Objective To study the expression and significance of antiapoptosis facter-clusterin in prostate neoplasm. Methods Reverse transcriptive polymerase chain reaction(RT PCR) was used to examine the expression level of clusterin in prostate cancer tissues(3 cases),prostate cancer cell line PC3M and normal prostate tissues(3 cases). Results Compared with the internal marker gene ? actin , the expression level of clusterin in prostate cancer is much higher than that of normal prostate. Conclusions The high expression level of clusterin in prostate cancer indicates that clusterin may play an important role in the biological characteristics of prostate cancer through the antiapoptosis pathway.

Objective To study the expression of dihydrodiol dehydrogenase (DD) in prostate cancer and its significance. Methods With reference to expression of ?-actin gene,the expression level of a human dihydrodiol dehydrogenase isoform (DD2) mRNA was examined in prostate cancer tissues (11 cases) and normal prostate tissues (10 cases) by reverse transcriptive-polymerase chain reaction(RT-PCR). Quantitative determination of relevant band densities was performed using densitometry-scanning techniques. Results Strong expression of DD2 mRNA was detected in prostate cancer tissures with absorbance in the range of 0.550 to 1.018 (median,0.726),and low expression of DD2 mRNA in normal prostate tissues with absorbance in the range of 0.248 to 0.420 (median,0.333). The difference of the expression of DD2 mRNA between cancer and normal prostate was significant ( P

Objective To study the effects of XiaoAiping (XAP) with different concentrations and action time on the proliferation and apoptosis of hepatocellular carcinoma cells Hepa1-6. Methods The hepatocellular carcinoma cell line Hepal-6 was treated with XAP at doses of 30 mg/ml(the high concentration group), 20 mg/ml (the moderate concentration group) and 10 mg/ml (the low concentration group) for 24 h, 48 h and 72 h, respectively. The MTT assay was used to detect the inhibitory effects of XAP on cell growth. The cell morphological alteration was observed after HE staining, and the apoptosis rates were assayed by flow cytometry. Results XAP produced an obvious time-and-dose-dependent inhibitory effect on the Hepa1-6 cells (P<0.01), and the cell differentiation trend was benign on light microscopy. After 48 h Hepa1-6 cells were incubated by XAP, there was an apoptosis peak, and the apoptosis rate was increased statistically in XAP group with the increasing XAP concentration [(7.65±0.40)%, (11.26±1.09)% and (26.71±0.85)% in low, moderate and high concentration group, respectively]compared with that in the controls (2.88 ±0.30)%, P < 0.01). Conclusion XAP produced obvious time-and-dose-dependent inhibitory effects on Hepa1-6 cells. Inhibiting DNA synthesize and inducing apoptosis of tumor cells may involve in the mechanisms of antineoplastic effect.

Objective To investigate the prognostic factors of sorafenib treatment in patients with advanced hepatocellular carcinoma (HCC) underwent surgical therapy or transcatheter arterial chemoembolization (TACE).Methods 62 patients with advanced HCC underwent surgical therapy or TACE were post-treated with sorafenib (400mg,bid).The overall survival (OS) and progress-free survival (PFS) were evaluated by Kaplan-Meier method.Results There were 30 patients in surgical group and 32 patients in TACE group.The median OS in surgical group and TACE group were 12.2 and 5.7 months (P =0.019) and the median PFS were 16.7 and 10.6 months (P =0.033),respectively.The liver cancer volume / liver volume ＞50 ％ and Child-Pugh classification were independent risk factors for PFS in surgical group,the Child-Pugh classification and vascular invasion were independent risk factors for OS in surgical group.Conclusion The patients' PFS and OS in surgical group by oral sorafenib are better than those of patients in TACE group.The effective ways to prolong the PFS include decreasing volume of liver cancer and the better liver function.

