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Nishimura A, Kawahara M, Kawachi Y, Hasegawa J, Makino S, Kitami C, Nakano T, Otani T, Nemoto M, Hattori S, Nikkuni K. Totally laparoscopic resection of right-sided colon cancer using transvaginal specimen extraction with a 10-mm-long abdominal incision. Tech Coloproctol 2022; 26:755-760. [DOI: 10.1007/s10151-022-02636-7] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 05/01/2022] [Indexed: 11/24/2022]
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E. Kawaguchi, Miyai N, Zhang Y, Hattori S, Uematsu Y, Utsumi M, Takeshita T, Arita M. The association of arterial stiffness with muscle mass reduction and low muscle strength in community-dwelling elderly individuals: The Wakayama study. Atherosclerosis 2021. [DOI: 10.1016/j.atherosclerosis.2021.06.298] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Yang J, Sun Y, Xu F, Liu W, Hayashi T, Mizuno K, Hattori S, Fujisaki H, Ikejima T. Autophagy and glycolysis independently attenuate silibinin-induced apoptosis in human hepatocarcinoma HepG2 and Hep3B cells. Hum Exp Toxicol 2021; 40:2048-2062. [PMID: 34053323 DOI: 10.1177/09603271211017609] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
PURPOSE The mechanism of cytotoxicity of silibinin on two human hepatocellular carcinoma (HCC) cell lines, HepG2 (p53 wild-type) and Hep3B cells (p53 null), is examined in relation with the induction of autophagy and phosphorylation of AMP-activated protein kinase (p-AMPK). MATERIALS AND METHODS Levels of apoptosis in relation to the levels of autophagy and those of glycolysis-related proteins, glucose transporter 1/4 (Glut1/4) and hexokinase-II (HK2), in HepG2 and Hep3B cells were examined. RESULTS Silibinin-induced apoptosis was incomplete for HCC cell death in that up-regulated autophagy and/or reduced level of glycolysis, which are induced by silibinin treatment, antagonized silibinin-induced apoptosis. Inhibition of autophagy with 3-methyl adenine (3MA) or blocking of AMP-activated protein kinase (AMPK) activation with Compound C (CC) enhanced silibinin-induced apoptosis. The results confirm that AMPK involved in autophagy as well as in glycolysis remaining with silibinin is responsible for attenuation of silibinin-induced apoptosis. Blocking of AMPK or autophagy contributes to the enhancement of silibinin's cytotoxicity to HepG2 and Hep3B cells. CONCLUSION This study shows that incomplete apoptosis of HCC by silibinin treatment becomes complete by repression of autophagy and/or glycolysis.
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Affiliation(s)
- J Yang
- Department of Pharmacy, 159411The Third People's Hospital of Chengdu, Chengdu, Sichuan, People's Republic of China.,Wuya College of Innovation, 58575Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China
| | - Y Sun
- Wuya College of Innovation, 58575Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China
| | - F Xu
- Wuya College of Innovation, 58575Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China
| | - W Liu
- Wuya College of Innovation, 58575Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China
| | - T Hayashi
- Wuya College of Innovation, 58575Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China.,Department of Chemistry and Life Science, School of Advanced Engineering, Kogakuin University, Hachioji, Tokyo, Japan.,Nippi Research Institute of Biomatrix, Toride, Ibaraki, Japan
| | - K Mizuno
- Nippi Research Institute of Biomatrix, Toride, Ibaraki, Japan
| | - S Hattori
- Nippi Research Institute of Biomatrix, Toride, Ibaraki, Japan
| | - H Fujisaki
- Nippi Research Institute of Biomatrix, Toride, Ibaraki, Japan
| | - T Ikejima
- Wuya College of Innovation, 58575Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China.,Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, 58575Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China
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Asada-Utsugi M, Uemura K, Kubota M, Noda Y, Tashiro Y, Uemura TM, Yamakado H, Urushitani M, Takahashi R, Hattori S, Miyakawa T, Ageta-Ishihara N, Kobayashi K, Kinoshita M, Kinoshita A. Mice with cleavage-resistant N-cadherin exhibit synapse anomaly in the hippocampus and outperformance in spatial learning tasks. Mol Brain 2021; 14:23. [PMID: 33494786 PMCID: PMC7831172 DOI: 10.1186/s13041-021-00738-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 01/16/2021] [Indexed: 11/30/2022] Open
Abstract
N-cadherin is a homophilic cell adhesion molecule that stabilizes excitatory synapses, by connecting pre- and post-synaptic termini. Upon NMDA receptor (NMDAR) activation by glutamate, membrane-proximal domains of N-cadherin are cleaved serially by a-disintegrin-and-metalloprotease 10 (ADAM10) and then presenilin 1(PS1, catalytic subunit of the γ-secretase complex). To assess the physiological significance of the initial N-cadherin cleavage, we engineer the mouse genome to create a knock-in allele with tandem missense mutations in the mouse N-cadherin/Cadherin-2 gene (Cdh2 R714G, I715D, or GD) that confers resistance on proteolysis by ADAM10 (GD mice). GD mice showed a better performance in the radial maze test, with significantly less revisiting errors after intervals of 30 and 300 s than WT, and a tendency for enhanced freezing in fear conditioning. Interestingly, GD mice reveal higher complexity in the tufts of thorny excrescence in the CA3 region of the hippocampus. Fine morphometry with serial section transmission electron microscopy (ssTEM) and three-dimensional (3D) reconstruction reveals significantly higher synaptic density, significantly smaller PSD area, and normal dendritic spine volume in GD mice. This knock-in mouse has provided in vivo evidence that ADAM10-mediated cleavage is a critical step in N-cadherin shedding and degradation and involved in the structure and function of glutamatergic synapses, which affect the memory function.
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Affiliation(s)
- M. Asada-Utsugi
- School of Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Department of Neurology, Kyoto University Graduate School of Medicine, Kyoto, Japan
- Department of Neurology, Shiga University of Medical Science, Seta-Tsukinowa-Cho Otsu, Shiga, 520-2192 Japan
| | - K. Uemura
- Department of Neurology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - M. Kubota
- School of Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Y. Noda
- School of Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Y. Tashiro
- School of Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - T. M. Uemura
- Department of Neurology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - H. Yamakado
- Department of Neurology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - M. Urushitani
- Department of Neurology, Shiga University of Medical Science, Seta-Tsukinowa-Cho Otsu, Shiga, 520-2192 Japan
| | - R. Takahashi
- Department of Neurology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - S. Hattori
- Division of Systems Medical Science, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, 470-1192 Japan
| | - T. Miyakawa
- Division of Systems Medical Science, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, 470-1192 Japan
| | - N. Ageta-Ishihara
- Division of Biological Sciences, Department of Molecular Biology, Nagoya University Graduate School of Science, Nagoya, 464-8602 Japan
| | - K. Kobayashi
- Department of Pharmacology, Graduate School of Medicine, Nippon Medical School, Tokyo, 113-8602 Japan
| | - M. Kinoshita
- Division of Biological Sciences, Department of Molecular Biology, Nagoya University Graduate School of Science, Nagoya, 464-8602 Japan
| | - A. Kinoshita
- School of Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Tanaka H, Ohno N, Kajita S, Takano H, Hattori S, Imaeda Y. Evaluation of axial decay length of plasma pressure in detached plasma. Nuclear Materials and Energy 2020. [DOI: 10.1016/j.nme.2020.100812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Shigeta K, Matsumoto K, Takeda T, Hattori S, Kaneko G, Matsushima M, Yasumizu Y, Tanaka N, Morita S, Kosaka T, Mizuno R, Asanuma H, Oya M. Comparing the oncological outcomes between pure laparoscopic radical nephroureterectomy and laparoscopic assisted nephroureterectomy for upper-tract urothelial carcinoma: A multi-center cohort study adjusted by propensity score matching. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32771-3] [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: 11/30/2022] Open
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Ota T, Murakami Y, Kozuka Y, Ohshiro C, Kihara N, Gunji Y, Hattori S, Noguchi K. P224 Valvuloplasty treatment and three-dimensional analysis for isolated cleft of the anterior mitral valve leaflet: a case report. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction: Isolated cleft of the anterior mitral valve leaflet is a very rare congenital disease and a cause of mitral regurgitation
not associated with atrioventricular septal defect. In this case, we report our experience in valvuloplasty treatment for mitral regurgitation with this rare aetiology.
Case description
23-year-old Russian women. Although cardiac murmur was pointed out in her childhood and she was diagnosed as mitral regurgitation, she refused treatment. After getting married with a Japanese man and moving to Japan, her symptoms had worsened and she visited our hospital for treatment. Preoperative transthoracic echocardiography (TTE) had indicated the regurgitation from the central part of the mitral valve. Preoperative transoesophageal echocardiography (TOE) had pointed out the isolated cleft of the anterior mitral valve.
Surgical mitral valvuloplasty was scheduled, and the TOE after anaesthetic induction showed the isolated cleft of the anterior mitral valve the same as in the preoperative period and pointed out the posterior leaflet billowing. The operative finding was also similar to TOE: the largely bisected central anterior mitral valve and billowing, P2 billowing, shortening of P1 and P3, P2-3 cleft. There were no chords at the anterior cleft. The valvuloplasty was performed including five-time pump runs in total: 1) Continuous suture for the anterior cleft and ring annuloplasty were performed, and the regurgitation was seemed to be almost controlled at the water-leak test and the ink test; 2) Artificial chordae and leaflet plications were added to residual regurgitation from the posterior region; 3)The residual regurgitation was controlled to Mild but it became a lateral jet toward the ring; 4)Mild remnant flow was pointed out: the regurgitation seemed to be from the posterior cleft, where immediately below the ring suture; 5) Pericardium patch was added and the remnant flow was almost eliminated. The pump was weaned and the operation was finished without any problems.
Discussion
The cause of difficulty in this valvuloplasty was thought to be caused by the difficulty in evaluating the mitral valve morphology. It was evident that the anterior leaflet of the mitral valve was largely bisected. However, it was difficult to evaluate the coaptation line and area due to the absence of chordal cords in the anterior cleft and the billowing or shortening of the posterior leaflet. Although preoperative three-dimensional analysis helped evaluating the isolated cleft and the regurgitation was almost controlled in the evaluation in the operation field, nevertheless, a residual regurgitation occurred and indicated in the TOE after re-beating.
