1
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Lei H. Effect of Multivoice Chorus on Interpersonal Communication Disorder. Occup Ther Int 2022; 2022:6124778. [PMID: 35854942 PMCID: PMC9288328 DOI: 10.1155/2022/6124778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 06/09/2022] [Indexed: 11/17/2022] Open
Abstract
Objective As a type of music therapy, multipart chorus does not have high requirements for participants, and the basic level can be high or low. For college students, it is more likely to participate. Exploring the effect of multivoice chorus intervention on college students' mental health can provide reference for school psychological correction work. This study uses multivoice chorus as a means, combined with certain group psychological counseling techniques, to try to explore a new model for improving the mental health of college students. Method Fifty college students in prison were selected as subjects and randomly divided into the control group and experimental group. The multivoice chorus method was used to conduct an intervention test on the mental health of the college students in the experimental group, and the observation was carried out for 3 months. Before and after the intervention, the anxiety self-rating scale, the trust scale, the social avoidance and distress scale, the shyness scale, the UCLA loneliness scale, and the college student psychological test personality subtest were used for psychological testing and evaluation. Results/Discussion. College students can actively recognize and reflect on their own behavior, and objectively evaluate others. Through the cognition and management of emotions, college students can handle personal emotions well in interpersonal communication. In the later stage of multivoice chorus, they can help each other, establish a mutual assistance system, help each other, and discuss and learn interpersonal communication skills together, so that college students can learn good interpersonal communication experience and skills from others in various interactions, achieve self-help, and promote college students to work together. In the process of interfering with interpersonal communication disorder, simple psychological counseling has also improved the phenomenon of interpersonal communication disorder, but the experimental effect is far from the effect of the combination of music education and psychological counseling, and it is relatively unstable in the stability test. In the specific operation, in the purely psychological counseling process, college students with interpersonal barriers do not actively cooperate with the intervention, the operating atmosphere is relatively dull, and the teachers are time-consuming and labor-intensive during the psychological counseling process, but the results are minimal. The only effect is also worn out within a few weeks, and the stability is poor. It can be seen that music education has played a pivotal role as a medium in the intervention of interpersonal communication disorders, which can make the intervention process easier, more effective, and more stable.
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Affiliation(s)
- Huiling Lei
- Hunan First Normal University, Changsha City, Hunan Province, China 410205
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2
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Zhu X, Hollinger KR, Huang Y, Borjabad A, Kim BH, Arab T, Thomas AG, Moniruzzaman M, Lovell L, Turchinovich A, Witwer KW, Volsky DJ, Haughey NJ, Slusher BS. Neutral sphingomyelinase 2 inhibition attenuates extracellular vesicle release and improves neurobehavioral deficits in murine HIV. Neurobiol Dis 2022; 169:105734. [PMID: 35462006 PMCID: PMC9202342 DOI: 10.1016/j.nbd.2022.105734] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 03/22/2022] [Accepted: 04/13/2022] [Indexed: 01/11/2023] Open
Abstract
People living with HIV (PLH) have significantly higher rates of cognitive impairment (CI) and major depressive disorder (MDD) versus the general population. The enzyme neutral sphingomyelinase 2 (nSMase2) is involved in the biogenesis of ceramide and extracellular vesicles (EVs), both of which are dysregulated in PLH, CI, and MDD. Here we evaluated EcoHIV-infected mice for behavioral abnormalities relevant to depression and cognition deficits, and assessed the behavioral and biochemical effects of nSMase2 inhibition. Mice were infected with EcoHIV and daily treatment with either vehicle or the nSMase2 inhibitor (R)-(1-(3-(3,4-dimethoxyphenyl)-2,6-dimethylimidazo[1,2-b]pyridazin-8-yl)pyrrolidin-3-yl)-carbamate (PDDC) began 3 weeks post-infection. After 2 weeks of treatment, mice were subjected to behavior tests. EcoHIV-infected mice exhibited behavioral abnormalities relevant to MDD and CI that were reversed by PDDC treatment. EcoHIV infection significantly increased cortical brain nSMase2 activity, resulting in trend changes in sphingomyelin and ceramide levels that were normalized by PDDC treatment. EcoHIV-infected mice also exhibited increased levels of brain-derived EVs and altered microRNA cargo, including miR-183-5p, miR-200c-3p, miR-200b-3p, and miR-429-3p, known to be associated with MDD and CI; all were normalized by PDDC. In conclusion, inhibition of nSMase2 represents a possible new therapeutic strategy for the treatment of HIV-associated CI and MDD.
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Affiliation(s)
- Xiaolei Zhu
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Kristen R. Hollinger
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Yiyao Huang
- Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Alejandra Borjabad
- Department of Medicine, Infectious Diseases Division, Icahn School of Medicine at Mount Sinai, NY, New York, USA
| | - Boe-Hyun Kim
- Department of Medicine, Infectious Diseases Division, Icahn School of Medicine at Mount Sinai, NY, New York, USA
| | - Tanina Arab
- Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ajit G. Thomas
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Mohammed Moniruzzaman
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Lyndah Lovell
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Andrey Turchinovich
- Heidelberg Biolabs GmbH, Heidelberg, Germany,Division of Cancer Genome Research, German Cancer Research Center, Heidelberg, Germany
| | - Kenneth W. Witwer
- Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - David J. Volsky
- Department of Medicine, Infectious Diseases Division, Icahn School of Medicine at Mount Sinai, NY, New York, USA
| | - Norman J. Haughey
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Barbara S. Slusher
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Corresponding author at: 855 N. Wolfe Street, Rangos 278, Baltimore, MD 21205, USA. (B.S. Slusher)
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3
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Schumacher F, Edwards MJ, Mühle C, Carpinteiro A, Wilson GC, Wilker B, Soddemann M, Keitsch S, Scherbaum N, Müller BW, Lang UE, Linnemann C, Kleuser B, Müller CP, Kornhuber J, Gulbins E. Ceramide levels in blood plasma correlate with major depressive disorder severity and its neutralization abrogates depressive behavior in mice. J Biol Chem 2022; 298:102185. [PMID: 35753355 PMCID: PMC9304786 DOI: 10.1016/j.jbc.2022.102185] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 05/11/2022] [Accepted: 06/21/2022] [Indexed: 01/04/2023] Open
Abstract
Major depressive disorder (MDD) is a severe disease of unknown pathogenesis that will affect ∼10% of people during their lifetime. Therapy for MDD requires prolonged treatment and often fails, predicating a need for novel treatment strategies. Here, we report increased ceramide levels in the blood plasma of MDD patients and in murine stress-induced models of MDD. These blood plasma ceramide levels correlated with the severity of MDD in human patients and were independent of age, sex, or body mass index. In addition, intravenous injection of anti-ceramide antibodies or neutral ceramidase rapidly abrogated stress-induced MDD, and intravenous injection of blood plasma from mice with MDD induced depression-like behavior in untreated mice, which was abrogated by ex vivo pre-incubation of the plasma with anti-ceramide antibodies or ceramidase. Mechanistically, we demonstrate that ceramide accumulated in endothelial cells of the hippocampus of stressed mice, evidenced by the quantitative measurement of ceramide in purified hippocampus endothelial cells. We found ceramide inhibited the activity of phospholipase D (PLD) in endothelial cells in vitro and in the hippocampus in vivo and thereby decreased phosphatidic acid in the hippocampus. Finally, we show intravenous injection of PLD or phosphatidic acid abrogated MDD, indicating the significance of this pathway in MDD pathogenesis. Our data indicate that ceramide controls PLD activity and phosphatidic acid formation in hippocampal endothelial cells and thereby mediates MDD. We propose that neutralization of plasma ceramide could represent a rapid-acting targeted treatment for MDD.
