1.Study on limited contact femoral supracondylar interlocking intramedullary nail by finite element analysis
Zhi LI ; Zhen WANG ; Zheng SUN
Orthopedic Journal of China 2006;0(14):-
[Objective]A new limited contact femoral supracondylar interlocking intramedullary nail(LCFSIIN) was made,which was part of a new custom-made hemi-knee joint,to improve the results of childrens' limb salvage.[Method]A new LCFSIIN was performed and the stress of bolts,intramedullary nails and bone were analyzed by finite dement analysis(FEA) while the bolts were implanted in different angulafions-0?,15?,30?,45?and 60?.[Result]The results of FEA show that the stress of bolts,bone and nails with 15? insertion angles of bolt was the tiniest and well distributed.Stress of bone with 0? insertion angles was more obvious than that with 15?,30?and 45?.The more the angles,the stress of proximal bolt became more obvious and the stress of distal bolt decreasing.[Conclusion]This new LCFSIIN can reduce destruction of biological environment of bone and is easy in use in limb salvage surgery of allograft.
2.Progresses on Biosynthesis of Long Chain Polyunsaturated Fatty Acids in Plant
China Biotechnology 2006;0(12):-
There is immense interest in the long-chain polyunsaturated fatty acids(LC-PUFAs) on account of their health-beneficial properties.There has been considerable interest in the production of LC-PUFAs in transgenic plants to provide a cheap,sustainable and clean source of these fatty acids.Several main LC-PUFAs,their roles and metabolic pathway in plant are introducedbriefly,progresses on biosynthesis of LC-PUFAs in transgenic plant are reviewed,and strategies for improving the yields of LC-PUFAs in plant are also discussed.
3.Advances in Application Studies of FAD2 on Biosynthesis of Industrial Fatty Acids
China Biotechnology 2006;0(05):-
Many unusual fatty acids present in the seed oils of non-food plants are modified at the ?12 position either by the addition of epoxy or hydroxy groups or by the formation of triple (acetylenic) bonds or conjugated double bonds. The introduction of these functionalities into C18 fatty acids is catalyzed by a family of divergent forms of the fatty-acid ?12-desaturase (FAD2) enzyme. Genes encoding these enzymes have now been cloned from a variety of organisms and expressed in transgenic oilseeds. However,the accumulation of the intended fatty acids in transgenic plants has been relatively disappointing,and the mechanisms of these unusual fatty acids biosynthesis and transferring from phosphatidylcholine into storage triacylglycerols still need to be elucidated.
4.Expression of insulin-like growth factor-Ⅱ and its mRNA in PIH Placenta
Zhen LI ; Guilan LIN ; Zhi WANG
Chinese Journal of Perinatal Medicine 2000;0(04):-
Objective To investigate the expression of insulin-like growth factor-Ⅱ( IGF-II ) and its mRNA in human placenta and to evaluate its role in the pathogenesis pregnancy induced hypertension (PIH). Methods The cellular distribution of IGF-Ⅱin normal and PIH placenta was determined by immunohistochemistry. Trophoblasts were digested,separated,and purified from placenta. IGF-ⅡmRNA expression in trophoblasts was detected by RT-PCR. The mean density was determined by image analysis technique. Results (1) IGF-Ⅱwas mostly found in syncytiotrophoblast,cytotrophoblast and amnio-chorion. The strongest immunoreactivity was observed in the syncytiotrophoblast and cytotrophoblast. (2)The mean density of PIH placenta (0.324?0.042) was significantly lower than that of normotensives (0.360?0.072,P
6.The technological innovation strategy for quality control of Chinese medicine based on Big Data.
Zhen-hao LI ; Zhong-zhi QIAN ; Yi-yu CHENG
China Journal of Chinese Materia Medica 2015;40(17):3374-3378
The evolution of the quality control concepts of medical products within the global context and the development of the quality control technology of Chinese medicine are briefly described. Aimed at the bottlenecks in the regulation and quality control of Chinese medicine, using Big Data technology to address the significant challenges in Chinese medicine industry is proposed. For quality standard refinements and internationalization of Chinese medicine, a technological innovation strategy encompassing its methodology, and the R&D direction of the subsequent core technology are also presented.
Data Mining
;
Databases, Factual
;
Drug Industry
;
organization & administration
;
standards
;
Drugs, Chinese Herbal
;
analysis
;
pharmacology
;
standards
;
Humans
;
Quality Control
8.Importance of diagnosis and research on bone and joint pathology.
Zhi-ming JIANG ; Hui-zhen ZHANG ; Li ZHENG
Chinese Journal of Pathology 2009;38(5):289-291
Arthrography
;
Bone Neoplasms
;
diagnosis
;
diagnostic imaging
;
pathology
;
Bone and Bones
;
diagnostic imaging
;
pathology
;
Diagnosis, Differential
;
Diagnostic Errors
;
Humans
;
Immunohistochemistry
;
Joint Diseases
;
diagnosis
;
diagnostic imaging
;
pathology
;
Joints
;
diagnostic imaging
;
pathology
;
Radionuclide Imaging
10.The most promising strategy targeted against cancer stem cells.
Zhi-xiong LIN ; Li-juan YANG ; Shi-ming ZHEN
Chinese Medical Journal 2011;124(24):4303-4303