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| 1 | Clinical significance of loss of heterozygosity for M6P/IGF2R in patients with primary hepatocellular carcinoma显示文摘AIM:To investigate the relationship between loss of heterozygosity (LOH) for mannose 6-phosphate/insulin- like growth factor 2 receptor (M6P/IGF2R) and the outcomes for primary HCC patients treated with partial hepatectomy. METHODS: The LOH for M6P/IGF2R in primary HCC patients was assessed using six different gene-specific nucleotide polymorphisms. The patients studied were enrolled to undergo partial hepatectomy. RESULTS: M6P/IGF2R was found to be polymorphic in 73.3% (22/30) of the patients, and of these patients, 50.0% (11/22) had tumors showing LOH in M6P/IGF2R. Loss of heterozygosity in M6P/IGF2R was associated with significant reductions in the two year overall survival rate (24.9% vs 65.5%; P = 0.04) and the disease-free survival rate (17.8% vs 59.3%; P = 0.03). CONCLUSION: These results show M6P/IGF2R LOH predicts poor clinical outcomes in surgically resected primary HCC patients. | Hong Seok Jang Ki Mun Kang Byung Ock Choi Gyu Young Chai Soon Chan Hong Woo Song Ha Randy L Jirtle | 2008 | World Journal of Gastroenterology2008，14，9： | 12 |
| 2 | Assessment of scoring systems for acute-on-chronic liver failure at predicting short-term mortality in patients with alcoholic hepatitis显示文摘AIM To assess the performance of proposed scores specific for acute-on-chronic liver failure in predicting shortterm mortality among patients with alcoholic hepatitis.METHODS We retrospectively collected data from 264 patients with clinically diagnosed alcoholic hepatitis from January to December 2013 at 21 academic hospitals in Korea. The performance for predicting short-term mortality was calculated for Chronic Liver FailureSequential Organ Failure Assessment(CLIF-SOFA), CLIF Consortium Organ Failure score(CLIF-C OFs), Maddrey'sdiscriminant function(DF), age, bilirubin, international normalized ratio and creatinine score(ABIC), Glasgow Alcoholic Hepatitis Score(GAHS), model for end-stage liver disease(MELD), and MELD-Na.RESULTS Of 264 patients, 32(12%) patients died within 28 d. The area under receiver operating characteristic curve of CLIF-SOFA, CLIF-C OFs, DF, ABIC, GAHS, MELD, and MELD-Na was 0.86(0.81-0.90), 0.89(0.84-0.92), 0.79(0.74-0.84), 0.78(0.72-0.83), 0.81(0.76-0.86), 0.83(0.78-0.88), and 0.83(0.78-0.88), respectively, for 28-d mortality. The performance of CLIF-SOFA had no statistically significant differences for 28-d mortality. The performance of CLIF-C OFs was superior to that of DF, ABIC, and GAHS, while comparable to that of MELD and MELD-Na in predicting 28-d mortality. A CLIF-SOFA score of 8 had 78.1% sensitivity and 79.7% specificity, and CLIF-C OFs of 10 had 68.8% sensitivity and 91.4% specificity for predicting 28-d mortality.CONCLUSION CLIF-SOFA and CLIF-C OF scores performed well, with comparable predictive ability for short-term mortality compared to the commonly used scoring systems in patients with alcoholic hepatitis. | Hee Yeon Kim Chang Wook Kim Tae Yeob Kim Do Seon Song Dong Hyun Sinn Eileen L Yoon Young Kul Jung Ki Tae Suk Sang Soo Lee Chang Hyeong Lee Tae Hun Kim Jeong Han Kim Hyung Joon Yim Sung Eun Kim Soon Koo Baik Byung Seok Lee Jae Young Jang Young Seok Kim Sang Gyune Kim Jin Mo Yang Joo Hyun Sohn Heon Ju Lee Seung Ha Park Eun Hee Choi Dong Joon Kim Korean Acute-on-Chronic Liver Failure Study Group | 2016 | World Journal of Gastroenterology2016，22，41： | 5 |
| 3 | Multiphase computed tomography radiomics of pancreatic intraductal papillary mucinous neoplasms to predict malignancy显示文摘BACKGROUND Intraductal papillary mucinous neoplasms(IPMNs)are non-invasive pancreatic precursor lesions that can potentially develop into invasive pancreatic ductal adenocarcinoma.Currently,the International Consensus Guidelines(ICG)for IPMNs provides the basis for evaluating suspected IPMNs on computed tomography(CT)imaging.Despite using the ICG,it remains challenging to accurately predict whether IPMNs harbor high grade or invasive disease which would warrant surgical resection.A supplementary quantitative radiological tool,radiomics,may improve diagnostic accuracy of radiological evaluation of IPMNs.We hypothesized that using CT whole lesion radiomics features in conjunction with the ICG