Spermidine is a naturally occurring polyamine that has gained attention in recent years due to its potential role in promoting longevity, slowing aging, and improving overall health. While more research is needed to establish definitive conclusions, several studies have highlighted the potential benefits of spermidine. Here are some key findings from scientific research:

  1. Autophagy: Spermidine has been found to induce autophagy, a cellular process that involves the breakdown and recycling of damaged cellular components (Eisenberg et al., 2009). Autophagy is important for cellular health, as it helps to remove dysfunctional proteins and organelles, which can otherwise accumulate and cause cellular damage. Enhanced autophagy has been linked to increased lifespan and improved health in various model organisms (Madeo et al., 2018).
  2. Cardiovascular health: A study published in the American Journal of Clinical Nutrition found that higher spermidine intake was associated with a reduced risk of cardiovascular disease and all-cause mortality in humans (Kiechl et al., 2018). This could be partly due to spermidine’s role in promoting autophagy, which is known to have cardioprotective effects.
  3. Neuroprotection: Spermidine has been shown to have neuroprotective properties in various experimental models, potentially reducing the risk of age-related neurodegenerative diseases like Alzheimer’s and Parkinson’s (Sigrist et al., 2014). This may be due to its role in enhancing autophagy, which helps to clear toxic protein aggregates that contribute to these diseases.
  4. Cellular stress resistance: Spermidine has been found to increase resistance to oxidative stress in various model organisms, which could contribute to its longevity-promoting effects (Minois et al., 2011). Oxidative stress is associated with aging and various age-related diseases, so improving cellular stress resistance could have a positive impact on overall health and longevity.
  5. Anti-inflammatory effects: Spermidine has been shown to have anti-inflammatory properties, which could contribute to its health-promoting effects (LaRocca et al., 2013). Chronic inflammation has been linked to many age-related diseases and conditions, so reducing inflammation could potentially improve overall health and slow aging.

In summary, spermidine has been associated with several potential health benefits, including promoting autophagy, improving cardiovascular health, offering neuroprotection, increasing cellular stress resistance, and exerting anti-inflammatory effects. However, it is essential to note that most of these studies have been conducted in vitro or in animal models. More research, including well-designed human trials, is needed to establish the optimal dosage, safety, and efficacy of spermidine supplementation for promoting longevity and health in humans.

Laboratoire Longévité - Genève

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