The Molecular Pathology Of Cognitive Decline Focus On Metals
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The Molecular Pathology of Cognitive Decline: Focus on Metals
In the past two decades there have been significant advances made in understanding the cellular and molecular alterations that occur with brain ageing, as well as with our understanding of age-related brain diseases. Ageing is associated with a mid-life decline in many cognitive domains (eg. Attention, working memory, episodic memory) that progresses with advancing age and which may be potentiated by a variety of diseases. However, despite the breadth of attempts to explain it, the underlying basis for age-related memory impairment remains poorly understood. Both normal and “pathological” ageing (as in age-related neurodegenerative disorders such as Alzheimer’s disease) may be associated with overlapping and increased levels of “abnormal” pathology, and this may be a potential mediator of cognitive decline in both populations. An emerging hypothesis in this field is that metal ion dys/homeostasis may represent a primary unifying mechanism to explain age- and disease-associated memory impairment – either indirectly via an effect on disease pathogenesis, or by a direct effect on signaling pathways relevant to learning and memory. There remains a concerted worldwide effort to deliver an effective therapeutic treatment for cognitive decline associated with ageing and/or disease, which is currently an unmet need. There have been numerous clinical trials conducted specifically testing drugs to prevent cognitive decline and progression to dementia, but to date the results have been less than impressive, highlighting the urgent need for a greater understanding of the neurobiological basis of memory impairment in ageing and disease which can then drive the search for effective therapeutics.
Phytopharmaceuticals for Brain Health
Research studies demonstrate diet and proper nutrition in conjunction with cognitive, mental, social, and physical activities can significantly help in improving brain health with advancing age, and potentially reduce the risk of cognitive decline. These studies of phytopharmaceuticals and medicinal plants, demonstrate the efficacy of Huperzine A, berry anthocyanins, trans-resveratrol, Ginkgo biloba, Bacopa monniera, Centella asiatica, tocotrienols, and palm oil in boosting brain health and physical well-being. In addition, consumption of marine fishes and general seafood is recommended for long-term nutritional intervention to preserve mental health, hinder neurodegenerative processes, and sustain cognitive capacities in humans. Omega-3 and omega-6 polyunsaturated fatty acids, n-3/n-6 PUFAs, flavonoids, and antioxidants prevent the initiation and progression of many neurological disorders. This book is a comprehensive review of phytopharmaceuticals impacting brain health with emphasis on diverse applications in food and nutrition sciences, biomedicine, neurology and other scientific and medical fields. It details available methods and contains numerous references making this the perfect guide for scientists who want to explore the fascinating world of phytopharmaceuticals with relation to brain health. Phytopharmaceuticals for Brain Health appeals to a diverse range of readers in industry, medical doctors, research and academia, including biologists, biochemists, food scientists, nutritionists and health professionals. Overall, this book brings a classic scenario of neurological problems to possible amelioration using novel nutraceuticals and functional foods.
Molecular Pathology of Alzheimer's Disease
Alzheimer’s Disease is characterized pathologically by two principal hallmark lesions: the senile plaque and the neurofibrillary tangle. Since the identification of each over 100 years ago, the major protein components have been elucidated. This has led in turn to the elaboration of metabolic cascades involving amyloid-β production in the case of the senile plaque, and phosphorylated-tau protein in the case of the neurofibrillary tangle. The pathogenesis and histogenesis of each have been the source of extensive investigation and some controversy in recent years, as both cascades have been implicated in the pathogenesis of Alzheimer’s Disease, relied upon in the diagnostic criteria for Alzheimer’s Disease at autopsy, and targeted for therapeutic intervention. With the accumulation of data and expansion of knowledge of the molecular biology of Alzheimer’s Disease, it appears that the enthusiasm for successful intervention has been premature. In this book, we detail the discovery and characterization of the major pathological lesions, their associated molecular biology, their relationship to clinical disease, and potential fundamental errors in understanding that may be leading scientific investigators in unintended directions.