1
|
Ueda H, Katakami S, Okada M, Yoshida S, Nakai Y, Mito T, Mizumaki M. Efficient NMR measurement and data analysis supported by the Bayesian inference: The case of the heavy fermion compound YbCo 2Zn 20. J Magn Reson 2023; 357:107585. [PMID: 37952430 DOI: 10.1016/j.jmr.2023.107585] [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] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 10/30/2023] [Accepted: 10/31/2023] [Indexed: 11/14/2023]
Abstract
We propose a data-driven technique to infer microscopic physical quantities from nuclear magnetic resonance (NMR) spectra, in which the data size and quality required for the Bayesian inference are investigated. The 59Co-NMR measurement of YbCo2Zn20 single crystal generates complex spectra with 28 peaks. By exploiting the site symmetry in the crystal structure, the isotropic Knight shift Kiso and nuclear quadrupole resonance (NQR) frequency νQ were respectively estimated to be Kiso=0.7822±0.0090% and νQ=2.008±0.016 MHz (T=20 K and H≃10.2 T) by analyzing only 30 data points from one spectrum. The estimated νQ is consistent with the precise value obtained in the NQR experiment. Our method can significantly reduce the measurement time and the computational cost of data analysis in NMR experiments.
Collapse
Affiliation(s)
- H Ueda
- Department of Complexity Science and Engineering, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - S Katakami
- Department of Complexity Science and Engineering, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - M Okada
- Department of Complexity Science and Engineering, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8561, Japan.
| | - S Yoshida
- Department of Material Science, Graduate School of Science, University of Hyogo, Ako-gun, Hyogo, 678-1297, Japan
| | - Y Nakai
- Department of Material Science, Graduate School of Science, University of Hyogo, Ako-gun, Hyogo, 678-1297, Japan
| | - T Mito
- Department of Material Science, Graduate School of Science, University of Hyogo, Ako-gun, Hyogo, 678-1297, Japan
| | - M Mizumaki
- Faculty of Science, Course for Physical Sciences, Kumamoto University, Kurokami, Kumamoto 860-8555, Japan
| |
Collapse
|
2
|
Nakabori H, Yamamoto Y, Katagiri J, Saito N, Ueda H, Iino K, Murata A, Kimura K, Takemura H. [Right Atrial Blood Cyst with Patent Foramen Ovale:Report of a Case]. Kyobu Geka 2023; 76:962-965. [PMID: 38056957] [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: 12/08/2023]
Abstract
A woman in 70s was diagnosed with lung cancer, and a right atrial mass was discovered incidentally during preoperative examination by contrast-enhanced computed tomography (CT). Transesophageal echocardiography revealed a 20-mm, stemmed, spherical mass with low internal echogenicity and partially high echogenicity extending from the junction of the inferior vena cava to the posterior wall of the right atrium. Patent foramen ovale( PFO) was also confirmed. To avoid embolization and obtain diagnosis, the patient was referred for right atrial tumor resection. Cardiopulmonary bypass was established; the right atrial tumor was removed while the patient was in cardiac arrest. The tumor membrane was thin and easily ruptured, revealing jelly-like blood content and calcified mass. The patient recovered well after surgery and was discharged on day 15. According to the pathological examination, the tumor was a blood cyst. This is an extremely rare case of a blood cyst with PFO.
Collapse
Affiliation(s)
- Hiroki Nakabori
- Department of Cardiovascular Surgery, Kanazawa University, Kanazawa, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
3
|
Ikegawa T, Kim KS, Kawataki M, Ichikawa Y, Ono S, Yanagi S, Ueda H. Late-gestation prediction of outcome in tricuspid valve dysplasia and Ebstein's anomaly using fetal tricuspid regurgitation waveform analysis. Ultrasound Obstet Gynecol 2023; 61:593-600. [PMID: 36273401 DOI: 10.1002/uog.26097] [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] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 10/05/2022] [Accepted: 10/12/2022] [Indexed: 05/04/2023]
Abstract
OBJECTIVE To investigate the criteria, based on fetal TR waveforms in late gestation, to predict biventricular circulation (BV) after birth in cases of tricuspid valve dysplasia (TVD) or Ebstein's anomaly diagnosed during the fetal period. METHODS We included 35 consecutive cases diagnosed with TVD or Ebstein's anomaly during the fetal period between January 2008 and December 2021 at Kanagawa Children's Medical Center, Kanagawa, Japan. The maximum velocity and change in pressure over time of tricuspid regurgitation (TR) jet (dP/dt), estimated using TR waveforms obtained during the late-gestation period (gestational age ≥ 28 weeks), were collected from patient records. dP/dt was calculated by dividing the change in estimated right ventricular pressure obtained using Bernoulli's principle by the time taken for the TR maximum velocity to change from one-third to two-thirds of its peak value. The outcome was divided into four categories: BV, single ventricular circulation, neonatal death and fetal death. Patients with BV were included in the BV group, while patients with single ventricular circulation, neonatal death or fetal death were included in the non-BV (NBV) group. RESULTS Overall, 19 and 16 patients were included in the BV and NBV groups, respectively. The median TR maximum velocity was 3.3 (range, 2.4-3.6) m/s in the BV group and 1.9 (range, 1.0-3.3) m/s in the NBV group. There were no cases of postnatal BV in fetuses with TR maximum velocity < 2.4 m/s; cases with TR maximum velocity of 2.4-3.3 m/s were observed in both BV and NBV groups. Receiver-operating-characteristics-curve analysis was performed on the 11 patients in the BV group and five patients in the NBV group with a TR maximum velocity of 2.4-3.3 m/s. dP/dt ≥ 350 mmHg/s and TR maximum velocity ≥ 2.9 m/s were identified as criteria for predicting the outcome in such cases. The performance of dP/dt ≥ 350 mmHg/s in predicting BV after birth in fetuses with TVD or Ebstein's anomaly was higher compared to that of TR maximum velocity ≥ 2.9 m/s (sensitivity, 90.9% vs 72.3% and specificity, 80.0% vs 80.0%, respectively). CONCLUSIONS In fetuses with TVD or Ebstein's anomaly, the postnatal outcome may be BV or NBV when the TR maximum velocity is 2.4-3.3 m/s. In such cases, by combining the TR maximum velocity with dP/dt ≥ 350 mmHg/s, BV after birth may be predicted with greater accuracy. © 2022 International Society of Ultrasound in Obstetrics and Gynecology.
Collapse
Affiliation(s)
- T Ikegawa
- Department of Cardiology, Kanagawa Children's Medical Center, Kanagawa, Japan
| | - K-S Kim
- Department of Cardiology, Kanagawa Children's Medical Center, Kanagawa, Japan
| | - M Kawataki
- Department of Neonatology, Kanagawa Children's Medical Center, Kanagawa, Japan
| | - Y Ichikawa
- Department of Cardiology, Kanagawa Children's Medical Center, Kanagawa, Japan
| | - S Ono
- Department of Cardiology, Kanagawa Children's Medical Center, Kanagawa, Japan
| | - S Yanagi
- Department of Cardiology, Kanagawa Children's Medical Center, Kanagawa, Japan
| | - H Ueda
- Department of Cardiology, Kanagawa Children's Medical Center, Kanagawa, Japan
| |
Collapse
|
4
|
YOKOTE S, Ueda H, Shimizu A, Okabe M, Haruhara K, Sasaki T, Tsuboi N, Yokoo T. WCN23-1022 Persistent microscopic hematuria in IgA nephropathy and frequency of gross hematuria following SARS-CoV-2 mRNA vaccination. Kidney Int Rep 2023. [PMCID: PMC10025605 DOI: 10.1016/j.ekir.2023.02.991] [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: 03/22/2023] Open
|
5
|
Iino K, Yamamoto Y, Ueda H, Takemura H. Spontaneous left atrial dissection due to mitral regurgitation. JTCVS Tech 2022; 17:76-78. [PMID: 36820360 PMCID: PMC9938388 DOI: 10.1016/j.xjtc.2022.11.012] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 11/11/2022] [Accepted: 11/21/2022] [Indexed: 12/14/2022] Open
Affiliation(s)
- Kenji Iino
- Address for reprints: Kenji Iino, MD, PhD, Department of Cardiovascular Surgery, Kanazawa University, 13-1 Takaramachi, Kanazawa 920-8641, Japan.
| | | | | | | |
Collapse
|
6
|
Kawagoe Y, Otuka F, Onozuka D, Ueda H, Ikeda Y, Ogo K, Matsumoto M, Amemiya K, Asaumim Y, Kataoka Y, Nishimura K, Miyamoto Y, Noguchi T, Hatakeyama K, Yasuda S. Early vascular responses to abluminal biodegradable polymer-coated versus circumferential durable polymer-coated newer-generation drug-eluting stents in humans: a pathologic study. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Recent clinical trials are testing strategies for short (1–3 months) dual antiplatelet therapy (DAPT) following newer-generation drug-eluting stent (DES) placement. However, the safety of short DAPT regimens is not supported by biological evidence in humans.
