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Inoue S, Kaneko T, Morita S, Natsumeda Y, Mizushima S. P1-178 Heterogeneity of the 23-valent pneumococcal polysaccharide vaccine efficacy due to various underlying conditions of chronic pulmonary disease in elderly patients. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976d.71] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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102
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Kaneko T, Baba N, Matsuo M. Structure-activity relationship of antioxidants for inhibitors of linoleic acid hydroperoxide-induced toxicity in cultured human umbilical vein endothelial cells. Cytotechnology 2011; 35:43-55. [PMID: 19003280 DOI: 10.1023/a:1008139412588] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Structure-activity relationship of antioxidants for the protective effects on linoleic acid hydroperoxide (LOOH)-induced toxicity were examined in cultured human umbilical vein endothelial cells. alpha-Tocopherol, 2,2,5,7,8-pentamethylchroman-6-ol, butylated hydroxytoluene, probucol, and fatty acid esters of ascorbic acid provided efficient protection against the cytotoxicity of LOOH in pretreatment, but phenols without alkyl groups at the ortho positions and hydrophilic antioxidants such as Trolox and ascorbic acid provided no protection. Probably, the effectiveness of the protection against cytotoxicity by these antioxidants dependsprimarily on their rate of incorporation into cells due to their lipophilicity, secondly on their antioxidant activity, and thirdly on their orientation in biomembranes. On the other hand, flavones, such as baicalein and luteolin bearing 3 to 5 hydroxyl groups, and flavonols showed a protective effect against LOOH cytotoxicity when added together with LOOH,but not by pretreatment. Among catechins, (+)-catechin and (-)-epigallocatechin gallate monoglucoside and diglucoside were effective in suppressing LOOH-induced cytotoxicity, but their effects were not so strong. The structure-activity relationship of flavonoids revealed the presence of either theortho-dihydroxy structure in the B ring of flavonoids or the 3-hydroxyl and 4-oxo groups in the C ring to be important forthe protective activities. Furthermore, coumarins such as esculetin containing the ortho catechol structure had protective effects in both pretreatment and concurrent treatment. These results suggest that ortho catechol moiety of flavonoids, catechins, and coumarins is an important structure in the protection against LOOH-induced cytotoxicity,and that the alkyl groups of monophenols are critical for protection.
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103
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Ueno M, Ohkawa S, Sugimori K, Kobayashi S, Kaneko T, Taguri M, Morita S. Randomized phase II study of gemcitabine monotherapy versus gemcitabine with an EPA-enriched oral supplement in advanced pancreatic cancer (YCOG001). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e14552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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104
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Iwanami T, Kikuchi A, Kaneko T, Hirai K, Yano N, Nakaguchi T, Tsumura N, Yoshida Y, Miyake Y. Erratum: Relationship Between Ambient Illumination and Psychological Effects for Television Viewing. J Imaging Sci Technol 2011. [DOI: 10.2352/j.imagingsci.technol.2011.55.3.030102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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105
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Maki T, Kura H, Ishida H, Kaneko T, Hatakeyama R, Takahashi M, Ogawa T. Effect of hydrogen plasma treatment on reduction process of iron oxide nanoparticles. ACTA ACUST UNITED AC 2011. [DOI: 10.1088/1742-6596/266/1/012120] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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106
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Kikuchi A, Kaneko T, Yano N, Yoshida Y, Iwanami T, Hirai K, Nakaguchi T, Tsumura N, Miyake Y. Relationship Between Ambient Illumination and Psychological Effects for Television Viewing. J Imaging Sci Technol 2011. [DOI: 10.2352/j.imagingsci.technol.2011.55.1.010502] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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107
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Kawamura J, Kaneko T, Kaneko M, Sunakawa M, Kaneko R, Chokechanachaisakul U, Okiji T, Suda H. Neuron-immune interactions in the sensitized thalamus induced by mustard oil application to rat molar pulp. J Dent Res 2010; 89:1309-14. [PMID: 20739703 DOI: 10.1177/0022034510377202] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
We have reported that mustard oil application to the rat dental pulp induces neuronal activation in the thalamus. To address the mechanisms involved in the thalamic changes, we performed neuronal responsiveness recording, immunohistochemistry, and molecular biological analysis. After mustard oil application, neuronal responsiveness was increased in the mediodorsal nucleus. When MK801 (an N-methyl-D-aspartate receptor antagonist) was applied to the mediodorsal nucleus, the enhanced responsiveness was decreased. N-methyl-D-aspartate receptor 2D, glial fibrillary acidic protein, and antigen-presenting cell-related gene mRNAs in the contralateral thalamus were up-regulated at 10 minutes after mustard oil application, but were down-regulated within 10 minutes after the antagonist application. OX6-expressing microglia and glial fibrillary acidic protein-expressing astrocytes did not increase until 60 minutes after mustard oil application. These results suggested that the thalamic neurons play some roles in regulating the glial cell activation in the mediodorsal nucleus via N-methyl-D-aspartate receptor 2D during pulp inflammation-induced central sensitization.
