In this book you will see how commonly performed operations can be found to be useless or even harmful when properly evaluated. That these claims come from an experienced, practicing orthopedic surgeon who performs many of these operations himself, makes the unsettling argument particularly compelling. Of course no surgeon is recommending invasive surgery in bad faith, but Ian Harris argues that the evidence for the success for many common operations, including knee arthroscopies, back fusion or cardiac stenting, become current accepted practice without full examination of the evidence.

    Two scientists explore the potential of a revolutionary genetics technology capable of easily and affordably manipulating DNA in human embryos to prevent specific diseases, addressing key concerns about related ethical and societal repercussions.

    Indeed, these tiny structures inside our cells are important beyond imagining. Without mitochondria, we would have no cell suicide, no sculpting of embryonic shape, no sexes, no menopause, no aging.In this fascinating and thought-provoking book, Nick Lane brings together the latest research in this exciting field to show how our growing insight into mitochondria has shed light on how complex life evolved, why sex arose (why don't we just bud?), and why we age and die. These findings are of fundamental importance, both in understanding life on Earth, but also in controlling our own illnesses, and delaying our degeneration and death. Readers learn that two billion years ago, mitochondria were probably bacteria living independent lives and that their capture within larger cells was a turning point in the evolution of life, enabling the development of complex organisms. Lane describes how mitochondria have their own DNA and that its genes mutate much faster than those in the nucleus. This high mutation rate lies behind our aging and certain congenital diseases. The latest research suggests that mitochondria play a key role in degenerative diseases such as cancer. We also discover that mitochondrial DNA is passed down almost exclusively via the female line. That's why it has been used by some researchers to trace human ancestry daughter-to-mother, to "Mitochondrial Eve," giving us vital information about our evolutionary history.Written by Nick Lane, a rising star in popular science, Power, Sex, Suicide is the first book for general readers on the nature and function of these tiny, yet fascinating structures.

    But by itself, DNA is just an inert blueprint for life. It is the ribosome--an enormous molecular machine made up of a million atoms--that makes DNA come to life, turning our genetic code into proteins and therefore into us. Gene Machine is an insider account of the race for the structure of the ribosome, a fundamental discovery that both advances our knowledge of all life and could lead to the development of better antibiotics against life-threatening diseases. But this is also a human story of Ramakrishnan's unlikely journey, from his first fumbling experiments in a biology lab to being the dark horse in a fierce competition with some of the world's best scientists. In the end, Gene Machine is a frank insider's account of the pursuit of high-stakes science.

    This edition retains the essence of the original, but has been updated with new features and integrated colour illustrations.

    The beginning chapters introduce basic chemical and biological concepts to provide students with the framework they need to comprehend physiological principles. The chapters that follow promote conceptual understanding rather than rote memorization of facts. Health applications are included throughout the book to heighten interest, deepen understanding of physiological concepts, and help students relate the material to their individual career goals. Every effort has been made to help students integrate related concepts and understand the relationships between anatomical structures and their functions.

    It develops an understanding of function and evolution into the discussion of anatomy of the various systems.

    / Eric P. Widmaier, Hershel Raff, Kevin T. Strang.Consists of animations and, learning activities such as quizzes and interactive diagrams.

    This new edition, written with five new authors, has been brought fully up to date, and incorporates insights very recently derived from genome sequencing in a variety of organisms. The book is an authoritative and comprehensive survey of the fundamentals of molecular biology, from basic mechanisms to the elaborate role of gene regulation in embryonic development and evolution. Although updated, the twentyone chapters of the new edition retain the distinctive and celebrated features of the original work, including introductory chapters on the history of genetics and molecular biology and an emphasis throughout on the chemical underpinnings of molecular biology. The new team of authors brings to this edition awardwinning teaching experience and outstanding research achievements. By revealing the intellectual framework and experimental approaches that made new discoveries in the field possible, the new edition highlights the significance of the molecular approach for all of biology.

    Beginning with the above questions, she began informally researching every affliction that she encountered in humans to learn whether it happened with animals, too. And usually, it did: dinosaurs suffered from brain cancer, koalas can catch chlamydia, reindeer seek narcotic escape in hallucinogenic mushrooms, stallions self-mutilate, and gorillas experience clinical depression. Natterson-Horowitz and science writer Kathryn Bowers have dubbed this pan-species approach to medicine zoobiquity. Here, they present a revelatory understanding of what animals can teach us about the human body and mind, exploring how animal and human commonality can be used to diagnose, treat, and heal patients of all species.

