1
|
Itagaki M, Iketani O, Enoki Y, Chuang VTG, Taguchi K, Uno S, Uchida S, Namkoong H, Uwamino Y, Takano Y, Hasegawa N, Matsumoto K. Analysis of Risk Factors for Developing Tuberculosis in Patients Who Received Prophylactic Latent Tuberculosis Infection Treatment with Experience of Biologic Medications. Biol Pharm Bull 2023; 46:1832-1837. [PMID: 38044103 DOI: 10.1248/bpb.b23-00521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Biologic medications have dramatically improved the treatment outcomes of immunological inflammatory diseases, but their immunosuppressive effects put patients at risk for tuberculosis (TB). We investigated the risk factors for developing TB in patients treated for latent tuberculosis infection (LTBI) who also had experience of using biologic medications. At Keio University Hospital, we retrospectively investigated patients treated with anti-mycobacterial drugs before or concurrently with biologic medications from January 2012 to August 2020. Patients in the 'follow-on cases group' who had a positive TB screening test after initiating biologic medications and subsequently started LTBI treatment were excluded. We researched and compared the patient characteristics for TB and non-TB patient groups. Of the 146 eligible patients, 5 (3.4%) developed TB. The incidence rate was 600/100000 person-years. There were no significant differences between TB and non-TB patient groups in the history of TB, interferon-gamma release assay (IGRA), duration of biologic medication therapy, LTBI treatment periods, concomitant use of calcineurin inhibitors or anti-rheumatic drugs. The percentage of patients who received prednisolone at a dose of ≥15 mg for more than 1 month was higher in those who developed TB than in those who did not (40.0 vs. 7.1%, p = 0.054); however, this difference was not statistically significant. Regular monitoring of TB is necessary for long-term concomitant use of high prednisolone doses during and after the administration of biologic medications.
Collapse
Affiliation(s)
- Marina Itagaki
- Division of Pharmacodynamics, Faculty of Pharmacy, Keio University
| | - Osamu Iketani
- Department of Infectious Diseases, Keio University School of Medicine
| | - Yuki Enoki
- Division of Pharmacodynamics, Faculty of Pharmacy, Keio University
| | - Victor Tuan Giam Chuang
- Discipline of Pharmacy, Curtin Medical School, Faculty of Health Sciences, Curtin University
| | - Kazuaki Taguchi
- Division of Pharmacodynamics, Faculty of Pharmacy, Keio University
| | - Shunsuke Uno
- Department of Infectious Diseases, Keio University School of Medicine
| | - Sho Uchida
- Department of Infectious Diseases, Keio University School of Medicine
| | - Ho Namkoong
- Department of Infectious Diseases, Keio University School of Medicine
| | - Yoshifumi Uwamino
- Department of Infectious Diseases, Keio University School of Medicine
| | - Yaoko Takano
- Department of Infectious Diseases, Keio University School of Medicine
| | - Naoki Hasegawa
- Department of Infectious Diseases, Keio University School of Medicine
| | | |
Collapse
|
2
|
Akahane M, Enoki Y, Saiki R, Hayashi Y, Hiraoka K, Honma K, Itagaki M, Gotoda M, Shinoda K, Hanyu S, Hamamura Y, Miyajima T, Ito C, Taguchi K, Uno S, Uwamino Y, Iketani O, Hasegawa N, Matsumoto K. Stability of antimicrobial agents in an elastomeric infusion pump used for outpatient parenteral antimicrobial therapy. Int J Infect Dis 2020; 103:464-468. [PMID: 33246042 DOI: 10.1016/j.ijid.2020.11.176] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/11/2020] [Accepted: 11/18/2020] [Indexed: 10/22/2022] Open
Abstract
OBJECTIVES The long-term stability of antimicrobials dissolved in infusion solution is necessary to establish and spread the outpatient parenteral antimicrobial therapy (OPAT). In this study, we evaluated the stability of antimicrobial agents dissolved in infusion solutions. METHODS The antimicrobial agents were dissolved in infusion solutions and kept at 25 °C and 31.1 °C for 24 h or 4 °C for 10 days in a polypropylene tube or an elastomeric infusion pump. The stability was measured by high-performance liquid chromatography. RESULTS AND CONCLUSION The residual ratio of cefazolin (CEZ), cefmetazole (CMZ), piperacillin (PIPC), and tazobactam (TAZ) at 31.1 °C for 24 h was as follows: 95.7 ± 3.0%, 94.8 ± 0.9%, 102.6 ± 1.8%, and 103.9 ± 3.6% in saline, respectively; 94.7 ± 3.0%, 94.3 ± 1.5%, 106.1 ± 3.0%, and 107.3 ± 2.4% in 5% dextrose solution, respectively. The residual ratio of these antimicrobials at 4 °C for 10 days was maintained above 90% in both saline and 5% dextrose solution. The residual ratio of all the above antimicrobials in an elastomeric infusion pump at 31.1 °C for 24 h was equivalent to that in the polypropylene tube. On the other hand, doripenem and meropenem were not stable in any infusion solution at 31.1 °C. CEZ, CMZ, and PIPC/TAZ dissolved in saline or 5% dextrose solution can be used in OPAT with continuous infusion pumps.
