151
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Cortez I, Brocardo PS, Leasure JL. Changes in Affective Behavior and Oxidative Stress after Binge Alcohol in Male and Female Rats. Brain Sci 2021; 11:brainsci11091250. [PMID: 34573270 PMCID: PMC8468617 DOI: 10.3390/brainsci11091250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 09/14/2021] [Accepted: 09/17/2021] [Indexed: 11/17/2022] Open
Abstract
Binge alcohol consumption and alcohol use disorders (AUD) are prevalent, and there is comorbidity with depression and anxiety. Potential underlying mechanisms include neurophysiological, genetic, and metabolic changes resulting from alcohol exposure. Mood and anxiety disorders are more common among women, but whether females are more susceptible to binge-induced oxidative stress and co-occurring anxiety and depression-like behaviors remains unknown. Here, we used a repeated, weekly binge alcohol paradigm in male and female rats to investigate sex differences in despair and anxiety-like behaviors and brain oxidative stress parameters. A single binge alcohol exposure significantly elevated glutathione (GSH) levels in prefrontal cortex (PFC) of both male and female animals. This was accompanied by increased lipid peroxidation in PFC of both sexes. Repeated (once weekly) binge exposure induced changes in anxiety- and depression-like behaviors in both males and females and increased GSH level in the PFC without detectable oxidative damage. Our findings suggest that repeated binge alcohol exposure influences affect regardless of sex and in the absence of membrane damage.
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Affiliation(s)
- Ibanelo Cortez
- Department of Psychology, University of Houston, Houston, TX 77204, USA;
| | - Patricia S. Brocardo
- Department of Morphological Sciences and Graduate Neuroscience Program, Center of Biological Sciences, Federal University of Santa Catarina, Florianopolis 88040-900, SC, Brazil
- Correspondence: (P.S.B.); (J.L.L.)
| | - J. Leigh Leasure
- Department of Psychology, University of Houston, Houston, TX 77204, USA;
- Department of Biology & Biochemistry, University of Houston, Houston, TX 77204, USA
- Correspondence: (P.S.B.); (J.L.L.)
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Clifton NE, Collado-Torres L, Burke EE, Pardiñas AF, Harwood JC, Di Florio A, Walters JTR, Owen MJ, O'Donovan MC, Weinberger DR, Holmans PA, Jaffe AE, Hall J. Developmental Profile of Psychiatric Risk Associated With Voltage-Gated Cation Channel Activity. Biol Psychiatry 2021; 90:399-408. [PMID: 33965196 PMCID: PMC8375582 DOI: 10.1016/j.biopsych.2021.03.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 02/26/2021] [Accepted: 03/04/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND Recent breakthroughs in psychiatric genetics have implicated biological pathways onto which genetic risk for psychiatric disorders converges. However, these studies do not reveal the developmental time point(s) at which these pathways are relevant. METHODS We aimed to determine the relationship between psychiatric risk and developmental gene expression relating to discrete biological pathways. We used postmortem RNA sequencing data (BrainSeq and BrainSpan) from brain tissue at multiple prenatal and postnatal time points, with summary statistics from recent genome-wide association studies of schizophrenia, bipolar disorder, and major depressive disorder. We prioritized gene sets for overall enrichment of association with each disorder and then tested the relationship between the association of their constituent genes with their relative expression at each developmental stage. RESULTS We observed relationships between the expression of genes involved in voltage-gated cation channel activity during early midfetal, adolescence, and early adulthood time points and association with schizophrenia and bipolar disorder, such that genes more strongly associated with these disorders had relatively low expression during early midfetal development and higher expression during adolescence and early adulthood. The relationship with schizophrenia was strongest for the subset of genes related to calcium channel activity, while for bipolar disorder, the relationship was distributed between calcium and potassium channel activity genes. CONCLUSIONS Our results indicate periods during development when biological pathways related to the activity of calcium and potassium channels may be most vulnerable to the effects of genetic variants conferring risk for psychiatric disorders. Furthermore, they indicate key time points and potential targets for disorder-specific therapeutic interventions.
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Affiliation(s)
- Nicholas E Clifton
- Neuroscience and Mental Health Research Institute, Cardiff University, Cardiff, United Kingdom; MRC Centre for Neuropsychiatric Genetics and Genomics, Division of Psychological Medicine and Clinical Neurosciences, Cardiff University, Cardiff, United Kingdom.
| | - Leonardo Collado-Torres
- Lieber Institute for Brain Development, Johns Hopkins University Medical Campus, Baltimore, Maryland; Centre for Computational Biology, Johns Hopkins University Medical Campus, Baltimore, Maryland
| | - Emily E Burke
- Lieber Institute for Brain Development, Johns Hopkins University Medical Campus, Baltimore, Maryland
| | - Antonio F Pardiñas
- MRC Centre for Neuropsychiatric Genetics and Genomics, Division of Psychological Medicine and Clinical Neurosciences, Cardiff University, Cardiff, United Kingdom
| | - Janet C Harwood
- MRC Centre for Neuropsychiatric Genetics and Genomics, Division of Psychological Medicine and Clinical Neurosciences, Cardiff University, Cardiff, United Kingdom
| | - Arianna Di Florio
- MRC Centre for Neuropsychiatric Genetics and Genomics, Division of Psychological Medicine and Clinical Neurosciences, Cardiff University, Cardiff, United Kingdom
| | - James T R Walters
- MRC Centre for Neuropsychiatric Genetics and Genomics, Division of Psychological Medicine and Clinical Neurosciences, Cardiff University, Cardiff, United Kingdom
| | - Michael J Owen
- Neuroscience and Mental Health Research Institute, Cardiff University, Cardiff, United Kingdom; MRC Centre for Neuropsychiatric Genetics and Genomics, Division of Psychological Medicine and Clinical Neurosciences, Cardiff University, Cardiff, United Kingdom
| | - Michael C O'Donovan
- MRC Centre for Neuropsychiatric Genetics and Genomics, Division of Psychological Medicine and Clinical Neurosciences, Cardiff University, Cardiff, United Kingdom
| | - Daniel R Weinberger
- Lieber Institute for Brain Development, Johns Hopkins University Medical Campus, Baltimore, Maryland; Departments of Psychiatry, Neurology, Neuroscience and Genetic Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Peter A Holmans
- MRC Centre for Neuropsychiatric Genetics and Genomics, Division of Psychological Medicine and Clinical Neurosciences, Cardiff University, Cardiff, United Kingdom
| | - Andrew E Jaffe
- Lieber Institute for Brain Development, Johns Hopkins University Medical Campus, Baltimore, Maryland; Centre for Computational Biology, Johns Hopkins University Medical Campus, Baltimore, Maryland; Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
| | - Jeremy Hall
- Neuroscience and Mental Health Research Institute, Cardiff University, Cardiff, United Kingdom; MRC Centre for Neuropsychiatric Genetics and Genomics, Division of Psychological Medicine and Clinical Neurosciences, Cardiff University, Cardiff, United Kingdom
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153
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Liu W, Wang X, Xu J, Chang Y, Hamalainen T, Cong F. Identifying Oscillatory Hyperconnectivity and Hypoconnectivity Networks in Major Depression Using Coupled Tensor Decomposition. IEEE Trans Neural Syst Rehabil Eng 2021; 29:1895-1904. [PMID: 34499604 DOI: 10.1109/tnsre.2021.3111564] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Previous researches demonstrate that major depression disorder (MDD) is associated with widespread network dysconnectivity, and the dynamics of functional connectivity networks are important to delineate the neural mechanisms of MDD. Neural oscillations exert a key role in coordinating the activity of remote brain regions, and various assemblies of oscillations can modulate different networks to support different cognitive tasks. Studies have demonstrated that the dysconnectivity of electroencephalography (EEG) oscillatory networks is related with MDD. In this study, we investigated the oscillatory hyperconnectivity and hypoconnectivity networks in MDD under a naturalistic and continuous stimuli condition of music listening. With the assumption that the healthy group and the MDD group share similar brain topology from the same stimuli and also retain individual brain topology for group differences, we applied the coupled nonnegative tensor decomposition algorithm on two adjacency tensors with the dimension of time × frequency × connectivity × subject, and imposed double-coupled constraints on spatial and spectral modes. The music-induced oscillatory networks were identified by a correlation analysis approach based on the permutation test between extracted temporal factors and musical features. We obtained three hyperconnectivity networks from the individual features of MDD and three hypoconnectivity networks from common features. The results demonstrated that the dysfunction of oscillatory networks could affect the involvement in music perception for MDD patients. Those oscillatory dysconnectivity networks may provide promising references to reveal the pathoconnectomics of MDD and potential biomarkers for the diagnosis of MDD.
