DOCSLIB.ORG

Vasopressin Anatomy of the Mouse Brain

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Vasopressin Anatomy of the Mouse Brain University of Massachusetts Amherst ScholarWorks@UMass Amherst Open Access Dissertations 2-2010 Vasopressin Anatomy of the Mouse Brain Benjamin D. Rood University of Massachusetts Amherst Follow this and additional works at: https://scholarworks.umass.edu/open_access_dissertations Part of the Behavior and Behavior Mechanisms Commons, and the Neurology Commons Recommended Citation Rood, Benjamin D., "Vasopressin Anatomy of the Mouse Brain" (2010). Open Access Dissertations. 200. https://scholarworks.umass.edu/open_access_dissertations/200 This Open Access Dissertation is brought to you for free and open access by ScholarWorks@UMass Amherst. It has been accepted for inclusion in Open Access Dissertations by an authorized administrator of ScholarWorks@UMass Amherst. For more information, please contact [email protected]. VASOPRESSIN ANATOMY OF THE MOUSE BRAIN A Dissertation Presented by BENJAMIN D. ROOD Submitted to the Graduate School of the University of Massachusetts Amherst in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY February 2010 Neuroscience and Behavior © Copyright by Benjamin D. Rood 2010 All Rights Reserved VASOPRESSIN ANATOMY OF THE MOUSE BRAIN A Dissertation Presented by BENJAMIN D. ROOD Approved as to style and content by: _________________________________________________ Geert J. de Vries, Chair _________________________________________________ John R. Nambu, Member _________________________________________________ Jeffrey D. Blaustein, Member _________________________________________________ Nancy G. Forger, Member _____________________________________________ Jerrold S. Meyer, Director Neuroscience and Behavior DEDICATION To my loving wife and two beautiful children. ACKNOWLEDGEMENTS I would like to thank my advisor Geert J. de Vries for the many years of guidance and support that he has given me. I am also especially grateful for his having believed in me even when I no longer believed in myself. Thank you to my dissertation committee, Nancy Forger, Jeff Blaustein, and John Nambu, whose feedback has always made me a better writer and scientist. To the many students and technicians that have assisted me over the last decade, thank you. Thank you to my friends Marianne Seney and, especially, Elaine Murray, who have always been there to encourage me and help me get to the next day. Finally, to my wife and children, I love you. Without your support and understanding the writing of this dissertation would not have been possible. You inspire me. v ABSTRACT VASOPRESSIN ANATOMY OF THE MOUSE BRAIN FEBRUARY 2010 BENJAMIN D. ROOD, B.S., BATES COLLEGE M.S., UNIVERSITY OF MASSACHUSETTS AMHERST Ph.D., UNIVERSITY OF MASSACHUSETTS AMHERST Directed by: Geert J. de Vries The nine amino acid peptide vasopressin acts as a neurohormone in the periphery and a neurotransmitter / neuromodulator in the central nervous system. Historically, research on vasopressin neurons and their projections to the pituitary has helped lay the groundwork for our understanding of peptidergic neurotransmission. Currently, our research on central vasopressin projections is driving a revolution in our understanding of social behavior. Vasopressin affects a number of social behaviors from social memory to aggression to affiliative behavior, such as pair-bonding. Further, with the addition of more and more transgenic mouse models of disease states, anxiety and depression related disorders, and social behavior dysfunction, it is important now more than ever to have a clear knowledge of the mouse vasopressin system, which derives from a number of distinct nuclei within the brain. Here, I map out vasopressin immunoreactivity in the mouse brain, and delineate the subset of brain regions with gonadal steroid hormone- dependent vasopressin immunoreactivity. Such projections are thought to derive from the bed nuclei of the stria terminalis and medial amygdala in the telencephalon. Finally, based on data from mice with lesions of the suprachiasmatic nucleus, I outline the subset of regions that likely receive vasopressin from this source. Our research on the anatomy of the vasopressin system of mice and our attempts to delineate the site of origin of the many vasopressin fibers found throughout the brain suggest that a significant amount of the vasopressin innervation deriving from cells in the bed nuclei of the stria terminalis and medial amygdala project to areas in the midbrain involved in serotonin and dopamine transmission, such as the dorsal raphe and ventral tegmental area. These transmitter systems play a crucial role in the control of anxiety and depression levels as well as motivated behavior and emotional regulation. Our results strongly suggest that a direct link exists between these systems, and future plans include an examination of this possibility. It is our hope that this work will further our understanding of the role of vasopressin and other transmitter systems in the regulation of social behaviors. vi TABLE OF CONTENTS Page ACKNOWLEDGMENTS .............................................................................................v ABSTRACT................................................................................................................. vi LIST OF TABLES...................................................................................................... xii LIST OF FIGURES ................................................................................................... xiii CHAPTER 1. THE VASOPRESSIN SYSTEM ..............................................................................1 1.1 Introduction.................................................................................................1 