Objective To explore the efficacy of trazodone replacement treatment on benzodiazepine drugs dependence and effect of cognitive function on senile patients.Methods 51 senile patients with benzodiazepine drugs dependence were assigned with dosage tacho-decrement and replaced by trazodone.The patients were discontinuanced taking benzodiazepine in 14 days and taken at a draught of trazodone before retiring about 6 months.Clinical effect and side effects were assessed with the Pittsburgh sleep quality index (PSQJ) and treatment emergent symptom scale(TESS) before and after treatment.Cognitive function was evaluated with Wechsler intelligence scale for adult-Chinese revised (WAIS-RC) and Wechsler mermory scale for adult-Chinese revised ( WMS-RC ) once before and after treatment.Results The scores total PSQJ( ( 13.17 ± 3.70),( 11.05 ± 3.48 ) ),the sleep quality( (2.36 ± 0.33 ),( 1.91 ± 0.29 ) ),daily function disorder,sleep disorder were significantly lower than before treatment while the other factor scores were not significantly changed.Trazodone wes effective without severe side effects and dependence.The study group showed significantly lower scores in learning,calculation,the signs of figure,wood puzzles,long-term memory,short-term memory,immediate memory,memory quotient in the assessment of cognitive function than after treatmemt (P ＜ 0.05 ).Conclusion Trazodone is an ideal medicine to senile insomnia.

Background Retinal hemorrhage in newborns is a common clinical finding,and serious retinal henorrhage resulting in poor prognosis.The factors affecting retinal henorrhage in newborns are unelucidated now.Identifying these factors is helpful for the early prevention and treatment.Objective This study was to explore the underlying maternal,obstetric,and neonatal clinical factors for degree of retinal hemorrhages in healthy full-term newborns.Methods A cross-sectional study was performed in the approval of Ethic Committee of Zhongshan City People's Hospital.A total of 1 311 full-term infants,with gestational age more than 37 weeks and Apgar ≥9 scores were included in this study.Infants with severe systemic diseases or any other eye diseases were excluded.Ocular fundus of the infants were examined with Ret Cam Ⅲ within 4 days of birth and were independently identified by 2 eye doctors.The newborns of retinal hemorrhage were divided into grade Ⅰ,Ⅱ and Ⅲ groups based on Egge criteria,and the infants without retinal hemarrhage served as the normal control group.Maternal,obstetric,neonatal parameters and general factors were analyzed and compared among different groups,and the risk factors that affected the newborns retinal hemorrhage were analyzed by logistic regression analysis.Results Retinal hemorrhage was seen in 28.30％ infants (371/1 311),and 152,116 and 103 infants were identified as grade Ⅰ,Ⅱ and Ⅲ,with the percentage of 11.59％,8.85％ and 7.86％,respectively.Among the factors that examined in the study,cord around fetal neck was the risk factor of aggravation of degree of retinal hemorrhage in newborns (OR =1.308,95％ CI:1.011-1.693,P =0.041).In the mode of delivery,spontaneous vaginal delivery appeared to be the positive factor of the incidence of retinal hemorrhage (OR=0.134,95％ CI:0.132-0.137,P＜0.001),but cesarean section was not a main risk factor.Conclusions Spontaneous vaginal delivery and cord around fetal neck are the potential risk factors for the aggravation of degree of retinal hemorrhage in full-term infants.Accordingly,infants with these risk factors should be paid more attention to prevent the progression of retinal hemorrhage.

BACKGROUND: To repair bone defect, histocompatibility, growing characteristics, biodegradation and repairing mechanism of nanometer need to be further studied in clinic. OBJECTIVE: To observe the growing characteristics and histocompatibility of nano-hydroxyapatite (Nano-HA) for repairing jaw defect of rabbits.DESIGN: Randomized grouping animal study.SETTING: Beijing Jishuitan Hospital and Stomatology College of Jiamusi University.MATERIALS: A total of 24 New Zealand rabbits, either gender, weighing 2.5-3.5 kg, were provided by Animal Experimental Center of Jiamusi University. The animal experiment had got confirmed consent from local ethic committee. Nano-HA was provided by Material Engineering College of Jiamusi University and dealt with routine hyperthermia/hypertension sterilization. In addition, hydroxyapatite was provided by Wuhan Industry University, and the diameter was 1.0-2.0 μm.METHODS: The experiment was carried out in the Experimental Animal Center of Jiamusi University from November 2001 to May 2006. All rabbits were randomly divided into experimental group and control group with 12 in each group. Bone defect in the diameter of 1.0 cm was produced on body of mandible. Nano-HA was used to repair the bone defect of rabbits in the experimental group, while hydroxyapatite was used to repair the bone defect of rabbits in the control group. At 1, 4, 8 and 12 weeks after operation, all rabbits were sacrificed. In addition, medical imaging analysis system was used to analyze generative quantity of tissue in the two groups; meanwhile, histological quality and quantity were also analyzed so as to observe histocompatibility and newborn osteogenesis. MAIN OUTCOME MEASURES: Histocompatibility and newborn osteogenesis.RESULTS: With the time passing by, the amount of repairing materials was decreased because of the combination with newborn tissue into bone in bone defect-repaired region in the experimental group. When it was closed to normal bone, the amount was stable. However, bony callus was not able to grow in materials in the control group. Results of correlation analysis demonstrated that materials were negatively straight-line correlation with newborn bone (r = -0.912 0, P < 0.01). During the repairing procedure of bone defect, newborn bone was closely correlative with Nano-HA; while, with the increase of newborn bone, the amount of repairing materials was decreased because of the combination with newborn tissue into bone.CONCLUSION: Nano-HA can combine with newborn bone tissue so as to rapidly generate bone, while it has an excellent biocompatibility.

Objective To explore the association of CD40 gene single nucleotide polymorphisms (SNPs) and haplotypes with the susceptibility to systemic lupus erythematosus (SLE),as well as the association of serum levels and genotypes of CD40 with the occurrence of SLE.Methods A multiplex PCR single-base extension assay (PCR-SBE) and DNA sequencing were performed to analyze 4 SNPs of the CD40 gene,including rs1883832 C/T,rs13040307 C/T,rs752118 C/T and rs3765459 G/A,in 205 patients with SLE (SLE group) and 220 healthy human controls (control group).Enzyme-linked immunosorbent assay (ELISA) was conducted to measure serum levels of CD40 in these subjects.Results Compared with the control group,the SLE group showed significantly increased serum levels of CD40 (P ＜ 0.05).There were significant differences in genotype and allele frequencies of the SNP rs1883832 C/T in the CD40 gene between the SLE group and control group (all P＜ 0.01).Relative risk analysis showed that the risk of developing SLE in rs1883832 T allele carriers was 1.517 times that in rs1883832 C allele carriers (OR =1.517,95％ CI:1.157-1.990,P=0.003).Moreover,serum levels of CD40 were significantly higher in rs1883832 T allele carriers than in rs1883832 C allele carriers (P ＜ 0.01).The risk of developing SLE was significantly increased in TCCA haplotype carriers compared with the healthy controls (OR =2.322,95％ CI:1.181-4.564,P=0.012).Conclusion The CD40 gene rs1883832 C/T polymorphism and its TCCA haplotype were both associated with the occurrence of SLE,and the rs1883832 T allele may be a gene predisposing to SLE.

AIM:To investigate the effect of Shenci capsule combined with cisplatin ( DDP) in reversing DDP resistance by PI3K/AKT/mTOR signaling pathway in nude mice bearing A 549/DDP tumor.METHODS:The patient-de-rived lung adenocarcinoma A 549/DDP cell xenograft model was established .The tumor-bearing nude mice were randomly divided into control group , Shenci capsule group , DDP group and Shenci capsule combined with DDP group .The mice in control group was treated with normal saline , while the mice in other groups were treated with different drugs for 21 d.After treatment, the mice were killed and lung cancer tissues were collected .Flow cytometry was used to analyze the cell cycle and apoptosis.FQ-PCR was used to determined the mRNA levels of PTEN , P-glycoprotein, PI3K, AKT and mTOR in A549/DDP lung tumor .RESULTS:Compared with control group , the cell proliferation in all the drug treatment groups was inhibited .Compared with other drug treatment groups , Shenci capsule combined with DDP blocked the cell cycle of A 549/DDP cells at G2/M phase, promoted the apoptosis rate , increased the mRNA expression of PTEN and inhibited the mRNA expression of P-glycoprotein, PI3K, AKT and mTOR.CONCLUSION:Shenci capsule increases the sensitivity of A 549/DDP resistant cells in nude mice to DDP by blocking PI 3K/AKT/mTOR signaling pathway , increasing the expression of PTEN or inhibiting P-glycoprotein-mediated resistance pathway .

Objective To discuss the correlation between the VEGF-C/D expressions in tumor associated macrophage (TAM) and lymph node metastasis in colon cancer. Methods Forty-five colon cancer samples proven pathologically to be adenocarcinoma were stained by immunohistochemical method for VEGF-C/D and CD68. The correlation of VEGF-C/D expressions, macrophage counting and lymph node metastasis were analyzed statistically. Results The expressions of VEGF-C/D were detected in TAMs. VEGF-C expression was obviously higher in the samples with lymphatic metastasis. VEGF-C expression in colon cancer was related to the number of TAMs. Conclusion TAMs are important in the lymph node metastasis, because they can express VEGF-C/D and affect the lymphangiogenesis of colon cancer.