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| 1 | 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 |
| 2 | Tenascin C upregulates interleukin-6 expression in human cardiac myofibroblasts via toll-like receptor 4显示文摘AIM:To investigate the effect of Tenascin C(TNC)on the expression of pro-inflammatory cytokines and matrixmetalloproteinases in human cardiac myofibroblasts(CMF).METHODS:CMF were isolated and cultured from patients undergoing coronary artery bypass grafting.Cultured cells were treated with either TNC(0.1μmol/L,24 h)or a recombinant protein corresponding to different domains of the TNC protein;fibrinogen-like globe(FBG)and fibronectin typeⅢ-like repeats(TNⅢ5-7)(both 1μmol/L,24 h).The expression of the proinflammatory cytokines;interleukin(IL)-6,IL-1β,TNFαand the matrix metalloproteinases;MMPs(MMP1,2,3,9,10,MT1-MMP)was assessed using real time RT-PCR and western blot analysis.RESULTS:TNC increased both IL-6 and MMP3(P<0.01)mR NA levels in cultured human CMF but had no significant effect on the other markers studied.The increase in IL-6 mR NA expression was mirrored by an increase in protein secretion as assessed by enzymelinked immunosorbant assay(P<0.01).Treating CMF with the recombinant protein FBG increased IL-6mR NA and protein(P<0.01)whereas the recombinant protein TNⅢ5-7 had no effect.Neither FBG nor TNⅢ5-7 had any significant effect on MMP3 expression.The expression of toll-like receptor 4(TLR4)in human CMF was confirmed by real time RT-PCR,western blot and immunohistochemistry.Pre-incubation of cells with TLR4neutralising antisera attenuated the effect of both TNC and FBG on IL-6 mR NA and protein expression.CONCLUSION:TNC up-regulates IL-6 expression in human CMF,an effect mediated through the FBG domain of TNC and via the TLR4 receptor. | Azhar Maqbool Emma J Spary Iain W Manfield Michaela Ruhmann Lorena Zuliani-Alvarez Filomena O Gamboa-Esteves Karen E Porter Mark J Drinkhill Kim S Midwood Neil A Turner | 2016 | World Journal of Cardiology2016,8,5: | 4 |
| 3 | Nat Genet:单基因突变导致过敏性皮炎的发生显示文摘最近,研究者们鉴定出了一类导致神经性皮炎发生的关键基因突变:CARDll。来自美国NIH过敏与传染病研究所的研究者们通过对四个没有血缘关系的患病家庭进行分析,发现了这一导致疾病产生的基因、 | Chi A Ma, Yuan Zhang, Michael A Weinreich, Jonathan J Lyons, Celeste G Nelson, Thomas DiMaggio, Kelly D Stone, Joshua D Milner Jeffrey R Stinson, Elisa Ruffo, Batsukh Dorjbal, Swadhinya Arjunaraja, Kelsey Voss, Andrew L Snow Jordan K Abbott, Pia J Hauk, Paul R Reynolds, Erwin W Gelfand Elisa Ruffo Salomé Glauzy, Natsuko Yamakawa, Eric Meffre Jennifer Stoddard, Julie Niemela, Sergio D Rosenzweig Yu Zhang, Helen F Matthews Joshua J McElwee Nina Jones Alejandro Palma, Matías Oleastro, Emma Prieto, Andrea R Bernasconi, Geronimo Dubra, Silvia Danielian, Jonathan Zaiat, Marcelo A Marti Brian Kim Megan A Cooper Neil Romberg | 2017 | 现代生物医学进展2017,17,27: | 3 |
