Bone Adaptation in a Mouse Model of Reduced Sensory Nerve Function

Bone Adaptation in a Mouse Model of Reduced Sensory Nerve Function

Author: Mollie Alexandria Heffner

Publisher:

Published: 2016

Total Pages:

ISBN-13: 9781339825823

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Long bones are richly innervated with a presence of sensory neurons in the periosteum, cortical bone, endosteum and bone marrow. Emerging evidence suggests that these nerves are involved in more than simple pain transmission. Nerve damage not only affects bone during development, but also contributes to bone loss following injury. As bone cells express receptors for several neurotransmitters, nerves may regulate bone metabolism through local release of neuropeptides. The objective of this research was to elucidate the contribution of peripheral sensory nerves to bone adaptation. We used a chemical model of decreased nerve function, administering a naturally occurring compound, capsaicin, to neonatal mice. With the use of different imaging modalities and mechanical testing techniques, we assessed the effects of denervation on skeletal development. We next used a model of increased mechanical loading (tibial compression) to investigate how denervation alters the bone response to an anabolic stimulus. Finally, we measured changes in bone concentrations of neuropeptides CGRP and substance P in response to increased loading (tibial compression) and decreased loading (hindlimb unloading). Capsaicin treatment resulted in shorter femurs possessing thinner trabeculae. Denervation also altered the bone response to increased mechanical loading, with capsaicin-treated mice exhibiting greater changes in bone mass and mineral apposition rates. Neuropeptide concentrations were also changed by the mechanical environment with an increase in CGRP following tibial compression. Our findings indicate an important role for sensory nerves in bone metabolism, and suggest a potential target for therapeutics aimed at bone diseases characterized by abnormal bone formation.


Marcus and Feldman's Osteoporosis

Marcus and Feldman's Osteoporosis

Author: David W. Dempster

Publisher: Academic Press

Published: 2020-10-08

Total Pages: 1950

ISBN-13: 0128130741

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Marcus and Feldman's Osteoporosis, Fifth Edition, is the most comprehensive, authoritative reference on this disease. Led by a new editorial team, this fifth edition offers critical information on reproductive and hormonal risk factors, new therapeutics, ethnicity, nutrition, therapeutics, management and economics, comprising a tremendous wealth of knowledge in a single source not found elsewhere. Written by renowned experts in the field, this two-volume reference is a must-have for biomedical researchers, research clinicians, fellows, academic and medical libraries, and any company involved in osteoporosis drug research and development. - Summarizes the latest research in bone biology and translational applications in a range of new therapeutic agents, including essential updates on therapeutic uses of calcium, vitamin D, SERMS, bisphosphonates, parathyroid hormone, and new therapeutic agents - Recognizes the critical importance of new signaling pathways for bone health, including Wnt, OPG and RANK, of interest to both researchers who study bone biology and clinicians who treat osteoporosis - Offers new insights into osteoporosis associated with menopause, pre-menopause, chronic kidney disease, diabetes, HIV and other immune disorders


The Aging Skeleton

The Aging Skeleton

Author: Clifford Rosen

Publisher: Elsevier

Published: 1999-08-19

Total Pages: 667

ISBN-13: 0080542379

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The Aging Skeleton is a comprehensive and timely book on all aspects of the skeleton as it ages, including basic mechanisms and pathways as well as pathobiology. Chapters cover general aspects and models of aging, determinants and maintenance of peak bone mass, mechanisms of age-related bone loss, quantifiable manifestations of age-related bone loss, fractures, and therapeutics. - Covers all aspects of the aging skeleton in one comprehensive volume - Looks at the influence of genetics, nutrition, environment, hormones, and other factors on bone mass - Provides a thorough discussion of fractures, one of the major consequences of the aging skeleton - Reviews current therapeutic approaches and methods - Written by internationally renowned authors and edited by leaders in the field - Is the only book available on this subject


Musculoskeletal Disorders and the Workplace

Musculoskeletal Disorders and the Workplace

Author: Institute of Medicine

Publisher: National Academies Press

Published: 2001-05-24

Total Pages: 510

ISBN-13: 0309132991

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Every year workers' low-back, hand, and arm problems lead to time away from jobs and reduce the nation's economic productivity. The connection of these problems to workplace activities-from carrying boxes to lifting patients to pounding computer keyboards-is the subject of major disagreements among workers, employers, advocacy groups, and researchers. Musculoskeletal Disorders and the Workplace examines the scientific basis for connecting musculoskeletal disorders with the workplace, considering people, job tasks, and work environments. A multidisciplinary panel draws conclusions about the likelihood of causal links and the effectiveness of various intervention strategies. The panel also offers recommendations for what actions can be considered on the basis of current information and for closing information gaps. This book presents the latest information on the prevalence, incidence, and costs of musculoskeletal disorders and identifies factors that influence injury reporting. It reviews the broad scope of evidence: epidemiological studies of physical and psychosocial variables, basic biology, biomechanics, and physical and behavioral responses to stress. Given the magnitude of the problem-approximately 1 million people miss some work each year-and the current trends in workplace practices, this volume will be a must for advocates for workplace health, policy makers, employers, employees, medical professionals, engineers, lawyers, and labor officials.


