Mechanism And Pharmacodynamic Material Basis Of Neurodegenerative Disease Therapies

Author : Zhi Sun,Erxi Wu,Yi Wang
Publisher : Frontiers Media SA
Page : 168 pages
File Size : 54,7 Mb
Release : 2023-08-25
Category : Medical
ISBN : 9782832531662

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Mechanism and Pharmacodynamic Material Basis of Neurodegenerative Disease Therapies by Zhi Sun,Erxi Wu,Yi Wang Pdf

Neurodegenerative diseases are debilitating disorders defined as loss of function or progressive destructing structure of the nervous system with high prevalence among the aging population. These diseases mainly include Alzheimer’s disease (AD), Parkinson’s disease (PD), Huntington’s disease (HD), and amyotrophic lateral sclerosis (ALS). They are significantly associated with age and degeneration, becoming a devastating global health issue as a result of the growth of mean life expectancy worldwide. Few or no effective treatments are available for age-related neurodegenerative diseases, causing large socioeconomic and personal costs. The last 15 years have seen a boom in the use and integration of “omic” approaches (such as genomic, transcriptomic, epigenomic and metabolomic techniques) to study neurodegenerative disease in an unprecedented way. While, to date, no therapy based on these approaches is available to cure neurodegenerative diseases. Therefore, it is necessary to search for new, safe, and effective drug candidates and treatment strategies. In this Research Topic, our prime focus would be on the use and integration of “omic” approaches to study biomarkers, pathogenesis, disease progression and new therapeutic target of neurodegenerative diseases, so as to search for new, safe, and effective drug candidates.

Author : Maria Nord
Publisher : Linköping University Electronic Press
Page : 72 pages
File Size : 42,9 Mb
Release : 2019-01-07
Category : Electronic
ISBN : 9789176855577

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Levodopa pharmacokinetics -from stomach to brain by Maria Nord Pdf

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.

Author : Kyōto Daigaku
Publisher : Unknown
Page : 508 pages
File Size : 53,5 Mb
Release : 2002
Category : Universities and colleges
ISBN : IND:30000075169635

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Kyoto University Bulletin by Kyōto Daigaku Pdf

Author : National Collaborating Centre for Chronic Conditions (Great Britain)
Publisher : Royal College of Physicians
Page : 243 pages
File Size : 44,9 Mb
Release : 2006
Category : Basal ganglia
ISBN : 9781860162831

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Parkinson's Disease by National Collaborating Centre for Chronic Conditions (Great Britain) Pdf

Author : Ramesh C Gupta,Rajiv Lall,Ajay Srivastava
Publisher : Academic Press
Page : 1397 pages
File Size : 44,9 Mb
Release : 2021-01-27
Category : Medical
ISBN : 9780128212462

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Nutraceuticals by Ramesh C Gupta,Rajiv Lall,Ajay Srivastava Pdf

Nutraceuticals: Efficacy, Safety and Toxicity, Second Edition, brings together everything that is currently known about nutraceuticals and their potential toxic effects. The book introduces readers to nutraceuticals, herbal medicines, Ayurvedic medicines, prebiotics, probiotics, adaptogens, and their uses and specific applications. This essential reference discusses the mechanism of action for the judicious use of these nutraceuticals and the best tools for their evaluation before detailing the safety and toxicity of nutraceuticals and interactions with other therapeutic drugs. Finally, and crucially, regulatory aspects from around the world are covered. Completely revised and updated, this updated edition provides toxicologists, pharmacologists, pharmaceutical scientists, and those interested in medicinal plants and natural products with a comprehensive overview of the most effective tools upon which to evaluate the safety and toxicity of nutraceuticals, prebiotics, probiotics and alternative medicines. Presents a completely revised and updated resource on the impact of nutraceuticals and various disease states such as diabetes and ophthalmic and dermal diseases Grants an overview of the current state-of-the-science of nutraceuticals, their use and applications, and known adverse effects Provides effective tools to evaluate the potential toxicity of any nutraceutical Includes details of regulatory issues as written by international experts