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154
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A Role of BDNF in the Depression Pathogenesis and a Potential Target as Antidepressant: The Modulator of Stress Sensitivity "Shati/Nat8l-BDNF System" in the Dorsal Striatum. Pharmaceuticals (Basel) 2021; 14:ph14090889. [PMID: 34577589 PMCID: PMC8469819 DOI: 10.3390/ph14090889] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/27/2021] [Accepted: 08/27/2021] [Indexed: 12/12/2022] Open
Abstract
Depression is one of the most common mental diseases, with increasing numbers of patients globally each year. In addition, approximately 30% of patients with depression are resistant to any treatment and do not show an expected response to first-line antidepressant drugs. Therefore, novel antidepressant agents and strategies are required. Although depression is triggered by post-birth stress, while some individuals show the pathology of depression, others remain resilient. The molecular mechanisms underlying stress sensitivity remain unknown. Brain-derived neurotrophic factor (BDNF) has both pro- and anti-depressant effects, dependent on brain region. Considering the strong region-specific contribution of BDNF to depression pathogenesis, the regulation of BDNF in the whole brain is not a beneficial strategy for the treatment of depression. We reviewed a novel finding of BDNF function in the dorsal striatum, which induces vulnerability to social stress, in addition to recent research progress regarding the brain regional functions of BDNF, including the prefrontal cortex, hippocampus, and nucleus accumbens. Striatal BDNF is regulated by Shati/Nat8l, an N-acetyltransferase through epigenetic regulation. Targeting of Shati/Nat8l would allow BDNF to be striatum-specifically regulated, and the striatal Shati/Nat8l-BDNF pathway could be a promising novel therapeutic agent for the treatment of depression by modulating sensitivity to stress.
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155
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Blaze J, Navickas A, Phillips HL, Heissel S, Plaza-Jennings A, Miglani S, Asgharian H, Foo M, Katanski CD, Watkins CP, Pennington ZT, Javidfar B, Espeso-Gil S, Rostandy B, Alwaseem H, Hahn CG, Molina H, Cai DJ, Pan T, Yao WD, Goodarzi H, Haghighi F, Akbarian S. Neuronal Nsun2 deficiency produces tRNA epitranscriptomic alterations and proteomic shifts impacting synaptic signaling and behavior. Nat Commun 2021; 12:4913. [PMID: 34389722 PMCID: PMC8363735 DOI: 10.1038/s41467-021-24969-x] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 07/16/2021] [Indexed: 02/07/2023] Open
Abstract
Epitranscriptomic mechanisms linking tRNA function and the brain proteome to cognition and complex behaviors are not well described. Here, we report bi-directional changes in depression-related behaviors after genetic disruption of neuronal tRNA cytosine methylation, including conditional ablation and transgene-derived overexpression of Nsun2 in the mouse prefrontal cortex (PFC). Neuronal Nsun2-deficiency was associated with a decrease in tRNA m5C levels, resulting in deficits in expression of 70% of tRNAGly isodecoders. Altogether, 1488/5820 proteins changed upon neuronal Nsun2-deficiency, in conjunction with glycine codon-specific defects in translational efficiencies. Loss of Gly-rich proteins critical for glutamatergic neurotransmission was associated with impaired synaptic signaling at PFC pyramidal neurons and defective contextual fear memory. Changes in the neuronal translatome were also associated with a 146% increase in glycine biosynthesis. These findings highlight the methylation sensitivity of glycinergic tRNAs in the adult PFC. Furthermore, they link synaptic plasticity and complex behaviors to epitranscriptomic modifications of cognate tRNAs and the proteomic homeostasis associated with specific amino acids.
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Affiliation(s)
- J Blaze
- Department of Neuroscience, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
- Friedman Brain Institute, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
| | - A Navickas
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA, USA
| | - H L Phillips
- Departments of Psychiatry and Behavioral Sciences, Neuroscience and Physiology, Upstate Medical University, Syracuse, NY, USA
| | - S Heissel
- The Rockefeller University Proteomics Resource Center, The Rockefeller University, New York, NY, USA
| | - A Plaza-Jennings
- Department of Psychiatry, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
| | - S Miglani
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA, USA
| | - H Asgharian
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA, USA
| | - M Foo
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL, USA
| | - C D Katanski
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL, USA
| | - C P Watkins
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL, USA
| | - Z T Pennington
- Department of Neuroscience, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
- Friedman Brain Institute, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
| | - B Javidfar
- Friedman Brain Institute, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
- Department of Psychiatry, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
| | - S Espeso-Gil
- Friedman Brain Institute, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
- Department of Psychiatry, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
| | - B Rostandy
- The Rockefeller University Proteomics Resource Center, The Rockefeller University, New York, NY, USA
| | - H Alwaseem
- The Rockefeller University Proteomics Resource Center, The Rockefeller University, New York, NY, USA
| | - C G Hahn
- Department of Neurosciences, Thomas Jefferson University, Philadelphia, PA, USA
| | - H Molina
- The Rockefeller University Proteomics Resource Center, The Rockefeller University, New York, NY, USA
| | - D J Cai
- Department of Neuroscience, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
- Friedman Brain Institute, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
| | - T Pan
- Department of Biochemistry and Molecular Biology, University of Chicago, Chicago, IL, USA
| | - W D Yao
- Departments of Psychiatry and Behavioral Sciences, Neuroscience and Physiology, Upstate Medical University, Syracuse, NY, USA
| | - H Goodarzi
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA, USA
| | - F Haghighi
- Department of Neuroscience, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
- Friedman Brain Institute, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
- Department of Psychiatry, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
- Research and Development Service, James J. Peters Veterans Affairs Medical Center, Bronx, NY, USA
| | - S Akbarian
- Department of Neuroscience, Icahn School of Medicine at Mt. Sinai, New York, NY, USA.
- Friedman Brain Institute, Icahn School of Medicine at Mt. Sinai, New York, NY, USA.
- Department of Psychiatry, Icahn School of Medicine at Mt. Sinai, New York, NY, USA.
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156
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Differential involvement of frontoparietal network and insula cortex in emotion regulation. Neuropsychologia 2021; 161:107991. [PMID: 34391808 DOI: 10.1016/j.neuropsychologia.2021.107991] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 08/10/2021] [Accepted: 08/10/2021] [Indexed: 11/23/2022]
Abstract
Emotion regulation (ER) is an essential part of our daily life. To effectively regulate emotions, different types of strategies may be adopted. Although previous neuroimaging studies have shown that the frontoparietal cortex is critical for the regulation of emotions, reports about the specific brain regions involved in each strategy remain inconsistent. Therefore, the present study recruited 32 healthy participants to directly examine three typical ER strategies (distraction, reappraisal, and suppression) with an emotional regulation paradigm using functional magnetic resonance imaging (fMRI). Our results show that the three ER strategies recruited differential activation in the frontoparietal and insular cortex. Specifically, distraction evoked stronger activation in the parietal cortex, while reappraisal triggered stronger activation in most parts of the frontal cortex. Importantly, suppression predominantly recruited the left inferior frontal gyrus (IFG), while reappraisal caused more activation than suppression in bilateral medial superior frontal gyrus and IFG. Besides, functional connectivity analysis found that the connectivity between the right insular and the right IFG was negatively correlated with reappraisal effect, while that between the left insular and the left IFG was negatively correlated with suppression effect. These results suggest that the successful implementation of distraction, reappraisal, and suppression specifically employ different parts of the frontoparietal network. Overall, our findings may have potential implications for clinical practice by providing specific neural targets for clinical intervention.
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157
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Chronic Stress Induces Sex-Specific Functional and Morphological Alterations in Corticoaccumbal and Corticotegmental Pathways. Biol Psychiatry 2021; 90:194-205. [PMID: 33867113 DOI: 10.1016/j.biopsych.2021.02.014] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 02/08/2021] [Accepted: 02/11/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND The medial prefrontal cortex (mPFC) is part of a complex circuit controlling stress responses by sending projections to different limbic structures including the nucleus accumbens (NAc) and ventral tegmental area (VTA). However, the impact of chronic stress on NAc- and VTA-projecting mPFC neurons is still unknown, and the distinct contribution of these pathways to stress responses in males and females is unclear. METHODS Behavioral stress responses were induced by 21 days of chronic variable stress in male and female C57BL/6NCrl mice. An intersectional viral approach was used to label both pathways and assess the functional, morphological, and transcriptional adaptations in NAc- and VTA-projecting mPFC neurons in stressed males and females. Using chemogenetic approaches, we modified neuronal activity of NAc-projecting mPFC neurons to decipher their contribution to stress phenotypes. RESULTS Chronic variable stress induced depressive-like behaviors in males and females. NAc- and VTA-projecting mPFC neurons exhibited sex-specific functional, morphological, and transcriptional alterations. The functional changes were more severe in females in NAc-projecting mPFC neurons, while males exhibited more drastic reductions in dendritic complexity in VTA-projecting mPFC neurons after chronic variable stress. Finally, chemogenetic overactivation of the corticoaccumbal pathway triggered anxiety and behavioral despair in both sexes, while its inhibition rescued the phenotype only in females. CONCLUSIONS Our results suggest that stress responses in males and females result from pathway-specific changes in the activity of transcriptional programs controlling the morphological and synaptic properties of corticoaccumbal and corticotegmental pathways in a sex-specific fashion.
