Endovascular Treatment for Iliac Vein Compression Syndrome: a Comparison between the Presence and Absence of Secondary Thrombosis

Wen-Sheng Lou,Jian-Ping Gu,Xu He,Liang Chen,Hao-Bo Su,Guo-Ping Chen,Jing-Hua Song,Tao Wang 대한영상의학회 2009 Korean Journal of Radiology Vol.10 No.2

Objective: To evaluate the value of early identification and endovascular treatment of iliac vein compression syndrome (IVCS), with or without deep vein thrombosis (DVT). Materials and Methods: Three groups of patients, IVCS without DVT (group 1, n = 39), IVCS with fresh thrombosis (group 2, n = 52) and IVCS with non-fresh thrombosis (group 3, n = 34) were detected by Doppler ultrasonography, magnetic resonance venography, computed tomography or venography. The fresh venous thrombosis were treated by aspiration and thrombectomy, whereas the iliac vein compression per se were treated with a self-expandable stent. In cases with fresh thrombus, the inferior vena cava filter was inserted before the thrombosis suction, mechanical thrombus ablation, percutaneous transluminal angioplasty, stenting or transcatheter thrombolysis. Results: Stenting was performed in 111 patients (38 of 39 group 1 patients and 73 of 86 group 2 or 3 patients). The stenting was tried in one of group 1 and in three of group 2 or 3 patients only to fail. The initial patency rates were 95% (group 1), 89% (group 2) and 65% (group 3), respectively and were significantly different (p = 0.001). Further, the six month patency rates were 93% (group 1), 83% (group 2) and 50% (group 3), respectively, and were similarly significantly different (p = 0.001). Both the initial and six month patency rates in the IVCS patients (without thrombosis or with fresh thrombosis), were significantly greater than the patency rates of IVCS patients with non-fresh thrombosis. Conclusion: From the cases examined, the study suggests that endovascular treatment of IVCS, with or without thrombosis, is effective. Objective: To evaluate the value of early identification and endovascular treatment of iliac vein compression syndrome (IVCS), with or without deep vein thrombosis (DVT). Materials and Methods: Three groups of patients, IVCS without DVT (group 1, n = 39), IVCS with fresh thrombosis (group 2, n = 52) and IVCS with non-fresh thrombosis (group 3, n = 34) were detected by Doppler ultrasonography, magnetic resonance venography, computed tomography or venography. The fresh venous thrombosis were treated by aspiration and thrombectomy, whereas the iliac vein compression per se were treated with a self-expandable stent. In cases with fresh thrombus, the inferior vena cava filter was inserted before the thrombosis suction, mechanical thrombus ablation, percutaneous transluminal angioplasty, stenting or transcatheter thrombolysis. Results: Stenting was performed in 111 patients (38 of 39 group 1 patients and 73 of 86 group 2 or 3 patients). The stenting was tried in one of group 1 and in three of group 2 or 3 patients only to fail. The initial patency rates were 95% (group 1), 89% (group 2) and 65% (group 3), respectively and were significantly different (p = 0.001). Further, the six month patency rates were 93% (group 1), 83% (group 2) and 50% (group 3), respectively, and were similarly significantly different (p = 0.001). Both the initial and six month patency rates in the IVCS patients (without thrombosis or with fresh thrombosis), were significantly greater than the patency rates of IVCS patients with non-fresh thrombosis. Conclusion: From the cases examined, the study suggests that endovascular treatment of IVCS, with or without thrombosis, is effective.

The Optimization Algorithm for the Pathfinder Sea Surface Temperature in the East China Seas

Song, Dehai,Bao, Xianwen,Wang, Xiao Hua,Wu, Wen 한국해양학회 2009 Ocean science journal Vol.44 No.1

Based on the analysis of the quality level in a Pathfinder 4km daily nighttime Sea Surface Temperature product (PFSST) in the East China Seas (ECS) from 1985 to 2004, the proportion of high-quality data was lower than that in the global level. Additionally, the PFSST maps showed clearly the void and anomaly data impacted by atmospheric contamination. In order to solve the above problem, an optimal algorithm was established through introducing the structure function, setting up the daily first-guess sea surface temperature (SST) field and taking PFSST product of the highest quality as reference points. Comparisons were done between this optimally interpolated SST and the selected original PFSST and the simultaneous in situ measurements. It illustrated it was possible to exactly estimate the SST values in the ECS during the recent two decades. The mean bias error and the root mean square error between data sets optimally evaluated and in situ observed were lower than those between the previous global estimations and in situ measurnments.

