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Pietrzak M, Yngve A, Hamilton JP, Asratian A, Gauffin E, Löfberg A, Gustavson S, Persson E, Capusan AJ, Leggio L, Perini I, Tinghög G, Heilig M, Boehme R. Ghrelin decreases sensitivity to negative feedback and increases prediction-error related caudate activity in humans, a randomized controlled trial. Neuropsychopharmacology 2024; 49:1042-1049. [PMID: 38409282 DOI: 10.1038/s41386-024-01821-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 02/01/2024] [Accepted: 02/04/2024] [Indexed: 02/28/2024]
Abstract
The stomach-derived hormone ghrelin plays not only a role in feeding, starvation, and survival, but it has been suggested to also be involved in the stress response, in neuropsychiatric conditions, and in alcohol and drug use disorders. Mechanisms related to reward processing might mediate ghrelin's broader effects on complex behaviors, as indicated by animal studies and mostly correlative human studies. Here, using a within-subject double-blind placebo-controlled design with intravenous ghrelin infusion in healthy volunteers (n = 30), we tested whether ghrelin alters sensitivity to reward and punishment in a reward learning task. Parameters were derived from a computational model of participants' task behavior. The reversal learning task with monetary rewards was performed during functional brain imaging to investigate ghrelin effects on brain signals related to reward prediction errors. Compared to placebo, ghrelin decreased punishment sensitivity (t = -2.448, p = 0.021), while reward sensitivity was unaltered (t = 0.8, p = 0.43). We furthermore found increased prediction-error related activity in the dorsal striatum during ghrelin administration (region of interest analysis: t-values ≥ 4.21, p-values ≤ 0.044). Our results support a role for ghrelin in reward processing that extends beyond food-related rewards. Reduced sensitivity to negative outcomes and increased processing of prediction errors may be beneficial for food foraging when hungry but could also relate to increased risk taking and impulsivity in the broader context of addictive behaviors.
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Affiliation(s)
- Michal Pietrzak
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, 58183, Sweden
- Department of Psychiatry, Linköping University Hospital, Linköping, 58183, Sweden
- Center for Medical Imaging and Visualization, Linköping University, Linköping, 58183, Sweden
| | - Adam Yngve
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, 58183, Sweden
- Center for Medical Imaging and Visualization, Linköping University, Linköping, 58183, Sweden
| | - J Paul Hamilton
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, 58183, Sweden
- Center for Medical Imaging and Visualization, Linköping University, Linköping, 58183, Sweden
- Department of Medical and Biological Psychology, University of Bergen, Bergen, 5007, Norway
| | - Anna Asratian
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, 58183, Sweden
- Center for Medical Imaging and Visualization, Linköping University, Linköping, 58183, Sweden
| | - Emelie Gauffin
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, 58183, Sweden
- Department of Psychiatry, Linköping University Hospital, Linköping, 58183, Sweden
- Center for Medical Imaging and Visualization, Linköping University, Linköping, 58183, Sweden
| | - Andreas Löfberg
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, 58183, Sweden
- Department of Psychiatry, Linköping University Hospital, Linköping, 58183, Sweden
- Center for Medical Imaging and Visualization, Linköping University, Linköping, 58183, Sweden
| | - Sarah Gustavson
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, 58183, Sweden
- Department of Psychiatry, Linköping University Hospital, Linköping, 58183, Sweden
- Center for Medical Imaging and Visualization, Linköping University, Linköping, 58183, Sweden
| | - Emil Persson
- Division of Economics, Department of Management and Engineering, Linköping University, Linköping, 58183, Sweden
| | - Andrea J Capusan
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, 58183, Sweden
- Department of Psychiatry, Linköping University Hospital, Linköping, 58183, Sweden
| | - Lorenzo Leggio
- Section on Clinical Psychoneuroendocrinology and Neuropsychopharmacology, Translational Addiction Medicine Branch, National Institute on Drug Abuse Intramural Research Program and National Institute on Alcohol Abuse and Alcoholism, Division of Intramural Clinical and Biological Research, National Institutes of Health, Baltimore, MD, 21224, USA
| | - Irene Perini
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, 58183, Sweden
- Center for Medical Imaging and Visualization, Linköping University, Linköping, 58183, Sweden
| | - Gustav Tinghög
- Division of Economics, Department of Management and Engineering, Linköping University, Linköping, 58183, Sweden
- National Center for Health Care Priority Setting, Department of Health Medicine and Caring Sciences, Linköping University, 58183, Linköping, Sweden
| | - Markus Heilig
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, 58183, Sweden
- Department of Psychiatry, Linköping University Hospital, Linköping, 58183, Sweden
- Center for Medical Imaging and Visualization, Linköping University, Linköping, 58183, Sweden
| | - Rebecca Boehme
- Center for Social and Affective Neuroscience, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, 58183, Sweden.
- Center for Medical Imaging and Visualization, Linköping University, Linköping, 58183, Sweden.
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Rukavina K, Mulholland N, Corcoran B, Skoric MK, Staunton J, Rota S, Zinzalias P, Wu K, Fieldwalker A, Bannister K, Rizos A, Chaudhuri KR. Musculoskeletal pain in Parkinson's disease: Association with dopaminergic deficiency in the caudate nucleus. Eur J Pain 2024; 28:244-251. [PMID: 37587725 DOI: 10.1002/ejp.2172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 07/09/2023] [Accepted: 08/01/2023] [Indexed: 08/18/2023]
Abstract
BACKGROUND Musculoskeletal (MSK) pain affects over 80% of People with Parkinson's (PD, PwP) and may, in part, be dopaminergic in origin, as dopaminergic medication often leads to its relief. METHODS PwP who underwent striatal dopamine transporter visualization with a radiopharmaceutical DaTscan™ (123 I-Ioflupane Injection) using a single-photon emission computed tomography (SPECT) as a part of their clinical-diagnostic work up were enrolled in the "Non-motor International Longitudinal Study" (NILS; UK National Institute for Health Research Clinical Research Network Number 10084) and included in this cross-sectional analysis. The association between specific DaTscan binding ratios for each striatum, the caudate nucleus and putamen and clinical ratings for MSK pain (assessed using the King's Parkinson's Disease Pain Scale (KPPS)) were analysed. RESULTS 53 PwP (30.2% female; age: 63.79 ± 11.31 years; disease duration (DD): 3.32 (0.31-14.41) years; Hoehn & Yahr stage (H&Y): 2 (1-4); Levodopa Equivalent Daily Dose (LEDD): 543.08 ± 308.94 mg) were assessed and included in this analysis. MSK pain was highly prevalent (71.7% of all participants, mean KPPS Item 1 score 5.34 ± 4.76) and did not correlate with the motor symptoms burden (SCOPA-Motor total score; p = 0.783) but showed a significant correlation with quality of life (PDQ-8, rs = 0.290, p = 0.035). z-scores for the caudate nucleus (Exp (B) = 0.367, 95% CI for Exp (B) 0.148-0.910, p = 0.031) and striatum (Exp (B) = 0.338, 95% CI for Exp (B) 0.123-0.931, p = 0.036), adjusted for DD, H&Y and LEDD, were significant determinants of MSK pain. CONCLUSIONS Our findings suggest an association between MSK pain in PwP and the severity of dopaminergic deficiency in the caudate nucleus. SIGNIFICANCE In People with Parkinson's, musculoskeletal pain does not arise simply as a direct sequel to motor symptoms-instead, it is linked to the severity of dopaminergic depletion in the caudate nucleus.
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Affiliation(s)
- Katarina Rukavina
- Institute of Psychiatry, Psychology & Neuroscience at King's College London, London, UK
- Parkinson's Foundation Centre of Excellence, King's College Hospital NHS Foundation Trust, London, UK
| | - Nicola Mulholland
- Department of Nuclear Medicine, King's College Hospital NHS Foundation Trust, London, UK
| | - Benjamin Corcoran
- Department of Nuclear Medicine, King's College Hospital NHS Foundation Trust, London, UK
| | - Magdalena Krbot Skoric
- Laboratory for Cognitive and Experimental Neurophysiology, Department of Neurology, University Hospital Center Zagreb, Zagreb, Croatia
| | - Juliet Staunton
- Institute of Psychiatry, Psychology & Neuroscience at King's College London, London, UK
- Parkinson's Foundation Centre of Excellence, King's College Hospital NHS Foundation Trust, London, UK
| | - Silvia Rota
- Institute of Psychiatry, Psychology & Neuroscience at King's College London, London, UK
- Parkinson's Foundation Centre of Excellence, King's College Hospital NHS Foundation Trust, London, UK
| | - Pavlos Zinzalias
- Institute of Psychiatry, Psychology & Neuroscience at King's College London, London, UK
- Parkinson's Foundation Centre of Excellence, King's College Hospital NHS Foundation Trust, London, UK
| | - Kit Wu
- Parkinson's Foundation Centre of Excellence, King's College Hospital NHS Foundation Trust, London, UK
| | - Anna Fieldwalker
- Institute of Psychiatry, Psychology & Neuroscience at King's College London, London, UK
| | - Kirsty Bannister
- Institute of Psychiatry, Psychology & Neuroscience at King's College London, London, UK
| | - Alexandra Rizos
- Institute of Psychiatry, Psychology & Neuroscience at King's College London, London, UK
- Parkinson's Foundation Centre of Excellence, King's College Hospital NHS Foundation Trust, London, UK
| | - K Ray Chaudhuri
- Institute of Psychiatry, Psychology & Neuroscience at King's College London, London, UK
- Parkinson's Foundation Centre of Excellence, King's College Hospital NHS Foundation Trust, London, UK
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Lee Y, Byun S, Na SJ. Behavioral Variant Frontotemporal Dementia With the Dominantly Affected Caudate Nucleus in 18 F-FP-CIT PET/CT. Clin Nucl Med 2024; 49:154-156. [PMID: 38049965 DOI: 10.1097/rlu.0000000000004998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
ABSTRACT Frontotemporal dementia is a clinical syndrome that is characterized by a progressive deterioration in behavior, personality, and/or language, with relative preservation of memory, and its phenotype and molecular basis are heterogeneous. We present a case of a 62-year-old female patient who underwent 18 F-FDG PET/CT and 18 F-FP-CIT PET/CT for differential diagnosis of psychiatric disease and types of dementia. 18 F-FDG PET/CT image showed a compatible finding for frontotemporal dementia, and 18 F-FP-CIT PET/CT image showed dominantly decreased dopamine transporter activity in the bilateral caudate nucleus.
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Affiliation(s)
| | - Seonjeong Byun
- Psychiatry, Uijeongbu St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
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Ditzel RM, Walker RH, Nirenberg MJ, Tetlow AM, Farrell K, Lind-Watson KJ, Thorn EL, Dangoor DK, Gordon R, De Sanctis C, Barton B, Karp BI, Kirby A, Lett DJ, Mente K, Simon DK, Velayos-Baeza A, Miltenberger-Miltenyi G, Humphrey J, Crary JF. An Autopsy Series of Seven Cases of VPS13A Disease (Chorea-Acanthocytosis). Mov Disord 2023; 38:2163-2172. [PMID: 37670483 PMCID: PMC10841393 DOI: 10.1002/mds.29589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/29/2023] [Accepted: 08/04/2023] [Indexed: 09/07/2023] Open
Abstract
BACKGROUND Vacuolar protein sorting 13 homolog A (VPS13A) disease, historically known as chorea-acanthocytosis, is a rare neurodegenerative disorder caused by biallelic mutations in VPS13A, usually resulting in reduced or absent levels of its protein product, VPS13A. VPS13A localizes to contact sites between subcellular organelles, consistent with its recently identified role in lipid transfer between membranes. Mutations are associated with neuronal loss in the striatum, most prominently in the caudate nucleus, and associated marked astrogliosis. There are no other known disease-specific cellular changes (eg, protein aggregation), but autopsy reports to date have been limited, often lacking genetic or biochemical diagnostic confirmation. OBJECTIVE The goal of this study was to characterize neuropathological findings in the brains of seven patients with VPS13A disease (chorea-acanthocytosis). METHODS In this study, we collected brain tissues and clinical data from seven cases of VPS13A for neuropathological analysis. The clinical diagnosis was confirmed by the presence of VPS13A mutations and/or immunoblot showing the loss or reduction of VPS13A protein. Tissues underwent routine, special, and immunohistochemical staining focused on neurodegeneration. Electron microscopy was performed in one case. RESULTS Gross examination showed severe striatal atrophy. Microscopically, there was neuronal loss and astrogliosis in affected regions. Luxol fast blue staining showed variable lipid accumulation with diverse morphology, which was further characterized by electron microscopy. In some cases, rare degenerating p62- and ubiquitin-positive cells were present in affected regions. Calcifications were present in four cases, being extensive in one. CONCLUSIONS We present the largest autopsy series of biochemically and genetically confirmed VPS13A disease and identify novel histopathological findings implicating abnormal lipid accumulation. © 2023 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Ricky M. Ditzel
- Department of Pathology, Molecular, and Cell Based Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Artificial Intelligence & Human Health, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Friedman Brain Institute, Ronald M. Loeb Center for Alzheimer’s Disease, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Neuropathology Brain Bank & Research CoRE, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Ruth H. Walker
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- James J. Peters Veterans Affairs Medical Center, Bronx, NY, USA
| | - Melissa J. Nirenberg
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- James J. Peters Veterans Affairs Medical Center, Bronx, NY, USA
| | - Amber M. Tetlow
- Department of Pathology, Molecular, and Cell Based Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Artificial Intelligence & Human Health, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Friedman Brain Institute, Ronald M. Loeb Center for Alzheimer’s Disease, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Neuropathology Brain Bank & Research CoRE, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Kurt Farrell
- Department of Pathology, Molecular, and Cell Based Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Artificial Intelligence & Human Health, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Friedman Brain Institute, Ronald M. Loeb Center for Alzheimer’s Disease, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Neuropathology Brain Bank & Research CoRE, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Kourtni J. Lind-Watson
- Department of Pathology, Molecular, and Cell Based Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Artificial Intelligence & Human Health, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Friedman Brain Institute, Ronald M. Loeb Center for Alzheimer’s Disease, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Neuropathology Brain Bank & Research CoRE, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Emma L. Thorn
- Department of Pathology, Molecular, and Cell Based Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Artificial Intelligence & Human Health, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Friedman Brain Institute, Ronald M. Loeb Center for Alzheimer’s Disease, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Neuropathology Brain Bank & Research CoRE, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Diana K. Dangoor
- Department of Pathology, Molecular, and Cell Based Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Artificial Intelligence & Human Health, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Friedman Brain Institute, Ronald M. Loeb Center for Alzheimer’s Disease, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Neuropathology Brain Bank & Research CoRE, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Ronald Gordon
- Department of Pathology, Molecular, and Cell Based Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Claudia De Sanctis
- Department of Pathology, Molecular, and Cell Based Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Artificial Intelligence & Human Health, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Friedman Brain Institute, Ronald M. Loeb Center for Alzheimer’s Disease, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Neuropathology Brain Bank & Research CoRE, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Brandon Barton
- Rush University Medical Center, Chicago, Illinois, USA
- Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois, USA
| | - Barbara I. Karp
- Human Motor Control Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
| | - Alana Kirby
- Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois, USA
| | - Debra J. Lett
- Newcastle Brain Tissue Resource, Newcastle University, Newcastle, UK
| | - Karin Mente
- Departments of Neurology and Pathology, Case Western Reserve University, Cleveland, OH, USA
- Louis Stokes Cleveland VA Medical Center, Cleveland OH, USA
| | - David K. Simon
- Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Antonio Velayos-Baeza
- Department of Physiology, Anatomy, and Genetics, University of Oxford, UK
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Gabriel Miltenberger-Miltenyi
- Laboratório de Genética, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
- Department of Neurology, Ludwig-Maximilians-Universität München, Munich, Germany
- Reference Center on Lysosomal Storage Diseases, Hospital Senhora da Oliveira, Guimarães, Portugal
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal
| | - Jack Humphrey
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Friedman Brain Institute, Ronald M. Loeb Center for Alzheimer’s Disease, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Genetics and Genomic Sciences & Icahn Institute for Data Science and Genomic Technology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - John F. Crary
- Department of Pathology, Molecular, and Cell Based Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Artificial Intelligence & Human Health, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Friedman Brain Institute, Ronald M. Loeb Center for Alzheimer’s Disease, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Neuropathology Brain Bank & Research CoRE, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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Chen X, Zhang P, Wang L, Zhang Y. Novel heterozygous VPS13A pathogenic variants in chorea-neuroacanthocytosis: a case report. BMC Neurol 2023; 23:350. [PMID: 37794323 PMCID: PMC10548615 DOI: 10.1186/s12883-023-03398-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 09/20/2023] [Indexed: 10/06/2023] Open
Abstract
BACKGROUND Chorea-acanthocytosis (ChAc) is a rare hereditary autosomal recessive neurodegenerative disorder caused by pathogenic variants of the Vacuolar Protein Sorting 13 homolog A (VPS13A) gene. The variant spectrum of VPS13A has not been completely elucidated. This study reports two novel heterozygous VPS13A pathogenic variants in ChAc that expand the variant spectrum of VPS13A. CASE PRESENTATION We described a case of a 29-year-old man with typical clinical manifestations of ChAc, including chorea, orofacial lingual dyskinesia, vocal tics, elevated serum biochemical indicators, increased acanthocytes in peripheral blood, and caudate nucleus atrophy. Next-generation sequencing revealed two heterozygous variants of VPS13A: a nonsense variant (NM_033305.2: c.8215G > T, p. Glu2739Ter) and a deletion variant in the exons 25-31. CONCLUSION The identified nonsense variant gives rise to premature translation termination, while the deletion variant is expected to cause a significant in-frame deletion of amino acid residues in the encoded protein. Both variants are considered to be pathogenic and result in loss-of-function proteins. These findings have implications for the genetic counseling of patients with VPS13A variants.
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Affiliation(s)
- Xi Chen
- Department of Neurology, Guangdong Neuroscience Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, No. 106 Zhongshan Er Road, Guangzhou, 510080, China
- Shantou University Medical College, Shantou, China
- Guangzhou Key Laboratory of Diagnosis and Treatment for Neurodegenerative Diseases, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Guangzhou, 510080, China
| | - Piao Zhang
- Department of Neurology, Guangdong Neuroscience Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, No. 106 Zhongshan Er Road, Guangzhou, 510080, China
- Guangzhou Key Laboratory of Diagnosis and Treatment for Neurodegenerative Diseases, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Guangzhou, 510080, China
| | - Lijuan Wang
- Department of Neurology, Guangdong Neuroscience Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, No. 106 Zhongshan Er Road, Guangzhou, 510080, China
- Guangzhou Key Laboratory of Diagnosis and Treatment for Neurodegenerative Diseases, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Guangzhou, 510080, China
| | - Yuhu Zhang
- Department of Neurology, Guangdong Neuroscience Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, No. 106 Zhongshan Er Road, Guangzhou, 510080, China.
