Download or read book Metabolic and Vascular Imaging Biomarkers for Brain Aging and Alzheimer s Disease written by Ai-Ling Lin and published by Frontiers Media SA. This book was released on 2020-08-10 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metabolic and Vascular Imaging Biomarkers for Brain Aging and Alzheimer s Disease written by Ai-Ling Lin and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Download or read book Imaging in Alzheimer s Disease and Other Dementias An Issue of Neuroimaging Clinics E Book written by Alison D. Murray and published by Elsevier Health Sciences. This book was released on 2012-02-28 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dementia is a massive and increasing global problem, with the current prevalence anticipated to double every 20 years as people live longer. Neuroimaging in dementia is recommended by most clinical guidelines and its role has traditionally been to exclude a mass lesion, rather than to support a specific diagnosis. All radiologists will be aware of a steady rise in the number of requests for brain imaging in old people, but what can imaging reliably tell us and what kind of imaging should we use? In affluent societies we now have a range of structural and molecular brain imaging techniques at our disposal, with specific ligands and sophisticated image analysis techniques now available for clinical use. However, we have difficulty justifying which patients to scan, using which modality and when. We know that Alzheimer’s disease is the most common neuropathology contributing to a diagnosis of Alzheimer’s disease but we also know from large post-mortem studies that most brain pathology in those who have died with a diagnosis of dementia is mixed. Thus understanding different diseases that can cause dementia, how these co-exist or interact and appreciating that not all dementia is Alzheimer’s disease is important. Equally important is awareness of individual differences in response to a neuropathological burden and what factors provide resilience against dementia that might be maximized to reduce or postpone its impact. This issue draws together contributions from experts in their fields to provide clarity to the topic in a comprehensive collection of articles.
Download or read book Neuroimaging biomarkers in Alzheimer s disease written by Samuel Barrack and published by iMedPub. This book was released on 2013-10-20 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: In view of the growing prevalence of AD worldwide, there is an urgent need for the development of better diagnostic tools and more effective therapeutic interventions. Indeed, much work in this field has been done during last decades. As such, a major goal of current clinical research in AD is to improve early detection of disease and presymptomatic detection of neuronal dysfunction, concurrently with the development of better tools to assess disease progression in this group of disorders. All these putative correlates are commonly referred to as AD-related biomarkers. The ideal biomarker should be easy to quantify and measure, reproducible, not subject to wide variation in the general population and unaffected by co- morbid factors. For evaluation of therapies, a biomarker needs to change linearly with disease progression and closely correlate with established clinico-pathological parameters of the disease. There is growing evidence that the use of biomarkers will increase our ability to better indentify the underlying biology of AD, especially in its early stages. These biomarkers will improve the detection of the patients suitable for research studies and drug trials, and they will contribute to a better management of the disease in the clinical practice. Indeed, much work in this field has been done during last decades. The vast number of important applications, combined with the untamed diversity of already identified biomarkers, show that there is a pressing need to structure the research made on AD biomarkers into a solid, comprehensive and easy to use tool to de deployed in clinical settings. To date there are few publications compiling results on this topic. That is why when I was asked to address this task I accepted inmediately. I am happy to present you a bundle of the best articles published about biomarkers for Alzheimer’s disease in recent times.
Download or read book PET in the Aging Brain An Issue of PET Clinics written by Andrew B. Newberg and published by Elsevier Health Sciences. This book was released on 2010-06-22 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: PET imaging has shown its value in diagnosing diseases affecting older people. Most significantly this has been with regard to the diagnosis of Alzheimer’s disease and other forms of dementia. Parkinson’s disease is another condition in which PET has proved valuable. This issue also included articles on the uses of PET for diagnosing cerebrovascular disease and for assessing neuroplasticity.