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Affiliation(s)
- Fabian Schumacher
- Department of Molecular Biology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany; Freie Universität Berlin, Institute of Pharmacy, Berlin, Germany
| | - Michael J Edwards
- Department of Molecular Biology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Christiane Mühle
- Department of Psychiatry and Psychotherapy, University Clinic, Friedrich-Alexander-University of Erlangen-Nuremberg, Erlangen, Germany
| | - Alexander Carpinteiro
- Department of Molecular Biology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Greg C Wilson
- Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Barbara Wilker
- Department of Molecular Biology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Matthias Soddemann
- Department of Molecular Biology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Simone Keitsch
- Department of Molecular Biology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Norbert Scherbaum
- Faculty of Medicine, Department of Psychiatry and Psychotherapy, LVR-Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Bernhard W Müller
- Faculty of Medicine, Department of Psychiatry and Psychotherapy, LVR-Hospital Essen, University of Duisburg-Essen, Essen, Germany; Department of Psychology, University of Wuppertal, Wuppertal, Germany
| | - Undine E Lang
- Department für Psychiatry and Psychotherapy, University Psychiatric Clinics (UPK), University of Basel, Basel, Switzerland
| | - Christoph Linnemann
- Department für Psychiatry and Psychotherapy, University Psychiatric Clinics (UPK), University of Basel, Basel, Switzerland
| | - Burkhard Kleuser
- Freie Universität Berlin, Institute of Pharmacy, Berlin, Germany
| | - Christian P Müller
- Department of Psychiatry and Psychotherapy, University Clinic, Friedrich-Alexander-University of Erlangen-Nuremberg, Erlangen, Germany; Centre for Drug Research, Universiti Sains Malaysia, Minden, Penang, Malaysia
| | - Johannes Kornhuber
- Department of Psychiatry and Psychotherapy, University Clinic, Friedrich-Alexander-University of Erlangen-Nuremberg, Erlangen, Germany
| | - Erich Gulbins
- Department of Molecular Biology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.
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4
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Ouro A, Correa-Paz C, Maqueda E, Custodia A, Aramburu-Núñez M, Romaus-Sanjurjo D, Posado-Fernández A, Candamo-Lourido M, Alonso-Alonso ML, Hervella P, Iglesias-Rey R, Castillo J, Campos F, Sobrino T. Involvement of Ceramide Metabolism in Cerebral Ischemia. Front Mol Biosci 2022; 9:864618. [PMID: 35531465 PMCID: PMC9067562 DOI: 10.3389/fmolb.2022.864618] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 03/11/2022] [Indexed: 12/12/2022] Open
Abstract
Ischemic stroke, caused by the interruption of blood flow to the brain and subsequent neuronal death, represents one of the main causes of disability in worldwide. Although reperfusion therapies have shown efficacy in a limited number of patients with acute ischemic stroke, neuroprotective drugs and recovery strategies have been widely assessed, but none of them have been successful in clinical practice. Therefore, the search for new therapeutic approaches is still necessary. Sphingolipids consist of a family of lipidic molecules with both structural and cell signaling functions. Regulation of sphingolipid metabolism is crucial for cell fate and homeostasis in the body. Different works have emphasized the implication of its metabolism in different pathologies, such as diabetes, cancer, neurodegeneration, or atherosclerosis. Other studies have shown its implication in the risk of suffering a stroke and its progression. This review will highlight the implications of sphingolipid metabolism enzymes in acute ischemic stroke.
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Affiliation(s)
- Alberto Ouro
- NeuroAging Group (NEURAL), Clinical Neurosciences Research Laboratory (LINC), Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Clara Correa-Paz
- Translational Stroke Laboratory Group (TREAT), Clinical Neurosciences Research Laboratory (LINC), Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Elena Maqueda
- Neuroimaging and Biotechnology Laboratory (NOBEL), Clinical Neurosciences Research Laboratory (LINC), Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Antía Custodia
- NeuroAging Group (NEURAL), Clinical Neurosciences Research Laboratory (LINC), Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Marta Aramburu-Núñez
- NeuroAging Group (NEURAL), Clinical Neurosciences Research Laboratory (LINC), Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Daniel Romaus-Sanjurjo
- NeuroAging Group (NEURAL), Clinical Neurosciences Research Laboratory (LINC), Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Adrián Posado-Fernández
- NeuroAging Group (NEURAL), Clinical Neurosciences Research Laboratory (LINC), Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - María Candamo-Lourido
- Translational Stroke Laboratory Group (TREAT), Clinical Neurosciences Research Laboratory (LINC), Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Maria Luz Alonso-Alonso
- Neuroimaging and Biotechnology Laboratory (NOBEL), Clinical Neurosciences Research Laboratory (LINC), Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Pablo Hervella
- Neuroimaging and Biotechnology Laboratory (NOBEL), Clinical Neurosciences Research Laboratory (LINC), Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Ramón Iglesias-Rey
- Neuroimaging and Biotechnology Laboratory (NOBEL), Clinical Neurosciences Research Laboratory (LINC), Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - José Castillo
- Neuroimaging and Biotechnology Laboratory (NOBEL), Clinical Neurosciences Research Laboratory (LINC), Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Francisco Campos
- Translational Stroke Laboratory Group (TREAT), Clinical Neurosciences Research Laboratory (LINC), Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Tomás Sobrino
- NeuroAging Group (NEURAL), Clinical Neurosciences Research Laboratory (LINC), Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
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5
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Acid sphingomyelinase deactivation post-ischemia promotes brain angiogenesis and remodeling by small extracellular vesicles. Basic Res Cardiol 2022; 117:43. [PMID: 36038749 PMCID: PMC9424180 DOI: 10.1007/s00395-022-00950-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 07/17/2022] [Accepted: 08/08/2022] [Indexed: 01/31/2023]
Abstract
Antidepressants have been reported to enhance stroke recovery independent of the presence of depressive symptoms. They have recently been proposed to exert their mood-stabilizing actions by inhibition of acid sphingomyelinase (ASM), which catalyzes the hydrolysis of sphingomyelin to ceramide. Their restorative action post-ischemia/reperfusion (I/R) still had to be defined. Mice subjected to middle cerebral artery occlusion or cerebral microvascular endothelial cells exposed to oxygen-glucose deprivation were treated with vehicle or with the chemically and pharmacologically distinct antidepressants amitriptyline, fluoxetine or desipramine. Brain ASM activity significantly increased post-I/R, in line with elevated ceramide levels in microvessels. ASM inhibition by amitriptyline reduced ceramide levels, and increased microvascular length and branching point density in wildtype, but not sphingomyelinase phosphodiesterase-1 ([Smpd1]-/-) (i.e., ASM-deficient) mice, as assessed by 3D light sheet microscopy. In cell culture, amitriptyline, fluoxetine, and desipramine increased endothelial tube formation, migration, VEGFR2 abundance and VEGF release. This effect was abolished by Smpd1 knockdown. Mechanistically, the promotion of angiogenesis by ASM inhibitors was mediated by small extracellular vesicles (sEVs) released from endothelial cells, which exhibited enhanced uptake in target cells. Proteomic analysis of sEVs revealed that ASM deactivation differentially regulated proteins implicated in protein export, focal adhesion, and extracellular matrix interaction. In vivo, the increased angiogenesis was accompanied by a profound brain remodeling response with increased blood-brain barrier integrity, reduced leukocyte infiltrates and increased neuronal survival. Antidepressive drugs potently boost angiogenesis in an ASM-dependent way. The release of sEVs by ASM inhibitors disclosed an elegant target, via which brain remodeling post-I/R can be amplified.
