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Makiyama A, Oki E, Miyamoto Y, Kotaka M, Kawanaka H, Miwa K, Kabashima A, Noguchi T, Yuge K, Kashiwada T, Shimokawa M, Saeki H, Akagi Y, Baba H, Mori M. Bevacizumab plus trifluridine/tipiracil in elderly patients with previously untreated metastatic colorectal cancer (KSCC 1602): A single-arm, phase II study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz246.097] [Citation(s) in RCA: 1] [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: 11/13/2022] Open
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Adachi M, Takahashi K, Yuge K, Nishikawa M, Miki H, Uyama M. Treatment with Bifemelane for Optic Nerve Damage following High Intraocular Pressure in Rat Eyes. Eur J Ophthalmol 2018; 6:415-20. [PMID: 8997585 DOI: 10.1177/112067219600600413] [Citation(s) in RCA: 1] [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] [Indexed: 11/16/2022]
Abstract
This study found that pretreatment with 4-(o-benzylphenoxy)-N- methylbuty-lamine hydrochloride (bifemelane hydrochloride, Celeport) reduced ischemia-reperfusion injury in rat eyes. Bifemelane (25 mg/kg) was injected intraperitoneally 30 minutes before an ischemic insult, then acute ischemia of the retina and optic disc was induced by increasing intraocular pressure to 110 mmHg for 45 minutes. After one week, the axonal count of the optic nerve was investigated using electron microscopy. The control group consisted of vehicle-treated eyes which received normal saline. The axon count was 93.4 +/- 7.9 for the bifemelane treated group, and 79.2 +/- 6.4 for the controls. The axon count in the treated group was significantly higher. These results suggest that bifemelane, which prevents cerebral nerve cell damage from ischemia, can reduce ischemic retinal nerve cell injury.
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Affiliation(s)
- M Adachi
- Department of Ophthalmology, Kansai Medical University, Osaka, Japan
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Orimoto K, Matsuishi T, Yuge K. An atypical form of RETT syndrome (RTT) patient exhibited dystonia and characteristic psychological/behavioral dysfunctions. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3505] [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: 10/18/2022]
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Kodama K, Yuge K, Masuda Y, Tanimoto Y. Development of Micro Cellular Open Cell Rigid Polyurethane Foams. J CELL PLAST 2016. [DOI: 10.1177/0021955x9302900523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
| | - K. Yuge
- Takeda Chemical Industries Ltd
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Abstract
With the increasing concern over the threat of ozone depletion and global warming, the rigid polyurethane foam insulation industry is facing a majorchallenge of selecting alternatives for chlorofluorocarbons (CFCs). Under the present situation, however, the effective means of solving this problem haven't been taken yet. Moreover, with more concern with the saving of energy worldwide, there is hope of insulators with higher performance. This paper reports on a micro cellular open cell polyurethane foam, which is very effective as a core material for evacuated insulators. In addition, thermal insulation panels with high performance are developed by utilizing the open cell foam as a core material. The evacuated insulators, so-called "vacuum insulation panels," have an insulation effectiveness four times better than those of the conventional rigid polyurethane and polyisocyanurate foams (thermal conductivity is 0.005 W/mK)and are also very lightweight compared to those made of inorganic substances such as silica powder. The vacuum insulation panels were manufactured by packing the core material and absorbents in a film-like laminated plastic container, which is suitable for holding a vacuum, followed by sealing in the industrial vacuum level (0.01—0.1 mm Hg). We have developed the micro cellular (100—200,μm) and 100% open cell foam by selecting polyol compositions, modified polyisocyanates, surfactants and cell opening additives. The micro cellular open cell foam has excellent physical properties such as heat resistance, compressive strength and low shrinkage as well as non-scorch at the stage of slabstock foaming. These properties will be very important for manufacturing the vacuum insulation panels. The open cell foams were blown by using the most conventional and alternative blowing agents in rigid foam systems. In the near future, we hope that this open cell foam technology will contribute to the development of environmentally friendly and high performance products in the insulation industry.
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Affiliation(s)
- K. Kodama
- Takeda Chemical Industries Ltd., 2-17-85 Juso-Honmachi, Yodogawa-ku, Osaka 532, Japan
| | - K. Yuge
- Takeda Chemical Industries Ltd., 2-17-85 Juso-Honmachi, Yodogawa-ku, Osaka 532, Japan
| | - Y. Masuda
- Takeda Chemical Industries Ltd., 2-17-85 Juso-Honmachi, Yodogawa-ku, Osaka 532, Japan
| | - Y. Tanimoto
- Matsushita Refrigeration Co., 3-22, Takaida-Hondori, Higashiosaka-city, Osaka 577, Japan
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Yuge K, Miyajima A, Jinzaki M, Kaneko G, Hagiwara M, Hasegawa M, Takeda T, Kikuchi E, Nakagawa K, Oya M. How does visceral obesity affect surgical performance in laparoscopic radical nephrectomy? Jpn J Clin Oncol 2015; 45:373-377. [DOI: 10.1093/jjco/hyv001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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Kaneko G, Miyajima A, Yuge K, Yazawa S, Mizuno R, Kikuchi E, Jinzaki M, Oya M. Visceral obesity is associated with better recurrence-free survival after curative surgery for Japanese patients with localized clear cell renal cell carcinoma. Jpn J Clin Oncol 2015; 45:210-216. [DOI: 10.1093/jjco/hyu193] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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Yuge K, Kikuchi E, Matsumoto K, Takeda T, Miyajima A, Oya M. Could Patient Age Influence Tumor Recurrence Rate in Non-muscle-invasive Bladder Cancer Patients Treated with BCG Immunotherapy? Jpn J Clin Oncol 2011; 41:565-70. [DOI: 10.1093/jjco/hyq241] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Singh DP, Ohguro N, Kikuchi T, Sueno T, Reddy VN, Yuge K, Chylack LT, Shinohara T. Lens epithelium-derived growth factor: effects on growth and survival of lens epithelial cells, keratinocytes, and fibroblasts. Biochem Biophys Res Commun 2000; 267:373-81. [PMID: 10623627 DOI: 10.1006/bbrc.1999.1979] [Citation(s) in RCA: 108] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We isolated a clone encoding a protein from a human lens epithelial cell (LEC) cDNA library with antibody (Ab) from a cataract patient and named it "lens epithelium-derived growth factor" (LEDGF). LEDGF is found to be identical to p75, a coactivator of both transcription (1) and pre-mRNA splicing (2). In serum-free medium LEDGF stimulated growth of LECs, cos7 cells, skin fibroblasts, and keratinocytes, and prolonged cell survival. Without LEDGF, the aforementioned cells did not survive. Also in serum-free medium, Ab to LEDGF neutralizing LEDGF blocked cell growth and caused cell death. Thus, LEDGF, a regulatory factor, may play an important role for growth and survival of a wide range of cell types.
