Animals ; Apoptosis ; Bone Neoplasms ; metabolism ; pathology ; Breast Neoplasms ; metabolism ; pathology ; Cell Proliferation ; Chondrosarcoma ; metabolism ; pathology ; Colorectal Neoplasms ; metabolism ; pathology ; Female ; Humans ; Male ; Ovarian Neoplasms ; metabolism ; pathology ; Prostatic Neoplasms ; metabolism ; pathology ; RNA, Messenger ; metabolism ; SOX9 Transcription Factor ; biosynthesis ; genetics ; physiology

Objective To evaluate the effectiveness of intern doctor training by 360 degree evaluation scale and to provide references for formulating targeted training plan. Methods A 360-degree evaluation scale with 6 subscales(Attendings, Peers, Nurse, Patients, Directors and Students) was employed to measure the status quo of medical education , represented by professional ethics and communication skills, among 129 intern doctors in medical clinical college. Cronbach's alpha was used to evaluate the reliability of the scale,one-way ANOVA was used to compare the difference of score among different scorers,and t test and Mann-Whitney test were employed to compare scores be-tween male group and female group, 5-year class and 8-year class (The significance level was set at P<0.05). Results Cronbach' α coefficients were 0.878, 0.948, 0.914, 0.908, and 0.934 for six sub-scales and 0.964 for the general scale. There were significant differences in evaluation scale scores a-mong differ-ent evaluators(P<0.01). After being adjusted by weight index, the average scores of pro-fessional ethics and communication ability & interpersonal relationship were ( 92 . 52 ± 8 . 09 ) and (93.32±8.67) respectively. No differences was observed between male and female, 5-year class and 8-year class(P>0.05). Conclusions 360 degree evaluation scale has reasonable reliability and it can provide valuable references for future similar survey in China. Meanwhile, intern doctors exhibit rela-tively good performances in professional ethics and communication ability & interpersonal relationship in the present study.

Objective To investigate cerebral MRI characteristics of patients with eclampsia. Methods A retrospective study was conducted on 15 cases of eclampsia and items reviewed cover all data concerning clinical features,cerebral MRI findings and results of follow-up survey.Results All of these patients had clinical symptoms of.blurred vision,headache,seizure,hypertension,proteinuria and edema of lower extremity.As for the characteristics of imaging,13 cases had only abnormal symmetric signals in parieto-occipital lobes,frontal lobe and basal ganglia were involved in 2 cases,and temporal lobe was involved in 1 case.The signals of lesions in DWI were isointense or hypointense,however they were hyperintense in ADC map.Two cases had hyperintense signals in DWI.All the patients recovered well,and all brain lesions disappeared during follow up.Conclusion The most important imaging of eclampsia is vasogenic edema with a good prognosis.

Objective To explore the role of NF-kB activation on spontaneous formation of germinal centers in spleen in BXSB mice and it's mechanisms.Methods Eighteen BXSB mice were divided to control group and pyrrolidine dithiocarbonate(PDTC)group randomly.PDTC group was given PDTC 120 mg/kg?BW ip every other day and control group was given the same dose of dissolving solution.NF-kB activity was deter- mined by electrophoretic mobility shift assay.Two color flow cytometry were used to detect CD154 expression on splenic B cells and germinal center B cells apoptosis.Germinal centers were stained for histochemical analysis.Results PDTC could inhibit the NF-kB activity in spleen tissue in BXSB mice.It decreased the NF-kB activity by 62.82%.Spontaneous germinal center formation was detected in spleen in BXSB mice.In- hibiting NF-KB activation could down-regulate CD154 expression on splenic B cell,retard spontaneous germi- nal center formation and increase germinal center B cell apoptosis.Conclusion NF-kB activation may induce spontaneous germinal center formation in spleen in BXSB mice by upregulating CD154 expression on splenic B cell and decreasing germinal center B cell apoptosis.The autoreactive B cells generated during spontaneous germinal center formation may escape apoptosis and then differentiate to autoantibody-producing plasm cells.It suggests that NF-kB can be a therapeutic target.

OBJECTIVETo study the protective effect of an extract of Guipi Pill () against radiation-induced damage.

METHODSA total of 100 Kunming mice were randomly divided into normal group, model group, positive drug group (treated with radioprotective agent "523", 5 mg/kg at 24 h before irradiation) and two treatment groups, with 20 mice in each group. The extract of water extraction-alcohol precipitation (WAP) from Guipi Pill were administered orally to the mice in the two treatment groups at the dose of 500 and 1,000 mg/kg, respectively, for 6 days prior to whole body radiation (8 Gy). Fifty mice with 10 in each group were used to observe the survival rate 30 days after radiation. The other 50 mice with 10 in each group were sacrificed on day 10 after radiation (6 Gy) in order to take blood, liver and unilateral femur.