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6
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Bhaduri A, Neumann EK, Kriegstein AR, Sweedler JV. Identification of Lipid Heterogeneity and Diversity in the Developing Human Brain. JACS AU 2021; 1:2261-2270. [PMID: 34977897 PMCID: PMC8717369 DOI: 10.1021/jacsau.1c00393] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Indexed: 06/11/2023]
Abstract
The lipidome is currently understudied but fundamental to life. Within the brain, little is known about cell-type lipid heterogeneity, and even less is known about cell-to-cell lipid diversity because it is difficult to study the lipids within individual cells. Here, we used single-cell mass spectrometry-based protocols to profile the lipidomes of 154 910 single cells across ten individuals consisting of five developmental ages and five brain regions, resulting in a unique lipid atlas available via a web browser of the developing human brain. From these data, we identify differentially expressed lipids across brain structures, cortical areas, and developmental ages. We inferred lipid profiles of several major cell types from this data set and additionally detected putative cell-type specific lipids. This data set will enable further interrogation of the developing human brain lipidome.
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Affiliation(s)
- Aparna Bhaduri
- Department
of Neurology, University of California,
San Francisco, San Francisco, California 94143, United States
- The
Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell
Research, University of California, San
Francisco, San Francisco, California 94143, United States
- Department
of Biological Chemistry, University of California,
Los Angeles, Los Angeles, California 90095, United States
| | - Elizabeth K. Neumann
- Department
of Chemistry, University of Illinois at
Urbana−Champaign, Urbana, Illinois 61801, United States
- Beckman
Institute for Advanced Science and Technology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Arnold R. Kriegstein
- Department
of Neurology, University of California,
San Francisco, San Francisco, California 94143, United States
- The
Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell
Research, University of California, San
Francisco, San Francisco, California 94143, United States
| | - Jonathan V. Sweedler
- Department
of Chemistry, University of Illinois at
Urbana−Champaign, Urbana, Illinois 61801, United States
- Beckman
Institute for Advanced Science and Technology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
- Neuroscience
Program, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
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7
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Shutta KH, Balasubramanian R, Huang T, Jha SC, Zeleznik OA, Kroenke CH, Tinker LF, Smoller JW, Casanova R, Tworoger SS, Manson JE, Clish CB, Rexrode KM, Hankinson SE, Kubzansky LD. Plasma metabolomic profiles associated with chronic distress in women. Psychoneuroendocrinology 2021; 133:105420. [PMID: 34597898 PMCID: PMC8547060 DOI: 10.1016/j.psyneuen.2021.105420] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 09/10/2021] [Accepted: 09/12/2021] [Indexed: 11/19/2022]
Abstract
Several forms of chronic distress including anxiety and depression are associated with adverse cardiometabolic outcomes. Metabolic alterations may underlie these associations. Whether these forms of distress are associated with metabolic alterations even after accounting for comorbid conditions and other factors remains unclear. Using an agnostic approach, this study examines a broad range of metabolites in relation to chronic distress among women. For this cross-sectional study of chronic distress and 577 plasma metabolites, data are from different substudies within the Women's Health Initiative (WHI) and Nurses' Health Studies (NHSI, NHSII). Chronic distress was characterized by depressive symptoms and other depression indicators in the WHI and NHSII substudies, and by combined indicators of anxiety and depressive symptoms in the NHSI substudy. We used a two-phase discovery-validation framework, with WHI (N = 1317) and NHSII (N = 218) substudies in the discovery phase (identifying metabolites associated with distress) and NHSI (N = 558) substudy in the validation phase. A differential network analysis provided a systems-level assessment of metabolomic alterations under chronic distress. Analyses adjusted for potential confounders and mediators (demographics, comorbidities, medications, lifestyle factors). In the discovery phase, 46 metabolites were significantly associated with depression measures. In validation, six of these metabolites demonstrated significant associations with chronic distress after adjustment for potential confounders. Among women with high distress, we found lower gamma-aminobutyric acid (GABA), threonine, biliverdin, and serotonin and higher C16:0 ceramide and 3-methylxanthine. Our findings suggest chronic distress is associated with metabolomic alterations and provide specific targets for future study of biological pathways in chronic diseases.
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Affiliation(s)
- Katherine H Shutta
- Department of Biostatistics and Epidemiology, University of Massachusetts Amherst, 010 Arnold House, 715 North Pleasant Street, Amherst, MA 01003, USA.
| | - Raji Balasubramanian
- Department of Biostatistics and Epidemiology, University of Massachusetts Amherst, 010 Arnold House, 715 North Pleasant Street, Amherst, MA 01003, USA.
| | - Tianyi Huang
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA; Harvard Medical School, Boston, MA, USA.
| | - Shaili C Jha
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
| | - Oana A Zeleznik
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA; Harvard Medical School, Boston, MA, USA.
| | - Candyce H Kroenke
- Division of Research, Kaiser Permanente Northern California, Oakland, CA, USA.
| | - Lesley F Tinker
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.
| | - Jordan W Smoller
- Department of Psychiatry and Psychiatric and Neurodevelopmental Genetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA; Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA.
| | | | - Shelley S Tworoger
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Cancer Epidemiology, Moffit Cancer Center, Tampa, FL, USA.
| | - JoAnn E Manson
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA; Harvard Medical School, Boston, MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Division of Preventive Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA.