Author : Nagehan Ersoy Tunalı
Publisher : BoD – Books on Demand
Page : 180 pages
File Size : 42,8 Mb
Release : 2021-01-20
Category : Science
ISBN : 9781838801496

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Neurodegenerative Diseases by Nagehan Ersoy Tunalı Pdf

Neurodegenerative diseases represent a very large group of heterogeneous disorders affecting specific subtypes of neurons in the brain. This book contributes insight both to the awareness of the brain and its neurodegenerative states. The chapters present current knowledge regarding genetics, molecular mechanisms, and new therapeutic strategies against neurodegenerative disorders. The book is intended to serve as a source to aid clinicians and researchers in the field, and also life science readers to increase their understanding and awareness of the clinical correlations, genetic aspects, neuropathological findings, and current therapeutic interventions in neurodegenerative diseases. I believe that this book will enlighten the curiosity for neurodegeneration and also encourage researchers to work on potentially effective molecular therapies for still mysterious neurodegenerative disorders.

Author : Jing-Yan Han,Qiaobing Huang,Jincai Luo,Gerald A. Meininger
Publisher : Frontiers Media SA
Page : 357 pages
File Size : 47,8 Mb
Release : 2021-08-03
Category : Science
ISBN : 9782889711420

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Traditional Chinese Medicine: Organ Vascular Injury - Volume II by Jing-Yan Han,Qiaobing Huang,Jincai Luo,Gerald A. Meininger Pdf

Author : K.P. Ebmeier,J.T. O'Brien,J.-P. Taylor
Publisher : Karger Medical and Scientific Publishers
Page : 158 pages
File Size : 49,6 Mb
Release : 2012-01-09
Category : Medical
ISBN : 9783805598019

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Psychiatry of Parkinson's Disease by K.P. Ebmeier,J.T. O'Brien,J.-P. Taylor Pdf

Psychiatric symptoms are common in the neurological and geriatric care of patients with Parkinson’s disease. This book assembles short reviews from experts in the field to chart the various psychiatric syndromes known in Parkinson’s disease, their presentation, etiology and management. Presented are special topics on epidemiology of psychiatric symptoms, affective disorders and apathy, early cognitive impairment through to dementia, visuoperceptual dysfunction, psychotic disorders, sleep disturbances, impulse disorders and sexual problems. Further, rarely discussed issues, such as the relationship between somatoform disorders and parkinsonism are reviewed.This publication is essential reading for old age psychiatrists, gerontologists and neurologists who work with patients suffering from Parkinson’s disease. In addition, health practitioners who deal with senior patients, as well as scientists who need a quick update on the progress in this important clinical field will find this volume a helpful reference.

Author : Ralph N. Martins,Charles S. Brennan,Binosha Fernando,Margaret A. Brennan,Stephanie J. Fuller
Publisher : John Wiley & Sons
Page : 548 pages
File Size : 50,9 Mb
Release : 2019-07-10
Category : Technology & Engineering
ISBN : 9781119356783

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Neurodegeneration and Alzheimer's Disease by Ralph N. Martins,Charles S. Brennan,Binosha Fernando,Margaret A. Brennan,Stephanie J. Fuller Pdf

Understanding the impact of diet, exercise, genetics, and hormones on the risk and development of Alzheimer’s and other neurogenerative diseases Diet is widely known to impact on neurological function. Nevertheless, academic texts discussing this relationship are relatively few in number. This book therefore fills an important gap in the current literature. Opening with an overview of neurodegenerative diseases, particularly Alzheimer’s disease, the text then focuses on explaining the means by which glycemic control and lipid metabolism – and associated nutritional and lifestyle variables – may factor into such disorders’ prevention and treatment. An international group of experts in the fields of food science and neurodegeneration have contributed chapters that examine Alzheimer’s disease within a broad range of contexts. Offering dietary, genetic, and hormonal perspectives, the authors explore topics ranging from sugar consumption to digestive fermentation, and Alzheimer’s disease animal models to the cognition-enhancing effects of physical exercise. Also included are overviews of the latest research into current and developing methods of treatment and diagnosis, as well as differential diagnostics. This groundbreaking book: Explores how glucose metabolism, insulin resistance, lipid metabolism, and high intake of refined carbohydrates are linked to Alzheimer's disease Discusses how genetic makeup can impact risk of Alzheimer’s and Parkinson’s disease Examines cognitive changes in neurodegeneration, lists current tests for determining cognitive impairment, and provides information concerning differential diagnosis Discusses potential advantages of increasing antioxidant and micronutrient intake Reviews hormonal influences on neurodegeneration Examines the links between protein intake and Alzheimer’s disease. Neurodegeneration and Alzheimer's Disease is an essential resource for researchers, medical practitioners, dietitians, and students with an interest in neurological diseases and their diagnosis and risk factors, as well as diet-related conditions such as diabetes and obesity. Lifestyle and diet influence neurodegeneration risk, and a better understanding of this evidence amongst health professionals will hopefully lead to greater public awareness of how to reduce the likelihood of these widespread conditions.