Conclusion
It is important and necessary to use fine evaluation of coaptation is needed in valvuloplasty for isolated cleft of the anterior mitral valve leaflet; not only apply three-dimensional analysis but also apply two-dimensional echocardiogram.
Abstract P224 Figure.
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Affiliation(s)
- T Ota
- Shonan Kamakura General Hospital, Anesthesiology, Kamakura, Japan
| | - Y Murakami
- Shonan Kamakura General Hospital, Cardiac Ultrasound Laboratory, Kamakura, Japan
| | - Y Kozuka
- Shonan Kamakura General Hospital, Cardiac Ultrasound Laboratory, Kamakura, Japan
| | - C Ohshiro
- Shonan Kamakura General Hospital, Cardiac Ultrasound Laboratory, Kamakura, Japan
| | - N Kihara
- Shonan Kamakura General Hospital, Cardiac Ultrasound Laboratory, Kamakura, Japan
| | - Y Gunji
- Shonan Kamakura General Hospital , Cardiovascular Surgery, Kamakura, Japan
| | - S Hattori
- Shonan Kamakura General Hospital , Cardiovascular Surgery, Kamakura, Japan
| | - K Noguchi
- Shonan Kamakura General Hospital , Cardiovascular Surgery, Kamakura, Japan
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8
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Buyo M, Takahashi S, Iwahara A, Tsuji T, Yamada S, Hattori S, Uematsu Y, Arita M, Ukai S. Metabolic Syndrome and Cognitive Function: Cross-Sectional Study on Community-Dwelling Non-Demented Older Adults in Japan. J Nutr Health Aging 2020; 24:878-882. [PMID: 33009539 DOI: 10.1007/s12603-020-1412-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 11/29/2022]
Abstract
AIM This is a cross-sectional study of relation between metabolic syndrome and cognitive function in community-dwelling non-demented older adults in Japan. We examine the effect of metabolic syndrome and its components on global cognitive function. We also aim to clarify differences of specific cognitive domains between the subjects with and without metabolic syndrome. METHODS We studied 2150 subjects aged between 60 and 90 years whose scores on mini mental state examination (MMSE) were over 23 points. We analyzed difference in MMSE scores between the subjects with and without metabolic syndrome. Logistic regression analysis was performed with MMSE score as the dependent variable and metabolic syndrome components as the independent variable adjusted with age. We also examined differences in attention, logical memory, and verbal and category fluency between the subjects with and without metabolic syndrome. RESULTS MMSE scores were not significantly different between subjects with and without metabolic syndrome. In logistic regression analysis, the score of MMSE was significantly negatively associated with triglycerides in males and significantly negatively associated with abdominal circumference in females. Subjects with metabolic syndrome showed significantly lower performance of attention tasks compared to subjects without metabolic syndrome. CONCLUSIONS Our results suggest that in community-dwelling non-demented Japanese older adults, attention but not global cognitive function may be impaired by metabolic syndrome. Inverted association between some components of metabolic syndrome and global cognitive function indicate necessity of further studies on the relation between undernutrition and cognitive function.
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Affiliation(s)
- M Buyo
- Momoko Buyo CNS MSN RN, Department of Neuropsychiatry, Wakayama Medical University, 811-1, Kimiidera, Wakayama, 641-0012 Japan, Telephone: +81-73-441-0759, Fax: +81-73-441-0769, E-mail:
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Ogihara K, Kikuchi E, Okabe T, Hattori S, Yamashita R, Yoshimine S, Shirotake S, Matsumoto K, Mizuno R, Hara S, Oyama M, Niwakawa M, Oya M. Neutrophil-to-lymphocyte ratio is a useful biomarker for predicting worse clinical outcome in chemo-resistant urothelial carcinoma patients treated with pembrolizumab. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz425.009] [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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10
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Gautier E, Savarino J, Hoek J, Erbland J, Caillon N, Hattori S, Yoshida N, Albalat E, Albarede F, Farquhar J. Author Correction: 2600-years of stratospheric volcanism through sulfate isotopes. Nat Commun 2019; 10:2663. [PMID: 31209219 PMCID: PMC6572742 DOI: 10.1038/s41467-019-10539-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Affiliation(s)
- E Gautier
- Univ. Grenoble Alpes, CNRS, IRD, Grenoble INP, Institut des Géosciences de l'Environnement (IGE), 54 rue Molière, 38058, Grenoble Cedex 9, France.
| | - J Savarino
- Univ. Grenoble Alpes, CNRS, IRD, Grenoble INP, Institut des Géosciences de l'Environnement (IGE), 54 rue Molière, 38058, Grenoble Cedex 9, France.
| | - J Hoek
- Department of Geology and Earth System Science Interdisciplinary Center (ESSIC), University of Maryland, College Park, MD, 20742, USA
| | - J Erbland
- Univ. Grenoble Alpes, CNRS, IRD, Grenoble INP, Institut des Géosciences de l'Environnement (IGE), 54 rue Molière, 38058, Grenoble Cedex 9, France
| | - N Caillon
- Univ. Grenoble Alpes, CNRS, IRD, Grenoble INP, Institut des Géosciences de l'Environnement (IGE), 54 rue Molière, 38058, Grenoble Cedex 9, France
| | - S Hattori
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, G1-17, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8502, Japan
| | - N Yoshida
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, G1-17, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8502, Japan.,Earth-Life Science Institute, Tokyo Institute of Technology, 2-12-1-IE-1 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - E Albalat
- Ecole Normale Supérieure de Lyon, CNRS and University of Lyon, 9 rue du Vercors, 69364, Lyon Cedex 7, France
| | - F Albarede
- Ecole Normale Supérieure de Lyon, CNRS and University of Lyon, 9 rue du Vercors, 69364, Lyon Cedex 7, France
| | - J Farquhar
- Department of Geology and Earth System Science Interdisciplinary Center (ESSIC), University of Maryland, College Park, MD, 20742, USA
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Kameoka T, Nakatani T, Hattori S, Takahashi S, Kuroda H. Surgical treatment and rehabilitation of fractures of amputated limbs. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.877] [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]
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12
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Schäfer CA, Uehara H, Konishi D, Hattori S, Matsukuma H, Murakami M, Shimizu S, Tokita S. Fluoride-fiber-based side-pump coupler for high-power fiber lasers at 2.8 μm. Opt Lett 2018; 43:2340-2343. [PMID: 29762587 DOI: 10.1364/ol.43.002340] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 04/18/2018] [Indexed: 06/08/2023]
Abstract
A side-pump coupler made of fluoride fibers was fabricated and tested. The tested device had a coupling efficiency of 83% and was driven with an incident pump power of up to 83.5 W, demonstrating high-power operation. Stable laser output of 15 W at a wavelength of around 2.8 μm was achieved over 1 h when using an erbium-doped double-clad fiber as the active medium. To the best of our knowledge, this is the first time a fluoride-glass-fiber-based side-pump coupler has been developed. A test with two devices demonstrated further power scalability.
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Kawahara A, Fukumitsu C, Azuma K, Taira T, Abe H, Takase Y, Murata K, Sadashima E, Hattori S, Naito Y, Akiba J. Cover Image. Cytopathology 2018. [DOI: 10.1111/cyt.12543] [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: 10/17/2022]
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14
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Kawahara A, Fukumitsu C, Azuma K, Taira T, Abe H, Takase Y, Murata K, Sadashima E, Hattori S, Naito Y, Akiba J. A Combined test using both cell sediment and supernatant cell-free DNA in pleural effusion shows increased sensitivity in detecting activating EGFR mutation in lung cancer patients. Cytopathology 2018; 29:150-155. [PMID: 29363841 DOI: 10.1111/cyt.12517] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/23/2017] [Indexed: 12/28/2022]
Abstract
INTRODUCTION The aim of this study was to examine whether a combined test using both cell sediment and supernatant cytology cell-free DNA (ccfDNA) is more useful in detecting EGFR mutation than using cell sediment DNA or supernatant ccfDNA alone in pleural effusion of lung cancer patients. METHODS A total of 74 lung adenocarcinoma patients with paired samples between primary tumour and corresponding metastatic tumour with both cell sediment and supernatant ccfDNA of pleural effusion cytology were enrolled in this study. Cell sediment and supernatant ccfDNA were analysed separately for EGFR mutations by polymerase chain reaction. RESULTS Out of 45 patients with mutant EGFR in primary tumours, EGFR mutations were detected in 23 cell sediments of corresponding metastases (sensitivity; 51.1%) and 20 supernatant ccfDNA corresponding metastases (sensitivity; 44.4%). By contrast, the combined test detected EGFR mutations in 27 corresponding metastases (sensitivity; 60.0%), and had a higher sensitivity than the cell sediment or the supernatant ccfDNA alone (P < .05). Out of 45 patients with mutant EGFR, 24, three and 18 were cytologically diagnosed as positive, atypical or negative, respectively. The detection rate in the combined test was highest (95.8%) in the positive group, and mutant EGFR was also detected in four of 18 samples (22.2%) in the negative group. CONCLUSIONS A combined test using both cell sediment DNA and supernatant ccfDNA samples increases the concordance rate of EGFR mutations between primary tumour and corresponding metastases. Our findings indicate that supernatant ccfDNA is useful even in cases where the cytological diagnosis is negative.