Collapse
Affiliation(s)
- Mutsumi Akahane
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan.
| | - Yuki Enoki
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan.
| | - Reika Saiki
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan.
| | - Yukitaka Hayashi
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan.
| | - Kana Hiraoka
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan.
| | - Kyoka Honma
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan.
| | - Marina Itagaki
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan.
| | - Mai Gotoda
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan.
| | - Kozue Shinoda
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan.
| | - Satomi Hanyu
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan.
| | - Yuna Hamamura
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan.
| | - Taichi Miyajima
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan.
| | - Chihiro Ito
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan.
| | - Kazuaki Taguchi
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan.
| | - Shunsuke Uno
- Deprtment of Infectious Diseases, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - Yoshifumi Uwamino
- Deprtment of Infectious Diseases, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - Osamu Iketani
- Deprtment of Infectious Diseases, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - Naoki Hasegawa
- Deprtment of Infectious Diseases, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - Kazuaki Matsumoto
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan.
| |
Collapse
|
3
|
Purwadi MD, Tsuji M, Narita M, Itagaki M. A Hierarchical Domain Decomposition Boundary Element Method Applied to the Multiregion Problems of Neutron Diffusion Equations. NUCL SCI ENG 2017. [DOI: 10.13182/nse98-a1966] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Dhandhang Purwadi
- Hokkaido University, Faculty of Engineering, Department of Quantum Energy Engineering Kita 13, Nishi 8, Kita-ku, Sapporo 060-0813, Japan
| | - M. Tsuji
- Hokkaido University, Faculty of Engineering, Department of Quantum Energy Engineering Kita 13, Nishi 8, Kita-ku, Sapporo 060-0813, Japan
| | - M. Narita
- Hokkaido University, Faculty of Engineering, Department of Quantum Energy Engineering Kita 13, Nishi 8, Kita-ku, Sapporo 060-0813, Japan
| | - M. Itagaki
- Hokkaido University, Faculty of Engineering, Department of Quantum Energy Engineering Kita 13, Nishi 8, Kita-ku, Sapporo 060-0813, Japan
| |
Collapse
|
4
|
Takakura K, Kato T, Arihiro S, Miyazaki T, Arai Y, Nakao Y, Komoike N, Itagaki M, Odagi I, Hirohama K, Saruta M, Matsuoka M, Tajiri H. Selective ligation using a detachable snare for small-intestinal polyps in patients with Peutz-Jeghers syndrome. Endoscopy 2011; 43 Suppl 2 UCTN:E264-5. [PMID: 21837607 DOI: 10.1055/s-0030-1256528] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- K Takakura
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
5
|
Abe D, Kubota T, Morozumi T, Shimizu T, Nakasone N, Itagaki M, Yoshie H. Altered gene expression in leukocyte transendothelial migration and cell communication pathways in periodontitis-affected gingival tissues. J Periodontal Res 2011; 46:345-53. [PMID: 21382035 DOI: 10.1111/j.1600-0765.2011.01349.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
BACKGROUND AND OBJECTIVE Gene expression is related to the pathogenesis of periodontitis and plays a crucial role in local tissue destruction and disease susceptibility. The aims of the present study were to identify the expression of specific genes and biological pathways in periodontitis-affected gingival tissue using microarray and quantitative real-time RT-PCR analyses. MATERIAL AND METHODS Healthy and periodontitis-affected gingival tissues were taken from three patients with severe chronic periodontitis. Total RNAs from six gingival tissue samples were used for microarray analyses. Data-mining analyses, such as comparisons, gene ontology and pathway analyses, were performed and biological pathways with a significant role in periodontitis were identified. In addition, quantitative real-time RT-PCR analysis was performed on samples obtained from 14 patients with chronic periodontitis and from 14 healthy individuals in order to confirm the results of the pathway analysis. RESULTS Comparison analyses found 15 up-regulated and 13 down-regulated genes (all of which showed a change of more than twofold in expression levels) in periodontitis-affected gingival tissues. Pathway analysis identified 15 up-regulated biological pathways, including leukocyte transendothelial migration, and five down-regulated pathways, including cell communication. Quantitative real-time RT-PCR verified that five genes in the leukocyte transendothelial migration pathway were significantly up-regulated, and four genes in the cell communication pathway were significantly down-regulated, which was consistent with pathway analysis. CONCLUSION We identified up-regulated genes (ITGB-2, MMP-2, CXCL-12, CXCR-4 and Rac-2) and down-regulated genes (connexin, DSG-1, DSC-1 and nestin) in periodontitis-affected gingival tissues; these genes may be related to the stimulation of leukocyte transendothelial migration and to the the impairment of cell-to-cell communication in periodontitis.
