1
|
Xia Y, Li ZQ, Sun H, Zhang C, Fujita T, Cai ZX. Ultrafine CoRu alloy nanoclusters densely anchored on Nitrogen-Doped graphene nanotubes for a highly efficient hydrogen evolution reaction. J Colloid Interface Sci 2024; 662:995-1004. [PMID: 38387368 DOI: 10.1016/j.jcis.2024.02.117] [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: 11/25/2023] [Revised: 01/24/2024] [Accepted: 02/14/2024] [Indexed: 02/24/2024]
Abstract
Designing highly efficient and stable electrocatalysts for hydrogen evolution reactions (HER) is essential to the production of green and renewable hydrogen. Metal-organic framework (MOF) precursor strategies are promising for the design of excellent electrocatalysts because of their porous architectures and adjustable compositions. In this study, a hydrogen-bonded organic framework (HOF) nanowire was developed as a precursor and template for the controllable and scalable synthesis of CoRu-MOF nanotubes. After calcination in Ar, the CoRu-MOF nanotubes were converted into N-doped graphene (NG) nanotubes with ultrafine CoRu nanoclusters (hereon called Co-xRu@NG-T; x = 0, 5, 10, 15, 25 representing the Ru content of 0-0.25 mmol; T = 400 °C to 700 °C) that were densely encapsulated and isolated on the shell. Taking advantage of the synergistic effects of the porous, one-dimensional hollow structure and ultrafine CoRu nanoclusters, the optimized Co-15Ru@NG-500 catalyst demonstrated superior catalytic performance for HERs in alkaline electrolytes with an overpotential of only 30 mV at 10 mA cm-2 and robust durability for 2000 cycles, which outperforms many typical catalytic materials, such as commercial Pt/C. This work introduces a novel high-efficiency and cost-effective HER catalyst for application in commercial water-splitting electrolysis.
Collapse
Affiliation(s)
- Yanjie Xia
- Collaboration Innovative Center of Henan Province for Energy-Saving Building Materials, Xinyang Normal University, Xinyang 464000, PR China
| | - Zhao-Qiang Li
- College of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, PR China
| | - Haibin Sun
- College of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, PR China
| | - Chao Zhang
- College of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, PR China
| | - Takeshi Fujita
- School of Environmental Science and Engineering, Kochi University of Technology, 185 Miyanokuchi, Tosayamada, Kami City, Kochi 782-8502, Japan.
| | - Ze-Xing Cai
- Collaboration Innovative Center of Henan Province for Energy-Saving Building Materials, Xinyang Normal University, Xinyang 464000, PR China; College of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, PR China; School of Environmental Science and Engineering, Kochi University of Technology, 185 Miyanokuchi, Tosayamada, Kami City, Kochi 782-8502, Japan.
| |
Collapse
|
2
|
Seo M, Watanabe T, Yamada T, Morita T, Kawasaki M, Kikuchi A, Kondo T, Kawai T, Nishimoto Y, Nakamura J, Fujita T, Tanichi M, Chang Y, Oshita T, Kokubu Y, Fukuda Y, Shimizu K, Kinugawa M, Sakai K, Sakata Y, Fukunami M. The clinical relevance of mild cognitive impairment in acute heart failure: A comparison with cognitive impairment. J Cardiol 2024; 83:243-249. [PMID: 37684004 DOI: 10.1016/j.jjcc.2023.08.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 08/29/2023] [Accepted: 08/31/2023] [Indexed: 09/10/2023]
Abstract
BACKGROUND Although mild cognitive impairment (MCI) has received much attention as a precursor of dementia, its prognostic role has not been fully clarified in patients with heart failure (HF). METHODS AND RESULTS We studied 274 patients admitted for acute decompensated HF. Cognitive function was evaluated using Mini Mental State Examination (MMSE). According to the previous definition, MMSE of 0-23, 24-27, and 28-30 were classified as CI (n = 132), MCI (n = 81), and normal cognitive function (n = 61). The primary endpoint was cardiac events, defined as the composite of unplanned HF hospitalization and cardiovascular mortality. During a mean follow-up period of 4.9 ± 3.1 years, 145 patients experienced cardiac events. Multivariable logistic regression analysis showed that hypertension (p = 0.043), low cardiac index (p = 0.022), and low serum albumin level (p = 0.041) had a significant association with cognitive abnormalities. Both CI and MCI were significantly associated with cardiac events after Cox multivariable adjustment [CI: p = 0.001, adjusted HR 2.66 (1.48-4.77); MCI: p = 0.025, adjusted HR 1.90 (1.09-3.31), normal cognitive function group: reference]. Patients with MCI had a significantly higher risk of unplanned HF hospitalization [p = 0.033, adjusted HR 1.91 (1.05-3.47)], but not all-cause mortality (p = 0.533) or cardiovascular mortality (p = 0.920), while CI was significantly associated with all-cause mortality (p = 0.025) and cardiovascular mortality (p = 0.036). CONCLUSION Even MCI had a significant risk of cardiac events in patients with acute decompensated HF. This risk was mainly derived from unplanned HF hospitalization.
Collapse
Affiliation(s)
- Masahiro Seo
- Division of Cardiology, Osaka General Medical Center, Osaka, Japan.
| | - Tetsuya Watanabe
- Division of Cardiology, Osaka General Medical Center, Osaka, Japan
| | - Takahisa Yamada
- Division of Cardiology, Osaka General Medical Center, Osaka, Japan
| | - Takashi Morita
- Division of Cardiology, Osaka General Medical Center, Osaka, Japan
| | - Masato Kawasaki
- Division of Cardiology, Osaka General Medical Center, Osaka, Japan
| | - Atsushi Kikuchi
- Division of Cardiology, Osaka General Medical Center, Osaka, Japan
| | - Takumi Kondo
- Division of Cardiology, Osaka General Medical Center, Osaka, Japan
| | - Tsutomu Kawai
- Division of Cardiology, Osaka General Medical Center, Osaka, Japan
| | - Yuji Nishimoto
- Division of Cardiology, Osaka General Medical Center, Osaka, Japan
| | - Jun Nakamura
- Division of Cardiology, Osaka General Medical Center, Osaka, Japan
| | - Takeshi Fujita
- Division of Cardiology, Osaka General Medical Center, Osaka, Japan
| | - Masanao Tanichi
- Division of Cardiology, Osaka General Medical Center, Osaka, Japan
| | - Yongchol Chang
- Division of Cardiology, Osaka General Medical Center, Osaka, Japan
| | - Takuya Oshita
- Division of Cardiology, Osaka General Medical Center, Osaka, Japan
| | - Yuki Kokubu
- Division of Cardiology, Osaka General Medical Center, Osaka, Japan
| | - Yuto Fukuda
- Division of Cardiology, Osaka General Medical Center, Osaka, Japan
| | - Kentaro Shimizu
- Division of Cardiology, Osaka General Medical Center, Osaka, Japan
| | - Makoto Kinugawa
- Division of Cardiology, Osaka General Medical Center, Osaka, Japan
| | - Katsuyoshi Sakai
- Division of Cardiology, Osaka General Medical Center, Osaka, Japan
| | - Yasushi Sakata
- Division of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Japan
| | | |
Collapse
|
3
|
Cai ZX, Bolar S, Ito Y, Fujita T. Enhancing oxygen evolution reactions in nanoporous high-entropy catalysts using boron and phosphorus additives. Nanoscale 2024; 16:4803-4810. [PMID: 38312053 DOI: 10.1039/d3nr06065a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
High-entropy alloy (HEA) catalysts are a novel area of research in catalysis that shows great potential for more efficient catalyst development. Recent studies have highlighted the promise of HEA catalysts in applications such as water-splitting electrodes, owing to their better stability and ability to improve catalytic activity compared to traditional catalysts. Dealloying, which is a process that removes elements from metallic alloys, is a popular method for creating nanoporous HEA catalysts with large surface areas and interconnected structures. This study focused on the fabrication of nanoporous HEA catalysts with boron and phosphorus additives for the oxygen evolution reaction (OER) in water splitting. Combining B or P with noble metals such as Ir or Ru enhances the OER activity and durability, showing synergistic interactions between metals and light elements. This study used electrochemical evaluations to determine the best-performing catalyst, identifying CoCuFeMoNiIrB as the best catalyst for OERs in alkaline media. X-ray photoemission spectroscopy (XPS) analysis revealed that B effectively shifted the transition elements to higher valence states and induced excess electrons on the Ir-B surface to promote OER catalysis.
Collapse
Affiliation(s)
- Ze-Xing Cai
- School of Engineering Science, Kochi University of Technology, 185 Miyanokuchi, Tosayamada, Kami City, Kochi 782-8502, Japan.
- College of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, P. R. China
| | - Saikat Bolar
- School of Engineering Science, Kochi University of Technology, 185 Miyanokuchi, Tosayamada, Kami City, Kochi 782-8502, Japan.
| | - Yoshikazu Ito
- Institute of Applied Physics, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8573, Japan
| | - Takeshi Fujita
- School of Engineering Science, Kochi University of Technology, 185 Miyanokuchi, Tosayamada, Kami City, Kochi 782-8502, Japan.
| |
Collapse
|
4
|
Hayashi M, Abe M, Fujita T, Matsushita H. Prognostic effect of categorized tumor deposits in gastric cancer: A single-center retrospective study. Surgery 2024; 175:373-379. [PMID: 37940432 DOI: 10.1016/j.surg.2023.09.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 08/02/2023] [Accepted: 09/26/2023] [Indexed: 11/10/2023]
Abstract
BACKGROUND Tumor deposits are defined as all types of isolated cancer lesions without lymphocyte aggregates considered part of the lymph node. Tumor deposits have been reported as a negative prognostic factor. However, the survival significance of categorized tumor deposits is uncertain, particularly in gastric cancer. This study aimed to investigate the prognostic difference among categorized tumor deposits. METHODS Patients who underwent gastrectomy for gastric cancer were enrolled. All tumor deposits were categorized into irregular nodule, irregular nodule star, smooth nodule, and vascular/neural invasion. There are some cases with more than 2 categorized tumor deposits. These cases were categorized as tumor deposit complex in the following analysis. We performed survival analysis between the patients with and without tumor deposits, and compared the survival among each categorized tumor deposit. RESULTS Of 868 patients, there were 96 (11.1%) and 772 (88.9%) patients with and without tumor deposits. Vascular/neural invasion, smooth nodule, irregular nodule, irregular nodule star, and the tumor deposits complex was observed in 6 (6.3%), 15 (15.6%), 43 (44.8%), 1 (1.0%), and 31 (32.3%) patients. Patients with tumor deposits displayed poorer survival than those without; the 3-year overall survival: tumor deposits negative = 87.0%, tumor deposits positive = 53.2% (P < .001). Survival analysis revealed tumor deposits can be a prognostic risk factor (hazard ratio: 1.9854, 95% confidence interval: 1.393-2.830, P < .01). Irregular nodule and the tumor deposits complex demonstrated the worst prognosis (irregular nodule 3-year overall survival: 51.2%, tumor deposits complex 3-year overall survival: 41.9%, P = .001), whereas smooth nodule demonstrated better prognosis (smooth nodule 3-year overall survival: 80%). CONCLUSION Tumor deposits exerted a negative survival effect in gastric cancer. Irregular nodule and the tumor deposits complex displayed a strong prognostic effect.
Collapse
Affiliation(s)
- Masato Hayashi
- Department of Surgery, Tochigi Cancer Center Hospital, Utsunomiya, Japan.
| | - Makoto Abe
- Department of Pathology, Tochigi Cancer Center Hospital, Utsunomiya, Japan
| | - Takeshi Fujita
- Department of Surgery, Tochigi Cancer Center Hospital, Utsunomiya, Japan
| | | |
Collapse
|
5
|
Kokubu Y, Watanabe T, Yamada T, Morita T, Kawasaki M, Kikuchi A, Kondo T, Kawai T, Nishimoto Y, Seo M, Nakamura J, Kayama K, Tamura Y, Fujita T, Chang Y, Tanichi M, Oshita T, Fukuda Y, Fukunami M. A Rare Case of a Common Inferior Pulmonary Vein Presumed to Be a Remnant of the Common Pulmonary Vein. Intern Med 2024; 63:407-411. [PMID: 37316270 PMCID: PMC10901698 DOI: 10.2169/internalmedicine.2005-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 05/08/2023] [Indexed: 06/16/2023] Open
Abstract
A 74-year-old woman with an implanted physiological DDD pacemaker visited our department complaining of palpitations due to atrial fibrillation (AF). Catheter ablation therapy for AF was scheduled. Preoperative multidetector computed tomography showed that the inferior pulmonary vein (PV) was a common trunk, and the left and right superior PVs branched from the center of the left atrial roof. In addition, mapping of the left atrium before AF ablation revealed no potential in either the inferior PV or common trunk. We performed left and right superior PV and posterior wall isolation. After ablation, AF was not observed on pacemaker recordings.
