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https://www.readbyqxmd.com/read/28588786/isolated-brain-metastases-prior-to-locoregional-recurrence-in-hilar-cholangiocarcinoma
#1
Zhimin Yu, Junyao Xu, Jie Wang
Isolated brain metastases prior to locoregional recurrence from hilar cholangiocarcinoma (HCCA) following curative resection are an extremely rare event. Very few reports regarding brain metastasis prior to locoregional recurrence following curative resection have been published due to the fact that to differentiate brain metastases from HCCA recurrence is challenging, particular in the early stages, since the neurological findings of brain metastasis are occult and subtle. Any patient with HCCA who has undergone radical resection and subsequently presented with a further onset of neurological symptoms should be evaluated for brain involvement...
June 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28420927/in-silico-analysis-of-fragile-histidine-triad-involved-in-regression-of-carcinoma
#2
Muhammad Asif Rasheed, Fatima Tariq, Sara Afzal, Shazia Mannanv
Hepatocellular carcinoma (HCCa) is a primary malignancy of the liver. Many different proteins are involved in HCCa including insulin growth factor (IGF) II , signal transducers and activators of transcription (STAT) 3, STAT4, mothers against decapentaplegic homolog 4 (SMAD 4), fragile histidine triad (FHIT) and selective internal radiation therapy (SIRT) etc. The present study is based on the bioinformatics analysis of FHIT protein in order to understand the proteomics aspect and improvement of the diagnosis of the disease based on the protein...
April 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28412280/evaluation-of-sample-preparation-protocols-for-spider-venom-profiling-by-maldi-tof-ms
#3
Ondřej Bočánek, Ondrej Šedo, Stano Pekár, Zbyněk Zdráhal
Spider venoms are highly complex mixtures containing biologically active substances with potential for use in biotechnology or pharmacology. Fingerprinting of venoms by Matrix-Assisted Laser Desorption-Ionization - Time of Flight Mass Spectrometry (MALDI-TOF MS) is a thriving technology, enabling the rapid detection of peptide/protein components that can provide comparative information. In this study, we evaluated the effects of sample preparation procedures on MALDI-TOF mass spectral quality to establish a protocol providing the most reliable analytical outputs...
July 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28238541/igg4-related-sclerosing-cholangitis-overlapping-with-autoimmune-hepatitis-report-of-a-case
#4
Hongyan Li, Li Sun, David R Brigstock, Lina Qi, Runping Gao
BACKGROUND: IgG4-related sclerosing cholangitis (IgG4-SC) is the biliary manifestation of IgG4-related disease (IgG4-RD) but the presence of IgG4-SC in the porta hepatis is difficult to differentiate from hilar cholangiocarcinoma (HCCA). IgG4-related autoimmune hepatitis (IgG4-related AIH) is extremely rare and it is not fully clear whether IgG4-related AIH is a hepatic manifestation of IgG4-RD or a subtype of AIH. CASE PRESENTATION: We present a rare case of a 52-year-old male who was admitted with obstructive jaundice and itchy skin...
May 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28059437/long-non-coding-rna-malat1-interacted-with-mir-204-to-modulates-human-hilar-cholangiocarcinoma-proliferation-migration-and-invasion-by-targeting-cxcr4
#5
Xinyu Tan, Zhiguo Huang, Xiaogang Li
Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) is involved in the development and progression of many types of tumors. An aberrant expression of MALAT1 was observed in many kinds of cancers. However, the exact effects and molecular mechanisms of MALAT1 in human hilar cholangiocarcinoma (HCCA) progression are still unknown. Here, we investigated the role of MALAT1 in human HCCA cell lines and clinical tumor samples in order to determine the function of this lncRNA. In our research, lncRNA-MALAT1 was specifically upregulated in HCCA tissues and cell lines, and was associated with pathological T stage, a larger tumor size and perineural invasion...
January 6, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28008757/identification-and-quantification-of-potential-anti-inflammatory-hydroxycinnamic-acid-amides-from-wolfberry
#6
Siyu Wang, Joon Hyuk Suh, Xi Zheng, Yu Wang, Chi-Tang Ho
Wolfberry or Goji berry, the fruit of Lycium barbarum, exhibits health-promoting properties that leads to an extensive study of their active components. We synthesized a set of hydroxycinnamic acid amide (HCCA) compounds, including trans-caffeic acid, trans-ferulic acid, and 3,4-dihydroxyhydrocinnamic acid, with extended phenolic amine components as standards to identify and quantify the corresponding compounds from wolfberry and to investigate anti-inflammatory properties of these compounds using in vitro model...
