1.Comparing MSCT with MRI in preoperative staging of laryngeal carcinoma
Jianxiu XUE ; Runqing DUAN ; Bei ZHAO ; Chengjie MA ; Chuanjian Lü
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2009;(24):1134-1137,1142
Objective:To investigate the value of MRI and MSCT in TNM staging of laryngocarcinoma.Method:Thirty-seven patients with laryngocarcinoma were underwent by contrast enhanced scan and muhiplanar reconstruction.Thirty-five patients with laryngocarcinoma were underwent contrast enhanced muhislice spiral CT,which of them were done by MPR.There are 28 cases which were scan by MRI and MSCT in the two former nd we contrasted the accuracy rating in laryngeal manifestation of abnormality.In the former two groups,we observed them the variability in the aspect of lymphaden metabasis and TNM staging.Result:In all 28 cases,the MRI had better accuracy rating in displaying the parts of preepiglottic space,larynx side interspace,lingual root,eck tissue,vocal cord.In the TNM staging,there was no difference in stage one in accuracy rating,as the stag stepping up,the accuracy rating of MRI had became better.The last result was that the two methods had difference in staging.In the two methods,MSCT had better sensitivity,specificity and accuracy rating.Conclusion:RI and MSCT had good accuracy rating in TNM staging,MRI has better accuracy rating in some of laryngeal,but as the lymphaden metabasis,the MSCT was better.There were variability in staging,and the MRI was better.
2.Comparing MSCT with MRI in preoperative staging of laryngeal carcinoma.
Jianxiu XUE ; Runqing DUAN ; Bei ZHAO ; Chengjie MA ; Chuanjian LÜ
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2009;23(24):1134-1142
OBJECTIVE:
To investigate the value of MRI and MSCT in TNM staging of laryngocarcinoma.
METHOD:
Thirty-seven patients with laryngocarcinoma were underwent by contrast enhanced scan and multiplanar reconstruction. Thirty-five patients with laryngocarcinoma were underwent contrast enhanced multislice spiral CT, which of them were done by MPR. There are 28 cases which were scan by MRI and MSCT in the two former and we contrasted the accuracy rating in laryngeal manifestation of abnormality. In the former two groups, we observed them the variability in the aspect of lymphaden metastasis and TNM staging.
RESULT:
In all 28 cases, the MRI had better accuracy rating in displaying the parts of preepiglottic space, larynx side interspace, lingual root, neck tissue, vocal cord. In the TNM staging, there was no difference in stage one in accuracy rating, as the stag stepping up, the accuracy rating of MRI had became better. The last result was that the two methods had difference in staging. In the two methods, MSCT had better sensitivity, specificity and accuracy rating.
CONCLUSION
MRI and MSCT had good accuracy rating in TNM staging, MRI has better accuracy rating in some of laryngeal, but as the lymphaden metastasis, the MSCT was better. There were variability in staging, and the MRI was better.
Adult
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Carcinoma, Squamous Cell
;
diagnostic imaging
;
pathology
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Female
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Humans
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Laryngeal Neoplasms
;
diagnostic imaging
;
pathology
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Magnetic Resonance Imaging
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Male
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Middle Aged
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Neoplasm Staging
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Tomography, Spiral Computed
3.Cloning and expression of a beta-glucosidase gene umcel3G from metagenome of buffalo rumen and characterization of the translated product.
Hong GUO ; Yi FENG ; Xinchun MO ; Chengjie DUAN ; Jiliang TANG ; Jiaxun FENG
Chinese Journal of Biotechnology 2008;24(2):232-238
Metagenomic cosmid libraries containing 1.26 x 10(5) clones, covering about 4.8 x 10(6) kb metagenomic DNA of uncultured microorganisms from the contents of buffalo rumens were constructed, and 118 independent clones expressing beta-glucosidase activity were isolated from the libraries. Screening of these clones showed that eight clones expressed relatively higher beta-glucosidase activity at pH 5.0 and 37 degrees C. One out of the eight clones was subcloned. Sequencing analysis showed that an open reading frame (ORF) of 2223 bp, termed umcel3G, potentially encodes a beta-glucosidase. The encoded product shared highest homology with a beta-glucosidase from Bacillus sp. at 60% identity and 73% similarity. The umcel3G was over-expressed in Escherichia coli and the size of the translated product Umcel3G on SDS-PAGE was in agreement with the predicted molecular mass. Zymogram analysis showed that Umcel3G exhibited beta-glucosidase activity, confirming that this ORF encodes a beta-glucosidase. The Umcel3G, purified with Ni-NTA column, exhibited optimal activity at pH 6.0-6.5 and 45 degrees C. Certain ions such as Ca2+, Zn2+ had significant positive effect on the activity of Umcel3G. However, some ions such as Fe3+, Cu2+ gave significant inhibitory effect on the enzyme. The Ni-NTA purified recombinant beta-glucosidase Umcel3G had a specific activity of 22.8 IU/mg at pH4.5, 35 degrees C and at the presence of 5 mmol/L Ca2+, indicating that this enzyme has potential applications in the fermentative production of ethanol by simultaneous saccharification and cofermentation (SSCF) of lignocelluloses.
Animals
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Bacteria
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enzymology
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genetics
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Buffaloes
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Cloning, Molecular
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Escherichia coli
;
genetics
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metabolism
;
Open Reading Frames
;
genetics
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Recombinant Proteins
;
biosynthesis
;
genetics
;
isolation & purification
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metabolism
;
Rumen
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microbiology
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beta-Glucosidase
;
biosynthesis
;
genetics
;
isolation & purification
4.Inhibition of LIM kinase reduces contraction and proliferation in bladder smooth muscle.
Qingfeng YU ; Chengjie WU ; Yeda CHEN ; Bingsheng LI ; Ruixiao WANG ; Ru HUANG ; Xuechun LI ; Di GU ; Xiaolong WANG ; Xiaolu DUAN ; Shujue LI ; Yang LIU ; Wenqi WU ; Martin HENNENBERG ; Guohua ZENG
Acta Pharmaceutica Sinica B 2021;11(7):1914-1930
Overactive bladder (OAB) is the most bothersome symptom in lower urinary tract symptoms (LUTS). Current pharmacologic treatment aims to inhibit detrusor contraction; however, shows unsatisfied efficacy and high discontinuation rate. LIM kinases (LIMKs) promote smooth muscle contraction in the prostate; however, their function in the bladder smooth muscle remains unclear. Here, we studied effects of the LIMK inhibitors on bladder smooth muscle contraction and proliferation both