1.2 Vasopressin is a peptide..............................................................................1 1.3 Vasopressin acts as a neurotransmitter .......................................................2 1.4 Location of vasopressin production............................................................4 1.5 Regulation of vasopressin gene expression ................................................5 1.6 Location of vasopressin-containing fibers..................................................7 1.7 Site of origin of vasopressin-containing fibers .........................................10 1.8 Vasopressin receptors ...............................................................................12 1.9 Functions carried out by vasopressin........................................................13 1.10 Summary.................................................................................................15 2. VASOPRESSIN ANATOMY IN INTACT MALES.............................................16 2.1 Introduction...............................................................................................16 2.2 Methods.....................................................................................................19 2.2.1 Animals......................................................................................19 2.2.2 Tissue collection and processing ...............................................20 2.2.3 Nissl staining..............................................................................20 2.2.4 Immunohistochemistry..............................................................21 2.2.5 Analyses and image acquisition.................................................22 2.3 Results.......................................................................................................22 2.3.1 Cell bodies in the diencephalon .................................................24 2.3.1.1 Paraventricular nucleus...............................................24 2.3.1.2 Supraoptic nucleus......................................................24 2.3.1.3 Suprachiasmatic nucleus.............................................25 2.3.1.4 Accessory nuclei.........................................................25 vii 2.3.1.5 Other hypothalamic nuclei..........................................26 2.3.2 Cell bodies in the telencephalon ................................................26 2.3.2.1 Bed nuclei of the stria terminalis ................................26 2.3.2.2 Medial Amygdala........................................................27 2.3.3 Small versus medium fibers.......................................................27 2.3.4 Fibers in the telencephalon ........................................................28 2.3.4.1 Cortex..........................................................................28 2.3.4.2 Hippocampus ..............................................................28 2.3.4.3 Basal ganglia...............................................................29 2.3.4.4 Septal Complex...........................................................30 2.3.4.5 Ventral forebrain.........................................................31 2.3.4.6 Bed nuclei of the stria terminalis ................................31 2.3.4.7 Amygdala....................................................................32 2.3.5 Fibers in the diencephalon .........................................................34 2.3.5.1 Hypothalamus .............................................................34 2.3.5.1.1 Preoptic Area...............................................34 2.3.5.1.2 Anterior hypothalamus.................................35 2.3.5.1.3 Dorsomedial hypothalamus .........................36 2.3.5.1.4 Lateral hypothalamus...................................37 2.3.5.1.5 Mammillary bodies......................................37
Load more

Recommended publications
  • Context-Dependent Modulation of Auditory Processing by Serotonin
    Hearing Research 279 (2011) 74e84 Contents lists available at ScienceDirect Hearing Research journal homepage: www.elsevier.com/locate/heares Context-dependent modulation of auditory processing by serotonin L.M. Hurley a,*, I.C. Hall b a Indiana University, Jordan Hall/Biology, 1001 E. Third St, Bloomington, IN 47405, USA b Columbia University, 901 Fairchild Center, M.C. 2430, New York, NY 10027, USA article info abstract Article history: Context-dependent plasticity in auditory processing is achieved in part by physiological mechanisms that Received 3 October 2010 link behavioral state to neural responses to sound. The neuromodulator serotonin has many character- Received in revised form istics suitable for such a role. Serotonergic neurons are extrinsic to the auditory system but send 13 December 2010 projections to most auditory regions. These projections release serotonin during particular behavioral Accepted 20 December 2010 contexts. Heightened levels of behavioral arousal and specific extrinsic events, including stressful or Available online 25 December 2010 social events, increase serotonin availability in the auditory system. Although the release of serotonin is likely to be relatively diffuse, highly specific effects of serotonin on auditory neural circuitry are achieved through the localization of serotonergic projections, and through a large array of receptor types that are expressed by specific subsets of auditory neurons. Through this array, serotonin enacts plasticity in auditory processing in multiple ways. Serotonin changes the responses of auditory neurons to input through the alteration of intrinsic and synaptic properties, and alters both short- and long-term forms of plasticity. The infrastructure of the serotonergic system itself is also plastic, responding to age and cochlear trauma.
