Pharmacotherapeutic Potential of Natural Products in Neurological Disorders

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Publisher : Springer
ISBN 13 : 9811302898
Total Pages : 191 pages
Book Rating : 4.8/5 (113 download)

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Book Synopsis Pharmacotherapeutic Potential of Natural Products in Neurological Disorders by : Amritpal Singh Saroya

Download or read book Pharmacotherapeutic Potential of Natural Products in Neurological Disorders written by Amritpal Singh Saroya and published by Springer. This book was released on 2018-06-19 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural Products have always played a pivotal role as sources for drug lead compounds. This book is aimed at providing inside purview of the scope of natural products (including herbal and marine) in the possible treatment of neurological disorders. The book explains pre-clinical neuropharmacological investigations done on herbs including Bacopa monnieri, Hypericum perforatum, Passiflora incarnata, Scutellaria baicalensis and Piper methysticum. It provides a comprehensive overview of the role of phytoconstituents like huperzine, curcumin, Salvinorin A, bioflavonoids, sulforaphane, tanshinone IIA, tetramethylpyrazine, tetrahydrocannabinol, and cannabidiol in the treatment of neurological disorders. The book provides a modern concept of herbal medications, neuropharmacology of marine bioactive products and Ayurvedic formulations, herbal drugs with abuse potential and neurotoxic mycotoxins.

The Benefits of Natural Products for Neurodegenerative Diseases

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Publisher : Springer
ISBN 13 : 3319283839
Total Pages : 496 pages
Book Rating : 4.3/5 (192 download)

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Book Synopsis The Benefits of Natural Products for Neurodegenerative Diseases by : M. Mohamed Essa

Download or read book The Benefits of Natural Products for Neurodegenerative Diseases written by M. Mohamed Essa and published by Springer. This book was released on 2016-09-20 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focuses on the effects of natural products and their active components on brain function and neurodegenerative disease prevention. Phytochemicals such as alkaloids, terpenes, flavanoids, isoflavones, saponins etc are known to possess protective activity against many neurological diseases. The molecular mechanisms behind the curative effects rely mainly on the action of phytonutrients on distinct signaling pathways associated with protein folding and neuro-inflammation. The diverse array of bioactive nutrients present in these natural products plays a pivotal role in prevention and cure of various neurodegenerative diseases, disorders, or insults, such as Alzheimer's Disease, Parkinson's Disease, Huntington's Disease, traumatic brain injury, and other neuronal dysfunctions. However, the use of these antioxidants in the management of neurodegenerative conditions has so far been not well understood. This is a comprehensive collection addressing the effects on the brain of natural products and edible items such as reservatrol, curcumin, gingerol, fruits, vegetables, nuts, and marine products.

Studies in Natural Products Chemistry

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Publisher : Elsevier
ISBN 13 : 0323898157
Total Pages : 472 pages
Book Rating : 4.3/5 (238 download)

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Book Synopsis Studies in Natural Products Chemistry by : Atta-ur Rahman

Download or read book Studies in Natural Products Chemistry written by Atta-ur Rahman and published by Elsevier. This book was released on 2021-04-16 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies in Natural Products Chemistry, Volume 69 covers the synthesis, testing and recording of the medicinal properties of natural products, providing cutting-edge accounts of fascinating developments in the isolation, structure elucidation, synthesis, biosynthesis and pharmacology of a diverse array of bioactive natural products. Natural products in the plant and animal kingdom offer a huge diversity of chemical structures that are the result of biosynthetic processes. With rapid developments in spectroscopic techniques and accompanying advances in high-throughput screening techniques, it has become possible to rapidly isolate and determine the structures and biological activity of natural products, thus opening up opportunities in drug development. Focuses on the chemistry of bioactive natural products Contains contributions by leading authorities in the field Presents sources of new pharmacophores

Preparation of Phytopharmaceuticals for the Management of Disorders

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Publisher : Academic Press
ISBN 13 : 0128202858
Total Pages : 574 pages
Book Rating : 4.1/5 (282 download)

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Book Synopsis Preparation of Phytopharmaceuticals for the Management of Disorders by : Chukwuebuka Egbuna

