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Sonthalia S, Li G, Blanco XM, Casella A, Liu J, Stein-O’Brien G, Caffo B, Adkins RS, Orvis J, Hertzano R, Mahurkar A, Gillis J, Werner J, Ma S, Micali N, Sestan N, Rakic P, Santpere G, Ament SA, Colantuoni C. in silico transcriptome dissection of neocortical excitatory neurogenesis via joint matrix decomposition and transfer learning. bioRxiv 2024:2024.02.26.581612. [PMID: 38464021 PMCID: PMC10925183 DOI: 10.1101/2024.02.26.581612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
The rising quality and amount of multi-omic data across biomedical science demands that we build innovative solutions to harness their collective discovery potential. From publicly available repositories, we have assembled and curated a compendium of gene-level transcriptomic data focused on mammalian excitatory neurogenesis in the neocortex. This collection is open for exploration by both computational and cell biologists at nemoanalytics.org, and this report forms a demonstration of its utility. Applying our novel structured joint decomposition approach to mouse, macaque and human data from the collection, we define transcriptome dynamics that are conserved across mammalian excitatory neurogenesis and which map onto the genetics of human brain structure and disease. Leveraging additional data within NeMO Analytics via projection methods, we chart the dynamics of these fundamental molecular elements of neurogenesis across developmental time and space and into postnatal life. Reversing the direction of our investigation, we use transcriptomic data from laminar-specific dissection of adult human neocortex to define molecular signatures specific to excitatory neuronal cell types resident in individual layers of the mature neocortex, and trace their emergence across development. We show that while many lineage defining transcription factors are most highly expressed at early fetal ages, the laminar neuronal identities which they drive take years to decades to reach full maturity. Finally, we interrogated data from stem-cell derived cerebral organoid systems demonstrating that many fundamental elements of in vivo development are recapitulated with high-fidelity in vitro, while specific transcriptomic programs in neuronal maturation are absent. We propose these analyses as specific applications of the general approach of combining joint decomposition with large curated collections of analysis-ready multi-omics data matrices focused on particular cell and disease contexts. Importantly, these open environments are accessible to, and must be fueled with emerging data by, cell biologists with and without coding expertise.
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Affiliation(s)
- Shreyash Sonthalia
- Depts. of Neurology, Neuroscience and Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Guangyan Li
- Depts. of Neurology, Neuroscience and Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD, USA
- Dept. of Biostatistics, Johns Hopkins School of Public Health, Baltimore, MD, USA
| | - Xoel Mato Blanco
- Department of Medicine and Life Sciences, Universitat Pompeu Fabra, Barcelona, Catalonia, Spain
- Hospital del Mar Research Institute, Parc de Recerca Biomèdica de Barcelona, Catalonia, Spain
| | - Alex Casella
- University of Maryland, Institute for Genome Sciences, Baltimore, MD, USA
- Medical Scientist Training Program, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Jinrui Liu
- Depts. of Neurology, Neuroscience and Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Genevieve Stein-O’Brien
- Depts. of Neurology, Neuroscience and Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Brian Caffo
- Dept. of Biostatistics, Johns Hopkins School of Public Health, Baltimore, MD, USA
| | - Ricky S. Adkins
- University of Maryland, Institute for Genome Sciences, Baltimore, MD, USA
| | - Joshua Orvis
- University of Maryland, Institute for Genome Sciences, Baltimore, MD, USA
| | - Ronna Hertzano
- Neurotology Branch, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, MD, USA
| | - Anup Mahurkar
- University of Maryland, Institute for Genome Sciences, Baltimore, MD, USA
| | | | | | | | | | | | | | - Gabriel Santpere
- Hospital del Mar Research Institute, Parc de Recerca Biomèdica de Barcelona, Catalonia, Spain
| | - Seth A. Ament
- University of Maryland, Institute for Genome Sciences, Baltimore, MD, USA
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
- UM-MIND Institute for Neuroscience Discovery, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Carlo Colantuoni
- Depts. of Neurology, Neuroscience and Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD, USA
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Micali N, Ma S, Li M, Kim SK, Mato-Blanco X, Sindhu SK, Arellano JI, Gao T, Shibata M, Gobeske KT, Duque A, Santpere G, Sestan N, Rakic P. Molecular programs of regional specification and neural stem cell fate progression in macaque telencephalon. Science 2023; 382:eadf3786. [PMID: 37824652 DOI: 10.1126/science.adf3786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 07/30/2023] [Indexed: 10/14/2023]
Abstract
During early telencephalic development, intricate processes of regional patterning and neural stem cell (NSC) fate specification take place. However, our understanding of these processes in primates, including both conserved and species-specific features, remains limited. Here, we profiled 761,529 single-cell transcriptomes from multiple regions of the prenatal macaque telencephalon. We deciphered the molecular programs of the early organizing centers and their cross-talk with NSCs, revealing primate-biased galanin-like peptide (GALP) signaling in the anteroventral telencephalon. Regional transcriptomic variations were observed along the frontotemporal axis during early stages of neocortical NSC progression and in neurons and astrocytes. Additionally, we found that genes associated with neuropsychiatric disorders and brain cancer risk might play critical roles in the early telencephalic organizers and during NSC progression.
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Affiliation(s)
- Nicola Micali
- Department of Neuroscience, Yale School of Medicine, New Haven, CT 06520, USA
| | - Shaojie Ma
- Department of Neuroscience, Yale School of Medicine, New Haven, CT 06520, USA
| | - Mingfeng Li
- Department of Neuroscience, Yale School of Medicine, New Haven, CT 06520, USA
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, 430030, Wuhan, China
| | - Suel-Kee Kim
- Department of Neuroscience, Yale School of Medicine, New Haven, CT 06520, USA
| | - Xoel Mato-Blanco
- Hospital del Mar Research Institute, Parc de Recerca Biomèdica de Barcelona (PRBB), 08003 Barcelona, Catalonia, Spain
| | | | - Jon I Arellano
- Department of Neuroscience, Yale School of Medicine, New Haven, CT 06520, USA
| | - Tianliuyun Gao
- Department of Neuroscience, Yale School of Medicine, New Haven, CT 06520, USA
| | - Mikihito Shibata
- Department of Neuroscience, Yale School of Medicine, New Haven, CT 06520, USA
| | - Kevin T Gobeske
- Department of Neuroscience, Yale School of Medicine, New Haven, CT 06520, USA
| | - Alvaro Duque
- Department of Neuroscience, Yale School of Medicine, New Haven, CT 06520, USA
| | - Gabriel Santpere
- Hospital del Mar Research Institute, Parc de Recerca Biomèdica de Barcelona (PRBB), 08003 Barcelona, Catalonia, Spain
| | - Nenad Sestan
- Department of Neuroscience, Yale School of Medicine, New Haven, CT 06520, USA
- Departments of Psychiatry, Genetics and Comparative Medicine, Wu Tsai Institute, Program in Cellular Neuroscience, Neurodegeneration and Repair, and Yale Child Study Center, Yale School of Medicine, New Haven, CT 06510, USA
- Kavli Institute for Neuroscience, Yale School of Medicine, New Haven, CT 06520, USA
| | - Pasko Rakic
- Department of Neuroscience, Yale School of Medicine, New Haven, CT 06520, USA
- Kavli Institute for Neuroscience, Yale School of Medicine, New Haven, CT 06520, USA
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Abstract
Eating Disorders are common psychiatric disorders, and their occurrence is not rare in pregnancy. The aim of this presentation will be to provide an overview of eating disorders in pregnancy. I will first cover prevalence and nature of eating disorders and their symptoms in pregnancy. I will present quantitative and qualitative data from my own research. I will then present research on the effects of eating disorders on pregnancy and obstetric outcomes. I will conclude discussing issues around identification of eating disorders in pregnancy; in particular research from my lab on gaps in identification, and how to improve identification of eating disorders in pregnancy.
Disclosure
No significant relationships.
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Micali N, Kim SK, Diaz-Bustamante M, Stein-O'Brien G, Seo S, Shin JH, Rash BG, Ma S, Wang Y, Olivares NA, Arellano JI, Maynard KR, Fertig EJ, Cross AJ, Bürli RW, Brandon NJ, Weinberger DR, Chenoweth JG, Hoeppner DJ, Sestan N, Rakic P, Colantuoni C, McKay RD. Variation of Human Neural Stem Cells Generating Organizer States In Vitro before Committing to Cortical Excitatory or Inhibitory Neuronal Fates. Cell Rep 2021; 31:107599. [PMID: 32375049 PMCID: PMC7357345 DOI: 10.1016/j.celrep.2020.107599] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 10/22/2019] [Accepted: 04/10/2020] [Indexed: 11/06/2022] Open
Abstract
Better understanding of the progression of neural stem cells (NSCs) in the developing cerebral cortex is important for modeling neurogenesis and defining the pathogenesis of neuropsychiatric disorders. Here, we use RNA sequencing, cell imaging, and lineage tracing of mouse and human in vitro NSCs and monkey brain sections to model the generation of cortical neuronal fates. We show that conserved signaling mechanisms regulate the acute transition from proliferative NSCs to committed glutamatergic excitatory neurons. As human telencephalic NSCs develop from pluripotency in vitro, they transition through organizer states that spatially pattern the cortex before generating glutamatergic precursor fates. NSCs derived from multiple human pluripotent lines vary in these early patterning states, leading differentially to dorsal or ventral telencephalic fates. This work furthers systematic analyses of the earliest patterning events that generate the major neuronal trajectories of the human telencephalon. Micali et al. report that human telencephalic NSCs in vitro transition through the organizer states that pattern the neocortex. Human pluripotent lines vary in organizer formation, generating divergent neuronal differentiation trajectories biased toward dorsal or ventral telencephalic fates and opening further analysis of the earliest cortical specification events.
