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Kashiwagi N, Dote K, Kawano K, Tomita Y, Murakami T, Nakanishi K, Araki Y, Mori K, Tomiyama N. MRI findings of mucoepidermoid carcinoma of the parotid gland: correlation with pathological features. Br J Radiol 2011; 85:709-13. [PMID: 21896663 DOI: 10.1259/bjr/55639432] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
OBJECTIVE The aim of this study was to correlate the MRI appearance and pathological findings in each grade of the mucoepidermoid carcinoma (MEC) of the parotid gland. METHODS We reviewed surgically proven MECs of parotid glands in 20 patients. Pathologically, 5 tumours were high-grade, 3 were intermediate and 12 were low-grade. MR images were evaluated with emphasis on signal intensities on T(2) weighted images, margin characteristics and lymph node metastasis, correlating these with pathological features. RESULTS Among the high-grade MECs, four out of five tumours showed inhomogeneous low to intermediate signal intensity on T(2) weighted images, reflecting high cellularity. All tumours had an ill-defined margin, reflecting invasive tumour growth. Among the intermediate-grade MECs, all three tumours showed intermediate signal intensity on T(2) weighted images and two tumours had an ill-defined margin. Among the low-grade MECs, 11 of the 12 tumours had a hyperintense area on T(2) weighted images because of the existence of abundant mucin secreting cells. Seven tumours had an ill-defined margin, reflecting peritumoural inflammatory changes rather than invasive tumour growth. Lymph node metastasis was seen in three high-grade MECs. CONCLUSION MECs of the parotid gland show variable MRI findings reflecting their histological nature, which seems to have certain tendencies depending on the tumour grade.
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Oda T, Shimazaki H, Takahashi H, Endo H, Sekitsuka K, Maekawa K, Katsurada Y, Kono T, Ueno H, Takano M, Nakanishi K, Tamai S. Immunocytochemistry of mesenteric malignant mixed müllerian tumour in peritoneal effusion cytology: case report. Cytopathology 2011; 23:334-7. [PMID: 21838721 DOI: 10.1111/j.1365-2303.2011.00900.x] [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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Tamii A, Poltoratska I, von Neumann-Cosel P, Fujita Y, Adachi T, Bertulani CA, Carter J, Dozono M, Fujita H, Fujita K, Hatanaka K, Ishikawa D, Itoh M, Kawabata T, Kalmykov Y, Krumbholz AM, Litvinova E, Matsubara H, Nakanishi K, Neveling R, Okamura H, Ong HJ, Ozel-Tashenov B, Ponomarev VY, Richter A, Rubio B, Sakaguchi H, Sakemi Y, Sasamoto Y, Shimbara Y, Shimizu Y, Smit FD, Suzuki T, Tameshige Y, Wambach J, Yamada R, Yosoi M, Zenihiro J. Complete electric dipole response and the neutron skin in 208Pb. PHYSICAL REVIEW LETTERS 2011; 107:062502. [PMID: 21902316 DOI: 10.1103/physrevlett.107.062502] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Indexed: 05/31/2023]
Abstract
A benchmark experiment on (208)Pb shows that polarized proton inelastic scattering at very forward angles including 0° is a powerful tool for high-resolution studies of electric dipole (E1) and spin magnetic dipole (M1) modes in nuclei over a broad excitation energy range to test up-to-date nuclear models. The extracted E1 polarizability leads to a neutron skin thickness r(skin) = 0.156(-0.021)(+0.025) fm in (208)Pb derived within a mean-field model [Phys. Rev. C 81, 051303 (2010)], thereby constraining the symmetry energy and its density dependence relevant to the description of neutron stars.