- Guangzhou Key Laboratory of Diagnosis and Treatment for Neurodegenerative Diseases, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Guangzhou, 510080, China.
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Kerstens VS, Fazio P, Sundgren M, Brumberg J, Halldin C, Svenningsson P, Varrone A. Longitudinal DAT changes measured with [ 18F]FE-PE2I PET in patients with Parkinson's disease; a validation study. Neuroimage Clin 2023; 37:103347. [PMID: 36822016 PMCID: PMC9978841 DOI: 10.1016/j.nicl.2023.103347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 02/07/2023] [Accepted: 02/10/2023] [Indexed: 02/13/2023]
Abstract
BACKGROUND Dopamine transporter (DAT) PET provides higher resolution than DAT SPECT and opportunity for integrated imaging with MRI. The radioligand [18F]FE-PE2I is highly selective for the DAT, and PET measurements with this radioligand have good reliability and repeatability in patients with non-advanced Parkinson's disease. OBJECTIVES To validate [18F]FE-PE2I PET as measurement tool of longitudinal DAT changes in patients with Parkinson's disease. METHODS Thirty-seven subjects with Parkinson's disease (Hoehn and Yahr stage < 3) were included in a longitudinal PET study with [18F]FE-PE2I. DAT availability (BPND) in the caudate nucleus, putamen, sensorimotor striatum, and substantia nigra, was estimated with parametric imaging using Logan graphical analysis and cerebellum as reference region. For comparison with DAT-SPECT literature, sample size calculations for disease intervention studies were made. RESULTS Baseline and follow-up PET data (interval: 2.3 ± 0.5 years) were available for 25 patients (9 females, 16 males). Median age was 64.7 years (range 46-76); symptom duration: 3 years (0.25-14); Hoehn and Yahr stage (H&Y): 1 (1-2). Annualized DAT decline and effect size were: -8.5 ± 6.6 % and 1.08 for caudate nucleus; -7.1 ± 6.1 % and 1.02 for putamen; -8.3 ± 8.5 % and 0.99 for sensorimotor striatum; -0.11 ± 9.3 % and 0.11 for substantia nigra. The estimated minimum sample size needed for a treatment trial using [18F]FE-PE2I PET as imaging marker is 2-3 times lower than is reported in literature on [123I]FP-CIT SPECT. CONCLUSIONS Longitudinal [18F]FE-PE2I PET measurements in non-advanced PD demonstrate a striatal DAT decline consistent with previous SPECT and PET studies. No obvious changes of DAT availability were observed in the substantia nigra, indicating perhaps slower progression or compensatory changes. The effect sizes were numerically larger than reported in the literature for other DAT radioligands, suggesting that [18F]FE-PE2I might detect smaller DAT changes, and can be well used as progression marker in clinical trials.
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Affiliation(s)
- V S Kerstens
- Department of Clinical Neuroscience, Centre for Psychiatry Research, Karolinska Institutet and Stockholm Health Care Services, Stockholm, Sweden.
| | - P Fazio
- Department of Clinical Neuroscience, Centre for Psychiatry Research, Karolinska Institutet and Stockholm Health Care Services, Stockholm, Sweden
| | - M Sundgren
- Karolinska University Hospital, Neuro Department, Stockholm, Sweden
| | - J Brumberg
- Department of Clinical Neuroscience, Centre for Psychiatry Research, Karolinska Institutet and Stockholm Health Care Services, Stockholm, Sweden
| | - C Halldin
- Department of Clinical Neuroscience, Centre for Psychiatry Research, Karolinska Institutet and Stockholm Health Care Services, Stockholm, Sweden
| | - P Svenningsson
- Karolinska University Hospital, Neuro Department, Stockholm, Sweden
| | - A Varrone
- Department of Clinical Neuroscience, Centre for Psychiatry Research, Karolinska Institutet and Stockholm Health Care Services, Stockholm, Sweden
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Alsini H, Alnozha A, Asmat Z, Hundallah K, Alfadhel M, Tabarki B. Beyond the caudate nucleus: Early atypical neuroimaging findings in biotin-thiamine- responsive basal ganglia disease. Brain Dev 2022; 44:618-622. [PMID: 35811190 DOI: 10.1016/j.braindev.2022.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 06/24/2022] [Accepted: 06/27/2022] [Indexed: 11/19/2022]
Abstract
BACKGROUND Biotin-thiamine-responsive basal ganglia disease (BTBGD) is a treatable neurometabolic disease caused by variants in SLC19A3. Typical imaging features include symmetrical involvement of the caudate nuclei and putamina. OBJECTIVE The study sought to explore classical BTBGD without caudate nucleus involvement, to highlight the importance of recognizing this new pattern early in the disease. METHODS Individuals with genetically confirmed BTBGD who harbored the same homozygous variant: NM_025243.4 (SLC19A3): c.1264A > G (p.Thr422Ala) and had atypical neuroimaging were recruited. RESULTS Nine patients with BTBGD had atypical neuroimaging findings on the first MRI scan. The median age at symptom onset was 3 years. All patients presented with classical clinical features of subacute encephalopathy, dystonia, ataxia, and seizures. During the acute crisis, MRI revealed bilateral and symmetric involvement of the putamina in all patients; one showed small caudate nuclei involvement. In addition, the thalami, cerebellum, and brain stem were involved in six patients, seven patients, and three patients, respectively. Treatment included a combination of high doses of thiamine and biotin. One patient died; he did not receive any vitamin supplementation. Two patients who were treated late had severe neurological sequelae, including generalized dystonia and quadriplegia. Six patients treated early had good outcomes with minimal sequelae, including mild dystonia and dysarthria. Two patients showed the classical chronic atrophic and necrotic changes already described. CONCLUSION The early atypical neuroimaging pattern of BTBGD described here, particularly the lack of caudate nucleus involvement, should not dissuade the clinician and radiologist from considering a diagnosis of BTBGD.
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Affiliation(s)
- Hanin Alsini
- Division of Pediatric Neurology, Department of Pediatrics, Prince Sultan Military Medical City, Riyadh, Saudi Arabia.
| | - Aisha Alnozha
- Department of Pediatrics, Children Hospital, AL-Madinah Al-Munawarah, Saudi Arabia
| | - Zeeshan Asmat
- Division of Neuroradiology, Department of Radiology, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Khalid Hundallah
- Division of Pediatric Neurology, Department of Pediatrics, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Majid Alfadhel
- Medical Genomics Research Department, King Abdullah International Medical Research Center, Ministry of National Guard Health Affairs (MNG-HA), Riyadh, Saudi Arabia; King Saud Bin Abdulaziz University for Health Sciences (KSAU-HS), Ministry of National Guard Health Affairs (MNG-HA), Riyadh, Saudi Arabia; Genetics and Precision Medicine Department (GPM), King Abdullah Specialized Children's Hospital (KASCH), King Abdulaziz Medical City, Ministry of National Guard Health Affairs (MNG-HA), Riyadh, Saudi Arabia
| | - Brahim Tabarki
- Division of Pediatric Neurology, Department of Pediatrics, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
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Gann MA, King BR, Dolfen N, Veldman MP, Chan KL, Puts NAJ, Edden RAE, Davare M, Swinnen SP, Mantini D, Robertson EM, Albouy G. Hippocampal and striatal responses during motor learning are modulated by prefrontal cortex stimulation. Neuroimage 2021; 237:118158. [PMID: 33991699 PMCID: PMC8351752 DOI: 10.1016/j.neuroimage.2021.118158] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 04/16/2021] [Accepted: 05/05/2021] [Indexed: 02/06/2023] Open
Abstract
While it is widely accepted that motor sequence learning (MSL) is supported by a prefrontal-mediated interaction between hippocampal and striatal networks, it remains unknown whether the functional responses of these networks can be modulated in humans with targeted experimental interventions. The present proof-of-concept study employed a multimodal neuroimaging approach, including functional magnetic resonance (MR) imaging and MR spectroscopy, to investigate whether individually-tailored theta-burst stimulation of the dorsolateral prefrontal cortex can modulate responses in the hippocampus and the basal ganglia during motor learning. Our results indicate that while stimulation did not modulate motor performance nor task-related brain activity, it influenced connectivity patterns within hippocampo-frontal and striatal networks. Stimulation also altered the relationship between the levels of gamma-aminobutyric acid (GABA) in the stimulated prefrontal cortex and learning-related changes in both activity and connectivity in fronto-striato-hippocampal networks. This study provides the first experimental evidence, to the best of our knowledge, that brain stimulation can alter motor learning-related functional responses in the striatum and hippocampus.
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Affiliation(s)
- Mareike A Gann
- Department of Movement Sciences, Movement Control and Neuroplasticity Research Group, KU Leuven, 3001 Leuven, Belgium; LBI - KU Leuven Brain Institute, KU Leuven, 3001 Leuven, Belgium
| | - Bradley R King
- Department of Movement Sciences, Movement Control and Neuroplasticity Research Group, KU Leuven, 3001 Leuven, Belgium; LBI - KU Leuven Brain Institute, KU Leuven, 3001 Leuven, Belgium
| | - Nina Dolfen
- Department of Movement Sciences, Movement Control and Neuroplasticity Research Group, KU Leuven, 3001 Leuven, Belgium; LBI - KU Leuven Brain Institute, KU Leuven, 3001 Leuven, Belgium
| | - Menno P Veldman
- Department of Movement Sciences, Movement Control and Neuroplasticity Research Group, KU Leuven, 3001 Leuven, Belgium; LBI - KU Leuven Brain Institute, KU Leuven, 3001 Leuven, Belgium
| | - Kimberly L Chan
- Advanced Imaging Research Center, University of Texas Southwestern, Dallas, TX 75390, USA
| | - Nicolaas A J Puts
- The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA; F. M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, MD 21205, USA; Department of Forensic and Neurodevelopmental Sciences and the Institute of Psychiatry, Psychology, and Neuroscience; King's College London, SE5 8AF London, United Kingdom
| | - Richard A E Edden
- The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA; F. M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, MD 21205, USA
| | - Marco Davare
- Department of Clinical Sciences, College of Health and Life Sciences, Brunel University London, UB8 3PN Uxbridge, United Kingdom
| | - Stephan P Swinnen
- Department of Movement Sciences, Movement Control and Neuroplasticity Research Group, KU Leuven, 3001 Leuven, Belgium; LBI - KU Leuven Brain Institute, KU Leuven, 3001 Leuven, Belgium
| | - Dante Mantini
- Department of Movement Sciences, Movement Control and Neuroplasticity Research Group, KU Leuven, 3001 Leuven, Belgium; Brain Imaging and Neural Dynamics Research Group, IRCCS San Camillo Hospital, 30126 Venice, Italy
| | - Edwin M Robertson
- Institute of Neuroscience and Psychology, University of Glasgow, G12 8QB Glasgow, United Kingdom
| | - Geneviève Albouy
- Department of Movement Sciences, Movement Control and Neuroplasticity Research Group, KU Leuven, 3001 Leuven, Belgium; LBI - KU Leuven Brain Institute, KU Leuven, 3001 Leuven, Belgium.
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Kar P, Millo T, Saha S, Mahtab S, Agarwal S, Goswami R. Osteogenic Mechanisms of Basal Ganglia Calcification and its ex vivo Model in the Hypoparathyroid Milieu. Endocrinology 2021; 162:6128830. [PMID: 33539507 DOI: 10.1210/endocr/bqab024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Indexed: 01/10/2023]
Abstract
CONTEXT Basal-ganglia calcification (BGC) is common (70%) in patients with chronic hypoparathyroidism. Interestingly, cortical gray matter is spared from calcification. The mechanism of BGC, role of hyperphosphatemia, and modulation of osteogenic molecules by parathyroid hormone (PTH) in its pathogenesis is not clear. OBJECTIVE We assessed the expression of a large repertoire of molecules with proosteogenic or antiosteogenic effects, including neuroprogenitor cells in caudate, dentate, and cortical gray matter from normal autopsy tissues. The effect of high phosphate and PTH was assessed in an ex vivo model of BGC using striatum tissue culture of the Sprague-Dawley rat. METHODS The messenger RNA and protein expression of 39 molecules involved in multiple osteogenic pathways were assessed in 25 autopsy tissues using reverse-transcriptase polymerase chain reaction, Western blot, and immunofluorescence. The striatal culture was maintained in a hypoparathyroid milieu for 24 days with and without (a) high phosphate (10-mm β-glycerophosphate) and (b) PTH(1-34) (50 ng/mL Dulbecco's modified Eagle's medium-F12 media) for their effect on striatal calcification and osteogenic molecules. RESULTS Procalcification molecules (osteonectin, β-catenin, klotho, FZD4, NT5E, LRP5, WNT3A, collagen-1α, and SOX2-positive neuroprogenitor stem cells) had significantly higher expression in the caudate than gray matter. Caudate nuclei also had higher expression of antiosteogenic molecules (osteopontin, carbonic anhydrase-II [CA-II], MGP, sclerostin, ISG15, ENPP1, and USP18). In an ex vivo model, striatum culture showed an increased propensity for calcified nodules with mineral deposition similar to that of bone tissue on Fourier-transformed infrared spectroscopy, alizarin, and von Kossa stain. Mineralization in striatal culture was enhanced by high phosphate and decreased by exogenous PTH through increased expression of CA-II. CONCLUSION This study provides a conceptual advance on the molecular mechanisms of BGC and the possibility of PTH therapy to prevent this complication in a hypoparathyroid milieu.
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Affiliation(s)
- Parmita Kar
- Department of Endocrinology and Metabolism, All India Institute of Medical Sciences, New Delhi, Delhi, India
| | - Tabin Millo
- Department of Forensic Medicine and Toxicology, New Delhi, Delhi, India
| | - Soma Saha
- Department of Endocrinology and Metabolism, All India Institute of Medical Sciences, New Delhi, Delhi, India
| | - Samrina Mahtab
- Department of Endocrinology and Metabolism, All India Institute of Medical Sciences, New Delhi, Delhi, India
| | - Shipra Agarwal
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, Delhi, India
| | - Ravinder Goswami
- Department of Endocrinology and Metabolism, All India Institute of Medical Sciences, New Delhi, Delhi, India
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Arnaldi D, Chincarini A, Hu MT, Sonka K, Boeve B, Miyamoto T, Puligheddu M, De Cock VC, Terzaghi M, Plazzi G, Tachibana N, Morbelli S, Rolinski M, Dusek P, Lowe V, Miyamoto M, Figorilli M, de Verbizier D, Bossert I, Antelmi E, Meli R, Barber TR, Trnka J, Miyagawa T, Serra A, Pizza F, Bauckneht M, Bradley KM, Zogala D, McGowan DR, Jordan L, Manni R, Nobili F. Dopaminergic imaging and clinical predictors for phenoconversion of REM sleep behaviour disorder. Brain 2021; 144:278-287. [PMID: 33348363 PMCID: PMC8599912 DOI: 10.1093/brain/awaa365] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 08/01/2020] [Accepted: 08/13/2020] [Indexed: 11/15/2022] Open
Abstract
This is an international multicentre study aimed at evaluating the combined value of dopaminergic neuroimaging and clinical features in predicting future phenoconversion of idiopathic REM sleep behaviour (iRBD) subjects to overt synucleinopathy. Nine centres sent 123I-FP-CIT-SPECT data of 344 iRBD patients and 256 controls for centralized analysis. 123I-FP-CIT-SPECT images were semiquantified using DaTQUANTTM, obtaining putamen and caudate specific to non-displaceable binding ratios (SBRs). The following clinical variables were also analysed: (i) Movement Disorder Society-sponsored revision of the Unified Parkinson's Disease Rating Scale, motor section score; (ii) Mini-Mental State Examination score; (iii) constipation; and (iv) hyposmia. Kaplan-Meier survival analysis was performed to estimate conversion risk. Hazard ratios for each variable were calculated with Cox regression. A generalized logistic regression model was applied to identify the best combination of risk factors. Bayesian classifier was used to identify the baseline features predicting phenoconversion to parkinsonism or dementia. After quality check of the data, 263 iRBD patients (67.6 ± 7.3 years, 229 males) and 243 control subjects (67.2 ± 10.1 years, 110 males) were analysed. Fifty-two (20%) patients developed a synucleinopathy after average follow-up of 2 years. The best combination of risk factors was putamen dopaminergic dysfunction of the most affected hemisphere on imaging, defined as the lower value between either putamina (P < 0.000001), constipation, (P < 0.000001) and age over 70 years (P = 0.0002). Combined features obtained from the generalized logistic regression achieved a hazard ratio of 5.71 (95% confidence interval 2.85-11.43). Bayesian classifier suggested that patients with higher Mini-Mental State Examination score and lower caudate SBR asymmetry were more likely to develop parkinsonism, while patients with the opposite pattern were more likely to develop dementia. This study shows that iRBD patients older than 70 with constipation and reduced nigro-putaminal dopaminergic function are at high risk of short-term phenoconversion to an overt synucleinopathy, providing an effective stratification approach for future neuroprotective trials. Moreover, we provide cut-off values for the significant predictors of phenoconversion to be used in single subjects.