Purpose
We sought to evaluate early pathologic responses to newer-generation DES by comparing abluminal biodegradable polymer-coated DES (BP-DES) with circumferential durable polymer-coated DES (DP-DES) in human autopsy cases.
Methods
The study included a total of 37 coronary lesions with thin strut newer-generation DES (DP-DES=23 [XIENCE=18, Resolute Integrity=5] and BP-DES=14 [SYNERGY=9, Ultimaster=5]) with duration of implantation <90 days in 25 autopsy cases. The process of stent healing was precisely evaluated for every single strut in association with underlying tissue characteristics. The degree of strut coverage was defined as follows: grade 0 (bare struts), grade 1 (struts covered with thrombus, fibrin, or other tissues or cells without endothelium), grade 2 (struts covered with single-layered endothelium without underlying smooth muscle cell layers), and grade 3 (struts covered with endothelium and underlying smooth muscle cell layers) (Figure 1).
Results
Duration of implantation was similar in lesions with DP-DES and those with BP-DES (median=20 vs. 17 days). A total of 1986 struts (DP-DES=1261, BP-DES=725) were pathologically analyzed. Focal grade 2 coverage was observed as early as 5 days after the implantation in both stents. Multilevel mixed-effects ordered logistic regression model demonstrated that BP-DES exhibited greater strut coverage compared with DP-DES (odds ratio; 3.50, 95% CI; 1.31–9.41, P=0.013), which remained significant after adjustment for duration of implantation and underlying tissue characteristics (odds ratio; 2.64, 95% CI; 1.04–6.68, P=0.040). The time course of vessel healing assessed as predictive probability of strut coverage (grade 0–3) stratified by duration of implantation is shown in Figure 2. Predictive probability of grade 2 and 3 coverage was comparably limited at 30 days (DP-DES=17.7% vs. BP-DES=29.0%) and increased at 90 days (DP-DES=76.1% vs. BP-DES=85.9%). Both stents showed few inflammation and similar degree of fibrin deposition.
Conclusions
The current first pathologic study on early biological responses to newer-generation DES in humans demonstrated that single-layered endothelial coverage begins in days following the stent placement, and abluminal BP-DES potentially exhibit faster strut coverage with smooth muscle cell infiltration than circumferential DP-DES. Nevertheless, vessel healing remains suboptimal at 30 days in both DP- and BP-DES, which progresses with time to become substantial at 90 days. Our results suggest that very short duration of DAPT for 1 month should be applied with caution, taking into account the trade-off between bleeding and thrombotic risks.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Grant-in-Aid for Scientific Research (C) from the Japan Society for the Promotion of Science
Collapse
Affiliation(s)
- Y Kawagoe
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine , Suita , Japan
| | - F Otuka
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine , Suita , Japan
| | - D Onozuka
- Kyoto Prefectural University of Medicine, Department of Medical Informatics and Clinical Epidemiology , Kyoto , Japan
| | - H Ueda
- National Cerebral & Cardiovascular Center, Department of Pathology , Suita , Japan
| | - Y Ikeda
- National Cerebral & Cardiovascular Center, Department of Pathology , Suita , Japan
| | - K Ogo
- National Cerebral & Cardiovascular Center, Department of Pathology , Suita , Japan
| | - M Matsumoto
- National Cerebral & Cardiovascular Center, Department of Pathology , Suita , Japan
| | - K Amemiya
- National Cerebral & Cardiovascular Center, Department of Pathology , Suita , Japan
| | - Y Asaumim
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine , Suita , Japan
| | - Y Kataoka
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine , Suita , Japan
| | - K Nishimura
- National Cerebral & Cardiovascular Center, Department of Preventive Medicine and Epidemiology , Suita , Japan
| | - Y Miyamoto
- National Cerebral & Cardiovascular Center, Open Innovation Center , Suita , Japan
| | - T Noguchi
- National Cerebral & Cardiovascular Center, Department of Cardiovascular Medicine , Suita , Japan
| | - K Hatakeyama
- National Cerebral & Cardiovascular Center, Department of Pathology , Suita , Japan
| | - S Yasuda
- Tohoku University Graduate School of Medicine, Department of Cardiovascular Medicine , Sendai , Japan
| |
Collapse
|
7
|
Iino K, Yamamoto Y, Ueda H, Takemura H. Two - patch technique with BioGlue for ventricular septal rupture resulting from acute anterior myocardial infarction. JTCVS Tech 2022; 13:83-86. [PMID: 35711228 PMCID: PMC9196318 DOI: 10.1016/j.xjtc.2022.02.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 02/16/2022] [Indexed: 10/25/2022] Open
|
8
|
Tanizaki J, Yonemori K, Akiyoshi K, Minami H, Ueda H, Takiguchi Y, Miura Y, Segawa Y, Takahashi S, Iwamoto Y, Kidera Y, Fukuoka K, Ito A, Chiba Y, Sakai K, Nishio K, Nakagawa K, Hayashi H. Open-label phase II study of the efficacy of nivolumab for cancer of unknown primary. Ann Oncol 2021; 33:216-226. [PMID: 34843940 DOI: 10.1016/j.annonc.2021.11.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [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: 07/23/2021] [Revised: 10/31/2021] [Accepted: 11/21/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Cancer of unknown primary (CUP) has a poor prognosis. Given the recent approval of immune checkpoint inhibitors for several cancer types, we carried out a multicenter phase II study to assess the efficacy of nivolumab for patients with CUP. PATIENTS AND METHODS Patients with CUP who were previously treated with at least one line of systemic chemotherapy constituted the principal study population. Previously untreated patients with CUP were also enrolled for exploratory analysis. Nivolumab (240 mg/body) was administered every 2 weeks for up to 52 cycles. The primary endpoint was objective response rate in previously treated patients as determined by blinded independent central review according to RECIST version 1.1. RESULTS Fifty-six patients with CUP were enrolled in the trial. For the 45 previously treated patients, objective response rate was 22.2% [95% confidence interval (CI), 11.2% to 37.1%], with a median progression-free survival and overall survival of 4.0 months (95% CI, 1.9-5.8 months) and 15.9 months (95% CI, 8.4-21.5 months), respectively. Similar clinical benefits were also observed in the 11 previously untreated patients. Better clinical efficacy of nivolumab was apparent for tumors with a higher programmed death-ligand 1 expression level, for those with a higher tumor mutation burden, and for microsatellite instability-high tumors. In contrast, no differences in efficacy were apparent between tumor subgroups based on estimated tissue of origin. Adverse events were consistent with the known safety profile of nivolumab. No treatment-related death was observed. CONCLUSIONS Our results demonstrate a clinical benefit of nivolumab for patients with CUP, suggesting that nivolumab is a potential additional therapeutic option for CUP.
Collapse
Affiliation(s)
- J Tanizaki
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - K Yonemori
- Department of Breast and Medical Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - K Akiyoshi
- Department of Medical Oncology, Osaka City General Hospital, Osaka, Japan
| | - H Minami
- Medical Oncology/Hematology, Department of Medicine, Kobe University Hospital and Graduate School of Medicine, Kobe, Japan
| | - H Ueda
- Respiratory Medicine and Medical Oncology, Wakayama Medical University, Wakayama, Japan
| | - Y Takiguchi
- Department of Medical Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Y Miura
- Department of Medical Oncology, Toranomon Hospital, Tokyo, Japan
| | - Y Segawa
- Department of Medical Oncology, International Medical Center, Saitama Medical University, Hidaka, Japan
| | - S Takahashi
- Department of Medical Oncology, Tohoku University Hospital, Sendai, Japan
| | - Y Iwamoto
- Department of Medical Oncology, Hiroshima City Hospital Organization, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan
| | - Y Kidera
- Clinical Research Center, Kindai University Hospital, Osakasayama, Japan
| | - K Fukuoka
- Clinical Research Center, Kindai University Hospital, Osakasayama, Japan
| | - A Ito
- Department ofPathology, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - Y Chiba
- Clinical Research Center, Kindai University Hospital, Osakasayama, Japan
| | - K Sakai
- Department of Genome Biology, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - K Nishio
- Department of Genome Biology, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - K Nakagawa
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - H Hayashi
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osakasayama, Japan.
