0.05) . Cost-effectiveness ratios were 52.89 and 211.53,respectively. CONCLUSION:Low-dose prolonged gemcitabine infusion combined with cisplatin regimen is economical one in the treatment of advanced NSCLC.

BACKGROUND:The regional gene therapy of bone defect is to transfer genes capable of accelerating bone healing into target cells, which will transcript the genes into mRNA and translate them into proteins, then the target cells will be stimulated to differentiate under the role of protein, and finally reach the purpose of accelerating bone healing by means of autocrine or paracrine. With the development of cell recombination technique, more and more genes of growth factors involved in the bone repairing have been successfully cloned, which make it possible to treat bone defect with gene therapy. The present status for the regional gene therapy of bone defect is summarized.DATA SOURCES: An online search in Pubmed database was undertaken to identify articles about the regional gene therapy of bone defect published in English from January 1965 to January 2006 by using keywords of "gene therapy,bone defect". Meanwhile, Chinese relevant articles published from January 2000 to January 2006 were searched in Wanfang database by using the same keywords in Chinese.STUDY SELECTION: The data were primarily checked, and the references of each article were looked up. Inclusive criteria: related to the regional gene therapy of bone defect. Exclusive criteria: repetitive study or Meta analysis.DATA EXTRACTrON: Totally 237 articles were collected, 32 of them were in accordance with the inclusive criteria, and the other 205 were old or repetitive ones. Of the 32 articles, 4 were about the selection of destination genes, 3 about the selection of target cells, 7 about the selection of gene expression vector, 3 about the methods of gene transfer, 4 about gene therapy combined with tissue engineering in treating bone defect, 5 about polygenes in treating bone defects, and 2 about the problems and prospects in the gene therapy of bone defect.DATA SYNTHESIS: The regional gene therapy of bone defect is a new technique developed base on the basic theoretical cognition of bone regeneration and gene recombination technique, and provides ideal solving program for the treatment of bone defect caused by various reasons. The basic problems mainly include the selection of destination genes, selection of target cells, selection of gene expression vectors and the selection of the methods of gene transfer.The studies about the selection of target cells and methods of gene transfer become mature day by day, bone marrow stromal cells have become the target cells should be selected firstly, and it has been generally acknowledged that ex vivo gene transfer has more obvious advantages than in vivo one. The key problem at present is how to further explain the natural process of the repair of bone defect, and select the most effective component from the signal molecules involved in the process to apply in the gene therapy of bone defect, and further improve the gene expression vector, so as to ensure the safety of gene therapy. It is believed that with the continuously deepened theoretical cognition of bone regeneration and the continuous perfection of gene recombinant technique, the gene therapy of bone defect will finally go out of laboratory, and really serve the patients with bone defect.CONCLUSION: The regional gene therapy of bone defect can effectively activate the activity of bone regeneration at the site of bone defect, also can avoid the problems of immunologic rejection and systematic toxicity caused by the direct application of cytokines, and has good prospects of clinical application. At present, this technique is not completely perfect, and there are many problems to be deeply investigated in destination genes, gene vectors and transfection technique, etc.

The technology of bone tissue engineering has got rid from autologous bone implant and allograft bone. With the development in recent 20 years,the basic pattern of tissue engineered bone has already been constructed,consisting of related molecules to bone regeneration,active cells for osteogenesis and scaffold materials. The related molecule to bone regeneration is the dominant factor to determine the bio-activity of tissue engineered bone,and also is the key researches in the field of bone tissue engineering. As the molecule bio-mechanism of bone regeneration has been elucidated and molecule bio-techniques have been combined with bone tissue engineering,many achievements regarding the related molecules to bone regeneration are observed in bone induction mechanism,vector,gene therapy technology and the combined use,which all improve the effect of tissue engineered bone on repairing the bone defects.