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158
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Balzekas I, Sladky V, Nejedly P, Brinkmann BH, Crepeau D, Mivalt F, Gregg NM, Pal Attia T, Marks VS, Wheeler L, Riccelli TE, Staab JP, Lundstrom BN, Miller KJ, Van Gompel J, Kremen V, Croarkin PE, Worrell GA. Invasive Electrophysiology for Circuit Discovery and Study of Comorbid Psychiatric Disorders in Patients With Epilepsy: Challenges, Opportunities, and Novel Technologies. Front Hum Neurosci 2021; 15:702605. [PMID: 34381344 PMCID: PMC8349989 DOI: 10.3389/fnhum.2021.702605] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 06/29/2021] [Indexed: 01/10/2023] Open
Abstract
Intracranial electroencephalographic (iEEG) recordings from patients with epilepsy provide distinct opportunities and novel data for the study of co-occurring psychiatric disorders. Comorbid psychiatric disorders are very common in drug-resistant epilepsy and their added complexity warrants careful consideration. In this review, we first discuss psychiatric comorbidities and symptoms in patients with epilepsy. We describe how epilepsy can potentially impact patient presentation and how these factors can be addressed in the experimental designs of studies focused on the electrophysiologic correlates of mood. Second, we review emerging technologies to integrate long-term iEEG recording with dense behavioral tracking in naturalistic environments. Third, we explore questions on how best to address the intersection between epilepsy and psychiatric comorbidities. Advances in ambulatory iEEG and long-term behavioral monitoring technologies will be instrumental in studying the intersection of seizures, epilepsy, psychiatric comorbidities, and their underlying circuitry.
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Affiliation(s)
- Irena Balzekas
- Bioelectronics, Neurophysiology, and Engineering Laboratory, Department of Neurology, Mayo Clinic, Rochester, MN, United States
- Biomedical Engineering and Physiology Graduate Program, Mayo Clinic Graduate School of Biomedical Sciences, Rochester, MN, United States
- Mayo Clinic Alix School of Medicine, Rochester, MN, United States
- Mayo Clinic Medical Scientist Training Program, Rochester, MN, United States
| | - Vladimir Sladky
- Bioelectronics, Neurophysiology, and Engineering Laboratory, Department of Neurology, Mayo Clinic, Rochester, MN, United States
- Faculty of Biomedical Engineering, Czech Technical University in Prague, Kladno, Czechia
| | - Petr Nejedly
- Bioelectronics, Neurophysiology, and Engineering Laboratory, Department of Neurology, Mayo Clinic, Rochester, MN, United States
- The Czech Academy of Sciences, Institute of Scientific Instruments, Brno, Czechia
| | - Benjamin H. Brinkmann
- Bioelectronics, Neurophysiology, and Engineering Laboratory, Department of Neurology, Mayo Clinic, Rochester, MN, United States
| | - Daniel Crepeau
- Bioelectronics, Neurophysiology, and Engineering Laboratory, Department of Neurology, Mayo Clinic, Rochester, MN, United States
| | - Filip Mivalt
- Bioelectronics, Neurophysiology, and Engineering Laboratory, Department of Neurology, Mayo Clinic, Rochester, MN, United States
- Faculty of Electrical Engineering and Communication, Department of Biomedical Engineering, Brno University of Technology, Brno, Czechia
| | - Nicholas M. Gregg
- Bioelectronics, Neurophysiology, and Engineering Laboratory, Department of Neurology, Mayo Clinic, Rochester, MN, United States
| | - Tal Pal Attia
- Bioelectronics, Neurophysiology, and Engineering Laboratory, Department of Neurology, Mayo Clinic, Rochester, MN, United States
| | - Victoria S. Marks
- Bioelectronics, Neurophysiology, and Engineering Laboratory, Department of Neurology, Mayo Clinic, Rochester, MN, United States
- Biomedical Engineering and Physiology Graduate Program, Mayo Clinic Graduate School of Biomedical Sciences, Rochester, MN, United States
| | - Lydia Wheeler
- Bioelectronics, Neurophysiology, and Engineering Laboratory, Department of Neurology, Mayo Clinic, Rochester, MN, United States
- Biomedical Engineering and Physiology Graduate Program, Mayo Clinic Graduate School of Biomedical Sciences, Rochester, MN, United States
- Mayo Clinic Alix School of Medicine, Rochester, MN, United States
| | - Tori E. Riccelli
- Mayo Clinic Alix School of Medicine, Rochester, MN, United States
| | - Jeffrey P. Staab
- Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, United States
- Department of Otorhinolaryngology, Mayo Clinic, Rochester, MN, United States
| | - Brian Nils Lundstrom
- Bioelectronics, Neurophysiology, and Engineering Laboratory, Department of Neurology, Mayo Clinic, Rochester, MN, United States
| | - Kai J. Miller
- Bioelectronics, Neurophysiology, and Engineering Laboratory, Department of Neurology, Mayo Clinic, Rochester, MN, United States
- Department of Neurosurgery, Mayo Clinic, Rochester, MN, United States
| | - Jamie Van Gompel
- Bioelectronics, Neurophysiology, and Engineering Laboratory, Department of Neurology, Mayo Clinic, Rochester, MN, United States
- Department of Neurosurgery, Mayo Clinic, Rochester, MN, United States
| | - Vaclav Kremen
- Bioelectronics, Neurophysiology, and Engineering Laboratory, Department of Neurology, Mayo Clinic, Rochester, MN, United States
- Czech Institute of Informatics, Robotics and Cybernetics, Czech Technical University in Prague, Prague, Czechia
| | - Paul E. Croarkin
- Bioelectronics, Neurophysiology, and Engineering Laboratory, Department of Neurology, Mayo Clinic, Rochester, MN, United States
- Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, United States
| | - Gregory A. Worrell
- Bioelectronics, Neurophysiology, and Engineering Laboratory, Department of Neurology, Mayo Clinic, Rochester, MN, United States
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159
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Ploski JE, Vaidya VA. The Neurocircuitry of Posttraumatic Stress Disorder and Major Depression: Insights Into Overlapping and Distinct Circuit Dysfunction-A Tribute to Ron Duman. Biol Psychiatry 2021; 90:109-117. [PMID: 34052037 PMCID: PMC8383211 DOI: 10.1016/j.biopsych.2021.04.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 04/13/2021] [Accepted: 04/13/2021] [Indexed: 12/14/2022]
Abstract
The neurocircuitry that contributes to the pathophysiology of posttraumatic stress disorder and major depressive disorder, psychiatric conditions that exhibit a high degree of comorbidity, likely involves both overlapping and unique structural and functional changes within multiple limbic brain regions. In this review, we discuss neurobiological alterations that are associated with posttraumatic stress disorder and major depressive disorder and highlight both similarities and differences that may exist between these disorders to argue for the existence of a shared neurobiology. We highlight the key contributions based on preclinical studies, emerging from the late Professor Ronald Duman's research, that have shaped our understanding of the neurocircuitry that contributes to both the etiopathology and treatment of major depressive disorder and posttraumatic stress disorder.
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Affiliation(s)
- Jonathan E. Ploski
- Department of Neuroscience and Molecular & Cell Biology, School of Behavioral and Brain Sciences, University of Texas at Dallas, GR41, 800 W Campbell Road, Richardson, TX 75080-3021, USA
| | - Vidita A. Vaidya
- Department of Biological Sciences, Tata Institute of Fundamental Research, 1 Homi Bhabha Road, Colaba, Mumbai, Maharashtra, 400005, India
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160
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Over-representation of fundamental decision variables in the prefrontal cortex underlies decision bias. Neurosci Res 2021; 173:1-13. [PMID: 34274406 DOI: 10.1016/j.neures.2021.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 06/15/2021] [Accepted: 07/13/2021] [Indexed: 11/24/2022]
Abstract
The brain is organized into anatomically distinct structures consisting of a variety of projection neurons. While such evolutionarily conserved neural circuit organization underlies the innate ability of animals to swiftly adapt to environments, they can cause biased cognition and behavior. Although recent studies have begun to address the causal importance of projection-neuron types as distinct computational units, it remains unclear how projection types are functionally organized in encoding variables during cognitive tasks. This review focuses on the neural computation of decision making in the prefrontal cortex and discusses what decision variables are encoded by single neurons, neuronal populations, and projection type, alongside how specific projection types constrain decision making. We focus particularly on "over-representations" of distinct decision variables in the prefrontal cortex that reflect the biological and subjective significance of the variables for the decision makers. We suggest that task-specific over-representation in the prefrontal cortex involves the refinement of the given decision making, while generalized over-representation of fundamental decision variables is associated with suboptimal decision biases, including pathological ones such as those in patients with psychiatric disorders. Such over-representation of the fundamental decision variables in the prefrontal cortex appear to be tightly constrained by afferent and efferent connections that can be optogenetically intervened on. These ideas may provide critical insights into potential therapeutic targets for psychiatric disorders, including addiction and depression.
