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Bortolato M, Braccagni G, Pederson CA, Floris G, Fite PJ. "Weeding out" violence? Translational perspectives on the neuropsychobiological links between cannabis and aggression. AGGRESSION AND VIOLENT BEHAVIOR 2024; 78:101948. [PMID: 38828012 PMCID: PMC11141739 DOI: 10.1016/j.avb.2024.101948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
Recent shifts in societal attitudes towards cannabis have led to a dramatic increase in consumption rates in many Western countries, particularly among young people. This trend has shed light on a significant link between cannabis use disorder (CUD) and pathological reactive aggression, a condition involving disproportionate aggressive and violent reactions to minor provocations. The discourse on the connection between cannabis use and aggression is frequently enmeshed in political and legal discussions, leading to a polarized understanding of the causative relationship between cannabis use and aggression. However, integrative analyses from both human and animal research indicate a complex, bidirectional interplay between cannabis misuse and pathological aggression. On the one hand, emerging research reveals a shared genetic and environmental predisposition for both cannabis use and aggression, suggesting a common underlying biological mechanism. On the other hand, there is evidence that cannabis consumption can lead to violent behaviors while also being used as a self-medication strategy to mitigate the negative emotions associated with pathological reactive aggression. This suggests that the coexistence of pathological aggression and CUD may result from overlapping vulnerabilities, potentially creating a self-perpetuating cycle where each condition exacerbates the other, escalating into externalizing and violent behaviors. This article aims to synthesize existing research on the intricate connections between these issues and propose a theoretical model to explain the neurobiological mechanisms underpinning this complex relationship.
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Affiliation(s)
- Marco Bortolato
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Utah, Salt Lake City, UT, USA
- Consortium for Translational Research on Aggression and Drug Abuse (ConTRADA), University of Kansas, Lawrence, KS, USA
| | - Giulia Braccagni
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Utah, Salt Lake City, UT, USA
| | - Casey A. Pederson
- Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Gabriele Floris
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Utah, Salt Lake City, UT, USA
- Center for Substance Abuse Research, Temple University, Philadelphia, PA, USA
- Department of Neural Sciences, Temple University, Philadelphia, PA, USA
| | - Paula J. Fite
- Consortium for Translational Research on Aggression and Drug Abuse (ConTRADA), University of Kansas, Lawrence, KS, USA
- Clinical Child Psychology Program, University of Kansas, Lawrence, KS, USA
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Thöny B, Ng J, Kurian MA, Mills P, Martinez A. Mouse models for inherited monoamine neurotransmitter disorders. J Inherit Metab Dis 2024; 47:533-550. [PMID: 38168036 DOI: 10.1002/jimd.12710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 11/07/2023] [Accepted: 12/19/2023] [Indexed: 01/05/2024]
Abstract
Several mouse models have been developed to study human defects of primary and secondary inherited monoamine neurotransmitter disorders (iMND). As the field continues to expand, current defects in corresponding mouse models include enzymes and a molecular co-chaperone involved in monoamine synthesis and metabolism (PAH, TH, PITX3, AADC, DBH, MAOA, DNAJC6), tetrahydrobiopterin (BH4) cofactor synthesis and recycling (adGTPCH1/DRD, arGTPCH1, PTPS, SR, DHPR), and vitamin B6 cofactor deficiency (ALDH7A1), as well as defective monoamine neurotransmitter packaging (VMAT1, VMAT2) and reuptake (DAT). No mouse models are available for human DNAJC12 co-chaperone and PNPO-B6 deficiencies, disorders associated with recessive variants that result in decreased stability and function of the aromatic amino acid hydroxylases and decreased neurotransmitter synthesis, respectively. More than one mutant mouse is available for some of these defects, which is invaluable as different variant-specific (knock-in) models may provide more insights into underlying mechanisms of disorders, while complete gene inactivation (knock-out) models often have limitations in terms of recapitulating complex human diseases. While these mouse models have common phenotypic traits also observed in patients, reflecting the defective homeostasis of the monoamine neurotransmitter pathways, they also present with disease-specific manifestations with toxic accumulation or deficiency of specific metabolites related to the specific gene affected. This review provides an overview of the currently available models and may give directions toward selecting existing models or generating new ones to investigate novel pathogenic mechanisms and precision therapies.
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Affiliation(s)
- Beat Thöny
- Division of Metabolism and Children's Research Center, University Children's Hospital Zurich, Zürich, Switzerland
| | - Joanne Ng
- Genetic Therapy Accelerator Centre, University College London, Queen Square Institute of Neurology, London, UK
| | - Manju A Kurian
- Zayed Centre for Research into Rare Disease in Children, GOS Institute of Child Health, University College London, London, UK
- Department of Neurology, Great Ormond Street Hospital, London, UK
| | - Philippa Mills
- Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Aurora Martinez
- Department of Biomedicine and Center for Translational Research in Parkinson's Disease, University of Bergen, Bergen, Norway
- Neuro-SysMed, Department of Neurology, Haukeland University Hospital, Bergen, Norway
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3
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Minniti ML, Kalantari S, Pasca L, Bruno S, Arceri S, Novello E, Giorgio E, Rizzo V, Borgatti R, Valente EM, Pisani A, Orcesi S, Sirchia F. Expanding the phenotype of Brunner syndrome from childhood to adulthood: Description of the second pediatric patient and his mother. Am J Med Genet A 2024; 194:82-87. [PMID: 37750385 DOI: 10.1002/ajmg.a.63413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 08/02/2023] [Accepted: 09/08/2023] [Indexed: 09/27/2023]
Abstract
Brunner syndrome is a recessive X-linked disorder caused by pathogenic variants in the monoamine oxidase A gene (MAOA). It is characterized by distinctive aggressive behavior, mild intellectual disability, sleep disturbances, and typical biochemical alterations deriving from the impaired monoamine metabolism. We herein describe a 5-year-old boy with developmental delay, autistic features, and myoclonic epilepsy, and his mother, who had mild intellectual disability and recurrent episodes of palpitations, headache, abdominal pain, and abdominal bloating. Whole exome sequencing allowed detection of the maternally-inherited variant c.410A>G, (p.Glu137Gly) in the MAOA gene. The subsequent biochemical studies confirmed the MAOA deficiency both in the child and his mother. Given the serotonergic symptoms associated with high serotonin levels found in the mother, treatment with a serotonin reuptake inhibitor and dietary modifications were carried out, resulting in regression of the biochemical abnormalities and partial reduction of symptoms. Our report expands the phenotypic spectrum of Brunner disease, bringing new perspectives on the behavioral and neurodevelopmental phenotype from childhood to adulthood.
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Affiliation(s)
- Maria Letizia Minniti
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
- Department of Child Neurology and Psychiatry, IRCCS Mondino Foundation, Pavia, Italy
| | - Silvia Kalantari
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Ludovica Pasca
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
- Department of Child Neurology and Psychiatry, IRCCS Mondino Foundation, Pavia, Italy
| | - Samantha Bruno
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
- Department of Child Neurology and Psychiatry, IRCCS Mondino Foundation, Pavia, Italy
| | | | - Elisa Novello
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | - Elisa Giorgio
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
- IRCCS Mondino Foundation, Neurogenetics Research Center, Pavia, Italy
| | - Vittoria Rizzo
- Department of Molecular Medicine, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Renato Borgatti
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
- Department of Child Neurology and Psychiatry, IRCCS Mondino Foundation, Pavia, Italy
| | - Enza Maria Valente
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
- IRCCS Mondino Foundation, Neurogenetics Research Center, Pavia, Italy
| | - Antonio Pisani
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
- IRCCS, Mondino Foundation, Pavia, Italy
| | - Simona Orcesi
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
- Department of Child Neurology and Psychiatry, IRCCS Mondino Foundation, Pavia, Italy
| | - Fabio Sirchia
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
- Medical Genetic Unit, Department of Diagnostic Medicine, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
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4
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Han H, Li H, Ma Y, Zhao Z, An Q, Zhao J, Shi C. Monoamine oxidase A (MAOA): A promising target for prostate cancer therapy. Cancer Lett 2023; 563:216188. [PMID: 37076041 DOI: 10.1016/j.canlet.2023.216188] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 04/08/2023] [Accepted: 04/11/2023] [Indexed: 04/21/2023]
Abstract
Monoamine oxidase A (MAOA) is a mitochondrial enzyme that catalyzes the oxidative deamination of monoamine neurotransmitters and dietary amines. Previous studies have shown that MAOA is clinically associated with prostate cancer (PCa) progression and plays a key role in almost each stage of PCa, including castrate-resistant prostate cancer, neuroendocrine prostate cancer, metastasis, drug resistance, stemness, and perineural invasion. Moreover, MAOA expression is upregulated not only in cancer cells but also in stromal cells, intratumoral T cells, and tumor-associated macrophages; thus, targeting MAOA can be a multi-pronged approach to disrupt tumor promoting interactions between PCa cells and tumor microenvironment. Furthermore, targeting MAOA can disrupt the crosstalk between MAOA and the androgen receptor (AR) to restore enzalutamide sensitivity, blocks glucocorticoid receptor (GR)- and AR-dependent PCa cell growth, and is a potential strategy for immune checkpoint inhibition, thereby alleviating immune suppression and enhancing T cell immunity-based cancer immunotherapy. MAOA is a promising target for PCa therapy, which deserves further exploration in preclinical and clinical settings.
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Affiliation(s)
- Hao Han
- Division of Cancer Biology, Laboratory Animal Center, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China; School of Basic Medical Sciences, Medical College of Yan'an University, 580 Bao-Ta Street, Yan'an, Shaanxi, 716000, China
| | - Hui Li
- Division of Cancer Biology, Laboratory Animal Center, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China; School of Basic Medical Sciences, Medical College of Yan'an University, 580 Bao-Ta Street, Yan'an, Shaanxi, 716000, China
| | - Yifan Ma
- Gansu University of Traditional Chinese Medicine, Lanzhou, Gansu, 730030, China
| | - Zhite Zhao
- Department of Urology, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi, 710032, China
| | - Qingling An
- Division of Cancer Biology, Laboratory Animal Center, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Jumei Zhao
- School of Basic Medical Sciences, Medical College of Yan'an University, 580 Bao-Ta Street, Yan'an, Shaanxi, 716000, China.
| | - Changhong Shi
- Division of Cancer Biology, Laboratory Animal Center, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China.
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Carvalho MRS, Barbosa de Carvalho AH, Paiva GM, Andrade Jorge CDC, Dos Santos FC, Koltermann G, de Salles JF, Moeller K, Maia de Oliveira Wood G, Haase VG. MAOA-LPR polymorphism and math anxiety: A marker of genetic susceptibility to social influences in girls? Ann N Y Acad Sci 2022; 1516:135-150. [PMID: 35765118 DOI: 10.1111/nyas.14814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Math anxiety (MA) seems to result from an interaction of genetic vulnerability with negative experiences learning mathematics. Although mathematics achievement does not substantially differ between the sexes, MA levels are usually higher in girls. Molecular genetic markers of MA vulnerability have been seldom explored. This article examines the contribution of the monoamine oxidase A gene (MAOA) to MA and to sex differences in MA. Five hundred and sixty-eight third to fifth graders were genotyped for the MAOA-LPR polymorphism (a repetitive element in MAOA promoter that has been associated with MAOA enzymatic activity), and assessed on general cognitive ability, mathematics achievement, and the cognitive and affective dimensions of MA. MAOA-LPR genotypes were classified as high (MAOA-H) or low (MAOA-L) according to their predicted enzymatic activity. Mixed models controlling for effects of school, sex, general cognitive ability, and mathematics achievement were evaluated. The best fitting model included school, math achievement, sex, MAOA-LPR, and the MAOA-LPR by sex interaction. This indicated that under the MAOA-H dominant model, anxiety toward mathematics interacted with the MAOA genotype: girls with an MAOA-L genotype exhibited higher levels of MA, with a small but significant effect. The association between MAOA-L genotype and MA in girls may represent an example of developmental plasticity.
