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Mimura T, Matsumoto G, Natori T, Ikegami S, Uehara M, Oba H, Hatakenaka T, Kamanaka T, Miyaoka Y, Kurogochi D, Fukuzawa T, Koseki M, Kanai S, Takahashi J. Impact of the COVID-19 pandemic on the incidence of surgical site infection after orthopaedic surgery: an interrupted time series analysis of the nationwide surveillance database in Japan. J Hosp Infect 2024; 146:160-165. [PMID: 37301228 PMCID: PMC10250054 DOI: 10.1016/j.jhin.2023.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 05/23/2023] [Accepted: 06/03/2023] [Indexed: 06/12/2023]
Abstract
BACKGROUND During the COVID-19 pandemic, hygiene awareness was increased in communities and hospitals. However, there is controversy regarding whether such circumstances affected the incidence of surgical site infections (SSIs) in the orthopaedic surgical field. AIM To examine the impact of the COVID-19 pandemic on the incidence of SSIs after orthopaedic surgery. METHODS The medical records of patients having undergone orthopaedic surgery were extracted from the nationwide surveillance database in Japan. The primary outcomes were the monthly incidences of total SSIs, deep or organ/space SSIs, and SSIs due to meticillin-resistant Staphylococcus aureus (MRSA). Interrupted time series analysis was conducted between pre-pandemic (January 2017 to March 2020) and pandemic (April 2020 to June 2021) periods. RESULTS A total of 309,341 operations were included. Interrupted time series analysis adjusted for seasonality showed no significant changes in the incidence of total SSIs (rate ratio 0.94 and 95% confidence interval 0.98-1.02), deep or organ/space SSIs (0.91, 0.72-1.15), or SSIs due to MRSA (1.07, 0.68-1.68) along with no remarkable slope changes in any parameter (1.00, 0.98-1.02; 1.00, 0.97-1.02; and 0.98, 0.93-1.03, respectively). CONCLUSIONS Awareness and measures against the COVID-19 pandemic did not markedly influence the incidence of total SSIs, deep or organ/space SSIs, or SSIs due to MRSA following orthopaedic surgery in Japan.
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Affiliation(s)
- T Mimura
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto, Japan.
| | - G Matsumoto
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - T Natori
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan; Division of Infection Control, Shinshu University Hospital, Matsumoto, Japan
| | - S Ikegami
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - M Uehara
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - H Oba
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - T Hatakenaka
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - T Kamanaka
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Y Miyaoka
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - D Kurogochi
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - T Fukuzawa
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - M Koseki
- Faculty of Textile Science and Technology, Shinshu University, Nagano, Japan
| | - S Kanai
- Division of Infection Control, Shinshu University Hospital, Matsumoto, Japan
| | - J Takahashi
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto, Japan
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Farooq M, Patel S, Rahmanian M, Uehara M, Aldabagh M, Madan S, Forest S, Silvestry S, Jorde U, Goldstein D, Saeed O. Outcomes by Severity of Obesity During Extracorporeal Membrane Oxygenation Support for COVID-19. J Heart Lung Transplant 2022. [PMCID: PMC8988478 DOI: 10.1016/j.healun.2022.01.1597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Purpose Obesity adversely impacts outcomes during COVID-19 but its relation to mortality in those receiving extracorporeal membrane oxygenation (ECMO) is uncertain. Methods A retrospective multicenter study was conducted. Adult patients (≥18 years old) with severe COVID-19 infection placed on ECMO between March 1, 2020 to April 30, 2021, across the United States were included. A web-based database application, REDCap, was utilized to capture clinical characteristics and outcomes. Patients were grouped into tertiles of body mass index (BMI). The primary outcome was in-hospital mortality after ECMO placement assessed by a time-to-event analysis. Results Overall 444 patients (age 49, IQR: 38-57 years, 29% female, BMI: 33, IQR: 29-39 kg/m2) from 17 centers comprised the study cohort. Patients that expired during hospitalization had a similar BMI in comparison to those that were discharged (33, IQR: 29-38 vs. 34, IQR: 30-40 kg/m2, p=0.13). BMI across groups was 27, IQR: 25-29 (lowest tertile), 33, IQR: 32-34 (middle tertile), 41, IQR: 38-45 kg/m2 (highest tertile). At 90 days, in-hospital mortality between BMI tertiles was 53%, 59%, and 53%, p=0.99 (figure). After adjustment for clinical covariates including age, sex, presence of preexisting co-morbidities, cardiopulmonary arrest prior to ECMO, serum creatinine and arterial partial pressure of oxygen (PaO2) to inspired oxygen concentration (FiO2) ratio, there was no difference in hospital mortality in the middle (aHR:1.13, CI: 0.79-1.63, p=0.5) and highest (aHR: 1.38, CI: 0.95-2.01, p=0.09) tertiles in comparison to the lowest BMI tertile. Conclusion Severity of obesity is not associated with death during hospitalization in patients placed on ECMO for COVID-19
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Purevsuren M, Uehara M, Ishizuka M, Hara T, Kakuda N, Tsuji T, Yamazaki T, Hatano M, Komuro I. Cardiac magnetic resonance parametric mapping can detect early cardiac involvement of patients with systemic sclerosis. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0223] [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: 11/14/2022] Open
Abstract
Abstract
Background
Systemic sclerosis (SSc) is divided into two subtypes, diffuse and limited cutaneous SSc (dcSSc and lcSSc). The dcSSc subtype has more severe internal organ fibrosis than lcSSc. It is unclear whether cardiovascular magnetic resonance (CMR) parametric mapping can detect early cardiac involvement in these two subtypes.
Purpose
To detect cardiac involvement and evaluate differences between the two subtypes, we examined CMR parametric mapping.
Methods
57 consecutive SSc patients (27 dcSSc and 30 lcSSc) who visited our hospital from July 2018 to February 2021 and underwent CMR at 3.0T (Philips) were included. We analyzed myocardial damage using CMR parametric mapping and compared it with clinical data.
Results
Mean disease durations of dcSSc and lcSSc were 4.0±6.5 years and 4.4±8.3 years, respectively. Although there were no significant differences in LVEF (56.8±8.8 vs 59.6±7.2), the left and right atrial volume index were significantly larger in dcSSc compared with lcSSc (all p<0.05). Focal fibrosis as evaluated by late gadolinium enhancement was found in 9 SSc patients (15.7%) and 4 patients had pulmonary hypertension. DcSSc patients had significantly higher mid-ventricular native T1 (1350.8±73.2 vs 1312.9±52.1, p=0.029) and postcontrast T1 values (640.4±59.4 vs 604.6±42.5, p=0.015) as compared to lcSSc, although there were no significant differences in ECV and T2 values. Native T1 values in mid-ventricular septum were positively correlated with E/e' ratio of echocardiography in overall SSc patients and dcSSc patients but not in lcSSc patients (r=0.320, p=0.021; r=0.505, p=0.010; r=0.195, p=0.329). Native T1 values in mid-ventricular septum were also positively correlated with plasma levels of brain natriuretic peptide (BNP) in overall SSc patients and dcSSc patients but not in lcSSc patients (r=0.353, p=0.008; r=0.484, p=0.011; r=0.113, p=0.559).The multiple regression analysis considering age and sex revealed that mid-ventricular septum native T1 was the independent predictor of E/e' in SSc patients (β=0.306, p=0.026), and dcSSc patients (β=0.553, p=0.007) but not in lcSSc patients (β=−0.282, p=0.105). The ROC curve for predicting E/e'≥14, cut-off value of native T1 in mid-ventricular septum was ≥1348.5msec (AUC 0.762; 95% CI 0.571–0.953; sensitivity 80.0%; specificity 68.1%). BNP was significantly higher in patients with native T1≥1348.5 msec compared with native T1<1348.5 (102.8±112.8 vs 45.7±55.7; p=0.014). The interobserver variability of CMR parametric mapping values was excellent in this study.
