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Objective To investigate the potential biological effect of long non-coding RNA( lncRNA) HOXA transcript at the distal tip( HOTTIP) on proliferation, migration and invasion of cervical cancer cells.Methods HOTTIP small interference RNA(siRNA) was transfected into HeLa and C-33A cervical cancer cell lines, with negative siRNA as a control.qPCR assay was performed to confirm the knock-down of the level of HOTTIP.CCK8 assay and colony-forming unit (CFU) assay were performed to evaluate the effect of HOTTIP knock-down on HeLa and C-33A cell proliferation.Wound healing assay was performed to evaluate the effect of HOTTIP knock-down on HeLa and C-33A cell proliferation and migration.Tumor invasion assay was used to evaluate the effect of HOTTIP knock-down on HeLa and C-33A cell invasion. Results The expression level of HOTTIP was efficiently knocked down by siRNA 48 h post transfection.The results of CCK8 assay and CFU assay showed that HOTTIP knock-down significantly decrease of cervical cancer cell proliferation. Wound healing assay result indicated that HOTTIP knock-down obviously suppressed cervical cancer cell proliferation and migration.Tumor invasion assay results demonstrated that HOTTIP knock-down significantly suppressed cervical cancer cell invasion.Conclusion HOTTIP levels in HeLa and C-33A cervical cancer cell lines can be efficiently knocked down with the siRNA strategy, and the HOTTIP knock-down can significantly suppress the tumor characteristics of cervical cancer cells, including the ability of proliferation, migration and invasion.
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Objective To summarize the effect of venous anastomisis from left atrium-common venous anastomisis ( supracardiac anasto-mosis) at the top of left atrium,and to find the best method to treat total anomalous pulmonary venous connection ( TAPVC) . Methods 52 cases,of which 35 male and 17 female with the age of 1 month to 41 years old and the weight of 3. 1~77 kg,hospitalized in West China hos-pital from January 2000 to April 2008,were treated by supracardiac anastomosis. Results One was dead and the other 51 cases were fully recovered and left hospital. After the operation,no anastomotic stenosis or arrhythmia was observed except the dead one. During follow-up peri-od which lasted from 3 months to 12 years,the heart function of 45 cases were normal. Conclusion supracardiac anastomosis can reduce the risk of anastomotic stenosis and arrhythmia,it is a promising method to treat supracardiac type TAPVC .
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Objective To evaluate the diagnostic and therapeutic strategy of traumatic pulmonary pseudocyst (TPP).Methods Fifteen patients who were diagnosed and treated as TPP between January 2000 and November 2011 were studied retrospectively.Results Nonpenetrating chest trauma was the underlying cause in all cases.A typical sign shown on chest radiograph was a thin-walled cavitary lesion in 9 patients,6 patients accompanied by traumatic wet lung,with or without an air-fluid level.Serial radiological images of CT showed high resolution of the above lesions.Single TPP lesion occurred in 9 patients,and multiple TPP lesions in 6 patients.The size of the lesions was 5 -75 (32 ± 17) mm.The pseudocyst was located in the left lung in 5 patients(33％),located in the right lung in 7 patients (47％),located in bilateral lung in 3 patients (20％).All TPP patients were treated conservatively with no occurrence of complications.Conclusions TPP is an uncommon benign lesion secondary to thoracic trauma.CT scan is an optimal option for diagnosis and evaluation of TPP.Uncomplicated cases can take conservative treatment.For complicated patients,theraneutic strategy should be made individually.
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This thesis mainly expounds the design ideas and the realization methods of medical statistics question database management system.Specifically speaking,the function modules,data structure and business processes of the system are designed based on the analysis of questions,test papers and the needs of system functions.We choose Visual Basic 6.0 to develop the system interface,establish the question database with Access 2003,and make use of Word 2003 to output documents.This system can achieve the separation of teaching and testing effectively which can make examinations more normal and scientific.
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To generate a mWAP-hLF hybrid locus that the transcription of human lactoferrin (hLF) genomic sequence is directed by the up & down stream regulatory sequence of murine whey acidic protein (mWAP) gene locus, we describe here a successive three-step 'Gap-repair' method. First, a gap-repair vector based on pBR322 vector backbone by inserting six joint homologous arms was constructed. Then using 'Gap-repair 'method mediated by Red recombination system of lambda-prophage in Escherichia coli, in the first step, the 8 kb 3' flanking region of the mWAP gene was subcloned from the Bacterial artificial chromosome which harbors the mWAP gene locus(mWAP BAC) into the gap-repair vector; in the second step, the 29 kb hLF genomic sequence from the ATG code to the TAA code was subcloned from the hLF BAC; in the third step, the 12 kb 5' flanking region of the mWAP gene was subcloned from the mWAP BAC. Finally, all these three DNA fragments were automatically combined together without any gap in the gap-repair vector, and a 49 kb mWAP-hLF hybrid locus that the hLF genomic sequence was flanked by the 5' & 3' flanking region of mWAP gene locus was constructed. The result was confirmed by PCR, restriction enzyme digestion and sequencing. Our method provide a new way for the construction of large mammary-gland expression vector.