Collapse
Affiliation(s)
- Yuki Kokubu
- Department of Cardiovascular Medicine, Hyogo Prefectural Nishinomiya Hospital, Japan
| | - Tetsuya Watanabe
- Department of Cardiovascular Medicine, Hyogo Prefectural Nishinomiya Hospital, Japan
| | - Takahisa Yamada
- Department of Cardiovascular Medicine, Hyogo Prefectural Nishinomiya Hospital, Japan
| | - Takashi Morita
- Department of Cardiovascular Medicine, Hyogo Prefectural Nishinomiya Hospital, Japan
| | - Masato Kawasaki
- Department of Cardiovascular Medicine, Hyogo Prefectural Nishinomiya Hospital, Japan
| | - Atsushi Kikuchi
- Department of Cardiovascular Medicine, Hyogo Prefectural Nishinomiya Hospital, Japan
| | - Takumi Kondo
- Department of Cardiovascular Medicine, Hyogo Prefectural Nishinomiya Hospital, Japan
| | - Tsutomu Kawai
- Department of Cardiovascular Medicine, Hyogo Prefectural Nishinomiya Hospital, Japan
| | - Yuji Nishimoto
- Department of Cardiovascular Medicine, Hyogo Prefectural Nishinomiya Hospital, Japan
| | - Masahiro Seo
- Department of Cardiovascular Medicine, Hyogo Prefectural Nishinomiya Hospital, Japan
| | - Jun Nakamura
- Department of Cardiovascular Medicine, Hyogo Prefectural Nishinomiya Hospital, Japan
| | - Kiyomi Kayama
- Department of Cardiovascular Medicine, Hyogo Prefectural Nishinomiya Hospital, Japan
| | - Yuto Tamura
- Department of Cardiovascular Medicine, Hyogo Prefectural Nishinomiya Hospital, Japan
| | - Takeshi Fujita
- Department of Cardiovascular Medicine, Hyogo Prefectural Nishinomiya Hospital, Japan
| | - Yongchol Chang
- Department of Cardiovascular Medicine, Hyogo Prefectural Nishinomiya Hospital, Japan
| | - Masanao Tanichi
- Department of Cardiovascular Medicine, Hyogo Prefectural Nishinomiya Hospital, Japan
| | - Takuya Oshita
- Department of Cardiovascular Medicine, Hyogo Prefectural Nishinomiya Hospital, Japan
| | - Yuto Fukuda
- Department of Cardiovascular Medicine, Hyogo Prefectural Nishinomiya Hospital, Japan
| | - Masatake Fukunami
- Department of Cardiovascular Medicine, Hyogo Prefectural Nishinomiya Hospital, Japan
| |
Collapse
|
6
|
Nishikawa T, Fujita T, Morishima T, Okawa S, Hino T, Yasui T, Shioyama W, Oka T, Miyashiro I, Fujita M. Prognostic Effect of Incidental Pulmonary Embolism on Long-Term Mortality in Cancer Patients. Circ J 2024; 88:198-204. [PMID: 33597323 DOI: 10.1253/circj.cj-20-1160] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND The effect of incidental pulmonary embolism (PE) on long-term prognosis in cancer patients is unclear. This study assessed the characteristics of cancer and venous thromboembolism (VTE) and the effect of incidental PE identified by oncologists on long-term survival of patients with cancer.Methods and Results:This single-center, retrospective, cohort study used hospital-based cancer registry data from the Osaka International Cancer Institute linked with electronic medical records and administrative data from Japan's Diagnosis Procedure Combination Per-diem Payment System. Overall, 15,689 cancer patients underwent contrast-enhanced thoracic computed tomography during 2010-2018. After excluding patients with missing data, symptomatic patients, or patients with suspected PE, 174 with incidental PE (PE+ group) and 13,197 with no PE (PE- group) were identified. The total incidence of incidental PE was 1.3%. No deaths from thrombotic events were identified in the PE+ group. Both groups were adjusted for cancer- and VTE-related characteristics using inverse probability weighting. After adjusting for immortal time bias in the PE+ group, Kaplan-Meier analysis revealed that all-cause mortality was higher in the PE+ group (hazard ratio, 2.26; 95% confidence interval, 1.53-3.33). A Cox proportional hazard model revealed that metastatic cancer and a history of curative treatment were significant prognostic factors, whereas central PE and residual proximal deep vein thrombosis were not. CONCLUSIONS Incidental PE in cancer patients indicates poorer prognosis. Cancer-related but not thrombosis-related factors determine prognosis.
Collapse
Affiliation(s)
| | - Takeshi Fujita
- Department of Onco-Cardiology, Osaka International Cancer Institute
| | | | - Sumiyo Okawa
- Cancer Control Center, Osaka International Cancer Institute
| | - Terutaka Hino
- Department of Medical Informatics, Osaka International Cancer Institute
| | - Taku Yasui
- Department of Onco-Cardiology, Osaka International Cancer Institute
| | - Wataru Shioyama
- Department of Onco-Cardiology, Osaka International Cancer Institute
| | - Toru Oka
- Department of Onco-Cardiology, Osaka International Cancer Institute
| | - Isao Miyashiro
- Cancer Control Center, Osaka International Cancer Institute
| | - Masashi Fujita
- Department of Onco-Cardiology, Osaka International Cancer Institute
| |
Collapse
|
7
|
Vasilijic S, Atai NA, Hyakusoku H, Worthington S, Ren Y, Sagers JE, Sahin MI, Brown A, Reddy R, Malhotra C, Fujita T, Landegger LD, Lewis R, Welling DB, Stankovic KM. Identification of immune-related candidate biomarkers in plasma of patients with sporadic vestibular schwannoma. Sci Adv 2023; 9:eadf7295. [PMID: 37948527 PMCID: PMC10637750 DOI: 10.1126/sciadv.adf7295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 10/11/2023] [Indexed: 11/12/2023]
Abstract
Vestibular schwannoma (VS) is an intracranial tumor arising from neoplastic Schwann cells and typically presenting with hearing loss. The traditional belief that hearing deficit is caused by physical expansion of the VS, compressing the auditory nerve, does not explain the common clinical finding that patients with small tumors can have profound hearing loss, suggesting that tumor-secreted factors could influence hearing ability in VS patients. We conducted profiling of patients' plasma for 66 immune-related factors in patients with sporadic VS (N > 170) and identified and validated candidate biomarkers associated with tumor size (S100B) and hearing (MCP-3). We further identified a nine-biomarker panel (TNR-R2, MIF, CD30, MCP-3, IL-2R, BLC, TWEAK, eotaxin, and S100B) with outstanding discriminatory ability for VS. These findings revealed possible therapeutic targets for VS, providing a unique diagnostic tool that may predict hearing change and tumor growth in VS patients, and may inform the timing of tumor resection to preserve hearing.
Collapse
Affiliation(s)
- Sasa Vasilijic
- Department of Otolaryngology–Head and Neck Surgery, Stanford University School of Medicine, Stanford, CA, USA
- Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, USA
| | - Nadia A. Atai
- Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, USA
| | - Hiroshi Hyakusoku
- Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, USA
- Department of Otorhinolaryngology, Yokosuka Kyosai Hospital, Kanagawa, Japan
| | - Steven Worthington
- Harvard Institute for Quantitative Social Science, Harvard University, Cambridge, MA, USA
| | - Yin Ren
- Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, USA
| | - Jessica E. Sagers
- Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, USA
| | - Mehmet I. Sahin
- Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, USA
| | - Alyssa Brown
- Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, USA
| | - Rohan Reddy
- Department of Otolaryngology–Head and Neck Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Charvi Malhotra
- Department of Otolaryngology–Head and Neck Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Takeshi Fujita
- Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, USA
| | - Lukas D. Landegger
- Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, USA
| | - Richard Lewis
- Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, USA
- Department of Neurology, Harvard Medical School, Boston, MA, USA
| | - D. Bradley Welling
- Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, USA
| | - Konstantina M. Stankovic
- Department of Otolaryngology–Head and Neck Surgery, Stanford University School of Medicine, Stanford, CA, USA
- Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, USA
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA, USA
- Wu Tsai Neurosciences Institute, Stanford University, Stanford, CA, USA
| |
Collapse
|
8
|
Yokoi J, Fujita T, Uehara N, Iwaki S, Kakigi A, Nibu KI. Vestibular function after simultaneous bilateral cochlear implantation in adults. Front Neurol 2023; 14:1304927. [PMID: 38020629 PMCID: PMC10657651 DOI: 10.3389/fneur.2023.1304927] [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: 09/30/2023] [Accepted: 10/24/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction Binaural hearing enhances speech intelligibility, source localization, and speech comprehension in noisy environments. Although bilateral cochlear implantation (CI) offers several benefits, concerns arise regarding the risk of bilateral postoperative vestibular dysfunction with simultaneous CI. This study aimed to longitudinally evaluate changes in vestibular function in adult patients who underwent simultaneous bilateral CI using minimally invasive electrodes and surgical techniques. Methods A retrospective review was conducted on 10 patients who underwent simultaneous bilateral CI at our hospital. Vertigo symptoms and vestibular function test results were examined preoperatively, 1-6 months postoperatively, and 1 year postoperatively. Nystagmus tests, caloric reflex tests, vestibular evoked myogenic potentials (VEMP) measurements, and static stabilometry were performed as vestibular function tests. Results Although an initial transient decline in vestibular function was observed, no significant long-term decline was observed in the caloric reflex test, ocular VEMP (oVEMP), or cervical VEMP (cVEMP). Moreover, regardless of the presence or absence of abnormalities in caloric reflex, oVEMP, or cVEMP, no significant deterioration was detected in the static stabilometer test. While two patients reported preoperative dizziness, all patients were symptom-free 1 year postoperatively. Discussion The findings suggest that using current minimally invasive electrodes and surgical techniques in simultaneous bilateral CI leads to temporary vestibular function decline postoperatively. However, most patients experience a recovery in function over time, highlighting the potential safety and efficacy of the procedure. Simultaneous bilateral CI surgery is viable, depending on the patient's auditory needs and burden.
Collapse
Affiliation(s)
| | - Takeshi Fujita
- Department of Otolaryngology - Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | | | | | | | | |
Collapse
|
9
|
Nagawa D, Shimada M, Nakata M, Narita-Kinjo I, Fujita T, Murakami R, Nakamura N, Tomita H. Hypoxia-inducible Factor-1α Suppresses the Innate Immune Response in Cultured Human Proximal Tubular Cells. In Vivo 2023; 37:2437-2446. [PMID: 37905653 PMCID: PMC10621413 DOI: 10.21873/invivo.13349] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 07/08/2023] [Revised: 08/08/2023] [Accepted: 08/09/2023] [Indexed: 11/02/2023]
Abstract
BACKGROUND/AIM Retinoic acid-inducible gene (RIG)-I like receptors (RLRs) are expressed on renal proximal tubular epithelial cells (RPTECs) in viral nephropathy, indicating the presence of RLR-mediated innate immune responses in RPTECs. Hypoxia is also known to affect innate immunity. This study investigated the effects of hypoxia, and hypoxia-inducible factor (HIF) on innate immunity in RPTECs. MATERIALS AND METHODS Primary human RPTECs were cultured under normoxic or hypoxic conditions and treated with a synthetic analog of double-stranded RNA (polyIC). The expression levels of RIG-I and MDA5, as RLRs, and IFNβ, IL6, and TNFα, as inflammatory mediators were evaluated using quantitative reverse transcription-polymerase chain reaction, western blotting, and lactate dehydrogenase activity (LDH) assays. To further investigate the role of hypoxia, a small interfering RNA was used to knockdown HIF1α. RESULTS Under normoxic conditions, polyIC increased RIG-I, MDA5, and IFNβ mRNA expression in RPTECs by, 9.4±0.4-, 10.8±0.5-, and 4.0±0.1-fold, respectively, compared to control, and by 5.4±0.1-, 7.4±0.1-, and 2.4±0.3-fold, respectively, under hypoxic conditions, the rate of increase was lower than that under normoxic conditions (p<0.01). Protein expression showed a similar trend. Under hypoxic conditions, polyIC treatment with HIF1α knockdown in RPTECs increased RIG-I, MDA5, and IFNβ mRNA expression by 3.1±0.5-, 2.9±0.4-, and 6.1±0.4-fold, respectively, and cytotoxicity, demonstrated by LDH assay, was increased compared to that without knockdown (all p<0.01). CONCLUSION Hypoxia suppresses polyIC-induced RLRs mediated innate immune responses in RPTECs via HIF1α.
Collapse
Affiliation(s)
- Daiki Nagawa
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Michiko Shimada
- Community Medicine, Hirosaki University, Graduate School of Medicine, Hirosaki, Japan;
| | - Masamichi Nakata
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Ikuyo Narita-Kinjo
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Takeshi Fujita
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Reiichi Murakami
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Norio Nakamura
- Department of Health Sciences, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Hirofumi Tomita
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| |
Collapse
|
10
|
Fujita T, Seist R, Kao SY, Soares V, Panano L, Khetani RS, Landegger LD, Batts S, Stankovic KM. miR-431 secreted by human vestibular schwannomas increases the mammalian inner ear's vulnerability to noise trauma. Front Neurol 2023; 14:1268359. [PMID: 37885485 PMCID: PMC10598552 DOI: 10.3389/fneur.2023.1268359] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 09/20/2023] [Indexed: 10/28/2023] Open
Abstract
Introduction Vestibular schwannoma (VS) is an intracranial tumor that arises on the vestibular branch of cranial nerve VIII and typically presents with sensorineural hearing loss (SNHL). The mechanisms of this SNHL are postulated to involve alterations in the inner ear's microenvironment mediated by the genetic cargo of VS-secreted extracellular vesicles (EVs). We aimed to identify the EV cargo associated with poor hearing and determine whether its delivery caused hearing loss and cochlear damage in a mouse model in vivo. Methods VS tissue was collected from routinely resected tumors of patients with good (VS-GH) or poor (VS-PH) pre-surgical hearing measured via pure-tone average and word recognition scores. Next-generation sequencing was performed on RNA isolated from cultured primary human VS cells and EVs from VS-conditioned media, stratified by patients' hearing ability. microRNA expression levels were compared between VS-PH and VS-GH samples to identify differentially expressed candidates for packaging into a synthetic adeno-associated viral vector (Anc80L65). Viral vectors containing candidate microRNA were infused to the semicircular canals of mice to evaluate the effects on hearing, including after noise exposure. Results Differentially expressed microRNAs included hsa-miR-431-5p (enriched in VS-PH) and hsa-miR-192-5p (enriched in VS-GH). Newborn mice receiving intracochlear injection of viral vectors over-expressing hsa-miR-431-GFP, hsa-miR-192-GFP, or GFP only (control) had similar hearing 6 weeks post-injection. However, after acoustic trauma, the miR-431 group displayed significantly worse hearing, and greater loss of synaptic ribbons per inner hair cell in the acoustically traumatized cochlear region than the control group. Conclusion Our results suggest that miR-431 contributes to VS-associated hearing loss following cochlear stress. Further investigation is needed to determine whether miR-431 is a potential therapeutic target for SNHL.
