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Saiin K, Takenaka S, Nagai T, Takahashi A, Mizuguchi Y, Konishi T, Anzai T, Hotta D, Kamigaki M, Yamazaki S, Fujita T, Yamashita T, Kawahatsu K, Suzuki T, Nozaki Y, Sakurada T, Takenaka T, Igarashi Y, Makino T. Impact of COVID-19 pandemic on emergency medical system and management strategies in patients with acute coronary syndrome. Sci Rep 2023; 13:5120. [PMID: 36991026 PMCID: PMC10052218 DOI: 10.1038/s41598-023-32223-1] [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] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 03/24/2023] [Indexed: 03/31/2023] Open
Abstract
The global coronavirus disease-2019 (COVID-19) pandemic is associated with reduced rate of percutaneous coronary intervention (PCI). However, there were a few data showing how emergency medical system (EMS) and management strategies for acute coronary syndrome (ACS) changed during the pandemic. We sought to clarify changes on characteristics, treatments, and in-hospital mortality of patients with ACS transported via EMS between pre- and post-pandemic. We examined consecutive 656 patients with ACS admitted to Sapporo City ACS Network Hospitals between June 2018 and November 2021. The patients were divided into pre- and post-pandemic groups. The number of ACS hospitalizations declined significantly during the pandemic (proportional reduction 66%, coefficient -0.34, 95% CI -0.50 to -0.18, p < 0.001). The median time from an EMS call to hospital was significantly longer in post-pandemic group than in pre-pandemic group (32 [26-39] vs. 29 [25-36] min, p = 0.008). There were no significant differences in the proportion of patients with ACS receiving PCI, and in-hospital mortality between the groups. The COVID-19 pandemic had a significant impact on EMS and management in patients with ACS. Although a significant decline was observed in ACS hospitalizations, the proportion of patients with ACS receiving emergency PCI remained during the pandemic.
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Affiliation(s)
- Kohei Saiin
- Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Sakae Takenaka
- Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Toshiyuki Nagai
- Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan.
| | - Akinori Takahashi
- Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Yoshifumi Mizuguchi
- Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Takao Konishi
- Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Toshihisa Anzai
- Department of Cardiovascular Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Daisuke Hotta
- Department of Cardiovascular Medicine, Hokkaido Cardiovascular Hospital, Sapporo, Japan
| | - Mitsunori Kamigaki
- Department of Cardiovascular Medicine, KKR Sapporo Medical Center, Sapporo, Japan
| | - Seiji Yamazaki
- Department of Cardiovascular Medicine, Sapporo Higashi Tokusyukai Hospital, Sapporo, Japan
| | - Tsutomu Fujita
- Department of Cardiovascular Medicine, Sapporo Cardiovascular Center, Sapporo, Japan
| | - Takehiro Yamashita
- Department of Cardiovascular Medicine, Hokkaido Ohno Memorial Hospital, Sapporo, Japan
| | - Kandoh Kawahatsu
- Department of Cardiovascular Medicine, Teine Keijinnkai Hospital, Sapporo, Japan
| | - Takashi Suzuki
- Department of Cardiovascular Medicine, Kin-Ikyo Central Hospital, Sapporo, Japan
| | - Yoichi Nozaki
- Department of Cardiovascular Medicine, Hokko Memorial Hospital, Sapporo, Japan
| | - Taku Sakurada
- Department of Cardiovascular Surgery, Sapporo Central Hospital, Sapporo, Japan
| | - Takashi Takenaka
- Department of Cardiovascular Medicine, NHO Hokkaido Medical Center, Sapporo, Japan
| | - Yasumi Igarashi
- Department of Cardiovascular Medicine, Sapporo-Kosei General Hospital, Sapporo, Japan
| | - Takao Makino
- Department of Cardiovascular Medicine, Sapporo City General Hospital, Sapporo, Japan
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Nozaki Y, Fujimoto S, Takahashi D, Kawaguchi YO, Kudo A, Aoshima C, Kamo Y, Takamura K, Hiki M, Dohi T, Tomizawa N, Minamino T. Additional clinical impact of plaque analysis for on-site CT-derived FFR in coronary CT angiography on midterm prognosis. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.208] [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: 11/13/2022] Open
Abstract
Abstract
Background
We previously reported that per-patient on-site computed tomography-fractional flow reserve (CT-FFR), which can be acquired on-site workstation using fluid structure interaction during the multiple optimal diastolic phases measured 1 to 2 cm distal to a target lesion may be feasible for risk stratification based on future cardiac events for patients who did not undergo planned revascularization. However, per-vessel CT-FFR and the additional impact of plaque analysis on CT-FFR have not been evaluated.
Purpose
The aim of this study is to assess the clinical and additional impact of novel plaque analysis using labeling method for per-vessel CT-FFR on midterm prognosis.
Methods
A total of 254 consecutive patients with 354 vessels showing 50–90% stenosis but not revascularized within 90 days from coronary CT angiography (CCTA) on 320-row CT were retrospectively analyzed and followed during a median follow up 3.6 years. Plaque characteristics by labeling method (necrotic core/total plaque volume (% necrotic core), non-calcified plaque (NCP)/vessel volume (%NCP), and total plaque/vessel volume (%total plaque) for both total vessel volume (mm3) and at minimum lumen area (MLA, mm2)), positive remodeling (PR) and CT-FFR were analyzed on per-target vessels. The endpoint was vessel oriented-composite outcome (VOCO), including cardiac death, non-fatal MI, and unplanned revascularization.
Results
The incidence of VOCO occurred in 6.8% (24/354). In the cox proportional hazard model, a multivariate analysis identified CT-FFR≤0.80 was the most associated factor with VOCO (all values <0.01 for other plaque morphologies), but %necrotic core, %NCP, %total plaque at MLA and PR were significantly independent of CT-FFR≤0.80. (%necrotic core HR; 3.43 (p<0.01 [95% confidence interval (CI) 1.42–8.29]), %NCP HR; 4.05 (p=0.03 [95% CI 1.19–13.71]), %total plaque at MLA HR; 2.82 (p=0.02 [95% CI 1.18–6.76]), and PR HR; 2.90 (p<0.01 [95% CI 1.30–6.51]), respectively.)
Conclusion
From a view point of clinical outcomes for vessels with moderate to severe stenosis but not revascularized at initial CCTA, CT-FFR demonstrated the significant impact on per-vessel analysis. Moreover, %necrotic core, %NCP and %total plaque at MLA analyzed by labeling method provided better prognostic value in addition to CT-FFR.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- Y Nozaki
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - S Fujimoto
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - D Takahashi
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - Y O Kawaguchi
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - A Kudo
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - C Aoshima
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - Y Kamo
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - K Takamura
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - M Hiki
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - T Dohi
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - N Tomizawa
- Juntendo University Graduate School of Medicine, Department of Radiology , Tokyo , Japan
| | - T Minamino
- Juntendo University Graduate School of Medicine, Department of Radiology , Tokyo , Japan
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Yamashita Y, Inoue G, Nozaki Y, Kitajima R, Matsubara K, Horii T, Mohri J, Atsuda K, Matsubara H. Development and validation of an equation to predict the incidence of coronary heart disease in patients with type 2 diabetes in Japan. BMC Res Notes 2021; 14:426. [PMID: 34823578 PMCID: PMC8613942 DOI: 10.1186/s13104-021-05844-w] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 11/12/2021] [Indexed: 11/10/2022] Open
Abstract
Objective In the diabetes treatment policy after the Kumamoto Declaration 2013, it is difficult to accurately predict the incidence of complications in patients using the JJ risk engine. This study was conducted to develop a prediction equation suitable for the current diabetes treatment policy using patient data from Kitasato University Kitasato Institute Hospital (Hospital A) and to externally validate the developed equation using patient data from Kitasato University Hospital (Hospital B). Outlier tests were performed on the patient data from Hospital A to exclude the outliers. Prediction equation was developed using the patient data excluding the outliers and was subjected to external validation. Results By excluding outlier data, we could develop a new prediction equation for the incidence of coronary heart disease (CHD) as a complication of type 2 diabetes, incorporating the use of antidiabetic drugs with a high risk of hypoglycemia. This is the first prediction equation in Japan that incorporates the use of antidiabetic drugs. We believe that it will be useful in preventive medicine for treatment for people at high risk of CHD as a complication of diabetes or other diseases. In the future, we would like to confirm the accuracy of this equation at other facilities. Supplementary Information The online version contains supplementary material available at 10.1186/s13104-021-05844-w.
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Affiliation(s)
- Yasunari Yamashita
- Division of Clinical Pharmacy (Laboratory of Pharmacy Practice and Science III), and Research and Education Center for Clinical Pharmacy, School of Pharmacy, Kitasato University, 9-1, Shirokane 5-Chome, Minato-ku, Tokyo, 108-8641, Japan.