could improve the diagnostic accuracy of predicting IPMN histology.AIM To evaluate whole lesion CT radiomic analysis of IPMNs for predicting malignant histology compared to International Consensus Guidelines.METHODS Fifty-one subjects who had pancreatic surgical resection at our institution with histology demonstrating IPMN and available preoperative CT imaging were included in this retrospective cohort.Whole lesion semi-automated segmentation was performed on each preoperative CT using Healthmyne software(Healthmyne,Madison,WI).Thirty-nine relevant radiomic features were extracted from each lesion on each available contrast phase.Univariate analysis of the 39 radiomics features was performed for each contrast phase and values were compared between malignant and benign IPMN groups using logistic regression.Conventional quantitative and qualitative CT measurements were also compared between groups,viaχ2(categorical)and Mann Whitney U(continuous)variables.RESULTS Twenty-nine subjects(15 males,age 71±9 years)with high grade or invasive tumor histology comprised the'malignant'cohort,while 22 subjects(11 males,age 70±7 years)with low grade tumor histology were included in the'benign'cohort.Radiomic analysis showed 18/39 precontrast,19/39 arterial phase,and 21/39 venous phase features differentiated malignant from benign IPMNs(P<0.05).Multivariate analysis including only ICG criteria yielded two significant variables:thickened and enhancing cyst wall and enhancing mural nodule<5 mm with an AUC(95%CI)of 0.817(0.709-0.926).Multivariable post contrast radiomics achieved an AUC(95%CI)of 0.87(0.767-0.974)for a model including arterial phase radiomics features and 0.834(0.716-0.953)for a model including venous phase radiomics features.Combined multivariable model including conventional variables and arterial phase radiomics features achieved an AUC(95%CI)of 0.93(0.85-1.0)with a 5-fold cross validation AUC of 0.90.CONCLUSION Multi-phase CT radiomics evaluation could play a role in improving predictive capability in diagnosing malignancy in IPMNs.Future larger studies may help determine the clinical significance of our findings. | Stuart L Polk Jung W Choi Melissa J McGettigan Trevor Rose Abraham Ahmed Jongphil Kim Kun Jiang Yoganand Balagurunathan Jin Qi Paola T Farah Alisha Rathi Jennifer B Permuth Daniel Jeong | 2020 | World Journal of Gastroenterology2020，26，24： | 5 |
| 4 | EXPERIMENTAL AND NUMERICAL INVESTIGATION OF BUBBLE AUGMENTED WATERJET PROPULSION显示文摘This contribution presents experimental and numerical investigations of the concept jet propulsion augmentation using bubble injection. A half-3D (D-shaped cylindrical configuration to enable optimal visualizations) divergent-convergent nozzle was designed, built, and used for extensive experiments under different air injection conditions and thrust measurement schemes. The design, optimization, and analysis were conducted using numerical simulations. The more advanced model was based on a two-way coupling between an Eulerian description of the flow field and a Lagrangian tracking of the injected bubbles using our Surface Averaged Pressure (SAP) model. The numerical results compare very favorably with nozzle experiments and both experiments and simulations validation the thrust augmentation concept. For a properly designed nozzle and air injection system, air injection produces net thrust augmentation, which increases with the rate of bubble injection. Doubling of thrust was measured for a 50% air injection rate. This beneficial effect remains at 50% after account for liquid pump additional work to overcome increased pressure by air injection. | CHOI Jin-Keun SINGH Sowmitra HSIAO Chao-Tsung CHAHINE Georges L | 2012 | Journal of Hydrodynamics2012，24，5： | 3 |
| 5 | A new techniques for measuring coupling coefficients and 3-D capacitance characterization of floating gate devices 显示文摘 | Choi W L Kim D M | 1994 | IEEE Trans ED1994，41，12： | 3 |
