Download or read book Body Mass Index Age and Neurocognitive Functioning written by Kelly Marie Stanek and published by . This book was released on 2011 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cognitive dysfunction and structural brain abnormalities have been observed in obese versus lean individuals, but with variability across age and weight groups. This study was designed to clarify the cognitive profile of obesity by examining performance across multiple cognitive domains in adults with wide-ranging age and weight status. A total of 732 participants (60% women; ages 18-87; BMI range 19-75) underwent assessment of cognitive functioning and relevant medical/demographic covariates. Neuropsychological tests were grouped by cognitive domain (via confirmatory factor analysis), and standardized scores were averaged into composite variables. Hierarchical linear regression analyses examined main effects of BMI, as well as an interaction between BMI and aging, in predicting these cognitive domains. Significant main effects for BMI were observed for motor and attention/processing speed, whereas a significant interaction between BMI and age was observed for predicting executive functioning. BMI was not independently associated with memory or language functioning and no interaction effects were observed for these variables. Results indicate that BMI is independently associated with decreased attention, processing speed, and fine motor speed, but not memory or language, across the adult lifespan. Although BMI was not independently related to executive dysfunction, a significant age x BMI interaction suggests that obesity-related executive deficits may increase with age. Overall, these findings support a hypothesized primary frontosubcortical pathology that manifests itself gradually from slowing to more evident executive deficits with age in obese individuals. Prospective studies should explore these possibilities.
Download or read book Structural and Cognitive Correlates of Body Mass Index in Healthy Older Adults written by Jacob D. Bolzenius and published by . This book was released on 2014 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Obesity, commonly measured with body mass index (BMI), is associated with numerous deleterious health conditions and may be a modifier of age-related alterations in brain integrity. Research suggests that white matter integrity observed using diffusion tensor imaging (DTI) is altered with high BMI, but the integrity of specific tracts remains poorly understood. Additionally, no studies have examined fractional anisotropy (FA) of tract integrity in conjunction with neuropsychological evaluation with elevated BMI among older adults. It was hypothesized that elevated BMI would be independently associated with lower white matter integrity and cognitive performance. It was also hypothesized that age and BMI would interact in relation to measures of white matter integrity and cognitive performance. Sixty two healthy older adults aged 51 to 81 were evaluated using DTI and neuropsychological evaluation. Associations were examined between BMI, FA in tracts connecting frontal and temporal lobes, and cognitive ability in domains of executive function, processing speed, and memory. Hierarchical linear regressions were utilized to determine the impact of BMI on FA and cognitive function after accounting for demographics, followed by a test for a BMI by age interaction on FA and cognitive indices. Secondary analyses assessed the sensitivity of DTI diffusivity metrics to elevated BMI, and related tract FA to cognitive performance. After controlling for initial demographic relationships, elevated BMI was associated with lower FA in the uncinate fasciculus, though there was no evidence of an age by BMI interaction relating to FA in this tract. No relationships between BMI and cognition were observed. Secondary analyses did not suggest that DTI diffusivity metrics provide unique information about tract integrity related to high BMI. Overall, results suggest elevated BMI is associated with altered integrity of the uncinate fasciculus. This white matter tract connects frontal and temporal lobes and is involved in memory function. There was no evidence of an age by BMI interaction on FA of the uncinate fasciculus, and BMI did not relate to cognitive performance. Future studies should examine measures of cardiovascular health and systemic inflammation to identify factors influencing relationships between BMI and white matter integrity.
Download or read book Nutritional influences on human neurocognitive functioning written by Michael Smith and published by Frontiers E-books. This book was released on 2014-11-04 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: ‘You are what you eat’. It’s a saying that we’ve all heard time and time again. The notion that good nutrition is essential for adequate growth and sound physical wellbeing is very well established. Further, in recent years, there has been an overwhelming increase in research dedicated to better understanding how nutritional factors influence cognition and behaviour. For example, several studies have suggested that higher foetal exposure to omega-3 fatty acids and B vitamins such as folate promotes neurodevelopment. B vitamins may also play a role in neurocognitive functioning in later life, with some suggestion that lower vitamin B levels are associated with increased risk of dementia (although randomised controlled trials investigating B vitamin supplementation as a cognitive enhancer in the elderly have provided inconclusive evidence as to the benefits of such therapy for dementia). In fact, the nutritional underpinnings of Alzheimer’s disease and other disorders of cognitive ageing is becoming a much researched topic. In addition, consumption of several other foods has been found to convey more acute cognitively enhancing effects. For example, ingestion of carbohydrates (e.g. glucose), caffeine, resveratrol and several ‘nutraceutical’ herbal extracts has been associated with short-term improvements in cognitive performance. Beyond specific micronutrients and macronutrients, the current literature seems to support anecdotal evidence that consumption of a balanced breakfast is crucial to various measures of school performance, including attention in the classroom. What is clear from this emerging literature is that the relationship between nutritional status and neurocognitive functioning at various stages of the lifespan is complex. An aim of this Research Topic is to bring together some recent empirical findings, reviews and commentaries of the literature to date and opinion pieces relating to future directions for this burgeoning field.
