The term yin excess originated in the Huang Di Nei Jing, which refers to the phenomenon of "heavy yin" when wind pathogens invades the human body and defensive qi enters the yin part of the human body. Later doctors have played a role in yin excess. Theoretically, yin and yang are out of balance in the human body, and yin is too much and yang is not enough, which is the process of physiological transformation to pathology; from the diagnosis point of view, patients with yin deficiency have less pulse and more blood; from the clinical manifestations, patients with yin excess appear cold from the back, hands and feet cold reverse; from the point of view of treatment, bitter cold products can cause yin excess. Modern research specifies yin as phlegm, dampness, stasis and other pathological products, and emphasize the relation between yin excess and yang deficiency. Yin excess includes pathological factors such as phlegm stasis cold, external cold straight in the liver wood, set in the hypochasm, resulting in mass; or overthinking and cold drink injury spleen, phlegm turbidiousness, long and hard phlegm forming lumps, thus resulting yin excess; or it may deplete the yang energy of the heart, leading to neglect of the warming function and stagnation of blood stasis; or if the kidney yang is deficient and the body lacks warmth, and there is no true yang in the ridge, then the wood will sink and congest blood stasis; the above etiology and pathogenesis lead to the occupation of yin pathogens, resulting in liver cancer. The treatment methods include liver cold turbidizing, warming liver and dispelling cold, with Wuzhuyu Decoction; spleen-deficiency phlegm production, the treatment should be warm the middle and resolving the phlegm, with Linggui Zhugan Decoction and Zhenwu Decoction; Yang deficiency and stasis, the treatment should warm kidney to remove blood stasis, with Poyu Decoction.

[Objective]To enrich the modern scientific connotation of the theory"spleen being in charge of the defensive function"in traditional Chinese medicine,and provide ideas for experimental research and clinical treatment of ulcerative colitis(UC).[Methods]Starting from the congruency between the therapeutic principle and method for UC in traditional Chinese medicine and the theory"spleen being in charge of the defensive function",and taking into account the fact that various components of Huangya Decoction were scientifically proven to effectively alleviate UC symptoms,this article discussed the potential mechanism of classic formula of Huangya Decoction in treating UC via"strengthening the spleen and enriching Qi"by explaining the theoretical connotation and immunological extension of"spleen being in charge of the defensive function",and combining with modern pharmacological research.[Results]Although studies on the treatment of UC by Huangya Decoction are still lacking,Huangya Decoction is feasible to treat UC by strengthening the spleen and enriching Qi based on the theory"spleen being in charge of the defensive function"in traditional Chinese medicine.The potential mechanisms include regulating immune cells,protecting intestinal epithelial barrier function,regulating intestinal flora,inhibiting or alleviating inflammatory response and regulating autophagy pathway expression.[Conclusion]The theoretical connotation of"spleen being in charge of the defensive function"in traditional Chinese medicine exhibits homologous physiological effects with the immune function in modern medicine,resulting from the synergistic action of multiple organs such as the spleen and gastrointestinal tract.The application of Huangya Decoction,a classic formula of strengthening the spleen and enriching Qi,for the treatment of UC through multi-target and multi-link approaches is not only feasible but also provides new insights for UC therapy.It lays a foundation for the systematic research,development and utilization of basic theories in traditional Chinese medicine and classic formulas.

