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Kondo T, Otake K, Kakinuma H, Sato Y, Ambo S, Egusa H. Zinc- and Fluoride-Releasing Bioactive Glass as a Novel Bone Substitute. J Dent Res 2024:220345241231772. [PMID: 38581240 DOI: 10.1177/00220345241231772] [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: 04/08/2024] Open
Abstract
Bioglass 45S5, a silica-based glass, has pioneered a new field of biomaterials. Bioglass 45S5 promotes mineralization through calcium ion release and is widely used in the dental field, including toothpaste formulations. However, the use of Bioglass 45S5 for bone grafting is limited owing to the induction of inflammation, as well as reduced degradation and ion release. Phosphate-based glasses exhibit higher solubility and ion release than silica-based glass. Given that these glasses can be synthesized at low temperatures (approximately 1,000°C), they can easily be doped with various metal oxides to confer therapeutic properties. Herein, we fabricated zinc- and fluoride-doped phosphate-based glass (multicomponent phosphate [MP] bioactive glass) and further doped aluminum oxide into the MP glass (4% Al-MP glass) to overcome the striking solubility of phosphate-based glass. Increased amounts of zinc and fluoride ions were detected in water containing the MP glass. Doping of aluminum oxide into the MP glass suppressed the striking dissolution in water, with 4% Al-MP glass exhibiting the highest stability in water. Compared with Bioglass 45S5, 4% Al-MP glass in water had a notably reduced particle size, supporting the abundant ion release of 4% Al-MP glass. Compared with Bioglass 45S5, 4% Al-MP glass enhanced the osteogenesis of mouse bone marrow-derived mesenchymal stem cells. Mouse macrophages cultured with 4% Al-MP glass displayed enhanced induction of anti-inflammatory M2 macrophages and reduced proinflammatory M1 macrophages, indicating M2 polarization. Upon implanting 4% Al-MP glass or Bioglass 45S5 in a mouse calvarial defect, 4% Al-MP glass promoted significant bone regeneration when compared with Bioglass 45S5. Hence, we successfully fabricated zinc- and fluoride-releasing bioactive glasses with improved osteogenic and anti-inflammatory properties, which could serve as a promising biomaterial for bone regeneration.
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Affiliation(s)
- T Kondo
- Division of Molecular & Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry, Sendai, Japan
- Department of Next-Generation Dental Material Engineering, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - K Otake
- Division of Molecular & Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - H Kakinuma
- Department of Next-Generation Dental Material Engineering, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Y Sato
- Division of Molecular & Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - S Ambo
- Division of Molecular & Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - H Egusa
- Division of Molecular & Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry, Sendai, Japan
- Department of Next-Generation Dental Material Engineering, Tohoku University Graduate School of Dentistry, Sendai, Japan
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Muraoka H, Kaneda T, Kondo T, Hirahara N, Kohinata Y, Tokunaga S. Differentiation of submandibular sialadenitis based on apparent diffusion coefficient. Oral Dis 2024. [PMID: 38566274 DOI: 10.1111/odi.14953] [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: 01/04/2024] [Revised: 03/07/2024] [Accepted: 03/26/2024] [Indexed: 04/04/2024]
Abstract
OBJECTIVES This study aimed to quantify the submandibular gland in suppurative sialadenitis, primary Sjögren's syndrome (pSS) and radiation-induced sialadenitis using the apparent diffusion coefficient (ADC) for differential diagnosis. SUBJECTS AND METHODS This retrospective study included 16 patients with suppurative sialadenitis (n = 9), pSS (n = 3) and radiation-induced sialadenitis (n = 4) who underwent magnetic resonance imaging between June 2006 and May 2022. The ADC of the submandibular glands in each state was calculated, and the differences were analysed using a one-way analysis of variance and Tukey's post hoc test. Receiver operating characteristic curves were used to assess the ability of the ADC to distinguish each condition. Statistical significance was set at p < 0.05. RESULTS The mean ADC value (×10-3 mm2/s) ± standard deviation in the control (non-affected side of the suppurative sialadenitis group), suppurative sialadenitis, pSS and radiation-induced groups were 0.94 ± 0.16, 1.24 ± 0.16, 1.33 ± 0.13 and 1.5 ± 0.12, respectively (p < 0.001). The diagnostic value for distinguishing each group was ≥0.75. CONCLUSION ADC values are useful for quantitatively assessing and distinguishing submandibular glands in suppurative sialadenitis, primary Sjögren's syndrome and radiation-induced sialadenitis.
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Affiliation(s)
- Hirotaka Muraoka
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, Japan
| | - Takashi Kaneda
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, Japan
| | - Takumi Kondo
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, Japan
| | - Naohisa Hirahara
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, Japan
| | - Yuta Kohinata
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, Japan
| | - Satoshi Tokunaga
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, Japan
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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.
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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
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Muraoka H, Kaneda T, Kondo T, Otsuka K, Tokunaga S. Visualising cervical lymph nodes in jaw osteonecrosis using diffusion-weighted imaging. Oral Dis 2024. [PMID: 38515001 DOI: 10.1111/odi.14938] [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: 12/20/2023] [Revised: 02/06/2024] [Accepted: 03/10/2024] [Indexed: 03/23/2024]
Abstract
OBJECTIVES This study aimed to apply diffusion-weighted imaging to the evaluation of cervical lymph nodes affected by medication-related osteonecrosis of the jaw (MRONJ). METHODS This retrospective study analysed the diffusion-weighted imaging data of 70 patients with or without MRONJ (Stages 0-3). The mean apparent diffusion coefficient (ADC) values of the submandibular (level IB) and superior internal jugular (level IIA) nodes in the control and MRONJ groups were calculated, and differences were analysed using the Mann-Whitney test. Moreover, receiver operating characteristic (ROC) curve analysis was performed to evaluate the ability of ADC values to predict lymph nodes that were affected by MRONJ. p < 0.05 was considered statistically significant. RESULTS The median [interquartile range] (×10-3 mm2/s) of level IB was 0.74 [0.7-0.81] and 0.93 [0.84-1.09] and that of level IIA was 0.79 [0.76-0.85] and 0.97 [0.84-1.06] in the control and MRONJ groups respectively. ROC analysis revealed that the ADC value had excellent ability to discriminate between the control and MRONJ groups. CONCLUSIONS The study findings indicate that diffusion-weighted imaging can contribute to differentiation of MRONJ from other cervical lymph node diseases and facilitate early detection of MRONJ.
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Affiliation(s)
- Hirotaka Muraoka
- Department of Radiology, Nihon University School of Dentistry at Matsudo 2-870-1 Sakaecho-Nishi, Matsudo, Japan
| | - Takashi Kaneda
- Department of Radiology, Nihon University School of Dentistry at Matsudo 2-870-1 Sakaecho-Nishi, Matsudo, Japan
| | - Takumi Kondo
- Department of Radiology, Nihon University School of Dentistry at Matsudo 2-870-1 Sakaecho-Nishi, Matsudo, Japan
| | - Kohei Otsuka
- Department of Radiology, Nihon University School of Dentistry at Matsudo 2-870-1 Sakaecho-Nishi, Matsudo, Japan
| | - Satoshi Tokunaga
- Department of Radiology, Nihon University School of Dentistry at Matsudo 2-870-1 Sakaecho-Nishi, Matsudo, Japan
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Nonaka H, Sakamoto S, Shiraiwa K, Ishikawa M, Tamura T, Okuno K, Kondo T, Kiyonaka S, Susaki EA, Shimizu C, Ueda HR, Kakegawa W, Arai I, Yuzaki M, Hamachi I. Bioorthogonal chemical labeling of endogenous neurotransmitter receptors in living mouse brains. Proc Natl Acad Sci U S A 2024; 121:e2313887121. [PMID: 38294939 PMCID: PMC10861872 DOI: 10.1073/pnas.2313887121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 12/16/2023] [Indexed: 02/02/2024] Open
Abstract
Neurotransmitter receptors are essential components of synapses for communication between neurons in the brain. Because the spatiotemporal expression profiles and dynamics of neurotransmitter receptors involved in many functions are delicately governed in the brain, in vivo research tools with high spatiotemporal resolution for receptors in intact brains are highly desirable. Covalent labeling by chemical reaction (chemical labeling) of proteins without genetic manipulation is now a powerful method for analyzing receptors in vitro. However, selective target receptor labeling in the brain has not yet been achieved. This study shows that ligand-directed alkoxyacylimidazole (LDAI) chemistry can be used to selectively tether synthetic probes to target endogenous receptors in living mouse brains. The reactive LDAI reagents with negative charges were found to diffuse well over the whole brain and could selectively label target endogenous receptors, including AMPAR, NMDAR, mGlu1, and GABAAR. This simple and robust labeling protocol was then used for various applications: three-dimensional spatial mapping of endogenous receptors in the brains of healthy and disease-model mice; multi-color receptor imaging; and pulse-chase analysis of the receptor dynamics in postnatal mouse brains. Here, results demonstrated that bioorthogonal receptor modification in living animal brains may provide innovative molecular tools that contribute to the in-depth understanding of complicated brain functions.
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Affiliation(s)
- Hiroshi Nonaka
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto615-8510, Japan
- Hamachi Innovative Molecular Technology for Neuroscience, Exploratory Research for Advanced Technology, Japan Science and Technology Agency, Kyoto615-8530, Japan
| | - Seiji Sakamoto
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto615-8510, Japan
- Hamachi Innovative Molecular Technology for Neuroscience, Exploratory Research for Advanced Technology, Japan Science and Technology Agency, Kyoto615-8530, Japan
| | - Kazuki Shiraiwa
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto615-8510, Japan
| | - Mamoru Ishikawa
- Hamachi Innovative Molecular Technology for Neuroscience, Exploratory Research for Advanced Technology, Japan Science and Technology Agency, Kyoto615-8530, Japan
| | - Tomonori Tamura
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto615-8510, Japan
- Hamachi Innovative Molecular Technology for Neuroscience, Exploratory Research for Advanced Technology, Japan Science and Technology Agency, Kyoto615-8530, Japan
| | - Kyohei Okuno
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto615-8510, Japan
| | - Takumi Kondo
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Nagoya464-8603, Japan
| | - Shigeki Kiyonaka
- Hamachi Innovative Molecular Technology for Neuroscience, Exploratory Research for Advanced Technology, Japan Science and Technology Agency, Kyoto615-8530, Japan
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Nagoya464-8603, Japan
| | - Etsuo A. Susaki
- Department of Biochemistry and Systems Biomedicine, Juntendo University Graduate School of Medicine, Tokyo113-8421, Japan
- Laboratory for Synthetic Biology, RIKEN Center for Biosystems Dynamics Research, Osaka 565-5241, Japan
| | - Chika Shimizu
- Laboratory for Synthetic Biology, RIKEN Center for Biosystems Dynamics Research, Osaka 565-5241, Japan
| | - Hiroki R. Ueda
- Laboratory for Synthetic Biology, RIKEN Center for Biosystems Dynamics Research, Osaka 565-5241, Japan
- Department of Systems Pharmacology, Graduate School of Medicine, The University of Tokyo, Tokyo113-0033, Japan
| | - Wataru Kakegawa
- Hamachi Innovative Molecular Technology for Neuroscience, Exploratory Research for Advanced Technology, Japan Science and Technology Agency, Kyoto615-8530, Japan
- Department of Neurophysiology, Keio University School of Medicine, Tokyo160-8582, Japan
| | - Itaru Arai
- Department of Neurophysiology, Keio University School of Medicine, Tokyo160-8582, Japan
| | - Michisuke Yuzaki
- Department of Neurophysiology, Keio University School of Medicine, Tokyo160-8582, Japan
| | - Itaru Hamachi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto615-8510, Japan
- Hamachi Innovative Molecular Technology for Neuroscience, Exploratory Research for Advanced Technology, Japan Science and Technology Agency, Kyoto615-8530, Japan
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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.
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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
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7
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Urata T, Naoi Y, Jiang A, Boyle M, Sunami K, Imai T, Nawa Y, Hiramatsu Y, Yamamoto K, Fujii S, Yoshida I, Yano T, Chijimatsu R, Murakami H, Ikeuchi K, Kobayashi H, Tani K, Ujiie H, Inoue H, Tomida S, Yamamoto A, Kondo T, Fujiwara H, Asada N, Nishimori H, Fujii K, Fujii N, Matsuoka KI, Sawada K, Momose S, Tamaru JI, Nishikori A, Sato Y, Yoshino T, Maeda Y, Scott DW, Ennishi D. Distribution and clinical impact of molecular subtypes with dark zone signature of DLBCL in a Japanese real-world study. Blood Adv 2023; 7:7459-7470. [PMID: 37552496 PMCID: PMC10758740 DOI: 10.1182/bloodadvances.2023010402] [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: 04/12/2023] [Revised: 07/22/2023] [Accepted: 07/24/2023] [Indexed: 08/09/2023] Open
Abstract
The distribution and clinical impact of cell-of-origin (COO) subtypes of diffuse large B-cell lymphoma (DLBCL) outside Western countries remain unknown. Recent literature also suggests that there is an additional COO subtype associated with the germinal center dark zone (DZ) that warrants wider validation to generalize clinical relevance. Here, we assembled a cohort of Japanese patients with untreated DLBCL and determined the refined COO subtypes, which include the DZ signature (DZsig), using the NanoString DLBCL90 assay. To compare the distribution and clinical characteristics of the molecular subtypes, we used a data set from the cohort of British Columbia Cancer (BCC) (n = 804). Through the 1050 patient samples on which DLBCL90 assay was successfully performed in our cohort, 35%, 45%, and 6% of patients were identified to have germinal center B-cell-like (GCB) DLBCL, activated B-cell-like (ABC) DLBCL, and DZsig-positive (DZsigpos) DLBCL, respectively, with the highest prevalence of ABC-DLBCL, differing significantly from the BCC result (P < .001). GCB-DLBCL, ABC-DLBCL, and DZsigpos-DLBCL were associated with 2-year overall survival rates of 88%, 75%, and 66%, respectively (P < .0001), with patients with DZsigpos-DLBCL having the poorest prognosis. In contrast, GCB-DLBCL without DZsig showed excellent outcomes after rituximab-containing immunochemotherapy. DZsigpos-DLBCL was associated with the significant enrichment of tumors with CD10 expression, concurrent MYC/BCL2 expression, and depletion of microenvironmental components (all, P < .05). These results provide evidence of the distinct distribution of clinically relevant molecular subtypes in Japanese DLBCL and that refined COO, as measured by the DLBCL90 assay, is a robust prognostic biomarker that is consistent across geographical areas.
