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Tsutsui K, Terazaki Y, Kanai R, Ishii M, Ohno S, Sasaki Y, Kitamura A, Kudo D, Sasaki W, Tanaka N, Narita M, Matsumoto K, Mori H, Ikeda Y, Arai T, Nakano S, Kato R. Postoperative intravenous patient-controlled analgesia improves pain management after subcutaneous implantable defibrillator implantation. J Arrhythm 2024; 40:349-355. [PMID: 38586843 PMCID: PMC10995597 DOI: 10.1002/joa3.13006] [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: 12/14/2023] [Revised: 01/23/2024] [Accepted: 02/13/2024] [Indexed: 04/09/2024] Open
Abstract
Objective Postoperative pain is a major issue with subcutaneous implantable cardioverter defibrillators (S-ICD). In 2020, we introduced intravenous patient-controlled analgesia (IV-PCA) in addition to the conventional, request-based analgesia for postoperative pain control in S-ICD. To determine the effect and safety, we quantitatively assessed the effect of IV-PCA after S-ICD surgery over conventional methods. Methods During the study period, a total of 113 consecutive patients (age, 50.1 ± 15.5 years: males, 101) underwent a de novo S-ICD implantation under general anesthesia. While the postoperative pain was addressed with either request-based analgesia (by nonsteroid anti-inflammatory drugs, N = 68, dubbed as "PCA absent") or fentanyl-based IV-PCA in addition to the standard care (N = 45, dubbed as "PCA present"). The degree of postoperative pain from immediately after surgery to 1 week were retrospectively investigated by the numerical rating scale (NRS) divided into four groups at rest and during activity (0: no pain, 1-3: mild pain, 4-6: moderate pain, 7-10: severe pain). Results Although IV-PCA was removed on Day 1, it was associated with continued better pain control compared to PCA absent group. At rest, the proportion of patients expressing pain (mild or more) was significantly lower in the PCA present group from Day 0 to Day 4. In contrast to at rest, a better pain control continued through the entire study period of 7 days. No serious adverse events were observed. A few patients experienced nausea in both groups and the inter-group difference was not found significant. Conclusion IV-PCA suppresses postoperative pain in S-ICD without major safety concerns.
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Affiliation(s)
- Kenta Tsutsui
- Department of CardiologySaitama Medical University International Medical CenterSaitamaJapan
| | - Yoshitaka Terazaki
- Department of NursingSaitama Medical University International Medical CenterSaitamaJapan
| | - Risa Kanai
- Department of NursingSaitama Medical University International Medical CenterSaitamaJapan
| | - Masako Ishii
- Department of NursingSaitama Medical University International Medical CenterSaitamaJapan
| | - Seika Ohno
- Department of AnesthesiologySaitama Medical University International Medical CenterSaitamaJapan
| | - Yoko Sasaki
- Department of AnesthesiologySaitama Medical University International Medical CenterSaitamaJapan
| | - Akira Kitamura
- Department of AnesthesiologySaitama Medical University International Medical CenterSaitamaJapan
| | - Daisuke Kudo
- Department of CardiologySaitama Medical University International Medical CenterSaitamaJapan
| | - Wataru Sasaki
- Department of CardiologySaitama Medical University International Medical CenterSaitamaJapan
| | - Naomichi Tanaka
- Department of CardiologySaitama Medical University International Medical CenterSaitamaJapan
| | - Masataka Narita
- Department of CardiologySaitama Medical University International Medical CenterSaitamaJapan
| | - Kazuhisa Matsumoto
- Department of CardiologySaitama Medical University International Medical CenterSaitamaJapan
| | - Hitoshi Mori
- Department of CardiologySaitama Medical University International Medical CenterSaitamaJapan
| | - Yoshifumi Ikeda
- Department of CardiologySaitama Medical University International Medical CenterSaitamaJapan
| | - Takahide Arai
- Department of CardiologySaitama Medical University International Medical CenterSaitamaJapan
| | - Shintaro Nakano
- Department of CardiologySaitama Medical University International Medical CenterSaitamaJapan
| | - Ritsushi Kato
- Department of CardiologySaitama Medical University International Medical CenterSaitamaJapan
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Kamiya T, Iimori T, Maeda Y, Yada N, Hayashi N, Iguchi H, Narita M. Administered dosage and effective dose estimated from 81Rb-rubidium hydroxide for lung ventilation scintigraphy using 81mKr noble gas. Radiat Prot Dosimetry 2024; 200:149-154. [PMID: 37987214 DOI: 10.1093/rpd/ncad285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 10/23/2023] [Accepted: 10/30/2023] [Indexed: 11/22/2023]
Abstract
The aim of this study was to estimate the administered dosage of 81mKr noble gas as calculated by the radioactivity of 81Rb-rubidium hydroxide (81RbOH). The administered dosage was regarded as the total amount of 81mKr noble gas. The radioactivity of 81mKr was calculated using the radioactivity of 81RbOH at the examination, the beginning of inhalation, the inhalation duration and the attenuation volume from the generator to the patient for 81mKr noble gas. In addition, we created an Internet survey and asked National University Hospital in Japan to respond to questions regarding the parameters of concern. Survey responses were provided by 38 hospitals (response rate was 90.5%). Twenty-seven hospitals (64.3%) examined lung ventilation scintigraphy using 81mKr noble gas. The mean administered dosage and the effective dose of lung ventilation scintigraphy using 81mKr noble gas were 35.8 ± 22.1 GBq and 0.97 ± 0.60 mSv, respectively.
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Affiliation(s)
- Takashi Kamiya
- Department of Medical Technology, Osaka University Hospital, Suita 5650871, Japan
| | - Takashi Iimori
- Department of Radiology, Chiba University Hospital, Chiba 2608677, Japan
| | - Yukito Maeda
- Department of Clinical Radiology, Kagawa University Hospital, Kita-gun 7610793, Japan
| | - Nobuhiro Yada
- Department of Radiology, Shimane University Hospital, Izumo 6938501, Japan
| | - Naoya Hayashi
- Department of Medical Technology, Kochi Medical School Hospital, Nankoku 7830043, Japan
| | - Harumi Iguchi
- Department of Radiology, Shiga University of Medical Science Hospital, Otsu 5202192, Japan
| | - Masataka Narita
- Department of Radiology, Hirosaki University Hospital, Hirosaki 0368563, Japan
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Narita M, Higuchi S, Kawano D, Sasaki W, Matsumoto K, Tanaka N, Mori H, Tsutsui K, Ikeda Y, Arai T, Nakano S, Kato R, Matsumoto K. Does the same lesion index mean the same efficacy and safety profile: influence of the differential power, time, and contact force on the lesion size and steam pops under the same lesion index. J Interv Card Electrophysiol 2024; 67:147-155. [PMID: 37311981 DOI: 10.1007/s10840-023-01583-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 05/28/2023] [Indexed: 06/15/2023]
Abstract
BACKGROUND The lesion index (LSI) helps predict the lesion size and is widely used in ablation of various types of arrhythmias. However, the influence of the ablation settings on the lesion formation and incidence of steam pops under the same LSI value remains unclear. METHODS Using a contact force (CF) sensing catheter (TactiCath™) in an ex vivo swine left ventricle model, RF lesions were created with a combination of various power steps (30 W, 40 W, 50 W) and CFs (10 g, 20 g, 30 g, 40 g, 50 g) under the same LSI values (5.2 and 7.0). The correlation between the lesion formation and ablation parameters was evaluated. RESULTS Ninety RF lesions were created under a target LSI value of 5.2, and eighty-four were developed under a target LSI value of 7.0. In the LSI 5.2 group, the resultant lesion size widely varied according to the ablation power, and a multiple regression analysis indicated that the ablation energy delivered was the best predictor of the lesion formation. To create a lesion depth > 4 mm, an ablation energy of 393 J is the best cutoff value, suggesting a possibility that ablation energy may be used as a supplemental marker that better monitors the progress of the lesion formation in an LSI 5.2 ablation. In contrast, such inconsistency was not obvious in the LSI 7.0 group. Compared with 30 W, the 50-W ablation exhibited a higher incidence of steam pops in both the LSI 5.2 and 7.0 groups. CONCLUSIONS The LSI-lesion size relationship was not necessarily consistent, especially for an LSI of 5.2. To avoid any unintentional, weak ablation, the ablation energy may be a useful supportive parameter (393 J as a cutoff value for a 4-mm depth) during ablation with an LSI around 5.2. Thanks to a prolonged ablation time, the LSI-lesion size relationship is consistent for an LSI of 7.0. However, it is accompanied by a high incidence of steam pops. Care should be given to the ablation settings even when the same LSI value is used.
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Affiliation(s)
- Masataka Narita
- Department of Cardiology, Saitama Medical University International Medical Center, Yamane, Hidaka, Saitama, 1397-1, Japan
| | - Syunta Higuchi
- Department of Medical Engineer, Saitama Medical University International Medical Center, Hidaka, Japan
| | - Daisuke Kawano
- Department of Cardiology, Saitama Medical University International Medical Center, Yamane, Hidaka, Saitama, 1397-1, Japan
| | - Wataru Sasaki
- Department of Cardiology, Saitama Medical University International Medical Center, Yamane, Hidaka, Saitama, 1397-1, Japan
| | - Kazuhisa Matsumoto
- Department of Cardiology, Saitama Medical University International Medical Center, Yamane, Hidaka, Saitama, 1397-1, Japan
| | - Naomichi Tanaka
- Department of Cardiology, Saitama Medical University International Medical Center, Yamane, Hidaka, Saitama, 1397-1, Japan
| | - Hitoshi Mori
- Department of Cardiology, Saitama Medical University International Medical Center, Yamane, Hidaka, Saitama, 1397-1, Japan.
| | - Kenta Tsutsui
- Department of Cardiology, Saitama Medical University International Medical Center, Yamane, Hidaka, Saitama, 1397-1, Japan
| | - Yoshifumi Ikeda
- Department of Cardiology, Saitama Medical University International Medical Center, Yamane, Hidaka, Saitama, 1397-1, Japan
| | - Takahide Arai
- Department of Cardiology, Saitama Medical University International Medical Center, Yamane, Hidaka, Saitama, 1397-1, Japan
| | - Shintaro Nakano
- Department of Cardiology, Saitama Medical University International Medical Center, Yamane, Hidaka, Saitama, 1397-1, Japan
| | - Ritsushi Kato
- Department of Cardiology, Saitama Medical University International Medical Center, Yamane, Hidaka, Saitama, 1397-1, Japan
| | - Kazuo Matsumoto
- Department of Cardiology, Saitama Medical University International Medical Center, Yamane, Hidaka, Saitama, 1397-1, Japan
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Weiser-Bitoun I, Mori H, Nabeshima T, Tanaka N, Kudo D, Sasaki W, Narita M, Matsumoto K, Ikeda Y, Arai T, Nakano S, Sumitomo N, Senbonmatsu TA, Matsumoto K, Kato R, Morrell CH, Tsutsui K, Yaniv Y. Age-dependent contribution of intrinsic mechanisms to sinoatrial node function in humans. Sci Rep 2023; 13:18875. [PMID: 37914708 PMCID: PMC10620402 DOI: 10.1038/s41598-023-45101-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 10/16/2023] [Indexed: 11/03/2023] Open
Abstract
Average beat interval (BI) and beat interval variability (BIV) are primarily determined by mutual entrainment between the autonomic-nervous system (ANS) and intrinsic mechanisms that govern sinoatrial node (SAN) cell function. While basal heart rate is not affected by age in humans, age-dependent reductions in intrinsic heart rate have been documented even in so-called healthy individuals. The relative contributions of the ANS and intrinsic mechanisms to age-dependent deterioration of SAN function in humans are not clear. We recorded ECG on patients (n = 16 < 21 years and n = 23 41-78 years) in the basal state and after ANS blockade (propranolol and atropine) in the presence of propofol and dexmedetomidine anesthesia. Average BI and BIV were analyzed. A set of BIV features were tested to designated the "signatures" of the ANS and intrinsic mechanisms and also the anesthesia "signature". In young patients, the intrinsic mechanisms and ANS mainly contributed to long- and short-term BIV, respectively. In adults, both ANS and intrinsic mechanisms contributed to short-term BIV, while the latter also contributed to long-term BIV. Furthermore, anesthesia affected ANS function in young patients and both mechanisms in adult. The work also showed that intrinsic mechanism features can be calculated from BIs, without intervention.
