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Okabe M, Tsuboi N, Ueda H, Hishida E, Miyazaki Y, Yokoo T. A 20-year follow-up study of identical twin sisters with immunoglobulin A nephropathy. Clin Kidney J 2024; 17:sfae073. [PMID: 38633839 PMCID: PMC11022648 DOI: 10.1093/ckj/sfae073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Indexed: 04/19/2024] Open
Abstract
Immunoglobulin A nephropathy (IgAN) is characterized by diverse clinicopathological phenotypes. Herein we present a follow-up study of previously reported identical twin sisters with IgAN. The older sister exhibited more severe kidney histopathology and proteinuria and a lower birthweight than did her younger sister, and only the older sister experienced two childbirths. These raised concerns regarding her kidney outcomes. However, with timely multidisciplinary treatments, the older sister's kidney function remained preserved after 20 years of IgAN history. Our findings indicate the significant contribution of environmental/epigenetic factors to IgAN progression and the need for tailored medical care corresponding to life events.
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Affiliation(s)
- Masahiro Okabe
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine Daisan Hospital, Tokyo, Japan
| | - Nobuo Tsuboi
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Hiroyuki Ueda
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Erika Hishida
- Division of Nephrology, Department of Internal Medicine, Jichi Medical University, Shimotsuke, Japan
| | - Yoichi Miyazaki
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine Daisan Hospital, Tokyo, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
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Yamashita H, Okabe M, Ueda H, Miyazaki Y, Yokoo T. Recurrence of crescentic IgA nephropathy 3 years after successful treatment. Clin Nephrol 2024; 101:199-202. [PMID: 38294220 DOI: 10.5414/cn111224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/06/2024] [Indexed: 02/01/2024] Open
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Sogabe M, Okahisa T, Kagawa M, Sei M, Ueda H, Yokoyama R, Kagemoto K, Tanaka H, Kida Y, Nakamura F, Tomonari T, Okamoto K, Kawano Y, Miyamoto H, Sato Y, Nakasono M, Takayama T. Association of metabolic dysfunction-associated steatotic liver disease with erosive esophagitis development: a longitudinal observational study. J Gastroenterol Hepatol 2024. [PMID: 38419514 DOI: 10.1111/jgh.16530] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/19/2024] [Accepted: 02/08/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND AND AIM Although erosive esophagitis (EE) is associated with fatty liver and metabolic dysregulation, the association between EE and metabolic dysfunction-associated steatotic liver disease (MASLD) remains unclear. Thus, this study aimed to investigate the longitudinal association between MASLD and EE. METHODS We included 1578 patients without EE at baseline who underwent more than two health checkups over 2 years. Generalized estimation equations were used to analyze associations between MASLD and EE according to repeated measures at baseline and most recent stages. RESULTS EE development rates in men and women were 14.5% and 7.2%, respectively. After adjusting for lifestyle habits, the odds ratios of MASLD for EE development in men and women were 1.907 (95% confidence interval [CI]: 1.289-2.832, P < 0.005) and 1.483 (95% CI: 0.783-2.811, P = 0.227), respectively. In the subgroup analysis, after adjusting for lifestyle habits, among men and women aged ≥50 years with more than three MASLD components, the odds ratios for EE development were 2.408 (95% CI: 1.505-3.855, P < 0.001) and 2.148 (95% CI: 1.093-4.221, P < 0.05), respectively. After adjusting for various factors, the significant risk factors for EE development were different between men and women. CONCLUSION The influence of MASLD and other factors on EE development differed by sex and age. Particularly, patients aged ≥50 years with MASLD and with an increased number of MASLD components should be considered at increased risk for EE.
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Affiliation(s)
- Masahiro Sogabe
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
- Department of Internal Medicine, Shikoku Central Hospital of the Mutual Aid Association of Public School Teachers, Shikokuchuo, Japan
| | - Toshiya Okahisa
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
- Department of Internal Medicine, Shikoku Central Hospital of the Mutual Aid Association of Public School Teachers, Shikokuchuo, Japan
| | - Miwako Kagawa
- Department of Internal Medicine, Shikoku Central Hospital of the Mutual Aid Association of Public School Teachers, Shikokuchuo, Japan
| | - Motoko Sei
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Hiroyuki Ueda
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
- Department of Internal Medicine, Shikoku Central Hospital of the Mutual Aid Association of Public School Teachers, Shikokuchuo, Japan
| | - Reiko Yokoyama
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Kaizo Kagemoto
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Hironori Tanaka
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Yoshifumi Kida
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Fumika Nakamura
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Tetsu Tomonari
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Koichi Okamoto
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Yutaka Kawano
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Hiroshi Miyamoto
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Yasushi Sato
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Masahiko Nakasono
- Department of Internal Medicine, Tsurugi Municipal Handa Hospital, Tsurugi, Japan
| | - Tetsuji Takayama
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
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Shimizu A, Tsuboi N, Haruhara K, Shirai I, Ogawa K, Miura A, Oshiro K, Ueda H, Yokote S, Okabe M, Sasaki T, Ikeda M, Yokoo T. Active flare of IgA nephropathy during long-term therapy with anti-tumor necrosis factor-α antibody drugs for Crohn's disease: three case reports and literature review. CEN Case Rep 2023:10.1007/s13730-023-00836-0. [PMID: 38032436 DOI: 10.1007/s13730-023-00836-0] [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: 07/25/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023] Open
Abstract
In recent years, increasing numbers of reports have described new onset or active disease flare of IgA nephropathy (IgAN) during administration of TNF-α inhibitor (TNFi) therapy for chronic inflammatory diseases. Crohn's disease (CD) is the most common indication for TNFi therapy in this clinical setting, but the underlying etiology of IgAN in such patients remains unclear. We report our experience with three patients who developed acute worsening of preexisting urinalysis abnormalities and kidney dysfunction approximately 2 to 6 years after TNFi administration for CD. Kidney biopsies at the time of kidney disease flare revealed IgAN in two patients and IgAN complicated by acute tubulointerstitial nephritis in one patient. The CD and IgAN in all three patients were successfully managed with additional corticosteroid therapy and tonsillectomy without discontinuing TNFi therapy. The clinical course of our patients and similar patients described in the literature suggests that TNFi therapy for CD is associated with a relatively high risk for new onset or disease flare of IgAN. This report discusses the possible involvement of Th1/Th2 imbalance on the immunological background of CD or IgAN.
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Affiliation(s)
- Akihiro Shimizu
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1, Kashiwashita, Kashiwa-shi, Chiba, 277-8567, Japan.
| | - Nobuo Tsuboi
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Kotaro Haruhara
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1, Kashiwashita, Kashiwa-shi, Chiba, 277-8567, Japan
| | - Izumi Shirai
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1, Kashiwashita, Kashiwa-shi, Chiba, 277-8567, Japan
| | - Kyohei Ogawa
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1, Kashiwashita, Kashiwa-shi, Chiba, 277-8567, Japan
| | - Akane Miura
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1, Kashiwashita, Kashiwa-shi, Chiba, 277-8567, Japan
| | - Kentaro Oshiro
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1, Kashiwashita, Kashiwa-shi, Chiba, 277-8567, Japan
| | - Hiroyuki Ueda
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Shinya Yokote
- Division of Nephrology, Kawaguchi Municipal Medical Center, Kawaguchi, Japan
| | - Masahiro Okabe
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Daisan Hospital, Tokyo, Japan
| | - Takaya Sasaki
- Division of Nephrology, Kawaguchi Municipal Medical Center, Kawaguchi, Japan
| | - Masato Ikeda
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1, Kashiwashita, Kashiwa-shi, Chiba, 277-8567, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
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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.
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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
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Miyazaki R, Ueda H, Okabe M, Shimizu A, Joh K, Tsuboi N, Yokoo T. Neural epidermal growth factor-like 1 protein (NELL1)-associated membranous nephropathy with heterogeneous underlying diseases: a case report. CEN Case Rep 2023:10.1007/s13730-023-00826-2. [PMID: 37897629 DOI: 10.1007/s13730-023-00826-2] [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: 07/13/2023] [Accepted: 09/27/2023] [Indexed: 10/30/2023] Open
Abstract
Neural epidermal growth factor-like 1 protein (NELL1) is a target antigen of membranous nephropathy (MN). NELL1-associated MN (NELL1-MN) was originally described as a primary form but has subsequently been associated with other diseases, including malignancies, pre-exposure to certain drugs, hepatitis B virus (HBV) and hepatitis C virus (HCV) infections, and rheumatoid arthritis (RA). We present a case of a 78-year-old woman with long-standing RA who developed persistent proteinuria and was diagnosed with MN. Evaluation of the underlying cause revealed chronic active HCV infection and past HBV infection. The underlying cause was less likely to be drug-related; however, there was no evidence of malignancy. The patient was diagnosed with HCV-associated MN. At 4 years after the diagnosis of MN, the patient died of breast cancer with multiple metastases. Subsequent immunohistological analysis revealed that she had NELL1-MN, and her breast cancer tissue stained positive for NELL1. Our case illustrates the difficulty in establishing the underlying cause of NELL1-MN, even after diagnosis. However, the incidence of malignancies, particularly breast and prostate cancers, is higher in NELL1-MN than in MN with other target antigens. Therefore, malignancies are considered a priority for investigation because of their frequency and prognosis among patients with NELL1-MN.