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Affiliation(s)
- A Kawahara
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume, Japan
| | - C Fukumitsu
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume, Japan
| | - K Azuma
- Division of Respirology, Neurology, and Rheumatology, Department of Internal Medicine, Kurume University School of Medicine, Kurume, Japan
| | - T Taira
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume, Japan
| | - H Abe
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume, Japan
| | - Y Takase
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume, Japan
| | - K Murata
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume, Japan
| | - E Sadashima
- Department of Clinical Laboratory, Tenjinkai Shin-Koga Hospital, Kurume, Japan
| | - S Hattori
- Department of Integrated Medicine, Biomedical Statistics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Y Naito
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume, Japan
| | - J Akiba
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume, Japan
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Yokota H, Mukai H, Hattori S, Yamada K, Anzai Y, Uno T. MR Imaging of the Superior Cervical Ganglion and Inferior Ganglion of the Vagus Nerve: Structures That Can Mimic Pathologic Retropharyngeal Lymph Nodes. AJNR Am J Neuroradiol 2017; 39:170-176. [PMID: 29122764 DOI: 10.3174/ajnr.a5434] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 08/28/2017] [Indexed: 01/12/2023]
Abstract
BACKGROUND AND PURPOSE The superior cervical ganglion and inferior ganglion of the vagus nerve can mimic pathologic retropharyngeal lymph nodes. We studied the cross-sectional anatomy of the superior cervical ganglion and inferior ganglion of the vagus nerve to evaluate how they can be differentiated from the retropharyngeal lymph nodes. MATERIALS AND METHODS This retrospective study consists of 2 parts. Cohort 1 concerned the signal intensity of routine neck MR imaging with 2D sequences, apparent diffusion coefficient, and contrast enhancement of the superior cervical ganglion compared with lymph nodes with or without metastasis in 30 patients. Cohort 2 used 3D neurography to assess the morphology and spatial relationships of the superior cervical ganglion, inferior ganglion of the vagus nerve, and the retropharyngeal lymph nodes in 50 other patients. RESULTS All superior cervical ganglions had homogeneously greater enhancement and lower signal on diffusion-weighted imaging than lymph nodes. Apparent diffusion coefficient values of the superior cervical ganglion (1.80 ± 0.28 × 10-3mm2/s) were significantly higher than normal and metastatic lymph nodes (0.86 ± 0.10 × 10-3mm2/s, P < .001, and 0.73 ± 0.10 × 10-3mm2/s, P < .001). Ten and 13 of 60 superior cervical ganglions were hypointense on T2-weighted images and had hyperintense spots on both T1- and T2-weighted images, respectively. The latter was considered fat tissue. The largest was the superior cervical ganglion, followed in order by the retropharyngeal lymph node and the inferior ganglion of the vagus nerve (P < .001 to P = .004). The highest at vertebral level was the retropharyngeal lymph nodes, followed, in order, by the inferior ganglion of the vagus nerve and the superior cervical ganglion (P < .001 to P = .001). The retropharyngeal lymph node, superior cervical ganglion, and inferior ganglion of the vagus nerve formed a line from anteromedial to posterolateral. CONCLUSIONS The superior cervical ganglion and the inferior ganglion of the vagus nerve can be almost always differentiated from retropharyngeal lymph nodes on MR imaging by evaluating the signal, size, and position.
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Affiliation(s)
- H Yokota
- From Diagnostic Radiology and Radiation Oncology (H.Y., H.M., S.H., T.U.), Graduate School of Medicine, Chiba University, Chiba, Japan
| | - H Mukai
- From Diagnostic Radiology and Radiation Oncology (H.Y., H.M., S.H., T.U.), Graduate School of Medicine, Chiba University, Chiba, Japan
| | - S Hattori
- From Diagnostic Radiology and Radiation Oncology (H.Y., H.M., S.H., T.U.), Graduate School of Medicine, Chiba University, Chiba, Japan
| | - K Yamada
- Department of Radiology (K.Y.), Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Y Anzai
- Department of Radiology (Y.A.), University of Utah School of Medicine Health Sciences, Salt Lake City, Utah
| | - T Uno
- From Diagnostic Radiology and Radiation Oncology (H.Y., H.M., S.H., T.U.), Graduate School of Medicine, Chiba University, Chiba, Japan
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Bautista M, Ahmedzai S, Bouzid K, Gibson R, Gumara Y, Hassan A, Hattori S, Keefe D, Kraychete D, Lee D, Tamura K, Wang J. A framework for education and advocacy for optimal cancer pain management in resource-limited settings. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx676.005] [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: 11/13/2022] Open
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Ishii N, Teye K, Fukuda S, Uehara R, Hachiya T, Koga H, Tsuchisaka A, Numata S, Ohyama B, Tateishi C, Tsuruta D, Furumura M, Hattori S, Kawakami T, Ohata C, Hashimoto T. Anti-desmocollin autoantibodies in nonclassical pemphigus. Br J Dermatol 2015; 173:59-68. [PMID: 25640111 DOI: 10.1111/bjd.13711] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/25/2015] [Indexed: 11/26/2022]
Abstract
BACKGROUND Despite the established pathogenic role of anti-desmoglein (Dsg) antibodies in classical pemphigus, the significance of autoantibodies to another desmosomal cadherin, desmocollin (Dsc) is at present unknown. No consistent immunoassay for immunoglobulin (Ig) G autoantibodies to Dscs has been developed. OBJECTIVES The aim of this study was to develop reliable assays to detect anti-Dsc autoantibodies. METHODS We expressed soluble recombinant proteins (RPs) of human Dsc1-3 in mammalian cells and examined sera of various types of pemphigus, including 79 paraneoplastic pemphigus (PNP) sera, by novel enzyme-linked immunosorbent assays (ELISAs) using the RPs. We also performed ELISAs of Dsc baculoproteins and used the complementary DNA (cDNA) transfection method, and compared the results with those of mammalian ELISAs. RESULTS Through mammalian ELISAs, IgG autoantibodies to Dsc1, Dsc2 and Dsc3 were detected in 16.5%, 36.7% and 59.5% of PNP sera, respectively, and considerable numbers of pemphigus herpetiformis (PH) and pemphigus vegetans (PVeg) sera reacted strongly with Dsc1 and Dsc3. Mammalian ELISAs were highly specific and more sensitive than baculoprotein ELISAs or the cDNA transfection method. Several Dsc-positive sera, particularly PH sera, showed no reactivity with Dsgs. The reactivity of PNP serum and PVeg serum with Dscs was not abolished by pre-absorption with Dsg RPs. CONCLUSIONS The results of these novel ELISAs indicated that IgG anti-Dsc autoantibodies were frequently detected and potentially pathogenic in nonclassical pemphigus.
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Affiliation(s)
- N Ishii
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, 67 Asahimachi, Kurume, Fukuoka, 830-0011, Japan
| | - K Teye
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, 67 Asahimachi, Kurume, Fukuoka, 830-0011, Japan
| | - S Fukuda
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, 67 Asahimachi, Kurume, Fukuoka, 830-0011, Japan
| | - R Uehara
- Intellectual Property and Clinical Development Department/Business Development Division, Medical & Biological Laboratories Co., Ltd, Nagoya, Japan
| | - T Hachiya
- Antibody Engineering Department/Manufacturing Division, Medical & Biological Laboratories Co., Ltd, Nagoya, Japan
| | - H Koga
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, 67 Asahimachi, Kurume, Fukuoka, 830-0011, Japan
| | - A Tsuchisaka
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, 67 Asahimachi, Kurume, Fukuoka, 830-0011, Japan
| | - S Numata
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, 67 Asahimachi, Kurume, Fukuoka, 830-0011, Japan
| | - B Ohyama
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, 67 Asahimachi, Kurume, Fukuoka, 830-0011, Japan
| | - C Tateishi
- Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - D Tsuruta
- Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - M Furumura
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, 67 Asahimachi, Kurume, Fukuoka, 830-0011, Japan
| | - S Hattori
- Biostatistics Center, Kurume University, Kurume, Japan
| | - T Kawakami
- Department of Dermatology, St Marianna University School of Medicine, Kawasaki, Japan
| | - C Ohata
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, 67 Asahimachi, Kurume, Fukuoka, 830-0011, Japan
| | - T Hashimoto
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, 67 Asahimachi, Kurume, Fukuoka, 830-0011, Japan
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Hayashi H, Kawabata Y, Fujii T, Hattori S, Yamamoto Y, Eiji H, Takashi S, Tajima Y. 445. Validation of POSSUM scoring system in abdominal surgery for patients with malignant diseases: A multi-institutional analysis. Eur J Surg Oncol 2014. [DOI: 10.1016/j.ejso.2014.08.433] [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: 10/24/2022] Open
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19
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Otabe Y, Hattori S, Yamatsu K. Sedentary behavior and academic performance in Japanese junior high school students. Sci Sports 2014. [DOI: 10.1016/j.scispo.2014.08.034] [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: 10/24/2022]
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20
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Azuma K, Ota K, Kawahara A, Hattori S, Iwama E, Harada T, Matsumoto K, Takayama K, Takamori S, Kage M, Hoshino T, Nakanishi Y, Okamoto I. Association of PD-L1 overexpression with activating EGFR mutations in surgically resected nonsmall-cell lung cancer. Ann Oncol 2014; 25:1935-1940. [PMID: 25009014 DOI: 10.1093/annonc/mdu242] [Citation(s) in RCA: 497] [Impact Index Per Article: 49.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Recent clinical trials have shown that immune-checkpoint blockade yields a clinical response in a subset of individuals with advanced nonsmall-cell lung cancer (NSCLC). We examined whether the expression of programmed death-ligand 1 (PD-L1) is related to clinicopathologic or prognostic factors in patients with surgically resected NSCLC. PATIENTS AND METHODS The expression of PD-L1 was evaluated by immunohistochemical analysis in 164 specimens of surgically resected NSCLC. Cell surface expression of PD-L1 in NSCLC cell lines was quantified by flow cytometry. RESULTS Expression of PD-L1 in tumor specimens was significantly higher for women than for men, for never smokers than for smokers, and for patients with adenocarcinoma than for those with squamous cell carcinoma. Multivariate analysis revealed that the presence of epidermal growth factor receptor gene (EGFR) mutations and adenocarcinoma histology were significantly associated with increased PD-L1 expression in a manner independent of other factors. Cell surface expression of PD-L1 was also significantly higher in NSCLC cell lines positive for activating EGFR mutations than in those with wild-type EGFR. The EGFR inhibitor erlotinib downregulated PD-L1 expression in the former cell lines but not in the latter, suggesting that PD-L1 expression is increased by EGFR signaling conferred by activating EGFR mutations. A high level of PD-L1 expression in resected tumor tissue was associated with a significantly shorter overall survival for NSCLC patients. CONCLUSIONS High expression of PD-L1 was associated with the presence of EGFR mutations in surgically resected NSCLC and was an independent negative prognostic factor for this disease.
