Related Experiment Video
Updated: May 21, 2026

06:07
Histological Examination of Mitochondrial Morphology in a Parkinson's Disease Model
Published on: June 23, 2023
αSynuclein and Mitochondrial Dysfunction: A Pathogenic Partnership in Parkinson's Disease?
David Protter1, Charmaine Lang, Antony A Cooper
1Diabetes and Obesity Program, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia.
Parkinson'S Disease
|June 28, 2012
Summary
Parkinson's disease involves alpha-synuclein protein and mitochondrial dysfunction. These factors interact, potentially driving neurodegeneration and disease progression, though a cure remains elusive.
Area of Science:
- Neurodegenerative diseases
- Molecular mechanisms of disease
- Cellular biology
Background:
- Parkinson's disease (PD) is a progressive neurodegenerative disorder with no cure.
- Alpha-synuclein protein is implicated in PD pathogenesis, but its targets and toxicity mechanisms are unknown.
- Mitochondrial dysfunction is frequently observed in PD patients.
Purpose of the Study:
- To explore the potential inter-relationship between alpha-synuclein and mitochondrial dysfunction in PD.
- To investigate how these two factors may interact to drive disease pathology.
- To review potential molecular mechanisms underlying this interaction.
Main Methods:
- Literature review of existing research on alpha-synuclein, mitochondrial dysfunction, and PD.
- Analysis of proposed molecular pathways linking alpha-synuclein toxicity and mitochondrial impairment.
- Synthesis of evidence supporting a synergistic relationship between these factors.
Main Results:
- Alpha-synuclein and mitochondrial dysfunction likely interact synergistically in PD pathogenesis.
- This interaction can create amplifying cycles of toxicity and dysfunction.
- Either factor could initiate the disease, but both contribute to progression.
Conclusions:
- The interplay between alpha-synuclein and mitochondrial dysfunction is a critical factor in Parkinson's disease.
- Understanding these interactions is key to developing effective therapies.
- Potential mechanisms include impaired autophagy, altered mitochondrial dynamics, oxidative stress, and ER stress.
Related Concept Videos
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 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...
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...
ATP Synthase: Mechanism
In animals, the mitochondrial F1F0 ATP synthase is the key protein that synthesizes ATP molecules through a complex catalytic mechanism. While the nuclear genome encodes the majority of ATP synthase subunits, the mitochondrial genome encodes some of the enzyme's most critical components. The formation of this multi-subunit enzyme is a complex multi-step process regulated at the level of transcription, translation, and assembly. Defects in one or more of these steps can result in decreased ATP...
Lysosomal Hydrolases
Lysosomes are the site for the degradation of macromolecules and biological polymers released during membrane trafficking events such as secretory, endocytic, autophagic, and phagocytic pathways. The membrane-enclosed area of the lysosome, called the lumen, contains hydrolytic enzymes active in an acidic environment. These acid hydrolases are functional at a pH between 4.5 and 5 and are involved in cellular processes such as cell signaling, energy metabolism, restoration of the plasma membrane,...
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.