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Affiliation(s)
- Reina Miyazaki
- Division of Nephrology and Hypertension, The Jikei University School of Medicine, 3-19-18 Nishi-Shinbashi, Minato-Ku, Tokyo, 105-8471, Japan
| | - Hiroyuki Ueda
- Division of Nephrology and Hypertension, The Jikei University School of Medicine, 3-19-18 Nishi-Shinbashi, Minato-Ku, Tokyo, 105-8471, Japan.
| | - Masahiro Okabe
- Division of Nephrology and Hypertension, The Jikei University School of Medicine, 3-19-18 Nishi-Shinbashi, Minato-Ku, Tokyo, 105-8471, Japan
| | - Akihiro Shimizu
- Division of Nephrology and Hypertension, The Jikei University School of Medicine, 3-19-18 Nishi-Shinbashi, Minato-Ku, Tokyo, 105-8471, Japan
| | - Kensuke Joh
- Department of Pathology, The Jikei University School of Medicine, Tokyo, Japan
| | - Nobuo Tsuboi
- Division of Nephrology and Hypertension, The Jikei University School of Medicine, 3-19-18 Nishi-Shinbashi, Minato-Ku, Tokyo, 105-8471, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, The Jikei University School of Medicine, 3-19-18 Nishi-Shinbashi, Minato-Ku, Tokyo, 105-8471, Japan
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Ueda H. Response to Letter to the Editor entitled "Adding Cases to the Study of Bucillamine-Associated Neural Epidermal Growth Factor Like1-Positive Membranous Nephropathy". Kidney Int Rep 2023; 8:1699. [PMID: 37547525 PMCID: PMC10403659 DOI: 10.1016/j.ekir.2023.06.002] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 06/05/2023] [Indexed: 08/08/2023] Open
Affiliation(s)
- Hiroyuki Ueda
- Division of Nephrology and Hypertension, The Jikei University School of Medicine, Nishi-shinbashi, Minato-ku, Tokyo, Japan
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Yokote S, Tsuboi N, Shimizu A, Okabe M, Haruhara K, Sasaki T, Ueda H, Yokoo T. Predictors of Gross Hematuria After SARS-CoV-2 mRNA Vaccination in Patients with IgA Nephropathy. Kidney360 2023; 4:943-950. [PMID: 37291717 PMCID: PMC10371300 DOI: 10.34067/kid.0000000000000192] [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: 03/06/2023] [Accepted: 06/02/2023] [Indexed: 06/10/2023]
Abstract
Key Points Little is known about the clinical characteristics of patients with immunoglobulin A nephropathy (IgAN) who present with gross hematuria in relation to SARS-CoV-2 mRNA vaccination. The relationship between the clinical features in patients with IgAN at the time of SARS-CoV-2 mRNA vaccination and the subsequent appearance of gross hematuria was investigated. This study demonstrates the clinical significance of microscopic hematuria in patients with IgAN as a predictor of gross hematuria after SARS-CoV-2 mRNA vaccination. Background There have been several reports of immunoglobulin A nephropathy (IgAN) patients with gross hematuria and acute deterioration of urinary findings and kidney function after severe acute respiratory syndrome coronavirus 2 mRNA vaccination. Recent case series studies have indicated a possible link between the status of urinary findings at the time of vaccination and the subsequent appearance of gross hematuria. In this study, we aimed to determine whether the status of prevaccination urinary findings was associated with postvaccination gross hematuria in patients already diagnosed with IgAN. Methods Outpatients with IgAN who had been followed up before vaccination were included. We analyzed the association between the remission of prevaccination microscopic hematuria (urine sediment <5 red blood cells/high-power field) or proteinuria (<0.3 g/gCr) and postvaccination gross hematuria. Results A total of 417 Japanese patients with IgAN (median age, 51 years; 56% female; eGFR, 58 ml/min per 1.73 m2) were included. The frequency of gross hematuria after vaccination was higher in 20 of 123 patients (16.3%) with microscopic hematuria than in 5 of 294 patients (1.7%) without microscopic hematuria before vaccination (P < 0.001). There was no association between prevaccination proteinuria and postvaccination gross hematuria. After adjusting for potential confounders, such as sex (female), age (younger than 50 years), eGFR (≥60 ml/min per 1.73 m2), and histories of tonsillectomy and corticosteroid therapy, prevaccination microscopic hematuria was still associated with postvaccination gross hematuria (odds ratio, 8.98; P < 0.001). As the severity of prevaccination microscopic hematuria increased, the incidence of postvaccination gross hematuria increased (P < 0.001). Conclusions Prevaccination microscopic hematuria in patients with IgAN is a major predictor of postvaccination gross hematuria, regardless of potential confounders, including previous treatments of IgAN.
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Affiliation(s)
- Shinya Yokote
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Katsushika Medical Center, Tokyo, Japan
| | - Nobuo Tsuboi
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Akihiro Shimizu
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Kashiwa Hospital, Chiba, Japan
| | - Masahiro Okabe
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Daisan Hospital, Tokyo, Japan
| | - Kotaro Haruhara
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Kashiwa Hospital, Chiba, Japan
| | - Takaya Sasaki
- Division of Nephrology, Kawaguchi Municipal Medical Center, Kawaguchi, Japan
| | - Hiroyuki Ueda
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
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Hayashi A, Kawabe M, Yamamoto I, Ohki Y, Kobayashi A, Ueda H, Tanno Y, Urabe F, Miki J, Yamada H, Kimura T, Okido I, Tsuboi N, Yamamoto H, Yokoo T. Clinical and Pathological Significance of Mesangial C1q Deposition in Kidney Transplant Recipients with Recurrent IgA Nephropathy and Patients with Native IgA Nephropathy. Nephron Clin Pract 2023; 147 Suppl 1:80-88. [PMID: 37339606 DOI: 10.1159/000530916] [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: 12/14/2022] [Accepted: 03/22/2023] [Indexed: 06/22/2023] Open
Abstract
INTRODUCTION In kidney transplant recipients (KTRs) whose primary disease is IgA nephropathy (IgAN), IgAN recurrence occurs in approximately half of patients by 5 years postoperatively and is associated with graft survival. Although the alternative and lectin pathways are important in the primary pathogenesis of IgAN, the significance of mesangial C1q deposition, which triggers the classical pathway, is unknown. We investigated the clinicopathological significance of mesangial C1q deposition in both recurrent IgAN in KTRs and native IgAN. METHODS Between 2000 and 2021, we conducted a 1:2 matched case-control study of 18 KTRs diagnosed with recurrent IgAN, with a group of native IgAN patients as the control. We evaluated the rate and presence/absence of mesangial C1q deposition in terms of pathological findings and kidney outcomes in each group. RESULTS The rate of mesangial C1q deposition was significantly higher in the recurrent IgAN patients in KTRs than in native IgAN patients (11/18 [61.1%] vs. 5/36 [13.9%], p = 0.001). In the former group, the incidence of glomerular crescents was relatively higher in C1q-positive patients. There was no significant difference in the annual rate of estimated glomerular filtration rate decline between C1q-positive and C1q-negative patients in either group. CONCLUSION Mesangial C1q deposition was more frequent in KTRs with recurrent IgAN than in patients with native IgAN, but we found no difference in kidney outcomes with respect to mesangial C1q deposition. Further large-scale investigations of the importance of mesangial C1q deposition are needed in both KTRs with recurrent IgAN and patients with native IgAN.
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Affiliation(s)
- Ayaka Hayashi
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Mayuko Kawabe
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Izumi Yamamoto
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan,
| | - Yutaro Ohki
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Akimitsu Kobayashi
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Hiroyuki Ueda
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Yudo Tanno
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Fumihiko Urabe
- Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| | - Jun Miki
- Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| | - Hiroki Yamada
- Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| | - Takahiro Kimura
- Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| | - Ichiro Okido
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Nobuo Tsuboi
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Hiroyasu Yamamoto
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
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Ohki Y, Kawabe M, Yamamoto I, Kobayashi A, Kanzaki G, Koike K, Ueda H, Tanno Y, Urabe F, Miki J, Yamada H, Kimura T, Ohkido I, Tsuboi N, Yamamoto H, Yokoo T. Early Recurrence of Immunoglobulin A Nephropathy after Kidney Transplantation in a Patient with Down Syndrome. Nephron Clin Pract 2023; 147 Suppl 1:35-40. [PMID: 37290422 DOI: 10.1159/000530915] [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: 12/09/2022] [Accepted: 04/04/2023] [Indexed: 06/10/2023] Open
Abstract
A 39-year-old male kidney transplant recipient with Down syndrome (DS) was admitted to our hospital for biopsy. He had proteinuria at age 9, was diagnosed with immunoglobulin A nephropathy (IgAN) at age 22, had a tonsillectomy at age 35, and underwent ABO-compatible kidney transplantation (from his mother) at age 36. His serum creatinine was stable at 2.21 mg/dL 3 months after the kidney transplant, and his urine protein was 0.11 g/day. A protocol biopsy was performed 7 months after the kidney transplant, and there was suspicion of early recurrence of IgAN. One year after the transplant, urine erythrocytes were elevated and proteinuria was 0.41 g/day; at 3 years and 5 months after the kidney transplant, hematuria was evident along with proteinuria (0.74 g/day). Therefore, an episode biopsy was performed. A total of 23 glomeruli were obtained, four of which exhibited global sclerosis; three others showed intra- and extracapillary proliferative glomerulonephritis compatible with IgAN recurrence. Here, we report a rare case of early recurrence of IgAN with disease progression despite tonsillectomy in a patient with DS.
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Affiliation(s)
- Yutaro Ohki
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Mayuko Kawabe
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Izumi Yamamoto
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Akimitsu Kobayashi
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Go Kanzaki
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Kentaro Koike
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Hiroyuki Ueda
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Yudo Tanno
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Fumihiko Urabe
- Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| | - Jun Miki
- Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| | - Hiroki Yamada
- Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| | - Takahiro Kimura
- Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| | - Ichiro Ohkido
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Nobuo Tsuboi
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Hiroyasu Yamamoto
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
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11
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Okabayashi Y, Tsuboi N, Marumoto H, Sasaki T, Haruhara K, Kanzaki G, Koike K, Ueda H, Shimizu A, Puelles VG, D'Agati V, Yokoo T. Single-Nephron GFR in Different Glomerular Basement Membrane Stages of Membranous Nephropathy. Kidney360 2023; 4:e777-e786. [PMID: 37166967 PMCID: PMC10371379 DOI: 10.34067/kid.0000000000000142] [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: 11/22/2022] [Accepted: 03/22/2023] [Indexed: 05/12/2023]
Abstract
Key Points The first study that estimated single-nephron GFR (SNGFR) in patients with membranous nephropathy (MN). Associations of SNGFR with MN staging by electron microscopy and clinicopathologic findings were cross-sectionally investigated. This study illustrates a role for disease-specific GBM structural lesions as determinants of SNGFR in patients with MN. Background Alterations in single-nephron dynamics have been demonstrated in animal models of membranous nephropathy (MN). This study applied a recently developed technique to estimate single-nephron parameters in human MN. Methods Single-nephron GFR (SNGFR) and single-nephron urinary protein excretion (SNUPE) were calculated by dividing total GFR and UPE by the total estimated number of nonglobally sclerotic glomeruli (NSG). The NSG number per kidney was estimated using cortical volume assessment and biopsy-based stereology. MN staging by electron microscopy was performed using Ehrenreich-Churg (EC) criteria. Single-nephron parameters were analyzed in relation to clinicopathological factors known to associate with disease outcomes. Results The study included 109 patients with MN (mean age 65 years; 73% male; eGFR 62 ml/min, 36% on renin-angiotensin-aldosterone system inhibitors prebiopsy). EC stages were I, 19%; II, 49%; III, 26%; and IV, 6%. There was no difference in glomerular volume among EC stage groups. With advancing EC stage, SNGFR and SNUPE decreased from mean 56–42 nl/min and 5.1–3.8 µ g/d, respectively. In multivariable models, EC stage was associated with SNGFR even after adjustment for key clinicopathological factors, such as reduced GFR, serum albumin, UPE, segmental glomerulosclerosis, chronic tubulointerstitial damage, and prebiopsy use of renin-angiotensin-aldosterone system inhibitors. By contrast, EC stage was not associated with glomerular volume and SNUPE after multivariable adjustment. Conclusions These results provide the first clinical evidence of alterations in single-nephron dynamics with advancing EC stage of human MN and support a role for disease-specific glomerular basement membrane structural lesions as determinants of SNGFR.
