Beyond Filtration: The Kidney as a Neuro-Inflammatory Regulator under Chronic Stress and Allostatic Load

The kidney is traditionally conceptualized as a homeostatic filtration organ regulating fluid balance, electrolyte composition, and metabolic waste. Recent advances in psychoneuroimmunology and stress physiology, however, indicate that renal tissue is deeply embedded within systemic neuro-endocrine-immune networks. Chronic psychosocial stress, through sustained activation of the hypothalamic–pituitary–adrenal (HPA) axis and sympathetic nervous system, generates a persistent inflammatory milieu that directly alters glomerular permeability, tubular transport, and microvascular integrity. This theoretical study proposes a reconceptualization of the kidney as a central neuro-inflammatory regulator that encodes cumulative stress exposure and allostatic load, rather than merely a passive target of metabolic dysregulation. Using […]