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Liang Chen,Hongyuan Fu,Tongyu Lu,Jianye Cai,Wei Liu,Jia Yao,Jinliang Liang,Hui Zhao,Jiebin Zhang,Jun Zheng,Yingcai Zhang,Yang Yang 대한암학회 2020 Cancer Research and Treatment Vol.52 No.2
Purpose Microtubule-associated protein 1 light chain 3B (LC3B) serves as a key component of autophagy, which is associated with the progression of carcinoma. Yet, it is still unclear whether LC3B is also an independent risk factor for intrahepatic cholangiocarcinoma (ICC). We aim to explore the predictive value of LC3B on prognosis of ICC, and to establish a novel and available nomogram to predict relapse-free survival (RFS) and overall survival (OS) for these patients after curative-intent hepatectomy. Materials and Methods From August 2004 to March 2017, 105 ICC patients were eligibly enrolled in the Third Affiliated Hospital of Sun Yat-sen University. Preoperative clinical information of enrolled patients was collected. Expression LC3B in the ICC specimen was detected by immunohistochemistry. Results The 5-year RFS and OS in this cohort were 15.7% and 29.6%, respectively. On multivariate Cox regression analysis, independent risk factors for 5-year OS were cancer antigen 125, microvascular invasion, LC3B expression and lymph node metastasis. Except for the above 4 factors, neutrophil/lymphocyte ratio and tumor differentiation were independent factors for 5-year RFS. The area under the curve of nomograms for OS and RFS were 0.820 and 0.747, respectively. Conclusion The nomograms based on LC3B can be considered as effective models to predict postoperative survival for ICC patients.
Effective length of counterpoise wire under lightning current
He, Jinliang,Gao, Yanqing,Zeng, Rong,Zou, Jun,Liang, Xidong,Zhang, Bo,Lee, Jaebok,Chang, S. IEEE 2005 IEEE transactions on power delivery Vol.20 No.2
In a high soil resistivity area, counterpoise wires are applied to decrease the grounding resistance of tower grounding devices. If the conductor of counterpoise wire is very long, although the power frequency grounding resistance of the tower grounding device is decreased, the lightning protection performance of the transmission line is still not good. The influences of the length of grounding electrodes on the lightning transient characteristic were analyzed. The dynamic and nonlinear effect of soil ionization around the grounding electrode was considered in the analysis model of transient characteristics for the grounding electrodes under lightning impulse. The counterpoise wire has an effective length when lightning passes through it. When the length of a grounding electrode exceeds the effective length, the grounding conductor will not be utilized effectively. The simulating experiments were performed to analyze influences of the length of the counterpoise wire on the impulse characteristics. The formulae to calculate the impulse effective lengths of counterpoise wires were proposed. The model proposed in the paper has been validated by comparing the numerical results with experimental tests.
Jin Liang,Lin Cao,Liang Zhang,Xiao-chun Wan 한국식품과학회 2014 Food Science and Biotechnology Vol.23 No.2
Folate conjugated chitosan coated EGCGnanoparticles (FCS-EGCG-NPs) were prepared using theionic gelation method with folic acid modified carboxymethylchitosan (FA-CMC) and chitosan hydrochloride as carriersof catechin EGCG. Characteristics of FCS-EGCG-NPswere determined using transmission electron microscopy(TEM) and fourier transform infrared spectroscopy (FTIR). Synthesized FCS-EGCG-NPs were spherical in shape witha mean diameter of 400 nm. The maximum encapsulationrate of nanoparticles loaded with EGCG was 75%. FTIRspectra suggested formation of an amide linkage betweencarboxyl groups of FA-CMC and the amine groups ofchitosan hydrochloride. FCS-EGCG-NPs demonstratedsustained release of EGCG in buffer solutions of differentpH values. The antitumor activity of FCS-EGCG-NPstowards different cancer cells was also investigated. FCSEGCG-NPs had a greater tumor inhibition effect on cancercells having a large expression of folic acid receptors onthe surface than cancer cells with lesser expression.
Jin Liang,Hua Yan,양한주,김혜원,Xiao-chun Wan,이진희,고상훈 한국식품과학회 2016 Food Science and Biotechnology Vol.25 No.6
A nano-sized double-walled carrier composed of chitosan and β-lactoglobulin (β-Lg) for oral administration of epigallocatechin gallate (EGCG) was developed to achieve a prolonged release of EGCG in the gastrointestinal tract. Carboxymethyl chitosan (CMC) solution was added dropwise to chitosan hydrochloride (CHC) containing EGCG to form a primary coating by ionic complexation. Subsequently, β-Lg was added to create a secondary layer by ionic gelation. The obtained EGCG-loaded chitosan/β-Lg nanoparticles had sizes between 100 and 500 nm and zeta potentials ranging from 10 to 35mV. FT-IR spectroscopy revealed a high number of hydrogen-bonding sites in the nanoparticles, which could incorporate EGCG, resulting in high encapsulation efficiency. EGCG incorporated in the primary coating was released slowly over time by diffusion from the swollen CMC-CHC matrix after the outer layer of β-Lg was degraded in the intestinal fluid. The sustained-release property makes chitosan/ β-Lg nanoparticles an attractive candidate for effective delivery of EGCG.