Enhanced Thermal and Mechanical Properties of Polyimide/Graphene Composites

Wen Dai,Jinhong Yu,Yi Wang,Yingze Song,Hua Bai,Kazuhito Nishimura,Huiwei Liao,Nan Jiang 한국고분자학회 2014 Macromolecular Research Vol.22 No.9

Polyimide (PI)/graphene sheets (GSs) composites were prepared by solution blending. The incorporationof GSs into PI increased the thermal conductivity, thermal stability and mechanical properties of PI. The thermal conductivityof PI/GSs composites was significantly improved compared with that of neat PI from 0.254 to 1.002 W/mK; this can be attributed to the homogeneous dispersion of graphene and the formation of heat conduction pathway. Furthermore, the Young modulus of PI/GSs was raised up to 4.04 GPa, approximately two-fold enhancement incomparison with that of neat PI. In addition, the incorportation of GSs in PI indicated excellent optical transparencyat the lowest weight fractions of GSs and modified wettability of PI films.

Fine mapping and candidate gene analysis of thefloury endosperm gene, FLO(a), in rice

Song I Lee,Yong Li Qiao,Ri Hua Piao,Wen Zhu Jiang,Tae Ho Ham,Joong Hyoun Chin,Zhong Ze Piao,Long Zhi Han,Si Yong Kang,Hee Jong Koh 한국육종학회 2010 한국육종학회 학술발표회 발표요지 Vol.42 No.1

eRF1aMC and Mg2+ Dependent Structure Switch of GTP Binding to eRF3 in Euplotes octocarinatus

( Song Li ),( Yu Xin Jia ),( Wen Si Zhu ),( Bao Feng Chai ),( Ai Hua Liang ) 한국미생물 · 생명공학회 2012 Journal of microbiology and biotechnology Vol.22 No.2

Eukaryotic translation termination is governed by eRF1 and eRF3. eRF1 recognizes the stop codons and then hydrolyzes peptidyl-tRNA. eRF3, which facilitates the termination process, belongs to the GTPase superfamily. In this study, the effect of the MC domain of eRF1a (eRF1aMC) on the GTPase activity of eRF3 was analyzed using fluorescence spectra and high-performance liquid chromatography. The results indicated eRF1aMC promotes the GTPase activity of eRF3, which is similar to the role of eRF1a. Furthermore, the increased affinity of eRF3 for GTP induced by eRF1aMC was dependent on the concentration of Mg2+. Changes in the secondary structure of eRF3C after binding GTP/GDP were detected by CD spectroscopy. The results revealed changes of conformation during formation of the eRF3C·GTP complex that were detected in the presence of eRF1a or eRF1aMC. The conformations of the eRF3C·eRF1a·GTP and eRF3C·eRF1aMC·GTP complexes were further altered upon the addition of Mg2+. By contrast, there was no change in the conformation of GTP bound to free eRF3C or the eRF3C·eRF1aN complex. These results suggest that alterations in the conformation of GTP bound to eRF3 is dependent on eRF1a and Mg2+, whereas the MC domain of eRF1a is responsible for the change in the conformation of GTP bound to eRF3 in Euplotes octocarinatus.

Identification of seven novel virulence genes from Xanthomonas citri subsp. citri by Tn5-based random mutagenesis

Xue Song,Jing Guo,Wen-xiu Ma,Zhi-yuan Ji,Li-fang Zou,Gong-you Chen,Hua-song Zou 한국미생물학회 2015 The journal of microbiology Vol.53 No.5

To identify novel virulence genes, a mutant library of Xanthomonas citri subsp. citri 29-1 was produced using EZ-Tn5 transposon and the mutants were inoculated into susceptible grapefruit. Forty mutants with altered virulence phenotypes were identified. Nine of the mutants showed a complete loss of citrus canker induction, and the other 31 mutants resulted in attenuated canker symptoms. Southern blot analysis revealed that each of the mutants carried a single copy of Tn5. The flanking sequence was identified by plasmid rescue and 18 different ORFs were identified in the genome sequence. Of these 18 ORFs, seven had not been previously associated with the virulence of X. citri subsp. citri and were therefore confirmed by complementation analysis. Real-time PCR analysis showed that the seven genes were upregulated when the bacteria were grown in citrus plants, suggesting that the expression of these genes was essential for canker development.