| | - Clary B Clish
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA, USA.
| | - Kathryn M Rexrode
- Harvard Medical School, Boston, MA, USA; Division of Women's Health, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA.
| | - Susan E Hankinson
- Department of Biostatistics and Epidemiology, University of Massachusetts Amherst, 010 Arnold House, 715 North Pleasant Street, Amherst, MA 01003, USA.
| | - Laura D Kubzansky
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
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8
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Wang M, Yang L, Chen Z, Dai L, Xi C, Wu X, Wu G, Wang Y, Hu J. Geniposide ameliorates chronic unpredictable mild stress induced depression-like behavior through inhibition of ceramide-PP2A signaling via the PI3K/Akt/GSK3β axis. Psychopharmacology (Berl) 2021; 238:2789-2800. [PMID: 34142167 DOI: 10.1007/s00213-021-05895-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 06/07/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Depression is a severe mental disorder. Unfortunately, more than half of patients with major depression disorder cannot achieve remission after initial treatment with an antidepressant. Geniposide, a bioactive iridoid glycoside isolated from Gardenia jasminoides Ellis, can ameliorate depressive-like behaviors in mice. However, the underlying mechanism is still not very clear. METHODS The pharmacological methods including ELISA, immunofluorescence, and Western blot were used to investigate the role of geniposide on chronic unpredictable mild stress (CUMS)-induced depression mice. RESULTS In this study, we found that geniposide could inhibit CUMS-induced depressive-like behaviors in mice. Geniposide is able to reduce the levels of ceramide and lower the activity of acid sphingomyelinase (ASM) in hippocampus; besides, ASM inhibitor (amitriptyline) can decrease the concentration of ceramide and ameliorate depressive-like behaviors of mice. Moreover, geniposide can also alleviate CUMS-induced hippocampal neuronal apoptosis and increase the phosphorylated form of PI3K, Akt, and GSK3β. Additionally, PI3K inhibitor (LY294002) can also abolish the neuroprotective effect of geniposide on hippocampal neurons in vitro. CONCLUSIONS These results indicate that geniposide exert a potential antidepressant-like effect on CUMS mice, and its effect might be associated with activated PI3K/Akt/GSK3β signaling, reduced the level of ceramide and hippocampal neuron apoptosis.
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Affiliation(s)
- Meihua Wang
- Department of Neurosurgery & Neurocritical Care, Huashan Hospital Affiliated To Fudan University, 958 Jinguang Road, Minhang District, Shanghai, 200040, China.,Department of Neurology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 200092, China
| | - Lei Yang
- Department of Neurosurgery & Neurocritical Care, Huashan Hospital Affiliated To Fudan University, 958 Jinguang Road, Minhang District, Shanghai, 200040, China
| | - Zhilin Chen
- Department of Neurology, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, 200081, China
| | - Linlu Dai
- Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
| | - Caihua Xi
- Department of Neurosurgery & Neurocritical Care, Huashan Hospital Affiliated To Fudan University, 958 Jinguang Road, Minhang District, Shanghai, 200040, China
| | - Xing Wu
- Department of Neurosurgery & Neurocritical Care, Huashan Hospital Affiliated To Fudan University, 958 Jinguang Road, Minhang District, Shanghai, 200040, China
| | - Gang Wu
- Department of Neurosurgery & Neurocritical Care, Huashan Hospital Affiliated To Fudan University, 958 Jinguang Road, Minhang District, Shanghai, 200040, China
| | - Yang Wang
- Department of Emergency, Xinhua Hospital Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China.
| | - Jin Hu
- Department of Neurosurgery & Neurocritical Care, Huashan Hospital Affiliated To Fudan University, 958 Jinguang Road, Minhang District, Shanghai, 200040, China.
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Custodia A, Aramburu-Núñez M, Correa-Paz C, Posado-Fernández A, Gómez-Larrauri A, Castillo J, Gómez-Muñoz A, Sobrino T, Ouro A. Ceramide Metabolism and Parkinson's Disease-Therapeutic Targets. Biomolecules 2021; 11:945. [PMID: 34202192 PMCID: PMC8301871 DOI: 10.3390/biom11070945] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 06/22/2021] [Accepted: 06/23/2021] [Indexed: 02/07/2023] Open
Abstract
Ceramide is a bioactive sphingolipid involved in numerous cellular processes. In addition to being the precursor of complex sphingolipids, ceramides can act as second messengers, especially when they are generated at the plasma membrane of cells. Its metabolic dysfunction may lead to or be a consequence of an underlying disease. Recent reports on transcriptomics and electrospray ionization mass spectrometry analysis have demonstrated the variation of specific levels of sphingolipids and enzymes involved in their metabolism in different neurodegenerative diseases. In the present review, we highlight the most relevant discoveries related to ceramide and neurodegeneration, with a special focus on Parkinson's disease.
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Affiliation(s)
- Antía Custodia
- Clinical Neurosciences Research Laboratories, Health Research Institute of Santiago de Compostela (IDIS), Travesa da Choupana s/n, 15706 Santiago de Compostela, Spain; (A.C.); (M.A.-N.); (C.C.-P.); (A.P.-F.); (J.C.)
| | - Marta Aramburu-Núñez
- Clinical Neurosciences Research Laboratories, Health Research Institute of Santiago de Compostela (IDIS), Travesa da Choupana s/n, 15706 Santiago de Compostela, Spain; (A.C.); (M.A.-N.); (C.C.-P.); (A.P.-F.); (J.C.)
| | - Clara Correa-Paz
- Clinical Neurosciences Research Laboratories, Health Research Institute of Santiago de Compostela (IDIS), Travesa da Choupana s/n, 15706 Santiago de Compostela, Spain; (A.C.); (M.A.-N.); (C.C.-P.); (A.P.-F.); (J.C.)
| | - Adrián Posado-Fernández
- Clinical Neurosciences Research Laboratories, Health Research Institute of Santiago de Compostela (IDIS), Travesa da Choupana s/n, 15706 Santiago de Compostela, Spain; (A.C.); (M.A.-N.); (C.C.-P.); (A.P.-F.); (J.C.)
| | - Ana Gómez-Larrauri
- Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, University of the Basque Country, P.O. Box 644, 48980 Bilbao, Spain; (A.G.-L.); (A.G.-M.)
