301
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Aburano T, Takayama T, Nakajima K, Seto M, Tonami N, Hisada K, Yamada M, Iida Y, Kawamura M, Matsudaira M. [Measurement of split glomerular filtration rate by fractional renal uptake of Tc-99m DTPA]. KAKU IGAKU. THE JAPANESE JOURNAL OF NUCLEAR MEDICINE 1985; 22:1781-7. [PMID: 3913792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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302
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Seto M, Alexander M. Effect of bacterial density and substrate concentration on yield coefficients. Appl Environ Microbiol 1985; 50:1132-6. [PMID: 4091549 PMCID: PMC238712 DOI: 10.1128/aem.50.5.1132-1136.1985] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Measurements were made of the yield coefficient during the aerobic metabolism of glucose by a heterogeneous bacterial mixture. Expressed in terms of carbon, the coefficient was approximately 0.48. The value did not vary with initial bacterial densities ranging from 0.4 pg to 40 micrograms of cell carbon per ml and with glucose concentrations ranging from 43 pg to 100 micrograms of carbon per ml. Under all these circumstances, about 44% of the glucose carbon was converted to CO2, and 7.4% was excreted as organic products. The significance of uncharacterized organic substrates contaminating the medium to the coefficients calculated for low glucose concentrations is discussed.
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303
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Takayama T, Aburano T, Seto M, Bunko H, Tonami N, Hisada K, Matsudaira M, Hirano S, Hisazumi H. [Radionuclide study in the detection of varicocele in infertile men]. KAKU IGAKU. THE JAPANESE JOURNAL OF NUCLEAR MEDICINE 1985; 22:1635-40. [PMID: 3831476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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304
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Takase Z, Fujiwara M, Komoto Y, Seto M, Shirafuji H, Shimizu T, Ishikawa M, Ichinoe K, Kutsuzawa T, Uno Y. [Fundamental and clinical study on cefpiramide in obstetrics and gynecology. Obstetrics and Gynecology Study Group for Cefpiramide]. THE JAPANESE JOURNAL OF ANTIBIOTICS 1985; 38:2313-37. [PMID: 4079005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Fundamental and clinical studies on a new cephalosporin antibiotic, cefpiramide (CPM), was carried out under a joint study program, in order to evaluate the usefulness of the drug in treating infection of the female genital organs. The results obtained were as follows: CPM was readily transported to female genital organ tissues, and the concentrations of the drug exceeded 35 micrograms/g in various organ tissues in about 1 hour, following intravenous injection of 1 g. A level of more than 2 micrograms/g was maintained even 14 hours after the injection. The transport of CPM to various tissues was also studied following intravenous drip infusion of 1 g for 1 hour. The concentrations in tissues were slightly low but similar to those following intravenous injection. The peak concentration of the drug in the dead space exudate was 3.1-20.4 micrograms/ml, following intravenous injection and intravenous drip infusion of 1 g. The MIC80 of CPM were 3.13-12.5 micrograms/ml against S. aureus, Klebsiella sp., P. mirabilis and P. aeruginosa. Clinical effects of CPM were analyzed in 158 patients, including 56 cases with intrauterine infection, 37 cases with intrapelvic infection, 22 cases with external genital infection, 31 cases with adnexitis, 6 cases with postoperative wound infection and 6 cases with other infections. Excellent response was seen in 28 cases (17.7%), good response in 120 (75.9%) poor response in 10 (6.3%). The rate of response was calculated as 93.7%. Safety of the drug was analyzed in 258 patients, and side effects occurred in 4 (1.6%). Of these 4 patients, rash was in 1 patient, heat sensation in 1 patient, nausea in 1 patient and rash accompanying edema in 1 patient. Abnormal values in clinical laboratory findings were seen in 7 patients. Elevations of transaminase were seen in 5 patients and decrease of platelet was seen in a patient, and then elevations of transaminase with decrease of platelet was seen in a patient, and no other changes of particular note appeared.
