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Melatonin Lulling Th17 Cells to Sleep
1IMR Pathway Biology, Merck Research Laboratory, 901 California Avenue, Palo Alto, CA 94304, USA.
Cell
|September 12, 2015
Summary
The circadian hormone melatonin, influenced by seasonal light changes, promotes an anti-inflammatory immune state. This finding may explain why multiple sclerosis activity fluctuates throughout the year.
Area of Science:
- Immunology
- Endocrinology
- Neuroscience
Background:
- Seasonal variations in disease activity are observed in multiple sclerosis.
- The hormone melatonin exhibits seasonal fluctuations in levels, correlating with changes in night length.
Purpose of the Study:
- To investigate the immunomodulatory effects of melatonin.
- To explore the potential role of melatonin in seasonal multiple sclerosis activity.
Main Methods:
- The study by Farez et al. examined the influence of melatonin on immune responses.
Main Results:
- Melatonin shifts the immune response towards an anti-inflammatory profile.
- This shift may account for the seasonal variability in multiple sclerosis disease activity.
Conclusions:
- Melatonin's anti-inflammatory properties offer a potential explanation for seasonal patterns in multiple sclerosis.
- Further research into melatonin as a therapeutic agent for multiple sclerosis is warranted.
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