1.Antitumor and immune regulating effect of exosomes cancer vaccine derived from H_(22) in vivo
Journal of Chongqing Medical University 1986;0(04):-
Objective:To investigate the influence ofexosomes tumor vaccine on immunity and grouth ofmouse hepatocellular carcinoma xenograft in mice.Methods:Hepatoma carcinoma H22 cell-derived exosomes were isolated and purified from the culture supernatants by serial ultracentrifugation and sugar density ultracentrifugation.BALB/c mice inoculated with H22 cell were used as tumor models.The mice inoculated with H22 cell were divided into two groups at random:exosomes group and PBS control group.15 days later,the mice were killed;then the tumor inhibitory rate was calculated.The spleens and thymuses were weighed,and the effect of exosomes on spleens and thymus index was determined.The proliferation and cytotoxicity of splenocytes were detected by MTT assay.The level of IL-2 and INF-? in splenocyte culture supernants was detected by enzyme-linked immunoabsorbent assay(ELISA).Results:Exosomes cancer vaccine depressed the growth of tumor remarkably,and its tumor inhibitory rate was 42.38%.Compared with these in PBS control group,the spleen indexes and thymus indexes of mice bearing tumor in experiment group were increased(P
2.Wnt signaling pathway and bronchopulmonary dysplasia
International Journal of Pediatrics 2012;39(1):43-45
Wnt signaling pathway is an conserved signaling pathway.Three signaling pathways are typically described for Wnt proteins:the canonical Wnt/β-catenin pathway,the noncanonical pathways including the polar cell polarity pathway and the Wnt/Ca2+ pathway.The complex components have diverse roles in regulating lung development and lung diseases.Bronchopulmonary dysplasia(BPD) is one of chronic lung diseases based on the immature lung due to inflammation damage and abnormal repair of pulmonary fibrosis after injury.This paper reviewed the roles of Wnt pathway in lung development,inflammation and pulmonary fibrosis in hope of revealing potential links between Wnt pathway and BPD.
3.Progress on diagnosis and therapy of differentiated thyroid cancer under guidance of precision medicine
Journal of Medical Postgraduates 2015;(12):1322-1326
The incidence of thyroid cancer is increasing recently, and differentiated thyroid cancer accounts for more than 90% of all thyroid malignancies.Although the degree of malignancy of thyroid cancer is lower and prognosis is better, but there is pos-sibility to relapse and metastasis.The concept of precision medicine has paid more and more attention by many surgeons.This paper reviews how to get perfect diagnosis and therapy of differentiated thyroid cancer to reduce risk of relapse and metastasis by application of precision medicine.
4.Exploitation and Application of a Website for Clinical Pharmacists'Online Learning and Communication
China Pharmacy 2001;0(10):-
OBJECTIVE:To establish a website platform for clinical pharmacists'online learning and communication and to promote the development of clinical pharmacy.METHODS:A MySQL database in remote server was established,and PHP dynamic web page program was applied to construct a website for clinical pharmacists.RESULTS:The website ran smoothly and fast and its maintenance is very convenient,which met clinical pharmacists' needs for the online learning and communication. CONCLUSIONS:The establishment of website platform is of significance for the online learning,information sharing and communication among clinical pharmacists in clinical pharmacy.
5.Cell signaling pathways and bronchopulmonary dysplasia
International Journal of Pediatrics 2016;43(9):684-688
The bronchopulmonary dysplasia(BPD),one of the most common complications in prema-ture infants,has become one of the most difficult problems in neonatal intensive care unit. The molecular mecha-nism of BPD is extremely complicated,of which the pathogenesis process requires the participation of many sig-nal transduction pathways. This article summarizes the probable relationship of mitogen activated protein kinases signal pathways,nuclear factor-κB pathways,transforming growth factor beta pathways,Wnt pathways,mTOR pathways with BPD.
6.Clinical application of carbon nanoparticles suspension in outpatient thyroid microcarcinoma surgery
Journal of Medical Postgraduates 2016;29(10):1063-1066
Objective Recently a lot of studies have shown carbon nanoparticles can protect parathyroid, however, there is no application in outpatient thyroid operation. The article was to investigate the influence of carbon nanoparticles suspension ( CNS) in?jection on the operation and prognosis of outpatient thyroid microcarcinoma(TMC) surgery. Methods Retrospective analysis was conducted on the clinical data of 65 patients who underwent outpatient TMC surgery from January to June in 2015 in our hospital. The patients were divided into 2 groups:33 patients in trial group were injected with CNS, and the other 32 patients in control group under?went conventional surgery. Comparison was made in operation information, pathologic data, postoperative complications, postoperative hospital stay as well as C?reactive protein(CRP) and blood calcium of the first day after operation between the two groups. Results The average number of VI region lymph nodes in trial group(8.21±2.08)was significantly higher than that of control group(P=0.004). Removal of 5 parathyroid glands for mistake was detected in control group, but no removal of parathyroid gland was detected in trial group, showing significant difference (P=0.028). 3 patients in control group had numbness in skin, while none in trial group. The hospital stay of trial group was lowered significantly in comparison to that of control group([31.09±6.62] vs [35.75±7.37], P=0.009). The average C?reactive protein ( CRP ) of the first day after operation in trial group was much lower that of control group([7.17±5.20] vs [9.87±5.60] mg/L, P=0.048). The average blood calcium of the first day in trial group was much higher than that of control group ([2.07±0.17] vs [1.98±0.20] mmol/L, P=0.036). Conclusion Outpatient TMC surgery injected with carbon nanoparticles sus?pension can protect parathyroid gland function, reduce surgical stress and accelerate recovery.