Collapse
Affiliation(s)
- D Abe
- Division of Periodontology, Department of Oral Biological Science, Niigata University Graduate School of Medical and Dental Sciences, Japan
| | | | | | | | | | | | | |
Collapse
|
6
|
|
7
|
Ogino M, Kido J, Bando M, Hayashi N, Wada C, Nagata T, Nishimura F, Soga Y, Takashiba S, Kubota T, Itagaki M, Shimada Y, Tai H, Yoshie H, Yamazaki N, Shinohara Y, Kataoka M. Alpha 2 integrin +807 polymorphism in drug-induced gingival overgrowth. J Dent Res 2006; 84:1183-6. [PMID: 16304451 DOI: 10.1177/154405910508401217] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Alpha2 integrin on fibroblasts is reported to play an important role in the induction of drug-induced gingival overgrowth, which is characterized by excessive accumulation of type I collagen in gingival connective tissue. Silent polymorphism 807 T/C within the alpha2 integrin gene is associated with high/low alpha2 integrin expression. The aim of this study was to test the hypothesis that expression of alpha2 integrin 807 T/C polymorphism correlates with drug-induced gingival overgrowth. A case-control study comparing 136 subjects taking calcium channel blockers (72 with vs. 64 without drug-induced gingival overgrowth) demonstrated that the frequency of the +807 C allele was significantly higher in the case group than in the controls (odds ratio, 3.61; 95% confidence interval, 2.14 - 6.10; P < 0.05). The present findings suggest that the alpha2 +807 C allele is one of the genetic risk factors for drug-induced gingival overgrowth.
Collapse
Affiliation(s)
- M Ogino
- Divison of Gene Expression, Institute for Genome Research, The University of Tokushima, Kuramoto 3-18-15, Tokushima 770-8503, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Tang WR, Shioya N, Eguchi T, Ebata T, Matsui J, Takenouchi H, Honma D, Yasue H, Takagaki Y, Enosawa S, Itagaki M, Taguchi T, Kiyokawa N, Amemiya H, Fujimoto J. Characterization of new monoclonal antibodies against porcine lymphocytes: molecular characterization of clone 7G3, an antibody reactive with the constant region of the T-cell receptor δ-chains. Vet Immunol Immunopathol 2005; 103:113-27. [PMID: 15626467 DOI: 10.1016/j.vetimm.2004.08.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2003] [Revised: 07/09/2004] [Accepted: 08/26/2004] [Indexed: 11/25/2022]
Abstract
A battery of mouse monoclonal antibodies (mAbs) reactive with porcine peripheral blood (PB) leukocytes was generated. Among the mAbs, 6F10 was found to react probably with cluster of differentiation (CD)8 alpha-chain, while 7G3 and 3E12 were found to recognize gammadelta T-cells, as revealed by two-color flow cytometric and immunoprecipitation studies. 7G3 was shown to react with the constant (C) region of the T-cell receptor (TCR) delta-chain by the following facts: (1) 7G3 immunoprecipitated full-length TCR delta-chain protein fused with glutathione S-transferase (GST) produced by Esherichia coli and (2) 7G3 reacted with TCR delta-chain expressing Cos-7 cells transfected with either full-length or N-terminal deleted mutant cDNA, but did not react with Cos-7 cells transfected with C-terminal deleted mutant TCR delta-chain cDNA. All three mAbs produced high-quality immunostaining results on frozen sections, revealing a distinct distribution of gammadelta T-cells and CD8(+) cells. This report precisely characterizes mAbs against porcine TCR for the first time, facilitating molecular biological investigations of the porcine immune system.