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Affiliation(s)
- Yusuke Okabayashi
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
- Ill. Department of Medicine, University Medical Center Hamburg-Eppendorf, Germany
| | - Nobuo Tsuboi
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Hirokazu Marumoto
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Takaya Sasaki
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Kotaro Haruhara
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Go Kanzaki
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Kentaro Koike
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Hiroyuki Ueda
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Akira Shimizu
- Department of Analytic Human Pathology, Nippon Medical School, Tokyo, Japan
| | - Victor G. Puelles
- Ill. Department of Medicine, University Medical Center Hamburg-Eppendorf, Germany
| | - Vivette D'Agati
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
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12
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Okabe M, Tsuboi N, Haruhara K, Yokote S, Shimizu A, Sasaki T, Ueda H, Yokoo T. Clinical impact of severe acute respiratory syndrome coronavirus-2 infection on IgA nephropathy. Nephrology (Carlton) 2023. [PMID: 37165745 DOI: 10.1111/nep.14171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/07/2023] [Accepted: 04/28/2023] [Indexed: 05/12/2023]
Affiliation(s)
- Masahiro Okabe
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Daisan Hospital, Tokyo, Japan
| | - Nobuo Tsuboi
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Hospital, Tokyo, Japan
| | - Kotaro Haruhara
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Kashiwa Hospital, Kashiwa, Japan
| | - Shinya Yokote
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Katsushika Medical Center, Tokyo, Japan
| | - Akihiro Shimizu
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Kashiwa Hospital, Kashiwa, Japan
| | - Takaya Sasaki
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
- Department of Nephrology, Kawaguchi Municipal Medical Center, Kawaguchi, Japan
| | - Hiroyuki Ueda
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Hospital, Tokyo, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Daisan Hospital, Tokyo, Japan
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Hospital, Tokyo, Japan
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Kashiwa Hospital, Kashiwa, Japan
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Katsushika Medical Center, Tokyo, Japan
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13
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Katsuma A, Okabe M, Ueda H, Ehara T, Yamaguchi Y, Miyazaki Y, Yokoo T. Histiocytic Glomerulopathy With Noncrystalline Inclusion Associated With IgG-Kappa Plasma Cell Dyscrasia. Kidney Med 2023; 5:100617. [PMID: 36942309 PMCID: PMC10024131 DOI: 10.1016/j.xkme.2023.100617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
Abstract
The kidney pathology of monoclonal gammopathy of renal significance varies greatly. In this report, we present a woman in her 20s with nephrotic syndrome and monoclonal immunoglobulin G kappa (serum and urine) without diabetes. She had a family history of nephrotic syndrome as well as hematologic and connective tissue disorders. A kidney biopsy showed nodular glomerulosclerosis, with the glomerular capillary full of histiocytes, which were strongly positive for kappa, not lambda. Immunoelectron microscopy revealed that histiocytes had infiltrated the glomerular subendothelial space, and enlarged lysosomes of histiocytes contained kappa light chains, without apparent crystalline formation. Bone marrow examination was negative for malignancy; thus, we diagnosed this case as histiocytic glomerulopathy with noncrystalline inclusion associated with immunoglobulin G-kappa plasma cell dyscrasia. Hematologic treatment with bortezomib and daratumumab decreased her level of serum kappa chain and proteinuria. Two years after diagnosis, her kidney function remained normal, urinary protein level decreased to 1 g/d, and free light-chain ratio decreased to 3.1.
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Affiliation(s)
- Ai Katsuma
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
- Address for Correspondence: Ai Katsuma, MD, PhD, Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, 3-25-8, Nishi-Shimbashi, Minato-ku, Tokyo, Japan.
| | - Masahiro Okabe
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Hiroyuki Ueda
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Takashi Ehara
- Department of Histopathology, Shinshu University School of Medicine, Matsumoto, Japan
| | | | - Yoichi Miyazaki
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
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14
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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.
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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
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15
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Sogabe M, Okahisa T, Kagawa M, Ueda H, Kagemoto K, Tanaka H, Kida Y, Tomonari T, Taniguchi T, Okamoto K, Miyamoto H, Sato Y, Nakasono M, Takayama T. Influence of Alcohol on Newly Developed Metabolic Dysfunction-Associated Fatty Liver Disease in Both Sexes: A Longitudinal Study. Clin Nutr 2023; 42:810-816. [PMID: 37043935 DOI: 10.1016/j.clnu.2023.03.020] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 03/10/2023] [Accepted: 03/27/2023] [Indexed: 04/03/2023]
Abstract
BACKGROUND & AIMS The influence of changes in alcohol consumption on newly developed metabolic dysfunction-associated fatty liver disease (MAFLD) is unclear. We investigated the influence of alcohol consumption on newly developed MAFLD in both sexes. METHODS This observational cohort study included 4071 patients who underwent more than two health check-ups between 2015 and 2020 over an interval of more than a year. Generalised estimating equations were used for analyses. RESULTS At baseline, the rates of drinking and MAFLD between men and women were 72.5% versus 41.7% and 42.2% versus 22.1%, respectively. At the most recent stage, the rates of an increase in alcohol consumption for men and women were 13.3% and 8.7%, respectively, and 311/1192 (26.1%) men and 155/1566 (9.9%) women had newly developed MAFLD. The odds ratio (OR) for drinking in patients with newly developed MAFLD was 0.863 (men) (95% confidence interval [CI], 0.676-1.102, p = 0.237) and 1.041 (women) (95% CI, 0.753-1.439, p = 0.808); the OR for women who drank 140-279.9 g/week was 2.135 (95% CI, 1.158-3.939, p < 0.05) and that for all drinking categories among women was >1. Several non-invasive fibrosis scores were significantly associated with the quantity of alcohol consumption in patients with newly developed MAFLD (p < 0.005). CONCLUSIONS Alcohol consumption had no significant protective effect against newly developed MAFLD in both sexes, regardless of quantity. Conversely, alcohol consumption ≥140 g/week was a risk factor for newly developed MAFLD in women. The development of liver fibrosis with increased alcohol intake should be considered in patients with MAFLD.
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16
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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
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17
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Oki Y, Katsuma A, Okabe M, Watanabe M, Sagasaki M, Takahashi D, Kimura A, Kato J, Ueda H, Hataya H, Fujimaru T, Mori T, Sohara E, Uchida S, Miyazaki Y, Yokoo T. Different Clinical Courses of Nephronophthisis in Dizygotic Twins. Intern Med 2023; 62:87-90. [PMID: 35676033 PMCID: PMC9876724 DOI: 10.2169/internalmedicine.8707-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Siblings with nephronophthisis occasionally show different clinical courses; however, the reasons for this remain unclear. We herein report cases of nephronophthisis in a pair of dizygotic twins with different clinical courses. The brother developed end-stage kidney disease at 17 years old; however, his sister did not show kidney insufficiency. Kidney biopsies revealed severe tubulointerstitial damage at 14 and 22 years old in the brother and sister, respectively. Both had a homozygous NPHP1 deletion with different heterozygous mutations related to hereditary cystic kidney disease. Since the dizygotic twins were exposed to similar environmental factors, genetic factors may have influenced their clinical course more strongly than environmental factors.
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Affiliation(s)
- Yutaro Oki
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
| | - Ai Katsuma
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
| | - Masahiro Okabe
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
| | - Mao Watanabe
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
| | - Makoto Sagasaki
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
| | - Daisuke Takahashi
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
| | - Ai Kimura
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
| | - Junichiro Kato
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
| | - Hiroyuki Ueda
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
| | - Hiroshi Hataya
- Department of Nephrology and Rheumatology, Tokyo Metropolitan Children's Medical Center, Japan
| | - Takuya Fujimaru
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Japan
| | - Takayasu Mori
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Japan
| | - Eisei Sohara
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Japan
| | - Shinichi Uchida
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Japan
| | - Yoichi Miyazaki
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Japan
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18
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Miyazaki R, Ueda H, Hayashi A, Okabe M, Katsuma A, Shimizu A, Joh K, Tsuboi N, Ikeda M, Miyazaki Y, Yokoo T. Neural Epidermal Growth Factor-Like 1-Positive Membranous Nephropathy with Rheumatoid Arthritis. Kidney Int Rep 2023; 8:921-924. [PMID: 37069980 PMCID: PMC10105036 DOI: 10.1016/j.ekir.2022.12.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/21/2022] [Accepted: 12/28/2022] [Indexed: 01/09/2023] Open
Affiliation(s)
- Reina Miyazaki
- Division of Nephrology and Hypertension, The Jikei University School of Medicine, Tokyo, Japan
| | - Hiroyuki Ueda
- Division of Nephrology and Hypertension, The Jikei University School of Medicine, Tokyo, Japan
- Correspondence: Hiroyuki Ueda, Division of Nephrology and Hypertension, The Jikei University School of Medicine, 3-19-18, Nishi-shinbashi, Minato-ku, Tokyo, 105-8471, Japan.