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108
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Hirabayashi Y, Yoon B, Igarashi K, Kodama Y, Sekita K, Kaneko T, Kanno J, Inoue T. Strain differences of the effect of benzene exposure: Microarray study of the bone marrow in C57BL/6 and C3H/He mice. Toxicol Lett 2010. [DOI: 10.1016/j.toxlet.2010.03.597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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109
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Kaneko T, Takahashi M, Suzuki H. Acetoin Fermentation by Citrate-Positive Lactococcus lactis subsp. lactis 3022 Grown Aerobically in the Presence of Hemin or Cu. Appl Environ Microbiol 2010; 56:2644-9. [PMID: 16348274 PMCID: PMC184819 DOI: 10.1128/aem.56.9.2644-2649.1990] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
CitrLactococcus lactis subsp. lactis 3022 produced more biomass and converted most of the glucose substrate to diacetyl and acetoin when grown aerobically with hemin and Cu. The activity of diacetyl synthase was greatly stimulated by the addition of hemin or Cu, and the activity of NAD-dependent diacetyl reductase was very high. Hemin did not affect the activities of NADH oxidase and lactate dehydrogenase. These results indicated that the pyruvate formed via glycolysis would be rapidly converted to diacetyl and that the diacetyl would then be converted to acetoin by the NAD-dependent diacetyl reductase to reoxidize NADH when the cells were grown aerobically with hemin or Cu. On the other hand, the Y(Glu) value for the hemincontaining culture was lower than for the culture without hemin, because acetate production was repressed when an excess of glucose was present. However, in the presence of lipoic acid, an essential cofactor of the dihydrolipoamide acetyltransferase part of the pyruvate dehydrogenase complex, hemin or Cu enhanced acetate production and then repressed diacetyl and acetoin production. The activity of diacetyl synthase was lowered by the addition of lipoic acid. These results indicate that hemin or Cu stimulates acetyl coenzyme A (acetyl-CoA) formation from pyruvate and that lipoic acid inhibits the condensation of acetyl-CoA with hydroxyethylthiamine PP(i). In addition, it appears that acetyl-CoA not used for diacetyl synthesis is converted to acetate.
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110
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Rokunohe D, Nakano H, Oshima H, Nakajima K, Aizu T, Kaneko T, Sawamura D. Giant cutaneous granular cell tumour with papillomatous appearance. Clin Exp Dermatol 2010; 35:e7-9. [PMID: 20500187 DOI: 10.1111/j.1365-2230.2008.03168.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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111
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Fukaya H, Aoki S, Hashimoto S, Kaneko T, Noaki J, Onogi T, Yamada N. Determination of the chiral condensate from (2+1)-flavor lattice QCD. PHYSICAL REVIEW LETTERS 2010; 104:122002. [PMID: 20366526 DOI: 10.1103/physrevlett.104.122002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2009] [Indexed: 05/29/2023]
Abstract
We perform a precise calculation of the chiral condensate in QCD using lattice QCD with 2+1 flavors of dynamical overlap quarks. Up and down quark masses cover a range between 3 and 100 MeV on a 16{3}x48 lattice at a lattice spacing approximately 0.11 fm. At the lightest sea quark mass, the finite volume system on the lattice is in the regime. By matching the low-lying eigenvalue spectrum of the Dirac operator with the prediction of chiral perturbation theory at the next-to-leading order, we determine the chiral condensate in (2+1)-flavor QCD with strange quark mass fixed at its physical value as Sigma;{MS[over ]}(2 GeV)=[242(04)(+19/-18) MeV]{3} where the errors are statistical and systematic, respectively.
