Objective To assess the effect of miR-141 on proliferation of human oral squamous cell carcinoma and target relationship between miR-141 and EphA2 .Methods pcDNATM6.2-GW-pre-miR-141 was constructed and identified by qRT-PCR.EphA2-WT and EphA2-MT sequences were respectively cloned into pmirGLO plasmid . The potential proliferation function of miR-141 on CAL27 cells was analyzed by MTT .The target relationship be-tween miR-141 and EphA2 was identified by Dual-Luciferase Assay System , qRT-PCR and Western blot .Results We constructed successfully the recombinant plasmids , including pcDNATM6.2-GW-pre-miR-141, pmirGLO-E-phA2-WT and pmirGLO-EphA2-MT, and the transfection efficiency of pre-miR-141 was increased in CAL27 cells compared to control group(P<0.001).miR-141 could suppress the proliferation of CAL27 cells(P<0.05). Furthermore, a significant reduction of luciferase activities of CAL27 cells co-transfected with pre-miR-141 and EphA2-WT(P<0.001).The mRNA(P<0.001) and protein expression levels of EphA2 were decreased in CAL27 cells transfected with pre-miR-141 .Conclusions Overexpression of miR-141 may suppress cell prolifera-tion by targeting at EphA2 in CAL27 cells.

LabVIEW is applied to the realization of virtual oscilloscope, and such functions are fulfilled as waveform display, parameter measurement, filter, spectral analysis, data storage and playback.

Objective: To analyze the trends of female breast cancer incidence and mortality in Beijing, Shanghai, Linzhou and Qidong in China between 1988 and 2007. Methods: The data of female breast cancer incidence and mortality and the data of corresponding population during 1988-2007 were collected from four eligible cancer registries which could provide complete sets of historical data. The pooled analysis and time-trend analysis of the data were performed. Results: During 1988-2007, the APCs (annual percent changes) of age-standardized incidence rates (by China's population in 1982) of female breast cancer in Beijing, Shanghai, Linzhou and Qidong were 2.49%, 2.55%, 7.04% and 4.16%, respectively. Although the average annual growth of APC of age-standardized mortality was 4.10% in Linzhou, there were no significant changes in Beijing, Shanghai and Qidong. Conclusion: During 1988-2007, the breast cancer incidence and mortality of the urban women in Beijing and Shanghai were significantly higher than those of the rural women in Linzhou and Qidong. The incidence rate of female breast cancer in these four areas showed an obvious rising trend, and this increase was more significant in rural areas. The mortality rate of female breast cancer in Linzhou also showed a rising trend, but the mortality rates in the other three areas remained steady. Copyright © 2012 by TUMOR.

Objective: To describe the incidence and mortality of female breast cancer in China during 2003-2007. Methods: The incidence and mortality data of female breast cancer and the corresponding population data from 32 eligible cancer registries in China during 2003-2007 were collected and analyzed. Results: The combined crude incidence rate of female breast cancer during 2003-2007 was 41.64 per 100 000, which was the highest among female cancer incidence rates. The combined crude mortality rate of female breast cancer was 9.63 per 100 000, which was ranked as the sixth among the mortality rates of all female cancers. The incidence rate was 3.04 times higher and the mortality rate was 1.92 times higher in urban areas than those in rural areas. Compared to the incidence and mortality rates of 184 regions provided from GLABOCAN 2008 database, the female breast cancer incidence in China was ranked as the one hundred and tenth, and the mortality was ranked as the one hundred and seventy-second. Conclusion: Breast cancer has been becoming one of the most common cancers among Chinese women. The incidence and mortality rates of female breast cancer in urban areas are significantly higher than those in rural areas, although the overall incidence and mortality rates of breast cancer in Chinese women are still at a medium or low level in the world. © 2012 by Tumor.

Objective:To analyze gene mutations in 3 families with self-improving collodion ichthyosis.Methods:Clinical data were collected from 3 patients with self-improving collodion ichthyosis. DNA was extracted from the peripheral blood of patients and their parents, and high-throughput sequencing was performed in the patients by using a multi-gene panel targeting congenital ichthyosis. After identification of causative gene loci, Sanger sequencing was performed to bidirectionally verify the mutations in the patients and their parents.Results:All the 3 patients presented with a collodion-like membrane at birth, which was shed within 2-4 weeks after birth, and then they gradually showed similar features of mild ichthyosis, including dry skin, tiny scales at local sites, flexural involvement, mild sweating, heat intolerance, cheek flushing, mild palmoplantar keratosis or palmar hyperlinearity. Compound heterozygous mutations were identified in the ALOX12B gene of the 3 patients, including a paternal mutation c.406_408delGAG and a maternal mutation c.77T>C in case 1, a paternal mutation c.1013C>T and a maternal mutation c.1286C>G in case 2, a paternal mutation c.1232T>C and a maternal mutation c.1440C>A in case 3. Function prediction analysis showed that 4 missense mutations c.77T>C, c.1286C>G, c.1013C>T, c.1232T>C and 1 deletion mutation c.406_408delGAG may exert pathogenic effect, and 1 nonsense mutation c.1440C>A led to the generation of a termination codon encoding a truncated protein p.Tyr480Ter, which may affect the protein function and cause disease. None of the 6 mutation sites had been reported in the past.Conclusion:Compound heterozygous pathogenic mutations were identified in the ALOX12B gene of the 3 patients with self-improving collodion ichthyosis, which were inherited from their parents.

