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Yan Zhong, Mei Yuan, Teng Zhang, Yu-Dong Zhang, Hai Li, Tong-Fu Yu
OBJECTIVE: The purpose of this study was to evaluate the prognostic impact of radiomic features from CT scans in predicting occult mediastinal lymph node (LN) metastasis of lung adenocarcinoma. MATERIALS AND METHODS: A total of 492 patients with lung adenocarcinoma who underwent preoperative unenhanced chest CT were enrolled in the study. A total of 300 radiomics features quantifying tumor intensity, texture, and wavelet were extracted from the segmented entire-tumor volume of interest of the primary tumor...
April 18, 2018: AJR. American Journal of Roentgenology
Takeshi Terabayashi, Katsuhiro Hanada, Kou Motani, Hidetaka Kosako, Mami Yamaoka, Toshihide Kimura, Toshimasa Ishizaki
During tumor invasion, cancer cells change their morphology and mode of migration based on communication with the surrounding environment. Numerous studies have indicated that paracrine interactions from non-neoplastic cells impact the migratory and invasive properties of cancer cells. Thus, these interactions are potential targets for anticancer therapies. In this study, we showed that the flavones member baicalein suppresses the motility of breast cancer cells that is promoted by paracrine interactions. First, we identified laminin-332 (LN-332) as a principle paracrine factor in conditioned medium from mammary epithelium-derived MCF10A cells that regulates the morphology and motility of breast adenocarcinoma MDA-MB-231 cells...
April 18, 2018: Genes to Cells: Devoted to Molecular & Cellular Mechanisms
Maria-Gabriela Alexandru, Diana Visinescu, Sergiu Shova, Willian X C Oliveira, Francesc Lloret, Miguel Julve
A new series of {FeIII2LnIII2} heterobimetallic squares of general formula [FeIII{HB(pz)3}(CN)(μ-CN)2Ln(pyim)x(NO3)2(H2O)y]2·zH2O [Ln = La (1), Gd (2), Tb (3) and Dy (4); {HB(pz)3}- = hydrotris(pyrazolyl)borate and pyim = 2-(1H-imidazol-2-yl)pyridine; x = 2, y = 0 (1), x = y = 1 (2-4) and z = 10 (1), 6 (2), 2.76 (3), 4 (4)] were synthesized by reacting the low-spin [FeIII{HB(pz)3}(CN)3]- complex anion with the preformed [LnIII(pyim)x(NO3)2(H2O)y]+ complex cation [formed in situ by mixing the lanthanide(iii) salt and the pyim ligand]...
April 18, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
Wen-Ping Wang, Song-Lin He, Yu-Shang Yang, Long-Qi Chen
The 8th edition of UICC/AJCC TNM staging for esophageal cancer will start in use since 2018. The nodal staging in this version of TNM system remains unchanged from the 7th edition that based on the number of lymph nodes (LN) involved, except the limited revision of the regional LN map. In this review, N staging revision was evaluated from its initially simple definition of negative (N0) and positive (N1) LN(s) to the current positive node number based proposal. Meanwhile the disadvantages of current N staging were discussed...
February 2018: Annals of Translational Medicine
Xian Lin, Shiman Yu, Kelei Guo, Xin Sun, Haiming Yi, Meilin Jin
Reassortment is a key driving force of the evolution and host adaptation of the influenza virus. A(H1N1)pdm2009 (pdm09), a novel H1N1 influenza viral subtype, caused a pandemic in 2009. The strain was established in pig herds and cocirculated with the highly pathogenic H5N1 avian influenza virus. The coexistence of pdm09 with H5N1 raises concerns that reassortment may cause the development of novel viral strains with unpredictable virulence. Given that the viral polymerase subunit PB2 is a determinant of host range and pathogenicity, and that the substantial amino acid differences in PB2 between pdm09 and H5N1, including positions 590/591 and 271, which are shown to play key roles in enhanced polymerase activity in mammalian host cells, we generated a reassortant virus containing PB2 derived from a pdm09 (A/Liaoning/1/2009, LN/09) to investigate if pdm09-derived PB2 can function in a heterologous avian virus isolate as an adaptive strategy, with H5N1 (A/duck/Hubei/hangmei01/2006, HM/06) as the backbone...