January 18, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27908774/increased-incorporation-of-gaseous-co2-into-succinate-by-escherichia-coli-overexpressing-carbonic-anhydrase-and-phosphoenolpyruvate-carboxylase-genes
#7
Soohyun Park, Jae-Ung Lee, Sukhyeong Cho, Hyeonsoo Kim, Han Bin Oh, Seung Pil Pack, Jinwon Lee
Carbon dioxide (CO2) is an abundant and cheap carbon source that is partly responsible for global warming in the atmosphere. The objective of this study was to construct a recombinant E. coli strain that can show enhanced production of succinate derived from CO2. In this study, we confirmed the enhancement of utilization by analyzing succinate containing one carbon-13 ((13)C) derived from (13)CO2. Firstly, the carbonic anhydrase gene (SP(-)HCCA) derived from Hahella chejuensis KCTC 2396 was over-expressed to enhance carbon flux toward bicarbonate ion (HCO3(-)) synthesis in E...
January 10, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/27750102/maldi-ms-analysis-and-theoretical-evaluation-of-olanzapine-as-a-uv-laser-desorption-ionization-ldi-matrix
#8
Syed Ghulam Musharraf, Mariam Ameer, Arslan Ali
Matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) being soft ionization technique, has become a method of choice for high-throughput analysis of proteins and peptides. In this study, we have explored the potential of atypical anti-psychotic drug olanzapine (OLZ) as a matrix for MALDI-MS analysis of peptides aided with the theoretical studies. Seven small peptides were employed as target analytes to check performance of olanzapine and compared with conventional MALDI matrix α-cyano-4-hydroxycinnamic acid (HCCA)...
January 5, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/27608843/dickkopf-1-expression-is-associated-with-tumorigenity-and-lymphatic-metastasis-in-human-hilar-cholangiocarcinoma
#9
Xiang-de Shi, Xian-Huan Yu, Wen-Rui Wu, Xiao-Lin Xu, Jie-Yu Wang, Lei-Bo Xu, Rui Zhang, Chao Liu
Dickkopf-1 (DKK1) is involved in tumorigenesis and the invasion of several tumors. However, its biological function in human hilar cholangiocarcinoma (HCCA) has not yet been documented. This study was designed to investigate the clinical significance and biological function of DKK1 in HCCA. The expression of DKK1 was investigated in thirty-seven human HCCA biopsy samples by immunohistochemistry. To further explore the biological effects of DKK1 in HCCA, transient and stable knockdown of DKK1 in two human HCCA cells (QBC939 and FRH0201) were established using small interfering or short hairpin RNA expression vector...
October 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/27452341/mitochondrial-compromise-in-3-year-old-patas-monkeys-exposed-in-utero-to-human-equivalent-antiretroviral-therapies
#10
Yongmin Liu, Eunwoo Shim Park, Alexander T Gibbons, Eric D Shide, Rao L Divi, Ruth A Woodward, Miriam C Poirier
Antiretroviral (ARV) drug therapy, given during pregnancy for prevention of mother-to-child transmission of human immunodeficiency virus 1 (HIV-1), induces fetal mitochondrial dysfunction in some children. However, the persistence/reversibility of that dysfunction is unclear. Here we have followed Erythrocebus patas (patas) monkey offspring for up to 3 years of age (similar in development to a 15-year old human) after exposure of the dams to human-equivalent in utero ARV exposure protocols. Pregnant patas dams (3-5/exposure group) were given ARV drug combinations that included zidovudine (AZT)/lamivudine (3TC)/abacavir (ABC), or AZT/3TC/nevirapine (NVP), for the last 10 weeks (50%) of gestation...
August 2016: Environmental and Molecular Mutagenesis
https://www.readbyqxmd.com/read/27373472/-operation-treatment-method-of-bismuth-corlette-%C3%A2-%C3%A2-hilar-cholangiocarcinoma
#11
Z Lu, D D Wang
Hilar cholangiocarcinoma (HCCA) is also known as cancer at the upper part of bile duct, perihilar cholangiocarcinoma or Klatskin tumor, etc.Bismuth-Corlette type Ⅲ hilar cholangiocarcinoma refers to tumor invading right hepatic duct (Ⅲa) or left hepatic duct (Ⅲb). While Bismuth-Corlette type Ⅳ hilar cholangiocarcinoma refers to both left and right intrahepatic bile ducts being invaded. Under the premise of strictly grasping the indications of surgery, if preoperative management is conducted carefully, extended hepatic resection is a safe and feasible surgery to remove Bismuth-Corlette type Ⅲ and type Ⅳ hilar cholangiocarcinoma...
