Objectives To investigate the effects of matrine on the proliferation and apoptosis of SK-NEP-1 cells in vitro, and its possible mechanism. Methods Trials were divided into following groups:control group, 0.5, 1.0 and 1.5mg/ml of ma-trine intervention groups. The inhibition rate of SK-NEP-1 cells treated with different concentration of Matrine was detected by MTT colorimetric assay. Apoptosis rate was detected by flow cytometry (FCM). RT-PCR analysis was employed to measure the PDCD4 mRNA expression. Results Matrine (final concentrations=0.5, 1.0 and 1.5mg/ml) could induce apoptosis and inhibit the growth of SK-NEP-1 cells. Compared with the controls without matrine treatment (8.81±3.71)%, the inhibition rates of SK-NEP-1 cells were (20.79 ± 6.20)%, (31.25 ± 5.07)%, and (51.15 ± 12.70)%, respectively;the apoptotic rates of SK-NEP-1 cells treated with different concentration of matrine were (13.67±0.78)%,(17.43±1.65)%and (20.80±1.54)%, respectively. Significant difference in the inhibition and apoptotic rates of SK-NEP-1 cells between each drug group and control group was observed(P<0.05), and the inhibition and apoptotic rates of SK-NEP-1 cells increased gradually with increased matrine concentration, thus exhibiting a dose-dependent effect(P<0.05). To the expression of CXCR4 mRNA,the grey levels of SK-NEP-1 cells treated with matrine intervention group (final concentrations=0.5, 1.0 and 1.5 mg/ml) were (0.720 ± 0.058), (0.540 ± 0.095) and (0.307 ± 0.050), respectively. The mRNA expression of CXCR4 was seen in SK-NEP-1 cells. Compared with control group, the expres-sion of CXCR4 mRNA was decreased significantly in matrine intervention group (P<0.01).There were significant difference in CXCR4 mRNA level among the SK-NEP-1 cells treated with 0.5,1.0,1.5mg/mL of matrine (P<0.01). Conclusions Matrine could induce apoptosis and inhibit the growth of SK-NEP-1 cells in a dose-dependent way which may be associated with the down-regulated CXCR4 expression in SK-NEP-1 cells.

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 investigate the effect of Matrine on the expression of X-linked inhibitor of apoptosis protein (XIAP) in human rhabdomyosarcoma RD cells in vitro.Methods Cultured human rbabdomyosarcoma RD cells were divided into Matrine intervention groups (0.5 g/L,1.0 g/L and 1.5 g/L) and a control group.The proliferation-inhibition rates in RD cells treated with different concentrations of matrine were detected by methylthiazolyl blue colorimetric assay.Flow cytometry analysis was performed for the apoptosis rates of RD cells.Reverse transcription-polymerase chain reaction analysis was used to measure the XIAP mRNA expression.Results There was a significant difference in the proliferation-inhibition rates [0.5 g/L Matrine group:(15.84 ± 2.58)％,1.0 g/L Matrine group:(23.13 ±4.19)％,1.5 g/L Matrine group:(30.32 ±3.02)％,and the control group:(8.92 ± 1.23)％];apoptotic rates [0.5 g/L Matrine group:(12.33 ± 1.15)％,1.0 g/L Matrine group:(16.67 ± 0.99)％,1.5 g/L Matrine group:(25.33 ± 1.91)％,and the control group:(9.47 ± 0.96)％];XIAP mRNA expression(0.5 g/L Matrine group:0.633 ± 0.046,1.0 g/L Matrine group:0.441 ± 0.055,1.5 g/L Matrine group:0.326 ± 0.065,control group:0.794 ±0.029)in RD cells among 0.5 g/L,1.0 g/L,1.5 g/L Matrine groups and the control group (F =14.15,83.37,50.57,all P ＜ 0.05).The proliferation-inhibition and apoptotic rates in RD cells were gradually increased with the increasing Matrine concentration.The expression of XIAP mRNA was significantly decreased in different Matrine groups compared with the control group,exhibiting a dose-dependent manner.Conclusions Matrine can inhibit the proliferation of RD cells and induce the apoptosis in a dose-dependent manner,which may be related to the down-regulated XIAP mRNA.

Objective To observe the CT features of ovary Brenner tumor. Methods CT manifestations of 5 patients with ovary Brenner tumor confirmed with pathology and clinical follow-up were retrospectively analyzed, and the masses were described for location, size, configuration, enhancement pattern, presence of calcification and metastatic spread. Results There were 7 tumors in 5 patients, 3 patients had unilateral tumors and 2 had bilateral Brenner tumors (left side 3 and right side 4), with tumor size ranging from 1.52 to 16.25 cm (mean 7.36 cm). Five masses in 4 patients were benign, 2 (bilateral tumors in 1 patient) were malignant. All tumors had well-defined margin. One patient with bilateral benign tumors had large pleural effusion and seroperitoneum. Five tumors in 4 patients (5/7, 71.43%) were solid and had calcification, 2 tumors in 1 patients (2/7, 28.57%) were mainly cystic, with septa in the tumors. The solid part of all tumors were inhomogeneous and had mild enhancement. Conclusion CT findings of ovary Brenner tumor have some characteristics. Combining with clinical manifestations, CT is helpful for the diagnosis of ovary Brenner tumor.

