Child ; Humans ; Immunoglobulin A ; blood ; Immunoproliferative Small Intestinal Disease ; diagnosis ; drug therapy ; etiology ; Male

OBJECTIVE: To study the effect of valdecoxib and pirarubicina combination on cell cycle and apoptosis of human lung cancer A549 cell line in vitro. METHODS: MTT assay was used to analyze the effect of valdecoxib and pirarubicina on the growth of human lung cancer A549 cell line. The median-effect principle was applied to determine the combination effect of valdecoxib and pirarubicina. Flow cytometry (FCM) was used to observe the cell cycle and apoptosis. The expressions of Bcl-2, Bax, and Caspase-3 were detected by western blotting. RESULTS: The inhibition ratio of A549 cell in valdecoxib and pirarubicina combination group was increased compared with their respective application, and CI<1. In valdecoxib and pirarubicina combination group, the apoptosis rate and the expression of Bax and Caspase-3 was increased, and the expression of Bcl-2 was decresed. CONCLUSION: Valdecoxib and pirarubicina combination has synergistic effect, which is partly due to the increase of the apoptosis rate.

Medical postgraduates are the future core force of clinical diagnosis and treatment,scientific research,education and sanitary administration.Therefore,to cultivate qualified professionals,the key of contemporary medical postgraduate education is to pay more attention to comprehensive quality training in order to make students adapt to the continuous development of society and medical model.The First Clinical College in Wuhan University has implemented the hospital administration internship in combination with social needs and explored the education model of contemporary medical students with comprehensive quality.

OBJECTIVETo compare the difference in clinical efficacy on chronic obstructive pulmonary disease (COPD) at stable stage in the patients among the combined therapy of cutting method and western medication (combined therapy), simple cutting method and simple western medication.

METHODSOne hundred and twenty cases of COPD were randomized into three groups, 40 cases in each one. In the cutting method group, for excessive phlegm pattern/syndrome, Feishu (BL 13), Danzhong (CV 17), Dingchuan (EX-B 1) and Yuji (LU 10) were selected as the main acupoints, and Lieque (LU 7) and Pianli (LI 6) were as the supplementary acupoints. For the pattern/syndrome of failure to consolidate kidney primary, Shenshu (BL 23), Pishu (BL 20), Guanyuan (CV 4) and Yuji (LU 10) were selected as main acupoints, and Jueyinshu (BL 14) and Zusanli (ST 36) were as the supplementary acupoint. Three acupoints were selected alternatively in each treatment and the cutting method was applied once every 10 days. Three treatments made one session. Two sessions of treatment were required. In the western medication group, salbutamol sulfate aerosol, one press (200 μg/press) was used each night, as well as salmeterol xinafoate and fluticasone propionate powder for inhalation, one inhalation each night. The treatment of 1 month made one session. Two sessions were required. In the combined therapy group, the cutting method and western medication were applied in combination. The results of clinical symptom score, lung function test, arterial blood gas analysis, degree of inflation as well as clinical efficacy were observed before and after treatment in each group.

RESULTSExcept the degree of lung inflation, the clinical symptom score, indices of lung function test, partial pressure of arterial blood gas (PaO2) and partial pressure of carbon dioxide (PaCO2) were all obviously improved after treatment as compared with those before treatment in each group (all P<0.05). They were apparently improved after treatment in the combined therapy group and the cutting method group as compared with those in the western medication group (all P<0.05). The total effective rate was 77.5% (31/40) in the combined therapy group and was 75.0% (30/40) in the cutting method group, both better than 60.0% (24/40) in the western medication group (both P<0.05).

CONCLUSIONThe simple cutting method based on syndrome differentiation and the combined therapy with western medication achieve the superior efficacy on COPD at stable stage as compared with the simple western medication. The effect mechanism is possibly related to the improvement of bronchial airway function through constant acupoint stimulation.

Acupuncture Points ; Acupuncture Therapy ; Aged ; Albuterol ; administration & dosage ; analogs & derivatives ; Androstadienes ; administration & dosage ; Combined Modality Therapy ; Female ; Fluticasone ; Humans ; Lung ; physiopathology ; Male ; Middle Aged ; Pulmonary Disease, Chronic Obstructive ; drug therapy ; physiopathology ; therapy ; Salmeterol Xinafoate ; Treatment Outcome

Objective To evaluate the epidemiological characteristics of brucellosis in Jinan, Shandong Province, and to analyze epidemic trend and its cause. Methods Epidemic data of human brucellosis from 2004 to 2007 in Jinan were collected from National Disease Supervision Information Management System. The rose bengal plate agglutination test(RBPT) and standard tube agglutination test(SAT) were employed to detect brucellosis in the serum samples of high-risk exposure groups involved in livestock transaction, slaughter and raising where brucellosis had been outbreak in the last three years, and epidemiological survey was conducted on the confirmed patients in 2007. Results A total of 32 brucellosis cases occurred in 2004-2007 in Jinan, among which 15 cases in 2007, 3.75 times(15/4) of those in 2004. One hundred and seventy-eight blood samples were collected from high risk population, and positive detective rate was 11.24%(20/178). Most of the patients were found in Zhangqiu and in the months from March to September, accounting for 93.33% (14/15). Farmers accounted for 93.33% (14/15) in all cases. Sixty-six point six seven percent(10/15) of the patients were over 50 years old. Male to female was 2.75: 1(11: 4) in ratio. There was a tendency of family aggregation. Two or three cases occurred in each of 3 families. All cases had a contact history with cattle and sheep, and the diagnosis were confirmed between 17-529 days(median being 70 days), in which 86.67%(13/15) of the cases were confirmed by The Centers for Disease Control and Prevention. Conclusions Brucellosis epidemic of Jinan is in an upward trend. Zhangqiu is the main epidemic region. Spring and summer are the prevailing periods, most of the patients are old male farmers were the majority of the patients. It is believed that the epidemic is primarily due to potential infection sources, incompetent quarantine of imported livestock and poor awareness of self-protection among high-risk occupational groups.