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Affiliation(s)
- Maria Raquel Santos Carvalho
- Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Programa de Pós-graduação em Genética, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - André Henrique Barbosa de Carvalho
- Programa de Pós-graduação em Genética, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Giulia Moreira Paiva
- Programa de Pós graduação em Neurociências, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Carolina de Castro Andrade Jorge
- Programa de Pós-graduação em Genética, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Fernanda Caroline Dos Santos
- Programa de Pós-graduação em Genética, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Gabriella Koltermann
- Programa de Pós-graduação em Psicologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Jerusa Fumagalli de Salles
- Programa de Pós-graduação em Psicologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Departamento de Psicologia do Desenvolvimento e da Personalidade, Instituto de Psicologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Korbinian Moeller
- Centre for Mathematical Cognition, Loughborough University, Loughborough, UK.,Leibniz-Institut fuer Wissensmedien, Tuebingen, Germany.,LEAD Graduate School & Research Network, University of Tuebingen, Tuebingen, Germany.,Individual Differences and Adaptive Education Centre, Frankfurt am Main, Germany
| | | | - Vitor Geraldi Haase
- Programa de Pós graduação em Neurociências, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Departamento de Psicologia, Faculdade de Filosofia e Ciências Humanas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Programa de Pós-graduação em Psicologia: Cognição e Comportamento, Faculdade de Filosofia e Ciências Humanas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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6
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Melis MR, Sanna F, Argiolas A. Dopamine, Erectile Function and Male Sexual Behavior from the Past to the Present: A Review. Brain Sci 2022; 12:brainsci12070826. [PMID: 35884633 PMCID: PMC9312911 DOI: 10.3390/brainsci12070826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 06/08/2022] [Accepted: 06/21/2022] [Indexed: 11/16/2022] Open
Abstract
Early and recent studies show that dopamine through its neuronal systems and receptor subtypes plays different roles in the control of male sexual behavior. These studies show that (i) the mesolimbic/mesocortical dopaminergic system plays a key role in the preparatory phase of sexual behavior, e.g., in sexual arousal, motivation and reward, whereas the nigrostriatal system controls the sensory-motor coordination necessary for copulation, (ii) the incertohypothalamic system is involved in the consummatory aspects of sexual behavior (penile erection and copulation), but evidence for its role in sexual motivation is also available, (iii) the pro-sexual effects of dopamine occur in concert with neural systems interconnecting the hypothalamus and preoptic area with the spinal cord, ventral tegmental area and other limbic brain areas and (iv) D2 and D4 receptors play a major role in the pro-sexual effects of dopamine. Despite some controversy, increases or decreases, respectively, of brain dopamine activity induced by drugs or that occur physiologically, usually improves or worsens, respectively, sexual activity. These findings suggest that an altered central dopaminergic tone plays a role in mental pathologies characterized by aberrant sexual behavior, and that pro-erectile D4 receptor agonists may be considered a new strategy for the treatment of erectile dysfunction in men.
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Silva EDO, de Carvalho AHB, Paiva GM, Jorge CA, Koltermann G, de Salles JF, Haase VG, Carvalho MRS. Do boys with MAOA_LPR*2R allele present cognitive and learning impairments? Dement Neuropsychol 2022; 16:162-170. [PMID: 35720651 PMCID: PMC9173787 DOI: 10.1590/1980-5764-dn-2021-0071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 10/04/2021] [Accepted: 10/09/2021] [Indexed: 12/02/2022] Open
Abstract
Monoamine oxidase A (MAOA) polymorphisms have been associated with antisocial disorders. Less attention has been paid to the cognitive functioning of individuals with different MAOA alleles. No study has described the cognitive phenotype associated with the less frequent, low enzyme activity allele, MAOA_LPR*2R.
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Affiliation(s)
- Emanuelle de Oliveira Silva
- Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Programa de Pós-graduação em Neurociências, Belo Horizonte MG, Brazil
| | - André Henrique Barbosa de Carvalho
- Universidade Federal de Minas Gerais, Ecologia e Evolução, Instituto de Ciências Biológicas, Programa de Pós-Graduação em Genética, Departamento de Genética, Belo Horizonte MG, Brazil
| | - Giulia Moreira Paiva
- Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Programa de Pós-graduação em Neurociências, Belo Horizonte MG, Brazil
| | - Carolina Andrade Jorge
- Universidade Federal de Minas Gerais, Ecologia e Evolução, Instituto de Ciências Biológicas, Programa de Pós-Graduação em Genética, Departamento de Genética, Belo Horizonte MG, Brazil
| | - Gabriella Koltermann
- Universidade Federal do Rio Grande do Sul, Programa de Pós-Graduação em Psicologia, Porto Alegre RS, Brazil
| | - Jerusa Fumagalli de Salles
- Universidade Federal do Rio Grande do Sul, Programa de Pós-Graduação em Psicologia, Porto Alegre RS, Brazil
| | - Vitor Geraldi Haase
- Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Programa de Pós-graduação em Neurociências, Belo Horizonte MG, Brazil.,Universidade Federal de Minas Gerais, Departamento de Psicologia, Faculdade de Filosofia e Ciências Humanas, Belo Horizonte MG, Brazil.,Universidade Federal de Minas Gerais, Faculdade de Filosofia e Ciências Humanas,Programa de Pós-Graduação em Psicologia: Cognição e Comportamento, Departamento de Psicologia, Belo Horizonte MG, Brazil.,Instituto Nacional de Ciência e Tecnologia sobre Cognição, Comportamento e Ensino, São Carlos SP, Brazil
| | - Maria Raquel Santos Carvalho
- Universidade Federal de Minas Gerais, Ecologia e Evolução, Instituto de Ciências Biológicas, Programa de Pós-Graduação em Genética, Departamento de Genética, Belo Horizonte MG, Brazil.,Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Departamento de Genética, Ecologia e Evolução, Belo Horizonte MG, Brazil
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Frau R, Pardu A, Godar S, Bini V, Bortolato M. Combined Antagonism of 5-HT2 and NMDA Receptors Reduces the Aggression of Monoamine Oxidase a Knockout Mice. Pharmaceuticals (Basel) 2022; 15:ph15020213. [PMID: 35215325 PMCID: PMC8875523 DOI: 10.3390/ph15020213] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 02/06/2022] [Accepted: 02/07/2022] [Indexed: 02/04/2023] Open
Abstract
The enzyme monoamine oxidase A (MAOA) catalyzes the degradation of several neurotransmitters, including serotonin. A large body of evidence has shown that genetic MAOA deficiency predisposes humans and mice to aggression and antisocial behavior. We previously documented that the aggression of male MAOA-deficient mice is contributed by serotonin 5-HT2 and glutamate N-methyl-D-aspartate (NMDA) receptors in the prefrontal cortex (PFC). Indeed, blocking either receptor reduces the aggression of MAOA knockout (KO) mice; however, 5-HT2 receptor antagonists, such as ketanserin (KET), reduce locomotor activity, while NMDA receptor blockers are typically associated with psychotomimetic properties. To verify whether NMDA receptor blockers induce psychotomimetic effects in MAOA KO mice, here we tested the effects of these compounds on prepulse inhibition (PPI) of the acoustic startle reflex. We found that male MAOA KO mice are hypersensitive to the PPI-disrupting properties of NMDA receptor antagonists, including the non-competitive antagonist dizocilpine (DIZ; 0.1, 0.3 mg/kg, IP) and the NR2B subunit-specific blocker Ro-256981 (5, 10 mg/kg, IP). Since KET has been previously shown to counter the PPI deficits caused by NMDA receptor antagonists, we tested the behavioral effects of the combination of KET (2 mg/kg, IP) and these drugs. Our results show that the combination of KET and DIZ potently reduces aggression in MAOA KO mice without any PPI deficits and sedative effects. While the PPI-ameliorative properties of KET were also observed after infusion in the medial PFC (0.05 μg/side), KET did not counter the PPI-disruptive effects of Ro-256981 in MAOA KO mice. Taken together, these results point to the combination of non-subunit-selective NMDA and 5-HT2 receptor antagonists as a potential therapeutic approach for aggression and antisocial behavior with a better safety and tolerability profile than each monotherapy.
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Affiliation(s)
- Roberto Frau
- Department of Biomedical Sciences, Division of Neuroscience and Clinical Pharmacology, University of Cagliari, 09042 Monserrato, Italy; (A.P.); (V.B.)
- Guy Everett Laboratory, Department of Biomedical Sciences, Division of Neuroscience and Clinical Pharmacology, University of Cagliari, 09042 Monserrato, Italy
- Correspondence: (R.F.); (M.B.)
| | - Alessandra Pardu
- Department of Biomedical Sciences, Division of Neuroscience and Clinical Pharmacology, University of Cagliari, 09042 Monserrato, Italy; (A.P.); (V.B.)
| | - Sean Godar
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA 90089, USA;
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Utah, Salt Lake City, UT 84112, USA
| | - Valentina Bini
- Department of Biomedical Sciences, Division of Neuroscience and Clinical Pharmacology, University of Cagliari, 09042 Monserrato, Italy; (A.P.); (V.B.)
| | - Marco Bortolato
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Utah, Salt Lake City, UT 84112, USA
- Correspondence: (R.F.); (M.B.)
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9
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Chen K, Palagashvili T, Hsu W, Chen Y, Tabakoff B, Hong F, Shih AT, Shih JC. Brain injury and inflammation genes common to a number of neurological diseases and the genes involved in the genesis of GABAnergic neurons are altered in monoamine oxidase B knockout mice. Brain Res 2022; 1774:147724. [PMID: 34780749 PMCID: PMC8638699 DOI: 10.1016/j.brainres.2021.147724] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 11/03/2021] [Accepted: 11/08/2021] [Indexed: 01/03/2023]
Abstract
Monoamine oxidase B (MAO B) oxidizes trace amine phenylethylamine (PEA), and neurotransmitters serotonin and dopamine in the brain. We reported previously that PEA levels increased significantly in all brain regions, but serotonin and dopamine levels were unchanged in MAO B knockout (KO) mice. PEA and dopamine are both synthesized from phenylalanine by aromatic L-amino acid decarboxylase in dopaminergic neurons in the striatum. A high concentration of PEA in the striatum may cause dopaminergic neuronal death in the absence of MAO B. We isolated the RNA from brain tissue of MAO B KO mice (2-month old) and age-matched wild type (WT) male mice and analyzed the altered genes by Affymetrix microarray. Differentially expressed genes (DEGs) in MAO B KO compared to WT mice were analyzed by Partek Genomics Suite, followed by Ingenuity Pathway Analysis (IPA) to assess their functional relationships. DEGs in MAO B KO mice are involved in brain inflammation and the genesis of GABAnergic neurons. The significant DEGs include four brain injury or inflammation genes (upregulated: Ido1, TSPO, AVP, Tdo2), five gamma-aminobutyric acid (GABA) receptors (down-regulated: GABRA2, GABRA3, GABRB1, GABRB3, GABRG3), five transcription factors related to adult neurogenesis (upregulated: Wnt7b, Hes5; down-regulated: Pax6, Tcf4, Dtna). Altered brain injury and inflammation genes in MAO B knockout mice are involved in various neurological disorders: attention deficit hyperactive disorder, panic disorder, obsessive compulsive disorder, autism, amyotrophic lateral sclerosis, Parkinson's diseases, Alzheimer's disease, bipolar affective disorder. Many were commonly involved in these disorders, indicating that there are overlapping molecular pathways.
