Objective To investigate the effect of Yangyinqingfei granula on immune function in the treatment of mycoplasma pneumonia complicated with Epstein-Barr virus of children.Methods 108 mycoplasma pneumonia complicated with Epstein-Barr virus of children from our hospital were selected and randomly divided into two groups.The control group of 54 cases were treated by simple western medicine treatment and the experimental group of 54 cases were treated on the basis of the control group with Yangyinqingfei granula.The improvement of clinical symptoms, inflammation indexes and the levels of T lymphocyte subsets, clinical efficacy and complications were compared.Results The clinical efficacy in experimental group was 90.74%,which was significant higher than that in control group 75.93%(P <0.05).Compared with the control group,the remission duration of fever, cough and rales,the disappearance time of lung X-ray,the length of stay were shorter(P<0.05), the CRP,IL-6,TNF-αand IL-8 levels were lower ( P <0.05 ) , the CD3 +, CD4 +, CD4 +/CD8 + and NK levels were higher, the CD8 +level was lower ( P <0.05 ) . Conclusion Yangyinqingfei granula could reduce the inflammatory factors and improve immune function in the treatment of mycoplasma pneumonia complicated with Epstein Barr virus infection pneumonia in children.

OBJECTIVE:To evaluate the economic effectiveness in different chemotherapeutic schemes for acute mononu?clear leukemia(M 5 ).METHODS:Using pharmacoeconomic cost-effectiveness analysis,three chemotherapy schemes for M 5 we_ re compared.RESULTS:Among three schemes,DAE scheme was the best one.CONCLUSION:The results show that phar?macoeconomics plays an important role in optimizing therapeutic scheme,in helping the physician to choose the best therapeutic plan in making clinical decision.

ObjectiveTo observe the effect of Chinese medicinal application at Yongquan (KI1) on hot flush and sweating brought by using GnRH-ain patients with endometriosis.MethodTotally 120 patients diagnosed with endometriosis of stageⅢ~Ⅳ were randomized into a treatment group and a control group. The control group started to receive GnRH-a(Goserelinum) at 3.6 mg/28 d since post-operational day 3, 4 times in total; the treatment group started to receive GnRH-a(Goserelinum) at 3.6 mg/28 d since post-operational day 3, 4 times in total; at the night of taking GnRH-a, the treatment group was also given Chinese medicinal application at Yongquan, a month as a treatment course, successively for 4 courses.ResultThe side effects of using GnRH-a, including hot flush and sweating, were significantly less in the treatment group than that in the control group (P<0.05).Conclusion Medicinal application at Yongquan can significantly reduce the side effects including hot flush and sweating brought by using GnRH-ain patients with endometriosis.

The process of writing graduation thesis is an important pathway of cultivating clinical thoughts and research skills for medical students.But these are some problems,such as understanding insufficiently in the importance of writing graduation thesis,unsuitable selection of graduation thesis,ineffective institution of encourage and management.Strengthening the management,improving the levels of instruction,advocating the group of study,examining report in intermediate stage and enhancing the encouragement are beneficial for improving the quality of the graduation thesis.

Objective To study the effects of UVR or H2O2 on the expression of p53 in human melanocytes,and that of nutlin-3 and PFT-α on the DNA oxidative damage,and to investigate the role of p53 in the antioxidative stress.Methods The effect of UVR,H2O2,nutlin-3 and PFT-α on the expression of p53 of human melanocytes was detected by Western blot analysis,and that of nutlin-3 and PFT-α on UVR or H2O2 DNA damage assessed by single cell electrophoresis (comet assay).Determination of the effect of nutlin-3 on H2O2 DNA damage was detected by γ-H2AX immunofluorescence.Results UVR and H2O2 could induce p53 protein expression,accompanied by increased phosphorylation of p53 on serine 15 residue,and nutlin-3 and PFT-α could induce and inhibit p53 protein in human melanocytes respectively; nutlin-3 decreased the tail moment of DNA oxidative damage of UVR or H2O2 in human melanocytes,but PFT-α increased the tail moment of DNA oxidative damage of UVR or H2O2 in human melanocytes,and there were significant differences among the control and exposed groups; nutlin-3 decreased expression of γ-H2AX.Conclusions p53 plays a very important role in the antioxidative stress in melanocyte exposed to UV or H2O2.