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Affiliation(s)
- K Azuma
- Division of Respirology, Neurology, and Rheumatology, Department of Internal Medicine, Kurume University School of Medicine, Kurume
| | - K Ota
- Research Institute for Disease of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka
| | - A Kawahara
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume
| | - S Hattori
- Biostatistics Center, Kurume University, Kurume
| | - E Iwama
- Research Institute for Disease of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka
| | - T Harada
- Research Institute for Disease of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka
| | - K Matsumoto
- Research Institute for Disease of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka
| | - K Takayama
- Research Institute for Disease of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka
| | - S Takamori
- Department of Surgery, Kurume University School of Medicine, Kurume
| | - M Kage
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume
| | - T Hoshino
- Division of Respirology, Neurology, and Rheumatology, Department of Internal Medicine, Kurume University School of Medicine, Kurume
| | - Y Nakanishi
- Research Institute for Disease of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka; Center for Clinical and Translational Research, Kyushu University Hospital, Fukuoka, Japan
| | - I Okamoto
- Center for Clinical and Translational Research, Kyushu University Hospital, Fukuoka, Japan.
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Yamaguchi T, Kawahara A, Hattori S, Taira T, Abe H, Sanada S, Akiba J, Nishio S, Ushijima K, Kamura T, Kage M. Cytological nuclear atypia classification can predict prognosis in patients with endometrial cancer. Cytopathology 2014; 26:157-66. [DOI: 10.1111/cyt.12149] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/17/2014] [Indexed: 12/29/2022]
Affiliation(s)
- T. Yamaguchi
- Department of Diagnostic Pathology; Kurume University Hospital; Kurume Japan
| | - A. Kawahara
- Department of Diagnostic Pathology; Kurume University Hospital; Kurume Japan
| | - S. Hattori
- Biostatistics Center; Kurume University; Kurume Japan
| | - T. Taira
- Department of Diagnostic Pathology; Kurume University Hospital; Kurume Japan
| | - H. Abe
- Department of Diagnostic Pathology; Kurume University Hospital; Kurume Japan
| | - S. Sanada
- Department of Pathology; Kurume University School of Medicine; Kurume Japan
| | - J. Akiba
- Department of Pathology; Kurume University School of Medicine; Kurume Japan
| | - S. Nishio
- Department of Obstetrics and Gynecology; Kurume University School of Medicine; Kurume Japan
| | - K. Ushijima
- Department of Obstetrics and Gynecology; Kurume University School of Medicine; Kurume Japan
| | - T. Kamura
- Department of Obstetrics and Gynecology; Kurume University School of Medicine; Kurume Japan
| | - M. Kage
- Department of Diagnostic Pathology; Kurume University Hospital; Kurume Japan
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Ikegami K, Konno A, Hattori S, Matsuda C, Setou M. Severe ciliopathy-related phenotypes in mice with dysregulation of tubulin polyglutamylation. Cilia 2012. [PMCID: PMC3555832 DOI: 10.1186/2046-2530-1-s1-p90] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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23
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Hattori S, Li Q, Matsui N, Nishino H. Treadmill running combined with microdialysis can evaluate motor deficit and improvement following dopaminergic grafts in 6-OHDA lesioned rats. Restor Neurol Neurosci 2012; 6:65-72. [PMID: 21551732 DOI: 10.3233/rnn-1993-6107] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
To evaluate the physiological role of striatal dopamine (DA) during exercise and the mechanism of functional recovery mediated by grafted DAergic neurons, the locomotor ability (treadmill running) and DA turnover were investigated using treadmill running combined with in vivo microdialysis in the intact control rats, 6-hydroxydopamine (6-OHDA) lesioned rats (hemi-parkinsonian model rats) and DAergic cell grafted rats. The 3 groups of rats were trained to run on a straight treadmill at a speed of 1,800 cm/min for 20 min every day for 7 consecutive days. If the rats could not follow the speed they got electrostimulation (ES) from the grid behind the treadmill belt. The numbers of ES rats received during treadmill running were counted to quantify the locomotor ability. Control rats could keep up with the treadmill easily (0-1 ES/10 min), whereas lesioned rats could not follow the speed (80-100 ES/10 min). Most of the grafted rats received only a few ES, but a few received over 100 ES/10 min. Extracellular DA and its metabolites, dihydroxyphenyl acetic acid (DOPAC) and homovanillic acid (HVA), were measured by in vivo microdialysis and high-performance liquid chromatography (HPLC) during and after treadmill running. In control rats the basal levels of DA, DOPAC and HVA were 2.3 fmol/μl, 1,109.8 fmol/μl and 612.2 fmol/μl, respectively. They increased up to 130%, 140% and 160% by running. In 6-OHDA lesioned rats basal values of DA, DOPAC and HVA were less than 10% of controls. We did not perform microdialysis in these rats since they got too much ES during running. In grafted rats that showed good recovery in locomotor ability, DA returned to almost control level (1.9 fmol/μl), but those of DOPAC (127.8 fmol/μl) and HVA (100.2 fmol/μl) were still low. DA, DOPAC and HVA increased up to 130%, 130% and 150% by running in a similar pattern as in intact rats. These results suggest that grafted neurons can release and metabolize DA in the host striatum both tonically and phasically in relation with internal and external stimuli and also suggest that treadmill running ability is a good indicator of DA turnover in the striatum. Thus, the treadmill running test with microdialysis is useful for quantitative evaluation of motor function in grafted animals.
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Affiliation(s)
- S Hattori
- Department of Orthopedics, Nagoya City University Medical School, Mizuho-ku, Nagoya 467, Japan Department of Physiology, Nagoya City University Medical School, Mizuho-ku, Nagoya 467, Japan
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Sugiyama T, Yoneda M, Kuraishi T, Hattori S, Inoue Y, Sato H, Kai C. Measles virus selectively blind to signaling lymphocyte activation molecule as a novel oncolytic virus for breast cancer treatment. Gene Ther 2012; 20:338-47. [PMID: 22717740 DOI: 10.1038/gt.2012.44] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Oncolytic viruses hold much promise as novel therapeutic agents that can be combined with conventional therapeutic modalities. Measles virus (MV) is known to enter cells using the signaling lymphocyte activation molecule (SLAM), which is expressed on cells of the immune system. Although human breast cancer cell lines do not express SLAM, we found that a wild-type MV (HL strain) efficiently infected various breast cancer cell lines, causing cell death. Based on this finding, we used reverse genetics to generate a recombinant MV selectively unable to use SLAM (rMV-SLAMblind). The rMV-SLAMblind lacked infectivity for SLAM-positive lymphoid cells, while retaining oncolytic activity against breast cancer cells. We showed that, unlike the MV vaccine strains, rMV-SLAMblind used PVRL4 (polio virus receptor-related 4) as a receptor to infect breast cancer cells and not the ubiquitously expressed CD46. Consistent with this, rMV-SLAMblind infected CD46-positive primary normal human cells at a much-reduced level, whereas a vaccine strain of the Edmonston lineage (rMV-Edmonston) efficiently infected and killed them. The rMV-SLAMblind showed antitumor activity against human breast cancer xenografts in immunodeficient mice. The oncolytic activity of rMV-SLAMblind was significantly greater than that of rMV-Edmonston. To assess the in vivo safety, three monkeys seronegative for MV were inoculated with rMV-SLAMblind, and no clinical symptoms were documented. On the basis of these results, rMV-SLAMblind could be a promising candidate as a novel oncolytic virus for breast cancer treatment.
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Affiliation(s)
- T Sugiyama
- Laboratory Animal Research Center, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
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Gorai I, Hattori S, Tanaka Y, Iwaoki Y. Alfacalcidol-supplemented raloxifene therapy has greater bone-sparing effect than raloxifene-alone therapy in postmenopausal Japanese women with osteoporosis or osteopenia. J Bone Miner Metab 2012; 30:349-58. [PMID: 22130786 DOI: 10.1007/s00774-011-0325-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [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] [Received: 10/28/2010] [Accepted: 09/25/2011] [Indexed: 11/24/2022]
Abstract
Vitamin D insufficiency is prevalent in osteopenic and osteoporotic postmenopausal women. The persistent increase in circulating parathyroid hormone (PTH) caused by vitamin D insufficiency reduces bone density response to antiresorptive agents in these postmenopausal women. It is not well known whether administration of raloxifene might increase serum PTH secondary to the suppression of serum calcium in postmenopausal women with osteopenia or osteoporosis. We tried to assess whether raloxifene might affect serum PTH and whether the addition of alfacalcidol to raloxifene therapy could have favorable effects on bone mineral density (BMD) and bone turnover as compared to raloxifene-alone therapy in postmenopausal Japanese women with osteoporosis or osteopenia (≤2.0 SD based on young Japanese women). A total of 169 subjects were randomly assigned to groups receiving 60 mg raloxifene (R), or 1 μg alfacalcidol (D), or a combination of both (R + D) for 2 years. Serum levels of 25-hydroxyvitamin D [25(OH)D] were measured at randomization. The modified 'intention to treat' method was used. We compared the groups using a Tukey-Kramer test for changes in L- and TH-BMD and calcium metabolism when significant differences were found using one-way ANOVA. The parameters in each group during the experimental period were analyzed by means of paired t tests. Baseline 25(OH)D and i-PTH were 23.7 ng/ml and 38.4 pg/ml, respectively. At 6 months, i-PTH demonstrated a significant increase (+21.0%) in the R-group whereas significant decreases in i-PTH were observed in the D-group and combination-group (-15.9 and -8.9%, respectively). There were significant increases in L-BMD in the R + D-group (+4.1% at 1 year and +4.7% at 2 years, P < 0.0001) and in the R-group (+2.9% at 1 year and +2.8% at 2 years, P < 0.001), but the difference between the groups did not reach a significant level. Vitamin D status at randomization did not affect the subsequent BMD response in coadministration of alfacalcidol with raloxifene. Supplementation with alfacalcidol to raloxifene therapy demonstrates a greater bone-sparing effect by suppressing the secondary increment of serum PTH than when raloxifene is used alone.
