Objective To investigate the effects of matrine on proliferation and apoptosis of human rhabdomyosarcoma(RMS) RD cells line in vitro,to study the regulatory mechanism of Wnt/β-catenin pathway-influenced apoptosis of RD cells line by detecting the expressions of β-catenin protein,Bcl-2 protein and caspase-3 protein,and to explore Wnt/β-catenin mechanism during the process of RMS.Methods The human RMS RD cells line was treated with matrine of different concentrations (0.5,1.0,1.5,2.0 g/L)for 48 hours respectively,and the proliferation inhibition rates of different concentrations of matrine on RD cells were detected by methyl thiazolyl tetrazolium assay,while the apoptosis rates by flow cytometry (FCM) and the expressions of β-catenin,Bcl-2 and caspase-3 by Western blot.Results The proliferation inhibition rates between control group and different concentrations of matrine groups were(13.70 ±0.25)％,(33.16 ±0.11)％,(42.96 ±0.90)％,(56.26 ±0.79)％ and (67.89 ±0.63)％,respectively.The apoptosis rates were (5.49 ± 0.96) ％,(17.23 ± 5.03) ％,(25.84 ± 4.17) ％,(36.08 ± 3.68) ％and (47.79 ± 4.82) ％,respectively.The highest expression of β-catenin and Bcl-2 proteins and the minimum amount of caspase-3 protein were found in the control group.After intervention of matrine,the expressions of β-catenin and Bcl-2 reduced while the amount of caspase-3 rose significantly,which was concentration-dependent obviously.Differences were found between every concentration of matrine group with control group according to statistics (all P ＜ 0.05).Conclusions Matrine can inhibit proliferation and induce apoptosis of RD cells.Matrine can down-regulate the expression of β-catenin and Bcl-2 proteins in RD cells,while the amount of caspase-3 protein rises.Wnt/β-catenin signal pathway plays an important role in the apoptosis of RD cell induced by matrine,and its downstream proteins Bcl-2 and caspase-3 are also involved in the regulation of this process.

Objective To assess the efficacy of mycophenolate mofetil (MMF) combined with low dose of hormone and lamivudine in the treatment of hepatitis B virus associated glomerulonephritis (HBV-GN).Methods The clinical data of 49 HBV-GN patients diagnosed by renal pathology was reviewed.They were treated with MMF( ≥ 12 years old,0.75 g,two times a day; ＜ 12 years old,0.4 g/m2,two times a day),low dose of hormone [0.5 mg/(kg·d) ],lamivudine( ≥ 12 years old,100 mg/d; ＜ 12 years old,3 mg/kg,two times a day).Results Among of 49 HBV-GN patients,clinical cure rate was 71.4％(35/49),the total effective rate was 81.6％(40/49),85.7％(42/49) patients' HBV DNA level decreased from 5.43 ×104 copies/ml to ＜ 1000 copies/ml.The complete remission rate was 88.0％ (22/25),the partial remission rate was 8.0％ (2/25),the inefficiency was 4.0％ (1/25) in membranous nephropathy (MN);the complete remission rate was 44.4％ (4/9),the inefficiency was 55.6％ (5/9) in mesangial proliferative glomerulone phritis (MsPGN) ; the complete remission rate was 70.0％(7/10); the partial remission rate was 30.0％(3/10)in membrane proliferative glomerulone phritis (MPGN) ;the complete remission rate was 40.0％ (2/5),the inefficiency was 60.0％(3/5) in focal segmental glomerulosclerosts (FSGS).There was significant difference among the different pathological type (P＜0.05).There were less adverse reactions.Conclusions MMF combined with low dose hormone and lamivudine is safe and effective in treating HBV-GN.The efficacy and pathological type has some relationship,MN has the best response,MPGN and MsPGN are second,FSGS is poor.

Objective To explore the different probability of carcinoma and the necessity of treatment in cervical columnar ectopy (CCE),normal smooth cervix and cervical intraepithelial neoplasia(CIN) by investigating the different expression of matrix metalloproteinase-9(MMP-9).Methods The expression of MMP-9 was detected by using immunohistochemical method in 30 cases of CCE,28 cases of CIN and 30 cases of normal smooth cervix from 2007 to 2012.Results The positive expression of MMP-9protein in CIN was 96.4％ (27/28),CCE was 23.3％ (7/30) and normal smooth cervix was 20.0％ (6/30)respectively.The positive expression of MMP-9 protein was higher in CIN than CCE and normal smooth cervix,the difference has statistical significance (P＜ 0.01),there was no significant difference between CCE and normal smooth cervix (P ＞ 0.05).Conclusions CCE,which was a physiological performance of cervical erosion,should not be overtreated.But the women of childbearing age should be routinely performed in cervical cancer screening.