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305
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Rabito SF, Seto M, Maitra SR, Carretero OA. Clearance and metabolism of glandular kallikrein in the rat. THE AMERICAN JOURNAL OF PHYSIOLOGY 1985; 248:E664-8. [PMID: 3847263 DOI: 10.1152/ajpendo.1985.248.6.e664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
This study was undertaken to characterize the clearance of circulating rat glandular kallikrein and to determine the contribution of various organs and the urinary excretion to the removal of glandular kallikrein from the bloodstream. We injected either active 125I-kallikrein or kallikrein inactivated with phenylmethylsulfonyl fluoride (125I-PMSF-kallikrein) intravenously into intact or nephrectomized rats and then studied the disappearance rate of trichloroacetic acid (TCA)-precipitable radioactivity from the circulation. Inactivation by PMSF markedly reduced the binding of kallikrein to plasma protease inhibitors. The removal rate of the acid-precipitable radioactivity fit a biexponential curve for both active and inactive kallikrein. In the intact rats approximately 50% of the radioactivity was removed from the circulation 30 min after the injection of active 125I-kallikrein. Removal of the kidneys did not significantly affect the clearance of active kallikrein. On the other hand, inactive 125I-PMSF-kallikrein was removed from blood faster than active 125I-kallikrein in normal animals. Approximately 50% of the radioactivity was removed from the circulation 8 min after the injection, and the half-life of inactive 125I-PMSF-kallikrein was markedly prolonged by bilateral nephrectomy. Active 125I-kallikrein was taken up by tissues, particularly the liver and the kidney. In urine, less than 2% of the radioactivity was excreted in 60 min as TCA-precipitable material. We concluded that glandular kallikrein is cleared rapidly from the circulation of the rat, probably in the form of a complex with a plasma protease inhibitor.(ABSTRACT TRUNCATED AT 250 WORDS)
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306
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Bunko H, Seto M, Taki J, Nanbu I, Shiire Y, Tonami N, Hisada K, Kawamura M, Iida T, Yamada M. [Development of a new Xe-133 single dose multi-step method (SDMM) for muscle blood flow measurement using a gamma camera--methodology and basic evaluation]. KAKU IGAKU. THE JAPANESE JOURNAL OF NUCLEAR MEDICINE 1985; 22:575-82. [PMID: 4032853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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307
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Hamasima N, Seto M, Momoi T, Takahashi T. Serological analysis of early mouse embryo with rat monoclonal antibodies produced against mouse teratocarcinoma cells. Differentiation 1985; 28:260-7. [PMID: 3838958 DOI: 10.1111/j.1432-0436.1985.tb00834.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Rat-mouse hybridoma antibodies were produced against mouse teratocarcinoma F9 or PCC4 aza1 cells, and four clones were established. Both the F11 (IgM) and F20 (IgG2c) antibodies showed a similar specificity, reacting only with nullipotential teratocarcinoma cells. They were also found to agglutinate sheep red blood cells. Solid-phase enzyme-linked immunofluorescence assay showed that, among the neutral glycolipids studied, they only reacted with the Forssman antigen. P2 antibody (IgG2b) reacted with the undifferentiated-type and embryonal endodermtype teratocarcinoma cells. During the preimplantation stage, this antibody did not stain mouse embryos, but it reacted very weakly with the inner cell mass of blastocysts cultured in vitro. In the 5th-day embryo, the embryonic ectoderm as well as the visceral and parietal endoderm were positive, but the extraembryonic ectoderm was not. Mesoderm of the 7.5th-day embryo also reacted with this antibody. However, P2 antigen was not observed in the 16th-day embryo or in adult tissues. F2 antibody (IgG2a), which was reactive with all of the cultured cell lines tested, showed an immunoreaction with mouse embryos throughout the preimplantation stage. However, in the 7.5th-day embryo, the presence of F2 was limited to the cells forming the parietal endoderm. This antigen was present in some epithelial tissues of the 16th-day embryo and adult mouse. Of these antigens, P2 and F2 are probably novel differentiation antigens of the early mouse embryo. Together with the Forssman antigen, these will be important markers for analyzing cell-surface antigens of mouse teratocarcinoma cells as well as embryos.