Conclusion
DcSSc patients showed higher native T1 and larger left and right atrial volume index of CMR than lcSSc patients, suggesting that DcSSc patients had more severe myocardial involvement and left ventricular diastolic dysfunction than lcSSc patients. Early detection of the high native T1 may predict the occurrence of cardiovascular events in the future.
Funding Acknowledgement
Type of funding sources: None. Correlation between native T1 and BNPCorrelation between native T1 and E/e'
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Affiliation(s)
- M Purevsuren
- The University of Tokyo, Department of Cardiovascular Medicine, Tokyo, Japan
| | - M Uehara
- The University of Tokyo, Department of Cardiovascular Medicine, Tokyo, Japan
| | - M Ishizuka
- The University of Tokyo, Department of Cardiovascular Medicine, Tokyo, Japan
| | - T Hara
- The University of Tokyo, Department of Cardiovascular Medicine, Tokyo, Japan
| | - N Kakuda
- The University of Tokyo, Department of Cardiovascular Medicine, Tokyo, Japan
| | - T Tsuji
- The University of Tokyo, Department of Cardiovascular Medicine, Tokyo, Japan
| | - T Yamazaki
- The University of Tokyo, Department of Cardiovascular Medicine, Tokyo, Japan
| | - M Hatano
- The University of Tokyo, Department of Cardiovascular Medicine, Tokyo, Japan
| | - I Komuro
- The University of Tokyo, Department of Cardiovascular Medicine, Tokyo, Japan
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Milwidsky A, Haroun M, Saeed O, Goldstein D, Forest S, Uehara M, Chinnadurai T, Madan S, Jorde U. Post Left Ventricular Assist Device Implantation Platelets Count Alterations are Related to Gender, Race and Early Mortality. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1125] [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: 10/21/2022] Open
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5
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Fauvel D, Taveras M, Skendelas J, Bartash R, Nnani D, Oviedo J, Forest S, Uehara M, Patel S, Goldstein D, Jorde U. The Pressure is on: Single Center's Experience with Negative Pressure Wound Therapy and Driveline Infection. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1171] [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: 11/15/2022] Open
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6
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Hirata K, Shobu K, Yamada H, Uehara M, Anggraini S, Akiyama M. Thermodynamic assessment of the Al–Sc–N ternary system and phase-separated region of the strained wurtzite phase. Ann Ital Chir 2020. [DOI: 10.1016/j.jeurceramsoc.2020.06.047] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Uehara M, Takahashi J, Ikegami S, Kuraishi S, Fukui D, Imamura H, Okada K, Kato H. Thoracic aortic aneurysm is an independent factor associated with diffuse idiopathic skeletal hyperostosis. Bone Joint J 2018; 100-B:617-621. [PMID: 29701101 DOI: 10.1302/0301-620x.100b5.bjj-2017-1298.r1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 01/13/2023]
Abstract
Aims Although we often encounter patients with an aortic aneurysm who also have diffuse idiopathic skeletal hyperostosis (DISH), there are no reports to date of an association between these two conditions and the pathogenesis of DISH remains unknown. This study therefore evaluated the prevalence of DISH in patients with a thoracic aortic aneurysm (AA). Patients and Methods The medical records of 298 patients who underwent CT scans for a diagnosis of an AA or following high-energy trauma were retrospectively examined. A total of 204 patients underwent surgery for an AA and 94 had a high-energy injury and formed the non-AA group. The prevalence of DISH was assessed on CT scans of the chest and abdomen and the relationship between DISH and AA by comparison between the AA and non-AA groups. Results The prevalence of DISH in the AA group (114/204; 55.9%) was higher than that in the non-AA group (31/94; 33.0%). On multivariate analysis, the factors of AA, male gender, and ageing were independent predictors of the existence of DISH, with odds ratios of 2.9, 1.9, and 1.03, respectively. Conclusion This study revealed that the prevalence of DISH is higher in patients with an AA than in those without an AA, and that the presence of an AA significantly influenced the prevalence of DISH. Cite this article: Bone Joint J 2018;100-B:617-21.
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Affiliation(s)
- M Uehara
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Nagano, Japan
| | - J Takahashi
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Nagano, Japan
| | - S Ikegami
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Nagano, Japan
| | - S Kuraishi
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Nagano, Japan
| | - D Fukui
- Department of Cardiovascular Surgery, Shinshu University School of Medicine, Nagano, Japan
| | - H Imamura
- Department of Emergency and Critical Care Medicine, Shinshu University School of Medicine, Nagano, Japan
| | - K Okada
- Department of Cardiovascular Surgery, Shinshu University School of Medicine, Nagano, Japan
| | - H Kato
- Department of Orthopaedic Surgery, Shinshu University School of Medicine, Nagano, Japan
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8
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Uehara M, Gattacceca J, Quesnel Y, Lepaulard C, Lima EA, Manfredi M, Rochette P. A spinner magnetometer for large Apollo lunar samples. Rev Sci Instrum 2017; 88:104502. [PMID: 29092488 DOI: 10.1063/1.5008905] [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] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We developed a spinner magnetometer to measure the natural remanent magnetization of large Apollo lunar rocks in the storage vault of the Lunar Sample Laboratory Facility (LSLF) of NASA. The magnetometer mainly consists of a commercially available three-axial fluxgate sensor and a hand-rotating sample table with an optical encoder recording the rotation angles. The distance between the sample and the sensor is adjustable according to the sample size and magnetization intensity. The sensor and the sample are placed in a two-layer mu-metal shield to measure the sample natural remanent magnetization. The magnetic signals are acquired together with the rotation angle to obtain stacking of the measured signals over multiple revolutions. The developed magnetometer has a sensitivity of 5 × 10-7 Am2 at the standard sensor-to-sample distance of 15 cm. This sensitivity is sufficient to measure the natural remanent magnetization of almost all the lunar basalt and breccia samples with mass above 10 g in the LSLF vault.
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Affiliation(s)
- M Uehara
- CNRS, Aix Marseille Univ, IRD, Coll France, CEREGE, Aix-en-Provence, France
| | - J Gattacceca
- CNRS, Aix Marseille Univ, IRD, Coll France, CEREGE, Aix-en-Provence, France
| | - Y Quesnel
- CNRS, Aix Marseille Univ, IRD, Coll France, CEREGE, Aix-en-Provence, France
| | - C Lepaulard
- CNRS, Aix Marseille Univ, IRD, Coll France, CEREGE, Aix-en-Provence, France
| | - E A Lima
- Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | | | - P Rochette
- CNRS, Aix Marseille Univ, IRD, Coll France, CEREGE, Aix-en-Provence, France
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9
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Takaoka H, Funabashi N, Uehara M, Ozawa K, Sano K, Kobayashi Y. P536Improved diagnosis of detection of late enhancement in left ventricular myocardium using 2nd generation 320-slice ct reconstructed with first in patients suspected of having myocardial diseases. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p536] [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: 11/12/2022] Open
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10
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Minami R, Imai T, Kariya T, Numakura T, Kato T, Uehara M, Goto R, Tsumura K, Endo Y, Ichimura M. Experimental Results and Design of Mirror Antenna and MW Gyrotron for Control of High Intermittent Heat Flux in GAMMA 10 Tandem Mirror. Fusion Science and Technology 2017. [DOI: 10.13182/fst14-869] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- R. Minami
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - T. Imai
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - T. Kariya
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - T. Numakura
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - T. Kato
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - M. Uehara
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - R. Goto
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - K. Tsumura
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - Y. Endo
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - M. Ichimura
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
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11
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Jin L, Tanaka T, Kondoh E, Gelloz B, Sano K, Fujio I, Kajiyama Y, Uehara M. Rotatable Offner imaging system for ellipsometric measurement. Rev Sci Instrum 2017; 88:013704. [PMID: 28147651 DOI: 10.1063/1.4973778] [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] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
To realize high spatial resolution imaging ellipsometric measurement with large field of view, we developed a rotatable Offner system with unit magnification. When the conventional Offner imaging system is tilted relative to the sample plane for the ellipsometric measurement, only a small region of plane is in focus. The rotatable Offner system developed here renders the entire object in focus through all rotations. The performance of the prototype of the Offner system and imaging ellipsometer is tested by generating maps of the ellipsometric parameters Δ and Ψ for samples such as a silicon wafer and a resolution target made of chromium film evaporated on a glass substrate.