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Affiliation(s)
- Ido Weiser-Bitoun
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa, Israel
- Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Hitoshi Mori
- Saitama Medical University International Medical Center, Saitama, Japan
| | - Taisuke Nabeshima
- Saitama Medical University International Medical Center, Saitama, Japan
| | - Naomichi Tanaka
- Saitama Medical University International Medical Center, Saitama, Japan
| | - Daisuke Kudo
- Saitama Medical University International Medical Center, Saitama, Japan
| | - Wataru Sasaki
- Saitama Medical University International Medical Center, Saitama, Japan
| | - Masataka Narita
- Saitama Medical University International Medical Center, Saitama, Japan
| | | | - Yoshifumi Ikeda
- Saitama Medical University International Medical Center, Saitama, Japan
| | - Takahide Arai
- Saitama Medical University International Medical Center, Saitama, Japan
| | - Shintaro Nakano
- Saitama Medical University International Medical Center, Saitama, Japan
| | - Naokata Sumitomo
- Saitama Medical University International Medical Center, Saitama, Japan
| | | | - Kazuo Matsumoto
- Saitama Medical University International Medical Center, Saitama, Japan
| | - Ritsushi Kato
- Saitama Medical University International Medical Center, Saitama, Japan
| | - Christopher H Morrell
- Laboratory of Cardiovascular Science, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA
| | - Kenta Tsutsui
- Saitama Medical University International Medical Center, Saitama, Japan.
- Department of Cardiovascular Medicine, Saitama Medical University International Medical Center, Saitama, Japan.
| | - Yael Yaniv
- Faculty of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa, Israel.
- Laboratory of Bioenergetic and Bioelectric Systems, The Faculty of Biomedical Engineering Technion-IIT, Haifa, Israel.
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Kim E, Narita M, Takashima Y, Nakata A, Tani K, Kurihara O. Source efficiency of alpha-emitters applied to the skin surface. Radiat Prot Dosimetry 2023; 199:2010-2014. [PMID: 37819328 DOI: 10.1093/rpd/ncac239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 10/13/2023]
Abstract
Skin surface contamination by alpha-emitters is in itself not hazardous, but it would cause significant internal exposure in the case of injured skin as well as misjudgment in direct in vivo measurements (e.g. lung counting). The present study determined the source efficiency of alpha-emitters (241Am) applied to swine skin samples by analysing the observed alpha-particle energy spectra using advanced alpha-spectrometric simulation. Based on our results, the source efficiency was determined to be 0.365 (alpha-particle s-1 per Bq) on average (c.f. 0.5 in the case of no self-absorption in the source). The decrease in source efficiency would be attributed primarily to the radionuclide entering hair follicles or deep wrinkles. The degradation of the measured spectra from the skin samples indicates the penetration of some radionuclides into the upper layers of the stratum corneum. Although this study was limited to results obtained from swine skin samples, it suggests that irregularities in the skin surface may affect direct alpha measurements.
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Affiliation(s)
- E Kim
- National Institutes for Quantum Science and Technology (QST), Chiba 263-8555, Japan
| | - M Narita
- National Institutes for Quantum Science and Technology (QST), Chiba 263-8555, Japan
| | - Y Takashima
- National Institutes for Quantum Science and Technology (QST), Chiba 263-8555, Japan
| | - A Nakata
- Faculty of Pharmaceutical Sciences, Hokkaido University of Science, 7-Jo 15-4-1 Maeda, Teine, Sapporo 006-8585, Japan
| | - K Tani
- National Institutes for Quantum Science and Technology (QST), Chiba 263-8555, Japan
| | - O Kurihara
- National Institutes for Quantum Science and Technology (QST), Chiba 263-8555, Japan
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Sasaki W, Matsumoto K, Higuchi S, Mori H, Fukaya H, Kawano D, Tanaka N, Narita M, Tsutsui K, Ikeda Y, Arai T, Nakano S, Kato R. Detailed analysis of the lesion formation using a diamond tip catheter in an ex vivo experimental model. J Cardiol 2023:S0914-5087(23)00054-0. [PMID: 36935004 DOI: 10.1016/j.jjcc.2023.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 03/21/2023]
Abstract
BACKGROUND A novel Diamond Temp™ (DT; Medtronic, Minneapolis, MN, USA) catheter has enabled performing a surface temperature-controlled ablation. The chemical vapor deposition diamond of the ablation catheter acts as a thermal radiator and is useful for effective cooling of the ablation catheter tip. However, a detailed analysis of the lesion formation with this catheter remains unknown. METHODS DT catheters were used in an excised swine heart experimental model. A cross-sectional analysis of 60-s lesions [a combination of various energy power settings (30, 40, and 50 W), and various contact forces (CF) (10, 30, and 50 g)] and a longitudinal analysis [a combination of various powers (40 W or 50 W), various CFs (10, 30, and 50 g), and various ablation times (5 s, 10 s, 15 s, 20 s, 25 s, 30 s, and 60 s)] of the DT catheter were analyzed. RESULTS The maximum lesion depth, maximum diameter, and lesion volume with a 10 g ablation were significantly lower than those with a 30 g or 50 g ablation. There were no significant differences in the lesion formation between the 30 g ablation and 50 g ablation under each radiofrequency (RF) power setting. The impedance drops with steam pops were significantly greater than those without steam pops (pop (+) vs. pop (-), 26.2 ± 6.6 Ohm vs. 18.4 ± 7.1 Ohm, p = 0.0001). A non-linear, time-dependent increase in the lesion depth and diameter was observed for all power and CF settings. Comparing the lesion depth and diameter between 40 W and 50 W under the same CF setting and same ablation time, most of the settings had no significant difference. CONCLUSION Ablation lesions created with the DT catheter were similar to other catheters. Similar ablation lesions were created with the 40 W or 50 W ablation under the same CF setting and same ablation time. Regardless of the ablation power, monitoring the general impedance during the RF application was indispensable for a safe procedure.
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Affiliation(s)
- Wataru Sasaki
- Department of Cardiology, Saitama Medical University, International Medical Center, Hidaka, Saitama, Japan
| | - Kazuhisa Matsumoto
- Department of Cardiology, Saitama Medical University, International Medical Center, Hidaka, Saitama, Japan
| | - Syunta Higuchi
- Department of Medical Engineer, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan
| | - Hitoshi Mori
- Department of Cardiology, Saitama Medical University, International Medical Center, Hidaka, Saitama, Japan.
| | - Hidehira Fukaya
- Department of Cardiovascular Medicine, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Daisuke Kawano
- Department of Cardiology, Saitama Medical University, International Medical Center, Hidaka, Saitama, Japan
| | - Naomichi Tanaka
- Department of Cardiology, Saitama Medical University, International Medical Center, Hidaka, Saitama, Japan
| | - Masataka Narita
- Department of Cardiology, Saitama Medical University, International Medical Center, Hidaka, Saitama, Japan
| | - Kenta Tsutsui
- Department of Cardiology, Saitama Medical University, International Medical Center, Hidaka, Saitama, Japan
| | - Yoshifumi Ikeda
- Department of Cardiology, Saitama Medical University, International Medical Center, Hidaka, Saitama, Japan
| | - Takahide Arai
- Department of Cardiology, Saitama Medical University, International Medical Center, Hidaka, Saitama, Japan
| | - Shintaro Nakano
- Department of Cardiology, Saitama Medical University, International Medical Center, Hidaka, Saitama, Japan
| | - Ritsushi Kato
- Department of Cardiology, Saitama Medical University, International Medical Center, Hidaka, Saitama, Japan
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Matsumoto K, Kawano D, Sasaki W, Tanaka N, Narita M, Mori H, Tsutsui K, Ikeda Y, Arai T, Nakano S, Kato R, Matsumoto K. Detailed investigation of the lesion formation with a novel contact force sensing catheter with a mesh‐shaped irrigation tip. J Arrhythm 2023; 39:166-174. [PMID: 37021033 PMCID: PMC10068932 DOI: 10.1002/joa3.12835] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/19/2023] [Accepted: 02/13/2023] [Indexed: 03/02/2023] Open
Abstract
Background Recently, a novel contact force (CF) sensing catheter with mesh-shaped irrigation tip (TactiFlex SE, Abbott) was invented and is expected to be useful for safe and effective radiofrequency ablation. However, this catheter's detailed characteristics of the lesion formation are unknown. Methods With an in vitro model, TactiFlex SE and its predecessor, FlexAbility SE, were used. A cross-sectional analysis of 60 s lesions (combination of various energy power settings [30, 40, and 50 W], and CFs [10, 30, and 50 g]) and longitudinal analysis (combination of various powers [40 or 50 W], CFs [10, 30, and 50 g] and ablation times [10, 20, 30, 40, 50, and 60 s]) of both catheters were analyzed and compared. Results One hundred eighty RF lesions were created in protocol 1 and 300 in protocol 2. The lesion formation, impedance changes, and steam pops characteristics were similar between the two catheters. Higher CFs were related to higher incidences of steam pops. A nonlinear, time-dependent increase in the lesion depth and diameter was observed for all power and CF settings, and linear, positive correlations between the RF delivery time and lesion volume were observed for all power settings. Compared with 40 W, a 50 W ablation created greater lesions. Longer durations with higher CF settings had a higher steam pop incidence. Conclusions The lesion formation and incidence of steam pops with TactiFlex SE and FlexAbility SE were similar. A 40 or 50 W ablation with careful CF control not to exceed 30 g in addition to monitoring impedance drops was required to safely create transmural lesions.