Objective To explore the relationship between big-five personality,and public mood of volunteers,and to find out the moderator effect of justice sensitivity.Methods A total of 1 022 volunteers were investigated.The Big-Five Inventory (BFI),Public Mood Scale (PMS),Justice Sensitivity Inventory (JSI) were applied to all subjects.Results The average score was (19.77±4.49) for extraversion,(26.69± 4.13) for agreeableness,(23.33±5.37) for conscientiousness,(12.49±4.91) for neuroticism,(24.95±5.44)for openness,(8.78±3.23) for positive public mood,(3.46±3.06) for negative public mood and correlated with (26.85± 10.55) for observer sensitivity.The extraversion,agreeableness,conscientiousness and openness were correlated with positive public mood(β=0.31,P＜0.01;β=0.25,P＜0.01;β=0.29,P＜0.01;β=0.26,P＜0.0 1),and negatively correlated with public mood (β=-0.14,P＜0.01;β=-0.29,P＜0.01;β=-0.20,P＜0.01;β=-0.08,P＜0.01).Neuroticism was negatively correlated with positive public mood (β=-0.27,P＜0.01),and positively correlated with negative public mood (β=0.31,P＜0.01).The interaction effect of agreeableness and observer sensitivity negatively correlated with positive public mood,negative public mood (β=-0.09,P＜0.01;β=-0.07,P＜0.05).The interaction effect of neuroticism and observer sensitivity was positively correlated with positive public mood (β=0.08,P＜0.01).Conclusion Observer sensitivity plays a regulative role between big-five personality and mental health,and can slow the negative impact of low agreeableness to positive public mood,strengthen the impact of low agreeableness to negative public mood,and slow the negative impact of high neuroticism to positive public mood.

Adult ; Aged ; Bone Plates ; Female ; Fracture Fixation, Internal ; methods ; Humans ; Joint Dislocations ; surgery ; Male ; Middle Aged ; Sternoclavicular Joint ; injuries ; surgery

BACKGROUND: Many scholars attempt to xenotransplantation because of shortage of human donor hepatocytes. In the field of hepatocyte xenotransplantation, two different mammalian species, i.e., pig-to-rat, and pig-to-rodent, are much reported. Hepatocyte transplantation between two different classes has been rarely reported. OBJECTIVE: To investigate the mechanisms of cell-mediated immune response in hepatocytes xenotransplantation between tilapia and rat. METHODS: The tilapia (donor) hepatocytes were isolated by collagenase cold digestion and adjusted to 2×107 /mL using physiological saline. Thirty-six SD (recipient) rats were randomly divided into transplantation and control groups (n = 18). Rats from the control group received injection of physiological saline into the spleen, and those from the transplantation group received injection of tilapia hepatocytes. At each time point (4 hours, 8 hours, 24 hours, 3 days, and 5 days) after transplantation, two rats were respectively sacrificed for histological changes examination using hematoxylin-eosin staining and detection of CD4+/CD8+ lymphocytes surrounding the grafts using immunohistochemical SABC method. RESULTS AND CONCLUSION: The transplanted hepatocytes were rejected a few hours after transplantation. Surviving hepatocytes in spleens were hardly seen 8 hours after transplantation. The aggregation of CD4+CD8+ lymphocytes was detected surrounding the grafts 4 hours after transplantation. These findings suggest that tilapia hepatocytes transplantation into rat spleen induces rejection within a few hours, cell-mediated immune response is involved in the rejection of hepatocytes xenotransplantation, and natural killer cells may play an important role in this kind of rejection.

Objective To investigate the clinical manifesfations and diagnostic and therapeutic features of cholangiocarcinoma associated with hepatolithiasis.Methods The clinical data, the diagnotic and therapeutic featares of 54 cases of cholangiocacinoma associated with hepatolithiasis were retrospectively analyzed.Results The occurrence rate of hepatolithiasis concomitant with hepatocholangiocarcinoma was 11.8%.Due to a lack of specific clinical manifestations, the preoperative diagnosis of this condition was difficult. In this series, the (correct) diagnotic rate of hepatocholangiocarcinoma before operation was only 11.1%. The radical resection rate was 51.8%. Radical resection of the tumor had a better prognosis than that of non-resection of tumor.(Conclusions) Patients with long-term recurrent hepatolithiasis tended to have associated cholangiocarcinoma. Early diagnosis of the disease was difficult, and the treatment results and prognosis were poor. Therefore, (patients) with hepatolithiasis, espesially those with recurrent attacks, should undergo operation early. In cases diagnosed as hepatic cholangioearcinoma at operation, a radical resection should be performed, if possible, and a favorable outcome may be attained.

Objective To study the impact of earlier tracheotomy on the prevention and treatment of pulmonary infection for the patients with severe head injury.Methods The 68 patients with severe head injury(experimental group) received tracheotomy within 24h after emergency cerebrotomy,controlled by 68 patients(control group) who didn't receive tracheotomy within 24h after emergency cerebrotomy.The third generation cephalosporin and semi-benzylpenicillin were used to prevent infection in all the patients.The patients who had lung infection were taken sputum cultivation test to choose sensitive medicine for the treatment.Results A total of 68 patients occurred pneumonia.There were 35 patients occurred pneumonia in the experimental group and 20 patients were cured.The time of infection control was 4～11d(averaged 7.1 d).There were 53 patients occurred pneumonia in control group, and 21 of them were cured.The time of infection control was 9～21d(averaged 16.9 d).The rate of lung infection and the time of infection were significantly lower in the experimental group than those of the control group(P