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Age-related pharmacokinetic changes are extensively documented, but understanding age-related pharmacodynamic alterations is relatively limited. This knowledge gap can be partly attributed to the complexity of developing appropriate measures of drug responses compared to bioanalytical methods for determining drug concentrations.Most information regarding age-related differences in human pharmacodynamics originates from cross-sectional studies. However, these studies assume that observed mean...
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Metformin decelerates aging clock in male monkeys.

Yuanhan Yang1, Xiaoyong Lu2, Ning Liu3

  • 1Key Laboratory of Organ Regeneration and Reconstruction, State Key Laboratory of Membrane Biology, State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China.

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This summary is machine-generated.

Metformin demonstrated geroprotective effects in a primate aging study, significantly slowing biological aging indicators. This research shows metformin

Keywords:
agingaging clockmetforminprimatesenescence

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Area of Science:

  • Gerontology and primate aging research.
  • Neuroscience and neuroprotection.
  • Pharmacology and drug development.

Background:

  • Aging research in non-human primates is limited.
  • Metformin's potential geroprotective effects require further investigation in primate models.
  • Understanding metformin's impact on age-related phenotypes is crucial for human aging interventions.

Purpose of the Study:

  • To evaluate the geroprotective effects of metformin in adult male cynomolgus monkeys over 40 months.
  • To investigate metformin's influence on organismal aging using a multi-omics approach.
  • To assess metformin's neuroprotective impact and its underlying mechanisms.

Main Methods:

  • Longitudinal study involving physiological, imaging, histological, and molecular evaluations.
  • Application of pan-tissue transcriptomics, DNA methylomics, plasma proteomics, and metabolomics.
  • Development and utilization of novel primate aging clocks to measure metformin's effects.

Main Results:

  • Metformin significantly slowed multiple age-related phenotypes at the organismal level.
  • A notable regression of approximately 6 years in brain aging was observed.
  • Metformin demonstrated neuroprotective effects, preserving brain structure and enhancing cognitive function.
  • Geroprotective effects in neurons were partly mediated by Nrf2 activation.

Conclusions:

  • Metformin systematically reduces multi-dimensional biological age in primates.
  • The study provides evidence for metformin's neuroprotective and geroprotective capabilities in a primate model.
  • This research paves the way for pharmaceutical strategies targeting human aging.