| | - Ayaka Hayashi
- Division of Nephrology and Hypertension, The Jikei University School of Medicine, Tokyo, Japan
| | - Masahiro Okabe
- Division of Nephrology and Hypertension, The Jikei University School of Medicine, Tokyo, Japan
| | - Ai Katsuma
- Division of Nephrology and Hypertension, The Jikei University School of Medicine, Tokyo, Japan
| | - Akihiro Shimizu
- Division of Nephrology and Hypertension, The Jikei University School of Medicine, Tokyo, Japan
| | - Kensuke Joh
- Department of Pathology, The Jikei University School of Medicine, Tokyo, Japan
| | - Nobuo Tsuboi
- Division of Nephrology and Hypertension, The Jikei University School of Medicine, Tokyo, Japan
| | - Masato Ikeda
- Division of Nephrology and Hypertension, The Jikei University School of Medicine, Tokyo, Japan
| | - Yoichi Miyazaki
- Division of Nephrology and Hypertension, The Jikei University School of Medicine, Tokyo, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, The Jikei University School of Medicine, Tokyo, Japan
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19
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Shimizu A, Shirai I, Ogawa K, Miura A, Haruhara K, Oshiro K, Hamaguchi A, Yokote S, Okabe M, Ueda H, Tsuboi N, Ikeda M, Yokoo T. Persistent SARS-CoV-2 Infection in a Patient with Nephrotic Syndrome under Rituximab Therapy: Successful Treatment with a Combination of Remdesivir and Monoclonal Antibodies. Intern Med 2022; 61:3703-3708. [PMID: 36171121 PMCID: PMC9841105 DOI: 10.2169/internalmedicine.0241-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Rituximab is an effective treatment for frequently relapsing/steroid-dependent nephrotic syndrome, but there is concern about infections caused by humoral immunodeficiency. We herein report a case of prolonged (>7 weeks) severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. A 24-year-old man with minimal change disease treated with rituximab developed SARS-CoV-2 infection. The clinical response to remdesivir was soon transiently abolished. Treatment with casirivimab and imdevimab (REGEN-COV) monoclonal antibodies in combination with remdesivir resulted in complete clearance of the infection. The REGEN-COV antibody cocktail may improve the outcome of SARS-CoV-2 infection in patients with humoral immunodeficiency.
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Affiliation(s)
- Akihiro Shimizu
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Kashiwa Hospital, Japan
| | - Izumi Shirai
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Kashiwa Hospital, Japan
| | - Kyohei Ogawa
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Kashiwa Hospital, Japan
| | - Akane Miura
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Kashiwa Hospital, Japan
| | - Kotaro Haruhara
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Kashiwa Hospital, Japan
| | - Kentaro Oshiro
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Kashiwa Hospital, Japan
| | - Akihiko Hamaguchi
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Kashiwa Hospital, Japan
| | - Shinya Yokote
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Katsushika Medical Center, Japan
| | - Masahiro Okabe
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Daisan Hospital, Japan
| | - Hiroyuki Ueda
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Japan
| | - Nobuo Tsuboi
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Japan
| | - Masato Ikeda
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University Kashiwa Hospital, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Japan
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20
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Suzuki Y, Ogoshi T, Taura Y, Oda S, Uchiyama D, Ueda H, Yatera K. Atypical negative pressure pulmonary edema after extracorporeal membrane oxygenation therapy for COVID-19. Respirol Case Rep 2022; 11:e01071. [PMID: 36514343 PMCID: PMC9730701 DOI: 10.1002/rcr2.1071] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 11/28/2022] [Indexed: 12/13/2022] Open
Abstract
NPPE imaging findings were reported to show a preferential central and nondependent distribution. However, in our case, NPPE showed a peripheral accent pattern, resembling the ARDS pattern of COVID-19 pneumonia 4 months ago. Capillary damage from COVID-19 might still exist.
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Affiliation(s)
- Yu Suzuki
- Department of Respiratory MedicineKokura Memorial HospitalKitakyushu‐shiJapan
| | - Takaaki Ogoshi
- Department of Respiratory MedicineKokura Memorial HospitalKitakyushu‐shiJapan
| | - Yusuke Taura
- Department of Respiratory MedicineKokura Memorial HospitalKitakyushu‐shiJapan
| | - Shiori Oda
- Department of OtorhinolaryngologyKokura Memorial HospitalKitakyushu‐shiJapan
| | - Daiji Uchiyama
- Department of Diagnostic RadiologyKokura Memorial HospitalKitakyushu‐shiJapan
| | - Hiroyuki Ueda
- Department of Diagnostic RadiologyKokura Memorial HospitalKitakyushu‐shiJapan
| | - Kazuhiro Yatera
- Department of Respiratory MedicineUniversity of Occupational and Environmental HealthKitakyushu‐shiJapan
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21
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Matsumoto K, Ueda H, Tsuboi N, Yokoo T. Dapagliflozin and the initial glomerular filtration rate decline in advanced-stage non-diabetic chronic kidney disease. Clin Exp Nephrol 2022; 26:1242-1243. [PMID: 35913494 DOI: 10.1007/s10157-022-02260-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 07/24/2022] [Indexed: 01/20/2023]
Affiliation(s)
- Kei Matsumoto
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-Ku, Tokyo, Japan
| | - Hiroyuki Ueda
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-Ku, Tokyo, Japan
| | - Nobuo Tsuboi
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-Ku, Tokyo, Japan.
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-Ku, Tokyo, Japan
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22
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Ma B, Ueda H, Okamoto K, Bando M, Fujimoto S, Okada Y, Kawaguchi T, Wada H, Miyamoto H, Shimada M, Sato Y, Takayama T. TIMP1 promotes cell proliferation and invasion capability of right-sided colon cancers via the FAK/Akt signaling pathway. Cancer Sci 2022; 113:4244-4257. [PMID: 36073574 DOI: 10.1111/cas.15567] [Citation(s) in RCA: 1] [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] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 08/21/2022] [Accepted: 08/31/2022] [Indexed: 12/15/2022] Open
Abstract
Although right-sided colorectal cancer (CRC) shows a worse prognosis than left-sided CRC, the underlying mechanism remains unclear. We established patient-derived organoids (PDOs) from left- and right-sided CRCs and directly compared cell proliferation and invasion capability between them. We then analyzed the expression of numerous genes in signal transduction pathways to clarify the mechanism of the differential prognosis. Cell proliferation activity and invasion capability in right-sided cancer PDOs were significantly higher than in left-sided cancer PDOs and normal PDOs, as revealed by Cell Titer Glo and transwell assays, respectively. We then used quantitative RT-PCR to compare 184 genes in 30 pathways among right-sided and left-sided cancer and normal PDOs and found that the TIMP1 mRNA level was highest in right-sided PDOs. TIMP1 protein levels were upregulated in right-sided PDOs compared with normal PDOs but was downregulated in left-sided PDOs. TIMP1 knockdown with shRNA significantly decreased cell proliferation activity and invasion capability in right-sided PDOs but not in left-sided PDOs. Moreover, TIMP1 knockdown significantly decreased pFAK and pAkt expression levels in right-sided PDOs but not in left-sided PDOs. A database analysis of The Cancer Genome Atlas revealed that TIMP1 expression in right-sided CRCs was significantly higher than in left-sided CRCs. Kaplan-Meier survival analysis showed significantly shorter overall survival in high-TIMP1 patients versus low-TIMP1 patients with right-sided CRCs but not left-sided CRCs. Our data suggest that TIMP1 is overexpressed in right-sided CRCs and promotes cell proliferation and invasion capability through the TIMP1/FAK/Akt pathway, leading to a poor prognosis. The TIMP1/FAK/Akt pathway can be a target for therapeutic agents in right-sided CRCs.
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Affiliation(s)
- Beibei Ma
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hiroyuki Ueda
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Koichi Okamoto
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Masahiro Bando
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Shota Fujimoto
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yasuyuki Okada
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Tomoyuki Kawaguchi
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hironori Wada
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hiroshi Miyamoto
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Mitsuo Shimada
- Department of Surgery, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yasushi Sato
- Department of Community Medicine for Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Tetsuji Takayama
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
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23
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Suehiro Y, Ueda H, Motohashi S, Honma S, Nobayashi H, Ueda R, Maruyama Y, Horino T, Ogasawara Y, Joh K, Tsuboi N, Yokoo T. Interferon-gamma Release Assay-positive Granulomatous Interstitial Nephritis in a Patient with a History of Diffuse Large B Cell Lymphoma. Intern Med 2022. [PMID: 36351581 DOI: 10.2169/internalmedicine.0648-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Tuberculosis is a common etiology of granulomatous interstitial nephritis (GIN). However, the absence of evidence of lung involvement and lack of mycobacterial isolation in cultures make the etiological diagnosis and treatment decision challenging. We herein report a 46-year-old man with severe renal failure, a persistent fever, and a history of lymphoma. A renal biopsy exhibited GIN. Despite no evidence of tuberculosis except for a positive interferon-gamma release assay (IGRA), the patient was successfully treated with anti-tuberculosis drugs. Our case suggests that anti-tuberculosis therapy should be considered for patients with IGRA-positive GIN after excluding other etiologies.