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161
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Macro- and Microscale Stress-Associated Alterations in Brain Structure: Translational Link With Depression. Biol Psychiatry 2021; 90:118-127. [PMID: 34001371 DOI: 10.1016/j.biopsych.2021.04.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 04/06/2021] [Accepted: 04/07/2021] [Indexed: 02/06/2023]
Abstract
Major depressive disorder (MDD) is a stress-related disorder associated with many cytoarchitectural and neurochemical changes. However, the majority of these changes cannot be reliably detected in the living brain. The examination of animal stress models and postmortem human brain tissue has significantly contributed to our understanding of the pathophysiology of MDD. Ronald Duman's work in humans and in rodent models was critical to the investigation of the contribution of synaptic deficits to MDD and chronic stress pathology, their role in the development and expression of depressive-like behavior, and reversal by novel drugs. Here, we review evidence from magnetic resonance imaging in humans and animals that suggests that corticolimbic alterations are associated with depression symptomatology. We also discuss evidence of cytoarchitectural alterations affecting neurons, astroglia, and synapses in MDD and highlight how similar changes are described in rodent chronic stress models and are linked to the emotion-related behavioral deficits. Finally, we report on the latest approaches developed to measure the synaptic and astroglial alterations in vivo, using positron emission tomography, and how it can inform on the contribution of MDD-associated cytoarchitectural alterations to the symptomatology and the treatment of stress-related disorders.
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162
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Pereyra AE, Mininni CJ, Zanutto BS. Information capacity and robustness of encoding in the medial prefrontal cortex are modulated by the bioavailability of serotonin and the time elapsed from the cue during a reward-driven task. Sci Rep 2021; 11:13882. [PMID: 34230550 PMCID: PMC8260631 DOI: 10.1038/s41598-021-93313-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 06/23/2021] [Indexed: 02/06/2023] Open
Abstract
Serotonin (5-HT) is a key neuromodulator of medial prefrontal cortex (mPFC) functions. Pharmacological manipulation of systemic 5-HT bioavailability alters the electrical activity of mPFC neurons. However, 5-HT modulation at the population level is not well characterized. In the present study, we made single neuron extracellular recordings in the mPFC of rats performing an operant conditioning task, and analyzed the effect of systemic administration of fluoxetine (a selective serotonin reuptake inhibitor) on the information encoded in the firing activity of the neural population. Chronic (longer than 15 days), but not acute (less than 15 days), fluoxetine administration reduced the firing rate of mPFC neurons. Moreover, fluoxetine treatment enhanced pairwise entropy but diminished noise correlation and redundancy in the information encoded, thus showing how mPFC differentially encodes information as a function of 5-HT bioavailability. Information about the occurrence of the reward-predictive stimulus was maximized during reward consumption, around 3 to 4 s after the presentation of the cue, and it was higher under chronic fluoxetine treatment. However, the encoded information was less robust to noise corruption when compared to control conditions.
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Affiliation(s)
- A Ezequiel Pereyra
- Instituto de Biología y Medicina Experimental (IBYME), CONICET, Buenos Aires, Argentina.
| | - Camilo J Mininni
- Instituto de Biología y Medicina Experimental (IBYME), CONICET, Buenos Aires, Argentina
| | - B Silvano Zanutto
- Instituto de Biología y Medicina Experimental (IBYME), CONICET, Buenos Aires, Argentina
- Universidad de Buenos Aires, Facultad de Ingeniería, Instituto de Ingeniería Biomédica, Buenos Aires, Argentina
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163
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Song L, Wen W, Liu J, Jin X, Yang J. Inflammatory state and autism-like behavioral phenotype of offspring induced by maternal exposure to low-dose chemical mixtures during pregnancy in mice. Zhejiang Da Xue Xue Bao Yi Xue Ban 2021; 50:279-289. [PMID: 34402257 PMCID: PMC8710261 DOI: 10.3724/zdxbyxb-2021-0182] [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] [Received: 03/31/2021] [Accepted: 04/29/2021] [Indexed: 11/25/2022]
Abstract
To investigate the effects of maternal exposure to 13 chemicals mixture (CM) during pregnancy on pregnancy outcome and health status of maternal/offspring mice. C57BL/6 pregnant mice were given drinking water containing carbaryl dimethoate glyphosate methomyl methyl parathion triadimefon aspartame sodium benzoate calcium disodium ethylene diamine tetra-acetate ethylparaben butylparaben bisphenol A and acacia gum The effects of CM exposure on pregnancy outcome, health status of dams/offspring, levels of circulating inflammatory cytokines in dams/offspring and emotional related behaviors of offspring were evaluated. CM exposure during pregnancy had no significant effect on pregnancy outcome, liver function, body weight of the dams in late pregnancy and uterine/ovarian weight after delivery, however, it led to an increase in maternal serum IFN-γ level (<0.05). CM exposure during pregnancy had no significant effect on the liver function of offspring, but increased the serum IFN-γ, prefrontal cortex IFN-γ, and TNF-α and hippocampus IFN-γ levels in the offspring(all <0.01). In addition, the offspring of CM group showed significant abnormal emotion-related (autism-like) behaviors in adulthood, especially in male offspring. Low dose CM exposure during pregnancy may induce inflammation status in dams/offspring, and lead to autism-like behaviors in offspring, indicating the potential effects of low dose CM exposure on human maternal and infant health.
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Affiliation(s)
- Linyang Song
- Guangdong Key Laboratory of Pharmaceutical Bioactive Substances
| | - Wenzhi Wen
- Guangdong Key Laboratory of Pharmaceutical Bioactive Substances
| | - Jing Liu
- Guangdong Key Laboratory of Pharmaceutical Bioactive Substances
| | - Xiaobao Jin
- Guangdong Key Laboratory of Pharmaceutical Bioactive Substances
| | - Junhua Yang
- Guangdong Key Laboratory of Pharmaceutical Bioactive Substances
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164
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Liu Q, Zhang Z, Zhang W. Optogenetic Dissection of Neural Circuits Underlying Stress-Induced Mood Disorders. Front Psychol 2021; 12:600999. [PMID: 34220601 PMCID: PMC8249197 DOI: 10.3389/fpsyg.2021.600999] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 03/22/2021] [Indexed: 11/13/2022] Open
Abstract
Objectives: This review aims to (i) summarize the literature on optogenetic applications of different stress-induced mood disorder models of the medial prefrontal cortex (mPFC) and its projection circuits, and (ii) examine methodological variability across the literature and how such variations may influence the underlying circuits of stress-induced mood disorders. Methods: A variety of databases (PubMed, Web of Science, Elsevier, Springer, and Wiley) were systematically searched to identify optogenetic studies that applied to mood disorders in the context of stress. Results: Eleven studies on optogenetic stimulation of the mPFC and the effect of its efferent circuitry on anxiety- and depression-like behaviors in different rodent models were selected. The results showed that the optogenetics (i) can provide insights into the underlying circuits of mood disorders in the context of stress (ii) and also points out new therapeutic strategies for treating mood disorders. Conclusions: These findings indicate a clear role for the mPFC in social avoidance, and highlight the central role of stress reactivity circuitry that may be targeted for the treatment of stress-induced mood disorders.