| | - Gaku Inoue
- Division of Clinical Pharmacy (Laboratory of Pharmacy Practice and Science III), and Research and Education Center for Clinical Pharmacy, School of Pharmacy, Kitasato University, 9-1, Shirokane 5-Chome, Minato-ku, Tokyo, 108-8641, Japan.,Department of Pharmacy, Kitasato University Kitasato Institute Hospital, 9-1, Shirokane 5-Chome, Minato-ku, Tokyo, 108-8641, Japan
| | - Yoichi Nozaki
- Division of Clinical Pharmacy (Laboratory of Pharmacy Practice and Science III), and Research and Education Center for Clinical Pharmacy, School of Pharmacy, Kitasato University, 9-1, Shirokane 5-Chome, Minato-ku, Tokyo, 108-8641, Japan
| | - Rina Kitajima
- Division of Clinical Pharmacy (Laboratory of Pharmacy Practice and Science III), and Research and Education Center for Clinical Pharmacy, School of Pharmacy, Kitasato University, 9-1, Shirokane 5-Chome, Minato-ku, Tokyo, 108-8641, Japan
| | - Kiyoshi Matsubara
- Division of Clinical Pharmacy (Laboratory of Pharmacy Practice and Science III), and Research and Education Center for Clinical Pharmacy, School of Pharmacy, Kitasato University, 9-1, Shirokane 5-Chome, Minato-ku, Tokyo, 108-8641, Japan.,AdvanceSoft Corporation, 4-3, Kandasurugadai, Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Takeshi Horii
- Division of Clinical Pharmacy (Laboratory of Pharmacy Practice and Science I), and Research and Education Center for Clinical Pharmacy, School of Pharmacy, Kitasato University, 1-15-1 Kitasato, Minami Ward, Sagamihara, Kanagawa, 252-0375, Japan.,Department of Pharmacy, Kitasato University Hospital, 1-15-1 Kitasato, Minami Ward, Sagamihara, Kanagawa, 252-0375, Japan
| | - Junichi Mohri
- Division of Clinical Pharmacy (Laboratory of Pharmacy Practice and Science I), and Research and Education Center for Clinical Pharmacy, School of Pharmacy, Kitasato University, 1-15-1 Kitasato, Minami Ward, Sagamihara, Kanagawa, 252-0375, Japan.,Department of Pharmacy, Kitasato University Hospital, 1-15-1 Kitasato, Minami Ward, Sagamihara, Kanagawa, 252-0375, Japan
| | - Koichiro Atsuda
- Division of Clinical Pharmacy (Laboratory of Pharmacy Practice and Science I), and Research and Education Center for Clinical Pharmacy, School of Pharmacy, Kitasato University, 1-15-1 Kitasato, Minami Ward, Sagamihara, Kanagawa, 252-0375, Japan.,Department of Pharmacy, Kitasato University Hospital, 1-15-1 Kitasato, Minami Ward, Sagamihara, Kanagawa, 252-0375, Japan
| | - Hajime Matsubara
- Division of Clinical Pharmacy (Laboratory of Pharmacy Practice and Science III), and Research and Education Center for Clinical Pharmacy, School of Pharmacy, Kitasato University, 9-1, Shirokane 5-Chome, Minato-ku, Tokyo, 108-8641, Japan.,Department of Pharmacy, Kitasato University Kitasato Institute Hospital, 9-1, Shirokane 5-Chome, Minato-ku, Tokyo, 108-8641, Japan
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4
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Shiono Y, Matsuo H, Fujita H, Tanaka N, Ogasawara Y, Kawamura I, Katayama Y, Matsuo A, Kawase Y, Kakuta T, Takashima H, Yokoi H, Ohira H, Suwa S, Oguri M, Yamamoto F, Kubo T, Akasaka T, Shiono Y, Katayama Y, Hironori K, Kubo T, Akasaka T, Tanaka N, Yamashita J, Fujita H, Matsuo A, Matsuo H, Kawase Y, Kawamura I, Kakuta T, Hoshino M, Sugano T, Takashima H, Amano T, Yokoi H, Yamamoto Y, Nozaki Y, Machida M, Kobori M, Kikuchi T, Ohira H, Yoshino H, Ishiguro H, Wakabayashi Y, Kondo T, Terai H, Suwa T, Kimura T, Kawajiri T, Hirohata A, Uemura S, Neishi Y, Sakamoto T, Yamada M, Okeie K, Hishikari K, Oguri M, Uetani T, Saegusa T, Yamamoto F, Yamada M. Diagnostic Accuracy of Diastolic Fractional Flow Reserve for Functional Evaluation of Coronary Stenosis. JACC: Asia 2021; 1:230-241. [PMID: 36338166 PMCID: PMC9627917 DOI: 10.1016/j.jacasi.2021.07.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/28/2021] [Accepted: 07/08/2021] [Indexed: 01/10/2023]
Abstract
Background In the resting conditions, narrowing the window of coronary pressure measurements from the whole cardiac cycle to diastole improves diagnostic performance of coronary pressure–derived physiological index. However, whether this also applies to the hyperemic conditions has not yet been thoroughly evaluated. Objectives The purpose of this study was to assess whether diastolic fractional flow reserve (diastolic FFR) has better diagnostic performance in identifying ischemia-causing coronary lesions than conventional FFR in a prospective, multicenter, and independent core laboratory–based environment. Methods In this prospective multicenter registry at 29 Japanese centers, we compared the diagnostic performance of FFR, diastolic FFR, resting distal to aortic coronary pressure (Pd/Pa), and diastolic pressure ratio (dPR) using myocardial perfusion scintigraphy (MPS) as the reference standard in 378 patients with single-vessel coronary disease. Results Inducible myocardial ischemia was found on MPS in the relevant myocardial territory of the target vessel in 85 patients (22%). In the receiver-operating curve analyses, diastolic FFR had comparable area under the curve (AUC) compared with FFR (AUCdiastolic FFR: 0.66; 95% confidence interval [CI]: 0.58-0.73, vs AUCFFR: 0.66; 95% CI: 0.58-0.74, P = 0.624). FFR and diastolic FFR showed significantly larger AUCs than resting Pd/Pa (0.62; 95% CI: 0.54-0.70; P = 0.033 and P = 0.046) but did not show significantly larger AUCs than dPR (0.62; 95% CI: 0.55-0.70; P = 0.102 and P = 0.113). Conclusions Diastolic FFR showed a similar diagnostic performance to FFR as compared with MPS. This result reaffirms the use of FFR as the most accurate invasive physiological lesion assessment. (Diagnostic accuracy of diastolic fractional flow reserve (d-FFR) for functional evaluation of coronary stenosis; UMIN000015906)
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Goto Y, Takahashi K, Saito H, Ogasawara T, Shindoh J, Kimura T, Sugino Y, Kojima E, Nomura F, Nakanishi T, Nozaki Y, Takeyama Y, Imaizumi K, Hasegawa Y. P1.01-25 Carboplatin and Pemetrexed Plus Bevacizumab After Failure of First-Line EGFR-TKI Therapy for NSCLC Harboring EGFR Mutation (CJLSG 0908). J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.581] [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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6
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Tatemoto K, Nozaki Y, Tsuda R, Kaneko S, Tomura K, Furuno M, Ogasawara H, Edamura K, Takagi H, Iwamura H, Noguchi M, Naito T. Endogenous protein and enzyme fragments induce immunoglobulin E-independent activation of mast cells via a G protein-coupled receptor, MRGPRX2. Scand J Immunol 2018; 87:e12655. [PMID: 29484687 DOI: 10.1111/sji.12655] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 02/20/2018] [Indexed: 12/31/2022]
Abstract
Mast cells play a central role in inflammatory and allergic reactions by releasing inflammatory mediators through 2 main pathways, immunoglobulin E-dependent and E-independent activation. In the latter pathway, mast cells are activated by a diverse range of basic molecules (collectively known as basic secretagogues) through Mas-related G protein-coupled receptors (MRGPRs). In addition to the known basic secretagogues, here, we discovered several endogenous protein and enzyme fragments (such as chaperonin-10 fragment) that act as bioactive peptides and induce immunoglobulin E-independent mast cell activation via MRGPRX2 (previously known as MrgX2), leading to the degranulation of mast cells. We discuss the possibility that MRGPRX2 responds various as-yet-unidentified endogenous ligands that have specific characteristics, and propose that MRGPRX2 plays an important role in regulating inflammatory responses to endogenous harmful stimuli, such as protein breakdown products released from damaged or dying cells.
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Affiliation(s)
- K Tatemoto
- Department of Molecular Physiology, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Japan
| | - Y Nozaki
- Pharmaceutical Frontier Research Laboratories, Japan Tobacco Inc., Yokohama, Japan
| | - R Tsuda
- Department of Molecular Physiology, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Japan
| | - S Kaneko
- Department of Molecular Physiology, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Japan
| | - K Tomura
- Pharmaceutical Frontier Research Laboratories, Japan Tobacco Inc., Yokohama, Japan
| | - M Furuno
- Pharmaceutical Frontier Research Laboratories, Japan Tobacco Inc., Yokohama, Japan
| | - H Ogasawara
- Pharmaceutical Frontier Research Laboratories, Japan Tobacco Inc., Yokohama, Japan
| | - K Edamura
- Pharmaceutical Frontier Research Laboratories, Japan Tobacco Inc., Yokohama, Japan
| | - H Takagi
- Pharmaceutical Frontier Research Laboratories, Japan Tobacco Inc., Yokohama, Japan
| | - H Iwamura
- Pharmaceutical Frontier Research Laboratories, Japan Tobacco Inc., Yokohama, Japan
| | - M Noguchi
- Pharmaceutical Frontier Research Laboratories, Japan Tobacco Inc., Yokohama, Japan
| | - T Naito
- Pharmaceutical Frontier Research Laboratories, Japan Tobacco Inc., Yokohama, Japan
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Maekawa M, Watanabe A, Iwayama Y, Kimura T, Hamazaki K, Balan S, Ohba H, Hisano Y, Nozaki Y, Ohnishi T, Toyoshima M, Shimamoto C, Iwamoto K, Bundo M, Osumi N, Takahashi E, Takashima A, Yoshikawa T. Polyunsaturated fatty acid deficiency during neurodevelopment in mice models the prodromal state of schizophrenia through epigenetic changes in nuclear receptor genes. Transl Psychiatry 2017; 7:e1229. [PMID: 28872641 PMCID: PMC5639238 DOI: 10.1038/tp.2017.182] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 06/26/2017] [Accepted: 07/06/2017] [Indexed: 12/13/2022] Open
Abstract
The risk of schizophrenia is increased in offspring whose mothers experience malnutrition during pregnancy. Polyunsaturated fatty acids (PUFAs) are dietary components that are crucial for the structural and functional integrity of neural cells, and PUFA deficiency has been shown to be a risk factor for schizophrenia. Here, we show that gestational and early postnatal dietary deprivation of two PUFAs-arachidonic acid (AA) and docosahexaenoic acid (DHA)-elicited schizophrenia-like phenotypes in mouse offspring at adulthood. In the PUFA-deprived mouse group, we observed lower motivation and higher sensitivity to a hallucinogenic drug resembling the prodromal symptoms in schizophrenia. Furthermore, a working-memory task-evoked hyper-neuronal activity in the medial prefrontal cortex was also observed, along with the downregulation of genes in the prefrontal cortex involved in oligodendrocyte integrity and the gamma-aminobutyric acid (GABA)-ergic system. Regulation of these genes was mediated by the nuclear receptor genes Rxr and Ppar, whose promoters were hyper-methylated by the deprivation of dietary AA and DHA. In addition, the RXR agonist bexarotene upregulated oligodendrocyte- and GABA-related gene expression and suppressed the sensitivity of mice to the hallucinogenic drug. Notably, the expression of these nuclear receptor genes were also downregulated in hair-follicle cells from schizophrenia patients. These results suggest that PUFA deficiency during the early neurodevelopmental period in mice could model the prodromal state of schizophrenia through changes in the epigenetic regulation of nuclear receptor genes.
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Affiliation(s)
- M Maekawa
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan,Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan. E-mail: or
| | - A Watanabe
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - Y Iwayama
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - T Kimura
- Department of Alzheimer's Disease Research, Center for Development of Advanced Medicine for Dementia, National Center for Geriatrics and Gerontology, Aichi, Japan
| | - K Hamazaki
- Department of Public Health, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - S Balan
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - H Ohba
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - Y Hisano
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - Y Nozaki
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - T Ohnishi
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - M Toyoshima
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - C Shimamoto
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan
| | - K Iwamoto
- Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - M Bundo
- Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - N Osumi
- Department of Developmental Neuroscience, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - E Takahashi
- Support Unit for Animal Resources Development, RIKEN Brain Science Institute, Saitama, Japan
| | - A Takashima
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan,Department of Life Sciences, Graduate School of Science, Gakushuin University, Tokyo, Japan
| | - T Yoshikawa
- Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, Saitama, Japan,Laboratory for Molecular Psychiatry, RIKEN Brain Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan. E-mail: or
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Kobayashi D, Yoshikawa T, Matsuo M, Iguchi R, Maekawa S, Saitoh E, Nozaki Y. Spin Current Generation Using a Surface Acoustic Wave Generated via Spin-Rotation Coupling. Phys Rev Lett 2017; 119:077202. [PMID: 28949686 DOI: 10.1103/physrevlett.119.077202] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Indexed: 06/07/2023]
Abstract
We demonstrate the generation of alternating spin current (SC) via spin-rotation coupling (SRC) using a surface acoustic wave (SAW) in a Cu film. Ferromagnetic resonance caused by injecting SAWs was observed in a Ni-Fe film attached to a Cu film, with the resonance further found to be suppressed through the insertion of a SiO_{2} film into the interface. The intensity of the resonance depended on the angle between the wave vector of the SAW and the magnetization of the Ni-Fe film. This angular dependence is explicable in terms of the presence of spin transfer torque from a SC generated via SRC.