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Affiliation(s)
- D P Singh
- Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, 02115, USA
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Suzuki R, Sakamoto H, Yasukawa H, Masuhara M, Wakioka T, Sasaki A, Yuge K, Komiya S, Inoue A, Yoshimura A. CIS3 and JAB have different regulatory roles in interleukin-6 mediated differentiation and STAT3 activation in M1 leukemia cells. Oncogene 1998; 17:2271-8. [PMID: 9811457 DOI: 10.1038/sj.onc.1202143] [Citation(s) in RCA: 73] [Impact Index Per Article: 2.8] [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: 11/09/2022]
Abstract
We have reported JAK-signaling modulators, CIS1 (cytokine-inducible SH2 protein-1), CIS3 and JAB (JAK2 binding protein), which are structurally related. In M1 myeloid leukemia cells, CIS3 was induced by neither interleukin 6 (IL6) nor interferon gamma (IFNgamma), while JAB was induced strongly by IFNgamma and slightly by IL6 and leukemia inhibitory factor (ILF). Forced expression of CIS3 and JAB in M1 cells prevented IL6- or LIF-induced growth arrest and differentiation, even when their expression levels were comparable to endogenous ones in several cell lines such as HEL, UT-7, IFNgamma-treated M1, and CTLL2 cells. Pretreatment of parental M1 cells with IFNgamma but not IFNbeta resulted in suppression of LIF-induced STAT3 activation and differentiation, further supporting that physiological level of JAB is sufficient to inhibit LIF-signaling. However, unlike JAB, CIS3 did not inhibit IFNgamma-induced growth arrest, suggesting a difference in cytokine specificity between CIS3 and JAB. CIS3 inhibited STAT3 activation with slower kinetics than JAB and allowed rapid c-fos induction and partial FcgammaRI expression in response to IL6. In 293 cells, CIS3 as well as JAB bound to JAK2 tyrosine kinase domain (JH1), and inhibited its kinase activity, however, the effect of CIS3 on tyrosine kinase activity was weaker than that of JAB, indicating that CIS3 possesses lower affinity to JAK kinases than JAB. These findings suggest that CIS3 is a weaker inhibitor than JAB against JAK signaling, and JAB and CIS3 possess different regulatory roles in cytokine signaling.
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Affiliation(s)
- R Suzuki
- Institute of Life Science, Kurume University, Japan
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Sakamoto H, Yasukawa H, Masuhara M, Tanimura S, Sasaki A, Yuge K, Ohtsubo M, Ohtsuka A, Fujita T, Ohta T, Furukawa Y, Iwase S, Yamada H, Yoshimura A. A Janus kinase inhibitor, JAB, is an interferon-gamma-inducible gene and confers resistance to interferons. Blood 1998; 92:1668-76. [PMID: 9716595] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
It has been shown that interferons (IFNs) exert their signals through receptor-associated Janus kinases (JAKs) and signal transducers and activators of transcription (STATs). However, molecular mechanism of regulation of IFN signaling has not been fully understood. We have reported novel cytokine-inducible SH2 protein (CIS) and JAK binding protein (JAB) family genes that can potentially modulate cytokine signaling. Here we report that JAB is strongly induced by IFN-gamma but not by IFN-beta in mouse myeloid leukemia M1 cells and NIH-3T3 fibroblasts. NIH-3T3 cells ectopically expressing JAB but not CIS3 lost responsiveness to the antiviral effect of IFN-beta and IFN-gamma. M1 leukemic cells stably expressing JAB were also resistant to IFN-gamma and IFN-beta-induced growth arrest. In both NIH-3T3 and M1 transformants expressing JAB, IFN-gamma did not induce tyrosine phosphorylation and DNA binding activity of STAT1. Moreover, IFN-gamma-induced activation of JAK1 and JAK2 and IFN-beta-induced JAK1 and Tyk2 activation were inhibited in NIH-3T3 JAB transformants. These results suggest that JAB inhibits IFN signaling by blocking JAK activity. We also found that IFN-resistant clones derived from LoVo cells and Daudi cells expressed high levels of JAB without stimulation. In IFN-resistant Daudi cells, IFN-induced STAT1 and JAK phosphorylation was partially reduced. Therefore, overexpression of JAB could be, at least in part, a mechanism of IFN resistance.
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Affiliation(s)
- H Sakamoto
- Institute of Life Science, Kurume University, Aikawamachi, Kurume; the Department of Tumor Cell Biology, Tokyo Metropolitan Institute of Medical Science, Bunkyoku, Tokyo, Japan
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Zhou X, Kudo A, Kawakami H, Hirano H, FAYED M, MAKITA T, SUZAKI E, KATAOKA K, Katsumata O, Fujimoto K, Yamashina S, USUDA N, JOHKURA K, SUGANUMA T, SAWAGUCHI A, NAGAIKE R, KAWANO JI, OINUMA T, Izumi SI, Iwamoto M, Shin M, Nakano PK, Ueda T, Ishikawa Y, Kubo E, Miyoshi N, Fukuda M, Akagi Y, Miki H, Nakajima M, Yuge K, Taomoto M, Tsubura A, Shikata N, Senzaki H, MASUDA A, NAGAOKA T, OYAMADA M, TAKAMATSU T, Furuta H, Hata Y, Yokoyama K, Takamatsu T, Itoh J, Takumi I, Kawai K, Serizawa A, Sanno N, Teramoto A, Osamura R, MATSUTA M, MATSUTA M, I N, TAKAHASHI S, KAWABE K, LIEBER MM, JENKINS RB, SASANO HIRONOBU, IINO KAZUMI, SUZUKI TAKASHI, NAGURA HIROSHI, Ge YB, Ohmori J, Tsuyama S, Yang DH, Murata F, JOHKURA K, LIANG Y, MATSUI T, NAKAZAWA A, HIGUCHI S, MATSUSHITA Y, Naritaka H, Kameya T, Sato Y, Inoue H, Otani M, Kawase T, KUROOKA Y, NASU K, KAMEYAMA S, MORIYAMA N, YANO J, TSUJIMOTO G, Matsushita T, Oyamada M, YAMAMOTO H, MATSUURA J, NOMURA T, SASAKI J, NAWA T, KITAZAWA R, KITAZAWA S, KASIMOTO H, MAEDA S, WATANABE J, Mino K, KONDO K, KANAMURA S, Ueki T, Takeuchi T, Nishimatsu H, Kajiwara T, Moriyama N, Kawabe K, Tominaga T, Kobayashi KI, Minei S, Okada Y, Yamanaka Y, Ichinose T, Hachiya T, Hirano D, Ishida H, Okada K, HASEGAWA H, WATANABE K, ITOH J, HASEGAWA H, UMEMURA S, YASUDA M, TAKEKOSHI S, OSAMURA R, WATANABE K, TAKEDA K, HOSHI T, KATO K, OHARA S, KONNO R, ASAKI S, TOYOTA T, TATENO H, NISHIKAWA S, SASAKI F, Ito Y, Matsumoto K, Daikoku E, Otsuki Y, SANO M, UMEZAWA A, ABE H, FUKUMA M, SUZUKI A, ANDO T, HATA JI. Abstracts. Acta Histochem Cytochem 1998. [DOI: 10.1267/ahc.31.143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
| | | | | | | | - M.H. FAYED
- Department of Anatomy, Faculty of Veterinary Medicine Tanta University
- Department of Veterinary Anatomy, Faculty of Agriculture, Yamaguchi University
| | - T. MAKITA
- Department of Veterinary Anatomy, Faculty of Agriculture, Yamaguchi University
| | - Etsuko SUZAKI
- Department of Anatomy, Hiroshima University School of Medicine
| | - Katsuko KATAOKA
- Department of Anatomy, Hiroshima University School of Medicine
| | | | | | | | - Nobuteru USUDA
- Department of Anatomy and Cell Biology, Shinshu University School of Medicine
| | - Kohhei JOHKURA
- Department of Anatomy and Cell Biology, Shinshu University School of Medicine
| | | | | | | | | | | | - Shin-ichi Izumi
- Department of Histology and Coll Biology, Nmgmeaki University School of Medicine
| | | | - Masashi Shin
- Department of Histology and Coll Biology, Nmgmeaki University School of Medicine
| | | | | | | | | | | | | | | | - H. Miki
- Department of Ophthalmology and Pathology, Kansai Medical University
| | - M. Nakajima
- Department of Ophthalmology and Pathology, Kansai Medical University
| | - K. Yuge
- Department of Ophthalmology and Pathology, Kansai Medical University
| | - M. Taomoto
- Department of Ophthalmology and Pathology, Kansai Medical University
| | - A. Tsubura
- Department of Ophthalmology and Pathology, Kansai Medical University
| | - N. Shikata
- Department of Ophthalmology and Pathology, Kansai Medical University
| | - H. Senzaki
- Department of Ophthalmology and Pathology, Kansai Medical University
| | - Atsushi MASUDA
- Department of Pathology and Cell Regulation, Kyoto Prefectural University of Medicine
| | - Takanori NAGAOKA
- Department of Pathology and Cell Regulation, Kyoto Prefectural University of Medicine
| | - Masahito OYAMADA
- Department of Pathology and Cell Regulation, Kyoto Prefectural University of Medicine
| | - Tetsuro TAKAMATSU
- Department of Pathology and Cell Regulation, Kyoto Prefectural University of Medicine