Collapse
Affiliation(s)
- Takeshi Fujita
- Department of Otolaryngology – Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, United States
| | - Richard Seist
- Department of Otolaryngology – Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, United States
| | - Shyan-Yuan Kao
- Department of Otolaryngology – Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, United States
| | - Vitor Soares
- Department of Otolaryngology – Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, United States
| | - Lorena Panano
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, United States
| | - Radhika S. Khetani
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, United States
| | - Lukas D. Landegger
- Department of Otolaryngology – Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, United States
| | - Shelley Batts
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Stanford, CA, United States
| | - Konstantina M. Stankovic
- Department of Otolaryngology – Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, United States
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Stanford, CA, United States
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA, United States
- Wu Tsai Neuroscience Institute, Stanford University, Stanford, CA, United States
| |
Collapse
|
11
|
Yamada A, Shinomiya H, Uehara N, Iritani K, Tatehara S, Furukawa T, Teshima M, Miyawaki D, Fujita T, Kakigi A, Kiyota N, Sasaki R, Nibu KI. Oncological outcomes of concurrent chemoradiotherapy with docetaxel, cisplatin, and 5-fluorouracil for locally advanced squamous cell carcinoma of the external auditory canal: A single-center study. Head Neck 2023; 45:2498-2504. [PMID: 37503962 DOI: 10.1002/hed.27461] [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: 03/13/2023] [Revised: 05/30/2023] [Accepted: 06/23/2023] [Indexed: 07/29/2023] Open
Abstract
BACKGROUND Squamous cell carcinoma of the external auditory canal (EACSCC) is a rare condition. However, a standard treatment has not yet been established. We retrospectively evaluated the efficacy, adverse events, and feasibility of TPF-CCRT (concomitant chemoradiotherapy with docetaxel, cisplatin, and 5-fluorouracil) in patients with advanced EACSCC. METHODS Thirty-five consecutive patients with advanced EACSCC (T3, T4) initially treated with TPF-CCRT at Kobe University Hospital were included. T4 diseases with invasion of the brain, internal carotid artery, or internal jugular vein were classified as T4b, and those without these features were classified as T4a. RESULTS Five-year overall survival rates for T3 and T4 were 100% and 64.2%, respectively. A significant difference was observed between T4a and T4b (82.4% vs. 30%, p = 0.007). Five-year progression-free survival rates of T3, T4a, and T4b were 100%, 68%, and 20% (p = 0.022), respectively. CONCLUSIONS TPF-CCRT should be considered as a plausible treatment option for advanced EACSCC.
Collapse
Affiliation(s)
- Akihiro Yamada
- Department of Otolaryngology - Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hirotaka Shinomiya
- Department of Otolaryngology - Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Natsumi Uehara
- Department of Otolaryngology - Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Keisuke Iritani
- Department of Otolaryngology - Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shun Tatehara
- Department of Otolaryngology - Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Tatsuya Furukawa
- Department of Otolaryngology - Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Masanori Teshima
- Department of Otolaryngology - Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Daisuke Miyawaki
- Department of Radiation Oncology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takeshi Fujita
- Department of Otolaryngology - Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Akinobu Kakigi
- Department of Otolaryngology - Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Naomi Kiyota
- Kobe University Hospital Cancer Center, Kobe, Japan
| | - Ryohei Sasaki
- Department of Radiation Oncology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Ken-Ichi Nibu
- Department of Otolaryngology - Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| |
Collapse
|
12
|
Hamaya T, Hatakeyama S, Yoneyama T, Tobisawa Y, Kodama H, Fujita T, Murakami R, Mori K, Okamoto T, Yamamoto H, Yoneyama T, Hashimoto Y, Saitoh H, Narumi S, Tomita H, Ohyama C. Humoral response to SARS-CoV-2 mRNA vaccine on in ABO blood type incompatible kidney transplant recipients treated with low-dose rituximab. Sci Rep 2023; 13:15098. [PMID: 37699969 PMCID: PMC10497504 DOI: 10.1038/s41598-023-42406-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 09/10/2023] [Indexed: 09/14/2023] Open
Abstract
We aimed to evaluate the humoral response after the second and third doses of SARS-CoV-2 mRNA vaccine in ABO blood type incompatible kidney transplant (KT) recipients treated with rituximab. This retrospective study conducted between June 2021 and June 2022 included 131 KT recipients and 154 nontransplant controls who had received mRNA vaccines. We compared the seropositivity (anti-SARS-CoV-2 spike IgG antibody titer ≥ 0.8 U/mL) after the second and third vaccinations. Furthermore, we evaluated the impact of pretransplant vaccination for seropositivity. Of the 131 KT recipients, 50 had received the third dose of mRNA vaccine. The antibody titer was significantly increased after the third dose of mRNA vaccine. The seropositivity rate after the third dose of mRNA vaccine increased from 36 to 70%. We observed no significant difference in seropositivity after the third dose of mRNA vaccine in ABO incompatibility, rituximab use, mycophenolate mofetil use, and age at KT. Of the nine recipients who had received the second or third dose of the mRNA vaccine prior to the KT, eight of the recipients were seropositive both before and after the KT. Our results suggest that ABO incompatibility or rituximab use was not significantly associated with seropositivity.
Collapse
Affiliation(s)
- Tomoko Hamaya
- Department of Urology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Shingo Hatakeyama
- Department of Advanced Blood Purification Therapy, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan.
| | - Tohru Yoneyama
- Department of Glycotechnology, Center for Advanced Medical Research, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Yuki Tobisawa
- Department of Urology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Hirotake Kodama
- Department of Urology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Takeshi Fujita
- Department of Cardiology and Nephrology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Reiichi Murakami
- Department of Cardiology and Nephrology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Kazuyuki Mori
- Department of Urology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Teppei Okamoto
- Department of Urology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Hayato Yamamoto
- Department of Urology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Takahiro Yoneyama
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Yasuhiro Hashimoto
- Department of Urology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Hisao Saitoh
- Department of Urology, Oyokyo Kidney Research Institute, 90 Kozawayamazaki, Hirosaki, Aomori, 036-8243, Japan
| | - Shunji Narumi
- Department of Transplant Nephrology and Surgery, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Nagoya, Japan
| | - Hirofumi Tomita
- Department of Cardiology and Nephrology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Chikara Ohyama
- Department of Urology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
- Department of Advanced Blood Purification Therapy, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| |
Collapse
|
13
|
Kakigi A, Egami N, Fujita T, Uehara N, Yokoi J, Koda K, Nibu KI, Yamashita S, Yamasoba T. Live Imaging of the Dehydration Effect of Isosorbide on the Normal and Hydropic Guinea Pig Cochleae Using Optical Coherence Tomography. Otol Neurotol 2023; 44:833-837. [PMID: 37464452 DOI: 10.1097/mao.0000000000003962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
OBJECTIVE To investigate the isosorbide-induced dehydration effect on the endolymphatic space by intratympanic administration of isosorbide. BACKGROUND Isosorbide, an osmotic diuretic, is used orally as a typical conservative therapy for Menière's disease (MD) in Japan. The dehydration effect occurs 6 hours after isosorbide ingestion. Intratympanic administration of isosorbide resolves endolymphatic hydrops faster than oral ingestion. In addition, the dehydration effect has never been shown directly. Therefore, we investigated the dehydration effect of intratympanic administration of isosorbide on endolymphatic hydrops using optical coherence tomography. METHODS We used eight Hartley guinea pigs, divided into normal and hydrops groups. In the hydrops group, the animals underwent endolymphatic sac obliteration to create endolymphatic hydrops. We obtained midmodiolar section images of the cochleae using optical coherence tomography. Then, 50 to 70% isosorbide was sequentially administered intratympanically for 5 minutes, and the apical turn of the cochlea was observed. The relative midmodiolar cross-sectional area of the scala media was calculated for quantitative assessment of the endolymphatic space. RESULTS In the normal group, 50% isosorbide had a slight but significant dehydration effect on the scala media; at 55 to 70%, Reissner's membrane became flat. In the hydrops group, 50% isosorbide slightly reduced endolymphatic hydrops; 65% flattened Reissner's membrane, and 70% slightly concaved it toward the basilar membrane. CONCLUSION The results suggest that we could select the concentration of isosorbide according to the stage or severity of MD and relief from acute attack. Intratympanic administration of isosorbide may be a promising treatment for patients with MD.
Collapse
Affiliation(s)
- Akinobu Kakigi
- Department of Otolaryngology-Head and Neck Surgery, Kobe University, Graduate School of Medicine, Kobe, Hyogo
| | - Naoya Egami
- Department of Otolaryngology, Faculty of Medicine, The University of Tokyo, Hongo
| | - Takeshi Fujita
- Department of Otolaryngology-Head and Neck Surgery, Kobe University, Graduate School of Medicine, Kobe, Hyogo
| | - Natsumi Uehara
- Department of Otolaryngology-Head and Neck Surgery, Kobe University, Graduate School of Medicine, Kobe, Hyogo
| | - Jun Yokoi
- Department of Otolaryngology-Head and Neck Surgery, Kobe University, Graduate School of Medicine, Kobe, Hyogo
| | - Kento Koda
- Department of Otolaryngology, Faculty of Medicine, The University of Tokyo, Hongo
| | - Ken-Ichi Nibu
- Department of Otolaryngology-Head and Neck Surgery, Kobe University, Graduate School of Medicine, Kobe, Hyogo
| | - Shinji Yamashita
- Research Center for Advanced Science and Technology, The University of Tokyo, Meguro-ku, Tokyo, Japan
| | - Tatsuya Yamasoba
- Department of Otolaryngology, Faculty of Medicine, The University of Tokyo, Hongo
| |
Collapse
|
14
|
Nakamura N, Nagawa D, Nakata M, Narita-Kinjo I, Fujita T, Murakami R, Shimada M, Okita A, Sekino K, Tazawa A, Tomita H. Dietary Intake of Polyunsaturated Fatty Acids and Diabetic Nephropathy: Cohort Analysis of the Tsugaru Study. In Vivo 2023; 37:1890-1893. [PMID: 37369507 DOI: 10.21873/invivo.13282] [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: 05/02/2023] [Revised: 05/14/2023] [Accepted: 05/15/2023] [Indexed: 06/29/2023]
Abstract
BACKGROUND/AIM Diabetic nephropathy (DN) is the leading cause of end-stage renal failure and its incidence continues to increase. To decrease this, a countermeasure from an early stage is required. This is a DN stage 2 observation study that analyzed the results of a concurrent dietary survey in the Tsugaru study and discussed the relationship between dietary intake of n-3 fatty acid and DN. PATIENTS AND METHODS Patients with stage 2 DN and aged 20 years or older in the Tsugaru region of Aomori Prefecture were enrolled. We examined the association between urinary albumin excretion (UAE) at enrollment and 36 months later and n-3PUFA intake obtained from a dietary survey. RESULTS Of the 317 subjects at enrollment, 234 were followed for 36 months, of whom 123 were able to complete the dietary survey. After 36 months of follow-up of these 123 subjects, 28 were in remission and 18 had progressed. Correlations between UAE at 36 months and each of the parameters were examined and UAE at enrollment showed a positive correlation (r=0.4224, p<0.001); correlations between eicosapentaenoic acid (EPA)/arachidonic acid (AA), EPA+docosahexaenoic acid/AA, and n-6/n-3 and UAE at 36 months were weak. As shown by multiple regression analysis, the factor influencing UAE after 36 months was UAE at enrollment. CONCLUSION Concerning the relationship between fatty acid intake balance and UAE, the previously reported renoprotective effect of n-3 fatty acids could not be demonstrated.
Collapse
Affiliation(s)
- Norio Nakamura
- Department of Nursing Science, Hirosaki University Graduate School of Health Sciences, Hirosaki, Japan;
| | - Daiki Nagawa
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Masamichi Nakata
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Ikuyo Narita-Kinjo
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Takeshi Fujita
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Reiichi Murakami
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Michiko Shimada
- Community Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Akiko Okita
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Kanako Sekino
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Atsuro Tazawa
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Hirofumi Tomita
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| |
Collapse
|
15
|
Nakamura N, Osawa H, Nagawa D, Nakata M, Narita-Kinjo I, Fujita T, Murakami R, Shimada M, Tomita H, Tsutaya C, Saito H, Suzuki T. Relationship Between Cardiovascular Events and Serum Lipid and Plasma Fatty Acid Profile in Maintenance Hemodialysis Patients With Diabetic Mellitus. In Vivo 2023; 37:1182-1185. [PMID: 37103116 DOI: 10.21873/invivo.13193] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 03/25/2023] [Accepted: 03/27/2023] [Indexed: 04/28/2023]
Abstract
BACKGROUND/AIM Cardiovascular disease (CVD) is a frequent complication in hemodialysis (HD) patients, especially when the underlying disease is diabetes mellitus (DM). In this study, we investigated cardiovascular events and lipid and fatty acid profile in maintenance HD patients with diabetic kidney disease (DKD). PATIENTS AND METHODS The subjects were 123 patients undergoing HD at Oyokyo Kidney Research Institute Hirosaki Hospital, who were considered to have DKD as the underlying cause of dialysis induction. Among these patients, the lipid and fatty acid profile were examined in two groups, CVD group (n=53) and non-CVD group (n=70), according to the presence or absence of a history of cardiovascular events (coronary artery disease, stroke, arteriosclerosis obliterans, valvular disease, and aortic disease). For serum lipid profile, the levels of total-cholesterol (T-C), triglycerides (TG), high density lipoprotein-cholesterol (HDL-C), and low density lipoprotein-cholesterol (LDL-C) were measured, and for fatty acid balance, 24 fractions of fatty acid composition in plasma total lipids were measured. These markers were compared between the CVD and non-CVD groups. RESULTS The levels of T-C and TG were significantly lower in the CVD group compared with the non-CVD group (147.7±36.9 mg/dl vs. 159.2±35.6 mg/dl, p<0.05, 120.2±65.7 mg/dl vs. 143.8±124.4 mg/dl, p<0.05). In the plasma fatty acid composition, alpha-linolenic acid (ALA) and docosapentaenoic acid (DPA) were significantly lower in the CVD group compared with the non-CVD group (0.74±0.26 wt% vs. 0.84±0.31 wt%, p<0.05; 0.61±0.21 wt% vs. 0.70±0.30 wt%, p<0.05). CONCLUSION Abnormal fatty acid balance, especially low levels of ALA and DPA, rather than serum lipids, are more likely the factors associated with cardiovascular events in maintenance HD patients with underlying DKD.