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Affiliation(s)
- D Kobayashi
- Department of Physics, Keio University, Yokohama 223-8522, Japan
| | - T Yoshikawa
- Department of Physics, Keio University, Yokohama 223-8522, Japan
| | - M Matsuo
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
- Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - R Iguchi
- National Institute for Materials Science, Tsukuba 305-0047, Japan
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - S Maekawa
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - E Saitoh
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
- Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
- Center for Spintronics Research Network, Tohoku University, Sendai 980-8577, Japan
| | - Y Nozaki
- Department of Physics, Keio University, Yokohama 223-8522, Japan
- Center for Spintronics Research Network, Keio University, Yokohama 223-8522, Japan
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9
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Nozaki Y, Koyasu M. The location of emotional competence in the multiple intelligences theory seen from laypersons. Personality and Individual Differences 2016. [DOI: 10.1016/j.paid.2016.05.242] [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: 10/21/2022]
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11
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Hidehiko S, Nishiguchi S, Fukutani N, Adachi D, Tashiro Y, Hotta T, Morino S, Nozaki Y, Hirata H, Yamaguchi M, Aoyama T. O-015: Health literacy is associated with frailty stage in community-dwelling elderly people. Eur Geriatr Med 2015. [DOI: 10.1016/s1878-7649(15)30029-2] [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: 10/23/2022]
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12
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Morino S, Nishiguchi S, Fukutani N, Adachi D, Tashiro Y, Hotta T, Shirooka H, Nozaki Y, Hirata H, Yamaguchi M, Matsumoto D, Aoyama T. Association between pelvic asymmetry and lumbopelvic pain during pregnancy. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.1906] [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: 11/16/2022]
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13
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Mishima S, Nozaki Y, Mikami S, Kihira E, Iikura M, Koketsu R, Sugiyama H, Masuda T, Kaname H, Egami Y, Nakayama T, Hasuo K, Nakamura H, Igari T, Watanabe K, Nagata N, Sakurai T, Yokoi C, Kobayakawa M, Kojima Y, Akiyama J, Imamura M, Masaki N, Yanase M. Diffuse Liver Metastasis of Small-Cell Lung Cancer Presenting as Acute Liver Failure and Diagnosed by Transjugular Liver Biopsy: A Rare Case in Whom Nodular Lesions Were Detected by Enhanced CT Examination. Case Rep Gastroenterol 2015; 9:81-7. [PMID: 25969674 PMCID: PMC4427142 DOI: 10.1159/000381140] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Small-cell lung cancer (SCLC) is a subgroup of lung cancer with a high frequency of liver metastasis, which is a predictor of poor prognosis. Diffuse liver metastases of SCLC with no visible nodular lesions in the liver when examined using computed tomography (CT) are relatively rare; however, a few cases with rapid progression to acute liver failure that were diagnosed after death have been reported. In this paper, we report a 63-year-old man with diffuse liver metastases of SCLC that were histologically diagnosed using a transjugular liver biopsy while the patient was alive, even though no lesions were visible during a contrast-enhanced CT examination.
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Affiliation(s)
- S Mishima
- Department of Gastroenterology, National Center for Global Health and Medicine, Tokyo, Japan
| | - Y Nozaki
- Department of Gastroenterology, National Center for Global Health and Medicine, Tokyo, Japan
| | - S Mikami
- Department of Gastroenterology, National Center for Global Health and Medicine, Tokyo, Japan
| | - E Kihira
- Department of Gastroenterology, National Center for Global Health and Medicine, Tokyo, Japan
| | - M Iikura
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - R Koketsu
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - H Sugiyama
- Department of Respiratory Medicine, National Center for Global Health and Medicine, Tokyo, Japan
| | - T Masuda
- Department of Radiology, National Center for Global Health and Medicine, Tokyo, Japan
| | - H Kaname
- Department of Radiology, National Center for Global Health and Medicine, Tokyo, Japan
| | - Y Egami
- Department of Radiology, National Center for Global Health and Medicine, Tokyo, Japan
| | - T Nakayama
- Department of Radiology, National Center for Global Health and Medicine, Tokyo, Japan
| | - K Hasuo
- Department of Radiology, National Center for Global Health and Medicine, Tokyo, Japan
| | - H Nakamura
- Department of Pathology, National Center for Global Health and Medicine, Tokyo, Japan
| | - T Igari
- Department of Pathology, National Center for Global Health and Medicine, Tokyo, Japan
| | - K Watanabe
- Department of Gastroenterology, National Center for Global Health and Medicine, Tokyo, Japan
| | - N Nagata
- Department of Gastroenterology, National Center for Global Health and Medicine, Tokyo, Japan
| | - T Sakurai
- Department of Gastroenterology, National Center for Global Health and Medicine, Tokyo, Japan
| | - C Yokoi
- Department of Gastroenterology, National Center for Global Health and Medicine, Tokyo, Japan
| | - M Kobayakawa
- Department of Gastroenterology, National Center for Global Health and Medicine, Tokyo, Japan
| | - Y Kojima
- Department of Gastroenterology, National Center for Global Health and Medicine, Tokyo, Japan
| | - J Akiyama
- Department of Gastroenterology, National Center for Global Health and Medicine, Tokyo, Japan
| | - M Imamura
- Department of Gastroenterology, National Center for Global Health and Medicine, Tokyo, Japan
| | - N Masaki
- Department of Gastroenterology, National Center for Global Health and Medicine, Tokyo, Japan
| | - M Yanase
- Department of Gastroenterology, National Center for Global Health and Medicine, Tokyo, Japan
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Kato T, Morise M, Ando M, Kojima E, Ogasawara T, Suzuki R, Shindoh J, Matsumoto M, Sugino Y, Ogawa M, Nozaki Y, Kondo M, Saito H, Hasegawa Y. Can we Predict Severe Adverse Events (Saes) and Clarify Unfit Populations for Platinum-Based Chemotherapy in Elderly Patients (Over 70 Years of Age) with Advanced Non-Small Cell Lung Cancer (Nsclc)? (Cjlsg 1203 Trial). Ann Oncol 2014. [DOI: 10.1093/annonc/mdu349.37] [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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15
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Adachi D, Fukutani N, Nishiguchi S, Hotta T, Morino S, Tashiro Y, Hirata H, Nozaki Y, Shirooka H, Yamaguchi M, Yamada M, Aoyama T. P218: Differences in chest wall mobility and respiratory function among age groups: a cross-sectional study of the healthy elderly. Eur Geriatr Med 2014. [DOI: 10.1016/s1878-7649(14)70392-4] [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: 11/27/2022]
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16
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Nozaki Y, Kinoshita K, Yano T, Shiga T, Hino S, Niki K, Kishimoto K, Funauchi M, Matsumura I. Estimation of kidney injury molecule-1 (Kim-1) in patients with lupus nephritis. Lupus 2014; 23:769-77. [DOI: 10.1177/0961203314526292] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Accepted: 02/04/2014] [Indexed: 02/01/2023]
Abstract
Objective Biomarkers of disease activity in lupus nephritis (LN) are needed. Ideally, such biomarkers would be capable of detecting early sub-clinical disease and could be used to gauge response to therapy, thus obviating the need for serial renal biopsies. Much of the focus in the search for LN biomarkers has been on the measurement of urinary chemokines and cytokines in LN patients. However, these have yet to be widely implemented in clinical practice. Kidney injury molecule-1 (Kim-1) is expressed in damaged tubules, but whether urinary (u) and tubular (t)-Kim-1 could serve as a biomarker of active LN is unknown. To investigate the disease activity and histological findings in LN, we evaluated u-Kim-1 levels and t-Kim-1 cells in patients with systemic lupus erythematosus (SLE). Method We measured u-Kim-1 levels and stained t-Kim-1 expression in 57 patients with LN using an ELISA and immunohistochemistry staining. Patients were classified into two groups (active LN, n = 37; inactive LN, n = 20) based on the presence of active renal disease according to the renal SLE disease activity index. correlations of clinical, laboratory data, and histological findings with urinary and t-Kim-1 expression were assessed. Result The u-Kim-1 levels were significantly correlated with the expression of t-Kim-1 ( R = 0.64; P = 0.004) in the SLE patients. The active LN patients exhibited elevated u-Kim-1 levels compared to the inactive LN patients. The number of t-Kim-1 cells was also correlated with histological findings (both glomerular and interstitial inflammation). The u-Kim-1 levels were also correlated with proteinuria and tubular damage in the active LN group. The number of t-Kim-1 cells at baseline was significantly correlated with the estimated glomerular filtration rate ( R = 0.72; P = 0.005) and serum creatinine ( R = 0.53; P = 0.005) after 6–8 months of treatment. Conclusion These data suggest the potential use of the u-Kim-1 levels to screen for active LN and for the estimation of t-Kim-1 expression in renal biopsies to predict renal damage, ongoing glomerular nephritis and tubulointerstitial inflammation, and tubular atrophy.
