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Lee HY, Kim ES, Lee YJ, Ha YJ, Cho KB, Park KS. Fatal outcome following gastric endoscopic submucosal dissection in a patient with liver cirrhosis. Endoscopy 2013; 44 Suppl 2 UCTN:E431-2. [PMID: 23258489 DOI: 10.1055/s-0032-1325858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
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Lee HY, Seong MW, Park SS, Hwang SS, Lee J, Park YS, Lee CH, Lee SM, Yoo CG, Kim YW, Han SK, Yim JJ. Diagnostic accuracy of Xpert® MTB/RIF on bronchoscopy specimens in patients with suspected pulmonary tuberculosis. Int J Tuberc Lung Dis 2013; 17:917-21. [PMID: 23621953 DOI: 10.5588/ijtld.12.0885] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE To determine the diagnostic accuracy of the Xpert® MTB/RIF assay using samples obtained through bronchoscopy in patients with suspected pulmonary tuberculosis (PTB). DESIGN We retrospectively reviewed the records of patients with suspected PTB for whom the Xpert MTB/RIF assay was performed on bronchoscopy specimens. The sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) for the diagnosis of active PTB were calculated for acid-fast bacilli (AFB) smear microscopy and the Xpert assay using culture of Mycobacterium tuberculosis from sputum or bronchoscopy specimens as a reference standard. RESULTS A total of 132 patients were included in the final analysis. Of these, 38 had culture-confirmed PTB. The sensitivity of the Xpert assay using bronchial washing or bronchoalveolar lavage (BAL) fluid for the diagnosis of PTB was 81.6%, and specificity was 100%. The PPV and NPV were 100% and 92.1%, respectively. The sensitivity and specificity of AFB smear microscopy were respectively 13.2% and 98.8%. CONCLUSION The Xpert assay on bronchoscopy specimens provided an accurate diagnosis of PTB in patients who had a negative AFB smear or who could not produce sputum.
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Lee HY, Heo YT, Lee SE, Hwang KC, Lee HG, Choi SH, Kim NH. Short communication: retinoic acid plus prolactin to synergistically increase specific casein gene expression in MAC-T cells. J Dairy Sci 2013; 96:3835-9. [PMID: 23587393 DOI: 10.3168/jds.2012-5945] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2012] [Accepted: 02/26/2013] [Indexed: 11/19/2022]
Abstract
Mammary alveolar (MAC-T) cells, an established bovine mammary epithelial cell line, are frequently used to investigate differentiation. A lactogenic phenotype in these cells is induced by treatment with a combination of hydrocortisone, insulin, and prolactin (PRL). The effect of the vitamin A derivative retinoic acid (RA), which induces differentiation in many cells, has not been studied in MAC-T cells. The objective of this study was to evaluate the differentiation potential of RA (1 μM) in MAC-T cells and to examine the effect of combined treatment with RA (1 μM) and PRL (5 μg/mL). Although RA treatment alone inhibited MAC-T cell proliferation, co-treatment of RA with PRL increased cell growth compared with the control group (treated with 1 μg/mL hydrocortisone and 5 μg/mL insulin). The ratio of Bcl to Bax mRNA was decreased in the RA treatment compared with RA+PRL or control. Retinoic acid-induced differentiation of MAC-T cells was associated with an increase in the mRNA expression of αS1-casein (3.9-fold), αS2-casein (4.5-fold), and β-casein (4.4-fold) compared with the control group. Expression of αS1-casein, αS2-casein, and β-casein was increased 12.9-fold, 11.9-fold, and 19.3-fold, respectively, following treatment with RA and PRL combined compared with the control group. These results demonstrate that RA induces differentiation of MAC-T cells and acts synergistically with PRL to increase specific casein gene expression.
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Park CW, Lee HY, Cho JH, Won MH. Differences of calcium binding protein immunoreactivities in the young hippocampal CA1 region from the adult following transient ischemic damage. Crit Care 2013. [PMCID: PMC3642642 DOI: 10.1186/cc12256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
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Lee HY, Chai LC, Pui CF, Mustafa S, Cheah YK, Nishibuchi M, Radu S. Formation of biofilm by Listeria monocytogenes ATCC 19112 at different incubation temperatures and concentrations of sodium chloride. Braz J Microbiol 2013; 44:51-5. [PMID: 24159283 PMCID: PMC3804177 DOI: 10.1590/s1517-83822013005000004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2010] [Accepted: 09/30/2012] [Indexed: 12/04/2022] Open
Abstract
Biofilm formation can lead to various consequences in the food processing line such as contamination and equipment breakdowns. Since formation of biofilm can occur in various conditions; this study was carried out using L. monocytogenes ATCC 19112 and its biofilm formation ability tested under various concentrations of sodium chloride and temperatures. Cultures of L. monocytogenes ATCC 19112 were placed in 96-well microtitre plate containing concentration of sodium chloride from 1–10% (w/v) and incubated at different temperature of 4 °C, 30 °C and 45 °C for up to 60 h. Absorbance reading of crystal violet staining showed the density of biofilm formed in the 96-well microtitre plates was significantly higher when incubated in 4 °C. The formation of biofilm also occurs at a faster rate at 4 °C and higher optical density (OD 570 nm) was observed at 45 °C. This shows that storage under formation of biofilm that may lead to a higher contamination along the processing line in the food industry. Formation of biofilm was found to be more dependent on temperature compared to sodium chloride stress.
