Background and purpose:Tumor necrosis factor-related apoptosis inducing ligand(TRAIL)is a successful clinical anti-tumor agent.However,not all tumor cells are sensitive to TRAIL-mediated apoptosis.In this study,we examined the TRAIL-induced apoptosis after pretreatment with pentamidine in K562 cells.Methods:When K562 cells were pretreated with pentamidine followed by TRAIL,apoptosis of cells was analyzed by cellular morphology via viewing live cells under a light microscope and annexin V-FITC/propidium iodine FACS.Western blot was performed to examine the cleavage of caspase-3,-8 and poly(ADP-ribose)polymerase(PARR)and protein levels of X-linked inhibitor of apoptosis protein(XIAP).Results:Apoptotic cell death occurred and cleavage of caspase-3,-8 and PARR appeared when K562 cells were pretreated with 10?g/ml of pentamidine followed by 200 ng/ml of TRAIL.In addition,pentamidine decreased protein levels of XIAP.Conclusions:Combined treatment with pentamidine and TRAIL may become a new strategy for cancer therapy.

In National Comprehensive Cancer Network guideline, patients with the clinical stages of Ⅰ B-ⅢA esophageal neoplasms should be given radical PF regimen (cisplatin + 5-fluorouracil) concurrent chemoradiotherapy.The majorization PF and radiation dosage are studied by some scholars in China and abroad, and the local control rate and survival rate are improved, adverse reaction is within a controllable range.In recent years, some new drugs such as capecitabine, paclitaxel, docetaxel, pemetrexed and carboplatin also show their advantages in radical concurrent chemoradiotherapy.

For the purpose of diagnosis of sudden manhood death syndrome, immu- nohistochemical study of ANP was performed in right atria of 10 cases of sudden manhood death syndrome (SMDS) and 10 cases of noncardiac death controls with LSAB-method. It was found that the ANP granulus in right atria of SMDS were obviously depleted, compared with that in the control groups. The results showed that depletion of ANP granules in atria plays an important role in the causes of death of SMDS. This experiment also provides a new approach for studying the causes of SMDS.

Objective To explore the relationship of subjective health complaints and health promotion lifestyles among nursing college students.Methods A total of 775 nursing students in a college in Guangzhou city were surveyed using Subjective Health Complaints Scale and Health Promoting Lifestyles-Ⅱ (HPLP-Ⅱ),and then analyzed the datum of the investigation.Results The incidence rate of subjective health complaints was 57.9％(449/775).The symptoms of the top five were fatigue [19.2％(149/775)],eye discomfort [18.5％(143/775)],gastrointestinal upset [18.2％(141/775)],sleep disorders [16.6％(129/775)] and poor interpersonal relationship [11.0％(85/775)].The mean score of the HPLP-Ⅱ was 133.74±19.10,both scores of the HPLP-Ⅱ and the subscales in the nursing students without complaints were significantly higher than the others,P ＜ 0.01.Further multinomial Logistic results suggested HPLP-Ⅱ negatively related with the occurrence of subjective health complaints.Conclusion Health promotion lifestyle can prevent or improve the complaints status common existed among nursing college students.

Objective To explore the effect of empathy and forgiveness on urban residents' life satisfaction.Methods Interpersonal Reactivity Index(IRI),Trait Forgivingness Scale(TFS) and the Satisfaction with Life Scale(SWLS) were administrated to 3537 participants living in several provinces in China.Results ①The variable of perspective-taking had significant main effect on both forgiveness and life satisfaction(β=0.409,P ＜0.01 ; β=0.145,P ＜0.01),and particularly personal distress had significant negative effect on both forgiveness and life satisfaction (β=-0.291,P ＜ 0.01 ; β=-0.181,P ＜ 0.01)②Forgiveneas had significant main effect on life satisfaction(β=0.142,P＜0.01).③The relationship between perspective-taking and life satisfaction was partially mediated by forgiveness(P＜0.01).The relationship between personal distress and life satisfaction was also partially mediated by forgiveness (P ＜ 0.01).Conclusion Perspective-taking and personal distress has different predicting effect on life satisfaction,and forgiveness plays an important mediating role in the relationship between them.

Objective To study the effects of Genistein-magnetic-nanoparticles at different concentrations on the growth and expression of focal adhesion kinase(FAK) in human hepatocellular carcinoma cell line HepG2.Methods Activities of HepG2 cells treated by Genistein-magnetic-nanoparticles were examined by MTT assay.The expression of FAK mRNA and protein was respectively detected by immunohistochemistry staining and reversed transcriptase polymerase chain reaction(RT-PCR).Results Genistein-magnetic-nanoparticles at a concentration of 10-80mg/L inhibited the proliferation of HepG2 cells,with obvious concentration-dapendent and time-dependent effect relationships(P