Collapse
MESH Headings
- Amino Acid Sequence
- Animals
- Antibodies, Monoclonal/immunology
- Flow Cytometry
- Immunohistochemistry
- Immunoprecipitation
- Lymphocytes/immunology
- Molecular Sequence Data
- Receptors, Antigen, T-Cell, gamma-delta/analysis
- Receptors, Antigen, T-Cell, gamma-delta/genetics
- Receptors, Antigen, T-Cell, gamma-delta/immunology
- Swine/immunology
Collapse
Affiliation(s)
- W-R Tang
- Department of Developmental Biology, National Research Institute for Child Health and Development, 3-35-31 Taishido, Setagaya-ku, Tokyo 154-8567, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
9
|
Watanabe K, Tanaka T, Iburaim A, Itagaki M. Effects of masking agents on the separation of copper(II) from iron(III) by continuous solvent extraction with 8-hydroxyquinoline. ANAL SCI 2001; 17:671-4. [PMID: 11708153 DOI: 10.2116/analsci.17.671] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- K Watanabe
- Department of Industrial Chemistry, Faculty of Science and Technology, Science University of Tokyo, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | | | | | | |
Collapse
|
10
|
Sato N, Kiyokawa N, Takada K, Itagaki M, Saito M, Sekino T, Suzuki T, Taguchi T, Mimori K, Lanza F, Fujimoto J. Characterization of monoclonal antibodies against mouse and rat platelet glycoprotein V (CD42d). Hybridoma (Larchmt) 2000; 19:455-61. [PMID: 11152397 DOI: 10.1089/027245700750053940] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The mouse- and rat-platelet-specific hamster monoclonal antibody (MAb) 1C2, previously found to react with a thrombin-sensitive 74-kD glycoprotein, was now shown to recognize platelet glycoprotein V (GPV, CD42d). 1C2 reacted with NIH-3T3 cells in which recombinant mouse or rat GPV was expressed. Both 1C2 and 4A5, another mouse-platelet-specific rat MAb, immunoprecipitated GVP, although they recognized different epitopes. Side-by-side comparison confirmed that 1C2 as well as RPM.9, a MAb against rat GPV, recognized the same rat platelet molecule. In a mouse bone marrow culture, 1C2+ megakaryocytes emerged from CD41 (GPIIb)+1C2- megakaryocytes. Because 1C2+ megakaryocytes exhibited higher DNA ploidy distribution than CD41+ cells, GPV likely appears in the late stage of megakaryocyte maturation. This study established 1C2 as a MAb against mouse and rat GPV, namely CD42d, and as useful tool to study rodent megakaryopoiesis.
Collapse
Affiliation(s)
- N Sato
- Department of Pathology, National Children's Medical Research Center, Tokyo, Japan
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Sato N, Kiyokawa N, Taguchi T, Suzuki T, Sekino T, Ohmi K, Itagaki M, Sato T, Lepage A, Lanza F, Fujimoto J. Functional conservation of platelet glycoprotein V promoter between mouse and human megakaryocytes. Exp Hematol 2000; 28:802-14. [PMID: 10907642 DOI: 10.1016/s0301-472x(00)00176-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE In an attempt to clarify the megakaryo-specific regulatory mechanism of GPV gene transcription, we characterized the 5'-flanking region of the mouse GPV gene. MATERIALS AND METHODS The promotor activity of a -481/+22 5'-fragment of the mouse GPV gene was examined in normal mouse bone marrow cells (BMC) and various human cell lines using two distinct reporter gene assay systems, luciferase and green fluorescence protein (GFP). RESULTS When a DNA construct consisting of this fragment and a GFP reporter gene were transiently expressed in thrombopoietin-supported mouse BMC culture, GFP was identified only in megakaryocytes. The same construct expressed high levels of GFP in the human megakaryocytic Dami line. When assessed by dual luciferase assay, the full -481/+22 fragment could drive variable promoter activity in human as well as mouse megakaryocytic lines but did not work in non-megakaryocytic cells. Sufficient transcriptional activation of this fragment was restricted to the cells expressing apparent GPV mRNA. A deletion and point mutation study indicated that GATA and Ets motifs, typical cis-acting elements for platelet-specific genes, located of -75 and -46, respectively, were essential for promoter function. CONCLUSION The GPV promoter has the general characteristics found in platelet-specific genes, and the mechanism for megakaryocyte-specific, maturation-dependent regulation of GPV gene transcription is highly conserved between mouse and human. Analysis of GPV transcription mechanism utilizing human lines as well as BMC should provide new information on the final maturational process of megakaryocytes.
