Early Diagnosis and Preventive Therapy in Parkinson’s Disease PDF Download
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Author: Horst Przuntek
Publisher: Springer Science & Business Media
ISBN: 3709189942
Category : Medical
Languages : en
Pages : 356
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Book Description
At the time when "Parkinson's Disease" is diagnosed in a patient, roughly two thirds of dopaminergic neurons of substantia nigra are already degenerated. The onset of the disease must, therefore, be much earlier. This book deals with early diagnosis and early preventive treatment which may sustain the process underlying the disease. By use of psychometric, kinesiologic, physiologic, histologic, biochemical, endocrinologic, pharmacologic and imaging techniques, including positron-emission tomography and brain mapping, specialists tried to focus on new diagnostic criteria. New methods including psychometric evaluation, apparative measurement of movement, analysis of peripheral blood and urinary constituents have supplemented this approach. It has been agreed that early preventive therapy consists of low dosis of L-DOPA plus benserazide, L-deprenyl and dopaminergic agonists.
Author: Horst Przuntek
Publisher: Springer Science & Business Media
ISBN: 3709189942
Category : Medical
Languages : en
Pages : 356
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Book Description
At the time when "Parkinson's Disease" is diagnosed in a patient, roughly two thirds of dopaminergic neurons of substantia nigra are already degenerated. The onset of the disease must, therefore, be much earlier. This book deals with early diagnosis and early preventive treatment which may sustain the process underlying the disease. By use of psychometric, kinesiologic, physiologic, histologic, biochemical, endocrinologic, pharmacologic and imaging techniques, including positron-emission tomography and brain mapping, specialists tried to focus on new diagnostic criteria. New methods including psychometric evaluation, apparative measurement of movement, analysis of peripheral blood and urinary constituents have supplemented this approach. It has been agreed that early preventive therapy consists of low dosis of L-DOPA plus benserazide, L-deprenyl and dopaminergic agonists.
Author: Jonas H. Ellenberg
Publisher: CRC Press
ISBN: 9780824788230
Category : Medical
Languages : en
Pages : 600
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Book Description
This comprehensive reference provides a detailed overview of current concepts regarding the cause of Parkinson's disease-emphasizing the issues involved in the design, implementation, and analysis of epidemiological studies of parkinsonism.
Author: Horst Przuntek
Publisher:
ISBN: 9783709189955
Category :
Languages : en
Pages : 464
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Book Description
Author: Cristian Falup-Pecurariu
Publisher: Academic Press
ISBN: 0323851231
Category : Technology & Engineering
Languages : en
Pages : 316
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Book Description
Autonomic dysfunction is one of the most prevalent non-motor symptoms that occurs in Parkinson's disease. Autonomic Dysfunction in Parkinson's Disease provides up to date information on this important topic, which affects quality of life of these patients. This include a large number of domains: orthostatic hypotension, excessive sweating, dry eyes, constipation, weight loss, increased sensitivity to heat and cold, sexual dysfunction. - Provides comprehensive reviews on different topics of autonomic dysfunction in Parkinson's disease - Each chapter covers a specific autonomic symptom: classification, assessment, treatment - Presents the newest information on each autonomic symptom in Parkinson's disease
Author: Ana Aragon
Publisher:
ISBN: 9781905944163
Category : Occupational therapy
Languages : en
Pages : 76
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Book Description
These practice guidelines draw upon the widest relevant knowledge and evidence available to describe and inform contemporary best practice occupational therapy for people with Parkinson's disease. They include practical examples of interventions to allow occupational therapists to apply new treatments to their practice.
Author: James Parkinson
Publisher:
ISBN:
Category : Parkinson's disease
Languages : en
Pages : 86
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Book Description
Author: Philippe Dostert
Publisher: Springer Science & Business Media
ISBN: 3709190983
Category : Medical
Languages : en
Pages : 401
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Book Description
The aim of Early Markers in Parkinson's and Alzheimer's Diseases is to provide the reader with updated data on various approaches whose investigation and development could contribute to the discovery of early diag- nostic markers of these two degenerative diseases. Concerning Parkinson's disease, some of the topics dealt with in the book will help update the information previously reported in Early Diagnosis and Preventive Therapy in Parkinson's Disease. Concerning Alzheimer's disease, the scope and limitations of electrophysiological and brain imaging techniques with regards to early detection of the disease are documented. Various biochemical parameters, such as brain energy metabolism, levels of choline, and platelet monoamine oxidase activity are envisaged as some of the starting points for the discovery of early diagnostic markers of Alzheimer's disease.
Author: National Library of Medicine (U.S.)
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1178
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Book Description
Author: National Institute of Neurological and Communicative Disorders and Stroke
Publisher:
ISBN:
Category : Parkinson's disease
Languages : en
Pages : 20
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Book Description
Author: Maria Nord
Publisher: Linköping University Electronic Press
ISBN: 9176855570
Category :
Languages : sv
Pages : 81
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Book Description
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.