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Affiliation(s)
- L Jin
- Faculty of Engineering, University of Yamanashi, Kofu, 400-8511 Yamanashi, Japan
| | - T Tanaka
- Faculty of Engineering, University of Yamanashi, Kofu, 400-8511 Yamanashi, Japan
| | - E Kondoh
- Faculty of Engineering, University of Yamanashi, Kofu, 400-8511 Yamanashi, Japan
| | - B Gelloz
- Faculty of Engineering, Nagoya University, Nagoya, Aichi 464-8601, Japan
| | - K Sano
- Mejiro Genossen, Inc., Tokyo 161-0033, Japan
| | - I Fujio
- Mejiro Genossen, Inc., Tokyo 161-0033, Japan
| | - Y Kajiyama
- Mejiro Genossen, Inc., Tokyo 161-0033, Japan
| | - M Uehara
- Mejiro Genossen, Inc., Tokyo 161-0033, Japan
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12
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Minami R, Imai T, Kariya T, Numakura T, Uehara M, Tsumura K, Ebashi Y, Kajino S, Endo Y, Nakashima Y. Measurement of effect of electron cyclotron heating in a tandem mirror plasma using a semiconductor detector array and an electrostatic energy analyzer. Rev Sci Instrum 2016; 87:11E306. [PMID: 27910325 DOI: 10.1063/1.4959574] [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] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Temporally and spatially resolved soft x-ray and end-loss-electron analyses of the electron cyclotron heated plasmas are carried out by using a semiconductor detector array and an electrostatic energy analyzer in the GAMMA 10 tandem mirror. The flux and the energy spectrum of the end loss electrons are measured by a multi-grid energy analyzer. Recently, the electron cyclotron heating power modulation experiments have been started in order to generate and control the high heat flux and to make the edge localized mode-like intermittent heat load pattern for the divertor simulation studies by the use of these detectors for electron properties.
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Affiliation(s)
- R Minami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Kariya
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Numakura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M Uehara
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - K Tsumura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y Ebashi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - S Kajino
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y Endo
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y Nakashima
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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13
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Kito S, Koga H, Kodama M, Habu M, Kokuryo S, Oda M, Matsuo K, Nishino T, Matsumoto-Takeda S, Uehara M, Yoshiga D, Tanaka T, Nishimura S, Miyamoto I, Sasaguri M, Tominaga K, Yoshioka I, Morimoto Y. Alterations in 18F-FDG accumulation into neck-related muscles after neck dissection for patients with oral cancers. Med Oral Patol Oral Cir Bucal 2016; 21:e341-8. [PMID: 27031062 PMCID: PMC4867208 DOI: 10.4317/medoral.21018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 01/24/2016] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND 18F-fluoro-2-deoxy-D-glucose (18F-FDG) accumulations are commonly seen in the neck-related muscles of the surgical and non-surgical sides after surgery with neck dissection (ND) for oral cancers, which leads to radiologists having difficulty in diagnosing the lesions. To examine the alterations in 18F-FDG accumulation in neck-related muscles of patients after ND for oral cancer. MATERIAL AND METHODS 18F-FDG accumulations on positron emission tomography (PET)-computed tomography (CT) in neck-related muscles were retrospectively analyzed after surgical dissection of cervical lymph nodes in oral cancers. RESULTS According to the extent of ND of cervical lymph nodes, the rate of patients with 18F-FDG-PET-positive areas increased in the trapezius, sternocleidomastoid, and posterior neck muscles of the surgical and/or non-surgical sides. In addition, SUVmax of 18F-FDG-PET-positive areas in the trapezius and sternocleidomastoid muscles were increased according to the extent of the ND. CONCLUSIONS In evaluating 18F-FDG accumulations after ND for oral cancers, we should pay attention to the 18F-FDG distributions in neck-related muscles including the non-surgical side as false-positive findings.
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Affiliation(s)
- S Kito
- Division of Oral and Maxillofacial Radiology, Kyushu Dental University, 2-6-1 Manazuru, Kokurakita-ku, Kitakyushu 803-8580, Japan,
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14
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Azzi J, Ohori S, Ting C, Uehara M, Abdoli R, Smith BD, Safa K, Solhjou Z, Lukyanchykov P, Patel J, McGrath M, Abdi R. Serine protease inhibitor-6 differentially affects the survival of effector and memory alloreactive CD8-T cells. Am J Transplant 2015; 15:234-41. [PMID: 25534448 PMCID: PMC4976694 DOI: 10.1111/ajt.13051] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 08/07/2014] [Accepted: 08/25/2014] [Indexed: 01/25/2023]
Abstract
The clonal expansion of effector T cells and subsequent generation of memory T cells are critical in determining the outcome of transplantation. While cytotoxic T lymphocytes induce direct cytolysis of target cells through secretion of Granzyme-B (GrB), they also express cytoplasmic serine protease inhibitor-6 (Spi6) to protect themselves from GrB that has leaked from granules. Here, we studied the role of GrB/Spi6 axis in determining clonal expansion of alloreactive CD8-T cells and subsequent generation of memory CD8-T cells in transplantation. CD8-T cells from Spi6(-/-) mice underwent more GrB mediated apoptosis upon alloantigen stimulation in vitro and in vivo following adoptive transfer into an allogeneic host. Interestingly, while OT1.Spi6(-/-) CD8 T cells showed significantly lower clonal expansion following skin transplants from OVA mice, there was no difference in the size of the effector memory CD8-T cells long after transplantation. Furthermore, lack of Spi6 resulted in a decrease of short-lived-effector-CD8-cells but did not impact the pool of memory-precursor-effector-CD8-cells. Similar results were found in heart transplant models. Our findings suggest that the final alloreactive CD8-memory-pool-size is independent from the initial clonal-proliferation as memory precursors express low levels of GrB and therefore are independent of Spi6 for survival. These data advance our understanding of memory T cells generation in transplantation and provide basis for Spi6 based strategies to target effector T cells.
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Affiliation(s)
- J. Azzi
- Corresponding authors: Jamil Azzi, and Reza Abdi,
| | | | | | | | | | | | | | | | | | | | | | - R. Abdi
- Corresponding authors: Jamil Azzi, and Reza Abdi,
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Minami R, Imai T, Kariya T, Numakura T, Eguchi T, Kawarasaki R, Nakazawa K, Kato T, Sato F, Nanzai H, Uehara M, Endo Y, Ichimura M. Soft x-ray intensity profile measurements of electron cyclotron heated plasmas using semiconductor detector arrays in GAMMA 10 tandem mirror. Rev Sci Instrum 2014; 85:11D807. [PMID: 25430220 DOI: 10.1063/1.4885495] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Temporally and spatially resolved soft x-ray analyses of electron cyclotron heated plasmas are carried out by using semiconductor detector arrays in the GAMMA 10 tandem mirror. The detector array has 16-channel for the measurements of plasma x-ray profiles so as to make x-ray tomographic reconstructions. The characteristics of the detector array make it possible to obtain spatially resolved plasma electron temperatures down to a few tens eV and investigate various magnetohydrodynamic activities. High power electron cyclotron heating experiment for the central-cell region in GAMMA 10 has been started in order to reduce the electron drag by increasing the electron temperature.