- Respiratory Department, Cruces University Hospital, Barakaldo, 48903 Bizkaia, Spain
| | - José Castillo
- Clinical Neurosciences Research Laboratories, Health Research Institute of Santiago de Compostela (IDIS), Travesa da Choupana s/n, 15706 Santiago de Compostela, Spain; (A.C.); (M.A.-N.); (C.C.-P.); (A.P.-F.); (J.C.)
| | - Antonio Gómez-Muñoz
- Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, University of the Basque Country, P.O. Box 644, 48980 Bilbao, Spain; (A.G.-L.); (A.G.-M.)
| | - Tomás Sobrino
- Clinical Neurosciences Research Laboratories, Health Research Institute of Santiago de Compostela (IDIS), Travesa da Choupana s/n, 15706 Santiago de Compostela, Spain; (A.C.); (M.A.-N.); (C.C.-P.); (A.P.-F.); (J.C.)
| | - Alberto Ouro
- Clinical Neurosciences Research Laboratories, Health Research Institute of Santiago de Compostela (IDIS), Travesa da Choupana s/n, 15706 Santiago de Compostela, Spain; (A.C.); (M.A.-N.); (C.C.-P.); (A.P.-F.); (J.C.)
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PPARD May Play a Protective Role for Major Depressive Disorder. PPAR Res 2021; 2021:5518138. [PMID: 33968145 PMCID: PMC8081621 DOI: 10.1155/2021/5518138] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 03/28/2021] [Accepted: 04/08/2021] [Indexed: 02/05/2023] Open
Abstract
Activation of PPARD has been shown to inhibit depressive behaviors and enhances neurogenesis. However, whether PPARD is involved in the pathological development of major depressive disorder (MDD) is largely unknown. To explore the potential connection between PPARD and MDD, we first conducted a literature-based data mining to construct a PPARD-driven MDD regulating network. Then, we tested the PPARD expression changes in MDD patients from 18 independent MDD RNA expression datasets, followed by coexpression analysis, multiple linear regression analysis, and a heterogeneity analysis to study the influential factors for PPARD expression levels. Our results showed that overexpression of PPARD could inhibit inflammatory cytokine signaling pathways and the ROS and glutamate pathways that have been shown to play important roles in the pathological development of MDD. However, PPARD could also activate nitric oxide formation and ceramide synthesis, which was implicated as promoters in the pathogenesis of MDD, indicating the complexity of the relationship between PPARD and MDD. PPARG presented significant within- and between-study variations in the 18 MDD datasets (p value = 0.97), which were significantly associated with the population region (country) and sample source (p < 2.67e − 5). Our results suggested that PPARD could be a potential regulator rather than a biomarker in the pathological development of MDD. This study may add new insights into the understanding of the PPARD-MDD relationship.
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Hong L, Hongmei W, Leijie X, Dandan Z, Peng L, Zhifei H, Ruimin M, Yijun S, Guanghui Z, Guojun Z. Serum ceramide concentrations are associated with depression in patients after ischemic stroke-A two-center case-controlled study. Clin Chim Acta 2021; 518:110-115. [PMID: 33775701 DOI: 10.1016/j.cca.2021.03.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 03/10/2021] [Accepted: 03/11/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND AND AIMS The present study aims to correlate the severity of post-stroke depression (PSD) and serum ceramide concentration. MATERIALS AND METHODS In this two-center case-control study, we prospectively collected clinical and demographical information from age and gender-matched 51 PSD patients, 56 non-post-stroke depression (Non-PSD) patients, and 39 patients with major depression (MD) to perform the suitable biochemical analysis to bring a correlation in causing depression in patients soon after the stroke. The ROC curve method was used to evaluate ceramide's diagnostic efficacy in all three groups of patients. A follow-up analysis was also conducted based on PSD severity to associate serum ceramide levels and neuropsychiatric symptoms. The severity of the patient's depressive symptoms was assessed by using the self-rating depression scale (SDS). RESULTS In comparison between PSD and MD patients, three serum ceramide species were found to be significantly different. Compared with Non-PSD patients, PSD patients had significantly higher levels of all the four serum ceramides, and increasing levels ofC16:0, C18:0(VS MD) and C16: 0(VS Non-PSD) serve as a diagnostic tool and an independent risk factor in all three categories of patients. Moreover, the follow-up analysis results showed that, as the treatment progressed, the differences in the 3 serum ceramide species were statistically significant. CONCLUSION There was a stage-specific association between serum ceramides and PSD, and the potential pathophysiological mechanism has to be investigated in future research.
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Affiliation(s)
- Lv Hong
- Clinical Diagnosis Department of Beijing Tiantan Hospital & Capital Medical University, China; NMPA Key Laboratory for Quality Control of In Vitro Diagnostics, Fengtai district, Beijing, 100076, China; Beijing Engineering Research Center of Immunological Reagents Clinical Research, Fengtai district, Beijing, 100076, China
| | - Wang Hongmei
- Clinical Diagnosis Department of Beijing Rehabilitation Hospital & Capital Medical University, China
| | - Xie Leijie
- Hangzhou BIOZON Medical Laboratory Co. LTD, Hangzhou, Zhejiang, China
| | - Zou Dandan
- Hangzhou BIOZON Medical Laboratory Co. LTD, Hangzhou, Zhejiang, China
| | - Liu Peng
- Hangzhou BIOZON Medical Laboratory Co. LTD, Hangzhou, Zhejiang, China
| | - Hu Zhifei
- Hangzhou BIOZON Medical Laboratory Co. LTD, Hangzhou, Zhejiang, China
| | - Ma Ruimin
- Clinical Diagnosis Department of Beijing Tiantan Hospital & Capital Medical University, China; NMPA Key Laboratory for Quality Control of In Vitro Diagnostics, Fengtai district, Beijing, 100076, China; Beijing Engineering Research Center of Immunological Reagents Clinical Research, Fengtai district, Beijing, 100076, China
| | - Shi Yijun
- Clinical Diagnosis Department of Beijing Tiantan Hospital & Capital Medical University, China
| | - Zheng Guanghui
- Clinical Diagnosis Department of Beijing Tiantan Hospital & Capital Medical University, China; NMPA Key Laboratory for Quality Control of In Vitro Diagnostics, Fengtai district, Beijing, 100076, China; Beijing Engineering Research Center of Immunological Reagents Clinical Research, Fengtai district, Beijing, 100076, China.
| | - Zhang Guojun
- Clinical Diagnosis Department of Beijing Tiantan Hospital & Capital Medical University, China; NMPA Key Laboratory for Quality Control of In Vitro Diagnostics, Fengtai district, Beijing, 100076, China; Beijing Engineering Research Center of Immunological Reagents Clinical Research, Fengtai district, Beijing, 100076, China.