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112
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Okugawa T, Kaneko T, Yoshimura A, Silverman N, Hara Y. NOD1 and NOD2 mediate sensing of periodontal pathogens. J Dent Res 2009; 89:186-91. [PMID: 20040739 DOI: 10.1177/0022034509354843] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In bacterial infection, Nucleotide-binding Oligomerization Domain (NOD) 1 and NOD2 induce innate immune responses by recognizing fragments of the bacterial component peptidoglycan (PGN). To determine the roles of these receptors in detection of periodontal pathogens, we stimulated human embryonic kidney cells expressing NOD1 or NOD2 with heat-killed Porphyromonas gingivalis, Aggregatibacter actinomycetemcomitans, and Fusobacterium nucleatum or their soluble PGNs (sPGNs). All bacteria and their sPGNs could stimulate activation of NF-kappaB. However, there were differences in NOD1- and NOD2-stimulatory activities among the species of bacteria. P. gingivalis showed weaker NOD1- and NOD2-stimulatory activities than did other bacteria. These differences in activities were confirmed by production of interleukin-8 from oral epithelial cells stimulated with sPGNs. These findings indicate that both NOD1 and NOD2 might be involved in the recognition of periodontal pathogens, and that the weak NOD-stimulatory property of P. gingivalis might be helpful for survival in the periodontal pocket.
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Tsuchida M, Ohara A, Manabe A, Kumagai M, Shimada H, Kikuchi A, Mori T, Saito M, Akiyama M, Fukushima T, Koike K, Shiobara M, Ogawa C, Kanazawa T, Noguchi Y, Oota S, Okimoto Y, Yabe H, Kajiwara M, Tomizawa D, Ko K, Sugita K, Kaneko T, Maeda M, Inukai T, Goto H, Takahashi H, Isoyama K, Hayashi Y, Hosoya R, Hanada R. Long-term results of Tokyo Children's Cancer Study Group trials for childhood acute lymphoblastic leukemia, 1984-1999. Leukemia 2009; 24:383-96. [PMID: 20033052 DOI: 10.1038/leu.2009.260] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
We report the long-term results of Tokyo Children's Cancer Study Group's studies L84-11, L89-12, L92-13, and L95-14 for 1846 children with acute lymphoblastic leukemia, which were conducted between 1984 and 1999. The value of event-free survival (EFS)+/-s.e. was 67.2+/-2.2% at 10 years in L84-11, which was not improved in the following two studies, and eventually improved to 75.0+/-1.8% at 10 years in L95-14 study. The lower EFS of the L89-12 reflected a high rate of induction failure because of infection and delayed remission in very high-risk patients. The L92-13 study was characterized by short maintenance therapy; it resulted in poor EFS, particularly in the standard-risk (SR) group and boys. Females did significantly better than males in EFS in the early three studies. The gender difference was not significant in overall survival, partly because >60% of the males survived after the testicular relapse. Randomized studies in the former three protocols revealed that intermediate- or high-dose methotrexate therapy significantly reduced the testicular relapse rate. In the L95-14 study, gender difference disappeared in EFS. Contrary to the results of larger-scale studies, the randomized control study in the L95-14 reconfirmed with updated data that dexamethasone 8 mg/m(2) had no advantage over prednisolone 60 mg/m(2) in the SR and intermediate-risk groups. Prophylactic cranial irradiation was assigned to 100, 80, 44, and 44% of the patients in the studies, respectively. Isolated central nervous system relapse rates decreased to <2% in the last two trials. Secondary brain tumors developed in 12 patients at 8-22 years after cranial irradiation. Improvement of the remission induction rates and the complete omission of irradiation are currently main objectives in our studies.