Download or read book Preparation of Phytopharmaceuticals for the Management of Disorders written by Chukwuebuka Egbuna and published by Academic Press. This book was released on 2020-11-03 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preparation of Phytopharmaceuticals for the Management of Disorders: The Development of Nutraceuticals and Traditional Medicine presents comprehensive coverage and recent advances surrounding phytopharmaceuticals, nutraceuticals and traditional and alternative systems of medicines. Sections cover the concepts of phytopharmaceuticals, their history, and current highlights in phytomedicine. Also included are classifications of crude drugs, herbal remedies and toxicity, traditional and alternative systems of medicine, nanotechnology applications, and herbal cosmeticology. Final sections cover applications of microbiology and biotechnology in drug discovery. This book provides key information for everyone interested in drug discovery, including medicinal chemists, nutritionists, biochemists, toxicologists, drug developers and health care professionals. Students, professors and researchers working in the area of pharmaceutical sciences and beyond will also find the book useful. Includes the history and current highlights in phytomedicine, along with classifications of crude drugs, herbal drug technologies and herbal cosmeticology Provides detailed information on herbal remedies and toxicity, traditional and alternative systems of medicine, and applications of microbiology and biotechnology in drug discovery Discusses the nutritional and health benefits of nutraceuticals and how they help in the management and treatment of metabolic diseases

Ayurveda for Depression

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Publisher : North Atlantic Books
ISBN 13 : 1623175372
Total Pages : 431 pages
Book Rating : 4.6/5 (231 download)

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Book Synopsis Ayurveda for Depression by : Dr. L. Eduardo Cardona-Sanclemente

Download or read book Ayurveda for Depression written by Dr. L. Eduardo Cardona-Sanclemente and published by North Atlantic Books. This book was released on 2020-10-27 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: An integrative approach to support your health and well-being While Western medicine often relies on a one-size-size-fits-all approach to treating depression, Ayurveda offers an individualized, holistic model that draws upon five thousand years of scientific knowledge and practice to address depression systemically--restoring balance and nourishing mind, body, and spirit. The Ayurvedic anti-depression protocols outlined in this book can work alone or in concert with conventional therapies to help you develop a tailored plan that meets your unique needs. You'll learn how to identify your inborn and mental constitutions (prakruti and manas prakruti) to better understand the root causes of your condition. This book will empower you to create daily and seasonal routines using dietary adjustments, mind-body training, and herbal remedies to reawaken your body and cultivate the wisdom needed to heal from depression.

Medicinal Plants for Cardiovascular and Neurodegenerative Aging-related Diseases: From Bench to Bedside

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Publisher : Frontiers Media SA
ISBN 13 : 2889661601
Total Pages : 294 pages
Book Rating : 4.8/5 (896 download)

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Book Synopsis Medicinal Plants for Cardiovascular and Neurodegenerative Aging-related Diseases: From Bench to Bedside by : Yue Liu

Download or read book Medicinal Plants for Cardiovascular and Neurodegenerative Aging-related Diseases: From Bench to Bedside written by Yue Liu and published by Frontiers Media SA. This book was released on 2020-12-08 with total page 294 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.

Handbook of Sustainable Materials: Modelling, Characterization, and Optimization

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Publisher : CRC Press
ISBN 13 : 1000835022
Total Pages : 506 pages
Book Rating : 4.0/5 (8 download)

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Book Synopsis Handbook of Sustainable Materials: Modelling, Characterization, and Optimization by : Ajay

Download or read book Handbook of Sustainable Materials: Modelling, Characterization, and Optimization written by Ajay and published by CRC Press. This book was released on 2023-03-31 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Sustainable Materials presents recent developments in sustainable materials and how these materials interact with the environment. It highlights the recent advancements involved in proper utilization of sustainable materials, including chemical and biological approaches. With chapters written by global experts, the book offers a guide and insights into sustainable materials from a variety of engineering disciplines. Each chapter provides in-depth technical information on the sustainable materials theory and explores synthesis strategies, green materials, and artificial intelligence. The book considers applications in sectors such as aerospace, automobile, and biomedical for rapid prototyping and customized production without negative environmental impacts. It features research outcomes and case studies of optimization and modeling techniques in practice. Features: Presents recent developments in sustainable materials from various engineering fields and industry applications. Emphasizes analytical strategies, computational, and simulation approaches develop innovative sustainable materials. Discusses an artificial intelligence approach, rapid prototyping, and customized production. This book is designed for researchers and professionals working with sustainable materials, clean manufacturing, and environmental impacts.