| |
Collapse
|
9
|
Ozawa Y, Harutani Y, Oyanagi J, Murakami E, Sato K, Akamatsu H, Hayata A, Teraoka S, Ueda H, Kitamura Y, Fukuoka J, Tokudome N, Nakanishi M, Koh Y, Yamamoto N. P60.08 Impact of CD24 and CD47 Tumor Expression on Efficacy and Serum Cytokine Alteration with PD-1/L1 Inhibitors in Non-Small Cell Lung cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.967] [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]
|
10
|
Takago S, Matsumoto I, Kato H, Saito N, Ueda H, Iino K, Kimura K, Takemura H. Hypothermic preservation of rat hearts using antifreeze glycoprotein. Physiol Res 2020; 69:1029-1038. [PMID: 33251809 DOI: 10.33549/physiolres.934473] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Antifreeze proteins are an effective additive for low-temperature preservation of solid organs. Here, we compared static hypothermic preservation with and without antifreeze glycoprotein (AFGP), followed by nonfreezing cryopreservation of rat hearts. The heart was surgically extracted and immersed in one of the cardioplegia solutions after cardiac arrest. Control rat hearts (n=6) were immersed in University of Wisconsin (UW) solution whereas AFGP-treated hearts (AFGP group) (n=6) were immersed in UW solution containing 500 ?g/ml AFGP. After static hypothermic preservation, a Langendorff apparatus was used to reperfuse the coronary arteries with oxygenated Krebs-Henseleit solution. After 30, 60, 90, and 120 min, the heart rate (HR), coronary flow (CF), cardiac contractile force (max dP/dt), and cardiac diastolic force (min dP/dt) were measured. Tissue water content (TWC) and tissue adenosine triphosphate (ATP) levels in the reperfused preserved hearts were also assessed. All the parameters were compared between the control and AFGP groups. Compared with the control group, the AFGP group had significantly (p<0.05) higher values of the following parameters: HR at 60, 90, and 120 min; CF at all four time points; max dP/dt at 90 min; min dP/dt at 90 and 120 min; and tissue ATP levels at 120 min. TWC did not differ significantly between the groups. The higher HR, CF, max dP/dt, min dP/dt, and tissue ATP levels in the AFGP compared with those in control hearts suggested that AFGP conferred superior hemodynamic and metabolic functions. Thus, AFGP might be a useful additive for the static/nonfreezing hypothermic preservation of hearts.
Collapse
Affiliation(s)
- S Takago
- Department of Cardiovascular Surgery, Kanazawa University, Kanazawa, Ishikawa, Japan.
| | | | | | | | | | | | | | | |
Collapse
|
11
|
Kobayashi Y, Nagai T, Kamiya K, Konishi T, Sato T, Omote K, Kato Y, Komoriyama H, Tsujinaga S, Iwano H, Kusano K, Yasuda S, Ogawa H, Ueda H, Anzai T. Long-term prognostic significance of dispersion of ventricular repolarization in patients with cardiac sarcoidosis. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Although the presence of cardiac involvement is recognised as a determinant of worse clinical outcomes in sarcoidosis patients, the determinants of adverse outcomes in patients with cardiac sarcoidosis (CS) have not been well understood. T-peak to T-end interval (TpTe) on the surface electrocardiogram (ECG) was proposed as a marker of dispersion of ventricular repolarisation. Prolonged TpTe to QT interval ratio (TpTe/QT) represents a period of potential vulnerability to reentrant ventricular arrhythmias. Notably, prolonged TpTe/QT has been associated with increased risk of mortality in hypertrophic cardiomyopathy, congenital long-QT syndrome, and Brugada syndrome. However, its prognostic implication in patients with CS is unclear.
Purpose
We sought to investigate whether TpTe/QT was associated with long-term clinical outcomes in patients with CS.
Methods
A total of 108 consecutive CS patients between August 1986 and March 2019 in two academic hospitals who had ECG data before initiation of immunosuppressive therapy were examined. We excluded patients who received pacemaker (n=15) or cardiac resynchronization therapy (n=3) at the time of ECG. Ultimately, 90 CS patients were included in this study. All standard 12-lead ECGs were recorded at 25 mm/s with an amplification of 10 mm/mV. TpTe was measured from the peak of T wave to the end of T wave which defined as the intersection of the tangent to the down slope of the T wave and the isoelectric line. Lead V5 was selected for the analyses. If V5 is not suitable for analyses, V4 was selected. The primary outcome was the composite of advanced atrioventricular block (AVB), ventricular tachycardia or ventricular fibrillation (VT/VF), heart failure hospitalisation and all-cause death.
Results
During a median follow-up period of 4.70 (interquartile range [IQR] 2.06–7.23) years, adverse events occurred in 21 patients (23.3%), including 2 advanced AVB, 12 VT/VF, 4 heart failure hospitalisation and 3 all-cause death. Events group had higher TpTe/QT compared to no events group (0.231 [IQR 0.193–0.261] vs. 0.282 [IQR 0.263–0.304] P<0.001). Kaplan-Meier analyses revealed that the primary outcome, especially VT/VF or sudden cardiac death more frequently occurred in patients with higher TpTe/QT (≥0.242, the median) compared to those with lower TpTe/QT (Figure 1). Multivariable Cox regression analysis showed that higher TpTe/QT was independently associated with increased subsequent risk of adverse events (hazard ratio 1.09, 95% confidence interval [CI] 1.02–1.17, P=0.014) even after adjustment for age, sex and left ventricular ejection fraction. Furthermore, the optimal cut-off value of TpTe/QT for the discriminatory of primary outcome was 0.257, and c-index was 0.77 (95% CI 0.64–0.89).
Conclusions
Higher TpTe/QT was associated with worse long-term clinical outcomes in patients with CS. Our findings indicate the importance of assessing TpTe/QT for risk stratification in patients with CS.
Figure 1
Funding Acknowledgement
Type of funding source: None
Collapse
Affiliation(s)
- Y Kobayashi
- Hokkaido University, Department of Cardiovascular Medicine, Sapporo, Japan
| | - T Nagai
- Hokkaido University, Department of Cardiovascular Medicine, Sapporo, Japan
| | - K Kamiya
- Hokkaido University, Department of Cardiovascular Medicine, Sapporo, Japan
| | - T Konishi
- Hokkaido University, Department of Cardiovascular Medicine, Sapporo, Japan
| | - T Sato
- Hokkaido University, Department of Cardiovascular Medicine, Sapporo, Japan
| | - K Omote
- Hokkaido University, Department of Cardiovascular Medicine, Sapporo, Japan
| | - Y Kato
- Hokkaido University, Department of Cardiovascular Medicine, Sapporo, Japan
| | - H Komoriyama
- Hokkaido University, Department of Cardiovascular Medicine, Sapporo, Japan
| | - S Tsujinaga
- Hokkaido University, Department of Cardiovascular Medicine, Sapporo, Japan
| | - H Iwano
- Hokkaido University, Department of Cardiovascular Medicine, Sapporo, Japan
| | - K Kusano
- National Cerebral and Cardiovascular Center Hospital, Department of Cardiovascular Medicine, Osaka, Japan
| | - S Yasuda
- National Cerebral and Cardiovascular Center Hospital, Department of Cardiovascular Medicine, Osaka, Japan
| | - H Ogawa
- National Cerebral and Cardiovascular Center Hospital, Department of Cardiovascular Medicine, Osaka, Japan
| | - H Ueda
- National Cerebral and Cardiovascular Center Hospital, Department of Clinical Pathology, Osaka, Japan
| | - T Anzai
- Hokkaido University, Department of Cardiovascular Medicine, Sapporo, Japan
| |
Collapse
|
12
|
Takago S, Iino K, Saito N, Ueda H, Yamamoto Y, Kimura K, Takemura H. Partial aortic root remodeling for chronic aortic dissection with coronary intimal tear. Gen Thorac Cardiovasc Surg 2020; 69:744-747. [PMID: 33125594 DOI: 10.1007/s11748-020-01532-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 10/16/2020] [Indexed: 11/24/2022]
Abstract
While there are many reports on partial aortic root remodeling, it is rarely performed for chronic aortic dissection of the coronary artery. This report presents a case of a 69-year-old man incidentally diagnosed with aortic dissection during routine checkup. He had a history of percutaneous coronary intervention from the left main trunk to the left anterior descending artery and left circumflex artery. Computed tomography revealed a chronic type A aortic dissection with an aneurysmal aortic root. The false lumen of the Valsalva sinus originated from the left anterior descending artery and expanded largely to the non-coronary Valsalva sinus. We performed partial aortic root remodeling, resecting the dissected non-coronary Valsalva sinus. The postoperative course was uneventful. Partial aortic root remodeling was effective, but its use might be controversial for chronic aortic dissection without resection of the primary entry of the left anterior descending artery. Moreover, close follow-up is required.