Objective To estimate the effect of a cis-imidazoline derivative,nutlin-3,on the biological behavior of A375 human melanoma cells,and to investigate its mechanism.Methods Cultured A375 cells were divided into several test groups treated with nutlin-3 at different concentrations (2.5,5,10 μmol/L) for 24,48 and 72 hours,and a control group treated with dimethyl sulfoxide (DMSO) only.Then,methyl thiazolyl tetrazolium (MTT) assay was performed to evaluate cellular proliferative activity,Western blot to measure the expression of p53 protein,flow cytometry to estimate cell cycle phase distribution and apoptosis rate,and Transwell assay to evaluate migratory activity,of A375 cells.Statistical analysis was carried out by repeated-measures analysis of variance (ANOVA).Results After treatment with nutlin-3 of 2.5,5 and 10 μmol/L for 24,48 and 72 hours,significant differences were observed among different time points at each concentration and among different concentrations at the same time point in proliferation inhibition rate (F =67.43,135.58,respectively,both P ＜ 0.01),p53 protein expression level (F =1255.00,9196.00,respectively,both P ＜ 0.01),percentage of cells at G2 phase (F =831.38,267.99,respectively,both P ＜ 0.01),apoptosis rate (F =809.45,723.83,respectively,both P ＜ 0.01),migration inhibition rate (F =1100.00,1667.00,respectively,both P ＜ 0.01).The influence of nutlin-3 on cellular proliferative activity increased with the increase in its concentration,and that on percentage of cells at G2 phase,apoptosis rate and migratory activity increased with the increase in its concentration and treatment duration.There was a significant interaction between the treatment duration and concentration of nutlin-3 for p53 protein expression level in (F =826.79,P ＜ 0.01),percentage of cells at G2 phase in (F =21.602,P ＜ 0.01),apoptosis rate in (F =44.48,P ＜ 0.01),migratory activity of (F =313.09,P ＜ 0.01),and cellular proliferative activity of (F =26.95,P ＜ 0.01),A375 cells.Conclusion Nutlin-3 may inhibit the proliferation and migration of,but promote cell cycle arrest and apoptosis in,A375 cells,through accumulation of p53 protein.

Objective To observe the clinical efficacy of transcutaneous acupoint electrical stimulation in intervening constipation during chemotherapy in breast cancer patients.Method Ninety breast cancer patients undergone chemotherapy were randomized into a treatment group and a control group, 45 cases in each group. The control group was intervened by conventional nursing care, while the treatment group was additionally intervened by transcutaneous acupoint electrical stimulation. The clinical efficacies were compared between the two groups.Result The total effective rate was 93.3% in the treatment group versus 73.3% in the control group, and the difference was statistically significant (P<0.01).Conclusion Transcutaneous acupoint electrical stimulation can effectively inhibit the incidence of constipation during chemotherapy in breast cancer patients.

Objective To extract phycobiliproteins from Porphyra haitanensis,find out the optimum extraction conditions and investigate the antioxidation activity of phycobiliproteins in vitro and anti-oxygen free radical in vivo.Methods Porphyra haitanensis was extracted with deioned-water at 40 volumes for 6 days and tissue-triturated for 2 minutes.The crude phycobiliprotein(CPP) was purified by precipitating with 45% ammonium sulphate and dialyzing.The scavenging activities of the crude phycobiliprotein on?OH of the system of 1,10-phenanthroline-Fe(Ⅱ)/H2O2 and O-2? of pyrogallol autoxidation were studied.And the mice were treated by gastric incubation with crude phycobiliprotein,at doses of 100,200,300mg?kg-1?d-1.The activities of erythrocyte catalase(CAT) and glutathione peroxidase(GSH-Px),serum superoxide dismutase(SOD) and the content of erythrocyte MDA in mice were determined on the 25th day after treatment.Results CPP could scavenge free radicals,and also can increase the activities of erythrocyte CAT,GSH-Px,serum SOD and decrease the content of MDA significantly.Conclusion The crude phycobiliprotein from Porphyra haitanensis has antioxidation activity in different ways.

Objective To observe the clinical efficacy of transcutaneous electric acupoint stimulation in intervening early-stage swelling limb after breast cancer operation.Method A hundred patients undergone radical mastectomy for breast cancer were divided into a treatment group and a control group, 50 cases in each group. The control group was intervened by ordinary post-operative nursing, while the treatment group was additionally given transcutaneous electric acupoint stimulation. By measuring the circumference of both upper arms, the incidence rate and degree of swelling arm in 2 weeks after operation were compared, meanwhile, the accompanied symptoms such as tightness of skin, pain in upper limb, numbness in upper limb, and heaviness of upper limb were observed.Result The occurrence rate of abnormal upper-limb sensations was 22.0% in the treatment group versus 84.0% in the control group, and the difference was statistically significant (P<0.01). The occurrence rate of upper-limb swelling was 4.0% in the treatment group, versus 24.0% in the control group, and the difference was statistically significant (P<0.01). Conclusion Transcutaneous electric acupoint stimulation can effectively prevent and release the early-stage upper-limb swelling after breast cancer surgery.

Lymphocyte-activation gene 3 (LAG-3), also known as CD223, is a 498-amino-acid type I transmembrane protein encoded by LAG-3 gene, which consists of extracellular, transmembrane and intracellular regions.LAG-3 negatively regulates T lymphocyte by binding extracellular domain to ligand, thus avoiding autoimmunitycaused by T cell over-activation. Like programmed cell death 1 (PD-1) and cytotoxic T lymphocyte antigen 4 (CTLA-4), LAG-3 is an important immune checkpoint in vivo and plays a balanced regulatory role in human immune system.Tumor cells escape the surveillance of the immune system by over-expressing LAG-3 ligand. With the development in research of immune checkpoints, LAG-3 has become a new generation of immunotherapy targets after PD-1 and CTLA-4. This article reviews the structure and function of LAG-3 and the application of its inhibitors in tumor immunotherapy, in order to provide reference for the further study of LAG-3.