Indopathy for Neuroprotection: Recent Advances

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Publisher : Bentham Science Publishers
ISBN 13 : 9815050877
Total Pages : 417 pages
Book Rating : 4.8/5 (15 download)

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Book Synopsis Indopathy for Neuroprotection: Recent Advances by : Surya Pratap Singh

Download or read book Indopathy for Neuroprotection: Recent Advances written by Surya Pratap Singh and published by Bentham Science Publishers. This book was released on 2022-12-07 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Degenerative nerve diseases are age-related, progressive and cause irreversible neurological loss that may lead too death. Chronic diseases like amylotrophic lateral sclerosis, Huntington’s disease, Alzheimer’s disease, and Parkinson’s disease are associated with insoluble protein depositions and pose serious health challenges that may intensify in the coming decades. Current therapies only help to alleviate some of the physical or mental symptoms associated with neurodegenerative diseases, although there is currently no remedy for slow disease progression. In recent years, attempts have been made to discover a mechanism for neurodegenerative diseases and prospective treatment that may help mitigate aging effects and prevent these diseases. Natural products have been a constant source of new approaches for the treatment of neurodegenerative diseases, in particular plant alkaloids and polyphenolic compounds. Indopathy for Neuroprotection: Recent Advances highlights herbal treatments that are preferred over conventional treatments in some regions. Book chapters focus on the effects of various medicinal plants that have shown promise in reversing pathological symptoms of neurodegenerative disease and highlight the neuroprotective role of medicinal herbal phytochemicals and their mechanism of action. The book serves as a reference for pharmacology and herbal medicine scholars as well as healthcare workers interested in information about alternative and complementary therapies for neurological disorders.

Disease Control Priorities, Third Edition (Volume 4)

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Publisher : World Bank Publications
ISBN 13 : 1464804281
Total Pages : 304 pages
Book Rating : 4.4/5 (648 download)

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Book Synopsis Disease Control Priorities, Third Edition (Volume 4) by : Vikram Patel

Download or read book Disease Control Priorities, Third Edition (Volume 4) written by Vikram Patel and published by World Bank Publications. This book was released on 2016-03-10 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mental, neurological, and substance use disorders are common, highly disabling, and associated with significant premature mortality. The impact of these disorders on the social and economic well-being of individuals, families, and societies is large, growing, and underestimated. Despite this burden, these disorders have been systematically neglected, particularly in low- and middle-income countries, with pitifully small contributions to scaling up cost-effective prevention and treatment strategies. Systematically compiling the substantial existing knowledge to address this inequity is the central goal of this volume. This evidence-base can help policy makers in resource-constrained settings as they prioritize programs and interventions to address these disorders.

Nutraceuticals and Natural Product Derivatives

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Publisher : John Wiley & Sons
ISBN 13 : 1119436672
Total Pages : 450 pages
Book Rating : 4.1/5 (194 download)

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Book Synopsis Nutraceuticals and Natural Product Derivatives by : Mohammad Fahad Ullah

Download or read book Nutraceuticals and Natural Product Derivatives written by Mohammad Fahad Ullah and published by John Wiley & Sons. This book was released on 2019-03-06 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduces readers to the growing applications of nutraceuticals and other natural product derivatives This comprehensive book presents a prophylactic and therapeutic approach to chronic disease prevention strategy by highlighting the translational potential of plant-derived dietary and non-dietary factors from epidemiological, laboratory, and clinical studies. It also shares the experiences of highly reputed experts working in the area of phytomedicine and nutraceutical agents in chemoprevention, to promote the significance of natural products and dietary factors as an elite priority for containing chronic diseases in the human population. Nutraceuticals and Natural Product Derivatives: Disease Prevention & Drug Discovery starts by examining natural food sources for the control of glycemia and the prevention of diabetic complications. It then looks at the anti-aging effects of sulfur-containing amino acids and nutraceuticals, and the potential of garcinia fruits to combat metabolic syndrome. Other topics covered include honey- and propolis-mediated regulation of protein networks in cancer cells; recent trends in drug discovery against Alzheimer’s disease; the therapeutic potential of metalloherbal nanoceuticals; and much more. Offers an alternative, natural approach to the prevention of chronic diseases Emphasizes the potential of plant-derived dietary and non-dietary factors from epidemiological, laboratory, and clinical studies Features contributions from world-renowned experts in the field of phytomedicine and nutraceutical agents in chemoprevention Includes prevention strategies in normal/risk populations through routine inclusion of specific dietary regimens and as therapeutic strategy for better management through adjuvant interventions with conventional treatment protocols Nutraceuticals and Natural Product Derivatives: Disease Prevention & Drug Discovery will appeal to graduate students and professionals in cell and molecular biology, translational research, pharmacology/drug discovery, medicinal chemistry, and clinical nutrition.