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Bhandary B, Lee HY, Back HI, Park SH, Kim MG, Kwon JW, Song JY, Lee HK, Kim HR, Chae SW, Chae HJ. Immature Rubus coreanus Shows a Free Radical-Scavenging Effect and Inhibits Cholesterol Synthesis and Secretion in Liver Cells. Indian J Pharm Sci 2013; 74:211-6. [PMID: 23440938 PMCID: PMC3574530 DOI: 10.4103/0250-474x.106062] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Revised: 05/16/2012] [Accepted: 05/20/2012] [Indexed: 11/12/2022] Open
Abstract
Rubus coreanus fruits have been employed as a traditional medicine for centuries in the Asia-Pacific region. Its pharmacological action differs according to the different extraction methods utilized and the degree of fruit ripening. In this study, we determined the cellular effect of different ethanol extracts of mature and immature Rubus coreanus fruits in human hepatic cell line, HepG2 cells. The antioxidant activity, effect on superoxide dismutase activity and cholesterol biosynthesis efficiency was also evaluated. Immature Rubus coreanus extract showed higher antioxidant capability, compared with that of its mature fractions. Cellular antioxidant proteins including HO-1, Cu/Zn-superoxide dismutase and catalase were highly expressed in the presence of Rubus coreanus. Cholesterol levels in HepG2 cells treated with the water fraction of immature Rubus coreanus were significantly reduced. This antihyperlipidaemic action of Rubus coreanus is a consequence of cholesterol biosynthesis and extracellular secretion in HepG2 cells. These results indicate that among different ethanol fraction of mature and immature Rubus coreanus fruit extracts, water extract of immature fruit extract shows higher antioxidant as well as higher antihyperlipidaemic action.
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Lee HY, Kim HS, Park JW, Baek HJ, Kim SJ, Choi CG. Atypical imaging features of Epstein-Barr virus-positive primary central nervous system lymphomas in patients without AIDS. AJNR Am J Neuroradiol 2013; 34:1562-7. [PMID: 23413244 DOI: 10.3174/ajnr.a3429] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Recent clinical experience with EBV-positive PCNSL in patients without acquired immune deficiency syndrome showed that they tended to have atypical features seen on conventional MR imaging. The purpose of our study was to evaluate the MR imaging features of EBV-positive PCNSL in patients without AIDS and to compare these imaging findings with those of EBV-negative PCNSL. MATERIALS AND METHODS MR images were obtained in 55 consecutive patients with pathologically proved EBV-positive (n = 10) or EBV-negative (n = 45) PCNSL. We statistically analyzed the differences between the patient groups regarding the occurrence of tumor necrosis or hemorrhage and ADC, rCBVmax, rCBVr, and the Cho/NAA ratio in the tumor area. RESULTS Tumor necrosis and hemorrhage were observed in 9 (90%) and 7 (70%), respectively, of the patients with EBV-positive PCNSL; necrosis was observed in 8 (18%), and hemorrhage, in 3 (7%) patients with EBV-negative PCNSL (P < .0001 each). The necrotic core was hyperintense relative to contralateral white matter, as seen on DWI in 4 patients with EBV-positive PCNSL, though the ADC between the 2 patient groups did not differ significantly. rCBVmax, rCBVr, and the Cho/NAA ratios did not differ significantly between the 2 groups. The sensitivity and specificity of necrosis and hemorrhage for differentiating the 2 groups were 89.2% and 81.7% and 78.5% and 94.1%, respectively. CONCLUSIONS Our initial clinical experience with a small number of patients suggests that EBV-positive PCNSL in patients without AIDS tends to present with atypical MR imaging features.
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Lee HY, Dunant A, Sekula P, Mockenhaupt M, Wolkenstein P, Valeyrie-Allanore L, Naldi L, Halevy S, Roujeau JC. The role of prior corticosteroid use on the clinical course of Stevens-Johnson syndrome and toxic epidermal necrolysis: a case-control analysis of patients selected from the multinational EuroSCAR and RegiSCAR studies. Br J Dermatol 2013; 167:555-62. [PMID: 22639874 DOI: 10.1111/j.1365-2133.2012.11074.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are immunologically mediated, severe cutaneous adverse reactions involving cytotoxic T cells, natural killer cells and various mediators. In large studies, up to 15% of SJS/TEN occurred in patients with chronic corticosteroid use. It is unclear if this prior exposure to corticosteroids modified the disease course. OBJECTIVES To evaluate whether systemic corticosteroid usage prior to the onset of SJS/TEN modified the clinical course and outcome. If a disease-modifying effect is present, information from such an analysis may have implications on the therapeutic use of corticosteroids in SJS/TEN. METHODS This is a case-control study based on data collected in the EuroSCAR and RegiSCAR studies. Ninety-two cases of SJS/TEN with exposure to corticosteroids prior to the onset of disease, and 321 randomly selected SJS/TEN patients without prior exposure were included. Primary outcomes included progression of disease, disease severity and mortality. A secondary analysis of latency between the beginning of drug use and the onset of disease, based on exposure to a single high-risk drug, was also performed. RESULTS On multivariate analysis, cases with prior exposure to corticosteroids had a longer progression of disease by 2·2 days [95% confidence interval (CI) 1·1-3·2]. The disease severity and mortality outcome were unaffected. In addition, there is evidence that corticosteroids delayed the onset of SJS/TEN in patients with exposure to high-risk drugs by 7·1 days (CI -0·2 to 14·5). CONCLUSIONS The prior use of corticosteroids prolonged the period of disease progression without influencing the disease severity or mortality. In addition, when SJS/TEN is preceded by use of a single high-risk drug, the latency between the drug intake and the onset of SJS/TEN may also be increased. These findings suggest that corticosteroids have a mild impact on the course of SJS/TEN, and further studies are required to clarify any potential therapeutic effects.