| 4 | 干骺端固定解剖型非骨水泥柄结合陶瓷对陶瓷全髋关节置换治疗30岁以下患者的临床结果显示文摘年轻患者全髋关节置换手术方式还存在争议。作者分析了96例(127髋)30岁以下患者采用干骺端固定解剖型非骨水泥柄结合陶瓷对陶瓷全髋关节置换的治疗结果。随访10~16年,Harris评分、WOMAC评分、UCLA评分分别为95、16、8分。手术1年后,没有发生疼痛,所有股骨柄均未发现松动。无关节异响、陶瓷碎裂、松动以及骨溶解等并发症。因此作者认为, | Kim Y H Park J W Kim J S 胡孔足 | 2012 | 临床骨科杂志2012,15,5: | 3 |
| 5 | Listeria monocytogenes following orthotopic liver transplantation:Central nervous system involvement and review of the literature显示文摘Listeria monocytogene is a well-recognized cause of bacteremia in immunocompromised individuals,including solid organ transplant recipients,but has been rarely reported following orthotopic liver transplantation. We describe a case of listeria meningitis that occurred within a week after liver transplantation. The patient developed a severe headache that mimicked tacrolimus encephalopathy,and was subsequently diagnosed with listeria meningitis by cerebrospinal fluid culture. The infection was successfully treated with three-week course of intravenous ampicillin. Recurrent hepatitis C followed and was successfully treated with interferon alfa and ribavirin. Fourteen cases of listeriosis after orthotopic liver transplantation have been reported in the English literature. Most reported cases were successfully treated with intravenous ampicillin. There were four cases of listeria meningitis,and the mortality of them was 50%. Early detection and treatment of listeria meningitis are the key to obtaining a better prognosis. | Shugo Mizuno Ivan R Zendejas Alan I Reed Robin D Kim Richard J Howard Alan W Hemming Denise C Schain Consuelo Soldevila-Pico Roberto J Firpi Shiro Fujita | 2007 | World Journal of Gastroenterology2007,13,32: | 2 |
| 6 | Characteristics of epitaxial ZnO films on sapphire substrates deposited using RF- magnetron Sputtering显示文摘 | Kin Y J Kim K W | 1997 | Jpn J Appl Phys1997,36,4: | 2 |
| 7 | Integron-encoded Intl integrases preferentially recognize the adjacent cognate attI site in recombination with a 59-be site 显示文摘 | Collis C M Kim M J Stokes H W | 2002 | Mol Microbiol2002,46,5: | 2 |
| 8 | 血根碱对肉鸡生长性能、相对器官重量、盲肠菌群、血清胆固醇水平以及肉品质的影响显示文摘研究旨在探索日粮添加血根碱(SGV)对肉鸡生长性能、相对器官重量、盲肠菌群、血清胆固醇水平和腿肌丙二醛含量的影响。选用840日龄雄性肉鸡(罗斯品种)饲养于28个稻草垫上,随机分为4个处理:玉米-豆粕型基础对照日粮、基础日粮中添加卑霉素10 ppm作为生长促进剂(AGP)、基础日粮中添加SGV 20 ppm(SGV20)和50 ppm(SGV50)。与饲喂基础日粮的肉鸡相比,基础日粮中添加AGP组、SGV20组和SGV50组的肉鸡最终体重(BW)、日增重、饲料转化率(FCR)显著改善(P<0.05)。与对照组相比,SGV20喂养组的肉鸡相对空肠重量显著降低(P<0.05),所有添加SGV组肉鸡相对空肠或回肠长度显著升高(P<0.05)。SGV20组较对照组肉鸡肠道菌群有所改变,尤其是盲肠乳酸菌数增加,但AGP组无改变。SGV20组或SGV50组肉鸡的总胆固醇水平较对照组显著降低(P<0.05),控制饮食物显著降低(P<0.05)。添加SGV后,作为脂质过氧化反应指示剂的腿肌丙二醛含量显著降低(P<0.05)。研究表明,在肉鸡日粮中补充SGV 20或50 ppm可以提高肉鸡生长性能,改变多种生物和生理参数,如相对器官重量、血清胆固醇水平、肠道菌群和肉品质。 | Lee K W Kim J S Oh S T Kang C W An B K | 2015 | 饲料博览2015,0,3: | 2 |
| 9 | Superplasticity in Thin Magnesium Alloy Sheet and Detormation Mechanism Maps for Magnesium Alloys at Elevated Temperatures显示文摘 | Kim W J Chung S W Kum D | 2001 | Acta Mater2001,,49: | 2 |
