Integrins such as αvβ3, α5β1 play a key role in angiogenesis regulation, invasion and metastasis, inflammation, wound healing, etc. The up-regulation of integrin αvβ3 after cerebral ischemic stroke can promote angiogenesis, which in turn improves functional recovery. In addition, the integrin αvβ3 inhibitor can block the blood-brain barrier (BBB) leakage induced by vascular endothelial growth factor (VEGF) and also can reduce inflammatory reaction, decrease the deposition of fibrinogen. Other studies showed that integrin αvβ3 is not essential in revascularization. Therefore, the effect of integrin αvβ3 in the whole process of brain function recovery merits further study.

Objective To study the role of zymosan in and the effects of total saponin of Panax notoginseng (PNS) on the formation of foam cells originating from peritoneal macrophages. Methods The peritoneal macrophages of mice were cultured with zymosan, PNS and oxidized low density lipoprotein (ox-LDL) for 48 h. The shape of the foam cells was shown with the staining of red oil O dye. The content of total cholesterol (TC) in the foam cells was determined. The concentration of TNF? and IL-1 in the supernatant of the cell culture was measured. Results The TC content and the concentration of TNF-? and IL-1 were significantly higher in the zymosan group than in the PNS group. Conclusion Inflammation can accelerate the formation of foam cells through the pathway of inflammatory cytokines but PNS can reduce the formation with the inhibition of inflammation.

As our country lack professionals of public health,higher demand to the preventive medicine is further made with the transformation of medical model and the construction of the public health system,and the reformation in preventive medicine education of higher learning is explored to cultivate the practical professionals of public health by modulating education program and courses,modifying the cultivating plan,emphasizing the knowledge of liberal arts and management,strengthening the cultivation of ability and combining theory with practice.

The total volatile components were extracted from safflower by ultrasonic-assisted solvent extraction (USE) and their chemical constituents were analyzed by gas chromatographymass spectrometry (GC-MS) to provide scientific basis for the quality control of safflower.Five different solvents (diethyl ether,ethanol,ethyl acetate,dichloromethane and acetone) were used and compared in terms of number of volatile components extracted and the peak areas of these components in TIC.The results showed that USE could be used as an efficient and rapid method for extracting the volatile components from safflower.It also could be found that the number of components in the TIC of ethyl acetate extract was more than that in the TIC of other solvent ones.Meanwhile,the volatile components of safflower from Xinjiang Autonomous Region and Henan Province of China were different in chemical components and relative contents.It could be concluded that both the extraction solvents and geographical origin of safflower are responsible for these differences.The experimental results also indicated that USE/GC-MS is a simple,rapid and effective method to analyze the volatile oil components of safflower.

An inductively coupled plasma mass spectrometry (ICP-MS) or inductively coupled plasma atomic emission spectrometry (ICP-AES) was developed to determine 19 elements in safflower,a traditional Chinese medicinal herb from Xinjiang Autonomous Region and Henan Province of China.Totally 19 elements in safflower included heavy metals,i.e.As,Cd,Cu,Hg and Pb,and wholesome elements,i.e.AI,Ca,Co,Cr,Fe,Mg,Mn,Mo,Ni,P,Se,Sr,V and Zn.The results showed that the concentrations of heavy metals in safflower samples were both low,all of which met the national hygiene standards except for Pb in Xinjiang sample.Meanwhile,the distribution tendency of elements in the two samples was similar,which indicated that the plant might absorb given elements in a proportional way.The method can be used for the quality control of elements in safflower,and it provides a way for the determination of the contents of safflower from Xinjiang and Henan.