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12
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Niziolek GM, Hoehn RS, Seitz AP, Jernigan PL, Makley AT, Gulbins E, Edwards MJ, Goodman MD. The Role of Acid Sphingomyelinase Inhibition in Repetitive Mild Traumatic Brain Injury. J Surg Res 2020; 259:296-304. [PMID: 33131764 DOI: 10.1016/j.jss.2020.09.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 09/01/2020] [Accepted: 09/22/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Chronic traumatic encephalopathy is a consequence of repetitive mild traumatic brain injury (rmTBI). These injuries can result in psychiatric disorders that are treated with amitriptyline. Amitriptyline improves neuronal regeneration in major depression via inhibition of acid sphingomyelinase. We hypothesized that acid sphingomyelinase inhibition would preserve neuronal regeneration and decrease depressive symptoms following rmTBI in a murine model. METHODS A murine model of rmTBI was established using a weight-drop method. Mice were subjected to mTBI every other day for 7 d. Mice received amitriptyline injection 2 h prior to each mTBI. After the final mTBI, mice underwent behavioral studies or biochemical analysis. Hippocampi were analyzed for markers of neurogenesis and phosphorylated tau aggregation. RESULTS Mice that underwent rmTBI showed increased hippocampal phosphorylated tau aggregation 1 mo following rmTBI as well as decreased neuronal regeneration by bromodeoxyuridine uptake and doublecortin immunohistochemistry. Mice with either genetic deficiency or pharmacologic inhibition of acid sphingomyelinase demonstrated improved neuronal regeneration and decreased phosphorylated tau aggregation compared to untreated rmTBI mice. Behavioral testing showed rmTBI mice spent significantly more time in the dark and waiting to initiate feeding compared to sham mice. These behaviors were partially prevented by the inhibition of acid sphingomyelinase. CONCLUSIONS We established a murine model of rmTBI that leads to tauopathy, depression, and impaired hippocampal neurogenesis. Inhibition of acid sphingomyelinase prevented the harmful neurologic and behavioral effects of rmTBI. These findings highlight an important opportunity to improve recovery or prevent neuropsychiatric decline in patients at risk for chronic traumatic encephalopathy.
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Affiliation(s)
- Grace M Niziolek
- Department of Surgery, University of Cincinnati, Cincinnati, Ohio
| | - Richard S Hoehn
- Department of Surgery, University of Cincinnati, Cincinnati, Ohio
| | - Aaron P Seitz
- Department of Surgery, University of Cincinnati, Cincinnati, Ohio
| | - Peter L Jernigan
- Department of Surgery, University of Cincinnati, Cincinnati, Ohio
| | - Amy T Makley
- Department of Surgery, University of Cincinnati, Cincinnati, Ohio
| | - Erich Gulbins
- Department of Surgery, University of Cincinnati, Cincinnati, Ohio; Department of Molecular Biology, University of Duisburg-Essen, Essen, Germany
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Abstract
Sphingosine, ceramide, sphingosine-1-phosphate, and other related sphingolipids have emerged as important bioactive molecules involved in a variety of key cellular processes such as cell growth, differentiation, apoptosis, exosome release, and inter- and intracellular cell communication, making the pathways of sphingolipid metabolism a key domain in maintaining cell homeostasis (Hannun and Obeid, Trends Biochem Sci 20:73-77, 1995; Hannun and Obeid, Nat Rev Mol Cell Biol 9:139-150, 2008; Kosaka et al., J Biol Chem 288:10849-10859, 2013). Various studies have determined that these pathways play a central role in regulating intracellular production of ceramide and the other bioactive sphingolipids and hence are an important component of signaling in various diseases such as cancer, diabetes, and neurodegenerative and cardiovascular diseases (Chaube et al., Biochim Biophys Acta 1821:313-323, 2012; Clarke et al., Adv Enzyme Regul 51:51-58, 2011b; Horres and Hannun, Neurochem Res 37:1137-1149, 2012). In this chapter, we discuss one of the major enzyme classes in producing ceramide, sphingomyelinases (SMases), from a biochemical and structural perspective with an emphasis on their applicability as therapeutic targets.
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Affiliation(s)
- Prajna Shanbhogue
- Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY, USA
| | - Yusuf A Hannun
- Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY, USA.
- Stony Brook University Cancer Center, Stony Brook, NY, USA.
- Department of Medicine, Stony Brook University, Stony Brook, NY, USA.
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14
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Ceramide Domains in Health and Disease: A Biophysical Perspective. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1159:79-108. [DOI: 10.1007/978-3-030-21162-2_6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Brunkhorst-Kanaan N, Klatt-Schreiner K, Hackel J, Schröter K, Trautmann S, Hahnefeld L, Wicker S, Reif A, Thomas D, Geisslinger G, Kittel-Schneider S, Tegeder I. Targeted lipidomics reveal derangement of ceramides in major depression and bipolar disorder. Metabolism 2019; 95:65-76. [PMID: 30954559 DOI: 10.1016/j.metabol.2019.04.002] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 03/29/2019] [Accepted: 04/01/2019] [Indexed: 01/06/2023]
Abstract
UNLABELLED Changes of sphingolipid metabolism were suggested to contribute to the patho-etiology of major depression (MD) and bipolar disorder (BD). In a pilot study we assessed if lipid allostasis manifested in pathological plasma concentrations of bioactive lipids i.e. endocannabinoids, sphingolipids, ceramides, and lysophosphatidic acids. METHODS Targeted and untargeted lipidomic analyses were performed according to GLP guidelines in 67 patients with unipolar or bipolar disorders (20-67 years, 36 male, 31 female) and 405 healthy controls (18-79 years, 142 m, 263 f), who were matched according to gender, age and body mass index. Multivariate analyses were used to identify major components, which accounted for the variance between groups and were able to predict group membership. RESULTS Differences between MD and BP patients versus controls mainly originated from ceramides and their hexosyl-metabolites (C16Cer, C18Cer, C20Cer, C22Cer, C24Cer and C24:1Cer; C24:1GluCer, C24LacCer), which were strongly increased, particularly in male patients. Ceramide levels were neither associated with the current episode, nor with the therapeutic improvement of the Montgomery Åsberg Depression Rating Scale (MARDS). However, long-chain ceramides were linearly associated with age, stronger in patients than controls, and with high plasma levels of diacyl- and triacylglycerols. Patients receiving antidepressants had higher ceramide levels than patients not taking these drugs. There was no such association with lithium or antipsychotics except for olanzapine. CONCLUSION Our data suggest that high plasma ceramides in patients with major depression and bipolar disorder are indicative of a high metabolic burden, likely aggravated by certain medications.
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Affiliation(s)
- Nathalie Brunkhorst-Kanaan
- Department of Psychiatry, Psychotherapy and Psychosomatic Medicine, Goethe University Hospital Frankfurt, Frankfurt, Germany
| | | | - Juliane Hackel
- Institute of Clinical Pharmacology, Goethe-University Hospital Frankfurt, Germany
| | - Katrin Schröter
- Department of Psychiatry, Psychotherapy and Psychosomatic Medicine, Goethe University Hospital Frankfurt, Frankfurt, Germany
| | - Sandra Trautmann
- Institute of Clinical Pharmacology, Goethe-University Hospital Frankfurt, Germany
| | - Lisa Hahnefeld
- Institute of Clinical Pharmacology, Goethe-University Hospital Frankfurt, Germany
| | - Sabine Wicker
- Occupational Health Service, Goethe-University Hospital Frankfurt, Germany
| | - Andreas Reif
- Department of Psychiatry, Psychotherapy and Psychosomatic Medicine, Goethe University Hospital Frankfurt, Frankfurt, Germany
| | - Dominique Thomas
- Institute of Clinical Pharmacology, Goethe-University Hospital Frankfurt, Germany
| | - Gerd Geisslinger
- Institute of Clinical Pharmacology, Goethe-University Hospital Frankfurt, Germany; Fraunhofer Institute for Molecular Biology and Applied Ecology, Branch Translational Medicine, Frankfurt, Germany
| | - Sarah Kittel-Schneider
- Department of Psychiatry, Psychotherapy and Psychosomatic Medicine, Goethe University Hospital Frankfurt, Frankfurt, Germany
| | - Irmgard Tegeder
- Institute of Clinical Pharmacology, Goethe-University Hospital Frankfurt, Germany.
