Objective To investigate the increased cytotoxicity induced by luteolin and cisplatin cotreatment and validate its mechanism.Methods HepG2 cells were pretreated with luteolin for 1 hour or remained untreated and followed by exposure to cisplatin.Cells were stained with Hoechst,and Caspase-3 activity was detected by spectrophotometry.Cell death was detected by LDH release assay.Phosphated C-jun N-terminal kinase (JNK) and total JNK1 were detected by Western blot.Results Luteolin significantly enhanced Caspase-3 activity and HepG2 cells apoptosis by cisplatin.The cell death rates by co-treatment with different concentration of luteolin (0-20 μmol/L) and cisplatin (10 μg/ml) were much higher than cisplatin or luteolin alone treatment.Combined treatment of luteolin (20 μmol/L) with cisplatin (10 μg/ml) killed 47.66 ％ of HepG2 cells.There were significant differences on cell death between combination group and single reagent group (F =535.48,P ＜ 0.01).Combination group showed better efficacy than single reagent group.The Caspase-3 activity of HepG2 cells treated by luteolin (20 μmol/L),cisplatin (10 μg/ml) or luteolin (20 μmol/L)plus cisplatin (10 μg/ml) were 1.94,1.74 and 8.12 times of negative control group respectively.Combination treatment induced sustained activation of JNK signaling pathway.Conclusions Enhancing cisplatin-induced JNK activation by luteolin leads to increased cytotoxicity in HepG2 cells.The combination of luteolin and cisplatin is an effect apporch for improving the anticancer value of cisplatin,which has implications in cancer prevention and therapy.

Memory T cells play an important role in the pathogenesis of tumors as a result of the long term of tumor immunity and the heterogeneity of T cells. Great progress in the studies on the generation, classification, mechanism of maintenance and function of memory T cells in tumor immunity have been made in recent years, which may facilitate our understanding of immunological memory and the clinical therapy of tumor.

Some hormones and glucocorticoid in chronic strss feedback are demonstrated to have significant effects on cancer progression.Recently,as a typical neuropeptide,gastrin releasing peptide (GRP) could mediate chronic stress to promote carcinogenesis through four conceivable mechanisms,such as regulating circadian rhythms,suppressing immunity system,acting as a mitogenic effect and mediating cancer-related psychiatric disorders,et al.

OBJECTIVE:To discuss the effect of Ethinylestradiol and cyproterone acetate tablet combined with metformin on ovulation induction of patients with polycystic ovarian syndrome(PCOS). METHODS:184 PCOS patients were randomly divided into control group(92 cases)and observation group(92 cases). Control group orally received 1 Ethinylestradiol and cyproterone ac-etate tablet in 5 d of menstruation,once a day,it stopped after 21 d,the next cycle of treatment was started on the 5th of with-drawal bleeding. Observation group additionally received 3 Metformin tablet,once a day,without drug withdrawal during menstrua-tion,and lasted for 3 menstrual cycles. After 3 menstrual cycles,all patients received ovulation induction treatment [(50-100 mg clomiphene was orally given from the 5th day of the 4th menstrual cycle,for 5 days,or 75-150 U postmenopausal gonadotropin by intramuscular injection,when the dominant follicle diameter was(19.0±2.0)mm,10 000 U human chorionic gonadotropin(HCG) was intramuscularly injected,the ovulation was continuously monitored and whether there was ovarian hyperstimulation syndrome (OHSS)was observed]. Body mass index(BMI),follicle estrogen(FSH),luteinizing hormone(LH),prolactin(PRL),estradiol (E2)and testosterone(T)before and after treatment,fasting plasma glucose(FPG),fasting insulin(FINS),insulin resistance in-dex(HOMA-IR),pregnancy rate,ovulation rate and the incidences of OHSS and adverse reactions in 2 groups were observed.RE-SULTS:Before treatment,there were no significant differences in the BMI,FSH,LH,PRL,E2,T,FPG,FINS and HOMA-IR between 2 groups(P>0.05). After treatment,BMI,LH,PRL,E2,T,FPG,FINS and HOMA-IR in observation group and LH, E2 and FINS in control group were significantly lower than before,and BMI,PRL,E2,T,FPG,FINS and HOMA-IR in observa-tion group were lower than control group,the differences were statistically significant(P<0.05). The pregnancy rate and ovulation rate in observation group was significantly higher than control group,the incidence of adverse reactions was significantly lower than control group,the differences were statistically significant (P<0.05). And there was no significant difference in the incidence of adverse reactions between 2 groups(P>0.05). CONCLUSIONS:Ethinylestradiol and cyproterone acetate combined with metfor-min can effectively improve insulin resistance of POCS patients,recovery sex hormone secretion,promote ovulation and improve pregnancy rate,with good safety.

