Related Experiment Video

Updated: Aug 18, 2026

The Use of the Puzzle Box as a Means of Assessing the Efficacy of Environmental Enrichment
06:50

The Use of the Puzzle Box as a Means of Assessing the Efficacy of Environmental Enrichment

Published on: December 29, 2014

Environmental enrichment in adulthood eliminates neuronal death in experimental Parkinsonism

Ciaran J Faherty1, Kennie Raviie Shepherd, Anna Herasimtschuk

  • 1Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Mail Stop 323, 332 North Lauderdale, Memphis, TN 38017, USA.

Brain Research. Molecular Brain Research
|March 26, 2005
PubMed

Insights

An enriched environment or exercise alone can prevent Parkinsonism. This non-pharmacological approach protects dopamine neurons by altering neurotrophic factors and dopamine transporters, offering potential for Parkinson

Area of Science:

  • Neuroscience
  • Neurobiology
  • Neurodegenerative Diseases

Background:

  • Idiopathic Parkinson's disease (PD) is characterized by progressive loss of dopamine neurons in the substantia nigra pars compacta.
  • The 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) model recapitulates key pathologies of PD.
  • PD affects approximately 2% of adults over 50 years of age.

Purpose of the Study:

  • To investigate the neuroprotective effects of an enriched environment (EE) and exercise against MPTP-induced Parkinsonism.
  • To explore the molecular mechanisms underlying neuroprotection in the nigrostriatal system.

Main Methods:

  • Adult rodents were exposed to an enriched environment (EE) or exercise alone.
  • MPTP was administered to induce Parkinsonism.
  • mRNA expression levels of neurotrophic factors and dopamine transporters were analyzed.

Main Results:

  • Exposure to EE or exercise alone conferred complete protection against MPTP-induced Parkinsonism.
  • Neuroprotection was associated with increased glia-derived neurotrophic factors.
  • Decreased expression of dopamine transporter (DAT) and vesicular monoamine transporter (VMAT2) was observed.

Conclusions:

  • Non-pharmacological interventions like EE and exercise can prevent Parkinsonism.
  • Modulation of neurotrophic factors and dopamine transporters plays a role in neuroprotection.
  • This approach holds promise for the prevention and treatment of Parkinson's disease.

More Related Videos

Environmental Modulations of the Number of Midbrain Dopamine Neurons in Adult Mice09:35

Environmental Modulations of the Number of Midbrain Dopamine Neurons in Adult Mice

Published on: January 20, 2015

Gene-environment Interaction Models to Unmask Susceptibility Mechanisms in Parkinson's Disease08:09

Gene-environment Interaction Models to Unmask Susceptibility Mechanisms in Parkinson's Disease

Published on: January 7, 2014

Related Concept Videos

Parkinson Disease ll: Pathophysiology01:24

Parkinson Disease ll: Pathophysiology

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...
Parkinson's Disease: Treatment01:24

Parkinson's Disease: Treatment

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 its...
Neural Regulation01:37

Neural Regulation

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.
Parkinson's Disease: Overview01:15

Parkinson's Disease: Overview

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 to...
Parkinson Disease l: Introduction01:24

Parkinson Disease l: Introduction

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 which...