FETAL ALCOHOL SYNDROME --------AND------ FETAL ALCOHOL EFFECTS ETAL ALCOHOL SYNDROME -------AND------- FETAL ALCOHOL EFFECTS Ernest L. Abel Research Institute on Alcoholism Buffalo, New York PLENUM PRESS • NEW YORK AND LONDON Library of Congress Cataloging in Publication Data Abel, Ernest L., 1943- Fetal alcohol syndrome and fetal alcohol effects. Includes bibliographical references and index. I. Fetal alcohol syndrome. 2. Fetus-Effect of drugs on. I. Title. [DNLM: I. Fetal alcohol syndrome. 2. Alcohol drinking-In pregnancy. 3. Alcoholic beverages Adverse effects. 4. Fetus-Drug effects. WQ 211 A\39f] RG629.F45A34 1984 618.3'68 83-26898 ISBN-l3: 978-1-4612-9662-1 e-ISBN-l3: 978-1-4613-2669-4 DOl: 10.1007/978-1-4613-2669-4 First Printing-April 1984 Second Printing-March 1987 Third Printing-May "1993 © 1984 Ernest L. Abel Softcover reprint of the hardcover 1s t edition 1984 Plenum Press is a Division of Plenum Publishing Corporation 233 Spring Street, New York, N.Y. 10013 All rights reserved No part of this book may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, microfilming, recording, or otherwise, without written permission from the Publisher Preface I have written this book because I felt there was a need to bring together in one place the vast amount of research that has been published in the past 10 years concerning alcohol's effects on the conceptus. My hope is that this book will be of value to the many clinicians, basic research scientists, social workers, and others who are interested in this important issue. The number of such publications continues to grow each year, and it was a very difficult task to review even a proportion of them completely. While I have cited many of these research studies, only those that in my very subjective opinion warranted extended coverage were discussed. In this regard, much of my . ask was facilitated by the many excellent reviews that have already been written. To those whose important contributions have not been discussed or cited, I offer my sincere apologies. Omission of these publications in most cases reflects my own personal interests or awareness, rather than merit. In the writing of a book such as this, there are a number of people to whom a special thanks is owing. These are Hebe Greizerstein, Carrie Randall, Edward Riley, and Robert Sokol, for reading various chapters of the manuscript and suggesting improvements. Any remaining errors or biased opinions are mine, not theirs. I also thank Carrie Randall, Robert Sokol, Phillip Spiegel, Kathy Sulik and James West for providing photographs for the text. Diane Augustino, li brarian of the Research Institute on Alcoholism, was, as always, of immense help in locating research publications that might otherwise have been unobtainable. v Contents Chapter 1. Is Fetal Alcohol Syndrome a New Discovery? The Biblical and Postbiblical Eras 2 Greece and Rome 4 The Middle Ages 9 Early Epidemiological Studies 16 Elderton-Pearson Controversy 18 Early "Animal Model" Studies 20 References 25 Chapter 2. Pharmacology of Alcohol Relating to Pregnancy and Lactation 29 Absorption and Route of Administration 29 Distribution 31 Distribution to the Fetus 33 Distribution to the Neonate 38 Metabolism 38 Elimination 41 Toxic Blood Alcohol Levels 41 Withdrawal 42 References 42 Chapter 3. Consumption Patterns for Alcohol during Pregnancy 47 Total per capita Consumption 47 Consumption during Pregnancy 51 The "Perinatal-Protective" Mechanism 53 At-Risk Levels of Consumption 55 References 55 vii viii Contents Chapter 4. Acute Effects of Alcohol on the Fetus 59 References 61 Chapter 5. Adverse Consequences of Drinking during Pregnancy 63 Spontaneous Abortion 63 Alcohol versus the Alcoholic 65 Stillbirths 67 Neonatal Mortality 70 References 70 Chapter 6. Incidence of Fetal Alcohol Syndrome and Fetal Alcohol Effects 73 Estimated Incidence 74 References 81 Chapter 7. Intrauterine Growth Retardation 83 Clinical and Epidemiological Studies 83 Preterm Delivery 92 Hormonal Factors in Growth 94 Amino Acids, DNA, Protein 97 Protein Synthesis and Accretion 99 Trace Elements 101 Postnatal Growth Retardation 103 Summary 104 References 104 Chapter 8. Head and Facial Abnormalities 113 References 120 Chapter 9. Disorders of Bodily Organs 123 Cardiac Disorders 123 Kidney and Urogenital Tract Anomalies 123 Liver Anomalies 125 Genital Anomalies 126 Limb and Joint Anomalies and Other Skeletal Disorders 128 Neural-Tube Defects 133 Carcinogenesis 133 References 134 Contents ix Chapter 10. Disorders of the Central Nervous System 139 Behavioral Deficits 139 Structural and Biochemical Changes in the Brain 148 References 159 Chapter 11. Risk Factors for Fetal Alcohol Syndrome/Fetal Alcohol Effects 165 Maternal Age 165 Nutritional Status 166 Parity 167 Length of Gestation 169 Birth Interval 169 Sex Differences 169 Marital Status 170 Paternal Factors 170 Placenta Size and Function 172 Maternal Infections and Complications of Pregnancy 172 Hormonal Imbalances and Endocrinopathy 173 Genetic Factors 173 MUltiple Drug Use 175 Poverty and Physical Stress 177 Obstetric Factors 177 Obstetric Medication 178 References 178 Chapter 12. ' 'Animal Models" for Fetal Alcohol Effects 183 Studies in Animals 184 Methodological Issues 188 References 203 Chapter 13. Mechanisms of Action 207 Alcohol-Induced Hypoxia 208 References 210 Chapter 14. Fetal Alcohol Syndrome: A Case of Prenatal Child Abuse? 