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Yang JK, Park YJ, Kim KH, Lee HY, Min KC, Lee SM. Effect of co-existing copper and calcium on the removal of As(V) by reused aluminum oxides. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2013; 67:187-192. [PMID: 23128638 DOI: 10.2166/wst.2012.500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Among the various heavy metals, arsenic is frequently found in abandoned mine drainage and the environmental fate of arsenic in real aqueous solutions can be highly dependent on the presence of co-existing ions. In this study, removal of arsenate through adsorption on the reused aluminum oxide or through precipitation was investigated in a single and in a binary system as a function of pH and concentration. Different removal behaviors of arsenate were observed in the presence of different cations as well as a variation of the molar ratios of arsenate to cations. Co-operative effects on arsenate removal by precipitation in solution occurred with an increase of copper concentration, while a decrease of arsenate removal resulted in increasing calcium concentration. It was observed that the arsenate removal in the presence of calcium would be highly dependent on the molar ratios of both elements.
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Kobayashi S, Kado S, Oishi T, Ohshima S, Kagawa T, Nagae Y, Yamamoto S, Mizuuchi T, Nagasaki K, Okada H, Minami T, Estrada T, Murakami S, Lee HY, Minami T, Harada T, Nakamura Y, Konoshima S, Toushi K, Sano F. Density fluctuation measurements using beam emission spectroscopy on Heliotron J. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2012; 83:10D535. [PMID: 23126873 DOI: 10.1063/1.4734039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This paper describes the measurement of the density fluctuation using beam emission spectroscopy in Heliotron J, having the non-symmetrical helical-magnetic-axis configuration. In order to optimize the sightlines, the numerical calculations are carried out to estimate the spatial resolution and the observation location. When a tangential neutral beam is used as diagnostic one, suitable sightlines from the newly installed diagnostic port are selected whose spatial resolution Δρ is less than ± 0.07 over the entire plasma region. Modification of the interference filter and the detection systems enables us to measure the radial profile of the density fluctuation. Each of the three coherent modes due to the fast-ion-driven magnetohydrodynamic instabilities has different radial structure of the density fluctuation.
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Fusaro M, Fusaro M, Noale M, Tripepi G, D'angelo A, Miozzo D, Gallieni M, Study Group PV, Tsamelesvili M, Dimitriadis C, Papagianni A, Raidis C, Efstratiadis G, Memmos D, Mutluay R, Konca Degertekin C, Derici U, Deger SM, Akkiyal F, Gultekin S, Gonen S, Tacoy G, Arinsoy T, Sindel S, Sanchez-Perales C, Vazquez E, Merino E, Perez Del Barrio P, Borrego FJ, Borrego MJ, Liebana A, Krzanowski M, Janda K, Dumnicka P, Krasniak A, Sulowicz W, Kim YO, Yoon SA, Yun YS, Song HC, Kim BS, Cheong MA, Pasch A, Farese S, Floege J, Jahnen-Dechent W, Ohtake T, Ohtake T, Furuya R, Iwagami M, Tsutsumi D, Mochida Y, Ishioka K, Oka M, Maesato K, Moriya H, Hidaka S, Kobayashi S, Guedes A, Malho Guedes A, Pinho A, Fragoso A, Cruz A, Mendes P, Morgado E, Bexiga I, Silva AP, Neves P, Oyake N, Suzuki K, Itoh S, Yano S, Turkmen K, Kayikcioglu H, Ozbek O, Saglam M, Toker A, Tonbul HZ, Gelev S, Trajceska L, Srbinovska E, Pavleska S, Amitov V, Selim G, Dzekova P, Sikole A, Bouarich H, Lopez S, Alvarez C, Arribas I, DE Sequera P, Rodriguez D, Fusaro M, Fusaro M, Noale M, Tripepi G, D'angelo A, Miozzo D, Gallieni M, Study Group PV, Tanaka S, Kanemitsu T, Sugahara M, Kobayashi M, Uchida L, Ishimoto Y, Kotera N, Tanimoto S, Tanabe K, Hara K, Sugimoto T, Mise N, Goldstein B, Turakhia M, Arce C, Winkelmayer W, Zayed BED, Said K, Nishimura M, Nishimura M, Okamoto Y, Tokoro T, Nishida M, Hashimoto T, Iwamoto N, Takahashi H, Ono T, Nishimura M, Okamoto