Download or read book Imaging and the Aging Brain Volume 1097 written by Mony J. de Leon and published by Wiley-Blackwell. This book was released on 2007-04-02 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in imaging are occurring at a brisk pace, and imaging techniques have great potential to act as pre-symptomatic predictors of disease as well as to chart the course of a disease. Neuroimaging has greatly advanced the understanding of brain function and its relationship to the anatomical substrate. This volume brings together internationally renowned imaging scientists, those studying the aging brain, industry experts, and clinicians to jointly examine the most current methods and their application to brain physiology, behavior, and age-related diseases. These reports explore new technologies, data from recent neuroimaging initiatives, and translational research applications. Topics covered include (1) in vivo imaging of molecules, cells, and networks throughout the lifespan, (2) cutting edge imaging technologies and studies of the physiology of aging, (3) translational application of neuroimaging, and (4) emerging technologies in the private sector. This volume is the proceedings of a meeting that celebrated the 25th anniversary of the American Federation for Aging Research and its longstanding history of philanthropy in the area of aging research. NOTE: Annals volumes are available for sale as individual books or as a journal. For information on institutional journal subscriptions, please visit www.blackwellpublishing.com/nyas. ACADEMY MEMBERS: Please contact the New York Academy of Sciences directly to place your order (www.nyas.org). Members of the New York Academy of Science receive full-text access to the Annals online and discounts on print volumes. Please visit www.nyas.org/membership for more information about becoming a member.
Download or read book Understanding Emerging Biomarkers and Lifestyle Factors in Aging and Alzheimer Disease written by Stephanie Ann Schultz and published by . This book was released on 2020 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Age-related cognitive decline and pathological brain changes are a widespread and growing public health issue. Several environmental factors, including engagement in physical activity and personality, have been shown to have potential protective effects in slowing cognitive decline and preserving healthy brain aging. However, the underlying mechanisms providing exercise- or personality-induced resilience to aging and disease remains largely unknown. Importantly, there has been an emergence of several novel biomarkers to study healthy brain aging and age-related neurodegenerative diseases including in vivo assessments of tau burden and brain metabolism via positron emission tomography (PET) imaging and neurofilament light chain (NfL), a marker of neurodegeneration, via Age-related cognitive decline and pathological brain changes are a widespread and growing public health issue. Several environmental factors, including engagement in physical activity and personality, have been shown to have potential protective effects in slowing cognitive decline and preserving healthy brain aging. However, the underlying mechanisms providing exercise- or personality-induced resilience to aging and disease remains largely unknown. Importantly, there has been an emergence of several novel biomarkers to study healthy brain aging and age-related neurodegenerative diseases including in vivo assessments of tau burden and brain metabolism via positron emission tomography (PET) imaging and neurofilament light chain (NfL), a marker of neurodegeneration, via blood-based biomarkers. During the first part of my thesis research, I examined these emerging biomarkers within healthy aging and AD cohorts at Washington University, in the Australian Imaging, Biomarkers, and Lifestyle (AIBL) cohort, and in the Dominantly Inherited Alzheimer Network (DIAN) observational study (Chapters 2 - 5). For the second part of my thesis research, I first used my new knowledge and experience with these biomarkers to characterize and determine the influence of physical activity on cerebral glucose metabolism (Chapter 6). Next, to better translate these findings to an exercise intervention in the future, I further completed a pilot study to determine feasibility and validity of performing a submaximal exercise protocol in a diverse US population (Chapter 7). For the third part of my thesis research, I discovered a cross-sectional association between personality traits and neurofibrillary tangle pathology. Taken together, the results from my thesis suggest utility in all three emerging biomarkers examined (tau-PET, blood-based NfL, and multi-tracer brain metabolism PET) for monitoring and understanding complex changes associated with brain aging and disease. Additionally, this thesis research adds to the current understanding of the potential role of increased physical activity in preservation of glycolytic metabolism in the aging brain and increased risk of AD-related tau pathophysiology in neurotic personality traits. Further research extending these findings to longitudinal studies are needed to help determine directionality of the observed effects.