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Affiliation(s)
- Y Nozaki
- Department of Hematology and Rheumatology, Kinki University School of Medicine, Osaka, Japan
| | - K Kinoshita
- Department of Hematology and Rheumatology, Kinki University School of Medicine, Osaka, Japan
| | - T Yano
- Department of Hematology and Rheumatology, Kinki University School of Medicine, Osaka, Japan
| | - T Shiga
- Department of Hematology and Rheumatology, Kinki University School of Medicine, Osaka, Japan
| | - S Hino
- Department of Hematology and Rheumatology, Kinki University School of Medicine, Osaka, Japan
| | - K Niki
- Department of Hematology and Rheumatology, Kinki University School of Medicine, Osaka, Japan
| | - K Kishimoto
- Department of Hematology and Rheumatology, Kinki University School of Medicine, Osaka, Japan
| | - M Funauchi
- Department of Hematology and Rheumatology, Kinki University School of Medicine, Osaka, Japan
| | - I Matsumura
- Department of Hematology and Rheumatology, Kinki University School of Medicine, Osaka, Japan
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17
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Umemoto K, Kojima Y, Akiyama J, Nozaki Y, Nagata N, Sakurai T, Yokoi C, Kobayakawa M, Yanase M. Cytomegalovirus Esophagitis During Chemotherapy in Patients with Esophageal Cancer; a Report of Three Cases. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt460.61] [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: 11/12/2022] Open
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18
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Toyofuku M, Kimura T, Morimoto T, Hayashi Y, Shiode N, Nishikawa H, Nakao K, Shirota K, Kawai K, Hiasa Y, Kadota K, Nozaki Y, Isshiki T, Sone T, Mitsudo K. Comparison of 5-Year Outcomes in Patients With and Without Unprotected Left Main Coronary Artery Disease After Treatment With Sirolimus-Eluting Stents. JACC Cardiovasc Interv 2013; 6:654-63. [DOI: 10.1016/j.jcin.2013.03.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 03/22/2013] [Accepted: 03/28/2013] [Indexed: 10/26/2022]
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19
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Fujii T, Sekiguchi M, Matsui K, Kitano M, Hashimoto M, Ohmura K, Yamamoto A, Nakahara H, Maeda K, Yokota A, Miki K, Shimmyo N, Kuroiwa T, Murakami K, Ozaki Y, Higami K, Yoshii I, Nozaki Y, Ikawa T, Morita S, Kawahito Y, Nishimoto N, Mimori T, Sano H. AB0334 Very high titer of anti-citrullinated protein antibodies is associated with the achievement of clinical remission by abatacept in biologic-naïve patients with rheumatoid arthritis (the abroad study). Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2656] [Citation(s) in RCA: 2] [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: 11/04/2022]
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20
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Matsutani T, Murakami M, Sekiguchi M, Matsui K, Kitano M, Namiki M, Ohmura K, Imura Y, Fujii T, Kuroiwa T, Nakahara H, Hika S, Maeda K, Nozaki Y, Funauchi M, Murakami K, Ikawa T, Irimajiri S, Nampei A, Azuma T, Sasaki T, Yokota A, Morita S, Kawahito Y, Mimori T, Sano H, Nishimoto N. SAT0101 Abatacept Treatment Suppresses T Cell Activation in Anti-Cyclic Citrullinated Peptide Antibody (ACPA) Positive RA Patients but not in Acpa Negative RA Patients. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1827] [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: 11/04/2022]
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21
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Murakami M, Matsutani T, Sekiguchi M, Matsui K, Kitano M, Namiki M, Ohmura K, Imura Y, Fujii T, Kuroiwa T, Nakahara H, Higa S, Maeda K, Nozaki Y, Funauchi M, Murakami K, Ikawa T, Irimajiri S, Nampei A, Azuma T, Sasaki T, Yokota A, Morita S, Kawahito Y, Mimori T, Sano H, Nishimoto N. SAT0121 Changes in Cytokine Profiles in Rheumatoid Arthritis Patients During Abatacept Treatment. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1847] [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: 11/04/2022]
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22
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Yamane M, Muto M, Matsubara T, Nakamura S, Muramatsu T, Oida A, Igarashi Y, Nozaki Y, Kijima M, Tuschikane E. Contemporary retrograde approach for the recanalisation of coronary chronic total occlusion: on behalf of the Japanese Retrograde Summit Group. EUROINTERVENTION 2013; 9:102-9. [DOI: 10.4244/eijv9i1a15] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Suzuki G, Nozaki Y, Sakurai M. A novel guidewire approach for handling acute-angle bifurcations: reversed guidewire technique with adjunctive use of a double-lumen microcatheter. J Invasive Cardiol 2013; 25:48-54. [PMID: 23293176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Guidewire manipulation to negotiate branches originating at an acute angle from the parent artery is a frequently encountered challenge by the interventional cardiologist in clinical practice. To date, several methods have been developed, but none of them has a definitive success rate. Here, we report a technique for negotiating extremely angulated vascular bifurcations, with which we have achieved a high rate of success in percutaneous coronary intervention. This technique involves combining a reversed guidewire technique with a double-lumen multifunctional probing microcatheter. We present the cases of 3 patients successfully treated using this technique.
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Affiliation(s)
- George Suzuki
- Division of Cardiovascular Medicine, Hokko Memorial Hospital, North-27, East-8, Higashi-Ku, Sapporo, Hokkaido 065-0027, Japan.
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24
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Nagashima M, Mori M, Monden Y, Yamagata T, Nozaki Y, Fukuda T, Sugie H, Momoi M. [A retrospective study of 18 cases of benign infantile seizures with mild gastroenteritis]. No To Hattatsu 2013; 45:62-63. [PMID: 23593749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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25
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Nozaki Y, Nishizawa N, Omoda E, Kataura H, Sakakibara Y. Power scaling of dispersion-managed Er-doped ultrashort pulse fiber laser with single wall carbon nanotubes. Opt Lett 2012; 37:5079-5081. [PMID: 23258011 DOI: 10.1364/ol.37.005079] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A high-power, passively mode-locked, Er-doped fiber laser with a single wall carbon nanotube polyimide film was demonstrated in dispersion-managed dissipative-soliton mode-locking operation. The average maximum power of 285 mW and a pulse energy of 8.1 nJ are the highest values yet achieved for single-pulse operation in a nanotube fiber laser. A high-power ultrashort pulse of 680 fs was generated by dispersion compensation at a repetition rate of 34.9 MHz. Passive mode-locking was numerically analyzed, and the dynamics and output properties are discussed.
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Affiliation(s)
- Y Nozaki
- Department of Electrical Engineering and Computer Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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26
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Nakamura A, Tajima K, Zolzaya K, Sato K, Inoue R, Yoneda M, Fujita K, Nozaki Y, Kubota KC, Haga H, Kubota N, Nagashima Y, Nakajima A, Maeda S, Kadowaki T, Terauchi Y. Protection from non-alcoholic steatohepatitis and liver tumourigenesis in high fat-fed insulin receptor substrate-1-knockout mice despite insulin resistance. Diabetologia 2012; 55:3382-91. [PMID: 22955994 DOI: 10.1007/s00125-012-2703-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2012] [Accepted: 07/27/2012] [Indexed: 12/20/2022]
Abstract
AIMS/HYPOTHESIS Epidemiological studies have revealed that obesity and diabetes mellitus are independent risk factors for the development of non-alcoholic steatohepatitis (NASH) and hepatocellular carcinoma. However, the debate continues on whether insulin resistance as such is directly associated with NASH and liver tumourigenesis. Here, we investigated the incidence of NASH and liver tumourigenesis in Irs1 ( -/- ) mice subjected to a long-term high-fat (HF) diet. Our hypothesis was that hepatic steatosis, rather than insulin resistance may be related to the pathophysiology of these conditions. METHODS Mice (8 weeks old, C57Bl/6J) were given free access to standard chow (SC) or an HF diet. The development of NASH and liver tumourigenesis was evaluated after mice had been on the above-mentioned diets for 60 weeks. Similarly, Irs1 ( -/- ) mice were also subjected to an HF diet for 60 weeks. RESULTS Long-term HF diet loading, which causes obesity and insulin resistance, was sufficient to induce NASH and liver tumourigenesis in the C57Bl/6J mice. Obesity and insulin resistance were reduced by switching mice from the HF diet to SC, which also protected these mice against the development of NASH and liver tumourigenesis. However, compared with wild-type mice fed the HF diet, Irs1 ( -/- ) mice fed the HF diet were dramatically protected against NASH and liver tumourigenesis despite the presence of severe insulin resistance and marked postprandial hyperglycaemia. CONCLUSIONS/INTERPRETATION IRS-1 inhibition might protect against HF diet-induced NASH and liver tumourigenesis, despite the presence of insulin resistance.
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Affiliation(s)
- A Nakamura
- Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama, Japan
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27
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Nozaki Y, Isobe K, Nakashima I, Shimokata K. Tumor-cytotoxicity of nitric-oxide produced from alveolar macrophages directly stimulated with tumor-cells. Int J Oncol 2012; 2:1053-7. [PMID: 21573670 DOI: 10.3892/ijo.2.6.1053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Macrophages activated by lipopolysaccharide or interferon-gamma have been shown to be cytotoxic to tumor cells by releasing nitric oxide. Here, we report that unstimulated rat alveolar macrophages cultured with certain tumor cells produce nitric oxide and are cytotoxic to these tumor cells. Alveolar macrophages were taken from BUF/Mna rats, which were known to produce spontaneous thymoma, and cultured with syngeneic BUF/Mna-derived thymoma cells. They were killed by syngeneic or allogeneic alveolar macrophages and this killing was partially abolished by addition of N(G)-monomethyl-L-arginine. X-ray irradiated, mitomycin C-treated or membranous fragments of BUF/Mna-derived thymoma cells directly stimulated rat alveolar macrophages to produce nitric oxide.
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Affiliation(s)
- Y Nozaki
- NAGOYA UNIV,SCH MED,DEPT INTERNAL MED 1,NAGOYA,AICHI 466,JAPAN. NAGOYA UNIV,SCH MED,DEPT IMMUNOL,NAGOYA,AICHI 466,JAPAN
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28
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Hiuge-Shimizu A, Kishida K, Funahashi T, Okutsu M, Kametani R, Kobayashi H, Nozaki Y, Nomura A, Yokoi H, Yoshizumi T, Ohira T, Nakamura T, Matsuzawa Y, Sumitsuji S, Shimomura I. Coexistence of visceral fat and multiple risk factor accumulations is strongly associated with coronary artery disease in Japanese (the VACATION-J study). J Atheroscler Thromb 2012; 19:657-63. [PMID: 22472215 DOI: 10.5551/jat.13037] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
AIM Multiple risk factor syndrome is a target for the prevention of coronary artery disease (CAD). A cluster of multiple risk factors, such as hypertension, glucose intolerance, and/or dyslipidemia, is encountered in Japanese without and with excess visceral fat. The present study investigated the relationship between multiple risk factor accumulation and CAD in Japanese without and with visceral fat accumulation. METHODS The study subjects comprised 257 Japanese with suspected CAD (males/females= 153/ 104), who underwent 64-row multislice computed tomography (CT) coronary angiography and visceral fat area (VFA) measurement by CT. Based on the Japanese criteria for visceral fat accumulation, they were divided into those with VFA <100 and ≥10 cm(2). RESULTS In subjects with VFA <100 cm(2), the age- and sex-adjusted odds ratios (ORs) for 2 and 3 risk factors were 5.33 (95% confidence intervals; 1.04-27.38, p=0.0449) and 4.07 (0.72-23.15, p=0.1138), respectively, compared with VFA <100 cm(2) and 0 risk factor set at 1.0 (p=0.0569 for trend). In contrast, the respective ORs for subjects with VFA ≥100 cm(2) were much higher [6.46 (1.25-33.44, p=0.0261) and 20.42 (3.60-115.73, p=0.0007)] (p<0.0001 for trend). The multivariate adjusted model demonstrated a significant relative excess CAD risk of 1.08 (p=0.0484) and 5.01 (p<0.0001) for the interactions of 2 risk factors and VFA ≥100 cm(2), and 3 risk factors and VFA ≥100 cm(2), whereas multiple risk factor accumulation was not related with the increase of CAD risk in subjects with VFA <100 cm(2). CONCLUSIONS Coexistence of visceral fat and risk factor accumulations is strongly associated with CAD in Japanese.
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Affiliation(s)
- Aki Hiuge-Shimizu
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
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Nishizawa N, Nozaki Y, Itoga E, Kataura H, Sakakibara Y. Dispersion-managed, high-power, Er-doped ultrashort-pulse fiber laser using carbon-nanotube polyimide film. Opt Express 2011; 19:21874-21879. [PMID: 22109039 DOI: 10.1364/oe.19.021874] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We investigated a dispersion-managed, passively mode-locked, ultrashort-pulse, Er-doped fiber laser using a polyimide film containing dispersed single-wall carbon nanotubes (SWNTs) and examined the dependence on net cavity dispersion and output coupling ratio using normal-dispersion fibers and a variable output coupler. For the dissipative soliton mode-locking condition, we achieved a pulse energy of 3.5 nJ and an average power of 114 mW, the highest values yet reported for an SWNT fiber laser under single-pulse operation.