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308
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Ueda R, Nishida K, Koide Y, Tsuge I, Seto M, Yoshida M, Miyoshi I, Ota K, Takahashi T. Two mouse monoclonal antibodies detecting two different epitopes of an activated lymphocyte antigen on adult T-cell leukemia cells. Cancer Res 1985; 45:1314-9. [PMID: 2578877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Mouse monoclonal antibodies were produced against MT-2 cell line derived from adult T-cell leukemia or human T-cell leukemia virus-rich fraction therefrom. Two IgG1 antibodies, Ta60a and Ta60b, were found to be reactive not only with cell lines derived from adult T-cell leukemia or cutaneous T-cell lymphomas, but also with activated peripheral blood lymphocytes, suggesting the similarity of Ta60 antigen group to Tac antigen which is present on interleukin 2 receptor. Thus, the relationship among these antigens was studied. Two Ta60 antibodies and Tac antibody immunoprecipitated the molecule with almost identical electrophoretic mobility, approximately a Mr 60,000 antigen from [3H]glucosamine-labeled activated peripheral blood lymphocytes or MT-2, MT-1, or ATN-1 cells from adult T-cell leukemia and a Mr 53,000 antigen from HUT-102 cells derived from cutaneous T-cell lymphomas. Further, Tac antibody was found to immunoprecipitate Ta60b molecule on 125I-labeled MT-2 cells by sequential immunoprecipitation, indicating that these two epitopes are on the same molecule. Antibody binding inhibition assays with either 3H-labeled Ta60a or Ta60b antibody demonstrated that Ta60a and Tac are the same epitope, but different from Ta60b. Thus, at least two epitopes were demonstrated to be present on interleukin 2 receptor molecule. However, Ta60b antibody showed almost no blocking effects on proliferation of an interleukin-2-dependent cell line, whereas Ta60a antibody did. Various hematopoietic tumor cells were typed with these two antibodies, but the results with Ta60b antibody were described, because they showed a similar specificity. Ta60b antibody reacted with all adult T-cell leukemia cases, but did not react with T-cell acute lymphoblastic leukemia, lymphoblastic lymphoma, or mature T-cell lymphoma. Interestingly, 3 of 12 acute myeloblastic leukemia and 2 of 5 chronic myelocytic leukemia in blastic crisis showed positive reactions. One-third of B-cell chronic lymphocytic leukemia and B-cell lymphoma as well as a few B-cell lines were also weakly reactive with this antibody. A part of the results with direct tests was confirmed by the absorption tests. The results obtained demonstrated the presence of Ta60b on a certain fraction of malignant hematopoietic cells of other than T-cell origin.
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309
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Takayama T, Koizumi K, Aburano T, Tada A, Seto M, Seki H, Bunko H, Tonami N, Hisada K. [Necessity of oblique views in detecting space occupying lesions by kidney scintigraphy]. KAKU IGAKU. THE JAPANESE JOURNAL OF NUCLEAR MEDICINE 1984; 21:1495-501. [PMID: 6530828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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310
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Tsuge I, Ueda R, Nishida K, Namikawa R, Seto M, Maruyama T, Takamoto S, Matsuoka H, Torii S, Ota K. Five antigens on human T cells detected by mouse monoclonal antibodies. Clin Exp Immunol 1984; 58:444-52. [PMID: 6333946 PMCID: PMC1577066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Five antigen systems were defined by the monoclonal antibodies (MoAb) produced against mature T cells. The antigens recognized were grouped into two categories based on the antigen distribution on T cells. (a) Tp 120 [mol. wt 120 kilodaltons (120kD)] and Tp40 (40kD), these are on most peripheral T cells, but not on any other cell lineages, i.e. pan-T antigen. (b) Ts32 (32kD), Ts145 (145kD) and TsA (not determined), these antigens are present only on certain populations of peripheral T cells, i.e., T subset antigen. Among these five, Ts145 and TsA are probably novel T cell antigens. Cell surface phenotypes of leukaemias and lymphomas were typed with these MoAb. Ia like antigen negative, null cell type acute lymphocytic leukaemia (Ia- null ALL) are Tp40+, suggesting that this type of ALL belongs to a T cell lineage. T cell ALL (T-ALL) and lymphoblastic lymphoma (LL) were both Tp40+, Ts32+, TsA+ and a half of the cases were Tp120+, but the expression of Tp40 was stronger on LL cells. Mature T cell (T2) lymphoma and adult T cell leukaemia (ATL) were Tp120+, TsA+, while Tp40 was weakly expressed on only one third of the cases. These MoAb were found to be useful to estimate the origin of various T cell malignancies.
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311
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Seto M, Tonami N, Nakajima K, Bunko H, Aburano T, Takayama T, Ohguchi M, Hisada K. [Effect of coughing on 133Xe ventilation study in a patient with bullous disease]. KAKU IGAKU. THE JAPANESE JOURNAL OF NUCLEAR MEDICINE 1984; 21:1475-9. [PMID: 6530826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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312
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Umemoto N, Kato Y, Takeda Y, Saito M, Hara T, Seto M, Takahashi T. Conjugates of mitomycin C with the immunoglobulin M monomer fragment of a monoclonal anti-MM46 immunoglobulin M antibody with or without serum albumin as intermediary. JOURNAL OF APPLIED BIOCHEMISTRY 1984; 6:297-307. [PMID: 6443109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
In studies on antitumor antibody-drug conjugates as potential antitumor agents with improved tumor specificity, conjugates of mitomycin C (MMC) with the IgMs fragment of a monoclonal IgM antibody to a tumor-associated antigen (MM antigen) on mouse mammary tumor MM46 cell (anti-MM46 IgMs) were prepared by direct and bovine serum albumin (BSA)-mediated indirect conjugation. MMC was linked to the IgMs and BSA by the use of 1a-[4-(N-succinimidoxycarbonyl)butyryl]mitomycin C, which allowed the slow release of MMC. In the indirect conjugation, the thiol group of BSA was first protected as the 2-pyridyldithio group and, after the MMC binding, regenerated with dithiothreitol, and the resulting BSA-MMC was reacted with the IgMs having the maleimide group introduced with N-succinimidyl m-(N-maleimido)benzoate. Anti-MM46 IgMs-MMC was more cytotoxic against the target MM antigen-positive but Thy 1.2 antigen-negative MM46 cells than control anti-Thy 1.2 IgM-MMC. No such selective cytotoxicity was observed between anti-MM46 IgMs-MMC and anti-Thy 1.2 IgMs-MMC against the MM antigen- and Thy 1.2 antigen-negative MM48 cells. Anti-MM46 IgMs-BSA-MMC was more cytotoxic against MM46 cells than was a mixture of unconjugated anti-MM46 IgMs and BSA-MMC.