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Affiliation(s)
- Nicola Micali
- Lieber Institute for Brain Development, 855 North Wolfe St., Baltimore, MD 21205, USA; Department of Neuroscience, Yale School of Medicine, New Haven, CT 06520, USA.
| | - Suel-Kee Kim
- Lieber Institute for Brain Development, 855 North Wolfe St., Baltimore, MD 21205, USA; Department of Neuroscience, Yale School of Medicine, New Haven, CT 06520, USA
| | | | - Genevieve Stein-O'Brien
- Lieber Institute for Brain Development, 855 North Wolfe St., Baltimore, MD 21205, USA; McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Seungmae Seo
- Lieber Institute for Brain Development, 855 North Wolfe St., Baltimore, MD 21205, USA
| | - Joo-Heon Shin
- Lieber Institute for Brain Development, 855 North Wolfe St., Baltimore, MD 21205, USA
| | - Brian G Rash
- Department of Neuroscience, Yale School of Medicine, New Haven, CT 06520, USA
| | - Shaojie Ma
- Departments of Comparative Medicine, Genetics, and Psychiatry, Yale School of Medicine, New Haven, CT 06520, USA
| | - Yanhong Wang
- Lieber Institute for Brain Development, 855 North Wolfe St., Baltimore, MD 21205, USA
| | - Nicolas A Olivares
- Lieber Institute for Brain Development, 855 North Wolfe St., Baltimore, MD 21205, USA
| | - Jon I Arellano
- Department of Neuroscience, Yale School of Medicine, New Haven, CT 06520, USA
| | - Kristen R Maynard
- Lieber Institute for Brain Development, 855 North Wolfe St., Baltimore, MD 21205, USA
| | - Elana J Fertig
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA; Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA; Department of Applied Mathematics and Statistics, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Alan J Cross
- AstraZeneca Neuroscience, IMED Biotech Unit, R&D, Boston, MA 024515, USA
| | - Roland W Bürli
- AstraZeneca Neuroscience, IMED Biotech Unit, R&D, Boston, MA 024515, USA
| | - Nicholas J Brandon
- AstraZeneca Neuroscience, IMED Biotech Unit, R&D, Boston, MA 024515, USA
| | - Daniel R Weinberger
- Lieber Institute for Brain Development, 855 North Wolfe St., Baltimore, MD 21205, USA; McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA; Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA; Department of Psychiatry, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA; Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Joshua G Chenoweth
- Lieber Institute for Brain Development, 855 North Wolfe St., Baltimore, MD 21205, USA
| | - Daniel J Hoeppner
- Lieber Institute for Brain Development, 855 North Wolfe St., Baltimore, MD 21205, USA; Astellas Research Institute of America, 3565 General Atomics Ct., Ste. 200, San Diego, CA 92121, USA
| | - Nenad Sestan
- Department of Neuroscience, Yale School of Medicine, New Haven, CT 06520, USA; Departments of Comparative Medicine, Genetics, and Psychiatry, Yale School of Medicine, New Haven, CT 06520, USA; Kavli Institute for Neuroscience, Yale School of Medicine, New Haven, CT 06520, USA
| | - Pasko Rakic
- Department of Neuroscience, Yale School of Medicine, New Haven, CT 06520, USA; Kavli Institute for Neuroscience, Yale School of Medicine, New Haven, CT 06520, USA.
| | - Carlo Colantuoni
- Lieber Institute for Brain Development, 855 North Wolfe St., Baltimore, MD 21205, USA; Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA; Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA; Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
| | - Ronald D McKay
- Lieber Institute for Brain Development, 855 North Wolfe St., Baltimore, MD 21205, USA.
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Dörsam A, Giel K, Preissl H, Micali N, Zipfel S. Untersuchung des Einflusses mütterlicher Essstörungen auf die kindliche Entwicklung – die Emkie-Studie. Geburtshilfe Frauenheilkd 2020. [DOI: 10.1055/s-0039-3402969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Affiliation(s)
- A Dörsam
- Psychosomatische Medizin und Psychotherapie, Universitätsklinikum Tübingen
| | - K Giel
- Psychosomatische Medizin und Psychotherapie, Universitätsklinikum Tübingen
| | - H Preissl
- Institut für Diabetesforschung und metabolische Erkrankungen, Tübingen
| | - N Micali
- Klinik für Psychiatrie, Medizinische Fakultät, Universität Genf
| | - S Zipfel
- Psychosomatische Medizin und Psychotherapie, Universitätsklinikum Tübingen
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6
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Burke EE, Chenoweth JG, Shin JH, Collado-Torres L, Kim SK, Micali N, Wang Y, Colantuoni C, Straub RE, Hoeppner DJ, Chen HY, Sellers A, Shibbani K, Hamersky GR, Diaz Bustamante M, Phan BN, Ulrich WS, Valencia C, Jaishankar A, Price AJ, Rajpurohit A, Semick SA, Bürli RW, Barrow JC, Hiler DJ, Page SC, Martinowich K, Hyde TM, Kleinman JE, Berman KF, Apud JA, Cross AJ, Brandon NJ, Weinberger DR, Maher BJ, McKay RDG, Jaffe AE. Dissecting transcriptomic signatures of neuronal differentiation and maturation using iPSCs. Nat Commun 2020; 11:462. [PMID: 31974374 PMCID: PMC6978526 DOI: 10.1038/s41467-019-14266-z] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 12/23/2019] [Indexed: 01/02/2023] Open
Abstract
Human induced pluripotent stem cells (hiPSCs) are a powerful model of neural differentiation and maturation. We present a hiPSC transcriptomics resource on corticogenesis from 5 iPSC donor and 13 subclonal lines across 9 time points over 5 broad conditions: self-renewal, early neuronal differentiation, neural precursor cells (NPCs), assembled rosettes, and differentiated neuronal cells. We identify widespread changes in the expression of both individual features and global patterns of transcription. We next demonstrate that co-culturing human NPCs with rodent astrocytes results in mutually synergistic maturation, and that cell type-specific expression data can be extracted using only sequencing read alignments without cell sorting. We lastly adapt a previously generated RNA deconvolution approach to single-cell expression data to estimate the relative neuronal maturity of iPSC-derived neuronal cultures and human brain tissue. Using many public datasets, we demonstrate neuronal cultures are maturationally heterogeneous but contain subsets of neurons more mature than previously observed.
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Affiliation(s)
- Emily E Burke
- Lieber Institute for Brain Development, Baltimore, MD, USA
| | | | - Joo Heon Shin
- Lieber Institute for Brain Development, Baltimore, MD, USA
| | | | - Suel-Kee Kim
- Lieber Institute for Brain Development, Baltimore, MD, USA
| | - Nicola Micali
- Lieber Institute for Brain Development, Baltimore, MD, USA
| | - Yanhong Wang
- Lieber Institute for Brain Development, Baltimore, MD, USA
| | | | | | | | - Huei-Ying Chen
- Lieber Institute for Brain Development, Baltimore, MD, USA
| | - Alana Sellers
- Lieber Institute for Brain Development, Baltimore, MD, USA
| | - Kamel Shibbani
- Lieber Institute for Brain Development, Baltimore, MD, USA
| | | | | | - BaDoi N Phan
- Lieber Institute for Brain Development, Baltimore, MD, USA
| | | | | | | | - Amanda J Price
- Lieber Institute for Brain Development, Baltimore, MD, USA.,McKusick Nathans Institute of Genetic Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | | | | | - Roland W Bürli
- Neuroscience, IMED Biotech Unit, AstraZeneca, Cambridge, UK
| | - James C Barrow
- Lieber Institute for Brain Development, Baltimore, MD, USA
| | - Daniel J Hiler
- Lieber Institute for Brain Development, Baltimore, MD, USA
| | | | - Keri Martinowich
- Lieber Institute for Brain Development, Baltimore, MD, USA.,Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA.,Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Thomas M Hyde
- Lieber Institute for Brain Development, Baltimore, MD, USA.,Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA.,Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Joel E Kleinman
- Lieber Institute for Brain Development, Baltimore, MD, USA.,Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Karen F Berman
- Clinical and Translational Neuroscience Branch, NIMH Intramural Research Program, Bethesda, MD, USA
| | - Jose A Apud
- Clinical and Translational Neuroscience Branch, NIMH Intramural Research Program, Bethesda, MD, USA
| | - Alan J Cross
- Neuroscience, IMED Biotech Unit, AstraZeneca, Boston, MA, USA
| | | | - Daniel R Weinberger
- Lieber Institute for Brain Development, Baltimore, MD, USA.,McKusick Nathans Institute of Genetic Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA.,Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA.,Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, MD, USA.,Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Brady J Maher
- Lieber Institute for Brain Development, Baltimore, MD, USA.,Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA.,Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | | | - Andrew E Jaffe
- Lieber Institute for Brain Development, Baltimore, MD, USA. .,McKusick Nathans Institute of Genetic Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA. .,Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA. .,Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, MD, USA. .,Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA. .,Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
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Rash BG, Duque A, Morozov YM, Arellano JI, Micali N, Rakic P. Gliogenesis in the outer subventricular zone promotes enlargement and gyrification of the primate cerebrum. Proc Natl Acad Sci U S A 2019; 116:7089-7094. [PMID: 30894491 PMCID: PMC6452694 DOI: 10.1073/pnas.1822169116] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The primate cerebrum is characterized by a large expansion of cortical surface area, the formation of convolutions, and extraordinarily voluminous subcortical white matter. It was recently proposed that this expansion is primarily driven by increased production of superficial neurons in the dramatically enlarged outer subventricular zone (oSVZ). Here, we examined the development of the parietal cerebrum in macaque monkey and found that, indeed, the oSVZ initially adds neurons to the superficial layers II and III, increasing their thickness. However, as the oSVZ grows in size, its output changes to production of astrocytes and oligodendrocytes, which in primates outnumber cerebral neurons by a factor of three. After the completion of neurogenesis around embryonic day (E) 90, when the cerebrum is still lissencephalic, the oSVZ enlarges and contains Pax6+/Hopx+ outer (basal) radial glial cells producing astrocytes and oligodendrocytes until after E125. Our data indicate that oSVZ gliogenesis, rather than neurogenesis, correlates with rapid enlargement of the cerebrum and development of convolutions, which occur concomitantly with the formation of cortical connections via the underlying white matter, in addition to neuronal growth, elaboration of dendrites, and amplification of neuropil in the cortex, which are primary factors in the formation of cerebral convolutions in primates.