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Affiliation(s)
- Itsuo Gorai
- Department of Obstetrics and Gynecology, International University of Health and Welfare Atami Hospital, Atami, Shizuoka, 413-0012, Japan.
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Takenaka M, Toh U, Seki N, Kawahara A, Hattori S, Iwakuma N, Yamaguchi R, Yano H, Shirouzu K, Kage M. 335 FOXP3 Expression in Tumor Cells Associated with the Prognosis in Breast Cancer Patients. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)70401-x] [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: 11/29/2022]
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Tsujikawa M, Nishigaki H, Yoshikawa M, Furuki R, Takahashi K, Adan-Kubo J, Shimamura Y, Urayama T, Hattori S, Sakai K, Yunoki M, Ikuta K. Variability of parvovirus B19 genotype 2 in plasma products with different compositions in the inactivation sensitivity by liquid-heating. Vox Sang 2011; 102:93-9. [PMID: 21781123 DOI: 10.1111/j.1423-0410.2011.01523.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND OBJECTIVES Our previous report showed that parvovirus B19 genotype 1 in different solutions derived from plasma preparations showed different heat-sensitivity patterns during liquid-heating. In this study, we similarly examined B19 genotype 2. MATERIALS AND METHODS Two plasma samples one containing B19 genotype 1 and the other genotype 2 DNA were used. Four process samples collected immediately before the heat treatment step in the manufacture of albumin, immunoglobulin, haptoglobin and antithrombin preparations were spiked with B19 and subsequently treated at 60°C for 10 h. A low pH immunoglobulin solution was also spiked with B19 and treated at room temperature for 14 days. Infectivity was then measured. RESULTS B19 genotype 2, similar to genotype 1, showed three patterns of inactivation: (i) a rapid inactivation in the albumin and immunoglobulin preparations, (ii) a slow inactivation in the haptoglobin preparation and (iii) only limited inactivation in the antithrombin preparation. Its sensitivity in the low pH immunoglobulin solutions also resembled that of genotype 1. CONCLUSION Both genotypes 1 and 2 of B19 varied in sensitivity to liquid-heating and low pH among different plasma preparations.
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Affiliation(s)
- M Tsujikawa
- Osaka Research Laboratory, Research and Development Division, Benesis Corporation, Osaka, Japan.
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28
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Ide H, Kikuchi E, Yasumizu Y, Hattori S, Hasegawa M, Miyajima A, Oya M, Kim SY, Song SY, Kim MS, Lee JY, Lee HM, Choi HY, Yoo NJ, Lee SH, Obara W, Tsunoda T, Yoshida K, Takata R, Togashi A, Katagiri T, Nakamura Y, Fujioka T. BASIC SCIENCE. Jpn J Clin Oncol 2011. [DOI: 10.1093/jjco/hyq253] [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: 11/14/2022] Open
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Hattori Y, Jojima T, Tomizawa A, Satoh H, Hattori S, Kasai K, Hayashi T. A glucagon-like peptide-1 (GLP-1) analogue, liraglutide, upregulates nitric oxide production and exerts anti-inflammatory action in endothelial cells. Diabetologia 2010; 53:2256-63. [PMID: 20593161 DOI: 10.1007/s00125-010-1831-8] [Citation(s) in RCA: 143] [Impact Index Per Article: 10.2] [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] [Received: 04/23/2010] [Accepted: 05/24/2010] [Indexed: 01/12/2023]
Abstract
AIMS/HYPOTHESIS Glucagon-like peptide-1 (GLP-1), a member of the proglucagon-derived peptide family, was seen to exert favourable actions on cardiovascular function in preclinical and clinical studies. The mechanisms through which GLP-1 modulates cardiovascular function are complex and incompletely understood. We thus investigated whether the GLP-1 analogue, liraglutide, which is an acylated GLP-1, has protective effects on vascular endothelial cells. METHODS Nitrite and nitrate were measured in medium with an automated nitric oxide detector. Endothelial nitric oxide synthase (eNOS) activation was assessed by evaluating the phosphorylation status of the enzyme and evaluating eNOS activity by citrulline synthesis. Nuclear factor kappaB (NF-kappaB) activation was assessed by reporter gene assay. RESULTS Liraglutide dose-dependently increased nitric oxide production in HUVECs. It also caused eNOS phosphorylation, potentiated eNOS activity and restored the cytokine-induced downregulation of eNOS (also known as NOS3) mRNA levels, which is dependent on NF-kappaB activation. We therefore examined the effect of liraglutide on TNFalpha-induced NF-kappaB activation and NF-kappaB-dependent expression of proinflammatory genes. Liraglutide dose-dependently inhibited NF-kappaB activation and TNFalpha-induced IkappaB degradation. It also reduced TNFalpha-induced MCP-1 (also known as CCL2), VCAM1, ICAM1 and E-selectin mRNA expression. Liraglutide-induced enhancement of nitric oxide production and suppression of NF-kappaB activation were attenuated by the AMP-activated protein kinase (AMPK) inhibitor compound C or AMPK (also known as PRKAA1) small interfering RNA. Indeed, liraglutide induced phosphorylation of AMPK, which occurs through a signalling pathway independent of cyclic AMP. CONCLUSIONS/INTERPRETATION Liraglutide exerts an anti-inflammatory effect on vascular endothelial cells by increasing nitric oxide production and suppressing NF-kappaB activation, partly at least through AMPK activation. These effects may explain some of the observed vasoprotective properties of liraglutide, as well as its beneficial effects on the cardiovascular system.
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Affiliation(s)
- Y Hattori
- Department of Endocrinology and Metabolism, Dokkyo University School of Medicine, Mibu, Tochigi 321-0293, Japan.
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Ishikura K, Yoshikawa N, Hattori S, Sasaki S, Iijima K, Nakanishi K, Matsuyama T, Yata N, Ando T, Honda M. Treatment with microemulsified cyclosporine in children with frequently relapsing nephrotic syndrome. Nephrol Dial Transplant 2010; 25:3956-62. [DOI: 10.1093/ndt/gfq318] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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31
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Gorai I, Tanaka Y, Hattori S, Iwaoki Y. Assessment of adherence to treatment of postmenopausal osteoporosis with raloxifene and/or alfacalcidol in postmenopausal Japanese women. J Bone Miner Metab 2010; 28:176-84. [PMID: 19657590 DOI: 10.1007/s00774-009-0112-4] [Citation(s) in RCA: 14] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2009] [Accepted: 06/22/2009] [Indexed: 10/20/2022]
Abstract
Patients who are diagnosed with osteoporosis and beginning treatment often discontinue their osteoporosis medication relatively early after the start of treatment because of their poor recognition of fracture risk and the asymptomatic nature of osteoporosis. In this study we aimed to assess adherence to treatment with 1 microg alfacalcidol (D), 60 mg raloxifene (R) or a combination of both (D + R) for 1 year in postmenopausal Japanese women with osteoporosis or osteopenia. We defined persistence of D and R as continuing to take tablets for more than 7 of any 14 days immediately before the 1-year visit. A total of 137 subjects aged 49-81 years [64.9 +/- 7.0 years, 16.0 +/- 12.7 years since menopause (YSM)] were randomly assigned to each treatment group. The proportions persisting with each treatment group at 1 year were 61.4, 65.3, 55.1% for D, R and D + R groups, respectively whereas the compliance to each therapy as judged by the medical possession ratio (MPR) at 1 year were 77.5, 93.8, 78.4%, respectively. There were no significant differences in persistence, compliance and the number of subjects who discontinued treatment due to adverse events among each group. We found significant inverse correlations in percent changes at 1 year between compliance and serum BAP in R and D + R groups or urinary (u-) CTX in the R group. The changes in the level of serum BAP and u-CTX were significantly higher in high-compliance patients (MPR > 80%) treated with raloxifene alone or concomitantly with alfacalcidol compared to those in low-compliance patients.
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Affiliation(s)
- Itsuo Gorai
- Department of Obstetrics and Gynecology, International University of Health and Welfare Atami Hospital, 13-1 Higashi-Kaigancho, Atami, Shizuoka, 413-0012, Japan.
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Fujita H, Ozawa S, Kuwano H, Ueda Y, Hattori S, Yanagawa T. Esophagectomy for cancer: clinical concerns support centralizing operations within the larger hospitals. Dis Esophagus 2010; 23:145-52. [PMID: 19515188 DOI: 10.1111/j.1442-2050.2009.00986.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Esophagectomy needs experienced surgical techniques and a well-trained perioperative care team. There are now many reports that the mortality rate after esophagectomy is higher in those hospitals with a low volume of esophagectomy and/or low surgeon's volume. The purpose of this study is to decide the respective numbers of esophagectomy operations per year to define low-volume and high-volume hospitals in Japan. If medical policy aims to further reduce mortality and morbidity associated with esophagectomy, then esophagectomy operations should be further centralized, away from low-volume hospitals, into high-volume hospitals. The Japanese Association for Thoracic Surgery has accumulated the surgical outcomes from 31 380 esophagectomy operations, registered from 709 institutes during the period from 2001 to 2006. These institutes are here classified into six groups according to the number of esophagectomy operations per year as 4 or less, 5-9, 10-19, 20-39, 40-79, and 80 or more. Using a statistical model-selection procedure by information criteria, these six groups are then classified into three categories as low-volume, medium-volume, and as high-volume hospitals. Among the 31 380 patients registered, overall, 390 patients (1.2%) died within 30 days, and 1187 patients (3.8%) died during the primary hospital stay. The odds ratio of the greatest volume group to the minimum volume group was 0.307 for the 30-day mortality rate, and 0.288 for the in-hospital mortality rate. For both the 30-day mortality rate and the in-hospital mortality rate, a hospital with less than five esophagectomy operations per year was classified as a low-volume hospital. A hospital with 40 or more esophagectomy operations per year was classified as a high-volume hospital. Concerning the number of esophagectomy operations performed per year in Japan, low-volume hospitals are defined as those where esophagectomy is performed less than five times per year, and high-volume hospitals are defined as those where esophagectomy is performed 40 or more times per year. If medical policy in Japan aims to further decrease the mortality after esophagectomy, then esophagectomy operations should be limited in these identified low-volume hospitals.