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Affiliation(s)
- Yohei Suehiro
- Division of Nephrology and Hypertension, the Jikei University School of Medicine, Japan
| | - Hiroyuki Ueda
- Division of Nephrology and Hypertension, the Jikei University School of Medicine, Japan
| | - Saya Motohashi
- Division of Nephrology and Hypertension, the Jikei University School of Medicine, Japan
| | - Shiko Honma
- Department of Pathology, the Jikei University School of Medicine, Japan
| | - Hiroki Nobayashi
- Division of Nephrology and Hypertension, the Jikei University School of Medicine, Japan
| | - Risa Ueda
- Division of Nephrology and Hypertension, the Jikei University School of Medicine, Japan
| | - Yukio Maruyama
- Division of Nephrology and Hypertension, the Jikei University School of Medicine, Japan
| | - Tetsuya Horino
- Department of Infectious Diseases and Infection Control, the Jikei University School of Medicine, Japan
| | - Yoji Ogasawara
- Division of Clinical Oncology/Hematology, Department of Internal Medicine, the Jikei University School of Medicine, Japan
| | - Kensuke Joh
- Department of Pathology, the Jikei University School of Medicine, Japan
| | - Nobuo Tsuboi
- Division of Nephrology and Hypertension, the Jikei University School of Medicine, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, the Jikei University School of Medicine, Japan
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24
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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
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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
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25
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Sogabe M, Okahisa T, Kurihara T, Kagawa M, Ueda H, Kawaguchi T, Fukuya A, Kagemoto K, Tanaka H, Kida Y, Tomonari T, Taniguchi T, Okamoto K, Miyamoto H, Sato Y, Nakasono M, Takayama T. Comparison of the role of alcohol consumption and qualitative abdominal fat on NAFLD and MAFLD in males and females. Sci Rep 2022; 12:16048. [PMID: 36163355 PMCID: PMC9512786 DOI: 10.1038/s41598-022-20124-8] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 09/08/2022] [Indexed: 11/09/2022] Open
Abstract
The clinical difference between nonalcoholic fatty liver disease (NAFLD) and metabolic-associated fatty liver disease (MAFLD) between the two sexes is unclear. This study aimed to determine the influences of alcohol consumption and qualitative abdominal fat between male and female patients with NAFLD and MAFLD. This cross-sectional study examined 11,766 participants who underwent health check-ups comparing lifestyle habits, biochemical features, and noninvasive liver fibrosis scores, between non-MAFLD and MAFLD groups. Furthermore, differences in alcohol consumption and qualitative abdominal fat were examined between male and female patients with NAFLD and MAFLD. The prevalence of metabolic dysregulation, ratio of visceral fat area to subcutaneous fat area, and noninvasive liver fibrosis scores were significantly higher in male patients with MAFLD than in those with NAFLD (p < 0.05), but these were not significantly different in female patients. Among male patients with an alcohol consumption of > 70 g/week, several noninvasive liver fibrosis scores were significantly higher in the MAFLD group than in the NAFLD group (all p < 0.05). The influences of alcohol consumption and qualitative abdominal fat on NAFLD and MAFLD were different between sexes. The development of liver fibrosis should be considered in male patients with MAFLD who exceed mild drinking.
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Affiliation(s)
- Masahiro Sogabe
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan. .,Health Service, Counseling and Accessibility Center, Tokushima University, Tokushima, Japan. .,Department of Internal Medicine, Shikoku Central Hospital of the Mutual Aid Association of Public School Teachers, Shikokuchuo, Japan.
| | - Toshiya Okahisa
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan.,Department of Internal Medicine, Shikoku Central Hospital of the Mutual Aid Association of Public School Teachers, Shikokuchuo, Japan
| | - Takeshi Kurihara
- Department of Internal Medicine, Shikoku Central Hospital of the Mutual Aid Association of Public School Teachers, Shikokuchuo, Japan
| | - Miwako Kagawa
- Department of Internal Medicine, Shikoku Central Hospital of the Mutual Aid Association of Public School Teachers, Shikokuchuo, Japan
| | - Hiroyuki Ueda
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan.,Department of Internal Medicine, Shikoku Central Hospital of the Mutual Aid Association of Public School Teachers, Shikokuchuo, Japan
| | - Tomoyuki Kawaguchi
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan.,Department of Internal Medicine, Shikoku Central Hospital of the Mutual Aid Association of Public School Teachers, Shikokuchuo, Japan
| | - Akira Fukuya
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan.,Department of Internal Medicine, Shikoku Central Hospital of the Mutual Aid Association of Public School Teachers, Shikokuchuo, Japan
| | - Kaizo Kagemoto
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Hironori Tanaka
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Yoshifumi Kida
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Tetsu Tomonari
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Tatsuya Taniguchi
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Koichi Okamoto
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Hiroshi Miyamoto
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Yasushi Sato
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Masahiko Nakasono
- Department of Internal Medicine, Tsurugi Municipal Handa Hospital, Tsurugi, Japan
| | - Tetsuji Takayama
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
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26
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Yokote S, Ueda H, Shimizu A, Okabe M, Yamamoto K, Tsuboi N, Yokoo T. IgA nephropathy with glomerular capillary IgA deposition following SARS-CoV-2 mRNA vaccination: a report of three cases. CEN Case Rep 2022; 11:499-505. [PMID: 35562631 PMCID: PMC9106271 DOI: 10.1007/s13730-022-00707-0] [Citation(s) in RCA: 1] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 04/18/2022] [Indexed: 11/27/2022] Open
Abstract
IgA nephropathy (IgAN) cases histopathologically showing glomerular capillary IgA deposition represent a rare subtype of primary IgAN. Patients with IgAN categorized to this subtype often exhibit heavy proteinuria, advanced histological findings, and are resistant to therapies. Here, we report three cases of biopsy-proven IgAN with glomerular capillary IgA deposition who presented acute deterioration of urinalysis findings following severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) mRNA vaccinations. Case 1 was recurrent IgAN. Case 2 and Case 3 were newly diagnosed cases with subclinical microhematuria and proteinuria history. All three cases showed gross hematuria and acute exacerbations of proteinuria following SARS-CoV-2 mRNA vaccinations. In all three cases, kidney biopsy findings showed IgA deposition in glomerular capillary walls in addition to mesangial and para-mesangial areas; acute glomerular lesions, such as intra- and extracapillary proliferations were identified, indicating the possibility of a potentially severe type of IgAN. Therefore, attention should be paid to patients with de novo or relapsing IgAN showing marked capillary IgA deposition following SARS-CoV-2 vaccination.
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Affiliation(s)
- Shinya Yokote
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Katsushika Medical Center, 6-41-2 Aoto, Katsushika-ku, Tokyo, 125-8506, Japan.
| | - Hiroyuki Ueda
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Akihiro Shimizu
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Kashiwa Hospital, Chiba, Japan
| | - Masahiro Okabe
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University Daisan Hospital, Tokyo, Japan
| | - Kazuyoshi Yamamoto
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Nobuo Tsuboi
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
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27
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Ueda H, Hisatomi T, Yoshimoto S. Appearance of an Electrochemical Oxidative Peak of Gold/Bis(trifluoromethylsulfonyl)amide-based Ionic Liquid Interfaces at Elevated Temperatures. CHEM LETT 2022. [DOI: 10.1246/cl.220016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hiroyuki Ueda
- Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | - Tomohiro Hisatomi
- Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | - Soichiro Yoshimoto
- Institute of Industrial Nanomaterials, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
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28
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Amano T, Asami T, Ichinose-Kuwahara T, Okushima D, Ueda H, Kondo N, Inoue Y. Influence of exercise intensity and regional differences in the sudomotor recruitment pattern in exercising prepubertal boys and young men. Physiol Behav 2022; 243:113642. [PMID: 34762900 DOI: 10.1016/j.physbeh.2021.113642] [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: 09/08/2021] [Revised: 11/05/2021] [Accepted: 11/05/2021] [Indexed: 10/19/2022]
Abstract
We investigated the influence of exercise intensities and regional differences in the sudomotor recruitment pattern in boys. Six prepubertal boys (age 11 ± 1 yr) cycled at light, moderate, and high exercise intensity (35%, 50%, and 65% VO2max) for 30 min in a temperate condition (28 °C, 40% relative humidity). Local sweat rate (ventilated capsule) and number of activated sweat glands (starch-iodine technique) at five body sites were assessed and sweat gland output was calculated. Responses in boys were compared with those in nine young men (23 ± 1 yr) tested under identical conditions. The forehead, chest, back, and forearm, but not thigh, sweat rate increased from light to moderate and at high intensities in boys (all p ≤ 0.005) but not from moderate to high (all p ≥ 0.071). The sweat rate on the forehead was relatively higher (p ≤ 0.045) and thigh was lower (p ≤ 0.050) than other sites in boys at moderate and high intensities. Exercise intensity-dependent sweating was associated with activating more sweat glands but not increasing glandular output in boys. The sweat rate in boys was attenuated versus men heterogeneously across body sites concurrent to low glandular outputs (all p ≤ 0.027). We conclude that exercise intensity modulates the sweat rate in boys by changing the number of activated sweat glands heterogeneously among skin sites. Age-related differences in the sudomotor pattern are evident at higher exercise intensities. Development of glandular output per gland occurring from boys to young men may play a key role in modulating sweat rate with respect to exercise intensity and regional differences.
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Affiliation(s)
- Tatsuro Amano
- Laboratory for Exercise and Environmental Physiology, Faculty of Education, Niigata University, Niigata, Japan
| | - Takako Asami
- Laboratory for Human Performance Research, Osaka International University, Moriguchi, Osaka, Japan
| | - Tomoko Ichinose-Kuwahara
- Laboratory for Human Performance Research, Osaka International University, Moriguchi, Osaka, Japan
| | - Dai Okushima
- Laboratory for Human Performance Research, Osaka International University, Moriguchi, Osaka, Japan
| | - Hiroyuki Ueda
- Department of Nurse, Osaka Shin-ai College, Tsurumi-ku, Osaka, Japan
| | - Narihiko Kondo
- Laboratory for Applied Human Physiology, Graduate School of Human Development and Environment, Kobe University, Kobe, Japan
| | - Yoshimitsu Inoue
- Laboratory for Human Performance Research, Osaka International University, Moriguchi, Osaka, Japan.
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29
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Ueda H, Yoshimoto S. Dataset of the electrochemical potential windows for the Au( hkl)|ionic liquid interfaces defined by the cut-off current densities. Data Brief 2021; 39:107585. [PMID: 34917698 PMCID: PMC8645453 DOI: 10.1016/j.dib.2021.107585] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 11/11/2021] [Accepted: 11/12/2021] [Indexed: 11/22/2022] Open
Abstract
This data article describes the linear sweep voltammetry (LSV) profiles of five ionic liquids (ILs) at the low-index (hkl) (hkl = 111, 100, and 110) planes of Au. The LSV profiles were recorded at 25 ± 1°C for the Au(hkl)|IL interfaces maintained in a hanging meniscus configuration in an inert Ar atmosphere (with H2O and O2 concentrations being lower than 5 ppm). The width of the electrical double-layer regions (E dl) and the electrochemical potential windows (E pw) of the ILs were evaluated based on the cut-off current densities (j cut-off): ±5, ±10, and ±20 µA cm-2 for E dl and ±0.1, ±0.5, and ±1.0 mA cm-2 for E pw. The potential values were calibrated to the redox potential of ferrocene/ferrocenium in each IL. A detailed discussion on the electrochemical behaviors of the ILs on Au(hkl) is provided in the related article "Voltammetric Investigation of Anodic and Cathodic Processes at Au(hkl)|Ionic Liquid Interfaces", published in the Journal of Electroanalytical Chemistry (Ueda and Yoshimoto, 2021).
