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BACKGROUND:As one of common oral diseases, periodontitis is the leading cause of tooth loss in adults. OBJECTIVE:To review the research progress on periodontitis treatment. METHODS:A computer-based search was performed on the PubMed database and CNKI database for articles addressing periodontitis treatment. The key words were“periodontitis, treatment, tissue engineering, gene engineering”in English and Chinese, respectively. Final y, a total of 57 articles were included to review. RESULTS AND CONCLUSION:Currently, the majority of scholars are stil focus to improve periodontal tissue, promote the regeneration and repair of periodonttal tissue. With the development of tissue engineering and gene technology in recent years, periodontitis has been treated from multiple perspectives and multiple aspects, to solve the problems of patients with periodontitis. However, some treatment methods are stil in their early stage and need in-depth research.
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Objective To observe the clinical effects of Xie's Feiai No.1 formula on patients with advanced non-small cell lung cancer (NSCLC) and its influence on body immune system, VEGF (blood vessel endothelia growth factor) and CYFRA21-1 (keratoprotein 21-1). Methods 650 cases of advanced NSCLC were randomized into a treatment group and chemotherapy group, with 350 cases and 300 cases in each group respectively. The treatment group was administrated with Xie's Feiai No.1 formula, while the chemotherapy group was treated with chemotherapy ofGP plan/TP plan. Both groups were treated for 2 months. Results The short-term effective rate was 56.57% in the treatment group, which was superior to 44.33% (P<0.01) in the chemotherapy group; Steady rate KPS score improvement was 85.14% in the treatment group, which was also higher than 27.00% (P<0.01) in the chemotherapy group; besides the levels of total T cell, adjuvant T cell and NK cell in the treatment group were higher than the chemotherapy group, while the levels of Ts cell, VEGF and CYFRA21-1 int the treatment group were lower than the chemotherapy group. Long-term efficacy observation showed that the survival rate of 117 cases with advanced NSCLC was 83.59% in one year and 46.27% in three years in the treatment group, both significantly higher than those in the chemotherapy group (P<0.01).Conclusion Xie's Feiai No.l formula can increase NSCLC patients' survival time, improve quality of life, strengthen immunological function and restrain tumor cells' activities.
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Spore surface display is one of attractive microorganism surface display systems. With the advantage of resistance attribute and specific assembly pattern, the technology of spore surface display now is attracting more and more attention. According to the current reports and main achievements of spore surface display, the structure and assembly of spores, the principle for construction and some existing spore surface display systems were elaborated in this paper. Now with the unique property of spores, the technique is not only widely used in production of vaccines but also has great applied potential in the field of biocatalysis and cell-factory.
