Current Topics in Neurotoxicity Series Editors Richard M. Kostrzewa Trevor Archer For further volumes: http://www.springer.com/series/8791 Sandra Ceccatelli Michael Aschner ● Editors Methylmercury and Neurotoxicity Editors Sandra Ceccatelli, MD, PhD Michael Aschner, PhD Department of Neuroscience Departments of Pediatrics Karolinska Institutet Vanderbilt University Medical Center Stockholm, Sweden Nashville, TN, USA ISBN 978-1-4614-2382-9 e-ISBN 978-1-4614-2383-6 DOI 10.1007/978-1-4614-2383-6 Springer New York Dordrecht Heidelberg London Library of Congress Control Number: 2012932630 © Springer Science+Business Media, LLC 2012 All rights reserved. This work may not be translated or copied in whole or in part without the written permission of the publisher (Springer Science+Business Media, LLC, 233 Spring Street, New York, NY 10013, USA), except for brief excerpts in connection with reviews or scholarly analysis. Use in connection with any form of information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed is forbidden. The use in this publication of trade names, trademarks, service marks, and similar terms, even if they are not identifi ed as such, is not to be taken as an expression of opinion as to whether or not they are subject to proprietary rights. Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com) Preface This book intends to facilitate among its readers the understanding of the importance of mercury pollution in the environment and the health consequences associated with exposure to this metal. The knowledge on methylmercury (MeHg) toxicity collected over the years is undoubtedly robust creating an impression all that is to be learnt about this metal has already been accomplished. However, in large mea- sure, past knowledge has merely laid the ground for interesting questions that have yet to be fully addressed and concepts have yet to be deciphered. One of our major goals was to make a valiant attempt to include state-of-the-art information on the mechanisms of mercury toxicity, describing its effects on cultured cellular systems as well as in whole living organisms, starting from the lessons learned from the tragic events in Minamata Bay, Japan. A special focus of the book is on the neuro- toxic effects of MeHg. The nervous system is a unique organ that can be visualized as an assemblage of interrelated neural systems that regulate their activity in a dynamic and complex manner. An understanding at the cellular level is necessary to gather information on the structural and functional alterations induced by MeHg and how they possibly become unmasked and evident at the behavioral level. We organized the sequence of the 20 chapters having these considerations in mind. In Chaps. 1 – 3 timely epidemiological data are presented opening with an update on Minamata disease. Chapters 4 – 7 address the mechanisms of MeHg toxicity, with special emphasis on potential protective mechanisms, oxidative stress, and thyroid hormone impairments. Chapters 8 and 9 provide an overview of neurodevelop- mental toxicity studies, in monkeys and rodents respectively, focusing mostly on the behavioral alterations induced by MeHg. Chapter 10 discusses the recent evidence for epigenetic changes induced by exposure to MeHg and other toxic agents. Chapters 11 – 16 are devoted to in vitro studies on MeHg mechanisms of toxicity in various cell types, including neurons, glia, and neural stem cells. In Chaps. 17 – 19 data from “alternative” in vivo models are reviewed to show relevant and novel information about the mechanisms of MeHg toxicity can be gathered from phylogenetically lower animals. We close the book with the Chap. 20 dis- cussing how fi sh-eating wildlife can be used for public health strategies to assess the neurotoxic risks of MeHg. v vi Preface We are hopeful that this multidisciplinary approach will provide the reader with an appreciation on how various methods can be applied to address the challenges associated with MeHg poisoning. We are thankful to the contributors for the highly informative chapters that should enlighten both the novice and the experienced researcher, providing them with renewed sense on contemporary issues in mercury research and its adverse health effects on both the developing and mature nervous system. We sincerely hope that the series of chapters compiled herein will amass a renewed wave of interest transforming the ideas presented into mechanistically driven and cost-effective research that will further enhance the understanding and prevention of mercury-induced ill effects. Stockholm, Sweden Sandra Ceccatelli, MD, PhD Nashville, TN, USA Michael Aschner, PhD Contents 1 Epidemiological Update of Methylmercury and Minamata Disease ........................................................................... 