Neurodegenerative Diseases

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Publisher : Springer
ISBN 13 : 3319571931
Total Pages : 542 pages
Book Rating : 4.3/5 (195 download)

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Book Synopsis Neurodegenerative Diseases by : Philip Beart

Download or read book Neurodegenerative Diseases written by Philip Beart and published by Springer. This book was released on 2017-07-03 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a timely overview of critical advances in molecular and cellular neurobiology, covers key methodologies driving progress, and highlights key future directions for research on neuronal injury and neurodegeneration relevant to neuronal brain pathologies. The editors bring together contributions from internationally recognized workers in the field to provide an up to date account of how and why molecular and cellular neurobiology is such an important area for clinical neuroscience. Understanding the molecular aspects of a number of neurodegenerative conditions such as Parkinson's or Alzheimer's disease for the purpose of improving patient management remains a major challenge of neurobiology be it from the basic or clinical perspective. A strategic evaluation of research contributions and the power of modern methods will help advance knowledge over the next years.

Sustainable Uses and Prospects of Medicinal Plants

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Publisher : CRC Press
ISBN 13 : 1000844528
Total Pages : 678 pages
Book Rating : 4.0/5 (8 download)

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Book Synopsis Sustainable Uses and Prospects of Medicinal Plants by : Learnmore Kambizi

Download or read book Sustainable Uses and Prospects of Medicinal Plants written by Learnmore Kambizi and published by CRC Press. This book was released on 2023-04-12 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sustainable Uses and Prospects of Medicinal Plants presents information on less known and underexplored medicinal plant species in various regions of the world. The book investigates current advances in medicinal plant science and includes detailed information on the use of green nanotechnology, characterization of plants, conservation, revitalization, propagation, and pharmacological activities of selected plants. A volume in the Exploring Medicinal Plants series, it collects information on less known medicinal plant species in various regions of the world for documentation profiling their ethnobotany, developments in their phytochemistry, and pharmacological activities and provides an in-depth look at some specific herbal medicines of importance, threatened and less known species and addresses sustainable utilization and conservation of medicinal plants to ensure existence and use. Appropriate for plant and biodiversity conservation organisations, community leaders, academicians, researchers, and pharmaceutical industry personnel, the book comprises innovative works with information of what is expected to address sustainability in the future.

Drug Design and Discovery in Alzheimer’s Disease

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Publisher : Elsevier
ISBN 13 : 0128039604
Total Pages : 784 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis Drug Design and Discovery in Alzheimer’s Disease by : Atta-ur-Rahman

Download or read book Drug Design and Discovery in Alzheimer’s Disease written by Atta-ur-Rahman and published by Elsevier. This book was released on 2015-06-27 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drug Design and Discovery in Alzheimer’s Disease includes expert reviews of recent developments in Alzheimer's disease (AD) and neurodegenerative disease research. Originally published by Bentham as Frontiers in Drug Design and Discovery, Volume 6and now distributed by Elsevier, this compilation of the sixteen articles, written by leading global researchers, focuses on key developments in the understanding of the disease at molecular levels, identification and validation of molecular targets, as well as innovative approaches towards drug discovery, development, and delivery. Beginning with an overview of AD pharmacotherapy and existing blockbuster drugs, the reviews cover the potential of both natural and synthetic small molecules; the role of cholinesterases in the on-set and progression of AD and their inhibition; the role of beta-site APP clearing enzyme-1 (BACE-1) in the production of ß-amyloid proteins, one of the key reasons of the progression of AD; and other targets identified for AD drug discovery. Edited and written by leading experts in Alzheimer’s disease (AD) and other neurodegenerative disease drug development Describes existing drugs for AD and current molecular understanding of the condition Reviews recent advances in the field, including coverage of cholinesterases, BACE-1, and other drug development targets

Cognitive Enhancing Drugs

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Publisher : Birkhäuser
ISBN 13 : 3034878672
Total Pages : 213 pages
Book Rating : 4.0/5 (348 download)

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Book Synopsis Cognitive Enhancing Drugs by : Jerry J. Buccafusco

Download or read book Cognitive Enhancing Drugs written by Jerry J. Buccafusco and published by Birkhäuser. This book was released on 2012-12-06 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the past decade research into the pharmacology of cognition, particularly regarding learning and memory, has supported the concept that many potential neural targets exist for the development of cognitive-enhancing drugs. Whereas the main impetus for this research has been the ever growing population of individuals with dementing disorders such as Alzheimer`s disease, attention is also being focused on issues relating to cognitive impairment associated with "normal" aging. This book is useful as a source of information for making informed decisions regarding the relative utility and attributes of the various neural targets that have been studied to date.

