Objective To establish HPLC method for the determination of the content of caffeic acid in Chanhou Tieshijin. Methods The determination was performed on HangBang C18 column (200 mm?4.6 mm, 5 ?m). The mobile phase was methanol-buffer phosphate (23∶77) at a flow rate of 1.0 mL/min. The UV detection wavelength was set at 323 nm and the sample size was 10 ?L. Results The linear range of caffeic acid was 0.052～0.26 ?g (r=0.999 8), with average recovery rate of 97.44% (RSD=0.78%). Conclusion The established method is simple, rapid and accurate, and suitable for the quality control of Chanhou Tieshijin.

Digestive tract reconstruction is the main part of gastrointestinal surgery. With the rapid development of technology and widely application in stapling device, more and more surgeons are using stapled anastomosis. Stapled anastomosis is associated with shorter operating time and hospital stay than hand-sewn anastomosis. However, it is not easy to select suitable ones from various staplers and use them correctly. Choice and reasonable application of staplers for anastomosis in gastrointestinal surgery are summarized and evaluated in this article.
Anastomosis, Surgical ; instrumentation ; Digestive System Surgical Procedures ; instrumentation ; Humans ; Surgical Staplers

This paper summarizes the experiences of nursing care for children patients with Pavlik harness in the treatment of developmental hip dysplasia. Nurses attended to the children immediately after the diagnosis was identified. Cooperating with orthopedic surgeon,nursing care mainly focused on family health education,follow-up and guidance on how to prevent the leg from the position of over abduction,as well as guidance on daily life,skin care and positions being holded. As a result,43 children achieved stable reposition with Pavlik harness while 4 cases changed to manipulation reposition integrated with casting whose femoral head had not reduced to the acetabulum. No femoral head necrosis and limb contracture happened except 3 cases suffered from slight skin damage.

Point-of-care testing ( POCT ) is a new area in the laboratory medicine.This article discusses the current situation in regulations , industry management , quality management , personnel management and training and other aspects of POCT in America and China.Then this article points out the challenges of POCT development in China , and further puts forward advanced measures and suggestions for improving POCT management system in China.

Objective　To investigate the expression of glial fibrillary acidic protein (GFAP) gene and its significance in the process of glioma cell differentiation induced by nordihydroguaiaretic acid (NDGA). Methods　Immunohistochemistry (IHC) and in situ hybridization were used to detect the expression changes of GFAP protein and GFAP mRNA qualitatively and quantitatively. Results　The expression levels of GFAP protein and GFAP mRNA in NDGA treatment group were significantly increased compared with the control group (P<0.01). Conclusion　NDGA could induce GFAP gene in malignant glioma cells and the up-regulation of this gene expression might be one of the mechanisms by which NDGA induces glioma differentiation.

ObjectiveTo observe the effects of free fatty aids (FFAs) on the apoptosis and migration of human breast cancer cells ( MDA-MB-231 ).MethodsBreast cancer cells were exposed to oleic acid (OA) and palmitic acid (PA) with different concentrations (50,200,and 500 umol/L).Quantity RT-PCR was conducted to detect mRNA expression of PTEN,and Western blot to detect protein expression of PTEN and Bcl-2.Cell apoptosis was measured with TUNEL method,and migration measured with transwell method.ResultsThe mRNA and protein expressions of PTEN in MDA-MB-231 cells were down-regulated after OA stimulation,but up-regulated after PA stimulation ( all P ＜ 0.05 ).The protein expression of Bcl-2 increased after OA stimulation and decreased after PA stimulation ( both P ＜ 0.05 ).PA increased the apoptosis,and both OA and PA enhanced the invasion of MDA-MB-231 cells.ConclusionsPA may promote apoptosis of MDA-MB-231 cells through changing the expression of the tumor suppressor PTEN,but also increases the invasion of the cancer cells.The invasion of cancer cells could be enhanced by OA stimulation as well.

Objective To develop a method for determining cyanogen chloride (CNCl) in drinking water. Methods Pyridine-barbituric acid spectrophotometry was employed and some parameters including the pH value of the phosphate buffer, the time of color reaction, temperature, the concentration of chloramine T, the proportion of the phosphate buffer, the proportion of color agent and the maximum absorption wavelength were optimized. The linear range, limit of detection, precision and recovery rate were studied. Results Trace quantity of CNCl obeyed the Law of Beer. In the range of 0-0.1 ?g/ml CN-, the correlation coefficient was 0.999 4, the regression equation was y=0.194x-0.033, the limit of detection was 0.003 ?g/L, the lower limit of detection was 0.01 mg/L, the relative standard deviations were 1.5%-6.2% and the recovery rates were 92.9%-107.1%. Conclusion The method has the characters of accurate, sensitive, simple and rapid, it can be used in monitoring of drinking water quality.

Purpose:To study the clinical characteristics and therapy of acquired fungemia in acute leukemia patients. Methods:Retrospective analysis of the clinical characteristics and therapy of 34 acquired fungemia patients from 127 acute leukemia patients was done. Results:52 fungus strains were isolated from the blood culture of 34 acquired fungemia patients. Monilia was the main pathogen (92.4%). 24 fungemia patients also had bacteremia and the percentage was (70.6%). The overall mortality rate was 55.7% .The mortality rate of fungemia and fungemia together with bacteremia were (23.5%) and 76.4% respectively. The effective rates were 70.8% for diflucan treated group, 66.7% for the liposome treated group, and 75% for the combined treatment group respectively. Conclusions:Fungus infection has been one of the main causes of death in acute leukemia patients. So timely monitoring of the fungus infection and appropriate antifungal therapy have become the principle management to reduce the incidence rate and mortality rate of fungemia in acute leukemia patients. Diflucan and liposome are still effective antifungal drugs.

Stroke is one of the major diseases that threaten human health, early diagnosis and treatment are very important for stroke. Carotid intima-media thickness (CIMT) is measured noninvasively to diagnosis stroke, and it is a independent predictor for stroke because its thickening can timely predict the incidence and development of stroke. As an important predictor of cardiovascular disease, more and more attention is played on CIMT. In this review, we will make a summary on the important role of CIMT in stroke and the mechanisms of carotid intima-media thickening in stroke as well as the potential use of traditional Chinese medicine in treating carotid intima-media thickening.
Animals ; Carotid Arteries ; drug effects ; physiopathology ; Carotid Intima-Media Thickness ; Drugs, Chinese Herbal ; therapeutic use ; Humans ; Stroke ; diagnosis ; drug therapy ; physiopathology

The changes in the contents of free amino acids in hemolymph of Anopheles stephenst were determined by automatic amino acid analyzer.The changes in hemolymph protein were determined by ultraviolet absorption method.Free amino acids in hemolymph of infected mosquitoes were compared with those in noninfected mosquitoes.At 4 days after blood meal,6 kinds of amino acids decreased markedly,and 5 kinds of amino acids increased markedly; at 7 days after blood meal,4 kinds of amino decreased markedly,while 7 kinds of amino accids increased markedly; at 11 days after cids blood meal,9 kinds of amino acids decreased markedly,and 4 kinds of amino acids increased remarkably.The protein concentration of infected mosquitoes was higher than that of noninfected ones.