Spleen and Kidney function

"Spleen and Kidney function" refers to the physiological activities and pathological states of the spleen and kidneys, rather than a discrete molecular target such as a receptor, enzyme, or transporter. In biological terms, the spleen serves as a secondary lymphoid organ involved in blood filtration, iron recycling, and immune surveillance (StatPearls, Physiology, Spleen, 2023). The kidneys are essential for maintaining homeostasis by regulating fluid balance, blood pressure, and the excretion of metabolic waste products (NIDDK, "Your Kidneys & How They Work"). While many therapeutic agents target specific molecules within these organs—such as diuretics targeting renal ion channels—the term "function" itself describes a broad physiological outcome. In Traditional Chinese Medicine (TCM), the "Spleen-Kidney" axis represents a functional system governing metabolism and vitality, often used to diagnose syndromes like Spleen-Kidney Yang deficiency (PMC6461427, 2019). Because the term describes organ-level systems rather than a specific protein or gene, it is not considered a valid molecular target for modern drug discovery. Consequently, it lacks a specific mechanism of action or dedicated drug-target interactions commonly used in pharmacological profiling.

Other names

Spleen-Kidney axisRenal and splenic physiologySpleen-Kidney Yang

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