Study on the action mechanism of Wuling Powder on treating osteoporosis based on network pharmacology / 中国天然药物

Osteoporosis is a health problem to cause global concern. A lot of methods have been used to prevent and treat osteoporosis, but there is still a lack of effective treatment for osteoporosis owing to limited understanding of its mechanism. Therefore, the aim of this present study is to explore the underlying mechanism of Wuling Powder, a traditional Chinese medicine on treating osteoporosis. In this study, we firstly screened and identified the common targets between Wuling Powder and osteoporosis through the related databases, and then explored the relationships among these targets, Wuling Powder and osteoporosis by using Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) and network analyses. Subsequently, the molecular docking was performed by using systemsDock to evaluate the potential binding relationships between the active components of Wuling Powder and their related targets. The results showed that in total of 14 common targets including CREBBP, ADAM17, GOT1, GAPDH, USP8, ERBB2, EEF1A1, MTOR, RAC1, ETS1, DDX58, GCK, EGF and S100A8 were screened. EGF, ERBB2, MTOR and HIF-1 were the potential therapeutic targets for osteoporosis, and they were also the related targets for predicting active components in Wuling Powder. Taken together, we concluded that Wuling Powder might be used to treat osteoporosis through above these targets.

Treatment of long bone cyst in children by autologous bone marrow blood injection and elastic intramedullary needle / 中国骨伤

OBJECTIVE@#To observe the clinical effect of autologous bone marrow blood injection combined with elastic intramedullary needle implantation in the treatment of long bone cyst in children.@*METHODS@#From January 2010 to December 2015, 29 children with long bone cyst were treated with autologous bone marrow blood injection combined with elastic intramedullary nail implantation, including 22 males and 7 females, aged 2 to 12 years old with an average age of 7.7 years old, and the course of disease was 12 to 84 months. Among them, 17 cases were proximal humerus, 9 cases were proximal femur, 2 cases were distal femur and 1 case was proximal ulna. All children with bone cyst underwent preoperative X-ray examination and CT or MRI examination if necessary. After definite diagnosis, bone marrow blood injection combined with elastic intramedullary needle support and drainage were used as treatment methods. After operation, multiple X-ray examination and follow-up were carried out. The curative effect was evaluated with Capanna bone cyst treatment evaluation criteria.@*RESULTS@#Twenty-seven of 29 children were followed up for 12 to 60 months with an average of 31.8 months. According to the evaluation criteria of Capanna bone cyst, 26 cases were cured and 1 case was partially healed with residual lesions.@*CONCLUSIONS@#Autologous bone marrow blood injection combined with elastic intramedullary needle has the characteristics of definite curative effect, high cure rate, fewer complications and objectively controllable treatment process for simple long bone cyst in children.

Comparison of the efficacy between elastic intramedullary injection and autologous bone marrow blood injection in the treatment of bone cyst in children / 中国骨伤

OBJECTIVE@#To evaluate the efficacy of autogenous bone marrow injection and elastic intramedullary injection in the treatment of bone cyst in children.@*METHODS@#From January 2012 to December 2016, 56 children with simple bone cyst were divided into two groups: autogenous bone marrow blood injection group and elastic intramedullary needle group. There were 28 cases in the autogenous bone marrow blood injection group, 16 boys and 12 girls, aged (7.7±1.9) years old, 10 cases of proximal humerus, 8 cases of proximal femur, 6 cases of proximal tibia and 4 cases of femoral shaft. In the elastic intramedullary needle group, there were 28 cases, 18 boys and 10 girls, aged(7.5±2.2) years old, 11 cases of proximal humerus, 7 cases of proximal femur, 5 cases of proximal tibia, 4 cases of femoral shaft and 1 case of distal femur. The treatment effect was evaluated by Capanna standard.@*RESULTS@#All the patients were followed up, including 17 to 35(25.6±4.2) months in the elastic intramedullary needle group and 19 to 35(27.4±4.8) months in the autogenous marrow blood injection group. According to Capanna's evaluation standard of bone cyst, 27 patients in the elastic intramedullary needle group were treated effectively(25 patients cured, 2 patients healed but some remained lesions), 1 patients recurred, 0 patient had no response to treatment; 18 patients in the autogenous bone marrow blood injection group were treated effectively(13 patients cured, 5 patients healed but some remained lesions), 8 patients of cyst recurred, 2 patients had no response to treatment; the difference between the two groups was statistically significant(<0.01). The overall cure time was calculated by the follow-up of 25 cases in the elastic intramedullary injection group and 13 cases in the autogenous marrow blood injection group. The cure time was(20.2±3.5) months in the elastic intramedullary injection group and(27.7±4.9) months in the autogenous marrow blood injection group. The difference was statistically significant(<0.05).@*CONCLUSIONS@#For the treatment of bone cyst in children, the therapeutic effect of elastic intramedullary needle is better than that of autogenous bone marrow blood injection, and the cure time is shorter.

Research progress of mouse model for age-related macular degeneration / 国际眼科杂志(Guoji Yanke Zazhi)

@#Age-related macular degeneration(ARMD)is the leading cause of blindness in the individuals older than 65 years in developed countries. It is a complex disease influenced by interaction of heredity, age, environment, diet, smoking and many other risk factors. Dry ARMD first damages Bruch's membrane, then affect the retinal pigment epithelium(retinal pigmented epithelium, RPE)and photoreceptors. Pathological angiogenesis and vascular permeability increasing are mediated by vascular endothelial growth factor(VEGF), resulting the formation of choroidal neovascularization. ARMD in human will not be caused by none of the single risk factors. Animal models that mimic a single factor cannot reproduce all the phenotypes of ARMD but can reproduce different characteristics. These animal models provide an entry point for studying the disease mechanism and finding the target of drug action. Specific modeling methods include laser modeling, gene modeling, feeding, oxidation and other models. This article summarizes and reviews the domestic and foreign classic literatures in this field to help researchers to select the suitable methods and provide new ideas for modeling.