[Objective]To investigate the therapeutic effect of Jian'gan Xiaozhi Decoction(JGXZ)on non-alcoholic fatty liver disease(NAFLD)model mice and explore its mechanism from the perspective of mitochondrial autophagy mediated by the PTEN induced putative kinase 1(PINK1)/E3 uniquitin-protein ligase(Parkin)signaling pathway.[Methods]Sixty C57BL/6J mice were randomly and equally divided into 6 groups:control,model(NAFLD),polyene phosphatidyl choline(PPC)group 180 mg/kg intragastric administration,and JGXZ low,medium and high dose groups(8,16,32 g/kg)intragastric administration.Except for control group,the other 5 groups were given a high fat diet.The treatment lasted for 8 weeks,and the body weight of the mice was recorded weekly.After 8 weeks,blood samples were collected,the levels of serum alanine aminotransferase(ALT)and aspartate aminotransferase(AST)were measured,liver tissue was weighted and fixed,and histological changes in liver tissue were observed by hematoxylin-eosin(HE)and oil red O staining.The levels of total cholesterol(TC),triglyceride(TG),interleukin-1 β(IL-1 β),IL-6,tumor necrosis factor-α(TNF-α),malondialdehyde(MDA)and activities of glutathione peroxidase(GSH-Px),superoxide dismutase(SOD)in liver tissue were measured to evaluate the effects of JGXZ on inflammation and oxidative stress in NAFLD mice.Western blot was used to detect the protein expression levels of voltage-dependent anion channel 1(VDAC1),translocase of outer mitochondrial membrane 20(TOM20),cytochrome c oxidase subunit Ⅳ(COX Ⅳ),phosphatase and PINK1,Parkin,Beclin1,microtubule-associated protein light chain 3(LC3),and P62 to evaluate the effects of JGXZ on mitochondrial autophagy in NAFLD mice.[Result]Compared with model group,JGXZ intervention significantly improved the body weight of NAFLD model mice,reduced liver index,alleviated liver tissue lesions in NAFLD model mice,reduced TC,TG,ALT,AST levels,decreased IL-1[3,IL-6,TNF-α and MDA levels,increased GSH-Px and SOD activity,down-regulated VDAC1,TOM20,COXⅣ and P62 protein expression,and up-regulated PINK1,Parkin,Beclin1,LC3 protein expression.[Conclusion]JGXZ can alleviate liver injury in NAFLD mice by promoting the PINK 1/Parkin signaling pathway mediated activation of mitochondrial autophagy.

Dioscoreae Rhizoma formula granules are made from decoction pieces by decocting， extracting， separating， concentrating， drying and granulating， which have the advantages of simple dispensing， convenient use and easy to take without decoction. However， because Dioscoreae Rhizoma is rich in starch and mucus components， its extract powder and formula granules are poorly soluble and difficult to dissolve or disperse completely within 5 min， and the insoluble material is difficult to dissolve completely even after 24 h in water， which affects the quality evaluation of the formula granules and medication psychology of patients. Therefore， by studying the dissolution process and mechanism of Dioscoreae Rhizoma extract and its formula granules， it was found that the special chemical composition of Dioscoreae Rhizoma， the denaturation of starch and its compounding with protein and other substances during the high temperature extraction process， and the contraction of coating membrane during the spray drying process were combined to form the special microstructure of coating membrane covering starch granules， and it is the root cause of poor solubility of Dioscoreae Rhizoma formula granules. Based on the research on the structure， property and function of the powder， this paper proposed a technical strategy to improve the solubility of Dioscoreae Rhizoma formula granules by powder modification process， and experimentally demonstrated that the modified Dioscoreae Rhizoma formula granules could completely dissolve within 2 min， which solved the technical problem and could provide reference for the improvement of solubility of other similar varieties， and promote the high-quality development of traditional Chinese medicine formula granule industry.

Issues caused by maxillofacial tumours involve not only dealing with tumours but also repairing jaw bone defects. In traditional tumour therapy, the systemic toxicity of chemotherapeutic drugs, invasive surgical resection, intractable tumour recurrence, and metastasis are major threats to the patients' lives in the clinic. Fortunately, biomaterial-based intervention can improve the efficiency of tumour treatment and decrease the possibility of recurrence and metastasis, suggesting new promising antitumour therapies. In addition, maxillofacial bone tissue defects caused by tumours and their treatment can negatively affect the physiological and psychological health of patients, and investment in treatment can result in a multitude of burdens to society. Biomaterials are promising options because they have good biocompatibility and bioactive properties for stimulation of bone regeneration. More interestingly, an integrated material regimen that combines tumour therapy with bone repair is a promising treatment option. Herein, we summarized traditional and biomaterial-mediated maxillofacial tumour treatments and analysed biomaterials for bone defect repair. Furthermore, we proposed a promising and superior design of dual-functional biomaterials for simultaneous tumour therapy and bone regeneration to provide a new strategy for managing maxillofacial tumours and improve the quality of life of patients in the future.
Biocompatible Materials ; Bone Regeneration ; Bone and Bones ; Humans ; Quality of Life