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Affiliation(s)
- R Minami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Kariya
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Numakura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Eguchi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - R Kawarasaki
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - K Nakazawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Kato
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - F Sato
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - H Nanzai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M Uehara
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y Endo
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M Ichimura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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Tsutsumimoto T, Yui M, Uehara M, Ohta H, Kosaku H, Misawa H. A prospective study of the incidence and outcomes of incidental dural tears in microendoscopic lumbar decompressive surgery. Bone Joint J 2014; 96-B:641-5. [DOI: 10.1302/0301-620x.96b5.32957] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Little information is available about the incidence and outcome of incidental dural tears associated with microendoscopic lumbar decompressive surgery. We prospectively examined the incidence of dural tears and their influence on the outcome six months post-operatively in 555 consecutive patients (mean age 47.4 years (13 to 89)) who underwent this form of surgery. The incidence of dural tears was 5.05% (28/555). The risk factors were the age of the patient and the procedure of bilateral decompression via a unilateral approach. The rate of recovery of the Japanese Orthopaedic Association score in patients with dural tears was significantly lower than that in those without a tear (77.7% vs 87.6%; p < 0.02), although there were no significant differences in the improvement of the Oswestry Disability Index between the two groups. Most dural tears were small, managed by taking adequate care of symptoms of low cerebrospinal fluid pressure, and did not require direct dural repair. Routine MRI scans were undertaken six months post-operatively; four patients with a dural tear had recurrent or residual disc herniation and two had further stenosis, possibly because the dural tear prevented adequate decompression and removal of the fragments of disc during surgery; as yet, none of these patients have undergone further surgery. Cite this article: Bone Joint J 2014;96-B:641–5.
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Affiliation(s)
- T. Tsutsumimoto
- Yodakubo Hospital, Spine
Centre, 2857 Furumachi, Nagawa, Nagano
386-0603, Japan
| | - M. Yui
- Yodakubo Hospital, Spine
Centre, 2857 Furumachi, Nagawa, Nagano
386-0603, Japan
| | - M. Uehara
- Yodakubo Hospital, Spine
Centre, 2857 Furumachi, Nagawa, Nagano
386-0603, Japan
| | - H. Ohta
- Yodakubo Hospital, Spine
Centre, 2857 Furumachi, Nagawa, Nagano
386-0603, Japan
| | - H. Kosaku
- Yodakubo Hospital, Spine
Centre, 2857 Furumachi, Nagawa, Nagano
386-0603, Japan
| | - H. Misawa
- Yodakubo Hospital, Spine
Centre, 2857 Furumachi, Nagawa, Nagano
386-0603, Japan
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Ozawa K, Funabashi N, Takaoka H, Uehara M, Fujimoto Y, Kobayashi Y. 320 slice CT-based aortic wall tissue invasion into ostium of left main coronary artery did not have relationship with coronary risk factors and coronary arteriosclerosis and stenosis on CT and CAG. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p3141] [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: 11/12/2022] Open
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19
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Ozawa K, Funabashi N, Takaoka H, Ueda M, Uehara M, Kobayashi Y. The CHA2DS2-VASc score predicts 320-slice CT based coronary artery plaques and >50% stenosis in subjects with chronic and paroxysmal atrial fibrillation. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p5139] [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: 11/14/2022] Open
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20
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Takaoka H, Funabashi N, Daimon M, Uehara M, Ozawa K, Kobayashi Y. Absolute values of late enhancement volume is superior to percentage of late enhancement volume per total LV myocardium volume to predict MACE in hypertrophic cardiomyopathy: a CMR Study. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.4666] [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: 11/14/2022] Open
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21
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Abdo M, Hosaka YZ, Erasha A, Nada M, Ali S, Uehara M. Prenatal Development of the Eye Tunics in the Dromedary Camel (Camelus dromedarius). Anat Histol Embryol 2013; 43:257-64. [DOI: 10.1111/ahe.12069] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2012] [Accepted: 05/01/2013] [Indexed: 11/30/2022]
Affiliation(s)
- M. Abdo
- Department of Veterinary Anatomy, Faculty of Agriculture; Tottori University; 101 minami 4-chome Koyama-cho Tottori-shi Tottori 680-8553 Japan
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine; Menoufyia University Sadat City Branch; Sadat City 32897 Egypt
| | - Y. Z. Hosaka
- Department of Veterinary Anatomy, Faculty of Agriculture; Tottori University; 101 minami 4-chome Koyama-cho Tottori-shi Tottori 680-8553 Japan
| | - A. Erasha
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine; Menoufyia University Sadat City Branch; Sadat City 32897 Egypt
| | - M. Nada
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine; Menoufyia University Sadat City Branch; Sadat City 32897 Egypt
| | - S. Ali
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine; Menoufyia University Sadat City Branch; Sadat City 32897 Egypt
| | - M. Uehara
- Department of Veterinary Anatomy, Faculty of Agriculture; Tottori University; 101 minami 4-chome Koyama-cho Tottori-shi Tottori 680-8553 Japan
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Yamagishi K, Iso H, Kokubo Y, Saito I, Yatsuya H, Ishihara J, Inoue M, Tsugane S, Sobue T, Hanaoka T, Ogata J, Baba S, Mannami T, Okayama A, K. Y, Miyakawa K, Saito F, Koizumi A, Sano Y, Hashimoto I, Ikuta T, Tanaba Y, Miyajima Y, Suzuki N, Nagasawa S, Furusugi Y, Nagai N, Sanada H, Hatayama Y, Kobayashi F, Uchino H, Shirai Y, Kondo T, Sasaki R, Watanabe Y, Miyagawa Y, Kobayashi Y, Machida M, Kishimoto Y, Takara E, Fukuyama T, Kinjo M, Irei M, Sakiyama H, Imoto K, Yazawa H, Seo T, Seiko A, Ito F, Shoji F, Saito R, Murata A, Minato K, Motegi K, Fujieda T, Abe T, Katagiri M, Suzuki M, Matsui K, Doi M, Terao A, Ishikawa Y, Tagami T, Doi H, Urata M, Okamoto N, Ide F, Sueta H, Sakiyama H, Onga N, Takaesu H, Uehara M, Horii F, Asano I, Yamaguchi H, Aoki K, Maruyama S, Ichii M, Takano M, Matsushima S, Natsukawa S, Akabane M, Konishi M, Okada K, Honda Y, Sakurai KYS, Tsuchiya N, Sugimura H, Tsubono Y, Kabuto M, Tominaga S, Iida M, Ajiki W, Ioka A, Sato S, Yasuda N, Nakamura K, Kono S, Suzuki K, Takashima Y, Yoshida M, Maruyama E, Yamaguchi M, Matsumura Y, Sasaki S, Watanabe S, Kadowaki T, Noda M, Mizoue T, Kawaguchi Y, Shimizu H. Dietary intake of saturated fatty acids and incident stroke and coronary heart disease in Japanese communities: the JPHC Study. Eur Heart J 2013; 34:1225-32. [DOI: 10.1093/eurheartj/eht043] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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23
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Nishitai R, Manaka D, Hamasu S, Konishi S, Sakamoto K, Yoshino K, Kanto S, Yokoyama D, Uehara M. 435. Unfavorable Effect of Preoperative Chemotherapy for Initially Resectable Colorectal Liver Metastases. Eur J Surg Oncol 2012. [DOI: 10.1016/j.ejso.2012.06.394] [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: 10/27/2022] Open
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24
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Morotomi T, Wada M, Uehara M, Enjo M, Isogai N. Effect of local environment, fibrin, and basic fibroblast growth factor incorporation on a canine autologous model of bioengineered cartilage tissue. Cells Tissues Organs 2012; 196:398-410. [PMID: 22677647 DOI: 10.1159/000336029] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/20/2011] [Indexed: 11/19/2022] Open
Abstract
We developed a technique to form a bioabsorbable synthetic polymer (polyglycolic acid, PGA) combined with a natural polymer (fibrin) to serve as a scaffold to help retain seeded cells and improve the seeding efficiency of chondrocytes in an implantable construct. This approach was evaluated in a canine autologous implant model of bioengineered cartilage. The implantation site (subcutaneous or intrafascial) and the use of basic fibroblast growth factor (b-FGF) were also evaluated with this system. The intrafascial implantation site yielded optimal results, especially when used in conjunction with fibrin and a b-FGF sustained-release system incorporated into the complex. A thicker, more sustained cartilagenous layer was formed, with a more vascularized outer fibrous supporting tissue layer. This combined approach of implant environment selection, natural polymer for cell retention, and growth factor supplementation offers a more optimized method for generating bioengineered auricular cartilage.
