"Who are the mutants? We are all mutants. But some of us are more mutant than others."
Variety, even deformity, may seem like an unlikely route by which to approach normality, even perfection. Yet much of what we know about the mechanisms of human development, growth, and aging comes from the study of people who are afflicted with congenital diseases, most of which have genetic causes. Congenital abnormalities reveal not only errors within the womb, but also our evolutionary history.
In Mutants, Armand Marie Leroi gives a brilliant narrative account of our genetic grammar and the people whose bodies have revealed it, balancing both the science and the stories behind some of history's most captivating figures-including a French convent girl who found herself changing sex upon puberty; children who, echoing Homer's Cyclops, are born with a single eye in the middle of their foreheads; a village of long-lived Croatian dwarves; a hairy family who was kept at the Burmese royal court for four generations (and from whom Darwin took one of his keenest insights into heredity); and the ostrich-footed Wadoma of the Zambezi River Valley.
Stepping effortlessly from myth to molecular biology, this elegant, humane, and illuminating book is about us all.
Armand Marie Leroi, in addition to many technical articles on evolutionary and developmental biology, has written for the London Review of Books and Times Literary Supplement. He was appointed Reader in Evolutionary Developmental Biology at Imperial College and, in 2001, was awarded the Scientist for the New Century medal by the Royal Institution of Great Britain. Mutants is his first book.From The New England Journal of Medicine:
This book is "about the making of the human body." Armand Leroi, a reader in evolutionary developmental biology at London's Imperial College, thus joins the multitude of writers who are attempting to gratify our narcissistic focus on "the body." His slant is genetic, and his approach is to employ the story of variation, hence the title and subtitle of his book. Leroi takes vignettes from famous historical cases of human "mutants" to provide interest and background for his discussions of the principles of developmental biology (what used to be called "embryology"). The nature of the subject leads him to emphasize genes and morphogenesis, certainly a fascinating area in recent years. Leroi starts his discussion with famous "monsters" in history -- some mythical, some well known, and some obscure, but all quite interesting. Famous examples include cases of conjoined twins, persons with hypertrichosis, and cyclops. The author is at his best in his lively writing regarding the historical context of these cases. He takes up examples of limb malformations, disorders of stature, and cases of intersex (more commonly known as hermaphroditism). The mysteries and medical theorizing of the past are presented in a sensitive voice and are followed by explanations of the current biologic thinking about the processes that appear to underlie these disorders. Leroi's accounts of the human lives touched by these variations are revealing of our historical biases. For example, he illuminates the curious association between ectrodactyly (the lobster-claw syndrome) and the cruel punishment of two religious dissenters in 1685 and shows how the connection reflects the pervasive belief that malformed children are born as retribution for parental transgression. These stories exhibit the wide range of human variation as well as the sometimes astonishing ways in which the affected human beings have managed to fit within their culture and society. In trying to craft scientific explanations that fit the tone and detail of the historical account, the author runs into a few problems. It is always difficult to convey complex ideas about, say, transcription factors and their role in sex determination to a readership that presumably does not have a detailed knowledge of the entire process of transcription. As the biologist Lewis Wolpert has noted, much of modern science is counterintuitive, so Leroi's task is especially daunting. He has attempted much, but it seems to me that his explanations are apt to be more mystifying than edifying to many readers. To the student of current biology, these passages will be a useful summary, but for the hypothetical "general, well-informed" reader, discussions of morphogens, cell receptors, and aromatase are likely to be underappreciated. Although Leroi simplifies and streamlines as best he can, there are some places where this approach can seem to be misleading -- for example, when he asserts early in the book that mutations are "deficiencies in particular genes." To be fair, toward the end of the book, he tries to reverse this rather flat-footed definition of mutation. Sometimes, too, the distinction between genetic causes and nongenetic developmental accidents (e.g., virus infections) is not made sufficiently clear. Read this book for the fascinating tales of human variation and the lives of those affected; the clinical genetics may also be of interest. William C. Summers, M.D., Ph.D.
Copyright © 2004 Massachusetts Medical Society. All rights reserved. The New England Journal of Medicine is a registered trademark of the MMS.
Descrizione libro Viking Adult. Condizione libro: Brand New. Ships from USA. FREE domestic shipping. Codice libro della libreria 0670031100
Descrizione libro Viking Adult, 2003. Hardcover. Condizione libro: New. book. Codice libro della libreria 0670031100
Descrizione libro Viking Adult, 2003. Hardcover. Condizione libro: New. Codice libro della libreria DADAX0670031100
Descrizione libro Viking Adult, 2003. Hardcover. Condizione libro: New. Codice libro della libreria P110670031100
Descrizione libro Viking Adult. Hardcover. Condizione libro: New. 0670031100 New Condition. Codice libro della libreria NEW6.0321655