    [Show full text]
  • Distribution of Neurotransmitters in the Sheep Brain
    Journal of Reproduction and Fertility Supplement 49, 199-220 Distribution of neurotransmitters in the sheep brain Y. Tillet Laborcttoirede NeuroendocrinologieSexuelle, Station de Physiologiede la Reproductiondes Mammiferes Domestiques, INRA, 37380 Nouzilly, France Although the general organization of the sheep brain is similar to that of other mammals, there are species differences in the fine architecture and neurotransmitter distribution. In sheep, perikarya are generally scattered, unlike the situation in rodents where they are clustered. The same organization is observed in cows and primates. The density of neurones immunoreactive for tyrosine hydroxylase in the dorsorostral diencephalon of sheep is lower than in rodents; A14 and A15 dopaminergic cell groups do not present a dorsal part. Only one adrenergic group, C2, is observed in the dorsomedial medulla oblongata. GnRH-immunoreactive neurones are mainly found in the anterior hypothalamic—preoptic areas, a few being present in the mediobasal hypothalamus. The density of several neurones contain- ing neuropeptides (for example vasoactive intestinal polypeptide, cholecystokinin and somatostatin) in the caudal brain of sheep is lower than in other species and in the forebrain of sheep. These differences contribute to different patterns of innervation of brain areas compared with other species. For example, the supra- chiasmatic nucleus does not present a dense network of fibres immunoreactive for 5-hydroxytryptamine and neuropeptide Y as observed in rats. These morphological studies constitute information necessary for further physiological investigations. Introduction In sheep, as in other species, neurotransmitters in the brain are involved in the control of physiological cues through endocrine and autonomic regulation. Among the species used to study endocrine regulation, sheep present interesting and specific physiological characteristics.
    [Show full text]
  • Deconstructing Arousal Into Wakeful, Autonomic and Affective Varieties
    Neuroscience Letters xxx (xxxx) xxx–xxx Contents lists available at ScienceDirect Neuroscience Letters journal homepage: www.elsevier.com/locate/neulet Review article Deconstructing arousal into wakeful, autonomic and affective varieties ⁎ Ajay B. Satputea,b, , Philip A. Kragelc,d, Lisa Feldman Barrettb,e,f,g, Tor D. Wagerc,d, ⁎⁎ Marta Bianciardie,f, a Departments of Psychology and Neuroscience, Pomona College, Claremont, CA, USA b Department of Psychology, Northeastern University, Boston, MA, USA c Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, USA d The Institute of Cognitive Science, University of Colorado Boulder, Boulder, USA e Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Boston, MA, USA f Department of Radiology, Harvard Medical School, Boston, MA, USA g Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA ARTICLE INFO ABSTRACT Keywords: Arousal plays a central role in a wide variety of phenomena, including wakefulness, autonomic function, affect Brainstem and emotion. Despite its importance, it remains unclear as to how the neural mechanisms for arousal are or- Arousal ganized across them. In this article, we review neuroscience findings for three of the most common origins of Sleep arousal: wakeful arousal, autonomic arousal, and affective arousal. Our review makes two overarching points. Autonomic First, research conducted primarily in non-human animals underscores the importance of several subcortical Affect nuclei that contribute to various sources of arousal, motivating the need for an integrative framework. Thus, we Wakefulness outline an integrative neural reference space as a key first step in developing a more systematic understanding of central nervous system contributions to arousal.