Collapse
Affiliation(s)
- Norio Nakamura
- Department of Nursing Science, Hirosaki University Graduate School of Health Sciences, Hirosaki, Japan;
| | - Hiroshi Osawa
- Department of General Medicine, Hirosaki University Hospital, Hirosaki, Japan
| | - Daiki Nagawa
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Masamichi Nakata
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Ikuyo Narita-Kinjo
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Takeshi Fujita
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Reiichi Murakami
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Michiko Shimada
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Hirofumi Tomita
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Chikako Tsutaya
- Oyokyo Kidney Research Institute Hirosaki Hospital, Hirosaki, Japan
| | - Hisao Saito
- Oyokyo Kidney Research Institute Hirosaki Hospital, Hirosaki, Japan
| | - Tadashi Suzuki
- Oyokyo Kidney Research Institute Hirosaki Hospital, Hirosaki, Japan
| |
Collapse
|
16
|
Takeuchi M, Matsumura N, Ohno T, Fujita T, Asano M, Mizuki N. Comparing the effectiveness of two surgical techniques for treating lower lid epiblepharon in children: a randomized controlled trial. Sci Rep 2023; 13:5857. [PMID: 37041260 PMCID: PMC10090162 DOI: 10.1038/s41598-023-32050-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 03/21/2023] [Indexed: 04/13/2023] Open
Abstract
A multicenter randomized controlled trial was conducted to compare the effectiveness of incisional and nonincisional surgical techniques for treating lower lid epiblepharon in children. The study included 89 eyes from 50 children aged 3-15 years (mean, 7.5 ± 2.4 years) with moderate lower lid epiblepharon. Patients were randomly assigned to either incisional (modified Hotz procedure with lid margin splitting; 45 eyes of 25 patients) or nonincisional (44 eyes of 25 patients) surgery groups. Treatment outcomes and changes in astigmatism were evaluated 6 months after surgery. Incisional surgery provided a significantly higher percentage (77.8%) of well-corrected treatment results (P = 0.026; odds ratio, 2.88; 95% confidence interval, 1.07-8.22) than nonincisional surgery (55.4%). The mean change in astigmatism 6 months after surgery was - 0.24 ± 0.42 and - 0.01 ± 0.47 D in the incisional and nonincisional surgery groups, respectively. The improvement in astigmatism was significantly higher in the incisional surgery group than in the nonincisional surgery group (P = 0.008). The incisional surgical treatment for moderate epiblepharon in children resulted in a higher number of well-corrected patients, indicating an absence of both ciliary touch and superficial keratitis as well as statistically significant improvements in astigmatism correction.
Collapse
Affiliation(s)
- Masaki Takeuchi
- Department of Ophthalmology and Visual Science, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa, 236-0004, Japan.
| | - Nozomi Matsumura
- Department of Ophthalmology and Visual Science, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa, 236-0004, Japan
- Department of Ophthalmology, Kanagawa Children's Medical Center, 2-138-4 Mutsukawa, Minami-ku, Yokohama, Kanagawa, 232-0066, Japan
| | - Tomoko Ohno
- Department of Ophthalmology and Visual Science, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa, 236-0004, Japan
- Department of Ophthalmology, Kanagawa Children's Medical Center, 2-138-4 Mutsukawa, Minami-ku, Yokohama, Kanagawa, 232-0066, Japan
| | - Takeshi Fujita
- Department of Ophthalmology, Kanagawa Children's Medical Center, 2-138-4 Mutsukawa, Minami-ku, Yokohama, Kanagawa, 232-0066, Japan
| | - Mizuki Asano
- Department of Ophthalmology, Kanagawa Children's Medical Center, 2-138-4 Mutsukawa, Minami-ku, Yokohama, Kanagawa, 232-0066, Japan
| | - Nobuhisa Mizuki
- Department of Ophthalmology and Visual Science, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa, 236-0004, Japan
| |
Collapse
|
17
|
Mochizuki H, Watanabe T, Komeyama S, Hada T, Seguchi O, Fujita T, Tsukamoto Y. Clinical Value of Newly Detected Donor−Specific HLA Antibodies for Predicting the Development of Pathological Antibody Mediated Rejection. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1109] [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: 04/05/2023] Open
|
18
|
Hada T, Seguchi O, Komeyama S, Mochizuki H, Watanabe T, Fukushima S, Fujita T, Tsukamoto Y. Heart Transplantation Using Super Aged Donors at 65 Years and Over. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.574] [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: 04/05/2023] Open
|
19
|
Tsujimoto M, Kakei Y, Yamano N, Fujita T, Ueda T, Ono R, Murakami S, Moriwaki S, Nishigori C. Clinical trial on the efficacy and safety of NPC-15 for patients with xeroderma pigmentosum exaggerated sunburn reaction type: XP-1 study protocol for a multicentre, double-blinded, placebo-controlled, two-group crossover study followed by a long-term open study in Japan. BMJ Open 2023; 13:e068112. [PMID: 36948554 PMCID: PMC10040004 DOI: 10.1136/bmjopen-2022-068112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/24/2023] Open
Abstract
INTRODUCTION Xeroderma pigmentosum (XP) is a rare intractable disease without a fundamental treatment, presenting with severe photosensitivity, freckle-like pigmented and depigmented maculae and numerous skin cancers before the age of 10 years without strict sun protection. About 70% of the patients exhibit extremely severe sunburn reactions and most of them develop neurological symptoms, including sensorineural hearing impairment and progressive peripheral and central nervous disorders beginning from childhood ages. In the preclinical study, we found that N-acetyl-5-methoxytryptamine was effective in suppressing skin tumour development in addition to improvement of auditory brainstem response in chronically ultraviolet-irradiated XP-A model mice. METHODS AND ANALYSIS On the bases of the preclinical study, we conduct a clinical trial on the efficacy of NPC-15 for patients with XP with exaggerated sunburn reaction type by a multicentre, double-blinded placebo-controlled, two-group crossover study followed by a 52 weeks open study. ETHICS AND DISSEMINATION Ethics approval is overseen by the Kobe University Institutional Review Board and Osaka Medical and Pharmaceutical University Institutional Review Board, and the study is conducted in accordance with the approved protocol. All participants will be required to provide written informed consent. Findings will be disseminated through scientific and professional conferences and peer-reviewed journal publications. The data sets generated during the study will be available from the corresponding author on reasonable request. TRIAL REGISTRATION NUMBER jRCTs051210181.
Collapse
Affiliation(s)
- Mariko Tsujimoto
- Dermatology, Kobe University Graduate School of Medicine School of Medicine, Kobe, Japan
| | - Yasumasa Kakei
- Clinical & Translational Research Center, Kobe University Hospital, Kobe, Japan
- Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine School of Medicine, Kobe, Japan
| | - Nozomi Yamano
- Dermatology, Kobe University Graduate School of Medicine School of Medicine, Kobe, Japan
| | - Takeshi Fujita
- Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine School of Medicine, Kobe, Japan
| | - Takehiro Ueda
- Neurology, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
| | - Ryusuke Ono
- Dermatology, Kobe University Graduate School of Medicine School of Medicine, Kobe, Japan
| | - Sae Murakami
- Clinical & Translational Research Center, Kobe University Hospital, Kobe, Japan
| | - Shinichi Moriwaki
- Dermatology, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
| | - Chikako Nishigori
- Dermatology, Kobe University Graduate School of Medicine School of Medicine, Kobe, Japan
- Hyogo Red Cross Blood Center, Kobe, Japan
| |
Collapse
|
20
|
Hayashi K, Tanaka Y, Tsuda T, Nomura A, Fujino N, Furusho H, Sakai N, Iwata Y, Usui S, Sakata K, Kato T, Tada H, Kusayama T, Usuda K, Kawashiri MA, Passman RS, Wada T, Yamagishi M, Takamura M, Fujino N, Nohara A, Kawashiri MA, Hayashi K, Sakata K, Yoshimuta T, Konno T, Funada A, Tada H, Nakanishi C, Hodatsu A, Mori M, Tsuda T, Teramoto R, Nagata Y, Nomura A, Shimojima M, Yoshida S, Yoshida T, Hachiya S, Tamura Y, Kashihara Y, Kobayashi T, Shibayama J, Inaba S, Matsubara T, Yasuda T, Miwa K, Inoue M, Fujita T, Yakuta Y, Aburao T, Matsui T, Higashi K, Koga T, Hikishima K, Namura M, Horita Y, Ikeda M, Terai H, Gamou T, Tama N, Kimura R, Tsujimoto D, Nakahashi T, Ueda K, Ino H, Higashikata T, Kaneda T, Takata M, Yamamoto R, Yoshikawa T, Ohira M, Suematsu T, Tagawa S, Inoue T, Okada H, Kita Y, Fujita C, Ukawa N, Inoguchi Y, Ito Y, Araki T, Oe K, Minamoto M, Yokawa J, Tanaka Y, Mori K, Taguchi T, Kaku B, Katsuda S, Hirase H, Haraki T, Fujioka K, Terada K, Ichise T, Maekawa N, Higashi M, Okeie K, Kiyama M, Ota M, Todo Y, Aoyama T, Yamaguchi M, Noji Y, Mabuchi T, Yagi M, Niwa S, Takashima Y, Murai K, Nishikawa T, Mizuno S, Ohsato K, Misawa K, Kokado H, Michishita I, Iwaki T, Nozue T, Katoh H, Nakashima K, Ito S, Yamagishi M. Correction: Characterization of baseline clinical factors associated with incident worsening kidney function in patients with non-valvular atrial fibrillation: the Hokuriku-Plus AF Registry. Heart Vessels 2023; 38:412. [PMID: 36508013 DOI: 10.1007/s00380-022-02218-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Kenshi Hayashi
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan.
| | - Yoshihiro Tanaka
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan.,Center for Arrhythmia Research, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.,Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Toyonobu Tsuda
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Akihiro Nomura
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Noboru Fujino
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Hiroshi Furusho
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan.,Department of Cardiology, Ishikawa Prefectural Central Hospital, 2-1, Kuratsuki-higashi, Kanazawa, Japan
| | - Norihiko Sakai
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa, Japan
| | - Yasunori Iwata
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa, Japan
| | - Soichiro Usui
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Kenji Sakata
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Takeshi Kato
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Hayato Tada
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Takashi Kusayama
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Keisuke Usuda
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Masa-Aki Kawashiri
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Rod S Passman
- Center for Arrhythmia Research, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.,Division of Cardiology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Takashi Wada
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa, Japan
| | - Masakazu Yamagishi
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan.,Osaka University of Human Sciences, Settsu, Osaka, Japan
| | - Masayuki Takamura
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, 13-1, Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Fujita T, Sakai K, Uehara N, Hoshi Y, Mori A, Koyama H, Sato M, Saito K, Osaki Y, Nishio K, Doi K. Genetic variants of cancer‑associated genes analyzed using next‑generation sequencing in small sporadic vestibular schwannomas. Oncol Lett 2023; 25:121. [PMID: 36844630 PMCID: PMC9950330 DOI: 10.3892/ol.2023.13707] [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: 09/22/2022] [Accepted: 01/27/2023] [Indexed: 02/10/2023] Open
Abstract
Vestibular schwannoma (VS) is the most common tumor of the cerebellopontine angle. Despite the increasing diagnosis of sporadic VS over the past decade, the use of traditional microsurgeries to treat VS has decreased. This is likely a result of the adoption of serial imaging as the most common initial evaluation and treatment strategy, especially for small-sized VS. However, the pathobiology of VSs remains unclear, and elucidating the genetic information of tumor tissue may reveal novel insights. The present study performed a comprehensive genomic analysis of all exons in the key tumor suppressor and oncogenes from 10 small (<15 mm) sporadic VS samples. The evaluations identified NF2, SYNE1, IRS2, APC, CIC, SDHC, BRAF, NUMA1, EXT2, HRAS, BCL11B, MAGI1, RNF123, NLRP1, ASXL1, ADAMTS20, TAF1L, XPC, DDB2 and ETS1 as mutated genes. The current study could not draw any new conclusions about the relationship between VS-related hearing loss and gene mutations; however, it did reveal that NF2 was the most frequently mutated gene in small sporadic VS.
Collapse
Affiliation(s)
- Takeshi Fujita
- Department of Otolaryngology Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan,Correspondence to: Dr Takeshi Fujita, Department of Otolaryngology Head and Neck Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunokicho, Chuoku, Kobe, Hyogo 650-0017, Japan, E-mail:
| | - Kazuko Sakai
- Department of Genome Biology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka 589-8511, Japan
| | - Natsumi Uehara
- Department of Otolaryngology Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan
| | - Yujiro Hoshi
- Department of Otorhinolaryngology, Mitsui Memorial Hospital, Tokyo 101-8643, Japan
| | - Anjin Mori
- Department of Otorhinolaryngology - Head and Neck Surgery, NTT Medical Center Tokyo, Tokyo 141-8625, Japan
| | - Hajime Koyama
- Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Mitsuo Sato
- Department of Otolaryngology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka 589-8511, Japan
| | - Kazuya Saito
- Department of Otorhinolaryngology, Izumi City General Hospital, Izumi, Osaka 594-0073, Japan
| | - Yasuhiro Osaki
- Department of Otolaryngology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka 589-8511, Japan
| | - Kazuto Nishio
- Department of Genome Biology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka 589-8511, Japan
| | - Katsumi Doi
- Department of Otolaryngology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka 589-8511, Japan
| |
Collapse
|
22
|
Vasilijic S, Atai NA, Hyakusoku H, Worthington S, Ren Y, Sagers JE, Sahin MI, Fujita T, Landegger LD, Lewis R, Welling DB, Stankovic KM. Identification of Immune-Related Candidate Biomarkers in Plasma of Patients with Sporadic Vestibular Schwannoma: Candidate Plasma Biomarkers in Vestibular Schwannoma. bioRxiv 2023:2023.01.24.525436. [PMID: 36747696 PMCID: PMC9900840 DOI: 10.1101/2023.01.24.525436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Vestibular schwannoma (VS) is intracranial tumor arising from neoplastic Schwann cells, causing hearing loss in about 95% of patients. The traditional belief that hearing deficit is caused by physical expansion of the VS, compressing the auditory nerve, does not explain the common clinical finding that patients with small tumors can have profound hearing loss, suggesting that tumor-secreted factors could influence hearing ability in VS patients. Here, we conducted profiling of patients' plasma for 67 immune-related factors on a large cohort of VS patients (N>120) and identified candidate biomarkers associated with tumor growth (IL-16 and S100B) and hearing (MDC). We identified the 7-biomarker panel composed of MCP-3, BLC, S100B, FGF-2, MMP-14, eotaxin, and TWEAK that showed outstanding discriminatory ability for VS. These findings revealed possible therapeutic targets for VS-induced hearing loss and provided a unique diagnostic tool that may predict hearing change and tumor growth in VS patients and may help inform the ideal timing of tumor resection to preserve hearing.