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Affiliation(s)
- Brian G Rash
- Department of Neuroscience, Yale University, New Haven, CT 06520
| | - Alvaro Duque
- Department of Neuroscience, Yale University, New Haven, CT 06520
| | - Yury M Morozov
- Department of Neuroscience, Yale University, New Haven, CT 06520
| | - Jon I Arellano
- Department of Neuroscience, Yale University, New Haven, CT 06520
| | - Nicola Micali
- Department of Neuroscience, Yale University, New Haven, CT 06520
| | - Pasko Rakic
- Department of Neuroscience, Yale University, New Haven, CT 06520;
- Kavli Institute for Neuroscience at Yale, Yale University, New Haven, CT 06520
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8
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Frangou S, Micali N, Natalie R, Gaelle D, Bruce M. Effect of BMI on Resting-state Functional Architecture of the Brain in Healthy Individuals and Patients with Psychosis. Eur Psychiatry 2017. [DOI: 10.1016/j.eurpsy.2017.01.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Elevated body mass index (BMI) is associated with increased multi-morbidity and mortality. The investigation of the relationship between BMI and brain organization has the potential to provide new insights relevant to clinical and policy strategies for weight control. Here, we quantified the effect of BMI on the functional connectivity of the Default-Mode (DMN), Central Executive (CEN), Sensorimotor (SMN) and Visual (VN) networks in 496 healthy individuals that were studied as part of the Human Connectome Project. We found that elevated BMI was associated with disrupted functional integration of sensory-guided (SMN, VN) with internally controlled (DMN, CEN) networks, implicating increased attention to sensory stimuli as a possible mechanism underpinning overeating and weight gain. Our results suggest that weight control strategies should expand to include wider societal policies that incorporate modifications to eating environments and to the visual presentation and branding of food products.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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9
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Easter A, Taborelli E, Bye A, Zunszain PA, Pariante CM, Treasure J, Schmidt U, Micali N. Perinatal hypothalamic-pituitary-adrenal axis regulation among women with eating disorders and their infants. Psychoneuroendocrinology 2017; 76:127-134. [PMID: 27914245 DOI: 10.1016/j.psyneuen.2016.11.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 10/31/2016] [Accepted: 11/04/2016] [Indexed: 11/19/2022]
Abstract
BACKGROUND Psychiatric illness is associated with heightened hypothalamic-pituitary-adrenal (HPA) axis activity during pregnancy which may have long term effects on infant stress regulation. HPA axis regulation has not previously been investigated in women with eating disorders (ED) or their infants during the perinatal period. METHODS Women were recruited to a prospective longitudinal study in three groups: 1) current or active ED (C-ED=31), 2) past ED (P-ED=29) and healthy control (HC=57). Maternal psychopathology, diurnal cortisol levels, corticotropin-releasing hormone (CRH) and CRH binding protein (CRH-BP) were measured during the third trimester of pregnancy. At eight weeks postpartum infant cortisol was obtained before and after routine immunisations to determine infant hormonal response to a stressful situation. RESULTS Women with current ED had a significantly lower cortisol decline throughout the day compared to HC, in both adjusted and unadjusted analyses. Lower cortisol decline among women with a current ED were associated with higher levels of psychopathology during pregnancy. Women's cortisol awakening response, CRH and CRH-BP levels did not differ across the three groups. Infants' stress response was also significantly higher among those in the C-ED group, although this effect was attenuated after controlling for confounders. CONCLUSIONS During pregnancy women with ED have lower cortisol declines, suggestive of blunted diurnal cortisol rhythms. Postnatally, their infants also have a heightened response to stress. This is the first study to identify HPA axis dysfunction in pregnancy in women with ED, and to show an intergenerational effect. Since dysfunctions in HPA activity during childhood may represent a risk factor for psychological and physical health problems later in life, further investigation of the potential long-term implications of these findings is crucial.
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Affiliation(s)
- A Easter
- Behavioural and Brain Sciences Unit, Institute of Child Health, University College London, London, UK; Department of Psychological Medicine and Psychiatry, Section of Eating Disorders, Institute of Psychiatry, Kings College London, London, UK; Health Services Research Department, Institute of Psychiatry, Kings College London, London, UK.
| | - E Taborelli
- Behavioural and Brain Sciences Unit, Institute of Child Health, University College London, London, UK; Department of Psychological Medicine and Psychiatry, Section of Eating Disorders, Institute of Psychiatry, Kings College London, London, UK
| | - A Bye
- Behavioural and Brain Sciences Unit, Institute of Child Health, University College London, London, UK; Department of Psychological Medicine and Psychiatry, Section of Eating Disorders, Institute of Psychiatry, Kings College London, London, UK; Health Services Research Department, Institute of Psychiatry, Kings College London, London, UK
| | - P A Zunszain
- Department of Psychological Medicine, Institute of Psychiatry, Section of Perinatal Psychiatry and Stress, Psychiatry and Immunology (SPI-lab), King's College London, London, UK
| | - C M Pariante
- Department of Psychological Medicine, Institute of Psychiatry, Section of Perinatal Psychiatry and Stress, Psychiatry and Immunology (SPI-lab), King's College London, London, UK
| | - J Treasure
- Department of Psychological Medicine and Psychiatry, Section of Eating Disorders, Institute of Psychiatry, Kings College London, London, UK
| | - U Schmidt
- Department of Psychological Medicine and Psychiatry, Section of Eating Disorders, Institute of Psychiatry, Kings College London, London, UK
| | - N Micali
- Behavioural and Brain Sciences Unit, Institute of Child Health, University College London, London, UK; Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, USA; Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, USA
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10
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Abstract
OBJECTIVE We aimed to investigate the effect of maternal eating disorders (ED) on childhood psychopathology, early delays in cognitive, motor and language development, mother and child relationship, and child temperament in a community-based cohort: the Danish National Birth Cohort (DNBC). METHOD Data were obtained prospectively on 48 403 children at 18 months and 46 156 children at 7 years. Data on cognitive, motor and language development, temperament and attachment were obtained at 18 months; data on child psychopathology were obtained at 7 years of age, using the Strengths and Difficulties Questionnaire (SDQ). Children of mothers with lifetime diagnosis of anorexia nervosa (AN, n = 931), lifetime diagnosis of bulimia nervosa (BN, n = 906) and both (AN & BN = 360) were compared to children of mothers without an ED (n = 46 206). RESULTS Girls of women with lifetime AN had higher odds of having emotional problems, and girls of women with lifetime BN of having conduct problems compared with children of healthy women. Boys of women with lifetime AN had higher odds of total, emotional and conduct problems; boys of women with lifetime BN had higher odds of total, conduct, hyperactivity and peer difficulties compared to children of women without an ED. Boys of women with lifetime AN and BN had higher odds of total, emotional and peer problems compared to children of healthy women. CONCLUSION Maternal ED is associated with childhood psychopathology in both boys and girls. Boys seemed at higher risk for psychopathology in this sample. Associations between emotional disorders across genders in children of mothers with lifetime AN, and hyperactivity and peer difficulties in boys of mothers with lifetime BN confirm and extend previous findings and point to possible shared risk between ED and other psychopathology.
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Affiliation(s)
- M Barona
- Institute of Child Health, UCL, London, UK.
| | | | - N Micali
- Institute of Child Health, UCL, London, UK.,Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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11
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Abstract
This study aimed to determine if relatives of children with autism and less severe pervasive developmental disorders (PDDs) have higher rates of various components of the broad autistic phenotype. Psychiatric and medical disorders were investigated. Parents of children with PDDs were selected from an epidemiological survey and compared with parents of control children with non-autistic developmental problems. Rates of abnormalities and disorders were compared in relatives of 79 cases and 61 controls. Medical and autoimmune disorders in both groups were endorsed by few relatives. Specific developmental disorders were commoner in parents of controls. Depression and anxiety were significantly more prevalent in mothers of children with PDDs. Significantly more PDD children had at least one firstdegree relative with anxiety and one second-degree relative with OCD. PDDs were commoner in first-degree relatives. The implications of the findings for the definition of the broad phenotype of autism are discussed.
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Affiliation(s)
- N Micali
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry, London, UK.
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12
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Nicholls D, Statham R, Costa S, Micali N, Viner RM. Childhood risk factors for lifetime bulimic or compulsive eating by age 30 years in a British national birth cohort. Appetite 2016; 105:266-73. [PMID: 27263069 DOI: 10.1016/j.appet.2016.05.036] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Revised: 05/17/2016] [Accepted: 05/28/2016] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To examine whether previously identified childhood risk factors for bulimia or compulsive eating (BCE) predict self-reported lifetime BCE by age 30 years in a prospective birth cohort. METHOD Using data from the 1970 British Cohort Study at birth, 5, and 10 years, associations between 22 putative childhood risk factors and self-reported lifetime BCE at 30 years were examined, adjusting for sex and socioeconomic status. RESULTS Only female sex (odds ratio (OR): 9.2; 95% confidence interval (CI): 1.9-43.7; p = 0.005), low self-esteem (OR:2.9; 95%CI: 1.1-7.5; p = 0.03) and high maternal education (OR:5.4; 95%CI: 2.0-14.8; p = 0.001) were significantly associated with higher risk of BCE, whereas high SES at 10 years was significantly protective (OR:0.2; 95%CI: 0.1-0.8; p = 0.022) of BCE in fully adjusted multivariable logistic regression analysis. DISCUSSION Our findings do not support a strong role for childhood weight status and eating behaviours in the development of bulimia and compulsive eating pathology, rather suggesting a focus on self esteem may have greater relative importance. Findings in relation to maternal education and SES need further exploration.