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Affiliation(s)
- Kevin Chen
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, 1985 Zonal Ave., Los Angeles, CA, USA
| | - Tamara Palagashvili
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, 1985 Zonal Ave., Los Angeles, CA, USA
| | - W Hsu
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, 1985 Zonal Ave., Los Angeles, CA, USA
| | - Yibu Chen
- Norris Medical Library, University of Southern California, Los Angeles, CA, USA
| | - Boris Tabakoff
- University of Colorado Health Science Center, Denver, CO, USA
| | - Frank Hong
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, 1985 Zonal Ave., Los Angeles, CA, USA
| | - Abigail T Shih
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, 1985 Zonal Ave., Los Angeles, CA, USA
| | - Jean C Shih
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, 1985 Zonal Ave., Los Angeles, CA, USA; Department of Integrative Anatomical Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA; Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA; USC-Taiwan Center for Translational Research, University of Southern California, Los Angeles CA, USA.
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10
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van Rhijn JR, Shi Y, Bormann M, Mossink B, Frega M, Recaioglu H, Hakobjan M, Klein Gunnewiek T, Schoenmaker C, Palmer E, Faivre L, Kittel-Schneider S, Schubert D, Brunner H, Franke B, Nadif Kasri N. Brunner syndrome associated MAOA mutations result in NMDAR hyperfunction and increased network activity in human dopaminergic neurons. Neurobiol Dis 2021; 163:105587. [PMID: 34923109 DOI: 10.1016/j.nbd.2021.105587] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 12/01/2021] [Accepted: 12/15/2021] [Indexed: 01/15/2023] Open
Abstract
Monoamine neurotransmitter abundance affects motor control, emotion, and cognitive function and is regulated by monoamine oxidases. Among these, Monoamine oxidase A (MAOA) catalyzes the degradation of dopamine, norepinephrine, and serotonin into their inactive metabolites. Loss-of-function mutations in the X-linked MAOA gene have been associated with Brunner syndrome, which is characterized by various forms of impulsivity, maladaptive externalizing behavior, and mild intellectual disability. Impaired MAOA activity in individuals with Brunner syndrome results in bioamine aberration, but it is currently unknown how this affects neuronal function, specifically in dopaminergic (DA) neurons. Here we generated human induced pluripotent stem cell (hiPSC)-derived DA neurons from three individuals with Brunner syndrome carrying different mutations and characterized neuronal properties at the single cell and neuronal network level in vitro. DA neurons of Brunner syndrome patients showed reduced synaptic density but exhibited hyperactive network activity. Intrinsic functional properties and α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR)-mediated synaptic transmission were not affected in DA neurons of individuals with Brunner syndrome. Instead, we show that the neuronal network hyperactivity is mediated by upregulation of the GRIN2A and GRIN2B subunits of the N-methyl-d-aspartate receptor (NMDAR), resulting in increased NMDAR-mediated currents. By correcting a MAOA missense mutation with CRISPR/Cas9 genome editing we normalized GRIN2A and GRIN2B expression, NMDAR function and neuronal population activity to control levels. Our data suggest that MAOA mutations in Brunner syndrome increase the activity of dopaminergic neurons through upregulation of NMDAR function, which may contribute to the etiology of Brunner syndrome associated phenotypes.
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Affiliation(s)
- Jon-Ruben van Rhijn
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Yan Shi
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Maren Bormann
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Britt Mossink
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands; Department of Human Genetics, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Monica Frega
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands; Department of Clinical neurophysiology, University of Twente, 7522 NB Enschede, Netherlands
| | - Hatice Recaioglu
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Marina Hakobjan
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Teun Klein Gunnewiek
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands; Department of Anatomy, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Chantal Schoenmaker
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Elizabeth Palmer
- Genetics of Learning Disability Service, Hunter Genetics, Waratah, NSW, Australia; School of Women's and Children's Health, University of New South Wales, Randwick, NSW, Australia
| | - Laurence Faivre
- Centre de Référence Anomalies du développement et Syndromes malformatifs and FHU TRANSLAD, Hôpital d'Enfants, Dijon, France; INSERM UMR1231 GAD, Faculté de Médecine, Université de Bourgogne, Dijon, France
| | - Sarah Kittel-Schneider
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital, Goethe-University, Frankfurt, Germany; Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Würzburg, Würzburg, Germany
| | - Dirk Schubert
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Han Brunner
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands; Department of Clinical Genetics, MUMC+, GROW School of Oncology and Developmental Biology, and MHeNS School of Neuroscience and Maastricht University, Maastricht, the Netherlands
| | - Barbara Franke
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands; Department of Psychiatry, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Nael Nadif Kasri
- Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands; Department of Human Genetics, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands.
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11
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Baronio D, Chen YC, Panula P. Abnormal brain development of monoamine oxidase mutant zebrafish and impaired social interaction of heterozygous fish. Dis Model Mech 2021; 15:273667. [PMID: 34881779 PMCID: PMC8891935 DOI: 10.1242/dmm.049133] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 12/01/2021] [Indexed: 11/20/2022] Open
Abstract
Monoamine oxidase (MAO) deficiency and imbalanced levels of brain monoamines have been associated with developmental delay, neuropsychiatric disorders and aggressive behavior. Animal models are valuable tools to gain mechanistic insight into outcomes associated with MAO deficiency. Here, we report a novel genetic model to study the effects of mao loss of function in zebrafish. Quantitative PCR, in situ hybridization and immunocytochemistry were used to study neurotransmitter systems and expression of relevant genes for brain development in zebrafish mao mutants. Larval and adult fish behavior was evaluated through different tests. Stronger serotonin immunoreactivity was detected in mao+/− and mao−/− larvae compared with their mao+/+ siblings. mao−/− larvae were hypoactive, and presented decreased reactions to visual and acoustic stimuli. They also had impaired histaminergic and dopaminergic systems, abnormal expression of developmental markers and died within 20 days post-fertilization. mao+/− fish were viable, grew until adulthood, and demonstrated anxiety-like behavior and impaired social interactions compared with adult mao+/+ siblings. Our results indicate that mao−/− and mao+/− mutants could be promising tools to study the roles of MAO in brain development and behavior. This article has an associated First Person interview with the first author of the paper. Summary: We assessed developmental, neurochemical and behavioral alterations displayed by mao+/− and mao−/− zebrafish, establishing that these model organisms are promising tools to study the consequences of MAOA/B deficiency.
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Affiliation(s)
- Diego Baronio
- Department of Anatomy, University of Helsinki, Helsinki, Finland
| | - Yu-Chia Chen
- Department of Anatomy, University of Helsinki, Helsinki, Finland
| | - Pertti Panula
- Department of Anatomy, University of Helsinki, Helsinki, Finland
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12
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Zha X, Xu XH. Neural circuit mechanisms that govern inter-male attack in mice. Cell Mol Life Sci 2021; 78:7289-7307. [PMID: 34687319 PMCID: PMC11072497 DOI: 10.1007/s00018-021-03956-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 09/01/2021] [Accepted: 09/27/2021] [Indexed: 10/20/2022]
Abstract
Individuals of many species fight with conspecifics to gain access to or defend critical resources essential for survival and reproduction. Such intraspecific fighting is evolutionarily selected for in a species-, sex-, and environment-dependent manner when the value of resources secured exceeds the cost of fighting. One such example is males fighting for chances to mate with females. Recent advances in new tools open up ways to dissect the detailed neural circuit mechanisms that govern intraspecific, particularly inter-male, aggression in the model organism Mus musculus (house mouse). By targeting and functional manipulating genetically defined populations of neurons and their projections, these studies reveal a core neural circuit that controls the display of reactive male-male attacks in mice, from sensory detection to decision making and action selection. Here, we summarize these critical results. We then describe various modulatory inputs that route into the core circuit to afford state-dependent and top-down modulation of inter-male attacks. While reviewing these exciting developments, we note that how the inter-male attack circuit converges or diverges with neural circuits that mediate other forms of social interactions remain not fully understood. Finally, we emphasize the importance of combining circuit, pharmacological, and genetic analysis when studying the neural control of aggression in the future.
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Affiliation(s)
- Xi Zha
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Center for Brain Science and Brain-Inspired Intelligence Technology, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Xiao-Hong Xu
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Center for Brain Science and Brain-Inspired Intelligence Technology, Chinese Academy of Sciences, Shanghai, 200031, China.
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13
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Xu J, Wu F, Li Y, Wang F, Lin W, Qian S, Li H, Fan Y, Li H, Chen L, Xu H, Chen L, Liu Y, Li X, He J. Fibroblast growth factor 21 associating with serotonin and dopamine in the cerebrospinal fluid predicts impulsivity in healthy subjects. BMC Neurosci 2021; 22:68. [PMID: 34800969 PMCID: PMC8605581 DOI: 10.1186/s12868-021-00676-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 11/11/2021] [Indexed: 01/01/2023] Open
Abstract
Background Impulsivity is more commonly reported in subjects with mental disorders compared to healthy subjects, suggesting a potential application of impulsivity in predicting impulsivity-related mental disorders. However, no biomarker of impulsivity available so far. This study explored the association between cerebrospinal fluid (CSF) fibroblast growth factor 21 (FGF21), a key hormonal mediator of the stress response, and impulsivity in healthy subjects. Methods A total of 126 healthy persons subjected to surgery of anterior cruciate ligament were recruited in the present study. The impulsiveness of the subjects was evaluated by the Chinese version of the Barratt Impulsiveness Scale (BIS)-11 before surgery. CSF and blood samples of the subjects were collected before spinal anesthesia for surgery. The levels of FGF21, serotonin and dopamine in CSF and the level of FGF21 in blood of the subjects were measured by ELISA using commercial kits. Results Negative correlations were found between BIS-11 total score and either FGF21, serotonin or dopamine in CSF. However, BIS-11 total score was not correlated with FGF21 in blood. In addition, FGF21 was positively correlated with serotonin and dopamine in CSF, respectively. Multivariable linear regression models indicated that the decrease of FGF21 level associating with the decrease of serotonin and dopamine level in CSF contributed to the higher impulsivity. Furthermore, receiver operating characteristic curve (ROC) analysis indicated an important role of CSF FGF21 predicting high impulsivity. Conclusions FGF21, serotonin and dopamine in CSF associate with impulsivity in opposite directions. The decrease of CSF FGF21 is related to higher impulsivity, and indicate that CSF FGF21 may predict impulsivity in healthy subjects.