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Affiliation(s)
- Tomohiro Urata
- Department of Hematology, Oncology and Respiratory Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
- Center for Comprehensive Genomic Medicine, Okayama University Hospital, Okayama, Japan
| | - Yusuke Naoi
- Department of Hematology, Oncology and Respiratory Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
- Center for Comprehensive Genomic Medicine, Okayama University Hospital, Okayama, Japan
| | - Aixiang Jiang
- British Columbia Cancer, Centre for Lymphoid Cancer, Vancouver, BC, Canada
| | - Merrill Boyle
- British Columbia Cancer, Centre for Lymphoid Cancer, Vancouver, BC, Canada
| | - Kazutaka Sunami
- Department of Hematology, NHO Okayama Medical Center, Okayama, Japan
| | - Toshi Imai
- Department of Hematology and Blood Transfusion, Kochi Health Sciences Center, Kochi, Japan
| | - Yuichiro Nawa
- Division of Hematology, Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - Yasushi Hiramatsu
- Department of Hematology and Oncology, Japanese Red Cross Society Himeji Hospital, Hyogo, Japan
| | - Kazuhiko Yamamoto
- Department of Hematology and Oncology, Okayama City Hospital, Okayama, Japan
| | - Soichiro Fujii
- Department of Hematology, Japanese Red Cross Okayama Hospital, Okayama, Japan
| | - Isao Yoshida
- Department of Hematologic Oncology, NHO Shikoku Cancer Center, Matsuyama, Japan
| | - Tomofumi Yano
- Department of Internal Medicine, Okayama Rosai Hospital, Okayama, Japan
| | - Ryota Chijimatsu
- Center for Comprehensive Genomic Medicine, Okayama University Hospital, Okayama, Japan
| | - Hiroyuki Murakami
- Department of Hematology, Oncology and Respiratory Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
- Center for Comprehensive Genomic Medicine, Okayama University Hospital, Okayama, Japan
| | - Kazuhiro Ikeuchi
- Department of Hematology, Oncology and Respiratory Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
- Center for Comprehensive Genomic Medicine, Okayama University Hospital, Okayama, Japan
| | - Hiroki Kobayashi
- Department of Hematology, Oncology and Respiratory Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
- Center for Comprehensive Genomic Medicine, Okayama University Hospital, Okayama, Japan
| | - Katsuma Tani
- Department of Hematology, Oncology and Respiratory Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
- Center for Comprehensive Genomic Medicine, Okayama University Hospital, Okayama, Japan
| | - Hideki Ujiie
- Center for Comprehensive Genomic Medicine, Okayama University Hospital, Okayama, Japan
| | - Hirofumi Inoue
- Clinical Genomic Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan
| | - Shuta Tomida
- Center for Comprehensive Genomic Medicine, Okayama University Hospital, Okayama, Japan
| | - Akira Yamamoto
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Takumi Kondo
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Hideaki Fujiwara
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Noboru Asada
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Hisakazu Nishimori
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Keiko Fujii
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Nobuharu Fujii
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Ken-ichi Matsuoka
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Keisuke Sawada
- Department of Pathology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Shuji Momose
- Department of Pathology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Jun-ichi Tamaru
- Department of Pathology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Asami Nishikori
- Department of Molecular Hematopathology, Okayama University Graduate School of Health Sciences, Okayama, Japan
| | - Yasuharu Sato
- Department of Molecular Hematopathology, Okayama University Graduate School of Health Sciences, Okayama, Japan
| | | | - Yoshinobu Maeda
- Department of Hematology, Oncology and Respiratory Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - David W. Scott
- British Columbia Cancer, Centre for Lymphoid Cancer, Vancouver, BC, Canada
| | - Daisuke Ennishi
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
- Center for Comprehensive Genomic Medicine, Okayama University Hospital, Okayama, Japan
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8
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Okuno S, Higo S, Kondo T, Shiba M, Kameda S, Inoue H, Tabata T, Ogawa S, Morishita Y, Sun C, Ishino S, Honda T, Miyagawa S, Sakata Y. SARS-CoV-2 spike receptor-binding domain is internalized and promotes protein ISGylation in human induced pluripotent stem cell-derived cardiomyocytes. Sci Rep 2023; 13:21397. [PMID: 38049441 PMCID: PMC10696029 DOI: 10.1038/s41598-023-48084-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 11/22/2023] [Indexed: 12/06/2023] Open
Abstract
Although an increased risk of myocarditis has been observed after vaccination with mRNA encoding severe acute respiratory syndrome coronavirus 2 spike protein, its underlying mechanism has not been elucidated. This study investigated the direct effects of spike receptor-binding domain (S-RBD) on human cardiomyocytes differentiated from induced pluripotent stem cells (iPSC-CMs). Immunostaining experiments using ACE2 wild-type (WT) and knockout (KO) iPSC-CMs treated with purified S-RBD demonstrated that S-RBD was bound to ACE2 and internalized into the subcellular space in the iPSC-CMs, depending on ACE2. Immunostaining combined with live cell imaging using a recombinant S-RBD fused to the superfolder GFP (S-RBD-sfGFP) demonstrated that S-RBD was bound to the cell membrane, co-localized with RAB5A, and then delivered from the endosomes to the lysosomes in iPSC-CMs. Quantitative PCR array analysis followed by single cell RNA sequence analysis clarified that S-RBD-sfGFP treatment significantly upregulated the NF-kβ pathway-related gene (CXCL1) in the differentiated non-cardiomyocytes, while upregulated interferon (IFN)-responsive genes (IFI6, ISG15, and IFITM3) in the matured cardiomyocytes. S-RBD-sfGFP treatment promoted protein ISGylation, an ISG15-mediated post-translational modification in ACE2-WT-iPSC-CMs, which was suppressed in ACE2-KO-iPSC-CMs. Our experimental study demonstrates that S-RBD is internalized through the endolysosomal pathway, which upregulates IFN-responsive genes and promotes ISGylation in the iPSC-CMs.
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Affiliation(s)
- Shota Okuno
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan
| | - Shuichiro Higo
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan.
- Department of Medical Therapeutics for Heart Failure, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan.
| | - Takumi Kondo
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan
| | - Mikio Shiba
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan
| | - Satoshi Kameda
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan
| | - Hiroyuki Inoue
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan
| | - Tomoka Tabata
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan
| | - Shou Ogawa
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan
| | - Yu Morishita
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan
| | - Congcong Sun
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan
| | - Saki Ishino
- CoMIT Omics Center, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan
| | - Tomoyuki Honda
- Department of Virology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Kita-Ku, Okayama, 700-8558, Japan
- Department of Virology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Kita-Ku, Okayama, 700-8558, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan
| | - Yasushi Sakata
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan
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9
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Ando C, Ichihara E, Nishi T, Morita A, Hara N, Takada K, Nakasuka T, Watanabe H, Kano H, Nishii K, Makimoto G, Kondo T, Ninomiya K, Fujii M, Kubo T, Ohashi K, Matsuoka K, Hotta K, Tabata M, Maeda Y, Kiura K. Efficacy of gilteritinib in comparison with alectinib for the treatment of ALK-rearranged non-small cell lung cancer. Cancer Sci 2023; 114:4343-4354. [PMID: 37715310 PMCID: PMC10637052 DOI: 10.1111/cas.15958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 08/14/2023] [Accepted: 08/21/2023] [Indexed: 09/17/2023] Open
Abstract
Gilteritinib is a multitarget tyrosine kinase inhibitor (TKI), approved for the treatment of FLT3-mutant acute myeloid leukemia, with a broad range of activity against several tyrosine kinases including anaplastic lymphoma kinase (ALK). This study investigated the efficacy of gilteritinib against ALK-rearranged non-small cell lung cancers (NSCLC). To this end, we assessed the effects of gilteritinib on cell proliferation, apoptosis, and acquired resistance responses in several ALK-rearranged NSCLC cell lines and mouse xenograft tumor models and compared its efficacy to alectinib, a standard ALK inhibitor. Gilteritinib was significantly more potent than alectinib, as it inhibited cell proliferation at a lower dose, with complete attenuation of growth observed in several ALK-rearranged NSCLC cell lines and no development of drug tolerance. Immunoblotting showed that gilteritinib strongly suppressed phosphorylated ALK and its downstream effectors, as well as mesenchymal-epithelial transition factor (MET) signaling. By comparison, MET signaling was enhanced in alectinib-treated cells. Furthermore, gilteritinib was found to more effectively abolish growth of ALK-rearranged NSCLC xenograft tumors, many of which completely receded. Interleukin-15 (IL-15) mRNA levels were elevated in gilteritinib-treated cells, together with a concomitant increase in the infiltration of tumors by natural killer (NK) cells, as assessed by immunohistochemistry. This suggests that IL-15 production along with NK cell infiltration may constitute components of the gilteritinib-mediated antitumor responses in ALK-rearranged NSCLCs. In conclusion, gilteritinib demonstrated significantly improved antitumor efficacy compared with alectinib against ALK-rearranged NSCLC cells, which can warrant its candidacy for use in anticancer regimens, after further examination in clinical trial settings.
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Affiliation(s)
- Chihiro Ando
- Department of Hematology, Oncology and Respiratory MedicineOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaJapan
| | - Eiki Ichihara
- Department of Allergy and Respiratory MedicineOkayama University HospitalOkayamaJapan
| | - Tatsuya Nishi
- Department of Hematology, Oncology and Respiratory MedicineOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaJapan
| | - Ayako Morita
- Department of Hematology, Oncology and Respiratory MedicineOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaJapan
| | - Naofumi Hara
- Department of Hematology, Oncology and Respiratory MedicineOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaJapan
| | - Kenji Takada
- Department of Hematology, Oncology and Respiratory MedicineOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaJapan
| | - Takamasa Nakasuka
- Department of Hematology, Oncology and Respiratory MedicineOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaJapan
| | - Hiromi Watanabe
- Department of Hematology, Oncology and Respiratory MedicineOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaJapan
| | - Hirohisa Kano
- Department of Hematology, Oncology and Respiratory MedicineOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaJapan
| | - Kazuya Nishii
- Department of Hematology, Oncology and Respiratory MedicineOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaJapan
| | - Go Makimoto
- Center for Clinical OncologyOkayama University HospitalOkayamaJapan
| | - Takumi Kondo
- Department of Hematology and OncologyOkayama University HospitalOkayamaJapan
| | - Kiichiro Ninomiya
- Department of Allergy and Respiratory MedicineOkayama University HospitalOkayamaJapan
| | - Masanori Fujii
- Department of Allergy and Respiratory MedicineOkayama University HospitalOkayamaJapan
| | - Toshio Kubo
- Department of Allergy and Respiratory MedicineOkayama University HospitalOkayamaJapan
| | - Kadoaki Ohashi
- Department of Allergy and Respiratory MedicineOkayama University HospitalOkayamaJapan
| | - Ken‐ichi Matsuoka
- Department of Hematology, Oncology and Respiratory MedicineOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaJapan
| | - Katsuyuki Hotta
- Center for Innovative Clinical MedicineOkayama University HospitalOkayamaJapan
| | - Masahiro Tabata
- Center for Clinical OncologyOkayama University HospitalOkayamaJapan
| | - Yoshinobu Maeda
- Department of Hematology, Oncology and Respiratory MedicineOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaJapan
| | - Katsuyuki Kiura
- Department of Allergy and Respiratory MedicineOkayama University HospitalOkayamaJapan
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10
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Montisci R, Licciardi M, Cecchi R, Kondo T, Gerosa G, Casula R, Cecchetto G, Montisci M. Malpratice claims in cardiology and cardiac surgery: A medico-legal issue. Leg Med (Tokyo) 2023; 65:102319. [PMID: 37696211 DOI: 10.1016/j.legalmed.2023.102319] [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: 04/21/2023] [Revised: 07/25/2023] [Accepted: 08/21/2023] [Indexed: 09/13/2023]
Abstract
Medical liability has become a challenge in every physician's modern practice with the consequent loss of the physician's autonomy and an increase in "defensive medicine". From this perspective, the role of Legal Medicine in assessing medical liability has become increasingly specific and a homogenization of the methods of ascertainment is increasingly necessary, since such a process can contribute to strengthening the guarantees in professional liability procedures. Focusing on malpractice claims in the field of cardiology, the complexity of the management of cardiac pathologies and the frequency of severe adverse events implies the importance of a multi-disciplinary approach, together with the application of a shared ascertainment methodology. In particular, it is essential for the forensic pathologist to collaborate with experts in cardio-pathology, cardiology and/or cardiac surgery in cases of alleged medical liability in the cardiologic field and to follow the guidelines which have been produced to assist the expert dealing with deaths reflecting cardiac disease, in order to prevent criticism of case analysis in medico-legal environments and to promote the standardization of the structure of the juridical-legislative medical malpractice lawsuits.
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Affiliation(s)
- R Montisci
- Cardiac Surgery Unit, Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - M Licciardi
- Cardiac Surgery Unit, Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - R Cecchi
- Institute of Legal Medicine, Department of Medicine and Surgery, University of Parma, Italy.
| | - T Kondo
- Institute of Legal Medicine, Wakayama Medical University School of Medicine Graduate School of Medicine, Japan
| | - G Gerosa
- Department of Cardiothoracic Surgery, Imperial College Healthcare NHS Trust, Hammersmith Hospital, London, UK
| | - R Casula
- Clinical Cardiology, Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - G Cecchetto
- Legal Medicine and Toxicology Unit, Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - M Montisci
- Legal Medicine and Toxicology Unit, Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua, Padua, Italy
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11
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Sumii Y, Fujii K, Kondo T, Urata T, Kimura M, Fujiwara H, Asada N, Ennishi D, Nishimori H, Matsuoka KI, Otsuka F, Maeda Y, Fujii N. Evaluating the efficiency and safety of large-volume leukapheresis using the Spectra Optia continuous mononuclear cell collection protocol for peripheral blood stem cell collection from healthy donors: A retrospective study. Transfusion 2023; 63:2120-2130. [PMID: 37792312 DOI: 10.1111/trf.17563] [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: 03/31/2023] [Revised: 09/01/2023] [Accepted: 09/04/2023] [Indexed: 10/05/2023]
Abstract
BACKGROUND Large-volume leukapheresis (LVL) refers to processing of more than three volumes of blood in a single session for peripheral blood stem cell collection. Recently, continuous mononuclear cell collection (cMNC) protocol has been developed using the Spectra Optia system, which is a widely used apheresis device. LVL using the novel protocol has been investigated in patients. However, the efficiency and safety of LVL in healthy donors using this protocol has not been characterized. Therefore, this study aimed to evaluate the efficiency and tolerability of CD34+ collection of LVL with the cMNC protocol in healthy donors. STUDY DESIGN AND METHODS We retrospectively collected data on LVL (>3 total blood volume) and normal-volume leukapheresis (NVL) performed in healthy donors between October 2019 and December 2021. All procedures were performed using the cMNC protocol. RESULTS Although pre-apheresis CD34+ cell count was lesser in LVL (23.5 vs. 58.0/μL, p < .001), CD34+ collection efficiency was comparable between LVL and NVL (61.2% vs. 61.4%, p = .966). Platelet loss was significantly higher in LVL compared to NVL (38.0% vs. 29.4%, p < .001), with no correlation between attrition of platelet and processing blood volume. Moreover, the incidence of citrate toxicity during procedures was comparable between the two groups (31.6% vs. 21.4%, p = .322). All LVL procedures could be completed without any adverse events. CONCLUSION Allogeneic LVL procedure using Spectra Optia cMNC protocol was well tolerated by the donors and resulted in efficient collection of CD34+ cells, which was comparable to that of NVL.
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Affiliation(s)
- Yuichi Sumii
- Division of Blood Transfusion, Okayama University Hospital, Okayama, Japan
- Department of Hematology, Oncology and Respiratory Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Keiko Fujii
- Division of Clinical Laboratory, Okayama University Hospital, Okayama, Japan
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Takumi Kondo
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Tomohiro Urata
- Division of Blood Transfusion, Okayama University Hospital, Okayama, Japan
- Department of Hematology, Oncology and Respiratory Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Maiko Kimura
- Division of Blood Transfusion, Okayama University Hospital, Okayama, Japan
- Department of Hematology, Oncology and Respiratory Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Hideaki Fujiwara
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Noboru Asada
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Daisuke Ennishi
- Department of Hematology, Oncology and Respiratory Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- Center for Comprehensive Genomic Medicine, Okayama University Hospital, Okayama, Japan
| | - Hisakazu Nishimori
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Ken-Ichi Matsuoka
- Department of Hematology, Oncology and Respiratory Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Fumio Otsuka
- Division of Clinical Laboratory, Okayama University Hospital, Okayama, Japan
- Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Yoshinobu Maeda
- Department of Hematology, Oncology and Respiratory Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Nobuharu Fujii
- Division of Blood Transfusion, Okayama University Hospital, Okayama, Japan
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
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12
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Nishikawa T, Shiba M, Ikeda Y, Ohta-Ogo K, Kondo T, Tabata T, Oka T, Shioyama W, Yamamoto H, Yasui T, Higuchi Y, Ishibashi-Ueda H, Honma K, Izumi C, Higo S, Hatakeyama K, Sakata Y, Fujita M. Tenascin-C as a potential marker for immunohistopathology of doxorubicin-induced cardiomyopathy. Eur Heart J Open 2023; 3:oead104. [PMID: 37908440 PMCID: PMC10613965 DOI: 10.1093/ehjopen/oead104] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 09/09/2023] [Accepted: 10/06/2023] [Indexed: 11/02/2023]
Abstract
Aims Doxorubicin is used in classical chemotherapy for several cancer types. Doxorubicin-induced cardiomyopathy (DOX-CM) is a critical issue among cancer patients. However, differentiating the diagnosis of DOX-CM from that of other cardiomyopathies is difficult. Therefore, in this study, we aimed to determine novel histopathological characteristics to diagnose DOX-CM. Methods and results Twelve consecutive patients with DOX-CM who underwent cardiac histopathological examination in two medical centres were included. Twelve patients with dilated cardiomyopathy, who were matched with DOX-CM patients in terms of age, sex, and left ventricular ejection fraction, formed the control group. Another control group comprised five consecutive patients with cancer therapy-related cardiac dysfunction induced by tyrosine kinase inhibitors or vascular endothelial growth factor inhibitors were the controls. The positive area of tenascin-C, number of infiltrating macrophages, and presence of p62- and ubiquitin-positive cardiomyocytes were evaluated. Human-induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) were used for in vitro investigation. The myocardium exhibited significantly greater tenascin-C-positive area and macrophage number in the DOX-CM group than in the control groups (P < 0.01). The tenascin-C-positive area correlated with the number of both CD68- and CD163-positive cells (r = 0.748 and r = 0.656, respectively). Immunostaining for p62 was positive in 10 (83%) patients with DOX-CM. Furthermore, western blotting analysis revealed significant increase in tenascin-C levels in hiPSC-CMs upon doxorubicin treatment (P < 0.05). Conclusion The combined histopathological assessment for tenascin-C, macrophages, and p62/ubiquitin may serve as a novel tool for the diagnosis of DOX-CM. Doxorubicin may directly affect the expression of tenascin-C in the myocardium.