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Affiliation(s)
- N Nishizawa
- Dept. of Electrical Engineering and Computer Science, Nagoya University, Nagoya 464-8603, Japan.
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Takahashi T, Nozaki Y, Nakagawa-Mizuyachi K, Nakayama H, Kawashima M. Changes in angiotensin II receptor bindings in the hen neurohypophysis before and after oviposition. Poult Sci 2011; 90:2565-72. [PMID: 22010242 DOI: 10.3382/ps.2010-01328] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The present study was performed to elucidate whether the angiotensin II (ANG II) receptor exists in the plasma membrane fraction of the neurohypophysis in hens, to estimate the time of action of ANG II on the neurohypophysis before and after oviposition, and to examine relationships between the action of ANG II on the neurohypophysis and those of estrogen and prostaglandin F(2α) (PGF(2α)) in relation to arginine vasotocin (AVT) release. The specific binding had a binding specificity to chicken ANG II (cANG II), reversibility, and saturation in the [(125)I]cANG II binding assay. Scatchard analysis revealed that the binding sites are of a single class. The equilibrium dissociation constant (K(d)) obtained by kinetic analysis and Scatchard analysis suggested a high affinity, and the maximum binding capacity (B(max)) obtained by Scatchard analysis suggested a limited capacity. These results suggest that an ANG II receptor exists in the neurohypophysis of hens. The K(d) and the B(max) value was significantly smaller in laying hens than in nonlaying hens, which suggests that bindings of the cANG II receptor change, depending on the difference in laying condition. Values of the K(d) and the B(max) decreased approximately 15 min before oviposition in laying hens, and decreased 1 h after an intramuscular injection of estradiol-17β and 5 min after an intravenous injection of cANG II in nonlaying hens. The amount of specific binding of PGF(2α) receptor in the neurohypophysis also decreased and AVT concentration in blood increased after the cANG II injection. It seems likely that the action of cANG II in the neurohypophysis increases due to the effect of estrogen approximately 15 min before oviposition, and the cANG II action stimulates AVT release through the increase in the PGF(2α) action in this tissue.
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Affiliation(s)
- T Takahashi
- Department of Avian Endocrinology, Gifu University, Yanagido, Gifu, Japan
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Mawatari H, Yoneda M, Fujita K, Nozaki Y, Shinohara Y, Sasaki H, Iida H, Takahashi H, Inamori M, Abe Y, Kobayashi N, Kubota K, Kirikoshi H, Nakajima A, Saito S. Association between phospholipids and free cholesterol in high-density lipoprotein and the response to hepatitis C treatment in Japanese with genotype 1b. J Viral Hepat 2010; 17:859-65. [PMID: 20070501 DOI: 10.1111/j.1365-2893.2009.01253.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 01/26/2023]
Abstract
Pegylated interferon and ribavirin combination therapy is the standard treatment for patients with chronic hepatitis C (CHC), but treatment failure can be difficult to predict. We and others have reported a relation between lipid values and sustained viral responses in patients with CHC. However, the relationship between lipid values and treatment failure has not been previously reported. The present study investigated the association between the profiles of phospholipids and free cholesterol (FC), the main constitutive ingredients of the surface of lipoprotein, classified according to particle size and hepatitis C treatment, and determined the usefulness of these parameters for predicting the outcome of treatment. Fifty-five patients with CHC (33 men and 22 women) were included in the study. The serum total cholesterol, triglyceride, phospholipids, and FC levels in the lipoprotein subclasses were determined using high-performance liquid chromatography with gel permeation columns, enabling the lipoproteins to be classified into 13 subclasses according to particle size. According to a univariate analysis, the treatment failure group had a significantly higher serum phospholipid level overall in the high-density lipoprotein (HDL) and medium HDL fractions as well as a higher serum FC level in the HDL fraction and all HDL subclass fractions compared with the corresponding values in the non-nonvirological response group. Higher serum phospholipid and FC concentrations in the HDL subclasses were predictive of a failure to respond in patients with genotype 1b.
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Affiliation(s)
- H Mawatari
- Gastroenterology Division, Yokohama City University School of Medicine, Fukuura, Kanazawa-ku, Yokohama City, Japan
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Yoneda K, Takahashi H, Abe Y, Inamori M, Kato S, Uchiyama T, Iida H, Mawatari H, Hosono K, Endo H, Nozaki Y, Akiyama T, Fujita K, Yoneda M, Kobayashi N, Kirikoshi H, Kubota K, Saito S, Nakajima A. A mucosa-associated lymphoid tissue (MALT) lymphoma of the small intestine that was difficult to diagnose endoscopically. Endoscopy 2010; 42 Suppl 2:E175. [PMID: 20560120 DOI: 10.1055/s-0029-1214857] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- K Yoneda
- Gastroenterology Division, Yokohama City University School of Medicine, Japan
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Mawatari H, Yoneda M, Fujita K, Nozaki Y, Shinohara Y, Sasaki H, Iida H, Takahashi H, Inamori M, Abe Y, Kobayashi N, Kubota K, Kirikoshi H, Nakajima A, Saito S. Association between lipoprotein subfraction profile and the response to hepatitis C treatment in Japanese patients with genotype 1b. J Viral Hepat 2010; 17:274-9. [PMID: 19708862 DOI: 10.1111/j.1365-2893.2009.01179.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [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: 01/07/2023]
Abstract
Pegylated interferon and ribavirin combination therapy is the standard treatment for patients with chronic hepatitis C (CHC). Some groups have reported a relation between lipid values and response while others have reported that microsomal triglyceride transfer protein, a key enzyme in the assembly and secretion of lipoproteins, was related to hepatitis C virus (HCV). The aim of this study was to investigate the association between the lipoprotein profiles, classified according to size, and hepatitis C treatment and the usefulness for predicting the outcome of treatment. Forty-four patients with CHC (27 men and 17 women) were included in the study. The serum cholesterol and triglyceride (TG) levels in the lipoprotein subclasses were determined using high-performance liquid chromatography with gel permeation columns, which classified lipoproteins into 20 subfractions based on particle size. According to a univariate analysis, those who achieved an sustained viral response (SVR) had a significantly higher serum total cholesterol level, higher cholesterol levels in the low-density lipoprotein subfraction (25.5 nm in diameter) and the very low-density lipoprotein (VLDL) subfraction (44.5 and 36.8 nm), and a higher serum TG level in the VLDL subfraction (44.5 nm), compared with the corresponding values in the non-SVR group. Higher serum cholesterol and TG concentrations in the lipoprotein subfractions were predictive of an SVR to therapy for HCV infection with genotype 1b prior to the start of interferon treatment.
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Affiliation(s)
- H Mawatari
- Gastroenterology Division, Yokohama City University School of Medicine, Yokohama, Japan
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34
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Endo H, Hosono K, Fujisawa T, Takahashi H, Sugiyama M, Yoneda K, Nozaki Y, Fujita K, Yoneda M, Inamori M, Wada K, Nakagama H, Nakajima A. Involvement of JNK pathway in the promotion of the early stage of colorectal carcinogenesis under high-fat dietary conditions. Gut 2009; 58:1637-43. [PMID: 19570763 DOI: 10.1136/gut.2009.183624] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [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: 12/31/2022]
Abstract
BACKGROUND AND AIMS The molecular mechanisms underlying the promotion of colorectal carcinogenesis by a high-fat diet (HFD) remain unclear. We investigated the role of the insulin-signal pathway and the c-Jun N-terminal kinase (JNK) pathway, which reportedly play crucial roles in insulin resistance, during colorectal carcinogenesis in the presence of hyperinsulinaemia induced by a HFD. METHODS Azoxymethane-induced aberrant crypt foci formation and cell proliferation in the colonic epithelium were compared between mice fed a normal diet (ND) and mice fed a HFD. A western blot analysis was performed to elucidate the mechanism affecting colorectal carcinogenesis by a HFD. RESULTS The number of aberrant crypt foci and the colonic epithelial cell proliferative activity were significantly higher in the HFD group than in the ND group. While the plasma insulin level was significantly higher in the HFD group than in the ND group, a western blot analysis revealed the inactivation of Akt, which is located downstream of the insulin receptor, in the colonic epithelia of the HFD group. On the other hand, JNK activity was significantly higher in the HFD group than in the ND group. A JNK specific inhibitor significantly suppressed the increase in epithelial cell proliferation only under a HFD, but not under a ND. CONCLUSIONS Colonic cell proliferation was promoted via the JNK pathway in the presence of a HFD but not in the presence of a ND. This novel mechanism may explain the involvement of the JNK pathway in the effect of dietary fat intake on colon carcinogenesis.
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Affiliation(s)
- H Endo
- 3-9 Fuku-ura, Kanazawa-ku, Yokohama 236-0004, Japan;
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35
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Toyofuku M, Kimura T, Morimoto T, Hayashi Y, Ueda H, Kawai K, Nozaki Y, Hiramatsu S, Miura A, Yokoi Y, Toyoshima S, Nakashima H, Haze K, Tanaka M, Take S, Saito S, Isshiki T, Mitsudo K. Three-Year Outcomes After Sirolimus-Eluting Stent Implantation for Unprotected Left Main Coronary Artery Disease. Circulation 2009; 120:1866-74. [DOI: 10.1161/circulationaha.109.873349] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.9] [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: 01/12/2023]
Abstract
Background—
Long-term outcomes after stenting of an unprotected left main coronary artery (ULMCA) with drug-eluting stents have not been addressed adequately despite the growing popularity of this procedure.
Methods and Results—
j-Cypher is a multicenter prospective registry of consecutive patients undergoing sirolimus-eluting stent implantation in Japan. Among 12 824 patients enrolled in the j-Cypher registry, the unadjusted mortality rate at 3 years was significantly higher in patients with ULMCA stenting (n=582) than in patients without ULMCA stenting (n=12 242; 14.6% versus 9.2%, respectively;
P
<0.0001); however, there was no significant difference between the 2 groups in the adjusted risk of death (hazard ratio 1.23, 95% confidence interval 0.95 to 1.60,
P
=0.12). Among 476 patients whose ULMCA lesions were treated exclusively with a sirolimus-eluting stent, patients with ostial/shaft lesions (n=96) compared with those with bifurcation lesions (n=380) had a significantly lower rate of target-lesion revascularization for the ULMCA lesions (3.6% versus 17.1%,
P
=0.005), with similar cardiac death rates at 3 years (9.8% versus 7.6%,
P
=0.41). Among patients with bifurcation lesions, patients with stenting of both the main and side branches (n=119) had significantly higher rates of cardiac death (12.2% versus 5.5%;
P
=0.02) and target-lesion revascularization (30.9% versus 11.1%;
P
<0.0001) than those with main-branch stenting alone (n=261).
Conclusions—
The higher unadjusted mortality rate of patients undergoing ULMCA stenting with a sirolimus-eluting stent did not appear to be related to ULMCA treatment itself but rather to the patients’ high-risk profile. Although long-term outcomes in patients with ostial/shaft ULMCA lesions were favorable, outcomes in patients with bifurcation lesions treated with stenting of both the main and side branches appeared unacceptable.