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Affiliation(s)
- Jinzhong Xu
- Department of Clinical Pharmacy, Affiliated Wenling Hospital, Wenzhou Medical University, Wenling, Zhejiang, China
| | - Fenzan Wu
- Laboratory of Translational Medicine, Affiliated Cixi Hospital, Wenzhou Medical University, Ningbo, Zhejiang, China
| | - Yuying Li
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Fan Wang
- Beijing Hui-Long-Guan Hospital, Peking University, Beijing, China.,Key Laboratory of Psychosomatic Medicine, Inner Mongolia Medical University, Huhhot, China
| | - Wenhui Lin
- Central Laboratory, Affiliated Wenling Hospital, Wenzhou Medical University, Wenling, Zhejiang, China
| | - Song Qian
- The Criminal Science and Technology Department, Zhejiang Police College, Hangzhou, Zhejiang, China
| | - Hui Li
- Xinjiang Key Laboratory of Neurological Disorder Research, the Second Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Yuncao Fan
- Central Laboratory, Affiliated Wenling Hospital, Wenzhou Medical University, Wenling, Zhejiang, China
| | - Huai Li
- The Affiliated Kangning Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,School of Mental Health, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Lijing Chen
- The Affiliated Kangning Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,School of Mental Health, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Haiyun Xu
- The Affiliated Kangning Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,School of Mental Health, Wenzhou Medical University, Wenzhou, Zhejiang, China.,Institute of Aging, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Li Chen
- The Affiliated Kangning Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,School of Mental Health, Wenzhou Medical University, Wenzhou, Zhejiang, China.,Institute of Aging, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yanlong Liu
- The Affiliated Kangning Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,School of Mental Health, Wenzhou Medical University, Wenzhou, Zhejiang, China.,Institute of Aging, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiaokun Li
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Jue He
- The Affiliated Kangning Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China. .,School of Mental Health, Wenzhou Medical University, Wenzhou, Zhejiang, China. .,Institute of Aging, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang, China. .,Institute of Neurological Disease, First Affiliated Hospital, Henan University, Kaifeng, Henan, China.
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14
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Keller M, Brennenstuhl H, Kuseyri Hübschmann O, Manti F, Julia Palacios NA, Friedman J, Yıldız Y, Koht JA, Wong SN, Zafeiriou DI, López-Laso E, Pons R, Kulhánek J, Jeltsch K, Serrano-Lomelin J, Garbade SF, Opladen T, Goez H, Burlina A, Cortès-Saladelafont E, Fernández Ramos JA, García-Cazorla A, Hoffmann GF, Kiat Hong ST, Honzík T, Kavecan I, Kurian MA, Leuzzi V, Lücke T, Manzoni F, Mastrangelo M, Mercimek-Andrews S, Mir P, Oppebøen M, Pearson TS, Sivri HS, Steel D, Stevanović G, Fung CW. Assessment of intellectual impairment, health-related quality of life, and behavioral phenotype in patients with neurotransmitter related disorders: Data from the iNTD registry. J Inherit Metab Dis 2021; 44:1489-1502. [PMID: 34245036 DOI: 10.1002/jimd.12416] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/30/2021] [Accepted: 07/07/2021] [Indexed: 12/30/2022]
Abstract
Inherited disorders of neurotransmitter metabolism are a group of rare diseases, which are caused by impaired synthesis, transport, or degradation of neurotransmitters or cofactors and result in various degrees of delayed or impaired psychomotor development. To assess the effect of neurotransmitter deficiencies on intelligence, quality of life, and behavior, the data of 148 patients in the registry of the International Working Group on Neurotransmitter Related Disorders (iNTD) was evaluated using results from standardized age-adjusted tests and questionnaires. Patients with a primary disorder of monoamine metabolism had lower IQ scores (mean IQ 58, range 40-100) within the range of cognitive impairment (<70) compared to patients with a BH4 deficiency (mean IQ 84, range 40-129). Short attention span and distractibility were most frequently mentioned by parents, while patients reported most frequently anxiety and distractibility when asked for behavioral traits. In individuals with succinic semialdehyde dehydrogenase deficiency, self-stimulatory behaviors were commonly reported by parents, whereas in patients with dopamine transporter deficiency, DNAJC12 deficiency, and monoamine oxidase A deficiency, self-injurious or mutilating behaviors have commonly been observed. Phobic fears were increased in patients with 6-pyruvoyltetrahydropterin synthase deficiency, while individuals with sepiapterin reductase deficiency frequently experienced communication and sleep difficulties. Patients with BH4 deficiencies achieved significantly higher quality of life as compared to other groups. This analysis of the iNTD registry data highlights: (a) difference in IQ and subdomains of quality of life between BH4 deficiencies and primary neurotransmitter-related disorders and (b) previously underreported behavioral traits.
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Affiliation(s)
- Mareike Keller
- Division of Child Neurology and Metabolic Medicine, University Children's Hospital Heidelberg, Heidelberg, Germany
| | - Heiko Brennenstuhl
- Division of Child Neurology and Metabolic Medicine, University Children's Hospital Heidelberg, Heidelberg, Germany
| | - Oya Kuseyri Hübschmann
- Division of Child Neurology and Metabolic Medicine, University Children's Hospital Heidelberg, Heidelberg, Germany
| | - Filippo Manti
- Department of Human Neuroscience, Unit of Child Neurology and Psychiatry, Università degli Studi di Roma La Sapienza, Rome, Italy
| | - Natalia Alexandra Julia Palacios
- Inborn errors of metabolism Unit, Department of Neurology, Institut de Recerca Sant Joan de Déu and CIBERER-ISCIII, Barcelona, Spain
| | - Jennifer Friedman
- UCSD Departments of Neuroscience and Pediatrics; Rady Children's Hospital Division of Neurology, Rady Children's Institute for Genomic Medicine, San Diego, California, USA
| | - Yılmaz Yıldız
- Hacettepe University, Faculty of Medicine, Department of Pediatrics, Section of Pediatric Metabolism, Ankara, Turkey
| | | | - Suet-Na Wong
- Department of Pediatrics and Adolescent Medicine, The Hong Kong Children's Hospital, Hong Kong, Hong Kong
| | - Dimitrios I Zafeiriou
- First Department of Pediatrics Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Eduardo López-Laso
- Pediatric Neurology Unit, Department of Pediatrics, University Hospital Reina Sofía, IMIBIC and CIBERER, Córdoba, Spain
| | - Roser Pons
- First Department of Pediatrics of the University of Athens, Aghia Sofia Hospital, Athens, Greece
| | - Jan Kulhánek
- Department of Pediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Kathrin Jeltsch
- Division of Child Neurology and Metabolic Medicine, University Children's Hospital Heidelberg, Heidelberg, Germany
| | - Jesus Serrano-Lomelin
- Women and Children's Health Research Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Sven F Garbade
- Division of Child Neurology and Metabolic Medicine, University Children's Hospital Heidelberg, Heidelberg, Germany
- Dietmar-Hopp Metabolic Center, University Children's Hospital Heidelberg, Heidelberg, Germany
| | - Thomas Opladen
- Division of Child Neurology and Metabolic Medicine, University Children's Hospital Heidelberg, Heidelberg, Germany
| | - Helly Goez
- Department of Pediatrics, University of Alberta, Glenrose Rehabilitation Hospital, Edmonton, Alberta, Canada
| | - Alberto Burlina
- U.O.C. Malattie Metaboliche Ereditarie, Dipartimento della Salute della Donna e del Bambino, Azienda Ospedaliera Universitaria di Padova - Campus Biomedico Pietro d'Abano, Padova, Italy
| | - Elisenda Cortès-Saladelafont
- Inborn errors of metabolism Unit, Department of Neurology, Institut de Recerca Sant Joan de Déu and CIBERER-ISCIII, Barcelona, Spain
- Inborn Errors of Metabolism and Child Neurology Unit, Department of Pediatrics, Hospital Germans Trias i Pujol, Badalona and Faculty of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | | | - Angeles García-Cazorla
- Inborn errors of metabolism Unit, Department of Neurology, Institut de Recerca Sant Joan de Déu and CIBERER-ISCIII, Barcelona, Spain
| | - Georg F Hoffmann
- Division of Child Neurology and Metabolic Medicine, University Children's Hospital Heidelberg, Heidelberg, Germany
| | - Stacey Tay Kiat Hong
- KTP-National University Children's Medical Institute, National University Health System, Singapore, Singapore
| | - Tomáš Honzík
- Department of Pediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Ivana Kavecan
- Faculty of Medicine, University of Novi Sad, Institute for Children and Youth Health Care of Vojvodina, Novi Sad, Serbia
| | - Manju A Kurian
- Developmental Neurosciences, UCL Great Ormond Street-Institute of Child Health and Department of Neurology, Great Ormond Street Hospital, London, UK
| | - Vincenzo Leuzzi
- Department of Human Neuroscience, Unit of Child Neurology and Psychiatry, Università degli Studi di Roma La Sapienza, Rome, Italy
| | - Thomas Lücke
- University Children's Hospital, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | - Francesca Manzoni
- U.O.C. Malattie Metaboliche Ereditarie, Dipartimento della Salute della Donna e del Bambino, Azienda Ospedaliera Universitaria di Padova - Campus Biomedico Pietro d'Abano, Padova, Italy
| | - Mario Mastrangelo
- Department of Human Neuroscience, Unit of Child Neurology and Psychiatry, Università degli Studi di Roma La Sapienza, Rome, Italy
| | - Saadet Mercimek-Andrews
- Division of Clinical and Metabolic Genetics, Department of Pediatrics, University of Toronto, The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Medical Genetics, University of Alberta, Women and Children's Health Research Institute, Stollery Children's Hospital, Edmonton, Alberta, Canada
| | - Pablo Mir
- Unidad de Trastornos del Movimiento Servicio de Neurología y Neurofisiología Clínica Unidad de Gestión Clínica de Neurociencias Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío, Sevilla, Spain
| | - Mari Oppebøen
- Children's Department Division of Child Neurology Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Toni S Pearson
- Department of Neurology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - H Serap Sivri
- Hacettepe University, Faculty of Medicine, Department of Pediatrics, Section of Pediatric Metabolism, Ankara, Turkey
| | - Dora Steel
- Developmental Neurosciences, UCL Great Ormond Street-Institute of Child Health and Department of Neurology, Great Ormond Street Hospital, London, UK
| | - Galina Stevanović
- Clinic of Neurology and Psychiatry for Children and Youth, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Cheuk-Wing Fung
- Department of Pediatrics and Adolescent Medicine, The Hong Kong Children's Hospital, Hong Kong, Hong Kong
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15
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Farrow E, Chiocchetti AG, Rogers JC, Pauli R, Raschle NM, Gonzalez-Madruga K, Smaragdi A, Martinelli A, Kohls G, Stadler C, Konrad K, Fairchild G, Freitag CM, Chechlacz M, De Brito SA. SLC25A24 gene methylation and gray matter volume in females with and without conduct disorder: an exploratory epigenetic neuroimaging study. Transl Psychiatry 2021; 11:492. [PMID: 34561420 PMCID: PMC8463588 DOI: 10.1038/s41398-021-01609-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 06/29/2021] [Accepted: 09/02/2021] [Indexed: 11/09/2022] Open
Abstract
Conduct disorder (CD), a psychiatric disorder characterized by a repetitive pattern of antisocial behaviors, results from a complex interplay between genetic and environmental factors. The clinical presentation of CD varies both according to the individual's sex and level of callous-unemotional (CU) traits, but it remains unclear how genetic and environmental factors interact at the molecular level to produce these differences. Emerging evidence in males implicates methylation of genes associated with socio-affective processes. Here, we combined an epigenome-wide association study with structural neuroimaging in 51 females with CD and 59 typically developing (TD) females to examine DNA methylation in relation to CD, CU traits, and gray matter volume (GMV). We demonstrate an inverse pattern of correlation between CU traits and methylation of a chromosome 1 region in CD females (positive) as compared to TD females (negative). The identified region spans exon 1 of the SLC25A24 gene, central to energy metabolism due to its role in mitochondrial function. Increased SLC25A24 methylation was also related to lower GMV in multiple brain regions in the overall cohort. These included the superior frontal gyrus, prefrontal cortex, and supramarginal gyrus, secondary visual cortex and ventral posterior cingulate cortex, which are regions that have previously been implicated in CD and CU traits. While our findings are preliminary and need to be replicated in larger samples, they provide novel evidence that CU traits in females are associated with methylation levels in a fundamentally different way in CD and TD, which in turn may relate to observable variations in GMV across the brain.