    [Show full text]
  • What, If Anything, Is Rodent Prefrontal Cortex?
    Review Cognition and Behavior What, If Anything, Is Rodent Prefrontal Cortex? Mark Laubach,1 Linda M. Amarante,1 Kyra Swanson,1 and Samantha R. White1 https://doi.org/10.1523/ENEURO.0315-18.2018 1Department of Biology and Center for Behavioral Neuroscience, American University, Washington, DC 20016 Visual Abstract Prefrontal cortex (PFC) means different things to different people. In recent years, there has been a major increase in publications on the PFC, especially using mice. However, inconsistencies in the nomenclature and anatomical boundaries of PFC areas has made it difficult for researchers to compare data and interpret findings across species. We conducted a meta-analysis of publications on the PFC of humans and rodents and found dramatic differences in the focus of research on these species. In addition, we compared anatomical terms and criteria across several common rodent brain atlases and found inconsistencies among, and even within, leading atlases. To assess the impact of these issues on the research community, we conducted a survey of established PFC researchers on their use of anatomical terms and found little consensus. We report on the results of the survey and propose an alternative scheme for interpreting data Significance Statement Studies on prefrontal parts of the rodent cerebral cortex have appeared at an increasing rate in recent years. However, there has been no consensus on the terms used to describe the rodent prefrontal cortex (PFC) or how it relates to the PFC of monkeys and humans. To address these issues, we conducted a meta-analysis of publications on the PFC across species, a review of rodent brain atlases, a survey of PFC researchers on anatomic terms, and an analysis of how species differences in the corpus callosum might help relate PFC areas across species.
    [Show full text]
  • Regional Cerebral Glucose Utilization During Morphine Withdrawal in the Rat (Cerebral Metabolism/Limbic System/Drug Dependence) G
    Proc. Natl Acad. Sci. USA Vol. 79, pp. 3360-3364, May 1982 Neurobiology Regional cerebral glucose utilization during morphine withdrawal in the rat (cerebral metabolism/limbic system/drug dependence) G. F. WOOTEN, P. DISTEFANO, AND R. C. COLLINS Departments of Neurology and Pharmacology, Division of Clinical Neuropharmacology, Washington University School of Medicine, St. Louis, Missouri 63110 Communicated by Oliver H. Lowry, February 26, 1982 ABSTRACT Regional cerebral glucose utilization was studied precipitated morphine withdrawal in the rat. A preliminary re- by 2-deoxy['4C]glucose autoradiography in morphine-dependent port of this work has appeared as an abstract (17). rats and during naloxone-induced morphine withdrawal. In mor- phine-dependent rats, glucose utilization was increased compared MATERIALS AND METHODS with naive controls uniformly (23-54%) in hippocampus, dentate gyrus, and subiculum and reduced in frontal cortex, striatum, an- Preparation of Animals. Male Sprague-Dawley rats weigh- terior ventral thalamus, and medial habenular nucleus. On pre- ing 275-325 g were used. On experimental day 1, a single pellet cipitation ofmorphine withdrawal by subcutaneous administration containing 75 mg of morphine as free base was implanted sub- of naloxone at 0.5 mg/kg to morphine-dependent rats, glucose cutaneously under light ether anesthesia. On day 4, two pellets, utilization was increased in the central nucleus ofamygdala (51%), each containing 75 mg of morphine as free base, were im- lateral mammillary nucleus (40%), lateral habenular nucleus planted. On day 7, after being deprived of food for 12 hr, the (39%), medial mammillary nucleus (35%), and medial septal nu- rats were lightly anesthetized with 2% halothane, the pellets cleus (35%) (all, P < 0.01).
