OBJECTIVE:To evaluate the performance of merger and acquisition (M&A) of listed pharmaceutical companies over 3 years from 2000 to 2002. METHODS: Based on the financial data of the listed companies in 26 cases, a data envelopment analysis was performed to compare and evaluate the efficiency of the companies before and after M&A. RESULTS: The efficiency was reduced in the first 3 years after M&A, but increased started from the fourth year. CONCLUSIONS: M&A did not promote the efficiency of listed pharmaceutical companies.

Objective To determine the roles and underlying molecular mechanism of MicroRNA-203 on the migration of human hypo-pharyngeal carcinoma cells. Methods The potential MicroRNA-203 target genes were searched by bioinformatic miRNA target prediction tools and KEGG database,and a large number of candidates was identified. The MEKK1 was selected for further investigation. This gene is known to play a role in tumor metastasis. The MicroRNA-203’s binding sites in MEKK1’s mRNA 3’UTR were analyzed by luciferase report-er assays. Nextly,the protein expression of MEKK1 in Fadu-Lv-MicroRNA-203 cells was determined by Western blot assay. The regulation of MEKK1’s mRNA expression by MicroRNA-203 was analyzed by qRT-PCR. Transwell cell migration assays were performed to confirm the im-pact of MicroRNA-203 on hypopharyngeal carcinoma metastasis. Results The expression level of endogenous MicroRNA-203 was negatively correlated with the mRNA and protein expression levels of MEKK1 in hypopharyngeal carcinoma cells. Transwell migration assay results showed that MicroRNA-203 overexpression inhibited hypopharyngeal carcinoma cell migration ability. Furtherly,MEKK1 can promote hypo-pharyngeal carcinoma cell migration ability. Conclusion MEKK1 is a direct target of MicroRNA-203. MicroRNA-203 plays a role in hypo-pharyngeal carcinoma cell migration ability through MEKK1.

Bunyaviridae Infections ; pathology ; Fever ; virology ; Humans ; Leukopenia ; virology ; Orthobunyavirus ; classification ; pathogenicity ; Thrombocytopenia ; virology

Child ; Cough ; etiology ; therapy ; Female ; Humans ; Mental Disorders ; complications ; Psychotherapy

Objective　To investigate the expression of glial fibrillary acidic protein (GFAP) gene and its significance in the process of glioma cell differentiation induced by nordihydroguaiaretic acid (NDGA). Methods　Immunohistochemistry (IHC) and in situ hybridization were used to detect the expression changes of GFAP protein and GFAP mRNA qualitatively and quantitatively. Results　The expression levels of GFAP protein and GFAP mRNA in NDGA treatment group were significantly increased compared with the control group (P<0.01). Conclusion　NDGA could induce GFAP gene in malignant glioma cells and the up-regulation of this gene expression might be one of the mechanisms by which NDGA induces glioma differentiation.

Objective To compare the efficacy of endoscopic mucosal resection(EMR)and endoscopic submucosal dissection(ESD)on early esophageal cancer and precancerous lesions whose diameter between 2 cm and 3 cm.Methods The clinical data of 77 patients with early esophageal cancer and precancerous lesions who had accepted endoscopic treatment were retrospectively analyzed.The diameter of lesions in both groups were between 2 cm and 3 cm.There were 37 patients with 42 lesions accepted EMR (EMR group),40 patients with 41 lesions accepted ESD(ESD group).The effectiveness of two endoscopic treatment methods was analyzed,by observing the bleeding,perforation,the incidence of postoperative esophageal stenosis and recurrence.Results The bleeding,perforation rates were 7.1％ (3/42),0 respectively in EMR group,which were lower than those in ESD group [24.4％(10/41),17.1％(7/41)],and the differences were statistically significant(P ＜ 0.05 or ＜ 0.01).The incidence of esophageal stenosis between two groups showed no significant difference(P ＞ 0.05).The recurrence rate in EMR group was 14.3％(6/42),which was significantly higher than that in ESD group(0),and the difference between two groups was statistically significant(P＜ 0.05).Conclusions The effect of ESD for treating early esophageal cancer and precancerous lesions whose diameter between 2 cm and 3 cm is much better than EMR.But ESD has the risk of bleeding and perforation.Both of them in the postoperative esophageal stenosis have no significant difference.

Objective:With the development of the medical model, huge changes have also occurred in current nursing practice. This study focused on the evaluation of "excellent nurses" working in hospital. Also, the study also aimed to examine differences among doctors, nurses and patients in their ratings. Methods: 630 doctors, 660 nurses, 552 patients completed an evaluation questionnaire for rating excellent nurses. Results: The questionnaire contained items reflecting important characteristics pertaining excellent nurses. Conclusion:There were significant differences between doctors, nurses, and patients in their ratings of excellent nurses.

Aim To analyze the expression of phosphatidylethanolamine-binding protein(PEBP) and ERK in critical brain regions of psychological dependence rats.Methods Morphine-induced rats conditioned place preference(CPP) model was established to mimic different stages of morphine psychological dependence, during which PEBP expression and ERK activity were assayed in different brain regions.Results PEBP expression in hippocampus, prefrontal cortex, striatum and nucleus accumbens showed no change at three stages of psychological dependence.However, ERK activity increased notably in prefrontal cortex on CPP formation, and decreased remarkably in hippocampus on CPP reinstatement.Conclusions The formation and retrieval of associated memory between morphine effects and environment involve different neural circuits, in which ERK activity is critical, and PEBP might not be involved in such a memory-related ERK regulation.

As the head transplant program“Heaven Surgery” was put forward, there was birth to many bioethi-cal confusion, clinical-medical ethical confusion and other questions of ethical confusion. Face with various ethi-cal confusions, clinician need rational return of humanism, and the public need pay more attention to the essence of life and the concept of life and death.

0.05) ; whereas it was seen in CNE-2Z-H5-9. Anti-PAI-1 antibody did not inhibit the heterogeneous adhesion and invsion of CNE-2Z-H5-9. Conclusions:PAI-1 maybe inhibit the metastasis and invasion of NPC.