The publication and citation of academic papers are important indexes to evaluate science research level of colleges and institutes and also important index to evaluate researchers. In this paper we calculated and analyzed the number of publications, cited number, and cited frequency of SCI papers in three military medical universities and one military medical research institution from 1997 to 2006, and put forward some opinions and suggestions.

OBJECTIVE: To determine the contents of total flavonoids and quercetin in different parts of Apocynum venetum collected in Songnen grassland and study their antioxidant activities so as to provide references for efficient utilization of the herbal plant.METHODS: Ultrasonic extraction was applied to extract total flavonoids.The content of total flavonoids was determined by chromatometry and the content of quercetin was determined by HPLC.The antioxidant activities of the extracts from different parts of A.venetum were evaluated by determining their abilities in scavenging 1,1-diphenyl-2-picrylhydrazyl(DPPH?) radicals and?OH radicals.RESULTS: The contents of quercetin and total flavonoids were richer in both leaves and flowers of A.venetum than in stems.In addition,the total flavonoids extracted from the leaves and flowers of A.venetum showed higher antioxidant activity than from the stems.CONCLUSION: The leaves,flowers and stems of A.venetum can all be used as raw materials of natural antioxidants.

Mesenchymal stem cells(MSCs) can directly act on tumor cells to inhibit their growth,and could also migrate to the tissue lesions and tumor tissues to transfer and express many kinds of anti-cancer factors.Numerous researches have applied MSCs as carriers of drugs to induce apoptosis,inhibit differentiation of tumor cells and inhibit tumor angiogenesis,and have got outstanding antitumor results.

Through the review on the 2 months visit to College of Nursing of Michigan State University,I'd like to share the ideas with others.The conten of nursing education,clinical nursing,nursing research and patient safety to improve quality of nursing education.

Atherosclerosis is the outcome of polygenic inheritance and interaction of environmental factors.It is one of the important the diseases controlled by the epigenetic laws.DNA methylation is the first discovered and well-studied epigenetic molecular mechanism.There are a variety of ways for the detection of DNA methylation,each has its advantages and disadvantages.The abnormal methylation modification of genomic DNA comprehensive hypomethylation and related candidate genes is closely associated with the occurrence and development of atherosclerosis.This article reviews the related research progress.

Purpose:Balloon catheter dilation was performed in 4 young infants with anas- tomotic esophageal strictures.To discuss the method of balloon dilation and evaluation of successful. Materials and Methods:The 4 cases had an anastomotic stricture after surgical correction of esophageal atresia.Their age range was 2 to 15 months.Each case had a barium esophagram before balloon dilation.The diameter of esophageal stricture ranged from 3 to 6mm.The balloon size from 3 to 15mm in diameter.Results:All of the 4 cases complete resolution of the strictures was achieved after 1 to 4 dilations.There was no esophageal perforation.Conclution:Balloon catheter dilation presented in the paper is a simple,safe and reliable one for the treatment of anastomotic esophageal stricture in young infant as first choice treatment.

In this study,cholesterol content of fresh water fish oil emulsion was determined by gas chromatography. It was 30g/L and was lower than that in other marine fish oil preparations. The regression equation of standard curve was Y=1. 855x-6. 3467 ,and correlation coefficient was 0. 9990. The recovery rate ranged from 84.0% to 97. 0% ,and CV = 7.1%.

The status of bioelectrical impedance measurement especially the multifrequency segmental bioelectrical impedance measurement of liver diseases is introduced.The multifrequency segmental bioelectrical impedance can well rule out the impact from the change of body weight caused by edema and ascites,and can evaluate the volume of ascites.Compared with single frequency bioelectrical impedance,the multi frequency bioelectrical impedance measurements probably display good prospect.It helps to produce objective judgement on nutrition status and energy metabolism for patients with liver diseases.The effect,however,needs further clinical research.

Objective To establish the scoring system for early prediction of multiple organ dysfunction syndrome (MODSE) induced by pulmonary infection in the elderly. Methods A total of 393 inpatients with pulmonary infection, aged 60 years and over, were enrolled in this study and the data of them from January 2001 to December 2006 were analyzed retrospectively. All patients were divided into MODSE group and non-MODSE group. The effects of age, chronic disease and blood test items of healthy examination on the pathogenesis of MODSE were explored. The early prediction indexes which were selected from age, 21 chronic diseases and 15 blood test items of healthy examination were scored to establish the scoring system for early predicting MODSE. Results The age, chronic obstructive pulmonary disease, chronic respiratory failure, pulmonary fibrosis, chronic cardiac insufficiency, cerebrovascular disease, diabetes, chronic renal failure, hemoglobin, albumin,urea nitrogen and fasting blood glucose were selected to establish the scoring system for early predicting MODSE. Conclusions The scoreing system for early predicting MODSE may be used to screen the high risk population of MODSE induced by pulmonary infection, which is valuable in early prediction of MODSE.