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Affiliation(s)
- Tatsuya Nishikawa
- Department of Onco-Cardiology, Osaka International Cancer Institute, 3-1-69, Otemae, Chuo-ku, Osaka City, Osaka 541-8567, Japan
- Department of Cardiovascular Medicine, Akashi Medical Center, Hyogo, Japan
| | - Mikio Shiba
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
- Cardiovascular Division, Osaka Police Hospital, Osaka, Japan
| | - Yoshihiko Ikeda
- Department of Pathology, National Cerebral and Cardiovascular Center, 6-1, Kishibeshinmachi, Suita, Osaka 564-8565, Japan
| | - Keiko Ohta-Ogo
- Department of Pathology, National Cerebral and Cardiovascular Center, 6-1, Kishibeshinmachi, Suita, Osaka 564-8565, Japan
| | - Takumi Kondo
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Tomoka Tabata
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Toru Oka
- Department of Onco-Cardiology, Osaka International Cancer Institute, 3-1-69, Otemae, Chuo-ku, Osaka City, Osaka 541-8567, Japan
- Onco-Cardiology Unit, Department of Internal Medicine, Saitama Cancer Center, Saitama, Japan
| | - Wataru Shioyama
- Department of Internal Medicine, Division of Cardiovascular Medicine, Shiga University of Medical Science, Shiga, Japan
| | - Hironori Yamamoto
- Department of Onco-Cardiology, Osaka International Cancer Institute, 3-1-69, Otemae, Chuo-ku, Osaka City, Osaka 541-8567, Japan
| | - Taku Yasui
- Department of Onco-Cardiology, Osaka International Cancer Institute, 3-1-69, Otemae, Chuo-ku, Osaka City, Osaka 541-8567, Japan
| | | | - Hatsue Ishibashi-Ueda
- Department of Pathology, National Cerebral and Cardiovascular Center, 6-1, Kishibeshinmachi, Suita, Osaka 564-8565, Japan
- Department of Pathology, Hokusetsu General Hospital, Takatsuki, Osaka, Japan
| | - Keiichiro Honma
- Department of Pathology, Osaka International Cancer Institute, Osaka, Japan
| | - Chisato Izumi
- Department of Heart Failure and Transplantation, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Shuichiro Higo
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
- Department of Medical Therapeutics for Heart Failure, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Kinta Hatakeyama
- Department of Pathology, National Cerebral and Cardiovascular Center, 6-1, Kishibeshinmachi, Suita, Osaka 564-8565, Japan
| | - Yasushi Sakata
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Masashi Fujita
- Department of Onco-Cardiology, Osaka International Cancer Institute, 3-1-69, Otemae, Chuo-ku, Osaka City, Osaka 541-8567, Japan
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13
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Kondo T, Iguchi M, Yoshida S, Yoshino T, Kojima K. Cyclin D2-positive mantle cell lymphoma with t(2;12)(p12;p13) arising in immune deficiency/dysregulation. Ann Hematol 2023; 102:2639-2640. [PMID: 37351683 DOI: 10.1007/s00277-023-05330-2] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 06/17/2023] [Indexed: 06/24/2023]
Affiliation(s)
- Takumi Kondo
- Department of Hematology, Kochi Medical School, Kochi University, Nankoku, Kochi, Japan
| | - Mitsuko Iguchi
- Department of Pathology, Kochi Medical School, Kochi University, Nankoku, Kochi, Japan
| | - Shohei Yoshida
- Department of Hematology, Kochi Medical School, Kochi University, Nankoku, Kochi, Japan
| | - Tadashi Yoshino
- Department of Pathology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Kensuke Kojima
- Department of Hematology, Kochi Medical School, Kochi University, Nankoku, Kochi, Japan.
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14
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Iwamuro M, Kondo T, Ennishi D, Fujii N, Matsuoka KI, Takahashi T, Hirabata A, Tanaka T, Otsuka F, Maeda Y, Okada H. Feasibility of Flow Cytometry Analysis of Gastrointestinal Tract-Residing Lymphocytes in Hematopoietic Stem Cell Transplant Recipients. Acta Med Okayama 2023; 77:347-357. [PMID: 37635134 DOI: 10.18926/amo/65740] [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] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
Abstract
The feasibility of lymphocyte isolation and flow cytometry using a single endoscopic biopsy specimen from the gastrointestinal tract of patients who have undergone hematopoietic stem cell transplantation has not been investigated. We acquired 51 endoscopic biopsy specimens from the gastrointestinal tract of 35 patients. We divided the flow cytometry samples into two groups: group A, successful lymphocyte isolation (n=24), and group B, incomplete isolation (n=27). We compared the backgrounds of the samples between the groups to reveal crucial elements in the successful isolation of lymphocytes residing in the gastrointestinal tract. Comparison between the groups revealed lymphocyte isolation success rates differed between biopsy sites. Isolation was most successful in samples from the duodenum (8/9, 88.9%), followed by the ileum (4/8, 50.0%), large intestine (4/11, 36.4%), and stomach (8/23, 34.8%). Tacrolimus was used more frequently in group B (92.6%) than in group A (62.5%) (p=0.015). Logistic regression analysis revealed that isolation from the duodenum or ileum was a significant factor for successful isolation, while tacrolimus use was not statistically significant. In conclusion, the duodenum and ileum are more suitable sites than the stomach and colorectum for acquiring samples for flow cytometry.
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Affiliation(s)
- Masaya Iwamuro
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Takumi Kondo
- Department of Hematology and Oncology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Daisuke Ennishi
- Department of Hematology and Oncology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Nobuharu Fujii
- Department of Hematology and Oncology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Ken-Ichi Matsuoka
- Department of Hematology and Oncology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | | | - Araki Hirabata
- Division of Medical Support, Okayama University Hospital
| | - Takehiro Tanaka
- Department of Pathology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Fumio Otsuka
- Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Yoshinobu Maeda
- Department of Hematology and Oncology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Hiroyuki Okada
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
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15
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Fujita H, Kaneshiro J, Takeda M, Sasaki K, Yamamoto R, Umetsu D, Kuranaga E, Higo S, Kondo T, Asano Y, Sakata Y, Miyagawa S, Watanabe TM. Estimation of crossbridge-state during cardiomyocyte beating using second harmonic generation. Life Sci Alliance 2023; 6:e202302070. [PMID: 37236659 PMCID: PMC10215972 DOI: 10.26508/lsa.202302070] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 04/21/2023] [Accepted: 04/21/2023] [Indexed: 05/28/2023] Open
Abstract
Estimation of dynamic change of crossbridge formation in living cardiomyocytes is expected to provide crucial information for elucidating cardiomyopathy mechanisms, efficacy of an intervention, and others. Here, we established an assay system to dynamically measure second harmonic generation (SHG) anisotropy derived from myosin filaments depended on their crossbridge status in pulsating cardiomyocytes. Experiments utilizing an inheritable mutation that induces excessive myosin-actin interactions revealed that the correlation between sarcomere length and SHG anisotropy represents crossbridge formation ratio during pulsation. Furthermore, the present method found that ultraviolet irradiation induced an increased population of attached crossbridges that lost the force-generating ability upon myocardial differentiation. Taking an advantage of infrared two-photon excitation in SHG microscopy, myocardial dysfunction could be intravitally evaluated in a Drosophila disease model. Thus, we successfully demonstrated the applicability and effectiveness of the present method to evaluate the actomyosin activity of a drug or genetic defect on cardiomyocytes. Because genomic inspection alone may not catch the risk of cardiomyopathy in some cases, our study demonstrated herein would be of help in the risk assessment of future heart failure.
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Affiliation(s)
- Hideaki Fujita
- Department of Stem Cell Biology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Junichi Kaneshiro
- Laboratory for Comprehensive Bioimaging, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Maki Takeda
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kensuke Sasaki
- Laboratory for Comprehensive Bioimaging, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Rikako Yamamoto
- Department of Stem Cell Biology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Daiki Umetsu
- Laboratory for Histogenetic Dynamics, Graduate School of Life Sciences, Tohoku University, Sendai, Japan
- Department of Biological Sciences, Graduate School of Science, Osaka University, Osaka, Japan
| | - Erina Kuranaga
- Laboratory for Histogenetic Dynamics, Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Shuichiro Higo
- Department of Medical Therapeutics for Heart Failure, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Takumi Kondo
- Department of Medical Therapeutics for Heart Failure, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yoshihiro Asano
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yasushi Sakata
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Tomonobu M Watanabe
- Department of Stem Cell Biology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
- Laboratory for Comprehensive Bioimaging, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
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Muraoka H, Kaneda T, Hirahara N, Ito K, Okada S, Kondo T. Diagnostic Efficacy of Diffusion-weighted Imaging in Distinguishing Chronic Diffuse Sclerosing Osteomyelitis from Suppurative Osteomyelitis of the Mandible. Magn Reson Med Sci 2023; 22:283-288. [PMID: 35283395 PMCID: PMC10449550 DOI: 10.2463/mrms.mp.2021-0153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 01/22/2022] [Indexed: 08/26/2023] Open
Abstract
PURPOSE Chronic diffuse sclerosing osteomyelitis (CDSO) is a non-suppurative inflammatory bone disease diagnosed based on combined clinical, histopathological, and radiological findings. Accurate diagnosis is important since CDSO is more refractory to treatment than suppurative osteomyelitis. The purpose of this study was to determine the diagnostic efficacy of diffusion-weighted imaging (DWI) in the quantitative assessment of CDSO to distinguish it from acute suppurative osteomyelitis (ASO) and chronic suppurative osteomyelitis (CSO) of the mandible. METHODS Using a retrospective cohort study design, we analyzed MRI data of 6 patients with CDSO and 34 patients with ASO and CSO. The mean apparent diffusion coefficient (ADC) values of the three groups (CDSO, ASO, and CSO groups) were calculated, and differences were analyzed using Kruskal-Wallis and post-hoc Mann-Whitney tests with Bonferroni adjustments. We performed a receiver operating characteristic (ROC) curve analysis to evaluate the ability of the ADC to predict CDSO. P < 0.05 was considered statistically significant. RESULTS The mean ADCs in the CDSO, ASO, and CSO groups were 1.22 ± 0.04 × 10-3 mm2/s, 1.28 ± 0.08 × 10-3 mm2/s, and 1.06 ± 0.09 × 10-3 mm2/s, respectively. Significant differences were observed between the ASO and CSO groups (P < 0.001) and CSO and CDSO groups (P < 0.01). However, there was no significant difference between the ASO and CDSO groups (P = 0.21). The ROC analysis revealed a cut-off ADC value of 1.19 for distinguishing the CSO group from the CDSO group. Sensitivity, specificity, accuracy, and area under the ROC curve were 1.0, 0.92, 0, 95, and 0.94, respectively. CONCLUSION The results suggest that ADC may be useful in distinguishing CDSO from mandibular suppurative osteomyelitis.
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Affiliation(s)
- Hirotaka Muraoka
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, Japan
| | - Takashi Kaneda
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, Japan
| | - Naohisa Hirahara
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, Japan
| | - Kotaro Ito
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, Japan
| | - Shunya Okada
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, Japan
| | - Takumi Kondo
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, Japan
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17
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Kondo T, Fujii K, Fujii N, Sumii Y, Urata T, Kimura M, Matsuda M, Ikegawa S, Washio K, Fujiwara H, Asada N, Ennishi D, Nishimori H, Matsuoka KI, Otsuka F, Maeda Y. Efficient granulocyte collection method using high concentrations of medium molecular weight hydroxyethyl starch. Transfusion 2023. [PMID: 37293978 DOI: 10.1111/trf.17450] [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: 08/28/2022] [Revised: 04/13/2023] [Accepted: 04/22/2023] [Indexed: 06/10/2023]
Abstract
BACKGROUND Granulocyte transfusion therapy is a rational therapeutic option for patients with prolonged, severe neutropenia. Although high molecular weight hydroxyethyl starch (hHES) facilitates the separation of red blood cells during granulocyte collection, renal dysfunction has been noted as a potential side effect. HES130/0.4 (Voluven®) is a medium molecular weight HES (mHES) with superior safety profiles compared to hHES. Although HES130/0.4 is reportedly effective in the collection of granulocytes, we lack studies comparing the efficiency of granulocyte collection using HES130/0.4 and hHES. STUDY DESIGN AND METHODS We retrospectively collected the data from 60 consecutive apheresis procedures performed on 40 healthy donors at the Okayama University Hospital between July 2013 and December 2021. All procedures were performed using the Spectra Optia system. Based on the HES130/0.4 concentration in the separation chamber, granulocyte collection methods using HES130/0.4 were classified into m0.46, m0.44, m0.37, and m0.8 groups. We used HES130/0.4 and hHES groups to compare the various sample collection methods. RESULTS The median granulocyte collection efficiency (CE) was approximately 24.0% and 28.1% in the m0.8 and hHES groups, respectively, which were significantly higher than those in the m0.46, m0.44, and m0.37 groups. One month following granulocyte collection with HES130/0.4, no significant changes were observed in serum creatinine levels compared to those before the donation. CONCLUSION Therefore, we propose a granulocyte collection approach employing HES130/0.4, which is comparable to the use of hHES in terms of the granulocyte CE. A high concentration of HES130/0.4 in the separation chamber was considered crucial for granulocyte collection.
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Affiliation(s)
- Takumi Kondo
- Division of Transfusion, Okayama University Hospital, Okayama, Japan
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Keiko Fujii
- Division of Clinical Laboratory, Okayama University Hospital, Okayama, Japan
| | - Nobuharu Fujii
- Division of Transfusion, Okayama University Hospital, Okayama, Japan
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Yuichi Sumii
- Division of Transfusion, Okayama University Hospital, Okayama, Japan
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Tomohiro Urata
- Division of Transfusion, Okayama University Hospital, Okayama, Japan
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Maiko Kimura
- Division of Transfusion, Okayama University Hospital, Okayama, Japan
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Masayuki Matsuda
- Division of Transfusion, Okayama University Hospital, Okayama, Japan
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Shuntaro Ikegawa
- Division of Transfusion, Okayama University Hospital, Okayama, Japan
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Kana Washio
- Department of Pediatrics/Pediatric Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Hideaki Fujiwara
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Noboru Asada
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Daisuke Ennishi
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
- Center for Comprehensive Genomic Medicine, Okayama University Hospital, Okayama, Japan
| | - Hisakazu Nishimori
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Ken-Ichi Matsuoka
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Fumio Otsuka
- Division of Clinical Laboratory, Okayama University Hospital, Okayama, Japan
- Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Yoshinobu Maeda
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
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18
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Sumii Y, Kondo T, Ikegawa S, Fukumi T, Iwamoto M, Nishimura MF, Sugiura H, Sando Y, Nakamura M, Meguri Y, Matsushita T, Tanimine N, Kimura M, Asada N, Ennishi D, Maeda Y, Matsuoka KI. Hematopoietic stem cell-derived Tregs are essential for maintaining favorable B cell lymphopoiesis following posttransplant cyclophosphamide. JCI Insight 2023; 8:162180. [PMID: 37092551 DOI: 10.1172/jci.insight.162180] [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: 05/26/2022] [Accepted: 03/08/2023] [Indexed: 04/25/2023] Open
Abstract
Posttransplant cyclophosphamide (PTCy) is associated with a low incidence of chronic graft-versus-host disease (cGVHD) following hematopoietic stem cell (HSC) transplantation. Previous studies have shown the important roles of B cell immunity in cGVHD development. Here, we investigated the long-term reconstitution of B lymphopoiesis after PTCy using murine models. We first demonstrated that the immune homeostatic abnormality leading to cGVHD is characterized by an initial increase in effector T cells in the bone marrow and subsequent B and Treg cytopenia. PTCy, but not cyclosporine A or rapamycin, inhibits the initial alloreactive T cell response, which restores intra-bone marrow B lymphogenesis with a concomitant vigorous increase in Tregs. This leads to profound changes in posttransplant B cell homeostasis, including decreased B cell activating factors, increased transitional and regulatory B cells, and decreased germinal center B cells. To identify the cells responsible for PTCy-induced B cell tolerance, we selectively depleted Treg populations that were graft or HSC derived using DEREG mice. Deletion of either Treg population without PTCy resulted in critical B cytopenia. PTCy rescued B lymphopoiesis from graft-derived Treg deletion. In contrast, the negative effect of HSC-derived Treg deletion could not be overcome by PTCy, indicating that HSC-derived Tregs are essential for maintaining favorable B lymphopoiesis following PTCy. These findings define the mechanisms by which PTCy restores homeostasis of the B cell lineage and reestablishes immune tolerance.