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Affiliation(s)
- D Nicholls
- Department of Child and Adolescent Mental Health, Great Ormond Street Hospital, London, WC1N 3JH, UK; UCL Institute of Child Health, 30 Guilford Street, London, WC1N 1EH, UK.
| | - R Statham
- Department of Child and Adolescent Mental Health, Great Ormond Street Hospital, London, WC1N 3JH, UK
| | - S Costa
- UCL Institute of Child Health, 30 Guilford Street, London, WC1N 1EH, UK
| | - N Micali
- UCL Institute of Child Health, 30 Guilford Street, London, WC1N 1EH, UK
| | - R M Viner
- UCL Institute of Child Health, 30 Guilford Street, London, WC1N 1EH, UK
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Robinson L, Aldridge V, Clark EM, Misra M, Micali N. A systematic review and meta-analysis of the association between eating disorders and bone density. Osteoporos Int 2016; 27:1953-66. [PMID: 26782684 PMCID: PMC7047470 DOI: 10.1007/s00198-015-3468-4] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 12/16/2015] [Indexed: 11/25/2022]
Abstract
This meta-analysis investigates the effect of an eating disorder on bone mineral density in two eating disorder subtypes. Following conflicting findings in previous literature, this study finds that not only anorexia nervosa, but also bulimia nervosa has a detrimental effect on BMD. Key predictors of this relationship are discussed. This systematic review and meta-analysis investigates bone mineral density (BMD) in individuals with anorexia nervosa (AN) and bulimia nervosa (BN) in comparison to healthy controls (HCs). AN has been associated with low BMD and a risk of fractures and mixed results have been obtained for the relationship between BN and BMD. Deciphering the effect these two ED subtypes on BMD will determine the effect of low body weight (a characteristic of AN) versus the effects of periods of restrictive eating and malnutrition which are common to both AN and BN. We conducted a systematic search through the electronic databases MedLine, EMBASE and PsychInfo and the Cochrane Library to investigate and quantify this relationship. We screened 544 articles and included 27 studies in a random-effect meta-analysis and calculated the standardised mean difference (SMD) in BMD between women with a current diagnosis of AN (n = 785) vs HCs (n = 979) and a current diagnosis of BN (n = 187) vs HCs (n = 350). The outcome measures investigated were spinal, hip, femoral neck and whole body BMD measured by DXA or DPA scanning. A meta-regression investigated the effect of factors including age, duration since diagnosis, duration of amenorrhea and BMI on BMD. The mean BMI of participants was 16.65 kg/m(2) (AN), 21.16 kg/m(2) (BN) and 22.06 kg/m(2) (HC). Spine BMD was lowest in AN subjects (SMD, -3.681; 95 % CI, -4.738, -2.625; p < 0.0001), but also lower in BN subjects compared with HCs (SMD, -0.472; 95 % CI, -0.688, -0.255; p < 0.0001). Hip, whole body and femoral neck BMD were reduced to a statistically significant level in AN but not BN groups. The meta-regression was limited by the number of included studies and did not find any significant predictors. This meta-analysis confirms the association between low BMD and AN and presents a strong argument for assessing BMD not only in patients with AN, but also in patients with BN.
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Affiliation(s)
- L Robinson
- Institute of Child Health, University College London, Gower Street, London, WC1E 6BT, UK.
| | - V Aldridge
- Institute of Child Health, University College London, Gower Street, London, WC1E 6BT, UK
| | - E M Clark
- Musculoskeletal Research Unit, University of Bristol, Bristol, UK
| | - M Misra
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - N Micali
- Institute of Child Health, University College London, Gower Street, London, WC1E 6BT, UK
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, USA
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14
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Solmi F, Hotopf M, Hatch SL, Treasure J, Micali N. Eating disorders in a multi-ethnic inner-city UK sample: prevalence, comorbidity and service use. Soc Psychiatry Psychiatr Epidemiol 2016; 51:369-81. [PMID: 26631229 DOI: 10.1007/s00127-015-1146-7] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Accepted: 10/15/2015] [Indexed: 11/26/2022]
Abstract
PURPOSE No studies have investigated the prevalence of eating disorders (ED) according to DSM-5 criteria and few have explored their comorbidity and service use in the general population in the UK. We aimed to estimate the prevalence, comorbidity, and service use in individuals with ED in a multi-ethnic inner city sample. METHODS A total of 1698 individuals (age 16/90) were screened for ED in the first phase of the South East London Community Health Study and 145 were followed up with a diagnostic interview. Data was weighed for survey design and Chi Square tests were used to investigate socio-demographic distribution, comorbidity and service use in participants with ED. RESULTS The point prevalence of ED was 4.4 % (Binge Eating Disorder (BED) 3.6 %; Bulimia Nervosa (BN) 0.8 %) and 7.4 % when including sub-threshold diagnoses (Purging Disorder (PD) 0.6 %; Other Specified Feeding and Eating Disorders (OSFED) 2.4 %). No cases of AN were identified. Purging Disorder was the ED with the highest proportion of comorbid disorders. A minority of participants with ED had accessed specialist care services. CONCLUSIONS ED are common, the comorbidity of ED was in line with previous studies and no ethnic differences were identified. Although PD is not a full diagnosis in DSM-5, we found some evidence of high comorbidity with other disorders, that needs to be replicated using larger samples. Service use was low across ED diagnoses, despite high levels of comorbidity.
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Affiliation(s)
- F Solmi
- Behavioural and Brain Science Unit, Institute of Child Health, University College London, London, UK.
- Division of Psychiatry, University College London, Gower Street, London, UK.
| | - M Hotopf
- Psychological Medicine, Institute of Psychiatry, King's College London, London, UK
| | - S L Hatch
- Psychological Medicine, Institute of Psychiatry, King's College London, London, UK
| | - J Treasure
- Eating Disorders Department, Institute of Psychiatry, King's College London, London, UK
| | - N Micali
- Behavioural and Brain Science Unit, Institute of Child Health, University College London, London, UK
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, USA
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15
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Di Mauro A, Randazzo R, Spanò SF, Compagnini G, Gaeta M, D'Urso L, Paolesse R, Pomarico G, Di Natale C, Villari V, Micali N, Fragalà ME, D'Urso A, Purrello R. Vortexes tune the chirality of graphene oxide and its non-covalent hosts. Chem Commun (Camb) 2016; 52:13094-13096. [PMID: 27549164 DOI: 10.1039/c6cc05177d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The ability of vortexes to tune the chirality of graphene oxide in water sheds light on its complex supramolecular organization allowing for selective noncovalent deposition of a predetermined handedness on a solid surface.
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16
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Micali N, Stemann Larsen P, Strandberg-Larsen K, Nybo Andersen AM. Size at birth and preterm birth in women with lifetime eating disorders: a prospective population-based study. BJOG 2015; 123:1301-10. [DOI: 10.1111/1471-0528.13825] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/21/2015] [Indexed: 11/27/2022]
Affiliation(s)
- N Micali
- Behavioural and Brain Sciences Unit; Institute of Child Health; UCL; London UK
- Department of Psychiatry and Mindich Child Health and Development Institute; Icahn Medical School at Mount Sinai; New York NY USA
| | - P Stemann Larsen
- Section of Social Medicine; Department of Public Health; University of Copenhagen; Copenhagen Denmark
| | - K Strandberg-Larsen
- Section of Social Medicine; Department of Public Health; University of Copenhagen; Copenhagen Denmark
| | - A-M Nybo Andersen
- Section of Social Medicine; Department of Public Health; University of Copenhagen; Copenhagen Denmark
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Micali N, De Stavola B, Ploubidis G, Simonoff E, Treasure J, Field AE. Adolescent eating disorder behaviours and cognitions: gender-specific effects of child, maternal and family risk factors. Br J Psychiatry 2015; 207. [PMID: 26206865 PMCID: PMC4589663 DOI: 10.1192/bjp.bp.114.152371] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Eating disorder behaviours begin in adolescence. Few longitudinal studies have investigated childhood risk and protective FACTORS. AIMS To investigate the prevalence of eating disorder behaviours and cognitions and associated childhood psychological, physical and parental risk factors among a cohort of 14-year-old children. METHOD Data were collected from 6140 boys and girls aged 14 years. Gender-stratified models were used to estimate prospective associations between childhood body dissatisfaction, body mass index (BMI), self-esteem, maternal eating disorder and family economic disadvantage on adolescent eating disorder behaviours and cognitions. RESULTS Childhood body dissatisfaction strongly predicted eating disorder cognitions in girls, but only in interaction with BMI in boys. Higher self-esteem had a protective effect, particularly in boys. Maternal eating disorder predicted body dissatisfaction and weight/shape concern in adolescent girls and dieting in boys. CONCLUSIONS Risk factors for eating disorder behaviours and cognitions vary according to gender. Prevention strategies should be gender-specific and target modifiable predictors in childhood and early adolescence.
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Affiliation(s)
- N. Micali
- Correspondence: Nadia Micali, UCL, Institute of Child Health, Behavioral and Brain Sciences Unit, 30 Guilford Street, London WC1N 1EH.