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Affiliation(s)
- Hiroyuki Ueda
- Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | - Soichiro Yoshimoto
- Institute of Industrial Nanomaterials, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
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30
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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.
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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.
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Kitamura S, Muguruma N, Okamoto K, Kagemoto K, Kida Y, Mitsui Y, Ueda H, Kawaguchi T, Miyamoto H, Sato Y, Aoki R, Shunto J, Bando Y, Takayama T. Clinicopathological characteristics of early gastric cancer associated with autoimmune gastritis. JGH Open 2021; 5:1210-1215. [PMID: 34622010 PMCID: PMC8485395 DOI: 10.1002/jgh3.12656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 08/25/2021] [Accepted: 09/03/2021] [Indexed: 12/24/2022]
Abstract
Background Autoimmune gastritis is known to be associated with neoplastic lesions but the relationship between autoimmunity and tumorigenesis have not been sufficiently clarified. The aim of this study is to assess the clinicopathological characteristics of gastric cancer cases associated with autoimmune gastritis. Methods A total of 24 patients diagnosed as early gastric cancer with autoimmune gastritis were registered. Chart reviews with the data including age, gender, state of Helicobacter pylori infection, comorbidity, and concomitant gastric diseases were conducted. As for the characteristics of gastric cancer, location, size, morphological type, histopathology, invasion depth, and the presence of metachronous or simultaneous lesion were assessed. These data from autoimmune gastritis group were compared with those from 301 patients of early gastric cancer as a control group. Results The gastric cancer associated with autoimmune gastritis was located in the upper, middle, and lower parts in 28.1%, 53.1%, and 18.8%, respectively. The morphological types are as follows: 0‐I, 9.4%; 0‐IIa, 28.1%; 0‐IIb, 15.6%; 0‐IIc, 46.9%; and 0‐III, 0.0%. The mean tumor size was 21.8 mm. While 90.6% were confined to the mucosa, 9.4% showed submucosal invasion. The histological classifications are as follows: tub1, 50.0%; tub2, 15.6%; pap, 21.9%; sig, 9.4%; and por, 3.1%. More numbers of female, protruded types, larger tumor size, papillary tumor, and that in the upper location were observed in autoimmune gastritis group compared to control group. Conclusion Early gastric cancer associated with autoimmune gastritis demonstrated different characteristics from those without autoimmune gastritis including variety of tumor morphologies and histological types with female dominancy.
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Affiliation(s)
- Shinji Kitamura
- Department of Gastroenterology and Oncology Tokushima University Graduate School of Biomedical Sciences Tokushima Japan.,Tokushima Health Screening Center Tokushima Japan.,Shunto Clinic Tokushima Japan.,Division of Pathology Tokushima University Hospital Tokushima Japan
| | - Naoki Muguruma
- Department of Gastroenterology and Oncology Tokushima University Graduate School of Biomedical Sciences Tokushima Japan
| | - Koichi Okamoto
- Department of Gastroenterology and Oncology Tokushima University Graduate School of Biomedical Sciences Tokushima Japan
| | - Kaizo Kagemoto
- Department of Gastroenterology and Oncology Tokushima University Graduate School of Biomedical Sciences Tokushima Japan
| | - Yoshifumi Kida
- Department of Gastroenterology and Oncology Tokushima University Graduate School of Biomedical Sciences Tokushima Japan
| | - Yasuhiro Mitsui
- Department of Gastroenterology and Oncology Tokushima University Graduate School of Biomedical Sciences Tokushima Japan
| | - Hiroyuki Ueda
- Department of Gastroenterology and Oncology Tokushima University Graduate School of Biomedical Sciences Tokushima Japan
| | - Tomoyuki Kawaguchi
- Department of Gastroenterology and Oncology Tokushima University Graduate School of Biomedical Sciences Tokushima Japan
| | - Hiroshi Miyamoto
- Department of Gastroenterology and Oncology Tokushima University Graduate School of Biomedical Sciences Tokushima Japan
| | - Yasushi Sato
- Department of Gastroenterology and Oncology Tokushima University Graduate School of Biomedical Sciences Tokushima Japan
| | - Rika Aoki
- Tokushima Health Screening Center Tokushima Japan
| | | | - Yoshimi Bando
- Division of Pathology Tokushima University Hospital Tokushima Japan
| | - Tetsuji Takayama
- Department of Gastroenterology and Oncology Tokushima University Graduate School of Biomedical Sciences Tokushima Japan
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Kogure M, Nakaya N, Hirata T, Tsuchiya N, Nakamura T, Narita A, Suto Y, Honma Y, Sasaki H, Miyagawa K, Ushida Y, Ueda H, Hozawa A. 809Sodium/potassium ratio change was associated with blood pressure change: finding from health check-up data. Int J Epidemiol 2021. [DOI: 10.1093/ije/dyab168.356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
The sodium (Na)/potassium (K) ratio was reported to be associated with blood pressure (BP). Recently, the Na/K ratio self-monitoring device using spot urine was established. We assessed whether the urinary Na/K ratio change measured using the Na/K device was positively associated with BP change in a health check-up setting.
Methods
We targeted 12,890 participants who attended the annually health check-up in Tome City, Miyagi Prefecture, Japan between 2017 and 2018. Tome city introduced urinary Na/K ratio measurement during health check-up since 2017. We assessed the relationship between change in urinary Na/K ratio and BP change using multiple regression analyses adjusted for age, sex, and change in body mass index (BMI) and alcohol intake. For each year, we compared the baseline characteristics according to the urinary Na/K ratio and BP level.
Results
The change in systolic BP and diastolic BP was positively associated with the change in urinary Na/K ratio. The average urinary Na/K ratio was significantly lower in 2018 than in 2017 (5.4±3.0 to 4.9±2.2, p < 0.01). Moreover, their systolic BP in 2018 (130.9±17.4 mmHg) was lower than that in 2017 (132.1±17.9 mmHg) (p < 0.01).
Conclusions
The positive association of change in urinary Na/K ratio with hypertension and change in systolic and diastolic BP can be explained by a change in alcohol intake, BMI, and urinary Na/K ratio.
Key messages
Measuring the urinary Na/K ratio in community settings is a potential population approach for counteracting hypertension.
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Affiliation(s)
- Mana Kogure
- Division of Personalized Prevention and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Progressive Innovation Research Project (COI Tohoku Site), Center for Promotion of Innovation Strategy, Head Office of Enterprise Partnerships, Tohoku University, Sendai, Japan
| | - Naoki Nakaya
- Division of Personalized Prevention and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Progressive Innovation Research Project (COI Tohoku Site), Center for Promotion of Innovation Strategy, Head Office of Enterprise Partnerships, Tohoku University, Sendai, Japan
- Department of Health Sciences, Saitama Prefectural University, Koshigaya, Japan
| | - Takumi Hirata
- Division of Personalized Prevention and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Progressive Innovation Research Project (COI Tohoku Site), Center for Promotion of Innovation Strategy, Head Office of Enterprise Partnerships, Tohoku University, Sendai, Japan
- Department of Public health, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - Naho Tsuchiya
- Division of Personalized Prevention and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Progressive Innovation Research Project (COI Tohoku Site), Center for Promotion of Innovation Strategy, Head Office of Enterprise Partnerships, Tohoku University, Sendai, Japan
| | - Tomohiro Nakamura
- Division of Personalized Prevention and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Progressive Innovation Research Project (COI Tohoku Site), Center for Promotion of Innovation Strategy, Head Office of Enterprise Partnerships, Tohoku University, Sendai, Japan
| | - Akira Narita
- Division of Personalized Prevention and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Progressive Innovation Research Project (COI Tohoku Site), Center for Promotion of Innovation Strategy, Head Office of Enterprise Partnerships, Tohoku University, Sendai, Japan
| | - Yoko Suto
- Health Promotion Division, Department of Civic Life Affairs, Tome City, Tome, Japan
| | - Yoko Honma
- Health Promotion Division, Department of Civic Life Affairs, Tome City, Tome, Japan
| | - Hidemi Sasaki
- Health Promotion Division, Department of Civic Life Affairs, Tome City, Tome, Japan
| | - Ken Miyagawa
- Progressive Innovation Research Project (COI Tohoku Site), Center for Promotion of Innovation Strategy, Head Office of Enterprise Partnerships, Tohoku University, Sendai, Japan
| | - Yusuke Ushida
- Progressive Innovation Research Project (COI Tohoku Site), Center for Promotion of Innovation Strategy, Head Office of Enterprise Partnerships, Tohoku University, Sendai, Japan
| | - Hiroyuki Ueda
- Progressive Innovation Research Project (COI Tohoku Site), Center for Promotion of Innovation Strategy, Head Office of Enterprise Partnerships, Tohoku University, Sendai, Japan
| | - Atsushi Hozawa
- Division of Personalized Prevention and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Progressive Innovation Research Project (COI Tohoku Site), Center for Promotion of Innovation Strategy, Head Office of Enterprise Partnerships, Tohoku University, Sendai, Japan
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Ueda H, Yoshimoto S. Cover Feature: Multi‐Redox Active Carbons and Hydrocarbons: Control of their Redox Properties and Potential Applications (Chem. Rec. 9/2021). CHEM REC 2021. [DOI: 10.1002/tcr.202180903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hiroyuki Ueda
- Graduate School of Science and Technology Kumamoto University 2-39-1 Kurokami, Chuo-ku Kumamoto 860-8555 Japan
| | - Soichiro Yoshimoto
- Institute of Industrial Nanomaterials Kumamoto University 2-39-1 Kurokami, Chuo-ku Kumamoto 860-8555 Japan
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Ueda H, Yoshimoto S. Multi-Redox Active Carbons and Hydrocarbons: Control of their Redox Properties and Potential Applications. CHEM REC 2021; 21:2411-2429. [PMID: 34128316 DOI: 10.1002/tcr.202100088] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 05/19/2021] [Indexed: 12/23/2022]
Abstract
Precise control over redox properties is essential for high-performance organic electronic devices such as organic batteries, electrochromic devices, and information storage devices. In this context, multi-redox active carbons and hydrocarbons, represented as Cx Hy molecules (x≥1, y≥0), are highly sought after, because they can switch between multiple redox states. Herein, we outline the redox properties of Cx Hy molecules as solutes and adsorbed species. Furthermore, the limitations of evaluating their redox properties and the possible solutions are summarized. Additionally, the theoretical capacity (mAh/g) and gravimetric energy density (Wh/kg) of secondary batteries were estimated based on the redox properties of 185 Cx Hy molecules, which have primarily been reported in the last decade. Among them, seven Cx Hy molecules were found to have the potential to surpass the energy density of LiNi0.6 Mn0.2 Co0.2 O2 /graphite batteries. The use of Cx Hy molecules in multielectrochromic devices and multi-bit memory is also explained. We believe that this review will encourage further utilization of Cx Hy molecules thereby promoting its applications in organic electronic devices.