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313
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Seto M, Nakajima K, Bunko H, Aburano T, Takayama T, Tonami N, Hisada K, Kojima K, Yamada M, Iida Y. [Experiment with respiratory gated liver imaging with Fourier analysis in patients with liver cirrhosis]. KAKU IGAKU. THE JAPANESE JOURNAL OF NUCLEAR MEDICINE 1984; 21:867-70. [PMID: 6492480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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314
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Minami S, Ueda R, Shiraki T, Tanimoto M, Namikawa R, Seto M, Nishida K, Tsuge I, Ota K, Takahashi T. Two monoclonal antibodies detecting allotypic determinants of HLA-A. TISSUE ANTIGENS 1983; 22:239-45. [PMID: 6196873 DOI: 10.1111/j.1399-0039.1983.tb01199.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Three mouse hybridomas producing cytotoxic antibodies against HLA were established. By standard microcytotoxicity test against panels of normal controls, the antigen defined by MA-9 antibody (IgM) showed a good correlation with HLA-A9 alloantigen detected by conventional typing alloantisera (r = 1.0). Family studies also showed that MA-9 determinant segregated with HLA-A9. MA-10 antibody (IgM) reacted with all HLA-A10 positive lymphocyte donors and cross-reacted with two thirds of HLA-AW33 positive donors. Ml-1 antibody (IgG2a) reacted with all the panel cells tested and immunoprecipitated a molecule of 43,000 daltons from Nonidet P-40 lysates of 3H-glucosamine-labelled cells. The results showed that MA-9 and MA-10 antibodies can be used as routine tissue typing reagents.
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315
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Seto M, Takahashi T, Nakamura S, Matsudaira Y, Nishizuka Y. In vivo antitumor effects of monoclonal antibodies with different immunoglobulin classes. Cancer Res 1983; 43:4768-73. [PMID: 6192909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Monoclonal antibodies were produced against MM46, an MM antigen-positive, ascitic mouse mammary tumor of C3H/He mice, and 14 clones were found to produce antibodies reactive with MM46, but not with an MM antigen-negative MM48 tumor. Among these 14 antibodies, 10 reacted also with lymph node cells of C3H.B6-Ly-6b, Ly-6.2 congenic mice. The antigen defined by the 10 antibodies was provisionally designated MM1, and the one defined by the other 4 was designated MM2. Further analysis of MM1 by antibody binding inhibition assay with 3H-labeled MM1-gamma 2b-1 antibody revealed that 8 of the 10 antibodies as well as monoclonal anti-Ly-6.2 showed significant inhibition. This result indicated that there were more than two antigenic determinants on MM1 antigen. The immunoglobulin class of eight antibodies detecting the same antigenic determinant on MM1 was examined and was found to cover major classes of mouse immunoglobulin (mu, gamma 1, gamma 2a, gamma 2b, gamma 3, and alpha). Therefore, the in vivo effect against MM46 tumor cells by these antibodies was studied by a serological tumor neutralization assay. Tumor cells (4 X 10(5)) were treated with antibodies and then injected s.c. into syngeneic C3H/He mice. Ten days later, the tumor was weighed. gamma 2a antibody showed significant suppression of tumor growth, and both gamma 2b and gamma 1 antibodies also revealed suppression. However, mu, gamma 3, and alpha antibodies did not show any significant effect on the tumor growth. To elucidate the mechanisms of tumor suppression by antibodies, the role of macrophages was studied by the antibody-dependent macrophage-mediated cytotoxicity test. In accordance with the in vivo tumor effects, gamma 2a antibody showed 40 to 60% cytotoxicity up to the concentration of 1 microgram/ml, and both gamma 2b and gamma 1 antibodies were also cytotoxic, although less so than gamma 2a. Neither mu nor alpha antibody showed any significant cytotoxicity. gamma 3 antibody showed very weak cytotoxicity against MM46 tumor cells. Thus, a good correlation was observed between the in vivo antitumor effects and in vitro antibody-dependent macrophage-mediated cytotoxicity activity with regard to each class of immunoglobulin, which suggested that macrophages may play an important role in the in vivo antitumor effect of the antibodies used.