7.Effect of antifreeze or antioxidant at different cryopreservation conditions on activity of adipose cells
Chinese Journal of Medical Aesthetics and Cosmetology 2013;(3):215-218
Objective To explore the effect of different antifreeze or antioxidant at different cryopreservation conditions on the activity and the morphology of adipose cells.Methods After purification,fat granules were divided into 5 groups; the same volume of antifreeze or antioxidants were added in each group,stored at-20℃ (refrigerator),-80℃ (ultra-low-temperature refrigerator) and-196 ℃ (liquid nitrogen) ; the amount of glucose transfer was determined and the morphological changes were observed for each group after two weeks,two months,and three months.Results Fat activity of the group adding both dimethyl sulfoxide (DMSO) and trehalose was significantly higher than that in other groups at the same temperature and the same time point.The decreased amount of glucose transfer of 80℃ group and 196℃ group was significantly lower than that of 20℃ group,and that in groups of each 196℃ were greater than that in groups of each 80℃.Conclusions Antifreeze can obviously keep activity of fat cells.Preservative effect of DMSO is better than trehalose,and that of both combination is much better.Liquid nitrogen storage of adipose tissue for three months and fat granules stored at 80℃ for two months are still suitable for clinical use.
8.Effects of electron beam and triamcinolone acetonide on the rabbit ear scar
Chinese Journal of Medical Aesthetics and Cosmetology 2014;20(3):215-218
Objective To observe the morphological changes by different electron beam radiation methods and different triamcinolone acetonide treatments on the role of hypertrophic scar of rabbit ear,and to explore the optimal treatment for the rabbit ear scar.Methods The ventral rabbit ear hypertrophic scar model was established,and intervention began at 28 days after surgery.The animals were randomly divided into control group (group A),saline group (group B),surgery plus saline group (group C),triamcinolone acetonide group (group D),surgery plus triamcinolone group (group E),and electron beam group (group F),2 days after surgical electron beam group (group G),and 7 days after surgical electron beam group (group H).HE stain,VG stain,toluidine blue stain,CD34 and Alpha-SMA immunohistochemical staining were performed,and comparied on histomorphology of each group.Results Collagen fibers observed showed that there was no statistically significance between groups A and B,groups D and G and groups F and H (P>0.05),and the difference was statistically significant between other groups (P<0.05).Mast cells were not typical by toluidine blue staining.The microvascular observation showed there was no statistically significance between groups A and B,groups F and H,and groups G and H (P>0.05),and the difference was statistically significant between other groups (P<0.05).Myofibroblasts showed no statistically significance between the groups A and B (P>0.05),but the difference was statistically significant between other groups (P<0.05).Conclusions Compared with electron beam radiation methods,triamcinolone acetonide injection is a better treatment.Early postoperative radiotherapy is better than late.Triamcinolone acetonide or electron beam radiation combined with surgery is better than simple treatment.
9.Research progress on the molecular mechanism of breast cancer bone metastasis
Journal of Medical Postgraduates 2015;(4):432-436
Breast cancer is one of the most common malignant tumors in women. Bone is commonly affected in the context of metastatic breast cancer.Once bone metastasis happens, patient would experience poor prognosis and impaired quality of life.However, there is a lack of approaches for more sensitive and specific diagnosis and treatments for breast cancer bone metastasis.Thus, it is im-perative to find new treatment target from molecular mechanism.In this paper, we review the current research progress on the molecular mechanism from several levels including gene profile, proteins and microRNAs.We also review the establishment of animal models of breast cancer bone metastasis.With the achievements acquired in the completed or undergoing researches on breast cancer bone metasta-sis, we hope the finding of the optimal diagnostic and therapeutic targets could lead the breast cancer research into a new era.
10.THE STUDY OF COMPARISON BETWEEN ELISA AND DOT-ELISA TO DETECT TBB-MLO TSWV AND PSEUDOMON AS SOLAN ACEARUM
Yuancheng WANG ; Shaohua CAI ;
Microbiology 1992;0(04):-
Tomato big bud mycoplasma-like organism (TBB-MLO) Tomato spotted wilt virus (TSWV) and P. solanacearum was detected by using ELISA and Dot-ELISA methods. The risults showed that to detect TBB-MLO and P. solanacearum Dot-ELISA was about 50—100 times sensitive than ELISA method, but to detect TSWV it gave same results of both methods.