Collapse
Affiliation(s)
- Sasa Vasilijic
- Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, US
- Department of Otolaryngology–Head and Neck Surgery, Stanford University School of Medicine, Stanford, CA, US
| | - Nadia A. Atai
- Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, US
| | - Hiroshi Hyakusoku
- Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, US
- Department of Otorhinolaryngology, Yokosuka Kyosai Hospital, Kanagawa, Japan
| | - Steven Worthington
- Harvard Institute for Quantitative Social Science, Harvard University, Cambridge, MA, US
| | - Yin Ren
- Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, US
| | - Jessica E. Sagers
- Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, US
| | - Mehmet I Sahin
- Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, US
| | - Takeshi Fujita
- Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, US
| | - Lukas D. Landegger
- Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, US
| | - Richard Lewis
- Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, US
- Department of Neurology, Harvard Medical School, Boston, MA, US
| | - D. Bradley Welling
- Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, US
| | - Konstantina M. Stankovic
- Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear and Harvard Medical School, Boston, MA, US
- Department of Otolaryngology–Head and Neck Surgery, Stanford University School of Medicine, Stanford, CA, US
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA, US
- Wu Tsai Neuroscience Institute, Stanford University, Stanford, CA, US
| |
Collapse
|
23
|
Matsubara Y, Inamura N, Takada N, Fujita T. Prenatal diagnosis of cor triatriatum sinister. Ultrasound Obstet Gynecol 2023; 61:124-126. [PMID: 36273403 DOI: 10.1002/uog.26099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 10/10/2022] [Accepted: 10/14/2022] [Indexed: 05/27/2023]
Affiliation(s)
| | - N Inamura
- Department of Pediatrics, Faculty of Medicine, Kindai University, Osaka, Japan
| | - N Takada
- Department of Pediatrics, Faculty of Medicine, Kindai University, Osaka, Japan
| | | |
Collapse
|
24
|
Tajuddin AAH, Wakisaka M, Ohto T, Yu Y, Fukushima H, Tanimoto H, Li X, Misu Y, Jeong S, Fujita JI, Tada H, Fujita T, Takeguchi M, Takano K, Matsuoka K, Sato Y, Ito Y. Corrosion-Resistant and High-Entropic Non-Noble-Metal Electrodes for Oxygen Evolution in Acidic Media. Adv Mater 2023; 35:e2207466. [PMID: 36271728 DOI: 10.1002/adma.202207466] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/03/2022] [Indexed: 06/16/2023]
Abstract
To realize a sustainable hydrogen economy, corrosion-resistant non-noble-metal catalysts are needed to replace noble-metal-based catalysts. The combination of passivation elements and catalytically active elements is crucial for simultaneously achieving high corrosion resistance and high catalytic activity. Herein, the self-selection/reconstruction characteristics of multi-element (nonary) alloys that can automatically redistribute suitable elements and rearrange surface structures under the target reaction conditions during the oxygen evolution reaction are investigated. The following synergetic effect (i.e., cocktail effect), among the elements Ti, Zr, Nb, and Mo, significantly contributes to passivation, whereas Cr, Co, Ni, Mn, and Fe enhance the catalytic activity. According to the practical water electrolysis experiments, the self-selected/reconstructed multi-element alloy demonstrates high performance under a similar condition with proton exchange membrane (PEM)-type water electrolysis without obvious degradation during stability tests. This verifies the resistance of the alloy to corrosion when used as an electrode under a practical PEM electrolysis condition.
Collapse
Affiliation(s)
- Aimi A H Tajuddin
- Institute of Applied Physics, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8573, Japan
| | - Mitsuru Wakisaka
- Graduate School of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama, 939-0398, Japan
| | - Tatsuhiko Ohto
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, 560-8531, Japan
| | - Yue Yu
- Institute of Applied Physics, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8573, Japan
| | - Haruki Fukushima
- Graduate School of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama, 939-0398, Japan
| | - Hisanori Tanimoto
- Institute of Applied Physics, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8573, Japan
| | - Xiaoguang Li
- Electron Microscopy Analysis Station, National Institute for Materials Science (NIMS), Tsukuba, 305-0047, Japan
| | - Yoshitatsu Misu
- Central Technical Research Laboratory, ENEOS Corporation, 8 Chidori-cho, Naka-Ku, Yokohama, 231-0815, Japan
| | - Samuel Jeong
- Institute of Applied Physics, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8573, Japan
| | - Jun-Ichi Fujita
- Institute of Applied Physics, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8573, Japan
| | - Hirokazu Tada
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, 560-8531, Japan
| | - Takeshi Fujita
- School of Environmental Science and Engineering, Kochi University of Technology, 185 Miyanokuchi, Tosayamada, Kami City, Kochi, 782-8502, Japan
| | - Masaki Takeguchi
- Electron Microscopy Analysis Station, National Institute for Materials Science (NIMS), Tsukuba, 305-0047, Japan
| | - Kaori Takano
- Central Technical Research Laboratory, ENEOS Corporation, 8 Chidori-cho, Naka-Ku, Yokohama, 231-0815, Japan
| | - Koji Matsuoka
- Central Technical Research Laboratory, ENEOS Corporation, 8 Chidori-cho, Naka-Ku, Yokohama, 231-0815, Japan
| | - Yasushi Sato
- Central Technical Research Laboratory, ENEOS Corporation, 8 Chidori-cho, Naka-Ku, Yokohama, 231-0815, Japan
| | - Yoshikazu Ito
- Institute of Applied Physics, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8573, Japan
| |
Collapse
|
25
|
Zhang L, Jing Z, Li Z, Fujita T. Surface Defects Improved SERS Activity of Nanoporous Gold Prepared by Electrochemical Dealloying. Nanomaterials (Basel) 2022; 13:187. [PMID: 36616097 PMCID: PMC9824599 DOI: 10.3390/nano13010187] [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] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/24/2022] [Accepted: 12/28/2022] [Indexed: 06/17/2023]
Abstract
Nanoporous metals possess excellent catalytic and optical properties that are related with surface morphology. Here, we modulated the ligament surface of nanoporous gold (NPG) by controlling electrochemical dealloying and obtained NPG with an improved enhancement of its surface-enhanced Raman scattering (SERS) property. We found that both high-density atomic steps and kinks on the curved surfaces and high-content silver atoms close to the ligament surface contributed to the high SERS ability. The presented strategy will be useful for the fabrication of nanoporous metal with an excellent surface that is needed for sensing, conversion, and catalytic.
Collapse
Affiliation(s)
- Ling Zhang
- School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Zhiyu Jing
- School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Zhexiao Li
- School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Takeshi Fujita
- School of Environmental Science and Engineering, Kochi University of Technology, Kochi 782-8502, Japan
| |
Collapse
|
26
|
Cai ZX, Xia Y, Ito Y, Ohtani M, Sakamoto H, Ito A, Bai Y, Wang ZL, Yamauchi Y, Fujita T. General Synthesis of MOF Nanotubes via Hydrogen-Bonded Organic Frameworks toward Efficient Hydrogen Evolution Electrocatalysts. ACS Nano 2022; 16:20851-20864. [PMID: 36458840 DOI: 10.1021/acsnano.2c08245] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The application scope of metal-organic frameworks (MOFs) can be extended by rationally designing the architecture and components of MOFs, which can be achieved via a metal-containing solid templated strategy. However, this strategy suffers from low efficiency and provides only one specific MOF from one template. Herein, we present a versatile templated strategy in which organic ligands are weaved into hydrogen-bonded organic frameworks (HOFs) for the controllable and scalable synthesis of MOF nanotubes. HOF nanowires assembled from benzene-1,3,5-tricarboxylic acid and melamine via a simple sonochemical approach serve as both the template and precursor to produce MOF nanotubes with varied metal compositions. Hybrid nanotubes containing nanometal crystals and N-doped graphene prepared through a carbonization process show that the optimized NiRuIr alloy@NG nanotube exhibits excellent electrocatalytic HER activity and durability in alkaline media, outperforming most reported catalysts. The strategy proposed here demonstrates a pioneering study of combination of HOF and MOF, which shows great potential in the design of other nanosized MOFs with various architectures and compositions for potential applications.
Collapse
Affiliation(s)
- Ze-Xing Cai
- School of Environmental Science and Engineering, Kochi University of Technology, 185 Miyanokuchi, Tosayamada, Kami, Kochi782-8502, Japan
- School of Physics and Electronic Engineering, Xinyang Normal University, Xinyang464000, P.R. China
| | - Yanjie Xia
- School of Physics and Electronic Engineering, Xinyang Normal University, Xinyang464000, P.R. China
| | - Yoshikazu Ito
- Institute of Applied Physics, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba305-8573, Japan
| | - Masataka Ohtani
- School of Environmental Science and Engineering, Kochi University of Technology, 185 Miyanokuchi, Tosayamada, Kami, Kochi782-8502, Japan
| | - Hikaru Sakamoto
- School of Environmental Science and Engineering, Kochi University of Technology, 185 Miyanokuchi, Tosayamada, Kami, Kochi782-8502, Japan
| | - Akitaka Ito
- School of Environmental Science and Engineering, Kochi University of Technology, 185 Miyanokuchi, Tosayamada, Kami, Kochi782-8502, Japan
| | - Yijia Bai
- Chemical Engineering College, Inner Mongolia University of Technology, No. 49 Aimin Street, Hohhot010051, P.R. China
- Key Laboratory of CO2 Resource Utilization at Universities of Inner Mongolia Autonomous Region, No. 49 Aimin Street, Hohhot010051, P.R. China
| | - Zhong-Li Wang
- Tianjin Key Laboratory of Applied Catalysis Science & Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, P.R. China
| | - Yusuke Yamauchi
- JST-ERATO Yamauchi Materials Space Tectonics Project and International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki305-0044, Japan
- School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland4072, Australia
| | - Takeshi Fujita
- School of Environmental Science and Engineering, Kochi University of Technology, 185 Miyanokuchi, Tosayamada, Kami, Kochi782-8502, Japan
| |
Collapse
|
27
|
Ishibashi Y, Fujita T, Ichikawa J. Two-Step Synthesis of 2-Trifluoromethylated and 2-Difluoromethylated Benzoheteroles Starting from HFO-1224yd( Z) and HFO-1233yd( Z). Org Lett 2022; 24:9306-9310. [PMID: 36508571 DOI: 10.1021/acs.orglett.2c03930] [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: 12/15/2022]
Abstract
An efficient two-step method for synthesizing 2-(trifluoromethyl)- and 2-(difluoromethyl)benzoheteroles bearing various substituents was developed. Commercially available HFO-1224yd(Z) or HFO-1233yd(Z) underwent the Suzuki-Miyaura coupling with arylboronic acids (acid esters) bearing a nucleophilic moiety at the ortho position to yield the corresponding β-fluoro-β-(trifluoromethyl)- or β-fluoro-β-(difluoromethyl)styrenes, respectively. Treatment of the obtained styrenes with potassium phosphate induced nucleophilic 5-endo-trig cyclization to provide the corresponding 2-trifluoromethylated or 2-difluoromethylated indoles and benzofurans, as well as benzothiophenes.
Collapse
Affiliation(s)
- Yuichiro Ishibashi
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Takeshi Fujita
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Junji Ichikawa
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| |
Collapse
|
28
|
Katsunuma S, Togashi H, Kuno S, Fujita T, Nibu KI. Hearing loss in mice with disruption of auditory epithelial patterning in the cochlea. Front Cell Dev Biol 2022; 10:1073830. [PMID: 36568980 PMCID: PMC9773838 DOI: 10.3389/fcell.2022.1073830] [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: 10/19/2022] [Accepted: 11/22/2022] [Indexed: 12/14/2022] Open
Abstract
In the cochlear auditory epithelia, sensory hair and supporting cells are arranged in a checkerboard-like mosaic pattern, which is conserved across a wide range of species. The cell adhesion molecules nectin-1 and nectin-3 are required for this pattern formation. The checkerboard-like pattern is thought to be necessary for auditory function, but has never been examined. Here, we showed the significance of checkerboard-like cellular pattern in the survival and function of sensory hair cells in the cochlear auditory epithelia of nectin-3 knockout (KO) mice. Nectin-3 KO mice showed progressive hearing loss associated with degeneration of aberrantly attached hair cells via apoptosis. Apoptotic hair cell death was due to the disorganization of tight junctions between the hair cells. Our study revealed that the checkerboard-like cellular pattern in the auditory epithelium provides a structural basis for ensuring the survival of cochlear hair cells and hearing function.
Collapse
Affiliation(s)
- Sayaka Katsunuma
- Department of Otolaryngology, Hyogo Prefectural Kobe Children’s Hospital, Kobe, Japan,Department of Biochemistry and Molecular Biology, Division of Molecular and Cellular Biology, Kobe University Graduate School of Medicine, Kobe, Japan,Department of Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hideru Togashi
- Department of Biochemistry and Molecular Biology, Division of Molecular and Cellular Biology, Kobe University Graduate School of Medicine, Kobe, Japan,PRESTO, Japan Science and Technology Agency, Kobe, Japan,*Correspondence: Hideru Togashi,
| | - Shuhei Kuno
- Department of Biochemistry and Molecular Biology, Division of Molecular and Cellular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takeshi Fujita
- Department of Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Ken-Ichi Nibu
- Department of Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| |
Collapse
|
29
|
Toyama R, Kawachi S, Yamaura JI, Fujita T, Murakami Y, Hosono H, Majima Y. Nanostructure-induced L1 0-ordering of twinned single-crystals in CoPt ferromagnetic nanowires. Nanoscale Adv 2022; 4:5270-5280. [PMID: 36540123 PMCID: PMC9724694 DOI: 10.1039/d2na00626j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 10/06/2022] [Indexed: 06/17/2023]
Abstract
L10-ordered ferromagnetic nanowires with large coercivity are essential for realizing next-generation spintronic devices. Ferromagnetic nanowires have been commonly fabricated by first L10-ordering of initially disordered ferromagnetic films by annealing and then etching them into nanowire structures using lithography. If the L10-ordered nanowires can be fabricated using only lithography and subsequent annealing, the etching process can be omitted, which leads to an improvement in the fabrication process for spintronic devices. However, when nanowires are subjected to annealing, they easily transform into droplets, which is well-known as Plateau-Rayleigh instability. Here, we propose a concept of "nanostructure-induced L10-ordering" of twinned single-crystals in CoPt ferromagnetic nanowires with a 30 nm scale ultrafine linewidth on Si/SiO2 substrates. The driving forces for nanostructure-induced L10-ordering during annealing are atomic surface diffusion and extremely large internal stress at ultrasmall 10 nm scale curvature radii of the nanowires. (Co/Pt)6 multilayer nanowires are fabricated by a lift-off process combining electron-beam lithography and electron-beam evaporation, followed by annealing. Cross-sectional scanning transmission electron microscope images and nano-beam electron diffraction patterns clearly indicate nanostructure-induced L10-ordering of twinned single-crystals in the CoPt ferromagnetic nanowires, which exhibit a large coercivity of 10 kOe for perpendicular, longitudinal, and transversal directions of the nanowires. Two-dimensional grazing incidence X-ray diffraction shows superlattice peaks with Debye-Scherrer ring shapes, which also supports the nanostructure-induced L10-ordering. The fabrication method for nanostructure-induced L10-ordered CoPt ferromagnetic nanowires with twinned single-crystals on Si/SiO2 substrates would be significant for future silicon-technology-compatible spintronic applications.
