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<p>Recent work leveraging omics and imaging data now enables the estimation of aging at the level of individual organs. Emerging findings suggest that organs age at different rates, which may be linked to environmental exposures and genetic factors. However, premature aging in one organ may also drive aging in connected organs within multi-organ aging networks. Here, we outline methods for measuring organ-specific biological age and discuss insights derived from recent progress in multi-organ aging research. We put forward recommendations, best practices and research priorities, including the importance of longitudinal tracking, biomarkers with high organ specificity and reference ranges for organ age gaps. We envision routine organ-specific biological age assessments as tools for developing personalized organ aging maps and tracking organ aging across the life course, thereby facilitating early, targeted interventions to delay organ-specific decline and interorgan consequences.</p>

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From whole-body to organ-specific biological age clocks

  • 期刊论文

  • 发表日期：

    2026年5月20日

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  • Andrew Zalesky,
  • Junhao Wen,
  • Ye Ella Tian

摘要

Recent work leveraging omics and imaging data now enables the estimation of aging at the level of individual organs. Emerging findings suggest that organs age at different rates, which may be linked to environmental exposures and genetic factors. However, premature aging in one organ may also drive aging in connected organs within multi-organ aging networks. Here, we outline methods for measuring organ-specific biological age and discuss insights derived from recent progress in multi-organ aging research. We put forward recommendations, best practices and research priorities, including the importance of longitudinal tracking, biomarkers with high organ specificity and reference ranges for organ age gaps. We envision routine organ-specific biological age assessments as tools for developing personalized organ aging maps and tracking organ aging across the life course, thereby facilitating early, targeted interventions to delay organ-specific decline and interorgan consequences.