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Related Concept Videos

Parkinson's Disease: Overview01:15

Parkinson's Disease: Overview

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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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Point and Frameshift Mutations01:30

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Point mutations are genetic alterations involving the change of a single nucleotide base pair in DNA. Depending on how the alteration affects protein synthesis, they can lead to various consequences.Point mutations fall into the following types:Silent mutations occur when a nucleotide change does not alter the amino acid sequence due to the redundancy of the genetic code. For instance, changing ACC to ACA still encodes threonine, leaving the protein function unaffected. This occurs because...
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Parkinson's Disease: Treatment01:24

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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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Mutations01:39

Mutations

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Overview
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Mutations01:35

Mutations

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Mutations are changes in the sequence of DNA. These changes can occur spontaneously or they can be induced by exposure to environmental factors. Mutations can be characterized in a number of different ways: whether and how they alter the amino acid sequence of the protein, whether they occur over a small or large area of DNA, and whether they occur in somatic cells or germline cells.
Chromosomal Alterations Are Large-Scale Mutations
While point mutations are changes in a single nucleotide in...
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Mutations01:39

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Related Experiment Video

Updated: Mar 25, 2026

The Use of Primary Human Fibroblasts for Monitoring Mitochondrial Phenotypes in the Field of Parkinson's Disease
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FBXO7 mutations in Parkinson's disease and multiple system atrophy.

Silvio Conedera1, Hulya Apaydin2, Yuanzhe Li1

  • 1Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan.

Neurobiology of Aging
|February 18, 2016
PubMed
Summary

A rare homozygous mutation in the F-box only protein 7 (FBXO7) gene was identified in a Turkish patient with early-onset Parkinson's disease (PD). This FBXO7 mutation correlated with progressive parkinsonism and cognitive decline.

Keywords:
FBXO7GeneticsMultiple system atrophyParkinson's disease

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Area of Science:

  • Genetics
  • Neuroscience
  • Molecular Biology

Background:

  • Hereditary Parkinson's disease (PD) and multiple system atrophy (MSA) are neurodegenerative disorders.
  • Mutations in the F-box only protein 7 (FBXO7) gene are linked to distinct PD phenotypes.
  • FBXO7 protein is implicated in the formation of α-synuclein inclusions.

Observation:

  • Screened 271 patients (231 PD, 40 MSA) for FBXO7 gene mutations.
  • Identified a homozygous truncating mutation (Arg498Stop) in FBXO7 in a Turkish patient with autosomal recessive inheritance.
  • No pathogenic FBXO7 mutations were found in Japanese or other ethnic groups.

Findings:

  • The Turkish patient presented with early-onset (17 years) progressive parkinsonism and cognitive decline.
  • Genotypic analysis revealed a homozygous Arg498Stop mutation in the FBXO7 gene.
  • The identified FBXO7 mutation, though rare, showed a correlation with clinical manifestations.

Implications:

  • Highlights the role of FBXO7 mutations in specific PD cases, particularly with early onset.
  • Suggests potential ethnic or population-specific differences in the genetic landscape of PD and MSA.
  • Underscores the importance of comprehensive genetic screening in diagnosing rare neurodegenerative conditions.