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Affiliation(s)
- Dario Arnaldi
- Clinical Neurology, Department of Neuroscience (DINOGMI), University of Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Andrea Chincarini
- National Institute of Nuclear Physics (INFN), Genoa section, Genoa, Italy
| | - Michele T Hu
- Oxford Parkinson’s Disease Centre, Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Karel Sonka
- Department of Neurology and Centre of Clinical Neuroscience, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Bradley Boeve
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA
| | - Tomoyuki Miyamoto
- Department of Neurology, Dokkyo Medical University Saitama Medical Centre, Saitama, Japan
| | - Monica Puligheddu
- Sleep Disorder Centre, Department of Medical Sciences and Public Health, University of Cagliari, Italy
| | - Valérie Cochen De Cock
- Department of Sleep and Neurology, Beau Soleil Clinic, and EuroMov Digital Health in Motion, University of Montpellier, Montpellier, France
| | - Michele Terzaghi
- Unit of Sleep Medicine and Epilepsy, IRCCS Mondino Foundation, Pavia, Italy
- Department of Brain and Behavioural Sciences, University of Pavia, Pavia, Italy
| | - Giuseppe Plazzi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
- IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy
| | - Naoko Tachibana
- Division of Sleep Medicine, Kansai Electric Power Medical Research Institute, Osaka, Japan
| | - Silvia Morbelli
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Nuclear Medicine, Department of Health Sciences (DISSAL), University of Genoa, Italy
| | - Michal Rolinski
- Oxford Parkinson’s Disease Centre, Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital, Oxford, UK
- Institute of Clinical Neurosciences, University of Bristol, Bristol, UK
| | - Petr Dusek
- Department of Neurology and Centre of Clinical Neuroscience, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Val Lowe
- Department of Nuclear Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Masayuki Miyamoto
- Centre of Sleep Medicine, Dokkyo Medical University Hospital, Tochigi, Japan
| | - Michela Figorilli
- Sleep Disorder Centre, Department of Medical Sciences and Public Health, University of Cagliari, Italy
| | | | - Irene Bossert
- Nuclear Medicine Unit, ICS Maugeri SpA SB IRCCS, Pavia, Italy
| | - Elena Antelmi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
- Neurology Unit, Movement Disorders Division, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Riccardo Meli
- Clinical Neurology, Department of Neuroscience (DINOGMI), University of Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Thomas R Barber
- Oxford Parkinson’s Disease Centre, Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Jiří Trnka
- Institute of Nuclear Medicine, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Toji Miyagawa
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA
| | - Alessandra Serra
- Nuclear Medicine Unit, Department of Medical Science and Public Health, University of Cagliari, Cagliari, Italy
| | - Fabio Pizza
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
- IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy
| | - Matteo Bauckneht
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Nuclear Medicine, Department of Health Sciences (DISSAL), University of Genoa, Italy
| | | | - David Zogala
- Institute of Nuclear Medicine, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Daniel R McGowan
- Radiation Physics and Protection Department, Churchill Hospital, Oxford, UK
| | - Lennon Jordan
- Department of Nuclear Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Raffaele Manni
- Unit of Sleep Medicine and Epilepsy, IRCCS Mondino Foundation, Pavia, Italy
| | - Flavio Nobili
- Clinical Neurology, Department of Neuroscience (DINOGMI), University of Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
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Huijgens PT, Snoeren EMS, Meisel RL, Mermelstein PG. Effects of gonadectomy and dihydrotestosterone on neuronal plasticity in motivation and reward related brain regions in the male rat. J Neuroendocrinol 2021; 33:e12918. [PMID: 33340384 DOI: 10.1111/jne.12918] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 09/25/2020] [Accepted: 11/02/2020] [Indexed: 12/22/2022]
Abstract
Gonadal hormones affect neuronal morphology to ultimately regulate behaviour. In female rats, oestradiol mediates spine plasticity in hypothalamic and limbic brain structures, contributing to long-lasting effects on motivated behaviour. Parallel effects of androgens in male rats have not been extensively studied. Here, we investigated the effect of both castration and androgen replacement on spine plasticity in the nucleus accumbens shell and core (NAcSh and NAcC), caudate putamen (CPu), medial amygdala (MeA) and medial preoptic nucleus (MPN). Intact and castrated (gonadectomy [GDX]) male rats were treated with dihydrotestosterone (DHT, 1.5 mg) or vehicle (oil) in three experimental groups: intact-oil, GDX-oil and GDX-DHT. Spine density and morphology, measured 24 hours after injection, were determined through three-dimensional reconstruction of confocal z-stacks of DiI-labelled dendritic segments. We found that GDX decreased spine density in the MPN, which was rescued by DHT treatment. DHT also increased spine density in the MeA in GDX animals compared to intact oil-treated animals. By contrast, DHT decreased spine density in the NAcSh compared to GDX males. No effect on spine density was observed in the NAcC or CPu. Spine length and spine head diameter were unaffected by GDX and DHT in the investigated brain regions. In addition, immunohistochemistry revealed that DHT treatment of GDX animals rapidly increased the number of cell bodies in the NAcSh positive for phosphorylated cAMP response-element binding protein, a downstream messenger of the androgen receptor. These findings indicate that androgen signalling plays a role in the regulation of spine plasticity within neurocircuits involved in motivated behaviours.
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Affiliation(s)
- Patty T Huijgens
- Department of Neuroscience, University of Minnesota, Minneapolis, MN, USA
- Department of Psychology, UiT The Arctic University of Norway, Tromsø, Norway
| | - Eelke M S Snoeren
- Department of Psychology, UiT The Arctic University of Norway, Tromsø, Norway
| | - Robert L Meisel
- Department of Neuroscience, University of Minnesota, Minneapolis, MN, USA
| | - Paul G Mermelstein
- Department of Neuroscience, University of Minnesota, Minneapolis, MN, USA
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Xu W, Li H, Wang L, Zhang J, Liu C, Wan X, Liu X, Hu Y, Fang Q, Xiao Y, Bu Q, Wang H, Tian J, Zhao Y, Cen X. Endocannabinoid signaling regulates the reinforcing and psychostimulant effects of ketamine in mice. Nat Commun 2020; 11:5962. [PMID: 33235205 PMCID: PMC7686380 DOI: 10.1038/s41467-020-19780-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 10/27/2020] [Indexed: 02/05/2023] Open
Abstract
The abuse potential of ketamine limits its clinical application, but the precise mechanism remains largely unclear. Here we discovered that ketamine significantly remodels the endocannabinoid-related lipidome and activates 2-arachidonoylglycerol (2-AG) signaling in the dorsal striatum (caudate nucleus and putamen, CPu) of mice. Elevated 2-AG in the CPu is essential for the psychostimulant and reinforcing effects of ketamine, whereas blockade of the cannabinoid CB1 receptor, a predominant 2-AG receptor, attenuates ketamine-induced remodeling of neuronal dendrite structure and neurobehaviors. Ketamine represses the transcription of the monoacylglycerol lipase (MAGL) gene by promoting the expression of PRDM5, a negative transcription factor of the MAGL gene, leading to increased 2-AG production. Genetic overexpression of MAGL or silencing of PRDM5 expression in the CPu robustly reduces 2-AG production and ketamine effects. Collectively, endocannabinoid signaling plays a critical role in mediating the psychostimulant and reinforcing properties of ketamine.
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Affiliation(s)
- Wei Xu
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, People's Republic of China
| | - Hongchun Li
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, People's Republic of China
| | - Liang Wang
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, People's Republic of China
| | - Jiamei Zhang
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, People's Republic of China
| | - Chunqi Liu
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, People's Republic of China
| | - Xuemei Wan
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, People's Republic of China
| | - Xiaochong Liu
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, People's Republic of China
| | - Yiming Hu
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, People's Republic of China
| | - Qiyao Fang
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, People's Republic of China
| | - Yuanyuan Xiao
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, People's Republic of China
| | - Qian Bu
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, People's Republic of China
| | - Hongbo Wang
- Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, 264005, Yantai, People's Republic of China
| | - Jingwei Tian
- Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, 264005, Yantai, People's Republic of China
| | - Yinglan Zhao
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, People's Republic of China
| | - Xiaobo Cen
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, People's Republic of China.
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Kim YE, Kim YJ, Hwang HS, Ma HI. REM sleep behavior disorder in early Parkinson's disease predicts the rapid dopaminergic denervation. Parkinsonism Relat Disord 2020; 80:120-126. [PMID: 32987358 DOI: 10.1016/j.parkreldis.2020.09.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 09/16/2020] [Accepted: 09/20/2020] [Indexed: 12/30/2022]
Abstract
OBJECTIVE To test the hypothesis that REM sleep behavior disorder (RBD) in early Parkinson's disease (PD) predicts rapid progression of dopaminergic denervation. METHODS 123I-FP-CIT single photon emission computed tomography (SPECT) scans were performed sequentially at baseline, 1 year, 2 years, and 4 years in 416 de novo patients with PD. RBD screening questionnaire scores >5 at baseline placed the participant in the likely-RBD group. Temporal changes in the specific binding ratio (SBR; caudate, putamen. sum of both, striatum) were compared between the likely-RBD and the non-likely-RBD groups for more or less affected striatum with a repeated measure ANOVA. RESULTS Likely-RBD was reported in 37.7% of the drug-naïve PD patients at baseline. The likely-RBD and non-likely-RBD groups did not have significant differences in the baseline clinical features including gender, age, disease duration, UPDRS motor score, and striatal SBR. Striatal SBR decreased significantly over four years in both groups (P < .001). In the analysis of a more affected striatum, striatal SBR decreased significantly faster in the likely-RBD group than in the non-likely-RBD group (P < .05 for all), whereas it was not statistically significant for the less affected striatum. The mean striatal SBR value (mean value of both striata), especially the caudate SBR, indicated greater acceleration of denervation in the likely-RBD group than in the non-likely-RBD group over time (P < .05). CONCLUSION Likely-RBD in PD predicts accelerating dopaminergic denervation, thereby implicating it as a marker for a poor prognosis or distinctive subtype in PD.
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Affiliation(s)
- Young Eun Kim
- Department of Neurology, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, South Korea; Hallym Neurological Institute, Hallym University, South Korea
| | - Yun Joong Kim
- Department of Neurology, Yongin Yonsei University Hospital, Yonsei University, South Korea
| | - Hee Sung Hwang
- Department of Nuclear Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, South Korea.
| | - Hyeo-Il Ma
- Department of Neurology, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, South Korea; Hallym Neurological Institute, Hallym University, South Korea.
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Jia X, Pan Z, Chen H, Wang Z, Li K, Wang X, Wang Z, Ma H, Feng T, Yang Q. Differential functional dysconnectivity of caudate nucleus subdivisions in Parkinson's disease. Aging (Albany NY) 2020; 12:16183-16194. [PMID: 32687066 PMCID: PMC7485745 DOI: 10.18632/aging.103628] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 06/18/2020] [Indexed: 04/21/2023]
Abstract
Caudate dopaminergic dysfunction is implied in the pathophysiology of patients with Parkinson's disease (PD). Still, connectivity specificities of the caudate nucleus (CN) subdivisions and the effect of dopamine are poorly understood. We collected MRI and neuropsychological data from 34 PD patients and 26 age- and sex-matched healthy elderly individuals (HEs) in this study. Resting-state functional connectivity analysis revealed that compared to the other CN subdivisions, the CN head was more strongly connected to the default mode network (DMN), the CN body to the frontoparietal network (FPN), and the CN tail to the visual network in HEs. PD patients off medication showed reduced connectivity within all these subdivision networks. In PD patients on medication, functional connectivity in the CN head network was significantly improved in the medial prefrontal cortex and in the body network it was improved in the dorsolateral prefrontal cortex. These improvements contributed to ameliorated motivation and cognitive function in PD patients. Our results highlighted the specific alterations and dopamine modulation in these CN subdivision networks in PD, which may provide insight into the pathophysiology and therapeutics of this disease.
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Affiliation(s)
- Xiuqin Jia
- Department of Radiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
- Equal contribution
| | - Zhenyu Pan
- Department of Radiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
- Equal contribution
| | - Huimin Chen
- Department of Movement Disorders, Center for Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
- Parkinson's Disease Center, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
- Equal contribution
| | - Zhijiang Wang
- Peking University Sixth Hospital (Institute of Mental Health), Beijing, China
- NHC Key Laboratory of Mental Health (Peking University), Beijing, China
- National Clinical Research Centerfor Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Kun Li
- Department of Radiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Xuemei Wang
- Department of Movement Disorders, Center for Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
- Parkinson's Disease Center, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
| | - Zhan Wang
- Department of Movement Disorders, Center for Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
- Parkinson's Disease Center, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
| | - Huizi Ma
- Department of Movement Disorders, Center for Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
- Parkinson's Disease Center, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
| | - Tao Feng
- Department of Movement Disorders, Center for Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
- Parkinson's Disease Center, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
| | - Qi Yang
- Department of Radiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
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15
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Martínez-Pinilla E, Rico AJ, Rivas-Santisteban R, Lillo J, Roda E, Navarro G, Lanciego JL, Franco R. Expression of GPR55 and either cannabinoid CB 1 or CB 2 heteroreceptor complexes in the caudate, putamen, and accumbens nuclei of control, parkinsonian, and dyskinetic non-human primates. Brain Struct Funct 2020; 225:2153-2164. [PMID: 32691218 DOI: 10.1007/s00429-020-02116-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 07/09/2020] [Indexed: 02/07/2023]
Abstract
Endocannabinoids are neuromodulators acting on specific cannabinoid CB1 and CB2 G-protein-coupled receptors (GPCRs), representing potential therapeutic targets for neurodegenerative diseases. Cannabinoids also regulate the activity of GPR55, a recently "deorphanized" GPCR that directly interacts with CB1 and with CB2 receptors. Our hypothesis is that these heteromers may be taken as potential targets for Parkinson's disease (PD). This work aims at assessing the expression of heteromers made of GPR55 and CB1/CB2 receptors in the striatum of control and parkinsonian macaques (with and without levodopa-induced dyskinesia). For this purpose, double blind in situ proximity ligation assays, enabling the detection of GPCR heteromers in tissue samples, were performed in striatal sections of control, MPTP-treated and MPTP-treated animals rendered dyskinetic by chronic treatment with levodopa. Image analysis and statistical assessment were performed using dedicated software. We have previously demonstrated the formation of heteromers between GPR55 and CB1 receptor (CB1-GPR55_Hets), which is highly expressed in the central nervous system (CNS), but also with the CB2 receptor (CB2-GPR55_Hets). Compared to the baseline expression of CB1-GPR55_Hets in control animals, our results showed increased expression levels in basal ganglia input nuclei of MPTP-treated animals. These observed increases in CB1-GPR55_Hets returned back to baseline levels upon chronic treatment with levodopa in dyskinetic animals. Obtained data regarding CB2-GPR55_Hets were quite similar, with somehow equivalent amounts in control and dyskinetic animals, and with increased expression levels in MPTP animals. Taken together, the detected increased expression of GPR55-endocannabinoid heteromers appoints these GPCR complexes as potential non-dopaminergic targets for PD therapy.
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Affiliation(s)
- Eva Martínez-Pinilla
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, Julián Clavería s/n, 33006, Asturias, Spain.
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), Asturias, Spain.
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Asturias, Spain.
| | - Alberto J Rico
- Neurosciences Division, Centre for Applied Medical Research, CIMA, University of Navarra, Avenida Pío XII, 55, 31008, Pamplona, Spain
- Instituto de Investigaciones Sanitarias de Navarra (IdiSNA), Pamplona, Spain
- Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Rafael Rivas-Santisteban
- Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Molecular Neurobiology Laboratory, Department of Biochemistry and Molecular Biomedicine, School of Chemistry, Universitat de Barcelona, Diagonal 643, 08028, Barcelona, Spain
| | - Jaume Lillo
- Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Molecular Neurobiology Laboratory, Department of Biochemistry and Molecular Biomedicine, School of Chemistry, Universitat de Barcelona, Diagonal 643, 08028, Barcelona, Spain
| | - Elvira Roda
- Neurosciences Division, Centre for Applied Medical Research, CIMA, University of Navarra, Avenida Pío XII, 55, 31008, Pamplona, Spain
- Instituto de Investigaciones Sanitarias de Navarra (IdiSNA), Pamplona, Spain
- Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Gemma Navarro
- Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Science, University of Barcelona, Barcelona, Spain
| | - José Luis Lanciego
- Neurosciences Division, Centre for Applied Medical Research, CIMA, University of Navarra, Avenida Pío XII, 55, 31008, Pamplona, Spain.
- Instituto de Investigaciones Sanitarias de Navarra (IdiSNA), Pamplona, Spain.
- Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain.
| | - Rafael Franco
- Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain.
- Molecular Neurobiology Laboratory, Department of Biochemistry and Molecular Biomedicine, School of Chemistry, Universitat de Barcelona, Diagonal 643, 08028, Barcelona, Spain.
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van Deursen DN, van den Heuvel OA, Booij J, Berendse HW, Vriend C. Autonomic failure in Parkinson's disease is associated with striatal dopamine deficiencies. J Neurol 2020; 267:1922-1930. [PMID: 32162062 PMCID: PMC7320937 DOI: 10.1007/s00415-020-09785-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 03/03/2020] [Accepted: 03/05/2020] [Indexed: 12/11/2022]
Abstract
Autonomic dysfunction is a common non-motor symptom in Parkinson's disease (PD). Dopamine and serotonin are known to play a role in autonomic regulation, and, therefore, PD-related degeneration of serotonergic and dopaminergic neurons in these regions may be associated with autonomic dysfunction. We sought to clarify the association between extrastriatal serotonergic and striatal dopaminergic degeneration and the severity of autonomic symptoms, including gastrointestinal, pupillomotor, thermoregulatory, cardiovascular, and urinary dysfunction. We performed hierarchical multiple regression analyses to determine the relationships between (extra)striatal serotonergic and dopaminergic degeneration and autonomic dysfunction in 310 patients with PD. We used [123I]FP-CIT SPECT binding to presynaptic serotonin (SERT) and dopamine (DAT) transporters as a measure of the integrity of these neurotransmitter systems, and the SCOPA-AUT (Scales for Outcomes in Parkinson's Disease-Autonomic) questionnaire to evaluate the perceived severity of autonomic dysfunction. Motor symptom severity, medication status, and sex were added to the model as covariates. Additional analyses were also performed using five subdomains of the SCOPA-AUT: cardiovascular, gastrointestinal, urinary, thermoregulatory, and pupillomotor symptoms. We found that autonomic symptoms were most significantly related to lower [123I]FP-CIT binding ratios in the right caudate nucleus and were mainly driven by gastrointestinal and cardiovascular dysfunction. These results provide a first look into the modest role of dopaminergic projections towards the caudate nucleus in the pathophysiology of autonomic dysfunction in PD, but the underlying mechanism warrants further investigation.
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Affiliation(s)
- Dagmar N van Deursen
- Anatomy and Neurosciences, Amsterdam Neuroscience, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands
| | - Odile A van den Heuvel
- Anatomy and Neurosciences, Amsterdam Neuroscience, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands
- Department of Psychiatry, Amsterdam Neuroscience, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands
| | - Jan Booij
- Department of Radiology and Nuclear Medicine, Amsterdam Neuroscience, Amsterdam UMC, Academic Medical Center, Meibergdreef 9, Amsterdam, The Netherlands
| | - Henk W Berendse
- Department of Neurology, Amsterdam Neuroscience, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands
| | - Chris Vriend
- Anatomy and Neurosciences, Amsterdam Neuroscience, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands.
- Department of Psychiatry, Amsterdam Neuroscience, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands.
