Objective To explore the therapeutic efficacy of the water soluable photosensitizer D-galactopyranosyl zinc phthalocyanines (T1)-mediated photodynamic therapy (PDT) applied to HepG2 human hepatocellular carcinoma cells in vitro and in vivo,as well as its mechanism.Methods HepG2 cells in their logarithmic growth phase were cultured and divided into different concentrations ofT1 (0 μM,0.06 μM,0.125 μM,0.25 μM,0.5 μM and 1 μM).Methyl thiazolyl tetrazolium (MTT) assays were employed to determine the effect of the T1-PDT on the proliferation of the HepG2 cells.Cell apoptosis and necrosis were measured using a cell analyzer with Annexin VFITC/PI/Hochest33342 triple-staining.The reactive oxygen species (ROS) and the mitochondrial membrane potentials of the HepG2 cells were detected using fluorescence microscopy.Confocal microscopic assays were used to observe T1's subcellular localization on the HepG2 cells.Real-time quantitative polymerase chain reactions (RT-PCRs)were used to detect any apoptosis of Bcl-2-and Bax-related genes.H-22-bearing mice were used to calculate the antitumor rate of T1-PDT,and the expression levels of Bcl-2 and Bax mRNA were detected using RT-PCRs.Twenty-four healthy mice were randomly divided into a control group,a low-dose group,a middle-dose group and a high-dose group,each of 6.Each group was given different doses of T1-PDT and the tumor inhibition rate was calculated.Results The MTT assays showed that T1-PDT could significantly inhibit HepG2 cell growth,but T1 or PDT alone had little effect.The confocal microscope assay showed that T1 was mainly localized in the mitochondria in HepG2 cells with little in the lysosome.Cell analyzer results showed that T1-PDT could induce HepG2 apoptosis.The ROS levels of HepG2 cells increased after T1-PDT.The RT-PCR results showed that T1-PDT could increase the expression of Bax and decrease the expression of Bcl-2.The in vivo experiments demonstrated that T1-PDT significantly inhibited the growth of H-22-xenografied tumors.Conclusions T1-mediated PDT has a significant lethal effect on HepG2 cells in vitro and in vitro.The lethal effect of PDT on cancer cells is shown in the apoptosis and can be attributed to T1's subcellular localization in the mitochondria,increasing ROS levels,and regulating apoptosis-related genes.

Aim To study the mechanism of action of the new derivative of podophyllotoxin(LN-13)in indu-cing the apoptosis of K562/A02 cells.Methods The MTT method was taken to detect the inhibition of LN-13 and VP-16 on K562/A02 proliferation and inhibi-tion rate and IC50 values were obtained 48 hours later. The K562/A02 cell morphological change induced by LN-13 were observed through Hochest33342 and PI staining after 48 hours later.Flow cytometry was taken to detect the apoptosis of K562/A02 cells induced by LN-13.The reverse transcription-polymerase chain re-action was taken to detect the Bcl-2,Bax,caspase-3 and mdr-1 mRNA expression.The expression of P-gp was detected by Western blot.Results The growth of K562 /A02 cells was obviously inhibited by LN-13 when IC50 value was 3.32 μmol · L-1 .LN-13 could obviously induced cell apoptosis observed by Ho-chest33342 and PI staining.Flow cytometry detection showed that LN-13(2,4,8 μmol·L-1 )could induce cell apoptosis and apoptosis ratio reached 15.0%, 48.0%,68.96%,respectively.The reverse transcrip-tion-polymerase chain reaction showed that LN-13 in-creased the Bax and Caspase-3 mRNA expression,and meanwhile the expression of mdr-1 mRNA decreased. Western blot showed that P-gp expression was de-creased as the LN-13 dose increased.The data were significantly different from those of control group.Con-clusion Podophyllotoxin derivative LN-13 can induce the apoptosis of K562 /A02 cells,which may be close-ly-related to regulating P-gp expression and apoptosis related gene mRNA expression.

