Author: Michael Fry
Publisher: Springer Science & Business Media
ISBN: 3540333363
Category : Science
Languages : en
Pages : 296
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Book Description
Human neurological and neuromuscular disorders caused by nucleotide expansion are the focus of growing interest of practicing physicians and of interested biomedical researchers. This volume represents a comprehensive and up-to-date description of many of the better-studied disorders. The authors discuss molecular, clinical and pathological aspects of the diseases as well as our current understanding of their underlying mechanisms.
Author: The Royal Society
Publisher: National Academies Press
ISBN: 0309671132
Category : Medical
Languages : en
Pages : 239
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Book Description
Heritable human genome editing - making changes to the genetic material of eggs, sperm, or any cells that lead to their development, including the cells of early embryos, and establishing a pregnancy - raises not only scientific and medical considerations but also a host of ethical, moral, and societal issues. Human embryos whose genomes have been edited should not be used to create a pregnancy until it is established that precise genomic changes can be made reliably and without introducing undesired changes - criteria that have not yet been met, says Heritable Human Genome Editing. From an international commission of the U.S. National Academy of Medicine, U.S. National Academy of Sciences, and the U.K.'s Royal Society, the report considers potential benefits, harms, and uncertainties associated with genome editing technologies and defines a translational pathway from rigorous preclinical research to initial clinical uses, should a country decide to permit such uses. The report specifies stringent preclinical and clinical requirements for establishing safety and efficacy, and for undertaking long-term monitoring of outcomes. Extensive national and international dialogue is needed before any country decides whether to permit clinical use of this technology, according to the report, which identifies essential elements of national and international scientific governance and oversight.
Author: Yoshinori Kohwi
Publisher: Springer Science & Business Media
ISBN: 1592598048
Category : Science
Languages : en
Pages : 341
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Book Description
Trinucleotide repeats are relatively common in the human genome. These simple repeats have received much attention since epoch-making discoveries were made that particular trinucleotide repeats are expanded in the causal genes of human hereditary neurological disorders. For example, the CGG repeat is expanded in fragile X syndrome at the 5' untranslated region (UTR) of its causal gene. In myotonic dystrophy, it is the CTG repeat that is expanded at the 3' UTR of its causal gene. The CAG repeat was also found expanded in coding regions of the genes responsible for X-linked spinal and bulbar muscular atrophy, Huntington’s disease, spinocerebellar ataxia, and other disorders. On the other hand, expansion of the GAA repeat was identified in the intron of the gene responsible for the Friedreich’s ataxia. For these trinucleotide repeat diseases, the longer the trinucleotide expansion, the earlier the age of onset and the more severe the syndrome. Thus, these findings that showed the intriguing link between a particular trinucleotide expansion and its associated neurological disorders have led to a new field of intensive study. Active research addressing the underlying mechanisms for trinucleotide repeat diseases has employed various approaches ranging from DNA biochemistry to animal models for the diseases. In particular, animal models for the triplet repeat diseases have provided excellent resources not only for understanding the mechanisms but also for exploring therapeutic interventions.
Author: J. Gecz
Publisher: S. Karger AG (Switzerland)
ISBN: 9783805576215
Category : Amino acid sequence
Languages : en
Pages : 0
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Book Description
A valuable compilation of recent findings in the field DNA repeat expansion is the mutational mechanism in a number of high-profile genetic diseases such as fragile X syndrome, myotonic dystrophy and Huntington's disease. Since the discovery of this mechanism more than a decade ago many new findings have been reported, and the study of repeat expansion has virtually become a sub-specialty of human molecular genetics. This special issue of Cytogenetic and Genome Research reviews numerous aspects of nucleotide repeat expansion, mutations, and the proteins affected, including mechanisms of expansion, the molecular basis of repeat-associated disorders, animal models, and clinical insights. Several papers focus on rare and common fragile sites, discussing in detail what is currently known and evaluating their contribution to human disease. This highly authoritative series of articles written by leading investigators is recommended reading not only to students but also to scientists experienced in human genetics and clinicians dealing with patients suffering from repeat expansion disorders.