2018: Frontiers in Microbiology
P G Mody, G M Mody, A Assounga
There are varying observations on the influence of ethnicity on the clinical spectrum and response to treatment in lupus nephritis (LN). We studied a multiethnic South African LN cohort to determine the clinical manifestations, histological involvement and response to therapy. We reviewed the records of LN patients at Inkosi Albert Luthuli Central Hospital in Durban. There were 105 patients, 92.5% females and they comprised 49.1% Indians and 45.3% African Blacks. The mean age was 31.3 ± 12.5 years, and 41...
January 1, 2018: Lupus
Dylan Errulat, Bulat Gabidullin, Eva Hemmer, Muralee Murugesu
Two homodinuclear and one heterodinuclear lanthanide (Ln)-based complexes of the general formula [Ln2(bpm)(tfaa)6] (Ln = Eu (1), Tb (2), Eu-Tb (3), bpm = 2,2'-bipyrimidine, tfaa- = 1,1,1-trifluoroacetylacetonate) were synthesized and characterized via single-crystal photoluminescence (PL) spectroscopy and hyperspectral imaging. Complexes 1 and 2 crystallize in two polymorphic structures, while three polymorphs were isolated for 3, namely having needle-, plate-, and block-like morphologies. Single-crystal PL spectroscopy and imaging on Eu3+-containing 1 and 3 revealed polymorph-dependent J-splitting of the hypersensitive 5D0 -> 7F2 Eu3+ transition as well as electric-to-magnetic dipole emission intensity ratios...
April 17, 2018: Chemistry: a European Journal
Yannick O Alexandre, Scott N Mueller
Secondary lymphoid organs (SLO), including the spleen and lymph nodes (LN) are a meeting place for immune cells to initiate adaptive immune responses. Lymphocytes constantly circulate between SLO through the blood and lymph in search of their cognate antigen and are activated within the organized microarchitecture of SLO. Lymphoid stromal cells (LSC) of mesenchymal and endothelial origin construct and support the microarchitecture of SLO by defining distinct compartments and providing signals that can either promote or inhibit immune responses...
May 2018: Immunological Reviews
Xiang-He Kong, Qunyan Wu, Cong-Zhi Wang, Jianhui Lan, Zhi-Fang Chai, Changming Nie, Wei-Qun Shi
Separation of trivalent actinides (An(III)) and lanthanides (Ln(III)) is one of the most important steps in the spent nuclear fuel reprocessing. However, it is very difficult and challenging to separate them due to their similar chemical properties. Recently the pyridylpyrazole ligand (PypzH) has been identified to show good separation ability towards Am(III) over Eu(III). In this work, to explore the Am(III)/Eu(III) separation mechanism of PypzH at the molecular level, the geometrical structures, bonding nature, and thermodynamic behaviors of the Am(III) and Eu(III) complexes with PypzH ligands modified by alkyl chains (Cn-PypzH, n=2, 4, 8) have been systematically investigated using scalar relativistic density functional theory (DFT)...
April 17, 2018: Journal of Physical Chemistry. A
Daniel R Cooper, John A Capobianco, Jan Seuntjens
We report on the synthesis, characterization, and radioluminescence quantification of several new varieties of nanoparticles with the general composition β-NaLnF4, incorporating known luminescent activator/sensitizer pairs. Using Monte Carlo modeling to complement luminescence measurements, we have calculated the radioluminescence yields and intrinsic conversion efficiencies of colloidally-dispersed nanoparticles by comparison to an organic liquid scintillator. While five of the compositions had low to modest radioluminescence yields relative to bulk materials, colloidal β-Na(Lu0...