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18
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Bould H, Sovio U, Koupil I, Dalman C, Micali N, Lewis G, Magnusson C. Do eating disorders in parents predict eating disorders in children? Evidence from a Swedish cohort. Acta Psychiatr Scand 2015; 132:51-9. [PMID: 25572654 DOI: 10.1111/acps.12389] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/15/2014] [Indexed: 11/30/2022]
Abstract
OBJECTIVE We investigated whether parental eating disorders (ED) predict ED in children, using a large multigeneration register-based sample. METHOD We used a subset of the Stockholm Youth Cohort born 1984-1995 and resident in Stockholm County in 2001-2007 (N = 286,232), The exposure was a diagnosed eating disorder in a parent; the outcome was any eating disorder diagnosis in their offspring, given by a specialist clinician, or inferred from an appointment at a specialist eating disorder clinic. A final study sample of 158,697 (55.4%) had data on these variables and confounding factors and contributed a total of 886,241 person years to the analysis. RESULTS We found good evidence in support of the hypothesis that ED in either parent are independently associated with ED in their female children (HR 1.97 (95% CI: 1.17-3.33), P = 0.01) and that ED in mothers are independently associated with ED in their female children (HR 2.35 (95% CI: 1.39-3.97) P = 0.001). Numbers were too low to permit separate analysis of ED in parents and their male children. CONCLUSION Eating disorders in parents were associated with ED in children. This study adds to our knowledge about the intergenerational transmission of ED, which will help identify high-risk groups and brings about the possibility of targeted prevention.
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Affiliation(s)
- H Bould
- Department of Psychiatry, Warneford Hospital, University of Oxford, Oxford, UK
| | - U Sovio
- Department of Obstetrics & Gynaecology, The Rosie Hospital, Cambridge, UK
| | - I Koupil
- Centre for Health Equity Studies, Stockholm University/Karolinska Institute, Stockholm, Sweden
| | - C Dalman
- Division of Epidemiology, Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden
| | - N Micali
- Behavioural and Brain Sciences Unit, UCL Institute of Child Health, London, UK
| | - G Lewis
- Mental Health Sciences Unit, Faculty of Brain Sciences, UCL, London, UK
| | - C Magnusson
- Division of Epidemiology, Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden
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19
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Sardahaee FS, Micali N, Holmen TL, Kvaløy K. Genetic Markers and Disordered Eating Amongst Adolescents- the Hunt Study. Eur Psychiatry 2015. [DOI: 10.1016/s0924-9338(15)30283-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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20
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Paganini C, Krug I, Fuller-Tyszkiewicz M, Peterson G, Anderluh M, Collier D, Fernandez-Aranda F, Karwautz A, Wagner G, Micali N, Treasure J. The Role of Personality and Pubertal Development in Eating Disorders: a European Discordant Sister-pair Study. Eur Psychiatry 2015. [DOI: 10.1016/s0924-9338(15)30154-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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21
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Sonneville KR, Calzo JP, Horton NJ, Field AE, Crosby RD, Solmi F, Micali N. Childhood hyperactivity/inattention and eating disturbances predict binge eating in adolescence. Psychol Med 2015; 45:2511-2520. [PMID: 26098685 PMCID: PMC4655585 DOI: 10.1017/s0033291715000148] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Identifying childhood predictors of binge eating and understanding risk mechanisms could help improve prevention and detection efforts. The aim of this study was to examine whether features of attention-deficit/hyperactivity disorder (ADHD), as well as childhood eating disturbances, predicted binge eating later in adolescence. METHOD We studied specific risk factors for the development of binge eating during mid-adolescence among 7120 males and females from the Avon Longitudinal Study of Parents and Children (ALSPAC), a cohort study of children in the UK, using data from multiple informants to develop structural equation models. Repeated assessment of eating disturbances during childhood (mid-childhood overeating, late-childhood overeating and early-adolescent strong desire for food), as well as teacher- and parent-reported hyperactivity/inattention during mid- and late childhood, were considered as possible predictors of mid-adolescent binge eating. RESULTS Prevalence of binge eating during mid-adolescence in our sample was 11.6%. The final model of predictors of binge eating during mid-adolescence included direct effects of late-childhood overeating [standardized estimate 0.145, 95% confidence interval (CI) 0.038–0.259, p = 0.009] and early-adolescent strong desire for food (standardized estimate 0.088, 95% CI −0.002 to 0.169, p = 0.05). Hyperactivity/inattention during late childhood indirectly predicted binge eating during mid-adolescence (standardized estimate 0.085, 95% CI 0.007–0.128, p = 0.03) via late-childhood overeating and early-adolescent strong desire for food. CONCLUSIONS Our findings indicate that early ADHD symptoms, in addition to an overeating phenotype, contribute to risk for adolescent binge eating. These findings lend support to the potential role of hyperactivity/inattention in the development of overeating and binge eating.
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Adepoju A, Micali N, Ogawa K, Hoeppner DJ, McKay RDG. FGF2 and insulin signaling converge to regulate cyclin D expression in multipotent neural stem cells. Stem Cells 2014; 32:770-8. [PMID: 24155149 DOI: 10.1002/stem.1575] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Accepted: 09/25/2013] [Indexed: 12/13/2022]
Abstract
The ex vivo expansion of stem cells is making major contribution to biomedical research. The multipotent nature of neural precursors acutely isolated from the developing central nervous system has been established in a series of studies. Understanding the mechanisms regulating cell expansion in tissue culture would support their expanded use either in cell therapies or to define disease mechanisms. Basic fibroblast growth factor (FGF2) and insulin, ligands for tyrosine kinase receptors, are sufficient to sustain neural stem cells (NSCs) in culture. Interestingly, real-time imaging shows that these cells become multipotent every time they are passaged. Here, we analyze the role of FGF2 and insulin in the brief period when multipotent cells are present. FGF2 signaling results in the phosphorylation of Erk1/2, and activation of c-Fos and c-Jun that lead to elevated cyclin D mRNA levels. Insulin signals through the PI3k/Akt pathway to regulate cyclins at the post-transcriptional level. This precise Boolean regulation extends our understanding of the proliferation of multipotent NSCs and provides a basis for further analysis of proliferation control in the cell states defined by real-time mapping of the cell lineages that form the central nervous system.
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Affiliation(s)
- Adedamola Adepoju
- National Institute for Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA; University of Massachusetts School of Medicine, Amherst, Massachusetts, USA
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Swanson SA, Aloisio KM, Horton NJ, Sonneville KR, Crosby RD, Eddy KT, Field AE, Micali N. Assessing eating disorder symptoms in adolescence: is there a role for multiple informants? Int J Eat Disord 2014; 47:475-82. [PMID: 24436213 PMCID: PMC4183354 DOI: 10.1002/eat.22250] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 12/19/2013] [Accepted: 12/29/2013] [Indexed: 11/06/2022]
Abstract
OBJECTIVES Studies of adolescent psychiatric disorders often collect information from adolescents and parents, yet most eating disorder epidemiologic studies only rely on adolescent report. METHOD We studied the eating disorder symptom reports, from questionnaires sent at participants' ages 14 and 16 years, provided by 7,968 adolescents from the Avon Longitudinal Study of Parents and Children (ALSPAC), and their parents. Adolescents and parents were asked questions about the adolescent's eating disorder symptoms (binge eating, vomiting, laxative use, fasting, and thinness). We assessed cross-sectional concordance and prevalence using kappa coefficients and generalized estimating equations. Generalized estimating equations were used to assess prospective associations between symptom reports and adolescent weight outcomes measured at a face-to-face assessment at 17.5 years. RESULTS Parents and adolescents were largely discordant on symptom reports cross-sectionally (kappas < 0.3), with the parent generally less likely to report bulimic symptoms than the adolescent but more likely to report thinness. Female adolescents were more likely to report bulimic symptoms than males (e.g., two to four times more likely to report binge eating), while prevalence estimates according to parent reports of female vs. male adolescents were similar. Both informants' symptom reports were predictive of body mass and composition measures at 17.5 years; compared to adolescent report, parentally reported binge eating was more strongly predictive of body mass index. DISCUSSION Parent report of eating disorder symptoms seemed to measure different, but potentially important, aspects of these symptoms during adolescence. Epidemiologic eating disorder studies should consider the potential value added from incorporating parental reports, particularly in studies of males.
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Affiliation(s)
- SA Swanson
- Department of Epidemiology, Harvard School of Public Health, Boston MA
| | - KM Aloisio
- Division of Adolescent Medicine, Department of Medicine, Boston Children's Hospital and Harvard Medical School, Boston, MA
| | - NJ Horton
- Department of Mathematics, Amherst College, Amherst, MA
| | - KR Sonneville
- Division of Adolescent Medicine, Department of Medicine, Boston Children's Hospital and Harvard Medical School, Boston, MA
| | - RD Crosby
- Neuropsychiatric Research Institute and Department of Clinical Neuroscience, University of North Dakota School of Medicine and Health Sciences, Fargo, ND
| | - KT Eddy
- Harris Center for Education and Advocacy in Eating Disorders, Department of Psychiatry, Massachusetts General Hospital, Boston, MA,Harvard Medical School, Boston, MA
| | - AE Field
- Department of Epidemiology, Harvard School of Public Health, Boston MA,Division of Adolescent Medicine, Department of Medicine, Boston Children's Hospital and Harvard Medical School, Boston, MA,Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - N Micali
- Behavioural and Brain Sciences Unit, Institute of Child Health, University College London, London, UK
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24
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Solmi F, Hatch SL, Hotopf M, Treasure J, Micali N. Prevalence and correlates of disordered eating in a general population sample: the South East London Community Health (SELCoH) study. Soc Psychiatry Psychiatr Epidemiol 2014; 49:1335-46. [PMID: 24441522 PMCID: PMC4108843 DOI: 10.1007/s00127-014-0822-3] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Accepted: 01/05/2014] [Indexed: 10/27/2022]
Abstract
PURPOSE Disordered eating has been shown to be more prevalent than full eating disorders diagnoses. However, research on its prevalence, socio-demographic, psychological correlates, and patterns of service use in multi-ethnic samples is still limited. This paper explores these associations in a South London-based (UK) sample. METHODS The South East London Community Health (SELCoH) study is a general population survey (N = 1,698) of individuals aged 16+. Disordered eating was defined as ≥2 positive answers at the SCOFF questionnaire. Crude and adjusted logistic and multinomial logistic regression models were fit to investigate associations between socio-demographic characteristics, disordered eating, psychiatric comorbidity, and service use. RESULTS A total of 164 (10 %) participants reported disordered eating and the majority were from ethnic minorities. In adjusted models, Asian ethnicity was associated with purging, loss of control eating and preoccupation with food. Individuals with disordered eating had higher odds of screening positive for post-traumatic stress disorder and personality disorders and of having anxiety/mood disorders, suicidal ideation/attempts, hazardous levels of drinking, and used drugs in the previous year. Only 36 % of individuals with disordered eating had sought professional help in the previous 12 months mostly through their general practitioner (27.4 %), followed by psychotherapists (12.8 %) and mental health specialists (5.5 %). CONCLUSION This study found a high prevalence of disordered eating, especially amongst ethnic minorities, and associations with a number of psychiatric conditions. Overall few participants accessed specialist services. These findings suggest that both disordered eating manifestations amongst ethnic minorities and access to care need better investigation.