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Affiliation(s)
- T Morotomi
- Department of Plastic and Reconstructive Surgery, Kinki University School of Medicine, Osaka, Japan
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Uehara M, Yasuhara D, Nakahara T, Harada T, Koyama KI, Ushikai M, Asakawa A, Inui A. Increase in Energy Intake Leads to a Decrease in Obestatin in Restricting-Type of Anorexia Nervosa. Exp Clin Endocrinol Diabetes 2011; 119:536-9. [DOI: 10.1055/s-0031-1279703] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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Oyanagi H, Sun ZH, Jiang Y, Uehara M, Nakamura H, Yamashita K, Zhang L, Lee C, Fukano A, Maeda H. In situ XAFS experiments using a microfluidic cell: application to initial growth of CdSe nanocrystals. J Synchrotron Radiat 2011; 18:272-279. [PMID: 21335916 DOI: 10.1107/s0909049510050545] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2010] [Accepted: 12/02/2010] [Indexed: 05/30/2023]
Abstract
The design and performance of a compact fluorescense XAFS apparatus equipped with a microfluidic cell for in situ studies of nanoparticles are described. CdSe nanoparticles were prepared by solution reaction starting from trioctylphosphine-Se. Time-resolved experiments were performed by precisely controlling the reactor coordinates (x,y), allowing the synchrotron X-ray beam to travel along a reactor channel, covering nucleation and initial growth of nanoparticles. Detailed analysis of EXAFS data combined with UV-vis spectra allow reliable estimation of particle size and density in the initial growth that cannot be accessible by conventional optical techniques based on a long-range order. The Se K-XANES spectra are interpreted by multi-scattering calculations providing bond formation kinetics consistent with the EXAFS data.
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Affiliation(s)
- H Oyanagi
- Photonics Research Institute, National Institute of Advanced Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan.
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Koyama KI, Yasuhara D, Nakahara T, Harada T, Uehara M, Ushikai M, Asakawa A, Inui A. Changes in acyl ghrelin, des-acyl ghrelin, and ratio of acyl ghrelin to total ghrelin with short-term refeeding in female inpatients with restricting-type anorexia nervosa. Horm Metab Res 2010; 42:595-8. [PMID: 20411479 DOI: 10.1055/s-0030-1252017] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Restricting type of anorexia nervosa (AN-R) is a serious disorder affecting adolescents and young adults and decreases quality of life over a long period. Successful weight restoration is an important prognostic factor for disease outcome; however, the underlying mechanism of refeeding resistance, a core psychopathology relevant to 'ambivalent' eating behaviors, remains unclear in this disorder. Ghrelin plays an important role in the regulation of growth hormone release, appetite, and energy metabolism. However, the early progress of these patients and changes in the levels of acyl ghrelin and des-acyl ghrelin during treatment were not reported. The purpose of this study was to determine the changes in ghrelin levels (acyl and des-acyl) during early treatment. As a result, des-acyl ghrelin in AN-R patients is higher than in control subjects before the therapy, but it decreases with treatment. The plasma des-acyl ghrelin level in AN-R patients started decreasing more rapidly and in early stage of the hospitalization than ever reported, and after 8 weeks, it is significantly lower than in control subjects. It means that des-acyl ghrelin is sensitive and changeable with their nutrition state. Furthermore, the ratio of the acyl ghrelin to total ghrelin increases with 8 weeks treatment. Eight weeks after, energy intake of the AN-R patients is recovered near the normal range with a daily energy intake of 1 700+/-93.54 kcal. These findings may be valuable for future AN-R treatments in order to increase acyl ghrelin and decrease des-acyl ghrelin, thereby influencing the refeeding outcome.
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Affiliation(s)
- K-I Koyama
- Department of Social and Behavioral Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
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28
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Sugiura S, Fujimiya M, Ebise H, Miyahira Y, Kato I, Sugiura Y, Kimura T, Uehara M, Sato H, Sugiura H. Immunosuppressive effect of prolactin-induced protein: a new insight into its local and systemic role in chronic allergic contact dermatitis. Br J Dermatol 2010; 162:1286-93. [PMID: 20302584 DOI: 10.1111/j.1365-2133.2010.09756.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Prolactin-induced protein (PIP) has been shown to bind to CD4 and is speculated to block CD4-HLA-DR interaction. However, the immunomodulatory effect of PIP on chronic allergic contact dermatitis (ACD) remains to be elucidated. OBJECTIVES To define the role of PIP during the immunoresponse. METHODS Using a low-dose oxazolone-induced mouse chronic ACD model, expression of PIP was examined immunohistologically. Furthermore, effects of continued exposure to a peptide mimicking the major binding site of PIP (amino acids 106-132) for CD4 was examined in a mouse chronic ACD model. RESULTS We clarified that keratinocytes, dermal infiltrating cells and spleen infiltrating mononuclear cells are positively stained with anti-PIP antibody. The PIP peptide significantly downregulated oxazolone-induced mouse ACD compared with controls. We also found that inflammation of the control ear, to which the PIP peptide had not been applied, was also suppressed in a synchronized manner in the late phase of ACD. CONCLUSIONS These findings suggest that PIP might have a local and systemic immunosuppressive effect in mouse chronic ACD.
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Affiliation(s)
- S Sugiura
- Faculty of Science, Kyoto University, Kyoto, Japan
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29
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Yanase Y, Nakamura M, Uehara M, Tabuchi M, Baba T, Kanki K, Hashimoto A, Higami T. [Off-pump coronary artery bypass surgery for the ischemic cardiomyopathy patient with moderate mitral regurgitation and stenosis of bilateral vertebral arteries]. Kyobu Geka 2009; 62:875-879. [PMID: 19764492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We report a 71-year-old man who had severe coronary and cerebral vascular disease with moderate mitral regurgitation (MR). Left ventricular reconstruction and mitral valve surgery were considered for poor left ventricular function and dilatation with MR. However, low blood pressure during cardiac arrest was risk for stroke due to severe stenosis of bilateral vertebral arteries. The myocardial viability of the anterior wall and inferior wall was confirmed by thallium-201 rest-redistribution single photon emission computed tomography (SPECT). Therefore, off-pump coronary artery bypass grafting (OPCAB) was selected for the patient. Only three Lima sutures were used for keeping the optimal heart position. Coronary anastomoses were done in sequence right gastroepiploic artery (RGEA)-#4 posterior descending (PD), left internal thoracic artery (LITA)-#9-#14 (sequential), RITA-#8 left anterior descending (LAD). No neurological complication occurred postoperatively. Left ventricular function and MR gradually improved. Final ejection fraction (EF) is 51% and MR is trivial. This case demonstrated improvement of MR by only revascularization according to preoperative viability assessment.
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Affiliation(s)
- Yohsuke Yanase
- Department of Thoracic and Cardiovascular Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
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30
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Uehara M, Tobita T, Ikeda M, Shibahara K, Tajima N, Shiraishi T, Asahina I. Experience of superselective intra-arterial infusion and concurrent radiochemotherapy in the treatment of oral cancer. Int J Oral Maxillofac Surg 2009. [DOI: 10.1016/j.ijom.2009.03.161] [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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31
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Uehara M, Nakajima T, Nakajima S, Watanabe A, Higami T, Inoue N. [Pulmonary pleomorphic carcinoma; an investigation of thirteen cases]. Kyobu Geka 2009; 62:89-95. [PMID: 19202925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Pleomorphic carcinoma is a rare pulmonary epithelial malignant tumor defined in the World Health Organization classification updated in 1999. We investigated the clinical findings and prognosis associated with this tumor since to our knowledge they have yet to be well-understood. Between 2000 and 2006, in our hospital 387 patients underwent surgical resection for primary nonsmall cell lung carcinoma (NSCLC). Of these, 13 (3.4%) were diagnosed as pleomorphic carcinoma. We compared the clinical and pathological data between the patients with pleomorphic carcinoma (n = 13) and patients with other NSCLC (n = 374). Twelve (92.3%) of our patients were men and 9 (69.2%) were symptomatic. These tumors were located predominantly in an upper lobe and were associated more often with adjacent bullae than were other NSCLC. Surgical resection in 4 of the cases was incomplete due to tumor invasion into mediastinum, aortic arch, pleurae and/or chest wall. None of the diagnoses could be confirmed preoperatively. Thus, invasion of surrounding tissue occurred frequently and early. Although there are no defined management strategies for pleomorphic carcinoma, it is important to make the diagnosis early and perform complete resection if possible.