    [Show full text]
  • Sclocco Brainstim2019.Pdf
    Brain Stimulation xxx (xxxx) xxx Contents lists available at ScienceDirect Brain Stimulation journal homepage: http://www.journals.elsevier.com/brain-stimulation The influence of respiration on brainstem and cardiovagal response to auricular vagus nerve stimulation: A multimodal ultrahigh-field (7T) fMRI study * Roberta Sclocco a, b, , Ronald G. Garcia a, c, Norman W. Kettner b, Kylie Isenburg a, Harrison P. Fisher a, Catherine S. Hubbard a, Ilknur Ay a, Jonathan R. Polimeni a, Jill Goldstein a, c, d, Nikos Makris a, c, Nicola Toschi a, e, Riccardo Barbieri f, g, Vitaly Napadow a, b a Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA b Department of Radiology, Logan University, Chesterfield, MO, USA c Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA d Department of Obstetrics and Gynecology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA e Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy f Department of Electronics, Information and Bioengineering, Politecnico di Milano, Italy g Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA article info abstract Article history: Background: Brainstem-focused mechanisms supporting transcutaneous auricular VNS (taVNS) effects Received 12 September 2018 are not well understood, particularly in humans. We employed ultrahigh field (7T) fMRI and evaluated Received in revised form the influence of respiratory phase for optimal targeting, applying our respiratory-gated auricular vagal 2 January 2019 afferent nerve stimulation (RAVANS) technique. Accepted 6 February 2019 Hypothesis: We proposed that targeting of nucleus tractus solitarii (NTS) and cardiovagal modulation in Available online xxx response to taVNS stimuli would be enhanced when stimulation is delivered during a more receptive state, i.e.
    [Show full text]
  • The Virtual Mouse Brain: a Computational Neuroinformatics Platform to Study Whole Mouse Brain Dynamics
    bioRxiv preprint doi: https://doi.org/10.1101/123406; this version posted April 3, 2017. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY 4.0 International license. The Virtual Mouse Brain: a computational neuroinformatics platform to study whole mouse brain dynamics Francesca Melozzi, Marmaduke M. Woodman, Viktor K. Jirsa∗, Christophe Bernard∗ Aix Marseille Univ, Inserm, INS, Institut de Neurosciences des Systèmes, Marseille, France ∗equally contributing last authors Correspondence author: [email protected] Abstract Connectome-based modeling of large-scale brain network dynamics enables causal in silico interrogation of the brain’s structure-function relationship, necessitating the close integration of diverse neuroinformatics fields. Here we extend the open-source simulation software The Virtual Brain to whole mouse brain network modeling based on individual diffusion Magnetic Resonance Imaging (dMRI)-based or tracer-based detailed mouse connectomes. We provide practical examples on how to use The Virtual Mouse Brain to simulate brain activity, such as seizure propagation and the switching behavior of the resting state dynamics in health and disease. The Virtual Mouse Brain enables theoretically driven experimental planning and ways to test predictions in the numerous strains of mice available to study brain function in normal and pathological conditions. Introduction
    [Show full text]
  • Brain Structure and Function Related to Headache
    Review Cephalalgia 0(0) 1–26 ! International Headache Society 2018 Brain structure and function related Reprints and permissions: sagepub.co.uk/journalsPermissions.nav to headache: Brainstem structure and DOI: 10.1177/0333102418784698 function in headache journals.sagepub.com/home/cep Marta Vila-Pueyo1 , Jan Hoffmann2 , Marcela Romero-Reyes3 and Simon Akerman3 Abstract Objective: To review and discuss the literature relevant to the role of brainstem structure and function in headache. Background: Primary headache disorders, such as migraine and cluster headache, are considered disorders of the brain. As well as head-related pain, these headache disorders are also associated with other neurological symptoms, such as those related to sensory, homeostatic, autonomic, cognitive and affective processing that can all occur before, during or even after headache has ceased. Many imaging studies demonstrate activation in brainstem areas that appear specifically associated with headache disorders, especially migraine, which may be related to the mechanisms of many of these symptoms. This is further supported by preclinical studies, which demonstrate that modulation of specific brainstem nuclei alters sensory processing relevant to these symptoms, including headache, cranial autonomic responses and homeostatic mechanisms. Review focus: This review will specifically focus on the role of brainstem structures relevant to primary headaches, including medullary, pontine, and midbrain, and describe their functional role and how they relate to mechanisms