Objective To discuss application value of intestinal electromyography in patients with hepatic cirrhosis and to observe intestinal myoeletric activity.Methods There were 65 cases of hepatic cirrhosis in expermental group and 30 cases in control group. All the cases were recorded body surface intestinal electromyography using gastrointestinal myoelectric analyzer(WCDF-4B, Hefei , P.R.China). The parameters included average peak range-Ap, main frequency-Fp, average over zero frequency-Fz and special wave form were surveyed.Results Sharp higher Fz abnormal rate and emergence rate of special wave form in hepatic cirrhosis group were higher than in control group,P0 05.Conclusions In hepatic cirrhosis group,Fz was much higher than that in control group. And the intestinal myoelectric activity increased in the patients with hepatic cirrhosis,which represented by appearance of characteristic wave form that was frequent micromigration wave as well as load wave. Those changes accounted for heighten and irregularity of excitability intestinal myoelectric activity. Moreover, it will increase for the incidence of abnormality of intestinal myoelectric activity along with damage degree of hepatic function. Intestinal electromyography is a reliable method to judge intestinal myoelectric activity, the method has characteristics of harmless,free pain, convenient, safty and steady.

Objective To investigate the changes and clinical significance of the plasma growth differentiation factor-15 (GDF-15) in patients with chronic congestive heart failure (CHF). Methods A total of 100 patients with CHF were in?cluded in this study (CHF group), and 30 healthy persons were used as control group. CHF group was divided into heart func? tionⅡgrade (n=35),Ⅲgrade (n=32),Ⅳgrade (n=33) groups in accordance with New York Heart Association (NYHA). And CHF group was also divided into left ventricular ejection fraction (LVEF)<0.4 grade (n=52) and LVEF≥0.4 grade (n=48) groups in accordance with LVEF of patients. The plasma GDF-15 and brain natriuretic peptide (BNP) levels were detected by ELISA. The values of LVEF, left ventricular end-diastolic diameter (LVDd), left ventricular systolic diameter (LVDs) and left ventricular fractional shortening (LVFS) were detected by echocardiography. The correlation of GDF-15, NYHA classifi?cation, BNP and index of echocardiography was analyzed between groups. Results Compared with control group, the levels of BNP, GDF-15, LVDd and LVDs were significantly higher in heart failure group, and values of LVEF and LVFS were sig?nificantly lower (P<0.05). The plasma levels of BNP, GDF-15, LVDd and LVDs were in turn increased in control group, LVEF≥0.4 grade group and LVEF<0.4 grade group. The plasma levels of LVFS were in turn decreased, in control group, LVEF≥0.4 grade group and LVEF<0.4 grade group (P<0.05). There were positive correlations between the plasma levels of GDF-15 and BNP, NYHA, LVDd and LVDs (r=0.524, 0.286, 0.453 and 0.531, P<0.05). The plasma level of GDF-15 was negatively correlated with LVEF and LVFS (r=-0.592,-0.587,P<0.05). Conclusion The plasma level of GDF-15 can be used as a new marker for diagnosis, treatment and prognosis in patients with chronic congestive heart failure.

Objective:To investigate the relationship between obesity and chronic periodontitis.Methods:2 1 36 subjects (1 091 males and 1 045 females)were included.Body mass index(BMI)was calculated.Gingival index (GI),tooth pocket probing depth (PD)and attachment loss (AL)were measured at 6 ponint of each tooth according the quartation method.The correlation between obesity and the indexes of periodontitis was studied by Spearman analysis.Results:There was a significant positive correlation of BMI degree with chronic periodontitis;there was no correlation between BMI and GI,PD in men,but BMI was positively correlated with AL,BMI and GI in women.Conclusion:Progress of chronic periodontitis may be related to obesity,the relation is more significant in women.

