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Related Concept Videos

Parkinson's Disease: Treatment01:24

Parkinson's Disease: Treatment

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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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Parkinson Disease l: Introduction01:24

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Parkinson’s disease is a chronic, progressive neurodegenerative disorder that primarily affects movement. It is characterized by motor symptoms such as resting tremors, muscle rigidity, bradykinesia (slowness of movement), and postural instability. Patients may notice hand tremors at rest, stiffness during movement, or a shuffling gait. In addition to motor features, non-motor symptoms include sleep disturbances, mood and behavioral changes, constipation, and cognitive impairment, all of...
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Parkinson Disease ll: Pathophysiology01:24

Parkinson Disease ll: Pathophysiology

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Parkinson disease (PD) is a progressive neurodegenerative disorder primarily affecting movement, with additional non-motor features. Its pathophysiology involves complex interactions among genetic susceptibility, environmental exposures, and cellular dysfunction, including dopaminergic neuron loss, protein aggregation, and mitochondrial impairment.Selective NeurodegenerationA key feature is the degeneration of dopaminergic neurons in the substantia nigra pars compacta, leading to reduced...
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Parkinson's Disease: Overview01:15

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Neurodegenerative disorders are progressive diseases that cause irreversible damage and loss to neurons in specific brain areas. Examples of these disorders include Parkinson's disease, Alzheimer's disease, Multiple Sclerosis (MS), and Amyotrophic Lateral Sclerosis (ALS). These disorders share characteristics such as proteinopathies, selective neuronal vulnerability, and a complex interplay between genetic and environmental factors. The primary therapeutic goal for these conditions is...
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Alterations in Muscle Tone lll01:11

Alterations in Muscle Tone lll

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Rigidity and myotonia are distinct abnormalities of muscle tone that affect resistance and relaxation during movement. Although both involve altered muscle contraction, they arise from different neurological and muscular mechanisms.CharacteristicsRigidity is characterized by uniform resistance to passive movement across the entire range, independent of speed, affecting flexors and extensors equally. It may appear as lead-pipe rigidity (smooth, constant resistance) or cogwheel rigidity...
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Neural Regulation01:37

Neural Regulation

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Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.
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Related Experiment Video

Updated: May 4, 2026

Three Laboratory Procedures for Assessing Different Manifestations of Impulsivity in Rats
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[Impulse control disorders in Parkinson's disease].

Juho Joutsa1, Valtteri Kaasinen2

  • 1Satakunnan keskussairaala, neurologian klinikka, TYKS.

Duodecim; Laaketieteellinen Aikakauskirja
|January 9, 2014
PubMed
Summary
This summary is machine-generated.

Impulse control disorders affect up to one-third of Parkinson's disease patients, with dopamine agonist medications increasing this risk. Discontinuing these drugs is the primary treatment for these conditions.

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Area of Science:

  • Neuroscience
  • Neurology
  • Psychiatry

Context:

  • Parkinson's disease (PD) affects millions globally.
  • Impulse control disorders (ICDs) are a significant comorbidity in PD.
  • Dopaminergic therapies are standard for PD management.

Purpose:

  • To investigate the link between dopaminergic drugs and ICDs in Parkinson's disease.
  • To identify the neurobiological underpinnings of these disorders.
  • To establish treatment guidelines for ICDs in PD patients.

Summary:

  • Up to 33% of Parkinson's disease patients experience impulse control problems.
  • Pathological gambling, hypersexuality, compulsive shopping, and binge eating are common ICDs.
  • Dopamine agonists, used in Parkinson's treatment, elevate the risk of developing ICDs.
  • These disorders are linked to heightened dopamine activity in mesolimbic and mesocortical pathways.
  • Discontinuation of dopamine agonist therapy is the recommended first-line treatment.

Impact:

  • Informing clinical practice for managing Parkinson's disease comorbidities.
  • Reducing the incidence and severity of impulse control disorders in PD patients.
  • Improving the quality of life for individuals with Parkinson's disease and impulse control issues.