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316
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Takase Z, Komoto Y, Nakayama M, Miyoshi T, Hujiwara M, Seto M, Shirafuji H. [Clinical evaluation of latamoxef in the perinatal period]. THE JAPANESE JOURNAL OF ANTIBIOTICS 1983; 36:2431-6. [PMID: 6655862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Latamoxef (LMOX), a new oxacephem antibiotic with high activity against Gram-negative bacteria has been investigated for use in No. of 58 mothers in perinatal period, and obtained following results. Concentration of LMOX in maternal serum was 43.4 micrograms/ml at the 1 hour after intravenous administration of 1 g. In umbilical cord serum and amniotic fluid, LMOX showed good translation after intravenous administration of 1 g into the mother, but no adverse effect appeared in the neonate. LMOX is highly useful antibiotic in perinatal infections, and the safe dose of LMOX to the mother in perinatal period is 1--2 g per day considerably.
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317
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Takahashi T, Seto M, Hara T. [In vitro and in vivo antitumor activity of monoclonal anti-MM46 antibody-ricin A chain conjugate]. Gan To Kagaku Ryoho 1983; 10:1894-1900. [PMID: 6882010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
In an approach to antitumor agents with improved tumor specificity, the ricin toxic subunit A chain was covalently coupled with a monoclonal IgG2b antibody directed against MM antigen, a tumor-specific antigen on syngeneic mouse mammary tumor MM46 cells (anti-MM46 IgG), using N-succinimidyl-3-(2-pyridyldithio) propionate as cross-linking agent. The conjugate thus prepared (anti-MM46 conjugate) showed potent dose-dependent cytotoxicity against MM antigen-positive MM46 cells in vitro and inhibited the cell growth at concentrations above 1 micrograms/ml. The immunological specificity was verified by the observation that anti-MM46 conjugate did not show cytotoxicity against MM antigen-negative MM48 cells. In Winn-type tumor-neutralizing assay in which C3H/He mice were inoculated i.p. or s. c. with MM46 cells preincubated with a test material, anti-MM46 conjugate showed greater activity than did anti-MM46 IgG. When a group of five C3H/He mice inoculated i.p. with 5 X 10(4) MM46 cells were treated with an i.p. injection of 1 micrograms of anti-MM46 conjugate on days 1, 3, and 5, all five mice survived tumor free, although those treated with 1 micrograms of anti-MM46 IgG died before day 20 with a life span similar to those of mice treated with non-immune conjugate or phosphate-buffered saline (the control). Anti-MM46 conjugate also showed antitumor effects when injected i.v. to C3H/He mice bearing s. c. inoculated MM46 (inoculum, 4 X 10(6)) on day 1 at doses of 5 to 50 micrograms. Thus, the results demonstrated that in vivo efficacy of anti-MM46 conjugate over anti-MM46 IgG alone by therapeutic experiments as well as by tumor-neutralizing assay and suggested the potential use of monoclonal antibody-cytotoxic agent conjugates in cancer therapy.
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318
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Seto M, Tonami N, Koizumi K, Sui O, Hisada K. [Bone metastasis in gastric cancer--clinical evaluation of bone scintigrams]. KAKU IGAKU. THE JAPANESE JOURNAL OF NUCLEAR MEDICINE 1983; 20:795-801. [PMID: 6663895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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319
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Morita S, Seto M, Hara K, Ide Y, Ishimaru T, Izumi M, Tsujihata M, Nagataki S. [Case of acute water intoxication developing in a healthy adult]. NIHON NAIKA GAKKAI ZASSHI. THE JOURNAL OF THE JAPANESE SOCIETY OF INTERNAL MEDICINE 1983; 72:458-61. [PMID: 6886511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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320
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Kanda K, Seto M. [Test yourself. Keypoints in nursing: nursing of a patient with multiple myeloma]. KURINIKARU SUTADI = CLINICAL STUDY 1983; 4:241-248. [PMID: 6554423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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321
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Wagatsuma M, Seto M, Miyagishima T, Kawazu M, Yamaguchi T, Ohshima S. Synthesis and antibacterial activity of asparagine derivatives of aminobenzylpenicillin. J Antibiot (Tokyo) 1983; 36:147-54. [PMID: 6833130 DOI: 10.7164/antibiotics.36.147] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
In order to improve the antibacterial activity of aminobenzylpenicillin, penicillin derivatives having an asparagine moiety in the 6-acyl side chain (11a approximately g, 12a, b, f, g) were synthesized. The structure-activity relationship of new penicillins, N4-alkyl-asparaginylaminobenzylpenicillins, was investigated. N4-Methyl-D-asparaginylamoxicillin (11a), TA-058, was found to possess a broad spectrum of antibacterial activity against Gram-positive and Gram-negative bacteria. In acute toxicity, TA-058 showed good tolerance in mice (LD50 greater than 10 g/kg, i.v.).