Nutraceuticals in Brain Health and Beyond

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Publisher : Academic Press
ISBN 13 : 0128206101
Total Pages : 476 pages
Book Rating : 4.1/5 (282 download)

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Book Synopsis Nutraceuticals in Brain Health and Beyond by : Dilip Ghosh

Download or read book Nutraceuticals in Brain Health and Beyond written by Dilip Ghosh and published by Academic Press. This book was released on 2020-11-12 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nutraceuticals in Brain Health and Beyond focuses on a variety of health disorders where intervention with nutritional supplements prove valuable, such as Alzheimer’s, Parkinson’s, autism, and attention-deficit disorder in children. In addition, Nutraceuticals in Brain Health and Beyond addresses "herb-nutra psychiatry" which is a field of research focused on developing a comprehensive, cohesive, and scientifically rigorous evidence base to shift conceptual thinking around the role of diet and nutrition in mental health. Intended for nutrition researchers, nutritionists, dieticians, regulatory bodies, health professionals, and students studying related fields, Nutraceuticals in Brain Health and Beyond will be a useful reference in understanding the links between nutrition and brain health. • Addresses nutritional psychiatry and cognitive health at all stages of the lifespan • Contains extensive coverage of vitamins, minerals, botanicals, and other nutrients • Offers novel insight into cognitive dysfunctions including depression and other neurodegenerative disorders • Explores the role of genomics and epigenetics, including discussion of the gut–brain axis

Drug Repurposing

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Publisher : BoD – Books on Demand
ISBN 13 : 1839685204
Total Pages : 236 pages
Book Rating : 4.8/5 (396 download)

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Book Synopsis Drug Repurposing by : Farid A. Badria

Download or read book Drug Repurposing written by Farid A. Badria and published by BoD – Books on Demand. This book was released on 2020-12-02 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drug repurposing or drug repositioning is a new approach to presenting new indications for common commercial and clinically approved existing drugs. For example, chloroquine, an old antimalarial drug, showed promising results for treating COVID-19, interfering with MDR in several types of cancer, and chemosensitizing human leukemic cells.This book focuses on the hypothesis, risk/benefits, and economic impacts of drug repurposing on drug discovery in dermatology, infectious diseases, neurological disorders, cancer, and orphan diseases. It brings together up-to-date research to provide readers with an informative, illustrative, and easy-to-read book useful for students, clinicians, and the pharmaceutical industry.

Levodopa pharmacokinetics -from stomach to brain

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Publisher : Linköping University Electronic Press
ISBN 13 : 9176855570
Total Pages : 72 pages
Book Rating : 4.1/5 (768 download)

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Book Synopsis Levodopa pharmacokinetics -from stomach to brain by : Maria Nord