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Sedriep S, Zhong K, Nakanishi K, Sweed H, Chui DH, Yang H, Xia X, Catanzaro R, Zhou L, Marotta F. Advantage of carbonate-versus citrate-based alkalinization on bone metabolism in moderately exercising aged male rats fed an acidogenic diet. J BIOL REG HOMEOS AG 2011; 25:341-9. [PMID: 22023758 DOI: pmid/22023758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This study aims to determine the effects of different alkaline supplementations on high protein diet-induced abnormalities affecting bone metabolism in rats which were also undergoing physical exercise of moderate intensity. Sixty elderly Sprague-Dawley rats were randomly divided into four groups of 10 rats each and treated for 16 weeks as follows: baseline control group fed normal food (C); acidic high-protein diet supplemented group (chronic acidosis, CA group), bicarbonate-based alkaline formula (Basenpulver, Named, Italy) supplemented chronic acidosis (BB-CA) and citrate-based alkaline supplement (CB-CA). Throughout the supplementation period, rats were put on a treadmill training mimicking a moderate level of exercise. In the CA group, 24-hour urinary calcium (Ca) and phosphorus (P) excretion were increased over 30 percent (p<0.05 vs normal diet controls). However serum Ca was not significantly changed. Femural and tibial BMD and BMC was significantly decreased in the CA group (p<0.05) but both alkaline supplementations prevented such phenomenon (p<0.05 vs CA), without significant difference between the two formulations although the BB-CA group showed significantly more preserved trabecular bone volume (p<0.05 vs CB-CA group). An increased level of over 50 percent of urinary Dpd observed in the CA group (p<0.001) was reverted to normal by both supplementations (p<0.001 vs CA group). The same applied to urinary net acid excretion (p<001) with BB-supplementation performing better than CB-supplementation (p<0.05). Moreover, while the latter did not modify Nterminal telopeptide value, BB-supplementation significantly normalized this parameter (p<0.05 vs CA group) which exercise and acidic protein diet had modified (p<0.01 vs control diet). Overall, the present study shows that a bicarbonate-based alkaline formula, when administered to a dose amenable to clinical use, may significantly protect bone structure in exercising aged animals to a greater extent than a quali/quantitavely similar citrate-based formula.
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Choi HJ, Lim JS, Park EJ, Jung HJ, Lee YJ, Kwon TH, Cesar KR, Araujo M, de Braganca AC, Magaldi AJ, Freisinger W, Ditting T, Heinlein S, Schatz J, Veelken R, Burki R, Mohebbi N, Wang X, Serra A, Wagner C, Ditting T, Freisinger W, Rodionova K, Heinlein S, Schmieder R, Veelken R, Yano Y, Kudo LH, Magaldi AJ, Choi HJ, Yoon YJ, Lim JS, Hwang GS, Kwon TH, Jo CH, Kim S, Park JS, Lee CH, Kang CM, Kim GH, Kokeny G, Szoleczky P, Fang L, Rosivall L, Mozes MM, Freisinger W, Schatz J, Lampert A, Ditting T, Veelken R, Yano Y, Magaldi AJ, LEE WC, Wang YC, Chen JB, Santos C, Gomes AM, Ventura A, Almeida C, Seabra J, Daher E, Leite de Figueiredo P, Montenegro R, Montenegro R, Martins M, Bezerra da Silva G, Liborio A, Sromicki J, Matter S, Sitzmann K, Hess B, Lee J, Kim S, Lee JW, Oh YK, Na KY, Joo KW, Earm JH, Han JS, Ninchoji T, Kaito H, Nozu K, Hashimura Y, Nakanishi K, Yoshikawa N, Iijima K, Matsuo M, Gorini A, Addesse R, Comegna C, Galderisi C, Cecilia A, Tomaselli M, Di Lullo L, Polito P. Acid-base/Na, K, Cl. Experimental and clinical. Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Stekrova J, Reiterova J, Elisakova V, Merta M, Kohoutova M, Tesar V, Suvakov S, Damjanovic T, Dimkovic N, Pljesa S, Savic-Radojevic A, Pljesa-Ercegovac M, Matic M, Djukic T, Coric V, Simic T, Gigante M, d'Altilia M, Montemurno E, Schirinzi A, Bruno F, Netti GS, Ranieri E, Stallone G, Infante B, Grandaliano G, Gesualdo L, Maritati F, Alberici F, Bonatti F, Oliva E, Sinico RA, Moroni G, Leoni A, Gregorini G, Jeannin G, Possenti S, Tumiati B, Grasselli C, Brugnano R, Salvarani C, Fraticelli P, Pavone L, Pesci A, Guida G, Neri TM, Buzio C, Malerba G, Martorana D, Vaglio A, Santucci L, Candiano G, Cremasco D, Tosetto E, Del Prete D, Bruschi M, Ghiggeri GM, Anglani F, Rainone F, Soldati L, Terranegra A, Arcidiacono T, Aloia A, Dogliotti E, Vezzoli G, Maruniak-Chudek I, Zenker M, Chudek J, Reiterova J, Obeidova L, Stekrova J, Lnenicka P, Tesar V, Iwanitskiy LV, Krasnova TN, Samokhodskaya LM, Bernasconi AR, Albarracin L, Liste AA, Politei JM, Heguilen RM, Kaito H, Nozu K, Nakanishi K, Hashimura Y, Shima Y, Ninchoji T, Yoshikawa N, Iijima K, Matsuo M, Hur E, Gungor O, Bozkurt D, Bozgul SMK, Caliskan H, Dusunur F, Basci A, Akcicek F, Duman S, Li Y, Wang C, Nan L, Hruskova Z, Brabcova I, Lanska V, Honsova E, Hanzal V, Borovicka V, Reiterova J, Rysava R, Zachoval R, Viklicky O, Tesar V, Miltenberger-Miltenyi G, Almeida E, Calado J, Carvalho F, Pereira S, Teixeira C, Jorge S, Viana H, Gomes da Costa A, Yang CS, Tseng MH, Yang SS, Lin SH. Genetic diseases and molecular genetics. Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Sato Y, Nakanishi K, Hattori T, Ichinohashi Y, Blomgren K, Oohira A, Hayakawa M. [Stem cell therapies CNS diseases--can they save babies with brain injuries?]. NO TO HATTATSU = BRAIN AND DEVELOPMENT 2011; 43:201-205. [PMID: 21638903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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Motomura K, Nakahara S, Ishitobi M, Komoike Y, Koyama H, Inaji H, Horinouchi T, Nakanishi K. P237 Patterns of nodal enhancement on MR imaging with SPIO in patients with breast cancer demonstrating positive sentinel nodes. Breast 2011. [DOI: 10.1016/s0960-9776(11)70183-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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84
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Suzuki O, Sunagawa T, Yokota K, Nakashima Y, Shinomiya R, Nakanishi K, Ochi M. Use of quantitative intra-operative electrodiagnosis during partial ulnar nerve transfer to restore elbow flexion. ACTA ACUST UNITED AC 2011; 93:364-9. [DOI: 10.1302/0301-620x.93b3.24634] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The transfer of part of the ulnar nerve to the musculocutaneous nerve, first described by Oberlin, can restore flexion of the elbow following brachial plexus injury. In this study we evaluated the additional benefits and effectiveness of quantitative electrodiagnosis to select a donor fascicle. Eight patients who had undergone transfer of a simple fascicle of the ulnar nerve to the motor branch of the musculocutaneous nerve were evaluated. In two early patients electrodiagnosis had not been used. In the remaining six patients, however, all fascicles of the ulnar nerve were separated and electrodiagnosis was performed after stimulation with a commercially available electromyographic system. In these procedures, recording electrodes were placed in flexor carpi ulnaris and the first dorsal interosseous. A single fascicle in the flexor carpi ulnaris in which a high amplitude had been recorded was selected as a donor and transferred to the musculocutaneous nerve. In the two patients who had not undergone electrodiagnosis, the recovery of biceps proved insufficient for normal use. Conversely, in the six patients in whom quantitative electrodiagnosis was used, elbow flexion recovered to an M4 level. Quantitative intra-operative electrodiagnosis is an effective method of selecting a favourable donor fascicle during the Oberlin procedure. Moreover, fascicles showing a high-amplitude in reading flexor carpi ulnaris are donor nerves that can restore normal elbow flexion without intrinsic loss.