Objective To explore the effectiveness of transcranial magnetic stimulation (TMS) combined with hyperbaric oxygen (HBO) in treating cerebral infarction.Methods Totally 120 patients with cerebral infarction were randomly divided into a control group,a treatment group A and a treatment group B,40 cases in each group.The control group was given conventional treatment,the treatment group A was treated by HBO on the basis of conventional therapy,and the treatment group B was treated by HBO combined with TMS,10 d for a period of treatment.Before and after 2 courses of treatment,all patients' neurological defect was evaluated using National Institutes of Health Stroke Scale (NIHSS).Their central motor conduction time (CMCT) and the expression of brain derived neurotrophic factor (BDNF) and nerve growth factor (NGF) were also assessed.Results After treatment,the average NIHSS score and effective rate of the treatment group B was (7.35 ± 1.98) and 92.5％ respectively,significantly better than the other two groups.Moreover,the average BDNF content [(4.96 ± 1.20) ng/ml] and NGF content [(152.36 ± 18.01)pg/ml] of the treatment group B after treatment were significantly better than before treatment,and those of the other two groups after treatment.Conclusion TMS combined with HBO is effective in treating cerebral infarction.This may relate to its strengthening the expression of neurotropic factors.

Objective To investigate the effects of Huaier Granule combined with TAC chemotherapy on immunologic function and prognosis in triple negative breast cancer patients after operation.Methods Ninty-two cases of Ⅰ-ⅢA stage triple negative breast cancer patients entered the study.They were randomly divided into control group and research group.Only TAC chemotherapy was affected in control group of 42 cases, while Huaier Granule combined with TAC chemotherapy was applied in research group of 50 cases.And we gave Huaier Granule to patients in the first day of chemotherapy.The changes of T cell subset, NK cell were detected in the patients respectively in the first day before therapy and after therapy.The five-year disease-free survival rate and overall survival rate were also observed in two groups.Results Compared with control group, the changes of T cell subset, NK cell had no significant differences in research group in the first day before therapy(P ＞0.05).In the first day after therapy, the level of CD4 + (38.16 ± 5.71) ％ in control group was significantly lower than that (44.67 ± 6.47) ％ in research group(P ＜ 0.05).However, the percentage of CD8 + T cells (28.68 ± 4.06) ％ in control group was markedly higher than that (22.85 ± 3.22) ％ in research group (P ＜ 0.05).The level of NK cell (15.75 ± 3.47) ％ in control group was obviously lower than that (19.46 ± 4.22) ％ in research group(P ＜ 0.05).The five-year disease-free survival rate is 28.6％ in control group, however the five-year disease-free survival rate is 42.0％ in research group, there were significant differences between two groups(P ＜ 0.05).Furthermore, the five-year overall survival rate in research group was obviously higher than that in control group(P ＜ 0.01).Conclusions Huaier Granule combined with TAC chemotherapy not only enhances immune function but also improves prognosis and quality of life in triple negative breast cancer patients after operation.It provides a positive exploration for anti-cancer research by integration of traditional and western medicine.

Objective To confirm the role of human parvovirus B 19 ( B19) infection in childhood immune thrombocytopenia ( ITP) patients.Methods A total of 416 cases of newly diagnosed childhood ITP patients from Jan .2011 to Dec.2013 had been summarized to be cases group , Then a total of 130 childhood patients with common respiratory tract infection were selected randomly as the control group . All patients had been divided in grouped by age as <1 years group(n=187), 1-3 years group(n=127), 3-7 years group(n=71), and 7-14 years group(n=31).The incidence rate of B19 infection in all age groups, the prognosis conditions in B19 infection positive and negative groups after the same therapy protocol were obserred .Results The B19 infection rate had no statistical significance in re-search groups and control groups .And no significant difference in the same age groups compared with control groups (all P>0.05) was found.All the ITP patients had not been given anti -B19 treatment.The PLT remission rate,respectively, after treated with the same pro-tocol including glucocorticoid and/or immunoglobulin had a declining trend as the ages increasing .The B19 infection groups of all ages al-so had no significant difference PLT remission rate had been confirmed in non -B19 infection patients in each age groups (all P>0.05). Conclusions B19 infection may not be a major cause in childhood newly ITP , and treatment protocol with no anti -B19 treatment had no influence on the clinical curative efficacy .