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A Resting-State Functional MR Imaging and Spectroscopy Study of the Dorsal Hippocampus in the Chronic Unpredictable Stress Rat Model. J Neurosci 2019; 39:3640-3650. [PMID: 30804096 DOI: 10.1523/jneurosci.2192-18.2019] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 01/21/2019] [Accepted: 01/29/2019] [Indexed: 01/28/2023] Open
Abstract
Exposure to chronic stress leads to an array of anatomical, functional, and metabolic changes in the brain that play a key role in triggering psychiatric disorders such as depression. The hippocampus is particularly well known as a target of maladaptive responses to stress. To capture stress-induced changes in metabolic and functional connectivity in the hippocampus, stress-resistant (low-responders) or -susceptible (high-responders) rats exposed to a chronic unpredictable stress paradigm (categorized according to their hormonal and behavioral responses) were assessed by multimodal neuroimaging; the latter was achieved by using localized 1H MR spectroscopy and resting-state functional MRI (fMRI) at 11,7T data from stressed (n = 25) but also control (n = 15) male Wistar rats.Susceptible animals displayed increased GABA-glutamine (+19%) and glutamate-glutamine (+17%) ratios and decreased levels of macromolecules (-11%); these changes were positively correlated with plasma corticosterone levels. In addition, the neurotransmitter levels showed differential associations with functional connectivity between the hippocampus and the amygdala, the piriform cortex and thalamus between stress-resistant and -susceptible animals. Our observations are consistent with previously reported stress-induced metabolomic changes that suggest overall neurotransmitter dysfunction in the hippocampus. Their association with the fMRI data in this study reveals how local adjustments in neurochemistry relate to changes in the neurocircuitry of the hippocampus, with implications for its stress-associated dysfunctions.SIGNIFICANCE STATEMENT Chronic stress disrupts brain homeostasis, which may increase the vulnerability of susceptible individuals to neuropsychiatric disorders such as depression. Characterization of the differences between stress-resistant and -susceptible individuals on the basis of noninvasive imaging tools, such as magnetic resonance spectroscopy (MRS) and magnetic resonance imaging (MRI), contributes to improved understanding of the mechanisms underpinning individual differences in vulnerability and can facilitate the design of new diagnostic and intervention strategies. Using a combined functional MRI/MRS approach, our results demonstrate that susceptible- and non-susceptible subjects show differential alterations in hippocampal GABA and glutamate metabolism that, in turn, associate with changes in functional connectivity.
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Neutral Sphingomyelinase Behaviour in Hippocampus Neuroinflammation of MPTP-Induced Mouse Model of Parkinson's Disease and in Embryonic Hippocampal Cells. Mediators Inflamm 2017; 2017:2470950. [PMID: 29343884 PMCID: PMC5733979 DOI: 10.1155/2017/2470950] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 09/16/2017] [Accepted: 09/26/2017] [Indexed: 01/31/2023] Open
Abstract
Neutral sphingomyelinase is known to be implicated in growth arrest, differentiation, proliferation, and apoptosis. Although previous studies have reported the involvement of neutral sphingomyelinase in hippocampus physiopathology, its behavior in the hippocampus during Parkinson's disease remains undetected. In this study, we show an upregulation of inducible nitric oxide synthase and a downregulation of neutral sphingomyelinase in the hippocampus of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine- (MPTP-) induced mouse model of Parkinson's disease. Moreover, the stimulation of neutral sphingomyelinase activity with vitamin 1,25-dihydroxyvitamin D3 reduces specifically saturated fatty acid sphingomyelin by making sphingomyelin a less rigid molecule that might influence neurite plasticity. The possible biological relevance of the increase of neutral sphingomyelinase in Parkinson's disease is discussed.
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Rice TC, Pugh AM, Seitz AP, Gulbins E, Nomellini V, Caldwell CC. Sphingosine rescues aged mice from pulmonary pseudomonas infection. J Surg Res 2017; 219:354-359. [PMID: 29078905 DOI: 10.1016/j.jss.2017.06.042] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 04/24/2017] [Accepted: 06/16/2017] [Indexed: 11/25/2022]
Abstract
BACKGROUND Bacterial lung infection is a leading cause of death for those 65 y or older, often requiring intensive care unit admission and mechanical ventilation, which consumes considerable health care resources. Although administration of antibiotics is the standard of care for bacterial pneumonia, its overuse has led to the emergence of multidrug resistant organisms. Therefore, alternative strategies to help minimize the effects of bacterial pneumonia in the elderly are necessary. As studies have shown that sphingosine (SPH) has inherent bacterial killing properties, our goal was to assess whether it could act as a prophylactic treatment to protect aged mice from pulmonary infection by Pseudomonas aeruginosa. METHODS Aged (51 wk) and young (8 wk) C57Bl/6 mice were used in this study. Pulmonary SPH levels were determined by histology. SPH content of microparticles was quantified using a SPH kinase assay. Pneumonia was induced by intranasally treating mice with 106 Colony Forming Unit (CFU) P aeruginosa. Microparticles were isolated from young mice, whereas some were further incubated with SPH. RESULTS We observed that SPH levels are reduced in the bronchial epithelial cells as well as the bronchoalveolar lavage microparticles isolated from aged mice, which correlates with a susceptibility to infection. We demonstrate that SPH or microparticle treatment can protect aged mice from pulmonary P aeruginosa infection. Finally, we observed that enriching microparticles with SPH before treatment eliminated the bacterial load in P aeruginosa-infected aged mice. CONCLUSIONS These data suggest that prophylactic treatment with SPH could reduce lung bacterial infections for the at-risk elderly population.
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Affiliation(s)
- Teresa C Rice
- Division of Research, Department of Surgery, University of Cincinnati, Cincinnati, Ohio
| | - Amanda M Pugh
- Division of Research, Department of Surgery, University of Cincinnati, Cincinnati, Ohio
| | - Aaron P Seitz
- Division of Research, Department of Surgery, University of Cincinnati, Cincinnati, Ohio
| | - Erich Gulbins
- Division of Research, Department of Surgery, University of Cincinnati, Cincinnati, Ohio; Department of Molecular Biology, University of Duisburg-Essen, Essen, Germany
| | - Vanessa Nomellini
- Division of Research, Department of Surgery, University of Cincinnati, Cincinnati, Ohio.
| | - Charles C Caldwell
- Division of Research, Department of Surgery, University of Cincinnati, Cincinnati, Ohio.