April 17, 2018: Nanoscale
Sara Ferrando-Martinez, Eirini Moysi, Amarendra Pegu, Sarah Andrews, Krystelle Nganou Makamdop, David Ambrozak, Adrian B McDermott, David Palesch, Mirko Paiardini, George N Pavlakis, Jason M Brenchley, Daniel Douek, John R Mascola, Constantinos Petrovas, Richard A Koup
LN follicles constitute major reservoir sites for HIV/SIV persistence. Cure strategies could benefit from the characterization of CD8+ T cells able to access and eliminate HIV-infected cells from these areas. In this study, we provide a comprehensive analysis of the phenotype, frequency, localization, and functionality of follicular CD8+ T cells (fCD8+) in SIV-infected nonhuman primates. Although disorganization of follicles was a major factor, significant accumulation of fCD8+ cells during chronic SIV infection was also observed in intact follicles, but only in pathogenic SIV infection...
April 16, 2018: Journal of Clinical Investigation
David Chukwuma Izuogu, Takefumi Yoshida, Haitao Zhang, Goulven Cosquer, Keiichi Katoh, Shuhei Ogata, Miki Hasegawa, Hiroyuki Nojiri, Marko Damjanović, Wolfgang Wernsdorfer, Tomoya Uruga, Toshiaki Ina, Brian K Breedlove, Masahiro Yamashita
Incorporating palladium in the first coordination sphere of acetato-bridged lanthanoid complexes, [Pd2Ln2(H2O)2(AcO)10]·2AcOH (Ln = Gd(1), Y(2), Gd0.4Y1.6(3), Eu(4)), led to significant bonding interactions between the palladium and the lanthanoid ions, which were demonstrated by experimental and theoretical methods. We found that electron density was donated from the d8 Pd2+ ion to Gd3+ ion in 1 and 3, leading to the observed slow magnetic relaxation by using local orbital locator (LOL) and X-ray absorption near edge structure (XANES)...
April 16, 2018: Chemistry: a European Journal
Megan M Herr, Sara J Schonfeld, Graça M Dores, Diana R Withrow, Margaret A Tucker, Rochelle E Curtis, Lindsay M Morton
Background: It is unclear whether the established association between cutaneous melanoma (CM) and lymphoid neoplasms (LNs) differs across LN subtypes. This study quantifies risk for developing CM after specific LNs and, conversely, for developing specific LNs after CM, as well as assessing clinical impact. Methods: We identified a cohort of Caucasian adults (age 20-83 years) initially diagnosed with CM or LN, as reported to 17 US population-based cancer registries, 2000-2014...
April 6, 2018: Journal of the National Cancer Institute
Zuhal Bayramoglu, Emine Caliskan, Zeynep Karakas, Deniz Tugcu, Serap Karaman, Ayper Somer, Manolya Kara, Ferhan Akıcı, Ibrahim Adaletli
OBJECTIVE: To determine the diagnostic utility of a vascularity index via superb microvascular imaging in lymph nodes of children with malignant lymphoma and acute lymphadenitis compared to normal lymph nodes. METHODS: We performed a retrospective study for multiparametric lymph node (LN) evaluation. Malignant lymphoma diagnosed via histopathological examination and lymph nodes receiving an acute lymphadenitis diagnosis based on clinical and laboratory findings constituted the study subgroups...
April 16, 2018: British Journal of Radiology
Rana Afifi, Benjamin Person, Riad Haddad
BACKGROUND: Lymph node (LN) retrieval and assessment is essential for accurate staging and treatment planning in colorectal cancer (CRC). According to U.S. National Cancer Institute recommendations, the minimal number of LNs needed for accurately staging of node-negative CRC is 12. Awareness and implementation of the guidelines has been shown to improve after assigning an opinion leader who has a special interest in CRC. OBJECTIVES: To evaluate the impact of dialogue between surgeons and pathologists in LN evaluation...