| | - Hirokazu Furuta
- Department of Pathology and Cell Regulation, Kyoto Prefectural University of Medicine
| | - Yoshinobu Hata
- Department of Pathology and Cell Regulation, Kyoto Prefectural University of Medicine
| | - Keiichi Yokoyama
- Department of Pathology and Cell Regulation, Kyoto Prefectural University of Medicine
| | - Tetsuro Takamatsu
- Department of Pathology and Cell Regulation, Kyoto Prefectural University of Medicine
| | | | | | - K. Kawai
- Div of Diag Pathol Tokai Univ Sch of Med
| | | | | | | | | | | | | | - Nishiya I
- Departments of Obstetrics and Gynecology
| | - Satoru TAKAHASHI
- Department of Urology, Faculty of Medicine, The University of Tokyo
| | - Kazuki KAWABE
- Department of Urology, Faculty of Medicine, The University of Tokyo
| | | | | | - HIRONOBU SASANO
- Department of Pathology, Tohoku University School of Medicine
| | - KAZUMI IINO
- Department of Pathology, Tohoku University School of Medicine
| | - TAKASHI SUZUKI
- Department of Pathology, Tohoku University School of Medicine
| | - HIROSHI NAGURA
- Department of Pathology, Tohoku University School of Medicine
| | - Y-B Ge
- Department of Anatomy, Faculty of Medicine, Kagoshima University
| | - J. Ohmori
- Department of Anatomy, Faculty of Medicine, Kagoshima University
| | - S. Tsuyama
- Department of Anatomy, Faculty of Medicine, Kagoshima University
| | - D-H Yang
- Department of Anatomy, Faculty of Medicine, Kagoshima University
| | - F. Murata
- Department of Anatomy, Faculty of Medicine, Kagoshima University
| | - Kohei JOHKURA
- Department of Anatomy and Cell Biology, Shinshu University School of Medicine
| | - Yan LIANG
- Department of Anatomy and Cell Biology, Shinshu University School of Medicine
| | - Toshifumi MATSUI
- Department of Geriatric Medicine, Tohoku University School of Medicine
| | - Ayami NAKAZAWA
- Department of Anatomy and Cell Biology, Shinshu University School of Medicine
| | - Susumu HIGUCHI
- National Institute of Alcoholism, National Kurihama Hospital
| | | | - Heiji Naritaka
- Department of Pathology, Kitasato University, Department of Neurosurgery, Keio University
| | - Toru Kameya
- Department of Pathology, Kitasato University, Department of Neurosurgery, Keio University
| | - Yuichi Sato
- Department of Pathology, Kitasato University, Department of Neurosurgery, Keio University
| | - Hiroshi Inoue
- Department of Pathology, Kitasato University, Department of Neurosurgery, Keio University
| | - Mitsuhiro Otani
- Department of Pathology, Kitasato University, Department of Neurosurgery, Keio University
| | - Takeshi Kawase
- Department of Pathology, Kitasato University, Department of Neurosurgery, Keio University
| | - Yuji KUROOKA
- Department of Uroloby, Faculty of Medicine, The University of Tokyo
| | - Kimio NASU
- Department of Molecular Biology, Reserch Laboratories, Nippon Shinyaku Co. Ltd
| | - Shuji KAMEYAMA
- Department of Uroloby, Faculty of Medicine, The University of Tokyo
| | - Nobuo MORIYAMA
- Department of Uroloby, Faculty of Medicine, The University of Tokyo
| | - Junichi YANO
- Department of Molecular Biology, Reserch Laboratories, Nippon Shinyaku Co. Ltd
| | - Gozo TSUJIMOTO
- Division of Pediatric Pharmacology, National Children's Medical Reserch Center
| | - Tsutomu Matsushita
- Department of Pathology and Cell Regulation, Kyoto Prefectural University of Medicine
| | - Masahito Oyamada
- Department of Pathology and Cell Regulation, Kyoto Prefectural University of Medicine
| | - Hitoshi YAMAMOTO
- Department of Oral Anatomy, School of Dentistry, Iwate Medical University
| | - Junko MATSUURA
- Department of Anatomy, Okayama University Medical School
| | - Takako NOMURA
- Department of Anatomy, Okayama University Medical School
| | - Junzo SASAKI
- Department of Anatomy, Okayama University Medical School
| | - Tokio NAWA
- Department of Oral Anatomy, School of Dentistry, Iwate Medical University
| | | | | | - Hideyoshi KASIMOTO
- Department of Pathology
- Department of Orthopaedic Surgery, Kobe University School of Medicine
| | | | - Jun WATANABE
- Department of Anatomy, Kansai Medical University
| | - Kazuto Mino
- Department of Anatomy, Kansai Medical University
| | | | | | - Tetsuo Ueki
- Department of Urology, Faculty of Medicine, The University of Tokyo Department of Urology, Mitsui Memorial Hospital
| | - Takumi Takeuchi
- Department of Urology, Faculty of Medicine, The University of Tokyo Department of Urology, Mitsui Memorial Hospital
| | - Hiroaki Nishimatsu
- Department of Urology, Faculty of Medicine, The University of Tokyo Department of Urology, Mitsui Memorial Hospital
| | - Takahiro Kajiwara
- Department of Urology, Faculty of Medicine, The University of Tokyo Department of Urology, Mitsui Memorial Hospital
| | - Nobuo Moriyama
- Department of Urology, Faculty of Medicine, The University of Tokyo Department of Urology, Mitsui Memorial Hospital
| | - Kazuki Kawabe
- Department of Urology, Faculty of Medicine, The University of Tokyo Department of Urology, Mitsui Memorial Hospital
| | - Takashi Tominaga
- Department of Urology, Faculty of Medicine, The University of Tokyo Department of Urology, Mitsui Memorial Hospital
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - M. YASUDA
- Dept of Pathol Tokai Univ Sch of Med
| | | | | | | | - Kazuo TAKEDA
- Department of Anatomy, Kansai Medical University
| | - Tatsuya HOSHI
- Departments of Pathology, Medicine and Obstetrics and Gynecology, the Tohoku University School of Medicine
| | - Katsuaki KATO
- Departments of Pathology, Medicine and Obstetrics and Gynecology, the Tohoku University School of Medicine
| | - Shuichi OHARA
- Departments of Pathology, Medicine and Obstetrics and Gynecology, the Tohoku University School of Medicine
| | - Ryo KONNO
- Departments of Pathology, Medicine and Obstetrics and Gynecology, the Tohoku University School of Medicine
| | - Shigeru ASAKI
- Departments of Pathology, Medicine and Obstetrics and Gynecology, the Tohoku University School of Medicine
| | - Takayoshi TOYOTA
- Departments of Pathology, Medicine and Obstetrics and Gynecology, the Tohoku University School of Medicine
| | - Hiroo TATENO
- Departments of Pathology, Medicine and Obstetrics and Gynecology, the Tohoku University School of Medicine
| | - Sumio NISHIKAWA
- Department of Biology, Tsurumi University School of Dental Medicine
| | - Fumie SASAKI
- Department of Biology, Tsurumi University School of Dental Medicine
| | - Yuko Ito
- Department of Anatomy and Biology, Osaka Medical College
| | | | - Eriko Daikoku
- Department of Anatomy and Biology, Osaka Medical College
| | | | - Makoto SANO
- Department of Pathology, Keio University School of Medicine
| | | | - Hitoshi ABE
- Department of Pathology, Keio University School of Medicine
| | - Mariko FUKUMA
- Department of Pathology, Keio University School of Medicine
| | - Atsushi SUZUKI
- Department of Pathology, Keio University School of Medicine
| | - Takashi ANDO
- Department of Pathology, Keio University School of Medicine
| | - Jun-ichi HATA
- Department of Pathology, Keio University School of Medicine
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Itoh Y, Hamada H, Imai T, Seki T, Igarashi T, Yuge K, Fukunaga Y, Yamamoto M. Antinuclear antibodies in children with chronic nonspecific complaints. Autoimmunity 1997; 25:243-50. [PMID: 9344332 DOI: 10.3109/08916939708994733] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [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: 02/05/2023]
Abstract
