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What are MicroRNAs and their roles in aging?

MicroRNAs (miRNAs) are small, non-coding RNA molecules that regulate gene expression, and recent studies show they are integral to the aging process. As we age, changes in miRNA profiles can accelerate cellular senescence and influence longevity across various organisms. This article provides a comprehensive overview of what are MicroRNAs and their roles in aging, exploring their function and potential as biomarkers.