RESULTSPretreatment prior to irradiation with WAP resulted in a significantly higher 30-day survival rate of mice after exposure to a potentially lethal dose of 8-Gy radiation. WAP could significantly increase the total white blood cell count and DNA content of bone marrow, and it also increased the activity of various antioxidant enzymes, such as superoxide dismutase, catalase, total antioxidant capacity and glutathione peroxidase in liver tissue of mice, which were reduced by radiation treatment. Maleic dialdehyde level and bone marrow micronucleus rate were significantly reduced by WAP, which were increased after 6-Gy radiation.

CONCLUSIONWAP of Guipi Pill could increase the 30-day survival rate and the antioxidant capacity as well as protect bone marrow in mice. WAP of Guipi Pill is an effective radioprotective agent.

Animals ; Antioxidants ; metabolism ; Bone Marrow ; pathology ; Chemical Precipitation ; DNA ; metabolism ; Drugs, Chinese Herbal ; therapeutic use ; Leukocyte Count ; Liver ; metabolism ; pathology ; radiation effects ; Male ; Mice ; Micronuclei, Chromosome-Defective ; Phytotherapy ; Plant Extracts ; pharmacology ; therapeutic use ; Protective Agents ; pharmacology ; therapeutic use ; Radiation Injuries, Experimental ; blood ; drug therapy ; prevention & control ; Survival Analysis ; Water

Adult ; Diagnosis, Differential ; Female ; Humans ; Pancreas ; abnormalities ; Steatorrhea ; etiology

OBJECTIVETo explore the best methods and skill for the removal of difficult and high risk tracheobronchial foreign body under bronchoscope.

METHODSA retrospective review was performed between August 1995 to August 2012. There were 4217 children with tracheobronchial foreign body, among them, 272 were diagnosed as high-risk, highly difficult tracheobronchial foreign bodies confirmed by clinical manifestations, foreign body type and bronchoscopy.

RESULTSIn 271 children, the tracheobronchial foreign body was removed under bronchoscope, the success rate was 99.6%; only one child with a pen cap blocking the left lower lobe bronchus was transferred to the department of thoracic surgery, and the foreign body was finally removed by thoracotomy. Eighty-five children (among them, 82 children were under 1 year of age) had II-II degree laryngeal obstruction, the emergency surgery was performed to remove the foreign body and to relieve the laryngeal obstruction. Twenty-six children had lung infection and 27 children had failed foreign body removal surgery before, in all these children, the foreign body was removed after infection control. There were 17 children with the pen cap as the tracheobronchial foreign body, direct removal was successful in 12 children with the history less than two weeks; in 4 children, the foreign body was removed after 0.1% epinephrine saline flush, and 1 case with the homemade bronchial foreign body hook remove. There were 26 children with the whistle as the foreign body, and 32 children had large and sharp foreign bodies. In these cases, the foreign bodies were removed together with the bronchoscope. Forty-two children had multiple or fragile foreign bodies, and 16 children had subsegmental bronchial foreign bodies. In these cases, the foreign bodies were removed with forceps under direct vision and intraoperative bronchial lavage.In This series, 129 children received intraoperative bronchial lavage, among them, 127 children showed normal X-ray changes one week after operation. Two children with a history of more than 1 month complicated with pulmonary consolidation. After bronchial lavage, pneumothorax and subcutaneous emphysema occurred, which recovered after treatment. No glottic edema, asphyxia, and other complications were found, the complication rate of surgery was 0.7%.

CONCLUSIONFor the removal of highly difficult and high risk tracheobronchial foreign bodies, preoperative analysis and discussion should be sufficient, appropriate surgical skill and surgical instruments may improve the success rate of the surgery and prevent the operation complications.

Adolescent ; Bronchi ; Bronchoscopy ; methods ; Child ; Child, Preschool ; Female ; Foreign Bodies ; surgery ; Humans ; Infant ; Male ; Retrospective Studies ; Trachea

OBJECTIVETo investigate whether the polymorphisms of matrix metalloproteinase-2 (MMP-2) and -9 (MMP-9) promoters contribute to the development and progression of colorectal cancer in Chinese population.

METHODSthe PCR-based denaturing high-performance liquid chromatography or PCR-restriction fragment length polymorphism technique respectively was applied to analyze the MMP-2 -1306C/T and MMP-9 -1562C/T polymorphisms in normal group (126 individuals) and colorectal cancer group (126 cases). Genotype frequencies were compared between patients and matched controls, and the association of genotypes with clinical-pathological parameters was studied.