Children who are chronically complaining nonspecific symptoms such as headache, fatigue, abdominal pain, and low grade fever are commonly seen in daily pediatric outpatient clinics. Some of them are unable to go to school and are diagnosed as school refusal by physicians or educational staff. On the other hand, there are children who do not fulfill any criteria of collagen diseases and whose anti-nuclear antibodies (ANA) are found to be positive. Some of these children have chronic nonspecific complaints. We prospectively studied the prevalence of ANA in children who visited a pediatric outpatient clinic because of chronic nonspecific complaints. Surprisingly, 74 out of 140 symptomatic children (52.4%) were positive for ANA, while only 5 out of 82 healthy control children (6.1%) were positive (p < 0.0001). 39 of 74 ANA positive patients (52.1%) have low ANA titers < or = 1:80, nevertheless 36 patients (47.9%) have high ANA titers > or = 1:160. ANA fluorescent patterns were homogeneous and speckled in 75.3%, speckled in 17.6% and others in 6.8%. ANA positive patients tended to have general fatigue and low grade fever, while gastrointestinal problems such as abdominal pain and diarrhea and orthostatic dysregulation symptoms were commonly seen in ANA negative patients. Children who were unable to go to school more than 1 day a week were seen significantly more in ANA positive patients than in negative patients. Autoantibody analysis using Western immunoblot revealed that 26 out of 63 ANA positive sera (41.3%) had antibodies to the 62 kD protein which had not been previously noticed. These data suggest that autoimmune mechanism may play a role in childhood chronic nonspecific symptoms. We therefore propose a new disease entity of the autoimmune fatigue syndrome in children. When chronically complaining children visit a pediatric out-patient clinic, immunological approaches should be considered before they are discriminated as school refusal or having psychogenic disorders.
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Affiliation(s)
- Y Itoh
- Department of Pediatrics, Nippon Medical School, Tokyo, Japan
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14
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Nambu H, Yuge K, Nakajima M, Shikata N, Takahashi K, Miki H, Uyama M, Tsubura A. Morphologic characteristics of N-methyl-N-nitrosourea-induced retinal degeneration in C57BL mice. Pathol Int 1997; 47:377-83. [PMID: 9211525 DOI: 10.1111/j.1440-1827.1997.tb04511.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.4] [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: 02/04/2023]
Abstract
Morphologic characteristics of retinal degeneration induced by a single systemic administration of N-methyl-N-nitrosourea (MNU) in mice was investigated. The aim was to characterize the MNU-induced retinal lesions in mice and compare them with human retinitis pigmentosa. A dose of 60 mg/kg body weight MNU, injected intraperitoneally into male and female C57BL mice, evoked progressive retinal degeneration in all treated mice, while control mice remained normal. An early change was photoreceptor apoptosis followed by infiltration of macrophages and swelling of the pigment epithelial cells with phagosomal inclusions for apoptotic photoreceptor cell removal. Loss of the majority of photoreceptor cells occurred within a week. Then, Feulgen-positive corpuscles, indicative of an aggregation of degenerative photoreceptor elements, vitread the outer limiting membrane were surrounded by Müller cell processes, and the duplication of the pigment epithelial cells sclerad the outer limiting membrane were seen 2 and 3 weeks after the treatment. Finally, the Feulgen-positive corpuscles disappeared and Müller cell processes were in direct contact with the continuous lining of the single layer of pigment epithelial cells. As in retinitis pigmentosa in humans, the primary event was loss of photoreceptor cells by apoptosis, but the migration of the pigment epithelial cells within the retina was not seen in the present model.
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Affiliation(s)
- H Nambu
- Department of Pathology, Kansai Medical University, Osaka, Japan
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15
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Adachi M, Takahashi K, Yuge K, Miki H, Uyama M. ['Ischemic tolerance' in ischemia-reperfusion injury in the optic nerve in rats]. Nippon Ganka Gakkai Zasshi 1997; 101:24-9. [PMID: 9028103] [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: 02/03/2023]
Abstract
Brief ischemia caused by high intraocular pressure induced tolerance to subsequent ischemia-reperfusion injury in rats. Male Wistar rats were subjected to 15 minutes of ischemia. This ischemic injury did not show distinct axonal damage in the optic nerve in electron microscopy. 1, 2, 4, 7, and 14 days after the first 15 min ischemia, the rats were subjected to a second ischemia for 45 minutes (ischemic tolerance). After 1 week, the rats were perfusion fixed and the optic nerves were processed for light and electron microscopy. Samples of the axonal density in the central optic nerve 2 mm behind the lamina cribrosa were observed and counted an electron micrographs. In axonal morpometric findings, 2 days and more after brief ischemia, the damage was lessened more than after 45 minutes ischemia (control) and the difference was significant. This 'ischemic tolerance' induced by brief ischemia might be considered the same stress as brain ischemia-reperfusion injury.
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Affiliation(s)
- M Adachi
- Department of Ophthalmology, Kansai Medical University, Osaka-fu, Japan
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16
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Abstract
The morphogenesis of the photoreceptor cells in the retinas of C3H mice carrying the rd gene and C57BL mice carrying the normal gene was compared, and retinas of the C3H mutants (C3H-lpr/lpr, -lprcg/lprcg, and -lpr/lpr-gld/gld) defective in apoptosis through the Fas system were examined. In the C57BL retina, the inner and outer nuclear layers were separated at 8 days of age, and the photoreceptor inner and outer segments began to grow between 8-11 days after birth with their most rapid growth occurring between 14-17 days of age. In the C3H retina, the development was comparable to that of the C57BL retina at 8 days of age but the reduction in thickness of the outer nuclear and photoreceptor layers was noted at 11 days of age, and the outer nuclear layer became reduced to only a few nuclei in thickness at 14 days, being completely missing or reduced to a single row of cells at 20 days. The degeneration was by an apoptotic mechanism as confirmed morphologically and by the TUNEL method. In all the C3H mutant retinas examined over 24 days of age, the complete depletion of the outer nuclear layer or reduction to a single row comparable to 20-day-old C3H mice was seen. The rd gene action is therefore independent of Fas/Fas ligand-medicated apoptosis.
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Affiliation(s)
- H Nambu
- Department of Ophthalmology, Kansai Medical University, Osaka, Japan
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17
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Yuge K, Nambu H, Senzaki H, Nakao I, Miki H, Uyama M, Tsubura A. N-methyl-N-nitrosourea-induced photoreceptor apoptosis in the mouse retina. In Vivo 1996; 10:483-8. [PMID: 8899426] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Retinal degeneration induced by a single intraperitoneal injection of N-methyl-N-nitrosourea (MNU) in male and female albino (GRS/A and DDD/1) and colored (C57BL) mice at 7 weeks of age was examined morphologically 1, 3, 7, 14 and 21 days after the treatment. A dose of 60 mg/kg body weight evoked progressive retinal degeneration in all mice. All albino and colored mice had a comparable progression of photoreceptor cell degeneration by an apoptotic mechanism, as confirmed by morphological and TUNEL methods. Apoptosis had already taken place 1 day after the treatment and was completed by Day 7. This process resulted in a thin remnant of retina with complete loss of photoreceptor cells-21 days after the treatment. During the course of apoptosis, the pigment epithelial cells were maintained in a continuous layer in all strains of mice. In colored mice, several layers of the swollen pigment-enriched cells were seen between the inner nuclear layer and the pigment epithelial layer 14 and 21 days after the treatment. In summary, the destruction of photoreceptor cells by the apoptotic process was the mechanism by which retinal degeneration was induced by MNU.