    [Show full text]
  • Rh]DIAZEPAM BINDING in MAMMALIAN CENTRAL NERVOUS SYSTEM: a PHARMACOLOGICAL CHARACTERIZATION
    0270-6474/81/0102-0218$02.00/O The Journal of Neuroscience Copyright 0 Society for Neuroscience Vol. 1, No. 2, pp. 218-225 Printed in U.S.A. February 1981 rH]DIAZEPAM BINDING IN MAMMALIAN CENTRAL NERVOUS SYSTEM: A PHARMACOLOGICAL CHARACTERIZATION DOROTHY W. GALLAGER,*, ’ PIERRE MALLORGA,* WOLFGANG OERTEL,# RICHARD HENNEBERRY,$ AND JOHN TALLMAN* * Biological Psychiatry Branch, National Institute of Mental Health, $Laboratory of Clinical Science, National Institute of Mental Health, and SLaboratory of Molecular Biology, National Institute of General Medical Sciences, Bethesda, Maryland 20205 Abstract Two types of benzodiazepine binding sites for [3H]diazepam in mammalian central nervous tissue were identified using selective in vitro tissue culture and in situ kainic acid lesion techniques. These two binding sites were pharmacologically distinguished by differential displacement of the [3H]diazepam radioligand using the centrally active benzodiazepine, clonazepam, and the centrally inactive benzodiazepine, R05-4864. Clonazepam-displaceable binding sites were found to be located principally on neuronal membranes, while R05-4864-displaceable binding sites were found to be located on non-neuronal elements. These pharmacological distinctions can be used to characterize the predominant cell types which bind benzodiazepines in nervous tissue. It is suggested that one quantitative measure of different cell populations is the ratio of clonazepam- to R05-4864-displaceable [3H]diazepam binding within a single neuronal tissue sample. Binding sites for benzodiazepines in brain which have sites on the kidney cells, although possessing a high high affinity and show saturability and stereospecificity affinity for [3H]diazepam, showed an entirely different have been described (Squires and Braestrup, 1977; Moh- pharmacological spectrum from the brain site.
    [Show full text]
  • The Role of the Parabrachial/Kolliker Fuse Respiratory Complex in the Control of Respiration
    THE ROLE OF THE PARABRACHIAL/KOLLIKER FUSE RESPIRATORY COMPLEX IN THE CONTROL OF RESPIRATION by JOYCE A. BOON B.Sc. Honors The University of Alberta, 1967 M.Sc. The University of British Columbia, 1970 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY in THE FACULTY OF GRADUATE STUDIES ZOOLOGY THE UNIVERSITY OF BRITISH COLUMBIA DECEMBER 2004 ©Joyce A. Boon, 2004 Abstract: My goal was to explore the role of the parabrachial/Kolliker Fuse region (PBrKF) of the pons in the production of "state-related" changes in breathing in rats. I hypothesized that the effects of changes in cortical activation state on breathing and respiratory sensitivity are relayed from the pontine reticular formation to the respiratory centres of the medulla via the PBrKF. I found that urethane anaesthetized Sprague Dawley rats spontaneously cycled between a cortically desynchronized state (State I) and a cortically synchronized state (State III), which were very similar to awake and slow wave sleep (SWS) states in unanaesthetized animals, based on EEG criteria. Urethane produced no significant respiratory depression or reduction in sensitivity to hypoxia or hypercapnia. However, breathing frequency (TR), tidal volume (VT) and total ventilation (V TOT) all increased on cortical activation, and changes in the relative sensitivity to hypoxia and hypercapnia with changes in state were similar to those seen in unanaesthetized rats. This indicated that the urethane model of sleep and wakefulness could be used to investigate the effects of cortical activation state on respiration. Since NMDA-type glutamate receptor mediated processes in the PBrKF are known to be important in respiratory control, I examined the role of the PBrKF as a relay site for state effects on respiration by blocking neurons with NMDA-type glutamate receptors with MK-801.
