This article analyses and summarizes the clinical maintenance work of Elekta Precise Linac in five years.Afer the further research on its performances and errors,a better way is found to solve the main problem of clinical electronic linac,i.e.the way to reduce the Stop Rate of Linac in Radiotherapy.

The risk factors of traffic crash include drinking/drunk drive, accident proneness, fatigue driving, speeding, and poor vehicle quality. This article introduces the protection, emergency treatment, and basic scientific research of road traffic injury (RTI). As a public health issue, RTI is preventable, and personal factor is a key problem. It is important to establish an accurate and comprehensive RTI database, which may provide necessary information for the epidemiological research and crash prevention. The author also gives some suggestions on road traffic safety development in our country.
Accidents, Traffic ; prevention & control ; Databases, Factual ; Epidemiologic Research Design ; Humans ; Wounds and Injuries ; prevention & control ; therapy

Carcinoma, Hepatocellular ; surgery ; Hepatectomy ; Humans ; Liver Neoplasms ; surgery

Accidents, Traffic ; prevention & control ; Global Health ; Humans ; World Health Organization

Objective To study the pharmacological action and clinical application of flavonoids.MethodsThe pharmacological effects of flavonoids were analyzed, and the related literatures were searched and analyzed.This paper describes the pharmacological action mechanism and clinical application of flavonoids, analyzes its biological activity, combined with the related structure and function, and gives a more detailed description of the study of flavonoids.ResultsAfter analysis, the pharmacological effects of flavonoids on human cardiovascular system, digestive system, nervous system, immune system, and so on have a certain impact.The effect of flavonoids on the nervous system is mainly manifested in the analgesic, anti-inhibition and anti-aging.The antibacterial and antiviral effects of flavonoids are mainly antibacterial, antiviral activity and anti HIV activity.Flavonoids have good protective effects on liver injury, such as chemical liver injury, alcoholic liver injury, immunological liver injury, reperfusion liver injury and so on.Flavonoids can inhibit the growth and reproduction of tumor cells, and can promote the expression of tumor suppressor genes and promote the proliferation of tumor cells.The chemical structure of flavonoids is similar to that of estrogen, which is a kind of isoflavone, which has the physiological action of estrogen, and has a certain effect on estrogen.ConclusionThe flavone is extracted from various plants, belonging to the polyphenol compounds, with certain biological activity, were analyzed for the clinical application of its pharmacological action, has many applications of anti-inflammatory, anti-tumor, immunoregulation and liver protection and analgesic, a variety of biological activity, is widely applied in clinical.

This paper discusses the problem of the periods of Medical Ethics. The writers suggest that Medical Ethics should be distingwished three periods: Medical Ethics, Biomedical Ethics and Bioethics.

Objective:To confirm the analogue of Somatostatin OCT and NC 8 12 on the colon tumor cell growth in vitro and vivo.Methods:(1)Two colon cancer cell lines HCT116,LOVO of which cell proliferation was measured with MTT were treated with different analogue of Somatostatin in vitro.(2)The nude mice were implanted s.c.with colon cancer cell line HCT116,then were injected s.c. with OCT and NC 8 12.Results:(1).Cell proliferation of HCT116 induced by Insulin was obviously inhibited by OCT or NC 8 12 at 10 -8 mol/L 24h later after the cells were incubated with them.(2)The nude mice bearing xenografts of colon cancer HCT116 were treated for 21days subcontinuously with OCT?NC 8 12?g/(kg.d)],the inhibitory effect was seen obviously.,the inhibitory effect was seen obviously.Conclusion:The Somatostatin analogues OCT and NC 8 12 can inhibit the proliferation of colon cancer cells in vitro and vivo directly.

AIM: To analyse the effect of Guipi Granule and serum that contains drug on rat's liver. METHODS: Isolated rat's liver perfusion model was used in the experiment for determining AST and ALT content. RESULTS: Middle and low concentration of Guipi Granule (2.5、5.0g/L) didn't cause any chang of enzyme AST、ALT content in isolated rat's liver perfusion liquid. The effect of serum was not different from Guipi Granule groups and control groups. CONCLUSION: The result shows that Guipi Granule doesn't cause damage to the liver cell.

Objective To investigate the clinical effects of fast track surgery ( FTS ) in perioperative nursing care of laparoscopic cholecystectomy . Methods A total of 200 cases of laparoscopic cholecystectomy between January and December 2012 were randomly divided into two groups , with 100 cases of each group , receiving either FTS or conventional treatment .Comparison of the two groups in patients rehabilitation and complications were observed . Results The postoperative anal flatus time was significantly shorter in the FTS group (12.0 ±4.4) h than that in the control group (24.9 ±5.4) h (t=-18.519, P=0.000).The postoperative hospital stay was significantly shorter in the FTS group (3.2 ±1.3) d than that in the control group (4.2 ±2.1) d (t=-4.049, P=0.000).The patients’ weight loss at the 5 postoperative day was significantly less in the FTS group (3.2 ±0.3) kg than that in the control group (5.2 ±0.6) kg (t=-29.814, P=0.000). Conclusion FTS measures applied in laparoscopic cholecystectomy can significantly accelerate postoperative rehabilitation .