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Régio Brambilla C, Veselinović T, Rajkumar R, Mauler J, Orth L, Ruch A, Ramkiran S, Heekeren K, Kawohl W, Wyss C, Kops ER, Scheins J, Tellmann L, Boers F, Neumaier B, Ermert J, Herzog H, Langen K, Jon Shah N, Lerche C, Neuner I. mGluR5 receptor availability is associated with lower levels of negative symptoms and better cognition in male patients with chronic schizophrenia. Hum Brain Mapp 2020; 41:2762-2781. [PMID: 32150317 PMCID: PMC7294054 DOI: 10.1002/hbm.24976] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 02/25/2020] [Accepted: 02/25/2020] [Indexed: 12/29/2022] Open
Abstract
Consistent findings postulate disturbed glutamatergic function (more specifically a hypofunction of the ionotropic NMDA receptors) as an important pathophysiologic mechanism in schizophrenia. However, the role of the metabotropic glutamatergic receptors type 5 (mGluR5) in this disease remains unclear. In this study, we investigated their significance (using [11C]ABP688) for psychopathology and cognition in male patients with chronic schizophrenia and healthy controls. In the patient group, lower mGluR5 binding potential (BPND) values in the left temporal cortex and caudate were associated with higher general symptom levels (negative and depressive symptoms), lower levels of global functioning and worse cognitive performance. At the same time, in both groups, mGluR5 BPND were significantly lower in smokers (F[27,1] = 15.500; p = .001), but without significant differences between the groups. Our findings provide support for the concept that the impaired function of mGluR5 underlies the symptoms of schizophrenia. They further supply a new perspective on the complex relationship between tobacco addiction and schizophrenia by identifying glutamatergic neurotransmission—in particularly mGluR5—as a possible connection to a shared vulnerability.
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Affiliation(s)
- Cláudia Régio Brambilla
- INM‐4, Forschungszentrum Jülich GmbH, Wilhelm‐Johnen‐StraßeInstitute of Neuroscience and MedicineJülichGermany
- Department of Psychiatry, Psychotherapy and PsychosomaticsRWTH Aachen UniversityAachenGermany
| | - Tanja Veselinović
- Department of Psychiatry, Psychotherapy and PsychosomaticsRWTH Aachen UniversityAachenGermany
| | - Ravichandran Rajkumar
- INM‐4, Forschungszentrum Jülich GmbH, Wilhelm‐Johnen‐StraßeInstitute of Neuroscience and MedicineJülichGermany
- Department of Psychiatry, Psychotherapy and PsychosomaticsRWTH Aachen UniversityAachenGermany
- JARA – BRAIN – Translational MedicineAachenGermany
| | - Jörg Mauler
- INM‐4, Forschungszentrum Jülich GmbH, Wilhelm‐Johnen‐StraßeInstitute of Neuroscience and MedicineJülichGermany
| | - Linda Orth
- INM‐4, Forschungszentrum Jülich GmbH, Wilhelm‐Johnen‐StraßeInstitute of Neuroscience and MedicineJülichGermany
- Department of Psychiatry, Psychotherapy and PsychosomaticsRWTH Aachen UniversityAachenGermany
| | - Andrej Ruch
- Department of Psychiatry, Psychotherapy and PsychosomaticsRWTH Aachen UniversityAachenGermany
| | - Shukti Ramkiran
- INM‐4, Forschungszentrum Jülich GmbH, Wilhelm‐Johnen‐StraßeInstitute of Neuroscience and MedicineJülichGermany
- Department of Psychiatry, Psychotherapy and PsychosomaticsRWTH Aachen UniversityAachenGermany
| | - Karsten Heekeren
- Department of Psychiatry, Psychotherapy and PsychosomaticsUniversity Hospital of PsychiatryZürichSwitzerland
| | - Wolfram Kawohl
- Department of Psychiatry, Psychotherapy and PsychosomaticsUniversity Hospital of PsychiatryZürichSwitzerland
| | - Christine Wyss
- Department of Psychiatry, Psychotherapy and PsychosomaticsUniversity Hospital of PsychiatryZürichSwitzerland
| | - Elena Rota Kops
- INM‐4, Forschungszentrum Jülich GmbH, Wilhelm‐Johnen‐StraßeInstitute of Neuroscience and MedicineJülichGermany
| | - Jürgen Scheins
- INM‐4, Forschungszentrum Jülich GmbH, Wilhelm‐Johnen‐StraßeInstitute of Neuroscience and MedicineJülichGermany
| | - Lutz Tellmann
- INM‐4, Forschungszentrum Jülich GmbH, Wilhelm‐Johnen‐StraßeInstitute of Neuroscience and MedicineJülichGermany
| | - Frank Boers
- INM‐4, Forschungszentrum Jülich GmbH, Wilhelm‐Johnen‐StraßeInstitute of Neuroscience and MedicineJülichGermany
| | - Bernd Neumaier
- INM‐5, Forschungszentrum Jülich GmbH, Wilhelm‐Johnen‐StraßeInstitute of Neuroscience and MedicineJülichGermany
| | - Johannes Ermert
- INM‐5, Forschungszentrum Jülich GmbH, Wilhelm‐Johnen‐StraßeInstitute of Neuroscience and MedicineJülichGermany
| | - Hans Herzog
- INM‐4, Forschungszentrum Jülich GmbH, Wilhelm‐Johnen‐StraßeInstitute of Neuroscience and MedicineJülichGermany
| | - Karl‐Josef Langen
- INM‐4, Forschungszentrum Jülich GmbH, Wilhelm‐Johnen‐StraßeInstitute of Neuroscience and MedicineJülichGermany
- JARA – BRAIN – Translational MedicineAachenGermany
- Department of Nuclear MedicineRWTH Aachen UniversityAachenGermany
| | - N. Jon Shah
- INM‐4, Forschungszentrum Jülich GmbH, Wilhelm‐Johnen‐StraßeInstitute of Neuroscience and MedicineJülichGermany
- JARA – BRAIN – Translational MedicineAachenGermany
- INM‐11, Forschungszentrum Jülich GmbH, Wilhelm‐Johnen‐StraßeInstitute of Neuroscience and MedicineJülichGermany
- Department of NeurologyRWTH Aachen UniversityAachenGermany
| | - Christoph Lerche
- INM‐4, Forschungszentrum Jülich GmbH, Wilhelm‐Johnen‐StraßeInstitute of Neuroscience and MedicineJülichGermany
| | - Irene Neuner
- INM‐4, Forschungszentrum Jülich GmbH, Wilhelm‐Johnen‐StraßeInstitute of Neuroscience and MedicineJülichGermany
- Department of Psychiatry, Psychotherapy and PsychosomaticsRWTH Aachen UniversityAachenGermany
- JARA – BRAIN – Translational MedicineAachenGermany
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Ikeda A, Muroki A, Suzuki C, Shimazu Y, Takeda M. Resolvin D1 suppresses inflammation-induced hyperexcitability of nociceptive trigeminal neurons associated with mechanical hyperalgesia. Brain Res Bull 2019; 154:61-67. [PMID: 31722251 DOI: 10.1016/j.brainresbull.2019.11.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 10/18/2019] [Accepted: 11/04/2019] [Indexed: 12/19/2022]
Abstract
7S,8R,17S-trihydroxy-4Z,9E,11E,13Z,15E,19Z-docosahexaenoic acid (resolvin D1 [RvD1]) is biosynthesized from docosahexaenoic acid (DHA), and belongs to a novel family of lipid mediators showing remarkable anti-inflammatory effects; however, the effect of RvD1 on inflammation-induced hyperexcitability of nociceptive neurons under in vivo conditions remains to be determined. The present study, therefore, investigated whether under in vivo conditions, systemic administration of RvD1 could attenuate the inflammation-induced hyperexcitability of spinal trigeminal nucleus caudalis (SpVc) wide-dynamic range (WDR) neurons associated with hyperalgesia in rats. The threshold of escape from mechanical stimulation applied to the orofacial area in rats with complete Freund's adjuvant-induced inflammation was significantly lower than in naïve rats. The lowered mechanical threshold in rats with inflammation was returned to control levels following administration of RvD1 (3 ng/kg, i.p.) for 3 days. The mean discharge frequency of SpVc WDR neurons in rats with inflammation was significantly decreased after RvD1 administration for both non-noxious and noxious mechanical stimuli. Increased spontaneous discharge of SpVc WDR neurons in rats with inflammation was also significantly decreased after RvD1 administration. Noxious pinch-evoked afterdischarge frequency and occurrence in rats with inflammation was significantly diminished after RvD1 administration. Expansion of the receptive field in rats with inflammation also returned to control levels after RvD1 administration. These results suggest that administration of RvD1 attenuates inflammation-induced hyperexcitability of SpVc WDR neurons associated with inflammatory hyperalgesia. These findings support the idea that RvD1, derived from DHA, as well as DHA itself, are potential complementary or alternative therapeutic agents for the alleviation of inflammatory hyperalgesia.
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Affiliation(s)
- Anjyu Ikeda
- Laboratory of Food and Physiological Sciences, Department of Life and Food Sciences, School of Life and Environmental Sciences, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, 252-5201, Japan
| | - Akari Muroki
- Laboratory of Food and Physiological Sciences, Department of Life and Food Sciences, School of Life and Environmental Sciences, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, 252-5201, Japan
| | - Chie Suzuki
- Laboratory of Food and Physiological Sciences, Department of Life and Food Sciences, School of Life and Environmental Sciences, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, 252-5201, Japan
| | - Yoshihito Shimazu
- Laboratory of Food and Physiological Sciences, Department of Life and Food Sciences, School of Life and Environmental Sciences, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, 252-5201, Japan
| | - Mamoru Takeda
- Laboratory of Food and Physiological Sciences, Department of Life and Food Sciences, School of Life and Environmental Sciences, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, 252-5201, Japan.
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Nolde JM, Laupenmühlen J, Al-Zubaidi A, Heldmann M, Jauch-Chara K, Münte TF. Modulation of brain activity by hormonal factors in the context of ingestive behaviour. Metabolism 2019; 99:11-18. [PMID: 31271805 DOI: 10.1016/j.metabol.2019.06.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 06/24/2019] [Accepted: 06/26/2019] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Metabolic and hormonal signals have been shown to be associated with brain activity in the context of ingestive behaviour. However, this has mostly been seen in studies using external administration of hormones or glucose. We therefore studied endocrine-brain interaction in a physiological setting with hormone levels determined by metabolic conditions such as normal food intake vs. prolonged fasting. METHODS 24 healthy, normal weight men participated in two sessions, one involving a 38-hour fasting period and one a non-fasting control condition with standardized meals. Functional magnetic resonance imaging was performed at the end of the experiment with participants being required to rate pictures of food. Brain activation was compared between conditions in predefined regions of interest (ROIs). Multiple blood samples were taken to determine levels of insulin, C-peptide, cortisol, ACTH, glucose and adiponectin. These were used as a predictor variable in a regression analysis on brain activations in the different ROIs. RESULTS Food pictures were rated as more desirable in the fasting condition. Univariate analysis of ROI activations revealed mainly effects of food rating and no significant effects of the metabolic state. Multiple regression analysis revealed associations between orbitofrontal cortex activation and blood glucose in the non-fasting condition. In the fasting condition adiponectin was associated with the signal from the caudate nucleus and insulin and C-peptide were associated with functional activity of orbitofrontal regions. DISCUSSION Associations of endocrine signals and functional neural regions could be demonstrated in a realistic setting without external administration of hormones. As the current approach was correlational, further studies need to address the causal role of hormonal signals.
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Affiliation(s)
- Janis Marc Nolde
- Department of Neurology, University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany.
| | - Jana Laupenmühlen
- Department of Psychiatry, University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany
| | - Arkan Al-Zubaidi
- Department of Neurology, University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany
| | - Marcus Heldmann
- Department of Neurology, University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany; Institute of Psychology II, University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany.
| | - Kamila Jauch-Chara
- Department of Psychiatry and Psychotherapy, Christian-Albrechts-University, Niemannsweg 147, 24105 Kiel, Germany
| | - Thomas F Münte
- Department of Neurology, University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany; Institute of Psychology II, University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany.
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20
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King N, Floren S, Kharas N, Thomas M, Dafny N. Glutaminergic signaling in the caudate nucleus is required for behavioral sensitization to methylphenidate. Pharmacol Biochem Behav 2019; 184:172737. [PMID: 31228508 PMCID: PMC6692216 DOI: 10.1016/j.pbb.2019.172737] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 06/17/2019] [Accepted: 06/18/2019] [Indexed: 01/25/2023]
Abstract
Methylphenidate (MPD) is a widely prescribed psychostimulant for the treatment of attention deficit hyperactivity disorder, and is growing in use as a recreational drug and academic enhancer. MPD acts on the reward/motive and motor circuits of the CNS to produce its effects on behavior. The caudate nucleus (CN) is known to be a part of these circuits, so a lesion study was designed to elucidate the role of the CN in response to acute and chronic MPD exposure. Five groups of n = 8 rats were used: control, sham CN lesions, non-specific electrolytic CN lesions, dopaminergic-specific (6-OHDA toxin) CN lesion, and glutaminergic-specific (ibotenic acid toxin) CN lesions. On experimental day (ED) 1, all groups received saline injections. On ED 2, surgeries took place, followed by a 5-day recovery period (ED 3-7). Groups then received six daily MPD 2.5 mg/kg injections (ED 9-14), then three days of washout with no injection (ED 15-17), followed by a re-challenge with the previous 2.5 mg/kg MPD dose (ED 18). Locomotive activity was recorded for 60 min after each injection by a computerized animal activity monitor. The electrolytic CN lesion group responded to the MPD acute and chronic exposures similarly to the control and sham groups, showing an increase in locomotive activity, i.e. sensitization. The dopaminergic-specific CN lesion group failed to respond to MPD exposure both acute and chronically. The glutaminergic-specific CN lesion group responded to MPD exposure acutely but failed to manifest chronic effects. This confirms the CN's dopaminergic system is necessary for MPD to manifest its acute and chronic effects on behavior, and demonstrates that the CN's glutaminergic system is necessary for the chronic effects of MPD such as sensitization. Thus, the dopaminergic and glutaminergic components of the CN play a significant role in differentially modulating the acute and chronic effects of MPD respectively.
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Affiliation(s)
- Nicholas King
- Department of Neurobiology and Anatomy, University of Texas Health at the McGovern Medical School, 6431 Fannin Street, Houston, TX 77030, United States
| | - Samuel Floren
- Department of Neurobiology and Anatomy, University of Texas Health at the McGovern Medical School, 6431 Fannin Street, Houston, TX 77030, United States
| | - Natasha Kharas
- Department of Neurobiology and Anatomy, University of Texas Health at the McGovern Medical School, 6431 Fannin Street, Houston, TX 77030, United States
| | - Ming Thomas
- Department of Neurobiology and Anatomy, University of Texas Health at the McGovern Medical School, 6431 Fannin Street, Houston, TX 77030, United States
| | - Nachum Dafny
- Department of Neurobiology and Anatomy, University of Texas Health at the McGovern Medical School, 6431 Fannin Street, Houston, TX 77030, United States.
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21
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Zhou Z, Zhu Y, Liu Y, Yin Y. Comprehensive transcriptomic analysis indicates brain regional specific alterations in type 2 diabetes. Aging (Albany NY) 2019; 11:6398-6421. [PMID: 31449493 PMCID: PMC6738403 DOI: 10.18632/aging.102196] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 08/10/2019] [Indexed: 04/07/2023]
Abstract
Type 2 diabetes (T2D) can result in a number of comorbidities involving various organs including heart, eye, kidney and even the brain. However, little is known about the molecular basis of T2D associated brain disorders. In this study, we performed a comprehensive transcriptomic analysis in a total of 304 T2D samples and 608 matched control samples from thirteen distinct brain regions. We observed prominent difference among transcriptomic profiles of diverse brain regions in T2D. The most striking change was found in caudate with thousands of T2D-associated genes identified, followed by hippocampus, while nearly no transcriptomic change was observed in other brain regions. Functional analysis of T2D-associated genes revealed impaired synaptic functions and an association with neurodegenerative diseases. Co-expression analysis of caudate transcriptomic profiles unveiled a core regional specific module that was disorganized in T2D. Sub-modules consisting of regional markers were enriched in T2D risk single nucleotide polymorphisms (SNPs) and implied a causal link with T2D. Hub genes of this module include NSF and ADD2, the former of which has been associated with T2D and neurogenerative diseases. Thus, our work provides useful information for further studies in T2D associated brain disorders.
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Affiliation(s)
- Zhe Zhou
- Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
- Department of Pathology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Yizhang Zhu
- Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
- Department of Pathology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Yang Liu
- Department of Pathology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Yuxin Yin
- Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
- Department of Pathology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
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McQueen G, Lally J, Collier T, Zelaya F, Lythgoe DJ, Barker GJ, Stone JM, McGuire P, MacCabe JH, Egerton A. Effects of N-acetylcysteine on brain glutamate levels and resting perfusion in schizophrenia. Psychopharmacology (Berl) 2018; 235:3045-3054. [PMID: 30141055 PMCID: PMC6182588 DOI: 10.1007/s00213-018-4997-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 08/06/2018] [Indexed: 01/16/2023]
Abstract
RATIONALE N-Acetylcysteine (NAC) is currently under investigation as an adjunctive treatment for schizophrenia. The therapeutic potential of NAC may involve modulation of brain glutamate function, but its effects on brain glutamate levels in schizophrenia have not been evaluated. OBJECTIVES The aim of this study was to examine whether a single dose of NAC can alter brain glutamate levels. A secondary aim was to characterise its effects on regional brain perfusion. METHODS In a double-blind placebo-controlled crossover study, 19 patients with a diagnosis of schizophrenia underwent two MRI scans, following oral administration of 2400 mg NAC or matching placebo. Proton magnetic resonance spectroscopy was used to investigate the effect of NAC on glutamate and Glx (glutamate plus glutamine) levels scaled to creatine (Cr) in the anterior cingulate cortex (ACC) and in the right caudate nucleus. Pulsed continuous arterial spin labelling was used to assess the effects of NAC on resting cerebral blood flow (rCBF) in the same regions. RESULTS Relative to the placebo condition, the NAC condition was associated with lower levels of Glx/Cr, in the ACC (P < 0.05), but not in the caudate nucleus. There were no significant differences in CBF in the NAC compared to placebo condition. CONCLUSIONS These data provide preliminary evidence that NAC can modulate ACC glutamate in patients with schizophrenia. In contrast, physiological effects of NAC on the brain were not detectable as between session changes in rCBF. Future studies assessing the effects of a course of treatment with NAC on glutamate metabolites in schizophrenia are indicated.
