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Fujita Y, Fujita H, Adachi T, Bai CL, Algora A, Berg GPA, von Brentano P, Colò G, Csatlós M, Deaven JM, Estevez-Aguado E, Fransen C, De Frenne D, Fujita K, Ganioğlu E, Guess CJ, Gulyás J, Hatanaka K, Hirota K, Honma M, Ishikawa D, Jacobs E, Krasznahorkay A, Matsubara H, Matsuyanagi K, Meharchand R, Molina F, Muto K, Nakanishi K, Negret A, Okamura H, Ong HJ, Otsuka T, Pietralla N, Perdikakis G, Popescu L, Rubio B, Sagawa H, Sarriguren P, Scholl C, Shimbara Y, Shimizu Y, Susoy G, Suzuki T, Tameshige Y, Tamii A, Thies JH, Uchida M, Wakasa T, Yosoi M, Zegers RGT, Zell KO, Zenihiro J. Observation of low- and high-energy Gamow-Teller phonon excitations in nuclei. PHYSICAL REVIEW LETTERS 2014; 112:112502. [PMID: 24702355 DOI: 10.1103/physrevlett.112.112502] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Indexed: 06/03/2023]
Abstract
Gamow-Teller (GT) transitions in atomic nuclei are sensitive to both nuclear shell structure and effective residual interactions. The nuclear GT excitations were studied for the mass number A = 42, 46, 50, and 54 "f-shell" nuclei in ((3)He, t) charge-exchange reactions. In the (42)Ca → (42)Sc reaction, most of the GT strength is concentrated in the lowest excited state at 0.6 MeV, suggesting the existence of a low-energy GT phonon excitation. As A increases, a high-energy GT phonon excitation develops in the 6-11 MeV region. In the (54)Fe → (54)Co reaction, the high-energy GT phonon excitation mainly carries the GT strength. The existence of these two GT phonon excitations are attributed to the 2 fermionic degrees of freedom in nuclei.
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Takahashi H, Kashiwagi N, Chikugo T, Nakanishi K, Tomita Y, Murakami T. Squamous cell carcinoma originating in the parotid gland: MRI features with histopathological correlation. Clin Radiol 2014; 69:41-4. [DOI: 10.1016/j.crad.2013.08.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Revised: 07/30/2013] [Accepted: 08/06/2013] [Indexed: 10/26/2022]
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Nagame Y, Nishinaka I, Tsukada K, Ichikawa S, Ikezoe H, Zhao YL, Oura Y, Sueki K, Nakahara H, Tanikawa M, Ohtsuki T, Takamiya K, Nakanishi K, Kudo H, Hamajima Y, Chung Y. Bimodal Nature of Low Energy Fission of Light Actinides. RADIOCHIM ACTA 2013. [DOI: 10.1524/ract.1997.78.special-issue.3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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54
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Otsuka K, Fukuda S, Shimada K, Nakanishi K, Taguchi H, Yoshikawa J, Yoshiyama M. Serial assessment of arterial stiffness by cardio-ankle vascular index for prediction of future cardiovascular events in patients with coronary artery disease. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.p1570] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Nakanishi K, Fukuda S, Shimada K, Miyazaki C, Otsuka K, Kawarabayashi T, Watanabe H, Yoshikawa J, Yoshiyama M. Prognostic value of coronary flow reserve on long-term cardiovascular outcomes in patients with chronic kidney disease. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p3841] [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: 11/15/2022] Open
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Nakanishi K, Fukuda S, Tanaka A, Ikuta T, Otsuka K, Matsumoto K, Inanami H, Yoshikawa J, Shimada K, Yoshiyama M. Augmented inflammation in pericoronary adipose tissue is associated with future acute coronary syndrome in patients with coronary artery disease. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht307.154] [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: 11/14/2022] Open
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Hongo M, Hidaka H, Sakaguchi S, Nakanishi K, Terasawa F, Izawa A, Yazaki Y, Ikeda U. Serum high-density lipoprotein cholesterol level and lifestyle habits among Japanese junior high school students. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.p1600] [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: 11/15/2022] Open
