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.

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.

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.

Objective: To find a method of the use and supply of medical equipment for emergency rescue. Methods:In the process of rescue, the equipment department establishs the emergency operation mode and first-aid equipment supply system under the unified leadership of the hospital rescue headquarters. Results: By establishing the emergency operation mode and first-aid equipment supply system, the unified deployment of medical equipments has been implemented. Conclusion: Sudden catastrophic events occur suddenly, injure many people, use the method of centralized supplement of medical equipment, the clinical equipment can be assembled in a short time to guarantee the need of clinical rescue.

10.3969/j.issn.2095-4344.2013.23.017

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.

The construction of campus culture is all-around systemic project with quite abundant content.However,medical morality is indispensable in the construction of campus culture.This article concretely analyzes status of medical morality,expatiates on effect of medical morality in the construction of campus culture.Further,a discussion on the approach of medical morality which combines medical morality and the construction of campus culture is given.

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.

Objective　To evaluate homology of 53 clinical str ains of M. chelonae abscessus subspecies which caused the nosocomial infecti on. Methods　Large restriction fragment (LRF) pattern analysis of genomic DNA by using pulsed-field gel electrophoresis was performed and differences of patterns were compared. Results　53 clinical strains had two types of LRF pat terns. 49 strains had the same one LRF pattern, the rest 4 had another pattern. Conclusions　The nosocomial postoperative M. Chelonae absc essus subspecies outbreak was mainly caused by the same infectious source. So pulsed-field gel electrophoresis was suitable for evaluating strain homolo gy and looking for infectious sourses.