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Affiliation(s)
- K Yuge
- Department of Pathology, Kansai Medical University, Osaka, Japan
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18
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Ogawa S, Nagai Y, Zhang J, Yuge K, Hino Y, Jimbo O, Fukazawa R, Hayashi R, Kamisago M, Seki T, Genma Y, Ohkubo T, Takechi N, Yamamoto M. Evaluation of myocardial ischemia and infarction by signal-averaged electrocardiographic late potentials in children with Kawasaki disease. Am J Cardiol 1996; 78:175-81. [PMID: 8712139 DOI: 10.1016/s0002-9149(96)90392-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
We investigated myocardial ischemia and old myocardial infarction noninvasively using signal-averaged electrocardiographic late potentials (LPs) in patients with Kawasaki disease. Patients were divided into 4 groups: a noncoronary artery lesion group (n=136), a coronary artery lesion group (without myocardial ischemia and an old myocardial infarction; n=33), an ischemia group (n=16), and an old myocardial infarction group (n=13). Grouping was based on exercise thallium-201 myocardial scintigraphy, thallium-201 myocardial scintigraphy, exercise electrocardiography, coronary angiography, left ventriculography, and echocardiography. Signal-averaged electrocardiograms were recorded using a high-resolution system. Values of filtered QRS duration (f-QRSd), root-mean-square voltage, and duration of low-amplitude signal were judged using our own body surface area-related criteria (n=205) to determine positive rates of LPs and sensitivities and specificities to ischemia and infarction. These data were also interpreted using published criteria for adults and compared with those interpreted by our criteria. Positive rates by our criteria were 0% in the noncoronary artery lesion group, 9.1% in the coronary lesion group, 56.3% in the ischemia group, and 69.2% in the old myocardial infarction group. However, using the criteria for adults, these values were 0%, 3.0%, 25%, and 46.2%, respectively. Sensitivities to ischemia and infarction using our criteria were significantly higher (56.3% and 69.2%) than those using the criteria for adults (p < 0.05). Moreover, specificities to ischemia and infarction were very high (93.4% and 93.5%, respectively) using our criteria, and there were no significant differences from specificities using the criteria for adults. Also, we examined the reproducibility of values of LPs and LP parameters. The values of filtered QRS duration showed a high reproducibility in both LP-positive and -negative groups, followed by low-amplitude signal and then root-mean-square voltage. The results of LP presence or absence showed 100% reproducibility for both the LP-positive and -negative groups, supporting the utility of LPs for clinical applications. Thus, LPs provide useful information in a noninvasive manner for clarifying ischemia and infarction in patients with Kawasaki disease.
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Affiliation(s)
- S Ogawa
- Department of Pediatrics, Nippon Medical School Hospital, Tokyo, Japan
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Nakajima M, Yuge K, Senzaki H, Shikata N, Miki H, Uyama M, Tsubura A. Photoreceptor apoptosis induced by a single systemic administration of N-methyl-N-nitrosourea in the rat retina. Am J Pathol 1996; 148:631-41. [PMID: 8579125 PMCID: PMC1861687] [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: 01/31/2023]
Abstract
Retinal degeneration was induced by a single intraperitoneal injection of N-methyl-N-nitrosourea in female Sprague-Dawley albino rats at 50 days of age by two dose regimens, which were observed sequentially at 24, 48, and 72 hours and 7, 21, and 35 days after the treatment. After a dose of 75 mg/kg, methylnitrosourea evoked progressive retinal degeneration in all treated rats whereas a dose of 50 mg/kg was less effective. The 75-mg/kg-treated rats showed selective destruction of the photoreceptor cells by an apoptotic mechanism, as confirmed morphologically and by the terminal dUTP nick end labeling method. Apoptosis had already started at 24 hours after the treatment and was completed by day 7. During the photoreceptor degeneration, proliferation of glial fibrillary acidic protein and vimentin-positive Müller cells as detected by proliferating cell nuclear antigen labeling appeared at 48 hours and was prominent 72 hours after the treatment, and macrophage infiltration within the retina as recognized by ED1 positivity was maximal 7 and 21 days after the treatment. Retinal degeneration was also induced in female Brown-Norway colored rats in a similar dose-dependent manner. Pigment epithelium was discontinuous above Bruch's membrane, and migration of the swollen pigment epithelium toward the inner nuclear layer was seen 7 days after the treatment. Therefore, as also confirmed electron microscopically, the most striking change was the destruction of photoreceptor cells by the apoptotic process, followed by Müller cell proliferation, pigment epithelium migration, and macrophage infiltration for cell debris phagocytosis, resulting in a thin remnant of retina with attenuated inner nuclear cells in direct contact with Bruch's membrane or with the pigment epithelium and/or with the Müller cells 35 days after the treatment.
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Affiliation(s)
- M Nakajima
- Department of Ophthalmology, Kansai Medical University, Osaka, Japan
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Kimura A, Yuge K, Kosai KI, Kage M, Fujisawa T, Inoue T, Yamashita Y, Nakashima E, Kato H. Neonatal cholestasis in two siblings: a variant of Dubin-Johnson syndrome? J Paediatr Child Health 1995; 31:557-60. [PMID: 8924312 DOI: 10.1111/j.1440-1754.1995.tb00884.x] [Citation(s) in RCA: 10] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Two Japanese brothers with neonatal cholestasis associated with pigment granules in the hepatocytes and hepatosteatosis were evaluated for the possible role of hepatosteatosis in the Dubin-Johnson syndrome. METHODOLOGY AND RESULTS The morphology of pigment accumulation and the laboratory data in these cases were examined. The elevation of urinary coproporphrin isomer I to more than 90% and the presence cholestasis resembled that in the Dubin-Johnson syndrome, but the hypertriglyceridaemia ( > 1.13 mmol/L as triolein) and the hepatosteatosis differed. Both infants were thought to have familial hypertriglyceridaemia. However, this diagnosis was difficult to confirm in the absence of data on the normal values of apolipoprotein and lipoprotein isomer for infants. CONCLUSIONS A neonatal variant of the Dubin-Johnson syndrome may account for the unusual findings in these infants.
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Affiliation(s)
- A Kimura
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Japan
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21
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Abstract
The immunohistochemical features of 24 retinoblastoma specimens from 22 patients, 15 with unilateral and 7 with bilateral disease, were examined by the labelled streptavidin biotin (LSAB) method and compared with those of specimens from the remaining morphologically normal retina. In the normal retina, S-100 protein, glial fibrillary acidic protein (GFAP) and vimentin were detected in astrocytes and/or Müller cells. Neurofilament protein was seen in axons of the ganglion cells, synaptophysin was present in both plexiform layers, bcl-2 oncoprotein was seen in ganglion cells and bipolar cells, and neuron-specific enolase (NSE) was detected in ganglion cells, bipolar cells and photoreceptor cells and in their cell processes. While retinoblastoma (Rb) protein expression was noted in ganglion cells, bipolar cells, and some photoreceptor cells, p53 protein was not expressed at all. In all retinoblastomas, strong NSE expression and weak bcl-2 expression was observed in almost all tumour cells and synaptophysin was localized in rosette-forming cells, while tumour cells were devoid of S-100, GFAP, vimentin and neurofilament protein. These findings support the view that retinoblastomas are composed of neuron-committed cells. In addition, no Rb protein expression was detected in retinoblastomas, whereas p53 expression was found in 18 cases (75%).