Download or read book Heterogeneity in Brain Aging written by Jasmine Alexandra Nettiksimmons and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Alzheimer's disease (AD) is a neurodegenerative disease that appears in the elderly and is characterized by cognitive impairment, specifically in memory. Due to shifting demographics and improving medical technology resulting in longer lifespans, the prevalence of AD and other types of dementia is on the rise. While AD has been recognized for over a century, the scientific understanding of the biological pathways involved is still fragmentary. Definitive diagnosis of AD requires examination of the brain in an autopsy, which complicates studying the disease in living patients. A wide variety of cognitive tests exist, but intra- and inter-person variability in test-taking ability along with overlapping symptomology between different types of dementia makes precise characterization of disease more difficult. In recent years, there has been substantial development in the use of a variety of different types of biomarkers to understand AD. AD biomarkers include regional brain volume measures from MRI, measures of regional metabolism with FDG-PET, protein levels in cerebrospinal fluid (CSF), along with others. The Alzheimer's Disease Neuroimaging Initiative (ADNI) was a large, prospective study of AD biomarkers funded by a public/private partnership. Starting in 2003, ADNI enrolled approximately 800 subjects, 200 with AD, 400 with mild cognitive impairment (MCI), and 200 who were cognitively normal, and followed each group longitudinally over 2-3 years collecting repeated clinical and biological data. Although there are many biomarkers that are associated with AD, none of them is sufficiently sensitive or specific enough to be used as a diagnostic test; for most biomarkers, there is substantial overlap in distribution between the three diagnostic groups. This research focused on examining multivariate structure in AD biomarkers using unsupervised cluster analysis in an effort to understand whether subgroups exist which have clinical implications. The biomarker profiles found in both the cognitively normal controls and MCI subjects were highly informative regarding the degree and type of biological heterogeneity accompanying the relative clinical homogeneity in each diagnostic group. A small subgroup of the ADNI controls had a biomarker profile clearly characteristic of the early stages of AD at baseline, even though they were still cognitively normal. Over time, this group experienced more rapid cognitive decline than the rest of the controls. Another large subgroup of the normal controls demonstrated marked atrophy in multiple brain regions, but lacked the CSF profile characteristic of AD. Vascular damage was examined as a possible explanation, and in fact, this group was consistently associated with a variety of vascular risk factors and also exhibited significantly more cognitive decline than the typical/healthy normal cluster. There was a great deal of biological heterogeneity in the MCI group, with two of the four clusters exhibiting biomarker patterns that are not well described by the prevailing theory of AD. Finally, structurally missing data in ADNI provoked an exploration into the possibilities of using imputation techniques for clustering. Although imputation is very commonly used in regression, there is virtually no literature on its use with other statistical techniques. The simulation performed here indicated that both single and multiple imputation methods have the capacity to perform very well in a clustering context, even when the clusters are not compact and well-separated.
Download or read book Neuroanatomy and Pathology of Sporadic Alzheimer s Disease written by Heiko Braak and published by Springer. This book was released on 2014-12-11 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: As indicated by its title, this monograph deals chiefly with morphologically recognizable deviations from the normal anatomical condition of the human CNS. The AD-associated pathology is illustrated from its beginnings (sometimes even in childhood) to its final form, which is reached late in life. The AD process commences much earlier than the clinically recognizable phase of the disorder, and its timeline includes an extended preclinical phase. The further the pendulum swings away from the symptomatic final stages towards the early pathology, the more obvious the lesions become, although from a standpoint of severity they are more unremarkable and thus frequently overlooked during routine neuropathological assessment. For this reason, the authors deal with the hallmark lesions in the early phases of the AD process in considerable detail
Download or read book Biomarkers in Alzheimer s Disease written by Tapan Khan and published by Academic Press. This book was released on 2016-08-02 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biomarkers in Alzheimer’s Disease provides a comprehensive overview of all modalities of Alzheimer’s disease biomarkers, including neuroimaging, cerebrospinal fluid, genomic, and peripheral systems. Each chapter integrates molecular/cellular abnormality due to Alzheimer’s disease and technological advancement of biomarkers techniques. The book is ideal for clinical neuroscience and molecular/cellular neuroscience researchers, psychiatrists, and allied healthcare practitioners involved in the diagnosis and management of patients with cognitive impairment and Alzheimer’s disease, and for differential diagnosis of Alzheimer’s disease with other non-Alzheimer’s dementia. Presents a comprehensive overview detailing all modalities of Alzheimer’s disease biomarkers Written for neuroscience researchers and clinicians studying or treating patients with Alzheimer’s Disease Integrates, in each chapter, the molecular/cellular abnormality due to Alzheimer’s disease and the technological advancement of biomarkers techniques
Download or read book Neuroimaging in Dementia written by Frederik Barkhof and published by Springer Science & Business Media. This book was released on 2011-02-11 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: This up-to-date, superbly illustrated book is a practical guide to the effective use of neuroimaging in the patient with cognitive decline. It sets out the key clinical and imaging features of the various causes of dementia and directs the reader from clinical presentation to neuroimaging and on to an accurate diagnosis whenever possible. After an introductory chapter on the clinical background, the available "toolbox" of structural and functional neuroimaging techniques is reviewed in detail, including CT, MRI and advanced MR techniques, SPECT and PET, and image analysis methods. The imaging findings in normal ageing are then discussed, followed by a series of chapters that carefully present and analyze the key findings in patients with dementias. Throughout, a practical approach is adopted, geared specifically to the needs of clinicians (neurologists, radiologists, psychiatrists, geriatricians) working in the field of dementia, for whom this book will prove an invaluable resource.