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Affiliation(s)
- H Fujita
- Department of Surgery, School of Medicine, Kurume University, Kurume, Fukuoka 830-0011, Japan.
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Suda M, Kubota F, Aihara Y, Hiraoka T, Aoyama Y, Hattori S, Fukuda M, Mikuni M. A case of lithium intoxication with periodic sharp waves. Pharmacopsychiatry 2009; 42:122-3. [PMID: 19452381 DOI: 10.1055/s-0028-1112131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Takeshima N, Miyakawa H, Okuda K, Hattori S, Hagiwara S, Takatani J, Noguchi T. Evaluation of the therapeutic results of epiduroscopic adhesiolysis for failed back surgery syndrome. Br J Anaesth 2009; 102:400-7. [PMID: 19164308 DOI: 10.1093/bja/aen383] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND No data for patients with failed back surgery syndrome (FBSS) based on the location of adhesions separated by epiduroscopic adhesiolysis have been reported. METHODS We performed epiduroscopic adhesiolysis on 28 FBSS patients to examine the impact of differences in the locations of the separated regions on the treatment results. We performed fluoroscopic imaging through the sacral hiatus to assess the condition of adhesions in the epidural space during the post-adhesiolysis observation period. RESULTS In patients in whom only the epidural space was separated by adhesiolysis, there was a significant improvement in the Roland-Morris disability questionnaire (RDQ) score until 12 weeks after adhesiolysis, but the score gradually returned to the preoperative value thereafter. Among patients in whom the nerve root responsible for radicular pain was separated, there was a long-term improvement in the RDQ, Oswestry disability index 2.0 (ODI), and Japanese Orthopedic Association Assessment of Treatment (JOA) scores. Among patients in whom both the epidural space and the nerve root responsible for pain were separated, there was a 12 week improvement in the RDQ score and 24 week improvements in the ODI and JOA scores. CONCLUSIONS Progressive epidural imaging after adhesiolysis suggested that pain was caused by re-adhesion around the nerve root. Since re-adhesion of the nerve root required some time, the effect of adhesiolysis was maintained for extended periods in these cases. We suggest that epiduroscopic adhesiolysis is an effective therapy for FBSS patients, and that adhesiolysis of the nerve root may exhibit the long-term (24 weeks) efficacy in patients with pain.
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Affiliation(s)
- N Takeshima
- Oita University Faculty of Medicine, Department of Anesthesiology and Intensive Care Medicine, 1-1 Idaigaoka, Hasama, Oita 879-5593, Japan.
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Kawahara A, Akagi Y, Hattori S, Mizobe T, Shirouzu K, Ono M, Yanagawa T, Kuwano M, Kage M. Higher expression of deoxyuridine triphosphatase (dUTPase) may predict the metastasis potential of colorectal cancer. J Clin Pathol 2008; 62:364-9. [PMID: 19052026 PMCID: PMC2656677 DOI: 10.1136/jcp.2008.060004] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Aims: 5-Fluorouracil (5-FU) is one of the most widely used anticancer drugs; however, the activity of 5-FU is determined by the presence of several enzymes that limit its activation or degradation, and these include dihydropyrimidine dehydrogenase (DPD), orotate phosphoribosyl transferase (OPRT), thymidylate synthase (TS), thymidine kinase (TK), thymidine phosphorylase (TP) and deoxyuridine triphosphatase (dUTPase). The aim of this study was to compare the expression levels of these enzymes between the primary colorectal cancer of patients with and without distant metastases. Furthermore, there was a comparison of these expression levels between the primary tumour and the corresponding metastasis. Methods: Of 55 patients with colorectal cancer, 20 had no metastasis and the other 35 had distant metastasis. A strong expression was classified as positive, while weak to moderate or no expression was negative by immunohistochemistry. Results: Of the six 5-FU-related enzymes, the numbers of patients with expression of dUTPase (54% versus 15%; p = 0.005), TK (26% versus 0%; p = 0.019) and DPD (17% versus 45%; p = 0.033) were significantly different in those with primary tumours with metastasis compared with those with non-metastasis, respectively. The altered expression of OPRT (34.3%), TS (40.0%) and dUTPase (42.9%) was significantly greater from primary to metastasis among the 35 patients with metastasis. By contrast, the expression of OPRT, TS and dUTPase was decreased in 6, 5 and 7 patients, respectively, in metastatic sites. Conclusions: From this comparative study of the six 5-FU-related enzymes in colorectal cancer, the expression of dUTPase was most significantly different between primary tumours and their corresponding metastatic tumour. It is suggested that dUTPase may be a predictive biomarker for the metastatic potential of colorectal cancer.
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Affiliation(s)
- A Kawahara
- Department of Diagnostic Pathology, Kurume University Hospital, Japan.
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Yunoki M, Yamamoto S, Tanaka H, Nishigaki H, Tanaka Y, Nishida A, Adan-Kubo J, Tsujikawa M, Hattori S, Urayama T, Yoshikawa M, Yamamoto I, Hagiwara K, Ikuta K. Extent of hepatitis E virus elimination is affected by stabilizers present in plasma products and pore size of nanofilters. Vox Sang 2008; 95:94-100. [PMID: 18714441 DOI: 10.1111/j.1423-0410.2008.01078.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND AND OBJECTIVE To investigate the physico-chemical properties of hepatitis E virus (HEV) with regard to inactivation/removal, we have studied four isolates with respect to sensitivity to heat during liquid/dry-heating as well as removal by nanofiltration. MATERIALS AND METHODS Hepatitis E virus in an albumin solution or phosphate-buffered saline (PBS) was liquid-heated at 60 degrees C for a preset time. HEV in a freeze-dried fibrinogen containing stabilizers was also dry-heated at 60 or 80 degrees C for a preset time. In addition, to clarify the removal of HEV, the purified virus in PBS was filtered using several types of virus-removal filter (nanofilters) that have different pore sizes. HEV infectivity or genome equivalents before and after the treatments were assayed by a semiquantitative cell-based infectivity assay or quantitative polymerase chain reaction assay, respectively. RESULTS Hepatitis E virus isolates in albumin solutions were inactivated slowly at 60 degrees C for 5 h and the resultant log reduction factor (LRF) was from 1.0 to > or = 2.2, whereas the virus in PBS was inactivated quickly to below the detection limit and the LRF was > or = 2.4 to > or = 3.7. The virus in a freeze dried fibrinogen containing trisodium citrate dihydrate and l-arginine hydrochloride as stabilizers was inactivated slowly and the LRF was 2.0 and 3.0, respectively, of the 72 h at 60 degrees C, but inactivated to below the detection limit within 24 h at 80 degrees C with an LRF of > or = 4.0. The virus in PBS was also confirmed as to be approximately 35 nm in diameter by nanofiltration. These results are useful for evaluating viral safety against HEV contamination in blood products. CONCLUSION The sensitivity of HEV to heat was shown to vary greatly depending on the heating conditions. On the other hand, the HEV particles were completely removed using 20-nm nanofilters. However, each inactivation/removal step should be carefully evaluated with respect to the HEV inactivation/removal capacity, which may be influenced by processing conditions such as the stabilizers used for blood products.
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Affiliation(s)
- M Yunoki
- Infectious Pathogen Research Group, Hirakata Research Laboratory, Research & Development Division, Benesis Corporation, Hirakata, Osaka, Japan.
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Yano T, Muto M, Hattori S, Minashi K, Onozawa M, Nihei K, Ishikura S, Ohtsu A, Yoshida S. Long-term results of salvage endoscopic mucosal resection in patients with local failure after definitive chemoradiotherapy for esophageal squamous cell carcinoma. Endoscopy 2008; 40:717-21. [PMID: 18773340 DOI: 10.1055/s-2008-1077480] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND AND STUDY AIMS Local failure after definitive chemoradiotherapy (CRT) in patients with esophageal cancer remains one of the major problems in finding a cure. Endoscopic mucosal resection (EMR) is one treatment option when failure lesions are superficial. However, there are no relevant long-term survival data. The aim of this study was to clarify the long-term survival of salvage EMR. PATIENTS AND METHODS Between January 1998 and March 2004, 289 patients with esophageal squamous cell carcinoma were treated with definitive CRT at the National Cancer Center Hospital East, Japan. Of these 289 patients, 21 patients with local failure without lymph-node or distant metastases were treated with salvage EMR. The technique of salvage EMR involved a strip biopsy method. We retrospectively analyzed the long-term survival data for the patients who underwent salvage EMR. RESULTS At a median follow-up period of 54 months (range, 16-108 months), eight of 21 patients (38%) were alive with no recurrence and two patients had died from another disease but with no recurrence of esophageal cancer. Local recurrence after EMR was detected in four patients, with local and lymph-node recurrence in two patients, and lymph-node and/or distant metastases in five patients. The 5-year survival rate from the initiation of salvage EMR was 49.1%. There were no severe complications associated with EMR. CONCLUSION EMR is one of the curative salvage treatment options for local failure after definitive CRT, if the failure lesion is superficial and there are no lymph-node or distant metastases.
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Affiliation(s)
- T Yano
- Division of Digestive Endoscopy and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan.