Collapse
Affiliation(s)
- Ryo Toyama
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology Yokohama Kanagawa 226-8503 Japan
| | - Shiro Kawachi
- Materials Research Center for Element Strategy, Tokyo Institute of Technology Yokohama Kanagawa 226-8503 Japan
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK) Tsukuba Ibaraki 305-0801 Japan
- Graduate School of Science, University of Hyogo Kamigori Hyogo 678-1297 Japan
| | - Jun-Ichi Yamaura
- Materials Research Center for Element Strategy, Tokyo Institute of Technology Yokohama Kanagawa 226-8503 Japan
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK) Tsukuba Ibaraki 305-0801 Japan
| | - Takeshi Fujita
- School of Environmental Science and Engineering, Kochi University of Technology Kami Kochi 782-8502 Japan
| | - Youichi Murakami
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK) Tsukuba Ibaraki 305-0801 Japan
| | - Hideo Hosono
- Materials Research Center for Element Strategy, Tokyo Institute of Technology Yokohama Kanagawa 226-8503 Japan
| | - Yutaka Majima
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology Yokohama Kanagawa 226-8503 Japan
- Materials Research Center for Element Strategy, Tokyo Institute of Technology Yokohama Kanagawa 226-8503 Japan
| |
Collapse
|
30
|
Noguchi N, Ito SI, Hikichi M, Cho Y, Goto K, Kubo A, Matsuda I, Fujita T, Miyauchi M, Kondo T. Highly Dispersed Ni Nanoclusters Spontaneously Formed on Hydrogen Boride Sheets. Molecules 2022; 27:molecules27238261. [PMID: 36500350 PMCID: PMC9736194 DOI: 10.3390/molecules27238261] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/21/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022] Open
Abstract
Hydrogen boride (HB) sheets are two-dimensional materials comprising a negatively charged hexagonal boron network and positively charged hydrogen atoms with a stoichiometric ratio of 1:1. Herein, we report the spontaneous formation of highly dispersed Ni nanoclusters on HB sheets. The spontaneous reduction reaction of Ni ions by the HB sheets was monitored by in-situ measurements with an ultraviolet-visible spectrometer. Acetonitrile solutions of Ni complexes and acetonitrile dispersions of the HB sheets were mixed in several molar ratios (the HB:Ni molar ratio was varied from 100:0.5 to 100:20), and the changes in the absorbance were measured over time. In all cases, the results suggest that Ni metal clusters grow on the HB sheets, considering the increase in absorbance with time. The absorbance peak position shifts to the higher wavelength as the Ni ion concentration increases. Transmission electron microscopy images of the post-reaction products indicate the formation of Ni nanoclusters, with sizes of a few nanometers, on the HB sheets, regardless of the preparation conditions. These highly dispersed Ni nanoclusters supported on HB sheets will be used for catalytic and plasmonic applications and as hydrogen storage materials.
Collapse
Affiliation(s)
- Natsumi Noguchi
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8574, Japan
| | - Shin-ichi Ito
- Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8573, Japan
| | - Miwa Hikichi
- Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8573, Japan
| | - Yohei Cho
- School of Materials and Chemical Technology, Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan
| | - Kazuho Goto
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8574, Japan
| | - Atsushi Kubo
- Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8573, Japan
| | - Iwao Matsuda
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwa 277-8581, Japan
| | - Takeshi Fujita
- School of Environmental Science and Engineering, Kochi University of Technology, 185 Miyanokuchi, Tosayamada, Kami 782-8502, Japan
| | - Masahiro Miyauchi
- School of Materials and Chemical Technology, Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan
- Correspondence: (M.M.); (T.K.)
| | - Takahiro Kondo
- Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8573, Japan
- R&D Center for Zero CO2 Emission Functional Materials and Tsukuba Research Center for Energy Materials Science (TREMS), University of Tsukuba, Tsukuba 305-8573, Japan
- The Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
- Correspondence: (M.M.); (T.K.)
| |
Collapse
|
31
|
Kato K, Murakami R, Shiroto H, Nagawa D, Narita-Kinjo I, Fujita T, Shimada M, Tomita H. Valacyclovir-associated acute kidney injury and encephalopathy in an elderly woman with normal kidney function: a case report. CEN Case Rep 2022; 12:221-225. [PMID: 36399320 PMCID: PMC10151290 DOI: 10.1007/s13730-022-00748-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 11/06/2022] [Indexed: 11/19/2022] Open
Abstract
AbstractA 72-year-old Japanese woman was treated by 3000 mg/day of valacyclovir for the herpes zoster in her left back. She had been treated as hypertension with no renal insufficiency. In two days, she visited an emergency room of a regional stroke care center with dysarthria, dexterity disorder and gait disturbance. Neither head CT nor MRI found intracranial lesions, then, laboratory tests revealed that her serum creatinine level was 4.63 mg/dL. She was transferred and admitted to our hospital on the following day and received hemodialysis under the diagnosis of AKI due to acyclovir accompanied with encephalopathy. Afterward, her serum concentration of acyclovir revealed as 44 μg/mL, which is extremely high. Her neurological symptom disappeared in parallel with the decrease of serum concentration of acyclovir. She received 3 sessions of hemodialysis and discharged on the 8th day of admission with almost normal renal function and no neurological sequela.
Collapse
Affiliation(s)
- Kazufumi Kato
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan
| | - Reiichi Murakami
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan.
| | - Hiroshi Shiroto
- Department of Internal Medicine, Hirosaki Stroke and Rehabilitation Center, Hirosaki, Aomori, Japan
| | - Daiki Nagawa
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan
| | - Ikuyo Narita-Kinjo
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan
| | - Takeshi Fujita
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan
| | - Michiko Shimada
- Community Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan
| | - Hirofumi Tomita
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan
| |
Collapse
|
32
|
Fujita T, Yoshida A, Ichikawa M. A case report of paroxysmal complete atrioventricular block in a patient with dextrocardia and repaired tetralogy of Fallot. Eur Heart J Case Rep 2022; 6:ytac428. [PMID: 36405537 PMCID: PMC9671030 DOI: 10.1093/ehjcr/ytac428] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 06/24/2022] [Accepted: 10/26/2022] [Indexed: 01/14/2024]
Abstract
BACKGROUND Some adults suffer sudden cardiac death after previous surgical repair of tetralogy of Fallot (TOF), and in such cases, ventricular tachycardia is believed to be the most frequent cause of death. However, we report a case of cardiac arrest due to paroxysmal complete atrioventricular block in an adult with dextrocardia and repaired TOF. CASE SUMMARY A 49-year-old woman with dextrocardia and a history of surgical treatment for TOF lost consciousness three times. A previously implanted loop recorder showed a 60-second cardiac arrest, and complete atrioventricular block was diagnosed. An electrophysiological study showed prolongation of the His-ventricular interval but no ventricular tachycardia. A dual chamber pacemaker was implanted, and there has been no recurrence of syncope in the 23 months since implantation. DISCUSSION There is little evidence for paroxysmal complete atrioventricular block in patients with repaired TOF. This case suggests that paroxysmal complete atrioventricular block can occur late after surgical repair of TOF, and research needs to elucidate whether it is the cause of sudden cardiac death in some patients with TOF.
Collapse
Affiliation(s)
- Takeshi Fujita
- Department of Cardiology, Higashi-Osaka Medical Center, 3-4-5 Nishi-Iwata, Higashiosaka, Osaka, 578-8588Japan
| | - Akira Yoshida
- Department of Cardiology, Higashi-Osaka Medical Center, 3-4-5 Nishi-Iwata, Higashiosaka, Osaka, 578-8588Japan
| | - Minoru Ichikawa
- Department of Cardiology, Higashi-Osaka Medical Center, 3-4-5 Nishi-Iwata, Higashiosaka, Osaka, 578-8588Japan
| |
Collapse
|
33
|
Hayashi M, Fujita T, Matsushita H. Evaluating the optimal treatment strategy for early and advanced remnant gastric cancer. ANZ J Surg 2022; 92:2907-2914. [PMID: 36117449 DOI: 10.1111/ans.18049] [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: 06/20/2022] [Revised: 08/21/2022] [Accepted: 09/02/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND This study assessed lymph node metastasis characteristics to investigate the optimal treatment strategy for early and advanced remnant gastric cancer (RGC). METHODS Cases of completion gastrectomy for RGC were enrolled. The frequency of lymph node metastasis was investigated, and risk factors for metastasis were identified. The clinical significance of completion gastrectomy in early remnant gastric carcinoma cases was also examined. In advanced cases, 3-year survival was analysed to investigate the prognostic importance of lymph node dissection and splenectomy. RESULTS Seventy-nine patients were included. Lymphatic invasion and pathological tumour depth were identified as risk factors for lymph node metastasis. There was no metastasis in the pT1 cases. In advanced cases, the incidence of lymph node #10 and jejunal lymph node metastasis was 8.3-10.0% and 17.6%, respectively. Prognosis was found to be unrelated with splenectomy. CONCLUSIONS Lymphatic invasion and pathological T status were identified as risk factors for LN metastasis in RGC. Additional gastrectomy after ESD might not be mandatory for early RGC cases. For advanced RGC cases, splenectomy might not improve patient prognosis, however, lymph node dissection of jejunal and #10 lymph nodes should be considered due to its high incidence of metastasis.
Collapse
Affiliation(s)
- Masato Hayashi
- Department of Surgery, Tochigi Cancer Center Hospital, Utsunomiya, Tochigi, Japan
| | - Takeshi Fujita
- Department of Surgery, Tochigi Cancer Center Hospital, Utsunomiya, Tochigi, Japan
| | - Hisayuki Matsushita
- Department of Surgery, Tochigi Cancer Center Hospital, Utsunomiya, Tochigi, Japan
| |
Collapse
|
34
|
Fujita T, Fukuda T, Suzuki N, Ichikawa J. Rapid Synthesis of Fused Polycyclic Heteroaromatics through Successive Vinylic/Aromatic C−F Bond Activation. European J Org Chem 2022. [DOI: 10.1002/ejoc.202201015] [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: 11/09/2022]
Affiliation(s)
- Takeshi Fujita
- Division of Chemistry, Faculty of Pure and Applied Sciences University of Tsukuba Tsukuba Ibaraki 305-8571 Japan
| | - Takuya Fukuda
- Division of Chemistry, Faculty of Pure and Applied Sciences University of Tsukuba Tsukuba Ibaraki 305-8571 Japan
| | - Naoto Suzuki
- Division of Chemistry, Faculty of Pure and Applied Sciences University of Tsukuba Tsukuba Ibaraki 305-8571 Japan
| | - Junji Ichikawa
- Division of Chemistry, Faculty of Pure and Applied Sciences University of Tsukuba Tsukuba Ibaraki 305-8571 Japan
| |
Collapse
|
35
|
Matsumoto A, Cai ZX, Fujita T. Synthesis of Pyrochlore Oxides Containing Ir and Ru for Efficient Oxygen Evolution Reaction. Materials (Basel) 2022; 15:ma15176107. [PMID: 36079484 PMCID: PMC9458029 DOI: 10.3390/ma15176107] [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] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 08/29/2022] [Accepted: 08/30/2022] [Indexed: 05/30/2023]
Abstract
A versatile synthesis method for pyrochlore oxides containing Ir and Ru with lanthanides Pr, Nd, Eu, Gd, Tb, and Ho is herein presented. Based on the systematic synthesis and Rietveld refinement results, the lattice constants were tunable depending on the ionic radius of the lanthanide used. Subsequently, Pr-based pyrochlore oxides containing Ru and Ir in different ratios were fabricated for the oxygen evolution reaction (OER) in alkaline media, and the OER activity of these catalysts increased when the content of Ir and Ru was the same. Thus, the co-substitution of Ir and Ru in pyrochlore oxides is a novel synthesis strategy for electrocatalysts, which provides great potential for the fabrication of other pyrochlore oxides with various architectures and compositions for application in electrocatalysis.