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Affiliation(s)
- K Yuge
- Department of Ophthalmology, Kansai Medical University, Osaka, Japan
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22
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Nagai K, Yuge K, Ono E, Sakata Y, Motohiro T. Enterococcus faecium meningitis in a child. Pediatr Infect Dis J 1994; 13:1016-7. [PMID: 7845726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- K Nagai
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Fukuoka, Japan
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Fukazawa R, Seki T, Kamisago M, Watanabe M, Ogawa S, Yuge K, Hirayama T. A Ro/SS-A auto-antibody positive mother's infant revealed congenital complete atrioventricular block, followed by insulin dependent diabetes mellitus and multiple organ failure. Acta Paediatr Jpn 1994; 36:427-30. [PMID: 7942010 DOI: 10.1111/j.1442-200x.1994.tb03216.x] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
We experienced a congenital complete atrioventricular block infant who was born from a Ro/SS-A antibody positive mother. Ro/SS-A antibody was also found in this baby which was presumed to be mediated by the maternal placenta. Temporary cardiac pacing was required at birth and pacemaker implantation was performed at 9 months. At 11 months of age, the baby fell into shock and experienced multiple organ failure because of diabetes mellitus-induced coma. The association between congenital complete heart block and the Ro/SS-A antibody is well known. However, the accompaniment of insulin-dependent diabetes mellitus has not been reported previously. As the Ro/SS-A antigen appears in the cytoplasm of many tissues, the possibility of an association between Ro/SS-A antibody and diabetes mellitus is difficult to deny. We report this rare case to draw attention to the possibility that babies who are born from an Ro/SS-A antibody positive mother may develop diabetes mellitus as well as congenital complete heart block.
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Affiliation(s)
- R Fukazawa
- Department of Pediatrics, Nippon Medical School, Tokyo, Japan
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24
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Chinami M, Sasaki S, Hachiya N, Yuge K, Ohsugi T, Maeda H, Shingu M. Functional oligomerization of purified human papillomavirus types 16 and 6b E7 proteins expressed in Escherichia coli. J Gen Virol 1994; 75 ( Pt 2):277-81. [PMID: 8113748 DOI: 10.1099/0022-1317-75-2-277] [Citation(s) in RCA: 6] [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] [Indexed: 01/28/2023] Open
Abstract
Purified non-fused soluble human papillomavirus type 16 and 6b E7 proteins expressed in Escherichia coli were found to form oligomers. For both proteins, several degrees of oligomerization were demonstrated by gel filtration, dynamic laser light scattering and scanning electron microscopy. Oligomerization was dependent on the concentration of E7 protein. Oligomerized E7 proteins were able to bind the retinoblastoma gene product pRB and stimulated DNA synthesis when introduced into cells.
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Affiliation(s)
- M Chinami
- Department of Virology, Kurume University School of Medicine, Japan
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25
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Abstract
Using two direct introduction methods, DNA synthesis or cell proliferation activities of three purified proteins from E. coli, namely, human papillomavirus (HPV) E7 proteins of type 16, a mutant type 16 (24 C-G) (transformation defective) and type 6b, were measured in mouse fibroblast, C127 cells. By a microinjection method, the order of the cell mitotic indexes for the three E7 proteins as determined by 5-bromo-2'-deoxy-uridine (BrdU) staining was type 16, 6b and 16 (24 C-G). By the osmotic shock method, the 3H-TdR incorporation and coloration by (3-carboxymethoxy phenyl)-2-(4-sulfophenyl)-2H-tetolazorium (MTS) for the three proteins correlated with the pRb binding and focus forming activities previously reported (Munger et al. 1991). These results indicate that the simple osmotic shock method for direct protein introduction may be generally useful for transformation assays of oncoproteins.
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Affiliation(s)
- K Yuge
- Department of Virology, Kurume University School of Medicine, Japan
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26
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Affiliation(s)
- K Masaki
- Saga Research Institute, Otsuka Pharmaceutical Co., Ltd., Japan
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27
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Kimura A, Matsuyuki M, Yuge K, Ono E, Kuriya N, Kato H. Natural history of Japanese children with chronic hepatitis B: seroconversion from HBeAg to anti-HBe. Acta Paediatr Jpn 1993; 35:537-40. [PMID: 8109235 DOI: 10.1111/j.1442-200x.1993.tb03105.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- A Kimura
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Japan
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28
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Abstract
The external ear appears only in mammals and possesses a great diversity of forms. In addition, multiple nerves are distributed in the external ear. The nerves which are distributed in the external ear were investigated in humans and in the musk shrew (Suncus murinus) in a macroscopic study. The following results were obtained. Cranial nerves (CN) V, VII, X and cervical nerves supply the auricle and the external meatus in both humans and the musk shrew. Branches of the third division of CN V supply an anterior part of the external meatus and the anterior part of the auricle in both humans and the musk shrew. A branch of CN X, together with a branch of CN VII, supply the posterior parts of the external meatus in humans. In the musk shrew, a branch of CN X, together with a branch of CN VII, supplies the posterior part of the external meatus and the central part and the anterior portion of the auricle. Branches of the cervical nerve supply the posterior part of the auricle. Branches of the cervical nerve supply the posterior part of the external meatus and the central and posterior parts of the auricle in the musk shrew.
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Affiliation(s)
- N Ueno
- Department of Otorhinolaryngology, Nippon Medical School, Tokyo
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29
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Affiliation(s)
- T Ohsugi
- Department of Virology, Kurume University School of Medicine, Japan
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30
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Abstract
We compared the variation in plasma endothelin-1 (ET-1) levels by the sandwich-enzyme RIA method during each of the clinical stages of Kawasaki disease, a systemic vasculitis occurring in children (30 cases, ages 4-62 months) and examined whether ET-1 could be a clinical parameter for predicting coronary artery dilatation. The results revealed that the ET-1 level in the acute stage was higher than that in the recovery stage, the chronic stage, or in healthy controls (3.46 +/- 1.22 versus 2.20 +/- 0.56, 1.55 +/- 0.52, and 1.57 +/- 0.45 pg/ml, respectively; p < 0.01). Furthermore, in the acute stage the ET-1 level in the group with coronary artery dilatation (positive group, five cases) increased more than that in the negative group (25 cases) (5.13 +/- 1.64 versus 3.09 +/- 0.70 pg/ml, respectively; p < 0.01). When the ET-1 value was more than 4.5 pg/ml in the acute stage, our prediction for coronary artery dilatation demonstrated a high value in indices of both sensitivity (100%) and specificity (96.1%). Thus, plasma concentration of ET-1 was increased in the acute stage of Kawasaki disease and was very high in patients with coronary artery dilatation. The plasma ET-1 level was considered to be an important factor in predicting the dilatational lesions of the coronary artery in the acute stage of Kawasaki disease.