Objective To evaluate the clinical effects of intra arterial thrombolytic therapy for acute ischemic cerebral infarction and analize the factors influencing the clinical prognosis. Methods 32 patients were treated with intra arterial thrombolysis using urokinase(median dose, 65?10 4 U) within 2～20 hours, after the onset. The patient's condition was assessed by neurologists using National Institutes of Health Stroke Scale(NIHSS) score right at the admission. Clinical outcome was assessed after 3 months and graded as good for Modified Rankin Scale(MRS) scores of 0 to 3 and poor for MRS scores of 4 or 5 and death. Results Follow up cerebral angiography of 14 cases treated within 6 hours after onset showed complete/partial recanalization in 13 cases. Other 18 patients whose treatment started beyond 6 hours after onset outcame with complete/partial in 7. 20(62.5%) of the 32 patients had good outcome, 12(37.5%) had poor outcome and two patients(9.4%) died. Cerebral hemorrhage occurred in 2 of the 32 patients. Good outcome was associated with an initial NIHSS score of

Objective To evaluate the influences of the genotypes,anther developmental stages,and cultural conditions on the efficiency of embryogenic callus induction and plant regeneration in the anthers culture of Bupleurum chinense.Methods The different effects such as four genotypes,plant growth regulators,and temperature condition were compared in the experiments.The histological study was performed with the process of the anther culture.Results The highest inducing rate of embryogenic calli were achieved for the genotypes Zhongcaiyihao(ZCYH),Z4,and Z5 at the early-to middle-uninucleate stages,except for genotype ZPM1 at the tetrad stage.Cold pretreatment increased the production of the embryogenic callus,in which 4-day cold pretreatment improved the production of embryogenic callus from 0% to 2.2% and 5.0% for genotypes ZPM1 and ZCYH,respectively.No embryogenic callus was induced in the medium containing less than 0.75 mg/L 2,4-dichlorophenoxyacetic acid(2,4-D).The highest regeneration rate (34.6%)was obtained in 1/2 MS salts regeneration medium supplemented with 0.1 mg/L 6-benzylmaminopurine (BA).The low concentration of BA was able to promote the embryogenic callus formation and subsequent plantlet regeneration via somatic embryogenesis.Chromosome counting of regenerated plantlets showed mostly diploid plant (2n = 12)with only one haploid plant(n = 6).Because of the low rate of microspore embryo formation,we only tracked the process of embryogenesis from the connective tissue,instead of microspore by histological observations.Conclusion This study establishes an efficient system for embryogenic callus induction and plant regeneration system.This is the first report on the haploid plantlet through the anther culture orB.chinense.

Aquilaria sinensis callus induced by stem tips were used to establish the suspension cell system. The results showed that the most suitable medium for callus induction and subculture is MS + 2.0 mg x L(-1) NAA + 1.0 mg x L(-1) 6-BA. After 12 times of subculture, the energetic and loose callus, which were appropriate for cell suspension culture, were cultured and shook in liquid medium MS + 2.0 mg x L(-1) NAA + 1.0 mg x L(-1) 6-BA + 500.0 mg x L(-1) casein hydrolysate (CH) to establish the suspension cell system. The growth curve of suspension cells showed a "S" type. At the beginning of the culture, cell density increased slowly; during 4 to 6 days, suspension cells reached logarithmic growth period; during 7 to 12 days, suspension cells were in the platform period; but after 12 days, cell density and activity went down obviously. Agarwood sesquiterpenes were not detected in the suspension cells during the growth period, however, they could be detected in MeJA treated suspension cells. In this study, a stable and active growing suspension cell system was established, which was a proper system to study the mechanism of agarwood sesquiterpene formation, and additionally provided a potential way to generate agarwood sesquiterpenes through application of cell culture.

Objective To create the evaluation index system of rehabilitation service for all disabled in Shanghai.MethodsCompositive quantitative and qualitative research methods,such as literature review,focus-group discussion,questionnaire survey,specialist consultation were carried in the study.ResultsThe Evaluation Index System of Rehabilitation Service for All Disabled in Shanghai finally comes into being includes 8 first-degree index,32 second-degree indexes and 100 third-degree index.ConclusionThe evaluation index system would be provided with directive significance to the goal of 'rehabilitation service for all disabled persons'.