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Affiliation(s)
- Elizabeth Farrow
- School of Psychology and Centre for Human Brain Health, University of Birmingham, Birmingham, UK.
| | - Andreas G. Chiocchetti
- grid.7839.50000 0004 1936 9721Department of Child and Adolescent Psychiatry, Psychosomatics, and Psychotherapy, University Hospital Frankfurt, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Jack C. Rogers
- grid.6572.60000 0004 1936 7486School of Psychology and Institute for Mental Health, University of Birmingham, Birmingham, UK
| | - Ruth Pauli
- grid.6572.60000 0004 1936 7486School of Psychology and Centre for Human Brain Health, University of Birmingham, Birmingham, UK
| | - Nora M. Raschle
- grid.7400.30000 0004 1937 0650Jacobs Center for Productive Youth Development, University of Zurich, Zurich, Switzerland
| | | | | | - Anne Martinelli
- grid.7839.50000 0004 1936 9721Department of Child and Adolescent Psychiatry, Psychosomatics, and Psychotherapy, University Hospital Frankfurt, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Gregor Kohls
- grid.1957.a0000 0001 0728 696XRWTH Aachen University, Aachen, Germany
| | | | - Kerstin Konrad
- grid.1957.a0000 0001 0728 696XRWTH Aachen University, Aachen, Germany
| | - Graeme Fairchild
- grid.7340.00000 0001 2162 1699Department of Psychology, University of Bath, Bath, UK
| | - Christine M. Freitag
- grid.7839.50000 0004 1936 9721Department of Child and Adolescent Psychiatry, Psychosomatics, and Psychotherapy, University Hospital Frankfurt, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Magdalena Chechlacz
- grid.6572.60000 0004 1936 7486School of Psychology and Centre for Human Brain Health, University of Birmingham, Birmingham, UK
| | - Stephane A. De Brito
- grid.6572.60000 0004 1936 7486School of Psychology and Centre for Human Brain Health, University of Birmingham, Birmingham, UK
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16
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Abstract
We have structure, a wealth of kinetic data, thousands of chemical ligands and clinical information for the effects of a range of drugs on monoamine oxidase activity in vivo. We have comparative information from various species and mutations on kinetics and effects of inhibition. Nevertheless, there are what seem like simple questions still to be answered. This article presents a brief summary of existing experimental evidence the background and poses questions that remain intriguing for chemists and biochemists researching the chemical enzymology of and drug design for monoamine oxidases (FAD-containing EC 4.1.3.4).
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17
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Aydin T, Akincioglu H, Gumustas M, Gulcin I, Kazaz C, Cakir A. human monoamine oxidase (hMAO) A and hMAO B inhibitors from Artemisia dracunculus L. herniarin and skimmin: human mononamine oxidase A and B inhibitors from A. dracunculus L. ACTA ACUST UNITED AC 2021; 75:459-466. [PMID: 32598328 DOI: 10.1515/znc-2019-0227] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 05/25/2020] [Indexed: 12/28/2022]
Abstract
The aim of this study was to investigate the effects of extracts and pure Artemisia dracunculus L. (tarragon) metabolites on the antimonoamine oxidase and anticholinesterase activities. The compounds were characterized as stigmasterol (1), herniarin (2), (2E,4E)-1-(piperidin-1-yl)undeca-2,4-diene-8,10-diyn-1-one (3), (2E,4E)-N-isobutylundeca-2,4-dien-8,10-diynamide (4), 3,4-dehydroherniarin (5) and skimmin (6) by 1H-NMR, 13C-NMR, 1D and 2D NMR methods. The compounds 5 and 6 were isolated from tarragon for the first time. The extracts and pure compounds have inhibitory effects on the human monoamine oxidase (hMAO) A and B enzymes, whereas they did not exhibit any anticholinesterase activities. Among the tarragon compounds, only 2 and 6 compounds showed the inhibitory effects against hMAO A (IC50 = 51.76 and 73.47 μM, respectively) and hMAO B (IC50 = 0.84 and 1.63 mM, respectively). In the study, herniarin content in the extracts was also analysed by high-performance liquid chromatography and it was found that there was a relationship between the inhibition effects of the extracts and their herniarin content.
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Affiliation(s)
- Tuba Aydin
- Department of Pharmacognosy, Faculty of Pharmacy, Agri Ibrahim Cecen University, Agri04100, Turkey
| | - Hulya Akincioglu
- Department of Biochemistry, Faculty of Science and Letters, Agri Ibrahim Cecen University, Agri04100, Turkey
| | | | - Ilhami Gulcin
- Department of Chemistry, Faculty of Science, Ataturk University, Erzurum25070, Turkey
| | - Cavit Kazaz
- Department of Chemistry, Faculty of Science, Ataturk University, Erzurum25070, Turkey
| | - Ahmet Cakir
- Department of Chemistry, Faculty of Science and Letters, Kilis 7 Aralik University, Kilis79000, Turkey
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18
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Ostadkarampour M, Putnins EE. Monoamine Oxidase Inhibitors: A Review of Their Anti-Inflammatory Therapeutic Potential and Mechanisms of Action. Front Pharmacol 2021; 12:676239. [PMID: 33995107 PMCID: PMC8120032 DOI: 10.3389/fphar.2021.676239] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 04/06/2021] [Indexed: 12/18/2022] Open
Abstract
Chronic inflammatory diseases are debilitating, affect patients' quality of life, and are a significant financial burden on health care. Inflammation is regulated by pro-inflammatory cytokines and chemokines that are expressed by immune and non-immune cells, and their expression is highly controlled, both spatially and temporally. Their dysregulation is a hallmark of chronic inflammatory and autoimmune diseases. Significant evidence supports that monoamine oxidase (MAO) inhibitor drugs have anti-inflammatory effects. MAO inhibitors are principally prescribed for the management of a variety of central nervous system (CNS)-associated diseases such as depression, Alzheimer's, and Parkinson's; however, they also have anti-inflammatory effects in the CNS and a variety of non-CNS tissues. To bolster support for their development as anti-inflammatories, it is critical to elucidate their mechanism(s) of action. MAO inhibitors decrease the generation of end products such as hydrogen peroxide, aldehyde, and ammonium. They also inhibit biogenic amine degradation, and this increases cellular and pericellular catecholamines in a variety of immune and some non-immune cells. This decrease in end product metabolites and increase in catecholamines can play a significant role in the anti-inflammatory effects of MAO inhibitors. This review examines MAO inhibitor effects on inflammation in a variety of in vitro and in vivo CNS and non-CNS disease models, as well as their anti-inflammatory mechanism(s) of action.
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Affiliation(s)
- Mahyar Ostadkarampour
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, The University of British Columbia, Vancouver, BC, Canada
| | - Edward E Putnins
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, The University of British Columbia, Vancouver, BC, Canada
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19
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Higazi AM, Kamel HM, Abdel-Naeem EA, Abdullah NM, Mahrous DM, Osman AM. Expression analysis of selected genes involved in tryptophan metabolic pathways in Egyptian children with Autism Spectrum Disorder and learning disabilities. Sci Rep 2021; 11:6931. [PMID: 33767242 PMCID: PMC7994393 DOI: 10.1038/s41598-021-86162-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 03/07/2021] [Indexed: 01/31/2023] Open
Abstract
Autism Spectrum Disorder (ASD) and learning disabilities are neurodevelopmental disabilities characterized by dramatically increasing incidence rates, yet the exact etiology for these disabilities is not identified. Impairment in tryptophan metabolism has been suggested to participate in the pathogenesis of ASD, however, further validation of its involvement is required. Additionally, its role in learning disabilities is still uninvestigated. Our objective was to evaluate some aspects of tryptophan metabolism in ASD children (N = 45) compared to children with learning disabilities (N = 44) and healthy controls (N = 40) by measuring the expression levels of the MAOA, HAAO and AADAT genes using real-time RT-qPCR. We also aimed to correlate the expression patterns of these genes with parental ages at the time of childbirth, levels of serum iron, and vitamin D3 and zinc/copper ratio, as possible risk factors for ASD. Results demonstrated a significant decrease in the expression of the selected genes within ASD children (p < 0.001) relative to children with learning disabilities and healthy controls, which significantly associated with the levels of our targeted risk factors (p < 0.05) and negatively correlated to ASD scoring (p < 0.001). In conclusion, this study suggests that the expression of the MAOA, HAAO and AADAT genes may underpin the pathophysiology of ASD.