Methods of Behavior Analysis in Neuroscience

Methods of Behavior Analysis in Neuroscience

Author: Jerry J. Buccafusco

Publisher: CRC Press

Published: 2000-08-29

Total Pages: 341

ISBN-13: 1420041819

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Using the most well-studied behavioral analyses of animal subjects to promote a better understanding of the effects of disease and the effects of new therapeutic treatments on human cognition, Methods of Behavior Analysis in Neuroscience provides a reference manual for molecular and cellular research scientists in both academia and the pharmaceutic


Recapturing a Future for Space Exploration

Recapturing a Future for Space Exploration

Author: National Research Council

Publisher: National Academies Press

Published: 2012-01-30

Total Pages: 464

ISBN-13: 0309163846

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More than four decades have passed since a human first set foot on the Moon. Great strides have been made in our understanding of what is required to support an enduring human presence in space, as evidenced by progressively more advanced orbiting human outposts, culminating in the current International Space Station (ISS). However, of the more than 500 humans who have so far ventured into space, most have gone only as far as near-Earth orbit, and none have traveled beyond the orbit of the Moon. Achieving humans' further progress into the solar system had proved far more difficult than imagined in the heady days of the Apollo missions, but the potential rewards remain substantial. During its more than 50-year history, NASA's success in human space exploration has depended on the agency's ability to effectively address a wide range of biomedical, engineering, physical science, and related obstacles-an achievement made possible by NASA's strong and productive commitments to life and physical sciences research for human space exploration, and by its use of human space exploration infrastructures for scientific discovery. The Committee for the Decadal Survey of Biological and Physical Sciences acknowledges the many achievements of NASA, which are all the more remarkable given budgetary challenges and changing directions within the agency. In the past decade, however, a consequence of those challenges has been a life and physical sciences research program that was dramatically reduced in both scale and scope, with the result that the agency is poorly positioned to take full advantage of the scientific opportunities offered by the now fully equipped and staffed ISS laboratory, or to effectively pursue the scientific research needed to support the development of advanced human exploration capabilities. Although its review has left it deeply concerned about the current state of NASA's life and physical sciences research, the Committee for the Decadal Survey on Biological and Physical Sciences in Space is nevertheless convinced that a focused science and engineering program can achieve successes that will bring the space community, the U.S. public, and policymakers to an understanding that we are ready for the next significant phase of human space exploration. The goal of this report is to lay out steps and develop a forward-looking portfolio of research that will provide the basis for recapturing the excitement and value of human spaceflight-thereby enabling the U.S. space program to deliver on new exploration initiatives that serve the nation, excite the public, and place the United States again at the forefront of space exploration for the global good.


Animal Models of Pain

Animal Models of Pain

Author: Chao Ma

Publisher: Humana Press

Published: 2010-10-11

Total Pages: 0

ISBN-13: 9781607618799

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With the loss of work days, the price of health care and payments for compensation, litigation, and malpractice, and the overwhelming cost of human suffering, chronic pain syndromes affect humanity enormously on both an economic and personal level. In Animal Models of Pain, expert investigators in the field provide a consolidated review of the current state of pain research by capturing the diversity of animal models that are used to investigate pain mechanisms, which range from surgical incision to mechanical compression and from spinal cord injury to cutaneous/local inflammation and beyond. As a volume in the respected Neuromethods series, this book delivers its vital content through detailed descriptions of a wide variety of step-by-step laboratory methods. Authoritative and cutting-edge, Animal Models of Pain seeks to lead scientists closer to the ultimate goal of improving the quality of life and relieving the unbearable burden of chronic pain for millions of people throughout the world.


Voltage Gated Sodium Channels

Voltage Gated Sodium Channels

Author: Peter C. Ruben

Publisher: Springer Science & Business Media

Published: 2014-04-15

Total Pages: 328

ISBN-13: 3642415881

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A number of techniques to study ion channels have been developed since the electrical basis of excitability was first discovered. Ion channel biophysicists have at their disposal a rich and ever-growing array of instruments and reagents to explore the biophysical and structural basis of sodium channel behavior. Armed with these tools, researchers have made increasingly dramatic discoveries about sodium channels, culminating most recently in crystal structures of voltage-gated sodium channels from bacteria. These structures, along with those from other channels, give unprecedented insight into the structural basis of sodium channel function. This volume of the Handbook of Experimental Pharmacology will explore sodium channels from the perspectives of their biophysical behavior, their structure, the drugs and toxins with which they are known to interact, acquired and inherited diseases that affect sodium channels and the techniques with which their biophysical and structural properties are studied.