基于刘完素火热论的糖尿病肾脏病“热–浊–瘀–毒–络损”病机模型构建及证据边界

Construction and Evidence Boundary of the “Heat-Turbidity-Stasis-Toxin-Collateral Damage” Pathogenesis Model of Diabetic Kidney Disease Based on Liu Wansu’s Theory of Fire-Heat

摘要: 目的：基于刘完素火热论，阐释糖尿病肾脏病(diabetic kidney disease, DKD)由消渴燥热向湿浊、瘀血、浊毒、络损演变的理论依据，构建“热–浊–瘀–毒–络损”病机模型，并明确其临床应用边界。方法：采用叙述性理论研究方法，以《素问玄机原病式》《三消论》等经典文献为理论来源，结合糖尿病肾脏疾病中西医结合诊疗指南、近年证候分布研究、随机对照试验汇总分析、系统评价及现代药理研究，对DKD病机演变、证候分层、治法配置及证据等级进行综合分析。结果：DKD病机不能概括为单一虚损。气阴两虚、脾肾亏虚是其本虚基础，火热、湿浊、瘀血、浊毒等标实因素可在不同阶段参与病情进展，并可能表现为“火热伤津–津亏生浊–热瘀互结–瘀毒损络–气化失司”的动态链条。现有证候研究和指南意见支持DKD多呈本虚标实、虚实夹杂，但尚不足以证明证候与现代分期之间存在固定对应。临床研究提示中医药联合西医常规治疗在降低蛋白尿、改善部分肾功能指标及中医证候积分方面具有潜在优势，但证据质量、干预异质性和长期结局不足限制了结论强度。结论：从刘完素火热论阐释DKD的价值，在于提示辨治不宜偏于单纯补虚，而应根据证候与肾脏指标动态调整清热、化浊、活血、解毒、通络与益气养阴、培补脾肾的权重。该模型目前主要具有理论整合和临床辨治启发意义，仍需通过证候分层、多中心随机对照研究和长期随访结局加以验证。

Abstract: Objective: To reinterpret the dynamic role of excess pathogenic factors in diabetic kidney disease (DKD) based on Liu Wansu’s theory of fire-heat, to construct a pathogenesis model of “heat-turbidity-stasis-toxin-collateral damage”, and to clarify the boundary of its clinical application. Methods: This narrative theoretical study took classical medical texts such as Suwen Xuanji Yuanbingshi and Sanxiao Lun as theoretical sources, and comprehensively analyzed the pathogenesis evolution, syndrome stratification, treatment configuration and evidence level of DKD by integrating recent integrated Chinese and Western medicine guidelines, studies on TCM syndrome distribution, pooled analyses of randomized controlled trials, systematic reviews and experimental pharmacological studies. Results: DKD should not be interpreted as a purely deficiency-related disorder. Qi-yin deficiency and spleen-kidney deficiency constitute the root, while fire-heat, damp turbidity, blood stasis and turbid toxin may participate in disease progression at different stages. The proposed model can be summarized as “fire-heat damaging fluids, fluid depletion generating turbidity, heat and stasis binding together, stasis-toxin damaging collaterals, and failure of qi transformation”. Current syndrome studies and guidelines support the view of root deficiency with branch excess, but are insufficient to establish a fixed one-to-one correspondence between TCM syndromes and modern DKD stages. Clinical evidence suggests that TCM combined with conventional Western medicine may have potential benefits in reducing proteinuria and improving some renal function indices, but methodological limitations and insufficient long-term outcomes restrict the strength of conclusions. Conclusion: The value of interpreting DKD through Liu Wansu’s theory of fire-heat lies in suggesting that syndrome differentiation and treatment should not lean toward exclusive tonification, but should dynamically adjust the emphasis of heat-clearing, turbidity-resolving, blood-activating, detoxifying and collateral-unblocking methods together with qi-yin nourishment and spleen-kidney reinforcement according to syndrome manifestations and renal indices. This model currently mainly serves theoretical integration and clinical heuristic purposes, and still needs to be verified through syndrome stratification, multicenter randomized controlled trials and long-term follow-up outcomes.