1.Effect of extracorporeal shock wave on proliferation, differentiation, adhesion and migration of rat osteoblasts in vitro
Zhonglian HUANG ; Jun HU ; Menglei YU ; Zhijun LU
Chinese Journal of Tissue Engineering Research 2010;14(24):4547-4552
BACKGROUND: Extracorporeal shock wave therapy is indicated as an effective method for treatment of delayed fracture healing or nonunion. Osteoblasts plays an important role in this process.OBJECTIVE: To investigate the function of osteoblasts in the process of extracorporeal shock wave promoting fractures healing, and to provide theoretical support for improving shock wave therapy on fracture healing.METHODS: Primary cultured ostsoblasts were isolated from newbon SD rat calvaria and randomly divided into two groups, shock wave and control. Treated by different energies of extracorporeal shock wave, cells were incubated onto 96-well culture plate. An optimal dose of extracorporeai shock wave was selected according to survival and proliferation of osteoblasts. The osteoblasts treated by optimal energy of extracorporeal shock wave were cultured and harvested for the analysis of alkaline phosphatase by calcium cobolt stain, cell survival by CCK-8 Kit, alkaline phosphatase expression by AKP kit, mineralized nodules by Alizarin red staining, integrin β1 and β1 mRNA expressions by flow cytometry and RT-PCR, cell migration by wound healing assay.RESULTS AND CONCLUSION: The optimal energy of extracorporeal shock wave treating primary cultured osteoblasts was 10 kV (500 impulses). Following extracorporeal shock wave therapy, the cell proliferation, alkaline phosphatase activity, cell mineralization, rates of cell adhesion, as well as β1 integrin and its mRNA expressions were increased as compared with those in control group (P < 0.01). Further distance of cell migration was found in extracorporeal shock wave group (P < 0.05). The results showed that the optimal energy of extracorporeal shock wave could promote the proliferation, differentiation, adhesion and migration of osteoblasts in vitro, and β1 integrin may play an important role in the process of cell adhesion and migration.
2. Study progress of microbiome in immune diseases
Chinese Journal of Applied Clinical Pediatrics 2019;34(17):1358-1360
Microbiome is a new research field, and it associated with a variety of chronic autoimmune diseases.The microbiome has received increasing attention as a potential contributing factor to the development of a wide array of immune-mediated diseases, including inflammatory bowel disease, type 1 diabetes mellitus and juvenile idiopathic arthritis.Gut microbiota plays a crucial role in modulating innate and acquired immune responses.The microbiome may influence the development of the immune system, the integrity of the intestinal mucosal barrier, and the differentiation of T cell subsets, and finally resulting in autoimmune diseases.The potential to manipulate the microbiome, might then offer perspectives for future therapeutic interventions.Before such interventions can be thought, a deeper understanding of the cause and effect relationship between these immune diseases and the microbiome is needed to first obtain.Now, the advances in the study of microbiome in immune diseases are discussed.
3.Rotary self-locking intramedullary nail for treating long tubular bone fracture of extremities
Menglei YU ; Jun HU ; Weilin ZHAO ; Xue XIA ; Jianxin SONG ; Wei HAN ; Xinjia WANG
Chinese Journal of Primary Medicine and Pharmacy 2009;16(7):1229-1230
Objective To evaluate the results of rotary self-locking intramedullary nail (RSIN) for treating long tubular bone fracture of extremities, and discuss the current problems. Methods One hundred and twenty-two patients with long tubular bone fracture of extremities,including 59 femoral fractures,57 tibial fractures and 6 humeral fractures,who had been treated by RSIN were retrospectively investigated. Results All of the patients achieved clin-ical healing,with an average time of 24 weeks. Nobody was found to appear maluniun,infection and the break of inter-nal fixture. Internal fixations were removed after the fracture healing,with an average time of 14 months. It was diffi-cult to remove the internal fixations in 5 cases, and one case refractured after removing the internal fixations. Conclu-sion RSIN has the advantages such as easy operation,less trauma,no pendulum effect,early motion after operation and so on, except the characters of general interlocking intramedullary nail such as anti-rotation, anti-crispition and anti-displacement.
4. The clinical application value of seven tumor-associated autoantibodies in the diagnosis of non-small cell lung cancer
Liu LU ; Menglei DING ; Yu CHENG ; Yide GUO ; Keli WANG ; Lieying FAN
Chinese Journal of Laboratory Medicine 2019;42(9):768-775
Objective:
This study was designed to evaluate the clinical value of seven combinedtumor-associated autoantibodies (7-TAAB) in the diagnosis of non-small cell lung cancer (NSCLC).
Methods:
This is a cross-sectional study. The 81 newly diagnosed patients with NSCLC were enrolled. 46 patients with benign pulmonary diseases (BLD) and 55 healthy subjects were selected as the BLD group and the healthy control (HC) group, respectively. ELISA was used to detect the concentration of seven TAABs of p53, PGP9.5, SOX2, GAGE7, GBU4-5, MAGE A1 and CAGE in the serum of the NSCLC and the other two groups. The levels of lung cancer tumor markers CEA, NSE, SCC and CYFRA21-1 in serum were also detected in all enrolled subjects. Kruskal-wallis test was used for comparison among the three groups, Mann-Whitney test was used to evaluate the differences between the two groups, and positivity rates were analyzed by using standard χ2 tests and Fisher exact tests. The receiver operating characteristic (ROC) analyses were performed to evaluate the diagnostic efficacy of 7-TAAB or combination of 7-TAAB and traditional tumor markers.
Results:
The serological levels of six TAABs (p53, SOX2, GAGE7, GBU4-5, MAGE A1, and CAGE) in the NSCLC group were higher than that in the BLD group (p53: