0.05. All arose in the pelvis. 5 year′s survival rate in group Ⅰ was (53.2?1.9)% and (67.3?1.6)% in group Ⅱ, P

BACKGROUND: From yiyiren oil is extracted kanglaite injection that has been extensively used against lung cancer for its function against cancer. It is revealed that kanglaite injection inhibits many strains of cancer cells including LA795 metastatic lung cancer. Genechip is used here for detection of metastasis reactive differentially expressed genes in mice that carry LA795 metastatic lung cancer.OBJECTIVE: To detect the metastasis reactive diferentially expressed genes with genechip technology in metastatic cancer carrying mice that treated with y iyiren oil injection(kanglaite injection).DESIGN: It was a controlled trial with mice as subjects.SETTING: Oncology Department of Xiyuan Hospital Affiliated to China Academy of Traditional Chinese Medicine.MATERIALS: The trial was conducted from February through August 2003. Forty mice were implanted with T739 strain lung adenocarcinoma cells and were randomly and averagely assigned into 2 groups.METHODS: mRNA probe was made from cancer sample of the mice. ScanArray 3000 scanner was used to scan the fluorescence signal in cDNA expression genechip that contained 4096 mouse genes in order to detect the differentially expressed genes.MAIN OUTCOME MEASURES: The differentially expressed genes in the two groups of mice.RESULTS: The mice genes expressed differentially between the kanglaite injection group and control group. After examination being repeated for 3 times, 27 genes presented different expression; 25 genes expression increased in both groups and 2 genes decreased. Among these differentially expressed genes, 12 genes were of the mouse muscle cDNA. It was also observed that 6 genes might be associated with the occurrence and development of tumor.CONCLUSION: Gene expression spectrum genechip is useful in effectively detect the relevent differentially expressed gene induced by kanglaite injection.

Objective To investigate the clinical characteristics,diagnosis,treatment of endometriosis in adolescent and to improve our knowledge,and to reduce misdiagnosis.Methods Clinical data of 17 patients with endometriosis in adolescents were analyzed retrospectively.Results Preoperative diagnosis is wrong in nine out of 17 cases.All patients underwent surgical operation and post-operative medcine treatment.Five cases have complicated genital tract anomalies.Four cases relapsed,good prognosis is expected in the other patients.Conclusion Clinical characteristics of endometriosis in adolescents are not positive.The treatment involves the surgical operation and medicine.

Objective To construct Hepatitis B Virus (HBV) Chinese-strain wild type and Lamivudine-resistant variant recombinant baculovirus. Methods 1.2-unit length HBV construct (adr serotype, C genotype) was cloned into the multiple cloning region of the pFastBac Ⅰ vector and then transformed into DH10Bac, in which homologous recombination occurred between the pFastBac vector and the inside bacmid with the help of helper plasmid. So HBV recombinant bacmid was produced and transfected into sf9 cells to generate a Recombinant HBV baculovirus called vAcHBVc. The viral titers were detected by immune plaque assay and TCID 50. Lamivudine resistance mutation (YVDD) was introduced by site-directed mutagenesis using continuous PCR. HBV YVDD recombinant baculovirus (vAcHBVcYVDD) was generated and titered as above. Meanwhile, the recombinant HBV baculovirus containing GFP reporter was constructed for evaluating the efficacy of transfection and titration of virus. Results Recombinant wild and YMDD variant HBV baculovirus were successfully developed and the titer was between 10~6～10~8pfu/ml through plaque assay. Conclusion Different kinds of recombinant HBV baculovirus could be generated rapidly and efficiently with Bac to Bac expression system. The developed recombinant HBV baculovirus could be further used in the study of anti-viral resistances.

Objective To study the clinical and pathological features of rectal carcinoid and factors influencing the prognosis.Methods Data of 33 rectal carcinoid patients were analyzed retrospectively. 29 patients were followed up postoperatively. Primary tumors were classified by size (2*!cm) and muscularis invasion respectively.Results The main symptoms were changes in bowel habits(17/33,52%) and hematochezia (14/33, 42%), or rectal mass (14/33,42%), asymptomatic patients were detected during a survey.Only 4(12%) patients had tumors larger than 2 cm and tumors invading muscularis.The 10 year survival rate was 84% for all patients( n =29), and 94% for those with tumors 2*!cm( n =3) died in 5 years( P = 1 0?10 -9 ) and only one out of the 4 with muscularis invasion lived longer than 5 years( P =1 2?10 -5 ).Conclusions Most rectum carcinoid are at early stage suitable for local excision.