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Affiliation(s)
- Qing Liu
- College of Education and Technology, Zhejiang University of Technology, Hangzhou, China
| | - Zhinuo Zhang
- College of Education and Technology, Zhejiang University of Technology, Hangzhou, China
| | - Wenjuan Zhang
- Mental Health Education Center, Xidian University, Xi'an, China
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165
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Satyal MK, Basso JC, Tegge AN, Metpally AR, Bickel WK. A novel model of obesity prediction: Neurobehaviors as targets for treatment. Behav Neurosci 2021; 135:426-442. [PMID: 34264693 PMCID: PMC9955328 DOI: 10.1037/bne0000385] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Obesity is a worldwide epidemic that is on the rise, with approximately 30% of the world population classified as either overweight or obese. The United States has some of the highest rates of obesity, and in most countries in the world, obesity now poses more of a serious health concern than malnutrition. Obesity is a chronic, relapsing disorder that is both preventable and treatable; however, traditional interventions that target eating less and exercising more have low success rates, especially in the long term. Therefore, identifying the neurobehaviors that predict obesity is important to help identify targets to decrease BMI and improve obesity outcomes. Using the Competing Neurobehavioral Decisions System (CNDS) Theory, we hypothesized that individuals with obesity compared to individuals without obesity would display neurobehaviors marked by a hyperactive impulsive system and a hypoactive executive system. To test this hypothesis, we collected data from a battery of self-reported measures and neurocognitive assessments through Amazon Mechanical Turk from n = 178 obese (BMI ≥ 30) and n = 198 nonobese controls who were weight stable for the past 3 months. We found that compared to the nonobese control group, individuals with obesity showed heightened delay discounting (a marker of CNDS imbalance), impaired motivation, poor self-image, decreased affective state, and impaired executive function. Using a Bayesian network approach, we established a neurobehavioral model that predicts obesity with 64.4% accuracy and indicates an imbalance between impulsive and executive neural systems. Results from our study suggest that interventions targeting neurobehaviors may be integral to help improve obesity outcomes. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
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Affiliation(s)
- Medha K. Satyal
- Graduate Program in Translational Biology, Medicine, and Health, Virginia Tech, Blacksburg, Virginia, United States
| | - Julia C. Basso
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Virginia Tech, Roanoke, Virginia, United States,Department of Human Nutrition, Foods, and Exercise, Virginia Tech, Blacksburg, Virginia, United States,School of Neuroscience, Virginia Tech, Blacksburg, Virginia, United States
| | - Allison N. Tegge
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Virginia Tech, Roanoke, Virginia, United States,Department of Statistics, Virginia Tech, Blacksburg, Virginia, United States
| | - Anvitha R. Metpally
- Department of Human Nutrition, Foods, and Exercise, Virginia Tech, Blacksburg, Virginia, United States
| | - Warren K. Bickel
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Virginia Tech, Roanoke, Virginia, United States
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166
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Pentkowski NS, Rogge-Obando KK, Donaldson TN, Bouquin SJ, Clark BJ. Anxiety and Alzheimer's disease: Behavioral analysis and neural basis in rodent models of Alzheimer's-related neuropathology. Neurosci Biobehav Rev 2021; 127:647-658. [PMID: 33979573 DOI: 10.1016/j.neubiorev.2021.05.005] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 04/28/2021] [Accepted: 05/05/2021] [Indexed: 11/29/2022]
Abstract
Alzheimer's disease (AD) pathology is commonly associated with cognitive decline but is also composed of neuropsychiatric symptoms including psychological distress and alterations in mood, including anxiety and depression. Emotional dysfunction in AD is frequently modeled using tests of anxiety-like behavior in transgenic rodents. These tests often include the elevated plus-maze, light/dark test and open field test. In this review, we describe prototypical behavioral paradigms used to examine emotional dysfunction in transgenic models of AD, specifically anxiety-like behavior. Next, we summarize the results of studies examining anxiety-like behavior in transgenic rodents, noting that the behavioral outcomes using these paradigms have produced inconsistent results. We suggest that future research will benefit from using a battery of tests to examine emotional behavior in transgenic AD models. We conclude by discussing putative, overlapping neurobiological mechanisms underlying AD-related neuropathology, stress and anxiety-like behavior reported in AD models.
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Affiliation(s)
- Nathan S Pentkowski
- Department of Psychology, University of New Mexico, Albuquerque, NM, 87109, Mexico.
| | | | - Tia N Donaldson
- Department of Psychology, University of New Mexico, Albuquerque, NM, 87109, Mexico
| | - Samuel J Bouquin
- Department of Psychology, University of New Mexico, Albuquerque, NM, 87109, Mexico
| | - Benjamin J Clark
- Department of Psychology, University of New Mexico, Albuquerque, NM, 87109, Mexico.
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167
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Anastasiades PG, Carter AG. Circuit organization of the rodent medial prefrontal cortex. Trends Neurosci 2021; 44:550-563. [PMID: 33972100 DOI: 10.1016/j.tins.2021.03.006] [Citation(s) in RCA: 101] [Impact Index Per Article: 33.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 03/12/2021] [Accepted: 03/31/2021] [Indexed: 12/14/2022]
Abstract
The prefrontal cortex (PFC) orchestrates higher brain function and becomes disrupted in many mental health disorders. The rodent medial PFC (mPFC) possesses an enormous variety of projection neurons and interneurons. These cells are engaged by long-range inputs from other brain regions involved in cognition, motivation, and emotion. They also communicate in the local network via specific connections between excitatory and inhibitory cells. In this review, we describe the cellular diversity of the rodent mPFC, the impact of long-range afferents, and the specificity of local microcircuits. We highlight similarities with and differences between other cortical areas, illustrating how the circuit organization of the mPFC may give rise to its unique functional roles.
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Affiliation(s)
- Paul G Anastasiades
- Department of Translational Health Sciences, University of Bristol, Dorothy Hodgkin Building, Whitson Street, Bristol BS1 3NY, UK
| | - Adam G Carter
- Center for Neural Science, New York University, 4 Washington Place, New York, NY 10003, USA.
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168
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Carboni E, Carta AR, Carboni E, Novelli A. Repurposing Ketamine in Depression and Related Disorders: Can This Enigmatic Drug Achieve Success? Front Neurosci 2021; 15:657714. [PMID: 33994933 PMCID: PMC8120160 DOI: 10.3389/fnins.2021.657714] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 03/31/2021] [Indexed: 12/27/2022] Open
Abstract
Repurposing ketamine in the therapy of depression could well represent a breakthrough in understanding the etiology of depression. Ketamine was originally used as an anesthetic drug and later its use was extended to other therapeutic applications such as analgesia and the treatment of addiction. At the same time, the abuse of ketamine as a recreational drug has generated a concern for its psychotropic and potential long-term effects; nevertheless, its use as a fast acting antidepressant in treatment-resistant patients has boosted the interest in the mechanism of action both in psychiatry and in the wider area of neuroscience. This article provides a comprehensive overview of the actions of ketamine and intends to cover: (i) the evaluation of its clinical use in the treatment of depression and suicidal behavior; (ii) the potential use of ketamine in pediatrics; (iii) a description of its mechanism of action; (iv) the involvement of specific brain areas in producing antidepressant effects; (v) the potential interaction of ketamine with the hypothalamic-pituitary-adrenal axis; (vi) the effect of ketamine on neuronal transmission in the bed nucleus of stria terminalis and on its output; (vii) the evaluation of any gender-dependent effects of ketamine; (viii) the interaction of ketamine with the inflammatory processes involved in depression; (ix) the evaluation of the effects observed with single or repeated administration; (x) a description of any adverse or cognitive effects and its abuse potential. Finally, this review attempts to assess whether ketamine's use in depression can improve our knowledge of the etiopathology of depression and whether its therapeutic effect can be considered an actual cure for depression rather than a therapy merely aimed to control the symptoms of depression.
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Affiliation(s)
- Ezio Carboni
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Anna R. Carta
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Elena Carboni
- Unit of Paediatrics, ASST Cremona Maggiore Hospital, Cremona, Italy
| | - Antonello Novelli
- Department of Psychology and University Institute of Biotechnology of Asturias, University of Oviedo, Oviedo, Spain
- Sanitary Institute of the Princedom of Asturias, Oviedo, Spain
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169
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Lv QY, Chen MM, Li Y, Yu Y, Liao H. Brain circuit dysfunction in specific symptoms of depression. Eur J Neurosci 2021; 55:2393-2403. [PMID: 33818849 DOI: 10.1111/ejn.15221] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 03/08/2021] [Accepted: 03/31/2021] [Indexed: 12/17/2022]
Abstract
Since the depressive disorder manifests complex and diverse symptoms clinically, its pathological mechanism and therapeutic options are difficult to determine. In recent years, the advent of optogenetics, chemogenetics and viral tracing techniques, along with the well-established rodent model of depression, has led to a shift in the focus of depression research from single molecules to neural circuits. In virtue of the powerful tools above, psychiatric disorder such as depression could be well related to the disfunction of brain's connection. Moreover, compelling studies also support that the diversity of depressive behaviour could be involved with the discrete changes in a distinct circuit of the brain. Therefore, summarising the differential changes of the neural circuits in mice with depression-like behaviour may provide a better understanding of the causal relationships between neural circuit and depressive behaviour. Here, we focus on the changes in the neural circuitry underlying various depression-like phenotypes, including motivation, despair, social avoidance and comorbid sequelae, which may provide an explanation to circuit-specific discrepancy in depression-like behaviour.
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Affiliation(s)
- Qun Y Lv
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, China
| | - Ming M Chen
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, China
| | - Yu Li
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, China
| | - Yang Yu
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, China
| | - Hong Liao
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, China
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170
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Selecting antidepressants according to a drug-by-environment interaction: A comparison of fluoxetine and minocycline effects in mice living either in enriched or stressful conditions. Behav Brain Res 2021; 408:113256. [PMID: 33775780 DOI: 10.1016/j.bbr.2021.113256] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 02/18/2021] [Accepted: 03/18/2021] [Indexed: 11/23/2022]
Abstract
Selective serotonin reuptake inhibitors (SSRIs) are the first-line treatment for major depressive disorder. It has been recently proposed that these drugs, by enhancing neural plasticity, amplify the influences of the living conditions on mood. Consequently, SSRI outcome depends on the quality of the environment, improving symptomatology mainly in individuals living in favorable conditions. In adverse conditions, drugs with a different mechanism of action might have higher efficacy. The antibiotic minocycline, with neuroprotective and anti-inflammatory properties, has been recently proposed as a novel potential antidepressant treatment. To explore the drug-by-environment interaction, we compared the effects on depressive-like behavior and neural plasticity of the SSRI fluoxetine and minocycline in enriched and stressful conditions. We first exposed C57BL/6 adult female mice to 14 days of chronic unpredictable mild stress to induce a depressive-like profile. Afterward, mice received vehicle, fluoxetine, or minocycline for 21 days, while exposed to either enriched or stressful conditions. During the first five days, fluoxetine led to an improvement in enrichment but not in stress. By contrast, minocycline led to an improvement in both conditions. After 21 days, all groups showed a significant improvement in enrichment while fluoxetine worsened the depressive like behavior in stress. The effects of the drugs on neural plasticity, measured as long-term potentiation, were also environment-dependent. Overall, we show that the environment affects fluoxetine but not minocycline outcome, indicating that the latter represents a potential alternative to SSRIs to treat depressed patients living in adverse conditions. From a translation perspective, our finding call for considering the drug-by-environment interaction to select the most effective pharmacological treatment.