OBJECTIVETo study the characteristics of male sterility of Bupleurum chinense and further explore the developmental period and reason of abortion for the male sterile plants.

METHODThe morphological characteristics of B. chinense male sterile and normal plants were investigated and compared. The anther development process and pollen viability of two types of plants were examined by microscopic assay.

RESULT AND CONCLUSIONThe shapes and sizes of anther and filament were different between the male sterile and the normal plants. For the male sterile plant's, the filament size was no more than 1/2 of that of normal plants and the anthers were shriveled, failed to dehisce and pollinate naturally, and the pollen grains in the anthers had no vitality. Other morphological characteristics were similar between two types of plants. The main reason leading to male sterility of B. chinense was the abnormal development of tapetum cells with two circumstances. The one is that the tapetum cells degraded early during the period of microsporocyte phase to tetrad phase and the other is that the tapetum cells proliferated with delayed degradation in the tetrad to uninucleate phase.

Bupleurum ; anatomy & histology ; cytology ; physiology ; Plant Infertility ; Pollen ; anatomy & histology ; cytology ; physiology

Objective To investigate the population distribution,biofilm formation and drug resistance of Staphylococcus aureus isolated from pressure ulcers infected patients in the hospital,and to provide important clinical evidence.Methods From May 2019 to May 2022,a total of 126 strains of Staphylococcus aureus relat-ed to pressure ulcer infections were collected in the hospital.The bacteria were identified by Vitek MS mass spectrometer,and the drug susceptibility test was performed by disk diffusion method(K-B method).The drug susceptibility results were analyzed according to the standards of the American Association for Clinical Laboratory Standardization(ACLA),2016-M100.The crystal violet staining method was used to detect the biofilm of Staphylococcus aureus and determine its formation ability.Glucose and silver ion powder were add-ed to the biofilm respectively,and their effects on biofilm formation were observed.Results From May 2019 to May 2022,126 strains of Staphylococcus aureus related to pressure ulcer infection were collected from the hospital.Pressure ulcer was detected at all ages and levels.The proportion of strains forming biofilm was 73.00％,and the proportion of strains forming biofilm was 81.81％in the strain isolated from stage Ⅳ pres-sure ulcer,which was higher than that in the strain isolated from other stages(Ⅱ and Ⅲ)(63.33％),and the differences were statistically significant(P＜0.05).Strains with different biofilm formation ability had higher resistance rates to penicillin G,tetracycline,ciprofloxacin,sulfamethoxazole/trimethoprim,but lower resist-ance rates to teicoplanin and levofloxacin.No Gram-positive bacteria resistant to vancomycin were detected.There were no significant differences in drug resistance of Staphylococcus aureus in different biofilm levels(P＞0.05).11.10 mmol/L glucose could promote the formation of biofilm,10.00 μg/mL silver ion antibacte-rial gel could inhibit the formation of biofilm.Conclusion The biofilm formation ability of Staphylococcus au-reus to cause stage Ⅳ pressure ulcer infection is strong and the formation of biofilm is related to the stage of pressure ulcer.The antimicrobial resistance of Staphylococcus aureus producing membrane has no obvious re-lationship with the grade of biofilm.The use of silver ions and the reduction of blood glucose level have a cer-tain inhibitory effect on biofilm formation.

OBJECTIVETo breed new varieties with better uniformity and commercial quality as well as higher saikosaponin contents.

METHODThe excellent germplasm resources were selected from "zhongchai no. 1" population. Single plant method was applied to get better varieties. All the breeding material was investigated according to morphological characters, agronomic characters and the contents of saikosaponin a and saikosaponin d. The experiments of comparative test and varieties regional test were carried out.

RESULTThe bred new varieties of "zhongchai No. 2" and "zhongchai No. 3" had better uniformity. The dark brown roots ratios of the two varieties were 83.2%, 89.9%, respectively. The contents of saikosaponins (a + d) of the two varieties reached 1.31%, 1.02%, respectively.

CONCLUSION"zhongchai No. 2" and " zhongchai No. 3" both had the advantages of better uniformity, darker brown roots and higher saikosaponin contents.

Breeding ; Bupleurum ; chemistry ; genetics ; growth & development ; Oleanolic Acid ; analogs & derivatives ; analysis ; Plant Extracts ; analysis ; Saponins ; analysis