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Affiliation(s)
- Kazuhisa Matsumoto
- Department of Cardiology Saitama Medical University International Medical Center Hidaka Japan
| | - Daisuke Kawano
- Department of Cardiology Saitama Medical University International Medical Center Hidaka Japan
| | - Wataru Sasaki
- Department of Cardiology Saitama Medical University International Medical Center Hidaka Japan
| | - Naomichi Tanaka
- Department of Cardiology Saitama Medical University International Medical Center Hidaka Japan
| | - Masataka Narita
- Department of Cardiology Saitama Medical University International Medical Center Hidaka Japan
| | - Hitoshi Mori
- Department of Cardiology Saitama Medical University International Medical Center Hidaka Japan
| | - Kenta Tsutsui
- Department of Cardiology Saitama Medical University International Medical Center Hidaka Japan
| | - Yoshifumi Ikeda
- Department of Cardiology Saitama Medical University International Medical Center Hidaka Japan
| | - Takahide Arai
- Department of Cardiology Saitama Medical University International Medical Center Hidaka Japan
| | - Shintaro Nakano
- Department of Cardiology Saitama Medical University International Medical Center Hidaka Japan
| | - Ritsushi Kato
- Department of Cardiology Saitama Medical University International Medical Center Hidaka Japan
| | - Kazuo Matsumoto
- Department of Cardiology Saitama Medical University International Medical Center Hidaka Japan
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Kawano D, Mori H, Tsutsui K, Fukaya H, Tanaka N, Narita M, Sasaki W, Matsumoto K, Ikeda Y, Arai T, Nakano S, Kato R. Time dependency in the radiofrequency lesion formation for a local impedance guided catheter in an ex vivo experimental model. J Arrhythm 2022; 38:1080-1087. [DOI: 10.1002/joa3.12789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/08/2022] [Accepted: 09/25/2022] [Indexed: 11/21/2022] Open
Affiliation(s)
- Daisuke Kawano
- Department of Cardiology Saitama Medical University, International Medical Center Hidaka Japan
| | - Hitoshi Mori
- Department of Cardiology Saitama Medical University, International Medical Center Hidaka Japan
| | - Kenta Tsutsui
- Department of Cardiology Saitama Medical University, International Medical Center Hidaka Japan
| | - Hidehira Fukaya
- Department of Cardiovascular Medicine Kitasato University School of Medicine Sagamihara Japan
| | - Naomichi Tanaka
- Department of Cardiology Saitama Medical University, International Medical Center Hidaka Japan
| | - Masataka Narita
- Department of Cardiology Saitama Medical University, International Medical Center Hidaka Japan
| | - Wataru Sasaki
- Department of Cardiology Saitama Medical University, International Medical Center Hidaka Japan
| | - Kazuhisa Matsumoto
- Department of Cardiology Saitama Medical University, International Medical Center Hidaka Japan
| | - Yoshifumi Ikeda
- Department of Cardiology Saitama Medical University, International Medical Center Hidaka Japan
| | - Takahide Arai
- Department of Cardiology Saitama Medical University, International Medical Center Hidaka Japan
| | - Shintaro Nakano
- Department of Cardiology Saitama Medical University, International Medical Center Hidaka Japan
| | - Ritsushi Kato
- Department of Cardiology Saitama Medical University, International Medical Center Hidaka Japan
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Hata T, Seino S, Yokoyama Y, Narita M, Nishi M, Hida A, Shinkai S, Kitamura A, Fujiwara Y. Interaction of Eating Status and Dietary Variety on Incident Functional Disability among Older Japanese Adults. J Nutr Health Aging 2022; 26:698-705. [PMID: 35842760 PMCID: PMC9209632 DOI: 10.1007/s12603-022-1817-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 06/01/2022] [Indexed: 11/01/2022]
Abstract
OBJECTIVES To examine whether eating status and dietary variety were associated with functional disability during a 5-year follow-up analysis of older adults living in a Japanese metropolitan area. DESIGN A 5-year follow-up study. SETTING Ota City, Tokyo, Japan. PARTICIPANTS A total of 10,308 community-dwelling non-disabled adults aged 65-84 years. MEASUREMENTS Eating status was assessed using a self-reported questionnaire. Dietary variety was assessed using the dietary variety score (DVS). Based on the responses, participants were classified according to eating alone or together and DVS categories (low: 0-3; high: 4-10). Functional disability incidence was prospectively identified using the long-term care insurance system's nationally unified database. Multilevel survival analyses calculated the adjusted hazard ratio (HR) and 95% confidence interval (CI) for incident functional disability. RESULTS During a 5-year follow-up, 1,991 (19.3%) individuals had functional disabilities. Eating status or DVS were not independently associated with incident functional disability. However, interaction terms between eating status and DVS were associated with functional disability; HR (95% CI) for eating together and low DVS was 1.00 (0.90-1.11), eating alone and high DVS was 0.95 (0.77-1.17), and eating alone and low DVS was 1.20 (1.02-1.42), compared to those with eating together and high DVS. CONCLUSION Older adults should avoid eating alone or increase dietary variety to prevent functional disability. This can be ensured by providing an environment of eating together or food provision services for eating a variety of foods in the community.
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Affiliation(s)
- T Hata
- Yoshinori Fujiwara, MD, PhD., Tokyo Metropolitan Institute of Gerontology, 35-2 Sakae, Itabashi City, Tokyo 173-0015, Japan, E-mail: , Phone: +81 (3) 3964-3241 ext. 4257, Fax: +81 (3) 3579-4776
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10
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Black DA, McBrien SW, Gersh J, Ghassemieh B, Narita M, Pecha MJ, Tan Y, Horne DJ. TB risk by time since U.S. entry among non-U.S.-born residents of Washington State, USA. Int J Tuberc Lung Dis 2021; 25:560-566. [PMID: 34183101 DOI: 10.5588/ijtld.20.0823] [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] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND: Progress towards TB elimination in the United States will require improved detection and treatment of latent TB infection among non-U.S.-born residents who remain at disproportionate risk of TB disease. To inform targeted testing efforts, we evaluated risk of TB disease among non-U.S.-born residents of Washington State, USA, by region of origin and time from U.S. entry.METHODS: We conducted a retrospective cohort study among non-U.S.-born residents diagnosed with TB disease in Washington State from 2005 to 2014, for which country-specific population estimates were also available. The risk of TB disease among non-U.S.-born residents was estimated by time since U.S. entry, World Bank region of origin, and WHO TB incidence category.RESULTS: Risk of TB disease for non-U.S.-born residents was highest within the first year after U.S. entry. Among persons from countries with high TB incidence who had resided in the United States for more than 20 years, risk for TB remained elevated.CONCLUSION: Elevated risk of developing TB disease among individuals not born in the United States persisted long after U.S. entry, particularly among persons originating from certain regions and from high-burden countries. These findings contribute to evidence supporting a refinement of existing screening guidelines.
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Affiliation(s)
- D A Black
- Department of Epidemiology, University of Washington, Seattle, WA
| | - S W McBrien
- Washington State Department of Health, TB Control Program, Seattle, WA
| | - J Gersh
- Department of Medicine, University of Washington, Seattle, WA
| | - B Ghassemieh
- Department of Medicine, University of Washington, Seattle, WA
| | - M Narita
- Department of Medicine, University of Washington, Seattle, WA, Public Health - Seattle & King County, TB Control Program, Seattle, WA
| | - M J Pecha
- Washington State Department of Health, TB Control Program, Seattle, WA
| | - Y Tan
- Department of Electrical & Computer Engineering, University of Washington, Seattle, WA, USA
| | - D J Horne
- Department of Medicine, University of Washington, Seattle, WA, Department of Global Health, University of Washington, Seattle, WA, USA
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11
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Takada M, Nunomiya T, Masuda A, Matsumoto T, Tanaka H, Nakamura S, Endo S, Nakamura M, Aoyama K, Ueda O, Narita M, Nakamura T. Development of a real-time neutron beam detector for boron neutron capture therapy using a thin silicon sensor. Appl Radiat Isot 2021; 176:109856. [PMID: 34273618 DOI: 10.1016/j.apradiso.2021.109856] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 07/01/2021] [Accepted: 07/02/2021] [Indexed: 10/20/2022]
Abstract
We have developed a new real-time neutron detector, which is able to measure a direct neutron beam of boron neutron capture therapy. The detector consists of both a 40-μm-thick pn diode and around 0.09-μm-thick LiF neutron converter. Experimental results indicate that this neutron detector can measure neutron flux up to 1 × 109 (cm-2 s-1), separately from gamma rays around 500 mGy/h. The measured depth distribution of neutron flux in an acrylic block is in agreement with the activation results of gold.
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Affiliation(s)
- Masashi Takada
- Department of Applied Physics, National Defense Academy of Japan, 1-10-20 Hashirimizu, Yokosuka, Kanagawa 239-8686, Japan.
| | - Tomoya Nunomiya
- Fuji Electric Co. Ltd, 1 Fuji-machi, Hino, Tokyo 191-8502, Japan
| | - Akihiko Masuda
- National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
| | - Tetsuro Matsumoto
- National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
| | - Hiroki Tanaka
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2 Asashiro-Nishi Kumatori-cho, Sennan-gun, Osaka 590-0494, Japan
| | - Satoshi Nakamura
- Department of Medical Physics, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - Satoru Endo
- Quantum Energy Applications, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Masaru Nakamura
- Cancer Intelligence Care Systems Inc., 3-5-7 Ariake, Koto-ku, Tokyo 135-0063, Japan
| | - Kei Aoyama
- Fuji Electric Co. Ltd, 1 Fuji-machi, Hino, Tokyo 191-8502, Japan
| | - Osamu Ueda
- Fuji Electric Co. Ltd, 1 Fuji-machi, Hino, Tokyo 191-8502, Japan
| | - Masataka Narita
- Fuji Electric Co. Ltd, 1 Fuji-machi, Hino, Tokyo 191-8502, Japan
| | - Takashi Nakamura
- Fuji Electric Co. Ltd, 1 Fuji-machi, Hino, Tokyo 191-8502, Japan; Cyclotron and Radioisotope Center, Tohoku University, Aoba Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan
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12
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Kajita N, Yoshida K, Morikawa E, Hirao K, Yokoyama S, Narita M. Predictor of buckwheat allergy in children based on challenge test results: a retrospective observational study in Japan. Eur Ann Allergy Clin Immunol 2021; 54:183-188. [PMID: 34218649 DOI: 10.23822/eurannaci.1764-1489.224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Summary Buckwheat (BW) is a major food allergen and one of the leading causes of food-induced anaphylaxis in Japan. The standard method of diagnosing food allergy is the oral food challenge (OFC). The BW-specific IgE (BW-sIgE) value is used to assess BW allergy but its utility is limited.The aim of the present study was to identify factors with predictive value for the diagnosis of BW allergy using the OFC.We evaluated 37 patients who were classified into the positive or negative group according to their OFC results. Ten patients (27.0%) showed objective or persistent, moderate, subjective symptoms during the OFC. The positive group had a significantly higher BW-sIgE/total IgE ratio than the negative group (p less than 0.001), but the total IgE (p = 0.139) and BW-sIgE (p = 0.130) did not differ significantly. Receiver operator characteristic (ROC) analysis showed that the BW-sIgE/total IgE ratio had a larger area under the curve (AUC, 0.885) than BW-sIgE (AUC, 0.667). The statistically optimal cut-off was 0.0058 for the BW-sIgE/total IgE ratio, which corresponded to a clinical sensitivity and specificity of 90.0% and 81.5%, respectively.BW-s IgE/total IgE ratio may be more useful predictor of BW OFC results than BW-s IgE.