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171
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Pruitt A, Allsop AS. Understanding the Role of a Molecularly Defined Social Circuit. Biol Psychiatry 2021; 89:421-423. [PMID: 33541524 DOI: 10.1016/j.biopsych.2020.12.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 12/18/2020] [Accepted: 12/18/2020] [Indexed: 11/18/2022]
Affiliation(s)
- April Pruitt
- Interdepartmental Neuroscience Program, Yale University, New Haven, Connecticut; Neuroscience Research Training Program, Department of Psychiatry, Yale University, New Haven, Connecticut; Division of Molecular Psychiatry, Abraham Ribicoff Research Facilities, Yale School of Medicine, New Haven, Connecticut
| | - Aza Stephen Allsop
- Neuroscience Research Training Program, Department of Psychiatry, Yale University, New Haven, Connecticut; Division of Molecular Psychiatry, Abraham Ribicoff Research Facilities, Yale School of Medicine, New Haven, Connecticut.
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172
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Sex-Specific Role for SLIT1 in Regulating Stress Susceptibility. Biol Psychiatry 2021; 91:81-91. [PMID: 33896623 PMCID: PMC8390577 DOI: 10.1016/j.biopsych.2021.01.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 12/22/2020] [Accepted: 01/06/2021] [Indexed: 01/03/2023]
Abstract
BACKGROUND Major depressive disorder is a pervasive and debilitating syndrome characterized by mood disturbances, anhedonia, and alterations in cognition. While the prevalence of major depressive disorder is twice as high for women as men, little is known about the molecular mechanisms that drive sex differences in depression susceptibility. METHODS We discovered that SLIT1, a secreted protein essential for axonal navigation and molecular guidance during development, is downregulated in the adult ventromedial prefrontal cortex (vmPFC) of women with depression compared with healthy control subjects, but not in men with depression. This sex-specific downregulation of Slit1 was also observed in the vmPFC of mice exposed to chronic variable stress. To identify a causal, sex-specific role for SLIT1 in depression-related behavioral abnormalities, we performed knockdown (KD) of Slit1 expression in the vmPFC of male and female mice. RESULTS When combined with stress exposure, vmPFC Slit1 KD reflected the human condition by inducing a sex-specific increase in anxiety- and depression-related behaviors. Furthermore, we found that vmPFC Slit1 KD decreased the dendritic arborization of vmPFC pyramidal neurons and decreased the excitability of the neurons in female mice, effects not observed in males. RNA sequencing analysis of the vmPFC after Slit1 KD in female mice revealed an augmented transcriptional stress signature. CONCLUSIONS Together, our findings establish a crucial role for SLIT1 in regulating neurophysiological and transcriptional responses to stress within the female vmPFC and provide mechanistic insight into novel signaling pathways and molecular factors influencing sex differences in depression susceptibility.
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173
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Grieco SF, Qiao X, Johnston KG, Chen L, Nelson RR, Lai C, Holmes TC, Xu X. Neuregulin signaling mediates the acute and sustained antidepressant effects of subanesthetic ketamine. Transl Psychiatry 2021; 11:144. [PMID: 33627623 PMCID: PMC7904825 DOI: 10.1038/s41398-021-01255-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/09/2021] [Accepted: 02/01/2021] [Indexed: 01/03/2023] Open
Abstract
Subanesthetic ketamine evokes rapid antidepressant effects in human patients that persist long past ketamine's chemical half-life of ~2 h. Ketamine's sustained antidepressant action may be due to modulation of cortical plasticity. We find that ketamine ameliorates depression-like behavior in the forced swim test in adult mice, and this depends on parvalbumin-expressing (PV) neuron-directed neuregulin-1 (NRG1)/ErbB4 signaling. Ketamine rapidly downregulates NRG1 expression in PV inhibitory neurons in mouse medial prefrontal cortex (mPFC) following a single low-dose ketamine treatment. This NRG1 downregulation in PV neurons co-tracks with the decreases in synaptic inhibition to mPFC excitatory neurons for up to a week. This results from reduced synaptic excitation to PV neurons, and is blocked by exogenous NRG1 as well as by PV targeted ErbB4 receptor knockout. Thus, we conceptualize that ketamine's effects are mediated through rapid and sustained cortical disinhibition via PV-specific NRG1 signaling. Our findings reveal a novel neural plasticity-based mechanism for ketamine's acute and long-lasting antidepressant effects.
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Affiliation(s)
- Steven F. Grieco
- grid.266093.80000 0001 0668 7243Department of Anatomy and Neurobiology, School of Medicine, University of California, Irvine, CA 92697-1275 USA
| | - Xin Qiao
- grid.266093.80000 0001 0668 7243Department of Anatomy and Neurobiology, School of Medicine, University of California, Irvine, CA 92697-1275 USA
| | - Kevin G. Johnston
- grid.266093.80000 0001 0668 7243Department of Mathematics, University of California, Irvine, CA 92697-3875 USA
| | - Lujia Chen
- grid.266093.80000 0001 0668 7243Department of Anatomy and Neurobiology, School of Medicine, University of California, Irvine, CA 92697-1275 USA
| | - Renetta R. Nelson
- grid.266093.80000 0001 0668 7243Department of Anatomy and Neurobiology, School of Medicine, University of California, Irvine, CA 92697-1275 USA
| | - Cary Lai
- grid.411377.70000 0001 0790 959XDepartment of Psychological and Brain Sciences, Indiana University, Bloomington, IN 47405-7000 USA
| | - Todd C. Holmes
- grid.19006.3e0000 0000 9632 6718Department of Physiology and Biophysics, School of Medicine, Universityof California, Irvine, CA 92697- 4560 USA ,grid.266093.80000 0001 0668 7243The Center for Neural Circuit Mapping, University of California, Irvine, CA 92697 USA
| | - Xiangmin Xu
- Department of Anatomy and Neurobiology, School of Medicine, University of California, Irvine, CA, 92697-1275, USA. .,The Center for Neural Circuit Mapping, University of California, Irvine, CA, 92697, USA. .,Department of Biomedical Engineering, University of California, Irvine, CA, 92697-2715, USA. .,Department of Microbiology and Molecular Genetics, University of California, Irvine, CA, 92697-4025, USA. .,Department of Computer Science, University of California, Irvine, CA, 92697-3435, USA.
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174
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Min R, Chen Z, Wang Y, Deng Z, Zhang Y, Deng Y. Quantitative proteomic analysis of cortex in the depressive-like behavior of rats induced by the simulated complex space environment. J Proteomics 2021; 237:104144. [PMID: 33581354 DOI: 10.1016/j.jprot.2021.104144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 01/29/2021] [Accepted: 01/29/2021] [Indexed: 12/29/2022]
Abstract
Long-term spaceflight has always been challenging for astronauts due to the extremely complicated space environmental conditions, including microgravity, noise, confinement, and circadian rhythms disorders, which may cause adverse effects on astronauts' mental health, such as anxiety and depression. Unfortunately, so far, the underlying mechanism is not fully understood. Hence, a novel type of box and rat cage was designed and built in order to simulate complex space environment on the ground. After earth-based simulation for 21 days, the rats exhibited the depressive-like behavior according to the sucrose preference and forced swimming test. We applied label-free quantitative proteomics to explore the molecular mechanisms of depressive-like behavior through global changes in cortical protein abundance, given that the cortex is the hub of emotional management. The results revealed up-regulated spliceosome proteins in contrast to down-regulated oxidative phosphorylation (OXPHOS), glutamatergic, and GABAergic synapse related proteins in the simulated complex space environment (SCSE) group. Furthermore, PSD-95 protein was found down-regulated in mass spectrometry, reflecting its role in the psychopathology of depression, which was further validated by Western blotting. These findings provide valuable information to better understand the mechanisms of depressive-like behavior. SIGNIFICANCE: Quantitative proteomic analysis can quantify differentially abundant proteins related to a variety of potential signaling pathways in the rat cortex in the simulated complex space environment. These findings not only provide valuable information to better understand the mechanisms of depressive-like behavior, but also might offer the potential targets and develop countermeasures for the mental disorders to maintain the health of astronauts during the long-term spaceflight.