Y, Tokoro T, Sato N, Nishida M, Hashimoto T, Iwamoto N, Takahashi H, Ono T, Guedes A, Malho Guedes A, Cruz A, Morgado E, Pinho A, Fragoso A, Mendes P, Bexiga I, Silva AP, Neves P, Raimann J, Usvyat LA, Sands J, Levin NW, Kotanko P, Iwasaki M, Joki N, Tanaka Y, Ikeda N, Hayashi T, Kubo S, Imamura TA, Takahashi Y, Hirahata K, Imamura Y, Hase H, Claes K, Meijers B, Bammens B, Kuypers D, Naesens M, Vanrenterghem Y, Evenepoel P, Boscutti G, Calabresi L, Bosco M, Simonelli S, Boer E, Vitali C, Martone M, Mattei PL, Franceschini G, Baligh E, Zayed BED, Said K, El-Shafey E, Ezaat A, Zawada A, Rogacev K, Hummel B, Grun O, Friedrich A, Rotter B, Winter P, Geisel J, Fliser D, Heine GH, Makino JI, Makino KS, Ito T, Genovesi S, Santoro A, Fabbrini P, Rossi E, Pogliani D, Stella A, Bonforte G, Remuzzi G, Bertoli S, Pozzi C, Gallieni M, Pasquali S, Cagnoli L, Conte F, Santoro A, Buzadzic I, Tosic J, Dimkovic N, Djuric Z, Popovic J, Pejin Grubisa I, Barjaktarevic N, DI Napoli A, DI Lallo D, Salvatori MF, Franco F, Chicca S, Guasticchi G, Onofriescu M, Hogas S, Luminita V, Mugurel A, Gabriel V, Laura F, Irina M, Adrian C, Bosch E, Baamonde E, Culebras C, Perez G, El Hayek B, Ramirez JI, Ramirez A, Garcia C, Lago M, Toledo A, Checa MD, Taira T, Hirano T, Nohtomi K, Hyodo T, Chiba T, Saito A, Kim YK, Song HC, Choi EJ, Yang CW, Kim YS, Lim PS, Ming Ying W, Ya-Chung J, Zaripova I, Kayukov I, Essaian A, Nimgirova A, Young H, Dungey M, Watson EL, Baines R, Burton JO, Smith AC, Joki N, Iwasaki M, Tanaka Y, Kubo S, Hayashi T, Ikeda N, Yamazaki K, Hase H, Bossola M, Colacicco L, Scribano D, Vulpio C, Tazza L, Okada T, Okada N, Michibata I, Yura T, Montero N, Soler M, Pascual M, Barrios C, Marquez E, Rodriguez E, Orfila MA, Cao H, Arcos E, Comas J, Pascual J, Ferrario M, Garzotto F, Sironi T, Monacizzo S, Basso F, Garzotto F, Cruz DN, Moissl U, Tetta C, Signorini MG, Cerutti S, Ronco C, Mostovaya I, Grooteman M, Van den Dorpel M, Penne L, Van der Weerd N, Mazairac A, Den Hoedt C, Levesque R, Nube M, Ter Wee P, Bots M, Blankestijn P, Liu J, MA KL, Zhang X, Liu BC, Vladu ID, Mustafa R, Cana-Ruiu D, Vaduva C, Grauntanu C, Mota E, Singh R, Abbasian N, Stover C, Brunskill N, Burton J, Abbasian N, Herbert K, Bevington A, Brunskill N, Burton J, Wu M, Tang RN, Gao M, Liu H, Chen L, LV LL, Liu BC, Nikodimopoulou M, Liakos S, Kapoulas S, Karvounis C, Fedak D, Kuzniewski M, Paulina D, Kusnierz-Cabala B, Kapusta M, Solnica B, Sulowicz W, Junque A, Vicent ES, Moreno L, Fulquet M, Duarte V, Saurina A, Pou M, Macias J, Lavado M, Ramirez de Arellano M, Ryuzaki M, Nakamoto H, Kinoshita S, Kobayashi E, Takimoto C, Shishido T, Enia G, Torino C, Tripepi R, Panuccio V, Postorino M, Clementi A, Garozzo M, Bonanno G, Boito R, Natale G, Cicchetti T, Chippari A, Logozzo D, Alati G, Cassani S, Sellaro A, Zoccali C, Quiroga B, Verde E, Abad S, Vega A, Goicoechea M, Reque J, Lopez-Gomez JM, Luno J, Cabre Menendez C, Moles V, Vives JP, Villa D, Vinas J, Compte T, Arruche M, Diaz C, Soler J, Aguilera J, Martinez Vea A, De Mauri A, David P, Conte MM, Chiarinotti D, Ruva CE, De Leo M, Bargnoux AS, Morena M, Jaussent I, Chalabi L, Bories P, Dion JJ, Henri P, Delage M, Dupuy AM, Badiou S, Canaud B, Cristol JP, Fabbrini P, Sironi E, Pieruzzi F, Galbiati E, Vigano MR, Stella A, Genovesi S, Anpalakhan S, Anpalakhan S, Rocha S, Chitalia N, Sharma R, Kaski JC, Chambers J, Goldsmith D, Banerjee D, Cernaro V, Lacquaniti A, Lupica R, Lucisano S, Fazio MR, Donato V, Buemi M, Segalen I, Segalen I, Vinsonneau U, Tanquerel T, Quiniou G, Le Meur Y, Seibert E, Girndt M, Zohles K, Ulrich C, Kluttig A, Nuding S, Swenne C, Kors J, Werdan K, Fiedler R, Van der Weerd NC, Grooteman MP, Bots M, Van den Dorpel MA, Den Hoedt C, Nube MJ, Wetzels J, Swinkels DW, Blankestijn P, Ter Wee PM, Khandekar A, Khandge J, Lee JE, Moon SJ, Choi KH, Lee HY, Kim BS, Morena M, Tuaillon E, Jaussent I, Rodriguez A, Chenine L, Vendrell JP, Cristol JP, Canaud B, Sue YM, Tang CH, Chen YC, Sanchez-Perales C, Vazquez E, Segura P, Garcia Cortes MJ, Gil JM, Biechy MM, Liebana A, Poulikakos D, Shah A, Persson M, Banerjee