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322
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Takahashi T, Seto M, Hara T. [Preparation and anti-tumor activity of monoclonal antibody against ascitic mammary tumor MM46 cells]. Gan To Kagaku Ryoho 1983; 10:544-50. [PMID: 6192760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
In an approach to antitumor agents with improved tumor specificity, the ricin toxic subunit A chain was covalently coupled with a monoclonal IgG2b antibody directed against MM antigen, a tumor-specific antigen on syngeneic mouse mammary tumor MM46 cells (anti-MM46 IgG), using N-succinimidyl-3-(2-pyridyldithio) propionate as a cross-linking agent. The conjugate thus prepared (anti-MM46 conjugate) showed potent dose-dependent cytotoxicity against MM antigen-positive MM46 cells in vitro and inhibited the cell growth at concentrations above 1 microgram/ml. The immunological specificity was verified by the observation that anti-MM46 conjugate did not show cytotoxicity against MM antigen-negative MM48 cells. In Winn-type tumor-neutralizing assay in which C3H/He mice were inoculated i.p. or s.c. with MM46 cells preincubated with a test material, anti-MM46 conjugate showed greater activity compared that of anti-MM46 IgG. When a group of five C3H/He mice inoculated i.p. with 5 X 10(4) MM46 cells were treated with an i.p. injection of 1 microgram of anti-MM46 conjugate on days 1, 3, and 5, all mice survived tumor free, although those treated with 1 microgram of anti-MM46 IgG died before day 20 with a life span similar to those of mice treated with nonimmune conjugate or phosphate-buffered saline (control). Anti-MM46 conjugate also showed antitumor effects when injected i.v. to C3H/He mice bearing s.c. inoculated MM46 (inoculum, 2 X 10(6] on Day 1 at a dose of 5 to 50 micrograms. Thus, the in vivo efficacy of anti-MM46 conjugate over anti-MM46 IgG alone was demonstrated by therapeutic experiments as well as by tumor-neutralizing assays.
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323
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Matsukage A, Yamaguchi M, Tanabe K, Nishizawa M, Takahashi T, Seto M, Takahashi T. Establishment of hybridoma clones which produce anti-chick embryo DNA polymerase alpha monoclonal antibodies. GAN 1982; 73:850-3. [PMID: 7160577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Four hybridoma clones which produce monoclonal antibodies against chick embryo DNA polymerase alpha have been established. Antibodies produced by the four clones all belonged to the gamma 1-type IgG and precipitated enzyme activity in the presence of Staphylococcus aureus cells. An affinity column prepared with one of the monoclonal antibodies (clone 6-1E) and protein A-Sepharose retained DNA polymerase alpha activity as well as the 135,000 approximately 150,000 and 50,000 approximately 60,000 dalton polypeptides of this enzyme. Thus, the antibody is specific to DNA polymerase alpha.