Collapse
|
36
|
Kinoshita R, Tomura F, Fujita T, Ichikawa J. A New Family of Tropylium Ions: Tropone–Triarylborane Complexes. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200430] [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: 11/06/2022]
Affiliation(s)
- Ryo Kinoshita
- University of Tsukuba: Tsukuba Daigaku Division of Chemistry JAPAN
| | - Fumiya Tomura
- University of Tsukuba: Tsukuba Daigaku Division of Chemistry JAPAN
| | - Takeshi Fujita
- University of Tsukuba: Tsukuba Daigaku Division of Chemistry JAPAN
| | - Junji Ichikawa
- University of Tsukuba Department of Chemistry 1-1-1 Tennodai 305-8571 Tsukuba JAPAN
| |
Collapse
|
37
|
Jonan S, Hamouda N, Fujiwara A, Iwata K, Fujita T, Kato S, Amagase K. Alleviative effects of glutamate against chemotherapeutic agent-induced intestinal mucositis. J Physiol Pharmacol 2022; 73. [PMID: 36696244 DOI: 10.26402/jpp.2022.4.07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 08/30/2022] [Indexed: 01/26/2023]
Abstract
5-Fluorouracil (5-FU) is one of the most widely used chemotherapeutic agents; however, it often causes intestinal mucositis with severe diarrhea. An efficient treatment strategy to reduce this side effect is lacking. Glutamate (Glu), a nonessential amino acid, is the most important energy source in the small intestine and has been shown to maintain intestinal morphology, barrier function, and antioxidative capacity. However, the effects of Glu on intestinal mucositis induced by chemotherapeutic agents have not been explored. This study aimed to demonstrate the alleviative effects of Glu on 5-FU-induced intestinal mucositis. Mucositis was induced in C57B/6N mice by intraperitoneal injection of 5-FU (50 mg/kg) for 6 days and assessed by histological and physiological analyses. Glu (500 or 1000 mg/kg) was orally administered as a pretreatment twice daily for 7 days before the initial treatment of 5-FU. Cellular proliferation and apoptosis were assessed using Ki-67 immunostaining and terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay, respectively. Furthermore, fluorescein isothiocyanate-dextran infiltration was assessed to measure intestinal permeability. In vitro experiments using rat intestinal epithelial cells (IEC-6 cells) were performed to clarify the effect of Glu on 5-FU-induced barrier dysfunction. Glu alleviated 5-FU-induced intestinal mucositis by reducing villi shortening, enhancing cell proliferation, and suppressing apoptosis. It also alleviated the 5-FU-induced increased intestinal permeability. In vitro studies revealed significantly increased trans-epithelial electrical resistance (TEER) in Glu-pretreated IEC-6 cells compared to that in 5-FU-treated and control cells. In conclusion, the findings of this study provide evidence for the potential of Glu to protect against 5-FU-induced intestinal mucositis in patients with cancer.
Collapse
Affiliation(s)
- S Jonan
- Laboratory of Pharmacology and Pharmacotherapeutics, Graduate School of Pharmaceutical Sciences, Ritsumeikan University, Shiga, Japan
| | - N Hamouda
- Laboratory of Pharmacology and Pharmacotherapeutics, Graduate School of Pharmaceutical Sciences, Ritsumeikan University, Shiga, Japan
| | - A Fujiwara
- Laboratory of Pharmacology and Pharmacotherapeutics, Graduate School of Pharmaceutical Sciences, Ritsumeikan University, Shiga, Japan
| | - K Iwata
- Department of Pharmacology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - T Fujita
- Laboratory of Molecular Pharmacokinetics, College of Pharmaceutical Sciences, Ritsumeikan University, Shiga, Japan
| | - S Kato
- Department of Pharmacology and Experimental Therapeutics, Kyoto Pharmaceutical University, Kyoto, Japan
| | - K Amagase
- Laboratory of Pharmacology and Pharmacotherapeutics, Graduate School of Pharmaceutical Sciences, Ritsumeikan University, Shiga, Japan.
| |
Collapse
|
38
|
Fujita T, Fukuda T, Suzuki N, Ichikawa J. Rapid Synthesis of Fused Polycyclic Heteroaromatics via Successive Vinylic/Aromatic C–F Bond Activation. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200600] [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: 11/08/2022]
Affiliation(s)
- Takeshi Fujita
- University of Tsukuba: Tsukuba Daigaku Division of Chemistry JAPAN
| | - Takuya Fukuda
- University of Tsukuba: Tsukuba Daigaku Division of Chemistry JAPAN
| | - Naoto Suzuki
- University of Tsukuba: Tsukuba Daigaku Division of Chemistry JAPAN
| | - Junji Ichikawa
- University of Tsukuba Department of Chemistry 1-1-1 Tennodai 305-8571 Tsukuba JAPAN
| |
Collapse
|
39
|
Landegger LD, Fujita T, Jan TA, Varela-Nieto I. Editorial: Otologic Trauma, Pathology, and Therapy. Front Cell Neurosci 2022; 16:900074. [PMID: 35496907 PMCID: PMC9043112 DOI: 10.3389/fncel.2022.900074] [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: 03/19/2022] [Accepted: 03/25/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Lukas D. Landegger
- Department of Otolaryngology-Head and Neck Surgery, Vienna General Hospital, Medical University of Vienna, Vienna, Austria
- *Correspondence: Lukas D. Landegger
| | - Takeshi Fujita
- Department of Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Taha A. Jan
- Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, San Francisco, CA, United States
| | - Isabel Varela-Nieto
- Institute for Biomedical Research “Alberto Sols”, Spanish National Research Council-Autonomous University of Madrid, Madrid, Spain
- Rare Diseases Networking Biomedical Research Centre, CIBER, Carlos III Institute of Health, Madrid, Spain
- La Paz Hospital Institute for Health Research, Madrid, Spain
| |
Collapse
|
40
|
Hamaya T, Hatakeyama S, Yoneyama T, Tobisawa Y, Kodama H, Fujita T, Murakami R, Fujita N, Okamoto T, Yamamoto H, Yoneyama T, Hashimoto Y, Saitoh H, Narumi S, Tomita H, Ohyama C. Seroprevalence of SARS-CoV-2 spike IgG antibodies after the second BNT162b2 mRNA vaccine in Japanese kidney transplant recipients. Sci Rep 2022; 12:5876. [PMID: 35393481 PMCID: PMC8988536 DOI: 10.1038/s41598-022-09897-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 03/11/2022] [Indexed: 12/21/2022] Open
Abstract
We aimed to evaluate the seroprevalence and investigated factors associated with seropositivity after the second SARS-CoV-2 mRNA vaccination in kidney transplant (KT) recipients. This retrospective study conducted between June and November 2021 included 106 KT recipients and 127 healthy controls who received the second dose of the BNT162b2 mRNA vaccine at least 7 days before the measurement of antibody titers. The antibody titer against the receptor-binding domain of SARS-CoV-2 spike (S) protein was determined. We compared seroprevalence rates (immunoglobulin G [IgG] level of ≥ 0.8 or ≥ 15 U/mL) between the healthy controls and KT recipients and identified factors associated with impaired humoral response. The seroprevalence rate of the healthy controls and KT recipients was 98% and 22%, respectively. Univariate logistic regression analysis revealed that age > 53 years, rituximab use, mycophenolate mofetil use, and KT vintage < 7 years were negatively associated with the rate of anti-SARS-CoV-2 S IgG ≥ 15 U/mL in KT recipients. ABO blood type incompatible KT was not significantly associated with seroprevalence. Humoral response after the second BNT162b2 mRNA vaccine was greatly hindered by immunosuppression therapy in KT recipients. Older age, rituximab use, mycophenolate mofetil use, and KT vintage may play key roles in seroconversion.
Collapse
Affiliation(s)
- Tomoko Hamaya
- Department of Urology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Shingo Hatakeyama
- Department of Advanced Blood Purification Therapy, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan.
| | - Tohru Yoneyama
- Department of Glycotechnology, Center for Advanced Medical Research, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Yuki Tobisawa
- Department of Urology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Hirotake Kodama
- Department of Urology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Takeshi Fujita
- Department of Cardiology and Nephrology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Reiichi Murakami
- Department of Cardiology and Nephrology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Naoki Fujita
- Department of Urology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Teppei Okamoto
- Department of Urology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Hayato Yamamoto
- Department of Urology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Takahiro Yoneyama
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Yasuhiro Hashimoto
- Department of Urology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Hisao Saitoh
- Department of Urology, Oyokyo Kidney Research Institute, 90 Kozawayamazaki, Hirosaki, Aomori, 036-8243, Japan
| | - Shunji Narumi
- Department of Transplant Nephrology and Surgery, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Nagoya, Japan
| | - Hirofumi Tomita
- Department of Cardiology and Nephrology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Chikara Ohyama
- Department of Urology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
- Department of Advanced Blood Purification Therapy, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| |
Collapse
|
41
|
Komeyama S, Watanabe T, Yamagata K, Iwasaki Y, Hada T, Shimojima M, Mochizuki H, Tadokoro N, Kainuma S, Tsukamoto Y, Seguchi O, Fukushima S, Kusano K, Fujita T, Fukushima N. Successful Recovery from Refractory Hypoxia Due to Right-to-Left Shunting Associated with Iatrogenic Atrial Septal Defect After Catheter Ablation in a Patient with a Left Ventricular Assist Device. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1731] [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: 12/01/2022] Open
|
42
|
Tadokoro N, Fukushima S, Kainuma S, Kawamoto N, Kakuta T, Fukushima N, Fujita T. Upgrade to Central Extracorporeal Life Support for Salvage of Left Main Occlusion-Induced Cardiogenic Shock. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
|
43
|
Iwasaki Y, Seguchi O, Komeyama S, Hada T, Shimojima M, Mochizuki H, Watanabe T, Tsukamoto Y, Tadokoro N, Kainuma S, Fukushima S, Fujita T, Fukushima N. Two Cases of BK Polyoma Virus Nephropathy in Patients with Isolated Heart Transplantation: Clinical Usefulness of Urinary Cytology. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
|
44
|
Tamaki S, Yamada T, Watanabe T, Morita T, Kawasaki M, Kikuchi A, Kawai T, Seo M, Nakamura J, Kayama K, Sakamoto D, Ueda K, Kogame T, Tamura Y, Fujita T, Nishigaki K, Fukuda Y, Kokubu Y, Fukunami M. Usefulness of the 2-year iodine-123 metaiodobenzylguanidine-based risk model for post-discharge risk stratification of patients with acute decompensated heart failure. Eur J Nucl Med Mol Imaging 2022; 49:1906-1917. [PMID: 34997293 DOI: 10.1007/s00259-021-05663-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 10/09/2021] [Accepted: 12/15/2021] [Indexed: 01/02/2023]
Abstract
PURPOSE A four-parameter risk model that included cardiac iodine-123 metaiodobenzylguanidine (MIBG) imaging and readily available clinical parameters was recently developed for prediction of 2-year cardiac mortality risk in patients with chronic heart failure. We sought to validate the ability of this risk model to predict post-discharge clinical outcomes in patients with acute decompensated heart failure (ADHF) and to compare its prognostic value with that of the Acute Decompensated Heart Failure National Registry (ADHERE) and Get With The Guidelines-Heart Failure (GWTG-HF) risk scores. METHODS We studied 407 consecutive patients who were admitted for ADHF and survived to discharge, with definitive 2-year outcomes (death or survival). Cardiac MIBG imaging was performed just before discharge. The 2-year cardiac mortality risk was calculated using four parameters, namely age, left ventricular ejection fraction, New York Heart Association functional class, and cardiac MIBG heart-to-mediastinum ratio on delayed images. Patients were stratified into three groups based on the 2-year cardiac mortality risk: low- (< 4%), intermediate- (4-12%), and high-risk (> 12%) groups. The ADHERE and GWTG-HF risk scores were also calculated. RESULTS There was a significant difference in the incidence of cardiac death among the three groups stratified using the 2-year cardiac mortality risk model (p < 0.0001). The 2-year cardiac mortality risk model had a higher C-statistic (0.732) for the prediction of cardiac mortality than the ADHERE and GWTG-HF risk scores. CONCLUSION The 2-year MIBG-based cardiac mortality risk model is useful for predicting post-discharge clinical outcomes in patients with ADHF. TRIAL REGISTRATION NUMBER UMIN000015246, 25 September 2014.
Collapse
Affiliation(s)
- Shunsuke Tamaki
- Division of Cardiology, Osaka General Medical Centre, 3-1-56, Mandai-Higashi, Sumiyoshi-ku, Osaka, 558-8558, Japan.
| | - Takahisa Yamada
- Division of Cardiology, Osaka General Medical Centre, 3-1-56, Mandai-Higashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Tetsuya Watanabe
- Division of Cardiology, Osaka General Medical Centre, 3-1-56, Mandai-Higashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Takashi Morita
- Division of Cardiology, Osaka General Medical Centre, 3-1-56, Mandai-Higashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Masato Kawasaki
- Division of Cardiology, Osaka General Medical Centre, 3-1-56, Mandai-Higashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Atsushi Kikuchi
- Division of Cardiology, Osaka General Medical Centre, 3-1-56, Mandai-Higashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Tsutomu Kawai
- Division of Cardiology, Osaka General Medical Centre, 3-1-56, Mandai-Higashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Masahiro Seo
- Division of Cardiology, Osaka General Medical Centre, 3-1-56, Mandai-Higashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Jun Nakamura
- Division of Cardiology, Osaka General Medical Centre, 3-1-56, Mandai-Higashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Kiyomi Kayama
- Division of Cardiology, Osaka General Medical Centre, 3-1-56, Mandai-Higashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Daisuke Sakamoto
- Division of Cardiology, Osaka General Medical Centre, 3-1-56, Mandai-Higashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Kumpei Ueda
- Division of Cardiology, Osaka General Medical Centre, 3-1-56, Mandai-Higashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Takehiro Kogame
- Division of Cardiology, Osaka General Medical Centre, 3-1-56, Mandai-Higashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Yuto Tamura
- Division of Cardiology, Osaka General Medical Centre, 3-1-56, Mandai-Higashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Takeshi Fujita
- Division of Cardiology, Osaka General Medical Centre, 3-1-56, Mandai-Higashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Keisuke Nishigaki
- Division of Cardiology, Osaka General Medical Centre, 3-1-56, Mandai-Higashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Yuto Fukuda
- Division of Cardiology, Osaka General Medical Centre, 3-1-56, Mandai-Higashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Yuki Kokubu
- Division of Cardiology, Osaka General Medical Centre, 3-1-56, Mandai-Higashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Masatake Fukunami
- Division of Cardiology, Osaka General Medical Centre, 3-1-56, Mandai-Higashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| |
Collapse
|
45
|
Kobayashi T, Iwamoto S, Sahara T, Hoshi Y, Mori A, Koyama H, Fujita T, Sato MP, Osaki Y, Doi K. Examination of risk factors for postoperative vestibular symptoms in patients with cholesteatoma. Acta Otolaryngol 2022; 142:13-18. [PMID: 34923899 DOI: 10.1080/00016489.2021.2014071] [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: 10/19/2022]
Abstract
BACKGROUND In cholesteatoma, the prognosis of tympanoplasty has been well discussed in terms of hearing outcomes and residual or recurrent lesions. Postoperative dizziness and vertigo are major complications of tympanoplasty; however, few reports are available. AIMS/OBJECTIVES We investigated each condition of cholesteatoma postoperative vestibular risk using the STAM system and staging published by EAONO/JOS, as well as findings on bony destruction. MATERIAL AND METHODS From April 2010 to March 2021, 156 patients (166 ears) with cholesteatoma who underwent primary microscopic tympanoplasty at our hospital were registered. Subjective vestibular symptoms were recorded the day after surgery. RESULTS Postoperative vestibular symptoms were observed in 13.9% of subjects. All of them were stage II and had both attic and mastoid lesions. Attic (p < .05) and mastoid (p < .01) lesions were risk factors. Multivariate analysis showed that significant differences were found in past histories of vestibular symptoms (p < .05) and exposure of the dura mater (p < .01). CONCLUSIONS AND SIGNIFICANCE In the exposed dura group, the length of the prominence of the lateral semicircular canal to the middle cranial fossa dura was significantly shorter than that of the non-exposed group (p < .01). Narrow working space and downward operation may increase vestibular risk.