Objective To study the effects of Genistein - magnetic - nanoparticles at different concentrations on the growth and ex-pression of focal adhesion kinase (FAK) in human hepatocellular carcinoma cell line HcpG2. Methods Activities of HepG2 cells treated by Genistein - magnetic - nanoparticles were examined by MTT assay. The expression of FAK mRNA and protein was respectively detected by immunohistochemistry staining and reversed transcriptase polymerase chain reaction (RT - PCR) . Results Genistein - magnetic -nanoparticles at a concentration of 10 -80mg/L inhibited the proliferation of HepG2 cells, with obvious concentration - dapendent and time - dependent effect relationships (P < 0.05). After treatment with various concentrations of Genistein - magnetic - nanoparticles for 48h, the relative level of FAKmRNA of Genistein - magnetic - nanoparticles and control groups was 1.242 ± 0.031,1.213 ± 0.443,0.834 ± 0.044,0.652 ± 0.039,0.446 ± 0.041, and 1.443 ± 0.053 (F = 21.97 ,P < 0.05), respectively. The expression of FAK protein in the cells was decreased, which showed an obvious a concentration - effect relationship. Conclusion Genistein - magnetic - nanoparticles can reduce the mRNA and protein expressions of FAK and inhibit the proliferation of HepG2 cells.

Objective To evaluate the efficacy and safety of Liqifuwei oral liquid for prophylaxis of chemotherapy induced-constipation through a randomized controlled trial.Methods Cancer patients who met the inclusion criterias were randomly assigned to the treatment group and the control group by random number table.Liqifuwei oral liquid was prescribed 20 ml per tid from the first day of chemotherapy in the treatment group,the control group accepted the conventional treatment.Incidence and degree of chemotherapy inducedconstipation,degree and duration time of abdominal distension,anorexia and diarrhea were compared by criteria of NCI-CTC 3.0.Results A total of 100 patients were eligible,including 50 patients in the treatment group and 50 patients in the control group respectively.Incidence rate of chemotherapy induced-constipation was 48 ％ (24/50) and 98 ％ (49/50) (P ＜ 0.000 1),all patients were grade 1-3 constipation,no grade 4 and grade 5 constipation (P =0.036).Incidence rate of abdominal distension was 36 ％ (18/50) and 70 ％ (35/50)(P =0.001 3),abdominal distension degree (P =0.033),duration time of abdominal distension was (2.22±1.48)days and (3.43±1.60) days (P =0.01).Incidence rate of anorexia was 56 ％ (28/50) and 90 ％ (45/50)(P ＜ 0.000 1),there was no significance different of anorexia degree (P =0.818).One patient in treatment group underwent mild diarrhea.Conclusion The prophylaxis of Liqifuwei oral liquid for chemotherapy induced-constipation and abdominal distension is effective,which deserves large-sample studies and clinic application.

Objective To study genotyping and molecular epidemiology distribution of GBS pathogenic strains of GBS positive pregnant women in Guangzhou,for GBS pathogenic strains of rapid molecular diagnosis and epidemiological surveillance pro-vide certain theoretical basis and method.Methods In the Guangzhou area,used multi stage stratified sampling method col-lecting GBS positive pregnant women’s reproductive tract specimens from January to December 2015,drug sensitivity quality control standard strains:Streptococcus pneumoniae (ATCC49619)and Staphylococcus aureus (ATCC25923),took culture of bacterial,strain,identification,DNA extraction,PCR,gene detection method,through the relevant software for data analy-sis,analyzed GBS strains of gene and molecular epidemiology.Results In the study,collected 2 812 samples of secretions,af-ter identification of strains isolated from 178 strains of pathogenic GBS strains,the detection rate was 6.33%.GBS patho-genic strains to linezolid vancomycin,penicillin,nitrfurantion and other antimicrobial drug resistance rate was 0,GBS parho-genic strains to ampicillin,ciprfloxacin moxifloxacin and levofloxacintesistant parts,the restance rates were 1.1%,16.9%, 18.0% and 22.5%,but GBS pathogenic strains to erythromycin,clindamycin tetracydine antibiotics showed a high resistance rate,the resistance rates were 50.6%,47.8%(of which 20 cases of erythromycin induced clindamycin resistance accouted for 23.5%)and 73.0%.Among them,65 strains of GBS detected the mreA gene,56 strains of GBS detected the ermB gene,36 strains of GBS detected the mefA gene,28 strains of GBS detected the mefE gene,5 strains of GBS detected the ermA gene, ermC gene was not detected in the gene.Among them,carried five multidrug resistance gene of 3 strains (1.6 9%)and 4 kinds of resistant gene carried with 15 strains (8.43%),carried three resistance genes of 19 strains (10.67%),2 kinds of resistant gene carrying a 25 strains (14.04%),carried the resistance gene of 5 strains (2.81%),did not carry resistance gene of 1 strain (0.56%).The nucleotide sequences of the five drug resistance genes were 100%,and no gene mutation oc-curred.Conclusion The main GBS disease resistant gene was mreA,ermA,ermB,mrfA,mefE and its nucleotide sequence homology was 100%.The clinical need to strengthen the detection of resistant gene and molecular level and guide clinical more scientific and rational drug use.