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Affiliation(s)
- F. Solmi
- Behavioural and Brain Sciences Unit, Institute of Child Health, University College London, 30 Guilford Street, WC1N 1EH, London, UK
| | - S. L. Hatch
- Psychological Medicine, Institute of Psychiatry, King’s College London, London, UK
| | - M. Hotopf
- Psychological Medicine, Institute of Psychiatry, King’s College London, London, UK
| | - J. Treasure
- Eating Disorders Department, Institute of Psychiatry, King’s College London, London, UK
| | - N. Micali
- Behavioural and Brain Sciences Unit, Institute of Child Health, University College London, 30 Guilford Street, WC1N 1EH, London, UK
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Micali N, dos-Santos-Silva I, De Stavola B, Steenweg-de Graaff J, Steenweg-de Graaf J, Jaddoe V, Hofman A, Verhulst FC, Steegers E, Tiemeier H. Fertility treatment, twin births, and unplanned pregnancies in women with eating disorders: findings from a population-based birth cohort. BJOG 2013; 121:408-16. [PMID: 24206173 PMCID: PMC4155863 DOI: 10.1111/1471-0528.12503] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/24/2013] [Indexed: 11/27/2022]
Abstract
Objective To investigate fertility treatment, twin births, and unplanned pregnancies in pregnant women with eating disorders in a population-based sample. Design A longitudinal population-based birth cohort (Generation R). Setting Rotterdam, the Netherlands. Sample Women from the Generation R study who reported a history of (recent or past) anorexia nervosa (n = 160), bulimia nervosa (n = 265), or both (n = 130), and a history of psychiatric disorders other than eating disorders (n = 1396) were compared with women without psychiatric disorders (n = 4367). Methods Women were compared on the studied outcomes using logistic regression. We performed crude and adjusted analyses (adjusting for relevant confounding factors). Main outcome measures Fertility treatment, twin births, unplanned pregnancies, and women's feelings towards unplanned pregnancies. Results Relative to women without psychiatric disorders, women with bulimia nervosa had increased odds (odds ratio, OR, 2.3; 95% confidence interval, 95% CI, 1.1–5.2) of having undergone fertility treatment. Women with all eating disorders had increased odds of twin births (anorexia nervosa, OR 2.7, 95% CI 1.0–7.7; bulimia nervosa, OR 2.7, 95% CI 1.1–6.6; anorexia and bulimia nervosa, OR 3.795% CI 1.3–10.7). Anorexia nervosa was associated with increased odds of unplanned pregnancies (OR 1.8, 95% CI 1.2–2.6) and mixed feelings about these pregnancies (adjusted OR 5.0, 95% CI 1.7–14.4). Pre-pregnancy body mass index did not explain the observed associations. Conclusions Eating disorders are associated with increased odds of receiving fertility treatment and twin births. Women with anorexia nervosa were more likely to have an unplanned pregnancy and have mixed feelings about the unplanned pregnancy. Fertility treatment specialists should be aware that both active and past eating disorders (both anorexia nervosa and bulimia nervosa) might underlie fertility problems.
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Affiliation(s)
- N Micali
- Behavioural and Brain Sciences Unit, UCL Institute of Child Health, London, UK
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Abstract
BACKGROUND There is a large body of evidence indicating that eating disorders (EDs) are characterized by particular neuropsychological profiles. We aimed to further explore whether impairments in neuropsychological functioning previously found in ED groups are present prior to onset, or are secondary to the disorder. Method This is the first study to explore neuropsychological functioning in children born to a mother with a lifetime ED, who are therefore at high risk of developing an ED, in a large cohort sample. We investigated intelligence and attention at age 8 years (n = 6201) and working memory (WM) and inhibition at age 10 years (6192) in children who are at high risk of developing an ED, compared to children who are not. RESULTS The children of women with lifetime anorexia nervosa (AN) showed high full-scale and performance IQ, increased WM capacity, better visuo-spatial functioning, and decreased attentional control. The children of women with lifetime bulimia nervosa (BN) showed comparatively poor visuo-spatial functioning. CONCLUSIONS Our findings suggest that high intelligence, increased WM capacity and impaired attentional control might be intermediate phenotypes on the pathway between genetic vulnerability and the development of an ED.
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Affiliation(s)
- R Kothari
- Behavioural and Brain Sciences Unit, Institute of Child Health, University College London, UK.
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Taborelli E, Krug I, Karwautz A, Wagner G, Haidvogl M, Fernandez-Aranda F, Castro R, Jiménez-Murcia S, Anderluh M, Collier D, Treasure JL, Micali N. Maternal Anxiety, Overprotection and Anxious Personality as Risk Factors for Eating Disorder: A Sister Pair Study. Cogn Ther Res 2013. [DOI: 10.1007/s10608-012-9518-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Micali N, De Stavola B, dos-Santos-Silva I, Steenweg-de Graaff J, Jansen PW, Jaddoe VWV, Hofman A, Verhulst FC, Steegers EAP, Tiemeier H. Perinatal outcomes and gestational weight gain in women with eating disorders: a population-based cohort study. BJOG 2012; 119:1493-502. [DOI: 10.1111/j.1471-0528.2012.03467.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
BACKGROUND It has been suggested that childhood obsessive-compulsive disorder (OCD) may be a risk factor for the development of an eating disorder (ED) later in life, but prospective studies are lacking. We aimed to determine the prevalence of ED at follow-up and clinical predictors in a longitudinal clinical sample of adolescents/young adults diagnosed with OCD in childhood. METHOD All contactable (n=231) young people with OCD assessed over 9 years at a national and specialist paediatric OCD clinic were included in this study. At follow-up, 126 (57%) young people and parents completed the ED section of the Developmental and Well-being Assessment. Predictors for ED were investigated using logistic regression. RESULTS In total, 16 participants (12.7%) had a diagnosis of ED at follow-up. Having an ED was associated with female gender and persistent OCD at follow-up. There was a trend for family history of ED being predictive of ED diagnosis. Five (30%) of those who developed an ED at follow-up had ED symptoms or food-related obsessions/compulsions at baseline. A difference in predictors for an ED versus other anxiety disorders at follow-up was identified. CONCLUSIONS This study provides initial evidence that baseline clinical predictors such as female gender and family history of ED might be specific to the later development of ED in the context of childhood OCD. Clinicians should be alert to ED subthreshold symptoms in young girls presenting with OCD. Future longitudinal studies are needed to clarify the relationship between childhood OCD and later ED.
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Affiliation(s)
- N Micali
- King's College London, Department of Child and Adolescent Psychiatry, Institute of Psychiatry, London, UK.
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Easter A, Treasure J, Micali N. Fertility and prenatal attitudes towards pregnancy in women with eating disorders: results from the Avon Longitudinal Study of Parents and Children. BJOG 2011; 118:1491-8. [DOI: 10.1111/j.1471-0528.2011.03077.x] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Micali N, Simonoff E, Stahl D, Treasure J. FC23-05 - Pregnancy and post-partum depression and anxiety in a longitudinal general population cohort: the effect of eating disorders and past depression. Eur Psychiatry 2011. [DOI: 10.1016/s0924-9338(11)73647-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AimsTo investigate the effect of past depression, past and current eating disorders (ED) on perinatal anxiety and depression in a large general population cohort of pregnant women, the Avon Longitudinal Study of Parents And Children (ALSPAC).MethodsAnxiety and depression were measured during and after pregnancy in 10,887 women, using the Crown-Crisp Experiential Inventory and Edinburgh Postnatal Depression Scale. Women were grouped according to depression and ED history: past ED with (n = 123) and without past depression (n = 50), pregnancy ED symptoms with (n = 77) and without past depression (n = 159), past depression only (n = 818) and controls (n = 9,660). We compared the course of depression and anxiety with linear mixed-effect regression models; and probable depressive and anxiety disorders using logistic regression.ResultsWomen with both past depression and past/current ED had high anxiety and depression across time perinatally; this was most marked in the group with pregnancy ED symptoms and past depression (b coefficient:5.1 (95% CI 4.1-6.1), p < 0.0001), especially at 8 months post-partum. At 18 weeks in pregnancy all women (apart from those with past ED only) had a higher risk for a probable depressive and anxiety disorder compared to controls. At 8 months post-partum pregnancy ED symptoms and/or past depression conferred the highest risk for a probable depressive and anxiety disorder.ConclusionsPregnancy ED symptoms and past depression have an additive effect in increasing the risk for depression and anxiety perinatally. Screening at risk women for anxiety and depression in the perinatal period might be beneficial.