Author: A. E. Harding
Publisher: Lippincott Williams & Wilkins
ISBN:
Category : Medical
Languages : en
Pages : 248
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Book Description
In this volume, more than 50 leading international experts review the latest scientific and clinical observations on inherited ataxias. The book demonstrates how molecular genetic studies, as well as recent physiological, neurochemical, and clinical data, have generated new concepts on the nosology of these disorders. Close attention is given to the important practical applications of these new findings - in diagnosis, prognosis, and genetic counseling, in development of tests for prenatal diagnosis and carrier detection, and in the search for more effective therapies. The opening chapter identifies the clinical features that distinguish the various inherited ataxic syndromes and presents a classification based on etiology, mode of inheritance, age of onset, and associated clinical features. A major portion of the book focuses on current clinical and molecular genetic studies of different forms of inherited ataxia. Coverage includes a molecular analysis of the Friedreich's ataxia locus and extensive studies on autosomal recessive spastic ataxia of Charlevoix-Saguenay, ataxia telangiectasia, dominantly inherited spinocerebellar ataxias, Machado-Joseph disease, and inherited prion diseases. The contributors provide detailed information on the various clinical phenotypes of each form of inherited ataxia and thoroughly explain the use of linkage analysis and other molecular genetic techniques to localize and isolate the genes responsible for these diseases. The book also reviews the most significant research findings on neurotransmitters in the cerebellum, on the phosphoinositide second messenger system in cerebellar degenerative disorders, and on oligodendrocyte-associated andmyelin-associated inhibitors of neurite growth in the adult nervous system. The contributors assess recent progress in developing drugs for treatment of ataxias and other cerebellar movement disorders and identify new targets for pharmacological intervention. Experimental therapeutic observations on cerebellar grafting in heredodegenerative ataxia are also presented. This volume is an invaluable reference for clinicians treating patients with ataxias or counseling families at risk for inherited neurological diseases. It is also a rich source of ideas for molecular geneticists and for neuroscientists investigating disorders of the cerebellum.
Author:
Publisher: Elsevier
ISBN: 0444632352
Category : Medical
Languages : en
Pages : 436
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Book Description
Genetic methodologies are having a significant impact on the study of neurological and psychiatric disorders. Using genetic science, researchers have identified over 200 genes that cause or contribute to neurological disorders. Still an evolving field of study, defining the relationship between genes and neurological and psychiatric disorders is evolving rapidly and expected to grow in scope as more disorders are linked to specific genetic markers. Part I covers basic genetic concepts and recurring biological themes, and begins the discussion of movement disorders and neurodevelopmental disorders, leading the way for Part II to cover a combination of neurological, neuromuscular, cerebrovascular, and psychiatric disorders. This volume in the Handbook of Clinical Neurology will provide a comprehensive introduction and reference on neurogenetics for the clinical practitioner and the research neurologist. Presents a comprehensive coverage of neurogenetics Details the latest science and impact on our understanding of neurological psychiatric disorders Provides a focused reference for clinical practitioners and the neuroscience/neurogenetics research community
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309038405
Category : Science
Languages : en
Pages : 128
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Book Description
There is growing enthusiasm in the scientific community about the prospect of mapping and sequencing the human genome, a monumental project that will have far-reaching consequences for medicine, biology, technology, and other fields. But how will such an effort be organized and funded? How will we develop the new technologies that are needed? What new legal, social, and ethical questions will be raised? Mapping and Sequencing the Human Genome is a blueprint for this proposed project. The authors offer a highly readable explanation of the technical aspects of genetic mapping and sequencing, and they recommend specific interim and long-range research goals, organizational strategies, and funding levels. They also outline some of the legal and social questions that might arise and urge their early consideration by policymakers.
Author: Robert D. Wells
Publisher: Elsevier
ISBN: 0080463770
Category : Science
Languages : en
Pages : 783
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Book Description
Genetic Instabilities and Neurological Diseases covers DNA repeat instability and neurological disorders, covering molecular mechanisms of repeat expansion, pathogenic mechanisms, clinical phenotype, parental gender effects, genotype-phenotype correlation, and diagnostic applications of the molecular data. This updated edition provides updates of these repeat expansion mutations, including the addition of many new chapters, and old chapters rewritten as extensions of the previous edition. This book is an invaluable reference source for neuroscientists, geneticists, neurologists, molecular biologists, genetic counsellors and students. Contributions by most of the principal research teams in the area, edited by world-renowned leaders Lays the background for future investigations on related diseases
Author: Gabor G. Kovacs
Publisher: Cambridge University Press
ISBN: 1316337650
Category : Medical
Languages : en
Pages : 320
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Book Description
This practical guide to the diagnosis of neurodegenerative diseases discusses modern molecular techniques, morphological classification, fundamentals of clinical symptomology, diagnostic pitfalls and immunostaining protocols. It is based on the proteinopathy concept of neurodegenerative disease, which has influenced classification and provides new strategies for therapy. Numerous high-quality images, including histopathology photomicrographs and neuroradiology scans, accompany the description of morphologic alterations and interpretation of immunoreactivities. Diagnostic methods and criteria are placed within recent developments in neuropathology, including the now widespread application of immunohistochemistry. To aid daily practice, the guide includes diagnostic algorithms and offers personal insights from experienced experts in the field. Special focus is given to the way brain tissue should be handled during diagnosis. This is a must-have reference for medical specialists and specialist medical trainees in the fields of pathology, neuropathology and neurology working with neuropathologic features of neurodegenerative diseases.
Author:
Publisher:
ISBN:
Category : Huntington's disease
Languages : en
Pages : 28
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Book Description