The Optimization Algorithm for the Pathfinder Sea Surface Temperature in the East China Seas

Dehai Song,Xianwen Bao,Xiao Hua Wang,Wen Wu 한국해양과학기술원 2009 Ocean science journal Vol.44 No.1

Based on the analysis of the quality level in a Pathfinder 4km daily nighttime Sea Surface Temperature product (PFSST) in the East China Seas (ECS) from 1985 to 2004, the proportion of high-quality data was lower than that in the global level. Additionally, the PFSST maps showed clearly the void and anomaly data impacted by atmospheric contamination. In order to solve the above problem, an optimal algorithm was established through introducing the structure function, setting up the daily first-guess sea surface temperature (SST) field and taking PFSST product of the highest quality as reference points. Comparisons were done between this optimally interpolated SST and the selected original PFSST and the simultaneous in situ measurements. It illustrated it was possible to exactly estimate the SST values in the ECS during the recent two decades. The mean bias error and the root mean square error between data sets optimally evaluated and in situ observed were lower than those between the previous global estimations and in situ measurnments. Based on the analysis of the quality level in a Pathfinder 4km daily nighttime Sea Surface Temperature product (PFSST) in the East China Seas (ECS) from 1985 to 2004, the proportion of high-quality data was lower than that in the global level. Additionally, the PFSST maps showed clearly the void and anomaly data impacted by atmospheric contamination. In order to solve the above problem, an optimal algorithm was established through introducing the structure function, setting up the daily first-guess sea surface temperature (SST) field and taking PFSST product of the highest quality as reference points. Comparisons were done between this optimally interpolated SST and the selected original PFSST and the simultaneous in situ measurements. It illustrated it was possible to exactly estimate the SST values in the ECS during the recent two decades. The mean bias error and the root mean square error between data sets optimally evaluated and in situ observed were lower than those between the previous global estimations and in situ measurnments.

Effect of Transplant Timing and Ethylene Inhibitor and Vitamin B₁, Activated Charcoal, Zinic Sulfate, Light Intensity on Phalaenopsis Hybrid in vitro

Ruey-Song Lin,Shu-Fen Hsu,Yu-Hsuan Yang,Szu-Lun Lai,Wen-Chi Kao,Jung-Hua Hsu 한국원예학회 2006 한국원예학회 기타간행물 Vol.- No.-

Effect of nutritional factors on the accretion of secondary metabolites in Malaysian ginseng adventitious root cultures

Cui Xi-Hua,Hosakatte Niranjana Murthy,Zhang Ji-De,Song Hang-Lin,Jiang Yin-Ji,Qi Wen-Wen,Li Yong Yi,백기엽,박소영 한국식물생명공학회 2020 Plant biotechnology reports Vol.14 No.3

In this study, we aimed to verify the effect of nutritional factors on the accretion of secondary metabolites in the adventitious root (AR) cultures of Malaysian ginseng (Eurycoma longifolia Jack) grown in small-scale bioreactors. AR were induced from leaf explants and cultured in different types of media including Murashige and Skoog (MS) medium, Driver Kuniyuki Walnut (DKW) medium, Gamborg’s B5 medium, Woody Plant Medium (WPM), and ¾ MS medium. Among these media, the MS and Gamborg’s B5 media induced lateral root development from initial inoculum, which accounted for the increase in AR biomass accretion. By contrast, the DKW and WPM media did not induce lateral root formation from the cultured explants. The ¾ MS medium was optimal for the growth of AR and accretion of secondary metabolites, after 7 weeks of culture, the biomass of AR increased by 8.6-fold in ¾ MS medium, and the total phenolic and flavonoid contents reached 5.23 and 2 mg g−1 of tissue dry weight, respectively. Analysis of mineral elements in the spent medium revealed that ¾ MS medium was most suitable for nutrient supply to developing AR. LC–MS analysis showed the accretion of eurycomanone, a therapeutically useful metabolite, in the AR of Malaysian ginseng.

Analysis and Corresponding Measures on Subsynchronous Resonance of Series Compensated Transmission for Large-scale Coal-fired Power Base in China

Du, Ning,Song, Rui-Hua,Liu, Chuan-Wen,Chen, Zhen-Zhen,Xiang, Zu-Tao,Ban, Lian-Geng The Korean Institute of Electrical Engineers 2014 The Journal of International Council on Electrical Vol.4 No.2

This paper investigates the risk assessment of subsynchronous resonance for series compensated UHV transmission of Ximeng coal-fired power base, which exemplifies a common problem in the development of the power grid in China. To avoid the problem of huge computational amount of offline analysis on subsynchronous resonance, a new method of online analysis and forewarning based on time-domain simulation is proposed. In addition, various suppression measures are summarized and discussed, as well as combination of multiple measures.