Cardiovascular Diseases ; diagnosis ; Cardiovascular System ; China ; Diagnostic Imaging ; Humans

This study is to investigate the transportation of scutellarin in cell and live models and study on mechanism of absorption and transport of scutellarin in mouse liver. The concentration of scutellarin in plasma and liver from control and pretreated groups was determined by high performance liquid chromatography. The uptake of scutellarin was examined in control hepatocytes group, induced hepatocytes group and induced hepatocytes plus pravastatin group. Pravastatin can affect the pharmacokinetics of scutellarin in mouse: CL is decreased while AUC is increased. The scutellarin absorption of hepatocyte induced group was higher than that of control group, but was decreased in the group with pravastatin added. The research showed that there was potential drug interaction between pravastatin and scutellarin. The drugs may compete for oatp2 mediated transport pathway consisted in the uptake of scutellarin in liver.

Adolescent ; Angiography ; Arteries ; Child ; Coronary Vessel Anomalies ; diagnostic imaging ; Evaluation Studies as Topic ; Female ; Fistula ; diagnostic imaging ; Humans ; Male ; Middle Aged

Objective To evaluate the role of angiocadiography(ACG)in the diagnosis and management of complex/complicated congenital heart disease(CHD).Methods A retrospective study of ACG findings in 360 cases with complex/complicated CHD was performed with a comparision to that of echocardiography(Echo)and related clinical examination.Results The present series of CHD cases included pulmonary atresia with ventricular septal defect in 75 cases,double outlet of right ventricle in 62 cases,Fallot's tetralogy in 60 cases,single ventricle in 52 cases,transposition of the great arteries in 42 cases,tricuspid valve atresia in 15 cases,coronary abnormality in 6 cases,total abnormal pulmonary venous connection in 5 cases,total endocardial cushion defect in 5 cases,persistent truncus arteriosus in 4 cases,pulmonary atresia with normal ventricular septum in 3 cases,other disorders in 7 cases,and postsurgical operation in 24 cases.ACG was superior to that of Echo in demonstrating the abnormalities of systemic,pulmonary,and coronary arteries and their branches of complex/complicated CHD as well as measuring the pressure of pulmonary artery,vein,and systemic-pulmonary collateral vessels.Conclusion In the diagnosis and differential diagnosis of knotty cases with complex and complicated CHD,particularly in the demonstration of full view of systemic,pulmonary,and coronary arterial branches and accurate measurement of pulmonary arterial pressure/resistance,and atrial,ventricular,and systemic arterial pressure,ACG(including DSA)still plays an important and irreplaceable role.

OBJECTIVE:To provide references for improving the quality of clinical trial of new drug (phase I-IV),guaranteeing participants' interests and enhancing the core competitive power of drug clinical trial institutions. METHODS: The advantages of both the guiding principle of Good Clinical Practice(GCP) and the quality standards of ISO/IEC17025:2005 were applied throughout the quality control process of clinical drug trial. RESULTS & CONCLUSIONS: To establish quality management and supervision system in China that is in line with the international norm and national condition by combining GCP principle with the quality standards of ISO/IEC17025 is conducive to the improvement of the quality of clinical drug trial and enhancement of the core competitive power of drug clinical trial institutions in China.

AIM: To explore the protein levels of chemokine receptor 7 (CCR7) and vascular endothelial growth factor ( VEGF)-C in breast carcinoma , and to investigate the effects of CCR 7 and VEGF-C on prognosis of breast carcinoma.METHODS:The protein expression levels of CCR 7 and VEGF-C in the breast carcinoma tissues and normal breast tissues were detected by the method of immunohistochemistry .At the same time, the relationship between clinico-pathologic characteristics and the protein expression of CCR 7 and VEGF-C in the breast carcinoma tissues was analyzed . The relationship between the protein expression of CCR 7 and VEGF-C and survival time of the breast cancer patients was estimated by Kaplan-Meier method.RESULTS:The positive expression rates of CCR 7 and VEGF-C in the breast carcino-ma tissues were significantly higher than those in the normal breast tissues (P<0.01).A positive correlation was observed between the protein expression of CCR7 and the protein expression of VEGF-C in the breast carcinoma tissues (r=0.613, P<0.01).The protein expression of CCR7 and VEGF-C was correlated with lymph node metastasis and TNM stage (P<0.05), but both were not related to patients ’ age, primary tumor size, estrogen receptor and progesterone receptor .The survival time of the patients with CCR 7 and VEGF-C positive expression was significantly shorter than that of the patients without the expression (P<0.05).CONCLUSION:The positive expression of CCR7 and VEGF-C proteins is associated with the prognosis of breast cancer , and combined detection of CCR 7 and VEGF-C protein expression levels may be helpful to judge the prognosis of breast cancer .