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Affiliation(s)
- Grant McQueen
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, De Crespigny Park, London, UK.
| | - John Lally
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, De Crespigny Park, London, UK
- Department of Psychiatry, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Tracy Collier
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, De Crespigny Park, London, UK
| | - Fernando Zelaya
- Department of Neuroimaging, Centre for Neuroimaging Sciences, Institute of Psychiatry, Psychology & Neuroimaging, King's College London, De Crespigny Park, London, UK
| | - David J Lythgoe
- Department of Neuroimaging, Centre for Neuroimaging Sciences, Institute of Psychiatry, Psychology & Neuroimaging, King's College London, De Crespigny Park, London, UK
| | - Gareth J Barker
- Department of Neuroimaging, Centre for Neuroimaging Sciences, Institute of Psychiatry, Psychology & Neuroimaging, King's College London, De Crespigny Park, London, UK
| | - James M Stone
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, De Crespigny Park, London, UK
- Experimental Medicine, Hammersmith Hospital, Imperial College London, London, UK
| | - Philip McGuire
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, De Crespigny Park, London, UK
| | - James H MacCabe
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, De Crespigny Park, London, UK
| | - Alice Egerton
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, De Crespigny Park, London, UK
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Kasanova Z, Ceccarini J, Frank MJ, van Amelsvoort T, Booij J, van Duin E, Steinhart H, Vaessen T, Heinzel A, Mottaghy F, Myin-Germeys I. Intact striatal dopaminergic modulation of reward learning and daily-life reward-oriented behavior in first-degree relatives of individuals with psychotic disorder. Psychol Med 2018; 48:1909-1914. [PMID: 29233195 DOI: 10.1017/s0033291717003476] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Abnormalities in reward learning in psychotic disorders have been proposed to be linked to dysregulated subcortical dopaminergic (DA) neurotransmission, which in turn is a suspected mechanism for predisposition to psychosis. We therefore explored the striatal dopaminergic modulation of reward processing and its behavioral correlates in individuals at familial risk for psychosis. METHODS We performed a DA D2/3 receptor [18F]fallypride positron emission tomography scan during a probabilistic reinforcement learning task in 16 healthy first-degree relatives of patients with psychosis and 16 healthy volunteers, followed by a 6-day ecological momentary assessment study capturing reward-oriented behavior in the everyday life. RESULTS We detected significant reward-induced DA release in bilateral caudate, putamen and ventral striatum of both groups, with no group differences in its magnitude nor spatial extent. In both groups alike, greater extent of reward-induced DA release in all regions of interest was associated with better performance in the task, as well as in greater tendency to be engaged in reward-oriented behavior in the daily life. CONCLUSIONS These findings suggest intact striatal dopaminergic modulation of reinforcement learning and reward-oriented behavior in individuals with familial predisposition to psychosis. Furthermore, this study points towards a key link between striatal reward-related DA release and pursuit of ecologically relevant rewards.
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Affiliation(s)
- Zuzana Kasanova
- Center for Contextual Psychiatry, Department of Neurosciences, KU Leuven - Leuven University, Leuven, Belgium
| | - Jenny Ceccarini
- Division of Nuclear Medicine and Molecular Imaging, Department of Imaging & Pathology, University Hospitals Leuven, Leuven, Belgium
| | - Michael J Frank
- Department of Cognitive, Linguistic and Psychological Sciences, Brown University, Providence, USA
| | - Thérèse van Amelsvoort
- Department of Psychiatry and Neuropsychology, Maastricht University, Maastricht, The Netherlands
| | - Jan Booij
- Department of Nuclear Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Esther van Duin
- Department of Psychiatry and Neuropsychology, Maastricht University, Maastricht, The Netherlands
| | - Henrietta Steinhart
- Center for Contextual Psychiatry, Department of Neurosciences, KU Leuven - Leuven University, Leuven, Belgium
- Department of Psychiatry and Neuropsychology, Maastricht University, Maastricht, The Netherlands
| | - Thomas Vaessen
- Center for Contextual Psychiatry, Department of Neurosciences, KU Leuven - Leuven University, Leuven, Belgium
- Department of Psychiatry and Neuropsychology, Maastricht University, Maastricht, The Netherlands
| | - Alexander Heinzel
- Department of Nuclear Medicine, University Hospital RWTH Aachen University, Aachen, Germany
| | - Felix Mottaghy
- Department of Nuclear Medicine, University Hospital RWTH Aachen University, Aachen, Germany
| | - Inez Myin-Germeys
- Center for Contextual Psychiatry, Department of Neurosciences, KU Leuven - Leuven University, Leuven, Belgium
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Kawashima S, Ueki Y, Kato T, Ito K, Matsukawa N. Reduced striatal dopamine release during motor skill acquisition in Parkinson's disease. PLoS One 2018; 13:e0196661. [PMID: 29847548 PMCID: PMC5976194 DOI: 10.1371/journal.pone.0196661] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2017] [Accepted: 04/17/2018] [Indexed: 11/19/2022] Open
Abstract
Background Striatal dopamine is functionally important for the acquisition of motor skills. However, it remains controversial as to whether intrinsic processing of motor learning is impaired in patients with Parkinson’s disease (PD), and if yes, whether the impairment is associated with altered striatal dopamine release. Additionally, most neuro-imaging studies of patients with PD have focused on motor sequence learning. In contrast, skill acquisition, specifically, the reconstruction of muscle control of isolated movements, has barely been studied. Method In this study, we used a repetitive skill training task to measure the peak acceleration of left thumb movement during a process to achieve fine tuning of motor skill. Using 11C-raclopride (RAC) positron emission tomography, we investigated changes in striatal dopamine levels in two conditions of a skill acquisition task: initial skill training (Day 1) and acquired condition (Day 2) with eight patients with PD and age-matched healthy subjects (HS). Result In HS, the mean acceleration of each session improved through repeated training sessions on Day 1. However, in patients with PD, the training-associated increase was less than that for HS, and this suggests that repetitive skill training does not result in the effective improvement of motor performance. The regions of interest (ROI) analysis revealed that the RAC-binding potential (BP) was significantly reduced in the right putamen on Day 1 compared with Day 2 in HS. In patients with PD, BP within the right putamen was unchanged. Further, we found that patients with PD had increased dopamine levels within the right ventral striatum (VST) and right caudate (CAU) on Day 2, which was greater than that in HS. These results suggest the impaired activation of the putamen during skill acquisition in patients with PD and compensated hyperactivation of the VST and CAU for the reduced dopamine release within the dorsal putamen (DPU). Conclusion Our findings suggest that patients with PD had insufficiency in the process to improve motor skills. Different patterns of striatal dopamine release are relevant to the impairment of these motor functions in patients with PD, at the early stage of the disease.
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Affiliation(s)
- Shoji Kawashima
- Department of Neurology and Neuroscience, Nagoya City University Graduate School of Medical Science, Mizuho-ku, Nagoya, Japan
- * E-mail: (SK); (YU)
| | - Yoshino Ueki
- Department of Neurology and Neuroscience, Nagoya City University Graduate School of Medical Science, Mizuho-ku, Nagoya, Japan
- Department of Rehabilitation Medicine, Nagoya City University Graduate School of Medical Science, Mizuho-ku, Nagoya, Japan
- * E-mail: (SK); (YU)
| | - Takashi Kato
- Department of Brain Science and Molecular Imaging, Research Institute, National Center for Geriatrics and Gerontology, Morioka, Obu, Aichi Prefecture, Japan
| | - Kengo Ito
- Department of Brain Science and Molecular Imaging, Research Institute, National Center for Geriatrics and Gerontology, Morioka, Obu, Aichi Prefecture, Japan
| | - Noriyuki Matsukawa
- Department of Neurology and Neuroscience, Nagoya City University Graduate School of Medical Science, Mizuho-ku, Nagoya, Japan
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Sun TK, Chen YY, Huang SH, Hsu SW, Lee CC, Chang WN, Huang CW, Lui CC, Lien CY, Cheng JL, Chang CC. Neurotoxicity of carbon monoxide targets caudate-mediated dopaminergic system. Neurotoxicology 2017; 65:272-279. [PMID: 29173994 DOI: 10.1016/j.neuro.2017.11.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Revised: 10/30/2017] [Accepted: 11/20/2017] [Indexed: 11/19/2022]
Abstract
The clinical features of parkinsonism in carbon monoxide (CO) intoxication have been associated with striatal-related neuronal networks. As parkinsonian and neuropsychiatric features are both related to presynaptic dopaminergic integrity, the aim of this study was to explore the clinical significance of 99mTcTRODAT-1 in grading neurobehavioral scores and parkinsonian severity in CO intoxication. We enrolled 64 patients with CO intoxication, including 29 with parkinsonism (parkinsonism[+] group) and 35 without (parkinsonism[-] group). All of the patients received 99mTcTRODAT-1 neuroimaging evaluations, comprehensive neurobehavioral tests and assessments of the severity of parkinsonism using Unified Parkinson's Disease Rating Scale (UPDRS)-part III motor score. Univariate and multivariate regression analyses were used to test the predictive factors and scores for a diagnosis of parkinsonism and its severity. The parkinsonism(+) group had significantly lower cognitive scores and higher neuropsychiatric total scores compared with the parkinsonism(-) group, both of which were independently related to the severity of parkinsonism. 99mTcTRODAT-1 regional caudate signals were correlated with tremors at rest, action or postural tremors of the hands, bradykinesia and hypokinesia, and visuospatial, verbal fluency, abstract thinking and digit backwards scores. Scores of the neurobehavioral tests and UPDRS items were highly correlated (p<0.01). Our results validated the initial hypothesis in that neurobehavioral deficits and parkinsonian symptoms were highly related. This association was independent of demographic factors and initial carboxyhemoglobin level. Within the presynaptic dopaminergic circuit, the clinical role of the caudate in mediating the clinical symptoms in CO intoxication may outweigh the putamen.
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Affiliation(s)
- Tzu-Kuan Sun
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan.
| | - Yen-Yu Chen
- Departments of Thoracic & Cardiovascular Surgery Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung, Taiwan.
| | - Shu-Hua Huang
- Department of Nuclear Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan.
| | - Shih-Wei Hsu
- Department of Radiology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan.
| | - Chen-Chang Lee
- Department of Radiology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan.
| | - Wen-Neng Chang
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan.
| | - Chi-Wei Huang
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan.
| | - Chun-Chung Lui
- Division of medical imaging, E-Da Cancer Hospital and I-Shou University, Kaohsiung, Taiwan.
| | - Chia-Yi Lien
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan.
| | - Ju-Ling Cheng
- Department of Nuclear Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan.
| | - Chiung-Chih Chang
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan.
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Wiers CE, Cabrera EA, Tomasi D, Wong CT, Demiral ŞB, Kim SW, Wang GJ, Volkow ND. Striatal Dopamine D2/D3 Receptor Availability Varies Across Smoking Status. Neuropsychopharmacology 2017; 42:2325-2332. [PMID: 28643800 PMCID: PMC5645737 DOI: 10.1038/npp.2017.131] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 06/07/2017] [Accepted: 06/11/2017] [Indexed: 12/18/2022]
Abstract
To assess how tobacco smoking status affects baseline dopamine D2/D3 (D2R) receptor availability and methylphenidate-induced dopamine (DA) release, we retrospectively analyzed D2R availability measures of 8 current smokers, 10 ex-smokers, and 18 nonsmokers who were scanned with positron emission tomography and [11C]raclopride, after administration of an injection of placebo or 0.5 mg/kg i.v. methylphenidate. There was a significant effect of smoking status on baseline striatal D2R availability; with current smokers showing lower striatal D2R availability compared with nonsmokers (caudate, putamen, and ventral striatum) and with ex-smokers (caudate and putamen). Baseline striatal D2R did not differ between nonsmokers and ex-smokers. The effect of smoking status on methylphenidate-induced DA release tended to be lower in smokers but the difference was not significant (p=0.08). For behavioral measures, current smokers showed significantly higher aggression scores compared with both nonsmokers and ex-smokers. These results suggest that with abstinence ex-smokers may recover from low striatal D2R availability and from increased behavioral aggression seen in active smokers. However, longitudinal studies are needed to assess this within abstaining smokers.
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Affiliation(s)
- Corinde E Wiers
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Elizabeth A Cabrera
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Dardo Tomasi
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Christopher T Wong
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Şükrü B Demiral
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Sung Won Kim
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Gene-Jack Wang
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Nora D Volkow
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
- National Institute on Drug Abuse, National Institutes of Health, Bethesda, MD, USA
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Alves IL, Meles SK, Willemsen ATM, Dierckx RA, Marques da Silva AM, Leenders KL, Koole M. Dual time point method for the quantification of irreversible tracer kinetics: A reference tissue approach applied to [ 18F]-FDOPA brain PET. J Cereb Blood Flow Metab 2017; 37:3124-3134. [PMID: 28156211 PMCID: PMC5584692 DOI: 10.1177/0271678x16684137] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The Patlak graphical analysis (PGAREF) for quantification of irreversible tracer binding with a reference tissue model was approximated by a dual time point imaging approach (DTPREF). The DTPREF was applied to 18 [18F]-FDOPA brain scans using the occipital cortex as reference region (DTPOCC) and compared to both PGAOCC and striatal-to-occipital ratios (SOR). Pearson correlation analysis and Bland-Altman plots showed an excellent correlation and good agreement between DTPOCC and PGAOCC, while correlations between SOR and PGAOCC were consistently lower. Linear discriminant analysis (LDA) demonstrated a similar performance for all methods in differentiating patients with Parkinson's disease (PD) from healthy controls (HC). Specifically for [18F]-FDOPA brain imaging, these findings validate DTPOCC as an approximation for PGAOCC, providing the same quantitative information while reducing the acquisition time to two short static scans. For PD patients, this approach can greatly improve patient comfort while reducing motion artifacts and increasing image quality. In general, DTPREF can improve the clinical applicability of tracers with irreversible binding characteristics when a reference tissue is available.
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Affiliation(s)
- Isadora L Alves
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, The Netherlands
| | - Sanne K Meles
- Department of Neurology, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Antoon TM Willemsen
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, The Netherlands
| | - Rudi A Dierckx
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, The Netherlands
| | - Ana M Marques da Silva
- Laboratory of Medical Imaging, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Klaus L Leenders
- Department of Neurology, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Michel Koole
- Department of Nuclear Medicine and Molecular Imaging, KU Leuven, Leuven, Belgium
- Michel Koole, KU Leuven, Herestraat 49 - Bus 7003, B-3000 Leuven, Belgium.
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Czoty PW, Gould RW, Gage HD, Nader MA. Effects of social reorganization on dopamine D2/D3 receptor availability and cocaine self-administration in male cynomolgus monkeys. Psychopharmacology (Berl) 2017; 234:2673-2682. [PMID: 28608008 PMCID: PMC5709179 DOI: 10.1007/s00213-017-4658-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 05/21/2017] [Indexed: 12/14/2022]
Abstract
RATIONALE Studies have demonstrated that brain dopamine D2/D3 receptors (D2/D3R) and the reinforcing effects of cocaine can be influenced by a monkey's position in the social dominance hierarchy. OBJECTIVE In this study, we manipulated the social ranks of monkeys by reorganizing social groups and assessed effects on D2/D3R availability and cocaine self-administration. METHODS Male cynomolgus monkeys (N = 12) had been trained to self-administer cocaine under a concurrent cocaine-food reinforcement schedule. Previously, PET measures of D2/D3R availability in the caudate nucleus and putamen had been obtained with [18F]fluoroclebopride during cocaine abstinence, while monkeys lived in stable social groups of four monkeys/pen. For this study, monkeys were reorganized into groups that consisted of (1) four previously dominant, (2) four previously subordinate, and (3) a mix of previously dominant and subordinate monkeys. After 3 months, D2/D3R availability was redetermined and cocaine self-administration was reexamined. RESULTS D2/D3R availability significantly increased after reorganization in monkeys who were formerly subordinate, with the greatest increases observed in those that became dominant. No consistent changes in D2/D3R availability were observed in formerly dominant monkeys. Cocaine self-administration did not vary according to rank after reorganization of social groups. However, when compared to their previous cocaine self-administration data, the potency of cocaine as a reinforcer decreased in 9 of 11 monkeys. CONCLUSIONS These results indicate that changing the social conditions can alter D2/D3R availability in subordinate monkeys in a manner suggestive of environmental enrichment. In most monkeys, social reorganization shifted the cocaine dose-response curve to the right, also consistent with environmental enrichment.
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Affiliation(s)
- P W Czoty
- Department of Physiology and Pharmacology, Wake Forest School of Medicine, Medical Center Boulevard, 546 NRC, Winston-Salem, NC, 27157-1083, USA
| | - R W Gould
- Department of Physiology and Pharmacology, Wake Forest School of Medicine, Medical Center Boulevard, 546 NRC, Winston-Salem, NC, 27157-1083, USA
| | - H D Gage
- Department of Radiology, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA
| | - M A Nader
- Department of Physiology and Pharmacology, Wake Forest School of Medicine, Medical Center Boulevard, 546 NRC, Winston-Salem, NC, 27157-1083, USA.
- Department of Radiology, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA.
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Ciesielska A, Samaranch L, San Sebastian W, Dickson DW, Goldman S, Forsayeth J, Bankiewicz KS. Depletion of AADC activity in caudate nucleus and putamen of Parkinson's disease patients; implications for ongoing AAV2-AADC gene therapy trial. PLoS One 2017; 12:e0169965. [PMID: 28166239 PMCID: PMC5293261 DOI: 10.1371/journal.pone.0169965] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 12/27/2016] [Indexed: 01/03/2023] Open
Abstract
In Parkinson’s disease (PD), aromatic L-amino acid decarboxylase (AADC) is the rate-limiting enzyme in the conversion of L-DOPA (Sinemet) to dopamine (DA). Previous studies in PD animal models demonstrated that lesion of dopaminergic neurons is associated with profound loss of AADC activity in the striatum, blocking efficient conversion of L-DOPA to DA. Relatively few studies have directly analyzed AADC in PD brains. Thus, the aim of this study was to gain a better understanding of regional changes in AADC activity, DA, serotonin and their monoamine metabolites in the striatum of PD patients and experimentally lesioned animals (rat and MPTP-treated nonhuman primate, NHP). Striatal AADC activity was determined post mortem in neuropathologically confirmed PD subjects, animal models and controls. A regional analysis was performed for striatal AADC activity and monoamine levels in NHP tissue. Interestingly, analysis of putaminal AADC activity revealed that control human striatum contained much less AADC activity than rat and NHP striata. Moreover, a dramatic loss of AADC activity in PD striatum compared to controls was detected. In MPTP-treated NHP, caudate nucleus was almost as greatly affected as putamen, although mean DA turnover was higher in caudate nucleus. Similarly, DA and DA metabolites were dramatically reduced in different regions of PD brains, including caudate nucleus, whereas serotonin was relatively spared. After L-DOPA administration in MPTP-treated NHP, very poor conversion to DA was detected, suggesting that AADC in NHP nigrostriatal fibers is mainly responsible for L-DOPA to DA conversion. These data support further the rationale behind viral gene therapy with AAV2-hAADC to restore AADC levels in putamen and suggest further the advisability of expanding vector delivery to include coverage of anterior putamen and the caudate nucleus.