Collapse
Affiliation(s)
- N Sato
- Department of Pathology, National Children's Medical Research Center, Tokyo, Japan
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
|
13
|
Itagaki M, Amami K, Tomura Y, Yuhaku S, Ishimaru Y, Bessho Y, Eda K, Ishida T. Packaging properties of ALIVH-CSP using SBB flip-chip bonding technology. ACTA ACUST UNITED AC 1999. [DOI: 10.1109/6040.784487] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
14
|
Itagaki M. Application of a wall jet disk electrode combined with an electrochemical quartz crystal microbalance to the study of the dissolution of copper in acidic chloride media. J Electroanal Chem (Lausanne) 1997. [DOI: 10.1016/s0022-0728(97)00057-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
15
|
Itagaki M, Tagaki M, Watanabe K. Application of a wall jet disk electrode combined with an electrochemical quartz crystal microbalance to the study of the dissolution of copper in acidic chloride media. J Electroanal Chem (Lausanne) 1997. [DOI: 10.1016/s0022-0728(97)80049-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
16
|
|
17
|
Katoh T, Sakai J, Itagaki M, Watanabe E, Watanabe D, Ogata Y. The fractional inhibitory concentration index of antimicrobial agents for bacteria and Mycoplasma isolated from the nasal swabs of cattle with respiratory diseases. J Vet Med Sci 1996; 58:781-2. [PMID: 8877979 DOI: 10.1292/jvms.58.781] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
We investigated the effect of thiamphenicol plus lincomycin (TP + LCM) and thiamphenicol plus tylosin (TP + TS) combinations using checker board method on the growth of Pasteurella (P.) multocida, P. haemolytica and Mycoplasma (M.) bovis by calculating the fractional inhibitory concentration index (FIC index). The results showed that the FIC indexes of the TP + LCM combination for P. multocida, P. haemolytica and M. bovis were 0.36 +/- 0.10, 0.72 +/- 0.09 and 0.81 +/- 0.18, respectively. The FIC indexes of the TP + TS combination for P. multocida, P. haemolytica, and M. bovis were 0.79 +/- 0.20, 0.66 +/- 0.11 and 0.32 +/- 0.14, respectively. Thus, these combinations are assumed to have a more synergistic or additive effect on bacteria growth than a single antimicrobial agent.
Collapse
Affiliation(s)
- T Katoh
- Veterinary Clinical Training Center, Yamagata Prefectural Federation of Agricultural Mutual Aid Associations, Japan
| | | | | | | | | | | |
Collapse
|
18
|
Abstract
To characterize intracellular Ca2+ stores, the Ca(2+)-releasing effects of caffeine, carbachol and inositol 1,4,5-trisphosphate (IP3) were compared by measuring the drug-induced tension development in beta-escin-skinned longitudinal smooth muscle of guinea-pig ileum. Caffeine (20 mM), carbachol (10 or 100 microM) or IP3 (40 microM), applied after loading Ca2+ within intracellular stores, produced a transient rise in tension in a Ca(2+)-free solution. This change in tension occurred in response to release of Ca2+ from the stores. The effect of either caffeine or carbachol was markedly reduced or abolished after preceding application of the other drug. IP3 was without effect when applied subsequently to caffeine. The effects of carbachol and IP3 were abolished after combined treatment with ryanodine (30 microM) and caffeine (20 mM) which causes functional removal of caffeine-releasable Ca2+ stores, but not after combined treatment with ryanodine (30 microM) and carbachol (10 microM). The results suggest that caffeine, carbachol and IP3 all act on common Ca2+ stores to release Ca2+.
