ABSTRACT
Objective To explore the recombinant tissue type fibrinolytic enzyme ( rt-PA) intravenous throm-bolysis treatment the clinical curative effect of acute ischemic stroke .Methods Will appear symptoms of acute ische-mic stroke(1 minute,the remaining 90%of the dose required intravenous drip within 1h.Thrombolysis in 24 hours,not the use of anticoagulants or aspirin .After such as clinical and head CT shows no bleeding,review of the available antiplatelet and/or anticoagulant therapy.Control group used aspirin oral,lamps take injection and static drop treatment ,cytidine diphosphate choline course of 14 days.All cases of application of mannitol,symptomatic treatment for patients with complications .Then observation on admission and treatment 1,7,21 days after the NIHSS score .Results Thrombolysis group 1,7,21 days NIHSS score significantly reduced ,each was (11.3 ±3.6)points,(9.1 ±2.8)points,(8.3 ±3.9)points,Degree of neurologic deficits and daily life activities a-bility increased significantly(P0.05),each was 6.7%,6.7%,3.3%.Conclusion Rt-PA intravenous thrombolysis for acute ischemic stroke effect significantly ,can significantly shorten the course of the disease,reduce morbidity,improve the quality of life of the patients .
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Objective To construct a eukaryotic expression vector of decorin(DCN),and observe its expression in CHO cells,in order to provide a basis for further study on the anti-tumor effect of DCN. Methods DCN cDNA was amplified by PCR.The human full-length DCN cDNA ligated into pBluescript was used as template.The fragment was ligated to the expression vector pCDNA3 previously digested with XbaⅠ and EcoR Ⅰ.The ligation mixture was transformed into competent E.coli JM109 cells.Transformants containing inserts were confirmed by restrictive digestion and DNA sequencing.The expression vector was transfected into CHO cells using lipofectamine,and transfected cells were cultivated in DMEM containing G418 (800 mg?L-1) for about 2 months.Immunohistochemistry method was used to detect the expression of DCN protein in stably transfected cells.Results The PCR product was about 1 000 bp.The recombinant expression vector was identified by restrictive digestion and DNA sequencing. DCN protein was detectable in stablely transfected cells.Conclusion The recombinant eukaryotic expression vector pCDNA-DEC is constructed successfully and stablely transfected CHO cells are established.
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0.05).The results of Western blotting and immunohistochemical method showed that HO-1 protein expression increased in DOX group and DOX-IR group,and was negative in normal group.More distruction of ultrastructural changes of hepatic cells in IR group was found than in DOX-IR group by transmission electron microscope.Conclusion Doxorubicin pretreatment could protect the liver from ischemia-reperfusion injury,which may be related to HO-1 expression induced by doxorubicin,low dosage of doxorubicin does little harm to rat liver.