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Yudasaka M, Hironaga K, Yamochi H, Nakanishi K, Saito G. Thin Film Formations of Charge Transfer Complexes with Metallic Properties by Vacuum Deposition Method. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-173-137] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTThin films of a charge transfer complex, hepta-(tetrathiafulvalene) pentaiodide ( TTF7I5, TTF:I0-71 ), were prepared by double source evaporation of TTF and iodine. Crystalline films of TTF:I0-7i were obtained when substrate temperatures were kept between 0°C and 25°C. Orientation alignment of the crystalline films were affected by supply rate of iodine. By controlling the substrate temprature and the supply rate of iodine, highly oriented crystalline films were grown on mica substrates. It showed strong dichroism and anisotropic electrical propert ies.
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Shinozaki K, Oda S, Sadahiro T, Nakamura M, Hirayama Y, Watanabe E, Tateishi Y, Nakanishi K, Kitamura N, Hirasawa H. Ammonia and lactate blood levels on hospital arrival predict neurological outcome in patients with out-of-hospital cardiac arrest. Crit Care 2011. [PMCID: PMC3066979 DOI: 10.1186/cc9725] [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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87
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Nakanishi K, Sakurai S, Kawabata T, Shimizu S. Cerebral thromboembolism in a patient awaiting surgery for left ventricular diverticulum. Interact Cardiovasc Thorac Surg 2011; 12:319-20. [DOI: 10.1510/icvts.2010.242206] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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88
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Shima Y, Nakanishi K, Kamei K, Togawa H, Nozu K, Tanaka R, Sasaki S, Iijima K, Yoshikawa N. Disappearance of glomerular IgA deposits in childhood IgA nephropathy showing diffuse mesangial proliferation after 2 years of combination/prednisolone therapy. Nephrol Dial Transplant 2011; 26:163-169. [DOI: 10.1093/ndt/gfq387] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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89
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Hadoush H, Inoue K, Nakanishi K, Yoshida A, Sunagawa T, Ochi M. P25-25 Somatosensory cortical plasticity to tactile stimuli and electro-cutaneous stimuli in carpal tunnel syndrome. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)61047-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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90
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Murata M, Miyagawa-Kohshima K, Nakanishi K, Naya Y. Characterization of compounds that induce symbiosis between sea anemone and anemone fish. Science 2010; 234:585-7. [PMID: 17835564 DOI: 10.1126/science.234.4776.585] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The species-specific partnership between the sea anemone and anemone fish in many parts of the Indo-Pacific region is a well-known phenomenon. Chemicals secreted by the sea anemone to elicit symbiotic behavior of the fish have been studied for two host-guest pairs, Radianthus kuekenthali (sea anemone)-Amphiprion perideraion (anemone fish) and Stoichactis kenti-A. ocellaris. A new pyridinium compound, amphikuemin, which induces characteristic attracted swimming (toward the chemical stimulus) in A. perideraion, has been isolated from R. kuekenthali and characterized. Several other chemicals that elicit characteristic symbiotic movements have also been identified.
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Evans LS, Almeida MS, Lynn DG, Nakanishi K. Chemical characterization of a hormone that promotes cell arrest in g2 in complex tissues. Science 2010; 203:1122-3. [PMID: 17776047 DOI: 10.1126/science.203.4385.1122] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
A G(2|)factor in the cotyledons of Pisum sativum, which arrests the growth of cells in both roots and shoots in the G(2) stage of the cell cycle, has been isolated and identified as trigonelline (N-methylnicotinic acid). To our knowledge, trigonelline is the first hormone that effects cell arrest in complex tissues of plants and animals to be chemically identified.
