2.Study on the relationship between ?-fibrinogen gene-455G/A polymorphism and cerebral infarction
Journal of Clinical Neurology 1993;0(03):-
Objective To study the correlation between ?-fibrinogen gene variation (-455G/A) and plasma fibrinogen level and cerebral infarction.Methods 86 hypertension patients with cerebral infarction(infarction group),85 hypertension patients without cerebral infarction(hypertension group) and 90 healthy people(control group) were enrolled in this trial. The polymorphism of ?-fibrinogen gene-455G/A located at the start of transcription from all subjects was analyzed by polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP) technique. Plasma fibrinogen level was measured with prothrombin time (PT) assay.Results The fibrinogen level in infarction group(4.82?0.26 g/L) was significantly higher than that in control group(4.37?0.19 g/L)( P 0.05).The A-455 allele frequency in infarction group was significantly higher than those in control group and hypertension group (all P 0.05). Conclusion Plasma fibrinogen level is affected by the ?-fibrinogen gene -455G/A polymorphism. The fibrinogen A-455 allele may be an independent risk factor of cerebral infarction.
3.Investigation on Natural Lighting in Houses Constructed in Different Times in Island City
Journal of Environment and Health 1992;0(04):-
Objective To understand the natural lighting in houses in constructed in different times island city and the influential factors in Dinghai, Zhoushan. Methods 3 districts, 92 families living in the buildings with 4-6 floors were chosen in Dinghai, Zhoushan, the daylight factor and the ratio of the window and the floor were determined, the subjective evaluation such as good, common, worse, the worst was done among 323 person according to the Code of Housing Design,GB50096-1999, Daylight Code of Building Design, GB50033-2001, Design Code for Planning City Residential Areas, GB50180-1993. Results The daylight in all the investigated houses met the requirement in GB50180-1993. The ratio of the window and the floor in the living room, bedroom, kitchen was larger than 1/7, that of the dinning room was more than 1/10, which met the requirement in GB50096-1999, in addition, the ratio of the newly buildings was higher than that of the old. The total qualified rate of the lowest daylight factor was 58.2, the main bedroom ranked the best, the living room ranked the worst, significant different results were seen in the houses constructed in different times, in 1980s, 1990s and 2000, it was 43.3%, 54.7% and 76.7% respectively. 91.9 percent of people who living in the first floor think the natural lighting worse, even the worst. Conclusion All the natural lighting designs for the involved houses in the island city can meet the requirements in the national standard of China, some people still complained the bad natural lighting, especially those who living in the lower floors.
4.Base and treatment of the thoracic myelopathy caused by ossification of ligamentum flavum
Orthopedic Journal of China 2006;0(05):-
The thoracic ossification of the ligamentum flavum(OLF)is usually located in the lower thoracic spine.Thoracic OLF has been widely recognized as a main cause of thoracic myelopathy.The pathogenesis of OLF is poorly understood.Because the thoracic OLF has many clinical manifestations and it is commonly combined with other spinal disorders,it is easy to be misdiagnosed or to be a delayed diagnosis.The surgical treatment of thoracic OLF has high risk and Serious complications.In this paper the pathogenesis,diagnosis and treatment of thoracic ossification of ligamentum flavum in recent years are reviewed.
5.Myocardial ischemia/reperfusion injury and inflammatory reaction
Chinese Journal of Clinical Pharmacology and Therapeutics 2002;0(05):-
In both clinical and animal experiments,it has been confirmed that the inflammation in heart is involved in the development of heart injury after the ischemia/reperfusion.However,the pro-inflammatory mechanism is extremely complicated.Recently,a growing number of reports indicates that many factors play their roles in the inflammation,such as cytokinemia,inflammatory cells,metabolic product of arachidonic acid and COX et al.They are released/presented in the region of myocardial ischemia/reperfusion and include both ischemic and secondary heart injury.