Author : Anton Ficai,Alexandru Mihai Grumezescu
Publisher : Elsevier
Page : 722 pages
File Size : 48,6 Mb
Release : 2017-05-29
Category : Medical
ISBN : 9780323461511

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Nanostructures for Antimicrobial Therapy by Anton Ficai,Alexandru Mihai Grumezescu Pdf

Nanostructures for Antimicrobial Therapy discusses the pros and cons of the use of nanostructured materials in the prevention and eradication of infections, highlighting the efficient microbicidal effect of nanoparticles against antibiotic-resistant pathogens and biofilms. Conventional antibiotics are becoming ineffective towards microorganisms due to their widespread and often inappropriate use. As a result, the development of antibiotic resistance in microorganisms is increasingly being reported. New approaches are needed to confront the rising issues related to infectious diseases. The merging of biomaterials, such as chitosan, carrageenan, gelatin, poly (lactic-co-glycolic acid) with nanotechnology provides a promising platform for antimicrobial therapy as it provides a controlled way to target cells and induce the desired response without the adverse effects common to many traditional treatments. Nanoparticles represent one of the most promising therapeutic treatments to the problem caused by infectious micro-organisms resistant to traditional therapies. This volume discusses this promise in detail, and also discusses what challenges the greater use of nanoparticles might pose to medical professionals. The unique physiochemical properties of nanoparticles, combined with their growth inhibitory capacity against microbes has led to the upsurge in the research on nanoparticles as antimicrobials. The importance of bactericidal nanobiomaterials study will likely increase as development of resistant strains of bacteria against most potent antibiotics continues. Shows how nanoantibiotics can be used to more effectively treat disease Discusses the advantages and issues of a variety of different nanoantibiotics, enabling medics to select which best meets their needs Provides a cogent summary of recent developments in this field, allowing readers to quickly familiarize themselves with this topic area

Author : Paul D. Thompson,Beth A. Taylor
Publisher : Springer Nature
Page : 191 pages
File Size : 54,9 Mb
Release : 2020-01-25
Category : Medical
ISBN : 9783030333041

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Statin-Associated Muscle Symptoms by Paul D. Thompson,Beth A. Taylor Pdf

This book provides an overview of statin-associated muscle symptoms (SAMS) from clinical presentation to treatment and possible metabolic causes. It examines the risk factors, presentations, diagnosis and differential diagnosis, clinical management, and financial costs of SAMS. The book also highlights patients’ perspectives on SAMS such as the psychosocial, emotional, and societal factors influencing their perceptions and experiences. Finally, the book presents the results of observational and clinical trials on the prevalence of SAMS, clinical trials for treatments, and potential future research approaches for improving the understanding and treatment of SAMS. A key addition to the Contemporary Cardiology series, Statin-Associated Muscle Symptoms is an essential resource for physicians, medical students, residents, fellows, and allied health professionals in cardiology, endocrinology, pharmacotherapy, primary care, and health promotion and disease prevention.

