Objective To investigate the radiosensitizing effects of cyclooxygenase-2 selective inhibitor LM-1685 on A549 cells in vitro.Methods A549 human lung adenocarcinoma cell line was used in this study.Cell growth kinetics Was determined using MTT assay.Cell survival was analyzed by clonogenic assay.The change of cell cycle Was measured by flow cytometry.Results LM-1685 inhibited the growth of A549 cells,showing a dose-dependent and time-dependent manner.LM-1685(50/μmol/L),either with or without IL-1β,showed the radiosensitizing effects on A549 cells,and the sensitizing enhancement ratio(SER)was 1.12 and 1.06,respectively.LM-1685(50 μmol/L)abrogated radiation-induced G2/M arrest of the tested A549 cells.Conclusions Cyclooxygenase-2 selective inhibitor can enhance the radiosensitivity of A549 cell line.Abrogation of radiation-induced G2/M arrest could be part of the mechanism.

OBJECTIVETo investigate the expression of vascular endothelial growth factor C (VEGF-C) and survivin protein in human gastric carcinoma,and to evaluate their clinical implications.

METHODSThe expressions of VEGF-C and survivin protein in tumor tissues,matched para- tumor tissues from 97 cases with gastric cancer and normal tissues form 20 normal controls,were determined by immunohistochemistry. Their relationships with clinicopathological parameters were analyzed.

RESULTSThe positive rate of VEGF-C and survivin protein in tumor tissues (66.0% and 57.2%) was significantly higher than those in matched para-tumor tissues normal tissues (P< 0.05). There were no significant differences in VEGF-C expression considering tumor size,localization,histological grade,venous invasion,and distant metastasis (P > 0.05), while its expression was correlated with serosal infiltration, lymphatic invasion, lymph node metastasis and TNM stage III-IV (P< 0.05). The survivin expression was significantly related with serosal infiltration,lymphatic invasion, regional lymph node metastasis,distant metastasis, and TNM stage III- IV (P< 0.05), but not with histological grade, localization,venous invasion,and tumor size (P > 0.05). The 1, 3 and 5-year survival rates of the patients with positive VEGF-C or survivin protein were significantly lower than those of the patients with negative VEGF-C or survivin (P< 0.05), respectively. In additional,the expression of VEGF-C was positively correlated with survivin expression in gastric carcinoma (P< 0.01).

CONCLUSIONThe expressions of VEGF-C and/or survivin may be indicators for poor prognosis of gastric carcinoma.

Adult ; Aged ; Carcinoma ; metabolism ; pathology ; Female ; Follow-Up Studies ; Humans ; Inhibitor of Apoptosis Proteins ; Male ; Microtubule-Associated Proteins ; biosynthesis ; Middle Aged ; Neoplasm Staging ; Prognosis ; Stomach Neoplasms ; metabolism ; pathology ; Vascular Endothelial Growth Factor C ; metabolism

Objective To assess the efficacy, safety, and tolerability of verapamil as prophylactic therapy for patients withcluster headache, and compare its efficacy with that of prednisone.Methods Prospectively, according to the order of visit, a total of 45 patients with episodic cluster headache or chronic cluster headache were divided into verapamil treatment group (n=23, the odd) and prednisone treatment group (n=22, the even). The seizure frequency, and times of and dosage of using acesodyne were observed in the 2 groups 1 week before treatment, 1 and 2 week after treatment.Results Mean frequency of headache occurrence decreased from 8.78 to 2.52 and 1.35 times,respectively, in the first and second week of treatment in the verapamil group (P=0.000) and from 8.09 to 2.95 and 1.64 times, respectively, at the corresponding time in the prednisone group (P=0.000). Mean abortive agent consumption decreased from 8.09 to 1.65 and 0.48 pills, respectively, in the verapamil group (P=0.000) and from 7.77 to 2.59 and 1.36 pills, respectively, in the prednisone group (P=0.000) in the first and second week of treatment; no significant differences existed in the mean frequency of headache and abortive agent consumption between the 2 groups at the same time point (P＞0.05). The side effects of verapamil were mild, including dizziness, constipation and bradycardia and those ofprednisone were insomnia, increased appetite combined with weight gain and discomfort of abdomen. Conclusion Both verapamil and prednisone prophylaxis therapy for episodic and chronic cluster headache yield significant reduction in headache frequency and abortive agent consumption; choices can be made according to different situations.

OBJECTIVETo investigate the effects of modified vacuum sealing drainage (VSD) technique in treating refractory sinus in the lower leg.

