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Related Concept Videos

Parkinson's Disease: Treatment01:24

Parkinson's Disease: Treatment

255
Neurodegenerative disorders, such as Parkinson's Disease (PD), involve the gradual and irreversible destruction of neurons in particular brain areas. These disorders exhibit standard features like proteinopathies, selective vulnerability of some neurons, and an interaction of intrinsic properties, genetics, and environmental influences in neural injury.
Parkinson's Disease is primarily a result of the loss of dopaminergic neurons in the substantia nigra pars compacta. The cornerstone of...
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Ganglionic stimulants activate NM nicotinic receptors in autonomic ganglia, falling into two categories: nicotine mimetics [e.g., lobeline, dimethylpiperazine, tetramethylammonium] and muscarinic receptor agonists [e.g., muscarine, methacholine]. The first category's action is rapid and blocked by nicotinic receptor antagonists, while the second category's action is delayed and blocked by atropine-like agents. Nicotine, an alkaloid, affects the heart rate by stimulating...
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Related Experiment Video

Updated: Jun 23, 2025

Induction and Assessment of Levodopa-induced Dyskinesias in a Rat Model of Parkinson's Disease
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[Inhaled levodopa: from evidence to experience].

J C Martínez-Castrillo1, I Pareés-Moreno2, J L López Sendón-Moreno2

  • 1Hospital Universitario Ramón y Cajal, 28034 Madrid, España.

Revista De Neurologia
|June 25, 2024
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Summary
This summary is machine-generated.

Parkinson's disease patients often face motor fluctuations. On-demand treatments like subcutaneous apomorphine, inhaled levodopa, and sublingual apomorphine offer faster relief from

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Area of Science:

  • Neurology
  • Pharmacology

Background:

  • Parkinson's disease (PD) frequently causes motor fluctuations ('off' periods), significantly impacting daily life and quality of life.
  • Patients often experience these fluctuations despite optimized oral medication regimens.

Purpose of the Study:

  • To review on-demand therapies for Parkinson's disease motor fluctuations.
  • To compare the pharmacokinetic profiles, onset of action, duration, and side effect profiles of available on-demand treatments.
  • To highlight the role and experience of inhaled levodopa as a newer dosage form.

Main Methods:

  • Review of current on-demand therapies for Parkinson's disease motor fluctuations.
  • Comparative analysis of subcutaneous apomorphine, inhaled levodopa, and sublingual apomorphine.
  • Focus on clinical experience with inhaled levodopa.

Main Results:

  • Subcutaneous apomorphine offers the fastest onset of action.
  • Sublingual apomorphine provides the longest duration of clinical effect.
  • Inhaled levodopa presents a favorable side effect profile.

Conclusions:

  • On-demand therapies are crucial for managing Parkinson's disease motor fluctuations.
  • Each therapy (subcutaneous apomorphine, inhaled levodopa, sublingual apomorphine) has distinct characteristics.
  • Patient-specific needs and circumstances guide the selection of the most appropriate on-demand treatment.