D, Dattolo P, Amidone M, Amidone M, Michelassi S, Moriconi L, Betti G, Conti P, Rosati A, Mannarino A, Panichi V, Pizzarelli F, Klejna K, Naumnik B, Koc-Zorawska E, Mysliwiec M, Dimitrie S, Simona H, Mihaela O, Mugurel A, Gabriela O, Radu S, Octavian P, Adrian C, Akdam H, Akar H, Yenicerioglu Y, Kucuk O, Kurt Omurlu I, Goldsmith D, Thambiah S, Roplekar R, Manghat P, Manghat P, Fogelman I, Fraser W, Hampson G, Likaj E, Likaj E, Caco G, Seferi S, Rroji M, Barbullushi M, Thereska N, Onofriescu M, Hogas S, Luminita V, Mugurel A, Serban A, Carmen V, Cristian S, Silvia L, Covic A. Cardiovascular complications in CKD 5D. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Liu J, Liu J, Liu Y, Xu Y, Zhao X, Qian J, Sun B, Xing C, Kanda R, Hamada C, Nakano T, Wakabayashi K, Io H, Horikoshi S, Tomino Y, Ishimatsu N, Miyamoto T, Morimoto H, Nakamata J, Baba R, Kanegae K, Serino R, Kabashima N, Otsuji Y, Doi Y, Tamura M, Nakamata J, Morimoto H, Baba R, Ishimatsu N, Miyamoto T, Kanegae K, Serino R, Kabashima N, Otsuji Y, Doi Y, Tamura M, Kusumoto T, Fukami K, Yamagishi SI, Ueda S, Kaida Y, Hazama T, Nakayama Y, Ando R, Obara N, Okuda S, Tamura M, Matsumoto M, Miyamoto T, Kanegae K, Furuno Y, Serino R, Kabashima N, Otsuji Y, Bang-Gee H, Mazzotta L, Rosati A, Carlini A, Henriques VT, Zangiacomi Martinez E, Divino-Filho JC, Pecoits-Filho R, Cardeal Da Costa JA, Henriques VT, Henriques VT, Gama Axelsson T, Lindholm B, Carrero JJ, Heimburger O, Stenvinkel P, Qureshi AR, Akazawa M, Uno T, Kanda E, Maeda Y, Aktsiali M, Aktsiali M, Antonopoulou S, Tsiolaki K, Bakirtzi N, Patrinou A, Georgopoulou M, Liaveri P, Afentakis N, Tsirpanlis G, Hasegawa T, Nishiwaki H, Hirose M, Komukai D, Tayama H, Koiwa F, Yoshimura A, Lui SL, Lui S, Yung S, Tang C, Ng F, Lo WK, Chan TM, Koo HM, Doh FM, Yoo DE, Oh HJ, Yoo TH, Choi KH, Kang SW, Han DS, Han SH, Fernandes N, Fernandes N, Bastos MG, Gianotti Franco MR, Chaoubah A, Gloria Lima MD, Pecoits-Filho R, Divino-Filho JC, Qureshi AR, Kang S, Do J, Cho K, Park J, Yoon K, Chen JB, Cheng BC, Chen TC, Su YJ, Wu CH, Park Y, Jeon J, Tsikeloudi M, Pateinakis P, Patsatsi K, Manou E, Sotiriadis D, Tsakiris D, Teixeira L, Rodrigues A, Carvalho MJ, Cabrita A, Mendonca D, Kang S, Do J, Park J, Cho K, Yoon K, Bruschi M, Candiano G, Santucci L, Luzio S, Cannavo R, Ghiggeri GM, Verrina E, Varadarajan Y, Raju B, Cho KH, Do J, Kang S, Park JW, Yoon KW, Kim TW, Kimmel M, Braun N, Latus J, Alscher MD, Struijk D, Van Esch S, Krediet RT, Fernandes N, Van den Beukel T, Hoekstra T, Tirapani L, De Andrade Bastos K, Pecoits-Filho R, Qureshi AR, Bastos M, Dekker F, Divino-Filho JC, Yasuhisa T, Kanai H, Harada K, Kawai Y, Sugiyama H, Ito Y, Tsuruya K, Yoshida H, Maruyama H, Goto S, Nakayama M, Nakamoto H, Morinaga H, Matsuo S, Makino H, DI Gioia MC, Gallar P, Laso N, Rodriguez I, Cobo G, Oliet A, Hynostroza J, Herrero JC, Mon C, Ortiz M, Vigil A, Tomo T, Portoles J, Uta S, Uta S, Tato AM, Lopez-Sanchez P, Rivera M, Rodriguez-Pena R, Del Peso G, Ortega M, Felipe C, Tsampikaki E, Aperis G, Kaikis A, Paliouras C, Karvouniaris N, Maragaki M, Alivanis P, Kortus-Gotze B, Hoferhusch T, Hoyer J, Martino F, Kaushik M, Rodighiero MP, Creapldi C, Ronco C, Lacquaniti A, Lacquaniti A, Donato V, Fazio MR, Lucisano S, Cernaro V, Lupica R, Buemi M, Aloisi C, Uno T, Akazawa M, Kanda E, Maeda Y, Bavbek Ruzgaresen N, Secilmis S, Yilmaz H, Akcay A, Duranay M, Akalin N, Akalin N, Altiparmak MR, Trabulus S, Yalin AS, Ataman R, Serdengecti K, Schneider K, Bator B, Niko B, Braun N, Peter F, Ulmer C, Joerg L, Martin K, Dagmar B, German O, Fabian R, Juergen D, Stephan S, Dominik A, Latus J, Latus J, Ulmer C, Fritz P, Rettenmaier B, Hirschburger S, Segerer S, Biegger D, Lang T, Ott G, Kimmel M, Alscher MD, Braun N, Habib M, Korte M, Hagen M, Dor F, Betjes M, Habib M, Hagen M, Korte M, Zietse R, Dor F, Betjes M, Latus J, Latus J, Ulmer C, Fritz P, Rettenmaier B, Biegger D, Lang T, Ott G, Scharpf C, Kimmel M, Alscher MD, Braun N, Habib M, Korte M, Zietse R, Betjes M, Chang TI, Shin DH, Oh HJ, Kang SW, Han DS, Yoo TH, Han SH, Choi HY, Lee YK, Kim BS, Han