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Affiliation(s)
- N Kajita
- Division of Allergy, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - K Yoshida
- Division of Allergy, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - E Morikawa
- Division of Allergy, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan.,Clinical Research Support Center, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - K Hirao
- Division of Allergy, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - S Yokoyama
- Division of Allergy, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - M Narita
- Division of Allergy, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
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13
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Hoshino D, Hirano H, Edahiro A, Motokawa K, Shirobe M, Watanabe Y, Motohashi Y, Ohara Y, Iwasaki M, Maruoka Y, Yokoyama Y, Narita M, Taniguchi Y, Shinkai S, Kitamura A. Association between Oral Frailty and Dietary Variety among Community-Dwelling Older Persons: A Cross-Sectional Study. J Nutr Health Aging 2021; 25:361-368. [PMID: 33575729 DOI: 10.1007/s12603-020-1538-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To examine the association between the severity of oral frailty (OF), which is one of the comprehensive oral functions evaluated, and dietary variety in community-dwelling older persons. DESIGN Cross-sectional study. SETTING Community-based. PARTICIPANTS A total of 769 community-dwelling older persons aged 65 and over. INTERVENTIONS We examined basic demographic information, functional status, cognitive status, depressive symptoms, medical history, and oral functions of the participants. MEASUREMENTS OF was defined by 1-2 and 3 or more of 6 items of oral function evaluation in the pre-oral frailty and oral frailty groups, respectively. Dietary variety was assessed using the dietary variety score (DVS). The participants were categorized into 3 groups for evaluation: those with a low score (0-2), medium score (3-5), and high score (≥6). Ordinal logistic regression analysis was performed to examine the association between OF and DVS. RESULTS The rate of OF in the participants was 21.6%, and its severity was significantly associated with DVS after adjusting for potential confounders (Pre-OF; adjusted odds ratio [OR] = 1.687, 95% confidence interval [CI] = 1.219-2.335, OF; adjusted OR = 2.857, 95% CI = 1.489-5.484). CONCLUSION The severity of OF was significantly associated with DVS in community-dwelling older persons. This suggests that DVS may be useful in understanding the effects of OF on the nutritional status. Further longitudinal studies are needed to elucidate the association between OF and DVS.
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Affiliation(s)
- D Hoshino
- Daichi Hoshino, Department of Special Needs Dentistry, Division of Community Based Comprehensive Dentistry, School of Dentistry, Showa University, Tokyo 145-8515, Japan, Phone: +81 337 87 1151, Fax: +81 337 85 6403,
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14
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Kitai M, Narita M, Shimada K, Suzuki K, Nakazawa H, Shibutani T, Yamamoto K, Jimi T, Yano H, Shiozaki T, Matsuoka K, Nagao S, Yamaguchi S. What is the best treatment for older patients with invasive cervical carcinoma? Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.667] [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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15
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Narita M, Moriyoshi K. Is the nerve in the inguinal canal really protected by an investing fascia? Is it a real entity? Hernia 2020; 25:1363-1364. [PMID: 32980950 DOI: 10.1007/s10029-020-02308-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 09/14/2020] [Indexed: 12/01/2022]
Affiliation(s)
- M Narita
- Department of Surgery, National Hospital Organization, Kyoto Medical Center, 1-1 Fukakusamukaihata-cho, Fushimi-ku, Kyoto, 612-8555, Japan.
| | - K Moriyoshi
- Department of Diagnostic Pathology, National Hospital Organization, Kyoto Medical Center, 1-1 Fukakusamukaihata-cho, Fushimi-ku, Kyoto, 612-8555, Japan
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16
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Inagaki S, Nakamura T, Hamasaki Y, Yamamoto-Hanada K, Fukuie T, Narita M, Shimosawa T, Murata T, Ohya Y. Prostaglandin D 2 metabolite is not a useful clinical indicator for assessing atopic dermatitis. Clin Exp Dermatol 2020; 46:130-134. [PMID: 32705704 DOI: 10.1111/ced.14393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 06/17/2020] [Accepted: 07/10/2020] [Indexed: 11/29/2022]
Abstract
Prostaglandin D2 (PGD2 ) plays an important role in atopic dermatitis (AD), and 11,15-dioxo-9α-hydroxy-2,3,4,5-tetranorprostan-1,20-dioicacid (PGDM) is a major metabolite of PGD2 . We investigated the relationship between urinary PGDM levels and severity of paediatric AD. In total, 31 patients with AD and 21 healthy controls (HCs) without AD were recruited, and urinary PGDM levels were measured. Of the 31 patients with AD, 14 were reassessed for urinary PGDM after topical steroid therapy. There was no difference in urinary PGDM levels between patients with AD and HCs. Although there was a significant positive correlation between the SCORing Atopic Dermatitis (SCORAD) index and the serum level of thymus and activation-regulated chemokine (TARC), the urinary PGDM levels did not correlate with either SCORAD or serum TARC. Moreover, both SCORAD and serum TARC were significantly improved by topical steroid therapy; however, urinary PGDM levels were not changed. In conclusion, the level of urinary PGD2 metabolites in children with AD is substantially the same as that in HCs even if the disease is severe.
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Affiliation(s)
- S Inagaki
- Allergy Center, National Center for Child Health and Development, Tokyo, Japan
| | - T Nakamura
- Department of Animal Radiology, Graduate School of Agriculture and Life Science, The University of Tokyo, Tokyo, Japan
| | - Y Hamasaki
- Department of Animal Radiology, Graduate School of Agriculture and Life Science, The University of Tokyo, Tokyo, Japan
| | - K Yamamoto-Hanada
- Allergy Center, National Center for Child Health and Development, Tokyo, Japan
| | - T Fukuie
- Allergy Center, National Center for Child Health and Development, Tokyo, Japan
| | - M Narita
- Allergy Center, National Center for Child Health and Development, Tokyo, Japan.,Department of Allergy, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - T Shimosawa
- Department of Clinical Laboratory, International University of Health and Welfare, Chiba, Japan
| | - T Murata
- Department of Animal Radiology, Graduate School of Agriculture and Life Science, The University of Tokyo, Tokyo, Japan
| | - Y Ohya
- Allergy Center, National Center for Child Health and Development, Tokyo, Japan
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17
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Yokono Y, Narita M, Kawamura Y, Kato T, Kudo N, Tsushima M, Toyama Y, Hanada K, Shimada M, Makoto T, Osanai T, Tomita H. P1624Blockade of protease activated receptor-1 signaling attenuates cardiac hypertrophy and fibrosis in renin-overexpressing hypertensive mice. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0383] [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
Introduction
Recent evidences have demonstrated that coagulation pathway is involved in cardiovascular remodeling induced by renin-angiotensin system (RAS), which finally leads to heart failure. Protease activated receptor-1 (PAR-1) is widely expressed in the vasculature and the heart, and plays important roles in pro-inflammatory process in the cardiovascular system. Recently, we demonstrated that the activity of factor Xa (FXa), which functions not only as a coagulation factor but as an agonist for PAR-1, was enhanced in renin-overexpressing hypertensive mice (Ren-Tg).
Purpose
The purpose of this study was to investigate whether inhibition of PAR-1 signaling has protective effects on the progression of heart failure induced by chronic RAS activation in Ren-Tg.
Methods and results
We treated 12–16 weeks-old male wild type mice (WT) and Ren-Tg with continuous subcutaneous infusion of PAR-1 antagonist SCH79797 (25mg/kg/day) or vehicle for 4 weeks. After treatment period, left ventricular (LV) wall thickness calculated as interventricular septum plus posterior wall thickness measured by echocardiography was greater in Ren-Tg than in WT (0.25±0.003 versus 0.18±0.002 mm), and SCH79797 attenuated the increase to 0.22±0.01 mm in Ren-Tg (both p<0.05, respectively). The ratio of heart weight to body weight was greater in Ren-Tg than in WT (6.1±0.4 versus 4.6±0.7 mg/g), and SCH79797 attenuated the increase to 5.2±0.1 mg/g (both p<0.05). The area of cardiac fibrosis evaluated by Masson-trichrome staining was greater in Ren-Tg than in WT (2.6±0.2 versus 1.4±0.3%), and SCH79797 attenuated it to 1.6±0.3% in Ren-Tg (both p<0.05). Cardiac mRNA expressions of tumor necrosis factor-α, transforming growth factor-β1, and β-myosin heavy chain were all greater in Ren-Tg than in WT, and SCH79797 attenuated the increases in Ren-Tg (all p<0.05).
Conclusions
Inhibition of PAR-1 signaling attenuates cardiac hypertrophy and fibrosis in Ren-Tg via inhibition of inflammatory cytokines production. These results support the involvement of PAR signaling in the development of heart failure induced by RAS, and may provide novel therapeutic insights for the treatment of hypertensive heart failure.
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Affiliation(s)
- Y Yokono
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - M Narita
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Y Kawamura
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Kato
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - N Kudo
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - M Tsushima
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Y Toyama
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - K Hanada
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - M Shimada
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Makoto
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Osanai
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - H Tomita
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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18
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Yokoyama Y, Kitamura A, Yoshizaki T, Nishi M, Seino S, Taniguchi Y, Amano H, Narita M, Shinkai S. Score-Based and Nutrient-Derived Dietary Patterns Are Associated with Depressive Symptoms in Community-Dwelling Older Japanese: A Cross-Sectional Study. J Nutr Health Aging 2019; 23:896-903. [PMID: 31641742 DOI: 10.1007/s12603-019-1238-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
OBJECTIVES This study evaluated associations of score-based and nutrient-derived dietary patterns with depressive symptoms in community-dwelling older Japanese. DESIGN Cross-sectional study. SETTING Community-based. PARTICIPANTS 982 community-dwelling adults aged 65 years or older. MEASUREMENTS Score-based pattern was assessed by using dietary variety score (DVS), which covers 10 food group items in Japanese meals. Nutrient-derived dietary patterns were identified by using reduced rank regression (RRR), with folate, vitamin C, magnesium, calcium, iron, and zinc intakes as response variables. Depressive symptoms were assessed with the Geriatric Depression Scale. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated for these dietary patterns in multivariate logistic regression analyses with potential confounders. The lowest consumption category was used as the reference group. RESULTS The prevalence of depressive symptoms was 13.5%. Higher DVS was associated with fewer depressive symptoms (OR=0.52, 95% CI=0.27-1.03 for the highest vs the lowest DVS; P for trend=0.031). The first RRR dietary pattern score was characterized by high intakes of fish, soybean products, potatoes, most vegetables, mushrooms, seaweeds, fruits, and green tea and a low intake of rice and was inversely associated with the prevalence of depressive symptoms (OR=0.53, 95% CI=0.30-0.92; P for trend=0.030). CONCLUSION Greater dietary variety and a dietary pattern characterized by high intakes of fish, soybean products, potatoes, most vegetables, mushrooms, seaweeds, fruit, and green tea and a low intake of rice were consistently associated with lower prevalence of depressive symptoms in community-dwelling older Japanese. Therefore, both patterns identified the components of dietary habits essential to depression prevention.