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Affiliation(s)
- Yuichi Sumii
- Department of Hematology, Oncology and Respiratory Medicine and
| | - Takumi Kondo
- Department of Hematology, Oncology and Respiratory Medicine and
| | | | - Takuya Fukumi
- Department of Hematology, Oncology and Respiratory Medicine and
| | - Miki Iwamoto
- Department of Hematology, Oncology and Respiratory Medicine and
| | - Midori Filiz Nishimura
- Department of Pathology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | | | - Yasuhisa Sando
- Department of Hematology, Oncology and Respiratory Medicine and
| | - Makoto Nakamura
- Department of Hematology, Oncology and Respiratory Medicine and
| | - Yusuke Meguri
- Department of Hematology, Oncology and Respiratory Medicine and
| | - Takashi Matsushita
- Department of Dermatology, Faculty of Medicine, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Naoki Tanimine
- Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Maiko Kimura
- Department of Hematology, Oncology and Respiratory Medicine and
| | - Noboru Asada
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Daisuke Ennishi
- Department of Hematology, Oncology and Respiratory Medicine and
| | - Yoshinobu Maeda
- Department of Hematology, Oncology and Respiratory Medicine and
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Muraoka H, Kaneda T, Kondo T, Tokunaga S. Central vascular malformations of the mandible: Characteristic findings in computed tomography and magnetic resonance imaging. Oral Surg Oral Med Oral Pathol Oral Radiol 2023:S2212-4403(23)00432-7. [PMID: 37202282 DOI: 10.1016/j.oooo.2023.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/27/2023] [Accepted: 04/07/2023] [Indexed: 05/20/2023]
Abstract
Central vascular malformations (CVMs) of the mandible are rare and can have varied clinical and radiological characteristics, thus making differential diagnosis difficult. We retrospectively reviewed 5 patients with proven CVM who underwent computed tomography (CT) and magnetic resonance imaging (MRI), including diffusion-weighted imaging (DWI) (and magnetic resonance angiography (MRA) for one patient), to assess the characteristic imaging findings of this lesion. CT revealed multilocularity in 3 lesions. All CVMs produced fine, irregular borders and low-to-intermediate density. Lesion continuity with the mandibular canal was discovered in 4 cases and enlarged feeding and outflow vessels in 3 lesions. Bone overgrowth was observed in 2 patients. CT values ranged from 30.84 to 52.87 Hounsfield units (HU). MRI exhibited low to intermediate signals on T1-weighted imaging (T1WI), signals ranging from low to intermediate-to-high on T2WI, and low to high signal intensity on short-tau inversion recovery (STIR) images, with flow voids in all patients and no inflammation in surrounding tissues. As calculated with DWI, the apparent diffusion coefficient (ADC) ranged from 0.69 to 1.74 × 10-3 mm2/s. MRA showed the presence of feeding vessels in 1 lesion. Interexaminer agreement on image interpretation ranged from moderate to excellent. These typical CVM imaging findings may aid in the differential diagnosis of this lesion.
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Affiliation(s)
- Hirotaka Muraoka
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba 271-8587, Japan.
| | - Takashi Kaneda
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba 271-8587, Japan
| | - Takumi Kondo
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba 271-8587, Japan
| | - Satoshi Tokunaga
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba 271-8587, Japan
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20
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Muraoka H, Kaneda T, Kondo T, Okada S, Tokunaga S. Differential diagnosis of parotid gland tumors using apparent diffusion coefficient, texture features, and their combination. Dentomaxillofac Radiol 2023; 52:20220404. [PMID: 37015250 PMCID: PMC10170173 DOI: 10.1259/dmfr.20220404] [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: 11/29/2022] [Revised: 02/10/2023] [Accepted: 02/16/2023] [Indexed: 04/06/2023] Open
Abstract
OBJECTIVES Warthin's tumors (WT) and pleomorphic adenomas (PA) are the commonest parotid gland tumors; however, their differentiation remains difficult. This study aimed to investigate the utility of the apparent diffusion coefficient (ADC) value, texture features, and their combination for the differential diagnosis of parotid gland tumors. METHODS Patients who underwent magnetic resonance imaging (MRI) between April 2008 and March 2021 for parotid gland tumors were included and divided into two groups according to the tumor type: WT and PA. The tumor types were used as predictor variables, while the ADC value, texture features, and their combination were the outcome variables. Texture features were measured on short tau inversion recovery (STIR) images and selected using the Fisher's coefficient method and probability of error, and average correlation coefficients. The Mann-Whitney U-test was used to analyze bivariate statistics. Receiver operating characteristic curve analysis was used to assess the ability of the ADC value, texture features, and their combination to distinguishing between the two tumor types. RESULTS A total of 22 patients were included, 11 in each group. The ADC value, 10 texture features, and their combination were significantly different between the two groups (p < .001). Moreover, all three variables had high area under the curve values of 0.93-0.96. CONCLUSION The ADC value, texture features, and their combination demonstrated good diagnostic ability to distinguish between WTs and PAs. This method may be used to aid the differential diagnosis of parotid gland tumors, thereby promoting timely and adequate treatment.
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Affiliation(s)
- Hirotaka Muraoka
- Department of Radiology, Nihon University School of Dentistry at Matsudo 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, Japan
| | - Takashi Kaneda
- Department of Radiology, Nihon University School of Dentistry at Matsudo 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, Japan
| | - Takumi Kondo
- Department of Radiology, Nihon University School of Dentistry at Matsudo 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, Japan
| | - Shunya Okada
- Department of Radiology, Nihon University School of Dentistry at Matsudo 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, Japan
| | - Satoshi Tokunaga
- Department of Radiology, Nihon University School of Dentistry at Matsudo 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, Japan
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21
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Muraoka H, Kaneda T, Ito K, Hirahara N, Kondo T, Tokunaga S. Quantitative analysis of masticatory muscle changes by Eichner index using diffusion-weighted imaging. Oral Radiol 2023; 39:437-445. [PMID: 36138256 DOI: 10.1007/s11282-022-00656-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 09/09/2022] [Indexed: 11/28/2022]
Abstract
OBJECTIVES Diffusion-weighted imaging (DWI) provides quantitative functional information about the microscopic movement of water at the cellular level. However, few reports have quantitatively evaluated histological changes in masticatory muscles due to changes in occlusal relationships using DWI. This study aimed to assess the changes in masticatory muscles by Eichner index using DWI. METHODS We analyzed magnetic resonance imaging (MRI) studies of 201 patients from November 2017 to April 2018. Each Eichner index group, age, and sex were used as criterion variables, and the average apparent diffusion coefficient (ADC) values of the masticatory muscles were the explanatory variable. The mean ADC value differences were analyzed in each Eichner index group. We analyzed the data using the Kruskal-Wallis test and post hoc Mann-Whitney test with Bonferroni adjustment multiple regression analysis with Shapiro-Wilk test and Spearman's correlation coefficients. P < 0.05 was considered statistically significant. RESULTS The mean ADC values of each Eichner classification group were significantly different, with the lowest value in group C (P < 0.001). There was a negative correlation between the ADC value of the masseter, lateral pterygoid muscle, and age (P < 0.001). There were significant differences between the sex groups (P < 0.001). CONCLUSIONS ADC values of masticatory muscles were significantly different in the Eichner index groups. The ADC values of masticatory muscles may be useful for the quantitative evaluation of the masticatory muscles affected by the occlusal state.
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Affiliation(s)
- Hirotaka Muraoka
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, 271-8587, Japan.
| | - Takashi Kaneda
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, 271-8587, Japan
| | - Kotaro Ito
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, 271-8587, Japan
| | - Naohisa Hirahara
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, 271-8587, Japan
| | - Takumi Kondo
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, 271-8587, Japan
| | - Satoshi Tokunaga
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, 271-8587, Japan
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Feng X, He S, Sato T, Kondo T, Uema K, Sato K, Kobayashi H. Enrichment of hydrogen-oxidizing bacteria using a hybrid biological-inorganic system. J Biosci Bioeng 2023; 135:250-257. [PMID: 36650080 DOI: 10.1016/j.jbiosc.2022.12.011] [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: 09/29/2022] [Revised: 12/06/2022] [Accepted: 12/23/2022] [Indexed: 01/19/2023]
Abstract
Hybrid biological-inorganic (HBI) systems comprising inorganic water-splitting catalysts and aerobic hydrogen-oxidizing bacteria (HOB) have previously been used for CO2 conversion. In order to identify new biocatalysts for CO2 conversion, the present study used an HBI system to enrich HOB directly from environmental samples. Three sediment samples (from a brackish water pond, a beach, and a tide pool) and two activated sludge samples (from two separate sewage plants) were inoculated into HBI systems using a cobalt phosphorus (Co-P) alloy and cobalt phosphate (CoPi) as inorganic catalysts with a fixed voltage of 2.0 V. The gas composition of the reactor headspaces and electric current were monitored. An aliquot of the reactor medium was transferred to a new reactor when significant consumption of H2 and CO2 was detected. This process was repeated twice (with three reactors in operation for each sample) to enrich HOB. Increased biomass concomitant with increased H2 and CO2 consumption was observed in the third reactor, indicating enrichment of HOB. 16S rRNA gene amplicon sequencing demonstrated enrichment of sequences related to HOB (including bacteria from Mycobacterium, Hydrogenophaga, and Xanthobacter genera) over successive sub-cultures. Finally, four different HOB belonging to the Mycobacterium, Hydrogenophaga, Xanthobacter, and Acidovorax genera were isolated from reactor media, representing potential candidates as HBI system biocatalysts.
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Affiliation(s)
- Xiang Feng
- Department of Systems Innovation, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Sijia He
- Department of Systems Innovation, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Taiki Sato
- Department of Systems Innovation, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Takumi Kondo
- Department of Systems Innovation, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Koyo Uema
- Department of Systems Innovation, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kozo Sato
- Department of Systems Innovation, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan; Frontier Research Center for Energy and Resource (FRCER), Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Hajime Kobayashi
- Department of Systems Innovation, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan; Frontier Research Center for Energy and Resource (FRCER), Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
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23
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Muraoka H, Kaneda T, Hirahara N, Ito K, Okada S, Kondo T. Efficacy of magnetic resonance imaging texture features of the lateral pterygoid muscle in distinguishing rheumatoid arthritis and osteoarthritis of the temporomandibular joint. Dentomaxillofac Radiol 2023; 52:20220321. [PMID: 36594821 PMCID: PMC9944011 DOI: 10.1259/dmfr.20220321] [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: 09/30/2022] [Revised: 12/06/2022] [Accepted: 12/06/2022] [Indexed: 01/04/2023] Open
Abstract
OBJECTIVES The aim of this study was to assess whether magnetic resonance imaging (MRI) texture features of the lateral pterygoid muscle can distinguish between rheumatoid arthritis (RA) and osteoarthritis (OA) of the temporomandibular joint (TMJ). METHODS The authors extracted 279 texture features from 36 patients with RA and OA from the region of interest set for the lateral pterygoid muscle on short tau inversion recovery (STIR) images using MaZda Ver.3.3. A total of 10 texture features were selected using Fisher's coefficients, as well as probability of error and average correlation coefficients. Data observed to have a non-normal distribution using the Kolmogorov-Smirnov test were compared using the Mann-Whitney U-test. Receiver operating characteristic (ROC) curves were used to assess the ability of the 10 texture features to distinguish RA and OA of the TMJ. RESULTS A total of 10 features (5 Correlation, 3 Run Length Nonuniformity, 1 Sigma, and 1 Teta) were selected from 279 texture features. These texture features revealed significant differences between the RA and OA groups (p < 0.01). The sensitivity, specificity, accuracy, and area under the ROC curve of the texture features for distinguishing RA from OA were 0.78-0.94, 0.89-1.0, 0.86-0.92, and 0.89-0.95, respectively. CONCLUSION MRI texture analysis of the lateral pterygoid muscle may be useful for distinguishing between RA and OA of the TMJ.
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Affiliation(s)
- Hirotaka Muraoka
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Takashi Kaneda
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Naohisa Hirahara
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Kotaro Ito
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Shunya Okada
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Takumi Kondo
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
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Shiina K, Tomiyama H, Tanaka A, Imai T, Hisauchi I, Taguchi I, Sezai A, Toyoda S, Dohi K, Kamiya H, Kida K, Anzai T, Chikamori T, Node K, Ako J, Amano R, Asai M, Eguchi K, Eshima K, Fujiki S, Fujita M, Hikoso S, Hiramitsu S, Hoshide S, Hoshino A, Ikeda Y, Ikehara Y, Inomata T, Inoue T, Ishii K, Ishizaka N, Ito M, Iwahashi N, Iwakura K, Kadokami T, Kanbara T, Kanzaki Y, Kashimura K, Kimura K, Kishi S, Kitada S, Kitakaze M, Kiyosue A, Kodama K, Kojima T, Kondo T, Kubota Y, Kusunose K, Machii N, Matsunaga K, Matsuo Y, Matsuzawa Y, Mikami T, Minamino T, Murohara T, Nagai T, Nagano Y, Nagumo M, Nakamura I, Nakamura K, Nakatani D, Nanasato M, Naruse H, Nishino M, Niwano S, Oguri M, Ohte N, Oikawa M, Okumura T, Okumura M, Onishi K, Oyama JI, Ozaki Y, Saito K, Sakamoto T, Sakata Y, Sakuma M, Sata M, Sekino H, Shimabukuro M, Shimizu W, Suzuki M, Suzuki K, Takahama H, Takahashi N, Takeishi Y, Tamaki S, Tanaka A, Tanimoto S, Teragawa H, Tobushi T, Toita T, Tokuda K, Tsutsui H, Ueda S, Uehara H, Uematsu M, Watada H, Yahagi K, Yamada T, Yamada H, Yoshida T, Yoshihisa A. Canagliflozin independently reduced plasma volume from conventional diuretics in patients with type 2 diabetes and chronic heart failure: a subanalysis of the CANDLE trial. Hypertens Res 2023; 46:495-506. [PMID: 36380202 DOI: 10.1038/s41440-022-01085-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 09/24/2022] [Accepted: 10/03/2022] [Indexed: 11/16/2022]
Abstract
Sodium-glucose cotransporter 2 inhibitors (SGLT2is) reduce the risk of heart failure progression and mortality rates. Moreover, osmotic diuresis induced by SGLT2 inhibition may result in an improved heart failure prognosis. Independent of conventional diuretics in patients with type 2 diabetes (T2D) and chronic heart failure, especially in patients with heart failure with preserved ejection fraction (HFpEF), it is unclear whether SGLT2i chronically reduces estimated plasma volume (ePV). As a subanalysis of the CANDLE trial, which assessed the effect of canagliflozin on N-terminal pro-brain natriuretic peptide (NT-proBNP), we examined the change (%) in ePV over 24 weeks of treatment based on the baseline level associated with diuretic usage. In the CANDLE trial, nearly all patients were clinically stable (NYHA class I-II), with approximately 70% of participants presenting a baseline phenotype of HFpEF. A total of 99 (42.5%) patients were taking diuretics (mostly furosemide) at baseline, while 134 (57.5%) were not. Relative to glimepiride, canagliflozin significantly reduced ePV without worsening renal function in patients in both groups: -4.00% vs. 1.46% (p = 0.020) for the diuretic group and -6.14% vs. 1.28% (p < 0.001) for the nondiuretic group. Furthermore, canagliflozin significantly reduced serum uric acid without causing major electrolyte abnormalities in patients in both subgroups. The long-term beneficial effect of SGLT2i on intravascular congestion could be independent of conventional diuretic therapy without worsening renal function in patients with T2D and HF (HFpEF predominantly). In addition, the beneficial effects of canagliflozin are accompanied by improved hyperuricemia without causing major electrolyte abnormalities.