Objective To analyze the viral dynamics and clinical significance during the antiviral treatment by a mathematical model.Methods Six chronic hepatitis B patients were evaluated with a kinetic model(Neumann model)during dose of 0.5 mg/d oral entecavir.Blood samples were drawn for HBV DNA measurement at week 0,2,4,12,24.Non-linear modeling was used to fit individual patient data.Results The median effectiveness in blocking viral production was 99.970%(n=6).The median half-life of viral turn-over was 1.6 d(n=6).The median half-life of infected hepatocytes was 21.3 d(n=5).Compared with the other patients,the c(virions are cleared at a rate)、ε(effectiveness)、δ(infected cell are lost at a rate)value of one patient(eg.6)were all lower and the half-life of virus and infected cells were higher,and eg.6 developed viral break-through after 38 weeks of follow-up.Conclusions Viral load decay showed a biphasic pattern during entecavir therapy which can be described with a mathematical model.The model relates processes of viral infection and replication as well as drug efficacy to model parameters.It indicates the prediction of bio-mathematical model during antiviral treatment.

Objective To clarify the effects of sedation with propofol on pro/anti-inflammatory cytokines balance in severe sepsis patients resulted from intra-abdominal infection.Methods Fifteen patients with severe sepsis were randomly divided into two groups,propofol group received intravenous propofol sedation more than 48 hours,and no sedation drug were used in control group,3 volunteers as healthy group.Plasma TNF-?,IL-10 concentrations were measured at admission and 48 hours later,the ratio of TNF-?/IL-10 (T/I) were also calculated.Results Levels of both TNF-?,IL- 10 were significantly elevated in patients compared with healthy group,but no difference between prepofol and control group.The mean load doses of propofol was 0.063 mg/kg and maintained at 0.054 mg/(kg?h).After 48 hours infusion of prepofol,TNF-?,IL-10 decreased significantly compared with admission in propofol group,while no changed in control group.Compared with control group,IL-10 was lower and ratio of T/I was higher in propofol group.Conclusion Sedation with prepofol in severe sepsis patients attenuated the pro-and anti-inflammatory cytokine responses.Moreover, propofol accelerate the shift to Th1.These findings suggest that the influence of sedation drug on immune function must be considered in sepsis patients.

Objective Structured Clinical Examination(OSCE)is a popular and objective clinical examination mode in recent years.Teaching Section of Internal Medicine of the First Clinical College of Harbin Medical University adopts the OSCE assessment approach in the internship phase exam of the clinical overseas students to check the study effect in internal medicine internship and objectively and scientifically evaluates their overall quality through multimedia technology,standardized patient,multi-functional simulation man and other means.

Objective To investigate the utilization of enteral nutrition and parenteral nutrition in an inpatient pharmacy.Method The utilization of enteral nutrition and parenteral nutrition formulations in our inpatient pharmacy from 2008 to 2010 was analyzed in terms of brand,volume,and cost using the defined daily dose method.Results The amount of the brands of enteral nutrition formulations increased from 7 to 9 from 2008 to 2010,with the expenditure increased from RMB 426 489 yuan in 2008 to RMB 673 717 yuan in 2010.The amount of brands of parenteral nutrition formulations increased from 43 in 2008 to 50 in 2010,with the expenditure increased from RMB 8 913 103 yuan in 2008 to RMB 13 637 343 yuan in 2010.Conclusion Parenteral nutrition remains the dominant nutritional mode in our hospital and the utilization of enteral nutrition is still low.

Kisspeptin, the neuropeptide produced by Kiss1 neurons in the hypothalamus, is involved in the neuroendocrine regulation of puberty initiation, reproductive system maturation, ovulation and other processes by influencing the secretion of gonadotropin-releasing hormone. Kiss1 gene expression is regulated by multiple trans-regulatory factors and epigenetics. Prediction and preliminary experiments have shown that the seed sequences of miR-92a-3p and miR-25-3p can directly bind to the 3′-UTR of Kiss1 and inhibit the expression of Kiss1. In order to further study the role of miR-92a-3p and miR-25-3p in the regulation of Kiss1, specific absorptive sponge vectors (sponge-miR-92a and sponge-miR-25) with inhibitory effects on miR-92a-3p and miR-25-3p were constructed to realize the functional loss of miRNA. Flow cytometry and dual luciferase reporter assays both confirmed that both sponge vectors could adsorb exogenous or endogenous target miRNAs very effectively. The sponge-miR-92a and sponge-miR-25 vectors are further packaged into the lentivirus LV-sponge-miR-92a and LV-sponge-miR-25. The results of real-time fluorescence quantitative PCR showed that the expression level of Kiss1 in the hypothalamic primary neurons infected by LV-sponge-miR-92a and LV-sponge-miR-25 was significantly up-regulated (P < 0. 05). After injecting LV-sponge-miR-92a into the hypothalamus, the time of female mouse vulva opening was significantly earlier (P<0. 05). The normal oestrus cycle of female mice with was disrupted by injections of LV-sponge-miR-92a and LV-sponge-miR-25 in the hypothalamus. In conclusion, we successfully constructed sponge vectors capable of effectively adsorbing miR-92a-3p and miR-25-3p, and demonstrated their role in removing the inhibition of miR-92a-3p and miR-25-3p on Kiss1. Hypothalamic sponge injection had a certain effect on both the time of vulva opening and the estrus cycle of female mice, suggesting that miR-92a-3p and miR-25-3p may play an important role in the initiation of puberty and reproductive maturity.