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Affiliation(s)
- Agnieszka Ciesielska
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, United States of America
| | - Lluis Samaranch
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, United States of America
| | - Waldy San Sebastian
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, United States of America
| | | | - Samuel Goldman
- Department of Neurology, University of California San Francisco, San Francisco, CA, United States of America
| | - John Forsayeth
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, United States of America
| | - Krystof S. Bankiewicz
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, United States of America
- * E-mail:
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Jeon SY, Seo S, Lee JS, Choi SH, Lee DH, Jung YH, Song MK, Lee KJ, Kim YC, Kwon HW, Im HJ, Lee DS, Cheon GJ, Kang DH. [11C]-(R)-PK11195 positron emission tomography in patients with complex regional pain syndrome: A pilot study. Medicine (Baltimore) 2017; 96:e5735. [PMID: 28072713 PMCID: PMC5228673 DOI: 10.1097/md.0000000000005735] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Complex regional pain syndrome (CRPS) is characterized by severe and chronic pain, but the pathophysiology of this disease are not clearly understood. The primary aim of our case-control study was to explore neuroinflammation in patients with CRPS using positron emission tomography (PET), with an 18-kDa translocator protein specific radioligand [C]-(R)-PK11195. [C]-(R)-PK11195 PET scans were acquired for 11 patients with CRPS (30-55 years) and 12 control subjects (30-52 years). Parametric image of distribution volume ratio (DVR) for each participant was generated by applying a relative equilibrium-based graphical analysis. The DVR of [C]-(R)-PK11195 in the caudate nucleus (t(21) = -3.209, P = 0.004), putamen (t(21) = -2.492, P = 0.022), nucleus accumbens (t(21) = -2.218, P = 0.040), and thalamus (t(21) = -2.395, P = 0.026) were significantly higher in CRPS patients than in healthy controls. Those of globus pallidus (t(21) = -2.045, P = 0.054) tended to be higher in CRPS patients than in healthy controls. In patients with CRPS, there was a positive correlation between the DVR of [C]-(R)-PK11195 in the caudate nucleus and the pain score, the visual analog scale (r = 0.661, P = 0.026, R = 0.408) and affective subscales of McGill Pain Questionnaire (r = 0.604, P = 0.049, R = 0.364). We demonstrated that neuroinflammation of CRPS patients in basal ganglia. Our results suggest that microglial pathology can be an important pathophysiology of CRPS. Association between the level of caudate nucleus and pain severity indicated that neuroinflammation in this region might play a key role. These results may be essential for developing effective medical treatments.
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Affiliation(s)
- So Yeon Jeon
- Department of Neuropsychiatry, Seoul National University Hospital
| | - Seongho Seo
- Department of Nuclear Medicine, Seoul National University College of Medicine
- Department of Brain and Cognitive Science, Seoul National University College of Natural Sciences
| | - Jae Sung Lee
- Department of Nuclear Medicine, Seoul National University College of Medicine
- Department of Brain and Cognitive Science, Seoul National University College of Natural Sciences
- Institute of Radiation Medicine, Medical Research Center
| | - Soo-Hee Choi
- Department of Neuropsychiatry, Seoul National University Hospital
- Department of Psychiatry, Seoul National University College of Medicine
| | - Do-Hyeong Lee
- Department of Neuropsychiatry, Seoul National University Hospital
| | - Ye-Ha Jung
- Department of Neuropsychiatry, Seoul National University Hospital
| | - Man-Kyu Song
- Department of Neuropsychiatry, Seoul National University Hospital
| | - Kyung-Jun Lee
- Department of Neuropsychiatry, Seoul National University Hospital
| | - Yong Chul Kim
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul
| | - Hyun Woo Kwon
- Department of Nuclear Medicine, Seoul National University College of Medicine
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Suwon, Republic of Korea
| | - Hyung-Jun Im
- Department of Nuclear Medicine, Seoul National University College of Medicine
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Suwon, Republic of Korea
| | - Dong Soo Lee
- Department of Nuclear Medicine, Seoul National University College of Medicine
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Suwon, Republic of Korea
| | - Gi Jeong Cheon
- Department of Nuclear Medicine, Seoul National University College of Medicine
- Institute of Radiation Medicine, Medical Research Center
| | - Do-Hyung Kang
- Department of Neuropsychiatry, Seoul National University Hospital
- Department of Psychiatry, Seoul National University College of Medicine
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De Santis M, Lian J, Huang XF, Deng C. Early Antipsychotic Treatment in Juvenile Rats Elicits Long-Term Alterations to the Dopamine Neurotransmitter System. Int J Mol Sci 2016; 17:E1944. [PMID: 27879654 PMCID: PMC5133938 DOI: 10.3390/ijms17111944] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 10/31/2016] [Accepted: 11/10/2016] [Indexed: 12/16/2022] Open
Abstract
Prescription of antipsychotic drugs (APDs) to children has substantially increased in recent years. Whilst current investigations into potential long-term effects have uncovered some alterations to adult behaviours, further investigations into potential changes to neurotransmitter systems are required. The current study investigated potential long-term changes to the adult dopamine (DA) system following aripiprazole, olanzapine and risperidone treatment in female and male juvenile rats. Levels of tyrosine hydroxylase (TH), phosphorylated-TH (p-TH), dopamine active transporter (DAT), and D₁ and D₂ receptors were measured via Western blot and/or receptor autoradiography. Aripiprazole decreased TH and D₁ receptor levels in the ventral tegmental area (VTA) and p-TH levels in the prefrontal cortex (PFC) of females, whilst TH levels decreased in the PFC of males. Olanzapine decreased PFC p-TH levels and increased D₂ receptor expression in the PFC and nucleus accumbens (NAc) in females only. Additionally, risperidone treatment increased D₁ receptor levels in the hippocampus of females, whilst, in males, p-TH levels increased in the PFC and hippocampus, D₁ receptor expression decreased in the NAc, and DAT levels decreased in the caudate putamen (CPu), and elevated in the VTA. These results suggest that early treatment with various APDs can cause different long-term alterations in the adult brain, across both treatment groups and genders.
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Affiliation(s)
- Michael De Santis
- Antipsychotic Research Laboratory, Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia.
- School of Medicine, University of Wollongong, Wollongong, NSW 2522, Australia.
| | - Jiamei Lian
- Antipsychotic Research Laboratory, Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia.
- School of Medicine, University of Wollongong, Wollongong, NSW 2522, Australia.
| | - Xu-Feng Huang
- School of Medicine, University of Wollongong, Wollongong, NSW 2522, Australia.
| | - Chao Deng
- Antipsychotic Research Laboratory, Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia.
- School of Medicine, University of Wollongong, Wollongong, NSW 2522, Australia.
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McOmish C, Pavey G, McLean C, Horne M, Dean B, Scarr E. Muscarinic receptor binding changes in postmortem Parkinson's disease. J Neural Transm (Vienna) 2016; 124:227-236. [PMID: 27873015 DOI: 10.1007/s00702-016-1629-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Accepted: 09/27/2016] [Indexed: 11/25/2022]
Abstract
Parkinson's disease (PD) is a devastating disorder, affecting approximately 2% of people aged 60 and above. It is marked by progressive neurodegeneration that has long been known to impact dopaminergic cells and circuits, but more recently the acetylcholine system has also been implicated in the complex aetiology and symptomatology of the disease. While broad changes in cholinergic markers have been described, insight into the contribution of specific acetylcholine receptors is less clear. To address this important unknown, in this study we performed [3H] pirenzepine, [3H] 4DAMP, and [3H] AF-DX 384 in situ radioligand binding on postmortem tissues from Brodmann's area 6, 9, 46, and the caudate putamen, from PD and matched controls to detect muscarinic M1, M3, and M1/2/4 receptors, respectively. We found no difference in [3H] pirenzepine binding between PD and controls across all regions assessed. [3H] 4DAMP binding was found to be higher in PD CPu and BA9 than in controls. [3H] AF-DX 384 was higher in BA9 of PD compared with controls. In sum, we show selective increase in M3 receptors in cortical and subcortical regions, as well as increased M2/M4 in cortical area BA9, which together support a role for cholinergic dysfunction in PD.
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Affiliation(s)
- Caitlin McOmish
- The Florey Institute for Neuroscience and Mental Health, Melbourne, VIC, Australia.
- Howard Florey Laboratories, The Florey Neuroscience Institute, University of Melbourne, 30 Royal Parade, cnr Genetics Lane, Melbourne, VIC, 3052, Australia.
| | - Geoff Pavey
- The Florey Institute for Neuroscience and Mental Health, Melbourne, VIC, Australia
| | - Catriona McLean
- Department Anatomical Pathology, Alfred Hospital, Melbourne, VIC, Australia
| | - Malcolm Horne
- The Florey Institute for Neuroscience and Mental Health, Melbourne, VIC, Australia
| | - Brian Dean
- The Florey Institute for Neuroscience and Mental Health, Melbourne, VIC, Australia
| | - Elizabeth Scarr
- The Florey Institute for Neuroscience and Mental Health, Melbourne, VIC, Australia
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Zhou L, Sun WL, Weierstall K, Minerly AC, Weiner J, Jenab S, Quinones-Jenab V. Sex differences in behavioral and PKA cascade responses to repeated cocaine administration. Psychopharmacology (Berl) 2016; 233:3527-36. [PMID: 27553823 DOI: 10.1007/s00213-016-4387-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 07/13/2016] [Indexed: 11/26/2022]
Abstract
Previous studies have shown sex different patterns in behavioral responses to cocaine. Here, we used between-subject experiment design to study whether sex differences exist in the development of behavioral sensitization and tolerance to repeated cocaine, as well as the role of protein kinase A (PKA) signaling cascade in this process. Ambulatory and rearing responses were recorded in male and female rats after 1 to 14 days of administration of saline or cocaine (15 mg/kg; ip). Correspondent PKA-associated signaling in the nucleus accumbens (NAc) and caudate-putamen (CPu) was measured at each time point. Our results showed that females exhibited higher cocaine-induced behavioral responses and developed behavioral sensitization and tolerance faster than males. Whereas females developed behavioral sensitization to cocaine after 2 days and tolerance after 14 days, male rats developed sensitization after 5 days. In addition, cocaine induced a sexual dimorphic pattern in the progression of neuronal adaptations on the PKA cascade signaling in region (NAc vs. CPu) and time (days of cocaine administration)-dependent manners. In general, more PKA signaling cascade changes were found in the NAc of males on day 5 and in the CPu of females with repeated cocaine injection. In addition, in females, behavioral activities positively correlated with FosB levels in the NAc and CPu and negatively correlated with Cdk5 and p35 in the CPu, while no correlation was observed in males. Our studies suggest that repeated cocaine administration induced different patterns of behavioral and molecular responses in the PKA cascade in male and female rats.
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Affiliation(s)
- Luyi Zhou
- Department of Biological Sciences, Hunter College of the City University of New York, New York, NY, 10065, USA
- Department of Biology PhD Program, Graduate School and University Center of the City University of New York, New York, NY, 10016, USA
- Department of Drug Discovery and Biomedical Sciences, University of South Carolina, Columbia, SC, 29208, USA
| | - Wei-Lun Sun
- Department of Drug Discovery and Biomedical Sciences, University of South Carolina, Columbia, SC, 29208, USA
- Department of Psychology, Hunter College of the City University of New York, New York, NY, 10065, USA
- Department of Biopsychology and Behavioral Neuroscience PhD Subprogram, Graduate School and University Center of the City University of New York, New York, NY, 10016, USA
| | - Karen Weierstall
- Department of Psychology, Hunter College of the City University of New York, New York, NY, 10065, USA
- Department of Biopsychology and Behavioral Neuroscience PhD Subprogram, Graduate School and University Center of the City University of New York, New York, NY, 10016, USA
| | - Ana Christina Minerly
- Department of Psychology, Hunter College of the City University of New York, New York, NY, 10065, USA
- Department of Biopsychology and Behavioral Neuroscience PhD Subprogram, Graduate School and University Center of the City University of New York, New York, NY, 10016, USA
| | - Jan Weiner
- Department of Psychology, Hunter College of the City University of New York, New York, NY, 10065, USA
- Department of Biopsychology and Behavioral Neuroscience PhD Subprogram, Graduate School and University Center of the City University of New York, New York, NY, 10016, USA
| | - Shirzad Jenab
- Department of Psychology, Hunter College of the City University of New York, New York, NY, 10065, USA
- Department of Biopsychology and Behavioral Neuroscience PhD Subprogram, Graduate School and University Center of the City University of New York, New York, NY, 10016, USA
| | - Vanya Quinones-Jenab
- Department of Biology PhD Program, Graduate School and University Center of the City University of New York, New York, NY, 10016, USA.
- Department of Psychology, Hunter College of the City University of New York, New York, NY, 10065, USA.
- Department of Biopsychology and Behavioral Neuroscience PhD Subprogram, Graduate School and University Center of the City University of New York, New York, NY, 10016, USA.
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Abstract
Epidemiological studies have linked insecticide exposure and Parkinson's disease. In addition, some insecticides produce damage or physiological disruption within the dopaminergic nigrostriatal pathway of non-humans. This study employed immunohistochemical analysis in striatum of the C57BL/6 mouse to clarify tissue changes suggested by previous pharmacological studies of the pyrethroid insecticide permethrin. Dopamine transporter, tyrosine hydroxylase, and glial fibrillary acidic protein immunoreactivities were examined in caudate-putamen to distinguish changes in amount of dopamine transporter immunoreactive protein from degeneration or other damage to dopaminergic neuropil. Weight-matched pairs of pesticide-treated and vehicle-control mice were dosed and sacrificed on the same days. Permethrin at 0.8, 1.5 and 3.0 mg/kg were the low doses and at 200 mg/kg the high dose. Brains from matched pairs of mice were processed on the same slides using the avidin-biotin technique. Four fields were morphometrically located in each of the serial sections of caudateputamen, digitally photographed, and immunopositive image pixels were counted and compared between members of matched pairs of permethrin-treated and vehicle-control mice. For low doses, only 3.0 mg/kg produced a significant decrease in dopamine transporter immunostaining. The high dose of permethrin did not produce a significant change in dopamine transporter or tyrosine hydroxylase immunostaining, but resulted in a significant increase in glial fibrillary acidic protein immunostaining. These data suggest that a low dose of permethrin can reduce the amount of dopamine transporter immunoreactive protein in the caudate-putamen. They also suggest that previously reported reductions in dopamine uptake of striatal synaptosomes of high-dose mice may be due to nondegenerative tissue damage within this region as opposed to reductions of dopamine transporter protein or death of nigrostriatal terminals. These data provide further evidence that insecticides can affect the primary neurodegenerative substrate of Parkinson's disease.
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Affiliation(s)
- Julian T Pittman
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Tech, Blacksburg, Virginia 24061, USA
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Pan YJ, Wang DX, Yang J, He XL, Xiao NM, Ma RQ, Wang CH, Lin BC. Oxytocin in hypothalamic supraoptic nucleus is transferred to the caudate nucleus to influence pain modulation. Neuropeptides 2016; 58:61-5. [PMID: 27045802 DOI: 10.1016/j.npep.2016.03.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 12/20/2015] [Accepted: 03/21/2016] [Indexed: 11/25/2022]
Abstract
Oxytocin (OXT), which is synthesized and secreted in the hypothalamic supraoptic nucleus (SON), is the most important bioactive substance in SON regulating pain process. Our previous study has pointed that OXT in the caudate nucleus (CdN) plays a role in pain modulation. The communication was designed to investigate the source of OXT in the rat CdN during pain process using the methods of push-pull perfusion and radioimmunoassay. The results showed that (1) pain stimulation increased the OXT concentration in the CdN perfusion liquid; (2) SON cauterization inhibited the increase of OXT concentration in CdN perfusion liquid induced by the pain stimulation, which role in both sides of SON cauterization was stronger than that in one side of SON cauterization; and (3) SON microinjection of l-glutamate sodium, which excited the SON neurons, increased OXT concentration in the CdN perfusion liquid. The data suggested that OXT in the CdN was influenced by SON during pain process, i.e., OXT in the SON might be transferred to the CdN to influence pain modulation.
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Affiliation(s)
- Yang-Juan Pan
- The Second Affiliated Hospital of Xinxiang Medical University (Henan Provincial Mental Hospital), Xinxiang, Henan 453002, China
| | - Da-Xin Wang
- Jiangsu Su Bei People's Hospital (Clinical College of Yangzhou University), Yangzhou, Jiangsu 225001, China
| | - Jun Yang
- Jiangsu Su Bei People's Hospital (Clinical College of Yangzhou University), Yangzhou, Jiangsu 225001, China; Xinxiang Institute for New Medicine, Xinxiang, Henan 435003, China; Standard Technological Co., Ltd., Xinxiang, Henan 435003, China.
| | - Xue-Ling He
- Xinxiang Institute for New Medicine, Xinxiang, Henan 435003, China
| | - Nai-Min Xiao
- Xinjiang Hongda Food & Beverage Co. Ltd., Xinjiang, Shanxi 043112, China
| | - Rui-Qing Ma
- Standard Technological Co., Ltd., Xinxiang, Henan 435003, China
| | - Chang-Hong Wang
- The Second Affiliated Hospital of Xinxiang Medical University (Henan Provincial Mental Hospital), Xinxiang, Henan 453002, China
| | - Bao-Cheng Lin
- Department of Neurobiology, Second Military Medical University, Shanghai 200433, China
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Abe K, Kawagoe J, Araki T, Aoki M, Kogure K. Differential expression of heat shock protein 70 gene between the cortex and caudate after transient focal cerebral ischaemia in rats. Neurol Res 2016; 14:381-5. [PMID: 1362251 DOI: 10.1080/01616412.1992.11740089] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
In relation to changes of total protein synthesis, induction of 70-kDa heat shock protein (HSP70) mRNA was examined by Northern blot and in situ hybridization after 30 min of transient middle cerebral artery (MCA) occlusion of rats. HSP70 mRNA was not present in the control condition of brain. With reperfusion, the mRNA was greatly induced along with the recovery of total protein synthesis in the cerebral cortex and lateral caudate of the ipsilateral hemisphere. However, the level of the mRNA reached a maximum earlier in the lateral caudate (at 3 h) than in the cortex (at 8 h), and the maximum amount of the mRNA was much smaller in the caudate than in the cortex. Total protein synthesis in the lateral caudate did not completely recover until 7 days. Histological examination showed a severe damage in cells of lateral caudate, while cells in the cortex were almost normal at 7 days. No difference in the brain temperature was observed between the two regions. These results show that the induction of HSP70 mRNA correlates with the recovery of protein synthesis in brain cells after a transient ischaemia, and that the HSP70 gene expression is different at the transcriptional level between the cortical and caudate cells after the transient ischaemia.