Author : Peter M. Haddad,David J. Nutt
Publisher : Unknown
Page : 128 pages
File Size : 54,5 Mb
Release : 2020
Category : Electronic
ISBN : 191162346X

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Seminars in Clinical Psychopharmacology by Peter M. Haddad,David J. Nutt Pdf

"The 2nd edition of this book was edited by David King and published in 2004. Since then there have been major advances in psychopharmacology in terms of new medications coming to the market, increased understanding of the mechanisms of drug action and new data on the efficacy, tolerability, safety and clinical effectiveness of a range of medications. Partly as a result, clinical guidelines for many psychiatric disorders have altered. As such, a new edition of this textbook was essential and we were delighted when the College approached us to edit the 3rd edition. This was a major endeavor that was only possible with the commitment and expertise of the authors"--

Author : Joana M. Gaspar,Humberto M. Carvalho,Alberto Camacho-Morales
Publisher : Frontiers Media SA
Page : 73 pages
File Size : 54,9 Mb
Release : 2022-01-20
Category : Science
ISBN : 9782889741168

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Metabolic Disorders Associated with Autism Spectrum Disorders: Approaches for Intervention by Joana M. Gaspar,Humberto M. Carvalho,Alberto Camacho-Morales Pdf

Author : Bertram G. Katzung
Publisher : Unknown
Page : 1217 pages
File Size : 48,9 Mb
Release : 2001
Category : Clinical pharmacology
ISBN : 0071179682

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Basic and Clinical Pharmacology by Bertram G. Katzung Pdf

This best selling book delivers the most current, complete, and authoritative pharmacology information to students and practitioners. All sections are updated with new drug information and references. New! Many new figures and diagrams, along with boxes of highlighted material explaining the "how and why" behind the facts.

Author : Richard Eugene Frye,Michael Berk
Publisher : Springer
Page : 394 pages
File Size : 49,5 Mb
Release : 2018-09-20
Category : Medical
ISBN : 9789811053115

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The Therapeutic Use of N-Acetylcysteine (NAC) in Medicine by Richard Eugene Frye,Michael Berk Pdf

Focusing on the practical use of N-Acetyl-Cysteine (NAC) in medicine, this book provides a comprehensive review of the basic biological and clinical studies documenting its benefits in treating medical disease. NAC is perhaps best known as an antidote for acetaminophen, but its therapeutic effect in a wide range of medical diseases has recently been realized. In addition to its well recognized use in radiological contrast prophylaxis for renal disease and pulmonary disorders, studies have suggested significant promise in psychiatric and neurological disorders such as addiction, Alzheimer’s disease, ataxia, autism, bipolar disorder, depression, epilepsy, neuropathy, obsessive-compulsive disorder, schizophrenia, traumatic brain injury and trichotillomania in addition to promising studies in audiology, cardiology, exercise physiology, gastroenterology, hematology, infectious disease, infertility and ophthalmology. Given the promising studies for a wide range of medical conditions, coupled with a excellent safety profile, the potential for NAC in the treatment of human disease appears considerable. Dr Leonore A Herzenberg from Stanford University, a pioneer of redox physiology and the use of NAC, provides a succinct history of the development of the therapeutic use of NAC for medical disease. This is followed by a series of basic science chapters outlining the role of NAC in important physiological processes, including modulation of dopamine and glutamate neurotransmitter systems, redox and mitochondrial metabolism, apoptosis and inflammation. The last section of the book is dedicated to clinically oriented chapters that comprehensively review the literature on medical disorders in which NAC has been found to be effective, including toxicity and cardiovascular, gastrointestinal, neurological, psychiatric, pulmonary and renal disorders. Each chapter reviews the theoretical biological mechanisms of NAC for the specific diseases reviewed, rates the clinical studies using a standardized criteria in order to provide an objective level of evidence and grade of recommendation for the use of NAC for specific medical conditions and outlines the ongoing clinical trials examining NAC for the treatment of specific diseases. Final chapters review the clinical evidence verifying that specific theoretical biological mechanisms are actually being targeted by NAC in medical disease. Studies on the pharmacology, formulation and potential adverse effects of NAC are also reviewed. A final chapter synthesizes the clinical studies to suggest that the effectiveness of NAC may signal a new basic physiological disorder, glutathione deficiency, which may be an important pathophysiological mechanism of many diseases.