| 10 | Volume holographic wavelength demultiplexer based on rotation multiplexing in the 90° geometry显示文摘 | An J W Kim N Lee K W | 2001 | Opt Commun2001,197,: | 2 |
| 11 | Anaerobic bacteria and intrahepatic stones: detections of Clostridium sp. and Bacteroides fragilis显示文摘To detect anaerobic bacteria Clostridium sp . and Bacteroides fragilis in intrahepatic stones by molecular genetic method Methods DNA was extracted from 59 stone samples and subjected to polymerase chain reaction (PCR) amplification targeting the 16S rRNA gene of Clostridium sp . and the glutamine synthetase gene of Bacteroides fragilis Single-strand conformational polymorphism (SSCP) analysis was performed to identify the Clostridium sp Results 16S rRNA gene sequences for Clostridium sp. were identified in 49 stones (83%, 49/59) The two most common groups were detected in 19 (41%) and 17 (37%) of the 46 samples using SSPC analysis, and 25/59 (42%) stones were tested positive for Bacteroides fragilis Conclusions Anaerobes such as Clostridium sp and Bacteroides fragilis present in intrahepatic stones and may play a role in stone formation PCR is a useful technique to detect fastidious pathogens, which are difficult to culture SSCP of PCR products is a rapid method in differentiating bacterial | LIU Yanlei Kan Lam Yajarayma J Tang Paul H Gumerlock Dong Ki Lee Myung Hwa Kim Sum P Lee Joseph SilvaJr Joseph W Leung | 2000 | Chinese Medical Journal2000,,9: | 2 |
| 12 | Formation Mechanism of Ca-Si-Al-Mg-Ti-O inclusions in type 304 stainless steel 显示文摘 | Kim J W | 1996 | ISIJ Int1996,,: | 2 |
| 13 | Crystal structure and B-site ordering in antiferroelectric Pb(Mg1/2W1/2)O3,Pb(Co1/2@W1/2)O3 and Pb(Yb1/2Nb1/2)O3显示文摘 | CHOO W K KIM H J | 1993 | Jpn J Appl Phys1993,32,: | 2 |
| 14 | Antiferroelectric superstructures of Pb2MgWO6显示文摘 | YANG J H KIM H J CHOO W K | 1994 | Ferroelectrics1994,152,: | 2 |
| 15 | Formation characteristics of nitric oxide in a three-staged air/LPG flame显示文摘 | Kim H S Baek S W Yu M J | 2003 | International Journal of Heat and Mass Transfer2003,46,: | 2 |
| 16 | Removal of Trace VOCs from Water through PDMS Membranes and Analysis of Their Permeation Behaviors显示文摘 | C K Yeon H K Kim J W Rhim | 1999 | J App Polym Sci1999,73,: | 2 |
| 17 | Involvement of p27kip1 in ceramide-mediated apoptosis in HL-60 cells 显示文摘 | Kim W H Ghil K C Lee J H | 2000 | Cancer Letter2000,151,: | 2 |
| 18 | Unique gene expression program of human germinal center T helper cells 显示文摘 | Kim C H Lim H W Kim J R | 2004 | Blood2004,104,7: | 1 |
| 19 | Korea research sesquiterpene o-naphthoquinones from the root bark of Ulmus davidiana 显示文摘 | Kim J P Kim W G Koshino H | 1996 | Korea Phytochem1996,43,2: | 1 |
| 20 | Resistive switching behavior of Cr-doped SrZrO3 perovskite thin films for random access memory applications 显示文摘 | Yang M K Kim D Y Park J W | 2005 | J Korean Phy Soc2005,47,: | 1 |