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Affiliation(s)
- S Ogawa
- Department of Pediatrics, Nippon Medical School Hospital, Tokyo, Japan
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31
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Iso H, Yuge K, Hirayama T. [Spatial and quantitative analysis of the QRS and T waves by Frank-lead orthogonal electrocardiography in normal children. Comparative study in an early and late cord-clamping groups in newborns]. Nihon Ika Daigaku Zasshi 1992; 59:409-17. [PMID: 1430113 DOI: 10.1272/jnms1923.59.409] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We studied a spatial and quantitative analysis of QRS and T waves by Frank-lead orthogonal electrocardiography (afterwards; ECG) in 50 cases of normal newborns, 30 cases of infants, 50 cases of adults, and also the variation in age was investigated. In the newborns, the comparative study was made serially, longitudinally in 21 infants with an early clamping of the cord and 29 infants with a late clamping of the cord. The results are mainly as follows. 1) The parameters reflecting the cardiac electromotive force of the right ventricle such as Sx, Qz and Sx+Qz decreased with aging. 2) Rx, i.e., the maximum leftward projection of QRS vector increased until the children, probably because the left ventricle was dominant in their growth and development and in the increased amount of work. A subsequent reduced value in the adults was considered to be mainly due to an increase of the distance between the heart and electrode by the increase in the thorax, particularly the transverse diameter and due to the growth in subcutaneous fat and muscle. 3) The values of Rx/Sx increased with aging. Rx and Sx in the adults were less than those in the children, but Rx/Sx was larger than that of Rx because Sx was less than Rx. 4) Age-related changes of Tz was most characteristic and was negative up to several days after birth. T vector was in forward direction and then turned positive (in backward). This was greatest at the period of the infants. Subsequently, it turned negative in the childhood, and extent was maximum in the adults.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- H Iso
- Department of Pediatrics, Nippon Medical School
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32
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Kimura A, Yuge K, Yukizane S, Kage M, Nittono H, Mahara R, Kurosawa T, Tohma M. Abnormal low ratio of cholic acid to chenodeoxycholic acid in a cholestatic infant with severe hypoglycemia. J Pediatr Gastroenterol Nutr 1991; 12:383-7. [PMID: 2072233 DOI: 10.1097/00005176-199104000-00018] [Citation(s) in RCA: 6] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We report a premature infant with severe hypoglycemia (serum glucose: 6 mg/dl) and cholestasis (serum total bile acids: 211.55 mumol/L) caused by hypoplasia of the interlobular bile ducts. This patient had developed intracranial hemorrhage and sepsis while undergoing treatment for hypoglycemia. As a result of endocrine evaluation, we made a diagnosis of idiopathic panhypopituitarism, congenital absence or hypoplasia of the pituitary gland. Moreover, we found abnormal bile acid profiles: The ratio of cholic acid to chenodeoxycholic acid was abnormally low in serum (0.04) and in biliary bile (0.33). However, 3 alpha,7 alpha,12 alpha-trihydroxy-5 beta-cholestan-26-oic acid and bile alcohols were not detected. We therefore suspected that the severe cholestasis and abnormal bile acid profiles in the serum and biliary bile in this patient were related to physiologic immaturity of the enterohepatic circulation of bile acids and immaturity of hepatic 12 alpha-hydroxylation.
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Affiliation(s)
- A Kimura
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Japan
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33
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Chinami M, Yuge K, Hachisuka H, Tanikawa E, Goto M, Ohtsu Y, Sasai Y, Shingu M. Densitometric determination of human papillomavirus DNA quantities by chromato-scanning in the fluorescence mode. J Virol Methods 1991; 32:101-8. [PMID: 1648568 DOI: 10.1016/0166-0934(91)90189-7] [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: 12/28/2022]
Abstract
The quantitation of human papillomavirus DNA isolated from warts by chromato-scanning (fluorescence mode) photographs of ethidium bromide-stained agarose gels is described. Excitation at 200 nm (with a cutoff filter at 400 nm) generates fluorescence from the white portion of the printing paper. The fluorescent intensity correlated with the quantities of DNA in the band of interest. The amounts of DNA were determined using calibration curves of approximately the same size as lambda phage DNA fragments. This general method of quantification is applicable to photographs of other types of polynucleotides capable of being separated and stained in a gel medium.
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Affiliation(s)
- M Chinami
- Department of Virology, Kurume University School of Medicine, Japan
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34
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Chinami M, Yuge K, Kawano K, Shingu M. Refolding and purification of human papillomavirus type 16 E7-lacZ fusion protein expressed in Escherichia coli. Protein Expr Purif 1991; 2:175-8. [PMID: 1668271 DOI: 10.1016/1046-5928(91)90068-t] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Human papillomavirus (HPV) type 16 E7-lacZ fusion protein was produced in Escherichia coli, extracted as inclusion bodies, refolded with reducing reagents, and subjected to gel filtration. The refolded protein was purified by ion-exchange column chromatography, resulting in a single band on sodium dodecyl sulfate-polyacrylamide gel electrophoresis. 1H nuclear magnetic resonance spectral changes were observed in the high field methyl region in the presence of Zn2+ ion, suggesting that the refolded form of the fusion protein is possibly renaturated into the putative zinc finger motif (C. Edmond and K. H. Vousden, 1989, J. Virol. 63, 2650-2656) and supporting the data of J. A. Rawls, R. Pusztai, and M. Green (1990, J. Virol. 64, 6121-6129) on zinc binding to E7 protein using radioisotopically labeled zinc ion.
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Affiliation(s)
- M Chinami
- Department of Virology, Kurume University School of Medicine, Japan
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35
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Watanabe K, Yuge K, Sato K, Sonoda K, Masaki Y, Maruyama S, Okubo M, Obata F, Otani F, Kaneko T. Donor bone marrow cell facilitates induction of tolerance to kidney allografts in dogs treated with fractionated lymphoid irradiation and FK 506. Transplant Proc 1991; 23:568-72. [PMID: 1703706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- K Watanabe
- Department of Transplantation Immunology, Kitasato University School of Medicine, Sagamihara, Japan
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36
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Abstract
The effects of 4-pentenoic acid, a chemical claimed to induce fatty liver morphologically similar to that seen in Reye's syndrome, on carnitine metabolism and on hepatic histology were studied. Male Wistar rats were injected with 50 mg/kg doses of 4-pentenoic acid intraperitoneally every four hours over a period of 82 hours. Control rats received a similar volume of saline instead. The animals were then sacrificed at 82 hours. Liver, serum and urine were collected and stored in dry ice. The concentrations of free, acyl-, and total (free plus acyl) carnitines determined in serum were found to be significantly decreased in the rats which had received 4-pentenoic acid, while the concentrations of acyl- and total carnitines were significantly elevated in urine. In the liver tissue, the concentrations of short chain- and medium chain-acylcarnitines tended to be elevated, but the differences were not statistically significant. These results suggest that enhanced acylation of free carnitine with metabolites of 4-pentenoic acid, and excretion of the resulting acylcarnitine into urine are likely mechanism of the 4-pentenoic acid-induced hypocarnitinemia. Liver histology revealed marked fatty change with minute fat droplets similar to those observed in Reye's syndrome, and very slight alteration in mitochondrial configuration.
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Affiliation(s)
- K Yuge
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Japan
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37
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Hirano T, Kashiwado I, Suzuki I, Yoshihiro T, Yuge K, Asano G. Immunohistopathological properties of pleomorphic adenoma in salivary gland. Nihon Ika Daigaku Zasshi 1990; 57:172-9. [PMID: 1694862 DOI: 10.1272/jnms1923.57.172] [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] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Fifty-eight salivary gland pleomorphic adenomas and 5 normal salivary glands were studied immunohistochemically with respect to intermediate filaments (keratin, desmin, and vimentin), actin and S-100 protein to observe the cellular differentiation of these tumor cells. Normal myoepithelial cells showed positive immunostaining for actin, vimentin and S-100 protein. Pleomorphic adenomas expressed keratin, vimentin and S-100 protein to various degrees, but only a few tumor cells of pleomorphic adenoma revealed actin. The results indicate that the tumor cells of pleomorphic adenoma show a bipolar differentiation capability of both epithelial and mesenchymal origins, although normal myoepithelial cells show only mesenchymal characteristics. The findings also support previous reports using light and electron microscopy, and also contribute to more precise diagnosis and a better understanding of the histogenesis of this tumor.
