Low-Dose Radiation Effects on Animals and Ecosystems

Low-Dose Radiation Effects on Animals and Ecosystems
Author: Manabu Fukumoto
Publisher: Springer Nature
Total Pages: 259
Release: 2019-11-14
Genre: Science
ISBN: 9811382182

This open access book summarizes the latest scientific findings regarding the biological effects of the Fukushima Daiichi Nuclear Power Plant (FNPP) accident in 2011. Various cases of changes in animals and organisms have been reported since the FNPP accident. However, it is often unknown whether they are actually due to radiation, since the dose or dose-rate are not necessarily associated with the changes observed. This book brings together the works of radiation biologists and ecologists to provide reliable radioecology data and gives insight into future radioprotection. The book examines the environmental pollution and radiation exposure, and contains valuable data from abandoned livestock in the ex-evacuation zone and from wild animals including invertebrates and vertebrates, aqueous and terrestrial animals, and plants that are subjected to long-term exposure in the area still affected by radiation. It also analyzes dose evaluation, and offers new perspectives gained from the accident, as well as an overview for future studies to promote radioprotection of humans and the ecosystem. Since the biological impact of radiation is influenced by various factors, it is difficult to scientifically define the effects of low-dose/low-dose-rate radiation. However, the detailed research data presented can be combined with the latest scientific and technological advances, such as artificial intelligence, to provide new insights in the future. This book is a unique and valuable resource for researchers, professionals and anyone interested in the impact of exposure to radiation or contamination with radioactive materials.

Relative Radiation Sensitivities of Human Organ Systems

Relative Radiation Sensitivities of Human Organ Systems
Author: John Lett
Publisher:
Total Pages: 348
Release: 1990
Genre: Medical
ISBN: 9780120354146

Advances in Radiation Biology, Volume 14: Relative Radiation Sensitivities of Human Organ Systems, Part II focuses on radiation sensitivities of particular human organ systems. The sensitivities are then assessed based on the severity and the rapidity in which the effects of radiation manifest. The opening chapter surveys the clinical and experimental data on approaches toward the prevention of bladder complications in clinical radiotherapy. A discussion on HeLa cells, which are of special importance in human cervical cancer therapy, is then presented. In presenting this topic, this book emph ...

Effects of Low Dose and Low Dose Rate Radiation

Effects of Low Dose and Low Dose Rate Radiation
Author: Oddvar F. Nygaard
Publisher:
Total Pages: 336
Release: 1992
Genre: Science
ISBN: 9780120354160

Advances in Radiation Biology, Volume 6: Effects of Low Dose and Low Dose Rate Radiation examines the biological effects of low dose and low dose rate ionizing radiation on a broad scale, covering various articles from microdosimetry to analyses of human responses. Estimates of the effects on humans from low doses or from sustained exposures to low dose rates of ionizing radiations are of critical importance for the assessment of radiation risks under occupational and environmental conditions. This book consists of such knowledge that is essential for radiation protection and governmental regu...

Health Effects of Exposure to Low Levels of Ionizing Radiation

Health Effects of Exposure to Low Levels of Ionizing Radiation
Author: National Research Council
Publisher: National Academies
Total Pages: 436
Release: 1990-02-01
Genre: Science
ISBN: 0309039959

This book reevaluates the health risks of ionizing radiation in light of data that have become available since the 1980 report on this subject was published. The data include new, much more reliable dose estimates for the A-bomb survivors, the results of an additional 14 years of follow-up of the survivors for cancer mortality, recent results of follow-up studies of persons irradiated for medical purposes, and results of relevant experiments with laboratory animals and cultured cells. It analyzes the data in terms of risk estimates for specific organs in relation to dose and time after exposure, and compares radiation effects between Japanese and Western populations.

Low Dose Radiation

Low Dose Radiation
Author: Antone L. Brooks
Publisher:
Total Pages: 0
Release: 2018
Genre: Science
ISBN: 9780874223545

Chief Scientist Dr. Antone Brooks and his Low Dose Radiation Research Program team redefined the field, applying advances in instrumentation and molecular biology from the Human Genome Project and developing new technologies to examine cellular responses. Their findings were startling. At low doses, biological reactions are unique and often unrelated to those that occur at high doses. The influential linear-no-threshold model--which predicted that damage from acute exposures can be extrapolated linearly to low dose exposures--was flawed. Small doses of radiation can have an adaptive protective effect. "Hit theory," the idea that radiation only affected cells it directly traversed, yielded to "bystander theory," which hypothesizes that cells communicate with each other and a dose to one affects others surrounding it. Low Dose Radiation describes the program's development, the scientists who made it viable, and the fundamental results, highlighting lessons learned during its lifespan.

Health Risks from Exposure to Low Levels of Ionizing Radiation

Health Risks from Exposure to Low Levels of Ionizing Radiation
Author: Committee to Assess Health Risks from Exposure to Low Levels of Ionizing Radiation
Publisher: National Academies Press
Total Pages: 422
Release: 2006-03-23
Genre: Science
ISBN: 0309133343

This book is the seventh in a series of titles from the National Research Council that addresses the effects of exposure to low dose LET (Linear Energy Transfer) ionizing radiation and human health. Updating information previously presented in the 1990 publication, Health Effects of Exposure to Low Levels of Ionizing Radiation: BEIR V, this book draws upon new data in both epidemiologic and experimental research. Ionizing radiation arises from both natural and man-made sources and at very high doses can produce damaging effects in human tissue that can be evident within days after exposure. However, it is the low-dose exposures that are the focus of this book. So-called “late” effects, such as cancer, are produced many years after the initial exposure. This book is among the first of its kind to include detailed risk estimates for cancer incidence in addition to cancer mortality. BEIR VII offers a full review of the available biological, biophysical, and epidemiological literature since the last BEIR report on the subject and develops the most up-to-date and comprehensive risk estimates for cancer and other health effects from exposure to low-level ionizing radiation.