7.Construction of mIL-12 recombinant retrovirus vector and establishment of viral package cell line
Journal of Jilin University(Medicine Edition) 2006;0(02):-
Objective To construct mIL-12 recombinant retrovirus vector and evaluate the effect of mIL-12 expression on glioma in rats.Methods mIL-12 DNA was cloned into vector pLEGFP using standard procedures to develop recombinant plasmid pLEGFP-mIL 12,then it was transferred into PA317 cells.Results Products of enzyme digestion and PCR of recombinant plasmid pLEGFP-mIL12 were analysed using electrophoresis and a(2 290 bp) fragment of DNA as same as mIL-12 gene in size was found,transfected NIH3T3 expressed GFP-mIL12 fusion protein.Conclusion Transfected PA317 cells can produce retrovirus which can infect NIH3T3 cells,and the expression of mIL-12 gene can be detected in NIH3T3 cells.
8.Construction and transfection of neural stem cells of recombinant plasmid pLEGFP-mIFN?
Journal of Jilin University(Medicine Edition) 2006;0(04):-
Objective To construct a recombinant plasmid pLEGFP-mIFN? for developing the genetical therapy of tumor by stem cells.Methods PCR was used to amplify the mIFN? gene from plasmid pcDNA3.1-mIFN? in which the mIFN? was cloned.A new plasmid,pLEGFP-mIFN?,was then constructed by inserting the amplified mIFN? gene into pLEGFP-C1.Restriction analysis and sequencing were used to confirm the structure of pLEGFP-mIFN?.Neural stem cells were transfected by supernatant of PA317.Results A DNA fragment in size of 500 bp was amplified.Restriction analysis showed that the amplified gene was inserted into pLEGFP-C1 correctly.(Conclusion The) plasmid pLEGFP-mIFN? is constructed successfully,and it can transfect neural stem cells.
9.Inhibitory effects of LaCl_3 on hepatocellular carcinoma
Journal of Jilin University(Medicine Edition) 2006;0(06):-
Objective To observe the inhibitory effect of LaCl_3 on the growth of human hepatocellular carcinoma cell lines SMMC-7721 and its mechanism.Methods The cells were treated with different doses of LaCl_3 and the growth curve,colony inhibitory rates,the levels of AFP of cultured cells were detected at 1,3,5 and 7 days after they were dealed with LaCl_3.The changes of cell cycle were detected by flow cytometry and the expressions of cell cycle protein CyclinD_1,PCNA,CDK_4 and P16 were observed by immunocytochemistry staining.Results MTT test showed that SMMC-7721 cell proliterating activity was obviously inhibited by LaCl_3 in a time and dose related manner at concentrations of 0.50 and 1.00 mmol?L~(-1).The colony forming inhibitory rate of 0.10,0.50 and(1.00 mmol?L~(-1))LaCl_3 were 51%, 67% and 97% (P
10.Expression of TrkA in Wistar rat brain during embryonic phase
Journal of Jilin University(Medicine Edition) 2006;0(01):-
Objective To detect the expression of TrkA in the brain of the Wistar rats during the embryonic phase.Methods Adult Wistar rats were fed in one cage.It was E0 day when sepermia were found in vaginal suppository and vaginal smear.The expressions of TrkA in the brain of Wistar rats during various brain regions were observed by immunohistochemistry on E13,E15,E17,E19 and E21 day. Results On E13 day no obvious expression of TrkA was observed in the embryonic brain.The expression of TrkA had an obviously increasing tendency in the cortex of telencephalon from E15 day to E17 day.And on E17 day,the positive rate of the expression of TrkA reached the second peak.While on E19 day,the expression of TrkA had a temporary decreasing.Then on E21 day the expression of TrkA reached the highest peak.The striatum and hippocampus developed later than the telencephalon till E17 day,and the expressions of TrkA during these stages were same as the cerebrum.Conclusion From E15 to E17 day,obvious expressions of TrkA are observed in the embryonic telencephalon,and it accords with embryonic induction.