Chinese Scholars Establish a New “Windmill-Regulation” Framework for Ion Channels, Offering Fresh Insights into Anesthetic Mechanism Research

Anesthesia is widely applied in clinical medicine with well-established safety profiles. Nevertheless, the unified underlying mechanism of anesthetic action remains an unresolved fundamental scientific question in life sciences. Local anesthesia, general anesthesia and deep sedation produce markedly distinct physiological effects, yet the field has long lacked a self-consistent and comprehensive interpretive system. Recently, Chinese scholar Sun Zuodong, drawing on classical experimental data of neural and cardiac membrane potentials and building upon his original origami-windmill model of ion channels and relevant theoretical hypotheses, has constructed an innovative logical framework for ion regulation. It delivers a brand-new academic perspective for analyzing anesthetic differences, the rules governing cellular electrical activity, and the boundary mechanisms of life.

Traditional physiological explanations for anesthetic mechanisms mainly rely on fragmented theories such as sodium-channel block, lipid-solubility effects and receptor inhibition. These conventional doctrines can only account for isolated local phenomena and fail to answer several core scientific questions: Why can anesthetic drugs with entirely different chemical structures all produce analgesia, sedation and suppression of consciousness? Why do patients remain conscious yet insensitive to pain under regional anesthesia, whereas general anesthesia induces unconsciousness and memory blockade? What lies at the electrochemical boundary between routine clinical anesthesia, deep physiological suppression and the terminal state of life? For years, conventional research has been deprived of unified, quantifiable and systematic underlying logic.

Rooted in Sun Zuodong’s origami-windmill model of ion channels and associated theoretical assumptions, the present study re-interprets the essence of electrical activity in human excitable cells, grounded in the actual diameters of four key ions (sodium, calcium, potassium and chloride), their transmembrane transport patterns and dynamic shifts in membrane potential. According to the research, the physiological working status of neurons and cardiomyocytes hinges on the rotation rhythm, rotational speed and ion-ratio balance of the “windmill-like rotation” of cell-membrane ion channels. The dynamic operating modes of channels directly correspond to diverse physiological states including cellular excitation, resting potential, functional inhibition and activity arrest.

Built on this new theoretical framework, the study clearly identifies ion-regulation disparities among three clinical physiological states. Local anesthetic agents primarily act on peripheral nerve tissues: they restrict normal transmembrane sodium-ion transport, transiently lock the operational state of ion channels and block the transmission of somatic pain signals to the central nervous system, without interfering with basic central metabolic functions. This yields the clinically observed effect of pain-free awareness with full reversibility.

General anesthetic drugs target the central neural network in the brain. They disrupt the coordinated rotation rhythm of multiple ions and interrupt electrical-signal integration and information transmission within the cerebral cortex, consequently triggering manifestations such as suppressed consciousness, systemic analgesia and temporary memory blockade. Meanwhile, cardiac ion channels preserve their basal rotation rhythm under this state to sustain stable blood circulation — which constitutes the core reason for the safety and controllability of general anesthesia in clinical operations.

From the perspective of ionic homeostasis, the study also clarifies the electrochemical distinction between deep physiological suppression and the terminal state of life. Excessively high potassium-ion intervention overburdens the rotation of cardiac ion channels and traps membrane potential persistently in the repolarized state, resulting in electrical-activity arrest described as “charging without discharging”. This completely terminates cardiac electrophysiological activity, and fundamentally differentiates routine anesthesia from life termination at the ion-regulation level.

Moreover, this theoretical hypothesis can be extended to cell-proliferation research. It explains the internal logic behind sustained homeostatic proliferation of special cells via the regulatory mechanism of potassium-chloride ion ratios, opening new avenues for investigations into the tumor microenvironment and cellular homeostasis.

At present, this achievement is a basic-theoretical model deduction and academic hypothesis that awaits extensive experimental data for verification and refinement. According to academic peers, this novel ion-channel regulatory framework features coherent logic and innovative interpretive dimensions, and is compatible with multiple classic physiological observations. It serves as highly valuable new theoretical reference for subsequent exploration of anesthetic pharmacology, electrocardiographic rhythm modulation, neural-mechanism research and the development of new medical drugs. (By Ai Li)