Objective The purpose of this paper is to study the relationship between blood concentration and brain tissue drug concentration by different dose of TMX chemotherapy acute lymphoblastic leukemia in mice. Methods 4 weeks, health Kun Ming mice 80: establishment acute lymphoblastic leukemia mice model,20 mice were randomly selected to take the femur bone marrow biopsy bone marrow OK for model verification; the remaining 60 acute lymphoblastic leukemia mice were allocated randomly 6 groups of 10 mice in each group, respectively A, B, C, D, E, F groups. And collected blood 0.5 ml and brain tissue 0.4 g individually at 0.5 hour in every group. We used supernatant of centrifugation blood and brain homogenate to detected drug concentration by fluorescence polarization immunoassay. Results The mean blood concentration of MTX of six groups A, B, C, D, E, F are (39.08±5.18) μmol/L, (15.86±1.02)μmol/L, (8.67± 5.43)μmol/L, (68.29±5.19)μmol/L, (29.55±6.22)μmol/L, (13.98±1.12)μmol/L, respectively. Compared the mean blood concentration of MTX of each group there are statistical significance (P<0.05). The mean concentration of MTX of six groups in brain tissue are followed by A group (1.05±0.26)μmol/L, B group (0.61±0.25)μmol/L, C group (0.48±0.25)μmol/L, D group (2.07±0.35)μmol/L, E group (1.27±0.21)μmol/L, F group (0.59±0.69)μmol/L. Compared the mean concentration of MTX of each group in brain tissue there are statistical significance (P<0.05). MTX concentration in blood and in brain tissue of correlation coefficient followed by 0.82, 0.75, 0.19, 0.81, 0.55, 0.43. Conclusion The chemotherapy acute lymphoblastic leukemia mice of HDMTX scheme, the peak of blood concentration and brain tissue drug concentration is come after injected MTX 0.5 hour, MTX 5 g/m~2 is better permeation blood-brain barrier and more easy make brain tissue drug concentration to reach effectively therapeutic concentration than MTX 3 g/m~2.

BACKGROUND: As indicated by clinical research, if cerebral infarction could be effectively treated at early stage, especially normal specific therapy provided within 6 hours or even earlier after attack, the prognosis would be significantly better than delayed therapy. However, it is still unclear that whether the changes of cellular apoptosis-inducing or -inhibiting indicators could be used as criteria in the judgment of prognosis.OBJECTIVE: To test the content of cell apoptotic factor and to investigate the prognosis in hospitalized patients with cerebral infarction who received treatment at different time for further verification of the therapeutic timing for the disease.DESIGN: A same term randomized controlled study based on patients.SETTING: Department of neurology of a general hospital of a military area command of Chinese PLA.PARTICIPANTS: Totally 144 male patients admitted in the Second Department of Neurology, General Hospital of Jinan Military Area Command of Chinese PLA between 2000 and 2002 were divided into four groups including 6 hours, 24 hours, 72 hours and 96 hours group according to different time of therapy provided.METHODS: Oral administration of 400 mg Lumbrokinase, 2 tablets of heparin sodium, 60 mg of nimodipine, and 100 mg of vitamin E, three times a day. 150 mL of normal saline(NS) containing 52.5 mg of Ginkgo biloba L extractive(Jin Na Duo) and 150 mL of NS containing 10 mL of Cerebroprotein Hydeolysate were used through intravenous drop once a day. Ten days were set as one therapeutic course and 2 courses were given. 200 g/L of mannite was given to dehydrate for patients with large area infarction(＞ 7 cm2) . Platelet membrane Fas, Apo2.7 and Bcl-2 percentage and prognostic assessment were tested in patients of four groups before and after therapy.MAIN OUTCOME MEASURES: Peripheral platelet membrane Fas,Apo2.7 and Bcl-2 percentage in patients of different group and prognosis evaluation.RESULTS: Percentage of platelet membrane Fas, Apo2.7 and Bcl-2 of 6 hours group was significantly higher or lower after therapy than before therapy ( P ＜ 0.05 ), and moreover, the difference with other groups was significant( P ＜ 0.05), As revealed in the analysis of prognosis, the effectiveness of patients who received therapy within 6 hours was significantly better than that of 96 hours group and the mortality reduced significantly.CONCLUSION: Normal hospitalizing therapy provided within 6 hours after attack could surely improve the prognosis and reduce the disability rate, and the abnormity and extent in Fas, Apo2.7 and Bcl-2 are closely correlated with prognosis.