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Affiliation(s)
- K Abe
- Department of Neurology, Tohoku University School of Medicine, Sendai, Japan
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Monti DA, Zabrecky G, Kremens D, Liang TW, Wintering NA, Cai J, Wei X, Bazzan AJ, Zhong L, Bowen B, Intenzo CM, Iacovitti L, Newberg AB. N-Acetyl Cysteine May Support Dopamine Neurons in Parkinson's Disease: Preliminary Clinical and Cell Line Data. PLoS One 2016; 11:e0157602. [PMID: 27309537 PMCID: PMC4911055 DOI: 10.1371/journal.pone.0157602] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 05/31/2016] [Indexed: 12/23/2022] Open
Abstract
Backgound The purpose of this study was to assess the biological and clinical effects of n-acetyl-cysteine (NAC) in Parkinson’s disease (PD). Methods The overarching goal of this pilot study was to generate additional data about potentially protective properties of NAC in PD, using an in vitro and in vivo approach. In preparation for the clinical study we performed a cell tissue culture study with human embryonic stem cell (hESC)-derived midbrain dopamine (mDA) neurons that were treated with rotenone as a model for PD. The primary outcome in the cell tissue cultures was the number of cells that survived the insult with the neurotoxin rotenone. In the clinical study, patients continued their standard of care and were randomized to receive either daily NAC or were a waitlist control. Patients were evaluated before and after 3 months of receiving the NAC with DaTscan to measure dopamine transporter (DAT) binding and the Unified Parkinson’s Disease Rating Scale (UPDRS) to measure clinical symptoms. Results The cell line study showed that NAC exposure resulted in significantly more mDA neurons surviving after exposure to rotenone compared to no NAC, consistent with the protective effects of NAC previously observed. The clinical study showed significantly increased DAT binding in the caudate and putamen (mean increase ranging from 4.4% to 7.8%; p<0.05 for all values) in the PD group treated with NAC, and no measurable changes in the control group. UPDRS scores were also significantly improved in the NAC group (mean improvement of 12.9%, p = 0.01). Conclusions The results of this preliminary study demonstrate for the first time a potential direct effect of NAC on the dopamine system in PD patients, and this observation may be associated with positive clinical effects. A large-scale clinical trial to test the therapeutic efficacy of NAC in this population and to better elucidate the mechanism of action is warranted. Trial Registration ClinicalTrials.gov NCT02445651
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Affiliation(s)
- Daniel A. Monti
- Myrna Brind Center of Integrative Medicine, Thomas Jefferson University, Philadelphia, PA, United States of America
| | - George Zabrecky
- Myrna Brind Center of Integrative Medicine, Thomas Jefferson University, Philadelphia, PA, United States of America
| | - Daniel Kremens
- Movement Disorders Center, Department of Neurology, Thomas Jefferson University, Philadelphia, PA, United States of America
| | - Tsao-Wei Liang
- Movement Disorders Center, Department of Neurology, Thomas Jefferson University, Philadelphia, PA, United States of America
| | - Nancy A. Wintering
- Myrna Brind Center of Integrative Medicine, Thomas Jefferson University, Philadelphia, PA, United States of America
| | - Jingli Cai
- Department of Neuroscience, Thomas Jefferson University, Philadelphia, PA, United States of America
| | - Xiatao Wei
- Department of Neuroscience, Thomas Jefferson University, Philadelphia, PA, United States of America
| | - Anthony J. Bazzan
- Myrna Brind Center of Integrative Medicine, Thomas Jefferson University, Philadelphia, PA, United States of America
| | - Li Zhong
- Myrna Brind Center of Integrative Medicine, Thomas Jefferson University, Philadelphia, PA, United States of America
| | - Brendan Bowen
- Myrna Brind Center of Integrative Medicine, Thomas Jefferson University, Philadelphia, PA, United States of America
| | - Charles M. Intenzo
- Division of Nuclear Medicine, Department of Radiology, Thomas Jefferson University, Philadelphia, PA, United States of America
| | - Lorraine Iacovitti
- Department of Neuroscience, Thomas Jefferson University, Philadelphia, PA, United States of America
| | - Andrew B. Newberg
- Myrna Brind Center of Integrative Medicine, Thomas Jefferson University, Philadelphia, PA, United States of America
- Department of Neuroscience, Thomas Jefferson University, Philadelphia, PA, United States of America
- * E-mail:
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Lyamin OI, Lapierre JL, Kosenko PO, Kodama T, Bhagwandin A, Korneva SM, Peever JH, Mukhametov LM, Siegel JM. Monoamine Release during Unihemispheric Sleep and Unihemispheric Waking in the Fur Seal. Sleep 2016; 39:625-36. [PMID: 26715233 PMCID: PMC4763370 DOI: 10.5665/sleep.5540] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 10/31/2015] [Indexed: 11/03/2022] Open
Abstract
STUDY OBJECTIVES Our understanding of the role of neurotransmitters in the control of the electroencephalogram (EEG) has been entirely based on studies of animals with bilateral sleep. The study of animals with unihemispheric sleep presents the opportunity of separating the neurochemical substrates of waking and sleep EEG from the systemic, bilateral correlates of sleep and waking states. METHODS The release of histamine (HI), norepinephrine (NE), and serotonin (5HT) in cortical and subcortical areas (hypothalamus, thalamus and caudate nucleus) was measured in unrestrained northern fur seals (Callorhinus ursinus) using in vivo microdialysis, in combination with, polygraphic recording of EEG, electrooculogram, and neck electromyogram. RESULTS The pattern of cortical and subcortical HI, NE, and 5HT release in fur seals is similar during bilaterally symmetrical states: highest in active waking, reduced in quiet waking and bilateral slow wave sleep, and lowest in rapid eye movement (REM) sleep. Cortical and subcortical HI, NE, and 5HT release in seals is highly elevated during certain waking stimuli and behaviors, such as being sprayed with water and feeding. However, in contrast to acetylcholine (ACh), which we have previously studied, the release of HI, NE, and 5HT during unihemispheric sleep is not lateralized in the fur seal. CONCLUSIONS Among the studied neurotransmitters most strongly implicated in waking control, only ACh release is asymmetric in unihemispheric sleep and waking, being greatly increased on the activated side of the brain. COMMENTARY A commentary on this article appears in this issue on page 491.
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Affiliation(s)
- Oleg I. Lyamin
- Department of Psychiatry and Biobehavioral Sciences, and Brain Research Institute, University of California Los Angeles, Los Angeles, CA
- Severtsov Institute of Ecology and Evolution, RAS, Moscow, Russia
- Utrish Dolphinarium Ltd., Moscow, Russia
| | - Jennifer L. Lapierre
- Department of Cell and Systems Biology, University of Toronto, Toronto, Ontario, Canada
| | - Peter O. Kosenko
- Utrish Dolphinarium Ltd., Moscow, Russia
- Southern Federal University, Rostov-on-Don, Russia
| | - Tohru Kodama
- Department of Dementia and Higher Brain Function, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Adhil Bhagwandin
- School of Anatomical Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | | | - John H. Peever
- Department of Cell and Systems Biology, University of Toronto, Toronto, Ontario, Canada
| | - Lev M. Mukhametov
- Severtsov Institute of Ecology and Evolution, RAS, Moscow, Russia
- Utrish Dolphinarium Ltd., Moscow, Russia
| | - Jerome M. Siegel
- Department of Psychiatry and Biobehavioral Sciences, and Brain Research Institute, University of California Los Angeles, Los Angeles, CA
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Kim E, Howes OD, Park JW, Kim SN, Shin SA, Kim BH, Turkheimer FE, Lee YS, Kwon JS. Altered serotonin transporter binding potential in patients with obsessive-compulsive disorder under escitalopram treatment: [11C]DASB PET study. Psychol Med 2016; 46:357-366. [PMID: 26423910 DOI: 10.1017/s0033291715001865] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND Obsessive-compulsive disorder (OCD) is a chronic, relapsing mental illness. Selective serotonin reuptake inhibitors block serotonin transporters (SERTs) and are the mainstay of treatment for OCD. SERT abnormalities are reported in drug-free patients with OCD, but it is not known what happens to SERT levels during treatment. This is important as alterations in SERT levels in patients under treatment could underlie poor response, or relapse during or after treatment. The aim of the present study was first to validate a novel approach to measuring SERT levels in people taking treatment and then to investigate SERT binding potential (BP) using [11C]DASB PET in patients with OCD currently treated with escitalopram in comparison with healthy controls. METHOD Twelve patients and age- and sex-matched healthy controls were enrolled. The patients and healthy controls underwent serial PET scans after administration of escitalopram and blood samples for drug concentrations were collected simultaneously with the scans. Drug-free BPs were obtained by using an inhibitory E max model we developed previously. RESULTS The inhibitory E max model was able to accurately predict drug-free SERT BP in people taking drug treatment. The drug-free BP in patients with OCD currently treated with escitalopram was significantly different from those in healthy volunteers [Cohen's d = 0.03 (caudate), 1.16 (putamen), 1.46 (thalamus), -5.67 (dorsal raphe nucleus)]. CONCLUSIONS This result extends previous findings showing SERT abnormalities in drug-free patients with OCD by indicating that altered SERT availability is seen in OCD despite treatment. This could account for poor response and the high risk of relapse in OCD.
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Affiliation(s)
- E Kim
- Department of Neuropsychiatry,Seoul National University Bundang Hospital,Gyeonggi-do,Korea
| | - O D Howes
- Psychiatric Imaging,Medical Research Council Clinical Sciences Centre,Imperial College London,Hammersmith Hospital Campus,London,UK
| | - J W Park
- Department of Psychiatry,Seoul National University College of Medicine,Seoul,Korea
| | - S N Kim
- Department of Psychiatry,Seoul National University College of Medicine,Seoul,Korea
| | - S A Shin
- Department of Biomedical Sciences,Seoul National University,Seoul,Korea
| | - B-H Kim
- Department of Clinical Pharmacology and Therapeutics,Kyung Hee University College of Medicine and Hospital,Seoul,Korea
| | - F E Turkheimer
- King's College London, Institute of Psychiatry,London,UK
| | - Y-S Lee
- Department of Nuclear Medicine,Seoul National University College of Medicine,Seoul,Korea
| | - J S Kwon
- Department of Psychiatry,Seoul National University College of Medicine,Seoul,Korea
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Erdozain AM, Rubio M, Meana JJ, Fernández-Ruiz J, Callado LF. Altered CB1 receptor coupling to G-proteins in the post-mortem caudate nucleus and cerebellum of alcoholic subjects. J Psychopharmacol 2015; 29:1137-45. [PMID: 26253623 DOI: 10.1177/0269881115599388] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Biochemical, pharmacological and genetic evidence suggests the involvement of the endocannabinoid system in alcohol dependence. The aim of the present study was to evaluate the state of CB1 receptors in post-mortem caudate nucleus, hippocampus and cerebellum of alcoholic subjects.CB1 protein levels were measured by Western blot, CB1 receptor density and affinity by [(3)H]WIN55,212-2 saturation assays and CB1 functionality by [(35)S]GTPγS binding assays. Experiments were performed in samples from 24 subjects classified as non-suicidal alcoholics (n = 6), suicidal alcoholics (n = 6), non-alcoholic suicide victims (n = 6) and control subjects (n = 6).Alcoholic subjects presented hyperfunctional CB1 receptors in the caudate nucleus resulting in a higher maximal effect in both alcoholic groups compared to the non-alcoholic groups (p < 0.001). Conversely, in the cerebellum the non-suicidal alcoholic subjects showed hypofunctional receptors with lower maximal effect and potency (p < 0.001). No changes were found in the CB1 protein expression in either region. In the hippocampus of alcoholic subjects, no changes were observed either in the functionality, density or protein levels.Our data support an association between endocannabinoid system activity and alcoholism. The modifications reported here could be either a consequence of high lifetime ethanol consumption or a vulnerability factor to develop alcohol addiction.
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Affiliation(s)
- Amaia M Erdozain
- Department of Pharmacology, University of the Basque Country UPV/EHU, Bizkaia, Spain Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain Current address: Neuroscience Paris Seine, CNRS UMR 8246, INSERM U1130, Université Pierre et Marie Curie, Paris, France
| | - Marina Rubio
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Complutense University, Madrid, Spain
| | - J Javier Meana
- Department of Pharmacology, University of the Basque Country UPV/EHU, Bizkaia, Spain Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain Biocruces Health Research Institute, Bizkaia, Spain
| | - Javier Fernández-Ruiz
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Complutense University, Madrid, Spain Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain Instituto Ramón y Cajal de Investigaciones Sanitarias (IRYCIS), Madrid, Spain
| | - Luis F Callado
- Department of Pharmacology, University of the Basque Country UPV/EHU, Bizkaia, Spain Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain Biocruces Health Research Institute, Bizkaia, Spain
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Rodríguez-Violante M, Cervantes-Arriaga A, González-Latapí P, León-Ortiz P, de la Fuente-Sandoval C, Corona T. Proton Magnetic Resonance Spectroscopy Changes in Parkinson's Disease With and Without Psychosis. Rev Invest Clin 2015; 67:227-234. [PMID: 26426588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
BACKGROUND Psychosis prevalence in Parkinson's disease is estimated at 8-30%. Proton magnetic resonance spectroscopy measures specific metabolites as markers of cell functioning. OBJECTIVE To study N-acetyl-aspartate and glutamate levels in the caudate and putamen nuclei in subjects with Parkinson's disease with and without psychosis. METHODS We included 20 non-demented Parkinson's disease patients with psychosis and 20 Parkinson's disease patients without psychosis matched for age, sex, disease duration, and levodopa equivalent daily dose, all attended at an academic medical center. Proton magnetic resonance spectroscopy scans were performed in a 3T GE whole-body scanner. RESULTS Decreased glutamate levels scaled to creatine were found in the dorsal caudate (p = 0.005) and putamen (p = 0.007) of the Parkinson's disease psychosis group compared with the without psychosis group. Glutamate plus glutamine levels scaled to creatine and N-acetyl-aspartate levels scaled to creatine were also significantly reduced in the dorsal caudate of the Parkinson's disease with psychosis group (p = 0.018 and p = 0.011, respectively). No group differences were found for any of the other metabolites in the two regions of interest. CONCLUSIONS Our findings suggest that decreased metabolite levels in specific brain areas may be implicated in the development of psychosis in Parkinson's disease.
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Affiliation(s)
- Mayela Rodríguez-Violante
- Clinical Neurodegenerative Disease Research Unit, Instituto Nacional de Neurología y Neurocirugía, México, D.F., México
- Movement Disorders Clinic, Instituto Nacional de Neurología y Neurocirugía, México, D.F., México
| | - Amin Cervantes-Arriaga
- Clinical Neurodegenerative Disease Research Unit, Instituto Nacional de Neurología y Neurocirugía, México, D.F., México
| | - Paulina González-Latapí
- Clinical Neurodegenerative Disease Research Unit, Instituto Nacional de Neurología y Neurocirugía, México, D.F., México
| | - Pablo León-Ortiz
- Laboratory of Experimental Psychiatry, Instituto Nacional de Neurología y Neurocirugía, México, D.F., México
| | - Camilo de la Fuente-Sandoval
- Laboratory of Experimental Psychiatry, Instituto Nacional de Neurología y Neurocirugía, México, D.F., México
- Neuropsychiatry Department, Instituto Nacional de Neurología y Neurocirugía, México, D.F., México
| | - Teresa Corona
- Clinical Neurodegenerative Disease Research Unit, Instituto Nacional de Neurología y Neurocirugía, México, D.F., México
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Tükel R, Aydın K, Ertekin E, Özyıldırım SŞ, Taravari V. Proton magnetic resonance spectroscopy in obsessive-compulsive disorder: evidence for reduced neuronal integrity in the anterior cingulate. Psychiatry Res 2014; 224:275-80. [PMID: 25241042 DOI: 10.1016/j.pscychresns.2014.08.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 05/11/2014] [Accepted: 08/20/2014] [Indexed: 11/18/2022]
Abstract
Neuroimaging studies have suggested that dysfunction of the cortico-striatal-thalamo-cortical (CSTC) circuit is a key pathophysiologic feature of obsessive-compulsive disorder (OCD). Several studies using proton magnetic resonance spectroscopy ((1)H MRS) have found abnormal neural metabolite concentrations among OCD patients. The aim of this study was to investigate the metabolic integrity of the anterior cingulate, caudate and putamen in OCD. In the present study, 32 unmedicated patients with OCD, including 23 who were drug-naïve, were compared using MRS with 32 healthy controls. Metabolite levels of N-acetylaspartate (NAA), choline (Cho) and myo-inositol (mI) were measured in terms of their ratios to creatine (Cr). The ratio of NAA/Cr was significantly lower in OCD patients than in healthy controls in the anterior cingulate. There was a tendency for levels of NAA/Cr to be lower in the caudate and the putamen in patients with OCD compared with healthy controls. NAA/Cr ratios were negatively correlated with the total scores on the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) in the anterior cingulate in patients with OCD. Our results support the significance and biochemical involvement of the anterior cingulate cortex (ACC) in the pathophysiology of OCD.