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Affiliation(s)
- Y Yokoyama
- Yuri Yokoyama, PhD, Research Team for Social Participation and Community Health, Tokyo Metropolitan Institute of Gerontology, 35-2, Sakaecho, Itabashi-ku, Tokyo 173-0015, Japan, Tel: +81(3)3964-3241, Fax: +81(3)3579-4776, E-mail:
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19
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Narita M, Sakakura K, Ohashi J, Ibe T, Yamamoto K, Wada H, Momomura SI, Fujita H. Medically Treated Ventricular Septal Perforation Caused by Takotsubo Cardiomyopathy. Int Heart J 2018; 60:215-219. [PMID: 30464129 DOI: 10.1536/ihj.18-066] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Takotsubo cardiomyopathy is a common disease, but Takotsubo cardiomyopathy complicated by ventricular septal perforation is very rare. We describe the case of a 92-year-old male who had Takotsubo cardiomyopathy complicated by ventricular septal perforation. We treated the patient medically without surgical or catheter interventions. In three weeks, his abnormal wall motion recovered completely, whereas the ventricular septal perforation remained open. He was ambulatory, subsequently discharged, and had been uneventful for one year. In this manuscript, we discuss the importance of non-invasive management for Takotsubo cardiomyopathy complicated by ventricular septal perforation.
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Affiliation(s)
- Masataka Narita
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University
| | - Kenichi Sakakura
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University
| | - Jumpei Ohashi
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University
| | - Tatsuro Ibe
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University
| | - Kei Yamamoto
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University
| | - Hiroshi Wada
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University
| | - Shin-Ichi Momomura
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University
| | - Hideo Fujita
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University
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20
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Amano H, Kitamura A, Yokoyama Y, Narita M, Nishi M, Yoshida H, Fujiwara Y, Shinkai S. RISK FACTORS FOR TYPES OF DEMENTIA CLASSIFIED ON MULTIVARIATE TRAJECTORIES OF COGNITIVE FUNCTIONS BEFORE INCIDENCE. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- H Amano
- Tokyo Metropolitan Institute of Gerontology
| | - A Kitamura
- Tokyo Metropolitan Institute of Gerontology
| | - Y Yokoyama
- Tokyo Metropolitan Institute of Gerontology
| | - M Narita
- Tokyo Metropolitan Institute of Gerontology
| | - M Nishi
- Tokyo Metropolitan Institute of Gerontology
| | | | - Y Fujiwara
- Tokyo Metropolitan Institute of Gerontology
| | - S Shinkai
- Tokyo Metropolitan Institute of Gerontology
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21
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Narita M, Hanada K, Yokono Y, Narita N, Senoo M, Kimura Y, Ichikawa H, Shimada M, Tanaka M, Osanai T, Okumura K, Tomita H. P938A direct factor Xa inhibitor, rivaroxaban, attenuates cardiac hypertrophy and fibrosis in renin-overexpressing hypertensive mice. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p938] [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: 11/15/2022] Open
Affiliation(s)
- M Narita
- Hirosaki University Graduate School of Medicine, Cardiology and Nephrology, Hirosaki, Japan
| | - K Hanada
- Hirosaki University Graduate School of Medicine, Cardiology and Nephrology, Hirosaki, Japan
| | - Y Yokono
- Hirosaki University Graduate School of Medicine, Cardiology and Nephrology, Hirosaki, Japan
| | - N Narita
- Hirosaki University Graduate School of Medicine, Cardiology and Nephrology, Hirosaki, Japan
| | - M Senoo
- Hirosaki University Graduate School of Medicine, Cardiology and Nephrology, Hirosaki, Japan
| | - Y Kimura
- Hirosaki University Graduate School of Medicine, Cardiology and Nephrology, Hirosaki, Japan
| | - H Ichikawa
- Hirosaki University Graduate School of Medicine, Cardiology and Nephrology, Hirosaki, Japan
| | - M Shimada
- Hirosaki University Graduate School of Medicine, Cardiology and Nephrology, Hirosaki, Japan
| | - M Tanaka
- Hirosaki University Graduate School of Medicine, Cardiology and Nephrology, Hirosaki, Japan
| | - T Osanai
- Hirosaki University, Graduate School of Health Sciences, Hirosaki, Japan
| | - K Okumura
- Saiseikai Kumamoto Hospital, Cardiology, Kumamoto, Japan
| | - H Tomita
- Hirosaki University Graduate School of Medicine, Cardiology and Nephrology, Hirosaki, Japan
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22
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Horne DJ, Jones BE, Kamada A, Fukushima K, Winthrop KL, Siegel SAR, Kovacs A, Anthony P, Meekin KA, Bhat S, Kerndt P, Chang A, Koelle DM, Narita M. Multicenter study of QuantiFERON®-TB Gold Plus in patients with active tuberculosis. Int J Tuberc Lung Dis 2018; 22:617-621. [DOI: 10.5588/ijtld.17.0721] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- D. J. Horne
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Department of Global Health, Firland Northwest TB Center, University of Washington, Seattle, Washington
| | - B. E. Jones
- Division of Infectious Diseases, Department of Medicine, University of Southern California, Los Angeles, California, USA
| | - A. Kamada
- National Hospital Organization Hokkaido Medical Center, Sapporo
| | - K. Fukushima
- Division of Respiratory Medicine, Japanese Red Cross Nagasaki Genbaku Isahaya Hospital, Nagasaki, Japan
| | - K. L. Winthrop
- Division of Infectious Diseases, Department of Medicine, Oregon Health & Science University, Portland, School of Public Health, Oregon Health & Science University, Portland State University, Portland, Oregon
| | - S. A. R. Siegel
- School of Public Health, Oregon Health & Science University, Portland State University, Portland, Oregon
| | - A. Kovacs
- Maternal, Child, and Adolescent Virology Research Laboratory, University of Southern California, Los Angeles
| | - P. Anthony
- Maternal, Child, and Adolescent Virology Research Laboratory, University of Southern California, Los Angeles
| | - K. A. Meekin
- Maternal, Child, and Adolescent Virology Research Laboratory, University of Southern California, Los Angeles
| | - S. Bhat
- Division of Infectious Diseases, Department of Medicine, University of Southern California, Los Angeles, California, USA
| | - P. Kerndt
- TB Control Program, Los Angeles County Department of Public Health, Los Angeles, California
| | - A. Chang
- TB Control Program, Los Angeles County Department of Public Health, Los Angeles, California
| | - D. M. Koelle
- Department of Global Health, Division of Allergy and Infectious Diseases, Department of Medicine, Department of Laboratory Medicine, University of Washington, Seattle, Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center,
Seattle, Benaroya Research Institute, Seattle
| | - M. Narita
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Department of Global Health, Firland Northwest TB Center, University of Washington, Seattle, Washington, Benaroya Research Institute, Seattle
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Seino S, Sumi K, Narita M, Yokoyama Y, Ashida K, Kitamura A, Shinkai S. Effects of Low-Dose Dairy Protein Plus Micronutrient Supplementation during Resistance Exercise on Muscle Mass and Physical Performance in Older Adults: A Randomized, Controlled Trial. J Nutr Health Aging 2018; 22:59-67. [PMID: 29300423 DOI: 10.1007/s12603-017-0904-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
OBJECTIVES To investigate whether supplementation with low-dose dairy protein plus micronutrients augments the effects of resistance exercise (RE) on muscle mass and physical performance compared with RE alone among older adults. DESIGN Randomized controlled trial. SETTING Tokyo, Japan. PARTICIPANTS Eighty-two community-dwelling older adults (mean age, 73.5 years) were randomly allocated to an RE plus dairy protein and micronutrient supplementation group or an RE only group (n = 41 each). INTERVENTION The RE plus supplementation group participants ingested supplements with dairy protein (10.5 g/day) and micronutrients (8.0 mg zinc, 12 μg vitamin B12, 200 μg folic acid, 200 IU vitamin D, and others/day). Both groups performed the same twice-weekly RE program for 12 weeks. MEASUREMENTS Whole-body, appendicular, and leg lean soft-tissue mass (WBLM, ALM, and LLM, respectively) with dual-energy X-ray absorptiometry, physical performance, biochemical characteristics, nutritional intake, and physical activity were measured before and after the intervention. Data were analyzed by using linear mixed-effects models. RESULTS The groups exhibited similar significant improvements in maximum gait speed, Timed Up-and-Go, and 5-repetition and 30-s chair stand tests. As compared with RE only, RE plus supplementation significantly increased WBLM (0.63 kg, 95% confidence interval [CI]: 0.31-0.95), ALM (0.37 kg, 95% CI: 0.16-0.58), LLM (0.27 kg, 95% CI: 0.10-0.46), and serum concentrations of 25-hydroxyvitamin D (4.7 ng/mL, 95% CI: 1.6-7.9), vitamin B12 (72.4 pg/mL, 95% CI: 12.9-131.9), and folic acid (12.9 ng/mL, 95% CI: 10.3-15.5) (all P < 0.05 for group-by-time interactions). Changes over time in physical activity and nutritional intake excluding the supplemented nutrients were similar between groups. CONCLUSION Low-dose dairy protein plus micronutrient supplementation during RE significantly increased muscle mass in older adults but did not further improve physical performance.
