, Joaquim Radua, Eduard Vieta, Graham J. Kemp, Bharat B. Biswa, Qiyong Gong
Summary: This meta-analysis identified significant cortical thinning in specific regions of the brain in patients with bipolar disorder, suggesting potential neuroimaging biomarkers. However, limitations in the data, including the lack of exploration into the effects of medication and mood states, highlight the need for further research in this area.
JOURNAL OF AFFECTIVE DISORDERS
(2022)
Article
Clinical Neurology
Goncalo Cotovio, Daniel Rodrigues da Silva, Estela Real Lage, Carolina Seybert, Albino J. Oliveira-Maia
Summary: Mood disorders are associated with lateralized brain dysfunction, with depression predominantly on the left side and mania predominantly on the right side. This study reviewed and summarized the asymmetry of motor cortical excitability measured by transcranial magnetic stimulation (TMS) in mood disorders. The study found interhemispheric asymmetry of motor cortical excitability, with lower left-hemisphere excitability in major depressive disorder and lower right hemisphere excitability in bipolar depression.
CLINICAL NEUROPHYSIOLOGY
(2022)
Review
Psychiatry
Francesco Bartoli, Daniele Cavaleri, Bianca Bachi, Federico Moretti, Ilaria Riboldi, Cristina Crocamo, Giuseppe Carra
Summary: The study examined the efficacy and safety of repurposed drugs for bipolar disorder and found some drugs showing significant benefits in the short term, although with low quality of evidence. Despite some drugs showing superiority to placebo in treating bipolar depression, the evidence quality remains limited.
JOURNAL OF PSYCHIATRIC RESEARCH
(2021)
Review
Behavioral Sciences
Susana Gomes-da-Costa, Wolfgang Marx, Filippo Corponi, Gerard Anmella, Andrea Murru, Maria Teresa Pons-Cabrera, Anna Gimenez-Palomo, Felipe Gutierrez-Arango, Cristian Daniel Llach, Giovanna Fico, Georgios D. Kotzalidis, Norma Verdolini, Marc Valenti, Michael Berk, Eduard Vieta, Isabella Pacchiarotti
Summary: This study found through a systematic review and meta-analysis that the use of lithium in patients with Bipolar Disorder does not significantly lead to weight gain. Shorter treatment duration is associated with more pronounced weight gain. There were no significant differences in weight gain between lithium and placebo, but weight gain with lithium was lower compared to other active comparators.
NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS
(2022)
Review
Biochemistry & Molecular Biology
Amanda Vega-Nunez, Carlos Gomez-Sanchez-Lafuente, Fermin Mayoral-Cleries, Antonio Bordallo, Fernando Rodriguez de Fonseca, Juan Suarez, Jose Guzman-Parra
Summary: Bipolar disorder (BD) is influenced by inflammatory and neurotrophic factors as well as clinical, social, and environmental factors. BDNF plays a significant role in the depressive component of BD. However, further controlled studies are needed to identify precise biomarkers for this disorder, as the results for other inflammatory mediators are inconsistent.
Article
Neuroimaging
Jiaying Gong, Guanmao Chen, Feng Chen, Shuming Zhong, Pan Chen, Hui Zhong, Shunkai Lai, Guixian Tang, Jurong Wang, Zhenye Luo, Zhangzhang Qi, Yanbin Jia, Li Huang, Ying Wang
Summary: The pathophysiological mechanisms of bipolar disorder are not fully understood, but systemic inflammation and immune dysregulation are considered risk factors. This study found abnormal functional connectivity between the amygdala and frontotemporal circuitry in bipolar disorder patients, as well as immune dysregulation. These findings suggest the dysfunction and immune dysregulation in the amygdala-frontotemporal circuitry play a critical role in the pathogenesis of bipolar disorder.
BRAIN IMAGING AND BEHAVIOR
(2022)
Article
Psychiatry
Chuanjun Zhuo, Guangdong Chen, Jiayue Chen, Hongjun Tian, Xiaoyan Ma, Qianchen Li, Lei Yang, Qiuyu Zhang, Ranli Li, Xueqin Song, Chunhai Huang
Summary: The study shows that lithium has bidirectional effects on depression- and mania-related brain functional abnormalities in patients with bipolar disorder. Lithium monotherapy has better antimanic effects and improves cognitive performance compared to valproate and other tested treatments. It also has satisfactory antidepressant effects in patients with bipolar disorder.
FRONTIERS IN PSYCHIATRY
(2022)