Objective Experimental study on effects of Yangxinshi tablets in the prevention and treatment of chronic is-chemic heart failure and acute myocardial ischemia reperfusion injury in order to provide a theoretical basis for its clinical appli-cation .Method Rat model of chronic ischemic heart failure and acute ischemia reperfusion mouse model of myocardial infarc-tion were constructed through coronary artery ligation .Those animals were randomized to sham operation group ,model group , positive drug group ,high Yangxinshi tablet dose group ,middle Yangxinshi tablet dose group ,low Yangxinshi tablet dose group .Rat electrocardiogram ,ultrasound ,ACE ,ACD ,TNF-a ,mouse myocardial infarction area ,CK ,LDH ,SOD and relat-ed factors were recorded during pre-dosing and post-dosing after modeling .Morphological changes were observed with cardiac pathological section .Results The biochemical indicators in model group were significantly different from sham operation group with statistical significance (P<0 .001) .Compared to the model group ,positive drug group and high Yangxinshi tablet dose group exhibited biochemical differences with statistical significance (P<0 .001 ,P<0 .01 ,P<0 .05) ,significant myocardial in-farction area reduction (P<0 .01 ,P<0 .05) ,improvement in myocardial cells and reduction in the cell infiltration .Conclusion Yangxinshi tablets have preventive and therapeutic effects on chronic ischemic heart failure and acute ischemia reperfusion in-jury .

Objective To assess the use of human albumin (ALB) after hepatectomy in hepatocellular carcinoma patients in our hospital .Methods 150 hospital medical records from June 2012 to June 2013 were analyzed ,which used the human ser-um albumin during the perioperative period of hepatectomy at hepatocellular carcinoma (preoperative Child-Pugh A or B) retro-spectively ,the rationality of human blood albumin use was evaluated .Results Among the 150 medical records ,the total appli-cation amount of albumin was 11 212 .5 g (897 bottles) ,the total cost was 527 ,744 yuan ,nearly 20 percent of total drug costs ,accounting for nearly 10% of the total cost of hospitalization .By using human serum albumin after surgery ,the patients'liver function was significantly improved (P<0 .05) ,there was a positive correlation between the Child-Pugh score and dosage of human albumin (P<0 .05) .Conclusion The use of human serum albumin was rational during the perioperative period of hepatectomy in hepatocellular carcinoma patients in our hospital ,which had achieved the desired therapeutic effect .

Objective To find out the main pathogenic bacteria distribution and sensitivity to antibiotics in patients post PTCD for malignant biliary obstruction ,to evaluate the therapeutic effectiveness of antibiotics and provide evidences for rational use of antibiotics .Methods The clinical data were collected and analyzed retrospectively from 423 PTCD cases with malignant biliary obstruction from September 2013 to October 2014 .Results Among 423 patients underwent PTCD ,101 patients were confirmed with infections .67 patients showed positive pathogenic bacteria culture .A total of 94 strains of pathogenic bacteria were detected .There were 62 strains of gram negative bacteria (65 .96% ) and 32 strains of gram positive bacteria (34 .04% ) . The main pathogenic bacteria were klebsiella pneumoniae , Escherichia coli ,enterococcus faecalis and Enterobacter cloacae . Klebsiella pneumoniae and Escherichia coli are the two gram negative bacteria most resistant to antibiotics .The three popular gram negative bacilli in this study had the lowest resistance to imipenem/cilastatin ,piperacillin/tazobactam and amikacin .The three main gram positive bacteria were most sensitive to daptomycin ,linezolid and vancomycin .The total effective rate of anti-biotic treatments for post PTCD infections was 88 .1% .Conclusion Our hospital had an appropriate treatment plan with antibi-otics to control the infections post percutaneous transhepatic cholangio-drainage for malignant biliary obstruction .According to the results of drug sensitivity test ,ceftriaxone had high resistance rate .The outcome with ceftriaxone treatment was unsatis-factory .Clinical pharmacists should advise doctors to reduce the usage of ceftriaxone .Glycopeptide antibiotics can be used to control methicillin-resistant staphylococcus (MRS) gram positive bacteria .