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Affiliation(s)
- S Seino
- Satoshi Seino, PhD, Research Team for Social Participation and Community Health, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakae, Itabashi, Tokyo, 173-0015, Japan, Phone: +81 (3) 3964-3241 ext. 4252, E-mail:
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Ichikawa H, Narita M, Nishizaki K, Kimura Y, Seno M, Narita N, Yonekura M, Tanaka M, Shimada M, Osanai T, Okumura K, Tomita H. P4489Rivaroxaban, a direct factor Xa inhibitor, ameliorates angiotensin II-induced renal damage through inhibition of protease-activated receptor pathway-mediated inflammatory response. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p4489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Seino S, Kitamura A, Nishi M, Murayama H, Narita M, Yokoyama Y, Nofuji Y, Shinkai S. A MULTIFACTORIAL INTERVENTION FOR IMPROVING FRAILTY STATUS: EXPLORING SHORT- AND LONG-TERM EFFECTS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S. Seino
- Tokyo Metropolitan Institute of Gerontology, Itabashi, Japan,
| | - A. Kitamura
- Tokyo Metropolitan Institute of Gerontology, Itabashi, Japan,
| | - M. Nishi
- Tokyo Metropolitan Institute of Gerontology, Itabashi, Japan,
| | | | - M. Narita
- Tokyo Metropolitan Institute of Gerontology, Itabashi, Japan,
| | - Y. Yokoyama
- Tokyo Metropolitan Institute of Gerontology, Itabashi, Japan,
| | - Y. Nofuji
- Japan Association for Development of Community Medicine, Chiyoda, Japan
| | - S. Shinkai
- Tokyo Metropolitan Institute of Gerontology, Itabashi, Japan,
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Shinkai S, Yokoyama Y, Narita M, Taniguchi Y, Seino S, Amano H, Murayama H, Kitamura A. NUTRITIONAL STATUS AND ACTIVE LIFE EXPECTANCY IN A GENERAL POPULATION OF OLDER JAPANESE. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- S. Shinkai
- Tokyo Metropolitan Institute of Gerontology, Itabashi, Tokyo, Japan,
| | - Y. Yokoyama
- Tokyo Metropolitan Institute of Gerontology, Itabashi, Tokyo, Japan,
| | - M. Narita
- Tokyo Metropolitan Institute of Gerontology, Itabashi, Tokyo, Japan,
| | - Y. Taniguchi
- Tokyo Metropolitan Institute of Gerontology, Itabashi, Tokyo, Japan,
| | - S. Seino
- Tokyo Metropolitan Institute of Gerontology, Itabashi, Tokyo, Japan,
| | - H. Amano
- Tokyo Metropolitan Institute of Gerontology, Itabashi, Tokyo, Japan,
| | - H. Murayama
- The University of Tokyo, Bunkyo, Tokyo, Japan
| | - A. Kitamura
- Tokyo Metropolitan Institute of Gerontology, Itabashi, Tokyo, Japan,
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Purwadi MD, Tsuji M, Narita M, Itagaki M. A Hierarchical Domain Decomposition Boundary Element Method Applied to the Multiregion Problems of Neutron Diffusion Equations. NUCL SCI ENG 2017. [DOI: 10.13182/nse98-a1966] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Dhandhang Purwadi
- Hokkaido University, Faculty of Engineering, Department of Quantum Energy Engineering Kita 13, Nishi 8, Kita-ku, Sapporo 060-0813, Japan
| | - M. Tsuji
- Hokkaido University, Faculty of Engineering, Department of Quantum Energy Engineering Kita 13, Nishi 8, Kita-ku, Sapporo 060-0813, Japan
| | - M. Narita
- Hokkaido University, Faculty of Engineering, Department of Quantum Energy Engineering Kita 13, Nishi 8, Kita-ku, Sapporo 060-0813, Japan
| | - M. Itagaki
- Hokkaido University, Faculty of Engineering, Department of Quantum Energy Engineering Kita 13, Nishi 8, Kita-ku, Sapporo 060-0813, Japan
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Yokoyama Y, Nishi M, Murayama H, Amano H, Taniguchi Y, Nofuji Y, Narita M, Matsuo E, Seino S, Kawano Y, Shinkai S. Dietary Variety and Decline in Lean Mass and Physical Performance in Community-Dwelling Older Japanese: A 4-year Follow-Up Study. J Nutr Health Aging 2017; 21:11-16. [PMID: 27999844 DOI: 10.1007/s12603-016-0726-x] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [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: 10/21/2022]
Abstract
OBJECTIVES To examine associations of dietary variety with changes in lean mass and physical performance during a 4-year period in an elderly Japanese population. DESIGN Four-year prospective study. SETTING The Hatoyama Cohort Study and Kusatsu Longitudinal Study, Japan. PARTICIPANTS 935 community-dwelling Japanese aged 65 years or older. MEASUREMENTS Dietary variety was assessed using a 10-item food frequency questionnaire. Body composition was determined by multifrequency bioelectrical impedance analysis, and physical performance (grip strength and usual gait speed) was measured in surveys at baseline and 4 years later. Longitudinal analysis included only participants who were originally in the upper three quartiles of lean body mass, appendicular lean mass, grip strength, and usual gait speed. The outcome measures were decline in lean body mass, appendicular lean mass, grip strength, and usual gait speed, defined as a decrease to the lowest baseline quartile level at the 4-year follow-up survey. Associations of dietary variety with the outcome measures were examined by logistic regression analysis adjusted for potential confounders. RESULTS In the fully adjusted model, the odds ratios for decline in grip strength and usual gait speed were 0.43 (95% confidence interval, 0.19-0.99) and 0.43 (confidence interval, 0.19-0.99), respectively, for participants in the highest category of dietary variety score as compared with those in the lowest category. Dietary variety was not significantly associated with changes in lean body mass or appendicular lean mass. CONCLUSION Among older adults, greater dietary variety may help maintain physical performance, such as grip strength and usual gait speed, but not lean mass.
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Affiliation(s)
- Y Yokoyama
- Yuri Yokoyama, Department of Food and Nutritional Science, Graduate School of Agriculture, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo 156-8502, Japan, Tel and Fax: +81 (3) 5477-2453, E-mail:
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Abstract
It poses a serious problem if physicians leave a hospital without having a replacement or without permission. A huge earthquake followed by a devastating tsunami seriously damaged the Fukushima-Daiichi nuclear power plant. This disaster overwhelmed a major teaching hospital in the local area and many hospital employees, including some resident physicians, left the premises. Since the threat of severe radiation exposure poses a potentially greater lifetime risk to younger individuals, letting the young resident physicians leave the hospital was not only allowed, it was actually recommended by many attending physicians and hospital administrators. The hospital administrator was required to make the difficult decision of whether to make all efforts to provide the highest level of medical care, including keeping all of the physicians on the premises, or to evacuate the resident physicians in order to preserve their health and their potential future contributions to healthcare. Consideration and compassion needed to be provided to all people, regardless of the reason they wanted to leave. From an ethical perspective, the roles of performance under these complex circumstances should be understood and embraced by us as individuals, professionals, supervisors and society as a whole.
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Affiliation(s)
- M Narita
- From the Division of Infectious Diseases, Department of Medicine, Okinawa Chubu Hospital, Okinawa, Japan
| | - Y Tokuda
- Department of Medicine, Japan Community Healthcare Organization, Tokyo, Japan
| | - P Barnett
- University of Nevada School of Medicine, Office of Medical Education, N Virginia St, Reno, US
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Narita M, Yamada M, Tsuboi T, Kawashima K. Immunohistopathology of Calf Pneumonia Induced by Endobronchial Inoculation with Bovine Adenovirus 3. Vet Pathol 2016; 39:565-71. [PMID: 12243466 DOI: 10.1354/vp.39-5-565] [Citation(s) in RCA: 7] [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] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Three 1-week-old and three 3-month-old Holstein calves that had received colostrum were inoculated endobronchially with bovine adenovirus 3 (BAV-3). The gross and histologic lesions in these six infected calves were localized mainly in the right caudal lobe of the lung and were closely associated with the site of the deposition of the inoculum. The pneumonic lesions were severe necrotizing bronchitis, bronchiolitis, and alveolitis, accompanied by infiltration of inflammatory cells and proliferation of type 2 pneumocytes. Intranuclear inclusion bodies, BAV-3 antigen, and virus particles were detected in the degenerated epithelial cells in the 1-week-old but not the 3-month-old calves. After infection, the total cell count in the bronchoalveolar lavage (BAL) fluid cells was increased. The results of BAV-3 isolation from BAL fluid were correlated with the detection of intranuclear inclusion bodies in the desquamated epithelial cells in the BAL fluid cells from the right caudal lobe but not in cells from the left caudal lobe. CD8+ T lymphocytes in the pneumonic lesion were found only in the 3-month-old infected calves. The difference in the immunopathologic reactions between the 1-week-old and the 3-month-old infected calves may be attributed to differences in immune system development.
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Affiliation(s)
- M Narita
- National Institute of Animal Health, Kamikita, Aomori, Japan
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Niehues H, van Vlijmen-Willems IMJJ, Bergboer JGM, Kersten FFJ, Narita M, Hendriks WJAJ, van den Bogaard EH, Zeeuwen PLJM, Schalkwijk J. Late cornified envelope (LCE) proteins: distinct expression patterns of LCE2 and LCE3 members suggest nonredundant roles in human epidermis and other epithelia. Br J Dermatol 2016; 174:795-802. [PMID: 26556599 DOI: 10.1111/bjd.14284] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/26/2015] [Indexed: 12/27/2022]
Abstract
BACKGROUND Deletion of the late cornified envelope (LCE) proteins LCE3B and LCE3C is a strong and widely replicated psoriasis risk factor. It is amenable to biological analysis because it precludes the expression of two epidermis-specific proteins, rather than being a single-nucleotide polymorphism of uncertain significance. The biology of the 18-member LCE family of highly homologous proteins has remained largely unexplored so far. OBJECTIVES To analyse LCE3 expression at the protein level in human epithelia, as a starting point for functional analyses of these proteins in health and disease. METHODS We generated the first pan-LCE3 monoclonal antibody and provide a detailed analysis of its specificity towards individual LCE members. LCE2 and LCE3 expression in human tissues and in reconstructed human skin models was studied using immunohistochemical analyses and quantitative polymerase chain reaction. RESULTS Our study reveals that LCE2 and LCE3 proteins are differentially expressed in human epidermis, and colocalize only in the upper stratum granulosum layer. Using an in vitro reconstructed human skin model that mimics epidermal morphogenesis, we found that LCE3 proteins are expressed at an early time point during epidermal differentiation in the suprabasal layers, while LCE2 proteins are found only in the uppermost granular layer and stratum corneum. CONCLUSIONS Based on the localization of LCE2 and LCE3 in human epidermis we conclude that members of the LCE protein family are likely to have distinct functions in epidermal biology. This finding may contribute to understanding why LCE3B/C deletion increases psoriasis risk.
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Affiliation(s)
- H Niehues
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, PO Box 9101, 6500 HB, Nijmegen, the Netherlands
| | - I M J J van Vlijmen-Willems
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, PO Box 9101, 6500 HB, Nijmegen, the Netherlands
| | - J G M Bergboer
- Massachusetts General Hospital/Harvard Medical School, Boston, MA, U.S.A
| | - F F J Kersten
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, PO Box 9101, 6500 HB, Nijmegen, the Netherlands
| | - M Narita
- Cancer Research U.K. Cambridge Institute, University of Cambridge, The Li Ka Shing Centre, Cambridge, U.K
| | - W J A J Hendriks
- Department of Cell Biology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, PO Box 9101, 6500 HB, Nijmegen, the Netherlands
| | - E H van den Bogaard
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, PO Box 9101, 6500 HB, Nijmegen, the Netherlands
| | - P L J M Zeeuwen
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, PO Box 9101, 6500 HB, Nijmegen, the Netherlands
| | - J Schalkwijk
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, PO Box 9101, 6500 HB, Nijmegen, the Netherlands
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Yokoyama Y, Nishi M, Murayama H, Amano H, Taniguchi Y, Nofuji Y, Narita M, Matsuo E, Seino S, Kawano Y, Shinkai S. Association of Dietary Variety with Body Composition and Physical Function in Community-dwelling Elderly Japanese. J Nutr Health Aging 2016; 20:691-6. [PMID: 27499301 DOI: 10.1007/s12603-015-0632-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [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: 10/22/2022]
Abstract
OBJECTIVES To examine the associations of dietary variety with body composition and physical function in community-dwelling elderly Japanese. DESIGN Cross-sectional study. SETTING Community-based. PARTICIPANTS A total of 1184 community-dwelling elderly adults aged 65 and over. MEASUREMENTS Dietary variety was assessed with a food frequency questionnaire (maximum, 10 points) that encompassed the 10 main food components of Japanese meals (meat, fish/shellfish, eggs, milk, soybean products, green/yellow vegetables, potatoes, fruit, seaweed, and fats/oils). Body composition was determined by multifrequency bioelectrical impedance analysis. Physical function was assessed by measuring grip strength and usual walking speed. Multiple linear regression analysis was used to examine the associations of dietary variety with body composition and physical function. RESULTS After adjusting for potential confounders, higher dietary variety scores were independently associated with higher lean mass (β (SE): 0.176 (0.049), p<0.001) and appendicular lean mass (β (SE): 0.114 (0.027), p<0.001) but not with body fat mass. Elders with a higher dietary variety score had greater grip strength and faster usual walking speed (β (SE): 0.204 (0.071), p=0.004, and β (SE): 0.008 (0.003), p=0.012, respectively). CONCLUSION Greater dietary variety was significantly associated with greater lean mass and better physical function in Japanese elders. The causal relationship warrants investigation in a prospective study.