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Okamoto S, Sakama T, Nakamura S, Niimura F, Sahin S, Ertan P, Evrengul H, Horasan G, Dede B, Berdeli A, Yildiz N, Cicek Deniz N, Asadov R, Yucelten D, Alpay H, Prado G, Schoeneman M, Mongia A, Paudyal B, Feygina V, Norin A, Hochman D, Tawadrous H, Bansilal V, Topaloglu R, Gulhan B, Bilginer Y, Celebi Tayfur A, Yildiz C, Ozaltin F, Duzova A, Ozen S, Aki T, Besbas N, Komaki F, Hamasaki Y, Ishikura K, Hamada R, Sakai T, Hataya H, Ogata K, Fukuzawa R, Ando T, Honda M, Malke A, Silska-Dittmar M, Soltysiak J, Blumczynski A, Ostalska-Nowicka D, Zachwieja J, Tabel Y, Oncul M, Elmas A, Kavaz A, Ozcakar ZB, Bulum B, Ekim M, Yalcinkaya F, Prikhodina L, Turpitko O, Dlin V, Gheith O, Alotaibi T, Nampoory N, Mosaad A, Halim M, Saied T, Abou Ateya H, Adel H, Mozarei I, Neir P, Hamasaki Y, Uemura O, Ishikura K, Ito S, Wada N, Hattori M, Ohashi Y, Tanaka R, Nakanishi K, Kaneko T, Honda M, Golovachova V, Odinets Y, Laszki-Szczachor K, Polak-Jonkisz D, Sobieszczanska M, Rusiecki L, Zwolinska D, Ninchoji T, Kaitoh H, Matsunoshita N, Nozu K, Nakanishi K, Yoshikawa N, Iijima K, Maglalang-Reed OM, Elises JS, Zamora MNV, Pasco P, Arejola-Tan A, Alparslan C, Dogan SM, Kose E, Elmas C, Kilinc S, Arslan N, Kebabci E, Karaca C, Yavascan O, Aksu N, Minson S, Munoz M, Vergara I, Mraz M, Vaughan R, Rees L, Olsburgh J, Calder F, Shroff R, Zaicova N, Kavaz A, Ozcakar ZB, Bulum B, Ekim M, Yalcinkaya F, Lavrenchuk O, Viktoria D, Savchenko V, Bagdasarova I, Doyon A, Bayazit A, Canpolat N, Duzova A, Kracht D, Litwin M, Ranchin B, Shroff R, Sozeri B, Wuhl E, Zeller R, Melk A, Querfeld U, Schaefer F, Sinha MD, Turner C, Booth CJ, Goldsmith DJA, Simpson JM. Paediatric nephrology - A. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Saneyasu T, Shiragaki M, Nakanishi K, Kamisoyama H, Honda K. Effects of short term fasting on the expression of genes involved in lipid metabolism in chicks. Comp Biochem Physiol B Biochem Mol Biol 2013; 165:114-8. [PMID: 23499949 DOI: 10.1016/j.cbpb.2013.03.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 03/06/2013] [Accepted: 03/06/2013] [Indexed: 12/22/2022]
Abstract
The aim of this study was to analyze the expression patterns of key genes involved in lipid metabolism in response to short term fasting in chicks (Gallus gallus). The mRNA level of the genes was analyzed after 0, 2, and 4 h of fasting in the liver and white adipose tissue. In the liver, the mRNA level of peroxisome proliferator-activated receptor α was significantly increased after 2 h of fasting. The mRNA levels of carnitine palmitoyltransferase 1a and acyl-CoA oxidase were significantly increased after 4 h of fasting. In contrast, the mRNA levels of sterol regulatory element-binding protein 1, acetyl-CoA carboxylase α, and fatty acid synthase were significantly decreased after 4 h of fasting. The mRNA levels of cholesterol metabolism-related genes such as 3-hydroxy-3-methylglutaryl-CoA reductase and cholesterol 7α-hydroxylase were significantly decreased after 4 h of fasting. In the white adipose tissue, the mRNA level of adipose triglyceride lipase was significantly increased after 4 h of fasting. In contrast, the mRNA levels of peroxisome proliferator-activated receptor γ and lipoprotein lipase were significantly decreased after 4 h of fasting. These results demonstrated that the gene expression of lipid metabolism-related genes is regulated by short term fasting in both the liver and WAT in chicks.
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Ogawa S, Murakami S, Shirai K, Nakanishi K, Ohta T, Yagi S. NEXAFS Study of Air Oxidation for Mg Nanoparticle Thin Film. ACTA ACUST UNITED AC 2013. [DOI: 10.1088/1742-6596/417/1/012065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Matsumura Y, Nomura J, Nakanishi K, Yanase S, Kato H, Tagawa T. Synovial chondromatosis of the temporomandibular joint with calcium pyrophosphate dihydrate crystal deposition disease (pseudogout). Dentomaxillofac Radiol 2013; 41:703-7. [PMID: 23166363 DOI: 10.1259/dmfr/24183821] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
This report describes a very rare case of synovial chondromatosis with deposition of calcium pyrophosphate dihydrate (CPPD) crystals (pseudogout) in the temporomandibular joint (TMJ) of a 46-year-old male patient. Synovial chondromatosis is a non-neoplastic disease characterized by metaplasia of the connective tissue leading to chondrogenesis in the synovial membrane. Pseudogout is an inflammatory disease of the joints caused by the deposition of CPPD, producing similar symptoms to those observed in gout but not hyperuricaemia. Both diseases commonly affect the knee, hip and elbow joints, but rarely affect the TMJ.