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Affiliation(s)
- Mamoru Toyofuku
- From Tsuchiya General Hospital (M. Toyofuku, Y.H., H.U.), Hiroshima, Japan; Department of Cardiovascular of Medicine (T.K.) and Center for Medical Education and Clinical Epidemiology Unit (T.M.), Graduate School of Medicine, Kyoto University, Kyoto, Japan; Chikamori Hospital (K.K.), Kochi, Japan; Hokko Memorial Hospital (Y.N.), Sapporo, Japan; Ehime Prefectural Central Hospital (S.H.), Matsuyama, Japan; Japanese Red Cross Society Wakayama Medical Center (A.M.), Wakayama, Japan; Kishiwada Tokushukai
| | - Takeshi Kimura
- From Tsuchiya General Hospital (M. Toyofuku, Y.H., H.U.), Hiroshima, Japan; Department of Cardiovascular of Medicine (T.K.) and Center for Medical Education and Clinical Epidemiology Unit (T.M.), Graduate School of Medicine, Kyoto University, Kyoto, Japan; Chikamori Hospital (K.K.), Kochi, Japan; Hokko Memorial Hospital (Y.N.), Sapporo, Japan; Ehime Prefectural Central Hospital (S.H.), Matsuyama, Japan; Japanese Red Cross Society Wakayama Medical Center (A.M.), Wakayama, Japan; Kishiwada Tokushukai
| | - Takeshi Morimoto
- From Tsuchiya General Hospital (M. Toyofuku, Y.H., H.U.), Hiroshima, Japan; Department of Cardiovascular of Medicine (T.K.) and Center for Medical Education and Clinical Epidemiology Unit (T.M.), Graduate School of Medicine, Kyoto University, Kyoto, Japan; Chikamori Hospital (K.K.), Kochi, Japan; Hokko Memorial Hospital (Y.N.), Sapporo, Japan; Ehime Prefectural Central Hospital (S.H.), Matsuyama, Japan; Japanese Red Cross Society Wakayama Medical Center (A.M.), Wakayama, Japan; Kishiwada Tokushukai
| | - Yasuhiko Hayashi
- From Tsuchiya General Hospital (M. Toyofuku, Y.H., H.U.), Hiroshima, Japan; Department of Cardiovascular of Medicine (T.K.) and Center for Medical Education and Clinical Epidemiology Unit (T.M.), Graduate School of Medicine, Kyoto University, Kyoto, Japan; Chikamori Hospital (K.K.), Kochi, Japan; Hokko Memorial Hospital (Y.N.), Sapporo, Japan; Ehime Prefectural Central Hospital (S.H.), Matsuyama, Japan; Japanese Red Cross Society Wakayama Medical Center (A.M.), Wakayama, Japan; Kishiwada Tokushukai
| | - Hiroaki Ueda
- From Tsuchiya General Hospital (M. Toyofuku, Y.H., H.U.), Hiroshima, Japan; Department of Cardiovascular of Medicine (T.K.) and Center for Medical Education and Clinical Epidemiology Unit (T.M.), Graduate School of Medicine, Kyoto University, Kyoto, Japan; Chikamori Hospital (K.K.), Kochi, Japan; Hokko Memorial Hospital (Y.N.), Sapporo, Japan; Ehime Prefectural Central Hospital (S.H.), Matsuyama, Japan; Japanese Red Cross Society Wakayama Medical Center (A.M.), Wakayama, Japan; Kishiwada Tokushukai
| | - Kazuya Kawai
- From Tsuchiya General Hospital (M. Toyofuku, Y.H., H.U.), Hiroshima, Japan; Department of Cardiovascular of Medicine (T.K.) and Center for Medical Education and Clinical Epidemiology Unit (T.M.), Graduate School of Medicine, Kyoto University, Kyoto, Japan; Chikamori Hospital (K.K.), Kochi, Japan; Hokko Memorial Hospital (Y.N.), Sapporo, Japan; Ehime Prefectural Central Hospital (S.H.), Matsuyama, Japan; Japanese Red Cross Society Wakayama Medical Center (A.M.), Wakayama, Japan; Kishiwada Tokushukai
| | - Yoichi Nozaki
- From Tsuchiya General Hospital (M. Toyofuku, Y.H., H.U.), Hiroshima, Japan; Department of Cardiovascular of Medicine (T.K.) and Center for Medical Education and Clinical Epidemiology Unit (T.M.), Graduate School of Medicine, Kyoto University, Kyoto, Japan; Chikamori Hospital (K.K.), Kochi, Japan; Hokko Memorial Hospital (Y.N.), Sapporo, Japan; Ehime Prefectural Central Hospital (S.H.), Matsuyama, Japan; Japanese Red Cross Society Wakayama Medical Center (A.M.), Wakayama, Japan; Kishiwada Tokushukai
| | - Shinichi Hiramatsu
- From Tsuchiya General Hospital (M. Toyofuku, Y.H., H.U.), Hiroshima, Japan; Department of Cardiovascular of Medicine (T.K.) and Center for Medical Education and Clinical Epidemiology Unit (T.M.), Graduate School of Medicine, Kyoto University, Kyoto, Japan; Chikamori Hospital (K.K.), Kochi, Japan; Hokko Memorial Hospital (Y.N.), Sapporo, Japan; Ehime Prefectural Central Hospital (S.H.), Matsuyama, Japan; Japanese Red Cross Society Wakayama Medical Center (A.M.), Wakayama, Japan; Kishiwada Tokushukai
| | - Akira Miura
- From Tsuchiya General Hospital (M. Toyofuku, Y.H., H.U.), Hiroshima, Japan; Department of Cardiovascular of Medicine (T.K.) and Center for Medical Education and Clinical Epidemiology Unit (T.M.), Graduate School of Medicine, Kyoto University, Kyoto, Japan; Chikamori Hospital (K.K.), Kochi, Japan; Hokko Memorial Hospital (Y.N.), Sapporo, Japan; Ehime Prefectural Central Hospital (S.H.), Matsuyama, Japan; Japanese Red Cross Society Wakayama Medical Center (A.M.), Wakayama, Japan; Kishiwada Tokushukai
| | - Yoshiaki Yokoi
- From Tsuchiya General Hospital (M. Toyofuku, Y.H., H.U.), Hiroshima, Japan; Department of Cardiovascular of Medicine (T.K.) and Center for Medical Education and Clinical Epidemiology Unit (T.M.), Graduate School of Medicine, Kyoto University, Kyoto, Japan; Chikamori Hospital (K.K.), Kochi, Japan; Hokko Memorial Hospital (Y.N.), Sapporo, Japan; Ehime Prefectural Central Hospital (S.H.), Matsuyama, Japan; Japanese Red Cross Society Wakayama Medical Center (A.M.), Wakayama, Japan; Kishiwada Tokushukai
| | - Shinichiro Toyoshima
- From Tsuchiya General Hospital (M. Toyofuku, Y.H., H.U.), Hiroshima, Japan; Department of Cardiovascular of Medicine (T.K.) and Center for Medical Education and Clinical Epidemiology Unit (T.M.), Graduate School of Medicine, Kyoto University, Kyoto, Japan; Chikamori Hospital (K.K.), Kochi, Japan; Hokko Memorial Hospital (Y.N.), Sapporo, Japan; Ehime Prefectural Central Hospital (S.H.), Matsuyama, Japan; Japanese Red Cross Society Wakayama Medical Center (A.M.), Wakayama, Japan; Kishiwada Tokushukai
| | - Hitoshi Nakashima
- From Tsuchiya General Hospital (M. Toyofuku, Y.H., H.U.), Hiroshima, Japan; Department of Cardiovascular of Medicine (T.K.) and Center for Medical Education and Clinical Epidemiology Unit (T.M.), Graduate School of Medicine, Kyoto University, Kyoto, Japan; Chikamori Hospital (K.K.), Kochi, Japan; Hokko Memorial Hospital (Y.N.), Sapporo, Japan; Ehime Prefectural Central Hospital (S.H.), Matsuyama, Japan; Japanese Red Cross Society Wakayama Medical Center (A.M.), Wakayama, Japan; Kishiwada Tokushukai
| | - Kazuo Haze
- From Tsuchiya General Hospital (M. Toyofuku, Y.H., H.U.), Hiroshima, Japan; Department of Cardiovascular of Medicine (T.K.) and Center for Medical Education and Clinical Epidemiology Unit (T.M.), Graduate School of Medicine, Kyoto University, Kyoto, Japan; Chikamori Hospital (K.K.), Kochi, Japan; Hokko Memorial Hospital (Y.N.), Sapporo, Japan; Ehime Prefectural Central Hospital (S.H.), Matsuyama, Japan; Japanese Red Cross Society Wakayama Medical Center (A.M.), Wakayama, Japan; Kishiwada Tokushukai
| | - Masaru Tanaka
- From Tsuchiya General Hospital (M. Toyofuku, Y.H., H.U.), Hiroshima, Japan; Department of Cardiovascular of Medicine (T.K.) and Center for Medical Education and Clinical Epidemiology Unit (T.M.), Graduate School of Medicine, Kyoto University, Kyoto, Japan; Chikamori Hospital (K.K.), Kochi, Japan; Hokko Memorial Hospital (Y.N.), Sapporo, Japan; Ehime Prefectural Central Hospital (S.H.), Matsuyama, Japan; Japanese Red Cross Society Wakayama Medical Center (A.M.), Wakayama, Japan; Kishiwada Tokushukai
| | - Shunsuke Take
- From Tsuchiya General Hospital (M. Toyofuku, Y.H., H.U.), Hiroshima, Japan; Department of Cardiovascular of Medicine (T.K.) and Center for Medical Education and Clinical Epidemiology Unit (T.M.), Graduate School of Medicine, Kyoto University, Kyoto, Japan; Chikamori Hospital (K.K.), Kochi, Japan; Hokko Memorial Hospital (Y.N.), Sapporo, Japan; Ehime Prefectural Central Hospital (S.H.), Matsuyama, Japan; Japanese Red Cross Society Wakayama Medical Center (A.M.), Wakayama, Japan; Kishiwada Tokushukai
| | - Shigeru Saito
- From Tsuchiya General Hospital (M. Toyofuku, Y.H., H.U.), Hiroshima, Japan; Department of Cardiovascular of Medicine (T.K.) and Center for Medical Education and Clinical Epidemiology Unit (T.M.), Graduate School of Medicine, Kyoto University, Kyoto, Japan; Chikamori Hospital (K.K.), Kochi, Japan; Hokko Memorial Hospital (Y.N.), Sapporo, Japan; Ehime Prefectural Central Hospital (S.H.), Matsuyama, Japan; Japanese Red Cross Society Wakayama Medical Center (A.M.), Wakayama, Japan; Kishiwada Tokushukai
| | - Takaaki Isshiki
- From Tsuchiya General Hospital (M. Toyofuku, Y.H., H.U.), Hiroshima, Japan; Department of Cardiovascular of Medicine (T.K.) and Center for Medical Education and Clinical Epidemiology Unit (T.M.), Graduate School of Medicine, Kyoto University, Kyoto, Japan; Chikamori Hospital (K.K.), Kochi, Japan; Hokko Memorial Hospital (Y.N.), Sapporo, Japan; Ehime Prefectural Central Hospital (S.H.), Matsuyama, Japan; Japanese Red Cross Society Wakayama Medical Center (A.M.), Wakayama, Japan; Kishiwada Tokushukai
| | - Kazuaki Mitsudo
- From Tsuchiya General Hospital (M. Toyofuku, Y.H., H.U.), Hiroshima, Japan; Department of Cardiovascular of Medicine (T.K.) and Center for Medical Education and Clinical Epidemiology Unit (T.M.), Graduate School of Medicine, Kyoto University, Kyoto, Japan; Chikamori Hospital (K.K.), Kochi, Japan; Hokko Memorial Hospital (Y.N.), Sapporo, Japan; Ehime Prefectural Central Hospital (S.H.), Matsuyama, Japan; Japanese Red Cross Society Wakayama Medical Center (A.M.), Wakayama, Japan; Kishiwada Tokushukai
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Akiyama T, Inamori M, Akimoto K, Iida H, Mawatari H, Endo H, Ikeda T, Nozaki Y, Yoneda K, Sakamoto Y, Fujita K, Yoneda M, Takahashi H, Hirokawa S, Goto A, Abe Y, Kirikoshi H, Kobayashi N, Kubota K, Saito S, Nakajima A. Risk factors for the progression of endoscopic Barrett's epithelium in Japan: a multivariate analysis based on the Prague C & M Criteria. Dig Dis Sci 2009; 54:1702-7. [PMID: 19003532 DOI: 10.1007/s10620-008-0537-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [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] [Received: 10/30/2007] [Accepted: 09/11/2008] [Indexed: 01/10/2023]
Abstract
PURPOSE To determine the prevalence and progression of Barrett's epithelium and associated risk factors in Japan. METHODS The study population comprised 869 cases. Endoscopic Barrett's epithelium was diagnosed based on the Prague C & M Criteria. The correlations of clinical factors with the prevalence and progression of endoscopic Barrett's epithelium were examined. RESULTS Endoscopic Barrett's epithelium was diagnosed in 374 cases (43%), in the majority of which the diagnosis was short-segment Barrett's esophagus. The progression of Barrett's epithelium was identified in 47 cases. In univariate and multiple logistic regression analyses, aging, smoking habit, and erosive esophagitis were significantly associated with the prevalence of Barrett's epithelium, whereas aging and erosive esophagitis, especially severe erosive esophagitis, were significant contributing factors to the progression of Barrett's epithelium. CONCLUSIONS Forty-three percent of the total study population was diagnosed as having endoscopic Barrett's epithelium. During the follow-up period, 12.6% of the cases with Barrett's epithelium exhibited progression which was associated with aging and severe erosive esophagitis.