213 Fetal Alcohol Syndrome in the Canadian Courts 213 "Diminished Life" 214 Fetal Alcohol Syndrome and Negligence 216 References 217 x Contents Chapter 15. Prevention of Fetal Alcohol Syndrome 219 The Labeling Issue 220 National Education Efforts 224 Other National Efforts 226 Public Information at the State Level 229 Evaluation of Information/Education Campaigns 235 Summary and Conclusions 238 Identification and Treatment of Alcohol-Related Problems in Prenatal Clinics 238 References 240 Index 243 CHAPTER 1 Is Fetal Alcohol Syndrome a New Discovery? Whenever a common substance is suddenly found to be a health hazard, and especially a possible cause of birth defects, many people begin to wonder why it took so long for such a hazard to be discovered. Alcohol is no exception to this general rule. When the fetal alcohol syndrome was first brought to international attention in 1973 by Jones and Smith,I,2 many authors, including Jones and Smith them selves, claimed that awareness of alcohol's potential to cause birth defects was nothing new. Jones and Smith2 cited some ancient Greek authors and a Carthagi nian law that seemed to indicate that the dangers of drinking during pregnancy were clearly perceived in the ancient world. Other authors subsequently noted what they believed to be further evidence of such awareness during the course of history. This chapter examines the various epochs in the alleged history of the "fetal alcohol syndrome." I use the word alleged intentionally since I believe that a critical examination of the evidence will show that nearly all the statements investing the ancient and medieval past with precognition of this disorder are wrong. Most are simply repetitions of what has been written before. thus per petuating the error. In those instances when there does seem -to be an awareness of "fetal alcohol effects" in the ancient and medieval world, the emphasis is almost entirely on the father. Moreover, these comments are not based on em pirical evidence but are deductive-arising from alcohol's observable effects on spenn production and libido. It is not until the late 19th century that a general appreciation of the link between drinking during pregnancy and "fetal alcohol effects" appears. Even so, why did it take so long for the medical profession and the general public to become aware of the potential dangers of drinking during pregnancy? 1 2 Chapter 1 The answer, is that the evidence prior to Jones and Smith was far from convincing, and in some cases it was interpreted as showing that fetal alcohol damage was generally a good thing for mankind as a whole! The Biblical and Postbiblical Eras The biblical passage that is most often cited as proof that the ancient Hebrews were aware of alcohol's injurious effects on the fetus is Judges 13:3-4. This is an excerpt from the saga of Samson in which an angel appears to the hero's mother before she is pregnant and cautions: Behold now, thou art barren, and bearest not: but thou shalt conceive, and bear a son. Now therefore beware, I pray thee, and drink not wine nor strong drink, and eat not any unclean thing.3 The reason for this injunction is not that the storyteller was aware of alco hol's potential to produce spontaneous abortion or birth anomalies. Rather it is because Samson is foreordained to live the austere life of a Nazirite, as stated in the next verse (Judg. 13:5)3: .. for the child shall be a Nazirite unto God from the womb ... The Nazirite vow, as described in the book of Numbers (6:2-6)3 prohibited those who took it from all intoxicants, from cutting their hair, and from touching dead bodies. There is no interpretation or commentary of the passage in Judges 13:3-4 in the Talmud or any other commentary indicating that this passage is to be consid ered in any way other than that binding Samson as a Nazirite. The reason his mother is enjoined from taking alcohol is that Samson was to be a Nazirite from the moment of his conception ("from the womb"). While this passage indicates a possible awareness that alcohol could pass from the mother's body to the conceptus, it does not presage any awareness that such passage could be damag ing to the conceptus. Feldman, in his book, The Jewish Child,4 cites two Talmudic passages (Sabbath 80b and Moed Katon 9b) that he interpreted as possibly showing that paternal drinking could lead to hirsutism in children. The passage from the tractate Sabbath (80b) , 5 however, states only that Rabbi Bibi had a daughter that he treated with a depilatory. Rabbi Nachman says that he didn't have to do so to his daughters and explains: "As for R. Bibi who drank strong liquor, his daugh-
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