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Affiliation(s)
- Kazuki Shiina
- Department of Cardiology, Tokyo Medical University, Tokyo, Japan.
| | | | - Atsushi Tanaka
- Department of Cardiovascular Medicine, Saga University, Saga, Japan
| | - Takumi Imai
- Department of Medical Statistics, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Itaru Hisauchi
- Department of Cardiology, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
| | - Isao Taguchi
- Department of Cardiology, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
| | - Akira Sezai
- The Department of Cardiovascular Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Shigeru Toyoda
- Department of Cardiovascular Medicine, Dokkyo Medical University School of Medicine, Tochigi, Japan
| | - Kaoru Dohi
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Haruo Kamiya
- Department of Cardiology, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan
| | - Keisuke Kida
- Department of Pharmacology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Toshihisa Anzai
- Department of Cardiovascular Medicine, Hokkaido University, Sapporo, Japan
| | | | - Koichi Node
- Department of Cardiovascular Medicine, Saga University, Saga, Japan
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Muraoka H, Kaneda T, Hirahara N, Ito K, Kondo T, Ichiki S. Detecting lymphadenopathy affected by peri-implantitis using diffusion-weighted magnetic resonance imaging. Oral Radiol 2023; 39:59-66. [PMID: 35243567 DOI: 10.1007/s11282-022-00601-6] [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: 01/21/2022] [Accepted: 02/18/2022] [Indexed: 01/07/2023]
Abstract
PURPOSE This study aimed to assess peri-implantitis-induced lymphadenopathy on diffusion-weighted imaging (DWI). METHODS This retrospective study was conducted from October 2017 to March 2020 in patients with and without peri-implantitis who underwent magnetic resonance imaging (MRI). Patients in the peri-implantitis group had radiographically confirmed loss of alveolar bone > 2.0 mm and clinical findings such as bleeding on probing, suppuration of tissues surrounding the teeth, probing-pocket depth of > 4 mm, pain on implant function, and clinical implant mobility, whereas those without peri-implantitis had none of the abovementioned clinical findings. The Mann-Whitney U test was used to compare groups, using lymph node (LN) short-axis diameters and apparent diffusion coefficients (ADCs) as the criterion variables and presence or absence of peri-implantitis as the explanatory variable. Receiver operating characteristic (ROC) analysis was done to investigate the effectiveness of LN size and ADC use in detecting peri-implantitis-induced lymphadenopathy. Statistical significance was established at P < 0.05. RESULTS There were 66 lymph nodes from 12 patients analyzed. The mean LN size and ADC were significantly higher in patients with peri-implantitis than in those without (P < 0.01). ROC curve analysis showed cut-off LN sizes of 4.78 and 4.84 mm and cut-off ADCs of 1.12 and 1.09 for lymphadenopathy affected by peri-implantitis corresponding to levels IB and II, respectively. CONCLUSIONS Cervical lymphadenopathy may be an inflammatory finding associated with peri-implantitis.
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Affiliation(s)
- Hirotaka Muraoka
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, 271-8587, Japan.
| | - Takashi Kaneda
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, 271-8587, Japan
| | - Naohisa Hirahara
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, 271-8587, Japan
| | - Kotaro Ito
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, 271-8587, Japan
| | - Takumi Kondo
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, 271-8587, Japan
| | - Shungo Ichiki
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, 271-8587, Japan
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Ohara K, Tsuge N, Watanabe S, Eda H, Ogasawara F, Kondo T, Yoshida S, Kojima K. [Management of iron overload during pregnancy and childbirth in a patient with ferroportin disease]. Rinsho Ketsueki 2023; 64:1410-1414. [PMID: 38072426 DOI: 10.11406/rinketsu.64.1410] [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] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
An asymptomatic woman in her early 40s with a history of hyperferritinemia (5,412 ng/ml) was referred to our hospital after repeated phlebotomy for hemosiderosis. She had unexplained hyperferritinemia, low-normal transferrin saturation, and high hepcidin levels, in the absence of iron overload-induced organ injury. She was diagnosed with ferroportin disease based on detection of the SLC40A1 variant SLC40A1 c.485_487del (p.Val162del) on genetic analysis. Her ferritin levels remained stable during pregnancy, and postpartum anemia was successfully treated with 2-week oral iron therapy. Ferroportin disease is characterized by impaired iron export and preferential iron trapping in tissue macrophages. To reduce risk of anemia, a non-aggressive phlebotomy regimen is recommended in patients with ferroportin disease, which shows a milder clinical course compared with other classical hemochromatosis subtypes.
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Affiliation(s)
- Keito Ohara
- Department of Hematology, Kochi Medical School, Kochi University
| | - Noriko Tsuge
- Department of Hematology, Kochi Medical School, Kochi University
| | | | - Hitomi Eda
- Department of Hematology, Kochi Medical School, Kochi University
| | - Fumiya Ogasawara
- Department of Hematology, Kochi Medical School, Kochi University
| | - Takumi Kondo
- Department of Hematology, Kochi Medical School, Kochi University
| | - Shohei Yoshida
- Department of Hematology, Kochi Medical School, Kochi University
| | - Kensuke Kojima
- Department of Hematology, Kochi Medical School, Kochi University
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Nagasaka H, Sasada T, Takebe S, Yamamoto S, Kondo T, Terao H, Nakaigawa N, Kishida T. Prognostic factors in the use of immune checkpoint inhibitors for metastatic renal cell carcinoma. EUR UROL SUPPL 2022. [DOI: 10.1016/s2666-1683(22)02538-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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28
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Muraoka H, Kondo T, Okada S, Ichiki S, Otsuka K, Kaneda T. Quantitative analysis of age-related changes in cervical lymph nodes using diffusion-weighted imaging. Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology 2022. [DOI: 10.1016/j.ajoms.2022.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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Kondo T, Adachi T, Kobayashi K, Okumura T, Izawa H, Murohara T, McMurray JJV, Yamada S. Frailty and use of treatment in patients with heart failure and reduced ejection fraction. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
In heart failure with reduced ejection fraction (HFrEF), drugs including angiotensin-converting enzyme inhibitors (ACEi)/ angiotensin receptor blockers (ARB), beta-blockers, and mineralocorticoid receptor antagonists (MRA) have been shown to have robust survival benefits. However, these guideline-recommended therapies remain underutilized in clinical practice. Frailty is common in HFrEF and may lead to underprescription of life-saving therapy.
Purpose
We aimed to investigate the association between physical frailty and the use of evidence-based pharmacological therapy for HFrEF, and the impact of this on prognosis
Methods
The FLAGSHIP study included patients hospitalized for acute HF and data on physical frailty were collected prospectively. Of the total 3,272 patients registered in the FLAGSHIP study, 1,041 HFrEF patients (70 years; 73% male) with left ventricular ejection fraction ≤40% were analyzed and were divided into 4 groups by severity of frailty: category I (n=371) [least frail], II (n=275), III (n=224), and IV (n=171) [most frail].
Results
An ACEi/ARB was prescribed in 76% of category I and 53% of category IV patients; for a beta-blocker these proportions were 94% and 76%, respectively; for an MRA they were 55% and 46%, respectively. The proportion of patients using receiving all 3 drugs decreased as frailty increased, with approximately twice the rate of use of triple therapy in category I patients (40.2%) compared to category IV patients (23.4%) [p<0.001] (Figure 1). In adjusted analyses, the severity of frailty was an independent predictor for non-use of an ACEi/ARB (Odds ratio (OR): 1.23, 95% CI: 1.05–1.43, per 1 category increase) and a beta-blocker (OR: 1.32, 95% CI: 1.06–1.64), but not an MRA (OR: 0.97, 95% CI: 0.84–1.12). Risk of the composite outcome of all-cause death or HF rehospitalization increased with decreasing use of treatment across frailty categories: category I-II (Hazard ratio (HR): 1.80, 95% CI: 1.08–2.98, in 0–1 drug with 3 drugs as reference) and III–IV (HR: 1.53, 95% CI: 1.01–2.32). The relationship between the number of HF drugs prescribed and the composite outcome did not differ across frailty categories (p-interaction=0.86). The HRs for all 12 groups, reflecting frailty categories and a number of HF drugs is depicted in Figure 2. The HRs for composite outcome increased with increasing frailty category and with decreasing number of drugs, with an almost 4-fold difference in risk between the least frail patients receiving all three evidence-based therapies and the most frail receiving only 0–1 drug.
Conclusions
Prescription of guideline-recommended therapy decreased as the severity of frailty increased in patients with HFrEF. Sub-optimal medical therapy was associated with a worse outcome and underprescription of guideline-recommended therapy may contribute to the poor prognosis associated with frailty. An effective strategy is needed to improve the medical treatment of frail patients with HFrEF.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): This study issupported by a Grant-in-Aid for Scientifi c Research (A) from the Japan Society for the Promotion of Science (16H01862). ToruKondo receives grants from the Uehara Memorial Foundation and the Japanese Heart Failure Society Tsuchiya Foundation forthe research activities at the University of Glasgow.
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Affiliation(s)
- T Kondo
- University of Glasgow, British Heart Foundation Cardiovascular Research Centre , Glasgow , United Kingdom
| | - T Adachi
- Nagoya University Graduate School of Medicine, Department of Integrated Health Sciences , Nagoya , Japan
| | - K Kobayashi
- Nagoya University Hospital, Department of Rehabilitation , Nagoya , Japan
| | - T Okumura
- Nagoya University Graduate School of Medicine, Department of Cardiology , Nagoya , Japan
| | - H Izawa
- Fujita Health University School of Medicine, Department of Cardiology , Toyoake , Japan
| | - T Murohara
- Nagoya University Graduate School of Medicine, Department of Cardiology , Nagoya , Japan
| | - J J V McMurray
- University of Glasgow, British Heart Foundation Cardiovascular Research Centre , Glasgow , United Kingdom
| | - S Yamada
- Nagoya University Graduate School of Medicine, Department of Integrated Health Sciences , Nagoya , Japan
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Yang M, Kondo T, Butt JH, Abraham WT, Desai AS, Kober L, Martinez FA, Packer M, Pfeffer MA, Rouleau JL, Solomon SD, Zile MR, Jhund PS, McMurray JJV. History of stroke in patients with heart failure: prevalence, baseline characteristics and clinical outcomes. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Stroke is an important but neglected comorbidity in patients with heart failure (HF). Little is known about the characteristics and outcomes of HF patients with a history of stroke.
Purpose
To examine the prevalence of prior stroke in patients with HF and reduced ejection fraction (HFrEF) and HF with preserved ejection fraction (HFpEF), the clinical characteristics of patients with a history of stroke, and the clinical outcomes in patients with prior stroke compared to those without.
Methods
Individual patient data analysis using three recent HFrEF trials (ATMOSPHERE, PARADIGM-HF, and DAPA-HF) and HFpEF trials (CHARM-Preserved, I-Preserve, TOPCAT-Americas, and PARAGON-HF). Cox regression was used to analyze clinical outcomes.
Results
Among 20159 HFrEF patients enrolled, 1683 (8.3%) had a history of stroke and among the 13252 patients with HFpEF 1287 (9.7%) had a prior stroke. Compared to patients without stroke, those with stroke were slightly older and more likely to have a history of hypertension, myocardial infarction, atrial fibrillation, diabetes, carotid artery disease, and peripheral artery disease (for both HFrEF and HFpEF). Patients with a history of stroke had worse NYHA class and KCCQ scores, and a higher rate of fatigue; they also had a higher median NT-proBNP level and lower eGFR than those without prior stroke (whether HFrEF or HFpEF). Systolic BP, pulse pressure and LVEF did not differ susbtantialy between patients with and without a history of stroke. The table shows outcomes according to history of stroke or not, stratified by LVEF phenotype. During follow-up, all fatal and non-fatal outcomes were significantly more common in patients with a history of stroke. The augmentation of risk tended to be greater in patients with HFpEF than HFrEF, but was not statistically different.
Conclusion
Approximately 1 in 11 patients in recent HF trials had a history of stroke and these patients were at higher risk of fatal and non-fatal events than those without prior stroke. HF hospitalization as well as atherothrombotic events (myocardial infarction and stroke) were more common among patients with prior stroke – patients with prior stroke had at least 30% higher risk of all events examined, regardless of LVEF, and more than double incidence of repeat stroke.
Funding Acknowledgement
Type of funding sources: Other.
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Affiliation(s)
- M Yang
- BHF Glasgow Cardiovascular Research Centre , Glasgow , United Kingdom
| | - T Kondo
- BHF Glasgow Cardiovascular Research Centre , Glasgow , United Kingdom
| | - J H Butt
- Rigshospitalet - Copenhagen University Hospital , Copenhagen , Denmark
| | - W T Abraham
- The Ohio State University , Columbus , United States of America
| | - A S Desai
- Brigham and Women'S Hospital, Harvard Medical School , Boston , United States of America
| | - L Kober
- Rigshospitalet - Copenhagen University Hospital , Copenhagen , Denmark
| | - F A Martinez
- National University of Cordoba , Cordoba , Argentina
| | - M Packer
- Baylor University Medical Center , Dallas , United States of America
| | - M A Pfeffer
- Brigham and Women'S Hospital, Harvard Medical School , Boston , United States of America
| | - J L Rouleau
- Montreal Heart Institute , Montreal , Canada
| | - S D Solomon
- Brigham and Women'S Hospital, Harvard Medical School , Boston , United States of America
| | - M R Zile
- Medical University of South Carolina , Charleston , United States of America
| | - P S Jhund
- BHF Glasgow Cardiovascular Research Centre , Glasgow , United Kingdom
| | - J J V McMurray
- BHF Glasgow Cardiovascular Research Centre , Glasgow , United Kingdom
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Kondo T, Jhund PS, Abraham WT, Rouleau JL, Packer M, Desai AS, Kober LV, Solomon SD, Zile MR, Inzucchi SE, Kosiborod MN, Sabatine MS, Ponikowski P, Martinez F, McMurray JJV. Stroke in patients with heart failure and reduced ejection fraction without atrial fibrillation: external validation of a risk model. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.869] [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
Heart failure (HF) ranks only second to atrial fibrillation (AF) as a cause of cardio-embolic stroke. Although anticoagulation reduces this risk in HF patients not in AF, the risk/benefit profile in relatively unselected populations is not favourable. Identification of patients at high risk of stroke may allow targeted and safer use of prophylactic anticoagulant therapy. Previously, we proposed a simple risk model for stroke in patients with HF and reduced ejection fraction (HFrEF). However, this model was derived from the two older trials (published in 2007/2008) and was not externally validated.
Purpose
We aimed to evaluate the current incidence of stroke in patients with HFrEF not in AF receiving modern pharmacological therapy and to validate our stroke prediction model.
Methods
We examined patient-level data from the PARADIGM-HF, ATMOSPHERE, and DAPA-HF trials. The risk score was calculated following: 7.39×(insulin-treated diabetes) + 6.53×(previous stroke) + 2.80×[ln(NT-proBNP (pg/ml)) × 0.1182]). According to the tertile of risk score, we divided the patients into three groups. Patients with AF were defined as those with either AF on an ECG or a history of AF.
