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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 its...

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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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Related Experiment Video

Updated: May 21, 2026

Identification of Disease-related Spatial Covariance Patterns using Neuroimaging Data

Identification of Disease-related Spatial Covariance Patterns using Neuroimaging Data

Published on: June 26, 2013

Fe and Cu do not differ in Parkinson's disease: a replication study plus meta-analysis.

Stefania Mariani¹, Mariacarla Ventriglia, Ilaria Simonelli

¹Department of Neurology, Campus Bio-Medico University, Rome, Italy. s.mariani@unicampus.it

Neurobiology of Aging

|June 29, 2012

Summary

This study found no significant differences in iron or copper levels between Parkinson's disease patients and healthy individuals. Sex differences may explain some observed variations in serum copper in previous research.

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Last Updated: May 21, 2026

Identification of Disease-related Spatial Covariance Patterns using Neuroimaging Data

Identification of Disease-related Spatial Covariance Patterns using Neuroimaging Data

Published on: June 26, 2013

Area of Science:

Neuroscience
Biochemistry
Medical Research

Background:

Parkinson's disease (PD) is a neurodegenerative disorder.
Altered metal ion homeostasis, particularly iron and copper, is hypothesized in PD pathogenesis.
Previous studies have yielded conflicting results regarding serum, plasma, and cerebrospinal fluid metal levels in PD.

Purpose of the Study:

To comprehensively evaluate serum, plasma, and cerebrospinal fluid iron and copper levels in Parkinson's disease.
To conduct a meta-analysis of existing literature and perform a replication study.

Main Methods:

Meta-analysis of 33 studies published between 1987 and 2011.
Replication study analyzing serum metal levels in Parkinson's disease patients and controls.

Main Results:

The replication study found no significant differences in serum, plasma, or cerebrospinal fluid metal levels between PD patients and healthy controls.
Meta-regression indicated that differences in serum copper levels observed in some studies may be attributed to varying percentages of women in the study samples.
Increased transferrin and transferrin saturation levels were noted in PD subjects.

Conclusions:

Serum, plasma, and cerebrospinal fluid iron and copper levels do not appear to be significantly disarranged in Parkinson's disease.
Future research should investigate iron metabolism through iron master proteins and consider sex as a factor in metal level variations.
The role of transferrin in Parkinson's disease warrants further investigation.