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Affiliation(s)
- Rui Min
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China
| | - Zixuan Chen
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China
| | - Yun Wang
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China; Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100007, China
| | - Zixuan Deng
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China
| | - Yongqian Zhang
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China.
| | - Yulin Deng
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China
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175
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Tang C, Hu J. HDAC1-Mediated MicroRNA-124-5p Regulates NPY to Affect Learning and Memory Abilities in Rats with Depression. NANOSCALE RESEARCH LETTERS 2021; 16:28. [PMID: 33566202 PMCID: PMC7876219 DOI: 10.1186/s11671-021-03477-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 01/11/2021] [Indexed: 05/04/2023]
Abstract
Researches pivoting on histone deacetylases (HDACs) in depression have been excessively conducted, but not much on HDAC1. Therein, the present study is launched to disclose the mechanism of HDAC1/microRNA (miR)-124-5p/neuropeptide Y (NPY) axis in depression. Sprague Dawley rats were stimulated by chronic unpredictable mild stress to establish depression models. Depressed rats were injected with inhibited HDAC1 or suppressed miR-124-5p to explore their roles in body weight, learning and memory abilities, oxidative stress and inflammation in serum and neurotransmitter expression in hippocampal tissues. MiR-124-5p, HDAC1 and NPY expression in the hippocampus were tested. The interactions of miR-124-5p, HDAC1 and NPY expression were also confirmed. Higher miR-124-5p and HDAC1 and lower NPY expression levels were found in the hippocampus of depressed rats. Inhibited miR-124-5p or suppressed HDAC1 attenuated learning and memory abilities and increased body weight of depressed rats. Knockdown of miR-124-5p or inhibition of HDAC1 suppressed oxidative stress and inflammation and promoted neurotransmitter expression of depressed rats. HDAC1 mediated miR-124-5p to regulate NPY. Knockdown of NPY abolished the protective effects of inhibited miR-124-5p on depressed rats. Our study illustrates that suppression of either miR-124-5p or HDAC1 up-regulates NPY to improve memory and learning abilities in depressed mice, which may update the existed knowledge of depression and provide a novel reference for treatment of depression.
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Affiliation(s)
- Chunling Tang
- Department of Psychiatry, The First Affiliated Hospital of Harbin Medical University, 23 Youzheng Street, Nangang District, Harbin, 150001, Heilongjiang, China
| | - Jian Hu
- Department of Psychiatry, The First Affiliated Hospital of Harbin Medical University, 23 Youzheng Street, Nangang District, Harbin, 150001, Heilongjiang, China.
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176
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Vahid-Ansari F, Albert PR. Rewiring of the Serotonin System in Major Depression. Front Psychiatry 2021; 12:802581. [PMID: 34975594 PMCID: PMC8716791 DOI: 10.3389/fpsyt.2021.802581] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 11/17/2021] [Indexed: 12/14/2022] Open
Abstract
Serotonin is a key neurotransmitter that is implicated in a wide variety of behavioral and cognitive phenotypes. Originating in the raphe nuclei, 5-HT neurons project widely to innervate many brain regions implicated in the functions. During the development of the brain, as serotonin axons project and innervate brain regions, there is evidence that 5-HT plays key roles in wiring the developing brain, both by modulating 5-HT innervation and by influencing synaptic organization within corticolimbic structures. These actions are mediated by 14 different 5-HT receptors, with region- and cell-specific patterns of expression. More recently, the role of the 5-HT system in synaptic re-organization during adulthood has been suggested. The 5-HT neurons have the unusual capacity to regrow and reinnervate brain regions following insults such as brain injury, chronic stress, or altered development that result in disconnection of the 5-HT system and often cause depression, anxiety, and cognitive impairment. Chronic treatment with antidepressants that amplify 5-HT action, such as selective serotonin reuptake inhibitors (SSRIs), appears to accelerate the rewiring of the 5-HT system by mechanisms that may be critical to the behavioral and cognitive improvements induced in these models. In this review, we survey the possible 5-HT receptor mechanisms that could mediate 5-HT rewiring and assess the evidence that 5-HT-mediated brain rewiring is impacting recovery from mental illness. By amplifying 5-HT-induced rewiring processes using SSRIs and selective 5-HT agonists, more rapid and effective treatments for injury-induced mental illness or cognitive impairment may be achieved.
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Affiliation(s)
- Faranak Vahid-Ansari
- Ottawa Hospital Research Institute (Neuroscience), University of Ottawa Brain and Mind Research Institute, Ottawa, ON, Canada
| | - Paul R Albert
- Ottawa Hospital Research Institute (Neuroscience), University of Ottawa Brain and Mind Research Institute, Ottawa, ON, Canada
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177
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Ucp2-dependent microglia-neuronal coupling controls ventral hippocampal circuit function and anxiety-like behavior. Mol Psychiatry 2021; 26:2740-2752. [PMID: 33879866 PMCID: PMC8056795 DOI: 10.1038/s41380-021-01105-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 03/08/2021] [Accepted: 04/06/2021] [Indexed: 11/08/2022]
Abstract
Microglia have been implicated in synapse remodeling by phagocytosis of synaptic elements in the adult brain, but the mechanisms involved in the regulation of this process are ill-defined. By examining microglia-neuronal interaction in the ventral hippocampus, we found a significant reduction in spine synapse number during the light phase of the light/dark cycle accompanied by increased microglia-synapse contacts and an elevated amount of microglial phagocytic inclusions. This was followed by a transient rise in microglial production of reactive oxygen species (ROS) and a concurrent increase in expression of uncoupling protein 2 (Ucp2), a regulator of mitochondrial ROS generation. Conditional ablation of Ucp2 from microglia hindered phasic elimination of spine synapses with consequent accumulations of ROS and lysosome-lipid droplet complexes, which resulted in hippocampal neuronal circuit dysfunctions assessed by electrophysiology, and altered anxiety-like behavior. These observations unmasked a novel and chronotypical interaction between microglia and neurons involved in the control of brain functions.
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178
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Aw E, Zhang Y, Carroll M. Microglial responses to peripheral type 1 interferon. J Neuroinflammation 2020; 17:340. [PMID: 33183319 PMCID: PMC7659169 DOI: 10.1186/s12974-020-02003-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 10/19/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Interferon α (IFNα) is a cytokine whose production is increased endogenously in response to viral infection and in autoimmune diseases such as systemic lupus erythematosus (SLE). An elevated IFNα signature has been associated with clinically observed neuro-behavioural deficits such as mild cognitive impairment, fatigue, depression and psychosis in these diseases. However, the mechanisms underlying these neuropsychiatric symptoms remain largely unknown, and it is as yet unclear how IFNα signalling might influence central nervous system (CNS) function. Aberrant microglia-mediated synaptic pruning and function has recently been implicated in several neurodegenerative and neuropsychiatric diseases, but whether and how IFNα modulates these functions are not well defined. METHODS Using a model of peripheral IFNα administration, we investigated gene expression changes due to IFNAR signalling in microglia. Bulk RNA sequencing on sorted microglia from wild type and microglia-specific Ifnar1 conditional knockout mice was performed to evaluate IFNα and IFNAR signalling-dependent changes in gene expression. Furthermore, the effects of IFNα on microglia morphology and synapse engulfment were assessed, via immunohistochemistry and flow cytometry. RESULTS We found that IFNα exposure through the periphery induces a unique gene signature in microglia that includes the expected upregulation of multiple interferon-stimulated genes (ISGs), as well as the complement component C4b. We additionally characterized several IFNα-dependent changes in microglial phenotype, including expression of CD45 and CD68, cellular morphology and presynaptic engulfment, that reveal subtle brain region-specific differences. Finally, by specifically knocking down expression of IFNAR1 on microglia, we show that these changes are largely attributable to direct IFNAR signalling on microglia and not from indirect signalling effects through other CNS parenchymal cell types which are capable of IFNα-IFNAR signal transduction. CONCLUSIONS Peripheral IFNα induces unique genetic and phenotypic changes in microglia that are largely dependent on direct signalling through microglial IFNAR. The IFNα-induced upregulation of C4b could play important roles in the context of aberrant synaptic pruning in neuropsychiatric disease.
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Affiliation(s)
- Ernest Aw
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA, USA
- Division of Medical Sciences, Harvard Medical School, Boston, MA, USA
| | - Yingying Zhang
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA, USA
| | - Michael Carroll
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA, USA.
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179
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Grover S, Reinhart RMG. Modulating Anterior Midcingulate Cortex Using Theta Burst Stimulation. BIOLOGICAL PSYCHIATRY: COGNITIVE NEUROSCIENCE AND NEUROIMAGING 2020; 5:1007-1008. [PMID: 33161956 PMCID: PMC10074916 DOI: 10.1016/j.bpsc.2020.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 09/02/2020] [Indexed: 11/16/2022]
Affiliation(s)
- Shrey Grover
- Department of Psychological and Brain Sciences, Boston University, Boston, Massachusetts
| | - Robert M G Reinhart
- Department of Psychological and Brain Sciences, Boston University, Boston, Massachusetts; Center for Systems Neuroscience, Boston University, Boston, Massachusetts; Cognitive Neuroimaging Center, Boston University, Boston, Massachusetts; Center for Research in Sensory Communication and Emerging Neural Technology, Boston University, Boston, Massachusetts.