Objective To evaluate the epidemiological characteristics of brucellosis in Jinan city and to identify its cause in order to provide evidence for development of specific preventive strategies in the future.Methods Epidemic information of the disease and survey data of brucellosis cases from 2002 to 2008 in the Infectious and Endemic Disease Control Jinan Centre for Disease Control and Prevention were analyzed statistically.Results From 2002 to 2008, 52 cases were diagnosed as brucellosis, among which 39 cases from Zhangqiu city.The incidence rate ranged from 0.02 to 0.10 hundred thousandth from 2002 to 2006, and 0.25 and 0.26 hundred thousandth in 2007 and 2008, respectively. The disease was found each mouth throughout the year, marked with summer peak[38.46%(20/52)]. Patients increased year after year in summer and spring seasons(r = 0.92, P ＜ 0.01) .The disease was most commonly found in 30 - 59 age group[69.23%(36/52)];men women incidence ratio was 1.67: 1.00;farmers accounting for 94.23%(49/52). There were 5 clusters of family outbreak brucellosis, involving 12 cases. Forty five patients contacted with sheep, accounting for 86.54% (45/52). Conclusions Brucellosis epidemic in Jinan is in an upward trend, mainly in summer and spring, elderly and middle-aged men farmers are the majority of patients. Zhangqiu of Jinan city is a key place for prevention and control of brucellosis;source of infection is not completely eliminated, exotic livestock have not been effectively quarantined, practitioners with weak sense of self-protection is the main reason of the epidemic rise.

ObjectiveStromal cell-derived factor -1 (SDF-1 ) is closely related to the biological characteristics of breast cancer. We aimed to explore whether estrogen affected breast cancer by SDF-1. MethodsThe breast cancer cell line MCF-7 and MRC5 were chosen, and divided into three groups: the control group, the estrogen group and the estrogen + estrogen receptor blocker group. Each group was cultured with different physiological concentrations of 17-β estrogen at certain time, and the same alcohol concentration of 17-β estradiol at different time points, and then the enzyme-linked immunosorbent assay (ELISA) was used to measure the concentration of SDF-1 in culture medium, and the semi-quantitative reverse transcriptionpolymerase chain reaction (RT -PCR) was used to detect the expression of SDF-1 mRNA in each group.ResultsSDF-1 can be detected in the culture medium of both MCF-7 and MRC5 cell lines. All different concentrations of 17-β estradiol may increase the secretion of SDF-1 in MCF-7 cells. When adding 17-β estradiol to the concentration of 107mol/L, the secretion of SDF-1 reached the peak in 2 hours, which was 6 times and 2.7 times that of control group ( P ＜ 0.01 ). The effect could be ehminated by pure estrogen receptor ICI182,780. In addition, the mRNA expression of SDF-1 was consistent with the SDF-1 protein levels-l07 mol/L group. The expression of SDF-1 mRNA was higher than both that of the control group and the blocking group in 2 hours (P ＜ 0.05 ). ConclusionsIn some breast cancer cell lines, physiological concentrations of estrogen can increase the secretion of SDF- 1, and this effect is mainly achieved through the estrogen receptor. Estrogen can influence the biological characteristics of breast cancer by SDF-1.

ObjectiveTo evaluate the ability of high resolution magnetic resonance (MR) imaging at 3.0 tesla to depict the characterization of human carotid arterial vessel wall and detect atherosclerotic lesions ex vivo in comparison to histopathologic results. MethodsEighteen carotid arteries obtained from 9 elderly donors underwent fat-suppressed T1 - and T2-weighted MR imaging at 3.0 tesla MR system with a mouse coil. Corresponding histological sections were obtained for the comparison. Correlation between MR images and histopathologic slices was obtained by Pearson or Spearman correlation coefficient.Cohen K was computed to quantify the agreement between MRI and histopathologic findings.Results Lumen area,intima and media area measured on fat-suppressed T2-weighted images showed stronger correlation with the corresponding histopathologic slices [ MRI vs.histopathology:( 27. 53 ± 6. 77 ) mm2 vs.( 25.83 ±6. 69 ) mm2, r2 ＝ 0. 91,P2 ＝ 0. 024, ( 12.31 ± 3. 31 ) mm2 vs.( 12. 28 ± 3.71 ) mm2, r2 ＝ 0. 70, P2 ＝ 0. 020,Median 12. 29 mm2(Min 1.12 mm2, Max 33.18 mm2) vs.Median 11.62 mm2(Min 0.89 mm2, Max 32. 84 mm2 ), r2 ＝ 0. 74, P2 ＝ 0. 016, respectively]. The Cohen K score between the MR imaging and American Heart Association classifications was 0. 74, which corresponds to a good agreement. Conclusions 3.0 T high-resolution multi-sequence MRI can clearly show the structure of ex vivo carotid artery wall and allow quantitative assessment.Fat-suppressed T2Wimaging has a greater advantagein presenting atherosclerotic lesions.