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Oda T, Shimazaki H, Takahashi H, Endo H, Kawakami S, Miyai K, Tanaka Y, Tanaka S, Tamura A, Matsunobu T, Shiotani A, Nakanishi K, Tamai S. Polygonal cells with ceroid granules and myoepithelial cells in fine needle aspiration cytology of ceruminous adenoma. Cytopathology 2013; 25:67-8. [PMID: 23331622 DOI: 10.1111/cyt.12038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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63
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Oda T, Shimazaki H, Asai K, Yoshida M, Matsuda H, Takahashi H, Endo H, Minabe S, Nakanishi K, Tamai S. Lymphoblastic cells in serous effusions in fetal hydrops mimicking acute lymphoblastic leukaemia: a report of two cases. Cytopathology 2012; 25:51-3. [PMID: 23078033 DOI: 10.1111/cyt.12028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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64
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Takahashi H, Shimazaki H, Oda T, Endo H, Sekitsuka H, Maekawa K, Katsurada Y, Sato K, Ito K, Nakanishi K, Tamai S. Malignant lymphoma case with urinary cytology mimicking that of urothelial carcinoma. Cytopathology 2012; 24:412-4. [DOI: 10.1111/cyt.12026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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65
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Tanaka T, Kamimura R, Fujiwara R, Nakanishi K. Crossflow filtration of yeast broth cultivated in molasses. Biotechnol Bioeng 2012; 43:1094-101. [PMID: 18615521 DOI: 10.1002/bit.260431113] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
A broth of yeast cells cultivated in molasses was crossfiltered with a thin-channel module. The permeation flux gradually decreased at a constant cell concentration. The flux was much lower than that obtained for yeast broth cultivated in yeast extract, polypeptone, and dextrose (YPD) medium during the filtration. The flux did not depend on the membrane pore size (0.45 to 5 mum). The steady-state flux was one-twentieth that calculated for a cake filtration mode from the amount of cake per unit filtration area and the specific resistance of the cake measured in a dead-end filtration apparatus. The lower flux was due to small particles (most of which were less than 1 mum in diameter) in the molasses. The mehanism of crossflow filtration of broths of yeast cells cultivated in molasses was clarified by analysis of the change in flux with time and observations with scanning electron microscopy. At the initial stage of crossflow filtration the yeast cells and particles from the molasses were deposited on the membrane to form the molasses were deposited on the membrane to form a cake in a similar way to dead-end filtration. After the deposition of cells onto the membrane ceased, the fine particles from molasses formed a thin layer, which had higher resistance than the cake formed next to the membrane. The backwashing method was effective to increase the flux. The flux increased low when the pore size was 0.45 to 0.08 mum, but using larger pores of 3 to 5 mum it returned almost to the bases line. (c) 1994 John Wiley & Sons, Inc.
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Yamamoto S, Nakanishi K, Matsuno R, Kamikubo T. Ion exchange chromatography of proteins-prediction of elution curves and operating conditions. I. Theoretical considerations. Biotechnol Bioeng 2012; 25:1465-83. [PMID: 18551435 DOI: 10.1002/bit.260250605] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A mathematical model is proposed for the elution of proteins on ion exchange columns by a linear gradient increase and stepwise increase of ionic strength in order to predict relationships between the elution characteristics (the peak position, the peak width, etc.) and the operating conditions (the flow rate, the slope of gradient, etc). This model is in principle based on the continuous-flow plate theory, in which the protein concentration and ionic strength dependent distibution coefficient between proteins and ion exchangers and zone sperading effects are taken into consideration. The advantage of this model is its simplicity since it requires only two parameters: The distribution coefficient and the number of plates. Since the distribution coefficient of proteins depends on both the protein concentration and ionic strength of the elution buffer, the number of plates should vary with time. However, it is extremely difficult to take into consideration the time-dependent number of plates. Therefore, we assume that the number of plates is constant and related to that number derived from a mass balance model which includes longitudinal dispersion and gel phase diffusion. On the basis of these assumptions, a method for determining the number of plates by the moment method is presented. Although the dependencies of the peak position and peak width on the slope of linear gradient are predictable by numerical calculations of the present model, simpler methods for prediction of these dependencies are desirable. A graphical method is proposed for prediction of the peak position. For prediction of the peak width, an asymptotic solution is derived from a quasi-steady-state model.