SH, Yoo TH, Park HC, Lee HY, Horimoto N, Tuji K, Kitamura S, Sugiyama H, Makino H, Isshiki R, Isshiki R, Iwagami M, Tsutsumi D, Mochida Y, Ishioka K, Oka M, Maesato K, Moriya H, Ohtake T, Hidaka S, Kobayashi S, Higuchi C, Tanihata Y, Ishii M, Sugimoto H, Sato N, Kyono A, Ogawa T, Nishimura H, Otsuka K, Cho KH, Do JY, Kang S, Park JW, Yoon KW, Kim TW, Du Halgouet C, Latifa A, Anne Sophie V, Emmanuel D, Christine R, Francois V, Grzelak T, Czyzewska-Majchrzak L, Kramkowska M, Witmanowski H, Czyzewska K, Janda K, Krzanowski M, Dumnicka P, Sulowicz W, Rroji M, Seferi S, Barbullushi M, Likaj E, Petrela E, Thereska N, Cabiddu G, Dessi E, Arceri A, Laura P, Manca E, Conti M, Cao R, Pani A, Liao CT, Vega Vega O, Mendoza de la Garza A, Correa-Rotter R, Ueda A, Nagai K, Morimoto M, Hirayama A, Owada S, Tonozuka Y, Saito C, Saito C, Yamagata K, Matsuda A, Tayama Y, Ogawa T, Iwanaga M, Noiri C, Hatano M, Kiba T, Kanozawa K, Katou H, Hasegawa H, Mitarai T, Ros-Ruiz S, Ros-Ruiz S, Fuentes-Sanchez L, Jironda-Gallegos C, Gutierrez-Vilches E, Garcia-Frias P, Hernandez-Marrero D, Kang S, Lee S, Cho K, Park J, Yoon K, Do J, Lai X, Chen W, Guo Z, Braide M, Cristina V, Popa SG, Maria M, Eugen M, Martino F, DI Loreto P, DI Loreto P, Ronco C, Rroji M, Seferi S, Barbullushi M, Petrela E, Spahia N, Likaj E, Thereska N, Sanchez Macias LO, Sanchez Macias LO, Lares Castellanos KI, Hernandez Pacheco JA, Vega Vega O, Correa Rotter R, Pedro Ventura A, Olivia S, Teixeira L, Joana V, Francisco F, Maria Joao C, Antonio C, Rodrigues AS, Atas N, Erten Y, Erten Y, Onec K, Inal S, Topal S, Akyel A, Celik B, Okyay GU, Tavil Y, Zeiler M, Monteburini T, Agostinelli RM, Marinelli R, Santarelli S, Erten Y, Erten Y, Inal S, Onec K, Atas N, Okyay GU, Yaylaci C, Sahin G, Tavil Y, Guz G, Sindel S, Pinho A, Cabrita A, Malho Guedes A, Fragoso A, Carreira H, Pinto I, Bernardo I, Leao P, Janda K, Janda K, Krzanowski M, Kusnierz-Cabala B, Dumnicka P, Krasniak A, Chowaniec E, Tabor-Ciepiela B, Sulowicz W, Turkmen K, Ozbek O, Kayrak M, Samur C, Guler I, Tonbul HZ, Rusai K, Herzog R, Kratochwill K, Kuster L, Aufricht C, Meier CM, Fliser D, Schilling MK, Klingele M, Fukasawa M, Fukasawa M, Takeda M, Kamiyama M, Song YR, Kim HJ, Kim SG, Kim JK, Noh JW, Lee YK, Yoon JW, Koo JR. Peritoneal dialysis. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kim SJ, Lim HK, Lee HY, Choi CG, Lee DH, Suh DC, Kim SM, Kim JK, Krauss B. Dual-energy CT in the evaluation of intracerebral hemorrhage of unknown origin: differentiation between tumor bleeding and pure hemorrhage. AJNR Am J Neuroradiol 2012; 33:865-72. [PMID: 22241388 DOI: 10.3174/ajnr.a2890] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Detection of underlying tumor in patients with unknown-origin acute ICH may be difficult because acute hematoma may mask enhancement of tumor on postcontrast CT. We intended to investigate the clinical utility of DECT in differentiating tumor bleeding from pure ICH. MATERIALS AND METHODS Using a dual-source CT scanner, we obtained TNC single-energy and postcontrast DECT scans for 56 patients with unknown-origin spontaneous ICH. From the 2 sets of postcontrast DECT images obtained with different tube energy, EA (equivalent to conventional postcontrast CT), VNC, color-coded iodine overlay, fusion images of iodine overlay and VNC images were produced. The diagnostic performances of fusion, EA, and combined EA and TNC images for detecting underlying tumors were compared. RESULTS Of the 56 patients, 17 had primary or metastatic tumors (18 lesions) and 39 had nontumorous ICH. The sensitivities of fusion, EA, and combined EA and TNC images for detecting brain tumors were 94.4%, 61.1%, and 66.7%, respectively, and their specificities were 97.4%, 92.3%, and 89.7%, respectively. The areas under the ROC curves were 0.964, 0.786, and 0.842, respectively. Overall, the diagnostic performance of fusion images was significantly superior to EA (P = .006) and combined EA and TNC (P = .011) images. CONCLUSIONS DECT may be useful in detecting underlying tumors in patients with unknown-origin ICH.