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180
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Shen J, Lin L, Liao L, Liang W, Yang X, Lin K, Ke L, Zhang L, Kang J, Ding S, Li C, Zheng Z. The involvement of Notch1 signaling pathway in mid-aged female rats under chronic restraint stress. Neurosci Lett 2020; 738:135313. [PMID: 32827575 DOI: 10.1016/j.neulet.2020.135313] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Women are vulnerable to adverse stress events, especially during perimenopause. Substantial evidence has associated the impaired neuronal plasticity with abnormal behaviors under stressful conditions in animals. The Notch signaling pathway is critical for neuronal plasticity in the structure and function of brain areas. In this study, the mid-aged female rats were subjected to chronic restraint stress(CRS) in combination with isolated rearing for 6 weeks. The behavior tests and HPA activity were conducted to evaluate the model. The mRNA and protein levels of Notch1 signaling related genes in the hippocampus(HIP) and prefrontal cortex(PFC) were analyzed by RT-qPCR and western blotting. The promoter methylation levels were measured by bisulfite sequencing PCR analysis. CRS induced depression-like and anxiety-like behaviors in mid-aged stressed females, as shown by decreased locomotor activity, sucrose consumption and increased HPA activity. Moreover, after CRS, the rats exhibited decreased mRNA and protein levels in Jagged1, Notch1 and Hes5 in the HIP and Notch1, Hes1 and Hes5 in the PFC. However, there were no significant promotor methylation changes between the stressed and control female rats. These findings suggest that Notch1 signaling pathway may contribute to the behavioral changes following CRS in mid-aged female rats and the upstream cause of the gene expression changes needs to be further investigated.
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Affiliation(s)
- Jianying Shen
- Research Center of Neurobiology, Department of Biochemistry and Molecular Biology, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian Province, 350122, China
| | - Ling Lin
- Research Center of Neurobiology, Department of Biochemistry and Molecular Biology, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian Province, 350122, China
| | - Linghong Liao
- Fujian Key Laboratory of TCM Health State, Research Base of TCM Syndrome, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, 350122, China
| | - Wenna Liang
- Fujian Key Laboratory of TCM Health State, Research Base of TCM Syndrome, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, 350122, China
| | - Xiaoting Yang
- Fujian Key Laboratory of TCM Health State, Research Base of TCM Syndrome, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, 350122, China
| | - Kaimin Lin
- Fujian Key Laboratory of TCM Health State, Research Base of TCM Syndrome, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, 350122, China
| | - Long Ke
- Fujian Key Laboratory of TCM Health State, Research Base of TCM Syndrome, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, 350122, China
| | - Lingyuan Zhang
- Fujian Key Laboratory of TCM Health State, Research Base of TCM Syndrome, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, 350122, China
| | - Jie Kang
- Fujian Key Laboratory of TCM Health State, Research Base of TCM Syndrome, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, 350122, China
| | - Shanshan Ding
- Fujian Key Laboratory of TCM Health State, Research Base of TCM Syndrome, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, 350122, China
| | - Candong Li
- Fujian Key Laboratory of TCM Health State, Research Base of TCM Syndrome, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, 350122, China
| | - Zhihong Zheng
- Research Center of Neurobiology, Department of Biochemistry and Molecular Biology, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian Province, 350122, China.
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Abstract
An intranasal formulation of esketamine, the S enantiomer of ketamine, in conjunction with an oral antidepressant, has been approved by the FDA for treating treatment-resistant major depressive disorder (TRD) in 2019, almost 50 years after it was approved as an intravenous anesthetic. In contrast to traditional antidepressants, ketamine shows a rapid (within 2 h) and sustained (∼7 days) antidepressant effect and has significant positive effects on antisuicidal ideation. Ketamine's antidepressant mechanism is predominantly mediated by the N-methyl-d-aspartate receptor (NMDA) receptor, although NMDA-independent mechanisms are not ruled out. At the neurocircuitry level, ketamine affects the brain's reward and mood circuitry located in the corticomesolimbic structures involving the hippocampus, nucleus accumbens, and prefrontal cortex. Repurposing of ketamine for treating TRD provided a new understanding of the pathophysiology of depression, a paradigm shift from monoamine to glutamatergic neurotransmission, thus making it a unique tool to investigate the brain and its complex neurocircuitries.
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Affiliation(s)
- Joydip Das
- Department of Pharmacological & Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas 77204, United States
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182
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Coussement C, de Vega MR, Heeren A. The Impact of Anodal tDCS on the Attentional Networks as a Function of Trait Anxiety and Depressive Symptoms: A Preregistered Double-Blind Sham-Controlled Experiment. CLINICAL NEUROPSYCHIATRY 2020; 17:225-235. [PMID: 34908998 PMCID: PMC8629077 DOI: 10.36131/cnfioritieditore20200404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE Attention is a multifaceted construct, including three distinct attentional networks: the alerting, orienting, and executive conflict networks. Recently, researchers have started to envision strategies to enhance the attentional networks, and transcranial Direct Current Stimulation (tDCS) has emerged as a promising tool to do so, especially regarding the executive conflict network. On the other hand, other research lines have suggested that anodal tDCS might yield more substantial impacts among depressive and anxious participants. METHOD In this preregistered study, we thus examined two questions. First, we wanted to replicate previous observations and tested whether anodal tDCS does improve the executive conflict network's efficiency. Second, we set out to clarify the impact of anxiety and depressive symptoms on this effect. To do so, we adopted a double-blind within-subject protocol in an unselected sample (n = 50) and delivered a single session of anodal- applied over the dorsolateral part of the left prefrontal cortex-versus sham tDCS during the completion of a task assessing the attentional networks. We assessed anxiety and depressive symptoms at baseline. RESULTS AND CONCLUSIONS Although there were no significant direct effects of tDCS on the attentional networks, we found that the higher the levels of depression and trait anxiety, the larger the executive conflict network's enhancement during tDCS. By highlighting the importance of trait anxiety and depression when considering the impact of tDCS on the attentional networks, this study fulfills a valuable niche in clinical neuroscience, wherein preclinical data provide critical clues for larger, more definitive future translational efforts.
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Affiliation(s)
- Charlotte Coussement
- Psychological Sciences Research Institute, Université catholique de Louvain, Louvain-la-Neuve, Belgium,Department of Clinical Research and Scientific Publications, Le Beau Vallon – Psychiatric Hospital, Namur, Belgium
| | | | - Alexandre Heeren
- Psychological Sciences Research Institute, Université catholique de Louvain, Louvain-la-Neuve, Belgium,Institute of Neuroscience, Université catholique de Louvain, Brussels, Belgium,Corresponding author Alexandre Heeren, Psychological Sciences Research Institute, Université catholique de Louvain, 10 Place du Cardinal Mercier, 1348 Louvain-la-Neuve, Belgium. E-mail:
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Shen J, Lin L, Liao L, Liang W, Yang X, Lin K, Ke L, Zhang L, Kang J, Ding S, Li C, Zheng Z. WITHDRAWN: The Involvement of Notch1 Signaling Pathway in Mid-aged Female Rats under Chronic Restraint Stress. Neurosci Lett 2020:135244. [PMID: 32652209 DOI: 10.1016/j.neulet.2020.135244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 03/18/2020] [Accepted: 07/07/2020] [Indexed: 11/26/2022]
Abstract
This article has been withdrawn at the request of the Editor-in-Chief. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal.
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Affiliation(s)
- Jianying Shen
- Research Center of Neurobiology, Fujian Medical University, Fuzhou 350122, Fujian Province, China
| | - Ling Lin
- Research Center of Neurobiology, Fujian Medical University, Fuzhou 350122, Fujian Province, China
| | - Linghong Liao
- Fujian Key Laboratory of TCM Health State, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, Fujian Province, China
| | - Wenna Liang
- Fujian Key Laboratory of TCM Health State, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, Fujian Province, China
| | - Xiaoting Yang
- Fujian Key Laboratory of TCM Health State, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, Fujian Province, China
| | - Kaimin Lin
- Fujian Key Laboratory of TCM Health State, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, Fujian Province, China
| | - Long Ke
- Fujian Key Laboratory of TCM Health State, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, Fujian Province, China
| | - Lingyuan Zhang
- Fujian Key Laboratory of TCM Health State, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, Fujian Province, China
| | - Jie Kang
- Fujian Key Laboratory of TCM Health State, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, Fujian Province, China
| | - Shanshan Ding
- Fujian Key Laboratory of TCM Health State, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, Fujian Province, China
| | - Candong Li
- Fujian Key Laboratory of TCM Health State, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, Fujian Province, China
| | - Zhihong Zheng
- Research Center of Neurobiology, Fujian Medical University, Fuzhou 350122, Fujian Province, China.
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