RESULTSThe frequency of the CC genotype in the MMP-2 gene polymorphism was significantly increased in colorectal cancer patients when compared with controls (P<0.05), and individuals with the CC genotype had an increased risk of developing colorectal cancer compared to those with CT+TT genotypes (OR: 1.959; 95%CI: 1.055-3.637). Significant correlation was found between the depth of tumor invasion and MMP-2 -1306C/T polymorphism in colorectal cancer patients. However, the genotype frequencies of MMP-9 -1562C/T in colorectal cancer patients were similar to those in control subjects.

CONCLUSIONOur results indicate that MMP-2 -1306 C/T polymorphism may be associated with genetic susceptibility to colorectal cancer and the invasive capability of colorectal cancer in Chinese patients. And it is easier for the CC genotype cancer to invade through bowel wall.

Adult ; Aged ; Asian Continental Ancestry Group ; genetics ; Colorectal Neoplasms ; genetics ; Female ; Genetic Predisposition to Disease ; Humans ; Male ; Matrix Metalloproteinase 2 ; genetics ; Matrix Metalloproteinase 9 ; genetics ; Middle Aged ; Polymorphism, Genetic ; Statistics as Topic

OBJECTIVESTo investigate the prognostic significance of Omi/HtrA2 expression, and the correlation between Omi/HtrA2 and Hypoxia-inducible factor (HIF)-1α in primary hepatocellular carcinoma cells.

METHODSThe expression of HIF-1α and Omi/HtrA2 in 43 cases of hepatic carcinoma tissues were detected immunohistochemically. Follow-up data were obtained to perform the Kaplan-Meier survival analysis. The change of Omi/HtrA2 expression in HepG2 cell was measured after HIF-1α expression of HepG2 in vitro was regulated by Tet-on expression system.

RESULTSOmi/HtrA2 expression was correlated with lymph node metastasis and recurring within liver during 2 years. Statistical analysis estimation showed the cumulative survival rate of post-hepatectomy for the patients with the positive expression of Omi/HtrA2 was higher than that for other patients with the negative expression of Omi/HtrA2 (χ(2) = 6.13, P = 0.013). In the common paraffin-embedded specimen of hepatocellular carcinoma, most of the samples showing negative or weak positive HIF-1α immunopositivity showed moderate positive or strong positive Omi/HtrA2 immunopositivity, while most of the samples showing moderate positive or strong positive HIF-1α immunopositivity showed negative or weak positive Omi/HtrA2 immunopositivity. The mRNA expression intensity of Omi/HtrA2 was decreasing with the HIF-1α expression increasing, and the difference was statistically significant(F = 106.766, P < 0.01).

CONCLUSIONSOmi/HtrA2 may be an important prognostic marker for primary hepatocellular carcinoma. Omi/HtrA2 expression is reversely correlated with HIF-1α expression in hepatocellular carcinoma. During the apoptotic process Omi/HtrA2 participating in hepatocellular carcinoma cells, HIF-1α is involved in the controlling and regulating of Omi/HtrA2 expression.

Adolescent ; Adult ; Aged ; Carcinoma, Hepatocellular ; metabolism ; pathology ; Female ; Follow-Up Studies ; Hep G2 Cells ; High-Temperature Requirement A Serine Peptidase 2 ; Humans ; Hypoxia-Inducible Factor 1, alpha Subunit ; genetics ; metabolism ; Liver Neoplasms ; metabolism ; pathology ; Male ; Middle Aged ; Mitochondrial Proteins ; metabolism ; Neoplasm Recurrence, Local ; metabolism ; pathology ; Prognosis ; Serine Endopeptidases ; metabolism ; Transfection ; Tumor Cells, Cultured ; Young Adult

In order to analyze the temporal distribution characteristics of human rabies in China and explore the incidence forecasting,R3.3.2 software were used to establish the optimal ARIMA model of monthly incidences from 2004 to 2015 in Chi-na.Then the monthly incidences from January to November 2016 were forecasted with the model and the prediction accuracy was evaluated.The annual incidences of human rabies in China were decreasing tendency since 2007,and the monthly incidence reached highly during August to October.The optimal model was ARIMA(2,1,1)(2,0,0)12and the mean absolute error (MASE)was 0.755.The mean relative error was 15.61% when predicting the incidences from January to November 2016.In conclusion,there exists seasonal variation for human rabies in China and ARIMA model can be applied for the short-term fore-casting.