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Cho JH, Park CW, Lee HY, Won MH. Neuronal damage using Fluoro-Jade B histofluorescence and gliosis in the striatum after various durations of transient cerebral ischemia in gerbils. Crit Care 2012. [PMCID: PMC3363721 DOI: 10.1186/cc10910] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
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Suh DC, Kim JL, Kim EH, Kim JK, Shin JH, Hyun DH, Lee HY, Lee DH, Kim JS. Carotid baroreceptor reaction after stenting in 2 locations of carotid bulb lesions of different embryologic origin. AJNR Am J Neuroradiol 2012; 33:977-81. [PMID: 22268083 DOI: 10.3174/ajnr.a2891] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The carotid bulb is innervated by the sinus nerve of Hering, a branch of the glossopharyngeal nerve, derived from the third pharyngeal arch. The aim of this study was to determine the frequency, predictors, and outcome of the carotid BR after carotid stent placement according to the location of the plaque lesion. MATERIALS AND METHODS Atherosclerotic carotid plaques of apical versus body lesions were prospectively analyzed in 95 consecutive patients who underwent carotid stent placement. Patients with hypertension after stent placement were excluded, and transient (<3 hours) and prolonged (3-24 hours) BR, together with AEs such as strokes and death, were assessed in the 2 lesion locations (apical versus body). Other factors known to affect the carotid baroreceptor were also investigated, and the results were analyzed by χ(2) or Mann-Whitney U tests. RESULTS Transient BR occurred in 30% of apical lesions in contrast to 70% of body lesions (P = .001). Transient BR showed a significant relationship to lesion location (P = .001), occurring most frequently in body lesions, and to the distance of maximum stenosis from the ICA ostium (P = .001). Hyperperfusion and AE rates (P = .076) in 1 month occurred more frequently in apical lesions. CONCLUSIONS The frequency of transient BR after carotid stent placement was lower in the apical region of the carotid bulb. Different cardiovascular disturbances after carotid stent placement can be attributed to anatomically different areas of the carotid bulb.
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Cho JH, Park CW, Lee HY, Won MH. Changes of ribosomal protein S3 immunoreactivity and its new expression in microglia in the mice hippocampus after lipopolysaccharide treatment. Crit Care 2012; 16. [PMCID: PMC3363720 DOI: 10.1186/cc10909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Reyes KB, Lee HY, Ng I, Goh KY. Abducens (sixth) nerve palsy presenting as a rare case of isolated brainstem metastasis from a primary breast carcinoma. Singapore Med J 2011; 52:e220-e222. [PMID: 22173259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Most isolated abducens (sixth) nerve palsies are ischaemic in nature. However, there are other causes that can mimic an abducens nerve palsy, which requires aggressive diagnostic management. A 56-year-old hypertensive woman presented with a right abduction deficit. Her past history revealed that she had undergone a mastectomy and completed a course of chemo- and radiation therapy for breast carcinoma. She was well until she develped binocular diplopia five months later. Magnetic resonance imaging showed a right pontine mass. Stereotactic biopsy was performed, and histopathology revealed a metastatic carcinoma that was compatible with an origin from the breast primary. We conclude that identifying and managing patients with metastatic lesions involves a multidisciplinary approach. Thorough history-taking and neuro-ophthalmologic evaluation would help physicians in establishing the primary differentials, which could not only be sight-saving but life-saving as well.
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Park SH, Do JY, Kim YH, Lee HY, Kim BS, Shin SK, Kim HC, Chang YK, Yang JO, Chung HC, Kim CD, Lee WK, Kim JY, Kim YL. Effects of neutral pH and low-glucose degradation product-containing peritoneal dialysis fluid on systemic markers of inflammation and endothelial dysfunction: a randomized controlled 1-year follow-up study. Nephrol Dial Transplant 2011; 27:1191-9. [DOI: 10.1093/ndt/gfr451] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
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Kurniawan D, Nor FM, Lee HY, Lim JY. Elastic properties of polycaprolactone at small strains are significantly affected by strain rate and temperature. Proc Inst Mech Eng H 2011; 225:1015-20. [DOI: 10.1177/0954411911413059] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Tensile tests were conducted on polycaprolactone at various strain rates and temperatures. Focusing on the mechanical properties within only the small-strain elastic region, i.e. up to the inflection point in the stress–strain diagram, it was found that strain rate and temperature had significant effects on the polymer. This finding implies that the effects of strain rate and temperature on the elastic properties of polycaprolactone should be considered in the design and manufacture of rigidity-sensitive, load-bearing applications, including use as biomaterial for scaffolds in tissue engineering applications.