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Affiliation(s)
- Aliaa M. Higazi
- grid.411806.a0000 0000 8999 4945Clinical and Molecular Chemistry Unit, Department of Clinical and Chemical Pathology, Faculty of Medicine, Minia University, Minia, Egypt
| | - Hanan M. Kamel
- grid.411806.a0000 0000 8999 4945Clinical and Molecular Chemistry Unit, Department of Clinical and Chemical Pathology, Faculty of Medicine, Minia University, Minia, Egypt
| | - Emad A. Abdel-Naeem
- grid.411806.a0000 0000 8999 4945Immunology Unit, Department of Clinical and Chemical Pathology, Faculty of Medicine, Minia University, Minia, Egypt
| | - Noha M. Abdullah
- grid.411806.a0000 0000 8999 4945Clinical and Molecular Chemistry Unit, Department of Clinical and Chemical Pathology, Faculty of Medicine, Minia University, Minia, Egypt
| | - Doaa M. Mahrous
- grid.411806.a0000 0000 8999 4945Department of Pediatrics, Faculty of Medicine, Minia University, Minia, Egypt
| | - Ashraf M. Osman
- grid.411806.a0000 0000 8999 4945Clinical and Molecular Chemistry Unit, Department of Clinical and Chemical Pathology, Faculty of Medicine, Minia University, Minia, Egypt
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20
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The neurobiology of human aggressive behavior: Neuroimaging, genetic, and neurochemical aspects. Prog Neuropsychopharmacol Biol Psychiatry 2021; 106:110059. [PMID: 32822763 DOI: 10.1016/j.pnpbp.2020.110059] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 06/12/2020] [Accepted: 08/03/2020] [Indexed: 12/18/2022]
Abstract
In modern societies, there is a strive to improve the quality of life related to risk of crimes which inevitably requires a better understanding of brain determinants and mediators of aggression. Neurobiology provides powerful tools to achieve this end. Pre-clinical and clinical studies show that changes in regional volumes, metabolism-function and connectivity within specific neural networks are related to aggression. Subregions of prefrontal cortex, insula, amygdala, basal ganglia and hippocampus play a major role within these circuits and have been consistently implicated in biology of aggression. Genetic variations in proteins regulating the synthesis, degradation, and transport of serotonin and dopamine as well as their signal transduction have been found to mediate behavioral variability observed in aggression. Gene-gene and gene-environment interactions represent additional important risk factors for aggressiveness. Considering the social burden of pathological forms of aggression, more basic and translational studies should be conducted to accelerate applications to clinical practice, justice courts, and policy making.
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21
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Mentis AFA, Dardiotis E, Katsouni E, Chrousos GP. From warrior genes to translational solutions: novel insights into monoamine oxidases (MAOs) and aggression. Transl Psychiatry 2021; 11:130. [PMID: 33602896 PMCID: PMC7892552 DOI: 10.1038/s41398-021-01257-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 01/16/2021] [Accepted: 02/01/2021] [Indexed: 12/11/2022] Open
Abstract
The pervasive and frequently devastating nature of aggressive behavior calls for a collective effort to understand its psychosocial and neurobiological underpinnings. Regarding the latter, diverse brain areas, neural networks, neurotransmitters, hormones, and candidate genes have been associated with antisocial and aggressive behavior in humans and animals. This review focuses on the role of monoamine oxidases (MAOs) and the genes coding for them, in the modulation of aggression. During the past 20 years, a substantial number of studies using both pharmacological and genetic approaches have linked the MAO system with aggressive and impulsive behaviors in healthy and clinical populations, including the recent discovery of MAALIN, a long noncoding RNA (lncRNA) regulating the MAO-A gene in the human brain. Here, we first provide an overview of the MAOs and their physiological functions, we then summarize recent key findings linking MAO-related enzymatic and gene activity and aggressive behavior, and, finally, we offer novel insights into the mechanisms underlying this association. Using the existing experimental evidence as a foundation, we discuss the translational implications of these findings in clinical practice and highlight what we believe are outstanding conceptual and methodological questions in the field. Ultimately, we propose that unraveling the specific role of MAO in aggression requires an integrated approach, where this question is pursued by combining psychological, radiological, and genetic/genomic assessments. The translational benefits of such an approach include the discovery of novel biomarkers of aggression and targeting the MAO system to modulate pathological aggression in clinical populations.
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Affiliation(s)
- Alexios-Fotios A Mentis
- Public Health Laboratories, Hellenic Pasteur Institute, Vas. Sofias Avenue 127, 115 21, Athens, Greece
| | - Efthimios Dardiotis
- Department of Neurology, University of Thessaly, Panepistimiou 3, Viopolis, 41 500, Larissa, Greece
| | - Eleni Katsouni
- Department of Experimental Psychology, Oxford University, Oxford, UK
| | - George P Chrousos
- University Research Institute of Maternal and Child Health and Precision Medicine, National and Kapodistrian University of Athens, Medical School, Aghia Sophia Children's Hospital, Livadias 8, 115 27, Athens, Greece.
- UNESCO Chair on Adolescent Health Care, Athens, Greece.
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22
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Depressive Symptoms among Middle-Aged Women-Understanding the Cause. Brain Sci 2020; 11:brainsci11010026. [PMID: 33379297 PMCID: PMC7824332 DOI: 10.3390/brainsci11010026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/20/2020] [Accepted: 12/23/2020] [Indexed: 11/16/2022] Open
Abstract
Menopause is an important event in a woman’s life associated with hormonal changes that play a substantial role in the functioning of her body. A decline in the level of estrogens contributes to depressive symptoms and mood disorders during this period. The severity of depressive symptoms experienced by middle-aged women depends on many factors, including sociodemographic data (e.g., menopause, employment status, and marital status) and genetic variables (MAO-A and 5-HTT gene polymorphisms). In order to assess their influence on the development of depression in females, we analyzed 1453 healthy Polish women in different stages of menopause. Based on the results, we found that the l/l + l/s inheritance model for the 5-HTT gene polymorphism was more common in women without and with moderate depressive symptoms according to the Beck Depression Inventory (BDI), while the l/s model was more often observed in women with mild depression. Moreover, the overdominant 3/3 + 4/4 genotype of the MAO-A gene polymorphism was more often found in respondents without depressive symptoms, while women with depressive symptoms had more often the overdominant 3/4 genotype.
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23
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Kolla NJ, Bortolato M. The role of monoamine oxidase A in the neurobiology of aggressive, antisocial, and violent behavior: A tale of mice and men. Prog Neurobiol 2020; 194:101875. [PMID: 32574581 PMCID: PMC7609507 DOI: 10.1016/j.pneurobio.2020.101875] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 04/20/2020] [Accepted: 06/12/2020] [Indexed: 11/16/2022]
Abstract
Over the past two decades, research has revealed that genetic factors shape the propensity for aggressive, antisocial, and violent behavior. The best-documented gene implicated in aggression is MAOA (Monoamine oxidase A), which encodes the key enzyme for the degradation of serotonin and catecholamines. Congenital MAOA deficiency, as well as low-activity MAOA variants, has been associated with a higher risk for antisocial behavior (ASB) and violence, particularly in males with a history of child maltreatment. Indeed, the interplay between low MAOA genetic variants and early-life adversity is the best-documented gene × environment (G × E) interaction in the pathophysiology of aggression and ASB. Additional evidence indicates that low MAOA activity in the brain is strongly associated with a higher propensity for aggression; furthermore, MAOA inhibition may be one of the primary mechanisms whereby prenatal smoke exposure increases the risk of ASB. Complementary to these lines of evidence, mouse models of Maoa deficiency and G × E interactions exhibit striking similarities with clinical phenotypes, proving to be valuable tools to investigate the neurobiological mechanisms underlying antisocial and aggressive behavior. Here, we provide a comprehensive overview of the current state of the knowledge on the involvement of MAOA in aggression, as defined by preclinical and clinical evidence. In particular, we show how the convergence of human and animal research is proving helpful to our understanding of how MAOA influences antisocial and violent behavior and how it may assist in the development of preventative and therapeutic strategies for aggressive manifestations.
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Affiliation(s)
- Nathan J Kolla
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada; Centre for Addiction and Mental Health (CAMH) Research Imaging Centre, Toronto, ON, Canada; Violence Prevention Neurobiological Research Unit, CAMH, Toronto, ON, Canada; Waypoint Centre for Mental Health Care, Penetanguishene, ON, Canada; Translational Initiative on Antisocial Personality Disorder (TrIAD); Program of Research on Violence Etiology, Neurobiology, and Treatment (PReVENT).
| | - Marco Bortolato
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Utah, Salt Lake City, UT, USA; Translational Initiative on Antisocial Personality Disorder (TrIAD); Program of Research on Violence Etiology, Neurobiology, and Treatment (PReVENT).
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24
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Vasa RA, Keefer A, McDonald RG, Hunsche MC, Kerns CM. A Scoping Review of Anxiety in Young Children with Autism Spectrum Disorder. Autism Res 2020; 13:2038-2057. [PMID: 32978905 DOI: 10.1002/aur.2395] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/31/2020] [Accepted: 08/27/2020] [Indexed: 12/24/2022]
Abstract
Research on anxiety in children and adolescents with autism spectrum disorder (ASD) has burgeoned in the past 15 years. Most of the research has focused on school-age children, ages 6 to 18 years. Yet, recent studies suggest that anxiety can emerge in young children, under 6 years, with ASD. This scoping review synthesized the literature on anxiety in young children with ASD. Three domains of anxiety research were reviewed: (a) prevalence/severity, phenomenology, and course; (b) correlates; and (c) treatment. Four online databases were searched from the start of the database until March 2020. Keywords pertaining to anxiety, autism, and young children were entered. The search identified 44 articles for inclusion. These studies varied with respect to sample source, informants, and measures to assess anxiety. The overall prevalence of anxiety ranged from 1.6 to 62%. Sixteen of 17 studies found that young children with ASD had higher levels of anxiety compared to various control groups. A variety of DSM anxiety symptoms and disorders were present in young children with the most common symptoms being specific, social, and generalized fears. Correlates of anxiety included sensory over-responsivity, sleep disturbance, aggression/defiance, and attention deficit/hyperactivity disorder. Three cognitive behavioral treatment studies for anxiety and one developmental intervention targeting ASD symptoms showed promise in reducing anxiety. Findings indicate an early emergence of anxiety in some children with ASD. Further research on the measurement, pathophysiology, and treatment of anxiety in early childhood is critical to improving outcomes in children with ASD. LAY SUMMARY: This scoping review synthesizes the literature on anxiety in young children with autism spectrum disorder (ASD). Results indicate that children with ASD have higher levels of anxiety than children without ASD. Potential factors that could be contributing to anxiety include sensory, sleep, and behavioral problems. Preliminary studies show that anxiety can improve with cognitive behavioral treatment. These findings suggest that research on anxiety in young children with ASD should be prioritized to improve mental health outcomes.
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Affiliation(s)
- Roma A Vasa
- Center for Autism and Related Disorders, Kennedy Krieger Institute, Baltimore, Maryland, USA.,Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Amy Keefer
- Center for Autism and Related Disorders, Kennedy Krieger Institute, Baltimore, Maryland, USA.,Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Rachel G McDonald
- Center for Autism and Related Disorders, Kennedy Krieger Institute, Baltimore, Maryland, USA
| | - Michelle C Hunsche
- Department of Psychology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Connor M Kerns
- Department of Psychology, University of British Columbia, Vancouver, British Columbia, Canada
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25
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Monoamine oxidase polymorphisms in rhesus and Japanese macaques (Macaca mulatta and M. fuscata). J Chem Neuroanat 2020; 103:101726. [DOI: 10.1016/j.jchemneu.2019.101726] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 11/12/2019] [Accepted: 11/14/2019] [Indexed: 12/31/2022]
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26
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Oshchepkov D, Ponomarenko M, Klimova N, Chadaeva I, Bragin A, Sharypova E, Shikhevich S, Kozhemyakina R. A Rat Model of Human Behavior Provides Evidence of Natural Selection Against Underexpression of Aggressiveness-Related Genes in Humans. Front Genet 2019; 10:1267. [PMID: 31921305 PMCID: PMC6923764 DOI: 10.3389/fgene.2019.01267] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 11/18/2019] [Indexed: 01/17/2023] Open
Abstract
Aggressiveness is a hereditary behavioral pattern that forms a social hierarchy and affects the individual social rank and accordingly quality and duration of life. Thus, genome-wide studies of human aggressiveness are important. Nonetheless, the aggressiveness-related genome-wide studies have been conducted on animals rather than humans. Recently, in our genome-wide study, we uncovered natural selection against underexpression of human aggressiveness-related genes and proved it using F1 hybrid mice. Simultaneously, this natural selection equally supports two opposing traits in humans (dominance and subordination) as if self-domestication could have happened with its disruptive natural selection. Because there is still not enough scientific evidence that this could happen, here, we verified this natural selection pattern using quantitative PCR and two outbred rat lines (70 generations of artificial selection for aggressiveness or tameness, hereinafter: domestication). We chose seven genes—Cacna2d3, Gad2, Gria2, Mapk1, Nos1, Pomc, and Syn1—over- or underexpression of which corresponds to aggressive or domesticated behavior (in humans or mice) that has the same direction as natural selection. Comparing aggressive male rats with domesticated ones, we found that these genes are overexpressed statistically significantly in the hypothalamus (as a universal behavior regulator), not in the periaqueductal gray, where there was no aggressiveness-related expression of the genes in males. Database STRING showed statistically significant associations of the human genes homologous to these rat genes with long-term depression, circadian entrainment, Alzheimer’s disease, and the central nervous system disorders during chronic IL-6 overexpression. This finding more likely supports positive perspectives of further studies on self-domestication syndromes.