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Affiliation(s)
- T Akiyama
- Division of Gastroenterology, Yokohama City University Hospital, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan
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37
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Sugiyama M, Funauchi M, Yamagata T, Nozaki Y, Yoo BS, Ikoma S, Kinoshita K, Kanamaru A. Predominant inhibition of Th1 cytokines in New Zealand black/white F1 mice treated with FK506. Scand J Rheumatol 2009; 33:108-14. [PMID: 15163112 DOI: 10.1080/03009740310004351] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The T-helper 1/T-helper 2 (Th1/Th2) cell balance was examined in 6-month-old New Zealand black/white F1 (B/WF1) mice treated with an immunosuppressive agent, FK506. The survival rate of mice treated with 10 mg/kg/day of FK506 was 7/8, while that of those treated with 2.5 mg/kg/day was 5/8, and 4/8 after treatment for 8 weeks with placebo. Proteinuria, which was already positive in all mice before the treatment, in the seven of eight mice treated with 10 mg/kg/day remained mildly positive (< or = 1+), while seven of eight mice treated with 2.5 mg/kg/day and six of eight mice treated with the placebo showed severe proteinuria (> or = 2+). Pathological changes in the kidneys of mice treated with 10 mg/kg/day of FK506 were less severe than in mice treated with the placebo or 2.5 mg/kg/day of FK506. Expression of mRNA was unchanged for all cytokines determined in the groups treated with 2.5 mg/kg/day of FK506 or placebo. In contrast, expression of mRNA for interleukin (IL)-2, and interferon (IFN)-gamma was suppressed, while that for IL-4 and IL-10 was not suppressed in the group treated with 10 mg/kg of FK506. The serum levels of IgG-class anti-DNA antibodies, which had been elevated before the treatment, were suppressed--especially in the IgG2a subclass--and the deposition of IgG2a and IgG2b in the glomeruli was reduced in the group treated with 10 mg/kg/day of FK506 compared with the other groups. These findings suggest that an improvement in the lupus nephritis of 6-month-old B/WF1 mice induced by FK506 might be associated with a predominant inhibition of Th1 cytokine.
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Affiliation(s)
- M Sugiyama
- Division of Haematology, Nephrology, and Rheumatology, Kinki University School of Medicine, Osaka, Japan.
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38
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Abe Y, Inamori M, Uchiyama T, Iida H, Akimoto K, Mawatari H, Nozaki Y, Hosono K, Endo H, Akiyama T, Yoneda K, Fujita K, Yoneda M, Takahashi H, Goto A, Kobayashi N, Kirikoshi H, Kubota K, Saito S, Nakajima A. Education and imaging. Gastrointestinal: Aneurysmal artery in a gastric ulcer after endoscopic hemostasis. J Gastroenterol Hepatol 2009; 24:323. [PMID: 19215338 DOI: 10.1111/j.1440-1746.2008.05765.x] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Affiliation(s)
- Y Abe
- Gastroenterology Division, Yokohama City University School of Medicine, Japan
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39
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Fujita K, Nozaki Y, Wada K, Yoneda M, Endo H, Takahashi H, Iwasaki T, Inamori M, Abe Y, Kobayashi N, Kirikoshi H, Kubota K, Saito S, Nagashima Y, Nakajima A. Effectiveness of antiplatelet drugs against experimental non-alcoholic fatty liver disease. Gut 2008; 57:1583-91. [PMID: 18596193 DOI: 10.1136/gut.2007.144550] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.1] [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: 12/25/2022]
Abstract
OBJECTIVE No effective drugs have been developed to date to prevent or treat non-alcoholic fatty liver disease (NAFLD), although diet modification and exercise to improve obesity have been attempted. Therefore, development of a novel drug/strategy to treat NAFLD is urgently needed. In the present study, a novel concept is proposed for the treatment of NAFLD. METHODS Fisher 344 male rats were given a choline-deficient, l-amino acid-defined (CDAA) diet or a high-fat high-calorie (HF/HC) diet with or without the antiplatelet agents, aspirin, ticlopidine or cilostazol for 16 weeks. Liver steatosis, inflammation and fibrosis, and the possible mechanisms involved were investigated. RESULTS All three antiplatelet drugs, namely aspirin, ticlopidine and cilostazol, significantly attenuated liver steatosis, inflammation and fibrosis in the CDAA diet group. Of the three agents, cilostazol was the most effective, and the drug also suppressed HF/HC diet-induced liver steatosis. Cilostazol appeared to exert its beneficial effect against NAFLD by suppressing mitogen-activated protein kinase activation induced by oxidative stress and platelet-derived growth factor via intercepting signal transduction from Akt to c-Raf. CONCLUSION Antiplatelet agents, especially cilostazol, offer the promise of becoming key agents for the treatment of NAFLD.
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Affiliation(s)
- K Fujita
- Division of Gastroenterology, Yokohama City University Graduate School of Medicine, 3-9 Fuku-ura, Kanazawa-ku, Yokohama 236-0004, Japan
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40
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Nozaki Y, Kakumoto M, Ohta M, Yukimatsu K, Chien YW. A New Transmucosal Therapeutic System: Overview of Formulation Development and in Vitro/In Vivo Clinical Performance. Drug Dev Ind Pharm 2008. [DOI: 10.3109/03639049309038767] [Citation(s) in RCA: 2] [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: 11/13/2022]
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Yukimatsu K, Nozaki Y, Kakumoto M, Ohta M. Development of a Trans-Mucosal Controlled-Release Device for Systemic Delivery of Antianginal Drugs Pharmacokinetics and Pharmacodynamics. Drug Dev Ind Pharm 2008. [DOI: 10.3109/03639049409038315] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Nozaki Y, Kakumoto M, Ohta M, Yukimatsu K, Chien YW. A New Transmucosal Therapeutic System: Overview of Formulation Development and in Vitro/in Vivo Clinical Performance. Drug Dev Ind Pharm 2008. [DOI: 10.3109/03639049309050167] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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43
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Yoneda M, Saito S, Ikeda T, Fujita K, Mawatari H, Kirikoshi H, Inamori M, Nozaki Y, Akiyama T, Takahashi H, Abe Y, Kubota K, Iwasaki T, Terauchi Y, Togo S, Nakajima A. Hepatitis C virus directly associates with insulin resistance independent of the visceral fat area in nonobese and nondiabetic patients. J Viral Hepat 2007; 14:600-7. [PMID: 17697011 DOI: 10.1111/j.1365-2893.2006.00836.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Insulin resistance (IR) is known to be associated with the visceral adipose tissue area. Elucidation of the relationship between hepatitis C virus (HCV) and IR is of great clinical relevance, because IR promotes liver fibrosis. In this study, we tested the hypothesis that HCV infection by itself may promote IR. We prospectively evaluated 47 patients with chronic HCV infection who underwent liver biopsy. Patients with obesity, type 2 diabetes mellitus (DM), or a history of alcohol consumption were excluded. IR was estimated by calculation of the modified homeostasis model of insulin resistance (HOMA-IR) index. Abdominal fat distribution was determined by computed tomography. Fasting blood glucose levels were within normal range in all the patients. The results of univariate analysis revealed a significant correlation between the quantity of HCV-RNA and the HOMA-IR (r = 0.368, P = 0.0291). While a significant correlation between the visceral adipose tissue area and the HOMA-IR was also observed in the 97 control, nondiabetic, non-HCV-infected patients (r = 0.398, P < 0.0001), no such significant correlation between the visceral adipose tissue area and the HOMA-IR (r = 0.124, P = 0.496) was observed in the patients with HCV infection. Multiple regression analysis with adjustment for age, gender and visceral adipose tissue area revealed a significant correlation between the HCV-RNA and the HOMA-IR (P = 0.0446). HCV is directly associated with IR in a dose-dependent manner, independent of the visceral adipose tissue area. This is the first report to demonstrate the direct involvement of HCV and IR in patients with chronic HCV infection.