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Naya Y, Ohnishi M, Ikeda M, Miki W, Nakanishi K. What is molt-inhibiting hormone? The role of an ecdysteroidogenesis inhibitor in the crustacean molting cycle. Proc Natl Acad Sci U S A 2010; 86:6826-9. [PMID: 16594067 PMCID: PMC297939 DOI: 10.1073/pnas.86.17.6826] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The in vivo molt-inhibitory effects of the ecdysone biosynthesis inhibitors 3-hydroxy-L-kynurenine and xanthurenic acid were investigated. These ecdysone biosynthesis inhibitors, isolated from the eyestalks of blue crabs (Callinectes sapidus), were injected into eyestalk-ablated crayfish (Procambarus clarkii). The active factor was found to be species-nonspecific within crabs and crayfish. The seasonal profiles of the xanthurenic acid and ecdysone titers exhibited a staggered relationship. Moreover, the activity of a 3-hydroxy-L-kynurenine aminotransferase varied during the molting cycle. The data suggested that 3-hydroxy-L-kynurenine, which is secreted from the X-organ-sinus gland complex of crustaceans, is released into the hemolymph, and after accumulating at the surface of the Y-organ, is converted into the active form, xanthurenic acid. Xanthurenic acid was found to profoundly repress ecdysteroidogenesis in vitro.
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Ishikura K, Yoshikawa N, Hattori S, Sasaki S, Iijima K, Nakanishi K, Matsuyama T, Yata N, Ando T, Honda M. Treatment with microemulsified cyclosporine in children with frequently relapsing nephrotic syndrome. Nephrol Dial Transplant 2010; 25:3956-62. [DOI: 10.1093/ndt/gfq318] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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94
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Kashiwagi N, Nakanishi K, Kozuka T, Sato Y, Tanaka K, Tsukaguchi I, Uemura H, Fujii T, Yoshino K, Tomiyama N. Vascular supply with angio-CT for superselective intra-arterial chemotherapy in advanced maxillary sinus cancer. Br J Radiol 2010; 83:171-8. [PMID: 20139264 DOI: 10.1259/bjr/16954991] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Recently popularised, the combined angiography and CT (angio-CT) system is useful for correctly identifying the feeding arteries and their perfusion in various organs. We applied this system for advanced maxillary cancer to expose its feeding arteries and their supplying territories. In addition to the maxillary artery, extramaxillary feeding arteries were usually observed, including the ophthalmic, accessory meningeal, facial, transverse facial and ascending palatine arteries. These extramaxillary feeding arteries exhibited uniform tendencies, depending on the site of extramaxillary tumour extension.
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Uenoyama M, Ogata S, Nakanishi K, Kanazawa F, Hiroi S, Tominaga S, Seo A, Matsui T, Kawai T, Suzuki S. Protein kinase C mRNA and protein expressions in hypobaric hypoxia-induced cardiac hypertrophy in rats. Acta Physiol (Oxf) 2010; 198:431-40. [PMID: 19995357 DOI: 10.1111/j.1748-1716.2009.02064.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
AIM Protein kinase C (PKC), cloned as a serine/threonine kinase, plays key roles in diverse intracellular signalling processes and in cardiovascular remodelling during pressure overload or volume overload. We looked for correlations between changes in PKC isoforms (levels and/or subcellular distributions) and cardiac remodelling during experimental hypobaric hypoxic environment (HHE)-induced pulmonary hypertension. METHODS To study the PKC system in the heart during HHE, 148 male Wistar rats were housed for up to 21 days in a chamber at the equivalent of 5500 m altitude level (10% O(2)). RESULTS At 14 or more days of exposure to HHE, pulmonary arterial pressure (PAP) was significantly increased. In the right ventricle (RV): (1) the expression of PKC-alpha protein in the cytosolic and membrane fractions was increased at 3-14 days and at 5-7 days of exposure respectively; (ii) the cytosolic expression of PKC-delta protein was increased at 1-5, 14 and 21 days of exposure; (3) the membrane expressions of the proteins were decreased at 14-21 (PKC-betaII), 14-21 (PKC-gamma), and 0.5-5 and 21 (PKC-epsilon) days of exposure; (4) the expression of the active form of PKC-alpha protein on the plasma membrane was increased at 3 days of exposure (based on semiquantitative analysis of the immunohistochemistry). In the left ventricle, the expressions of the PKC mRNAs, and of their cytosolic and membrane proteins, were almost unchanged. The above changes in PKC-alpha, which were strongly evident in the RV, occurred alongside the increase in PAP. CONCLUSION PKC-alpha may help to modulate the right ventricular hypertrophy caused by pulmonary hypertension in HHE.
