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Measurement of Protein Turnover Rates in Senescent and Non-Dividing Cultured Cells with Metabolic Labeling and Mass Spectrometry
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Selenoproteins and the aging brain.
Shu Zhang1, Caroline Rocourt, Wen-Hsing Cheng
1Department of Nutrition and Food Science, University of Maryland, 0112 Skinner Building, College Park, MD 20742, USA.
Mechanisms of Ageing and Development
|March 12, 2010
Summary
Selenium (Se) is an essential trace mineral that supports brain health through selenoproteins. These proteins protect against neurodegeneration in disorders like Alzheimer's and Parkinson's disease.
Area of Science:
- Biochemistry
- Neuroscience
- Trace Mineral Metabolism
Background:
- Selenium (Se) is an essential trace mineral crucial for biological functions.
- Selenoproteins, mediated by selenium, play a key role in maintaining brain function through redox regulation.
- Reduced expression of selenoproteins is linked to neurodegenerative diseases such as Parkinson's, Alzheimer's, and epilepsy.
Purpose of the Study:
- To investigate the neuroprotective roles of selenoproteins in age-associated neurodisorders.
- To explore the potential of targeting selenoproteins for therapeutic interventions in neurodegeneration.
Main Methods:
- Utilized genetically manipulated mouse models to study selenoprotein function.
- Examined the impact of selenoproteins on neurodegeneration via redox regulation mechanisms.
Main Results:
- Genetically modified mouse models demonstrated that selenoproteins protect against neurodegeneration.
- Redox regulation by selenoproteins is a primary mechanism for neuroprotection.
- Decreased selenoprotein expression correlates with the pathology of neurodegenerative conditions.
Conclusions:
- Selenoproteins are vital for maintaining brain health and preventing neurodegeneration.
- Targeting selenoproteins involved in redox regulation offers a promising therapeutic strategy for neurodevelopmental disorders.
- Future gene therapies targeting selenoproteins may delay disease onset or even rescue affected patients.
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