Results
Of the total of 20,159 patients (who experienced 590 strokes) enrolled in the three trials, 12,751 patients did not have AF at baseline. Of those, 1,143 patients (9%) had insulin-treated diabetes, 873 patients (6.8%) had a history of the previous stroke, and the median value of NT-proBNP was 1,243 pg/ml. During a median follow-up of 2.0 years, 346 (2.7%) experienced a stroke (11.7 per 1000 patient-years). Figure 1 shows cumulative incidence function plots for stroke according to the tertile of risk score in 12,331 patients whose risk score can be calculated. The number of strokes in tertile 1, 2 and 3 were 80, 102 and 149, respectively. The 3-year cumulative incidence function rates of stroke were 2.0 (95% CI: 1.5–2.5) % in tertile 1, 2.6 (95% CI: 2.1–3.2) % in tertile 2, and 4.3 (95% CI: 3.6–5.2) % in tertile 3, respectively. In patients with tertile 3, the stroke rate was 18.1 per 1000 patient-years (compared to 20.1 per 1000 patient-years in patients with AF not receiving anticoagulation). In the Cox model, risk for stroke increased according to the elevation in the risk score (tertile 2: HR 1.47 (95% CI 1.09–1.97), tertile 3: HR 2.53 (95% CI 1.92–3.33), with tertile 1 as reference). Figure 2 shows calibration plots by comparing observed and predicted probabilities of stroke at 1 to 3 years. Discrimination evaluated using the overall c-index 0.84 (95% CI: 0.75–0.91) was good.
Conclusions
These findings validate a previously described predictive model and confirm that it is possible to identify a subset of HFrEF patients without AF who have a risk of stroke that approximates to that in patients with AF. In these patients, the risk/benefit balance might justify the use of prophylactic anticoagulation, but this hypothesis needs to be tested prospectively.
Funding Acknowledgement
Type of funding sources: Foundation.
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Affiliation(s)
- T Kondo
- University of Glasgow, British Heart Foundation Cardiovascular Research Centre , Glasgow , United Kingdom
| | - P S Jhund
- University of Glasgow, British Heart Foundation Cardiovascular Research Centre , Glasgow , United Kingdom
| | - W T Abraham
- The Ohio State University, Division of Cardiovascular Medicine , Ohio , United States of America
| | - J L Rouleau
- University of Montreal, Montreal Heart Institute , Montreal , Canada
| | - M Packer
- Baylor University Medical Center, Baylor Heart and Vascular Institute , Dallas , United States of America
| | - A S Desai
- Brigham and Women's Hospital, Harvard Medical School, Cardiovascular Division , Boston , United States of America
| | - L V Kober
- Rigshospitalet - Copenhagen University Hospital, Department of Cardiology , Copenhagen , Denmark
| | - S D Solomon
- Brigham and Women's Hospital, Harvard Medical School, Cardiovascular Division , Boston , United States of America
| | - M R Zile
- Medical University of South Carolina , Charleston , United States of America
| | - S E Inzucchi
- Yale University School of Medicine, Section of Endocrinology, Diabetes, and Metabolism , New Haven , United States of America
| | - M N Kosiborod
- St. Luke's Mid America Heart Institute, Department of Cardiology , Kansas City , United States of America
| | - M S Sabatine
- Brigham and Women's Hospital, Harvard Medical School, Thrombolysis in Myocardial Infarction Study Group , Boston , United States of America
| | - P Ponikowski
- Wroclaw Medical University, Department of Heart Disease , Wroclaw , Poland
| | - F Martinez
- Cordoba National University , Cordoba , Argentina
| | - J J V McMurray
- University of Glasgow, British Heart Foundation Cardiovascular Research Centre , Glasgow , United Kingdom
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Tolomeo P, Kondo T, Butt JH, Desai AS, Lefkowitz MP, Rouleau JL, Solomon SD, Swedberg K, Zile MR, Campo G, Jhund PS, Packer M, McMurray JJV. Implications of the 2021 CKD-EPI cystatin C/creatinine eGFR equation for eligibility for therapy in HFrEF: insights from PARADIGM-HF. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Estimated glomerular filtration rate (eGFR) is a key determinant of eligibility for many life-saving therapies in HFrEF. Recently, the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) provided new equations based on creatinine (CKD-EPIcr), cystatin C (CKD-EPIcys) or both (CKD-EPIcyscr) that do not include race. These new equations may reclassify individuals, irrespective of race, from one eGFR category to another, with implications for eligibility for HFrEF treatments.
Purpose
To assess the difference between eGFR estimation using the 2021 CKD-EPIcyscr equation and the 2009 CKD-EPIcr and Modification of Diet in Renal Disease Study (MDRD)-4 equations which are still standard in many European laboratories.
Methods
We included patients from PARADIGM-HF with cystatin C and creatinine values available at the time of randomization. For each patient, baseline eGFRs were calculated using the 3 equations described. Our focus was on patients with chronic kidney disease (CKD) stages III–V.
Results
Overall, 1910 patients were eligible. Mean age was 67.3 (10.1) year and 385 (18.7%) were female. Using 2009 CKD-EPIcr, 779 patients were in CKD stages 3–5, of which 233 (30%) were reclassified to a better CKD stage (higher eGFR) with the 2021 CKD-EPIcyscr equation (Table 1). Similar reclassification was seen when comparing MDRD-4 with the 2021 CKD-EPIcyscr equation: 277 (33%) of 831 patients in CKD stages 3–5 were reclassified to a better CKD stage (Figure 1).
Conclusions
The 2021 CKD-EPIcyscr equation favourably reclassified CKD stage in a large percentage of patients with HFrEF and a low eGFR, potentially increasing the proportion of these patients considered eligible for guideline-recommended therapies.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- P Tolomeo
- University Hospital of Ferrara , Ferrara , Italy
| | - T Kondo
- University of Glasgow, British Heart Foundation Cardiovascular Research Centre , Glasgow , United Kingdom
| | - J H Butt
- University of Glasgow, British Heart Foundation Cardiovascular Research Centre , Glasgow , United Kingdom
| | - A S Desai
- Brigham and Women's, Hospital Harvard Medical School, Cardiovascular Division , Boston , United States of America
| | | | - J L Rouleau
- University of Montreal, Montreal Heart Institute , Montreal , Canada
| | - S D Solomon
- Brigham and Women's, Hospital Harvard Medical School, Cardiovascular Division , Boston , United States of America
| | - K Swedberg
- University of Gothenburg, Department of Molecular and Clinical Medicine , Gothenburg , Sweden
| | - M R Zile
- Medical University of South Carolina , Charleston , United States of America
| | - G Campo
- University Hospital of Ferrara , Ferrara , Italy
| | - P S Jhund
- University of Glasgow, British Heart Foundation Cardiovascular Research Centre , Glasgow , United Kingdom
| | - M Packer
- Baylor University Medical Center, Baylor Heart and Vascular Institute , Dallas , United States of America
| | - J J V McMurray
- University of Glasgow, British Heart Foundation Cardiovascular Research Centre , Glasgow , United Kingdom
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33
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Shinada K, Murakami S, Katakura S, Usio R, Kondo T, Kato T, Yokose T, Kasajima R, Miyagi Y, Saito H. EP11.01-008 Discrepancy in MET Exon 14 Skipping Mutation Measurement Between ArcherMET and Oncomine Dx Target Test System. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.905] [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: 10/14/2022]
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34
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Sumii Y, Fujii N, Fujii K, Kondo T, Urata T, Kimura M, Washio K, Fujiwara H, Asada N, Ennishi D, Nishimori H, Matsuoka K, Otsuka F, Maeda Y. Red blood cell depletion in small‐volume bone marrow processing using manipulation with third‐party red blood cells: A comparison of the performance of the
COBE
spectra and the spectra Optia systems. Transfusion 2022; 62:1829-1838. [DOI: 10.1111/trf.17039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 06/23/2022] [Accepted: 06/29/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Yuichi Sumii
- Division of Blood Transfusion Okayama University Hospital Okayama Japan
- Department of Hematology and Oncology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences Okayama University Okayama Japan
| | - Nobuharu Fujii
- Division of Blood Transfusion Okayama University Hospital Okayama Japan
- Department of Hematology and Oncology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences Okayama University Okayama Japan
| | - Keiko Fujii
- Division of Clinical Laboratory Okayama University Hospital Okayama Japan
- Department of Hematology and Oncology Okayama University Hospital Okayama Japan
| | - Takumi Kondo
- Division of Blood Transfusion Okayama University Hospital Okayama Japan
- Department of Hematology and Oncology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences Okayama University Okayama Japan
| | - Tomohiro Urata
- Division of Blood Transfusion Okayama University Hospital Okayama Japan
- Department of Hematology and Oncology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences Okayama University Okayama Japan
| | - Maiko Kimura
- Division of Blood Transfusion Okayama University Hospital Okayama Japan
- Department of Hematology and Oncology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences Okayama University Okayama Japan
| | - Kana Washio
- Department of Pediatrics/Pediatric Hematology and Oncology Okayama University Hospital Okayama Japan
| | - Hideaki Fujiwara
- Department of Hematology and Oncology Okayama University Hospital Okayama Japan
| | - Noboru Asada
- Department of Hematology and Oncology Okayama University Hospital Okayama Japan
| | - Daisuke Ennishi
- Department of Hematology and Oncology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences Okayama University Okayama Japan
- Center for Comprehensive Genomic Medicine Okayama University Hospital Okayama Japan
| | - Hisakazu Nishimori
- Department of Hematology and Oncology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences Okayama University Okayama Japan
| | - Ken‐ichi Matsuoka
- Department of Hematology and Oncology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences Okayama University Okayama Japan
| | - Fumio Otsuka
- Division of Clinical Laboratory Okayama University Hospital Okayama Japan
- Department of General Medicine Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University Okayama Japan
| | - Yoshinobu Maeda
- Department of Hematology and Oncology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences Okayama University Okayama Japan
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35
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Meguri Y, Asano T, Yoshioka T, Iwamoto M, Ikegawa S, Sugiura H, Kishi Y, Nakamura M, Sando Y, Kondo T, Sumii Y, Maeda Y, Matsuoka KI. Responses of regulatory and effector T-cells to low-dose interleukin-2 differ depending on the immune environment after allogeneic stem cell transplantation. Front Immunol 2022; 13:891925. [PMID: 35983059 PMCID: PMC9379320 DOI: 10.3389/fimmu.2022.891925] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 07/11/2022] [Indexed: 11/13/2022] Open
Abstract
CD4+Foxp3+ regulatory T cells (Tregs) play a central role in the maintenance of immune tolerance after allogeneic hematopoietic stem cell transplantation (HSCT). Tregs promptly respond to low concentrations of IL-2 through the constitutive expression of high-affinity IL-2 receptors. It has been reported that low-dose IL-2 therapy increased circulating Tregs and improved clinical symptoms of chronic GVHD. Clinical studies of IL-2 therapy so far have mainly targeted patients in the chronic phase of transplantation when acute immune responses has subsided. However, the biological and clinical effects of exogenous IL-2 in an acute immune environment have not been well investigated. In the current study, we investigated the impact of exogenous IL-2 therapy on the post-transplant homeostasis of T cell subsets which influence the balance between GVHD and GVL in the acute phase, by setting the various immune environments early after HSCT in murine model. We initially found that 5,000 IU of IL-2 was enough to induce the active proliferation of Treg without influencing other conventional T cells (Tcons) when administered to normal mice. However, activated Tcons showed the response to the same dose of IL-2 in recipients after allogeneic HSCT. In a mild inflammatory environment within a threshold, exogenous IL-2 could effectively modulate Treg homeostasis with just limited influence to activated T cells, which resulted in an efficient GVHD suppression. In contrast, in a severely inflammatory environment, exogenous IL-2 enhanced activated T cells rather than Tregs, which resulted in the exacerbation of GVHD. Of interest, in an immune-tolerant state after transplant, exogenous IL-2 triggered effector T-cells to exert an anti-tumor effect with maintaining GVHD suppression. These data suggested that the responses of Tregs and effector T cells to exogenous IL-2 differ depending on the immune environment in the host, and the mutual balance of the response to IL-2 between T-cell subsets modulates GVHD and GVL after HSCT. Our findings may provide useful information in the optimization of IL-2 therapy, which may be personalized for each patient having different immune status.
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36
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Kondo T, Higo S, Shiba M, Kohama Y, Kameda S, Tabata T, Inoue H, Okuno S, Ogawa S, Nakamura S, Takeda M, Ito E, Li J, Liu L, Kuramoto Y, Lee JK, Takashima S, Miyagawa S, Sawa Y, Hikoso S, Sakata Y. Human-Induced Pluripotent Stem Cell–Derived Cardiomyocyte Model for
TNNT2
Δ160E-Induced Cardiomyopathy. Circ Genom Precis Med 2022; 15:e003522. [PMID: 35861968 PMCID: PMC9584061 DOI: 10.1161/circgen.121.003522] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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] [Indexed: 11/16/2022]
Abstract
The Δ160E mutation in TNNT2, which encodes troponin T, is a rare pathogenic variant identified in patients with hypertrophic cardiomyopathy and is associated with poor prognosis. Thus, a convenient human model recapitulating the pathological phenotype caused by TNNT2 Δ160E is required for therapeutic development.
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Affiliation(s)
- Takumi Kondo
- Department of Cardiovascular Medicine (T.K., M.S., S.K., T.T., H.I., S. Okuno, S. Ogawa, Y.K., J.-K.L., S. Hikoso, Y.S.)
| | - Shuichiro Higo
- Department of Medical Therapeutics for Heart Failure (S. Higo)
| | - Mikio Shiba
- Department of Cardiovascular Medicine (T.K., M.S., S.K., T.T., H.I., S. Okuno, S. Ogawa, Y.K., J.-K.L., S. Hikoso, Y.S.)
| | - Yasuaki Kohama
- National Hospital Organization, Osaka-Minami Medical Center (Y.K.)
| | - Satoshi Kameda
- Department of Cardiovascular Medicine (T.K., M.S., S.K., T.T., H.I., S. Okuno, S. Ogawa, Y.K., J.-K.L., S. Hikoso, Y.S.)
| | - Tomoka Tabata
- Department of Cardiovascular Medicine (T.K., M.S., S.K., T.T., H.I., S. Okuno, S. Ogawa, Y.K., J.-K.L., S. Hikoso, Y.S.)
| | - Hiroyuki Inoue
- Department of Cardiovascular Medicine (T.K., M.S., S.K., T.T., H.I., S. Okuno, S. Ogawa, Y.K., J.-K.L., S. Hikoso, Y.S.)
| | - Shota Okuno
- Department of Cardiovascular Medicine (T.K., M.S., S.K., T.T., H.I., S. Okuno, S. Ogawa, Y.K., J.-K.L., S. Hikoso, Y.S.)
| | - Shou Ogawa
- Department of Cardiovascular Medicine (T.K., M.S., S.K., T.T., H.I., S. Okuno, S. Ogawa, Y.K., J.-K.L., S. Hikoso, Y.S.)
| | | | - Maki Takeda
- Department of Cardiovascular Surgery (M.T., E.I., J.L., L.L., S.M., Y.S.)
| | - Emiko Ito
- Department of Cardiovascular Surgery (M.T., E.I., J.L., L.L., S.M., Y.S.)
| | - Junjun Li
- Department of Cardiovascular Surgery (M.T., E.I., J.L., L.L., S.M., Y.S.)
| | - Li Liu
- Department of Cardiovascular Surgery (M.T., E.I., J.L., L.L., S.M., Y.S.)
| | - Yuki Kuramoto
- Department of Cardiovascular Medicine (T.K., M.S., S.K., T.T., H.I., S. Okuno, S. Ogawa, Y.K., J.-K.L., S. Hikoso, Y.S.)
| | - Jong-Kook Lee
- Department of Cardiovascular Medicine (T.K., M.S., S.K., T.T., H.I., S. Okuno, S. Ogawa, Y.K., J.-K.L., S. Hikoso, Y.S.)
- Department of Cardiovascular Regenerative Medicine (J.-K.L.)
| | - Seiji Takashima
- Department of Medical Biochemistry, Osaka University Graduate School of Medicine (S.T.)
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery (M.T., E.I., J.L., L.L., S.M., Y.S.)
| | - Yoshiki Sawa
- Department of Cardiovascular Surgery (M.T., E.I., J.L., L.L., S.M., Y.S.)
| | - Shungo Hikoso
- Department of Cardiovascular Medicine (T.K., M.S., S.K., T.T., H.I., S. Okuno, S. Ogawa, Y.K., J.-K.L., S. Hikoso, Y.S.)
| | - Yasushi Sakata
- Department of Cardiovascular Medicine (T.K., M.S., S.K., T.T., H.I., S. Okuno, S. Ogawa, Y.K., J.-K.L., S. Hikoso, Y.S.)