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Affiliation(s)
- Raşit Tükel
- Department of Psychiatry, Istanbul University Istanbul Faculty of Medicine, Istanbul, Turkey.
| | - Kubilay Aydın
- Department of Radiology, Neuroradiology Division, Istanbul University Istanbul Faculty of Medicine, Istanbul, Turkey
| | - Erhan Ertekin
- Department of Psychiatry, Istanbul University Istanbul Faculty of Medicine, Istanbul, Turkey
| | - Seda Şahin Özyıldırım
- Department of Psychiatry, Istanbul University Istanbul Faculty of Medicine, Istanbul, Turkey
| | - Vedat Taravari
- Department of Radiology, Neuroradiology Division, Istanbul University Istanbul Faculty of Medicine, Istanbul, Turkey
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Goswami R, Millo T, Mishra S, Das M, Kapoor M, Tomar N, Saha S, Roy TS, Sreenivas V. Expression of osteogenic molecules in the caudate nucleus and gray matter and their potential relevance for Basal Ganglia calcification in hypoparathyroidism. J Clin Endocrinol Metab 2014; 99:1741-8. [PMID: 24552219 PMCID: PMC5393477 DOI: 10.1210/jc.2013-3863] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
BACKGROUND Basal ganglia calcification (BGC) is an interesting example of ectopic calcification in patients with hypoparathyroidism. Its pathogenesis and reasons for predilection of calcification at basal ganglia are not clear. OBJECTIVE To assess the expression of osteogenesis-related molecules in the caudate nucleus and surface gray matter (an area spared from calcification) and discuss potential relevance of the results in context of BGC in idiopathic hypoparathyroidism. METHODS Caudate nucleus and gray matter were obtained from 14 autopsies performed in accidental deaths. The mRNA expression of bone transcription factors (RUNX2/osterix), bone morphogenetic proteins (BMPs) 2 and 4, osteonectin, osteopontin, osteocalcin, vitamin D receptor, calcium sensing-receptor, Na phosphate transporters (PiTs) 1 and 2, N-methyl-D-aspartate receptor 2B (NMDAR2B), carbonic anhydrase II (CA-II), PTH1 receptor (PTH1R), PTH2R, and PTHrP were assessed by RT-PCR. Western blot, spot densitometry, and immunohistochemistry were performed to assess protein expression of molecules showing differences in mRNA expression between caudate and gray tissues. RESULTS The mean mRNA expression of PiT1 (11.0 ± 10.39 vs 32.9 ± 20.98, P = .003) and PTH2R (1.6 ± 1.47 vs 13.7 ± 6.11, P = .001) were significantly lower in the caudate nucleus than the gray matter. The expression of osteonectin, osteopontin, and CA-II were significantly higher in the caudate nucleus than the gray matter (P = .01, .001, and .04, respectively). The mRNA expression of other molecules was comparable in the 2 tissues. The protein expression of both CA-II and osteonectin was 24% higher and PiT1 17% lower in caudate than the gray matter. The differences in the PTH2R and osteopontin protein expression were not appreciable. CONCLUSIONS The presence of several osteogenic molecules in caudate nucleus indicates that BGC would probably be the outcome of an active process. The differences in expression of these molecules in caudate over gray matter could favor BGC at this site in the unique biochemical milieu of hypoparathyroid state.
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Affiliation(s)
- Ravinder Goswami
- Departments of Endocrinology and Metabolism (R.G., S.M., M.D., M.K., N.T., S.S.), Forensic Medicine (T.M.), Anatomy (T.S.R.), and Biostatistics (V.S.), All India Institute of Medical Sciences, New Delhi 110029, India
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Murnane KS, Andersen ML, Rice KC, Howell LL. Selective serotonin 2A receptor antagonism attenuates the effects of amphetamine on arousal and dopamine overflow in non-human primates. J Sleep Res 2014; 22:581-8. [PMID: 23879373 DOI: 10.1111/jsr.12045] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Accepted: 01/28/2013] [Indexed: 11/30/2022]
Abstract
The objective of the present study was to further elucidate the mechanisms involved in the wake-promoting effects of psychomotor stimulants. Many previous studies have tightly linked the effects of stimulants to dopamine neurotransmission, and some studies indicate that serotonin 2A receptors modulate these effects. However, the role of dopamine in arousal is controversial, most notably because dopamine neurons do not change firing rates across arousal states. In the present study, we examined the wake-promoting effects of the dopamine-releaser amphetamine using non-invasive telemetric monitoring. These effects were evaluated in rhesus monkeys as a laboratory animal model with high translational relevance for human disorders of sleep and arousal. To evaluate the role of dopamine in the wake-promoting effects of amphetamine, we used in vivo microdialysis targeting the caudate nucleus, as this approach provides clearly interpretable measures of presynaptic dopamine release. This is beneficial in the present context because some of the inconsistencies between previous studies examining the role of dopamine in arousal may be related to differences between postsynaptic dopamine receptors. We found that amphetamine significantly and dose-dependently increased arousal at doses that engendered higher extracellular dopamine levels. Moreover, antagonism of serotonin 2A receptors attenuated the effects of amphetamine on both wakefulness and dopamine overflow. These findings further elucidate the role of dopamine and serotonin 2A receptors in arousal, and they suggest that increased dopamine neurotransmission may be necessary for the wake-promoting effects of amphetamine, and possibly other stimulants.
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Der-Ghazarian T, Widarma CB, Gutierrez A, Amodeo LR, Valentine JM, Humphrey DE, Gonzalez AE, Crawford CA, McDougall SA. Behavioral effects of dopamine receptor inactivation in the caudate-putamen of preweanling rats: role of the D2 receptor. Psychopharmacology (Berl) 2014; 231:651-62. [PMID: 24057816 PMCID: PMC3946740 DOI: 10.1007/s00213-013-3280-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Accepted: 08/31/2013] [Indexed: 11/26/2022]
Abstract
RATIONALE Inactivating dopamine (DA) receptors in the caudate-putamen (CPu) attenuates basal and DA agonist-induced behaviors of adult rats while paradoxically increasing the locomotor activity of preweanling rats. OBJECTIVE The purpose of this study was to determine (a) whether D1 or D2 receptor inactivation is responsible for the elevated locomotion shown by preweanling rats and (b) whether DA receptor inactivation produces a general state in which any locomotor-activating drug will cause a potentiated behavioral response. METHODS Dimethyl sulfoxide (DMSO) or N-ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline (EEDQ) was bilaterally infused into the CPu on postnatal day (PD) 17. In experiment 1, DA receptors were selectively protected from EEDQ-induced alkylation by pretreating rats with D1 and/or D2 antagonists. On PD 18, rats received bilateral microinjections of the DA agonist R(-)-propylnorapomorphine into the dorsal CPu, and locomotor activity was measured for 40 min. In subsequent experiments, the locomotion of DMSO- and EEDQ-pretreated rats was assessed after intraCPu infusions of the selective DA agonists SKF82958 and quinpirole, the partial agonist terguride, or after systemic administration of nonDAergic compounds. RESULTS Experiment 1 showed that EEDQ's ability to enhance the locomotor activity of preweanling rats was primarily due to the inactivation of D2 receptors. Consistent with this finding, only drugs that directly or indirectly stimulated D2 receptors produced a potentiated locomotor response in EEDQ-treated rats. CONCLUSIONS These results show that DA receptor inactivation causes dramatically different behavioral effects in preweanling and adult rats, thus providing additional evidence that the D2 receptor system is not functionally mature by the end of the preweanling period.
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Affiliation(s)
- Taleen Der-Ghazarian
- Department of Psychology, California State University, 5500 University Parkway, San Bernardino, CA, 92407, USA
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Vytlacil J, Kayser A, Miyakawa A, D’Esposito M. An approach for identifying brainstem dopaminergic pathways using resting state functional MRI. PLoS One 2014; 9:e87109. [PMID: 24498023 PMCID: PMC3909040 DOI: 10.1371/journal.pone.0087109] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Accepted: 12/21/2013] [Indexed: 11/18/2022] Open
Abstract
Here, we present an approach for identifying brainstem dopaminergic pathways using resting state functional MRI. In a group of healthy individuals, we searched for significant functional connectivity between dopamine-rich midbrain areas (substantia nigra; ventral tegmental area) and a striatal region (caudate) that was modulated by both a pharmacological challenge (the administration of the dopaminergic agonist bromocriptine) and a dopamine-sensitive cognitive trait (an individual's working memory capacity). A significant inverted-U shaped connectivity pattern was found in a subset of midbrain-striatal connections, demonstrating that resting state fMRI data is sufficiently powerful to identify brainstem neuromodulatory brain networks.
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Affiliation(s)
- Jason Vytlacil
- Helen Wills Neuroscience Institute, University of California at Berkeley, Berkeley, California, United States of America
- Department of Psychology, University of California at Berkeley, Berkeley, California, United States of America
| | - Andrew Kayser
- Ernest Gallo Clinic & Research Center, University of California at San Francisco, San Francisco, California, United States of America
| | - Asako Miyakawa
- Helen Wills Neuroscience Institute, University of California at Berkeley, Berkeley, California, United States of America
| | - Mark D’Esposito
- Helen Wills Neuroscience Institute, University of California at Berkeley, Berkeley, California, United States of America
- Department of Psychology, University of California at Berkeley, Berkeley, California, United States of America
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Kumakura Y, Gjedde A, Caprioli D, Kienast T, Beck A, Plotkin M, Schlagenhauf F, Vernaleken I, Gründer G, Bartenstein P, Heinz A, Cumming P. Increased turnover of dopamine in caudate nucleus of detoxified alcoholic patients. PLoS One 2013; 8:e73903. [PMID: 24040111 PMCID: PMC3770672 DOI: 10.1371/journal.pone.0073903] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Accepted: 07/25/2013] [Indexed: 12/02/2022] Open
Abstract
A previous study of the DOPA decarboxylase substrate 6-[18F]fluoro-L-DOPA (FDOPA) with positron emission tomography (PET) detected no difference of the net blood-brain transfer rate (Kinapp) between detoxified alcoholic patients and healthy controls. Instead, the study revealed an inverse correlation between Kinapp in left ventral striatum and alcohol craving scores. To resolve the influx and efflux phases of radiolabeled molecules, we independently estimated the unidirectional blood-brain FDOPA clearance rate (K) and the washout rate of [18F]fluorodopamine and its deaminated metabolites (kloss), and we also calculated the total distribution volume of decarboxylated metabolites and unmetabolized FDOPA as a steady-state index of the dopamine storage capacity (Vd) in brain. The craving scores in the 12 alcoholics correlated positively with the rate of loss (kloss) in the left ventral striatum. We conclude that craving is most pronounced in the individuals with relatively rapid dopamine turnover in the left ventral striatum. The blood-brain clearance rate (K), corrected for subsequent loss of radiolabeled molecules from brain, was completely normal throughout the brain of the alcoholics, in whom the volume of distribution (Vd) was found to be significantly lower in the left caudate nucleus. The magnitude of Vd in the left caudate head was reduced by 43% relative to the 16 controls, consistent with a 58% increase of kloss. We interpret the findings as indicating that a trait for rapid dopamine turnover in the ventral striatum subserves craving and reward-dependence, leading to an acquired state of increased dopamine turnover in the dorsal striatum of detoxified alcoholic patients.
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Affiliation(s)
- Yoshitaka Kumakura
- Department of Neuroscience and Pharmacology, University of Copenhagen, Copenhagen, Denmark
- Center for Functionally Integrative Neuroscience, Aarhus University, Aarhus C, Denmark
- Department of Nuclear Medicine, Tokyo University, Tokyo, Japan
- * E-mail:
| | - Albert Gjedde
- Department of Neuroscience and Pharmacology, University of Copenhagen, Copenhagen, Denmark
- Center for Functionally Integrative Neuroscience, Aarhus University, Aarhus C, Denmark
| | - Daniele Caprioli
- Department of Experimental Psychology, Cambridge University, Cambridge, United Kingdom
| | - Thorsten Kienast
- Department of Psychiatry, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Anne Beck
- Department of Psychiatry, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Michail Plotkin
- Department of Nuclear Medicine, Charite - Universitätsmedizin Berlin, Berlin, Germany
| | | | - Ingo Vernaleken
- Department of Psychiatry, University of Aachen, Aachen, Germany
| | - Gerhard Gründer
- Department of Psychiatry, University of Aachen, Aachen, Germany
| | - Peter Bartenstein
- Department of Nuclear Medicine, Ludwig Maximilian University of Munich, Munich, Germany
| | - Andreas Heinz
- Department of Psychiatry, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Paul Cumming
- Department of Nuclear Medicine, Ludwig Maximilian University of Munich, Munich, Germany
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Abstract
In this study, we extend previous work on iron deficiency and dopamine (DA) transporters to include an examination of central serotonin (5-HT) and noradrenergic (NE) transporters. Rats were fed either iron deficient (ID) or iron adequate (CN) diets from weaning until adulthood. In males, an additional group of iron deficient animals (IR) were given iron supplementation. DA, 5-HT, and NE transporter binding was done in situ on thin sections. ID males, but not females, decreased DA transporter binding in the nucleus accumbens, caudate putamen and substantia nigra by 20-40%. ID males also had a 20-30% reduction in 5-HT transporter binding in several areas (nucleus accumbens, olfactory tubercle, colliculus) while in ID females there was 15-25% increased serotonin transporter binding in the olfactory tubercle, zona incerta, anteroventral thalamic nucleus and vestibular nucleus. Iron deficiency reduced 3H-nisoxetine binding to the NE transporter in locus ceruleus and anteroventral thalamic nucleus in males but not females. Only some of the changes observed in DA, serotonin and NE transporter binding were reversible by iron supplementation. These findings show that iron deficiency affects monoamine systems related to homeostasis and in most cases males appear to be more vulnerable than females.
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Affiliation(s)
- Maggie S Burhans
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
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Kaufman MJ, Janes AC, Frederick BD, Brimson-Théberge M, Tong Y, McWilliams SB, Bear A, Gillis TE, Schrode KM, Renshaw PF, Negus SS. A method for conducting functional MRI studies in alert nonhuman primates: initial results with opioid agonists in male cynomolgus monkeys. Exp Clin Psychopharmacol 2013; 21:323-31. [PMID: 23773004 PMCID: PMC3916219 DOI: 10.1037/a0033062] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Functional MRI (fMRI) has emerged as a powerful technique for assessing neural effects of psychoactive drugs and other stimuli. Several experimental approaches have been developed to use fMRI in anesthetized and awake animal subjects, each of which has its advantages and complexities. We sought to assess whether one particular method to scan alert postanesthetized animals can be used to assess fMRI effects of opioid agonists. To date, the use of fMRI as a method to compare pharmacological effects of opioid drugs has been limited. Such studies are important because mu and kappa opioid receptor agonists produce distinct profiles of behavioral effects related both to clinically desirable endpoints (e.g., analgesia) and to undesirable effects (e.g., abuse potential). This study sought to determine whether we could use our fMRI approach to compare acute effects of behaviorally equipotent (3.2 μg/kg) intravenous doses of fentanyl and U69,593 (doses that do not affect cardiorespiratory parameters). Scans were acquired in alert male cynomolgus macaques acclimated to undergo fMRI scans under restraint, absent excessive stress hormone increases. These opioid agonists activated bilateral striatal and nucleus accumbens regions of interest. At the dose tested, U69,593 induced greater left nucleus accumbens BOLD activation than fentanyl, while fentanyl activated left dorsal caudate nucleus more than U69,593. Our results suggest that our fMRI approach could be informative for comparing effects of opioid agonists.
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MESH Headings
- Adrenocorticotropic Hormone/blood
- Analgesics, Opioid/administration & dosage
- Analgesics, Opioid/pharmacology
- Animals
- Benzeneacetamides/administration & dosage
- Benzeneacetamides/pharmacology
- Caudate Nucleus/drug effects
- Caudate Nucleus/metabolism
- Conditioning, Psychological
- Fentanyl/administration & dosage
- Fentanyl/pharmacology
- Hydrocortisone/blood
- Injections, Intravenous
- Macaca fascicularis/physiology
- Magnetic Resonance Imaging/adverse effects
- Magnetic Resonance Imaging/veterinary
- Male
- Nerve Tissue Proteins/agonists
- Nerve Tissue Proteins/metabolism
- Neurons/drug effects
- Neurons/metabolism
- Nucleus Accumbens/drug effects
- Nucleus Accumbens/metabolism
- Pyrrolidines/administration & dosage
- Pyrrolidines/pharmacology
- Receptors, Opioid, kappa/agonists
- Receptors, Opioid, kappa/metabolism
- Receptors, Opioid, mu/agonists
- Receptors, Opioid, mu/metabolism
- Restraint, Physical/adverse effects
- Restraint, Physical/veterinary
- Stress, Physiological
- Stress, Psychological/blood
- Stress, Psychological/etiology
- Wakefulness
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Affiliation(s)
- Marc J Kaufman
- McLean Imaging Center, McLean Hospital, Belmont, MA 02478, USA.
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Kuepper R, Ceccarini J, Lataster J, van Os J, van Kroonenburgh M, van Gerven JMA, Marcelis M, Van Laere K, Henquet C. Delta-9-tetrahydrocannabinol-induced dopamine release as a function of psychosis risk: 18F-fallypride positron emission tomography study. PLoS One 2013; 8:e70378. [PMID: 23936196 PMCID: PMC3723813 DOI: 10.1371/journal.pone.0070378] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Accepted: 06/18/2013] [Indexed: 11/18/2022] Open
Abstract
Cannabis use is associated with psychosis, particularly in those with expression of, or vulnerability for, psychotic illness. The biological underpinnings of these differential associations, however, remain largely unknown. We used Positron Emission Tomography and (18)F-fallypride to test the hypothesis that genetic risk for psychosis is expressed by differential induction of dopamine release by Δ(9)-THC (delta-9-tetrahydrocannabinol, the main psychoactive ingredient of cannabis). In a single dynamic PET scanning session, striatal dopamine release after pulmonary administration of Δ(9)-THC was measured in 9 healthy cannabis users (average risk psychotic disorder), 8 patients with psychotic disorder (high risk psychotic disorder) and 7 un-related first-degree relatives (intermediate risk psychotic disorder). PET data were analyzed applying the linear extension of the simplified reference region model (LSRRM), which accounts for time-dependent changes in (18)F-fallypride displacement. Voxel-based statistical maps, representing specific D2/3 binding changes, were computed to localize areas with increased ligand displacement after Δ(9)-THC administration, reflecting dopamine release. While Δ(9)-THC was not associated with dopamine release in the control group, significant ligand displacement induced by Δ(9)-THC in striatal subregions, indicative of dopamine release, was detected in both patients and relatives. This was most pronounced in caudate nucleus. This is the first study to demonstrate differential sensitivity to Δ(9)-THC in terms of increased endogenous dopamine release in individuals at risk for psychosis.
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Affiliation(s)
- Rebecca Kuepper
- Department of Psychiatry and Psychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands.
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