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Affiliation(s)
- M Uehara
- Department of Second Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
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Nanashima A, Araki M, Tobinaga S, Kunizaki M, Hidaka S, Shibata K, Mochinaga K, Sawai T, Isomoto H, Ohnita K, Uehara M, Nagayasu T. Relationship between period of survival and clinicopathological characteristics in patients with colorectal liver metastasis. Eur J Surg Oncol 2009; 35:504-9. [PMID: 19167860 DOI: 10.1016/j.ejso.2009.01.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2008] [Revised: 12/25/2008] [Accepted: 01/02/2009] [Indexed: 12/27/2022] Open
Abstract
AIM Cancer death in the early period after hepatectomy still occurs in patients with colorectal liver metastasis (CLM). We examined the relationship between clinicopathological parameters and survival periods in 130 CLM patients who underwent hepatectomy. PATIENTS/METHODS Patients were divided into four groups: Group 1 (5-year survivors without tumor relapse), Group 2 (survivors at 2-5 years), Group 3 (cancer death at 2-5 years), and Group 4 (cancer death within 2 years). RESULTS A short surgical margin was frequent in Group 4 compared to Group 1 (31 vs. 78%, P<0.05). Primary node-positive status, absence of fibrous pseudo-capsular formation, higher Clinical Risk Score, and tumor recurrence within 12 months were frequent in Group 4 (P<0.05). Multivariate analysis revealed a short surgical margin (HR; 3.5) and early tumor relapse (HR; 5.9) as independently significant related parameters (P<0.05). CONCLUSIONS Sufficient surgical margins and careful follow-up for early tumor relapse may be important for improving postoperative outcomes for CLM patients.
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Affiliation(s)
- A Nanashima
- Division of Surgical Oncology, Department of Translational Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan.
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Tanaka K, Roberts MH, Yamamoto N, Sugiura H, Uehara M, Hopkin JM. Upregulating promoter polymorphisms of RANTES relate to atopic dermatitis. Int J Immunogenet 2007; 33:423-8. [PMID: 17117952 DOI: 10.1111/j.1744-313x.2006.00635.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
It has been reported that a functional polymorphism in the promoter of the RANTES gene (-403G/A) is associated with atopic dermatitis in a German population. Although there are several reports on the association of RANTES promoter polymorphisms (-403G/A and -28C/G) with asthma, the association of these polymorphisms with atopic dermatitis has not yet been confirmed in other populations. We therefore aimed to test whether the RANTES promoter polymorphisms relate to atopic dermatitis in a well-defined Japanese population. We conducted an association study of upregulating promoter polymorphisms of RANTES (-403G/A and -28C/G) in 389 patients with atopic dermatitis and 177 healthy control subjects. There was a significant association between the upregulating variant of RANTES -28G and atopic dermatitis, while -403A variant showed a significant association with atopic dermatitis with high IgE productivity. These results support a role for RANTES promoter polymorphisms in susceptibility to atopic dermatitis.
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Affiliation(s)
- K Tanaka
- Experimental Medicine Unit, School of Medicine, University of Wales Swansea, Singleton Park, Swansea SA2 8PP, UK.
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Ono M, Ishii K, Uehara M, Fukami T, Ikeda S, Ito K. Significance of postmortem computed tomography in death diagnosis: investigation of the characteristics in patients with cardiopulmonary arrest on arrival. Crit Care 2007. [PMCID: PMC4095487 DOI: 10.1186/cc5594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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35
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Matsuzaki H, Katsumata S, Uehara M, Miwa M, Suzuki K. Onset of nephrocalcinosis depends on dietary phosphorus concentration in male rats fed a magnesium-deficient diet. Magnes Res 2006; 19:255-60. [PMID: 17402293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Although a magnesium (Mg)-deficient diet is generally known to induce nephrocalcinosis, our previous study observed that despite the administration of a Mg-deficient diet, the kidney calcium (Ca) and phosphorus (P) concentrations were not increased in male rats. We speculated that this result was due to the P concentration of the experimental diet based on the AIN-93G formula used in the previous study. In the present study, male rats were fed modified AIN-93G diets containing the two different Mg concentrations [0.5 g per kg diet (normal-Mg) or Mg-free (Mg-deficient)] and three different P concentrations [3 (3-P), 5 (5-P) or 7 (7-P) g per kg diet]. By histological examination of the kidney, nephrocalcinosis was not observed in rats fed on the Mg-deficient diet containing 3-P While nephrocalcinosis appeared in rats fed on the Mg-deficient diet containing 5-P and 7-P The degree of nephrocalcinosis was severe in rats fed on the Mg-deficient diet containing 7-P compared with rats fed on the Mg-deficient diet containing 5-P These results demonstrated that the Mg-deficient diet based on AIN-93G formula dose not induce nephrocalcinosis and that the Mg-deficient diet based on AIN-93G formula with increased dietary P concentrations induces nephrocalcinosis in male rats. We suggest that the onset of nephrocalcinosis could depend on the dietary P concentration in male rats fed on a Mg-deficient diet.
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Affiliation(s)
- H Matsuzaki
- Department of Nutrition, Junior College of Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo 156-8502, Japan.
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Imagawa T, Yamamoto E, Sawada M, Okamoto M, Uehara M. Expression of lactate dehydrogenase-A and -B messenger ribonucleic acids in chick glycogen body. Poult Sci 2006; 85:1232-8. [PMID: 16830864 DOI: 10.1093/ps/85.7.1232] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Glucose is a main metabolic substrate in the central nervous system (CNS). Recently, lactate has attracted renewed attention because it plays an important role in the CNS as a metabolic substrate between neurons and astrocytes. Lactate and lactate dehydrogenase (LDH), a key enzyme for lactate and pyruvate interconversion, have been investigated. The glycogen body (GB) is a gelatinous tissue in the dorsal area of the lumbosacral spinal cord in birds. It is composed of uniform cells with high glycogen storage and is thought to be in the astroglia lineage. In this article, we investigated the LDH enzyme activity in embryo GB (embryonic d 12, 14, 16, 17, and 18) and chickens. To detect the subtype of the LDH, mRNA expressions in GB were investigated and compared with those of cerebral cortex and spinal cord. By histochemical observations, LDH enzyme activity was detected in the cytoplasm of GB cells of all embryonic periods after embryonic d 12. In biochemical analysis, the enzymatic activities of the GB were higher than in the cerebral cortex. In the GB the subtype of LDH mRNA was LDM-B only, and in the cerebral cortex and spinal cord, the subtype of LDH mRNA was predominantly LDH-B, and a small amount of LDH-A was found in the chicken and embryo. The LDH-B mRNA expression in GB was detected during all periods of the study (after embryonic d 12). These observations suggest that GB expressed only LDH-B and that GB cells are not lactate-producing cells, like astrocyte, but rather are lactate-consuming cells, similar to neurons in CNS.
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Affiliation(s)
- T Imagawa
- Department of Veterinary Anatomy, Faculty of Agriculture, Tottori University, Japan.