Collapse
Affiliation(s)
- Takaaki Kobayashi
- Department of Otolaryngology, Kindai University Faculty of Medicine, Osaka, Japan
| | - Shusuke Iwamoto
- Department of Otolaryngology, Kindai University Faculty of Medicine, Osaka, Japan
| | - Toshihito Sahara
- Department of Otolaryngology, Kindai University Faculty of Medicine, Osaka, Japan
| | - Yujiro Hoshi
- Department of Otolaryngology, Kindai University Faculty of Medicine, Osaka, Japan
| | - Anjin Mori
- NTT Medical Center Tokyo, Department of Otorhinolaryngology Head and Neck Surgery, Tokyo, Japan
| | - Hajime Koyama
- Department of Otolaryngology, Faculty of Medicine, University of Tokyo, Tokyo, Japan
| | - Takeshi Fujita
- Department of Otorhinolaryngology Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Mitsuo P. Sato
- Department of Otolaryngology, Kindai University Faculty of Medicine, Osaka, Japan
| | - Yasuhiro Osaki
- Department of Otolaryngology, Kindai University Faculty of Medicine, Osaka, Japan
| | - Katsumi Doi
- Department of Otolaryngology, Kindai University Faculty of Medicine, Osaka, Japan
| |
Collapse
|
46
|
Fujita T, Kobayashi Y, Takahashi I, Morioka R, Ichitsuka T, Ichikawa J. Nickel-Catalyzed Reductive Allyl-Aryl Cross-Electrophile Coupling via Allylic C-F Bond Activation. Chemistry 2021; 28:e202103643. [PMID: 34881467 DOI: 10.1002/chem.202103643] [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: 10/08/2021] [Indexed: 11/06/2022]
Abstract
Nickel-catalyzed reductive cross-coupling of allylic difluorides with aryl iodides was achieved via allylic C-F bond activation. Based on this protocol, a series of γ-arylated monofluoroalkenes were synthesized in moderate to high yields with high Z-selectivities. Mechanistic studies suggest that the C-I bonds of the aryl iodides and the C-F bonds of the allylic difluorides were cleaved via oxidative addition and β-fluorine elimination, respectively, where the oxidative addition of less reactive C-F bonds was avoided to permit their transformation.
Collapse
Affiliation(s)
- Takeshi Fujita
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8571, Japan
| | - Yutaro Kobayashi
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8571, Japan
| | - Ikko Takahashi
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8571, Japan.,RIKEN Center for Sustainable Resource Science, Wako, Saitama, 351-0198, Japan
| | - Ryutaro Morioka
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8571, Japan
| | - Tomohiro Ichitsuka
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8571, Japan.,Research Institute of Chemical Process Technology, National Institute of Advanced Industrial Science and Technology (AIST), Sendai, Miyagi, 983-8551, Japan
| | - Junji Ichikawa
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8571, Japan
| |
Collapse
|
47
|
Boulay F, Simpson GS, Ichikawa Y, Kisyov S, Bucurescu D, Takamine A, Ahn DS, Asahi K, Baba H, Balabanski DL, Egami T, Fujita T, Fukuda N, Funayama C, Furukawa T, Georgiev G, Gladkov A, Hass M, Imamura K, Inabe N, Ishibashi Y, Kawaguchi T, Kawamura T, Kim W, Kobayashi Y, Kojima S, Kusoglu A, Lozeva R, Momiyama S, Mukul I, Niikura M, Nishibata H, Nishizaka T, Odahara A, Ohtomo Y, Ralet D, Sato T, Shimizu Y, Sumikama T, Suzuki H, Takeda H, Tao LC, Togano Y, Tominaga D, Ueno H, Yamazaki H, Yang XF, Daugas JM. Boulay et al. Reply. Phys Rev Lett 2021; 127:169202. [PMID: 34723612 DOI: 10.1103/physrevlett.127.169202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 08/31/2021] [Indexed: 06/13/2023]
Affiliation(s)
- F Boulay
- CEA, DAM, DIF, 91297 Arpajon cedex, France
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- GANIL, CEA/DSM-CNRS/IN2P3, BP55027, 14076 Caen cedex 5, France
| | - G S Simpson
- LPSC, CNRS/IN2P3, Université Joseph Fourier Grenoble 1, INPG, 38026 Grenoble Cedex, France
| | - Y Ichikawa
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - S Kisyov
- Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH), 077125 Bucharest-Măgurele, Romania
| | - D Bucurescu
- Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH), 077125 Bucharest-Măgurele, Romania
| | - A Takamine
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - D S Ahn
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - K Asahi
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - H Baba
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - D L Balabanski
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Extreme Light Infrastructure-Nuclear Physics (ELI-NP), Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH), 077125 Bucharest-Măgurele, Romania
| | - T Egami
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Advanced Sciences, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo 184-8584, Japan
| | - T Fujita
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Osaka University, Machikaneyama 1-1 Toyonaka, Osaka 560-0034, Japan
| | - N Fukuda
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - C Funayama
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - T Furukawa
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachioji, Tokyo 192-0397, Japan
| | - G Georgiev
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay Campus, France
| | - A Gladkov
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 702-701, South Korea
| | - M Hass
- Department of Particle Physics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - K Imamura
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Meiji University, 1-1-1 Higashi-Mita, Tama, Kawasaki, Kanagawa 214-8571, Japan
| | - N Inabe
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Y Ishibashi
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-5877, Japan
| | - T Kawaguchi
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Advanced Sciences, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo 184-8584, Japan
| | - T Kawamura
- Department of Physics, Osaka University, Machikaneyama 1-1 Toyonaka, Osaka 560-0034, Japan
| | - W Kim
- Department of Physics, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 702-701, South Korea
| | - Y Kobayashi
- Department of Informatics and Engineering, University of Electro-Communication, 1-5-1 Chofugaoka, Chohu, Tokyo 182-8585, Japan
| | - S Kojima
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - A Kusoglu
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay Campus, France
- Department of Physics, Faculty of Science, Istanbul University, Vezneciler/Faith, 34134 Istanbul, Turkey
| | - R Lozeva
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay Campus, France
| | - S Momiyama
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - I Mukul
- Department of Particle Physics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - M Niikura
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - H Nishibata
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Osaka University, Machikaneyama 1-1 Toyonaka, Osaka 560-0034, Japan
| | - T Nishizaka
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Advanced Sciences, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo 184-8584, Japan
| | - A Odahara
- Department of Physics, Osaka University, Machikaneyama 1-1 Toyonaka, Osaka 560-0034, Japan
| | - Y Ohtomo
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - D Ralet
- CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay Campus, France
| | - T Sato
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - Y Shimizu
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - T Sumikama
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Suzuki
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Takeda
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - L C Tao
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - Y Togano
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - D Tominaga
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Advanced Sciences, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo 184-8584, Japan
| | - H Ueno
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - H Yamazaki
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - X F Yang
- Instituut voor Kern-en Stralingsfysica, K.U. Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
| | - J M Daugas
- CEA, DAM, DIF, 91297 Arpajon cedex, France
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| |
Collapse
|
48
|
Maemura K, Ikeda Y, Eda Y, Oki T, Yazaki M, Fujita T, Iida Y, Nabeta T, Ishii S, Koriyama K, Maekawa E, Koitabashi T, Ako J. Association between lowering heart rate during IMPELLA support and favorable short-term outcome in patients with cardiogenic shock. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1537] [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
Impella has been increasingly used in patients with cardiogenic shock (CGS). Target values for clinical indices for appropriate management of Impella have not yet been established.
Purpose
We aimed to elucidate the association between heat rate (HR) during Impella treatment in patients with CGS and clinical outcomes.
Methods and results
We retrospectively evaluated 62 patients (68±14 years; male 77%) with CGS receiving temporary circulatory support with the Impella between February 1, 2019, and February 31, 2021. The primary end point was 30-day mortality. Clinical characteristics, laboratory and hemodynamic markers at implantation of Impella (baseline), 12, 24 hr after implantation, and removal of Impella were assessed. There were 28 patients with concomitant use of extracorporeal membrane oxygenation (ECMO). Treatment periods using Impella were 8±6 days. After excluding 11 patients who died during Impella support, the relationship between clinical indicators at each time points and 30-day mortality was evaluated. There were 22 patients (43%) with 30-day mortality. Factors associated with 30-day mortality were: female, ECMO, higher 24-hr lactate level, lower 24-hr cardiac power output, and higher HR at removal. Lower HR of ≤81 bpm at removal was found to most accurately predict lower 30-day mortality (Figure 1). Higher increases in dose of beta-blockers during Impella support and lower absolute doses of norepinephrine at removal were correlated with decreases in HR during Impella support.
Conclusions
In patients with CGS treated with Impella, lower HR at removal was associated with lower incidence of 30-day mortality. Lowering HR during Impella treatment was recognized as a simple indicator for favorable clinical outcomes in patients with CGS. It was suggested that chronotropic interventions during Impella treatment may be novel therapeutic options in patients with CGS.
Funding Acknowledgement
Type of funding sources: None. Figure 1
Collapse
Affiliation(s)
- K Maemura
- Kitasato University School of Medicine, Kanagawa, Japan
| | - Y Ikeda
- Kitasato University School of Medicine, Kanagawa, Japan
| | - Y Eda
- Kitasato University School of Medicine, Kanagawa, Japan
| | - T Oki
- Kitasato University School of Medicine, Kanagawa, Japan
| | - M Yazaki
- Kitasato University School of Medicine, Kanagawa, Japan
| | - T Fujita
- Kitasato University School of Medicine, Kanagawa, Japan
| | - Y Iida
- Kitasato University School of Medicine, Kanagawa, Japan
| | - T Nabeta
- Kitasato University School of Medicine, Kanagawa, Japan
| | - S Ishii
- Kitasato University School of Medicine, Kanagawa, Japan
| | - K Koriyama
- Kitasato University School of Medicine, Kanagawa, Japan
| | - E Maekawa
- Kitasato University School of Medicine, Kanagawa, Japan
| | - T Koitabashi
- Kitasato University School of Medicine, Kanagawa, Japan
| | - J Ako
- Kitasato University School of Medicine, Kanagawa, Japan
| |
Collapse
|
49
|
Fujita T, Morioka R, Fukuda T, Suzuki N, Ichikawa J. Acid-mediated intermolecular C-F/C-H cross-coupling of 2-fluorobenzofurans with arenes: synthesis of 2-arylbenzofurans. Chem Commun (Camb) 2021; 57:8500-8503. [PMID: 34351333 DOI: 10.1039/d1cc03453g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Transition-metal-free acid-promoted biaryl construction was achieved via intermolecular C-F/C-H cross-coupling. By treating 2-fluorobenzofurans with arenes in the presence of AlCl3, 2-arylbenzofurans were obtained. This protocol was successfully applied to the short-step orthogonal synthesis of a bioactive 2-arylbenzofuran natural product, which allows independent transformations of C-F and C-Br bonds. Mechanistic studies indicated that α-fluorine-stabilized carbocations, generated via the protonation of 2-fluorobenzofurans, served as key intermediates. The Friedel-Crafts-type C-C bond formation between the α-fluorocarbocations and arenes, followed by hydrogen fluoride elimination, afforded 2-arylbenzofurans.
Collapse
Affiliation(s)
- Takeshi Fujita
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan.
| | | | | | | | | |
Collapse
|
50
|
Cai ZX, Goou H, Ito Y, Tokunaga T, Miyauchi M, Abe H, Fujita T. Nanoporous ultra-high-entropy alloys containing fourteen elements for water splitting electrocatalysis. Chem Sci 2021; 12:11306-11315. [PMID: 34667541 PMCID: PMC8447928 DOI: 10.1039/d1sc01981c] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [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: 04/09/2021] [Accepted: 07/29/2021] [Indexed: 12/19/2022] Open
Abstract
High-entropy alloys (HEAs) are near-equimolar alloys comprising five or more elements. In recent years, catalysis using HEAs has attracted considerable attention across various fields. Herein, we demonstrate the facile synthesis of nanoporous ultra-high-entropy alloys (np-UHEAs) with hierarchical porosity via dealloying. These np-UHEAs contain up to 14 elements, namely, Al, Ag, Au, Co, Cu, Fe, Ir, Mo, Ni, Pd, Pt, Rh, Ru, and Ti. Furthermore, they exhibit high catalytic activities and electrochemical stabilities in the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in acidic media, superior to that of commercial Pt/graphene and IrO2 catalysts. Our results offer valuable insights for the selection of elements as catalysts for various applications.
Collapse
Affiliation(s)
- Ze-Xing Cai
- School of Environmental Science and Engineering, Kochi University of Technology 185 Miyanokuchi, Tosayamada Kami City Kochi 782-8502 Japan
| | - Hiromi Goou
- School of Environmental Science and Engineering, Kochi University of Technology 185 Miyanokuchi, Tosayamada Kami City Kochi 782-8502 Japan
| | - Yoshikazu Ito
- Institute of Applied Physics, Graduate School of Pure and Applied Sciences, University of Tsukuba Tsukuba 305-8573 Japan
| | - Tomoharu Tokunaga
- Institute of Materials and Systems for Sustainability, Nagoya University Nagoya 464-8603 Japan
| | - Masahiro Miyauchi
- Tokyo Institute of Technology 2-12-1 Ookayama, Meguro-ku Tokyo 152-8552 Japan
| | - Hideki Abe
- National Institute for Materials Science 1-1 Namiki, Tsukuba Ibaraki 305-0044 Japan
| | - Takeshi Fujita
- School of Environmental Science and Engineering, Kochi University of Technology 185 Miyanokuchi, Tosayamada Kami City Kochi 782-8502 Japan
| |
Collapse
|