[Thermodynamic outlook and practice of Chinese medicinal nature].

Medicinal nature theory of Chinese medicine is the difficult and hot issue in the basic research of Chinese medicine (CM), but has not yet obtained some important breakthrough until now. The cold and heat syndromes is considered as the capital differentiation of CM in clinic; cold and hot is the primary medicinal nature of CM. Treating the cold with heat, the heat with cold is the main therapeutic principle of CM. But, whether the cold and hot of medicinal nature objectively exists? Whether/how to establish a set of objectives and feasible appraisal methodologies? How to apply the theoratical and research findings of medicinal nature in clinical practice? In recent years, a new road for ourselves to carry out a series of explorations and researches on the cold and hot nature of CM from the thermodynamic view has been opened, and the doctrine of "Thermodynamic outlook of Chinese medicinal nature" has been proposed firstly by our research group. Consequently, we have established the research model, "coming from clinic, verifying in experiment and returning to the clinic", on the medicinal nature of CM, and developed a set of appraisal methodologies of the cold and hot nature of Chinese medicine based on biothermokinetics, such as the cold/hot plate differentiating system, microcalorimetry, evidence-based medical analysis for medicinal nature of CM. Based on these methods, a systematical investigation has been done focusing the energy transfer and thermal change in the metabolism progress of organism and the intervention effects of different Chinese medicines on this progress from the experiment to the clinic, in vitro and in vivo. Our studies have essentially elucidated the objectivity of the differences between the cold and hot nature of Chinese medicine as well as the scientific connotation of "treating the cold with heat, the heat with cold", provided a novel and perspective approach for investigating the medicinal nature theory of Chinese medicine, further supplied some new technological supports for the modernization of CM.