舌苔是由脾胃之气上熏,胃津上潮,凝聚于舌面而生。舌苔是散布于舌背的一层苔垢,由舌背脱落细胞、唾液、细菌、食物碎屑以及渗出的白细胞等填充于丝状乳头角化树的间隙内组成。舌背微生态变化是影响舌苔形成与变化的重要因素,研究舌背微生态的组成与变化规律对于阐明舌苔形成机制具有重要价值。本文就近年来舌背微生态的研究方法及与疾病的相关性进行综述,以期为研究舌背微生态变化、舌苔形成与中医证型的相关性提供依据,为中医药学的现代化研究提供新的思路和方法。
Tongue coating is made by the upwarding of spleen and stomach Qi as well as upwelling of gastric fluid,condensing on the surface of the tongue. Tongue coating,a layer of fur-like substance covering the surface of the tongue dorsum formed by castoff cells on the tongue dorsum,saliva,bacteria,food scraps and the white blood cells,has been filled up in the interstices of cornification tree of the filiform papillae. The change of the micro-ecological of the tongue dorsum is an important factor to affect the formation and change of the tongue coating and the study on the composition and the change rule of the micro-ecological of the tongue dorsum has important value in clarifying the formation mechanism of the tongue coating. This paper reviewed the base of two factors: one is the research methods of the micro-ecological of the tongue dorsum in recent years and the other one is the correlation between the research methods of the micro-ecological of the tongue dorsum and diseases in recent years. We hope to provide a basis for researching the change of the micro-ecological of the tongue dorsum and the correlation between the formation of the tongue coating and symptom-complex of traditional Chinese medicine as well as hope to provide new ideas and methods for the modern research of traditional Chinese medicine.