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Rice TC, Pugh AM, Xia BT, Seitz AP, Whitacre BE, Gulbins E, Caldwell CC. Bronchoalveolar Lavage Microvesicles Protect Burn-Injured Mice from Pulmonary Infection. J Am Coll Surg 2017; 225:538-547. [PMID: 28690205 DOI: 10.1016/j.jamcollsurg.2017.06.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Revised: 06/23/2017] [Accepted: 06/23/2017] [Indexed: 12/27/2022]
Abstract
BACKGROUND Pseudomonas aeruginosa is a major cause of morbidity and mortality among burn patients, despite antibiotic therapy. There is a need to identify innate immune defenses that prevent P aeruginosa infection in injured adults in an effort to find therapeutic alternatives to antibiotics. Here, we tested our hypothesis that microvesicles (MVs) in bronchoalveolar (BAL) fluid have a role in the immunity of the lung in response to pathogens. STUDY DESIGN Microvesicles were isolated from murine BAL fluid, quantified using Nanoparticle Tracking Analysis, and injected into burn-injured mice before P aeruginosa infection. Survival was assessed and BAL bacterial loads enumerated. Neutrophil number and interleukin 6 activity were determined. Lungs were harvested and sphingosine (SPH) content analyzed via immunohistochemistry. Antimicrobial effects of MVs and SPH-enriched MVs were assessed in an in vitro assay. RESULTS Burn-injured mice have reduced BAL MV number and SPH content compared with sham. When BAL MVs from healthy mice are administered to injured mice, survival and bacterial clearance are improved robustly. We also observed that intranasal administration of MVs restores SPH levels after burn injury, MVs kill bacteria directly, and this bacterial killing is increased when the MVs are supplemented with SPH. CONCLUSIONS Using a preclinical model, BAL MVs are reduced after scald injury and BAL MV restoration to injured mice improves survival and bacterial clearance. The antimicrobial mechanisms leading to improved survival include the quantity and SPH content of BAL MVs.
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Affiliation(s)
- Teresa C Rice
- Division of Research, Department of Surgery, University of Cincinnati, Cincinnati, OH
| | - Amanda M Pugh
- Division of Research, Department of Surgery, University of Cincinnati, Cincinnati, OH
| | - Brent T Xia
- Division of Research, Department of Surgery, University of Cincinnati, Cincinnati, OH
| | - Aaron P Seitz
- Division of Research, Department of Surgery, University of Cincinnati, Cincinnati, OH
| | - Brynne E Whitacre
- Division of Research, Department of Surgery, University of Cincinnati, Cincinnati, OH
| | - Erich Gulbins
- Division of Research, Department of Surgery, University of Cincinnati, Cincinnati, OH; Department of Molecular Biology, University of Duisburg-Essen, Essen, Germany
| | - Charles C Caldwell
- Division of Research, Department of Surgery, University of Cincinnati, Cincinnati, OH.
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Dinoff A, Herrmann N, Lanctôt KL. Ceramides and depression: A systematic review. J Affect Disord 2017; 213:35-43. [PMID: 28189963 DOI: 10.1016/j.jad.2017.02.008] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 01/23/2017] [Accepted: 02/06/2017] [Indexed: 12/14/2022]
Abstract
BACKGROUND Major depressive disorder is a significant contributor to global disability and mortality. The mechanisms of depression are vast and not fully understood, and as a result current treatment of depression is suboptimal. Aberrant sphingolipid metabolism has been observed in some cases of depression, specifically alterations in ceramide concentrations. The role of ceramides and other sphingolipids in depression is a novel concept. This review summarizes and evaluates the current state of evidence for a role of ceramides in depression pathophysiology and the potential for novel depression pharmacotherapies targeting ceramide metabolism. METHODS Medline, Embase, and PsycINFO databases were searched through October 2016 for English-language studies using combinations of the search terms: ceramide, depression, sphingolipid, and depressive symptoms. RESULTS Of the 489 articles screened, 14 were included in the qualitative synthesis of this review article. Pre-clinical and clinical evidence suggest that ceramide species may contribute to depression pathophysiology. In human studies, ceramides C18:0 and C20:0 are the species most strongly linked to depression. Evidence for altered ceramide metabolism in depression is present, but data for a causal role of ceramides in depression are lacking. LIMITATIONS This review was limited by potential reporting bias. Furthermore, a lack of specificity of which ceramides were altered in depression was common. CONCLUSIONS Pharmacotherapy targeting ceramide metabolism may be a novel treatment option for depression. A number of pharmacological targets exists for ceramide reduction and a number of currently approved medications inhibit ceramide production. More evidence, pre-clinical and clinical, is warranted to determine the extent and consistency of the role of ceramides in depression.
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Affiliation(s)
- Adam Dinoff
- Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, Ontario, Canada; Department of Pharmacology and Toxicology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Nathan Herrmann
- Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, Ontario, Canada; Department of Psychiatry, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Krista L Lanctôt
- Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, Ontario, Canada; Department of Pharmacology and Toxicology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Department of Psychiatry, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.
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Mühle C, Kornhuber J. Assay to measure sphingomyelinase and ceramidase activities efficiently and safely. J Chromatogr A 2016; 1481:137-144. [PMID: 28012590 DOI: 10.1016/j.chroma.2016.12.033] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 12/13/2016] [Accepted: 12/13/2016] [Indexed: 10/20/2022]
Abstract
As part of the sphingomyelin pathway, sphingomyelinases and ceramidases have attracted much attention in basic as well as clinical research. However, current assays still often rely on a radioactive substrate, extensive manual purification steps, and hazardous solvents for chromatographic analysis. We here show the equivalence of a fluorescent sphingomyelin substrate and present a new versatile solvent replacing the chloroform/methanol mixture. By further modifications including the omission of the manual extraction steps, chloroform and methanol are eliminated from the entire procedure and render the assay flexible to repeated analyses at multiple time intervals. These improvements allow for the rapid detection of both enzymes in a high throughput microtiter format. Moreover, we demonstrate the relevance of the plastic assay material and the interchangeability between serum and different plasma sources.
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Affiliation(s)
- Christiane Mühle
- Department of Psychiatry and Psychotherapy, Friedrich-Alexander University of Erlangen-Nuremberg (FAU), Schwabachanlage 6, D-91054, Germany.
| | - Johannes Kornhuber
- Department of Psychiatry and Psychotherapy, Friedrich-Alexander University of Erlangen-Nuremberg (FAU), Schwabachanlage 6, D-91054, Germany.
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