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Lee MS, Repeta DJ, Nakanishi K, Zagorski MG. Biosynthetic origins and assignments of carbon 13 NMR peaks of brevetoxin B. J Am Chem Soc 2012; 108:7855-6. [PMID: 22283310 DOI: 10.1021/ja00284a072] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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68
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Nagata S, Nishimura S, Takenaka A, Kubo C, Yoshizawa H, Yuki M, Kitamura M, Takahashi H, Uehara H, Nakanishi K, Ishikawa O, Tomita Y. Pancreatic juice cytology of serous cystic neoplasms communicating with the pancreatic duct: diagnostic pitfalls in this rare entity. Cytopathology 2012; 24:199-201. [DOI: 10.1111/j.1365-2303.2012.01001.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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69
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Goto M, Matsuzaki M, Fuchinoue A, Urabe N, Kawagoe N, Takemoto I, Tanaka H, Watanabe T, Miyazaki T, Takeuchi M, Honda Y, Nakanishi K, Urita Y, Shimada N, Nakajima H, Sugimoto M, Goto T. Chronic atherosclerotic mesenteric ischemia that started to develop symptoms just after anaphylaxis. Case Rep Gastroenterol 2012; 6:300-8. [PMID: 22754490 PMCID: PMC3376342 DOI: 10.1159/000339204] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
An 83-year-old woman was referred to our emergency department with acute urticaria and sudden shortness of breath approximately 30 min after taking rectal diclofenac potassium for lumbago. After treatment with adrenaline and corticosteroids, the patient became hemodynamically stable and left the hospital on the next day. She attended our hospital 1 week after the onset of anaphylaxis because of repeated postprandial epigastric pain. No abnormal lesions were found in endoscopy. Radiographic selective catheter angiography revealed chronic mesenteric ischemia caused by atherosclerosis and abundant collateral arteries between the celiac trunk, the superior mesenteric artery and the inferior mesenteric artery. Patients with chronic mesenteric ischemia usually present with a clinical syndrome characterized by painful abdominal cramps and colic occurring typically during the postprandial phase. Fear of eating resulted in malnutrition. She was prescribed proton pump inhibitor, digestants, anticholinergic agents, serine protease inhibitors, prokinetics, antiplatelet agents and transdermal nitroglycerin intermittently, but these had no beneficial effects. It was most probable that this patient with chronic atherosclerotic mesenteric ischemia was suffering from functional abdominal pain syndrome induced by anaphylaxis. Since psychiatric disorders were associated with alterations in the processing of visceral sensation, we facilitated the patient's understanding of functional abdominal pain syndrome with the psychologist. Postprandial abdominal pain gradually faded after administration of these drugs and the patient left the hospital. Developing a satisfactory patient-physician relationship was considered more effective for the management of persistent abdominal pain caused by complicated mechanisms.
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Nakajima H, Watanabe T, Miyazaki T, Takeuchi M, Honda Y, Shimada N, Nakanishi K, Urita Y, Sugimoto M. Acute liver dysfunction in the course of norovirus gastroenteritis. Case Rep Gastroenterol 2012; 6:69-73. [PMID: 22423242 PMCID: PMC3304080 DOI: 10.1159/000336202] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
A 48-year-old female with abdominal pain and malaise who showed delayed symptom of acute gastroenteritis came to see us. Her illness was diagnosed as norovirus infection, but liver dysfunction accompanied this gastroenteritis. We investigated the pathogenesis of this hepatitis for all causes including drugs, but we could not detect norovirus infection. The liver damage improved shortly in course of the gastroenteritis. She recovered completely within 2 weeks without any damage left. Norovirus-induced liver dysfunction is not known, and there is no report in the literature. We report, for the first time, the case of liver dysfunction with norovirus gastroenteritis.