Holland-Frei Cancer Medicine

Holland-Frei Cancer Medicine
Author: Robert C. Bast, Jr.
Publisher: John Wiley & Sons
Total Pages: 2004
Release: 2017-03-10
Genre: Medical
ISBN: 111900084X

Holland-Frei Cancer Medicine, Ninth Edition, offers a balanced view of the most current knowledge of cancer science and clinical oncology practice. This all-new edition is the consummate reference source for medical oncologists, radiation oncologists, internists, surgical oncologists, and others who treat cancer patients. A translational perspective throughout, integrating cancer biology with cancer management providing an in depth understanding of the disease An emphasis on multidisciplinary, research-driven patient care to improve outcomes and optimal use of all appropriate therapies Cutting-edge coverage of personalized cancer care, including molecular diagnostics and therapeutics Concise, readable, clinically relevant text with algorithms, guidelines and insight into the use of both conventional and novel drugs Includes free access to the Wiley Digital Edition providing search across the book, the full reference list with web links, illustrations and photographs, and post-publication updates

The Future of Low Dose Radiation Research in the United States

The Future of Low Dose Radiation Research in the United States
Author: National Academies of Sciences, Engineering, and Medicine
Publisher: National Academies Press
Total Pages: 143
Release: 2020-01-13
Genre: Medical
ISBN: 030949771X

Exposures at low doses of radiation, generally taken to mean doses below 100 millisieverts, are of primary interest for setting standards for protecting individuals against the adverse effects of ionizing radiation. However, there are considerable uncertainties associated with current best estimates of risks and gaps in knowledge on critical scientific issues that relate to low dose radiation. The Nuclear and Radiation Studies Board of the National Academies hosted the symposium on The Future of Low Dose Radiation Research in the United States on May 8 and 9, 2019. The goal of the symposium was to provide an open forum for a national discussion on the need for a long-term strategy to guide a low dose radiation research program in the United States. The symposium featured presentations on low dose radiation programs around the world, panel discussions with representatives from governmental and nongovernmental organizations about the need for a low dose radiation research program, reviews of low dose radiation research in epidemiology and radiation biology including new directions, and lessons to be learned from setting up large research programs in non-radiation research fields. This publication summarizes the presentation and discussion of the symposium.

Radiation and the Immune System: Current Knowledge and Future Perspectives

Radiation and the Immune System: Current Knowledge and Future Perspectives
Author: Katalin Lumniczky
Publisher: Frontiers Media SA
Total Pages: 283
Release: 2018-05-03
Genre:
ISBN: 2889454746

For long, high dose ionizing radiation was considered as a net immune suppressing agent, as shown, among others, by the exquisite radiosensitivity of the lymphoid system to radiation-induced cell killing. However, recent advances in radiobiology and immunology have made this picture more complex. For example, the recognition that radiation-induced bystander effects, share common mediators with various immunological signalling processes, suggests that they are at least partly immune mediated. Another milestone was the finding, in the field of onco-immunology, that local tumor irradiation can modulate the immunogenicity of tumor cells and the anti-tumor immune responsiveness both locally, in the tumor microenvironment, and at systemic level. These observations paved the way for studies exploring optimal combinations of radiotherapy and immunotherapy in order to achieve a synergistic effect to eradicate tumors. However, not all interactions between radiation and the immune system are beneficial, as it was recognized that many of radiation-induced late side effects are also of immune and inflammatory nature. Currently perhaps the most studied field of research in radiation biology is focused around the biological effects of low doses, where many of the observed pathophysiological endpoints are due to mechanisms other than direct radiation-induced cell killing and are immune-related. Finally, it must not be forgotten that the interactions between the ionizing radiations and the immune system are bi-directional, and activation of the immune system also influences the outcome of radiation exposure. This Research Topic brings together 23 articles and aims to give an overview of the complex and very often contradictory nature of the interactions between ionizing radiation and the immune system. Due to its increasing penetrance in the population both through medical diagnostic or environmental sources or during cosmic travel low dose ionizing radiation exposure is becoming a major epidemiological concern world-wide. Several of the articles within the Research Topic specifically address potential long-term health consequences and the underlying mechanisms of low dose radiation exposure. A major intention of the Editors was also to draw the attention of the non-radiobiological scientific community on the fact that ionizing radiation is by far more than purely an immune suppressing agent.

Health Risks of Radon and Other Internally Deposited Alpha-Emitters

Health Risks of Radon and Other Internally Deposited Alpha-Emitters
Author: National Research Council
Publisher: National Academies Press
Total Pages: 623
Release: 1988-02-01
Genre: Science
ISBN: 0309037891

This book describes hazards from radon progeny and other alpha-emitters that humans may inhale or ingest from their environment. In their analysis, the authors summarize in one document clinical and epidemiological evidence, the results of animal studies, research on alpha-particle damage at the cellular level, metabolic pathways for internal alpha-emitters, dosimetry and microdosimetry of radionuclides deposited in specific tissues, and the chemical toxicity of some low-specific-activity alpha-emitters. Techniques for estimating the risks to humans posed by radon and other internally deposited alpha-emitters are offered, along with a discussion of formulas, models, methods, and the level of uncertainty inherent in the risk estimates.