Objective: To investigate the effect of three different goals of blood glucose control by insulin therapy on protein metabolism in the patients with critically cerebral disease.Methods: We performed a prospective,randomized,controlled study.A total of 122 patients with critically cerebral disease were randomly divided into three groups according to the target glucose-control levels:Group A: 4.4-6.1 mmol/L(n=41),Group B: 6.1-8.3 mmol/L(n=42),and Group C: 10-11.1 mmol/L(n=39).The state of protein metabolism and ratio of hypoglycemia of three groups were compared.Results: The indicators of nitrogen balance,prealbumin and transferrin in group A and group B were significantly better than that in group C(P<0.05),but the ratio of hypoglycemia in group A was significantly higher than those in group B and group C(P<0.05).Conclusion: Maintaining the blood glucose level ≤8.3 mmol/L might improve the nutrition status in the patients with critically cerebral disease by decreasing catabolism and promoting synthesis of protein.

Calmodulin(CaM),as major intracellular Ca 2+ signal transductor,is a ubiquitous, multifunctional protein in eukaryotic cells,invovled in a wide variety of cellular processes . Study of the structure and molecular recognition mechanism of CaM helps better understanding intracellular Ca 2+ signaling system and molecular recognition of protein-protein interaction,giving new insight into medicine development and clinical therapy. This paper reviews progress in the studies of molecular recognition of calmodulin in recent past years.

Thirty-two patients with comminuted proximal humerus fractures(Neer Ⅲ or Ⅳ) were admitted to Department of Orthopedics,First Hospital of Jilin University from March 2001 to April 2006.The patients consisted of 19 males and 13 females,aged 19-70 years,including 15 of 19-49 years and 17 of 50-70 years.All patients underwent treatment of cloverleaf plate-screw fixation.During the follow-up for 8 months,union time and scores from Constant & Murley functional scale were similar between male and female groups.Compared with patients aged 50 years,and the scores from Constant & Murley functional scale were significantly lower(P 50 years old is relatively longer with unfavorable functional recovery in the shoulder joint.

Objective: To compare the expression of multidrug resistant gene( mdr 1 ) in oral squamous cell carcinoma (SCC) before and after chemotherapy. Methods: Mdr 1 gene expression in 21 cases of oral SCC was detected before and after chemotherapy by dot blot hybridization, Results: Before and after sigle drug chemotherapy mdr1 mRNA(?10 5 copies/?g) in SCC tissue was 1.98?1.72 and 3.74?3.24( P

The incidence of rectal cancer has been increasing in recent years .It leads to more attention of scholars at home and abroad ,which the efficacy of rectal cancer has been improved by using neoadjuvant therapy all over the world .It is included preoperative radiotherapy ,preoperative chemotherapy and preoperative chemora-diotherapy .Preoperative radiotherapy ,which can be divided into short radiotherapy and conventional radiotherapy , are evaluated by comparison of T drop rate ,sphincter preservation rate ,complete remission rate and other indica-tors of clinical effect .Although the experience of pure preoperative chemotherapy is not rich enough ,it still has an advantage in lowering the tumour stage and other aspects .Currently, preoperative chemoradiotherapy is a good choice for rectal cancer ,because it could make an obvious advantage in the treatment ,at the same time ,three-di-mensional radiotherapy can make target more evenly distributed and focus treatment more precise .However,neo-adjuvant therapy has insufficient support in clinical in our country.So it needs to get more information for clinical effectiveness of applying preoperative chemoradiotherapy .This study is to summarize the new adjuvant treatment of rectal cancer .

Objective To summarize the experience of surgical treatment of congenital heart diseases combined with infective endocarditis. Methods All the patients of congenital heart diseases combined with infective endocarditis who received the surgical treatment in our department from January 1995 to December 2001 were retrospectively reviewed,which including 28 cases of single malformation and 11 cases of complex malformations. Results There were 3 early postoperative deathes, and the mortality rate was 7 7%. Followed up 5 months to 5 years with a mean of 3 6 years, there was 1 case of recurrent endocarditis and not late death. Conclusions Congenital heart diseases with infective endocarditis is an absolute surgical indication, and early surgical treatment of congenital heart diseases will lower the incidence of infective endocarditis.

0.05), but after 21 days of different estrogen treatment when the different estrogen levels were stabilized there were significant differences in PWL among the 3 groups ( P