July 1, 2016: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/27276221/strict-selection-alone-of-patients-undergoing-liver-transplantation-for-hilar-cholangiocarcinoma-is-associated-with-improved-survival
#12
Hendrik T J Mantel, Andrie C Westerkamp, René Adam, William F Bennet, Daniel Seehofer, Utz Settmacher, Francisco Sánchez-Bueno, Joan Fabregat Prous, Emmanuel Boleslawski, Styrbjörn Friman, Robert J Porte
Liver transplantation for hilar cholangiocarcinoma (hCCA) has regained attention since the Mayo Clinic reported their favorable results with the use of a neo-adjuvant chemoradiation protocol. However, debate remains whether the success of the protocol should be attributed to the neo-adjuvant therapy or to the strict selection criteria that are being applied. The aim of this study was to investigate the value of patient selection alone on the outcome of liver transplantation for hCCA. In this retrospective study, patients that were transplanted for hCCA between1990 and 2010 in Europe were identified using the European Liver Transplant Registry (ELTR)...
2016: PloS One
https://www.readbyqxmd.com/read/27154803/percutaneous-vs-endoscopic-pre-operative-biliary-drainage-in-hilar-cholangiocarcinoma-a-systematic-review-and-meta-analysis
#13
REVIEW
Ahmer Hameed, Tony Pang, Judy Chiou, Henry Pleass, Vincent Lam, Michael Hollands, Emma Johnston, Arthur Richardson, Lawrence Yuen
BACKGROUND: The strategy for preoperative management of biliary obstruction in hilar cholangiocarcinoma (HCCA) patients with regards to drainage by endoscopic (EBD) or percutaneous (PTBD) methods is not clearly defined. The aim of this study was to investigate the utility, complications and therapeutic efficacy of these methods in HCCA patients, with a secondary aim to assess the use of portal vein embolization (PVE) in patients undergoing drainage. METHODS: Studies incorporating HCCA patients undergoing biliary drainage prior to curative resection were included (EMBASE and Medline databases)...
May 2016: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/27062713/intraoperative-frozen-section-analysis-of-the-proximal-bile-ducts-in-hilar-cholangiocarcinoma-is-of-limited-value
#14
Hendrik T J Mantel, Andrie C Westerkamp, Egbert Sieders, Paul M J G Peeters, Koert P de Jong, Marieke T Boer, Ruben H de Kleine, Annette S H Gouw, Robert J Porte
Frozen section analysis (FS) during cancer surgery is widely used to assess resection margins. However, in hilar cholangiocarcinoma (HCCA), FS may be less reliable because of the specific growth characteristics of the tumor. The aim of this study was to determine the accuracy and consequences of intraoperative FS of the proximal bile duct margins in HCCA. Between 1990 and 2014, 67 patients underwent combined extrahepatic bile duct resection and partial liver resection for HCCA with the use of FS. Sensitivity and specificity of FS was 68% and 97%, respectively...
July 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27049784/preoperative-cholangitis-and-future-liver-remnant-volume-determine-the-risk-of-liver-failure-in-patients-undergoing-resection-for-hilar-cholangiocarcinoma
#15
Dario Ribero, Giuseppe Zimmitti, Thomas A Aloia, Junichi Shindoh, Fabio Forchino, Marco Amisano, Guillaume Passot, Alessandro Ferrero, Jean-Nicolas Vauthey
BACKGROUND: The highest mortality rates after liver surgery are reported in patients who undergo resection for hilar cholangiocarcinoma (HCCA). In these patients, postoperative death usually follows the development of hepatic insufficiency. We sought to determine the factors associated with postoperative hepatic insufficiency and death due to liver failure in patients undergoing hepatectomy for HCCA. STUDY DESIGN: This study included all consecutive patients who underwent hepatectomy with curative intent for HCCA at 2 centers, from 1996 through 2013...