    Now in full color for easier referencing, this New Edition continues the tradition, incorporating a wealth of exciting updates and changes-ensuring you have access to today's authoritative knowledge to best diagnose and treat every pediatric patient you see. Whether you're treating patients in the office or in the hospital, or preparing for the boards, Nelson Textbook of Pediatrics, 18th Edition is your comprehensive guide to providing the best possible care.Get an enhanced focus on general pediatrics with editorial contributions from new editor Dr. Bonita F. Stanton.Treat your inpatient and ambulatory patients more effectively with the absolute latest on new topics such as quality improvement and patient care safety . school violence and bullying . preventive measures . vitamin deficiencies . adolescent rape . effect of war on children . and more.Improve your therapeutic skills with the newest knowledge on the principles of antibiotic therapy . antiviral therapy . antiparasitic therapy . antimycobacterial therapy . and others.Understand the principles of therapy and which drugs and dosages to prescribe for every disease.Locate key content more easily and identify clinical conditions quicker thanks to a new full-color design and full-color photographs.Get an enhanced focus on general pediatrics with editorial contributions from new editor Dr. Bonita F. Stanton.Treat your inpatient and ambulatory patients more effectively with the absolute latest on new topics such as quality improvement and patient care safety *school violence and bullying * preventive measures * vitamin deficiencies * adolescent rape * effect of war on children * and more.Improve your therapeutic skills with the newest knowledge on the principles of antibiotic therapy * antiviral therapy * antiparasitic therapy * antimycobacterial therapy * and others.Understand the principles of therapy and which drugs and dosages to prescribe for every disease.Locate key content more easily and identify clinical conditions quicker thanks to a new full-color design and full-color photographs.

    Reflecting the state of the art in medical practice, this edition delivers the latest strategies for understanding, diagnosing and managing disease.

    The top-selling CS review book written by students and IMGs who recently passed 100+ high-yield minicases by chief complaint 30 complete cases simulate the exam experience Contains new Patient Encounters, including telephone interviews Perfect for group or solo study YOUR COMPLETE CS SURVIVAL GUIDE FROM THE AUTHORS OF FIRST AID FOR THE USMLE STEP 1 INSIDER ADVICE FOR STEP 2 CS SUCCESS New miniguide shows US students and IMGs how best to use this book Revised by test veterans to reflect the 2005--2006 exam experience Each complete case features standardized patient checklists and a recommended clinical approach Minicases represent the major chief complaints and diagnoses seen on the Step 2 CS Proven strategies for the patient encounter and patient note High-yield, must-know facts on patient diagnosis and workup.

    Turn to any page, and you'll find essential point-of-care guidance on all the major conditions seen in clinical medicine. Completely updated to reflect all the major advances and new clinical developments, the new edition of the Manual is the most indispensable yet. It continues to focus on diagnosis and therapy with an emphasis on patient care and offers authoritative, high-yield coverage of: Etiology and epidemiology Clinically relevant pathophysiology Signs & Symptoms o Differential Diagnosis Physical and Laboratory Findings Therapeutics o Practice GuidelinesNEW FEATURESFull-color presentation for the first time!Full-color images of clinical conditions encountered in dermatology, cardiology, and eye diseases New chapters on end-of-life care, congenital heart disease in the adult patient, non-invasive cardiac examination, and metabolic syndromeLook for these other great Harrison's titles:Harrison's Principles of Internal Medicine, 17eHarrison's Online available through Accessmedicine.com

    News of both the Ice Man's discovery and his age, which was put at over five thousand years, fascinated scientists and newspapers throughout the world. But what made Sykes's story particularly revelatory was his successful identification of a genetic descendant of the Ice Man, a woman living in Great Britain today. How was Sykes able to locate a living relative of a man who died thousands of years ago?In The Seven Daughters of Eve, he gives us a firsthand account of his research into a remarkable gene, which passes undiluted from generation to generation through the maternal line. After plotting thousands of DNA sequences from all over the world, Sykes found that they clustered around a handful of distinct groups. Among Europeans and North American Caucasians, there are, in fact, only seven. This conclusion was staggering: almost everyone of native European descent, wherever they may live throughout the world, can trace their ancestry back to one of seven women, the Seven Daughters of Eve.Naming them Ursula, Xenia, Helena, Velda, Tara, Katrine, and Jasmine, Sykes has created portraits of their disparate worlds by mapping the migratory patterns followed by millions of their ancestors. In reading the stories of these seven women, we learn exactly how our origins can be traced, how and where our ancient genetic ancestors lived, and how we are each living proof of the almost indestructible strands of DNA, which have survived over so many thousands of years. Indeed, The Seven Daughters of Eve is filled with dramatic stories: from Sykes's identification, using DNA samples from two living relatives, of the remains of Tsar Nicholas and Tsaress Alexandra, to the Caribbean woman whose family had been sold into slavery centuries before and whose ancestry Sykes was able to trace back to the Eastern coast of central Africa. Ultimately, Sykes's investigation reveals that, as a race, what humans have in common is more deeply embedded than what separates us.