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324
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Seto M, Umemoto N, Saito M, Masuho Y, Hara T, Takahashi T. Monoclonal anti-MM46 antibody:ricin A chain conjugate: in vitro and in vivo antitumor activity. Cancer Res 1982; 42:5209-15. [PMID: 6814753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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325
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Seto M, Kanda K. [Survey on food intake by patients in the field of internal medicine--nutritional intake and patients' understanding of the diet]. [KANGO GIJUTSU] : [NURSING TECHNIQUE] 1982; 28:1206-20. [PMID: 6923016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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326
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Takase Z, Fujiwara M, Kohmoto Y, Seto M, Shirafuji H. [Study of cefotaxime in the perinatal period]. THE JAPANESE JOURNAL OF ANTIBIOTICS 1982; 35:1893-7. [PMID: 6294369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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327
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Hosokawa T, Ito H, Tanaka T, Ichinoe K, Yamada Y, Suzuki M, Yajima A, Mori T, Takamizawa H, Sekiya S, Sakamoto S, Kawana T, Chen JT, Takada M, Takeuchi H, Akiya K, Hara S, Hara Y, Takeuchi S, Kanazawa K, Yoshizawa H, Tomoda Y, Ohta M, Hattori S, Yagami Y, Mizuno K, Koike K, Suzuoki Y, Totani R, Miwa T, Sugimoto O, Fujimoto A, Doi S, Tojo S, Iwasaki M, Sekiba K, Kohno I, Okazaki H, Ogawa S, Seto M, Komoto Y, Taki I, Tsukamoto N, Iwasaka T, Yamabe T, Nakajima H, Yoshida M. [Phase II trial with cisplatin in ovarian malignancies]. NIHON GAN CHIRYO GAKKAI SHI 1982; 17:31-40. [PMID: 6890088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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328
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Seto M, Takahashi T, Tanimoto M, Nishizuka Y. Production of monoclonal antibodies against MM antigen: the serologic identification of MM antigen with Ly-6.2 alloantigen. THE JOURNAL OF IMMUNOLOGY 1982. [DOI: 10.4049/jimmunol.128.1.201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Abstract
Monoclonal antibodies against MM46, an ascitic mouse mammary tumor of C3H/H2, were produced by fusing mouse myeloma cell line NS-1 with spleen cells from a (BALB/c X C3H/HeN)F1 mice hyperimmunized with MM46, an MM antigen-positive tumor. Eight antibodies showed cytotoxicity against MM46, but not against MM48, an MM antigen-negative ascitic mammary tumor, and one hybridoma produced an agglutinating antibody. One of the cytotoxic monoclonal antibodies, 3-3-C, was selected, and the strain distribution and the tissue distribution of MM antigen were studied. The results demonstrated that MM antigen had a strain distribution identical to Ly-6.2 antigen, and a similar tissue distribution. Therefore, the characterization of MM antigen and Ly-6.2 antigen was investigated. Ly-6.2 antibody was shown to be cytotoxic for MM46, but not for MM48, in accordance with 3-3-C. Genetic segregation analysis of MM and Ly-6.2 antigens in 33 backcross mice demonstrated complete concordance between these two antigens. In addition, MM antigen phenotype of an Ly-6.2 congenic strain, C3H.B6-Ly-6b, was studied, and it was found to be positive in contrast to C3H/HeN. Furthermore, cross-absorption studies revealed that both MM46 cells and C3H.B6-Ly-6b lymph node cells could absorb cytotoxic activities of 3-3-C and monoclonal anti-Ly-6.2 antibody. The results so far obtained suggested strongly that these two loci controlling expression of MM and Ly-6.2 antigens were identical or very closely linked.
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329
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Seto M, Takahashi T, Tanimoto M, Nishizuka Y. Production of monoclonal antibodies against MM antigen: the serologic identification of MM antigen with Ly-6.2 alloantigen. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 1982; 128:201-5. [PMID: 6976371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Monoclonal antibodies against MM46, an ascitic mouse mammary tumor of C3H/H2, were produced by fusing mouse myeloma cell line NS-1 with spleen cells from a (BALB/c X C3H/HeN)F1 mice hyperimmunized with MM46, an MM antigen-positive tumor. Eight antibodies showed cytotoxicity against MM46, but not against MM48, an MM antigen-negative ascitic mammary tumor, and one hybridoma produced an agglutinating antibody. One of the cytotoxic monoclonal antibodies, 3-3-C, was selected, and the strain distribution and the tissue distribution of MM antigen were studied. The results demonstrated that MM antigen had a strain distribution identical to Ly-6.2 antigen, and a similar tissue distribution. Therefore, the characterization of MM antigen and Ly-6.2 antigen was investigated. Ly-6.2 antibody was shown to be cytotoxic for MM46, but not for MM48, in accordance with 3-3-C. Genetic segregation analysis of MM and Ly-6.2 antigens in 33 backcross mice demonstrated complete concordance between these two antigens. In addition, MM antigen phenotype of an Ly-6.2 congenic strain, C3H.B6-Ly-6b, was studied, and it was found to be positive in contrast to C3H/HeN. Furthermore, cross-absorption studies revealed that both MM46 cells and C3H.B6-Ly-6b lymph node cells could absorb cytotoxic activities of 3-3-C and monoclonal anti-Ly-6.2 antibody. The results so far obtained suggested strongly that these two loci controlling expression of MM and Ly-6.2 antigens were identical or very closely linked.