July 2016: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/26972709/characterizing-the-activation-of-the-wnt-signaling-pathway-in-hilar-cholangiocarcinoma-using-a-tissue-microarray-approach
#16
W Chen, J Liang, L Huang, J Cai, Y Lei, J Lai, L Liang, K Zhang
Hilar cholangiocarcinoma (HCCA) is an invasive hepatic malignancy that is difficult to biopsy; therefore, novel markers of HCCA prognosis are needed. Here, the level of canonical Wnt activation in patients with HCCA, intrahepatic cholangiocarcinoma (IHCC), and congenital choledochal cysts (CCC) was compared to understand the role of Wnt signaling in HCCA. Pathology specimens from HCCA (n=129), IHCC (n=31), and CCC (n=45) patients were used to construct tissue microarrays. Wnt2, Wnt3, β-catenin, TCF4, c-Myc, and cyclin D1 were detected by immunohistochemistry...
February 9, 2016: European Journal of Histochemistry: EJH
https://www.readbyqxmd.com/read/26972523/introduction-of-co3o4-into-activated-honeycomb-like-carbon-for-the-fabrication-of-high-performance-electrode-materials-for-supercapacitors
#17
Myeongjin Kim, Ilgeun Oh, Hyun Ju, Jooheon Kim
In this work, a three-dimensional hierarchical carbon framework/Co3O4 hybrid composite was fabricated. The three-dimensional hierarchical carbon framework was constructed by thermal vapor deposition on the silica nanosphere templates and etching these templates. The resulting carbon framework was activated using phosphoric acid to control its surface area and porosity. The degree of activation of the carbon framework was optimized by measuring the specific capacitance. The carbon framework electrode activated with 3 M phosphoric acid (HCCA(3)) exhibited the highest specific capacitance (134 F g(-1) at 10 mV s(-1))...
April 7, 2016: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/26971195/hepatocellular-carcinoma-on-cirrhosis-complicated-with-tumoral-thrombi-extended-to-the-right-atrium-results-in-three-cases-treated-with-major-hepatectomy-and-thrombectomy-under-hypothermic-cardiocirculatory-arrest-and-literature-review
#18
Benedetta Pesi, Francesco Giudici, Luca Moraldi, Gianfranco Montesi, Stefano Romagnoli, Fulvio Pinelli, Pierluigi Stefano, Giacomo Batignani
BACKGROUND: Hepatocellular carcinoma (HCC) with the presence of tumor thrombus in hepatic veins and vena cava, until the atrium (RATT), is correlated with poor prognosis and with risk of tricuspid valve occlusion, congestive heart failure, and pulmonary embolism. METHODS: Three patients with HCC on cirrhotic liver with RATT were studied. Operative technique, pre-operative and post-operative liver function tests, blood loss and transfusions, post-operative morbidity and mortality, and the overall survival and the disease free survival were analyzed...
March 12, 2016: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/26864519/polyalanine-a-practical-polypeptide-mass-calibration-standard-for-matrix-assisted-laser-desorption-ionization-mass-spectrometry-and-tandem-mass-spectrometry-in-positive-and-negative-mode
#19
Till Gruendling, Volker Sauerland, César Barahona, Corinna Herz, Ute Nitsch
RATIONALE: Mass calibration in matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) is currently obtained using mixtures of individual peptides. This procedure has several drawbacks, including laborious preparation, limited shelf life and unequal calibration mass spacing. Polyalanine, a simple to prepare polydisperse molar mass standard, alleviates these problems. METHODS: Polyalanine is prepared by the typical protocols for biological sample analytics...
March 30, 2016: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/26831059/dynamic-change-of-total-bilirubin-after-portal-vein-embolization-is-predictive-of-major-complications-and-posthepatectomy-mortality-in-patients-with-hilar-cholangiocarcinoma
#20
Qing Ou Yang, Sheng Zhang, Qing-Bao Cheng, Bin Li, Fei-Ling Feng, Yong Yu, Xiang-Ji Luo, Zhao-Fen Lin, Xiao-Qing Jiang
OBJECTIVES: This study aims to evaluate the role of dynamic change in total bilirubin after portal vein embolization (PVE) in predicting major complications and 30-day mortality in patients with hilar cholangiocarcinoma (HCCA). METHODS: Retrospective analysis of prospectively maintained data of 64 HCCA patients who underwent PVE before hepatectomy in our institution was used. Total bilirubin and other parameters were measured daily in peri-PVE period. The difference between them and the baseline value from days 0-5 to day -1 (∆D1) and days 5-14 to day -1 (∆D2) were calculated...
May 2016: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
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