Collapse
Affiliation(s)
- Shintaro Takago
- Department of Cardiovascular Surgery, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan.
| | - Kenji Iino
- Department of Cardiovascular Surgery, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Naoki Saito
- Department of Cardiovascular Surgery, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Hideyasu Ueda
- Department of Cardiovascular Surgery, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Yoshitaka Yamamoto
- Department of Cardiovascular Surgery, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Keiichi Kimura
- Department of Cardiovascular Surgery, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Hirofumi Takemura
- Department of Cardiovascular Surgery, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| |
Collapse
|
13
|
Ono M, Oh A, Ota M, Miyaguchi Y, Ueda H, Kinai E. PRO12 Investigation of Consistency of Haemophilia a Care in JAPAN: A Claims-Based Cohort Study. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.507] [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]
|
14
|
Takago S, Kato H, Ueda H, No H, Yamamoto Y, Iino K, Kimura K, Takemura H. [Coil Embolization for an Aberrant Left Subclavian Artery Aneurysm with Kommerell's Diverticulum;Report of a Case]. Kyobu Geka 2019; 72:1019-1022. [PMID: 31701915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A 67-year-old woman encountered a traffic accident and had chest computed tomography(CT) examination. It revealed a 24 mm Kommerell's diverticulum associated with a right-sided aortic arch and a 15 mm saccular aneurysm of an aberrant left subclavian artery. We performed intra-aneurysmal coil embolization for the left subclavian artery aneurysm after a balloon occlusion test of the left subclavian artery. The postoperative course was uneventful.
Collapse
Affiliation(s)
- Shintaro Takago
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, Kanazawa, Japan
| | | | | | | | | | | | | | | |
Collapse
|
15
|
Amemiya K, Mousseaux E, Ueda H, Ochiai M, Bruneval P. P6503Impact of ascending aortic disease categories on the histopathological degenerative changes in relation to aorta dimensions. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.1093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Recently a consensus statement on surgical pathology of the aorta was published to improve pathological assessment of non-inflammatory aortic diseases.
Purpose
We used data of the ascending aorta surgical specimens for aneurysm or dissection to better understand the relationship between the histological medial degenerative changes (MDC) and aortic size assessed by computed tomography.
Methods
In this retrospective single center study we retrieved 719 ascending aorta surgical specimens from January 2010 until June 2018 and analyzed them according to the consensus statement and scored MDC [elastic fiber fragmentation and/or loss (EFFL), smooth muscle nuclei loss (SMNL), mucoid extracellular matrix accumulation (MEMA); intralamellar (I) or translamellar (T)] and measured medial wall thickness on correlation with imaging data and the status [thoracic aorta aneurysm (TAA), dissection (TAD), bicuspid aortic valve (BAV) or non-BAV].
Results
We analyzed 517 patients with degenerative aortic diseases (mean age, 61 years) whose imaging data were obtained, with BAV in 203 (TAD 4%, TAA 96%) and with non-BAV in 314 (TAD 44%, TAA 56%). In TAA subset, scores of EFFL, SMNL and MEMA-T were lower in BAV than in non-BAV (p<0.01). Maximum aortic diameters averaged 50 mm in TAD and 53 mm in TAA. In relation to the aortic diameter, the scores of EFFL, SMNL and MEMA-T were more important in non-BAV subset than in BAV, and in TAD subset than in TAA particularly at the small aortic diameters (<50mm) (Figure). Independent predictors of aortic dissection included thicker medial wall (odds ratio [OR], 6.5; 95% confidence interval [CI], 2.6 to 17.6; p<0.0001) and greater SMNL (OR, 1.2; 95% CI, 1.1 to 1.3; p=0.003).
Conclusions
Non-BAV aortas were associated with higher scores of MDC than BAV aortas. Advanced MDC was correlated with increased aortic diameter in the ascending aortic diseases. However, in even smaller aortic diameters, MDC in patients with TAD was important.
Collapse
Affiliation(s)
- K Amemiya
- Hopital Europeen Georges Pompidou- University Paris Descartes, Paris, France
| | - E Mousseaux
- Hopital Europeen Georges Pompidou- University Paris Descartes, Paris, France
| | - H Ueda
- National Cerebral and Cardiovascular Center Hospital, Osaka, Japan
| | - M Ochiai
- Showa University Northern Yokohama Hospital, Division of Cardiology and Cardiac Catheterization Laboratories, Yokohama, Japan
| | - P Bruneval
- Hopital Europeen Georges Pompidou- University Paris Descartes, Paris, France
| |
Collapse
|
16
|
Pooh RK, Machida M, Nakamura T, Uenishi K, Chiyo H, Itoh K, Yoshimatsu J, Ueda H, Ogo K, Chaemsaithong P, Poon LC. Increased Sylvian fissure angle as early sonographic sign of malformation of cortical development. Ultrasound Obstet Gynecol 2019; 54:199-206. [PMID: 30381845 PMCID: PMC6772089 DOI: 10.1002/uog.20171] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 10/17/2018] [Accepted: 10/19/2018] [Indexed: 05/20/2023]
Abstract
OBJECTIVE To evaluate Sylvian fissure development by assessing Sylvian fissure angles in fetuses with malformation of cortical development (MCD). METHODS This was a retrospective study of 22 fetuses with MCD. Cases with a stored three-dimensional (3D) brain volume acquired at 18 + 0 to 30 + 6 weeks of gestation at an ultrasound-based research clinic between January 2010 and December 2017 were identified through a database. Of the 22 fetuses, seven had an extracranial abnormality, such as cardiac, renal, gastrointestinal and/or digital anomalies, and five had a minor abnormality such as micrognathia, low-set ears and/or single umbilical artery. To confirm the final clinical diagnosis of brain abnormality, postmortem histological findings or prenatal or postnatal magnetic resonance images were used. For measurement of Sylvian fissure angle, an anterior coronal plane of the fetal brain on transvaginal 3D volume multiplanar imaging was visualized as a single image from the three orthogonal views. The right and left Sylvian fissure angles were measured between a horizontal reference line (0°) and a line drawn along the upper side of the respective Sylvian fissure. The Sylvian fissure angle on both sides was plotted on the graphs of the reference ranges for gestational age in weeks. RESULTS In 21 (95.5%; 95% CI, 86.8-100.0%) of 22 fetuses with MCD, the Sylvian fissure angle on one or both sides was larger than the 90th percentile of the normal reference. There was one case with apparent focal MCD in the parietal lobe, but the Sylvian fissure angles were normal. A case with apparent unilateral cortical dysplasia and one with apparent unilateral schizencephaly had conspicuous discrepancies between the left and right Sylvian fissure angles. Abnormal genetic test results were obtained in six cases, including four cases with a mutation in a single gene. CONCLUSIONS This study has shown that the Sylvian fissures, as defined by the Sylvian fissure angle, have delayed development in most MCD cases prior to the diagnosis of the condition. The Sylvian fissure angle may potentially be a strong indicator for the subsequent development of cortical malformation, before the time point at which the gyri and sulci become obvious on the fetal brain surface. Further research is required to validate these findings. © 2018 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of the International Society of Ultrasound in Obstetrics and Gynecology.
Collapse
Affiliation(s)
- R. K. Pooh
- CRIFM Clinical Research Institute of Fetal Medicine Pooh Maternity ClinicOsakaJapan
| | - M. Machida
- CRIFM Clinical Research Institute of Fetal Medicine Pooh Maternity ClinicOsakaJapan
| | - T. Nakamura
- CRIFM Clinical Research Institute of Fetal Medicine Pooh Maternity ClinicOsakaJapan
| | - K. Uenishi
- CRIFM Clinical Research Institute of Fetal Medicine Pooh Maternity ClinicOsakaJapan
| | - H. Chiyo
- CRIFM Clinical Research Institute of Fetal Medicine Pooh Maternity ClinicOsakaJapan
| | - K. Itoh
- Department of Pathology and Applied Neurobiology, Graduate School of Medical ScienceKyoto Prefectural University of MedicineKyotoJapan
| | - J. Yoshimatsu
- Department of Obstetrics and GynecologyNational Cerebral and Cardiovascular CenterOsakaJapan
| | - H. Ueda
- Department of PathologyNational Cerebral and Cardiovascular CenterOsakaJapan
| | - K. Ogo
- Department of PathologyNational Cerebral and Cardiovascular CenterOsakaJapan
| | - P. Chaemsaithong
- Department of Obstetrics and GynaecologyPrince of Wales Hospital, The Chinese University of Hong KongShatinHong Kong SAR
| | - L. C. Poon
- Department of Obstetrics and GynaecologyPrince of Wales Hospital, The Chinese University of Hong KongShatinHong Kong SAR
| |
Collapse
|
17
|
Rossi L, Bobel A, Wiedmann S, Küchler R, Motome Y, Penc K, Shannon N, Ueda H, Bryant B. Negative Thermal Expansion in the Plateau State of a Magnetically Frustrated Spinel. Phys Rev Lett 2019; 123:027205. [PMID: 31386536 DOI: 10.1103/physrevlett.123.027205] [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] [Received: 12/14/2018] [Revised: 04/04/2019] [Indexed: 06/10/2023]
Abstract
We report on negative thermal expansion (NTE) in the high-field, half-magnetization plateau phase of the frustrated magnetic insulator CdCr_{2}O_{4}. Using dilatometry, we precisely map the phase diagram at fields of up to 30 T and identify a strong NTE associated with the collinear half-magnetization plateau for B>27 T. The resulting phase diagram is compared with a microscopic theory for spin-lattice coupling, and the origin of the NTE is identified as a large negative change in magnetization with temperature, coming from a nearly localized band of spin excitations in the plateau phase. These results provide useful guidelines for the discovery of new NTE materials.