METHODSFrom January 2010 to December 2011, 11 patients with refractory sinus in the lower leg, including 7 males and 4 females, with an average age of 34.5 years (ranged,23 to 56). These patients were treated with modified VSD technique after thorough cleaning sinus and continuous washing. After 14 to 21 days of treatment, removed VSD and re-debrided the sinus and sutured wound.

RESULTSInfections got control after operation, sinus in the lower leg healed. All patients were followed up from 6 to 14 months with an average of 10 months, no recidivations were found.

CONCLUSIONModified VSD technique is an effective method in the treatment of stubborn sinus in the lower leg.

Adult ; Drainage ; methods ; Female ; Fracture Fixation, Internal ; adverse effects ; Humans ; Leg Bones ; injuries ; surgery ; Male ; Middle Aged ; Postoperative Complications ; therapy ; Vacuum

OBJECTIVE: To develop a method to measure trihexyphenidyl, chlorpromazine and clozapine in human blood with GC-MS. METHODS: The specimens were alkalized (pH > 10) and extracted with V (benzene):V(ethyl acetate) = 1:1, and qualitatively analyzed using GC-MS-Full Scan with internal standard SKF525A. The specimens were alkalized (pH > 10) and extracted with V(benzene):V(ethyl acetate) = 1:1, and quantitatively analyzed using GC-MS-SIM with internal standard diazepam-d5. RESULTS: The lowest detection limits of trihexyphenidyl, chlorpromazine and clozapine were 0.3, 0.3 and 0.7 ng/mL (S/N > or = 3) respectively. The calibration curve in 20-10 000 ng/mL showed a good linear distribution. The recovery rate was 79.9% to 85.5%. The RSDs of intraday and interday were less than 5.1%. CONCLUSION The established method was simple, sensitive and accurate for simultaneous determination of trihexyphenidyl, chlorpromazine and clozapine in human blood, and can be applied in forensic toxicological cases.
Adult ; Antipsychotic Agents/poisoning* ; Chlorpromazine/blood* ; Clozapine/blood* ; Female ; Forensic Toxicology ; Gas Chromatography-Mass Spectrometry/methods* ; Humans ; Hydrogen-Ion Concentration ; Male ; Middle Aged ; Reproducibility of Results ; Sensitivity and Specificity ; Solvents/chemistry* ; Trihexyphenidyl/blood*

OBJECTIVETo explore factors related to current prevention and treatment of Advanced cases on schistosomiasis.

METHODSIn-depth interviews were introduced to the qualitative study on 61 Advenced cases of schistosomiasis in Dongting Lake regions. Sampling was accidentally and judgmentally performed.

RESULTSRelated factors on prevention and treatment of Advenced cases of schistosomiasis would include: higher degree of social support for patients (61/61), excessive dependence on the past pattern of schistosomiasis control, lack of the idea that one should be responsible for his/her own health, lack of knowledge about prevention and treatment of schistosomiasis (28/61), older age (57.40 +/- 10.80), lower education (4.70 years), less family income, lack of effective medical insurance system and efficient close-to-client system.

CONCLUSIONActive participation from patients, medical institutions and society was needed to control Late Stage Schistosomiasis. Health education campaign should be intensified to improve the health awareness for schistosomiasis among residents in the heavy endemic areas. Medical insurance system should be set up in epidemic areas, while public health and cure systems for important diseases should be intensified in rural areas. The ability of public health system to be responsive and the accessibility of residents to health service system should be improved in rural areas as well.

Adult ; Aged ; Attitude to Health ; China ; epidemiology ; Female ; Humans ; Male ; Middle Aged ; Rural Health ; Schistosomiasis japonica ; epidemiology ; prevention & control ; therapy ; Socioeconomic Factors ; Surveys and Questionnaires

OBJECTIVETo introduce the experience of diagnosis and surgical treatment of Williams syndrome combined with cardiovascular disease.

METHODSBetween October 1996 and June 2003, 8 patients of Williams syndrome with cardiovascular disease were admitted in Fuwai hospital. Seven patients underwent surgical correction. One didn't undergo surgical procedure. There were 6 male and 2 female ranging from 1.5 to 12.0 years old (medium age 6.4). Three had localized type supravalvular aortic stenosis and 5 diffused type supravalvular aortic stenosis. In them, 2 patients were combined with peripheral pulmonary stenosis. Single patch aortoplasty were performed in 6 cases, and inverted bifurcated patch aortoplasty in one patient.

RESULTSOne patient died and one patient suffered renal insufficiency. In the early postoperative period, the mean speed of flow was reduced to 1.7 m/s from 4.6 m/s, and the mean systolic pressure gradient was reduced from 91 mm Hg to 18 mm Hg. Six patients were followed up 16 to 91 months. There were 5 cases in NYHA function class I, and one in class II.