Objective To summarize the clinical experience in rigid ureteroscopy for the treatment of acute obstructive renal failure. Methods From June 2005 to April 2008,totally 127 patients with acute obstructive renal failure were treated by rigid ureteroscopy in the emergency of our hospital. Using EWSL or Holmium laser,the calculi were broken into pieces smaller than 2 mm in diameter. Larger pieces were removed with clamps. Double-J stent was indwelled after the operation. Results In this series,2 patients were converted to open surgery because of failure to insert the ureteroscope owning to ureteral stenosis. In the rest of the cases,the ureteroscopy was succeeded in 151 of the 178 sides (84.8%); and the obstruction was released with double-J stent indwelling in 169 sides. The mean operation time was 34 min (16-57 min). During the operation,2 cases developed ureteral perforation and 3 had hypovolemic shock. In 17 cases (18 sides),the calculi moved back into the renal pelvis,and thus received a second EWSL. Totally 65 cases (51.2%,65/127) developed gross hematuria,and were cured spontaneously in 1 to 3 days. Conclusions Rigid ureteroscopy can be the first choice for acute obstructive renal failure,for the procedure is safe and minimally invasive,leading to quick recovery. It is applicable to bilateral ureteral obstruction.

Objective To observe and evaluate clinical therapeutic effect of photodynamic therapy (PDT) on malignant tumor. Methods 20 patients of malignant tumors of different nature and different stages were subjected to PDT or PDT-predominant comprehensive therapy. All the patients were followed-up, and the clinical results were analyzed. Results Among these patients, 3 tumors at early stage showed complete remission (CR), and no relapse was found in the follow-up period. Among the 17 cases with tumors in advanced stage, CR was seen in 9 cases, PR in 8, and 3 patients died of causes other than PDT after 1-6 months of follow-up. Conclusion PDT shows a curative effect on malignant tumors in early stage, and fairly good therapeutic effect on those in advanced stage. It is one of the optional treatments for malignant tumors.

Objective To evaluate the efficacy and side effects of the combination of tocetaxel and cisplatin in the treatment of advanced non-small cell lung cancer (NSCLC). Methods Thirty patients were treated with the combination for two courses. Every three weeks, tocetaxel was administrated on day 1 in a dose of 75mg/m~2 and cisplatin in dose of 30mg/m~2 from day 1 to day 3. Results Complete remission was found in two patients, partial remission in fourteen patients, in seven patients there was no change, and in seven patients there was an advance of the disease. The overall remission rate was 53.3%. The main side effects were suppression of myelopoiesis, gastrointestinal disturbance, alopecia, myalgia and arthralgia. Conclusion The combination of tocetaxel and cisplatin is effective and well-tolerated in the treatment of NSCLC.

The total volatile components were extracted from safflower by ultrasonic-assisted solvent extraction （USE） and their chemical constituents were analyzed by gas chromatographymass spectrometry （GC-MS） to provide scientific basis for the quality control of safflower. Five different solvents （diethyl ether, ethanol, ethyl acetate, dichloromethane and acetone） were used and compared in terms of number of volatile components extracted and the peak areas of these components in TIC. The results showed that USE could be used as an efficient and rapid method for extracting the volatile components from safflower. It also could be found that the number of components in the TIC of ethyl acetate extract was more than that in the TIC of other solvent ones. Meanwhile, the volatile components of safflower from Xinjiang Autonomous Region and Henan Province of China were different in chemical components and relative contents. It could be concluded that both the extraction solvents and geographical origin of safflower are responsible for these differences. The experimental results also indicated that USE/GC-MS is a simple, rapid and effective method to analyze the volatile oil components of safflower.

An inductively coupled plasma mass spectrometry （ICP-MS） or inductively coupled plasma atomic emission spectrometry （ICP-AES） was developed to determine 19 elements in safflower, a traditional Chinese medicinal herb from Xinjiang Autonomous Region and Henan Province of China. Totally 19 elements in safflower included heavy metals, i.e. As, Cd, Cu, Hg and Pb, and wholesome elements, i.e. Al, Ca, Co, Cr, Fe, Mg, Mn, Mo, Ni, P, Se, Sr, V and Zn. The results showed that the concentrations of heavy metals in safflower samples were both low, all of which met the national hygiene standards except for Pb in Xinjiang sample. Meanwhile, the distribution tendency of elements in the two samples was similar, which indicated that the plant might absorb given elements in a proportional way. The method can be used for the quality control of elements in safflower, and it provides a way for the determination of the contents of safflower from Xinjiang and Henan.