Objective To learn the overall results of the final test paper in nursing undergraduates of Peking Union Medical College, and to provide the theoretical support for teaching quality assessment of nursing undergraduates.Methods The difficulty coefficient, the discrimination index, the reliability (Cronbach α coefficient) and the degree of coverage were analyzed based on education measurement and education statistical methods.Results The mean total score was 67.8±12.5, ranged from 38 to 95.The difficulty coefficient, the discrimination index and the Cronbach α coefficient were 0.68, 0.30 and 0.71 respectively.The rates of loss score were 33.8% for choice questions, 37.2% for completion questions, 22.5%for true or false questions and 24.8% for calculation questions respectively.Among the total 30 examination questions, the proportions of the most difficult ones, the difficult ones, the moderate ones, the easy ones and the easiest ones were 30.0%,13.3%,20.0%,20.0% and 16.7% respectively.28 examination questions (93.3%) had the best or better discrimination.Conclusions The test paper held the moderate difficulty and the good discrimination, reliability and the degree of coverage.The results of the examination accurately reflect the knowledge and ability of the students.In addition, more attention should be paidto improve the knowledge of nursing undergraduates on the importance of the medical statistics in medical scientific research.

Objective To investigate pulmonary infect flora distribution characteristics of stroke patients with tracheotomy in Intensive care unit (ICU) and analyze the risk factors.Methods A total of 792 cases of ICU stroke patients was selected,including 426 cases of tracheotomy patients,and 366 cases of non-tracheotomy patients.The incidence of lung infections was compared.Bacteriological examination was used for tracheotomy bacteriological studies for lung infected stroke patients with tracheotomy.Bacteria infection's characteristics was observed.The risk factors were analyzed.Results (1) The tracheotomy patient 's lung infection rate was 23.00％,higher than 9.56％ of the non-tracheotomy patients,the difference was statistically significant (X2 =19.125,P ＜0.05);(2) For lung infection-occurred patients with tracheotomy of ICU,gram-negative bacteria infection rate was 63.97％,significantly higher than 19.85％ of gram-positive bacteria and 16.18％ of fungi,the difference was statistically significant (x2 =18.255,17.042,P ＜ 0.01);(3) Lung infection rate of ICU stroke tracheotomy patients with unconscious,dysphagia,hospitalization time ＞ 14 d,blood glucose levels ≥≥7.8 mmol/L,and based diseases was significantly higher than that of patients with conscious,non-dysphagia,hospitalization time ≤＜14 d,blood sugar level ＜7.8 mmol/L,and no based diseases (P ＜ 0.05);(4) Consciousness,dysphagia,hospitalization,blood sugar levels,and the underlying disease were the independent risk factors of lung infection in ICU stroke tracheotomy patients (OR1 =11.528,OR2 =8.046,OR3 =15.174,OR4 =7.795,ORs =10.784,P ＜0.05).Conclusions Gram-negative bacteria is the main reason for pulmonary infections in ICU stroke tracheotomypatients patients with stroke.State of consciousness,invasive treatment,hospitalization,blood sugar levels,and the underlying disease are the independent risk factors.

Objective To explore the changes of alveolar morphology and alveolar epithelial cells in rats with hyperoxia-induced chronic lung diseases (CLD). Methods CLD model in neonatal rats was established by inhalation of high concentration oxygen(85%～90% ). Eighty neonatal rats were randomly exposed to hyperoxia (model group) and to room air (control group) (n =40 each). Radical alveolar counts and the alveolar septum thickness were used to evaluate alveolar development. The site and intensity of expression of SPC,AQP5 protein were detected by immunohistochemical staining,the dynamic expression of SPC mRNA,AQP5mRNA was detected by RT-PCR on day 1,3,7,14 and 21 after exposure. Results There were no significant differences about alveolar wall thickness and RAC between experimental groups and control group on day 1～3 ( P > 0. 05 ). But there was significant difference between the model group and the control groups on day 7 and 14 (P <0. 01 ). For model group,alveolar septum thickness peaked on day 21, the difference was significant compared with control group ( 10. 62±5.01 vs 3.62±0. 88, P < 0. 001 ), but RAC decreased to the lowest level, the difference was significant compared with control group ( 3.57±1.24 vs 10. 47±0. 88,P <0. 001 ). The expression of SPC decreased on day 3 manifestedly but increased on day 7 and the levels of SPC were higher than that in the control group. Experimental group showed gradual decrease in AQP5 expression as the lung impairment devastated. Conclusion Alveolar development was delayed and alveolar epithelial cell (AEC) was damaged in the neonatal CLD rats. The changes of SPC,AQP5 expression suggested AECI was severely damaged and failed in full recovery, meanwhile the quantity of AEC Ⅱ was increased but the ability of its differentiation and transformation was decreased.

The paper reviewed clinical reports on the treatment of hypermenorrhea, menostaxis, and uterine bleeding with Ancong Decoction and modified Ancong Decoction. Although there were few reports concerned with clinical usage, Ancong Decoction has sound therapeutic effects, with more than 90% effective rate.