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Nemoto T, Matsuzaki H, Uehara M, Suzuki K. Magnesium-deficient diet-induced reduction in protein utilization in rats is reversed by dietary magnesium supplementation. Magnes Res 2006; 19:19-27. [PMID: 16846097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
We investigated the effect of dietary magnesium (Mg) level on protein utilization in rats. Male Wistar rats were fed a control diet (control group) and a Mg-deficient diet (Mg-deficient group) for 28 days. After 28 days, the diet of half of the Mg-deficient group (recovery group) was changed from the Mg-deficient diet to the control diet for either 7 or 14 days. After 28 days, final body weight, weight gain and food efficiency were significantly decreased due to the Mg-deficient diet. Apparent Mg absorption, Mg retention and serum Mg levels were also significantly decreased due to the Mg-deficient diet. Furthermore, the Mg-deficient group showed a significant increase in urinary nitrogen (N) excretion and significant decreases in N retention and serum albumin level. At day 7 and 14 after changing the Mg-deficient diet to the control diet, apparent Mg absorption, Mg retention and serum Mg levels were significantly increased in the recovery group as compared with those in the Mg-deficient group. However, with regard to final body weight, weight gain and food efficiency, no significant differences were observed between the Mg-deficient group and the recovery group. At day 14 after changing the diet, urinary N excretion was significantly decreased and N retention was significantly increased in the recovery group as compared with the Mg-deficient group. At day 7 and 14 after changing the diet, the serum albumin level was also significantly increased in the recovery group as compared with that in the Mg-deficient group. These results suggest that: 1) the Mg-deficient diet depresses protein utilization; 2) the Mg-deficient diet-induced impairment of protein utilization is reversed by dietary Mg supplementation; and 3) the Mg-deficient diet-induced growth retardation is not completely reversed after 14 days of Mg supplementation.
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Affiliation(s)
- T Nemoto
- Department of Nutritional Science, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo 156-8502, Japan
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Uehara M, Shibahara K, Fujita S, Tobita T, Ohba S, Fujisawa A, Nonaka M, Inokuchi T. Epithelioid hemangioendothelioma of tongue: A case report with immunohistochemical studies. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.ooe.2005.09.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Katsumata SI, Matsuzaki H, Tsuboi R, Uehara M, Suzuki K. Moderate magnesium-restricted diet affects bone formation and bone resorption in rats. Magnes Res 2006; 19:12-8. [PMID: 16846096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
This study investigated the effects of moderate magnesium (Mg)-restricted diet on bone formation and bone resorption in rats. Weanling Wistar strain rats were randomly divided into three dietary groups of 6 rats each and fed their respective diets; a control diet containing 0.05% Mg (C), a half Mg diet containing 0.025% Mg (1/2Mg), or a one-fifth Mg diet containing 0.01% Mg (1/5Mg), for 21 days. Serum osteocalcin level was significantly reduced with decreasing dietary Mg level. Urinary excretion of C-terminal telopeptide of type 1 collagen was significantly higher in the 1/5Mg group than in the C group. Serum insulin-like growth factor-1 (IGF-1) level was significantly lower in the 1/2Mg and 1/5Mg groups than in the C group. Serum soluble receptor activator of nuclear factor-kappaB ligand (sRANKL) level was significantly higher in the 1/2Mg and 1/5Mg groups than in the C group. These results showed that a moderate Mg-restricted diet induced a decrease in bone formation and an increase in bone resorption. Furthermore, these changes of bone formation and bone resorption might be caused by serum IGF-1 and sRANKL levels, respectively.
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Affiliation(s)
- S I Katsumata
- Department of Nutritional Science, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, Japan
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Nonaka M, Ikeda H, Fujisawa A, Uehara M, Inokuchi T. Induction of apoptosis by paclitaxel in human oral carcinoma cells. Int J Oral Maxillofac Surg 2006; 35:649-52. [PMID: 16513327 DOI: 10.1016/j.ijom.2006.01.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2005] [Revised: 08/19/2005] [Accepted: 01/16/2006] [Indexed: 11/24/2022]
Abstract
The present study investigated induction of apoptosis in NB-1 oral carcinoma cells by paclitaxel and the expression of Bcl-2 and Bax in relation to this apoptotic cell death. Paclitaxel induced apoptotic cell death in NB-1 cells in a dose- and a time-dependent manner. The present results suggest that paclitaxel can induce apoptosis of NB-1 cells, which may be mediated by down-regulation of Bcl-2 together with up-regulation of Bax.
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Affiliation(s)
- M Nonaka
- Department of Developmental and Reconstructive Medicine, Division of Oral & Maxillofacial Surgical Reconstruction and Functional Restoration, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8588, Japan.
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Shien T, Tashiro T, Omatsu M, Masuda T, Furuta K, Sato N, Akashi-Tanaka S, Uehara M, Iwamoto E, Kinoshita T, Fukutomi T, Tsuda H, Hasegawa T. Frequent overexpression of epidermal growth factor receptor (EGFR) in mammary high grade ductal carcinomas with myoepithelial differentiation. J Clin Pathol 2006; 58:1299-304. [PMID: 16311351 PMCID: PMC1770787 DOI: 10.1136/jcp.2005.026096] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AIMS To evaluate the expression of common biological markers and the epidermal growth factor receptor (EGFR) in mammary high grade ductal carcinomas with myoepithelial differentiation (DCMDs). MATERIALS/METHODS Thirty DCMDs were clinicopathologically and immunohistochemically analysed and compared with 36 control cases of high grade conventional invasive ductal carcinoma (IDC). RESULTS EGFR, HER2/neu, oestrogen receptor, progesterone receptor, and p53 expression was seen in 21, one, three, four, and 20 of the 30 DCMDs, compared with eight, nine, 18, 17, and five of the 36 conventional IDCs (p<0.05), respectively. In 16 of the 30 DCMDs, metastases were found in the brain, lung, bone, and liver, within a maximum of 47 months (mean, 13.9) after initial surgery, whereas only four of the 36 conventional IDCs metastasised to the lung and bone within a maximum of 27 months (mean, 18.0) after initial surgery (p=0.0001). There was a significant difference in disease free survival between DCMD and conventional IDC (p=0.001). EGFR was frequently overexpressed in DCMD compared with conventional IDC, whereas the expression of HER2/neu and hormone receptors was lower in DCMD. Fluorescent in situ hybridisation revealed that the mean EGFR to chromosome 7 centromere (CEP7) ratio of the 24 DCMD cases available for evaluation was 1.03, and EGFR gene amplification was not detected in the 21 DCMD cases with EGFR overexpression. CONCLUSION Immunohistochemistry for myoepithelial markers and EGFR is useful for the accurate diagnosis and molecular target treatment of high grade DCMD.
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Affiliation(s)
- T Shien
- Division of Surgical Oncology, National Cancer Centre Hospital, Tokyo 104-0045, Japan
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Ikeda H, Fujita S, Nonaka M, Uehara M, Tobita T, Inokuchi T. Cystic lymphangioma arising in the tip of the tongue in an adult. Int J Oral Maxillofac Surg 2005; 35:274-6. [PMID: 16185846 DOI: 10.1016/j.ijom.2005.07.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2004] [Revised: 01/11/2005] [Accepted: 07/14/2005] [Indexed: 10/25/2022]
Abstract
Cystic lymphangioma is a benign malformation of the lymphatic channels. Most cystic lymphangiomas are present at birth and are usually diagnosed in infancy or early childhood. The head and neck region appears to be the favored site for cystic lymphangiomas. We present the first reported case of a cystic lymphangioma arising from the tip of the tongue in a 75-year-old male.