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114
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Bitanihirwe BKY, Lim MP, Kelley JF, Kaneko T, Woo TUW. Glutamatergic deficits and parvalbumin-containing inhibitory neurons in the prefrontal cortex in schizophrenia. BMC Psychiatry 2009; 9:71. [PMID: 19917116 PMCID: PMC2784456 DOI: 10.1186/1471-244x-9-71] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2009] [Accepted: 11/16/2009] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND We have previously reported that the expression of the messenger ribonucleic acid (mRNA) for the NR2A subunit of the N-methyl-D-aspartate (NMDA) class of glutamate receptor was decreased in a subset of inhibitory interneurons in the cerebral cortex in schizophrenia. In this study, we sought to determine whether a deficit in the expression of NR2A mRNA was present in the subset of interneurons that contain the calcium buffer parvalbumin (PV) and whether this deficit was associated with a reduction in glutamatergic inputs in the prefrontal cortex (PFC) in schizophrenia. METHODS We examined the expression of NR2A mRNA, labeled with a 35S-tagged riboprobe, in neurons that expressed PV mRNA, visualized with a digoxigenin-labeled riboprobe via an immunoperoxidase reaction, in twenty schizophrenia and twenty matched normal control subjects. We also immunohistochemically labeled the glutamatergic axon terminals with an antibody against vGluT1. RESULTS The density of the PV neurons that expressed NR2A mRNA was significantly decreased by 48-50% in layers 3 and 4 in the subjects with schizophrenia, but the cellular expression of NR2A mRNA in the PV neurons that exhibited a detectable level of this transcript was unchanged. In addition, the density of vGluT1-immunoreactive boutons was significantly decreased by 79% in layer 3, but was unchanged in layer 5 of the PFC in schizophrenia. CONCLUSION These findings suggest that glutamatergic neurotransmission via NR2A-containing NMDA receptors on PV neurons in the PFC may be deficient in schizophrenia. This may disinhibit the postsynaptic excitatory circuits, contributing to neuronal injury, aberrant information flow and PFC functional deficits in schizophrenia.
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115
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Suzuki AMM, Yoshimura A, Ozaki Y, Kaneko T, Hara Y. Cyclosporin A and phenytoin modulate inflammatory responses. J Dent Res 2009; 88:1131-6. [PMID: 19897783 DOI: 10.1177/0022034509350566] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Gingival overgrowth is a common side-effect of administration of the immunosuppressant cyclosporin A and the anti-epileptic drug phenytoin. While cyclosporin-induced gingival overgrowth is often accompanied by gingival inflammation, phenytoin-induced gingival overgrowth usually forms fibrotic lesions. To determine whether these drugs alter the inflammatory responses of gingival fibroblasts, we investigated the effects of cyclosporin and phenytoin on Toll-like receptor (TLR)-mediated responses to microbial components. In Chinese hamster ovary reporter cell lines, cyclosporin alone triggered signaling, whereas phenytoin down-regulated signaling induced by the TLR2 or TLR4 ligand. In human gingival fibroblasts, cyclosporin alone did not induce evident inflammatory responses, but augmented the expression of CD54 and the production of interleukin (IL)-6 and IL-8 induced by TLR ligands, whereas phenytoin attenuated those responses. Cyclosporin also augmented CD54 expression in gingiva of mice injected with lipopolysaccharide. These results indicated that cyclosporin positively and phenytoin negatively modulated inflammatory responses of human gingival fibroblasts.
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116
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Okonogi S, Kaneko T, Ezure M, Satou Y, Hasegawa Y, Okada S, Kubota H. [Open stent-grafting for the distal arch aneurysm using a new delivery system]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 2009; 62:1035-1038. [PMID: 19894565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Recently, open stent-grafting has been employed for distal arch aneurysm. However, several complications have been reported. We have used a new delivery system (CLATE) in 8 patients who underwent open stent-grafting. The advantage of CLATE is that it is flexible, and can freely change its shape. Using this delivery system, stent graft is hard to dislocate, and can be delivered at the target site accurately. Therefore, CLATE is considerd to be able to prevent aortic wall injury, peripheral embolic complication and paraplegia.
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117
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Haba H, Tsukada K, Asai M, Nishinaka I, Sakama M, Goto S, Hirata M, Ichikawa S, Nagame Y, Kaneko T. Startup of transactinide chemistry in JAERI. RADIOCHIM ACTA 2009. [DOI: 10.1524/ract.2001.89.11-12.733] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The transactinide nuclides261Rf and262Db have been successfully produced in the248Cm(18O,5n) reaction at 99 MeV and in the248Cm(19F,5n) reaction at 100, 103, and 106 MeV, respectively, at the JAERI tandem accelerator. The on-line ion exchange experiments with an automated fast and repetitive liquid chromatography separation system were performed in the HNO3/HF system using Rf homologues89mZr and167,165Hf produced in the89Y(p,n) and152Gd(18O,xn) reactions, respectively. The radiotracers88Zr,175Hf, and234Th were also prepared and the distribution coefficients on ion exchange resins were measured systematically in 1-11 M HCl and 1-14 M HNO3with the batch method. It was found that anion exchange experiments of Rf in 8 M HNO3and 9 M HCl provided information useful to extract the ionic radius of Rf and to verify the influence of relativistic effects.
