No abstract available
MeSH terms
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Aging / metabolism*
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Aging / physiology
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Animals
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Estrus / drug effects
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Female
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Longevity / drug effects*
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Male
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Melatonin / blood
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Melatonin / metabolism*
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Neoplasms / prevention & control
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Peptides / pharmacology*
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Pineal Gland / metabolism*
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Rats
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Serotonin / metabolism
Substances
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Peptides
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Serotonin
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epithalamin
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Melatonin