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Ho HH, Siu CW, Lam YM, Lee HY, Tse HF. A rare case of severe aortic stenosis with preserved ejection fraction and normal transvalvular gradient. Int J Cardiol 2011; 149:e127-8. [PMID: 19608291 DOI: 10.1016/j.ijcard.2009.06.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2009] [Accepted: 06/18/2009] [Indexed: 10/20/2022]
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Lim PL, Ling ML, Lee HY, Koh TH, Tan AL, Kuijper EJ, Goh SS, Low BS, Ang LP, Harmanus C, Lin RT, Krishnan P, James L, Lee CE. Isolation of the first three cases of Clostridium difficile polymerase chain reaction ribotype 027 in Singapore. Singapore Med J 2011; 52:361-364. [PMID: 21633771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
INTRODUCTION The incidence of Clostridium (C.) difficile infection (CDI) was on the rise from 2001 to 2006 in Singapore. Recent unpublished data suggests that its incidence had remained stable or decreased in most local public hospitals between 2006 and 2010. It is, however, not known if the polymerase chain reaction (PCR) ribotype 027 strains have been circulating, although reports suggest that this strain is emerging in Asia, with the first cases reported from Japan in 2007, as well as in Hong Kong and Australia in 2009. We initiated a culture-based surveillance to detect this epidemic strain in Singapore. METHODS From September 2008 to December 2009, all non-duplicate toxin-positive stool samples from the three largest public hospitals in Singapore were collected for culture and further analysis. RESULTS Out of the 366 samples collected, 272 viable isolates were cultured. Of these, 240 tested toxin-positive and ten tested positive for the binary toxin gene; 35 different PCR ribotypes were found. Three isolates that tested positive for binary toxin contained the same PCR ribotyping pattern as the C. difficile 027 control strain. All three had the 18-bp deletion and single nucleotide tcdC deletion at position 117. Susceptibility testing was performed, demonstrating susceptibility to erythromycin and moxifloxacin. CONCLUSION We report the first three isolates of C. difficile 027 from Singapore. However, their susceptibility patterns are more consistent with the historical 027 strains. Rising CDI incidence may not be associated with the emergence of the epidemic 027 strain at this time.
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Kim SH, Hong JG, Gunter JC, Lee HY, Streiffer SK, Kingon AI. The Effect of RuO2/Pt Hybrid Bottom Electrode Structure on The Microstructure and Ferroelectric Properties of Sol-Gel Derived PZT Thin Films. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-493-131] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTFerroelectric PZT thin films on thin RuO2 (10, 30, 50nm)/Pt hybrid bottom electrodes were successfully prepared by using a modified chemical solution deposition method. It was observed that the use of a lOnm RuO2Pt bottom electrode reduced leakage current, and gave more reliable capacitors with good microstructure compare to the use of thicker RuO2/Pt bottom electrodes. Typical P-E hysteresis behavior was observed even at an applied voltage of 3V, demonstrating greatly improved remanence and coercivity. Fatigue and breakdown characteristics, measured at 5V, showed stable behavior, and only below 13-15% degradation was observed up to 1010 cycles. Thicker RuO2 layers resulted in high leakage current density due to conducting lead ruthenate or PZT pyrochlore-ruthenate and a rosette-type microstructure.
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Tan CH, Pua U, Liau KH, Lee HY. Mesenteric desmoid tumour masquerading as a fat-containing cystic mass. Br J Radiol 2011; 83:e200-3. [PMID: 20846976 DOI: 10.1259/bjr/68468861] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Mesenteric desmoid tumour (MDT) is an uncommon neoplasm that typically presents as a solid soft-tissue mass on cross-sectional imaging. MDT manifesting as a fat-containing cystic mass on CT has not been described in the literature. We report such an unusual case with clinicopathological correlation.
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Kim MK, Lee HY, Song IS, Lee JB, Kim GH, Yoo SM, Rho JY, White CS. A case of a giant mucocoele of the appendiceal stump presented with a palpable mass in the right thigh: pre-operative diagnosis based on characteristic multidetector CT findings. Br J Radiol 2011; 83:e220-3. [PMID: 20846981 DOI: 10.1259/bjr/98679856] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The pre-operative diagnosis of a mucocoele of the appendiceal stump (MAS) may be difficult owing to rarity and non-specific clinical presentation. However, a pre-operative diagnosis of a MAS is important to prevent widespread dissemination by inadvertent spillage of mucous contents. We describe a case of a MAS presenting with a palpable mass in the right thigh in which a pre-operative diagnosis was made by characteristic multidetector CT (MDCT) findings.
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Boo YK, Kim WC, Lee HY, Leem JH, Lee MH, Leem JS. Incidence trends in invasive uterine cervix cancer and carcinoma in situ in Incheon, South Korea. Asian Pac J Cancer Prev 2011; 12:1985-1988. [PMID: 22292638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023] Open
Abstract
INTRODUCTION This study examined trends of invasive uterine cervix cancer and carcinoma in situ (CIS) in terms of the incidence and mortality in Incheon over a twelve year period. METHODS Uterine cervical cancer data were retrieved from the Incheon Cancer Registry (ICR) and Korea Central Cancer Registry (KCCR) from 1997 to 2008. The time trends in age-standardized incidence rates (ASR) of invasive uterine cervix cancer patients and CIS were calculated and compared with the nation-wide cancer registry data for each year. Mortality/incidence (M/I) ratios according to age and the incidence of the pathologic subtype in Incheon each year were also examined, along with an international comparison. RESULTS A total of 3,096 cases of invasive cervical cancer and 2,079 cases of carcinoma in situ were analyzed from 1997 to 2008. The time trend incidence of the total ASR in uterine cervical cancer decreased from 25.7 in 1997 to 13.4 in 2008, but the incidence of CIS increased from 7.6 to 15.8 in same period. In invasive cancers, the age-specific incidence rates were highest in those in their sixties while patients in their forties showed highest CIS values. The mortality rate in ICR was 3.7 from 1998 to 2002. Compared to the other countries which have high risk factors for cervix cancer, the peak incidence zone was different in Incheon. CONCLUSION The ICR showed a decrease in the incidence of invasive cervical cancer that was similar to the nation-wide data. An early increase zone is a characteristic pattern in the age specific incidence curve. Early screening and a vaccination program should be activated for prevention of young age cervical cancer.
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