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118
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Shinohara A, Miura T, Yokoyama A, Takamiya K, Kaneko T, Muroyama T, Saito T, Hamajima Y, Muramatsu H, Kojima S, Baba H, Furukawa M. Pion transfer processes of pionic atoms in the gas mixtures containing hydrogen at various pressures. RADIOCHIM ACTA 2009. [DOI: 10.1524/ract.2001.89.11-12.849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The pion capture process in gas mixtures containing hydrogen was studied by measuring pionic X rays and π0 decays. A little difference in pion transfer process was found between the H2+D2 and H2O+D2O systems. Pressure-dependence of the transfer rates was also revealed in the CH4+Ar system by the measurements at several gas pressures. The mechanism of the pion transfer process was discussed based on a comparison between transfer parameters in the gas and liquid phases.
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119
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Takiyoshi N, Nakano H, Kaneko T, Aizu T, Nakajima K, Kimura K, Akasaka E, Rokunohe D, Nishizawa A, Kusumi T, Sawamura D. A linear basal cell carcinoma undergoing spontaneous regression. Clin Exp Dermatol 2009; 34:e411-3. [PMID: 19747299 DOI: 10.1111/j.1365-2230.2009.03392.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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120
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Kunieda E, Nishimura G, Kaneko T, Hirobe S, Masaki H, Kamagata S. Spinal deformity after intra-operative radiotherapy for paediatric patients. Br J Radiol 2009; 83:59-66. [PMID: 19690075 DOI: 10.1259/bjr/50353703] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The purpose of this study was to clarify the incidence and characteristics of late-onset complications of the spine in children who underwent intra-operative radiation therapy (IORT) for common paediatric malignant tumours. 12 children with more than 4 years of follow-up after IORT were included and, in 11 of these, thoracic and/or lumbar spines were irradiated. To compare doses of irradiation to the spine with the resulting deformities, dose simulations of IORT were carried out on two selected cases using a radiation treatment planning system with a pencil-beam algorithm. The mean follow-up period was 135 months (range, 53-234 months). Radiographic reviews found spinal deformity in six patients. Only one patient was symptomatic and the spinal deformity was severe (Grade 3), whereas spinal deformity was mild in the remaining five patients without clinical symptoms (Grade 1). In all of the six patients, anterior wedge-shaped deformity was dominant, and scoliosis was found in only two patients. In one particular case with nephrectomy, irradiation had penetrated much deeper than usual at the site of nephrectomy, and dose distribution was asymmetric, causing clinically significant spinal deformity with scoliosis. In conclusion, specific deformities of the spine observed after IORT can be explained on the basis of dose distribution of the electron beam to the spine.
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121
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Suzuki K, Iwai H, Kaneko T, Sakaguchi M, Hoshino S, Inaba M. Induction of Parotitis by Fine-Needle Aspiration in Parotid Warthin's Tumor. Otolaryngol Head Neck Surg 2009; 141:282-4. [DOI: 10.1016/j.otohns.2009.05.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2009] [Revised: 05/11/2009] [Accepted: 05/19/2009] [Indexed: 10/20/2022]
Abstract
OBJECTIVES: To estimate parotitis caused by fine-needle aspiration (FNA) in parotid Warthin tumor. STUDY DESIGN: Case series with chart review. SETTING: Hospital records were reviewed for 104 parotid tumors (103 patients) including 35 Warthin tumors, which underwent FNA within our department. RESULTS: Three patients with four Warthin tumors among them noticed parotid pain, swelling, and abscess formation as a consequence of acute parotitis after FNA. Examinations of the materials obtained from tumor puncture or drainage before the start of antibiotic therapy showed no bacterial association in any patient. Two of the patients with Warthin tumor underwent parotidectomy, and the surgical specimens indicated histopathological changes with necrosis, abscess, granuloma, and the infiltration of inflammatory cells including Langhans-type multinucleated giant cells. CONCLUSIONS: It is conceivable that Warthin tumor bears the characteristics of inflammation induced by the FNA procedure without any relation to infection. Therefore, it may be better to avoid routine FNA and give priority to diagnostic imagings over FNA in the diagnosis of tumors strongly suspected as Warthin tumor.