Collapse
Affiliation(s)
- S Komori
- Department of Veterinary Science, Faculty of Agriculture, Gifu University, Japan
| | | | | | | |
Collapse
|
19
|
Itagaki M, Komori S, Unno T, Syuto B, Ohashi H. Possible involvement of a small G-protein sensitive to exoenzyme C3 of Clostridium botulinum in the regulation of myofilament Ca2+ sensitivity in beta-escin skinned smooth muscle of guinea pig ileum. Jpn J Pharmacol 1995; 67:1-7. [PMID: 7745839 DOI: 10.1254/jjp.67.1] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The effects of exoenzyme C3 of Clostridium botulinum on Ca(2+)- and drug-induced tension developments were investigated in beta-escin skinned smooth muscle of guinea pig ileum to test the involvement of a small G-protein in the regulation of myofilament Ca2+ sensitivity. C3 is known to ADP-ribosylate the rho p21 family of small G-proteins. Treatment with C3 (0.35 microgram/ml, for 30 min) shifted the pCa-tension curve rightward along the Ca2+ concentration axis, indicating a decrease in Ca2+ sensitivity of the contractile elements. The inhibitory effect of C3 was not preserved after treatment with GDP beta S (1 mM), an antagonist of GTP for the binding to G-proteins. Stimulation of muscarinic receptors with carbachol (CCh, 100 microM) shifted the pCa-tension curve leftward, indicating Ca2+ sensitization of tension development. The Ca(2+)-sensitizing effect of CCh was not observed after C3 treatment. When GTP gamma S (10 microM), an activator of G-proteins, was applied at a plateau of tension development produced by a moderate concentration of Ca2+, further increase in tension was elicited and the effect of GTP gamma S was inhibited by C3 treatment. The results suggest the possible involvement of a rho p21-like small G-protein in the regulation of Ca2+ sensitivity of smooth muscle myofilaments.
Collapse
Affiliation(s)
- M Itagaki
- Department of Veterinary Science, Faculty of Agriculture, Gifu University, Japan
| | | | | | | | | |
Collapse
|
20
|
Nagasaki M, Itagaki M, Komori S, Ohashi H. Effect of trimebutine on contractile responses in skinned ileal smooth muscle. Jpn J Pharmacol 1994; 65:249-55. [PMID: 7799525 DOI: 10.1254/jjp.65.249] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The effects of trimebutine on Ca2+ release and modulation of Ca2+ sensitivity of contractile elements induced by carbachol (CCh) were investigated using a tension measuring method in beta-escin-treated skinned smooth muscle of the longitudinal muscle layer of guinea pig ileum. Trimebutine (10-100 microM) concentration-dependently inhibited tension development brought about by Ca2+ release from intracellular stores induced by CCh (10 microM), but did not affect those induced by inositol 1,4,5-trisphosphate (IP3, 25 microM) or caffeine (5 mM). The inhibitory effect was reversible. Trimebutine (100 microM) neither altered the Ca2+ sensitivity of the contractile elements nor affected the effects of GTP gamma S (50 microM) and CCh (100 microM) in potentiating Ca2+ sensitivity of the contractile elements after the Ca2+ storage function had been eliminated by A23187. These results suggest that trimebutine inhibits CCh-induced Ca2+ release by acting at some point during the coupling of muscarinic receptors through a G-protein to phospholipase C and thus reducing the accumulation of IP3.
Collapse
Affiliation(s)
- M Nagasaki
- Pharmacological Research Laboratory, Tanabe Seiyaku Co., Ltd., Saitama, Japan
| | | | | | | |
Collapse
|
21
|
Fukami K, Itagaki M, Komori S, Ohashi H. Contractile responses to histamine and GTP gamma S in beta-escin-treated skinned smooth muscle of guinea pig ileum. Jpn J Pharmacol 1993; 63:171-9. [PMID: 8283827 DOI: 10.1254/jjp.63.171] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
To characterize the calcium (Ca2+)-releasing effects of histamine and GTP gamma S, the drug-induced tension developments were measured in beta-escin-treated skinned longitudinal smooth muscle of guinea pig ileum. Intracellular Ca2+ stores were loaded with Ca2+ by incubating the muscle for 10 min in a Ca(2+)-containing solution. Histamine (10-100 microM), applied after Ca(2+)-loading, produced a transient rise in tension. The effect of histamine was not preserved after treatment with 20 mM caffeine, a Ca(2+)-store releaser. The effect of histamine was potentiated by GTP; inhibited by GDP beta S, an antagonist of GTP for binding to G-proteins; or heparin, an antagonist of inositol 1,4,5-trisphosphate (IP3) for binding to its receptor; and mimicked by IP3. When GTP gamma S (20 microM) was applied and continued to be present for 15 min, a transient rise in tension followed by a small, sustained rise in tension was elicited. The effect of GTP gamma S was completely inhibited by GDP beta S. The initial, transient component of the biphasic GTP gamma S response was abolished or markedly inhibited after treatment with caffeine, heparin or the calcium ionophore A23187. The present results suggest that histamine and GTP gamma S cause a release of Ca2+ from caffeine-sensitive stores which is mediated by IP3 formed through a G-protein-coupled mechanism. The GTP gamma S-induced Ca2+ release is not considered to involve such an IP3-independent process as described in chemically-skinned arterial muscle.
