Biological self-repair refers to the inherent and continuous processes within an organism that detect, correct, and mitigate cellular or tissue damage resulting from normal metabolic activity and external stressors. This essential function encompasses mechanisms ranging from DNA damage repair at the molecular level to tissue regeneration at the macroscopic level. Maintaining robust self-repair capacity is a cornerstone of longevity and is closely modulated by systemic hormonal signals.
Origin
The concept of ‘self-repair’ is fundamental to biology, stemming from the observation that living systems possess intrinsic mechanisms to counter entropy and maintain structural integrity. The term integrates classical concepts of wound healing and tissue turnover with modern molecular biology, including autophagy and protein quality control. Clinical practice seeks to optimize this innate biological resilience to support sustained health and functional capacity.
Mechanism
Key pathways involved include the activation of specific signaling cascades, such as the mTOR and AMPK pathways, which regulate cellular growth, senescence, and recycling processes. Hormones like Growth Hormone and DHEA play trophic roles, stimulating cellular proliferation and extracellular matrix synthesis necessary for tissue renewal. Effective self-repair relies on accurate damage surveillance and the timely recruitment of stem cells or progenitor cells to the site of injury or degradation.
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