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Affiliation(s)
- Hiroyuki Ueda
- Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto, 860-8555, Japan
| | - Soichiro Yoshimoto
- Institute of Industrial Nanomaterials, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto, 860-8555, Japan
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Ueda H, Ito Y, Oida T, Taniguchi Y, Kobayashi T. Magnetic resonance imaging simulation with spin-lock preparations to detect tiny oscillatory magnetic fields. J Magn Reson 2021; 324:106910. [PMID: 33482529 DOI: 10.1016/j.jmr.2020.106910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/27/2020] [Accepted: 12/25/2020] [Indexed: 06/12/2023]
Abstract
Spin-lock preparation was studied to detect tiny oscillatory magnetic fields such as a neural magnetic field without the blood oxygen level-dependent effect. This approach is a direct measurement and independent of static magnetic field strength. Accordingly, it is anticipated as a feasible functional magnetic resonance imaging (fMRI) in low and ultra-low-field MRI. Several reports have been published on spin-lock preparation but reports on imaging simulation are rare. Research in this area can assist in investigating magnetic resonance signal changes and, accordingly, can help to develop new spin-lock methods. In this study, we propose an imaging simulation method with an analytical solution using the Bloch equation. To demonstrate the feasibility of our proposed method, we compared simulated images with experimental results in which the number of sub-voxels and the amplitude and phase of the target oscillatory magnetic fields varied. In addition, we also applied graphics processing unit parallel computing and investigated the feasibility of avoiding an impracticable calculation time by doing so.
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Affiliation(s)
- Hiroyuki Ueda
- Department of Electrical Engineering, Graduate School of Engineering, Kyoto University, Kyoto-daigaku Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
| | - Yosuke Ito
- Department of Electrical Engineering, Graduate School of Engineering, Kyoto University, Kyoto-daigaku Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takenori Oida
- Central Research Laboratory, Hamamatsu Photonics K.K., Japan
| | - Yo Taniguchi
- Research & Development Group, Hitachi, Ltd., Japan
| | - Tetsuo Kobayashi
- Department of Electrical Engineering, Graduate School of Engineering, Kyoto University, Kyoto-daigaku Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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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]
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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.
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Affiliation(s)
- S Takago
- Department of Cardiovascular Surgery, Kanazawa University, Kanazawa, Ishikawa, Japan.
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Sogabe T, Ueda H, Ito Y, Taniguchi Y, Kobayashi T. Dependence of stimulus-induced rotary saturation on the direction of target oscillating magnetic fields: A phantom and simulation study. J Magn Reson 2020; 321:106849. [PMID: 33128915 DOI: 10.1016/j.jmr.2020.106849] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 09/23/2020] [Accepted: 10/09/2020] [Indexed: 06/11/2023]
Abstract
Several noninvasive techniques for the direct measurement of the neuronal activity using magnetic resonance imaging (MRI) have recently been reported. As a promising candidate, we focus on a spin-lock MRI sequence (i.e., stimulus-induced rotary saturation (SIRS)) directly measuring a tiny oscillating magnetic field. Previous phantom studies on SIRS have applied the target oscillating magnetic field parallel to the direction of the static magnetic field B0. However, in practice, the neuromagnetic fields are not always aligned in the same direction as in such a condition. This study investigates the MR signal changes during SIRS when the target magnetic field direction is not the same as that of the B0 field through both phantom experiments and Bloch simulations. The experimental results indicate that only the target magnetic field component along the B0 field affects the signal change, indicating that SIRS has partial sensitivity, even if the target magnetic fields are tilted from the B0 field. Furthermore, the simulation results show good agreements with the experimental results. These results clarify the sensitivity direction of SIRS-based fMRI and lead to the possibility that the direction of the generated neuromagnetic fields can be estimated, such that we can separate directional information from the other information contained in neuromagnetic fields (e.g., phase information).
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Affiliation(s)
- Tomoyuki Sogabe
- Department of Electrical Engineering, Graduate School of Engineering, Kyoto University, Kyoto-daigaku Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Hiroyuki Ueda
- Department of Electrical Engineering, Graduate School of Engineering, Kyoto University, Kyoto-daigaku Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yosuke Ito
- Department of Electrical Engineering, Graduate School of Engineering, Kyoto University, Kyoto-daigaku Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yo Taniguchi
- Research & Development Group, Hitachi, Ltd., Japan
| | - Tetsuo Kobayashi
- Department of Electrical Engineering, Graduate School of Engineering, Kyoto University, Kyoto-daigaku Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
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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
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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
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Ueda H, Ito Y, Oida T, Taniguchi Y, Kobayashi T. Detection of tiny oscillatory magnetic fields using low-field MRI: A combined phantom and simulation study. J Magn Reson 2020; 319:106828. [PMID: 33002769 DOI: 10.1016/j.jmr.2020.106828] [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] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 08/28/2020] [Accepted: 09/05/2020] [Indexed: 06/11/2023]
Abstract
We demonstrated the feasibility of the spin-lock preparation sequence using low-field magnetic resonance (MR) imaging that prevents interference from blood-oxygenation-level-dependent effects. We focused on two spin-lock preparations: spin-lock Mz (SL-Mz) and stimulus-induced rotary saturation (SIRS) and analyzed the magnetization dynamics during the sequences using the Bloch equation. Next, we performed phantom experiments using a loop coil to investigate the MR signal change as a function of the target signal strength and phase. Furthermore, we performed curve fittings to consider the radio frequency, which agreed with the experimental results. Then, we investigated the detectable strength of the magnetic field, and the SL-Mz detected a signal strength of 2.34 nT. In conclusion, our experimental results showed good agreement with the results obtained using the Bloch equation.
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Affiliation(s)
- Hiroyuki Ueda
- Department of Electrical Engineering, Graduate School of Engineering, Kyoto University, Kyoto-daigaku Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
| | - Yosuke Ito
- Department of Electrical Engineering, Graduate School of Engineering, Kyoto University, Kyoto-daigaku Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takenori Oida
- Central Research Laboratory, Hamamatsu Photonics K.K, Japan
| | - Yo Taniguchi
- Research & Development Group, Hitachi, Ltd, Japan
| | - Tetsuo Kobayashi
- Department of Electrical Engineering, Graduate School of Engineering, Kyoto University, Kyoto-daigaku Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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Kogure M, Nakaya N, Hirata T, Tsuchiya N, Nakamura T, Narita A, Suto Y, Honma Y, Sasaki H, Miyagawa K, Ushida Y, Ueda H, Hozawa A. Correction: Sodium/potassium ratio change was associated with blood pressure change: possibility of population approach for sodium/potassium ratio reduction in health checkup. Hypertens Res 2020; 44:262. [PMID: 32901154 DOI: 10.1038/s41440-020-00547-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mana Kogure
- Division of Personalized Prevention and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan. .,Progressive Innovation Research Project (COI Tohoku Site), Center for Promotion of Innovation Strategy, Head Office of Enterprise Partnerships, Tohoku University, Sendai, Japan.
