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An Experimental Paradigm for Measuring the Effects of Ageing on Sentence Processing
Published on: October 25, 2019
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Oxygen radical detoxification processes during aging: the functional importance of melatonin
1Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio 78284-7762, USA.
Aging (Milan, Italy)
|October 1, 1995
Summary
Melatonin, a potent antioxidant, declines with aging. This decline may contribute to aging and age-related diseases, suggesting melatonin
Area of Science:
- Aging research
- Biochemistry
- Cellular biology
Background:
- Free radical damage to macromolecules is implicated in aging and age-related diseases.
- Melatonin, a hormone produced during darkness, declines significantly with age in mammals.
- Melatonin is a potent antioxidant and free radical scavenger.
Purpose of the Study:
- To investigate the role of melatonin as an antioxidant in the context of aging.
- To explore the potential of melatonin as an anti-aging factor.
Main Methods:
- In vitro studies assessing melatonin's free radical scavenging efficiency.
- In vivo studies evaluating melatonin's protective effects against free radical-induced damage in rats.
- Assessment of melatonin's antioxidant activity in cellular compartments.
Main Results:
- Melatonin directly scavenges hydroxyl and peroxyl radicals more efficiently than other antioxidants.
- Melatonin potentiates the activity of other antioxidants.
- Melatonin protects against DNA damage, lipid peroxidation, and radiation-induced genomic damage.
- Melatonin prevents chemically induced cataracts.
Conclusions:
- Melatonin functions as an antioxidant in various cellular locations.
- The age-related decline in melatonin may accelerate aging and the onset of age-related diseases.
- Further research into melatonin as an anti-aging intervention is warranted.
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