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Shinozaki K, Oda S, Sadahiro T, Nakamura M, Watanabe E, Abe R, Nakada T, Morita Y, Nakanishi K, Kitamura N, Hirasawa H. Correlation between IL-6 and S-100B blood levels and outcome of post-cardiac arrest syndrome and influence of therapeutic hypothermia on these mediator blood levels. Crit Care 2012. [PMCID: PMC3363695 DOI: 10.1186/cc10884] [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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Tobisawa Y, Maruyama T, Tanikawa T, Nakanishi K, Kurohane K, Imai Y. Establishment of recombinant hybrid-IgG/IgA immunoglobulin specific for Shiga toxin. Scand J Immunol 2011; 74:574-84. [PMID: 21883352 DOI: 10.1111/j.1365-3083.2011.02617.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Shiga toxin 1 produced by enterohaemorrhagic Escherichia coli is an AB(5) toxin that is involved in the life-threatening haemolytic-uraemic syndrome. The B subunits (Stx1B) are cell-binding subunits. We previously established mouse hybridoma cell line producing IgA and IgG monoclonal antibodies (mAbs) against Stx1B. Here, we cloned cDNAs encoding each of the heavy, light and joining (J) chains from the hybridoma cell lines by means of the 5' rapid amplification of cDNA ends (RACE) PCR method. Upon assignment of the variable regions of the heavy and light chains to known germline sequences, we found substantial somatic hypermutation in the complementarity-determining regions in both the IgA and IgG mAbs. We also established a hybrid-IgG/IgA heavy chain having variable regions of the IgG mAb by means of recombinant PCR methods. Upon transient expression of the hybrid-IgG/IgA heavy, IgG-associated light and J chains in COS-1 cells, the translated dimeric hybrid-IgG/IgA bound to immobilized Stx1B, as revealed on ELISA. The production of dimeric hybrid-IgG/IgA was revealed on immunoblot analysis. The dimeric hybrid-IgG/IgA inhibited the binding of digoxigenin-conjugated Stx1B to natural ligands (CD77) displayed on Burkitt's lymphoma cell line Ramos. These results indicate that the replacement of variable regions resulted in the production of more useful recombinant dimeric IgA against Stx1B.
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Motomura K, Nakahara S, Ishitobi M, Komoike Y, Koyama H, Inaji H, Horinouchi T, Nakanishi K. P3-07-46: Accuracy of SPIO-Enhanced MR Imaging Alone for the Diagnosis of Sentinel Node Metastases in Patients with Breast Cancer. Cancer Res 2011. [DOI: 10.1158/0008-5472.sabcs11-p3-07-46] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
Superparamagnetic iron oxide (SPIO)-enhanced MR imaging has been reported to be promising for the detection of metastases in sentinel nodes localized by CT lymphography in patients with breast cancer (Motomura, Ann Surg Oncol 2011). The current SPIO technique involves imaging before and after contrast administration. This study evaluated the accuracy of SPIO-enhanced MR imaging alone without unenhanced imaging.
Methods: This study included 120 patients with breast cancer demonstrating clinically negative nodes. Sentinel nodes were identified by CT lymphography, and MR imaging of the axilla before and 18–24 hr after interstitial administration of SPIO was performed. A node was considered non-metastatic if it showed a homogenous low signal intensity and metastatic if there was an absence of low signal intensity either in the entire node or in a focal area on SPIO-enhanced MR imaging. The diagnostic accuracy of the SPIO-enhanced imaging alone was compared with that of combined unenhanced and SPIO-enhanced imaging.
Results: The mean number of sentinel nodes identified by CT lymphography was 1.2 (range 1–3). Pathologic evaluation demonstrated that 28 (23.3%) of 120 patients showed metastasis to at least one node. One false negative result was added when the evaluation was based solely on SPIO-enhanced MR imaging. Consequently, the sensitivity decreased from 84.0% to 80.0% and the accuracy decreased from 89.2% to 88.3%, respectively, in the SPIO-enhanced MR imaging alone. However, the differences in sensitivity and accuracy between SPIO-enhanced MR imaging alone and the combined unenhanced and SPIO-enhanced imaging were not significant (McNemar's test; p=1.0). The specificity of enhanced imaging alone and that of combined unenhanced and SPIO-enhanced imaging were both 90.5%.
Conclusions: A single MR imaging examination performed after SPIO administration can be used for accurate diagnosis of sentinel node metastases, and thus reduce the time and cost of imaging.
Citation Information: Cancer Res 2011;71(24 Suppl):Abstract nr P3-07-46.
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Nakashima M, Kinoshita M, Nakashima H, Habu Y, Miyazaki H, Shono S, Hiroi S, Shinomiya N, Nakanishi K, Seki S. Pivotal Advance: Characterization of mouse liver phagocytic B cells in innate immunity. J Leukoc Biol 2011; 91:537-46. [DOI: 10.1189/jlb.0411214] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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75
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Kanamori K, Hayase G, Nakanishi K, Hanada T. Pore Structure and Mechanical Properties of Poly(methylsilsesquioxane) Aerogels. ACTA ACUST UNITED AC 2011. [DOI: 10.1088/1757-899x/18/3/032001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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