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Nakanishi K, Gutzeit A. Evaluation of Malignant Bone Disease Using DW-MRI. MEDICAL RADIOLOGY 2010. [DOI: 10.1007/978-3-540-78576-7_13] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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97
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Motomura K, Ishitobi M, Komoike Y, Koyama H, Inaji H, Horinouchi T, Nakanishi K. SPIO Enhanced MR Imaging for the Detection of Metastases in Sentinel Nodes Localized by CT Lymphography in Patients with Breast Cancer. Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-09-1010] [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: Ultrasonography, magnetic resonance (MR) imaging, and computed tomography (CT) may detect nodal metastases in patients with breast cancer, but there is not sufficient accuracy with the conventional methods. Recently, superparamagnetic nanoparticles-enhanced MR imaging has been reported to be a promising improvement for diagnostic imaging of lymph node metastases from various tumors. Moreover, sentinel nodes have been reported to be well-identified using CT lymphography in patients with breast cancer. This study evaluated MR imaging with superparamagnetic iron oxide (SPIO) enhancement for the detection of metastases in sentinel nodes localized by CT lymphography in patients with breast cancer, with histopathologic findings as the reference standard.Methods: This study included 102 patients with breast cancer with clinically negative nodes. Each contrast agent was injected intradermally into the skin overlying the breast tumor and in the subareolar region. Sentinel nodes were identified by CT lymphography, and SPIO-enhanced MR imaging of the axilla was performed to detect metastases in the sentinel nodes. A node was considered non-metastatic if it showed a homogenous low signal intensity and metastatic if the entire node or a focal area did not show a low signal intensity on MR imaging. Sentinel node biopsy was performed using a combination of dye and radiocolloid. Imaging results were correlated with histopathologic findings.Results: The mean number of sentinel nodes identified by CT lymphography was 1.1 (range 1–3). Twenty-one of 25 patients with positive sentinel nodes definitively diagnosed by pathology demonstrated metastases on SPIO-enhanced MR imaging. Seventy of 77 patients with negative sentinel nodes definitively diagnosed by pathology were non-metastatic on imaging studies. The sensitivity, specificity, and overall accuracy of MR imaging for the diagnosis of sentinel node metastases were 84%, 91%, and 89%, respectively. In four of 10 patients with micrometastases, the metastases were not detected, but all 15 patients with macrometastases were successfully demonstrated. There were no adverse events associated with either CT or MR imaging.Conclusions: SPIO-enhanced MR imaging is a useful method of detecting metastases in sentinel nodes localized by CT lymphography in patients with breast cancer. Patients with clinically negative nodes may be spared sentinel node biopsy when the sentinel node is diagnosed as disease-free using SPIO-enhanced MR imaging.
Citation Information: Cancer Res 2009;69(24 Suppl):Abstract nr 1010.
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Sato M, Ozaki M, Nakanishi K, Watanabe T, Mino K, Yokoo H, Umezawa K, Ohmiya Y, Kamiyama T, Todo S. 6644 A novel NF-kB inhibitor DHMEQ suppressed peritoneal dissemination of pancreatic cancer in mouse xenograft model. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)71365-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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99
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Mino K, Nakanishi K, Haga S, Sato M, Kina M, Yokoo H, Kamiyama T, Umezawa K, Ozaki M, Todo S. 6635 A novel NF-kB inhibitor DHMEQ could suppress peritoneal dissemination of gastric cancer by anti-tumor/-adhesive effects in mice. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)71356-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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100
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Tsuchihara T, Nemoto K, Arino H, Okabayashi T, Amako M, Nakanishi K. 396 NONVIRAL RETROGRADE GENE TRANSFER OF HUMAN HEPATOCYTE GROWTH FACTOR IMPROVES NEUROPATHIC PAIN‐RELATED PHENOMENA IN RATS. Eur J Pain 2009. [DOI: 10.1016/s1090-3801(09)60399-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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