    [Show full text]
  • Pallial Origin of Basal Forebrain Cholinergic Neurons in the Nucleus
    ERRATUM 4565 Development 138, 4565 (2011) doi:10.1242/dev.074088 © 2011. Published by The Company of Biologists Ltd Pallial origin of basal forebrain cholinergic neurons in the nucleus basalis of Meynert and horizontal limb of the diagonal band nucleus Ana Pombero, Carlos Bueno, Laura Saglietti, Monica Rodenas, Jordi Guimera, Alexandro Bulfone and Salvador Martinez There was an error in the ePress version of Development 138, 4315-4326 published on 24 August 2011. In Fig. 7P, the P-values are not given in the legend. For region 2, P=0.02; for region 3, P=0.003. The final online issue and print copy are correct. We apologise to authors and readers for this error. DEVELOPMENT RESEARCH ARTICLE 4315 Development 138, 4315-4326 (2011) doi:10.1242/dev.069534 © 2011. Published by The Company of Biologists Ltd Pallial origin of basal forebrain cholinergic neurons in the nucleus basalis of Meynert and horizontal limb of the diagonal band nucleus Ana Pombero1, Carlos Bueno1, Laura Saglietti2, Monica Rodenas1, Jordi Guimera3, Alexandro Bulfone4 and Salvador Martinez1,* SUMMARY The majority of the cortical cholinergic innervation implicated in attention and memory originates in the nucleus basalis of Meynert and in the horizontal limb of the diagonal band nucleus of the basal prosencephalon. Functional alterations in this system give rise to neuropsychiatric disorders as well as to the cognitive alterations described in Parkinson and Alzheimer’s diseases. Despite the functional importance of these basal forebrain cholinergic neurons very little is known about their origin and development. Previous studies suggest that they originate in the medial ganglionic eminence of the telencephalic subpallium; however, our results identified Tbr1-expressing, reelin-positive neurons migrating from the ventral pallium to the subpallium that differentiate into cholinergic neurons in the basal forebrain nuclei projecting to the cortex.
    [Show full text]
  • High-Resolution Data-Driven Model of the Mouse Connectome
    RESEARCH High-resolution data-driven model of the mouse connectome Joseph E. Knox1,2, Kameron Decker Harris 2,3, Nile Graddis1, Jennifer D. Whitesell 1, Hongkui Zeng 1, Julie A. Harris1, Eric Shea-Brown 1,2, and Stefan Mihalas 1,2 1Allen Institute for Brain Science, Seattle, Washington, USA 2Applied Mathematics, University of Washington, Seattle, Washington, USA 3Computer Science and Engineering, University of Washington, Seattle, Washington, USA Keywords: Connectome, Whole-brain, Mouse an open access journal ABSTRACT Knowledge of mesoscopic brain connectivity is important for understanding inter- and intraregion information processing. Models of structural connectivity are typically constructed and analyzed with the assumption that regions are homogeneous. We instead use the Allen Mouse Brain Connectivity Atlas to construct a model of whole-brain connectivity at the scale of 100 µm voxels. The data consist of 428 anterograde tracing experiments in wild type C57BL/6J mice, mapping fluorescently labeled neuronal projections brain-wide. Inferring spatial connectivity with this dataset is underdetermined, since the approximately 2 × 105 source voxels outnumber the number of experiments. Citation: Knox, J. E., Harris, K. D., To address this issue, we assume that connection patterns and strengths vary smoothly Graddis, N., Whitesell, J. D., Zeng, H., Harris, J. A., Shea-Brown, E., & across major brain divisions. We model the connectivity at each voxel as a radial basis Mihalas, S. (2019). High-resolution data-driven model of the mouse kernel-weighted average of the projection patterns of nearby injections. The voxel model connectome. Network Neuroscience, outperforms a previous regional model in predicting held-out experiments and compared 3(1), 217–236.
    [Show full text]