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MESH Headings
- Absorption
- Animals
- Antibodies, Monoclonal/biosynthesis
- Antibodies, Neoplasm/immunology
- Antigens, Ly/genetics
- Antigens, Ly/immunology
- Antigens, Neoplasm/genetics
- Antigens, Neoplasm/immunology
- B-Lymphocytes/immunology
- Crosses, Genetic
- Isoantigens/genetics
- Isoantigens/immunology
- Mammary Neoplasms, Experimental/genetics
- Mammary Neoplasms, Experimental/immunology
- Mice
- Mice, Inbred A
- Mice, Inbred AKR
- Mice, Inbred BALB C
- Mice, Inbred C3H
- Mice, Inbred C57BL
- Mice, Inbred DBA
- Mice, Nude
- T-Lymphocytes/immunology
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330
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Seto M, Kanda K. [A trial at continuing nursing in clinical nursing training in internal medicine - home nursing by the first class of a junior nursing college]. KANGO TENBO. THE JAPANESE JOURNAL OF NURSING SCIENCE 1981; 6:1034-40. [PMID: 6916965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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331
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Bland BH, Sainsbury RS, Seto M, Sinclair BR, Whishaw IQ. The use of sodium pentobarbital for the study of immobility-related (Type 2) hippocampal theta. Physiol Behav 1981; 27:363-8. [PMID: 7301967 DOI: 10.1016/0031-9384(81)90281-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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332
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Tonami N, Seto M, Ueno K, Kubota A, Hisada K. [Experimental and clinical investigations of bone scintigraphy using 99mTc methylene diphosphonate kit]. KAKU IGAKU. THE JAPANESE JOURNAL OF NUCLEAR MEDICINE 1977; 14:911-21. [PMID: 614448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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333
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Shoda M, Nishigata H, Seto M, Kobayashi H, Sekiguchi K. [Trial in clinical training in nursing. V. On comprehensive nursing training - pediatric training]. [KANGO KYOIKU] JAPANESE JOURNAL OF NURSES' EDUCATION 1976; 17:50-4. [PMID: 1044792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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334
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Shoda M, Kobayashi H, Seto M, Nishigata H, Sekiguchi K. [New trial in clinical training of nursing. V. Comprehensive nursing training--clinical training in obstetrics]. [KANGO KYOIKU] JAPANESE JOURNAL OF NURSES' EDUCATION 1975; 16:759-63. [PMID: 1042346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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335
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Shoda M, Sekiguchi K, Seto M, Kobayashi H, Nishigata H. [A new trial of training in clinical nursing. V. Comprehesive nursing training--nursing of adults. 3. Clinical training in psychiatric nursing]. [KANGO KYOIKU] JAPANESE JOURNAL OF NURSES' EDUCATION 1975; 16:688-94. [PMID: 1042339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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336
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Shora M, Ishihara N, Seto M, Kobayashi H, Nishigata H. [A trial in clinical nursing training. V. Comprehensive nursing training--nursing of adults. 2. Clinical training in the field of surgery]. [KANGO KYOIKU] JAPANESE JOURNAL OF NURSES' EDUCATION 1975; 16:640-4. [PMID: 53311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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337
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Shoda M, Seto M, Kobayashi H, Nishigata H, Sekiguchi K. [Trial in clinical training in nursing. V. Comprehensive training in adult nursing. 1. Clinical training in the field of internal medicine]. [KANGO KYOIKU] JAPANESE JOURNAL OF NURSES' EDUCATION 1975; 16:566-70. [PMID: 1042352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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338
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Shoda M, Seto M, Kobayashi H, Nishigata H, Sekiguchi K. [Trial in clinical nursing training. V. Comprehensive training of clinical nursing - a general outline]. [KANGO KYOIKU] JAPANESE JOURNAL OF NURSES' EDUCATION 1975; 16:500-6. [PMID: 1041289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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339
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Seto M. [Bedside nursing. Nursing of a patient with acute leukemia]. KANGOGAKU ZASSHI 1975; 39:697-701. [PMID: 811874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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340
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341
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Ishibiki A, Wada S, Seto M, Sasaki G, Arai H. [Proceedings: Paired close bipolar electrode recordings in rabbit heart ventricle]. NIHON SEIRIGAKU ZASSHI. JOURNAL OF THE PHYSIOLOGICAL SOCIETY OF JAPAN 1974; 36:326-7. [PMID: 4478431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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342
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Seto M. [Assistance of patients during bronchography]. [KANGO GIJUTSU] : [NURSING TECHNIQUE] 1974; 20:58-66. [PMID: 4498018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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343
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344
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Yamaguchi T, Seto M, Oura Y, Arai Y, Enomoto K. Studies on a new antitumor antibiotic, largomycin. 3. Biological properties and antitumor activity of largomycin F-II. J Antibiot (Tokyo) 1970; 23:382-7. [PMID: 5453314 DOI: 10.7164/antibiotics.23.382] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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