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Ishikura K, Ikeda M, Hattori S, Yoshikawa N, Sasaki S, Iijima K, Nakanishi K, Yata N, Honda M. Effective and safe treatment with cyclosporine in nephrotic children: A prospective, randomized multicenter trial. Kidney Int 2008; 73:1167-73. [DOI: 10.1038/ki.2008.24] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Kodama A, Yanai T, Yomemaru K, Sakai H, Masegi T, Yamada S, Fukushi H, Kuraishi T, Hattori S, Kai C. Acute neuropathogenicity with experimental infection of equine herpesvirus 9 in common marmosets (Callithrix jacchus). J Med Primatol 2008; 36:335-42. [PMID: 17976037 DOI: 10.1111/j.1600-0684.2007.00220.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Equine herpesvirus 9 (EHV-9) is a new neurotropic equine herpesvirus which induced encephalitis in a variety of animals. However, there was no information on the susceptibility of EHV-9 in primates. METHODS To assess the infectivity of EHV-9, four common marmosets (Callithrix jacchus) were inoculated by the nasal route with 10(6) plaque-forming units of EHV-9. RESULTS AND CONCLUSIONS All of the inoculated animals exhibited various neurological signs progressing to collapse. Histologically, the affected animals had severe encephalitis characterized by neuronal degeneration and necrosis with intranuclear inclusion bodies, which extended from the olfactory bulb to the rhinencephalon and piriform lobe. Immunohistochemistry revealed EHV-9 antigens in degenerating neuronal cells. The nasal cavity had severe necrotizing rhinitis with prominent intra-nuclear inclusion bodies in the olfactory mucosa. These findings indicate that the marmosets are susceptible to EHV-9.
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Affiliation(s)
- A Kodama
- Department of Veterinary Pathology, Gifu University, Gifu, Japan
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40
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Seki C, Tokunaga M, Hattori S, Shidahara M, Nakao R, Maeda J, Toyama H, Irie T, Higuchi M, Suhara T, Kanno I, Kimura Y. Quantification of 11C-PIB kinetics in mouse brain using metabolite-corrected arterial input function. Neuroimage 2008. [DOI: 10.1016/j.neuroimage.2008.04.206] [Citation(s) in RCA: 1] [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: 10/21/2022] Open
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Hashimoto R, Hashimoto H, Shintani N, Chiba S, Hattori S, Okada T, Nakajima M, Tanaka K, Kawagishi N, Nemoto K, Mori T, Ohnishi T, Noguchi H, Hori H, Suzuki T, Iwata N, Ozaki N, Nakabayashi T, Saitoh O, Kosuga A, Tatsumi M, Kamijima K, Weinberger DR, Kunugi H, Baba A. Pituitary adenylate cyclase-activating polypeptide is associated with schizophrenia. Mol Psychiatry 2007; 12:1026-32. [PMID: 17387318 DOI: 10.1038/sj.mp.4001982] [Citation(s) in RCA: 120] [Impact Index Per Article: 7.1] [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: 11/09/2022]
Abstract
Pituitary adenylate cyclase-activating polypeptide (PACAP, ADCYAP1: adenylate cyclase-activating polypeptide 1), a neuropeptide with neurotransmission modulating activity, is a promising schizophrenia candidate gene. Here, we provide evidence that genetic variants of the genes encoding PACAP and its receptor, PAC1, are associated with schizophrenia. We studied the effects of the associated polymorphism in the PACAP gene on neurobiological traits related to risk for schizophrenia. This allele of the PACAP gene, which is overrepresented in schizophrenia patients, was associated with reduced hippocampal volume and poorer memory performance. Abnormal behaviors in PACAP knockout mice, including elevated locomotor activity and deficits in prepulse inhibition of the startle response, were reversed by treatment with an atypical antipsychotic, risperidone. These convergent data suggest that alterations in PACAP signaling might contribute to the pathogenesis of schizophrenia.
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Affiliation(s)
- R Hashimoto
- The Osaka-Hamamatsu Joint Research Center for Child Mental Development, Osaka University Graduate School of Medicine, Yamadaoka, Suita, Osaka, Japan.
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Tachibana M, Tonomoto Y, Hyakudomi R, Hyakudomi M, Hattori S, Ueda S, Kinugasa S, Yoshimura H. Expression and prognostic significance of EFNB2 and EphB4 genes in patients with oesophageal squamous cell carcinoma. Dig Liver Dis 2007; 39:725-32. [PMID: 17611172 DOI: 10.1016/j.dld.2007.05.013] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [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] [Received: 11/29/2006] [Revised: 05/12/2007] [Accepted: 05/14/2007] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Tyrosine kinases and its receptors play important roles in growth, migration, and invasion of malignant cells. Among those, there are only few reports examining the expression pattern of Eph/ephrin signalling system in oesophageal carcinoma. The prognostic importance of ephrin-B2 ligand (EFNB2) and its receptor EphB4, and its correlation with clinicopathologic characteristics are yet to be delineated in patients with oesophageal carcinoma. MATERIALS AND METHODS EFNB2 gene and EphB4 receptor gene were examined of mRNA specimens in 61 patients with oesophageal squamous cell carcinoma using reverse-transcriptase polymerase chain reaction. EFNB2 protein was selectively examined using an immunohistochemical analysis. RESULTS EFNB2 mRNA expression was detected in 38 (62.3%) and EphB4 expression was found in 44 (72.1%) out of 61 cancer tissues analysed. There was a statistically significant correlation between EFNB2 expression and number of lymph node metastasis (P<0.05), and a trend toward statistical significance for correlation between EFNB2 expression and American Joint Committee on Cancer Classification Stage (P<0.1), indicating that EFNB2 expression was up-regulated by advancement of the disease process. EFNB2 protein was strongly expressed in tumour with high mRNA EFNB2 expression and was weakly expressed in tumour with low mRNA expression in some representative tumours. The 5-year overall survival rate (23%) of patients with positive EFNB2 gene expression was significantly worse than 55% of negative expression (P<0.05). The results of multivariate analysis of prognosticators for survival showed that positive EFNB2 gene expression (P<0.01) and number of lymph node metastasis (P<0.05) were identified as significant factors indicative of a poorer survival. CONCLUSIONS EFNB2 gene expression may be a biological marker and a useful prognostic indicator in patients with oesophageal squamous cell carcinoma.
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MESH Headings
- Aged
- Aged, 80 and over
- Biomarkers, Tumor/biosynthesis
- Biomarkers, Tumor/genetics
- Carcinoma, Squamous Cell/genetics
- Carcinoma, Squamous Cell/mortality
- Carcinoma, Squamous Cell/pathology
- Ephrin-B2/biosynthesis
- Ephrin-B2/genetics
- Esophageal Neoplasms/genetics
- Esophageal Neoplasms/mortality
- Esophageal Neoplasms/pathology
- Female
- Follow-Up Studies
- Gene Expression Regulation, Neoplastic
- Humans
- Immunohistochemistry
- Intestinal Mucosa/metabolism
- Intestinal Mucosa/pathology
- Japan/epidemiology
- Male
- Middle Aged
- Neoplasm Staging
- Prognosis
- RNA, Neoplasm/genetics
- Receptor, EphB4/biosynthesis
- Receptor, EphB4/genetics
- Retrospective Studies
- Reverse Transcriptase Polymerase Chain Reaction
- Survival Rate/trends
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Affiliation(s)
- M Tachibana
- Digestive and General Surgery, Department of Surgery, Faculty of Medicine, Shimane University, Izumo 693-8501, Shimane, Japan.
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Hattori S, Yunoki M, Tsujikawa M, Urayama T, Tachibana Y, Yamamoto I, Yamamoto S, Ikuta K. Variability of parvovirus B19 to inactivation by liquid heating in plasma products. Vox Sang 2007; 92:121-4. [PMID: 17298573 DOI: 10.1111/j.1423-0410.2006.00879.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [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: 11/28/2022]
Abstract
BACKGROUND AND OBJECTIVES Previously, we reported that although human parvovirus B19 in albumin and intravenous immunoglobulin preparations was rapidly inactivated during liquid heating, in contrast to other parvoviruses such as canine parvovirus, sensitivity to heat was highly dependent on the composition of the solution. In this study, we aimed to further elucidate the sensitivity to heat of B19 in haptoglobin and antithrombin (previously named antithrombin III) preparations during liquid heating. MATERIALS AND METHODS Two different solutions collected immediately before heat treatment of haptoglobin and antithrombin preparations were spiked with B19 and subsequently treated at 60 degrees C for 10 h. B19 DNA-positive, anti-B19 IgG/IgM-negative plasma was used as a source of B19. The residual infectivity in each sample was measured using a B19 cell-based infectivity assay with an mRNA polymerase chain reaction. RESULTS B19 in different plasma preparations showed different heat-sensitivity patterns during liquid heating: (i) slow inactivation in haptoglobin preparations, and (ii) only limited inactivation in antithrombin preparations. The kinetics of inactivation was greatly different from that in our previous studies in which the virus was shown to be rapidly inactivated in albumin and intravenous immunoglobulin preparations. CONCLUSION B19 has unique properties in terms of heat sensitivity, depending on the composition of the solution during liquid heating. This finding may indicate the need for caution when interpreting the sensitivity of B19 to heat.
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Affiliation(s)
- S Hattori
- Infectious Pathogen Research Group, Hirakata Research Laboratory, Research & Development Division, Benesis Corporation, 2-25-1 Shodai-Ohtani, Hirakata, Osaka 573-1153, Japan
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Takahashi K, Kobayashi Y, Hattori S, Kurahashi T, Tanaka K, Sugiyama T, Kondo A, Hirasawa T, Muramatsu T, Mikami M. 428 POSTER Operation or chemotherapy? With reference to primary treatment for advanced ovarian cancer. Eur J Surg Oncol 2006. [DOI: 10.1016/s0748-7983(06)70863-0] [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: 11/17/2022] Open
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Chiba S, Hashimoto R, Hattori S, Yohda M, Lipska B, Weinberger DR, Kunugi H. Effect of antipsychotic drugs on DISC1 and dysbindin expression in mouse frontal cortex and hippocampus. J Neural Transm (Vienna) 2006; 113:1337-46. [PMID: 16463116 DOI: 10.1007/s00702-005-0414-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [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: 08/12/2005] [Accepted: 11/01/2005] [Indexed: 10/25/2022]
Abstract
Altered expression of Disrupted-In-Schizophrenia-1 (DISC1) and dysbindin (DTNBP1), susceptibility genes for schizophrenia, in schizophrenic brain has been reported; however, the possible effect of antipsychotics on the expression levels of these genes has not yet been studied. We measured the mRNA expression levels of these genes in frontal cortex and hippocampus of mice chronically treated with typical and atypical antipsychotics by a real-time quantitative RT-PCR method. We found that atypical antipsychotics, olanzapine and risperidone, in a clinically relevant dose increased DISC1 expression levels in frontal cortex, while a typical antipsychotic, haloperidol, did not. No significant effect on dysbindin expression levels was observed in either brain region. These data suggest that prior evidence of decreased expression of dysbindin in postmortem brain of schizophrenics is not likely to be a simple artifact of antemortem drug treatment. Our results also suggest a potential role of DISC1 in the therapeutic mechanisms of certain atypical antipsychotics.