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Micali N, Heyman I, Perez M, Hilton K, Nakatani E, Turner C, Mataix-Cols D. Long-term outcomes of obsessive-compulsive disorder: follow-up of 142 children and adolescents. Br J Psychiatry 2010; 197:128-34. [PMID: 20679265 DOI: 10.1192/bjp.bp.109.075317] [Citation(s) in RCA: 110] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Obsessive-compulsive disorder (OCD) often starts in childhood and adolescence and can be a chronic disorder with high persistence rates. There are few prospective long-term follow-up studies. AIMS To follow up young people with OCD to clarify persistence rates and relevant predictors, presence of other psychiatric disorders, functional impairment, service utilisation and perceived treatment needs. METHOD All young people with OCD assessed over 9 years at the National and Specialist Paediatric OCD clinic, Maudsley Hospital, London, were included. Sixty-one per cent (142 of 222) of all contactable young people and parents completed computerised diagnostic interviews and questionnaires. RESULTS We found a persistence rate of OCD of 41%; 40% of participants had a psychiatric diagnosis other than OCD at follow-up. The main predictor for persistent OCD was duration of illness at assessment. High levels of baseline psychopathology predicted other psychiatric disorders at follow-up. Functional impairment and quality of life were mildly to moderately affected. Approximately 50% of participants were still receiving treatment and about 50% felt a need for further treatment. CONCLUSIONS This study confirms that paediatric OCD can be a chronic condition that persists into adulthood. Early recognition and treatment might prevent chronicity. Important challenges for services are ensuring adequate treatment and a smooth transition from child to adult services.
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Affiliation(s)
- N Micali
- Child and Adolescent Psychiatry Department, Institute of Psychiatry, King's College London, Box 085, De Crespigny park, London SE5 8AF, UK.
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Micali N, Longobardi E, Iotti G, Ferrai C, Castagnaro L, Ricciardi M, Blasi F, Crippa MP. Down syndrome fibroblasts and mouse Prep1-overexpressing cells display increased sensitivity to genotoxic stress. Nucleic Acids Res 2010; 38:3595-604. [PMID: 20110257 PMCID: PMC2887940 DOI: 10.1093/nar/gkq019] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
PREP1 (PKNOX1) maps in the Down syndrome (DS) critical region of chromosome 21, is overexpressed in some DS tissues and might be involved in the DS phenotype. By using fibroblasts from DS patients and by overexpressing Prep1 in F9 teratocarcinoma and Prep1i/i MEF to single out the role of the protein, we report that excess Prep1 increases the sensitivity of cells to genotoxic stress and the extent of the apoptosis directly correlates with the level of Prep1. The apoptotic response of Prep1-overexpressing cells is mediated by the pro-apoptotic p53 protein that we show is a direct target of Prep1, as its depletion reverts the apoptotic phenotype. The induction of p53 overcomes the anti-apoptotic role of Bcl-XL, previously shown to be also a Prep1 target, the levels of which are increased in Prep1-overexpressing cells as well. Our results provide a rationale for the involvement of PREP1 in the apoptotic phenotype of DS tissues and indicate that differences in Prep1 level can have drastic effects.
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Affiliation(s)
- Nicola Micali
- Laboratory of Molecular Dynamics of the Nucleus, Division of Genetics and Cell Biology, S. Raffaele Scientific Institute, via Olgettina 60, Milan, Italy
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Longobardi E, Iotti G, Di Rosa P, Mejetta S, Bianchi F, Fernandez-Diaz LC, Micali N, Nuciforo P, Lenti E, Ponzoni M, Doglioni C, Caniatti M, Di Fiore PP, Blasi F. Prep1 (pKnox1)-deficiency leads to spontaneous tumor development in mice and accelerates EmuMyc lymphomagenesis: a tumor suppressor role for Prep1. Mol Oncol 2010; 4:126-34. [PMID: 20106730 DOI: 10.1016/j.molonc.2010.01.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2009] [Revised: 12/28/2009] [Accepted: 01/04/2010] [Indexed: 02/02/2023] Open
Abstract
The Prep1 homeodomain transcription factor is essential for embryonic development. 25% of hypomorphic Prep1(i/i) embryos, expressing the gene at 2% of the normal levels, survive pregnancy and live a normal-length life. Later in life, however, these mice develop spontaneous pre-tumoral lesions or solid tumors (lymphomas and carcinomas). In addition, transplantation of E14.5 fetal liver (FL) Prep1(i/i) cells into lethally irradiated mice induces lymphomas. In agreement with the above data, haploinsufficiency of a different Prep1-deficient (null) allele accelerates EmuMyc lymphoma growth. Therefore Prep1 has a tumor suppressor function in mice. Immunohistochemistry on tissue micrroarrays (TMA) generated from three distinct human cohorts comprising a total of some 1000 human tumors revealed that 70% of the tumors express no or extremely low levels of Prep1, unlike normal tissues. Our data in mice are thus potentially relevant to human cancer.
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Affiliation(s)
- E Longobardi
- Università Vita Salute San Raffaele, via Olgettina 60, Milano 20132, Italy
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Micali N, Holliday J, Karwautz A, Haidvogl M, Wagner G, Fernandez-Aranda F, Badia A, Gimenez L, Solano R, Brecelj-Anderluh M, Mohan R, Collier D, Treasure JL. Childhood eating and weight in eating disorders: a multi-centre European study of affected women and their unaffected sisters. Psychother Psychosom 2007; 76:234-41. [PMID: 17570962 DOI: 10.1159/000101502] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND Previous studies have suggested that childhood eating and weight problems may be risk factors for eating disorders. Robust evidence is still lacking. AIMS To investigate whether childhood eating and weight problems increase the risk of eating disorders in affected women compared to their unaffected sisters. METHODS Women (150) with anorexia (AN) or bulimia nervosa (BN) recruited from clinical and community samples were compared to their unaffected sister closest in age on maternal reports of childhood eating and weight. RESULTS Women with BN were significantly more overweight at the ages of 5 and 10 (both OR = 2.8, p < 0.01), ate a lot (OR = 1.3, p < 0.01), were less picky (OR = 0.6, p < 0.05) and ate quickly (OR = 2.3, p < 0.05) between the ages of 6 and 10 compared to their healthy sisters. Significantly more women with AN were described as having a higher weight at 6 months (OR = 0.8, p < 0.01) and 1 year (OR = 0.6, p < 0.01) compared to their healthy sisters. Childhood eating was comparable in the women with AN and their unaffected sisters. CONCLUSIONS Traits of childhood overeating were more common in bulimic women compared to their unaffected siblings. Subjects with AN did not differ from their sisters on eating variables. The increased risk of BN due to childhood overweight suggests that prevention strategies for childhood obesity and overweight may therefore be applicable in BN.
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Affiliation(s)
- N Micali
- Department of Child and Adolescent Psychiatry and Eating Disorders Research Unit, Institute of Psychiatry, King's College London, London, UK.
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Ferretti E, Villaescusa JC, Di Rosa P, Fernandez-Diaz LC, Longobardi E, Mazzieri R, Miccio A, Micali N, Selleri L, Ferrari G, Blasi F. Hypomorphic mutation of the TALE gene Prep1 (pKnox1) causes a major reduction of Pbx and Meis proteins and a pleiotropic embryonic phenotype. Mol Cell Biol 2006; 26:5650-62. [PMID: 16847320 PMCID: PMC1592771 DOI: 10.1128/mcb.00313-06] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The interaction of Prep1 and Pbx homeodomain transcription factors regulates their activity, nuclear localization, and likely, function in development. To understand the in vivo role of Prep1, we have analyzed an embryonic lethal hypomorphic mutant mouse (Prep1(i/i)). Prep1(i/i) embryos die at embryonic day 17.5 (E17.5) to birth with an overall organ hypoplasia, severe anemia, impaired angiogenesis, and eye anomalies, particularly in the lens and retina. The anemia correlates with delayed differentiation of erythroid progenitors and may be, at least in part, responsible for intrauterine death. At E14.5, Prep1 is present in fetal liver (FL) cMyb-positive cells, whose deficiency causes a marked hematopoietic phenotype. Prep1 is also localized to FL endothelial progenitors, consistent with the observed angiogenic phenotype. Likewise, at the same gestational day, Prep1 is present in the eye cells that bear Pax6, implicated in eye development. The levels of cMyb and Pax6 in FL and in the retina, respectively, are significantly decreased in Prep1(i/i) embryos, consistent with the hematopoietic and eye phenotypes. Concomitantly, Prep1 deficiency results in the overall decrease of protein levels of its related family member Meis1 and its partners Pbx1 and Pbx2. As both Prep1 and Meis interact with Pbx, the overall Prep1/Meis-Pbx DNA-binding activity is strongly reduced in whole Prep1(i/i) embryos and their organs. Our data indicate that Prep1 is an essential gene that acts upstream of and within a Pbx-Meis network that regulates multiple aspects of embryonic development.
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Affiliation(s)
- Elisabetta Ferretti
- Laboratory of Molecular Genetics, DIBIT, via Olgettina 58, 20132 Milano, Italy
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Crupi V, Majolino D, Migliardo P, Venuti V, Micali N, Villari V, Mineo P, Vitalini D, Scamporrino E. Aggregation effects in aqueous solutions of Star-polymers by spectroscopic investigations. J Mol Struct 2003. [DOI: 10.1016/s0022-2860(02)00692-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Alibrandi G, Coppolino S, Micali N, Villari A. Release from transdermal delivery systems. Application of a new non isothermic method to Trans-Ver-Sal patches. Boll Chim Farm 2003; 142:102-4. [PMID: 12806826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
In this paper a new non isothermic method for the determination of the release drug rate constant (k) from a transdermal delivery system is proposed. The new method was applied to transdermal patches Trans-Ver-Sal. The results obtained prove to be able to release salicylic acid of transdermal system and the effectiveness of the new method propose.