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37
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Cecchi R, Sassani M, Agugiaro G, Caroppo E, De Lellis P, Sannella A, Mazza M, Ikeda T, Kondo T, Masotti V. A medico-legal definition of femicide. Leg Med (Tokyo) 2022; 59:102101. [PMID: 35763984 DOI: 10.1016/j.legalmed.2022.102101] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 06/05/2022] [Accepted: 06/19/2022] [Indexed: 11/17/2022]
Abstract
Femicide refers to the extreme form of violence against someone belonging to the female gender, i.e. the killing of a woman. Research shows that, to date, gender-based violence remains largely a hidden phenomenon with prevalence often being underestimated by official statistics and data missing in numerous countries. It can be argued that the under-reporting may be suggestive of a legislative gap that needs addressing. This work aims to reach a shared medico-legal definition of femicide stemming from a comprehensive review of the current legislation of countries around the world. In addition, it appraises forensic pathology studies focusing on the murder of women as well as the most relevant documents published by prominent international organizations fighting violence against women. Review of the literature shows a scarcity of national legislations concerning specifically femicide, despite the attention given to this phenomenon by international organizations fighting violence against women. Additionally, a non-homogeneous framing of the term femicide arises from the forensic pathology literature and national laws. Starting from one of the funding principle of medical ethics - autonomy - authors propose to define femicide as a murder perpetrated because of a failure to recognize the victim's right to self-determination. This definition would give the forensic pathologist a central role in identifying femicide cases among the murders of women. A shared forensic approach is needed, ideally employing standardized methodology to compare international data and to standardize scientific research in the field.
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Affiliation(s)
- R Cecchi
- Institute of Legal Medicine, Department of Medicine and Surgery, University of Parma, Italy.
| | - M Sassani
- Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, United Kingdom
| | - G Agugiaro
- Institute of Legal Medicine, Department of Medicine and Surgery, University of Parma, Italy
| | - E Caroppo
- Department of Mental Health - Local Health Authority Roma 2, Italy
| | - P De Lellis
- Department of Electrical Engineering and Information Technology, University of Naples Federico II, Italy
| | - A Sannella
- Department of Human and Social Sciences, University of Cassino, Italy
| | - M Mazza
- Institute of Psychiatry and Psychology, Department of Geriatrics, Neuroscience and Orthopedics, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - T Ikeda
- Institute of Legal Medicine, Department of Medicine and Surgery, University of Parma, Italy
| | - T Kondo
- Institute of Legal Medicine, Wakayama Medical University School of Medicine Graduate School of Medicine, Japan
| | - V Masotti
- Institute of Legal Medicine, Department of Medicine and Surgery, University of Parma, Italy
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38
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Mori A, Onozawa M, Tsukamoto S, Ishio T, Yokoyama E, Izumiyama K, Saito M, Muraki H, Morioka M, Teshima T, Kondo T. P559: HUMORAL RESPONSE TO MRNA-BASED COVID-19 VACCINE IN PATIENTS WITH MYELOID MALIGNANCIES. Hemasphere 2022. [DOI: 10.1097/01.hs9.0000845124.08444.37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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39
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Mutsuga M, Okumura T, Morimoto R, Kondo T, Ito H, Uchida W, Terazawa S, Tokuda Y, Narita Y, Murohara T, Usui A. Impact of an Improved Standardized Strategy and Individually Tailored Protocol for Heartmate II and Heartmate 3 Left Ventricular Assist Devices on the Incidence of Driveline Infections. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1236] [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
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40
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Kondo T, Fujii N, Fujii K, Sumii Y, Urata T, Kimura M, Matsuda M, Ikegawa S, Washio K, Fujiwara H, Asada N, Ennishi D, Nishimori H, Matsuoka KI, Otsuka F, Maeda Y. Low hematocrit reduces the efficiency of CD34 + cell collection when using the Spectra Optia continuous mononuclear cell collection procedure. Transfusion 2022; 62:1065-1072. [PMID: 35322885 DOI: 10.1111/trf.16856] [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: 11/22/2021] [Revised: 02/07/2022] [Accepted: 02/09/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND CD34+ cell collection efficiency (CE) is the determining factor when calculating processed blood volume (PBV) for leukapheresis (LP). However, the factors affecting CE in the continuous mononuclear cell collection (cMNC) protocol performed by the Spectra Optia apheresis system are not well established. STUDY DESIGN AND METHODS We retrospectively collected the data from 147 consecutive apheresis procedures across 106 healthy donors and 27 patients completed between July 2016 and December 2020 at the Okayama University Hospital. All procedures were performed using the Optia cMNC protocol. RESULTS The median CD34+ CE2 was significantly higher in the donor samples (64.3%) than in the patient samples (46.8%) (p < .0001). WBC counts, hematocrit, and platelet counts were all significantly higher in the donors than in the patients, and there was a moderate positive correlation between CD34+ CE2 and hematocrit (r = .47, p < .0001), with the equation of the line being y = 1.23x + 12.23. In contrast, there was only a very weak correlation between CD34+ CE2 and WBC or platelet count. In addition, low hematocrit correlated with an increased time to interface formation. CONCLUSION These data revealed the negative impact of low hematocrit on the efficiency of CD34+ cell collection when using the Optia cMNC protocol and suggest that hematocrit values should also be considered when determining PBV.
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Affiliation(s)
- Takumi Kondo
- Division of Transfusion, Okayama University Hospital, Okayama, Japan.,Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Nobuharu Fujii
- Division of Transfusion, Okayama University Hospital, Okayama, Japan.,Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Keiko Fujii
- Division of Transfusion, Okayama University Hospital, Okayama, Japan.,Division of Clinical Laboratory, Okayama University Hospital, Okayama, Japan
| | - Yuichi Sumii
- Division of Transfusion, Okayama University Hospital, Okayama, Japan.,Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Tomohiro Urata
- Division of Transfusion, Okayama University Hospital, Okayama, Japan.,Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Maiko Kimura
- Division of Transfusion, Okayama University Hospital, Okayama, Japan.,Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Masayuki Matsuda
- Division of Transfusion, Okayama University Hospital, Okayama, Japan.,Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Shuntaro Ikegawa
- Division of Transfusion, Okayama University Hospital, Okayama, Japan.,Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Kana Washio
- Department of Pediatrics/Pediatric Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Hideaki Fujiwara
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Noboru Asada
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Daisuke Ennishi
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan.,Center for Comprehensive Genomic Medicine, Okayama University Hospital, Okayama, Japan
| | - Hisakazu Nishimori
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Ken-Ichi Matsuoka
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Fumio Otsuka
- Division of Clinical Laboratory, Okayama University Hospital, Okayama, Japan.,Department of General Medicine, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Yoshinobu Maeda
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
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41
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Ito K, Hirahara N, Muraoka H, Okada S, Kondo T, Andreu-Arasa VC, Sakai O, Kaneda T. Normal Variants of the Oral and Maxillofacial Region: Mimics and Pitfalls. Radiographics 2022; 42:506-521. [PMID: 35148245 DOI: 10.1148/rg.210073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A normal variant is defined as an incidental, often asymptomatic, imaging finding that mimics a true pathologic condition. Given the complex anatomy and wide variety of normal variants in the oral and maxillofacial region, a thorough understanding of commonly encountered normal variants in this region is essential to avoid misinterpretation and unnecessary further imaging or interventions. Moreover, familiarity with normal variants that are known to become symptomatic at times is necessary to facilitate further workup and guide the treatment plan. Intraoral radiography and panoramic radiography, which are unique to oral and maxillofacial radiology, provide two-dimensional (2D) images. Hence, the overlapping of structures or the displacement of the tomographic layer on images can confuse radiologists. It is crucial to understand the principle of 2D imaging to avoid being confused by ghost images or optical illusions. In addition, understanding the normal development of the maxillofacial region is essential when interpreting maxillofacial images in children or young adults because the anatomy may be quite different from that of mature adults. Knowledge of changes in the jaw bone marrow and each tissue's growth rate is essential. It is also necessary to know when the tooth germ begins to calcify and the tooth erupts for diagnostic imaging of the maxillofacial region. The authors describe imaging findings and clinical manifestations of common normal variants in the oral and maxillofacial region, divided into four parts: the maxilla, mandible, tooth, and temporomandibular joint, and discuss the imaging approach used to differentiate normal variants from true pathologic conditions. Online supplemental material is available for this article. ©RSNA, 2022.
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Affiliation(s)
- Kotaro Ito
- From the Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba 271-8587, Japan (K.I., N.H., H.M., S.O., T. Kondo, T. Kaneda); and Departments of Radiology (V.C.A.A., O.S.), Otolaryngology-Head and Neck Surgery (O.S.), and Radiation Oncology (O.S.), Boston Medical Center, Boston University School of Medicine, Boston, Mass
| | - Naohisa Hirahara
- From the Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba 271-8587, Japan (K.I., N.H., H.M., S.O., T. Kondo, T. Kaneda); and Departments of Radiology (V.C.A.A., O.S.), Otolaryngology-Head and Neck Surgery (O.S.), and Radiation Oncology (O.S.), Boston Medical Center, Boston University School of Medicine, Boston, Mass
| | - Hirotaka Muraoka
- From the Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba 271-8587, Japan (K.I., N.H., H.M., S.O., T. Kondo, T. Kaneda); and Departments of Radiology (V.C.A.A., O.S.), Otolaryngology-Head and Neck Surgery (O.S.), and Radiation Oncology (O.S.), Boston Medical Center, Boston University School of Medicine, Boston, Mass
| | - Shunya Okada
- From the Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba 271-8587, Japan (K.I., N.H., H.M., S.O., T. Kondo, T. Kaneda); and Departments of Radiology (V.C.A.A., O.S.), Otolaryngology-Head and Neck Surgery (O.S.), and Radiation Oncology (O.S.), Boston Medical Center, Boston University School of Medicine, Boston, Mass
| | - Takumi Kondo
- From the Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba 271-8587, Japan (K.I., N.H., H.M., S.O., T. Kondo, T. Kaneda); and Departments of Radiology (V.C.A.A., O.S.), Otolaryngology-Head and Neck Surgery (O.S.), and Radiation Oncology (O.S.), Boston Medical Center, Boston University School of Medicine, Boston, Mass
| | - V Carlota Andreu-Arasa
- From the Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba 271-8587, Japan (K.I., N.H., H.M., S.O., T. Kondo, T. Kaneda); and Departments of Radiology (V.C.A.A., O.S.), Otolaryngology-Head and Neck Surgery (O.S.), and Radiation Oncology (O.S.), Boston Medical Center, Boston University School of Medicine, Boston, Mass
| | - Osamu Sakai
- From the Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba 271-8587, Japan (K.I., N.H., H.M., S.O., T. Kondo, T. Kaneda); and Departments of Radiology (V.C.A.A., O.S.), Otolaryngology-Head and Neck Surgery (O.S.), and Radiation Oncology (O.S.), Boston Medical Center, Boston University School of Medicine, Boston, Mass
| | - Takashi Kaneda
- From the Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba 271-8587, Japan (K.I., N.H., H.M., S.O., T. Kondo, T. Kaneda); and Departments of Radiology (V.C.A.A., O.S.), Otolaryngology-Head and Neck Surgery (O.S.), and Radiation Oncology (O.S.), Boston Medical Center, Boston University School of Medicine, Boston, Mass
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Shibata N, Kondo T, Morimoto R, Kazama S, Sawamura A, Nishiyama I, Kato T, Hiraiwa H, Okumura T, Murohara T. Clinical value of the HATCH score for predicting adverse outcomes in patients with heart failure. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehab849.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
The HATCH score is employed as a risk assessment tool for atrial fibrillation (AF) development. However, the impact of the HATCH score on the long-term adverse outcomes in patients with acute heart failure (AHF) is unknown.
Aimes
To investigate the clinical value of the HATCH score in AHF.
Methods
From a multicenter AHF registry, we retrospectively evaluated 1,543 consecutive patients admitted with AHF (median age, 78 [69–85] years; 42.3% women) from 2012 to 2019. These patients were divided into five groups based on their HATCH score at admission (scores 0, 1, 2, 3, and 4–7). The correlation between the HATCH score and composite outcome, including all-cause mortality and re-hospitalization due to HF, was analyzed using Kaplan-Meier and Cox proportional-hazard analyses.
Results
The median HATCH score was 2 [1-3]. During the follow-up period (median, 16.8 months), the composite endpoint occurred in 691 patients (44.8%), including 416 (27%) patients who died and 455 (29.5%) patients requiring re-hospitalizations due to HF. The Kaplan-Meier analysis showed a significant increase in the composite endpoint with increasing HATCH score (log-rank, p < 0.001). The multivariate Cox regression model revealed that the HATCH score was an independent predictor of the composite endpoint (hazard ratio [HR] 1.181; 95% confidence interval [CI]: 1.111–1.255; p < 0.001) with all-cause mortality (HR 1.153, 95% CI: 1.065–1.249; p < 0.001) and re-hospitalizations due to HF (HR 1.21; 95% CI: 1.124–1.303; p < 0.001) in patients with AHF.
Conclusions
The HATCH score is an independent predictor of adverse outcomes in patients with AHF. Abstract Figure. Kaplan-Meier analysis for outcome
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Affiliation(s)
- N Shibata
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - T Kondo
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - R Morimoto
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - S Kazama
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - A Sawamura
- Ichinomiya municipal hospital, Department of cardiology, Ichinomiya, Japan
| | - I Nishiyama
- Nagoya Ekisaikai Hospital, Department of Cardiology, Nagoya, Japan
| | - T Kato
- Nagoya Ekisaikai Hospital, Department of Cardiology, Nagoya, Japan
| | - H Hiraiwa
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - T Okumura
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - T Murohara
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
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Muraoka H, Ito K, Hirahara N, Ichiki S, Kondo T, Kaneda T. Magnetic resonance imaging texture analysis in the quantitative evaluation of acute osteomyelitis of the mandibular bone. Dentomaxillofac Radiol 2022; 51:20210321. [PMID: 34558304 PMCID: PMC8693326 DOI: 10.1259/dmfr.20210321] [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] [Indexed: 01/03/2023] Open
Abstract
OBJECTIVES Accurate assessment of radiological images can help in early diagnosis and therapy of suppurative osteomyelitis (OM). The purpose of this study was to apply texture analysis to MRI as a means of quantitatively evaluating acute OM of the mandible. METHODS We analyzed the data from 38 patients who complained of pain and underwent MRI between April 2017 and March 2019. From the MRIs of these patients, with (n = 19) and without OM (n = 19), 279 radiomics features were extracted using short tau inversion recovery, data of the regions of interest and analyzed with MaZda v. 3.3. 10 features, including one histogram feature (90th percentile), eight gray-level co-occurrence matrix features (Sum Averg), and one gray-level run-length matrix feature (Horzl_RLNonUni), were selected using Fisher coefficient and compared between the acute OM and non-OM groups. The two groups were compared using Mann-Whitney U test with p value set at 0.05. RESULTS All 10 radiomics features showed significant differences between the acute OM and non-OM groups (p < 0.05). CONCLUSIONS MRI texture analysis has potential application in radiomics diagnosis of acute OM of the mandible.