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Affiliation(s)
- H Ikeda
- Division of Oral and Maxillofacial Surgical Reconstruction and Functional Restoration, Department of Developmental and Reconstructive Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
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Katsumata SI, Matsuzaki H, Uehara M, Suzuki K. Effect of dietary magnesium supplementation on bone loss in rats fed a high phosphorus diet. Magnes Res 2005; 18:91-6. [PMID: 16100846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The purpose of this study was to investigate the effect of dietary magnesium (Mg) supplementation on bone loss in rats fed a high phosphorus (P) diet. Weanling Wistar strain rats were randomly divided into four dietary groups of 6 rats each and fed their respective diets; a diet containing 0.3% P and 0.05% Mg (C), a diet containing 1.5% P and 0.05% Mg (HP), a diet containing 0.3% P and 0.15% Mg (HMg), or a diet containing 1.5% P and 0.15% Mg (HPMg), for 21 days. Compared to the C and HMg groups, serum parathyroid hormone (PTH) concentration was significantly higher in the HP and HPMg groups. Serum osteocalcin concentration and urinary excretion of C-terminal telopeptides of type I collagen (CTx), markers of bone turnover, were significantly higher in the HP and HPMg groups than in the C and HMg groups. Dietary Mg supplementation had no significant effects on serum PTH and osteocalcin concentrations, while urinary excretion of CTx was significantly lower in the HPMg group than in the HP group. These results suggested that dietary Mg supplementation suppressed bone resorption due to high P diet.
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Affiliation(s)
- S I Katsumata
- Department of Nutritional Science, Faculty of Applied Bioscience, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo 156-8502, Japan
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Matsuzaki H, Katsumata SI, Uehara M, Suzuki K, Nakamura K. Effects of high calcium intake on bone metabolism in magnesium-deficient rats. Magnes Res 2005; 18:97-102. [PMID: 16100847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
We examined the effects of high calcium (Ca) intake on bone metabolism in magnesium (Mg)-deficient rats. Male Wistar rats were divided into three groups, with each group having a similar mean body weight, and fed a control diet (control group), a Mg-deficient diet (Mg-deficient group) or a Mg-deficient Ca-supplemented diet (Mg-deficient Ca-supplemented group) for 14 d. Femoral Ca content was significantly lower in the Mg-deficient Ca-supplemented group than in the control group and Mg-deficient group. Femoral Mg content was significantly lower in the Mg-deficient group and Mg-deficient Ca-supplemented group than in the control group. Furthermore, femoral Mg content was significantly lower in the Mg-deficient Ca-supplemented group than in the Mg-deficient group. Serum osteocalcin levels (a biochemical marker of bone formation) were significantly lower in the two Mg-deficient groups than in the control group. As a biochemical marker of bone resorption, urinary deoxypyridinoline excretion was significantly higher in the Mg-deficient Ca-supplemented group than in the control group and Mg-deficient group. The results in the present study suggest that high Ca intake had no preventive effect on alteration of bone metabolism in Mg-deficient rats.
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Affiliation(s)
- H Matsuzaki
- Department of Nutrition, Junior College of Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo 156-8502, Japan
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Sugiura H, Ebise H, Tazawa T, Tanaka K, Sugiura Y, Uehara M, Kikuchi K, Kimura T. Large-scale DNA microarray analysis of atopic skin lesions shows overexpression of an epidermal differentiation gene cluster in the alternative pathway and lack of protective gene expression in the cornified envelope. Br J Dermatol 2005; 152:146-9. [PMID: 15656815 DOI: 10.1111/j.1365-2133.2005.06352.x] [Citation(s) in RCA: 134] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Atopic dermatitis (AD)-specific genes have not yet been clarified. Objectives To identify gene expression specific to active atopic skin lesions. METHODS We analysed 23,000 genes in skin biopsy samples from 17 patients with AD and four normal controls using Affymetrix oligonucleotide arrays. RESULTS Four of the 10 genes with the greatest differences in expression between patients and controls, S100A8 and S100A7 (upregulated), and loricrin and filaggrin (downregulated), were epidermal differentiation genes located on 1q21, a locus previously reported to have a genetic linkage with AD. CONCLUSIONS Our results, showing downregulation of the cornified envelope genes and upregulation of the alternative keratinization pathway, are the first to suggest abnormal epidermal differentiation and defective defences as key abnormalities in AD.
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Affiliation(s)
- H Sugiura
- Department of Dermatology, Shiga University of Medical Science, Seta Otsu 520-2192, Japan.
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Khanal A, Nakashima K, Kawasaki N, Oishi Y, Uehara M, Nakamura H, Tajima Y. Fabrication of organic–inorganic nano-complexes using ABC type triblock copolymer and polyoxotungstates. Colloid Polym Sci 2005. [DOI: 10.1007/s00396-005-1302-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Yamamoto N, Sugiura H, Tanaka K, Uehara M. Heterogeneity of interleukin 5 genetic background in atopic dermatitis patients: significant difference between those with blood eosinophilia and normal eosinophil levels. J Dermatol Sci 2004; 33:121-6. [PMID: 14581138 DOI: 10.1016/s0923-1811(03)00149-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND Blood eosinophil levels in patients with atopic dermatitis vary widely during exacerbation of the disease. We considered that in addition to environmental factors, the genetic background involved with elevating blood eosinophil levels might be heterogeneous among atopic dermatitis patients. OBJECTIVE We attempted to determine whether a polymorphism of the interleukin (IL)5 gene plays a role in atopic dermatitis, particularly in those patients with blood eosinophilia. Due to the close relation of blood eosinophilia to high IgE productivity, we also assessed these polymorphisms in patients with high IgE concentrations. METHODS We determined the genotype of the IL5 polymorphism -703C/T in 451 atopic dermatitis patients and 116 normal subjects. The patients were classified into three groups by blood eosinophil levels; less than 7%, from 7 to 15%, and more than 15%, as well as by serum IgE concentrations; less than 500 IU/ml, from 500 to 2000 IU/ml, and more than 2000 IU/ml. RESULTS IL5 -703C/T was not significantly associated with either total atopic dermatitis patients or individual patients who had both blood eosinophilia and high IgE productivity. However, the distribution of the IL5 -703C/T genotype was significantly different between patients with either blood eosinophilia or high IgE productivity and those without either condition (P=0.0476, P=0.0088, respectively). CONCLUSION These results suggest that the IL5 gene may play a role in blood eosinophilia associated with atopic dermatitis. We also considered that the IL5 -703C/T gene polymorphism does not have a direct relationship to disease specificity.
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Affiliation(s)
- N Yamamoto
- Department of Dermatology, Shiga University of Medical Science, Tsukinowa-cho, Seta, 520-2192, Otsu, Japan
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Uehara M. Prevalence of hypertension among patients with atopic dermatitis: reply from author. Br J Dermatol 2003. [DOI: 10.1046/j.1365-2133.2003.05097_16.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Abstract
BACKGROUND Patients with atopic dermatitis show a tendency for vasoconstriction of the small vessels in the skin. As peripheral vasoconstriction contributes to the cause of hypertension, it is natural to suppose that blood pressures might be on the high side in adult patients with atopic dermatitis. In the literature, however, there was little information on the subject. OBJECTIVES To study the incidence of hypertension in adult patients with atopic dermatitis. PATIENTS/METHODS Blood pressure was measured in 521 adult patients with active atopic dermatitis (235 males; 286 females) aged 30-59 years, and 87 adults with "healed" atopic dermatitis (26 males; 61 females) aged 34-52 years. The blood pressures were classified as definite hypertension, borderline hypertension or normal blood pressure. RESULTS In those patients aged 30-39 years with active atopic dermatitis, the incidence of definite hypertension in the male patients and the female patients was 1.1% and 1.6%, respectively. The incidence remained almost at a plateau for the 30-39-year-old age group through to the 50-59-year-old age group, in both the male and female patients. There was no difference in the incidence of definite hypertension between patients with severe dermatitis and patients with mild dermatitis. Adult patients with "healed" atopic dermatitis also showed a low incidence of definite hypertension. CONCLUSIONS These findings indicate that hypertension is rare in adult patients with atopic dermatitis. It is most probable that the rarity of hypertension is a primary feature of the disease.
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Affiliation(s)
- M Uehara
- Department of Dermatology, Shiga University of Medical Science, Tsukinowa-cho, Seta, Otsu 520-2192, Japan.
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