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Nutrition et vieillissement

Sirtuin

Sirtuins are proteins that regulate cellular aging and longevity.

Definition

Family of regulatory proteins involved in metabolism, longevity, and cellular stress resistance. Sirtuins are activated particularly by fasting and physical exercise.

How it works

Sirtuins (SIRT1 to SIRT7) are enzymes that modify other proteins in response to cellular energy changes. They play a crucial role in DNA repair, autophagy, and oxidative stress management. Sirtuin activation is associated with improved longevity and reduced age-related diseases. Sirtuin levels naturally decrease with age, making it interesting to stimulate them through nutritional and lifestyle approaches.

Role

Sirtuins regulate cellular aging processes and activate survival and repair mechanisms within the organism.

Examples

  • SIRT1 in metabolic management
  • SIRT3 in mitochondrial function
  • SIRT6 in DNA repair

Recommendations

Practice intermittent fasting to stimulate sirtuins. Consume polyphenol-rich foods like red grapes, blueberries, and green tea. Combine a balanced diet with regular physical activity.

Key takeaway

Activating sirtuins through fasting, exercise, and tailored nutrition slows down cellular aging.

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