Download or read book Vascular Cognitive Impairment in Clinical Practice written by Lars-Olof Wahlund and published by . This book was released on 2009 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gives a broad clinical perspective on vascular cognitive impairment, and creates a foundation for the implementation of good dementia care.
Download or read book Heterogeneity of Alzheimer s Disease written by Francois Boller and published by Springer Science & Business Media. This book was released on 2013-03-08 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: The term "Alzheimer's disease" is currently used to refer to senile and also presenile dementia, but the heterogeneity of this disorder is demonstrated in many of its aspects. This is of great theoretical interest, and with the appearance of new therapeutic interventions, it may well also start to have very significant practical importance. To shed some light on the debate, the Fondation Ipsen organized an international symposium which took place on April 6, 1992. This volume contains the proceedings of this meeting, which was attended by researchers in epidemiology, clinical neurology and geriatrics, neuropsychology, neuropathology, molecular biology, and genetics.
Download or read book Cerebrospinal Fluid Biomarkers written by Charlotte E. Teunissen and published by Humana. This book was released on 2022-05-19 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume covers the latest methods used in clinical neurochemistry laboratories for both clinical practice and research. Chapters in this book discuss topics such as techniques for cerebrospinal fluid (CSF) collection, pre-analytical processing, and basic CSF analysis; an examination of biomarkers including ELISA and automated immunochemical assays for amyloid and tau markers for Alzheimer’s disease; the analysis of neurofilaments by digital ELISA; and an example of successful novel immunoassay development. In the Neuromethods series style, chapters include the kind of detail and key advice from the specialists needed to get successful results in your laboratory. Cutting-edge and thorough, Cerebrospinal Fluid Biomarkers is a valuable resource for clinicians and researchers to use in CSF labs and CSF courses.
Download or read book Diseases of the Brain Head and Neck Spine 2020 2023 written by Juerg Hodler and published by Springer Nature. This book was released on 2020-02-14 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book offers an essential overview of brain, head and neck, and spine imaging. Over the last few years, there have been considerable advances in this area, driven by both clinical and technological developments. Written by leading international experts and teachers, the chapters are disease-oriented and cover all relevant imaging modalities, with a focus on magnetic resonance imaging and computed tomography. The book also includes a synopsis of pediatric imaging. IDKD books are rewritten (not merely updated) every four years, which means they offer a comprehensive review of the state-of-the-art in imaging. The book is clearly structured and features learning objectives, abstracts, subheadings, tables and take-home points, supported by design elements to help readers navigate the text. It will particularly appeal to general radiologists, radiology residents, and interventional radiologists who want to update their diagnostic expertise, as well as clinicians from other specialties who are interested in imaging for their patient care.
Download or read book Cerebral Small Vessel Disease written by Leonardo Pantoni and published by Cambridge University Press. This book was released on 2014-05 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: Up-to-date discussion of the etiology, diagnosis, treatment, and prevention of this common cause of stroke and cognitive impairment.
Download or read book Imaging Acute Neurologic Disease written by Massimo Filippi and published by Cambridge University Press. This book was released on 2014-09-11 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive survey of best practice in using diagnostic imaging in acute neurologic conditions. The symptom-based approach guides the choice of the available imaging tools for efficient, accurate, and cost-effective diagnosis. Effective examination algorithms integrate neurological and imaging concepts with the practical demands and constraints of emergency care.