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Affiliation(s)
- Y Yokoyama
- Yuri Yokoyama, Department of Food and Nutritional Science, Graduate School of Agriculture, Tokyo University of Agriculture, 1-1-1, Sakuragaoka, Setagaya-ku, Tokyo 156-8502 JAPAN, Tel and Fax: +81 (3) 5477-2453, E-mail:
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O'Donnell MR, Chamblee S, von Reyn CF, Marsh BJ, Moreland JD, Narita M, Johnson LS, Horsburgh CR. Sustained reduction in tuberculosis incidence following a community-based participatory intervention. Public Health Action 2015; 2:23-6. [PMID: 26392941 DOI: 10.5588/pha.11.0023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2011] [Accepted: 02/12/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Rates of latent tuberculosis infection (LTBI) and tuberculosis (TB) disease are elevated in the rural southeastern United States and among US- and foreign-born Black residents. To prevent TB and reduce TB transmission, community-based strategies are essential. OBJECTIVE To describe a community-based participatory intervention for improving the detection and treatment of LTBI and TB and reducing TB incidence. DESIGN In rural Florida, we carried out a community educational TB campaign from 1997 to 2000, including presentations at community events, a media campaign and working with local community groups to develop culturally appropriate prevention messages. The campaign was implemented concurrently with a population-based LTBI survey. RESULTS The annual TB incidence rate in the intervention area decreased from 81 per 100 000 in 1994-1997, to 42/ 100 000 in 1998-2001, and to 25/100 000 in 2002-2005 (P = 0.001). This decrease was not observed in communities where the intervention was not implemented. There was no decrease in the TB incidence rate ratio between Blacks and non-Blacks in either region during the study period. CONCLUSIONS We conclude that community participation in LTBI screening and TB education was associated with a substantial reduction in TB rates. Although the TB incidence rate ratio did not decrease between Blacks and non-Blacks, TB incidence fell in all racial groups.
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Affiliation(s)
- M R O'Donnell
- Albert Einstein College of Medicine, Bronx, New York, USA
| | - S Chamblee
- Glades Health Initiative Inc, Belle Glade, Florida, USA
| | - C F von Reyn
- Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA
| | - B J Marsh
- Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA
| | - J D Moreland
- C L Brumback Health Center, Belle Glade, Florida, USA
| | - M Narita
- Tuberculosis Control Program, Public Health, Seattle and King County, Seattle, Washington, USA ; University of Washington School of Medicine, Seattle, Washington, USA
| | | | - C R Horsburgh
- Boston University School of Public Health, Boston, Massachusetts, USA
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Kawamoto K, Shibasaki Y, Sato S, Nemoto H, Takizawa J, Narita M, Tsuchida M, Sone H, Masuko M. Fatal tracheal aspergillosis during rituximab combined chemotherapy for diffuse large B-cell lymphoma that developed after lung transplantation. Transpl Infect Dis 2015; 17:872-5. [PMID: 26369902 DOI: 10.1111/tid.12458] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 08/11/2015] [Accepted: 08/18/2015] [Indexed: 12/20/2022]
Abstract
Invasive tracheal aspergillosis (ITA) is an infection that is unique to patients who have undergone lung transplantation (LT). Although the activity of this disease often appears on imaging, we encountered a case of ITA that became exacerbated, despite few computed tomography (CT) findings, during rituximab combined chemotherapy for diffuse large B-cell lymphoma. ITA developed during immunosuppressive therapy after LT. Because CT findings may show false-negative results, bronchoscopy is recommended for such cases.
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Affiliation(s)
- K Kawamoto
- Department of Hematology, Endocrinology and Metabolism, Faculty of Medicine, Niigata University, Niigata, Japan
| | - Y Shibasaki
- Division of Stem Cell Transplantation, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - S Sato
- Department of Thoracic and Cardiovascular Surgery, Faculty of Medicine, Niigata University, Niigata, Japan
| | - H Nemoto
- Department of Hematology, Endocrinology and Metabolism, Faculty of Medicine, Niigata University, Niigata, Japan
| | - J Takizawa
- Department of Hematology, Endocrinology and Metabolism, Faculty of Medicine, Niigata University, Niigata, Japan
| | - M Narita
- Department of Hematology, Endocrinology and Metabolism, Faculty of Medicine, Niigata University, Niigata, Japan
| | - M Tsuchida
- Department of Thoracic and Cardiovascular Surgery, Faculty of Medicine, Niigata University, Niigata, Japan
| | - H Sone
- Department of Hematology, Endocrinology and Metabolism, Faculty of Medicine, Niigata University, Niigata, Japan
| | - M Masuko
- Division of Stem Cell Transplantation, Niigata University Medical and Dental Hospital, Niigata, Japan
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Takahashi M, Uchiyama T, Narita M. 506 Antigen presenting exosomes secreted by leukemic plasmacytoid dendritic cell line. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(15)30009-5] [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: 11/25/2022]
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Fujiwara H, Ochi T, Ochi F, Miyazaki Y, Asai H, Narita M, Okamoto S, Mineno J, Kuzushima K, Shiku H, Yasukawa M. Antileukemia multifunctionality of CD4(+) T cells genetically engineered by HLA class I-restricted and WT1-specific T-cell receptor gene transfer. Leukemia 2015; 29:2393-401. [PMID: 26104661 DOI: 10.1038/leu.2015.155] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Revised: 04/23/2015] [Accepted: 05/01/2015] [Indexed: 01/15/2023]
Abstract
To develop gene-modified T-cell-based antileukemia adoptive immunotherapy, concomitant administration of CD4(+) and CD8(+) T cells that have been gene modified using identical HLA class I-restricted leukemia antigen-specific T-cell receptor (TCR) gene transfer has not yet been fully investigated. Here, using CD4(+) and CD8(+) T cells that had been gene modified with a retroviral vector expressing HLA-A*24:02-restricted and Wilms' tumor 1 (WT1)-specific TCR-α/β genes and siRNAs for endogenous TCRs (WT1-siTCR/CD4(+) T cells and WT1-siTCR/CD8(+) T cells), we examined the utility of this strategy. WT1-siTCR/CD4(+) T cells sufficiently recognized leukemia cells in an HLA class I-restricted manner and provided target-specific Th1 help for WT1-siTCR/CD8(+) T cells. By using a xenografted mouse model, we found that WT1-siTCR/CD4(+) T cells migrated to leukemia sites and subsequently attracted WT1-siTCR/CD8(+) T cells via chemotaxis. Therapy-oriented experiments revealed effective enhancement of leukemia suppression mediated by concomitant administration of WT1-siTCR/CD4(+) T cells and WT1-siTCR/CD8(+) T cells. Importantly, this augmented efficacy in the presence of WT1-siTCR/CD4(+) T cells was correlated with longer survival and enhanced formation of memory T cells by WT1-siTCR/CD8(+) T cells. Collectively, our experimental findings strongly suggest that this strategy would be clinically advantageous for the treatment of human leukemia.
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Affiliation(s)
- H Fujiwara
- Department of Hematology, Clinical Immunology and Infectious Diseases, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - T Ochi
- Department of Hematology, Clinical Immunology and Infectious Diseases, Ehime University Graduate School of Medicine, Toon, Ehime, Japan.,Princess Margaret Cancer Center, Ontario Cancer Institute, Toronto, Ontario, Canada
| | - F Ochi
- Department of Hematology, Clinical Immunology and Infectious Diseases, Ehime University Graduate School of Medicine, Toon, Ehime, Japan.,Department of Pediatrics, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Y Miyazaki
- Department of Hematology, Clinical Immunology and Infectious Diseases, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - H Asai
- Department of Hematology, Clinical Immunology and Infectious Diseases, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - M Narita
- Laboratory of Hematology and Oncology, Graduate School of Health Science, Niigata University, Niigata, Japan
| | - S Okamoto
- Center for Cell and Gene Therapy, Takara Bio Inc., Otsu, Shiga, Japan
| | - J Mineno
- Center for Cell and Gene Therapy, Takara Bio Inc., Otsu, Shiga, Japan
| | - K Kuzushima
- Division of Immunology, Aichi Cancer Center, Nagoya, Aichi, Japan
| | - H Shiku
- Department of Cancer Vaccine and Immuno-Gene Therapy, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - M Yasukawa
- Department of Hematology, Clinical Immunology and Infectious Diseases, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
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Munn MS, Duchin JS, Kay M, Pecha M, Thibault CS, Narita M. Analysis of risk factors for tuberculous infection following exposure at a homeless shelter. Int J Tuberc Lung Dis 2015; 19:570-5. [DOI: 10.5588/ijtld.14.0648] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Aoyagi K, Narita M, Mori M, Tatibana M. Regulation of acetylglutamate in the liver: effect of glucocorticoid and renal failure. Contrib Nephrol 2015; 92:182-90. [PMID: 1756641 DOI: 10.1159/000420096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- K Aoyagi
- Department of Internal Medicine, University of Tsukuba, Japan
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Tojo S, Narita M, Koyama A, Sano M, Suzuki H, Tsuchiya T, Tsuchida H, Yamamoto S, Shishido H. Dipyridamole therapy in the nephrotic syndrome. Contrib Nephrol 2015; 9:111-27. [PMID: 352614 DOI: 10.1159/000401438] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Dipyridamole was used in 30 cases of nephrotic syndrome, mostly of intractable type. The results indicate that the drug therapy proved to be effective in decreasing urinary protein and controlling nephrotic condition in 40% of the cases after an initial period of treatment. Long-term results of the drug on urinary protein and on nephrotic condition were rated as good in 36.7 and 53.3%, respectively, of the cases treated. The exact mechanism of action of dipyridamole in the nephrotic syndrome is still obscure in many respects. However, the fact that the drug shares its anti-platelet action with the non-steroid anti-inflammatory drugs, e.g. aspirin and indomethacin, and the rapidity with which it produces its urinary protein-decreasing effect, strongly suggests that it inhibits the release of vasoactive amines and other chemical mediators from blood platelets. As far as the present study is concerned, adverse side effects of dipyridamole were few or minimal, even when the drug used in large doses over a prolonged period of time. From these results it is considered that dipyridamole provides a new remedy which is worthy of trying in nephrotic syndrome as a means of reducing the requirement of steroids and immunosuppressive drugs.