Collapse
Affiliation(s)
- L Rossi
- High Field Magnet Laboratory (HFML-EMFL), Radboud University, 6525 ED Nijmegen, Netherlands
- Institute of Molecules and Materials, Radboud University, 6525 AJ Nijmegen, Netherlands
| | - A Bobel
- High Field Magnet Laboratory (HFML-EMFL), Radboud University, 6525 ED Nijmegen, Netherlands
- Institute of Molecules and Materials, Radboud University, 6525 AJ Nijmegen, Netherlands
| | - S Wiedmann
- High Field Magnet Laboratory (HFML-EMFL), Radboud University, 6525 ED Nijmegen, Netherlands
- Institute of Molecules and Materials, Radboud University, 6525 AJ Nijmegen, Netherlands
| | - R Küchler
- Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany
| | - Y Motome
- Department of Applied Physics, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8656, Japan
| | - K Penc
- Institute for Solid State Physics and Optics, Wigner Research Centre for Physics, Hungarian Academy of Sciences, H-1525 Budapest, Hungary
| | - N Shannon
- Okinawa Institute of Science and Technology Graduate University, Onna-son, Okinawa 904-0495, Japan
- Department of Physics, Technische Universität München, D-85748 Garching, Germany
| | - H Ueda
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - B Bryant
- High Field Magnet Laboratory (HFML-EMFL), Radboud University, 6525 ED Nijmegen, Netherlands
- Institute of Molecules and Materials, Radboud University, 6525 AJ Nijmegen, Netherlands
| |
Collapse
|
18
|
Iino K, Yamamoto Y, Ueda H, Takemura H. Beating aortic valve replacement surgery as an alternative to transcatheter aortic valve implantation in a patient with severe aortic stenosis and left ventricular dysfunction. J Cardiothorac Surg 2018; 13:132. [PMID: 30587212 PMCID: PMC6307304 DOI: 10.1186/s13019-018-0818-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 12/10/2018] [Indexed: 11/10/2022] Open
Abstract
Background Transcatheter aortic valve implantation (TAVI) is the standard treatment for high-risk patients with aortic stenosis (AS); however, alternative treatments for patients who are ineligible for TAVI are controversial. Case presentation 56 year-old female who required 6 γ dobutamine support due to congestive heart failure was diagnosed as severe aortic stenosis with bicuspid valve. Echocardiography revealed left ventricular ejection fraction (LVEF) was 15%. The patient was relatively young for TAVI, and TAVI was not licensed for patient presenting with a bicuspid aortic valve in places other than the limited institutions in Japan. On pump beating aortic valve replacement (AVR) was performed with selective antegrade coronary artery blood perfusion. She resumed a completely normal lifestyle by 3 weeks after the operation. Conclusions A relatively young patient for TAVI who was diagnosed as aortic stenosis with severely reduced ejection fraction and bicuspid valve is reported. Beating AVR with a continuously selective antegrade-perfusion was achieved safely with good clinical results in a patient with severely reduced left ventricular (LV) function. Beating AVR can be considered as a potential alternative for patients who are ineligible for conventional surgical aortic valve replacement (SAVR) and TAVI.
Collapse
Affiliation(s)
- Kenji Iino
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, 13-1 Takaramachi, Kanazawa, 920-8641, Japan.
| | - Yoshitaka Yamamoto
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, 13-1 Takaramachi, Kanazawa, 920-8641, Japan
| | - Hideyasu Ueda
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, 13-1 Takaramachi, Kanazawa, 920-8641, Japan
| | - Hirofumi Takemura
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, 13-1 Takaramachi, Kanazawa, 920-8641, Japan
| |
Collapse
|
19
|
Goto T, Kakita H, Takasu M, Takeshita S, Ueda H, Muto D, Kondo T, Kurahashi H, Okumura A, Yamada Y. A rare case of fetal extensive intracranial hemorrhage and whole-cerebral hypoplasia due to latent maternal vitamin K deficiency. J Neonatal Perinatal Med 2018; 11:191-194. [PMID: 29843264 DOI: 10.3233/npm-181745] [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] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We present here a late preterm infant with extensive brain lesions resulting from vitamin K deficiency. A female infant was born after 35 weeks of gestation by emergent cesarean section because of non-reassuring fetal status. Her mother had severe eating disorder and recurrent vomiting since early pregnancy. She was immediately intubated and ventilated because she was extremely pale, hypotonic, and non-reactive. Cerebral magnetic resonance imaging immediately after birth showed intraparenchymal hemorrhage in the left frontal lobe and cerebellum, marked cerebral edema, and cerebellar hypoplasia. Coagulation studies of the infant showed hepaplastin test <5%, prolonged PT and APTT, and a marked elevation of protein induced by vitamin K absence or antagonist-II. This case highlighted a potential risk of intracranial bleeding due to maternal vitamin K deficiency and difficulty in its prediction before delivery. Vitamin K supplementation to high risk mothers might be indispensable for preventing severe fetal vitamin K deficiency. Even when coagulation studies in mothers is normal, it is imperative to provide vitamin K supplementation for total protection.
Collapse
Affiliation(s)
- T Goto
- Department of Perinatal and Neonatal Medicine, Aichi Medical University Sciences, Karimata, Nagakute, Aichi, Japan
| | - H Kakita
- Department of Perinatal and Neonatal Medicine, Aichi Medical University Sciences, Karimata, Nagakute, Aichi, Japan
| | - M Takasu
- Department of Pediatrics, Aichi Medical University Sciences, Karimata, Nagakute, Aichi, Japan
| | - S Takeshita
- Department of Perinatal and Neonatal Medicine, Aichi Medical University Sciences, Karimata, Nagakute, Aichi, Japan
| | - H Ueda
- Department of Perinatal and Neonatal Medicine, Aichi Medical University Sciences, Karimata, Nagakute, Aichi, Japan
| | - D Muto
- Department of Perinatal and Neonatal Medicine, Aichi Medical University Sciences, Karimata, Nagakute, Aichi, Japan
| | - T Kondo
- Department of Perinatal and Neonatal Medicine, Aichi Medical University Sciences, Karimata, Nagakute, Aichi, Japan
| | - H Kurahashi
- Department of Pediatrics, Aichi Medical University Sciences, Karimata, Nagakute, Aichi, Japan
| | - A Okumura
- Department of Pediatrics, Aichi Medical University Sciences, Karimata, Nagakute, Aichi, Japan
| | - Y Yamada
- Department of Perinatal and Neonatal Medicine, Aichi Medical University Sciences, Karimata, Nagakute, Aichi, Japan
| |
Collapse
|
20
|
Ueda H, Minase G, Miyamoto T, Iijima M, Saijo Y, Nakashima M, Matsumoto N, Namiki M, Sengoku K. Single-nucleotide polymorphisms in ETV5: a risk factor for Sertoli cell-only syndrome in Japanese men? CLIN EXP OBSTET GYN 2018. [DOI: 10.12891/ceog3797.2018] [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: 11/01/2022]
|
21
|
Miyamoto T, Abiko K, Itabashi A, Minase G, Ueda H, Sengoku K. MD-TESE-ICSI using fresh sperm resulted in a lower rate of miscarriage compared with frozen-thawed sperm. CLIN EXP OBSTET GYN 2018. [DOI: 10.12891/ceog3804.2018] [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: 11/01/2022]
|
22
|
Inoue M, Nakamura T, Shigeno K, Ueda H, Tamura N, Fukuda S, Liu Y, Nakahara T, Toba T, Yoshitani M, Iizuka T, Shimizu Y. Regeneration of the Junctional Epithelium and Connective Tissue after Transplantation of Detergent-Processed Allo-Teeth. Int J Artif Organs 2018. [DOI: 10.1177/039139880002301211] [Citation(s) in RCA: 2] [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] [Indexed: 11/16/2022]
Abstract
The authors have developed a new artificial dental implant and evaluated it in a dog model in terms of its potential to produce: I) regeneration of junctional epithelium; II) regeneration and attachment of connective tissue. The implants were constructed from allo-teeth. We removed the cell components from the periodontal ligaments of these teeth with a detergent (1% TritonX-100); the remaining acellular periodontal ligament acted as an extracellular matrix upon which regeneration and attachment could proceed. We placed 10 of these implants in the just-extracted sites of three beagle dogs. We observed regeneration of both junctional epithelium and connective tissue at all implant sites after 3 months. The connective tissue was attached in all cases. Use of the acellular periodontal ligament as an extracellular matrix may facilitate regeneration of host periodontal ligament tissue, thus contributing to recovery of host immunological defense and long-term oral function.