Download or read book Levodopa pharmacokinetics -from stomach to brain written by Maria Nord and published by Linköping University Electronic Press. This book was released on 2019-01-07 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Parkinson’s disease (PD) is one of the most common neurodegenerative disorders and it is caused by a loss of dopamine (DA) producing neurons in the basal ganglia in the brain. The PD patient suffers from motor symptoms such as tremor, bradykinesia and rigidity and treatment with levodopa (LD), the precursor of DA, has positive effects on these symptoms. Several factors affect the availability of orally given LD. Gastric emptying (GE) is one factor and it has been shown to be delayed in PD patients resulting in impaired levodopa uptake. Different enzymes metabolize LD on its way from the gut to the brain resulting in less LD available in the brain and more side effects from the metabolites. By adding dopa decarboxylase inhibitors (carbidopa or benserazide) or COMT-inhibitors (e.g. entacapone) the bioavailability of LD increases significantly and more LD can pass the blood-brain-barrier and be converted to DA in the brain. It has been considered of importance to avoid high levodopa peaks in the brain because this seems to induce changes in postsynaptic dopaminergic neurons causing disabling motor complications in PD patients. More continuously given LD, e.g. duodenal or intravenous (IV) infusions, has been shown to improve these motor complications. Deep brain stimulation of the subthalamic nucleus (STN DBS) has also been proven to improve motor complications and to make it possible to reduce the LD dosage in PD patients. In this doctoral thesis the main purpose is to study the pharmacokinetics of LD in patients with PD and motor complications; in blood and subcutaneous tissue and study the effect of GE and PD stage on LD uptake and the effect of continuously given LD (CDS) on LD uptake and GE; in blood and cerebrospinal fluid (CSF) when adding the peripheral enzyme inhibitors entacapone and carbidopa to LD infusion IV; in brain during STN DBSand during oral or IV LD treatment. To conclude, LD uptake is more favorable in PD patients with less severe disease and GE is delayed in PD patients. No obvious relation between LD uptake and GE or between GE and PD stage is seen and CDS decreases the LD levels. Entacapone increases the maximal concentration of LD in blood and CSF. This is more evident with additional carbidopa and important to consider in avoiding high LD peaks in brain during PD treatment. LD in brain increases during both oral and IV LD treatment and the DA levels follows LD well indicating that PD patients still have capacity to metabolize LD to DA despite probable pronounced nigral degeneration. STN DBS seems to increase putaminal DA levels and together with IV LD treatment also increases LD in brain possibly explaining why it is possible to decrease LD medication after STN DBS surgery. Parkinsons sjukdom (PS) är en av de vanligaste s.k. neurodegenerativasjukdomarna och orsakas av förlust av dopamin(DA)producerande nervceller i hjärnan. Detta orsakar motoriska symptom såsom skakningar, stelhet och förlångsammade rörelser. Levodopa (LD) är ett ämne, som kan omvandlas till DA i hjärnan och ge symptomlindring och det är oftast förstahandsval vid behandling av patienter med PS. Flera faktorer påverkar tillgängligheten av LD, bl.a. den hastighet som magsäcken tömmer sig med och denna verkar förlångsammad hos personer med PS vilket ger sämre tillgänglighet av LD i blodet och därmed i hjärnan. LD bryts även ner i hög grad av olika enzym ute i kroppen vilket leder till mindre mängd LD som hamnar i hjärnan och till fler nedbrytningsprodukter som orsakar biverkningar. Tillägg av enzymhämmare leder till ökad mängd LD som kan nå hjärnan och omvandlas till DA. Det anses viktigt att undvika höga toppar av LD i hjärnan då dessa verkar bidra till utvecklandet av besvärliga motoriska komplikationer hos patienter med PS. Om LD ges mer kontinuerligt, exempelvis som en kontinuerlig infusion in i tarmen eller i blodet, så minskar dessa motoriska komplikationer. Inopererande av stimulatorer i vissa delar av hjärnan (DBS) har också visat sig minska dessa motoriska komplikationer och även resultera i att man kan minska LD-dosen. Huvudsyftet med den här avhandlingen är att studera LD hos patienter med PS; i blod och fettvävnad då LD ges i tablettform och se om det finns något samband med LD-upptag och hastigheten på magsäckstömningen (MT) och om kontinuerligt given LD påverkar LD-upptaget eller MT; i blod och i ryggmärgsvätska då enzymhämmarna entakapon och karbidopa tillsätts LD; i hjärna vid behandling med DBS och då LD ges både som tablett och som infusion i blodet. Sammanfattningsvis kan vi se att LD-upptaget är mer gynnsamt hos patienter med PS i tidigare skede av sjukdomens komplikationsfas. MT är förlångsammad hos patienter med PS och det är inget tydligt samband mellan LD-upptag och MT eller mellan MT och sjukdomsgrad. Kontinuerligt given LD minskar LDnivåerna. Enzymhämmaren entakapon ökar den maximala koncentrationen av LD i blod och ryggmärgsvätska och effekten är mer tydlig vid tillägg av karbidopa vilket är viktigt att ta i beaktande vid behandling av PS för att undvika höga toppar av LD i hjärnan. LD ökar i hjärnan då man behandlar med LD i tablettform och som infusion i blodet och DA-nivåerna i hjärnan följer LD väl vilket visar på att patienter med PS fortfarande kan omvandla LD till DA trots trolig uttalad brist av de DA-producerande nervcellerna i hjärnan. DBS verkar öka DA i vissa områden i hjärnan och tillsammans med LD-infusion i blodet verkar det även öka LD i hjärnan och det kan förklara varför man kan sänka LDdosen efter DBS-operation.