CONCLUSIONSatisfied result can be achieved in surgical treatment of Williams syndrome with supravalvular aortic stenosis, but it is not in combined with peripheral pulmonary stenosis.

Aortic Stenosis, Supravalvular ; complications ; congenital ; surgery ; Child ; Child, Preschool ; Female ; Follow-Up Studies ; Humans ; Infant ; Male ; Pulmonary Valve Stenosis ; complications ; congenital ; surgery ; Treatment Outcome ; Williams Syndrome ; complications ; surgery

OBJECTIVETo summarize the recent experience of surgical management of the active infective endocarditis (IE) disease in Fuwai Hospital.

METHODSFrom October 1, 1996 to December 31, 2003, 54 patients with active IE underwent heart operation in Fuwai Hospital. There were 41 males, 13 females, with an average age of 35 years old and an average weight 58 kg. Of the cases, 23 had congenital anomalies of the heart, and 1 had rheumatic valvulitis. Streptococci were found in 20 patients, staphylococci in 3, enterococci in 1, enterococcus in 2 and G(+) cocci in 1. Pre-operative cardiac classification (NYHA): class I was in 6 cases, class II in 12 cases, class III in 7 cases and class IV in 29 cases. Systemic embolization occurred in 23 cases and pulmonary infarction in 2 cases. Emergent operations were performed in 27 cases because of heart failure (8 cases), embolism (4 cases), aggressive infection (3 cases), heart failure plus embolism (2 cases), heart failure with aggressive infection (4 cases), aggressive infection with embolism (2 cases) and all the three factors (4 cases). The operations included aortic valve replacement (25 cases), aortic and mitral valves replacement (15 cases), mitral valve replacement (6 cases), mitral valve repair (3 cases), pulmonic valve replacement (1 case) and intracardiac shunt repair (4 cases).

RESULTSThe operative mortality was 17% (5 operative death and 4 lost in following-up after being discharged). All of operative deaths were due to infection. Fourteen patients had operative complications. The morbidity included peri-prosthetic leakage (8 cases), prosthetic IE (5 cases), residual intracardiac shunt (2 cases), complete heart block (2 cases), myocardial infarction, ventricular fibrillation, pulmonary trunk stenosis, and mitral regurgitation (1 case in each). Post-operative cardiac classification (NYHA): class I was in 41 cases, class II in 3 cases, class III in 1 case. Two patients were re-operated because of peri-prosthetic leakage, and then they were cured. Re-operation was also performed in other 3 patients. Unrelated late sudden death occurred in 1 patient and hemiplegia caused by anticoagulant intracranial hemorrhage in another patient.

CONCLUSIONAcceptable results can be achieved with active surgical intervention in active patients with IE.

Adolescent ; Adult ; Aged ; Cardiac Surgical Procedures ; methods ; Child ; Endocarditis, Bacterial ; etiology ; surgery ; Female ; Heart Valve Prosthesis Implantation ; Humans ; Male ; Middle Aged ; Mitral Valve ; surgery ; Retrospective Studies ; Treatment Outcome

Adult ; Female ; Hepatitis ; complications ; diagnostic imaging ; mortality ; Humans ; Infant, Newborn ; Pregnancy ; Pregnancy Complications ; diagnostic imaging ; mortality ; Prognosis ; Ultrasonography

Objective To investigate of the relationship of the immunosuppression induced by Measles virus in adult patients and CD4+ CD25+ regulatory T cell. Methods Thirty-four patients with measles and 27healthy control subjects were included in this study. The whole blood was collected and CD4+ CD25+ cell andFoxP33 cell were analyzed by flow cytometry, and CD4+ CD25- and CD4+CD25+ T lymphocytes were isolated from PBMCs of patients with measles or healthy donors, CD4+ CD25- T cells were cultured in absence or presence of anti-CD3, or BCG, or live attenuated MV. The cell culture supernatant was collected after 72 hours and the concentration of IFN-γ and IL-10 was determined. Results Compared to healthy donors, we observed a reduction of the number of white blood cells and lymphocytes in patients with measles, but there was not significantly different in the frequency of CD4+ CD25+ T cells and CD4+ CD25high T cells with in the total CD4+ population in the blood. Treg from both measles patients and healthy controls significantly inhibited IFN-γ production by CD4+ CD25- T cells in response to anti-CD3 stimulation. Conclusion Induction and expansion of Treg may not represent a mechanism involved in the establishment of immune suppression by MV.