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Takiyoshi N, Nakano H, Matsuzaki Y, Aizu T, Kaneko T, Rokunohe D, Akasaka E, Jin K, Sawamura D, Ohara K. An eclipse in the subungual space: a diagnostic sign for a subungual epidermal cyst? Br J Dermatol 2009; 161:962-3. [PMID: 19681855 DOI: 10.1111/j.1365-2133.2009.09393.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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123
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Kaneko T, Sehgal V, Skinner H, Al-Ghazi M, Hoang B, Ramsinghani N, Keyak J. SU-FF-T-43: Feasibility of Using Radioactive Bone Cement to Treat Vertebral Metastases. Med Phys 2009. [DOI: 10.1118/1.3181515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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124
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Okada S, Kaneko T, Ezure M, Satoh Y, Hasegawa Y, Koike N, Okonogi S, Takihara H. [Aortic dissection and annulo-aortic ectasia complicating systemic lupus erythematousus; report of a case]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 2009; 62:492-495. [PMID: 19522212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A 31-year-old man with systemic lupus erythematosus had received long term steroid therapy. He had no compliant, but magnetic resonance imaging showed aortic dissection and annulo-aortic ectasia. Echocardiogram showed severe aortic regurgitation. Therefore aortic root replacement was performed. A histological study of the aortic wall demonstrated myxomatous degeneration in the media. He recovered uneventfully, except for receiving continious hemodia filtration during 4 days after the operation
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Ramlau R, Thomas M, Plummer R, Reck M, Heussel CP, Lau M, Parikh R, Kaneko T, Oliva C, Novello S. Phase I study of lapatinib, a dual-tyrosine kinase inhibitor, and pemetrexed in the second-line treatment of advanced or metastatic non-small cell lung cancer. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e19027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e19027 Background: Lapatinib is an oral, reversible small-molecule inhibitor of epidermal growth factor receptor (EGFR) and human epidermal growth factor receptor 2 (HER2). EGFR overexpression is very common in non-small-cell lung cancer (NSCLC), ranging from 30% to 83%, whereas HER2 overexpression occurs in about 20%. Pemetrexed is currently given as second-line therapy and achieves a 9% response rate. The rationale for EGFR/HER2 inhibition in combination with pemetrexed is to demonstrate clinical synergy as previously shown with gemcitabine, another fluoropyrimidine pathway inhibitor. Methods: Eligible patients included those with stage IIIB or IV NSCLC and European Cooperative Oncology Group performance status of 0–2 following 1 previous chemotherapy treatment. Patients were treated in 3 escalating dose levels (DLs) of pemetrexed (given intravenously every 21 days) and daily lapatinib (DL 0: 400 mg/1,250 mg; DL 1: 500 mg/1,250 mg; DL 2: 500 mg/1,500 mg, respectively). A standard phase 1, 3+3 trial design was used. The primary objective was to determine the optimal treatment regimen. Results: Eighteen patients were treated (DL 0: n=4, DL 1: n=8; DL 2: n=6). The most common adverse events (any grade) were diarrhea (61%), rash (44%), fatigue (28%), nausea (28%), anemia (28%), anorexia (22%), vomiting (22%), dyspnea (17%), and neutropenia (17%). Grade 3/4 adverse events were lymphocytopenia (n=5) and neutropenia (n=5). Other related grade 3 events were diarrhea (n=2), nausea (n=1), decreased ejection fraction (n=1), and increased alkaline phosphatase (n=1). The optimal treatment regimen was determined as lapatinib 1250 mg given with 500 mg pemetrexed after occurrence of 3 dose-limiting toxicities during the first cycle in DL 2 (grade 3 diarrhea, grade 4 lymphocytopenia, and grade 3 mucositis). No further dose-limiting toxicities were observed in DL 0 or DL 1. Preliminary evidence of clinical activity was encouraging, with 3 patients showing partial response. Conclusions: The combination of lapatinib with pemetrexed is well tolerated; encouraging activity has been demonstrated in pretreated NSCLC patients and warrants further studies. [Table: see text]
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