| 6 | SLC26A4 mutation testing for hearing loss associated with enlargement of the vestibular aqueduct显示文摘Pendred syndrome(PS) is characterized by autosomal recessive inheritance of goiter associated with a defect of iodide organification, hearing loss, enlargement of the vestibular aqueduct(EVA), and mutations of the SLC26A4 gene. However, not all EVA patients have PSor SLC26A4 mutations. Two mutant alleles of SLC26A4 are detected in 1/4 of North American or European EVA populations, one mutant allele is detected in another 1/4 of patient populations, and no mutations are detected in the other 1/2. The presence of two mutant alleles of SLC26A4 is associated with abnormal iodide organification, increased thyroid gland volume, increased severity of hearing loss, and bilateral EVA. The presence of a single mutant allele of SLC26A4 is associated with normal iodide organification, normal thyroid gland volume, less severe hearing loss and either bilateral or unilateral EVA. When other underlying correlations are accounted for, the presence of a cochlear malformation or the size of EVA does not have an effect on hearing thresholds. This is consistent with observations of an Slc26a4 mutant mouse model of EVA in which hearing loss is independent of endolymphatic hydrops or inner ear malformations. Segregation analyses of EVA in families suggest that the patients carrying one mutant allele of SLC26A4 have a second, undetected mutant allele of SLC26A4, and the probability of a sibling having EVA is consistent with its segregation as an autosomal recessive trait. Patients without any mutations are an etiologically heterogeneous group in which siblings have a lower probability of having EVA. SLC26A4 mutation testing can provide prognostic information to guide clinical surveillance and management, as well as the probability of EVA affecting a sibling. | Taku Ito Julie Muskett Parna Chattaraj Byung Yoon Choi Kyu Yup Lee Christopher K Zalewski Kelly A King Xiangming Li Philine Wangemann Thomas Shawker Carmen C Brewer Seth L Alper Andrew J Griffith | 2013 | World Journal of Otorhinolaryngology2013，3，2： | 2 |
| 7 | Bone induction by BMP-2 transduced stem cells derived from human fat显示文摘 | Dragoo J L Choi J Y Lieberman J R Huang J, Zuk P A, Zhang J, Hedrick M H, Benhaim P | | 0，，： | 2 |
| 8 | Heme oxugenase:colors of defense against cellular stress显示文摘 | OTTERBEIN L E CHOI A M | 2000 | AM J Physiol Lung Cell Mol Physiol2000，279，6： | 1 |
| 9 | A novel variant of Inpp5f is imprinted in brain, and its expression is correlated with differential methylation of an internal CpG island显示文摘 | Choi J D Underkoffler L A Wood A J | 2005 | Mol Cell Biol2005，25，13： | 1 |
| 10 | Progesterone inhibits invitro embryotoxic Th1 cytokine production to trophoblast in women with recurrent pregnancy loss显示文摘 | CHOI B C POLGAR K XIAO L | 2000 | Hum Reprod2000，15，1： | 1 |
| 11 | Optical coding of mammalian cells using semiconductor quantum dots 显示文摘 | Mattheakis L C Dias J M Choi Y J | 2004 | Anal Biochem2004，322，2： | 1 |
| 12 | Over expression of CD24:association with invasiveness in urothelial carcinoma of bladder显示文摘 | Choi Y L Lee S H Kwon G Y | 2007 | Arch Pathol Lab Med2007，131，2： | 1 |
| 13 | Catalytic properties of early transition metal nitrides and carbides:n-butane hydrogenolysis,dehydrogenation and isomerization显示文摘 | NEYLON M K CHOI S KWON H CURRY K E THOMPSON L T | 1999 | Appl Catal A1999，183，2： | 1 |
| 14 | On the microstructure of three-dimensional braided preform 显示文摘 | Chen L Tao X M Choy C L | 1999 | Composites Science and Technology1999，59，3： | 1 |
| 15 | Signaling through cyclin D-de- pendent kinases显示文摘 | Choi YJ Anders L | 2014 | Oncogene2014，33，15： | 1 |
| 16 | Regional estimates of radiated seismic energy显示文摘 | Boatwright J Choy G L Seekins L C | 2002 | Bull Seism Soc Amer2002，92，： | 1 |
| 17 | Effect of TiB2,TiC and TiN protective coatings on tensile strength and fracture behaviors of SiC monofilament fibres显示文摘 | Choy K L Durodolaj F Derby B | 1995 | Composites PartA1995，26，： | 1 |
| 18 | miR-200expression regulates epithelial-to-mesenchymal transition in bladder cancer cells and reverses resistance to epidermal growth factor receptor therapy显示文摘 | Adam L Zhong M Choi W | 2009 | Clin Cancer Res2009，15，16： | 1 |
| 19 | CD4 T cells are the only lymphocytes needed to protect mice against rotavirus shedding after intranasal immunization with achimeric VP6 protein and the adjuvant LT(R192G)显示文摘 | McNeal M M VanCott J L Choi A H | 2002 | J Virol2002，76，2： | 1 |
| 20 | A new design of polarcap differential codebook for temporally/spatially correlated MISO channels显示文摘 | Choi J Clerckx B Namyoon L | | 0，，02： | 1 |
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