Collapse
Affiliation(s)
- K Fukami
- Department of Veterinary Science, Faculty of Agriculture, Gifu University, Japan
| | | | | | | |
Collapse
|
22
|
Watanabe M, Imamura M, Abe I, Itagaki M, Takahashi H. [A case of multiple peripheral pulmonary carcinoids showing a diffuse lung disease synchronously associated with sigmoid colon cancer]. Gan No Rinsho 1990; 36:2580-6. [PMID: 2266591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Reported is a rare case of a multiple peripheral pulmonary carcinoids showing a diffuse lung disease synchronously associated with a sigmoid colon cancer. An abnormal chest shadow was detected in a 75-year-old male by X ray during a periodic health examination. After admission to hospital for a more thorough examination he was found to have a sigmoid colon cancer. A CT scan of his chest suggested sarcoidosis, but the results of a bronchofiberscopic examination appeared normal. Subsequently, a TBLB specimen revealed typical carcinoid tumors. Thus, the diagnosis of diffuse multiple peripheral carcinoids was made. A surgical resection of the sigmoid colon cancer was performed successfully, but five months later, the patient died of acute pneumonia. An autopsy was not permitted. Also discussed are multiple pulmonary carcinoids and a double cancer.
Collapse
Affiliation(s)
- M Watanabe
- Dept. of Int. Med., Kuriyama Red Cross Hospital
| | | | | | | | | |
Collapse
|
23
|
Takeda Y, Itagaki M, Ishibashi K. Hypoplastic-hypocalcified enamel of teeth and dysplastic nails: an undescribed ectodermal dysplasia syndrome. Int J Oral Maxillofac Surg 1989; 18:73-5. [PMID: 2501410 DOI: 10.1016/s0901-5027(89)80132-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Hypoplastic-hypocalcified enamel of all permanent teeth and dysplasia of finger- and toe-nails were found in a 17-year-old Japanese male. Physical examination revealed no remarkable changes in skin, hair, sweat glands, bones, etc. Family history revealed the same abnormalities of teeth and nails in his mother's brother. A review of the literature concerning ectodermal dysplasia syndromes failed to reveal a combination of hypoplastic-hypocalcified enamel and dysplastic nails without changes in any other ectodermal tissues.
Collapse
Affiliation(s)
- Y Takeda
- Department of Oral Pathology, School of Dentistry, Iwate Medical University, Japan
| | | | | |
Collapse
|
24
|
Takeda Y, Suzuki A, Kuroda M, Itagaki M, Shimono M. Pigmented ameloblastic fibro-odontoma: detection of melanin pigment in enamel. Bull Tokyo Dent Coll 1988; 29:119-23. [PMID: 3253017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
25
|
Abstract
A case of osseous hyperplasia under the pontics of fixed partial dentures in right and left mandibular first molar regions is presented. Radiographs showed hemispherical radio-opacities on the alveolar ridges. Histologic examination revealed the lesions were composed of a dense mass of mature bone with well-developed lamellae and haversian systems, viable osteocytes in lacunae and a few marrow spaces filled with loose fibrous connective tissue. The review of the literature showed osseous hyperplasia under the pontic of a fixed partial denture has been seen only in the mandibular molar or premolar regions, but no conclusion about its etiology was made.