1 Noriyuki Hachiya 2 Epidemiological Evidence on Methylmercury Neurotoxicity ............ 13 Jordi Julvez, Takashi Yorifuji, Anna L. Choi, and Philippe Grandjean 3 The Impact of Prenatal Exposure to Methylmercury and Maternal Nutritional Status on Child Development: Findings from the Seychelles Child Development Study .................... 37 Edwin van Wijngaarden, Gary J. Myers, Conrad F. Shamlaye, J.J. Strain, and Philip W. Davidson 4 Methylmercury and Fish Nutrients in Experimental Models ............ 55 M. Christopher Newland 5 Mercury-Dependent Inhibition of Selenoenzymes and Mercury Toxicity............................................................................. 91 Nicholas V.C. Ralston, Alexander Azenkeng, and Laura J. Raymond 6 Redox State in Mediating Methylmercury Neurotoxicity .................. 101 Marcelo Farina, Michael Aschner, and João B.T. Rocha 7 The Role of Thyroid Modulation by Methylmercury in Developmental Neurotoxicity ........................................................... 127 Kouki Mori and Katsumi Yoshida 8 Effects of Developmental Methylmercury Exposure on Nervous System Function in Monkeys ............................................ 143 Deborah C. Rice vii viii Contents 9 Behavioural Effects of Exposure to Methylmercury During Early Development ................................................................... 163 Natalia Onishchenko, Stefan Spulber, and Sandra Ceccatelli 10 Epigenetics of Environmental Contaminants ...................................... 199 Natalia Onishchenko, Nina N. Karpova, and Eero Castrén 11 Methylmercury Neurotoxicity: A Synopsis of In Vitro Effects .......... 219 Lucio G. Costa and Gennaro Giordano 12 Effects of Methylmercury on Cellular Signal Transduction Systems ............................................................................ 229 Fusako Usuki and Masatake Fujimura 13 Methylmercury Neurotoxicity: Why Are some Cells more Vulnerable than Others?.............................................................. 241 Parvinder Kaur, Michael Aschner, and Tore Syversen 14 In Vitro Models for Methylmercury Neurotoxicity: Effects on Glutamatergic Cerebellar Granule Neurons ..................... 259 Cristina Suñol and Eduard Rodríguez-Farré 15 Methylmercury and Glia Cells.............................................................. 271 Yin Zhaobao, Marcelo Farina, João B.T. Rocha, Parvinder Kaur, Tore Syversen, and Michael Aschner 16 Methylmercury and Neural Stem Cells ............................................... 287 Karin Edoff and Sandra Ceccatelli 17 Contributions of the Drosophila Model to Understanding Methylmercury Effects on Development ............................................. 303 Matthew D. Rand 18 Caenorhabditis elegans as a Predictive Model for Methylmercury-Induced Neurotoxicity ......................................... 319 Kirsten J. Helmcke and Michael Aschner 19 Zebrafi sh as a Model for Methylmercury Neurotoxicity .................... 335 Daniel N. Weber, Rebekah H. Klingler, and Michael J. Carvan III 20 Piscivorous Mammalian Wildlife as Sentinels of Methylmercury Exposure and Neurotoxicity in Humans ............................................................................................... 357 Niladri Basu Index ................................................................................................................ 371 Contributors Michael Aschner , PhD Departments of Pediatrics and Pharmacology, and the Kennedy Center for Research on Human Development , Vanderbilt University Medical Center , Nashville , TN , USA Alexander Azenkeng , PhD, BS Energy & Environmental Research Center , University of North Dakota , Grand Forks , ND , USA Niladri Basu , PhD Department of Environmental Health Sciences, School of Public Health , University of Michigan , Ann Arbor , MI , USA Michael J. Carvan III, PhD School of Freshwater Sciences , University of Wisconsin-Milwaukee , Milwaukee , WI , USA Eero Castrén , MD, PhD Neuroscience Center , University of Helsinki , Helsinki , F inland Sandra Ceccatelli , MD, PhD Department of Neuroscience , Karolinska Institutet , Stockholm , Sweden Anna L. Choi , ScD Department of Environmental Health , Harvard School of Public Health , Boston , MA , USA Lucio G. Costa , MD Department of Environmental and Occupational Health Sciences , University of Washington , Seattle , WA , USA Department of Human Anatomy, Pharmacology and Forensic Science , University of Parma Medical School , Parma , Italy Philip W. Davidson , PhD University of Rochester School of Medicine and Dentistry , Rochester , NY , USA Karin Edoff , PhD Department of Neuroscience , Karolinska Institutet , Stockholm , Sweden ix