Download or read book Cognitive Aging written by Institute of Medicine and published by National Academies Press. This book was released on 2015-07-21 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: For most Americans, staying "mentally sharp" as they age is a very high priority. Declines in memory and decision-making abilities may trigger fears of Alzheimer's disease or other neurodegenerative diseases. However, cognitive aging is a natural process that can have both positive and negative effects on cognitive function in older adults - effects that vary widely among individuals. At this point in time, when the older population is rapidly growing in the United States and across the globe, it is important to examine what is known about cognitive aging and to identify and promote actions that individuals, organizations, communities, and society can take to help older adults maintain and improve their cognitive health. Cognitive Aging assesses the public health dimensions of cognitive aging with an emphasis on definitions and terminology, epidemiology and surveillance, prevention and intervention, education of health professionals, and public awareness and education. This report makes specific recommendations for individuals to reduce the risks of cognitive decline with aging. Aging is inevitable, but there are actions that can be taken by individuals, families, communities, and society that may help to prevent or ameliorate the impact of aging on the brain, understand more about its impact, and help older adults live more fully and independent lives. Cognitive aging is not just an individual or a family or a health care system challenge. It is an issue that affects the fabric of society and requires actions by many and varied stakeholders. Cognitive Aging offers clear steps that individuals, families, communities, health care providers and systems, financial organizations, community groups, public health agencies, and others can take to promote cognitive health and to help older adults live fuller and more independent lives. Ultimately, this report calls for a societal commitment to cognitive aging as a public health issue that requires prompt action across many sectors.
Download or read book Synaptic Plasticity written by Michael R. Kreutz and published by Springer Science & Business Media. This book was released on 2012-02-18 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the current concepts of molecular mechanisms in synaptic plasticity and provides a comprehensive overview of cutting-edge research technology used to investigate the molecular dynamics of the synapses. It explores current concepts on activity-dependent remodeling of the synaptic cytoskeleton and presents the latest ideas on the different forms of plasticity in synapses and dendrites. Synaptic Plasticity in Health and Disease not only supplies readers with extensive knowledge on the latest developments in research, but also with important information on clinical and applied aspects. Changes in spine synapses in different brain disease states, so-called synaptopathies, are explained and described by experts in the field. By outlining basic research findings as well as physiological and pathophysiological impacts on synaptic plasticity, the book represents an essential state-of-the-art work for scientists in the fields of biochemistry, molecular biology and the neurosciences, as well as for doctors in neurology and psychiatry alike.
Download or read book The Perioperative Neurocognitive Disorders written by Roderic G. Eckenhoff and published by Cambridge University Press. This book was released on 2019-03-28 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical guide to perioperative cognitive disorders, the most common complications of anesthesia and surgery in older people.
Download or read book Preventing Alzheimer s Disease written by National Institutes National Institutes oF Health and published by Createspace Independent Publishing Platform. This book was released on 2017-02-16 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: This booklet summarizes what scientists have learned so far and where research is headed. There is no definitive evidence yet about what can prevent Alzheimer's or age-related cognitive decline. What we do know is that a healthy lifestyle-one that includes a healthy diet, physical activity, appropriate weight, and no smoking-can maintain and improve overall health and well-being. Making healthy choices can also lower the risk of certain chronic diseases, like heart disease and diabetes, and scientists are very interested in the possibility that a healthy lifestyle might have a beneficial effect on Alzheimer's as well. In the meantime, as research continues to pinpoint what works to prevent Alzheimer's, people of all ages can benefit from taking positive steps to get and stay healthy.
Download or read book Modulation of Sleep by Obesity Diabetes Age and Diet written by Ronald Ross Watson and published by Academic Press. This book was released on 2014-09-14 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sleep disorder is a rampant problem in the US, with over 40 million Americans currently diagnosed according to the NIH. There is a clear association between sleep disorder and a wide range of other human disorders –performance deficiencies, psychiatric illnesses, heart disease, obesity and more – but in spite of this there is not yet a convenient overview on the market detailing the impact of obesity, age, diabetes and diet on sleep duration and attendant health outcomes. This volume focuses on the interaction between sleep and these factors, with special attention being paid to the potential for neurological modulation of sleep via diet. The volume aid readers in understanding the role each of these factors plays in sleep architecture and its regulation by circadian biology and neurology. Aids in understanding the impact of age, diet, obesity and disease on sleep Offers focus on neurological changes that affect metabolism Explores diabetes induced sleep problems Aid to understanding the multifactorial causes of age-related sleep dysfunction Addresses selected studies of nutraceuticals affecting sleep for potential application clinically Discusses major impact on sleep disorders by caffeine and alcohol
Download or read book Clinical Topics in Old Age Psychiatry written by Julian C. Hughes and published by Cambridge University Press. This book was released on 2020-09-17 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview of important current subjects in old age psychiatry, demonstrating the depth and breadth of the speciality.