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Affiliation(s)
- Dmitry Oshchepkov
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
| | - Mikhail Ponomarenko
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia.,Natural Science Department, Novosibirsk State University, Novosibirsk, Russia
| | - Natalya Klimova
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
| | - Irina Chadaeva
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia.,Natural Science Department, Novosibirsk State University, Novosibirsk, Russia
| | - Anatoly Bragin
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
| | - Ekaterina Sharypova
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia.,Natural Science Department, Novosibirsk State University, Novosibirsk, Russia
| | - Svetlana Shikhevich
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
| | - Rimma Kozhemyakina
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia.,Natural Science Department, Novosibirsk State University, Novosibirsk, Russia
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27
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Rodríguez-Ramos Á, Moriana JA, García-Torres F, Ruiz-Rubio M. Emotional stability is associated with the MAOA promoter uVNTR polymorphism in women. Brain Behav 2019; 9:e01376. [PMID: 31448578 PMCID: PMC6749489 DOI: 10.1002/brb3.1376] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 07/08/2019] [Accepted: 07/11/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Neuroticism is associated with low emotional stability, and it is characterized by a tendency to perceive ordinary situations as threatening and difficult to manage. This personality trait has been associated with psychological distress and predicts some mental disorders. Previous studies have shown that women tend to be more neurotic than men and, in general, females have also a higher incidence of anxious and depressive disorders. METHODS We analyzed in a sample of 99 female university students (from 18 to 26 years old) if emotional stability, measured using the Big Five Questionnaire, was linked to polymorphic variants in candidate genes related to dopaminergic and serotonergic systems, and other personality variables. RESULTS We found that emotional stability and its subdimensions are genetically associated with MAOA-uVNTR polymorphism. Thus, women carriers of the 3-repeat allele (lower MAO-A expression) showed higher levels of emotional stability. No associations were found with other polymorphisms analyzed, including COMT Val158 Met, 5-HTTLPR, and DAT 3'UTR VNTR. Furthermore, our results showed a negative correlation between emotional stability and depression, state anxiety, and trait anxiety. In fact, MAOA-uVNTR and trait anxiety also explained emotional stability and its subdimensions. We also found that other genetic characteristic, phenylthiocarbamide tasting, explained impulsivity, specifically tasters controlled impulses better than nontasters. CONCLUSION Our results indicate that neuroticism might be regulated by MAOA and could be a common factor between different phenotypes, such as aggressive behaviors or personality disorders, observed in women with higher activity genotype who had been exposed to negative environments during childhood. This study could lead to a better understanding of the basis of emotional stability and could lead to future projects for this purpose.
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Affiliation(s)
- Ángel Rodríguez-Ramos
- Department of Genetics, University of Córdoba, Córdoba, Spain.,Department of Psychology, University of Córdoba, Córdoba, Spain.,Maimónides Biomedical Research Institute of Córdoba (IMIBIC), Córdoba, Spain.,University Hospital Reina Sofía of Córdoba, Córdoba, Spain
| | - Juan Antonio Moriana
- Department of Psychology, University of Córdoba, Córdoba, Spain.,Maimónides Biomedical Research Institute of Córdoba (IMIBIC), Córdoba, Spain.,University Hospital Reina Sofía of Córdoba, Córdoba, Spain
| | - Francisco García-Torres
- Department of Psychology, University of Córdoba, Córdoba, Spain.,Maimónides Biomedical Research Institute of Córdoba (IMIBIC), Córdoba, Spain.,University Hospital Reina Sofía of Córdoba, Córdoba, Spain
| | - Manuel Ruiz-Rubio
- Department of Genetics, University of Córdoba, Córdoba, Spain.,Maimónides Biomedical Research Institute of Córdoba (IMIBIC), Córdoba, Spain.,University Hospital Reina Sofía of Córdoba, Córdoba, Spain
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28
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Di Paolo ML, Christodoulou MS, Calogero AM, Pinzi L, Rastelli G, Passarella D, Cappelletti G, Dalla Via L. 2-Phenyloxazole-4-carboxamide as a Scaffold for Selective Inhibition of Human Monoamine Oxidase B. ChemMedChem 2019; 14:1641-1652. [PMID: 31322823 DOI: 10.1002/cmdc.201900261] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 07/15/2019] [Indexed: 12/21/2022]
Abstract
A series of 2-phenyloxazoles bearing an amide group at position 4 were designed and synthesized for evaluation as potential inhibitors of human recombinant monoamine oxidases (hrMAOs). Results of kinetics experiments demonstrated that all compounds behave as competitive MAO inhibitors, with good selectivity toward the MAO-B isoform. The most potent and selective derivatives are characterized by inhibition constant (Ki ) values in the sub-micromolar range and a good selectivity index (Ki MAO-A /Ki MAO-B >50). Some derivatives were also found to be able to inhibit MAO activity in nerve growth factor (NGF)-differentiated PC12 cells, taken as a model of neuronal cells. In particular, 2-(2-hydroxyphenyl)-N-phenyloxazole-4-carboxamide (compound 4 a) may be a promising new scaffold, exerting the highest selectivity and inhibitory effect toward MAOs in NGF-differentiated PC12 cell lysates, without compromising cell viability. Molecular docking analysis allowed a rationalization of the experimentally observed binding affinity and selectivity.
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Affiliation(s)
- Maria L Di Paolo
- Dipartimento di Medicina Molecolare, Università degli Studi di Padova, Via G. Colombo 3, 35131, Padova, Italy
| | - Michael S Christodoulou
- DISFARM, Sezione di Chimica Generale e Organica "A. Marchesini", Università degli Studi di Milano, via Venezian 21, 20133, Milano, Italy
| | - Alessandra M Calogero
- Dipartimento di Bioscienze, Università degli Studi di Milano, via Celoria 26, 20133, Milano, Italy
| | - Luca Pinzi
- Dipartimento di Scienze della Vita, Università degli Studi di Modena e Reggio Emilia, via Campi 103, 41125, Modena, Italy
| | - Giulio Rastelli
- Dipartimento di Scienze della Vita, Università degli Studi di Modena e Reggio Emilia, via Campi 103, 41125, Modena, Italy
| | - Daniele Passarella
- Dipartimento di Chimica, Università degli Studi di Milano, via C. Golgi 19, 20133, Milano, Italy
| | - Graziella Cappelletti
- Dipartimento di Bioscienze, Università degli Studi di Milano, via Celoria 26, 20133, Milano, Italy
| | - Lisa Dalla Via
- Dipartimento di Scienze del Farmaco, Università degli Studi di Padova, Via F. Marzolo 5, 35131, Padova, Italy
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29
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No Association between the rs1799836 Polymorphism of the Monoamine Oxidase B Gene and the Risk of Autism Spectrum Disorders in the Kazakhstani Population. DISEASE MARKERS 2019; 2019:2846394. [PMID: 31275445 PMCID: PMC6589232 DOI: 10.1155/2019/2846394] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 04/29/2019] [Accepted: 05/12/2019] [Indexed: 11/18/2022]
Abstract
Autism spectrum disorders (ASDs) are heterogeneous diseases that are triggered by a number of environmental and genetic factors. The aim of the current study was to investigate an association of the rs1799836 genetic variant of the neurotransmitter-related gene MAOB with ASDs. In total, 262 patients diagnosed with ASDs and their 126 healthy siblings were included in the present study. All individuals represented a Kazakhstani population. The distributions of the rs1799836 genotype were in accordance with the Hardy-Weinberg equilibrium among both cases and controls. No statistically significant differences were found in the allelic distributions of this polymorphism between ASD and control subjects (A/G: for males OR = 1.11, 95% 0.59-2.06, p = 0.75; for females OR = 1.14, 95% 0.70-1.86, p = 0.76). However, the increased score in the overall CARS was significantly associated with the A allele of rs1799836 MAOB for females (OR = 2.31, 95% 1.06-5.04, p = 0.03). The obtained results suggest that the rs1799836 polymorphism of the MAOB gene may have little contribution to the development of ASDs but may be involved in pathways contributing to ASD symptom severity in females. Further large-scale investigations are required to uncover possible relationships between rs1799836 MAOB and ASD progression in a gender-specific manner and their possible application as a therapeutic target.
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Arige V, Agarwal A, Khan AA, Kalyani A, Natarajan B, Gupta V, Reddy SS, Barthwal MK, Mahapatra NR. Regulation of Monoamine Oxidase B Gene Expression: Key Roles for Transcription Factors Sp1, Egr1 and CREB, and microRNAs miR-300 and miR-1224. J Mol Biol 2019; 431:1127-1147. [PMID: 30738894 DOI: 10.1016/j.jmb.2019.01.042] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 01/18/2019] [Accepted: 01/29/2019] [Indexed: 11/15/2022]
Abstract
Monoamine oxidase B (MAO-B), a flavoenzyme located in the outer mitochondrial membrane, is involved in the catabolism of monoamines. Altered levels of MAO-B are associated with cardiovascular/neuronal diseases. However, molecular mechanisms of MAO-B gene regulation are partially understood. We undertook a systematic analysis of the MAO-B gene to identify the key transcriptional/post-transcriptional regulatory molecules. Expression of MAO-B promoter-reporter constructs in cultured cells identified the -144/+25-bp domain as the core promoter region. Stringent in silico analysis of this core promoter predicted binding sites for several transcription factors. Over-expression/down-regulation of transcription factors Sp1/Egr1/CREB increased/decreased the MAO-B promoter-reporter activity and endogenous MAO-B protein level. Electrophoretic mobility shift assays and ChIP assays provided evidence for interactions of Sp1/Egr1/CREB with the MAO-B promoter. MAOB transcript level also positively correlated with the transcript level of Sp1/Egr1/CREB in various human tissue samples. Computational predictions using multiple algorithms coupled with systematic functional analysis revealed direct interactions of the microRNAs miR-1224 and miR-300 with MAO-B 3'-UTR. Dopamine dose-dependently enhanced MAO-B transcript and protein levels via increased binding of CREB to MAO-B promoter and reduced miR-1224/miR-300 levels. 8-Bromo-cAMP and forskolin augmented MAO-B expression, whereas inhibition of PKA diminished the gene expression suggesting involvement of cAMP-PKA axis. Interestingly, Sp1/Egr1/CREB/miR-1224 levels correlate with MAO-B expression in rodent models of hypertension/MPTP-induced neurodegeneration, indicating their roles in governing MAO-B gene expression in these disease states. Taken together, this study elucidates the previously unknown roles of the transcription factors Sp1/Egr1/CREB and microRNAs miR-1224/miR-300 in regulating MAO-B gene expression under basal/disease states involving dysregulated catecholamine levels.