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Affiliation(s)
- M Yoneda
- Division of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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Kimura S, Okazaki M, Higashihara H, Nozaki Y, Haruno M, Urakawa H, Koura S, Shinagawa Y, Nonokuma M. Analysis of the origin of the right inferior phrenic artery in 178 patients with hepatocellular carcinoma treated by chemoembolization via the right inferior phrenic artery. Acta Radiol 2007; 48:728-33. [PMID: 17729002 DOI: 10.1080/02841850701376334] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND No previous report has described the level of the origin of the right inferior phrenic artery (RIPA) based on an analysis of the relationships between the level of the RIPA, the celiac artery (CA), the superior mesenteric artery (SMA), and the right renal artery (RRA) in a series of cases. PURPOSE To evaluate the origin of the RIPA by retrospectively analyzing angiographic findings in 178 patients with hepatocellular carcinoma (HCC) who underwent transcatheter arterial chemoembolization (TACE) via the RIPA. MATERIAL AND METHODS In patients treated with intraarterial chemoembolization for HCC, additional superselective chemoembolization of the RIPA branches was necessary in 178 cases. We analyzed the level of the origin of the RIPA in these patients according to the relationships between the level of the origin of the RIPA, the CA, the SMA, and the RRA on angiography. RESULTS Among the 178 cases, the RIPA arose from 1) the aorta directly in 102 cases (57%), 2) the CA in 53 (30%), 3) the left gastric artery (LGA) in three (2%), 4) the dorsal pancreatic artery (DPA) in one (1%), and 5) the RRA in 19 (11%). The level of the origin of the RIPA that originated directly from the aorta was supraceliac in 56 cases (32%), between the CA and the SMA in 31 (17%), and between the SMA and the RRA in 15 (8%). CONCLUSION In our study, the RIPA originated from the aorta between the CA and the SMA directly in 17% of cases. When it is difficult to identify the origin of the RIPA, we must keep in mind that the RIPA may originate from the right part of the aorta within the small distance between the SMA and the CA.
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Affiliation(s)
- S Kimura
- Department of Radiology, Fukuoka University Hospital, 7-45-1 Nanakuma, Jyonan-ku, Fukuoka City, Fukuoka 814-0180, Japan.
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Murakami H, Igarashi K, Igarashi Y, Urasawa K, Sato K, Nozaki Y, Takenaka T, Tanaka H, Hase M, Hirogami M, Makiguchi M. [Influence of number of citizens greater than 50 years of age on prevalence of acute myocardial infarction: epidemiological study of Sapporo residents]. J Cardiol 2007; 50:167-174. [PMID: 17941192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
BACKGROUND Epidemiological studies have investigated the prevalence of acute myocardial infarction (AMI) in towns, medium cities and counties in Japan. The prevalence of AMI in a large city such as Sapporo has never been reported because of the difficulty of monitoring all patients with AMI. The population of middle-aged and senior residents has increased dramatically in Japan, and the impact of aging population on the prevalence of AMI is unknown. OBJECTIVES This study determined the prevalence of AMI in Sapporo in 2003, and investigated the relationship between the population of older citizens and the prevalence of AMI within individual regions of Sapporo. METHODS A questionnaire designed to focus on AMI was sent to every hospital in Sapporo offering services in internal medicine, cardiology, cardiovascular surgery, or surgery. Clinical and epidemiological data was requested on all patients presenting with AMI in 2003, including: municipal ward of patient's address, age, sex, whether hospitalization occurred via ambulance or through the out-patient clinic, whether the patient was transferred to another hospital for further treatment, whether the patient died, or was discharged alive. RESULTS Responses were received from 114 of 140 hospitals (81.4%), including all 32 hospitals performing cineangiography. As 799 patients were reported with AMI in 2003, the prevalence of AMI of Sapporo in 2003 was 42.9/100,000 residents. Forty-six patients was excluded because the absence of data on the questionnaire. Data was available for analysis in 753 AMI patients (537 males and 216 females, range 30-101 years, mean age 67.9 years). The prevalence of AMI was 60.8/100,000 in males and 22.1/100,000 in females (p < 0.05). Ninety-four deaths (57 males and 37 females) were attributed to AMI (range 48-99 years, mean age 75.2 years), for an overall mortality rate of 12.5%. AMI was a less frequent cause of death in the female population than the male population (male 6.5/100,000 and female 3.8/100,000, p < 0.05), but AMI was more frequently fatal in women (10.6% in males vs 17.1% in females, p < 0.05). Both AMI and fatality were more common with increasing age. Sapporo has 10 municipal wards. The prevalence of AMI in 3 wards was significantly higher than in the other municipal wards, these differences were more prominent when the prevalence of AMI was corrected for the population distribution of patients > or = 50 years old (p < 0.05). Significant correlations between the number of citizens and number of patients with AMI were observed in every age cohort divided into 10 years old > or = 50 years old, and the slopes of those regression lines increased with age cohort. Admission was via the outpatient clinic for 364 patients and 341 patients arrived by ambulance. The fatality rate did not differ between the two routes for admission. CONCLUSIONS AMI was more frequent in men than women in Sapporo, but AMI was more frequently fatal in females. Prevalence and fatality rate of AMI increased with age, and prevalence of AMI was determined by the number of senior citizens in certain wards.
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Affiliation(s)
- Hironori Murakami
- Division of Cardiology, Cardiovascular Center, Teine Keijinkai Hospital, Sapporo.
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Funauchi M, Shimadzu H, Tamaki C, Yamagata T, Nozaki Y, Sugiyama M, Ikoma S, Kinoshita K. Survival study by organ disorders in 306 Japanese patients with systemic lupus erythematosus: results from a single center. Rheumatol Int 2006; 27:243-9. [PMID: 16944153 DOI: 10.1007/s00296-006-0201-9] [Citation(s) in RCA: 24] [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] [Received: 02/11/2006] [Accepted: 08/06/2006] [Indexed: 10/24/2022]
Abstract
Survival rate and causes of death according to the period of diagnosis and four accompanying organ disorders were analyzed in 306 Japanese patients with systemic lupus erythematosus. The survival rate was gradually improved, and the survival rate during 5- and 10-year periods of the patients diagnosed in 1990-2004 was 94 and 92%, 20-year period of those in 1980-1989 was 77%, 30-year period of those in 1975-1979 was 71%, respectively. Survival rate of those with serositis, pulmonary hypertension, and positive family history tended to be reduced, while that of the cases with neuropsychiatric disorder and renal disorder was significantly reduced. Overlapping of these organ disorders was an important factor for a poor prognosis. Bronchopneumonia and cerebrovascular accidents were frequent causes of death, and treatment for anti-phospholipid antibody syndrome and life-style diseases such as hypertension and arteriosclerosis was thought to be important for a good outcome.
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Affiliation(s)
- M Funauchi
- Department of Nephrology and Rheumatology, Kinki University School of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka, 589-8511, Japan.
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Harada S, Nozaki Y, Yagou Y, Hiraga Y, Gatanaga H, Uemura N, Kimura S, Oka S. A Woman Who Excreted a Tape-Like Substance. Clin Infect Dis 2006. [DOI: 10.1086/499965] [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: 11/03/2022] Open
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Funauchi M, Tamaki C, Yamagata T, Nozaki Y, Sugiyama M, Ikoma S, Kinoshita K. A case of autoimmune polyglandular syndrome type III with a slowly progressive form of type-1 diabetes mellitus that manifested in the course of autoimmune diseases. Scand J Rheumatol 2006; 35:81-2. [PMID: 16467052 DOI: 10.1080/03009740510026742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Nozaki Y, Yamagata T, Yoo BS, Sugiyama M, Ikoma S, Kinoshita K, Funauchi M, Kanamaru A. The beneficial effects of treatment with all-trans-retinoic acid plus corticosteroid on autoimmune nephritis in NZB/WF mice. Clin Exp Immunol 2005; 139:74-83. [PMID: 15606616 PMCID: PMC1809273 DOI: 10.1111/j.1365-2249.2005.02654.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Corticosteroids are highly effective anti-inflammatory or immunosuppressive drugs used commonly to treat human systemic lupus erythematosus (SLE). All-trans-retinoic acid (ATRA), which belongs to a class of retinoids that exert immunomodulatory and anti-inflammatory functions, can also suppress the development of lupus nephritis in an animal model. However, both agents can inflict serious adverse effects. Here, we have asked whether ATRA can serve as a steroid-sparing drug in the treatment of lupus nephritis. To examine the efficacy of combining predonisolone (PSL) with ATRA, we treated intraperitoneally New Zealand black/white F1 (NZB/W F1) mice with PSL, ATRA or both agents. Survival rate and proteinuria were determined once a month. Cytokine and anti-DNA antibody production were determined by enzyme-linked immunosorbent assay (ELISA) and reverse transcription-polymerase chain reaction (RT-PCR). Renal histopathology was observed by haematoxylin and periodic acid Schiff (PAS), immunoperoxidase and immunohistochemical assay. Survival rate and proteinuria were improved in all experimental groups, and were much improved in the mice receiving the combination of ATRA and PSL (P <0.05). A single administration of ATRA reduced the Th1 [interleukin (IL)-2, interferon (IFN)-gamma and IL-12], and a Th2 (IL-4) cytokine level, as effectively as administration of PSL. ATRA also suppressed the expression of inducible nitric oxide synthetase (iNOS) and monocyte chemoattractant protein-1 (MCP-1) in the kidney. The combination of PSL and ATRA significantly reduced IgG2 (especially IgG2b)-specific anti-DNA antibody levels in comparison with administration of either agent alone. These data suggest that ATRA might have the potential to act as a new therapeutic and steroid-sparing drug against lupus nephritis.
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Affiliation(s)
- Y Nozaki
- Department of Hematology, Nephrology and Rheumatology, Kinki University School of Medicine, Osaka, Japan.
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Kawai Y, Morita K, Nozaki Y, Ohkusa T, Sakurai M, Tamaki N. Diagnostic Value of 123I-Betamethyl-p-Iodophenyl-Pentadecanoic Acid (BMIPP) Single Photon Emission Computed Tomography (SPECT) in Patients With Chest Pain-Comparison With Rest-Stress 99mTc-Tetrofosmin SPECT and Coronary Angiography-. Circ J 2004; 68:547-52. [PMID: 15170090 DOI: 10.1253/circj.68.547] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [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
BACKGROUND Basic and clinical studies have indicated that 15-(p-[(123)I] iodophenyl)-3-(R, S) methylpentadecanoic acid (BMIPP) single photon emission computed tomography (SPECT) can identify ischemic myocardium without evidence of myocardial infarction by the regional decline of tracer uptake. The present study compared BMIPP SPECT with rest-stress myocardial perfusion imaging (MPI) findings and coronary angiography (CAG) in 150 patients with acute chest pain. METHODS AND RESULTS Patients with acute chest pain who underwent all of the following tests were selected: MPI at rest-stress, BMIPP SPECT at rest and CAG. Organic coronary artery stenosis (>or=75%) was observed in 46 patients, 27 patients had total or subtotal coronary occlusion by spasm in the spasm provocation test on CAG and the remaining 77 patients had no significant coronary artery stenosis or spasm. The sensitivity of BMIPP at rest to detect organic stenosis was significantly higher (54%) than that of rest-MPI (33%, p<0.005), but lower than that of stress-MPI (76%, p=0.05). The sensitivity of BMIPP at rest to detect spasm was significantly higher (63%) than that of both rest-MPI (15%; p<0.001) and stress-MPI (19%; p<0.001). Overall, the sensitivity of BMIPP at rest to detect both organic stenosis and spasm was significantly higher (58%) than that of rest-MPI (26%; p<0.001), despite having no significance with that of stress-MPI (55%). The specificity was not significantly different among the three imaging techniques. CONCLUSION Resting BMIPP SPECT is an alternative method to stress MPI for identifying patients with not only organic stenosis but also spasm without the need for a stress examination.
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Affiliation(s)
- Yuko Kawai
- Department of Cardiovascular Medicine, Hokko Memorial Hospital, Japan
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