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Affiliation(s)
- Hirotaka Muraoka
- Department of Radiology, Nihon University School of Dentistry, Matsudo, Japan
| | - Kotaro Ito
- Department of Radiology, Nihon University School of Dentistry, Matsudo, Japan
| | - Naohisa Hirahara
- Department of Radiology, Nihon University School of Dentistry, Matsudo, Japan
| | - Shungo Ichiki
- Department of Radiology, Nihon University School of Dentistry, Matsudo, Japan
| | - Takumi Kondo
- Department of Radiology, Nihon University School of Dentistry, Matsudo, Japan
| | - Takashi Kaneda
- Department of Radiology, Nihon University School of Dentistry, Matsudo, Japan
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Inoue H, Nakamura S, Higo S, Shiba M, Kohama Y, Kondo T, Kameda S, Tabata T, Okuno S, Ikeda Y, Li J, Liu L, Yamazaki S, Takeda M, Ito E, Takashima S, Miyagawa S, Sawa Y, Hikoso S, Sakata Y. Modeling reduced contractility and impaired desmosome assembly due to plakophilin-2 deficiency using isogenic iPS cell-derived cardiomyocytes. Stem Cell Reports 2022; 17:337-351. [PMID: 35063130 PMCID: PMC8828557 DOI: 10.1016/j.stemcr.2021.12.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 12/13/2022] Open
Abstract
Loss-of-function mutations in PKP2, which encodes plakophilin-2, cause arrhythmogenic cardiomyopathy (AC). Restoration of deficient molecules can serve as upstream therapy, thereby requiring a human model that recapitulates disease pathology and provides distinct readouts in phenotypic analysis for proof of concept for gene replacement therapy. Here, we generated isogenic induced pluripotent stem cell-derived cardiomyocytes (iPSC-CMs) with precisely adjusted expression of plakophilin-2 from a patient with AC carrying a heterozygous frameshift PKP2 mutation. After monolayer differentiation, plakophilin-2 deficiency led to reduced contractility, disrupted intercalated disc structures, and impaired desmosome assembly in iPSC-CMs. Allele-specific fluorescent labeling of endogenous DSG2 encoding desmoglein-2 in the generated isogenic lines enabled real-time desmosome-imaging under an adjusted dose of plakophilin-2. Adeno-associated virus-mediated gene replacement of PKP2 recovered contractility and restored desmosome assembly, which was sequentially captured by desmosome-imaging in plakophilin-2-deficient iPSC-CMs. Our isogenic set of iPSC-CMs recapitulates AC pathology and provides a rapid and convenient cellular platform for therapeutic development. Generation of isogenic iPSC-CMs with a precise dose of plakophilin-2 Modeling reduced contractility and impaired desmosome assembly using iPSC-CMs Generation of isogenic iPSC-CMs for desmosome-imaging Proof of concept of PKP2 replacement using isogenic plakophilin-2-deficient iPSC-CMs
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Affiliation(s)
- Hiroyuki Inoue
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | | | - Shuichiro Higo
- Department of Medical Therapeutics for Heart Failure, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
| | - Mikio Shiba
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Yasuaki Kohama
- Cardiovascular Division, National Hospital Organization, Osaka-Minami Medical Center, Kawachinagano, Osaka 586-8512, Japan
| | - Takumi Kondo
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Satoshi Kameda
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Tomoka Tabata
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Shota Okuno
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Yoshihiko Ikeda
- Department of Pathology, National Cerebral and Cardiovascular Center, Suita, Osaka 564-8565, Japan
| | - Junjun Li
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan; Department of Design for Tissue Regeneration, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Li Liu
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan; Department of Design for Tissue Regeneration, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Satoru Yamazaki
- Department of Molecular Pharmacology, National Cerebral and Cardiovascular Center, Suita, Osaka 564-8565, Japan
| | - Maki Takeda
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Emiko Ito
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Seiji Takashima
- Department of Medical Biochemistry, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Yoshiki Sawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Shungo Hikoso
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Yasushi Sakata
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
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Delbecq F, Kondo T, Sugai S, Bodelet M, Mathon A, Paris J, Sirkia L, Lefebvre C, Jeux V. A study for the production of a polysaccharide based hydrogel ink composites as binder for modification of carbon paper electrodes covered with PEDOT:PSS. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Hirabayashi T, Yasuhara S, Shoji S, Yamaguchi A, Abe H, Ueda S, Zhu H, Kondo T, Miyauchi M. Fabrication of Hydrogen Boride Thin Film by Ion Exchange in MgB 2. Molecules 2021; 26:molecules26206212. [PMID: 34684790 PMCID: PMC8540303 DOI: 10.3390/molecules26206212] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 10/04/2021] [Accepted: 10/09/2021] [Indexed: 11/16/2022] Open
Abstract
In this study, hydrogen boride films are fabricated by ion-exchange treatment on magnesium diboride (MgB2) films under ambient temperature and pressure. We prepared oriented MgB2 films on strontium titanate (SrTiO3) substrates using pulsed laser deposition (PLD). Subsequently, these films were treated with ion exchangers in acetonitrile solution. TOF-SIMS analysis evidenced that hydrogen species were introduced into the MgB2 films by using two types of ion exchangers: proton exchange resin and formic acid. According to the HAXPES analysis, negatively charged boron species were preserved in the films after the ion-exchange treatment. In addition, the FT-IR analysis suggested that B-H bonds were formed in the MgB2 films following the ion-exchange treatment. The ion-exchange treatment using formic acid was more efficient compared to the resin treatment; with respect to the amount of hydrogen species introduced into the MgB2 films. These ion-exchanged films exhibited photoinduced hydrogen release as observed in a powder sample. Based on the present study, we expect to be able to control the morphology and hydrogen content of hydrogen boride thin films by optimising the ion-exchange treatment process, which will be useful for further studies and device applications.
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Affiliation(s)
- T. Hirabayashi
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Tokyo 152-8552, Japan; (T.H.); (S.Y.); (S.S.); (A.Y.)
- Department of Mechanical Engineering, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China;
| | - S. Yasuhara
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Tokyo 152-8552, Japan; (T.H.); (S.Y.); (S.S.); (A.Y.)
| | - S. Shoji
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Tokyo 152-8552, Japan; (T.H.); (S.Y.); (S.S.); (A.Y.)
- Department of Materials Science & Engineering, Cornell University, Ithaca, NY 14853, USA
| | - A. Yamaguchi
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Tokyo 152-8552, Japan; (T.H.); (S.Y.); (S.S.); (A.Y.)
| | - H. Abe
- Center for Green Research on Energy and Environmental Materials, National Institute for Materials Science, Tsukuba 305-0044, Japan;
| | - S. Ueda
- Synchrotron X-ray Station at SPring-8, National Institute for Materials Science, Hyogo 679-5148, Japan;
- Research Center for Advanced Measurement and Characterization, National Institute for Materials Science, Tsukuba 305-0047, Japan
- Research Center for Functional Materials, National Institute for Materials Science, Tsukuba 305-0044, Japan
| | - H. Zhu
- Department of Mechanical Engineering, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China;
| | - T. Kondo
- Department of Materials Science and Tsukuba Research Center for Energy Materials Science, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8573, Japan
- Materials Research Center for Element Strategy, Tokyo Institute of Technology, Yokohama 226-8503, Japan
- Correspondence: (T.K.); (M.M.)
| | - M. Miyauchi
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Tokyo 152-8552, Japan; (T.H.); (S.Y.); (S.S.); (A.Y.)
- Correspondence: (T.K.); (M.M.)
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Araki T, Okumura T, Mizutani T, Kimura Y, Kazama S, Shibata N, Oishi H, Kuwayama T, Hiraiwa H, Kondo T, Morimoto R, Takefuji M, Murohara T. Serum autotaxin level predicts future cardiac events in patients with dilated cardiomyopathy. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1730] [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
Autotaxin (ATX) has been reported to promote myocardial inflammation and subsequent cardiac remodeling through lysophosphatidic acid (LPA) production. However, the prognostic impact of ATX has not been clarified in dilated cardiomyopathy (DCM).
Purpose
We aimed to investigate the prognostic impact of ATX in patients with DCM.
Methods
We enrolled 104 DCM patients (49.8 years, 76 males). The subjects underwent blood sampling, echocardiography, cardiac catheterization, and endomyocardial biopsy. Gender differences in serum ATX levels have been reported, thus we divided the subjects into two groups using median serum ATX levels for men and women: High-ATX group and Low-ATX group. All patients were followed up by expert cardiologists. The cardiac event was defined as a composite of cardiac death and hospitalization for worsening heart failure.
Results
Eighty-nine percent of the subjects were classified as New York Heart Association functional class I or II. Female patients had higher serum ATX levels than male patients, with median values of 257.0 ng/mL and 203.5 ng/mL, respectively (Figure A). The average left ventricular ejection fraction and brain natriuretic peptide levels were 30.6% and 122.5 pg/mL. In survival analysis, cumulative event-free probability was significantly lower in High ATX group (p=0.007, Figure B). In Cox proportional hazards analysis, High-ATX was one of the independent predictors of composite cardiac events (Hazards Ratio, 2.575; p=0.043). On the other hand, high sensitive C-reactive protein and collagen volume fraction in myocardial samples were not significant predictors.
Conclusion
High serum ATX level was associated with poor prognosis in patients with DCM.
Funding Acknowledgement
Type of funding sources: None. Gender difference in autotaxin levelsSurvival analysis of cardiac events
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Affiliation(s)
- T Araki
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - T Okumura
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - T Mizutani
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - Y Kimura
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - S Kazama
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - N Shibata
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - H Oishi
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - T Kuwayama
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - H Hiraiwa
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - T Kondo
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - R Morimoto
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - M Takefuji
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - T Murohara
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
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Hiraiwa H, Okumura T, Sawamura A, Kondo T, Araki T, Mizutani T, Kazama S, Kimura Y, Shibata N, Oishi H, Kuwayama T, Furusawa K, Morimoto R, Murohara T. Clinical significance of spleen size in patients with heart failure. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The spleen is an important organ that stores blood, releases erythrocytes or monocytes, and destroys no-longer-needed platelets. It can reserve 20–30% of the total blood volume, and its size is reduced in hypovolemic shock. However, the clinical significance of the spleen size in patients with heart failure (HF) remains unclear.
Purpose
The purpose of this study was to investigate the relationship between spleen size, hemodynamic parameters, and prognosis in patients with HF.
Methods
A total of 219 patients with clinically stable HF were enrolled. All patients underwent right heart catheterisation and computed tomography. The spleen size was measured using computed tomography volumetry. In addition, spleen volume was assessed using the spleen volume index (SVI), corrected for body surface area. Cardiac events were composite endpoints of cardiac death, hospitalisation for worsening HF, fatal arrhythmias, implantation of cardiac devices, implantation of left ventricular assist devices, and unexpected percutaneous coronary intervention or cardiac surgery. Spearman's rank correlation coefficient was used to examine the relationship between spleen volume and hemodynamic parameters. Multivariate Cox hazard regression models were used to investigate whether SVI was an independent determinant of cardiac events.
Results
Of the 219 patients (median age, 54 [interquartile range] 46–64 years), 145 (66%) were males. The median (interquartile range) spleen volume and SVI was 118.0 (91.5–156.0) mL and 67.8 (54.9–87.2) mL/m2, respectively. SVI was positively correlated with cardiac output (r=0.269, P<0.001), and negatively correlated with systemic vascular resistance (r=−0.302, P<0.001) (Figure 1). A total of 70 cardiac events were observed, and the optimal cut-off value of SVI for cardiac events was 68.9 mL/m2 in the receiver operating characteristic analysis. Patients were divided into two groups: low-SVI (n=107, <68.9 mL/m2) and high-SVI groups (n=112, ≥68.9 mL/m2). Blood adrenaline concentration was higher in the low-SVI group than in the high-SVI group (0.039 [0.020–0.057] ng/mL vs 0.026 [0.014–0.044] ng/mL, P=0.004). The low-SVI group had more cardiac events than the high-SVI group (log-rank test, P<0.001) (Figure 2). In the multivariate Cox proportional hazard model, the low-SVI group was an independent predictor of cardiac events, even when adjusted for the conventional validated HF risk score, blood catecholamine levels, and hemodynamic parameters.
Conclusion
The spleen size may affect the prognosis in patients with HF, reflecting haemodynamics, including systemic circulating blood volume status and sympathetic nerve activity.
Funding Acknowledgement
Type of funding sources: None. Figure 1Figure 2
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Affiliation(s)
- H Hiraiwa
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - T Okumura
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - A Sawamura
- Ichinomiya municipal hospital, Department of Cardiology, Ichinomiya, Japan
| | - T Kondo
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - T Araki
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - T Mizutani
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - S Kazama
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - Y Kimura
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - N Shibata
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - H Oishi
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - T Kuwayama
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - K Furusawa
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - R Morimoto
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - T Murohara
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
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Shibata N, Hiraiwa H, Kazama S, Kimura Y, Araki T, Mizutani T, Oishi H, Kuwayama T, Kondo T, Morimoto R, Okumura T, Murohara T. Clinical impact of pulmonary artery to aorta diameter ratio on left ventricular reverse remodeling in patients with dilated cardiomyopathy. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0757] [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
Left ventricular reverse remodeling (LVRR) is an important predictor for a good prognosis in patients with dilated cardiomyopathy (DCM). Previous reports indicated the pulmonary artery diameter (PAD) to ascending aortic diameter (AoD) ratio as a predictor of adverse outcomes in heart failure patients. However, the impact of the PAD/AoD ratio for predicting LVRR in patients with DCM is unknown.
Aim
The aim of this study is to investigate the association between PAD/AoD ratio and LVRR in patients with DCM.
Methods
From a prospective study, clinically stable DCM patients who were investigated the LVRR on echocardiography and underwent CT at baseline were enrolled. LVRR is defined as left ventricular (LV) ejection fraction increase of 10% and a decrease in indexed LV end-diastolic diameter of 10% compared to those at baseline. PAD and AoD data was collected with nonenhanced computed tomography images at baseline.
Results
In sixty-nine patients (mean age 50.0±13.3 years), the mean LV ejection fraction was 29.8%, and mean LV end-diastolic dimension was 64.5mm, and both of which data was no significant difference between patients with or without LVRR. LVRR was observed in 23 (33.3%) patients. The PAD/AoD ratio was significantly lower in patients with LVRR than without LVRR (81.4% vs. 92.4%, p=0.003). By ROC analysis, the best cut-off for the detection of LVRR was found for a PAD/AoD ratio of 0.9. From multivariate analyses, PAD/AoD ratio was identified as a significant predictor of LVRR. After a median follow-up duration of 2.5 years, the DCM patients with PAD/AoD≥0.9 revealed a significant higher cardiac event than those with PAD/AoD<0.9 (log-rank, p=0.007)
Conclusions
The PAD/AoD ratio is useful for predicting LVRR in patients with DCM. The DCM patients with high PAD/AoD ratio had a poor long-term outcome.
Funding Acknowledgement
Type of funding sources: None. ROC curve for LVRR predictionKaplan-Meier survival curves
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Affiliation(s)
- N Shibata
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - H Hiraiwa
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - S Kazama
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - Y Kimura
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - T Araki
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - T Mizutani
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - H Oishi
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - T Kuwayama
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - T Kondo
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - R Morimoto
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - T Okumura
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - T Murohara
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
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50
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Okada S, Ito K, Muraoka H, Hirahara N, Itakura G, Ichiki S, Komatsu T, Kondo T, Kaneda T. Quantitative assessment of the mandibular bone marrow of diabetes mellitus patients using diffusion-weighted magnetic resonance imaging. Oral Radiol 2021; 38:349-355. [PMID: 34505258 DOI: 10.1007/s11282-021-00564-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 08/24/2021] [Indexed: 11/24/2022]
Abstract
PURPOSE The purpose of this study was to assess quantitatively the mandibular bone marrow of patients with and without diabetes mellitus (DM) using the apparent diffusion coefficient (ADC) values on diffusion-weighted imaging (DWI). METHODS 65 DM patients (28 men, 37 women, 29-84 years of age, mean age 55.7 ± 15.7 years) and age-, sex- and periodontitis stage-matched 65 non-DM patients who had underwent MRI between April 2006 and March 2018 were included in this study. The ADC was calculated using the ADC visualization tool implemented in a dedicated off-line workstation. The regions of interest (ROI) were manually placed on the ADC map on which the mandibular bone marrow from the lower first molar to the lower second molar was observed in patients with and without DM. Statistical analysis was performed using the Mann-Whitney U test and receiver operating characteristic (ROC) curve analysis. P values < 0.05 were considered statistically significant. RESULTS The mean ADC values of the mandibular bone marrow of patients with and without DM were 1.18 ± 0.21 × 10-3 mm2/s and 0.83 ± 0.14 × 10-3 mm2/s, respectively. The ADC values of DM patients were significantly higher than those of patients without DM. CONCLUSION The ADC values allowed the quantitative evaluation of the mandibular bone marrow of DM patients. DWI might serve as a new and noninvasive method to assess the presence of DM.
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Affiliation(s)
- Shunya Okada
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, 271-8587, Japan.
| | - Kotaro Ito
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, 271-8587, Japan
| | - Hirotaka Muraoka
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, 271-8587, Japan
| | - Naohisa Hirahara
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, 271-8587, Japan
| | - Go Itakura
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, 271-8587, Japan
| | - Shungo Ichiki
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, 271-8587, Japan
| | - Tomohiro Komatsu
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, 271-8587, Japan
| | - Takumi Kondo
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, 271-8587, Japan
| | - Takashi Kaneda
- Department of Radiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba, 271-8587, Japan
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