Collapse
Affiliation(s)
- Y Takeda
- Department of Oral Pathology, School of Dentistry, Iwate Medical University, Japan
| | | | | |
Collapse
|
26
|
Itagaki M. [Simultaneous studies of lingual articulation, mandibular movement and nature of speech sounds in mandibular prognathism: comparison between the long face-open bite group and the short face-open bite group]. Nihon Kyosei Shika Gakkai Zasshi 1986; 45:237-49. [PMID: 3462272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
27
|
Uemura H, Komatsu M, Itagaki M, Fukui Y. [Analysis of cell surface properties by flow-cytometry in malignant lymphoma]. Gan To Kagaku Ryoho 1985; 12:385-7. [PMID: 3970559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
28
|
Itagaki M, PIERINI G. Comment on“Analytic Solution Technique for Solving One-Group Diffusion Equations for Core Simulations”. J NUCL SCI TECHNOL 1984. [DOI: 10.1080/18811248.1984.9731015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
29
|
Seshima M, Itagaki M, Sugawara J, Kawamura H, Itoh H. [The relation between oral cavity shape and lingual articulation in skeletal Class III cases before and after orthognathic surgery. Observation by electro-palatogram]. Nihon Kyosei Shika Gakkai Zasshi 1983; 42:273-87. [PMID: 6580353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
30
|
Ando Y, Itagaki M, Kubota M. [Traumatic root fractures--2 case reports of midroot fracture]. Shikai Tenbo 1983; 61:1325-33. [PMID: 6577621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
31
|
Kamimura N, Fukuiya Y, Komatsu M, Itagaki M. [Application of the peripheral leukocyte cytofluorogram to diagnosis and treatment of hematopoietic tumors--with special reference to its effectiveness in malignant lymphoma]. Gan To Kagaku Ryoho 1982; 9:1285-92. [PMID: 6964048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
In 1970 Adams and Kamentsky reported on a technique for classifying human peripheral leukocytes into three groups-lymphocytes, monocytes and granulocytes using supravital staining with a solution of acridine orange, and analyzing the resulting cell suspension with the Cytofluorogram. For the purpose of clinical application of flowcytometry, we investigated the clinical significance of this cytofluorogram of peripheral leukocytes. Cytofluorograms showed characteristic pattern in such hematopoietic malignancies as acute leukemias, chronic leukemias and malignant lymphomas, and turned out to be applicable to the diagnosis of these diseases. Especially in malignant lymphoma, cytofluorogram showed either normal or abnormal pattern. An abnormal cytofluorogram indicated poor prognosis, and an abnormal pattern of cytofluorogram became normalized after chemotherapy against lymphoma. Interestingly, those patients who showed in abnormal pattern relapsed in a short period, even when they were though diagnosed in remission. These data suggest that cytofluorograms are useful in diagnosing, predicting relapse and evaluating therapeutic effects for the treatment of malignant lymphoma. We hope that the analysis of cytofluorogram of peripheral leukocytes in lymphoma will provide a new benefit for further investigation of this disease.
Collapse
|
32
|
Itagaki M, Teshima T, Okabe H, Maeda H. [A case of solitary myeloma of the mandible]. Nihon Koku Geka Gakkai Zasshi 1976; 22:695-701. [PMID: 1088439 DOI: 10.5794/jjoms.22.695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
33
|
Sasaki S, Kikuchi A, Tokoro H, Sato T, Itagaki M. [Bedside nursing. Bedside rehabilitation nursing of a patient with cerebral embolism]. Kangogaku Zasshi 1974; 38:535-8. [PMID: 4211313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
34
|
Yamada N, Yoshioka H, Nambu H, Itagaki M. [Therapeutic results of demethylchlortetracycline (Ledermycin) dry syrup administration in acute infections in children]. Jpn J Antibiot 1969; 22:203-5. [PMID: 4980481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
35
|
Nambu H, Itagaki M, Shibaki H, Yoshioka H. [Application of a new synthetic penicillin, hetacillin in pediatric field]. Jpn J Antibiot 1968; 21:111-4. [PMID: 5303489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
36
|
Yoshioka H, Mori H, Itagaki M, Shibaki H, Nanbu H. [A new penicillin, dicloxacillin]. J Antibiot B 1967; 20:34-6. [PMID: 5298992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
37
|
Yoshioka H, Itagaki M, Shibaki H. [On oral administration of aminobenzyl penicillin in pediatrics]. J Antibiot B 1966; 19:288-96. [PMID: 5298187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
38
|
Nakazawa S, Itagaki M, Yokota T, Otani Y, Miwa M. [Basic studies on the antibiotic action of lysozyme]. J Antibiot B 1966; 19:34-47. [PMID: 5298050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
39
|
Nakazawa S, Itagaki M, Yokota Y, Emoto E, Amano M. [Basic study on synthetic cephalosporin C--cephalothin, cephaloridine]. J Antibiot B 1965; 18:431-8. [PMID: 5329714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
40
|
|
41
|
Itagaki M. ON THE ACTION OF VARIOUS EXTRACTS OBTAINED FROM THE COW'S OVARIES UPON THE MUSCULAR TISSUE OF THE UTERUS, INTESTINE, AND BLOOD-VESSELS. ACTA ACUST UNITED AC 1917. [DOI: 10.1113/expphysiol.1917.sp000234] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
42
|
|