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Affiliation(s)
- G Alibrandi
- Dipartimento di Chimica Inorganica, Chimica Analitica e Chimica Fisica, Università di Messina, Messina, Italia
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Alibrandi G, Coppolino S, Micali N, Villari A. Fast rolitetracycline stability determination by spectrophotometer variable-temperature kinetic experiments. Boll Chim Farm 2003; 142:51-3. [PMID: 12705090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
The pseudo-first order rate constant for the hydrolysis of rolitetracycline as a function of temperature was obtained by performing variable-temperature kinetic experiments. The results are in agreement with those obtained at constant-parameter kinetics but saving experimental time and chemicals.
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Affiliation(s)
- G Alibrandi
- Dipartimento di Chimica Inorganica, Chimica Analitica e Chimica Fisica, Università di Messina, Messina, Italy
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Magazu S, Maisano G, Majolino D, Mallamace F, Migliardo P, Micali N. Structural changes in potassium oleate microemulsions by ultrasound measurements. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100345a073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Lacaille F, Micali N, Lachaux A, Morali A, Sarles J, Rieu D, Chouraqui JP, Maurage C, Gottrand F. [Treatment of chronic hepatitis C with interferon in children]. Arch Pediatr 2002; 9:339-40. [PMID: 11938548 DOI: 10.1016/s0929-693x(01)00773-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Micali N, Mallamace F, Castriciano M, Romeo A, Scolaro LM. Separation of scattering and absorption contributions in UV/visible spectra of resonant systems. Anal Chem 2001; 73:4958-63. [PMID: 11681472 DOI: 10.1021/ac010379n] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Resonance light scattering (RLS) is a phenomenon due to an enhancement of the scattered light in close proximity to an absorption band. The effect is easily detectable in the case of strongly absorbing chromophores, which are able to interact, thus leading to large aggregates (Pasternack, R. F.; Collings, P. J. Science 1995, 269, 935). The measurement of absorption spectra from solutions containing such resonant systems can lead to misleading results. In this paper, a simple method is described to obtain absorption spectra of aggregated species with a fairly good correction of the scattering component. The RLS spectrum, obtained using a common spectrofluorimeter, is correlated to the extinction spectrum of the same sample, allowing for an estimation of the scattering contribution to the total extinction spectrum. The method has been successfully applied both on real samples containing aggregated chromophores, such as porphyrins, chlorophyll a and gold colloids, and by simulating extinction spectra.
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Affiliation(s)
- N Micali
- Istituto di Tecniche Spettroscopiche, ITS-CNR, Messina, Italy
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Abstract
The complete pH-rate profile of the hydrolysis reaction of aspirin, requiring many experiments in the past, was obtained by a single variable-parameter kinetic experiment carried out by varying the hydrogen ion concentration. The experiment was carried out spectrophotometrically, reading automatically absorbance, pH, and temperature inside the reaction vessel. The results obtained by the fast processing of the kinetic profile are identical to those obtained under the same conditions but using traditional constant-pH kinetic runs. This method provides the possibility of reducing the amount of time and chemicals usually spent in collecting kinetic data in such mechanistic studies by nearly two orders of magnitude.
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Affiliation(s)
- G Alibrandi
- Dipartimento di Chimica Inorganica, Chimica Analitica e Chimica Fisica, Università di Messina, Salita Sperone 31, Villaggio S. Agata, 98166 Messina, Italy.
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Mallamace F, Gambadauro P, Micali N, Tartaglia P, Liao C, Chen S. Kinetic glass transition in a micellar system with short-range attractive interaction. Phys Rev Lett 2000; 84:5431-5434. [PMID: 10990961 DOI: 10.1103/physrevlett.84.5431] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/1999] [Indexed: 05/23/2023]
Abstract
We show that percolation and structural arrest transitions coexist in different regions of the phase diagram of a copolymer-micellar system and relate them to short-range intermicellar attraction. The intermediate scattering function shows a nonergodic transition along a temperature and concentration dependent line. Analyses show a logarithmic time dependence, attributed to a higher-order glass transition singularity predicted by mode-coupling theory, followed by a power law.
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Affiliation(s)
- F Mallamace
- Department of Nuclear Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 and Istituto Nazionale per la Fisica della Materia, Genova, Italy
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Mallamace F, Gambadauro P, Lesieur P, Lombardo D, Micali N, Romeo A, Monsù Scolaro L. Scaling properties in the structure of new complex materials (porphyrins and dendritic polymer systems). J Appl Crystallogr 2000. [DOI: 10.1107/s0021889899013771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Lobry L, Micali N, Mallamace F, Liao C, Chen SH. Interaction and percolation in the L64 triblock copolymer micellar system. Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics 1999; 60:7076-87. [PMID: 11970647 DOI: 10.1103/physreve.60.7076] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/1999] [Indexed: 04/18/2023]
Abstract
We present results of analyses of an extensive set of static light scattering (SLS), small angle neutron scattering (SANS), and viscoelastic (frequency dependent complex moduli) measurements of aqueous solutions of a triblock copolymer micellar system. We investigate Pluronic L64 (PEO(13)PPO(30)PEO(13))-water system in a wide range of composition and temperature. We determine phase diagram of the disordered micellar phase, including a cmc-cmt curve, a cloud point curve, the critical concentration, and the critical temperature by means of SLS and SANS. The microstructure and interaction between micelles are determined by analyses of SANS intensities. SANS intensity distributions are well described by combining the cap-and-gown model for the polymer segmental distribution within a micelle and the sticky hard sphere model for the intermicellar structure factor. The existence of percolation loci at well defined poins in the temperature-concentration plane is inferred from an abrupt increase of the stickiness parameter extracted from SANS data and from two order of magnitude jump of the complex moduli at the percolation point. Study of temperature dependence of real (storage) and imaginary (loss) part of the complex modulus at fixed concentration and frequency lends further support to the existence of a percolation line. We observe an increase of some order of magnitude of the real and imaginary part of viscosity at certain temperature and composition, a phenomenon usually ascribed to a gelation process in a polymer solution. The definitive confirmation of the percolation process is obtained by frequency dependent complex viscosity measured in a frequency range 0-160 (rad/sec). From these measurements we clearly observe a well defined frequency scaling behavior of the complex moduli and a loss angle (delta) independent of the frequency. Scaling exponents, determined for frequency-dependent complex moduli satisfy the scaling relations predicted by the scalar elasticity percolation theory.
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Affiliation(s)
- L Lobry
- Dipartimento di Fisica, Universitá di Messina, and Istituto Nazionale per la Fisica della Materia, Sezione di Messina, Vill. S. Agata, CP 55, 98166 Messina, Italy
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Ficarra R, Villari A, Micali N, Tommasini S, Calabrò ML, Di Bella MR, Melardi S, Agresta MF, Coppolino S, Stancanelli R. Stability study of piroxicam and cinnoxicam in solid pharmaceuticals. J Pharm Biomed Anal 1999; 20:283-8. [PMID: 10704033 DOI: 10.1016/s0731-7085(99)00037-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The pseudo-first order rate constant for the hydrolysis of cinnoxicam as a function of temperature was obtained by variable-temperature kinetic experiments. The method used is on a generalization of non-isothermal analysis, and takes advantage of the capabilities of modern data collection and processing systems. A spectrophotometric method under non isothermal conditions was carried out. The results obtained are identical to those obtained under the same conditions by using traditional constant-temperature kinetic runs. This provides the possibility of reducing the amount of time spent and chemicals usually used in collecting kinetic data in mechanistic studies in solution by an order of magnitude.
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Affiliation(s)
- R Ficarra
- Dipartimento Farmaco-Chimico, Università di Messina, Facoltà di Farmacia, Italy.
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48
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Stewart JP, Micali N, Usherwood EJ, Bonina L, Nash AA. Murine gamma-herpesvirus 68 glycoprotein 150 protects against virus-induced mononucleosis: a model system for gamma-herpesvirus vaccination. Vaccine 1999; 17:152-7. [PMID: 9987149 DOI: 10.1016/s0264-410x(98)00190-x] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Murine gamma-herpesvirus 68 (MHV-68) is a model for the study of the pathogenesis of gamma-herpesviruses. Epstein-Barr virus (EBV) is a highly related gamma-herpesvirus that causes significant disease in humans. The major membrane antigen gp350 of EBV is a candidate vaccine antigen for protection against EBV-related disease. An MHV-68 glycoprotein, gp150, has significant homology to EBV gp350. We have therefore used the MHV-68 gp150 to model the potential efficacy of EBV gp350 in protecting from virus-associated disease. A recombinant vaccinia virus expressing MHV-68 gp150 was constructed. This recombinant vaccinia virus was used to infect mice via the subcutaneous route. This vaccination resulted in production of MHV-68-neutralising antibodies. Mice were then challenged intra-nasally with MHV-68. MHV-68-associated mononucleosis was virtually abrogated in immunised mice. However, mice did establish MHV-68 latency. The results suggest that gp350 may be effective as an immunogen to prevent EBV-associated infectious mononucleosis in humans that are EBV-seronegative.
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Affiliation(s)
- J P Stewart
- Department of Veterinary Pathology, University of Edinburgh, UK.
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49
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Mallamace F, Micali N, Chen SH. Spinodal Decomposition in Bicontinuous Microemulsions Studied by Ultra-Small-Angle Time-Resolved Light Scattering. J Appl Crystallogr 1997. [DOI: 10.1107/s0021889897001908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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50
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Letamendia L, Belkadi M, Eloutassi O, Pru-Lestret E, Nouchi G, Rouch J, Blaudez D, Mallamace F, Micali N, Vasi C. Anomalous effects in the temperature dependence of depolarized Rayleigh spectra of benzene and quinoline. Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics 1996; 54:5327-5330. [PMID: 9965717 DOI: 10.1103/physreve.54.5327] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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