Deafness ; therapy ; Hearing Loss, Noise-Induced ; therapy ; Humans ; Hyperbaric Oxygenation ; Noise, Occupational ; adverse effects ; Occupational Diseases ; therapy ; Occupational Exposure ; adverse effects ; Rubber

ObjectiveTo optimize the extraction technology of the active component,rosmarinic acid,an ester of caffeic acid and 3,4-dihydroxyphenyllactic acid,in perilla oil meal for the first time by a new homogenizing technology called smashing tissue extraction (STE).MethodsOrthogonal design was used to optimize the extraction condition.The content of rosmarinic acid was quantified from the methanol crude extract with the help of HPLC.ResultsThe optimization of STE process to get rosmarinic acid from the perilla oil meal was the ratio of liquid to solid material at 10∶1 and the power of extraction at 150 V,extracting twice (2 min for each time).ConclusionSTE could be applied to extracting the active ingredients from the oil meals due to its high extraction efficiency.This new homogenizing technology has advantages on saving extraction time,raising extraction efficiency,and maintaining the temperature sensitive constituents.

Purpose To investigate the expression of mTOR in breast cancer, and to observe the effect of CCI-779 on proliferation and apoptosis of MDA-MB-231 cell. Methods Immunohistochemical staining was used to detect the expression of mTOR protein in breast cancer tissue and MDA-MB-231 cell. MTT method was used to show effect of CCI-779 on proliferation of MDA-MB-231 cell. Annex-inV-FITC/PI method was used to show effect of CCI-779 on apoptosis of MDA-MB-231 cell. Results 54.9% in 71 cases of breast cancer tissue could express mTOR protein, the expression was significantly higher than in 32 cases of normal tissue (21.9%), mTOR protein was also detected in MDA-MB-231 cell, CCI-779 could inhibit the proliferation of MDA-MB-231 cell, and show a dose-and time-dependent, but CCI-779 could not induce apoptosis of MDA-MB-231 with AnnexinV-FITC/PI assay. Conclusion mTOR is closely related to the formation of breast cancer, CCI-779 has strong activity against MDA-MB-231 cell, it has prospect for treatment of breast cancer in the future.

Objective To assess the usefulness video-assisted mediastinoscopy (VM) for diagnosis of disease characteristic with mediastinal mass. Analyze the correlations of clinical features of the disease with the pathologic diagnosis. Methods Between July 2000 and March 2006, 97 undiagnosed patients with mediastinal mass in chest radiography underwent biopsy of mediastinal lesions by either cervical mediastinoscopy (n=69) or parasternal mediastionoscopy (n=28). We also analyzed the correlation of symptoms, location and extent of the lesion with the pathologic diagnosis. Results All 97 patients recovered smoothly without postoperative complications. Histologic diagnosis was obtained in 96 patients. Patients with hoarse, dysphagia and superior vena cava obstruction syndrome indicate malignant lesions (26/26). The most common diseases in the super-anterior mediastinum are lymphoma(7/19), thymoma(4/19) and small cell lung cancer(SCLC) (4/19);The most common disease in the middle mediastinum are metastasis of non small cell lung cancer(11/37), sarcoidosis (9/37)and SCLC(7/37); The most possible disease involved both mediastinum and lung hilar lymph-node are scalerdosis(32/41) and SCLC(5/41). Conclusion Mediastinoscopy is effective and safe methods to establish a histologic diagnosis in patients with mediastinal mass. It is possible to make primary evaluation on some of these patients according to the typical symptoms and location, extent of the mass involvement.