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Affiliation(s)
- Vikas Arige
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
| | - Anshu Agarwal
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
| | - Abrar A Khan
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
| | - Ananthamohan Kalyani
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
| | - Bhargavi Natarajan
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
| | - Vinayak Gupta
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
| | - S Santosh Reddy
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India; Academy of Scientific and Innovative Research (AcSIR), New Delhi 110025, India
| | - Manoj K Barthwal
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Nitish R Mahapatra
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India.
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Godar SC, Mosher LJ, Scheggi S, Devoto P, Moench KM, Strathman HJ, Jones CM, Frau R, Melis M, Gambarana C, Wilkinson B, DeMontis MG, Fowler SC, Coba MP, Wellman CL, Shih JC, Bortolato M. Gene-environment interactions in antisocial behavior are mediated by early-life 5-HT 2A receptor activation. Neuropharmacology 2019; 159:107513. [PMID: 30716416 DOI: 10.1016/j.neuropharm.2019.01.028] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 01/14/2019] [Accepted: 01/25/2019] [Indexed: 12/29/2022]
Abstract
The ontogeny of antisocial behavior (ASB) is rooted in complex gene-environment (G×E) interactions. The best-characterized of these interplays occurs between: a) low-activity alleles of the gene encoding monoamine oxidase A (MAOA), the main serotonin-degrading enzyme; and b) child maltreatment. The purpose of this study was to develop the first animal model of this G×E interaction, to help understand the neurobiological mechanisms of ASB and identify novel targets for its therapy. Maoa hypomorphic transgenic mice were exposed to an early-life stress regimen consisting of maternal separation and daily intraperitoneal saline injections and were then compared with their wild-type and non-stressed controls for ASB-related neurobehavioral phenotypes. Maoa hypomorphic mice subjected to stress from postnatal day (PND) 1 through 7 - but not during the second postnatal week - developed overt aggression, social deficits and abnormal stress responses from the fourth week onwards. On PND 8, these mice exhibited low resting heart rate - a well-established premorbid sign of ASB - and a significant and selective up-regulation of serotonin 5-HT2A receptors in the prefrontal cortex. Notably, both aggression and neonatal bradycardia were rescued by the 5-HT2 receptor antagonist ketanserin (1-3 mg kg-1, IP), as well as the selective 5-HT2A receptor blocker MDL-100,907 (volinanserin, 0.1-0.3 mg kg-1, IP) throughout the first postnatal week. These findings provide the first evidence of a molecular basis of G×E interactions in ASB and point to early-life 5-HT2A receptor activation as a key mechanism for the ontogeny of this condition. This article is part of the Special Issue entitled 'The neuropharmacology of social behavior: from bench to bedside'.
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Affiliation(s)
- Sean C Godar
- Dept. of Pharmacology and Toxicology, University of Utah, Salt Lake City, UT, USA; Consortium for Translational Research on Aggression and Drug Abuse (ConTRADA), University of Kansas, Lawrence, KS, USA
| | - Laura J Mosher
- Dept. of Pharmacology and Toxicology, University of Utah, Salt Lake City, UT, USA; Dept. of Pharmacology and Toxicology, University of Kansas, Lawrence, KS, USA
| | - Simona Scheggi
- Dept. of Pharmacology and Toxicology, University of Utah, Salt Lake City, UT, USA; Dept. of Molecular and Developmental Medicine, University of Siena, Italy
| | - Paola Devoto
- Dept. of Biomedical Sciences, Section of Neuroscience, UNICA, Monserrato, Italy
| | - Kelly M Moench
- Dept. of Psychological and Brain Sciences, Program in Neural Science and Center for the Integrative Study of Animal Behavior, Indiana University, Bloomington, IN, USA
| | - Hunter J Strathman
- Dept. of Pharmacology and Toxicology, University of Utah, Salt Lake City, UT, USA; Dept. of Pharmacology and Toxicology, University of Kansas, Lawrence, KS, USA
| | - Cori M Jones
- Dept. of Pharmacology and Toxicology, University of Kansas, Lawrence, KS, USA
| | - Roberto Frau
- Dept. of Biomedical Sciences, Section of Neuroscience, UNICA, Monserrato, Italy
| | - Miriam Melis
- Dept. of Biomedical Sciences, Section of Neuroscience, UNICA, Monserrato, Italy
| | - Carla Gambarana
- Dept. of Molecular and Developmental Medicine, University of Siena, Italy
| | - Brent Wilkinson
- Zilkha Neurogenetic Institute and Dept. of Psychiatry and Behavioral Sciences, University of Southern California, Los Angeles, CA, USA
| | | | - Stephen C Fowler
- Dept. of Pharmacology and Toxicology, University of Kansas, Lawrence, KS, USA
| | - Marcelo P Coba
- Zilkha Neurogenetic Institute and Dept. of Psychiatry and Behavioral Sciences, University of Southern California, Los Angeles, CA, USA
| | - Cara L Wellman
- Dept. of Psychological and Brain Sciences, Program in Neural Science and Center for the Integrative Study of Animal Behavior, Indiana University, Bloomington, IN, USA
| | - Jean C Shih
- Depts. of Pharmacology and Pharmaceutical Sciences and Integrated Anatomic Sciences, University of Southern California, Los Angeles, CA, USA
| | - Marco Bortolato
- Dept. of Pharmacology and Toxicology, University of Utah, Salt Lake City, UT, USA; Consortium for Translational Research on Aggression and Drug Abuse (ConTRADA), University of Kansas, Lawrence, KS, USA.
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Béroule DG. Offline encoding impaired by epigenetic regulations of monoamines in the guided propagation model of autism. BMC Neurosci 2018; 19:80. [PMID: 30558545 PMCID: PMC6298000 DOI: 10.1186/s12868-018-0477-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 11/26/2018] [Indexed: 12/18/2022] Open
Abstract
Background
Environmental factors can modify the expression of genes, including those involved in the metabolism of neurotransmitters. Accounting for a control role of monoamine neurotransmitters, the guided propagation (GP) memory model may contribute to investigate the consequences of neuromodulation impairments on development disorders such as autism. A prenatal transient excess of ‘monoamine oxidase A’ enzyme is assumed here to trigger persistent epigenetic regulations that would induce imbalanced metabolisms of synaptic monoamines. When imported into the ‘offline’ encoding cycles of a GP model, the consequent ‘serotoninergic noise’ leads to aberrant memory structures that can be linked with autism symptoms. Results In computer experiments, different levels of uncoupling between representations of monoamines correlate with the amount of impaired GP modules, the severity of irrelevant connections, as well as network overgrowth. Two types of faulty connections are respectively assumed to underlie autism traits, namely repetitive behavior and perceptual oversensitivity. Besides computational modelling, a genetic family-tree shows how the autism sex-ratio can result from combinations of pharmacological and epigenetic features. Conclusions These results suggest that the current rise of autism is favored by three possible sources of biological masking: (1) during sleep, when cyclic variations of monoamines may undergo disrupted enzymatic activities; (2) across generations of ‘healthy carriers’ protected by the X-chromosome silencing and a specific genetic variant; (3) early in life, as long as the brain development draws on pools of neurons born when the transient enzymatic excess and its persistent epigenetic regulation overlapped, and as long as the B type of monoamine oxidase does not significantly impact dopamine. A disease-modifying therapy can be derived from this study, which involves relevant biomarkers to be first monitored over several months of clinical trial. Electronic supplementary material The online version of this article (10.1186/s12868-018-0477-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Dominique G Béroule
- LIMSI (Computer Sciences Laboratory for Mechanics and Engineering Sciences), CNRS, rue John Von Neumann, Campus Universitaire d'Orsay - Bâtiment 508, 91403, Orsay Cedex, France. .,CRIIGEN Scientific Council (Committee for Independent Research and Information on Genetic Engineering), 42 rue de Lisbonne, 75008, Paris, France.
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Matthews AM, Blydt-Hansen I, Al-Jabri B, Andersen J, Tarailo-Graovac M, Price M, Selby K, Demos M, Connolly M, Drögemoller B, Shyr C, Mwenifumbo J, Elliott AM, Lee J, Ghani A, Stöckler S, Salvarinova R, Vallance H, Sinclair G, Ross CJ, Wasserman WW, McKinnon ML, Horvath GA, Goez H, van Karnebeek CD. Atypical cerebral palsy: genomics analysis enables precision medicine. Genet Med 2018; 21:1621-1628. [DOI: 10.1038/s41436-018-0376-y] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 11/08/2018] [Indexed: 11/09/2022] Open
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Monoamine oxidase isoenzymes: genes, functions and targets for behavior and cancer therapy. J Neural Transm (Vienna) 2018; 125:1553-1566. [PMID: 30259128 DOI: 10.1007/s00702-018-1927-8] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 09/12/2018] [Indexed: 01/01/2023]
Abstract
Monoamine oxidase (MAO) catalyzes the oxidative deamination of monoamine neurotransmitters and dietary amines. Two pharmacological types with different substrate and inhibitor specificities were reported. Molecular cloning revealed that the two types of MAO were different genes expressed as different proteins with different functions. MAO A and B have identical intron-exon organization derived by duplication of a common ancestral gene thus they are termed isoenzymes. MAO A knockout mice exhibited aggression, the first clear evidence linking genes to behavior. MAO A KO mice exhibited autistic-like behaviors which could be prevented by reducing serotonin levels at an early developmental age (P1-P7) providing potential therapy. MAO B KO mice were non-aggressive and resistant to Parkinsongenic neurotoxin. More recently it was found that MAO A is overexpressed in prostate cancer and correlates with degree of malignancy. The oncogenic mechanism involves a ROS-activated AKT/FOXO1/TWIST1 signaling pathway. Deletion of MAO A reduced prostate cancer stem cells and suppressed invasive adenocarcinoma. MAO A was also overexpressed in classical Hodgkin lymphoma and glioma brain tumors. MAO B was overexpressed in glioma and non-small cell lung cancer. MAO A inhibitors reduce the growth of prostate cancer, drug sensitive and resistant gliomas and classical Hodgkin lymphoma, and enhance standard chemotherapy. Currently, we are developing NIR dye-conjugated clorgyline (MAO A inhibitor) as a novel dual therapeutic/diagnostic agent for cancer. A phase II clinical trial of MAO inhibitor for biochemical recurrent prostate cancer is ongoing. The role of MAO A and B in several cancer types opens new avenues for cancer therapies.
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