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Affiliation(s)
- S Chiba
- Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Japan
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Ito S, Ito Y, Senga T, Hattori S, Matsuo S, Hamaguchi M. v-Src requires Ras signaling for the suppression of gap junctional intercellular communication. Oncogene 2005; 25:2420-4. [PMID: 16301992 DOI: 10.1038/sj.onc.1209263] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [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: 01/18/2023]
Abstract
Cell transformation by v-Src causes suppression of gap junctional intercellular communication (GJIC). Although tyrosine phosphorylation of connexin43 (Cx43), a gap junctional component, appears to be necessary for the suppression, involvement of other signaling remains unclear. We investigated the role of Ras signaling in the suppression of GJIC by v-Src. Conditional expression of either S17N Ras or mtGap1m dramatically recovered GJIC in v-Src-transformed cells. Although expression of S17N Ras or mtGap1m substantially decreased the levels of active Ras, tyrosine phosphorylation of cellular proteins including Cx43 remained unchanged. Similarly, treatment of v-Src-transfomed cells with a Ras farnesyltransferase inhibitor, manumycin A, restored GJIC, whereas tyrosine phosphorylation of Cx43 remained unchanged. Thus, these results strongly suggest that, in addition to Cx43 phosphorylation, constitutive activation of Ras signaling is required for the suppression of GJIC by v-Src.
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Affiliation(s)
- S Ito
- Division of Cancer Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Hattori S, Luo H, Shoun H, Kamagata Y. Involvement of formate as an interspecies electron carrier in a syntrophic acetate-oxidizing anaerobic microorganism in coculture with methanogens. J Biosci Bioeng 2005; 91:294-8. [PMID: 16232992 DOI: 10.1263/jbb.91.294] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2000] [Accepted: 12/20/2000] [Indexed: 11/17/2022]
Abstract
To determine whether formate is involved in interspecies electron transfer between substrate-oxidizing bacteria and hydrogenotrophic microorganisms under anaerobic conditions, a syntrophic acetate-oxidizing bacterium Thermacetogenium phaeum strain PB was cocultured either with a formate /H2-utilizing methanogen strain TM (designated as PB/TM coculture), or an H2-utilizing methanogen strain deltaH (designated as PB/deltaH coculture). Acetate oxidation and subsequent methanogenesis in PB/TM coculture were found to be significantly faster than in PB/deltaH coculture. Formate dehydrogenase and hydrogenase were both detected in strains PB and TM. H2 partial pressures in the PB/TM coculture were kept lower (20 to 40 Pa) than those of the PB/deltaH coculture (40 to 60 Pa) during the exponential growth phase. Formate was also detected in both PB/TM and PB/deltaH cocultures, and the concentration of formate was maintained at a lower level in the PB/TM coculture (5 to 9 microM) than in the PB/deltaH coculture. Thermodynamic calculations revealed that the concentrations of both H2 and formate severely affect the syntrophic oxidation of acetate. These results strongly indicate that not only H2 but also formate may be involved in interspecies electron transfer.
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Affiliation(s)
- S Hattori
- National Institute of Bioscience and Human-Technology, Agency of Industrial Science and Technology, 1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan
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48
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Adachi K, Hashimoto T, Komazawa Y, Mihara T, Furuta K, Fujishiro H, Ishihara S, Amano Y, Hattori S, Kinoshita Y. Helicobacter pylori infection influences symptomatic response to anti-secretory therapy in patients with GORD--crossover comparative study with famotidine and low-dose lansoprazole. Dig Liver Dis 2005; 37:485-90. [PMID: 15975534 DOI: 10.1016/j.dld.2004.12.016] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2004] [Accepted: 12/13/2004] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIM Helicobacter pylori infection was reported to affect gastric acid secretion. We investigated the heartburn symptoms of patients with gastro-oesophageal reflux disease during sequential treatment with 40 mg of famotidine or 15 mg of lansoprazole to clarify whether H. pylori infection influences symptomatic response to anti-secretory therapy. SUBJECTS AND METHODS The subjects were 33 gastro-oesophageal reflux disease patients, who had already been treated with a full dose of H2 receptor antagonist. First, famotidine at 20 mg b.i.d. was administered to the patients for 8 weeks. Second, famotidine was replaced with 15 mg of lansoprazole once in the morning for 8 weeks. Finally, 20 mg of famotidine was administered b.i.d. for 8 weeks instead of lansoprazole. Gastro-oesophageal reflux disease symptoms were assessed using an original visual analogue scale. RESULTS The sequential symptomatic responses to famotidine and lansoprazole administration indicated that gastro-oesophageal reflux disease symptoms of patients during low-dose lansoprazole treatment were significantly less than those during famotidine treatment. Remission of symptoms was obtained significantly more often by famotidine therapy in patients with H. pylori infection than in patients without H. pylori infection. CONCLUSION Low-dose lansoprazole is more effective than full-dose famotidine for the control of symptoms in patients with gastro-oesophageal reflux disease, and H. pylori infection influences the symptomatic response to H2 receptor antagonists.
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Affiliation(s)
- K Adachi
- Department of Gastroenterology and Hepatology, Shimane University, School of Medicine, Izumo-shi, Japan.
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Muto M, Hattori S, Yano T, Minashi K, Hamamoto Y, Mera K, Doi T, Ohtsu A, Yoshida S. Endoscopic salvage treatment for local failure after definitive chemoradiotherapy (CRT) for esophageal cancer (EC). J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.4051] [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: 11/20/2022] Open
Affiliation(s)
- M. Muto
- National Cancer Ctr Hosp East, Kashiwa, Japan
| | - S. Hattori
- National Cancer Ctr Hosp East, Kashiwa, Japan
| | - T. Yano
- National Cancer Ctr Hosp East, Kashiwa, Japan
| | - K. Minashi
- National Cancer Ctr Hosp East, Kashiwa, Japan
| | - Y. Hamamoto
- National Cancer Ctr Hosp East, Kashiwa, Japan
| | - K. Mera
- National Cancer Ctr Hosp East, Kashiwa, Japan
| | - T. Doi
- National Cancer Ctr Hosp East, Kashiwa, Japan
| | - A. Ohtsu
- National Cancer Ctr Hosp East, Kashiwa, Japan
| | - S. Yoshida
- National Cancer Ctr Hosp East, Kashiwa, Japan
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50
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Hattori Y, Akimoto K, Gross SS, Hattori S, Kasai K. Angiotensin-II-induced oxidative stress elicits hypoadiponectinaemia in rats. Diabetologia 2005; 48:1066-74. [PMID: 15864528 DOI: 10.1007/s00125-005-1766-7] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.6] [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] [Received: 11/09/2004] [Accepted: 02/08/2005] [Indexed: 12/17/2022]
Abstract
AIMS/HYPOTHESIS Hypertension, endothelial dysfunction and insulin resistance are associated conditions that share oxidative stress and vascular inflammation as common features. Adiponectin is an abundant plasma adipokine that plays a physiological role in modulating lipid metabolism and exerts a potent anti-inflammatory activity. We hypothesised that adiponectin levels decrease in response to oxidative stress and that this may promote the development of hypertension, endothelial dysfunction and insulin resistance. METHODS Rats were infused with angiotensin II (AngII) or its vehicle, either alone or in combination with tempo1 (4-hydroxy-2,2,6,6-tetramethyl piperidinoxyl), a membrane-permeable metal-independent superoxide dismutase mimetic, or tetrahydrobiopterin (BH4), one of the most potent naturally occurring reducing agents and an essential cofactor for nitric oxide synthase activity. Heart rate, systolic blood pressure, body weight and serum levels of adiponectin were measured on day 7 of treatment, and then the animals were killed. Vessel tone and superoxide production were measured ex vivo in thoracic vascular rings. The expression of adiponectin mRNA in adipose tissue was assessed by Northern blotting, and in 3T3-L1 adipocytes exposed to H2O2 by real-time PCR. The expression of NAD(P)H oxidase subunit mRNAs in the rats was assessed by RT-PCR and real-time PCR. RESULTS Hypertension and endothelial dysfunction were induced in rats by infusion of AngII and reversed by administration of tempol. Plasma concentrations of adiponectin and adipose tissue levels of adiponectin mRNA were decreased in AngII-infused rats, and this effect was prevented by cotreatment with tempol or BH4. The production of superoxide anions (O2-) was significantly increased in the aortae of AngII-treated rats, and this increase was prevented by the administration of tempol or BH4. Levels of mRNAs that encode NAD(P)H oxidase components, including p22phox, gp91phox, p47phox and Rac1, were similarly increased in adipose tissue, aortae and hearts of AngII-infused rats. Cotreatment of rats with tempol or BH4 reversed AngII-induced increases in NAD(P)H oxidase subunit mRNAs. Fully differentiated 3T3-L1 adipocytes, also exhibited diminished adiponectin mRNA levels when exposed to low concentrations of H2O2. CONCLUSIONS/INTERPRETATION Our results demonstrate that AngII-induced oxidative stress and endothelial dysfunction are accompanied by a decrease in adiponectin gene expression. Since antioxidants were observed to prevent the actions of AngII, and H2O2 on its own suppressed adiponectin expression, we conclude that adiponectin gene expression is negatively modulated by oxidative stress. Plasma adiponectin levels may provide a useful indicator of oxidative stress in vivo, and suppressed levels may contribute to the proinflammatory and metabolic derangements associated with type 2 diabetes, coronary artery disease and the metabolic syndrome.
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Affiliation(s)
- Y Hattori
- Department of Endocrinology and Metabolism, Dokkyo University School of Medicine, Mibu, Tochigi, 321-0293, Japan.
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