Collapse
Affiliation(s)
- M. Inoue
- Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Kyoto University, Kyoto - Japan
| | - T. Nakamura
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - K. Shigeno
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - H. Ueda
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - N. Tamura
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - S. Fukuda
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - Y. Liu
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - T. Nakahara
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - T. Toba
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - M. Yoshitani
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - T. Iizuka
- Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Kyoto University, Kyoto - Japan
| | - Y. Shimizu
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| |
Collapse
|
23
|
Nakamura T, Teramachi M, Sekine T, Kawanami R, Fukuda S, Yoshitani M, Toba T, Ueda H, Hori Y, Inoue M, Shigeno K, Taka TN, Liu Y, Tamura N, Shimizu Y. Artificial Trachea and Long Term follow-up in Carinal Reconstruction in Dogs. Int J Artif Organs 2018. [DOI: 10.1177/039139880002301010] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We have already reported “del” successful carinal reconstruction of the trachea with an observation period of 1 – 2 years. In this study, we evaluate the long-term safety and efficacy of the reconstruction after 5-years of follow-up. The Y-shaped Marlex® mesh tube was reinforced with a polypropylene spiral and coated with atelocollagen made from porcine skin. The prosthesis was 60 mm long with an outer diameter of 18 mm. Replacement of the tracheobronchial bifurcation was preformed through a right thoracotomy in a beagle dog. Bronchoscopical examination and sampling of the tracheal epithelium was performed periodically to check the function of cilia. The implanted prothesis was promptly infiltrated by the surrounding connective tissue and completely incorporated by the host trachea and bronchus. Bronchoscopically, sufficient epithelization was confirmed from the upper to the lower site of anastomosis. After 5 years neither stenosis nor dehiscence was observed. In spite of there being mesh-exposure at the luminal surface, the dog had no clinical symptoms until sacrifice for pathological examination. The bent frequency of the cilia was maintained within the normal range, indicating “del” functional recovery of the regenerating airway. Our tracheal prosthesis is promising for clinical “del” repair of the tracheobronchial bifurcation.
Collapse
Affiliation(s)
- T. Nakamura
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - M. Teramachi
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - T. Sekine
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - R. Kawanami
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - S. Fukuda
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - M. Yoshitani
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - T. Toba
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - H. Ueda
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - Y. Hori
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - M. Inoue
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - K. Shigeno
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - T. Nakahara Taka
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - Y. Liu
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - N. Tamura
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| | - Y. Shimizu
- Department of Bioartificial Organs, Institute for Frontier Medical Sciences, Kyoto University, Kyoto - Japan
| |
Collapse
|
24
|
Sanai H, Miyamoto T, Minase G, Sanai Y, Ueda H, Sengoku K. A case of a pregnant patient with antiphospholipid antibody syndrome, deep vein thrombosis, and heparin-induced thrombocytopenia who suffered an intrauterine fetal death. CLIN EXP OBSTET GYN 2017. [DOI: 10.12891/ceog3565.2017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
|
25
|
Sakano H, Ban S, Kaeriyama M, Ueda H, Shimazaki K. The interaction between lacustrine sockeye salmon (Oncorhynchus nerka) and pond smelt (Hypomesus nipponensis) in relation to the decline of zooplankton biomass in Lake Toya, northern Japan. ACTA ACUST UNITED AC 2017. [DOI: 10.1080/03680770.1998.11901712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
26
|
Shi S, Tatsuki F, Ueda H. A potential pharmacological target of insomnia: the molecules involved in the Ca2+-dependent hyperpolarization pathways play a pivotal role in the regulation of sleep homeostasis. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.894] [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: 11/29/2022]
|
27
|
Shibaki R, Akamatsu H, Mori K, Teraoka S, Kanai K, Hayata A, Tokudome N, Akamatsu K, Koh Y, Ueda H, Nakanishi M, Yamamoto N. PUB058 Is Efficacy Result in Phase 2 Trial Replicated in Phase 3 Trial in Advanced NSCLC: A Meta-Analysis. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
28
|
Ueda H, Akeura K, Iwamoto T, Fukasaka I, Terakawa H. Arterial spin-labeling magnetic resonance imagings in the cortical and internal watershed infarctions in patients with ipsilateral internal carotid artery stenosis/occlusion. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
29
|
Miyamoto T, Iijima M, Shin T, Minase G, Ueda H, Okada H, Sengoku K. CUL4B mutations are uncommon in Japanese patients with Sertoli-cell-only syndrome and azoospermia. J OBSTET GYNAECOL 2017; 38:293-294. [PMID: 28816568 DOI: 10.1080/01443615.2017.1336755] [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: 10/19/2022]
Affiliation(s)
- T Miyamoto
- a Department of Obstetrics and Gynecology , Asahikawa Medical University , Asahikawa , Japan
| | - M Iijima
- b Department of Urology , Kanazawa University Graduate School of Medical Science , Kanazawa , Japan
| | - T Shin
- c Department of Urology , Dokkyo Medical University Koshigaya Hospital , Koshigaya , Japan
| | - G Minase
- a Department of Obstetrics and Gynecology , Asahikawa Medical University , Asahikawa , Japan
| | - H Ueda
- a Department of Obstetrics and Gynecology , Asahikawa Medical University , Asahikawa , Japan
| | - H Okada
- c Department of Urology , Dokkyo Medical University Koshigaya Hospital , Koshigaya , Japan
| | - K Sengoku
- a Department of Obstetrics and Gynecology , Asahikawa Medical University , Asahikawa , Japan
| |
Collapse
|
30
|
Yamamoto Y, Iino K, Ueda H, No H, Nishida Y, Takago S, Shintani Y, Kato H, Kimura K, Takemura H. Coronary Artery Bypass Grafting in a Patient With Polyarteritis Nodosa. Ann Thorac Surg 2017; 103:e431-e433. [PMID: 28431718 DOI: 10.1016/j.athoracsur.2016.10.010] [Citation(s) in RCA: 7] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 09/07/2016] [Accepted: 10/05/2016] [Indexed: 12/01/2022]
Abstract
A 38-year-old man with polyarteritis nodosa presented with exertional chest pain. Coronary angiography revealed 3-vessel coronary artery disease. We performed 2-vessel coronary artery bypass grafting with the saphenous vein because the left internal thoracic artery was in poor condition. Histological examination of the left internal thoracic artery showed a strong effect of polyarteritis nodosa.
Collapse
Affiliation(s)
- Yoshitaka Yamamoto
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, Kanazawa, Japan.
| | - Kenji Iino
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, Kanazawa, Japan
| | - Hideyasu Ueda
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, Kanazawa, Japan
| | - Hironari No
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, Kanazawa, Japan
| | - Yoji Nishida
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, Kanazawa, Japan
| | - Shintaro Takago
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, Kanazawa, Japan
| | - Yoshiko Shintani
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, Kanazawa, Japan
| | - Hiroki Kato
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, Kanazawa, Japan
| | - Keiichi Kimura
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, Kanazawa, Japan
| | - Hirofumi Takemura
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, Kanazawa, Japan
| |
Collapse
|
31
|
Takeda H, Nakashima Y, Hosoi K, Ichimura K, Furuta T, Tomam M, Hatayama A, Ueda H, Yoshikawa M, Sakamoto M, Ichimura M, Imai T. Numerical Simulation Study for Background Plasma in the GAMMA 10 End-Mirror Cell. Fusion Science and Technology 2017. [DOI: 10.13182/fst13-a16972] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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)
- H. Takeda
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577
| | - Y. Nakashima
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577
| | - K. Hosoi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577
| | - K. Ichimura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577
| | - T. Furuta
- Science and Technology, Keio University, Yokohama, Kanagawa,223-8522
| | - M. Tomam
- Science and Technology, Keio University, Yokohama, Kanagawa,223-8522
| | - A. Hatayama
- Science and Technology, Keio University, Yokohama, Kanagawa,223-8522
| | - H. Ueda
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577
| | - M. Yoshikawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577
| | - M. Sakamoto
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577
| | - M. Ichimura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577
| | - T. Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577
| |
Collapse
|
32
|
Nakashima Y, Sakamoto M, Takeda H, Ichimura K, Hosoi K, Oki K, Yoshikawa M, Nishino N, Matsuura H, Hirata M, Ichimura M, Kariya T, Katanuma I, Kohagura J, Minami R, Numakura T, Ikezoe R, Akabane Y, Kigure S, Nagatsuka Y, Takahashi S, Ueda H, Imai T. First Results and Future Research Plan of Divertor Simulation Experiments Using D-Module in the End-Cell of the GAMMA 10/PDX Tandem Mirror. Fusion Science and Technology 2017. [DOI: 10.13182/fst13-a16881] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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)
- Y. Nakashima
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - M. Sakamoto
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - H. Takeda
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - K. Ichimura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - K. Hosoi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - K. Oki
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - M. Yoshikawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - N. Nishino
- Graduate school of Engineering, Hiroshima University, Hiroshima 739-8527, Japan
| | - H. Matsuura
- Radiation Research Center, Osaka Prefecture University, Osaka 599-8570, Japan
| | - M. Hirata
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - M. Ichimura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - T. Kariya
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - I. Katanuma
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - J. Kohagura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - T. Numakura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - R. Ikezoe
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - Y. Akabane
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - S. Kigure
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - Y. Nagatsuka
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - S. Takahashi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - H. Ueda
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - T. Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| |
Collapse
|
33
|
Chen EY, Leonard JBK, Ueda H. The behavioural homing response of adult chum salmon Oncorhynchus keta to amino-acid profiles. J Fish Biol 2017; 90:1257-1264. [PMID: 27873320 DOI: 10.1111/jfb.13225] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 10/18/2016] [Indexed: 06/06/2023]
Abstract
Adult chum salmon Oncorhynchus keta homing behaviour in a two-choice test tank (Y-maze) was monitored using a passive integrated transponder (PIT)-tag system in response to river-specific dissolved free amino-acid (DFAA) profiles and revealed that the majority of O. keta showed a preference for artificial natal-stream water and tended to stay in this maze arm for a longer period; natal-stream water was chosen over a nearby tributary's water, but not when the O. keta were presented with a non-tributary water. The results demonstrate the ability of O. keta to discriminate artificial stream waters containing natural levels of DFAA.
