Drugs that increase lifespan
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Cardiometabolic Drugs and Lifespan Extension
Several cardiometabolic drugs have shown potential to increase lifespan in animal studies. Metformin, acarbose, and aspirin are among the most studied, with aspirin and acarbose showing the most consistent benefits in animal models. Metformin has produced mixed results, but both metformin and omega-3 fatty acids have shown promise in improving healthspan in clinical trials. Atorvastatin is also being investigated for its potential to target aging in ongoing clinical studies Barinda2024Garay2021.
Metformin: Controversial but Promising
Metformin, widely used for type 2 diabetes, has been linked to reduced early mortality from diseases like diabetes, cardiovascular disease, cognitive decline, and cancer, thereby improving healthspan. However, evidence for its direct effect on lifespan extension in healthy individuals remains controversial. Its benefits are thought to be mainly indirect, through improved cellular metabolism, insulin sensitivity, and reduced oxidative stress . Ongoing clinical trials, such as MILES and TAME, are further investigating its anti-aging potential Barinda2024Mohammed2021Garay2021.
Rapamycin and Related Interventions
Rapamycin, an mTOR inhibitor, has consistently extended lifespan in rodents and improved healthspan, even with short-term treatment in middle-aged mice. It also influences the microbiome and cancer prevalence. Rapamycin’s effects may partly be due to changes in tissue inflammation, particularly in adipose tissue Bitto2016Mau2019. Clinical trials are underway to assess its effects on aging in humans .
Drug Combinations and Synergy
Combining drugs that target different aging pathways can produce additive or even synergistic effects on lifespan. For example, a combination of trametinib (MEK inhibitor), rapamycin (mTOR inhibitor), and lithium (GSK-3 inhibitor) increased lifespan by up to 48% in fruit flies. These combinations work by affecting nutrient-sensing and lipid metabolism pathways, such as IGF and SREBP signaling Admasu2018Castillo-Quan2019. Targeting multiple pathways may be the most effective strategy for maximizing longevity benefits.
Other Drugs with Lifespan Benefits
- Acarbose: An antidiabetic drug, acarbose has shown lifespan extension in animal studies and is being tested in clinical trials for aging Barinda2024Garay2021.
- Ibuprofen: This common NSAID has extended lifespan in yeast, worms, and flies, possibly by inhibiting tryptophan import and affecting cell cycle progression .
- SGLT2 Inhibitors (e.g., Canagliflozin): Canagliflozin increased lifespan in male mice, especially when started in mid-life, but showed sex-specific effects, sometimes reducing lifespan in females .
- Estradiol and Naproxen: Retrospective studies in humans have associated estradiol and naproxen with increased lifespan, though more research is needed .
- Omega-3 Fatty Acids: These are being studied for their potential to improve healthspan and possibly lifespan in clinical trials .
Sex-Specific and Individualized Effects
Some drugs, such as canagliflozin and estradiol, show sex-specific effects on lifespan, highlighting the importance of personalized approaches in longevity research Miller2024Morin2024.
Conclusion
A growing number of drugs—including metformin, rapamycin, acarbose, aspirin, ibuprofen, canagliflozin, atorvastatin, omega-3 fatty acids, and others—have shown potential to increase lifespan or healthspan in animal models and, in some cases, in humans. Drug combinations that target multiple aging pathways may offer the greatest benefits. However, results can vary by sex and individual, and more large-scale, randomized clinical trials are needed to confirm these effects in humans.
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