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Affiliation(s)
- T Hirano
- Department of Otorhinolaryngology, Nippon Medical School First Hospital, Tokyo, Japan
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38
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Chinami M, Ohtsu Y, Goto M, Yuge K, Kumashiro H, Shingu M. Subcloning and trial of expression of the protein kinase catalytic domain of RSV-src gene. Kurume Med J 1990; 37:9-13. [PMID: 2214679 DOI: 10.2739/kurumemedj.37.9] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The gene of catalytic domain of the protein kinase of RSV-scr was cloned into the BamHI cloning site of translation vector pET-8c which containing T7 RNA polymerase promotor, and transformed BL21 (DE3) pLys S (Studier and Moffatt, 1986). The putative molecular weight of the protein was about 33 kd as evaluated on the basis of its nucleotide size showed the identical mobility in SDS-polyacrylamide gel electrophoresis. However, yield of protein production was not high, probably, because of its instability in Escherichia coli.
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Affiliation(s)
- M Chinami
- Department of Virology, Kurume University School of Medicine, Japan
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39
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Chinami M, Yuge K, Goto M, Ohtsu Y, Shingu M. Effects of protein phosphorylation with p43v-abl and protein kinase A catalytic subunit on fluorescence intensity. Kurume Med J 1990; 37:149-52. [PMID: 2126583 DOI: 10.2739/kurumemedj.37.149] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
To study the effect of phosphorylation on protein conformation, a fluorescence spectroscopic study was performed on phosphorylated enolase and histoneH1 proteins. The peak of fluorescence was 330 and 360 nm for each protein, respectively, when excited at 287 nm. The intensities of the fluorescence were measured during the phosphorylation reactions with the protein kinase A and p43v-abl, for serine, threonine and tyrosine, respectively. Slightly increased intensities at 330 and 360 nm for enolase and histoneH1 protein were observed by phosphorylation with p43v-abl, whereas decreased intensities occurred with the protein kinase A catalytic subunit. These data suggest that micro-structural changes are induced at the residue, either tyrosine, serine or threonine in the protein.
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Affiliation(s)
- M Chinami
- Department of Virology, Kurume University School of Medicine, Japan
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40
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Kimura A, Mahara R, Tohma M, Ushijima K, Yuge K, Ono E, Yamashita F. Unusual 1 beta-hydroxylated bile acids in children with a paucity in interlobular bile ducts. Clin Chim Acta 1989; 185:215-7. [PMID: 2625005 DOI: 10.1016/0009-8981(89)90048-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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41
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Watanabe K, Yuge K, Sato K, Yamagishi K, Sonoda K, Masaki Y, Maruyama S, Takahara H, Matsubayashi T, Yago K. Prolongation effect of a small dose of FK506, cyclosporine, or azathioprine on renal allografts in dogs treated with fractionated lymphoid irradiation and donor bone marrow cell infusion. Transplant Proc 1989; 21:1112-5. [PMID: 2468213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- K Watanabe
- Department of Transplantation Immunology, Kitasato University School of Medicine, Sagamihara, Japan
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42
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Kimura A, Yoshida I, Nishiyori A, Fujisawa T, Yuge K, Yamashita F. Grade I Reye syndrome and profound dicarboxylic aciduria. J Pediatr 1988; 113:161-2. [PMID: 3385524 DOI: 10.1016/s0022-3476(88)80554-7] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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43
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Matsuishi T, Yuge K, Aramaki S, Yoshino M, Yoshida I, Yamashita F. Lipid storage myopathy associated with recurrent Reye syndrome-like attacks, but with a normal carnitine level. Brain Dev 1988; 10:125-9. [PMID: 3389475 DOI: 10.1016/s0387-7604(88)80083-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A 7-year-old girl developed recurrent episodes of hepatic and cerebral dysfunction which mimicked those in Reye syndrome (RS). Because of mild muscle weakness, she had repeated muscle biopsies which showed markedly increased amounts of lipid droplets, predominantly in type 1 fibers. Liver histological examination showed widespread hepatocellular steatosis. However, diffuse microvesicular fat, seen in RS, was not found in the cytoplasm. The concentrations of free- and acylcarnitine in serum and muscle were within normal ranges. Normal ketogenesis was induced by fasting. Based on the clinical, laboratory, and histopathological findings, our patient was initially thought to have systemic carnitine deficiency. However, the serum and muscle carnitine levels were within normal limits. Although the primary metabolic defect has yet to be elucidated, the present study indicates that lipid storage myopathy in the absence of carnitine deficiency can be complicated with RS-like episodes.
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Affiliation(s)
- T Matsuishi
- Department of Pediatrics, Kurume University School of Medicine, Fukuoka, Japan
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44
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Fujisawa T, Ono E, Kimura A, Yuge K. [Abnormal endocrinological functions in children with inflammatory bowel disease]. Nihon Shokakibyo Gakkai Zasshi 1987; 84:2323-30. [PMID: 3437555] [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]
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45
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Abstract
Decrease in the serum concentrations of total and free carnitine were found in patients who had received multiple doses of antiepileptic drugs, either including or excluding sodium valproate. These concentrations were more depressed in a former patient group. In all patients there were no abnormal losses of carnitine in urine. Several factors which may be relevant to the hypocarnitinemia were surveyed statistically. The univariate correlation analyses revealed that in all the patients the total and the free carnitine levels were each correlated with the values of arm muscle circumference, and they were inversely correlated with the dosages of sodium valproate. Double regression analyses again revealed that the value of arm muscle circumference is the most critical positive factor, and dosage of sodium valproate is the most critical negative contributor, to both the total and the free serum carnitine concentrations. There was, however, some additional negative contribution by the dosage of phenytoin to the total carnitine concentration. These results indicate that although sodium valproate itself reduces the carnitine concentrations in serum, a poor muscle volume and co-administration of phenytoin with sodium valproate enhance hypocarnitinemia.
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46
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Yuge K, Ichikawa K, Uchida M. [Carcinogenesis following radiotherapy of benign head and neck diseases]. Nihon Jibiinkoka Gakkai Kaiho 1985; 88:238-41. [PMID: 3889244] [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: 01/07/2023]
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47
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Abstract
Primary neuroblastoma of the nasal cavity is very rare, and it is one of the most difficult tumor to differentiate from other small round cell tumors. The present case was proved to be olfactory neuroblastoma by histological, electron microscopical and histochemical findings. This is the first case in which biogenic amines were proven by glyoxylic acid-induced fluorescence in vitro. Discussions were made on the pathological differences with adrenal neuroblastoma.
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48
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Hattori Y, Tsurukubo K, Watanabe M, Murakami T, Yuge K, Suzuki K. An electron microscopic study on the regeneration of the curetted tracheal mucosa in rats. Nihon Ika Daigaku Zasshi 1984; 51:568-72. [PMID: 6501553 DOI: 10.1272/jnms1923.51.568] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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49
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Motohiro T, Koga T, Tomita N, Fujimoto T, Nishiyama T, Ishimoto K, Tominaga K, Yamashita F, Koga Y, Takajo N, Araki H, Tanaka K, Imai S, Yuasa T, Nagayama K, Tsugawa S, Tanaka Y, Shimada Y, Aramaki S, Iriki T, Cho H, Yamamoto M, Komatsu Y, Tanaka C, Yuge K, Toyoda A, Matsunaga S, Yukizane S, Takechi T, Matsuo H, Eto Y, Matsuyuki M. [Fundamental and clinical studies of T-1982 (cefbuperazone) in the pediatric field]. Jpn J Antibiot 1983; 36:888-909. [PMID: 6348343] [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: 01/19/2023]
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50
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Abstract
In the eight years from 1973 to 1980, we performed tympanoplasty on approximately 350 cases, in 50 of which malleostapediopexy was undertaken. Postoperative hearing improvement occurred in 86%. Hearing further improved as compared with that at the third postoperative week occurred in 17 of 31 long-term follow-up cases (55%). Malleostapediopexy proved satisfactory in that it could be applied if the malleus and stapes were intact, it was technically simple, requiring no higher skill, and produced good improvement of hearing.
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