Collapse
Affiliation(s)
- E Y Chen
- Division of Biosphere Science, Graduate School of Environmental Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - J B K Leonard
- Biology Department, Northern Michigan University, Marquette, MI, 49855, U.S.A
| | - H Ueda
- Division of Biosphere Science, Graduate School of Environmental Science, Hokkaido University, Sapporo, 060-0810, Japan
- Laboratory of Aquatic Bioresources and Ecosystems, Field Science Center for the Northern Biosphere, Hokkaido University, Sapporo, 060-0809, Japan
| |
Collapse
|
34
|
Koh Y, Yagi S, Akamatsu H, Tanaka A, Kanai K, Hayata A, Tokudome N, Akamatsu K, Higuchi M, Kanbara H, Ueda H, Nakanishi M, Yamamoto N. Comparison of PD-L1 expression between tumor tissues and circulating tumor cells in patients with lung cancer. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)32629-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
35
|
Goto T, Sugiura T, Awaya R, Ueda H, Mizutani E, Ito K, Nagasaki R, Kato T, Saitoh S. Survival of fetuses with severe oligohydramnios. CLIN EXP OBSTET GYN 2016. [DOI: 10.12891/ceog2068.2016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
|
36
|
Matsuura T, Takao S, Matsuzaki Y, Fujii Y, Fujii T, Maeda K, Ueda H, Koyano H, Umegaki K, Shirato H. SU-F-T-131: No Increase in Biological Effectiveness Through Collimator Scattered Low Energy Protons. Med Phys 2016. [DOI: 10.1118/1.4956267] [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: 11/07/2022] Open
|
37
|
Takegawa N, Hayashi H, Iizuka N, Takahama T, Ueda H, Tanaka K, Takeda M, Nakagawa K. Transformation of ALK rearrangement-positive adenocarcinoma to small-cell lung cancer in association with acquired resistance to alectinib. Ann Oncol 2016; 27:953-5. [DOI: 10.1093/annonc/mdw032] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
38
|
Ueda H, Halder SK, Matsunaga H, Sasaki K, Maeda S. Neuroprotective impact of prothymosin alpha-derived hexapeptide against retinal ischemia-reperfusion. Neuroscience 2016; 318:206-18. [PMID: 26779836 DOI: 10.1016/j.neuroscience.2016.01.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [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: 07/29/2015] [Revised: 12/17/2015] [Accepted: 01/05/2016] [Indexed: 01/13/2023]
Abstract
Prothymosin alpha (ProTα) has robustness roles against brain and retinal ischemia or serum-starvation stress. In the ProTα sequence, the active core 30-amino acid peptide/P30 (a.a.49-78) is necessary for the original neuroprotective actions against ischemia. Moreover, the 9-amino acid peptide sequence/P9 (a.a.52-60) in P30 still shows neuroprotective activity against brain and retinal ischemia, though P9 is less potent than P30. As the previous structure-activity relationship study for ProTα may not be enough, the possibility still exists that any sequence smaller than P9 retains potent neuroprotective activity. When different P9- and P30-related peptides were intravitreally injected 24h after retinal ischemia in mice, the 6-amino acid peptide/P6 (NEVDEE, a.a.51-56) showed potent protective effects against ischemia-induced retinal functional deficits, which are equipotent to the level of P30 peptide in electroretinography (ERG) and histological damage in Hematoxylin and Eosin (HE) staining. Further studies using ERG and HE staining suggested that intravitreal or intravenous (i.v.) injection with modified P6 peptide/P6Q (NEVDQE) potently inhibited retinal ischemia-induced functional and histological damage. In an immunohistochemical analysis, the ischemia-induced loss of retinal ganglion, bipolar, amacrine and photoreceptor cells were inhibited by a systemic administration with P6Q peptide 24h after the ischemic stress. In addition, systemic post-treatment with P6Q peptide significantly inhibited retinal ischemia-induced microglia and astrocyte activation in terms of increased ionized calcium-binding adaptor molecule 1 (Iba-1) and glial fibrillary acidic protein (GFAP) intensity, respectively, as well as their morphological changes, increased number and migration. Thus, this study demonstrates the therapeutic significance of modified P6 peptide P6Q (NEVDQE) derived from 6-amino acid peptide (P6) in ProTα against ischemic damage.
Collapse
Affiliation(s)
- H Ueda
- Department of Pharmacology and Therapeutic Innovation, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8521, Japan.
| | - S K Halder
- Department of Pharmacology and Therapeutic Innovation, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8521, Japan
| | - H Matsunaga
- Department of Pharmacology and Therapeutic Innovation, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8521, Japan
| | - K Sasaki
- Department of Pharmacology and Therapeutic Innovation, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8521, Japan
| | - S Maeda
- Department of Pharmacology and Therapeutic Innovation, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8521, Japan
| |
Collapse
|
39
|
Goto T, Sugiura T, Awaya R, Ueda H, Mizutani E, Ito K, Nagasaki R, Kato T, Saitoh S. Survival of fetuses with severe oligohydramnios. CLIN EXP OBSTET GYN 2016; 43:341-344. [PMID: 27328487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE The aim of the present study was to identify predictive data on the short-term outcomes of fetuses with oligohydramnios. MATERIALS AND METHODS A retrospective study of all pregnancies diagnosed with oligohydramnios was performed. RESULTS A total of 17 fetuses (seven males, seven females, and three unknown) with oligohydramnios were treated from 2004 to 2011. Oligohydramnios was first diagnosed at a 21.6 ± 4.2 weeks gestation. Terminations of pregnancy before 22 weeks were identified in five cases, and intrauterine fetal deaths occurred in two cases. Ten neonates were born alive, five cases survived over 28 days, and five cases died within 48 hours. Prognostic factors for survival included birth weight (2,457 ± 480 grams in survivors vs. 1973 ± 124 grams in non-survivors; p < 0.05) and the mean amniotic fluid index (AFI) (2.32 ± 1.19 cm in survivors vs. 0.46 ± 0.68 cm in non-survivors;p < 0.05). CONCLUSION All patients who survived had a mean AFI > 1.0 cm.
Collapse
|
40
|
Akamatsu H, Koh Y, Shibaki R, Tabata K, Kogure M, Tanaka A, Oka A, Kanai K, Kikuchi T, Hayata A, Akamatsu K, Ueda H, Nakanishi M, Yamamoto N. 487P Establishment of novel multiplexed assay to detect EGFR mutations using ultra-sensitive digital PCR. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv533.06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
41
|
Ueda H, Tanaka H, Sakurai Y. Reprint of The improvement of the energy resolution in epi-thermal neutron region of Bonner sphere using boric acid water solution moderator. Appl Radiat Isot 2015; 106:107-10. [PMID: 26508275 DOI: 10.1016/j.apradiso.2015.10.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Revised: 05/10/2015] [Accepted: 06/15/2015] [Indexed: 10/22/2022]
Abstract
Bonner sphere is useful to evaluate the neutron spectrum in detail. We are improving the energy resolution in epi-thermal neutron region of Bonner sphere, using boric acid water solution as a moderator. Its response function peak is narrower than that for polyethylene moderator and the improvement of the resolution is expected. The resolutions between polyethylene moderator and boric acid water solution moderator were compared by simulation calculation. Also the influence in the uncertainty of Bonner sphere configuration to spectrum estimation was simulated.