Objective:To explore the effects of magnanimous therapy on the magnanimous and enterprising traits of lung cancer patients and the analysis of related factors.Methods:Totally 197 patients with lung cancer were divided into individual group ( n=62), team group ( n=75) and control group ( n=60). Comparison and correlation analysis were applied to the data before and after the electroencephalogram and the magnanimous questionnaire, the cancer response questionnaire, the T-type psychological scale, the cancer heart state questionnaire and the cancer patient's life function index scale. t test, analysis of variance and Pearson correlation analysis were processed by SPSS 23.0. Results:After treatment, the " enterprising" dimension and " magnanimous" dimension of individual group and the " enterprising" dimension of the team group ((3.035±0.309), (3.041±0.265), (3.173±0.371)) were higher than that before treatment((2.934±0.326), (2.908±0.315), (3.130±0.387), all P<0.05). There was negative correlation between " magnanimous" dimension of the magnanimous questionnaire and " subconscious" dimension of the T-type psychological scale in individual group( r=-0.280, P<0.05). In team group, the " enterprising" dimension of the magnanimous questionnaire was negatively correlated with " Psychological" and " Yield" dimension of the cancer heart state questionnaire( r=-0.279, -0.285, P<0.05), and positively correlated with " Facing" of the cancer response questionnaire, " Good physical condition and ability" and " Psychological well-being" dimension of the cancer patient's life function index scale( r=0.367, 0.402, 0.379, P<0.05). There was a negative correlation between the " enterprising" dimension of the magnanimous questionnaire and the beta wave value in individual group. Conclusion:The magnanimous therapy can improve enterprising and magnanimous level of patients with lung cancer, and the effects are related with the above-mentioned psychosomatic factors.

Objective To investigate the correlation between serum levels of antiphospholipid antibody(aPL)(ACA-IgG,ACA-IgM,β2-GPI-IgG,β2-GPI-IgM),LAC,ds-DNA,and ANA and preterm labor with pre-maturity,and to analyze the prediction of preterm labor with the combination of age,week of gestation,history of delivery,and history of miscarriage,so as to provide references for the prevention and treatment of preterm la-bor and to promote eugenics.Methods Through a retrospective study design,43 pregnant women with preterm la-bor with preeclampsia diagnosed and treated at Guangdong Provincial People's Hospital from June 2018 to Decem-ber 2020 were collected as a case group,and 47 healthy pregnant women of the same period and similar gestational age were randomly selected as a control group.aPL(ACA-IgG,ACA-IgM,β2-GPI-IgG,β2-GPI-IgM)and ds-DNA were detected by enzyme immunoassay(ELISA)using an enzyme immunoassay instrument,lupus anticoagulant(LAC)in plasma was detected by coagulometer,and ANA was detected by indirect immunofluorescence using an immunofluorescence analyzer,and the application of SPSS 24.0 software was used to statistically analyze the gen-eral information and laboratory test data.the age of the patients was combined,gestational week,birth history,miscarriage history and other general information,logistic regression analysis was performed to find the indepen-dent influencing factors related to preterm labor;the analysis was performed by using the subjects'work charac-teristic curve(ROC curve)to determine the area under the ROC curve(AUC),the best predictive value,sensi-tivity and specificity,and to analyze the predictive value of preterm labor with preterm labor.Results In this study,the pregnant women in the group of pregnant women with preterm labor with preeclampsia were aged 27～40 years,with a mean age of(29.93±3.91)years,and the gestational weeks at the time of blood collection were 27-36 weeks,with a mean gestational week of(31.96±2.35)weeks,while the pregnant women in the healthy control group during the same time period were aged 25～40 years,with a mean age of(30.74±3.44)years,and the gestational weeks at the time of blood collection were 28～36 weeks,with a mean gestational week of(32.84±2.13)weeks.In the same period,healthy control group pregnant women were aged 25～40 years,with a mean age of(30.74±3.44)years,and were 28～36 weeks pregnant at the time of blood collection.The β2-GPI-IgM level of pregnant women in the case group with preterm labor was significantly higher than that of pregnant women in the healthy control group at the same time,with statistically significant differences(P<0.05),while the differences in the levels of β2-GPI-IgG,ds-DNA,and LAC between the two groups were not statistically significant(P>0.05).The analysis of the ROC curves showed that the AUC of β2-GPI-IgM was 0.642(P<0.05),which was the highest in the preterm group,and the AUC was 0.642(P<0.05).0.05),which was an independent influencing factor of preterm labor;age,gestational week,labor history,and miscarriage history could not be used as independent in-fluencing factors of preterm labor.Conclusion β2-GPI-IgM is associated with threatened preterm labor,it can be used as a predictor of threatened preterm labor,and has clinical utility in the monitoring of threatened preterm labor in pregnant women.