Download or read book Cognitive and Brain Aging Interventions to Promote Well Being in Old Age Roadmap for Interventions Preventing Cognitive Aging written by Pamela M. Greenwood and published by Frontiers Media SA. This book was released on 2020-03-03 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Epidemiology of Obesity in Children and Adolescents written by Luis A. Moreno and published by Springer Science & Business Media. This book was released on 2011-01-12 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite adults’ best preventive efforts, childhood obesity is on the rise in most areas of the world, and with it the prevalence of Type 2 diabetes, hypertension, cardiovascular disease, and other formerly adult-onset conditions. Epidemiology of Obesity in Children and Adolescents takes the global ecological approach that is needed to understand the scope of the problem and its multiple causes and mechanisms, and to aid in developing more effective prevention and intervention programs. In the book’s first half, experts present a descriptive summary of youth obesity trends in ten world regions, broken down by age group, gender, socioeconomic status, and risk factors. Complementing these findings, part two reviews the evidence base regarding the variables, separately and in combination, having the most significant impact on young people’s development of obesity, including: • Genetic and nutrigenomic factors. • Environmental and psychosocial factors, such as family shopping and eating habits and access to healthful foods. • Neuroendocrine regulation. • Prenatal and neonatal factors (e.g., gestational diabetes of the mother). • Dietary factors, from nutrient content to young people’s food preferences. • Physical activity versus sedentary behavior. Epidemiology of Obesity in Children and Adolescents is necessary reading for the range of professionals involved in curtailing this epidemic, including public health specialists, epidemiologists, pediatricians, nurses, nutritionists, psychologists, health educators, and policymakers.
Download or read book The Hippocampus in Clinical Neuroscience written by K. Szabo and published by Karger Medical and Scientific Publishers. This book was released on 2014-04-23 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: The hippocampus is one of the most intriguing structures of the human brain. Damage to this part causes symptoms ranging from transient disorders accompanied by tiny lesions to severely debilitating cognitive disorders with marked tissue loss. This publication provides a predominantly clinical approach to the complex workings of the hippocampus from different perspectives, ranging from basic principles to specific diseases. The first part of the book summarizes current knowledge regarding the structure and physiology of the hippocampus and establishes the ties to basic neuroscience. The second part deals with the function and assessment of the human hippocampus, including memory function, neuropsychological measures, and conventional and functional imaging studies. The chapters of the third part are devoted to the hippocampus in neurological disorders, e.g. the interaction between stress and memory function, and the pathological conditions of common as well as selected rare neurological diseases affecting the hippocampus. The book is highly recommended to clinical neurologists who wish to gain a broad understanding of this complex and fascinating organ in terms of basic principles, modern imaging findings, and specific diseases.
Download or read book Decoding brain function through genetics written by Noriyoshi Usui and published by Frontiers Media SA. This book was released on 2022-05-03 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Inflammation Associated Depression Evidence Mechanisms and Implications written by Robert Dantzer and published by Springer. This book was released on 2016-12-28 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inflammation has invaded the field of psychiatry. The finding that cytokines are elevated in various affective and psychotic disorders brings to the forefront the necessity of identifying the precise research domain criteria (RDoCs) that inflammation is responsible for. This task is certainly the most advanced in major depressive disorders. The reason is that a dearth of clinical and preclinical studies has demonstrated that inflammation can cause symptoms of depression and conversely, cytokine antagonists can attenuate symptoms of depression in medical and psychiatric patients with chronic low grade inflammation. Important knowledge has been gained on the symptom dimensions that inflammation is driving and the mechanisms of action of cytokines in the brain, providing new targets for drug research and development. The aim of the book “Inflammation-Associated Depression” is to present this field of research and its implications in a didactic and comprehensive manner to basic and clinical scientists, psychiatrists, physicians, and students at the graduate level.
Download or read book A Manual of the History of Dogmas written by Bernard John Otten and published by . This book was released on 1917 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Clinical Neurology of Aging written by Martin L. Albert and published by Oxford University Press, USA. This book was released on 1994 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thorough revision of a well-established text presents essential information on the neurobiology of aging. There are new chapters on competency and ethics, problems of daily living, psychopharmacology, and stability and falls. Written in a accessible style, this book will be invaluable to clinicians and neurologists who treat elderly patients.
Download or read book Diet and Cognitive Decline written by Francesco Panza and published by Nova Publishers. This book was released on 2004 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: The progressive ageing of the general population and the consequent increase of the number of old people has made the typical medical problems of aged people more frequently observed, and particularly the problems related to the ageing brain. This new book is an updated overview of relevant aspects of cognitive decline associated with ageing. Within the wide landscape of brain ageing the authors reconsider the role of the main predisposing factors and risk factors on the development of various form of mental decline, from mild cognitive impairment to dementia. The strength of this book is the large, updated overview of the most recent data of scientific literature regarding the role of genetic, metabolic and environmental factors on the predisposition and onset of cognitive decline. Particular attention is paid to the dietary micro- and macronutrients and to their possible role in the pathogenesis of the various form of dementigen disorders.
