When the reproduction subject maintains his or her own reproduction rights,meanwhile he or she must respect other's corresponding rights,thus to reach the balance of right among different reproduction subjects.This paper calls for strengthening the promotion and education of reproduction responsibility ethics,and constructing the ethical surroundings of "sharing rights and responsibility".

Systemized ethics is the evitable choice of the history development. The rise of systemized ethics is the important change of emphasis on morality construction. The implement of systemized ethics is not only beneficial to organically integrate universality and advance, but also realize the moral-living theory. The exertion of function of systemized ethics depends on the degree of systemized ethics.

The innovation of social structure propels the advent of systemized ethics,which is a unity of objectivity and rationality.The systemized ethics is the foundation of the morality reconstruction,and the main manifestation of modern ethics.It's not only universal applicable,but acceptable also.

The network teaching reformation is a result of the rapid development of internet technology and the creation of constructivism theory.The Webquest form practice of network teaching depends on the careful analysis of network teaching aim,the reasonable design of network teaching content,and the scientific arrangement of network teaching plate.The application of the Webquest form is a useful attempt.It is helpful to improve the comprehensive qualities of medical students.And it is helpful to re-construct the relationship between the teacher and the student.

The abuse and nonstandard use of medical technology lead to various social issues,while the current medical technology assessment is still quite backward.Under these circumstances,it is of urgent need to emphasize the significance of medical technology assessment,strengthen assessment of the social adaptability of medical technology,proceed the whole-range assessment,build an independent review board,and improve the quality of assessment workers.In order to realize the above goals,we should transform government's role-orientation,strengthen the managing function of government,and perfect hospital management system.

Abuse of medical technology is ever more prominent in current medical practice.The rapid development of medical technology brings us a great opportunity to improve the role of moral construction,propel transformation of moral concept,and achieve the harmony between the implemental rationality and value rationality.In order to regulate to the application of medical technology,construction of responsibility ethics as well as ideal education should be strengthened.Both the construction of individual ethics and systemized ethics must be emphasized.The former dynamic mode of management must be changed and construction of medical ethics committee be emphasized so as to systemize and organize the ethical assessment of medical technology.

Guided by the theory of constructivism,we utilize the internet resource to design the teaching of medical ethics under the condition of information,change the traditional teaching method and utilize the new teaching ideas.When teaching knowledge,we also advocate students'ability,attitude and quality.

BACKGROUND: To understand mechanism, biological property and morphological component of nanometer bone material and discuss present status and applied prospect.DATA SOURCES: A computer-based online search of Medline database was undertaken to identify articles about mechanism, biological property and morphological component of nanometer bone material in English from January 1966 to February 2006, and the key works were novel bioactive materials and bone tissue engineering; meanwhile, Chinese relevant articles were retrieved in Chinese in Tsinghua database from January 2001 toOctober 2004, and the key words were nanometer bone and clinical application.STUDY SELECTION: Articles in disposal group and control group were retrieved firstly. Those obviously non-random and repetitive researches were excluded. Full text of the rest articles was looked up finally.DATA EXTRACTION: Tlere were 124 articles about mechanism, biological property and morphological component of nanometer bone material. Among them, 27 experiments or clinical researches were included.DATA SYNTHESIS: Nanometer bone has favorable conductibility and induction of bone; meanwhile, it is characterized by human-like grading structure and multi-well structure of rangu, favorable biocompatibility and stable biodegradation.Nanometer bone material also can be used in confluence of vertebral body, the buccal surgery fields, the gene therapy of uncompleted osteogenesis, rheumatic arthritis (RA) and malignant tumor. Nanometer bone material is tendency to perfection through improvement of technology.CONCLUSION: Nanometer bone material with many particular properties overcomes many difficulties and achieves a satisfactory effect at clinical pilot phase.

Objective:To observe the roles of p50 protein in pathologic responses of cerulein(CR)pancreatitis in mice deficient in p50 protein of NF-?B.Methods:Pancreatitis was induced by i.p.injection of 50?g/kg CR.The express and compensation of p65,p50 and cRel proteins of NF-?B,NF-?B activity were measured using electromobility shift assay;parameters of pancreatitis,eg,amylase,lipase and trypsin were evaluated.The apoptosis,necrosis and caspase-3 activity were observed.Results:p50 knockout(KO)mice had no p50 protein expression and increased p65 and cRel proteins expression.p50 KO mice's NF-?B activity decreased and apoptosis increased in pancreatitis compared with wild type(WT)mice.There was no caspase-3 activition in both mice before and after pancreatitis.All KO mice had an increased necrosis and amylase,lipase,trypsin activity compared with WT mice in pancreatitis.Conclusions:The results indicated that NF-?B p50 genetic deletion might attenuate cerulean induced pancreatitis.

AIM: To establish the method of fingerprint analysis in Herba pogostemonis by HPLC. METHODS: HPLC with Hypersil ODS column was used,taking Methanol-0.05% phosphoric acid(gradient elution)as a mobile phase and detection wavelength was set at 270nm. RESULTS: 26 peaks were separated on HPLC fingerprint in Herba pogostemonis. CONCLUSION: The method is reliable,accurate and can be used as a quality control method for Herba pogostemonis.