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Wakashin Y, Wakashin M, Narita M, Tojo S. Immunochemical characterization and quantitation of the human glomerular basement membrane antigen from the urine of patients with glomerular diseases. Contrib Nephrol 2015; 6:124-35. [PMID: 404115 DOI: 10.1159/000399758] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A soluble glomerular basement membrane (GBM) antigen was detected in the urines of patients with various glomerular diseases including chronic glomerulonephritis, nephrotic syndrome, chronic renal insufficiency, and lupus nephropathy. The urinary GBM antigen (u-GBM) was immunochemically distinct from other renal antigens and other serum components, but it was cross-reactive with trypsinized human GBM antigen (t-GBM). The molecular size of u-GBM was approximately the same as human serum albumin as estimated by elution patterns on Sephadex G-200. The concentration of u-GBM was estimated quantitatively by a single radial radioimmunodiffusion. Although differed from case to case, a rough correlation with the type and/or stage of nephrotic syndrom existed. It was also demonstrated that the amounts of u-GBM decreased in response to steroid therapy of nephrotic syndrome. It was further shown that in a case of membranoproliferative glomerulonephritis, anti-GBM antibody could be eluted from the kidney removed from the patient. These findings imply that the GBM antigen plays an important role in the pathogenesis of human renal diseases. The pathophysiological significance of urinary GBM excretion in renal diseases is also discussed here.
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Abstract
To study the participation of the antibody avidity in the pathogenesis of lupus nephritis, we measured the antibody avidity to native DNA by the method of Minden and Farr (14) in patients with SLE. The avidity to native DNA was almost less than 40%. The avidity and the histological activity of lupus nephritis were well correlated; the antibody avidity of the active-group sera was higher than that of the inactive-group sera and the group without nephritis. In the group with antibodies of relatively high avidity, the complexes were deposited mainly in the subendothelial side of GBM and in the mesangium. On the other hand, in the group with low-avidity antibodies, the complexes were localized in the subepithelial side of GBM. On investigating the quality of the complexes, we noted that the complexes composed of high-avidity antibodies prepared in vitro were larger than those of low avidity and the former were larger than 19S. If the native-DNA-anti-native DNA system is the mechanism basic to lupus nephritis, the differences in immune response of the host, namely the degree of antibody avidity may greatly affect complex formation and influence the histological activity and nephritogenicity of lupus nephritis.
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Goto S, Koike E, Tanaka M, Komai S, Narita M, Sekimoto M, Tashiro Y, Naito R, Kitano M. Reduced incidence of hepatitis in blood-recipients by means of donor-screening by electro-dermatography. Bibl Haematol 2015; 23:1058-61. [PMID: 5879439 DOI: 10.1159/000384357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Horimukai K, Hayashi K, Tsumura Y, Nomura I, Narita M, Ohya Y, Saito H, Matsumoto K. Total serum IgE level influences oral food challenge tests for IgE-mediated food allergies. Allergy 2015; 70:334-7. [PMID: 25495854 DOI: 10.1111/all.12562] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/10/2014] [Indexed: 11/30/2022]
Abstract
Probability curves predicting oral food challenge test (OFC) results based on specific IgE levels are widely used to prevent serious allergic reactions. Although several confounding factors are known to affect probability curves, the main factors that affect OFC outcomes are currently unclear. We hypothesized that an increased total IgE level would reduce allergic reactivity. Medical records of 337 and 266 patients who underwent OFCs for 3.5 g boiled hen's egg white and 3.1 ml raw cow's milk, respectively, were examined retrospectively. We subdivided the patients into three groups based on total IgE levels and age by percentile (<25th, 25-75th, and >75th percentiles), and logistic regression analyses were performed on each group. Patients with higher total IgE levels were significantly less responsive. In addition, age did not significantly affect the OFC results. Therefore, total IgE levels should be taken into account when predicting OFC results based on food-specific IgE levels.
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Affiliation(s)
- K. Horimukai
- Division of Allergy; Department of Medical Specialties; National Center for Child Health and Development; Tokyo Japan
- Department of Pediatrics; Jikei University Katsushika Medical Center; Tokyo Japan
| | - K. Hayashi
- Mandarin City Medical Center; Parkway Health; Shanghai China
| | - Y. Tsumura
- Division of Allergy; Department of Medical Specialties; National Center for Child Health and Development; Tokyo Japan
| | - I. Nomura
- Division of Allergy; Department of Medical Specialties; National Center for Child Health and Development; Tokyo Japan
| | - M. Narita
- Division of Allergy; Department of Medical Specialties; National Center for Child Health and Development; Tokyo Japan
| | - Y. Ohya
- Division of Allergy; Department of Medical Specialties; National Center for Child Health and Development; Tokyo Japan
| | - H. Saito
- Department of Allergy and Immunology; National Research Institute for Child Health and Development; Tokyo Japan
| | - K. Matsumoto
- Department of Allergy and Immunology; National Research Institute for Child Health and Development; Tokyo Japan
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Reves R, Heilig CM, Tapy JM, Bozeman L, Kyle RP, Hamilton CD, Bock N, Narita M, Wing D, Hershfield E, Goldberg SV. Intermittent tuberculosis treatment for patients with isoniazid intolerance or drug resistance. Int J Tuberc Lung Dis 2015; 18:571-80. [PMID: 24903795 DOI: 10.5588/ijtld.13.0304] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING Twenty tuberculosis (TB) clinics in the United States and Canada. OBJECTIVE To evaluate the efficacy and safety of a 6-month intermittent regimen of rifampin (RMP), pyrazinamide (PZA) and ethambutol (EMB) in human immunodeficiency virus (HIV) negative patients with culture-confirmed pulmonary or extra-pulmonary tuberculosis and either isoniazid (INH) resistance or INH intolerance. DESIGN Patients were enrolled in a single-arm clinical trial to receive intermittent dosing after at least 14 initial daily doses of RMP+PZA+EMB. Treatment was continued twice (BIW) or thrice weekly (TIW) per physician/patient preference for a total of 6 months, with 2 years of follow-up for relapse after treatment. RESULTS From 1999 to 2004, 98 patients were enrolled, 78 with reported INH resistance and 20 with INH intolerance. BIW dosing was used in 77 and TIW in 21. Study treatment was completed in 73 (74%). Reasons for discontinuation were hepatic adverse events (n= 12), other adverse effects (n= 3) and other reasons (n= 10). Failure (n= 1) and relapse (n= 2) occurred in 3 (3.5%, 95%CI 1.2-9.8) of 86 patients eligible for efficacy analysis, all occurring in patients with cavitary, acid-fast bacilli smear-positive pulmonary TB. CONCLUSIONS Intermittent RMP+PZA+EMB appears to be effective in HIV-negative patients, but the regimen is poorly tolerated, possibly due to the prolonged use of PZA. Alternative regimens of lower toxicity are needed.
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Affiliation(s)
- R Reves
- Denver Public Health Department, Denver, Colorado, USA
| | - C M Heilig
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - J M Tapy
- Denver Public Health Department, Denver, Colorado, USA
| | - L Bozeman
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - R P Kyle
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - C D Hamilton
- Family Health International 360, Durham, North Carolina, USA
| | - N Bock
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - M Narita
- University of Washington, Seattle, Washington, USA
| | - D Wing
- South Texas-Audie Murphy VA Hospital Research Collaboration, Harlingen, Texas, USA
| | - E Hershfield
- University of Manitoba, Winnipeg, Manitoba, Canada
| | - S V Goldberg
- Centers for Disease Control and Prevention, Atlanta, Georgia, USA
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Narita M. Radiology of HIV/AIDS: A Practical Approach. Clin Infect Dis 2014. [DOI: 10.1093/cid/ciu728] [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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Kogou T, Hirota M, Yamamoto M, Narita M, Takaki T, Takano N, Shibahara T. Comparision between 3D and 2D cephalometric analysis of orthognathis surgery. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.230] [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: 11/26/2022]
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Yamada M, Miyazaki A, Yamamoto Y, Nakamura K, Ito M, Tsunemitsu H, Narita M. Experimental teschovirus encephalomyelitis in gnotobiotic pigs. J Comp Pathol 2013; 150:276-86. [PMID: 24650890 PMCID: PMC7173091 DOI: 10.1016/j.jcpa.2013.08.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [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: 06/13/2013] [Revised: 08/02/2013] [Accepted: 08/29/2013] [Indexed: 10/26/2022]
Abstract
A central nervous system (CNS) disorder characterized by non-suppurative encephalomyelitis with neurological signs was induced experimentally in gnotobiotic pigs by intravenous and oral or intranasal inoculation of the porcine teschovirus (PTV) Toyama 2002 strain isolated from breeding pigs in Japan. Lesions consisting of perivascular cuffing of mononuclear cells, focal gliosis, neuronal necrosis and neuronophagia were observed in the brainstem, cerebellum and spinal cord. Non-suppurative ganglionitis in the spinal ganglion and neuritis in the spinal root were also observed. Regardless of the route of inoculation, all pigs infected experimentally with PTV showed a similar distribution of CNS lesions. Histological lesions in the CNS caused by oral or intranasal inoculation of the virus were mild compared with those induced by intravenous infection. Immunohistochemically, the distribution of PTV antigens corresponded closely with the distribution of brain lesions. PTV particles were detected via electron microscopy in the cytoplasm of nerve cells and the endothelial cells of blood vessels in the spinal cord of inoculated pigs. Polymerase chain reaction analysis demonstrated the presence of PTV RNA in the CNS, tonsils and large intestines of 21 of the 22 pigs inoculated. Direct CNS invasion via the blood vessels appears to be a major route of infection for PTV. The gnotobiotic pig provides a useful model for further study of PTV pathogenesis.
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Affiliation(s)
- M Yamada
- National Institute of Animal Health, Tsukuba, Ibaraki 305-0856, Japan.
| | - A Miyazaki
- National Institute of Animal Health, Tsukuba, Ibaraki 305-0856, Japan
| | - Y Yamamoto
- National Institute of Animal Health, Tsukuba, Ibaraki 305-0856, Japan
| | - K Nakamura
- National Institute of Animal Health, Tsukuba, Ibaraki 305-0856, Japan
| | - M Ito
- Tokachi Livestock Hygiene Service Center, Obihiro, Hokkaido 089-1182, Japan
| | - H Tsunemitsu
- National Institute of Animal Health, Tsukuba, Ibaraki 305-0856, Japan
| | - M Narita
- National Institute of Animal Health, Tsukuba, Ibaraki 305-0856, Japan
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Yamaguchi T, Narita M, Morita T, Kizawa Y, Matoba M. Recent Developments in the Management of Cancer Pain in Japan: Education, Clinical Guidelines and Basic Research. Jpn J Clin Oncol 2012; 42:1120-7. [DOI: 10.1093/jjco/hys155] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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50
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Dorman SE, Goldberg S, Stout JE, Muzanyi G, Johnson JL, Weiner M, Bozeman L, Heilig CM, Feng PJ, Moro R, Narita M, Nahid P, Ray S, Bates E, Haile B, Nuermberger EL, Vernon A, Schluger NW. Substitution of Rifapentine for Rifampin During Intensive Phase Treatment of Pulmonary Tuberculosis: Study 29 of the Tuberculosis Trials Consortium. J Infect Dis 2012; 206:1030-40. [DOI: 10.1093/infdis/jis461] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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