Collapse
Affiliation(s)
- H Ueda
- Graduate School of Engineering, Kyoto University, Kyoto daigaku-Katsura, Nishikyo-ku, Kyoto 615-8530, Japan
| | - H Tanaka
- Research Reactor Institute, Kyoto University, Asashiro-nishi 2-1010, Kumatori-cho, Sennan-gun, Osaka 590-0494, Japan
| | - Y Sakurai
- Research Reactor Institute, Kyoto University, Asashiro-nishi 2-1010, Kumatori-cho, Sennan-gun, Osaka 590-0494, Japan.
| |
Collapse
|
42
|
Omotuyi O, Ueda H. Energetics and protomer communication in the dynamical structure of S100A13 in free and protein-bound states. Molecular Simulation 2015. [DOI: 10.1080/08927022.2015.1091936] [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] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Oi Omotuyi
- Department of Pharmacology and Therapeutic Innovation, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
- Center for Drug Discovery and Therapeutic Innovation, Nagasaki University, Nagasaki, Japan
| | - H Ueda
- Department of Pharmacology and Therapeutic Innovation, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
- Center for Drug Discovery and Therapeutic Innovation, Nagasaki University, Nagasaki, Japan
| |
Collapse
|
43
|
Ueda H, Tanaka H, Sakurai Y. The improvement of the energy resolution in epi-thermal neutron region of Bonner sphere using boric acid water solution moderator. Appl Radiat Isot 2015; 104:25-8. [DOI: 10.1016/j.apradiso.2015.06.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Revised: 05/10/2015] [Accepted: 06/15/2015] [Indexed: 11/30/2022]
|
44
|
Furuishi T, Ishigami T, Endo T, Nagase H, Okada M, Nishiyama I, Jo A, Terao K, Ueda H. Effect of γ-cyclodextrin as a lyoprotectant for freeze-dried actinidin. Pharmazie 2015; 70:296-299. [PMID: 26062296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Actinidin (ATD) is a cysteine protease found in kiwifruit. It is used to tenderize meat and to enhance the digestion of proteins in the small intestine. However, ATD is unstable during freeze-drying, which alters its bioactivity. It is well known that sugars have the ability to protect proteins from the stress of freeze-drying. In this study, we investigated the protective effect of various saccharides on the stability of ATD during freeze-drying. The ATD activities of the samples containing γ-cyclodextrin (CyD) showed only a small decrease, and compared with trehalose and sucrose, γ-CyD was a more effective stabilizer for ATD. Secondary structural changes in freeze-dried ATD were observed by circular dichroism spectroscopy and compared with the changes in stabilized samples. There was a close relationship between the α-helix content and the stabilization. The sugars stabilized the protein by suppressing the changes in the α-helix. Fourier transform infrared spectroscopy measurement showed that the amide I band of ATD with γ-CyD was shifted to a lower wavenumber compared with other sugars. Therefore, stronger hydrogen bonds may be formed between ATD and γ-CyD than between ATD and other sugars. The suppression of changes in the protein secondary structure accompanying the formation of hydrogen bonding between the protein and the sugar also contributed to the protective effect of the sugars.
Collapse
|
45
|
Ohsima M, Waseda R, Tanaka N, Ueda H, Ooi A, Matsumoto I. A new fluorescent anatomic pulmonary segmentectomy using PDD endoscope system and vitamin B2: evaluation in a clinical setting using living animal. Surg Endosc 2015; 30:339-45. [PMID: 25894445 DOI: 10.1007/s00464-015-4194-x] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2014] [Accepted: 03/25/2015] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Identification of intersegmental planes is essential for successful anatomic pulmonary segmentectomy. We have previously reported a new fluorescence technique using a PDD endoscope system™ and vitamin B2 for identification of intersegmental planes in ex vivo experiments. In the present study, we investigated and evolved this technique to perform ideal anatomic segmentectomy in a clinical setting using living pig models. METHODS Cranial segmentectomy in the cranial lobe of the right lung was performed in six pigs using our fluorescence technique. The fluorescent cranial segmentectomy was as follows. After identification of the cranial segmental bronchus, vitamin B2 solution as a fluorescent substance was injected via bronchoscopy. The fluorescent segment was observed using a PDD endoscope system, and the identified intersegmental plane was cut using electric cautery. The operative data collected were the rates of accurate identification of the pulmonary segment and perioperative complications. The duration and light intensity of fluorescence of the target segment were recorded to provide an objective measurement of success. RESULTS In all procedures, it was possible to identify the target segment by its clear yellow-green fluorescence. The rate of accurate identification of the pulmonary segment was 100%. The fluorescence continued for more than 1 h with adequate light intensity. No perioperative complications were encountered. No unexpected injuries of the major segmental bronchi or vessels occurred. Hemorrhage and air leakage from the transected intersegmental plane were negligible. CONCLUSIONS Our new fluorescence technique in a clinical setting involving a PDD endoscope system™ vitamin B2 enabled accurate and safe anatomic pulmonary segmentectomy, with enough strong and long fluorescence in living pig lungs.
Collapse
Affiliation(s)
- Masahiro Ohsima
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, Kanazawa, Japan
| | - Ryuichi Waseda
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, Kanazawa, Japan.
| | - Nobuhiro Tanaka
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, Kanazawa, Japan
| | - Hideyasu Ueda
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, Kanazawa, Japan
| | - Akishi Ooi
- Department of Human Pathology, Kanazawa University, 13-1 Takaramachi, Kanazawa, Ishikawa, Japan
| | - Isao Matsumoto
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, Kanazawa, Japan
| |
Collapse
|
46
|
Ueda H, Sugiura T, Katano K, Matsuhashi M, Kato S, Ito K, Nagasaki R, Kato T, Tsuno NH, Saitoh S. Perinatal management of neonatal alloimmune thrombocytopenia associated with anti-group A antibody. Transfus Med 2015; 25:42-6. [DOI: 10.1111/tme.12178] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Accepted: 02/09/2015] [Indexed: 11/30/2022]
Affiliation(s)
- H. Ueda
- Department of Pediatrics and Neonatology; Nagoya Japan
| | - T. Sugiura
- Department of Pediatrics and Neonatology; Nagoya Japan
| | - K. Katano
- Department of Obstetrics and Gynecology; Graduate School of Medical Sciences Nagoya City University; Nagoya Japan
| | - M. Matsuhashi
- Department of Transfusion Medicine; The University of Tokyo; Tokyo Japan
| | - S. Kato
- Department of Pediatrics and Neonatology; Nagoya Japan
| | - K. Ito
- Department of Pediatrics and Neonatology; Nagoya Japan
| | - R. Nagasaki
- Department of Pediatrics and Neonatology; Nagoya Japan
| | - T. Kato
- Department of Pediatrics and Neonatology; Nagoya Japan
| | - N. H. Tsuno
- Department of Transfusion Medicine; The University of Tokyo; Tokyo Japan
| | - S. Saitoh
- Department of Pediatrics and Neonatology; Nagoya Japan
| |
Collapse
|
47
|
|
48
|
Tomiyasu K, Iwasa K, Ueda H, Niitaka S, Takagi H, Ohira-Kawamura S, Kikuchi T, Inamura Y, Nakajima K, Yamada K. Spin-orbit fluctuations in frustrated heavy-fermion metal LiV(2)O(4). Phys Rev Lett 2014; 113:236402. [PMID: 25526141 DOI: 10.1103/physrevlett.113.236402] [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] [Received: 05/26/2014] [Indexed: 06/04/2023]
Abstract
Spin fluctuations were studied over a wide momentum (ℏQ) and energy (E) space in the frustrated d-electron heavy-fermion metal LiV_{2}O_{4} by time-of-flight inelastic neutron scattering. We observed the overall Q-E evolutions near the characteristic Q=0.6 Å^{-1} peak and found another weak broad magnetic peak around 2.4 Å^{-1}. The data are described by a simple response function, a partially delocalized magnetic form factor, and antiferromagnetic short-range spatial correlations, indicating that heavy-fermion formation is attributable to spin-orbit fluctuations with orbital hybridization.
Collapse
Affiliation(s)
- K Tomiyasu
- Department of Physics, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - K Iwasa
- Department of Physics, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - H Ueda
- Department of Chemistry, Kyoto University, Kyoto 606-8502, Japan
| | - S Niitaka
- RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Takagi
- Department of Physics, University of Tokyo, Hongo 113-0033, Japan
| | - S Ohira-Kawamura
- J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1106, Japan
| | - T Kikuchi
- J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1106, Japan
| | - Y Inamura
- J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1106, Japan
| | - K Nakajima
- J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1106, Japan
| | - K Yamada
- Institute of Materials Structure Science, High Energy Accelerator Research Organization, Oho, Tsukuba 305-0801, Japan
| |
Collapse
|
49
|
Affiliation(s)
- M Yamazaki
- Department of Medicinal Chemistry, Faculty of Pharmaceutical Sciences, Teikyo University, Kanagawa, Japan
| | | | | |
Collapse
|
50
|
Yamazaki M, Ueda H, Fukuda K, Okamoto M, Yui S. Priming Effects of Vegetable Juice on Endogenous Production of Tumor Necrosis Factor. Biosci Biotechnol Biochem 2014; 56:149. [PMID: 1368128 DOI: 10.1271/bbb.56.149] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- M Yamazaki
- Department of Medicinal Chemistry, Faculty of Pharmaceutical Sciences, Teikyo University, Kanagawa, Japan
| | | | | | | | | |
Collapse
|