| | - Naoki Nakaya
- Division of Personalized Prevention and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan.,Progressive Innovation Research Project (COI Tohoku Site), Center for Promotion of Innovation Strategy, Head Office of Enterprise Partnerships, Tohoku University, Sendai, Japan.,Department of Health Sciences, Saitama Prefectural University, Koshigaya, Japan
| | - Takumi Hirata
- Division of Personalized Prevention and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan.,Progressive Innovation Research Project (COI Tohoku Site), Center for Promotion of Innovation Strategy, Head Office of Enterprise Partnerships, Tohoku University, Sendai, Japan.,Department of Public Health, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - Naho Tsuchiya
- Division of Personalized Prevention and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan.,Progressive Innovation Research Project (COI Tohoku Site), Center for Promotion of Innovation Strategy, Head Office of Enterprise Partnerships, Tohoku University, Sendai, Japan
| | - Tomohiro Nakamura
- Division of Personalized Prevention and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan.,Progressive Innovation Research Project (COI Tohoku Site), Center for Promotion of Innovation Strategy, Head Office of Enterprise Partnerships, Tohoku University, Sendai, Japan
| | - Akira Narita
- Division of Personalized Prevention and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan.,Progressive Innovation Research Project (COI Tohoku Site), Center for Promotion of Innovation Strategy, Head Office of Enterprise Partnerships, Tohoku University, Sendai, Japan
| | - Yoko Suto
- Health Promotion Division, Department of Civic Life Affairs, Tome City, Miyagi, Japan
| | - Yoko Honma
- Health Promotion Division, Department of Civic Life Affairs, Tome City, Miyagi, Japan
| | - Hidemi Sasaki
- Health Promotion Division, Department of Civic Life Affairs, Tome City, Miyagi, Japan
| | - Ken Miyagawa
- Progressive Innovation Research Project (COI Tohoku Site), Center for Promotion of Innovation Strategy, Head Office of Enterprise Partnerships, Tohoku University, Sendai, Japan
| | - Yusuke Ushida
- Progressive Innovation Research Project (COI Tohoku Site), Center for Promotion of Innovation Strategy, Head Office of Enterprise Partnerships, Tohoku University, Sendai, Japan
| | - Hiroyuki Ueda
- Progressive Innovation Research Project (COI Tohoku Site), Center for Promotion of Innovation Strategy, Head Office of Enterprise Partnerships, Tohoku University, Sendai, Japan
| | - Atsushi Hozawa
- Division of Personalized Prevention and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan.,Progressive Innovation Research Project (COI Tohoku Site), Center for Promotion of Innovation Strategy, Head Office of Enterprise Partnerships, Tohoku University, Sendai, Japan
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Kawabe M, Yamamoto I, Yamakawa T, Katsumata H, Isaka N, Katsuma A, Nakada Y, Kobayashi A, Koike K, Ueda H, Tanno Y, Koike Y, Miki J, Yamada H, Kimura T, Ohkido I, Tsuboi N, Yamamoto H, Kojima H, Yokoo T. Association Between Galactose-Deficient IgA1 Derived From the Tonsils and Recurrence of IgA Nephropathy in Patients Who Underwent Kidney Transplantation. Front Immunol 2020; 11:2068. [PMID: 33013875 PMCID: PMC7494805 DOI: 10.3389/fimmu.2020.02068] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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: 05/29/2020] [Accepted: 07/29/2020] [Indexed: 11/18/2022] Open
Abstract
Background: Recurrence of IgA nephropathy (IgAN) in the transplanted kidney is associated with graft survival, but no specific treatment is available. Tonsillectomy (TE) reportedly arrests the progression of IgAN in the native kidney. Thus, we conducted a single-center retrospective cohort study to evaluate the effect of TE prior to IgAN recurrence. Methods: Of the 36 patients with biopsy-proven IgAN who underwent kidney transplantation, 27 were included in this study. Nine patients underwent TE at 1 year after kidney transplantation (group 1), and the remaining 18 did not undergo TE (group 2). Results: The rate of histological IgAN recurrence was significantly lower in group 1 than in group 2 (11.1 vs. 55.6%, log-rank p = 0.046). In addition, half of the recurrent patients in group 2 exhibited active lesions, compared to none in group 1. Serum Gd-IgA1 levels decreased after TE in group 1, whereas they remained stable or increased slightly in group 2. In the recurrent cases, IgA and Gd-IgA1 were found in the germinal center in addition to the mantle zone of tonsils. Finally, mesangial IgA and Gd-IgA1 immunoreactivity was reduced after TE in some cases. Conclusion: Our data suggest that TE at 1 year after kidney transplantation might be associated with the reduced rate of histological IgAN recurrence. TE arrested or reduced serum Gd-IgA1 and mesangial Gd-IgA1 immunoreactivity. Therefore, we generated a hypothesis that serum Gd-IgA1 derived from the tonsils may play a pivotal role in the pathogenesis of IgAN. Based on these findings, we need to conduct verification in a prospective randomized controlled trial.
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Affiliation(s)
- Mayuko Kawabe
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Izumi Yamamoto
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Takafumi Yamakawa
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Haruki Katsumata
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Nao Isaka
- Department of Otorhinolaryngology, The Jikei University School of Medicine, Tokyo, Japan
| | - Ai Katsuma
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Yasuyuki Nakada
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Akimitsu Kobayashi
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Kentaro Koike
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Hiroyuki Ueda
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Yudo Tanno
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Yusuke Koike
- Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| | - Jun Miki
- Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| | - Hiroki Yamada
- Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| | - Takahiro Kimura
- Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| | - Ichiro Ohkido
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Nobuo Tsuboi
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Hiroyasu Yamamoto
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Hiromi Kojima
- Department of Otorhinolaryngology, The Jikei University School of Medicine, Tokyo, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
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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]
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45
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Ueda H, Nishiyama K, Yoshimoto S. Highly charged fullerene anions electrochemically stabilized by anionic polymers. Electrochem commun 2020. [DOI: 10.1016/j.elecom.2019.106619] [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: 10/25/2022] Open
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46
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Itoi S, Tabuchi S, Abe M, Ueda H, Oyama H, Ogata R, Okabe T, Kishiki A, Sugita H. Difference in tetrodotoxin content between two sympatric planocerid flatworms, Planocera multitentaculata and Planocera reticulata. Toxicon 2019; 173:57-61. [PMID: 31778684 DOI: 10.1016/j.toxicon.2019.11.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 03/04/2019] [Accepted: 11/24/2019] [Indexed: 11/20/2022]
Abstract
Planocerid flatworms and the related species (Platyhelminthes: polycladida) are known as tetrodotoxin (TTX)-bearing organisms, and they contribute to toxification of marine organisms at higher trophic levels, such as pufferfish and sea slugs. However, little is known of their biology or ecology. In this study, we therefore investigated the occurrence and toxicity of two sympatric planocerids, Planocera multitentaculata and Planocera reticulata, in intertidal zones of the central region of mainland Honshu, Japanese Islands. Planocera multitentaculata was much more abundant than P. reticulata. Body weight was greater in P. multitentaculata than in P. reticulata. Although a significant difference in TTX concentration was not observed between the two species, total TTX content per individual was greater in P. multitentaculata.
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Affiliation(s)
- Shiro Itoi
- Department of Marine Science and Resources, Nihon University, Fujisawa, Kanagawa, 252-0880, Japan.
| | - Sora Tabuchi
- Department of Marine Science and Resources, Nihon University, Fujisawa, Kanagawa, 252-0880, Japan
| | - Misato Abe
- Department of Marine Science and Resources, Nihon University, Fujisawa, Kanagawa, 252-0880, Japan
| | - Hiroyuki Ueda
- Department of Marine Science and Resources, Nihon University, Fujisawa, Kanagawa, 252-0880, Japan
| | - Hikaru Oyama
- Department of Marine Science and Resources, Nihon University, Fujisawa, Kanagawa, 252-0880, Japan
| | - Ryuya Ogata
- Department of Marine Science and Resources, Nihon University, Fujisawa, Kanagawa, 252-0880, Japan
| | - Taiki Okabe
- Department of Marine Science and Resources, Nihon University, Fujisawa, Kanagawa, 252-0880, Japan
| | - Ayano Kishiki
- Department of Marine Science and Resources, Nihon University, Fujisawa, Kanagawa, 252-0880, Japan
| | - Haruo Sugita
- Department of Marine Science and Resources, Nihon University, Fujisawa, Kanagawa, 252-0880, Japan
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Tohi Y, Murata S, Makita N, Suzuki I, Kubota M, Sugino Y, Inoue K, Ueda H, Kawakita M. Absence of asymptomatic unruptured renal artery pseudoaneurysm on contrast-enhanced computed tomography after robot-assisted partial nephrectomy without parenchymal renorrhaphy. Asian J Urol 2019; 7:24-28. [PMID: 31970068 PMCID: PMC6962716 DOI: 10.1016/j.ajur.2019.07.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 06/26/2019] [Accepted: 07/01/2019] [Indexed: 11/13/2022] Open
Abstract
Objective To assess the incidence of asymptomatic unruptured renal artery pseudoaneurysm (RAP) on contrast-enhanced computed tomography (CE-CT) after robot-assisted partial nephrectomy (RAPN) without parenchymal renorrhaphy. Methods From May 2016 to December 2017, 78 patients underwent RAPN for renal tumors. Inner suture was performed in the opened collecting system or renal sinus, whereas parenchymal renorrhaphy was not. For hemostasis, the soft coagulation system was used, and absorbable hemostats were placed on the resection bed. CE-CT was carried out within 7 days after surgery. Data on these patients were prospectively collected. A single radiologist determined the diagnosis of RAP. Results Median (range) data were as follows: Patient age, 65 (19–82) years; radiographic tumor size, 30 (12–95) mm; operating time, 166 (102–294) min; warm ischemic time, 16 (7–67) min; and blood loss, 15 (0–4450) mL. One patient (1.6%) required a perioperative blood transfusion. No patient required conversion to open surgery or nephrectomy. CE-CT was carried out at median 6 (3–7) days after surgery. CE-CT showed no RAP development in all 61 patients. Urinary leakage was not observed. One patient had acute cholecystitis, a postoperative complication classified as Clavien-Dindo grade higher than 3, which was treated with cholecystectomy. Positive surgical margin was identified in four patients (6.6%). Conclusion RAPN using soft coagulation and absorbable hemostats without renorrhaphy appears to be feasible and safe. Our technique could eliminate the risk of RAP.
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Affiliation(s)
- Yoichiro Tohi
- Department of Urology, Kobe City Medical Center General Hospital, 2-1-1 Minatojimaminami-cho, Chuo-ku, Kobe City, Japan
| | - Shiori Murata
- Department of Urology, Kobe City Medical Center General Hospital, 2-1-1 Minatojimaminami-cho, Chuo-ku, Kobe City, Japan
| | - Noriyuki Makita
- Department of Urology, Kobe City Medical Center General Hospital, 2-1-1 Minatojimaminami-cho, Chuo-ku, Kobe City, Japan
| | - Issei Suzuki
- Department of Urology, Kobe City Medical Center General Hospital, 2-1-1 Minatojimaminami-cho, Chuo-ku, Kobe City, Japan
| | - Masashi Kubota
- Department of Urology, Kobe City Medical Center General Hospital, 2-1-1 Minatojimaminami-cho, Chuo-ku, Kobe City, Japan
| | - Yoshio Sugino
- Department of Urology, Kobe City Medical Center General Hospital, 2-1-1 Minatojimaminami-cho, Chuo-ku, Kobe City, Japan
| | - Koji Inoue
- Department of Urology, Kobe City Medical Center General Hospital, 2-1-1 Minatojimaminami-cho, Chuo-ku, Kobe City, Japan
| | - Hiroyuki Ueda
- Department of Diagnostic Radiology, Kobe City Medical Center General Hospital, 2-1-1 Minatojimaminami-cho, Chuo-ku, Kobe City, Japan
| | - Mutsushi Kawakita
- Department of Urology, Kobe City Medical Center General Hospital, 2-1-1 Minatojimaminami-cho, Chuo-ku, Kobe City, Japan
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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.
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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
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49
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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.
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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
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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.
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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
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