January 2018: Israel Medical Association Journal: IMAJ
Jia Tang, Takashi Saito
The present study was designed to investigate the effect of laminin-1 (LN-1 or LN-111) on an odontoblast-like cell line, MDPC-23. Wells of non-treated polystyrene plates were coated with various concentrations of LN-1 (0.1, 1, 10, and 100 µg/mL) and left to dry for 2 days. Water-coated surfaces were used as controls. MDPC-23 cell proliferation, differentiation and mineralization were evaluated in terms of the CCK-8 assay, ALP activity, real-time RT-PCR and Alizarin red staining. The data indicated that LN-1 promoted the proliferation of MDPC-23 cells in a concentration-dependent manner...
April 16, 2018: Journal of Oral Science
Opeyemi O Komolafe
A significant proportion of individuals with systemic lupus erythematosus (SLE) will have clinical or laboratory evidence of renal involvement at some point in the course of their disease. Lupus nephritis (LN) is one of the more important systemic manifestations of SLE and although progression to end-stage renal disease (ESRD) is not usually the norm, a significant minority of patients will do so, some in a rather dramatic fashion. It is in such instances that LN constitutes a true nephrologic emergency. Gratifyingly, it is rarely a silent emergency and heightened awareness amongst clinicians about its unpredictable course should lead to earlier recognition and intervention...
March 2018: Saudi Journal of Kidney Diseases and Transplantation
F Dumont, P Dartigues, B Delga, E Thibaudeau, L Benhaim, L Campion, J F Mosnier, J Raimbourg, O Kerdraon, D Goéré
BACKGROUND: The purpose of this study was to identify the predictive factors for ypN0 status in tumors with good pathologic response to chemoradiotherapy (CRT). METHODS: A retrospective chart review was conducted on patients at two tertiary cancer center who underwent rectal resection after good response to CRT between 2000 and 2013. RESULTS: No preoperative treatment (oxaliplatin use, radiotherapy boost of 5,4 Gy, delay CRT-surgery) impacted on the ypN status...
March 31, 2018: American Journal of Surgery
Tomoaki Yoh, Etsuro Hatano, Satoru Seo, Hiroaki Terajima, Yoichiro Uchida, Kojiro Taura, Kentaro Yasuchika, Shinji Uemoto
BACKGROUND: Imaging study cannot identify patients with potential low-risk for LN metastasis in intrahepatic cholangiocarcinoma (ICC). The purpose of this study was to identify a low-risk group for lymph node (LN) metastasis in ICC using preoperatively available factors. METHODS: Data from 127 consecutive patients, who underwent curative intent surgery for ICC at Kyoto University Hospital and Kitano Hospital between 2002 and 2016, were retrospectively analyzed. By using only preoperative data, multiple linear regression model for predicting LN metastasis was developed...
April 14, 2018: Journal of Hepato-biliary-pancreatic Sciences
Shao-Xu Wu, Jian Huang, Zhuo-Wei Liu, Hai-Ge Chen, Pi Guo, Qing-Qing Cai, Jun-Jiong Zheng, Hai-De Qin, Zao-Song Zheng, Xin Chen, Rui-Yun Zhang, Si-Liang Chen, Tian-Xin Lin
Preoperative lymph node (LN) status is important for the treatment of bladder cancer (BCa). Here, we report a genomic-clinicopathologic nomogram for preoperatively predicting LN metastasis in BCa. In the discovery stage, 325 BCa patients from TCGA were involved and LN-status-related mRNAs were selected. In the training stage, multivariate logistic regression analysis was used to developed a genomic-clinicopathologic nomogram for preoperative LN metastasis prediction in the training set (SYSMH set, n=178). In the validation stage, we validated the nomogram using two independent sample sets (SYSUCC set, n=142; RJH set, n=104) with respect to its discrimination, calibration and clinical usefulness...
March 31, 2018: EBioMedicine
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